From f0b7fc9cf3b1195bed4762b630917a96ace6dc4c Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 5 May 2018 16:12:39 +0300 Subject: [PATCH 001/132] protobuf --- p2p/host/autonat/pb/autonat.pb.go | 208 ++++++++++++++++++++++++++++++ p2p/host/autonat/pb/autonat.proto | 34 +++++ 2 files changed, 242 insertions(+) create mode 100644 p2p/host/autonat/pb/autonat.pb.go create mode 100644 p2p/host/autonat/pb/autonat.proto diff --git a/p2p/host/autonat/pb/autonat.pb.go b/p2p/host/autonat/pb/autonat.pb.go new file mode 100644 index 0000000000..79a09913b8 --- /dev/null +++ b/p2p/host/autonat/pb/autonat.pb.go @@ -0,0 +1,208 @@ +// Code generated by protoc-gen-gogo. +// source: autonat.proto +// DO NOT EDIT! + +/* +Package autonat_pb is a generated protocol buffer package. + +It is generated from these files: + autonat.proto + +It has these top-level messages: + Message +*/ +package autonat_pb + +import proto "github.com/gogo/protobuf/proto" +import fmt "fmt" +import math "math" + +// Reference imports to suppress errors if they are not otherwise used. +var _ = proto.Marshal +var _ = fmt.Errorf +var _ = math.Inf + +type Message_MessageType int32 + +const ( + Message_DIAL Message_MessageType = 0 + Message_DIAL_RESPONSE Message_MessageType = 1 +) + +var Message_MessageType_name = map[int32]string{ + 0: "DIAL", + 1: "DIAL_RESPONSE", +} +var Message_MessageType_value = map[string]int32{ + "DIAL": 0, + "DIAL_RESPONSE": 1, +} + +func (x Message_MessageType) Enum() *Message_MessageType { + p := new(Message_MessageType) + *p = x + return p +} +func (x Message_MessageType) String() string { + return proto.EnumName(Message_MessageType_name, int32(x)) +} +func (x *Message_MessageType) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Message_MessageType_value, data, "Message_MessageType") + if err != nil { + return err + } + *x = Message_MessageType(value) + return nil +} + +type Message_ResponseStatus int32 + +const ( + Message_OK Message_ResponseStatus = 0 + Message_E_DIAL_ERROR Message_ResponseStatus = 100 + Message_E_DIAL_REFUSED Message_ResponseStatus = 101 + Message_E_INTERNAL_ERROR Message_ResponseStatus = 200 +) + +var Message_ResponseStatus_name = map[int32]string{ + 0: "OK", + 100: "E_DIAL_ERROR", + 101: "E_DIAL_REFUSED", + 200: "E_INTERNAL_ERROR", +} +var Message_ResponseStatus_value = map[string]int32{ + "OK": 0, + "E_DIAL_ERROR": 100, + "E_DIAL_REFUSED": 101, + "E_INTERNAL_ERROR": 200, +} + +func (x Message_ResponseStatus) Enum() *Message_ResponseStatus { + p := new(Message_ResponseStatus) + *p = x + return p +} +func (x Message_ResponseStatus) String() string { + return proto.EnumName(Message_ResponseStatus_name, int32(x)) +} +func (x *Message_ResponseStatus) UnmarshalJSON(data []byte) error { + value, err := proto.UnmarshalJSONEnum(Message_ResponseStatus_value, data, "Message_ResponseStatus") + if err != nil { + return err + } + *x = Message_ResponseStatus(value) + return nil +} + +type Message struct { + Type *Message_MessageType `protobuf:"varint,1,opt,name=type,enum=autonat.pb.Message_MessageType" json:"type,omitempty"` + Dial *Message_Dial `protobuf:"bytes,2,opt,name=dial" json:"dial,omitempty"` + DialResponse *Message_DialResponse `protobuf:"bytes,3,opt,name=dialResponse" json:"dialResponse,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Message) Reset() { *m = Message{} } +func (m *Message) String() string { return proto.CompactTextString(m) } +func (*Message) ProtoMessage() {} + +func (m *Message) GetType() Message_MessageType { + if m != nil && m.Type != nil { + return *m.Type + } + return Message_DIAL +} + +func (m *Message) GetDial() *Message_Dial { + if m != nil { + return m.Dial + } + return nil +} + +func (m *Message) GetDialResponse() *Message_DialResponse { + if m != nil { + return m.DialResponse + } + return nil +} + +type Message_PeerInfo struct { + Id []byte `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"` + Addrs [][]byte `protobuf:"bytes,2,rep,name=addrs" json:"addrs,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Message_PeerInfo) Reset() { *m = Message_PeerInfo{} } +func (m *Message_PeerInfo) String() string { return proto.CompactTextString(m) } +func (*Message_PeerInfo) ProtoMessage() {} + +func (m *Message_PeerInfo) GetId() []byte { + if m != nil { + return m.Id + } + return nil +} + +func (m *Message_PeerInfo) GetAddrs() [][]byte { + if m != nil { + return m.Addrs + } + return nil +} + +type Message_Dial struct { + Peer *Message_PeerInfo `protobuf:"bytes,1,opt,name=peer" json:"peer,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Message_Dial) Reset() { *m = Message_Dial{} } +func (m *Message_Dial) String() string { return proto.CompactTextString(m) } +func (*Message_Dial) ProtoMessage() {} + +func (m *Message_Dial) GetPeer() *Message_PeerInfo { + if m != nil { + return m.Peer + } + return nil +} + +type Message_DialResponse struct { + Status *Message_ResponseStatus `protobuf:"varint,1,opt,name=status,enum=autonat.pb.Message_ResponseStatus" json:"status,omitempty"` + StatusText *string `protobuf:"bytes,2,opt,name=statusText" json:"statusText,omitempty"` + Addr []byte `protobuf:"bytes,3,opt,name=addr" json:"addr,omitempty"` + XXX_unrecognized []byte `json:"-"` +} + +func (m *Message_DialResponse) Reset() { *m = Message_DialResponse{} } +func (m *Message_DialResponse) String() string { return proto.CompactTextString(m) } +func (*Message_DialResponse) ProtoMessage() {} + +func (m *Message_DialResponse) GetStatus() Message_ResponseStatus { + if m != nil && m.Status != nil { + return *m.Status + } + return Message_OK +} + +func (m *Message_DialResponse) GetStatusText() string { + if m != nil && m.StatusText != nil { + return *m.StatusText + } + return "" +} + +func (m *Message_DialResponse) GetAddr() []byte { + if m != nil { + return m.Addr + } + return nil +} + +func init() { + proto.RegisterType((*Message)(nil), "autonat.pb.Message") + proto.RegisterType((*Message_PeerInfo)(nil), "autonat.pb.Message.PeerInfo") + proto.RegisterType((*Message_Dial)(nil), "autonat.pb.Message.Dial") + proto.RegisterType((*Message_DialResponse)(nil), "autonat.pb.Message.DialResponse") + proto.RegisterEnum("autonat.pb.Message_MessageType", Message_MessageType_name, Message_MessageType_value) + proto.RegisterEnum("autonat.pb.Message_ResponseStatus", Message_ResponseStatus_name, Message_ResponseStatus_value) +} diff --git a/p2p/host/autonat/pb/autonat.proto b/p2p/host/autonat/pb/autonat.proto new file mode 100644 index 0000000000..53999193c5 --- /dev/null +++ b/p2p/host/autonat/pb/autonat.proto @@ -0,0 +1,34 @@ +package autonat.pb; + +message Message { + enum MessageType { + DIAL = 0; + DIAL_RESPONSE = 1; + } + + enum ResponseStatus { + OK = 0; + E_DIAL_ERROR = 100; + E_DIAL_REFUSED = 101; + E_INTERNAL_ERROR = 200; + } + + message PeerInfo { + optional bytes id = 1; + repeated bytes addrs = 2; + } + + message Dial { + optional PeerInfo peer = 1; + } + + message DialResponse { + optional ResponseStatus status = 1; + optional string statusText = 2; + optional bytes addr = 3; + } + + optional MessageType type = 1; + optional Dial dial = 2; + optional DialResponse dialResponse = 3; +} From 1ad785cc023fc33f8a4fd0fdc3f0177992afde84 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 5 May 2018 16:45:58 +0300 Subject: [PATCH 002/132] basic client --- p2p/host/autonat/client.go | 83 ++++++++++++++++++++++++++++++++++++++ p2p/host/autonat/proto.go | 23 +++++++++++ 2 files changed, 106 insertions(+) create mode 100644 p2p/host/autonat/client.go create mode 100644 p2p/host/autonat/proto.go diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go new file mode 100644 index 0000000000..6709abcd1a --- /dev/null +++ b/p2p/host/autonat/client.go @@ -0,0 +1,83 @@ +package autonat + +import ( + "context" + "fmt" + + pb "github.com/libp2p/go-libp2p-autonat/pb" + + ggio "github.com/gogo/protobuf/io" + host "github.com/libp2p/go-libp2p-host" + inet "github.com/libp2p/go-libp2p-net" + peer "github.com/libp2p/go-libp2p-peer" + pstore "github.com/libp2p/go-libp2p-peerstore" + ma "github.com/multiformats/go-multiaddr" +) + +type AutoNATClient interface { + Dial(ctx context.Context) (ma.Multiaddr, error) +} + +type AutoNATError struct { + Status pb.Message_ResponseStatus + Text string +} + +func NewAutoNATClient(h host.Host, p peer.ID) AutoNATClient { + return &client{h: h, p: p} +} + +type client struct { + h host.Host + p peer.ID +} + +func (c *client) Dial(ctx context.Context) (ma.Multiaddr, error) { + s, err := c.h.NewStream(ctx, c.p, AutoNATProto) + if err != nil { + return nil, err + } + defer s.Close() + + r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) + w := ggio.NewDelimitedWriter(s) + + req := newDialMessage(pstore.PeerInfo{ID: c.h.ID(), Addrs: c.h.Addrs()}) + err = w.WriteMsg(req) + if err != nil { + return nil, err + } + + var res pb.Message + err = r.ReadMsg(&res) + if err != nil { + return nil, err + } + + if res.GetType() != pb.Message_DIAL_RESPONSE { + return nil, fmt.Errorf("Unexpected response: %s", res.GetType().String()) + } + + status := res.GetDialResponse().GetStatus() + switch status { + case pb.Message_OK: + addr := res.GetDialResponse().GetAddr() + return ma.NewMultiaddrBytes(addr) + + default: + return nil, AutoNATError{Status: status, Text: res.GetDialResponse().GetStatusText()} + } +} + +func (e AutoNATError) Error() string { + return fmt.Sprintf("AutoNAT error: %s (%s)", e.Text, e.Status.String()) +} + +func (e AutoNATError) IsDialError() bool { + return e.Status == pb.Message_E_DIAL_ERROR +} + +func IsDialError(e error) bool { + ae, ok := e.(AutoNATError) + return ok && ae.IsDialError() +} diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go new file mode 100644 index 0000000000..142469ce65 --- /dev/null +++ b/p2p/host/autonat/proto.go @@ -0,0 +1,23 @@ +package autonat + +import ( + pb "github.com/libp2p/go-libp2p-autonat/pb" + + pstore "github.com/libp2p/go-libp2p-peerstore" +) + +const AutoNATProto = "/autonat/1.0.0" + +func newDialMessage(pi pstore.PeerInfo) *pb.Message { + msg := new(pb.Message) + msg.Type = pb.Message_DIAL.Enum() + msg.Dial = new(pb.Message_Dial) + msg.Dial.Peer = new(pb.Message_PeerInfo) + msg.Dial.Peer.Id = []byte(pi.ID) + msg.Dial.Peer.Addrs = make([][]byte, len(pi.Addrs)) + for i, addr := range pi.Addrs { + msg.Dial.Peer.Addrs[i] = addr.Bytes() + } + + return msg +} From 76d49e17f1aed6298609f71bb0af2d8e5f02c71b Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 09:45:30 +0300 Subject: [PATCH 003/132] add E_BAD_REQUEST to protobuf --- p2p/host/autonat/pb/autonat.pb.go | 9 ++++++--- p2p/host/autonat/pb/autonat.proto | 3 ++- 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/p2p/host/autonat/pb/autonat.pb.go b/p2p/host/autonat/pb/autonat.pb.go index 79a09913b8..d1c981c01c 100644 --- a/p2p/host/autonat/pb/autonat.pb.go +++ b/p2p/host/autonat/pb/autonat.pb.go @@ -61,20 +61,23 @@ const ( Message_OK Message_ResponseStatus = 0 Message_E_DIAL_ERROR Message_ResponseStatus = 100 Message_E_DIAL_REFUSED Message_ResponseStatus = 101 - Message_E_INTERNAL_ERROR Message_ResponseStatus = 200 + Message_E_BAD_REQUEST Message_ResponseStatus = 200 + Message_E_INTERNAL_ERROR Message_ResponseStatus = 300 ) var Message_ResponseStatus_name = map[int32]string{ 0: "OK", 100: "E_DIAL_ERROR", 101: "E_DIAL_REFUSED", - 200: "E_INTERNAL_ERROR", + 200: "E_BAD_REQUEST", + 300: "E_INTERNAL_ERROR", } var Message_ResponseStatus_value = map[string]int32{ "OK": 0, "E_DIAL_ERROR": 100, "E_DIAL_REFUSED": 101, - "E_INTERNAL_ERROR": 200, + "E_BAD_REQUEST": 200, + "E_INTERNAL_ERROR": 300, } func (x Message_ResponseStatus) Enum() *Message_ResponseStatus { diff --git a/p2p/host/autonat/pb/autonat.proto b/p2p/host/autonat/pb/autonat.proto index 53999193c5..7107e1c07f 100644 --- a/p2p/host/autonat/pb/autonat.proto +++ b/p2p/host/autonat/pb/autonat.proto @@ -10,7 +10,8 @@ message Message { OK = 0; E_DIAL_ERROR = 100; E_DIAL_REFUSED = 101; - E_INTERNAL_ERROR = 200; + E_BAD_REQUEST = 200; + E_INTERNAL_ERROR = 300; } message PeerInfo { From 6d61b523ff8152e64b950f77c541e6da6bc5d332 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 09:49:02 +0300 Subject: [PATCH 004/132] service implementation --- p2p/host/autonat/proto.go | 18 ++++ p2p/host/autonat/svc.go | 175 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 193 insertions(+) create mode 100644 p2p/host/autonat/svc.go diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index 142469ce65..7d28d4bdb6 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -3,11 +3,15 @@ package autonat import ( pb "github.com/libp2p/go-libp2p-autonat/pb" + logging "github.com/ipfs/go-log" pstore "github.com/libp2p/go-libp2p-peerstore" + ma "github.com/multiformats/go-multiaddr" ) const AutoNATProto = "/autonat/1.0.0" +var log = logging.Logger("autonat") + func newDialMessage(pi pstore.PeerInfo) *pb.Message { msg := new(pb.Message) msg.Type = pb.Message_DIAL.Enum() @@ -21,3 +25,17 @@ func newDialMessage(pi pstore.PeerInfo) *pb.Message { return msg } + +func newDialResponseOK(addr ma.Multiaddr) *pb.Message_DialResponse { + dr := new(pb.Message_DialResponse) + dr.Status = pb.Message_OK.Enum() + dr.Addr = addr.Bytes() + return dr +} + +func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Message_DialResponse { + dr := new(pb.Message_DialResponse) + dr.Status = status.Enum() + dr.StatusText = &text + return dr +} diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go new file mode 100644 index 0000000000..863f97cd90 --- /dev/null +++ b/p2p/host/autonat/svc.go @@ -0,0 +1,175 @@ +package autonat + +import ( + "context" + "sync" + "time" + + pb "github.com/libp2p/go-libp2p-autonat/pb" + + ggio "github.com/gogo/protobuf/io" + libp2p "github.com/libp2p/go-libp2p" + host "github.com/libp2p/go-libp2p-host" + inet "github.com/libp2p/go-libp2p-net" + peer "github.com/libp2p/go-libp2p-peer" + pstore "github.com/libp2p/go-libp2p-peerstore" + ma "github.com/multiformats/go-multiaddr" +) + +const P_CIRCUIT = 290 + +type AutoNATService struct { + ctx context.Context + dialer host.Host + peers map[peer.ID]struct{} + mx sync.Mutex +} + +func NewAutoNATService(ctx context.Context, h host.Host) (*AutoNATService, error) { + dialer, err := libp2p.New(ctx) + if err != nil { + return nil, err + } + + as := &AutoNATService{ + ctx: ctx, + dialer: dialer, + peers: make(map[peer.ID]struct{}), + } + h.SetStreamHandler(AutoNATProto, as.handleStream) + + go as.resetPeers() + + return as, nil +} + +func (as *AutoNATService) handleStream(s inet.Stream) { + defer s.Close() + + pid := s.Conn().RemotePeer() + log.Debugf("New stream from %s", pid.Pretty()) + + r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) + w := ggio.NewDelimitedWriter(s) + + var req pb.Message + var res pb.Message + + err := r.ReadMsg(&req) + if err != nil { + s.Reset() + return + } + + t := req.GetType() + if t != pb.Message_DIAL { + log.Debugf("Unexpected message from: %s", t.String()) + s.Reset() + return + } + + dr := as.handleDial(pid, req.GetDial().GetPeer()) + res.Type = pb.Message_DIAL_RESPONSE.Enum() + res.DialResponse = dr + + err = w.WriteMsg(&res) + if err != nil { + log.Debugf("Error writing response: %s", err.Error()) + s.Reset() + return + } +} + +func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { + if mpi == nil { + return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") + } + + mpid := mpi.GetId() + if mpid != nil { + mp, err := peer.IDFromBytes(mpid) + if err != nil { + return newDialResponseError(pb.Message_E_BAD_REQUEST, "bad peer id") + } + + if mp != p { + return newDialResponseError(pb.Message_E_BAD_REQUEST, "peer id mismatch") + } + } + + addrs := make([]ma.Multiaddr, 0) + for _, maddr := range mpi.GetAddrs() { + addr, err := ma.NewMultiaddrBytes(maddr) + if err != nil { + log.Debugf("Error parsing multiaddr: %s", err.Error()) + continue + } + + // skip relay addresses + _, err = addr.ValueForProtocol(P_CIRCUIT) + if err == nil { + continue + } + + addrs = append(addrs, addr) + } + + if len(addrs) == 0 { + return newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses") + } + + return as.doDial(pstore.PeerInfo{ID: p, Addrs: addrs}) +} + +func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { + // rate limit check + as.mx.Lock() + _, ok := as.peers[pi.ID] + if ok { + as.mx.Unlock() + return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") + } + as.peers[pi.ID] = struct{}{} + as.mx.Unlock() + + ctx, cancel := context.WithTimeout(as.ctx, 42*time.Second) + defer cancel() + + err := as.dialer.Connect(ctx, pi) + if err != nil { + log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) + // wait for the context to timeout to avoid leaking timing information + // this renders the service ineffective as a port scanner + select { + case <-ctx.Done(): + return newDialResponseError(pb.Message_E_DIAL_ERROR, "dial failed") + } + } + + conns := as.dialer.Network().ConnsToPeer(pi.ID) + if len(conns) == 0 { + log.Errorf("supposedly connected to %s, but no connection to peer", pi.ID.Pretty()) + return newDialResponseError(pb.Message_E_INTERNAL_ERROR, "internal service error") + } + + ra := conns[0].RemoteMultiaddr() + conns[0].Close() + return newDialResponseOK(ra) +} + +func (as *AutoNATService) resetPeers() { + ticker := time.NewTicker(1 * time.Minute) + defer ticker.Stop() + + for { + select { + case <-ticker.C: + as.mx.Lock() + as.peers = make(map[peer.ID]struct{}) + as.mx.Unlock() + + case <-as.ctx.Done(): + return + } + } +} From 645e280349943d4c77e937bc6b1045aea75cde5e Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 11:22:32 +0300 Subject: [PATCH 005/132] NAT autodetection --- p2p/host/autonat/autonat.go | 143 ++++++++++++++++++++++++++++++++++++ p2p/host/autonat/client.go | 9 +++ p2p/host/autonat/notify.go | 35 +++++++++ 3 files changed, 187 insertions(+) create mode 100644 p2p/host/autonat/autonat.go create mode 100644 p2p/host/autonat/notify.go diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go new file mode 100644 index 0000000000..77b9b35070 --- /dev/null +++ b/p2p/host/autonat/autonat.go @@ -0,0 +1,143 @@ +package autonat + +import ( + "context" + "errors" + "math/rand" + "sync" + "time" + + host "github.com/libp2p/go-libp2p-host" + peer "github.com/libp2p/go-libp2p-peer" + ma "github.com/multiformats/go-multiaddr" +) + +// attach to any host and auto-discovery autonat servers +// periodically query them to deal with changing NAT situation + +type NATStatus int + +const ( + NATStatusUnknown = iota + NATStatusPublic + NATStatusPrivate +) + +type AutoNAT interface { + Status() NATStatus + PublicAddr() (ma.Multiaddr, error) +} + +type AutoNATState struct { + ctx context.Context + host host.Host + peers map[peer.ID]bool + status NATStatus + addr ma.Multiaddr + mx sync.Mutex +} + +func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { + as := &AutoNATState{ + ctx: ctx, + host: h, + peers: make(map[peer.ID]bool), + status: NATStatusUnknown, + } + + go as.background() + return as +} + +func (as *AutoNATState) Status() NATStatus { + return as.status +} + +func (as *AutoNATState) PublicAddr() (ma.Multiaddr, error) { + as.mx.Lock() + defer as.mx.Unlock() + + if as.status != NATStatusPublic { + return nil, errors.New("NAT Status is not public") + } + + return as.addr, nil +} + +func (as *AutoNATState) background() { + // wait a bit for the node to come online and establish some connections + // before starting autodetection + time.Sleep(10 * time.Second) + for { + as.autodetect() + select { + case <-time.After(15 * time.Minute): + case <-as.ctx.Done(): + return + } + } +} + +func (as *AutoNATState) autodetect() { + if len(as.peers) == 0 { + log.Debugf("skipping NAT auto detection; no autonat peers") + return + } + + as.mx.Lock() + peers := make([]peer.ID, 0, len(as.peers)) + for p, c := range as.peers { + if c { + peers = append(peers, p) + } + } + + if len(peers) == 0 { + // we don't have any open connections, try any autonat peer that we know about + for p := range as.peers { + peers = append(peers, p) + } + } + + as.mx.Unlock() + + shufflePeers(peers) + + for _, p := range peers { + cli := NewAutoNATClient(as.host, p) + ctx, cancel := context.WithTimeout(as.ctx, 60*time.Second) + a, err := cli.Dial(ctx) + cancel() + + switch { + case err == nil: + log.Debugf("NAT status is public; address through %s: %s", p.Pretty(), a.String()) + as.mx.Lock() + as.addr = a + as.status = NATStatusPublic + as.mx.Unlock() + return + + case IsDialError(err): + log.Debugf("NAT status is private; dial error through %s: %s", p.Pretty(), err.Error()) + as.mx.Lock() + as.status = NATStatusPrivate + as.mx.Unlock() + return + + default: + log.Debugf("Error dialing through %s: %s", p.Pretty(), err.Error()) + } + } + + as.mx.Lock() + as.status = NATStatusUnknown + as.mx.Unlock() +} + +func shufflePeers(peers []peer.ID) { + for i := range peers { + j := rand.Intn(i + 1) + peers[i], peers[j] = peers[j], peers[i] + } +} diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 6709abcd1a..50c5426674 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -77,7 +77,16 @@ func (e AutoNATError) IsDialError() bool { return e.Status == pb.Message_E_DIAL_ERROR } +func (e AutoNATError) IsDialRefused() bool { + return e.Status == pb.Message_E_DIAL_REFUSED +} + func IsDialError(e error) bool { ae, ok := e.(AutoNATError) return ok && ae.IsDialError() } + +func IsDialRefused(e error) bool { + ae, ok := e.(AutoNATError) + return ok && ae.IsDialRefused() +} diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go new file mode 100644 index 0000000000..958f2e0a08 --- /dev/null +++ b/p2p/host/autonat/notify.go @@ -0,0 +1,35 @@ +package autonat + +import ( + inet "github.com/libp2p/go-libp2p-net" + peer "github.com/libp2p/go-libp2p-peer" + ma "github.com/multiformats/go-multiaddr" +) + +var _ inet.Notifiee = (*AutoNATState)(nil) + +func (as *AutoNATState) Listen(net inet.Network, a ma.Multiaddr) {} +func (as *AutoNATState) ListenClose(net inet.Network, a ma.Multiaddr) {} +func (as *AutoNATState) OpenedStream(net inet.Network, s inet.Stream) {} +func (as *AutoNATState) ClosedStream(net inet.Network, s inet.Stream) {} + +func (as *AutoNATState) Connected(net inet.Network, c inet.Conn) { + go func(p peer.ID) { + s, err := as.host.NewStream(as.ctx, p, AutoNATProto) + if err != nil { + return + } + s.Close() + + log.Infof("Discovered AutoNAT peer %s", p.Pretty()) + as.mx.Lock() + as.peers[p] = true + as.mx.Unlock() + }(c.RemotePeer()) +} + +func (as *AutoNATState) Disconnected(net inet.Network, c inet.Conn) { + as.mx.Lock() + delete(as.peers, c.RemotePeer()) + as.mx.Unlock() +} From a713affd39d98cb8b502fa61b8ac0ba23a4500f9 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 11:28:24 +0300 Subject: [PATCH 006/132] remove left-over design notes --- p2p/host/autonat/autonat.go | 3 --- 1 file changed, 3 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 77b9b35070..d809d0d2a3 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -12,9 +12,6 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -// attach to any host and auto-discovery autonat servers -// periodically query them to deal with changing NAT situation - type NATStatus int const ( From 7fc002407f43534a7a619b6a05cf438f4906cd21 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 12:00:17 +0300 Subject: [PATCH 007/132] don't delete autonat peers on disconnect, just mark them as disconnected --- p2p/host/autonat/notify.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 958f2e0a08..2c5f6c78bd 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -30,6 +30,6 @@ func (as *AutoNATState) Connected(net inet.Network, c inet.Conn) { func (as *AutoNATState) Disconnected(net inet.Network, c inet.Conn) { as.mx.Lock() - delete(as.peers, c.RemotePeer()) + as.peers[c.RemotePeer()] = false as.mx.Unlock() } From ae9117749d8d9b58ac750661a7344e87c95d376b Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 12:02:54 +0300 Subject: [PATCH 008/132] we only track autonat peers fix bug introduced in last commit --- p2p/host/autonat/notify.go | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 2c5f6c78bd..6a1a138370 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -30,6 +30,10 @@ func (as *AutoNATState) Connected(net inet.Network, c inet.Conn) { func (as *AutoNATState) Disconnected(net inet.Network, c inet.Conn) { as.mx.Lock() - as.peers[c.RemotePeer()] = false + p := c.RemotePeer() + _, ok := as.peers[p] + if ok { + as.peers[p] = false + } as.mx.Unlock() } From edf41b43f16a83024ca7daf36b630811d35dbe5e Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 13:13:19 +0300 Subject: [PATCH 009/132] fix autonat peer tracking connection state can be determined through the network interface on demand --- p2p/host/autonat/autonat.go | 8 ++++---- p2p/host/autonat/notify.go | 12 ++---------- 2 files changed, 6 insertions(+), 14 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index d809d0d2a3..5dabd31b23 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -28,7 +28,7 @@ type AutoNAT interface { type AutoNATState struct { ctx context.Context host host.Host - peers map[peer.ID]bool + peers map[peer.ID]struct{} status NATStatus addr ma.Multiaddr mx sync.Mutex @@ -38,7 +38,7 @@ func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { as := &AutoNATState{ ctx: ctx, host: h, - peers: make(map[peer.ID]bool), + peers: make(map[peer.ID]struct{}), status: NATStatusUnknown, } @@ -83,8 +83,8 @@ func (as *AutoNATState) autodetect() { as.mx.Lock() peers := make([]peer.ID, 0, len(as.peers)) - for p, c := range as.peers { - if c { + for p := range as.peers { + if len(as.host.Network().ConnsToPeer(p)) > 0 { peers = append(peers, p) } } diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 6a1a138370..2c68e8ea6e 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -23,17 +23,9 @@ func (as *AutoNATState) Connected(net inet.Network, c inet.Conn) { log.Infof("Discovered AutoNAT peer %s", p.Pretty()) as.mx.Lock() - as.peers[p] = true + as.peers[p] = struct{}{} as.mx.Unlock() }(c.RemotePeer()) } -func (as *AutoNATState) Disconnected(net inet.Network, c inet.Conn) { - as.mx.Lock() - p := c.RemotePeer() - _, ok := as.peers[p] - if ok { - as.peers[p] = false - } - as.mx.Unlock() -} +func (as *AutoNATState) Disconnected(net inet.Network, c inet.Conn) {} From 82a7aa9c0fc30e3461ef531ab302e995eaaff9ec Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 13:24:16 +0300 Subject: [PATCH 010/132] add TODO in service about skipping private network addresses --- p2p/host/autonat/svc.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 863f97cd90..e2aa252a88 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -111,6 +111,8 @@ func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Me continue } + // TODO we probably also want to skip all addresses that are not IANA public routable + addrs = append(addrs, addr) } From bd18d4edd9cf3390e4c21155d22dd6668fc87eb4 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 15:39:24 +0300 Subject: [PATCH 011/132] add network notifee --- p2p/host/autonat/autonat.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 5dabd31b23..6f3ecd38f1 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -42,7 +42,9 @@ func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { status: NATStatusUnknown, } + h.Network().Notify(as) go as.background() + return as } From e9f8bf996a91407f2db2167ab08607be0ed02b74 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 17:47:53 +0300 Subject: [PATCH 012/132] don't try to dial private network addresses addresses service TODO --- p2p/host/autonat/addr.go | 62 ++++++++++++++++++++++++++++++++++++++++ p2p/host/autonat/svc.go | 5 +++- 2 files changed, 66 insertions(+), 1 deletion(-) create mode 100644 p2p/host/autonat/addr.go diff --git a/p2p/host/autonat/addr.go b/p2p/host/autonat/addr.go new file mode 100644 index 0000000000..0eecb4f084 --- /dev/null +++ b/p2p/host/autonat/addr.go @@ -0,0 +1,62 @@ +package autonat + +import ( + "net" + + ma "github.com/multiformats/go-multiaddr" +) + +var private4, private6 []*net.IPNet +var privateCIDR4 = []string{ + "10.0.0.0/8", + "172.16.0.0/12", + "192.168.0.0/16", + "100.64.0.0/10", + "169.254.0.0/16", +} +var privateCIDR6 = []string{ + "fc00::/7", + "fe80::/10", +} + +func init() { + private4 = parsePrivateCIDR(privateCIDR4) + private6 = parsePrivateCIDR(privateCIDR6) +} + +func parsePrivateCIDR(cidrs []string) []*net.IPNet { + ipnets := make([]*net.IPNet, len(cidrs)) + for i, cidr := range cidrs { + _, ipnet, err := net.ParseCIDR(cidr) + if err != nil { + panic(err) + } + ipnets[i] = ipnet + } + return ipnets +} + +func isPublicAddr(a ma.Multiaddr) bool { + ip, err := a.ValueForProtocol(ma.P_IP4) + if err == nil { + return !inAddrRange(ip, private4) + } + + ip, err = a.ValueForProtocol(ma.P_IP6) + if err == nil { + return !inAddrRange(ip, private6) + } + + return false +} + +func inAddrRange(s string, ipnets []*net.IPNet) bool { + ip := net.ParseIP(s) + for _, ipnet := range ipnets { + if ipnet.Contains(ip) { + return true + } + } + + return false +} diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index e2aa252a88..73cff7699a 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -111,7 +111,10 @@ func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Me continue } - // TODO we probably also want to skip all addresses that are not IANA public routable + // skip private network (unroutable) addresses + if !isPublicAddr(addr) { + continue + } addrs = append(addrs, addr) } From 8af7aacd7a75c34e88b9a66176bc69982ee85b72 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 6 May 2018 18:33:21 +0300 Subject: [PATCH 013/132] add localhost to private addr ranges --- p2p/host/autonat/addr.go | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/addr.go b/p2p/host/autonat/addr.go index 0eecb4f084..4e078e3765 100644 --- a/p2p/host/autonat/addr.go +++ b/p2p/host/autonat/addr.go @@ -8,14 +8,22 @@ import ( var private4, private6 []*net.IPNet var privateCIDR4 = []string{ + // localhost + "127.0.0.0/8", + // private networks "10.0.0.0/8", + "100.64.0.0/10", "172.16.0.0/12", "192.168.0.0/16", - "100.64.0.0/10", + // link local "169.254.0.0/16", } var privateCIDR6 = []string{ + // localhost + "::1/128", + // ULA reserved "fc00::/7", + // link local "fe80::/10", } From ea2e2875722727b2f13a53a71369c0d2b1c98354 Mon Sep 17 00:00:00 2001 From: vyzo Date: Mon, 7 May 2018 12:03:21 +0300 Subject: [PATCH 014/132] no need to select; it's a one shot sync --- p2p/host/autonat/svc.go | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 73cff7699a..31520983ae 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -145,10 +145,8 @@ func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) // wait for the context to timeout to avoid leaking timing information // this renders the service ineffective as a port scanner - select { - case <-ctx.Done(): - return newDialResponseError(pb.Message_E_DIAL_ERROR, "dial failed") - } + <-ctx.Done() + return newDialResponseError(pb.Message_E_DIAL_ERROR, "dial failed") } conns := as.dialer.Network().ConnsToPeer(pi.ID) From 1c0355d3e87993c8a3c9773833d70748d2c0f177 Mon Sep 17 00:00:00 2001 From: vyzo Date: Mon, 7 May 2018 12:08:13 +0300 Subject: [PATCH 015/132] typed NATStatus constants --- p2p/host/autonat/autonat.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 6f3ecd38f1..4c0212cb24 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -15,7 +15,7 @@ import ( type NATStatus int const ( - NATStatusUnknown = iota + NATStatusUnknown NATStatus = iota NATStatusPublic NATStatusPrivate ) From da3f7b55271a15d3725a926532fe6d2e6ea2e2fc Mon Sep 17 00:00:00 2001 From: vyzo Date: Mon, 7 May 2018 12:25:35 +0300 Subject: [PATCH 016/132] bump initial autodiscovery delay to 15s --- p2p/host/autonat/autonat.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 4c0212cb24..79b0c89ab8 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -66,7 +66,7 @@ func (as *AutoNATState) PublicAddr() (ma.Multiaddr, error) { func (as *AutoNATState) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection - time.Sleep(10 * time.Second) + time.Sleep(15 * time.Second) for { as.autodetect() select { From 2584bc51ffaec27e77a6f00971030dc7800a7660 Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 8 May 2018 16:11:33 +0300 Subject: [PATCH 017/132] AutoNATState is AmbientAutoNAT --- p2p/host/autonat/autonat.go | 12 ++++++------ p2p/host/autonat/notify.go | 14 +++++++------- 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 79b0c89ab8..cad8a8d3f9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -25,7 +25,7 @@ type AutoNAT interface { PublicAddr() (ma.Multiaddr, error) } -type AutoNATState struct { +type AmbientAutoNAT struct { ctx context.Context host host.Host peers map[peer.ID]struct{} @@ -35,7 +35,7 @@ type AutoNATState struct { } func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { - as := &AutoNATState{ + as := &AmbientAutoNAT{ ctx: ctx, host: h, peers: make(map[peer.ID]struct{}), @@ -48,11 +48,11 @@ func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { return as } -func (as *AutoNATState) Status() NATStatus { +func (as *AmbientAutoNAT) Status() NATStatus { return as.status } -func (as *AutoNATState) PublicAddr() (ma.Multiaddr, error) { +func (as *AmbientAutoNAT) PublicAddr() (ma.Multiaddr, error) { as.mx.Lock() defer as.mx.Unlock() @@ -63,7 +63,7 @@ func (as *AutoNATState) PublicAddr() (ma.Multiaddr, error) { return as.addr, nil } -func (as *AutoNATState) background() { +func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection time.Sleep(15 * time.Second) @@ -77,7 +77,7 @@ func (as *AutoNATState) background() { } } -func (as *AutoNATState) autodetect() { +func (as *AmbientAutoNAT) autodetect() { if len(as.peers) == 0 { log.Debugf("skipping NAT auto detection; no autonat peers") return diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 2c68e8ea6e..4e2bc9d984 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -6,14 +6,14 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -var _ inet.Notifiee = (*AutoNATState)(nil) +var _ inet.Notifiee = (*AmbientAutoNAT)(nil) -func (as *AutoNATState) Listen(net inet.Network, a ma.Multiaddr) {} -func (as *AutoNATState) ListenClose(net inet.Network, a ma.Multiaddr) {} -func (as *AutoNATState) OpenedStream(net inet.Network, s inet.Stream) {} -func (as *AutoNATState) ClosedStream(net inet.Network, s inet.Stream) {} +func (as *AmbientAutoNAT) Listen(net inet.Network, a ma.Multiaddr) {} +func (as *AmbientAutoNAT) ListenClose(net inet.Network, a ma.Multiaddr) {} +func (as *AmbientAutoNAT) OpenedStream(net inet.Network, s inet.Stream) {} +func (as *AmbientAutoNAT) ClosedStream(net inet.Network, s inet.Stream) {} -func (as *AutoNATState) Connected(net inet.Network, c inet.Conn) { +func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { go func(p peer.ID) { s, err := as.host.NewStream(as.ctx, p, AutoNATProto) if err != nil { @@ -28,4 +28,4 @@ func (as *AutoNATState) Connected(net inet.Network, c inet.Conn) { }(c.RemotePeer()) } -func (as *AutoNATState) Disconnected(net inet.Network, c inet.Conn) {} +func (as *AmbientAutoNAT) Disconnected(net inet.Network, c inet.Conn) {} From 003e697e6ab2088171537dc045656e652a57ca6f Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 8 May 2018 16:17:05 +0300 Subject: [PATCH 018/132] variables for background delays --- p2p/host/autonat/autonat.go | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index cad8a8d3f9..54b2b56527 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -20,6 +20,11 @@ const ( NATStatusPrivate ) +var ( + AutoNATBootDelay = 15 * time.Second + AutoNATRefreshInterval = 15 * time.Minute +) + type AutoNAT interface { Status() NATStatus PublicAddr() (ma.Multiaddr, error) @@ -66,11 +71,11 @@ func (as *AmbientAutoNAT) PublicAddr() (ma.Multiaddr, error) { func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection - time.Sleep(15 * time.Second) + time.Sleep(AutoNATBootDelay) for { as.autodetect() select { - case <-time.After(15 * time.Minute): + case <-time.After(AutoNATRefreshInterval): case <-as.ctx.Done(): return } From f36100a1f9e6cada2da04cc0dd455a1b404b8530 Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 9 May 2018 11:37:49 +0300 Subject: [PATCH 019/132] named magic number incantations --- p2p/host/autonat/autonat.go | 4 +++- p2p/host/autonat/svc.go | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 54b2b56527..30255328a7 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -23,6 +23,8 @@ const ( var ( AutoNATBootDelay = 15 * time.Second AutoNATRefreshInterval = 15 * time.Minute + + AutoNATRequestTimeout = 60 * time.Second ) type AutoNAT interface { @@ -109,7 +111,7 @@ func (as *AmbientAutoNAT) autodetect() { for _, p := range peers { cli := NewAutoNATClient(as.host, p) - ctx, cancel := context.WithTimeout(as.ctx, 60*time.Second) + ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) a, err := cli.Dial(ctx) cancel() diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 31520983ae..26d08f1ff9 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -18,6 +18,8 @@ import ( const P_CIRCUIT = 290 +var AutoNATServiceResetInterval = 1 * time.Minute + type AutoNATService struct { ctx context.Context dialer host.Host @@ -161,7 +163,7 @@ func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { } func (as *AutoNATService) resetPeers() { - ticker := time.NewTicker(1 * time.Minute) + ticker := time.NewTicker(AutoNATServiceResetInterval) defer ticker.Stop() for { From 7f690dcc6888b504b249d2b75b3273046b26aeda Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 9 May 2018 11:47:16 +0300 Subject: [PATCH 020/132] refactor getPeers for locked scope --- p2p/host/autonat/autonat.go | 50 ++++++++++++++++++++++--------------- 1 file changed, 30 insertions(+), 20 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 30255328a7..765996b1d5 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -85,30 +85,13 @@ func (as *AmbientAutoNAT) background() { } func (as *AmbientAutoNAT) autodetect() { - if len(as.peers) == 0 { - log.Debugf("skipping NAT auto detection; no autonat peers") - return - } - - as.mx.Lock() - peers := make([]peer.ID, 0, len(as.peers)) - for p := range as.peers { - if len(as.host.Network().ConnsToPeer(p)) > 0 { - peers = append(peers, p) - } - } + peers := as.getPeers() if len(peers) == 0 { - // we don't have any open connections, try any autonat peer that we know about - for p := range as.peers { - peers = append(peers, p) - } + log.Debugf("skipping NAT auto detection; no autonat peers") + return } - as.mx.Unlock() - - shufflePeers(peers) - for _, p := range peers { cli := NewAutoNATClient(as.host, p) ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) @@ -141,6 +124,33 @@ func (as *AmbientAutoNAT) autodetect() { as.mx.Unlock() } +func (as *AmbientAutoNAT) getPeers() []peer.ID { + as.mx.Lock() + defer as.mx.Unlock() + + if len(as.peers) == 0 { + return nil + } + + peers := make([]peer.ID, 0, len(as.peers)) + for p := range as.peers { + if len(as.host.Network().ConnsToPeer(p)) > 0 { + peers = append(peers, p) + } + } + + if len(peers) == 0 { + // we don't have any open connections, try any autonat peer that we know about + for p := range as.peers { + peers = append(peers, p) + } + } + + shufflePeers(peers) + + return peers +} + func shufflePeers(peers []peer.ID) { for i := range peers { j := rand.Intn(i + 1) From bdb57814505f657780d82ffd5d6db3ffab617145 Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 9 May 2018 11:53:15 +0300 Subject: [PATCH 021/132] don't throw away read errors; log them. --- p2p/host/autonat/svc.go | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 26d08f1ff9..068b2723b5 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -59,13 +59,14 @@ func (as *AutoNATService) handleStream(s inet.Stream) { err := r.ReadMsg(&req) if err != nil { + log.Debugf("Error reading message from %s: %s", pid.Pretty(), err.Error()) s.Reset() return } t := req.GetType() if t != pb.Message_DIAL { - log.Debugf("Unexpected message from: %s", t.String()) + log.Debugf("Unexpected message from %s: %s (%d)", pid.Pretty(), t.String(), t) s.Reset() return } @@ -76,7 +77,7 @@ func (as *AutoNATService) handleStream(s inet.Stream) { err = w.WriteMsg(&res) if err != nil { - log.Debugf("Error writing response: %s", err.Error()) + log.Debugf("Error writing response to %s: %s", pid.Pretty(), err.Error()) s.Reset() return } From 9c5851a80616b2c46ffcb887caa30a713f8e867b Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 9 May 2018 12:16:16 +0300 Subject: [PATCH 022/132] simplify autonat client itnerface --- p2p/host/autonat/autonat.go | 5 +++-- p2p/host/autonat/client.go | 11 +++++------ 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 765996b1d5..3a58e2b9fd 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -92,10 +92,11 @@ func (as *AmbientAutoNAT) autodetect() { return } + cli := NewAutoNATClient(as.host) + for _, p := range peers { - cli := NewAutoNATClient(as.host, p) ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) - a, err := cli.Dial(ctx) + a, err := cli.Dial(ctx, p) cancel() switch { diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 50c5426674..f996ff3781 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -15,7 +15,7 @@ import ( ) type AutoNATClient interface { - Dial(ctx context.Context) (ma.Multiaddr, error) + Dial(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } type AutoNATError struct { @@ -23,17 +23,16 @@ type AutoNATError struct { Text string } -func NewAutoNATClient(h host.Host, p peer.ID) AutoNATClient { - return &client{h: h, p: p} +func NewAutoNATClient(h host.Host) AutoNATClient { + return &client{h: h} } type client struct { h host.Host - p peer.ID } -func (c *client) Dial(ctx context.Context) (ma.Multiaddr, error) { - s, err := c.h.NewStream(ctx, c.p, AutoNATProto) +func (c *client) Dial(ctx context.Context, p peer.ID) (ma.Multiaddr, error) { + s, err := c.h.NewStream(ctx, p, AutoNATProto) if err != nil { return nil, err } From 55cd73a0d861cade43ec239e3732b2c2334d1502 Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 11 May 2018 08:13:53 +0300 Subject: [PATCH 023/132] mutex hat --- p2p/host/autonat/autonat.go | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 3a58e2b9fd..8d96fd1ee9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -33,12 +33,13 @@ type AutoNAT interface { } type AmbientAutoNAT struct { - ctx context.Context - host host.Host + ctx context.Context + host host.Host + + mx sync.Mutex peers map[peer.ID]struct{} status NATStatus addr ma.Multiaddr - mx sync.Mutex } func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { From 889081eeba86962f7b1dbcb968d582690c8c525b Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 11 May 2018 09:40:36 +0300 Subject: [PATCH 024/132] docstrings and another mutex hat. --- p2p/host/autonat/autonat.go | 9 +++++++++ p2p/host/autonat/client.go | 6 ++++++ p2p/host/autonat/svc.go | 7 +++++-- 3 files changed, 20 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 8d96fd1ee9..972cae2126 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -15,8 +15,11 @@ import ( type NATStatus int const ( + // NAT status is unknown NATStatusUnknown NATStatus = iota + // NAT status is publicly dialable NATStatusPublic + // NAT status is private network NATStatusPrivate ) @@ -27,11 +30,16 @@ var ( AutoNATRequestTimeout = 60 * time.Second ) +// AutoNAT is the interface for ambient NAT autodiscovery type AutoNAT interface { + // Status returns the current NAT status Status() NATStatus + // PublicAddr returns the public dial address when NAT status is public and an + // error otherwise PublicAddr() (ma.Multiaddr, error) } +// AmbientAutoNAT is the implementation of ambient NAT autodiscovery type AmbientAutoNAT struct { ctx context.Context host host.Host @@ -42,6 +50,7 @@ type AmbientAutoNAT struct { addr ma.Multiaddr } +// NewAutoNAT creates a new ambient NAT auto-discovery instance func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { as := &AmbientAutoNAT{ ctx: ctx, diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index f996ff3781..812ce47628 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -14,15 +14,19 @@ import ( ma "github.com/multiformats/go-multiaddr" ) +// AutoNATClient is a stateless client interface to AutoNAT peers type AutoNATClient interface { + // Dial requests from a peer providing AutoNAT services to test dial back Dial(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } +// AutoNATError is the class of errors signalled by AutoNAT services type AutoNATError struct { Status pb.Message_ResponseStatus Text string } +// NewAutoNATClient creates a fresh instance of an AutoNATClient func NewAutoNATClient(h host.Host) AutoNATClient { return &client{h: h} } @@ -80,11 +84,13 @@ func (e AutoNATError) IsDialRefused() bool { return e.Status == pb.Message_E_DIAL_REFUSED } +// IsDialError returns true if the AutoNAT peer signalled an error dialing back func IsDialError(e error) bool { ae, ok := e.(AutoNATError) return ok && ae.IsDialError() } +// IsDialRefused returns true if the AutoNAT peer signalled refusal to dial back func IsDialRefused(e error) bool { ae, ok := e.(AutoNATError) return ok && ae.IsDialRefused() diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 068b2723b5..236f162e23 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -20,13 +20,16 @@ const P_CIRCUIT = 290 var AutoNATServiceResetInterval = 1 * time.Minute +// AutoNATService provides NAT autodetection services to other peers type AutoNATService struct { ctx context.Context dialer host.Host - peers map[peer.ID]struct{} - mx sync.Mutex + + mx sync.Mutex + peers map[peer.ID]struct{} } +// NewAutoNATService creates a new AutoNATService instance attached to a host func NewAutoNATService(ctx context.Context, h host.Host) (*AutoNATService, error) { dialer, err := libp2p.New(ctx) if err != nil { From 7ea67c6344a4a25ca4dc6a3aeed8b510ef1c3866 Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 11 May 2018 09:46:16 +0300 Subject: [PATCH 025/132] improve docstring for NewAutoNAT --- p2p/host/autonat/autonat.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 972cae2126..c059659b11 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -50,7 +50,7 @@ type AmbientAutoNAT struct { addr ma.Multiaddr } -// NewAutoNAT creates a new ambient NAT auto-discovery instance +// NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { as := &AmbientAutoNAT{ ctx: ctx, From 81477e5d5316c7f9bab8b106d141013af886b0cf Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 11 May 2018 15:50:50 +0300 Subject: [PATCH 026/132] improve NATStatusUknown docstring --- p2p/host/autonat/autonat.go | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index c059659b11..bb6561a71d 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -12,10 +12,13 @@ import ( ma "github.com/multiformats/go-multiaddr" ) +// NATStatus is the state of NAT as detected by the ambient service. type NATStatus int const ( - // NAT status is unknown + // NAT status is unknown; this means that the ambient serice has not been + // able to decide the presence of NAT in the most recent attempt to test + // dial through known autonat peers. initial state. NATStatusUnknown NATStatus = iota // NAT status is publicly dialable NATStatusPublic From ce8aa438321571468c296511fbf06b12eede09ae Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 12 May 2018 08:20:04 +0300 Subject: [PATCH 027/132] fix typo --- p2p/host/autonat/autonat.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index bb6561a71d..bdf1e8d8ba 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -16,7 +16,7 @@ import ( type NATStatus int const ( - // NAT status is unknown; this means that the ambient serice has not been + // NAT status is unknown; this means that the ambient service has not been // able to decide the presence of NAT in the most recent attempt to test // dial through known autonat peers. initial state. NATStatusUnknown NATStatus = iota From 30134cf5103e36112b02dcfe4382fd899f07ab91 Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 7 Sep 2018 13:37:10 +0300 Subject: [PATCH 028/132] regenerate protobuf --- p2p/host/autonat/pb/autonat.pb.go | 1018 ++++++++++++++++++++++++++++- 1 file changed, 994 insertions(+), 24 deletions(-) diff --git a/p2p/host/autonat/pb/autonat.pb.go b/p2p/host/autonat/pb/autonat.pb.go index d1c981c01c..3f2db2e1a1 100644 --- a/p2p/host/autonat/pb/autonat.pb.go +++ b/p2p/host/autonat/pb/autonat.pb.go @@ -1,27 +1,25 @@ -// Code generated by protoc-gen-gogo. +// Code generated by protoc-gen-gogo. DO NOT EDIT. // source: autonat.proto -// DO NOT EDIT! -/* -Package autonat_pb is a generated protocol buffer package. - -It is generated from these files: - autonat.proto - -It has these top-level messages: - Message -*/ package autonat_pb import proto "github.com/gogo/protobuf/proto" import fmt "fmt" import math "math" +import io "io" + // Reference imports to suppress errors if they are not otherwise used. var _ = proto.Marshal var _ = fmt.Errorf var _ = math.Inf +// This is a compile-time assertion to ensure that this generated file +// is compatible with the proto package it is being compiled against. +// A compilation error at this line likely means your copy of the +// proto package needs to be updated. +const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package + type Message_MessageType int32 const ( @@ -54,6 +52,9 @@ func (x *Message_MessageType) UnmarshalJSON(data []byte) error { *x = Message_MessageType(value) return nil } +func (Message_MessageType) EnumDescriptor() ([]byte, []int) { + return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 0} +} type Message_ResponseStatus int32 @@ -96,17 +97,51 @@ func (x *Message_ResponseStatus) UnmarshalJSON(data []byte) error { *x = Message_ResponseStatus(value) return nil } +func (Message_ResponseStatus) EnumDescriptor() ([]byte, []int) { + return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 1} +} type Message struct { - Type *Message_MessageType `protobuf:"varint,1,opt,name=type,enum=autonat.pb.Message_MessageType" json:"type,omitempty"` - Dial *Message_Dial `protobuf:"bytes,2,opt,name=dial" json:"dial,omitempty"` - DialResponse *Message_DialResponse `protobuf:"bytes,3,opt,name=dialResponse" json:"dialResponse,omitempty"` - XXX_unrecognized []byte `json:"-"` + Type *Message_MessageType `protobuf:"varint,1,opt,name=type,enum=autonat.pb.Message_MessageType" json:"type,omitempty"` + Dial *Message_Dial `protobuf:"bytes,2,opt,name=dial" json:"dial,omitempty"` + DialResponse *Message_DialResponse `protobuf:"bytes,3,opt,name=dialResponse" json:"dialResponse,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` } func (m *Message) Reset() { *m = Message{} } func (m *Message) String() string { return proto.CompactTextString(m) } func (*Message) ProtoMessage() {} +func (*Message) Descriptor() ([]byte, []int) { + return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0} +} +func (m *Message) XXX_Unmarshal(b []byte) error { + return m.Unmarshal(b) +} +func (m *Message) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + if deterministic { + return xxx_messageInfo_Message.Marshal(b, m, deterministic) + } else { + b = b[:cap(b)] + n, err := m.MarshalTo(b) + if err != nil { + return nil, err + } + return b[:n], nil + } +} +func (dst *Message) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message.Merge(dst, src) +} +func (m *Message) XXX_Size() int { + return m.Size() +} +func (m *Message) XXX_DiscardUnknown() { + xxx_messageInfo_Message.DiscardUnknown(m) +} + +var xxx_messageInfo_Message proto.InternalMessageInfo func (m *Message) GetType() Message_MessageType { if m != nil && m.Type != nil { @@ -130,14 +165,45 @@ func (m *Message) GetDialResponse() *Message_DialResponse { } type Message_PeerInfo struct { - Id []byte `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"` - Addrs [][]byte `protobuf:"bytes,2,rep,name=addrs" json:"addrs,omitempty"` - XXX_unrecognized []byte `json:"-"` + Id []byte `protobuf:"bytes,1,opt,name=id" json:"id,omitempty"` + Addrs [][]byte `protobuf:"bytes,2,rep,name=addrs" json:"addrs,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` } func (m *Message_PeerInfo) Reset() { *m = Message_PeerInfo{} } func (m *Message_PeerInfo) String() string { return proto.CompactTextString(m) } func (*Message_PeerInfo) ProtoMessage() {} +func (*Message_PeerInfo) Descriptor() ([]byte, []int) { + return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 0} +} +func (m *Message_PeerInfo) XXX_Unmarshal(b []byte) error { + return m.Unmarshal(b) +} +func (m *Message_PeerInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + if deterministic { + return xxx_messageInfo_Message_PeerInfo.Marshal(b, m, deterministic) + } else { + b = b[:cap(b)] + n, err := m.MarshalTo(b) + if err != nil { + return nil, err + } + return b[:n], nil + } +} +func (dst *Message_PeerInfo) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message_PeerInfo.Merge(dst, src) +} +func (m *Message_PeerInfo) XXX_Size() int { + return m.Size() +} +func (m *Message_PeerInfo) XXX_DiscardUnknown() { + xxx_messageInfo_Message_PeerInfo.DiscardUnknown(m) +} + +var xxx_messageInfo_Message_PeerInfo proto.InternalMessageInfo func (m *Message_PeerInfo) GetId() []byte { if m != nil { @@ -154,13 +220,44 @@ func (m *Message_PeerInfo) GetAddrs() [][]byte { } type Message_Dial struct { - Peer *Message_PeerInfo `protobuf:"bytes,1,opt,name=peer" json:"peer,omitempty"` - XXX_unrecognized []byte `json:"-"` + Peer *Message_PeerInfo `protobuf:"bytes,1,opt,name=peer" json:"peer,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` } func (m *Message_Dial) Reset() { *m = Message_Dial{} } func (m *Message_Dial) String() string { return proto.CompactTextString(m) } func (*Message_Dial) ProtoMessage() {} +func (*Message_Dial) Descriptor() ([]byte, []int) { + return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 1} +} +func (m *Message_Dial) XXX_Unmarshal(b []byte) error { + return m.Unmarshal(b) +} +func (m *Message_Dial) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + if deterministic { + return xxx_messageInfo_Message_Dial.Marshal(b, m, deterministic) + } else { + b = b[:cap(b)] + n, err := m.MarshalTo(b) + if err != nil { + return nil, err + } + return b[:n], nil + } +} +func (dst *Message_Dial) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message_Dial.Merge(dst, src) +} +func (m *Message_Dial) XXX_Size() int { + return m.Size() +} +func (m *Message_Dial) XXX_DiscardUnknown() { + xxx_messageInfo_Message_Dial.DiscardUnknown(m) +} + +var xxx_messageInfo_Message_Dial proto.InternalMessageInfo func (m *Message_Dial) GetPeer() *Message_PeerInfo { if m != nil { @@ -170,15 +267,46 @@ func (m *Message_Dial) GetPeer() *Message_PeerInfo { } type Message_DialResponse struct { - Status *Message_ResponseStatus `protobuf:"varint,1,opt,name=status,enum=autonat.pb.Message_ResponseStatus" json:"status,omitempty"` - StatusText *string `protobuf:"bytes,2,opt,name=statusText" json:"statusText,omitempty"` - Addr []byte `protobuf:"bytes,3,opt,name=addr" json:"addr,omitempty"` - XXX_unrecognized []byte `json:"-"` + Status *Message_ResponseStatus `protobuf:"varint,1,opt,name=status,enum=autonat.pb.Message_ResponseStatus" json:"status,omitempty"` + StatusText *string `protobuf:"bytes,2,opt,name=statusText" json:"statusText,omitempty"` + Addr []byte `protobuf:"bytes,3,opt,name=addr" json:"addr,omitempty"` + XXX_NoUnkeyedLiteral struct{} `json:"-"` + XXX_unrecognized []byte `json:"-"` + XXX_sizecache int32 `json:"-"` } func (m *Message_DialResponse) Reset() { *m = Message_DialResponse{} } func (m *Message_DialResponse) String() string { return proto.CompactTextString(m) } func (*Message_DialResponse) ProtoMessage() {} +func (*Message_DialResponse) Descriptor() ([]byte, []int) { + return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 2} +} +func (m *Message_DialResponse) XXX_Unmarshal(b []byte) error { + return m.Unmarshal(b) +} +func (m *Message_DialResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { + if deterministic { + return xxx_messageInfo_Message_DialResponse.Marshal(b, m, deterministic) + } else { + b = b[:cap(b)] + n, err := m.MarshalTo(b) + if err != nil { + return nil, err + } + return b[:n], nil + } +} +func (dst *Message_DialResponse) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message_DialResponse.Merge(dst, src) +} +func (m *Message_DialResponse) XXX_Size() int { + return m.Size() +} +func (m *Message_DialResponse) XXX_DiscardUnknown() { + xxx_messageInfo_Message_DialResponse.DiscardUnknown(m) +} + +var xxx_messageInfo_Message_DialResponse proto.InternalMessageInfo func (m *Message_DialResponse) GetStatus() Message_ResponseStatus { if m != nil && m.Status != nil { @@ -209,3 +337,845 @@ func init() { proto.RegisterEnum("autonat.pb.Message_MessageType", Message_MessageType_name, Message_MessageType_value) proto.RegisterEnum("autonat.pb.Message_ResponseStatus", Message_ResponseStatus_name, Message_ResponseStatus_value) } +func (m *Message) Marshal() (dAtA []byte, err error) { + size := m.Size() + dAtA = make([]byte, size) + n, err := m.MarshalTo(dAtA) + if err != nil { + return nil, err + } + return dAtA[:n], nil +} + +func (m *Message) MarshalTo(dAtA []byte) (int, error) { + var i int + _ = i + var l int + _ = l + if m.Type != nil { + dAtA[i] = 0x8 + i++ + i = encodeVarintAutonat(dAtA, i, uint64(*m.Type)) + } + if m.Dial != nil { + dAtA[i] = 0x12 + i++ + i = encodeVarintAutonat(dAtA, i, uint64(m.Dial.Size())) + n1, err := m.Dial.MarshalTo(dAtA[i:]) + if err != nil { + return 0, err + } + i += n1 + } + if m.DialResponse != nil { + dAtA[i] = 0x1a + i++ + i = encodeVarintAutonat(dAtA, i, uint64(m.DialResponse.Size())) + n2, err := m.DialResponse.MarshalTo(dAtA[i:]) + if err != nil { + return 0, err + } + i += n2 + } + if m.XXX_unrecognized != nil { + i += copy(dAtA[i:], m.XXX_unrecognized) + } + return i, nil +} + +func (m *Message_PeerInfo) Marshal() (dAtA []byte, err error) { + size := m.Size() + dAtA = make([]byte, size) + n, err := m.MarshalTo(dAtA) + if err != nil { + return nil, err + } + return dAtA[:n], nil +} + +func (m *Message_PeerInfo) MarshalTo(dAtA []byte) (int, error) { + var i int + _ = i + var l int + _ = l + if m.Id != nil { + dAtA[i] = 0xa + i++ + i = encodeVarintAutonat(dAtA, i, uint64(len(m.Id))) + i += copy(dAtA[i:], m.Id) + } + if len(m.Addrs) > 0 { + for _, b := range m.Addrs { + dAtA[i] = 0x12 + i++ + i = encodeVarintAutonat(dAtA, i, uint64(len(b))) + i += copy(dAtA[i:], b) + } + } + if m.XXX_unrecognized != nil { + i += copy(dAtA[i:], m.XXX_unrecognized) + } + return i, nil +} + +func (m *Message_Dial) Marshal() (dAtA []byte, err error) { + size := m.Size() + dAtA = make([]byte, size) + n, err := m.MarshalTo(dAtA) + if err != nil { + return nil, err + } + return dAtA[:n], nil +} + +func (m *Message_Dial) MarshalTo(dAtA []byte) (int, error) { + var i int + _ = i + var l int + _ = l + if m.Peer != nil { + dAtA[i] = 0xa + i++ + i = encodeVarintAutonat(dAtA, i, uint64(m.Peer.Size())) + n3, err := m.Peer.MarshalTo(dAtA[i:]) + if err != nil { + return 0, err + } + i += n3 + } + if m.XXX_unrecognized != nil { + i += copy(dAtA[i:], m.XXX_unrecognized) + } + return i, nil +} + +func (m *Message_DialResponse) Marshal() (dAtA []byte, err error) { + size := m.Size() + dAtA = make([]byte, size) + n, err := m.MarshalTo(dAtA) + if err != nil { + return nil, err + } + return dAtA[:n], nil +} + +func (m *Message_DialResponse) MarshalTo(dAtA []byte) (int, error) { + var i int + _ = i + var l int + _ = l + if m.Status != nil { + dAtA[i] = 0x8 + i++ + i = encodeVarintAutonat(dAtA, i, uint64(*m.Status)) + } + if m.StatusText != nil { + dAtA[i] = 0x12 + i++ + i = encodeVarintAutonat(dAtA, i, uint64(len(*m.StatusText))) + i += copy(dAtA[i:], *m.StatusText) + } + if m.Addr != nil { + dAtA[i] = 0x1a + i++ + i = encodeVarintAutonat(dAtA, i, uint64(len(m.Addr))) + i += copy(dAtA[i:], m.Addr) + } + if m.XXX_unrecognized != nil { + i += copy(dAtA[i:], m.XXX_unrecognized) + } + return i, nil +} + +func encodeVarintAutonat(dAtA []byte, offset int, v uint64) int { + for v >= 1<<7 { + dAtA[offset] = uint8(v&0x7f | 0x80) + v >>= 7 + offset++ + } + dAtA[offset] = uint8(v) + return offset + 1 +} +func (m *Message) Size() (n int) { + var l int + _ = l + if m.Type != nil { + n += 1 + sovAutonat(uint64(*m.Type)) + } + if m.Dial != nil { + l = m.Dial.Size() + n += 1 + l + sovAutonat(uint64(l)) + } + if m.DialResponse != nil { + l = m.DialResponse.Size() + n += 1 + l + sovAutonat(uint64(l)) + } + if m.XXX_unrecognized != nil { + n += len(m.XXX_unrecognized) + } + return n +} + +func (m *Message_PeerInfo) Size() (n int) { + var l int + _ = l + if m.Id != nil { + l = len(m.Id) + n += 1 + l + sovAutonat(uint64(l)) + } + if len(m.Addrs) > 0 { + for _, b := range m.Addrs { + l = len(b) + n += 1 + l + sovAutonat(uint64(l)) + } + } + if m.XXX_unrecognized != nil { + n += len(m.XXX_unrecognized) + } + return n +} + +func (m *Message_Dial) Size() (n int) { + var l int + _ = l + if m.Peer != nil { + l = m.Peer.Size() + n += 1 + l + sovAutonat(uint64(l)) + } + if m.XXX_unrecognized != nil { + n += len(m.XXX_unrecognized) + } + return n +} + +func (m *Message_DialResponse) Size() (n int) { + var l int + _ = l + if m.Status != nil { + n += 1 + sovAutonat(uint64(*m.Status)) + } + if m.StatusText != nil { + l = len(*m.StatusText) + n += 1 + l + sovAutonat(uint64(l)) + } + if m.Addr != nil { + l = len(m.Addr) + n += 1 + l + sovAutonat(uint64(l)) + } + if m.XXX_unrecognized != nil { + n += len(m.XXX_unrecognized) + } + return n +} + +func sovAutonat(x uint64) (n int) { + for { + n++ + x >>= 7 + if x == 0 { + break + } + } + return n +} +func sozAutonat(x uint64) (n int) { + return sovAutonat(uint64((x << 1) ^ uint64((int64(x) >> 63)))) +} +func (m *Message) Unmarshal(dAtA []byte) error { + l := len(dAtA) + iNdEx := 0 + for iNdEx < l { + preIndex := iNdEx + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + fieldNum := int32(wire >> 3) + wireType := int(wire & 0x7) + if wireType == 4 { + return fmt.Errorf("proto: Message: wiretype end group for non-group") + } + if fieldNum <= 0 { + return fmt.Errorf("proto: Message: illegal tag %d (wire type %d)", fieldNum, wire) + } + switch fieldNum { + case 1: + if wireType != 0 { + return fmt.Errorf("proto: wrong wireType = %d for field Type", wireType) + } + var v Message_MessageType + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + v |= (Message_MessageType(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + m.Type = &v + case 2: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Dial", wireType) + } + var msglen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + msglen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if msglen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + msglen + if postIndex > l { + return io.ErrUnexpectedEOF + } + if m.Dial == nil { + m.Dial = &Message_Dial{} + } + if err := m.Dial.Unmarshal(dAtA[iNdEx:postIndex]); err != nil { + return err + } + iNdEx = postIndex + case 3: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field DialResponse", wireType) + } + var msglen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + msglen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if msglen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + msglen + if postIndex > l { + return io.ErrUnexpectedEOF + } + if m.DialResponse == nil { + m.DialResponse = &Message_DialResponse{} + } + if err := m.DialResponse.Unmarshal(dAtA[iNdEx:postIndex]); err != nil { + return err + } + iNdEx = postIndex + default: + iNdEx = preIndex + skippy, err := skipAutonat(dAtA[iNdEx:]) + if err != nil { + return err + } + if skippy < 0 { + return ErrInvalidLengthAutonat + } + if (iNdEx + skippy) > l { + return io.ErrUnexpectedEOF + } + m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...) + iNdEx += skippy + } + } + + if iNdEx > l { + return io.ErrUnexpectedEOF + } + return nil +} +func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { + l := len(dAtA) + iNdEx := 0 + for iNdEx < l { + preIndex := iNdEx + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + fieldNum := int32(wire >> 3) + wireType := int(wire & 0x7) + if wireType == 4 { + return fmt.Errorf("proto: PeerInfo: wiretype end group for non-group") + } + if fieldNum <= 0 { + return fmt.Errorf("proto: PeerInfo: illegal tag %d (wire type %d)", fieldNum, wire) + } + switch fieldNum { + case 1: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Id", wireType) + } + var byteLen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + byteLen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if byteLen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + byteLen + if postIndex > l { + return io.ErrUnexpectedEOF + } + m.Id = append(m.Id[:0], dAtA[iNdEx:postIndex]...) + if m.Id == nil { + m.Id = []byte{} + } + iNdEx = postIndex + case 2: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Addrs", wireType) + } + var byteLen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + byteLen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if byteLen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + byteLen + if postIndex > l { + return io.ErrUnexpectedEOF + } + m.Addrs = append(m.Addrs, make([]byte, postIndex-iNdEx)) + copy(m.Addrs[len(m.Addrs)-1], dAtA[iNdEx:postIndex]) + iNdEx = postIndex + default: + iNdEx = preIndex + skippy, err := skipAutonat(dAtA[iNdEx:]) + if err != nil { + return err + } + if skippy < 0 { + return ErrInvalidLengthAutonat + } + if (iNdEx + skippy) > l { + return io.ErrUnexpectedEOF + } + m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...) + iNdEx += skippy + } + } + + if iNdEx > l { + return io.ErrUnexpectedEOF + } + return nil +} +func (m *Message_Dial) Unmarshal(dAtA []byte) error { + l := len(dAtA) + iNdEx := 0 + for iNdEx < l { + preIndex := iNdEx + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + fieldNum := int32(wire >> 3) + wireType := int(wire & 0x7) + if wireType == 4 { + return fmt.Errorf("proto: Dial: wiretype end group for non-group") + } + if fieldNum <= 0 { + return fmt.Errorf("proto: Dial: illegal tag %d (wire type %d)", fieldNum, wire) + } + switch fieldNum { + case 1: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Peer", wireType) + } + var msglen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + msglen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if msglen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + msglen + if postIndex > l { + return io.ErrUnexpectedEOF + } + if m.Peer == nil { + m.Peer = &Message_PeerInfo{} + } + if err := m.Peer.Unmarshal(dAtA[iNdEx:postIndex]); err != nil { + return err + } + iNdEx = postIndex + default: + iNdEx = preIndex + skippy, err := skipAutonat(dAtA[iNdEx:]) + if err != nil { + return err + } + if skippy < 0 { + return ErrInvalidLengthAutonat + } + if (iNdEx + skippy) > l { + return io.ErrUnexpectedEOF + } + m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...) + iNdEx += skippy + } + } + + if iNdEx > l { + return io.ErrUnexpectedEOF + } + return nil +} +func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { + l := len(dAtA) + iNdEx := 0 + for iNdEx < l { + preIndex := iNdEx + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + fieldNum := int32(wire >> 3) + wireType := int(wire & 0x7) + if wireType == 4 { + return fmt.Errorf("proto: DialResponse: wiretype end group for non-group") + } + if fieldNum <= 0 { + return fmt.Errorf("proto: DialResponse: illegal tag %d (wire type %d)", fieldNum, wire) + } + switch fieldNum { + case 1: + if wireType != 0 { + return fmt.Errorf("proto: wrong wireType = %d for field Status", wireType) + } + var v Message_ResponseStatus + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + v |= (Message_ResponseStatus(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + m.Status = &v + case 2: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field StatusText", wireType) + } + var stringLen uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + stringLen |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + intStringLen := int(stringLen) + if intStringLen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + intStringLen + if postIndex > l { + return io.ErrUnexpectedEOF + } + s := string(dAtA[iNdEx:postIndex]) + m.StatusText = &s + iNdEx = postIndex + case 3: + if wireType != 2 { + return fmt.Errorf("proto: wrong wireType = %d for field Addr", wireType) + } + var byteLen int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return ErrIntOverflowAutonat + } + if iNdEx >= l { + return io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + byteLen |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + if byteLen < 0 { + return ErrInvalidLengthAutonat + } + postIndex := iNdEx + byteLen + if postIndex > l { + return io.ErrUnexpectedEOF + } + m.Addr = append(m.Addr[:0], dAtA[iNdEx:postIndex]...) + if m.Addr == nil { + m.Addr = []byte{} + } + iNdEx = postIndex + default: + iNdEx = preIndex + skippy, err := skipAutonat(dAtA[iNdEx:]) + if err != nil { + return err + } + if skippy < 0 { + return ErrInvalidLengthAutonat + } + if (iNdEx + skippy) > l { + return io.ErrUnexpectedEOF + } + m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...) + iNdEx += skippy + } + } + + if iNdEx > l { + return io.ErrUnexpectedEOF + } + return nil +} +func skipAutonat(dAtA []byte) (n int, err error) { + l := len(dAtA) + iNdEx := 0 + for iNdEx < l { + var wire uint64 + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return 0, ErrIntOverflowAutonat + } + if iNdEx >= l { + return 0, io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + wireType := int(wire & 0x7) + switch wireType { + case 0: + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return 0, ErrIntOverflowAutonat + } + if iNdEx >= l { + return 0, io.ErrUnexpectedEOF + } + iNdEx++ + if dAtA[iNdEx-1] < 0x80 { + break + } + } + return iNdEx, nil + case 1: + iNdEx += 8 + return iNdEx, nil + case 2: + var length int + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return 0, ErrIntOverflowAutonat + } + if iNdEx >= l { + return 0, io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + length |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + iNdEx += length + if length < 0 { + return 0, ErrInvalidLengthAutonat + } + return iNdEx, nil + case 3: + for { + var innerWire uint64 + var start int = iNdEx + for shift := uint(0); ; shift += 7 { + if shift >= 64 { + return 0, ErrIntOverflowAutonat + } + if iNdEx >= l { + return 0, io.ErrUnexpectedEOF + } + b := dAtA[iNdEx] + iNdEx++ + innerWire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + innerWireType := int(innerWire & 0x7) + if innerWireType == 4 { + break + } + next, err := skipAutonat(dAtA[start:]) + if err != nil { + return 0, err + } + iNdEx = start + next + } + return iNdEx, nil + case 4: + return iNdEx, nil + case 5: + iNdEx += 4 + return iNdEx, nil + default: + return 0, fmt.Errorf("proto: illegal wireType %d", wireType) + } + } + panic("unreachable") +} + +var ( + ErrInvalidLengthAutonat = fmt.Errorf("proto: negative length found during unmarshaling") + ErrIntOverflowAutonat = fmt.Errorf("proto: integer overflow") +) + +func init() { proto.RegisterFile("autonat.proto", fileDescriptor_autonat_bd0ec7a019b57e9d) } + +var fileDescriptor_autonat_bd0ec7a019b57e9d = []byte{ + // 372 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x90, 0xcf, 0x8a, 0xda, 0x50, + 0x14, 0xc6, 0xbd, 0x31, 0xb5, 0xf6, 0x18, 0xc3, 0xed, 0xa1, 0x85, 0x20, 0x25, 0x0d, 0x59, 0x49, + 0x29, 0x22, 0x76, 0x53, 0xba, 0x53, 0x72, 0x0b, 0xd2, 0x56, 0xed, 0x49, 0x5c, 0x87, 0x94, 0xdc, + 0x0e, 0x01, 0x31, 0x21, 0x89, 0x30, 0x6e, 0xe6, 0x89, 0x66, 0x3b, 0xef, 0xe0, 0x72, 0x1e, 0x61, + 0xf0, 0x49, 0x86, 0x5c, 0xa3, 0xa3, 0xe0, 0xac, 0xce, 0x1f, 0x7e, 0xdf, 0x39, 0x1f, 0x1f, 0x74, + 0xa3, 0x4d, 0x99, 0xae, 0xa3, 0x72, 0x90, 0xe5, 0x69, 0x99, 0x22, 0x9c, 0xc6, 0x7f, 0xee, 0x83, + 0x0e, 0x6f, 0xff, 0xc8, 0xa2, 0x88, 0x6e, 0x24, 0x7e, 0x03, 0xbd, 0xdc, 0x66, 0xd2, 0x62, 0x0e, + 0xeb, 0x9b, 0xa3, 0xcf, 0x83, 0x17, 0x6c, 0x50, 0x23, 0xc7, 0x1a, 0x6c, 0x33, 0x49, 0x0a, 0xc6, + 0xaf, 0xa0, 0xc7, 0x49, 0xb4, 0xb2, 0x34, 0x87, 0xf5, 0x3b, 0x23, 0xeb, 0x9a, 0xc8, 0x4b, 0xa2, + 0x15, 0x29, 0x0a, 0x3d, 0x30, 0xaa, 0x4a, 0xb2, 0xc8, 0xd2, 0x75, 0x21, 0xad, 0xa6, 0x52, 0x39, + 0xaf, 0xaa, 0x6a, 0x8e, 0x2e, 0x54, 0xbd, 0x21, 0xb4, 0x17, 0x52, 0xe6, 0xd3, 0xf5, 0xff, 0x14, + 0x4d, 0xd0, 0x92, 0x58, 0x59, 0x36, 0x48, 0x4b, 0x62, 0xfc, 0x00, 0x6f, 0xa2, 0x38, 0xce, 0x0b, + 0x4b, 0x73, 0x9a, 0x7d, 0x83, 0x0e, 0x43, 0xef, 0x3b, 0xe8, 0xd5, 0x3d, 0x1c, 0x82, 0x9e, 0x49, + 0x99, 0x2b, 0xbe, 0x33, 0xfa, 0x74, 0xed, 0xef, 0xf1, 0x32, 0x29, 0xb2, 0x77, 0x07, 0xc6, 0xb9, + 0x13, 0xfc, 0x01, 0xad, 0xa2, 0x8c, 0xca, 0x4d, 0x51, 0xc7, 0xe4, 0x5e, 0xbb, 0x71, 0xa4, 0x7d, + 0x45, 0x52, 0xad, 0x40, 0x1b, 0xe0, 0xd0, 0x05, 0xf2, 0xb6, 0x54, 0x89, 0xbd, 0xa3, 0xb3, 0x0d, + 0x22, 0xe8, 0x95, 0x5d, 0x95, 0x8a, 0x41, 0xaa, 0x77, 0xbf, 0x40, 0xe7, 0x2c, 0x74, 0x6c, 0x83, + 0xee, 0x4d, 0xc7, 0xbf, 0x79, 0x03, 0xdf, 0x43, 0xb7, 0xea, 0x42, 0x12, 0xfe, 0x62, 0x3e, 0xf3, + 0x05, 0x67, 0x6e, 0x02, 0xe6, 0xe5, 0x67, 0x6c, 0x81, 0x36, 0xff, 0xc5, 0x1b, 0xc8, 0xc1, 0x10, + 0xa1, 0xc2, 0x05, 0xd1, 0x9c, 0x78, 0x8c, 0x08, 0x66, 0xbd, 0x21, 0xf1, 0x73, 0xe9, 0x0b, 0x8f, + 0x4b, 0x44, 0xe8, 0x8a, 0x70, 0x32, 0xf6, 0x42, 0x12, 0x7f, 0x97, 0xc2, 0x0f, 0xf8, 0x8e, 0xe1, + 0x47, 0xe0, 0x22, 0x9c, 0xce, 0x02, 0x41, 0xb3, 0x93, 0xfa, 0x5e, 0x9b, 0x18, 0xbb, 0xbd, 0xcd, + 0x1e, 0xf7, 0x36, 0x7b, 0xda, 0xdb, 0xec, 0x39, 0x00, 0x00, 0xff, 0xff, 0x8e, 0xe2, 0x93, 0x4e, + 0x61, 0x02, 0x00, 0x00, +} From fc32ec33156c9e659ebc55fdf4811196e7653a09 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 8 Sep 2018 11:30:56 +0300 Subject: [PATCH 029/132] svc: construct dialer host without listen addrs --- p2p/host/autonat/svc.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 236f162e23..32d089e079 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -31,7 +31,7 @@ type AutoNATService struct { // NewAutoNATService creates a new AutoNATService instance attached to a host func NewAutoNATService(ctx context.Context, h host.Host) (*AutoNATService, error) { - dialer, err := libp2p.New(ctx) + dialer, err := libp2p.New(ctx, libp2p.NoListenAddrs) if err != nil { return nil, err } From 9d20474431fc5d736c5a3a7e76a382cad9fda73a Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 8 Sep 2018 14:21:04 +0300 Subject: [PATCH 030/132] accept libp2p options for the dialer constructor in NewAutoNATService --- p2p/host/autonat/svc.go | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 32d089e079..fd0d08f146 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -30,8 +30,9 @@ type AutoNATService struct { } // NewAutoNATService creates a new AutoNATService instance attached to a host -func NewAutoNATService(ctx context.Context, h host.Host) (*AutoNATService, error) { - dialer, err := libp2p.New(ctx, libp2p.NoListenAddrs) +func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) (*AutoNATService, error) { + opts = append(opts, libp2p.NoListenAddrs) + dialer, err := libp2p.New(ctx, opts...) if err != nil { return nil, err } From a0234678eb4656cd5fe77a6225dc73931b429e92 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 8 Sep 2018 15:57:48 +0300 Subject: [PATCH 031/132] make service dialback timeout configurable; useful for tests --- p2p/host/autonat/svc.go | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index fd0d08f146..6ec7e7c9af 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -18,7 +18,10 @@ import ( const P_CIRCUIT = 290 -var AutoNATServiceResetInterval = 1 * time.Minute +var ( + AutoNATServiceDialTimeout = 42 * time.Second + AutoNATServiceResetInterval = 1 * time.Minute +) // AutoNATService provides NAT autodetection services to other peers type AutoNATService struct { @@ -144,7 +147,7 @@ func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { as.peers[pi.ID] = struct{}{} as.mx.Unlock() - ctx, cancel := context.WithTimeout(as.ctx, 42*time.Second) + ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) defer cancel() err := as.dialer.Connect(ctx, pi) From bc61d559c5bf598cc26f4a763b11e91acf9f827e Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 8 Sep 2018 16:10:11 +0300 Subject: [PATCH 032/132] basic service tests --- p2p/host/autonat/svc_test.go | 128 +++++++++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 p2p/host/autonat/svc_test.go diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go new file mode 100644 index 0000000000..8cc7f667a2 --- /dev/null +++ b/p2p/host/autonat/svc_test.go @@ -0,0 +1,128 @@ +package autonat + +import ( + "context" + "net" + "testing" + "time" + + libp2p "github.com/libp2p/go-libp2p" + host "github.com/libp2p/go-libp2p-host" + pstore "github.com/libp2p/go-libp2p-peerstore" +) + +func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATService) { + h, err := libp2p.New(ctx) + if err != nil { + t.Fatal(err) + } + + as, err := NewAutoNATService(ctx, h) + if err != nil { + t.Fatal(err) + } + + return h, as +} + +func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, AutoNATClient) { + h, err := libp2p.New(ctx) + if err != nil { + t.Fatal(err) + } + + cli := NewAutoNATClient(h) + return h, cli +} + +func connect(t *testing.T, a, b host.Host) { + pinfo := pstore.PeerInfo{ID: a.ID(), Addrs: a.Addrs()} + err := b.Connect(context.Background(), pinfo) + if err != nil { + t.Fatal(err) + } +} + +// Note: these tests assume that the host has only private inet addresses! +func TestAutoNATServiceDialError(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save := AutoNATServiceDialTimeout + AutoNATServiceDialTimeout = 1 * time.Second + + hs, _ := makeAutoNATService(ctx, t) + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.Dial(ctx, hs.ID()) + if err == nil { + t.Fatal("Dial back succeeded unexpectedly!") + } + + if !IsDialError(err) { + t.Fatal(err) + } + + AutoNATServiceDialTimeout = save +} + +func TestAutoNATServiceDialSuccess(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save := private4 + private4 = []*net.IPNet{} + + hs, _ := makeAutoNATService(ctx, t) + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.Dial(ctx, hs.ID()) + if err != nil { + t.Fatalf("Dial back failed: %s", err.Error()) + } + + private4 = save +} + +func TestAutoNATServiceDialRateLimiter(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save1 := AutoNATServiceDialTimeout + AutoNATServiceDialTimeout = 1 * time.Second + save2 := AutoNATServiceResetInterval + AutoNATServiceResetInterval = 1 * time.Second + save3 := private4 + private4 = []*net.IPNet{} + + hs, _ := makeAutoNATService(ctx, t) + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.Dial(ctx, hs.ID()) + if err != nil { + t.Fatal(err) + } + + _, err = ac.Dial(ctx, hs.ID()) + if err == nil { + t.Fatal("Dial back succeeded unexpectedly!") + } + + if !IsDialRefused(err) { + t.Fatal(err) + } + + time.Sleep(2 * time.Second) + + _, err = ac.Dial(ctx, hs.ID()) + if err != nil { + t.Fatal(err) + } + + AutoNATServiceDialTimeout = save1 + AutoNATServiceResetInterval = save2 + private4 = save3 +} From b88d3b600facb55df0fdfedf3b909fb812d96fb8 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 8 Sep 2018 17:01:21 +0300 Subject: [PATCH 033/132] test for ambient autonat functionality --- p2p/host/autonat/autonat_test.go | 84 ++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 p2p/host/autonat/autonat_test.go diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go new file mode 100644 index 0000000000..019a5906b5 --- /dev/null +++ b/p2p/host/autonat/autonat_test.go @@ -0,0 +1,84 @@ +package autonat + +import ( + "context" + "net" + "testing" + "time" + + libp2p "github.com/libp2p/go-libp2p" + host "github.com/libp2p/go-libp2p-host" +) + +func makeAutoNAT(ctx context.Context, t *testing.T) (host.Host, AutoNAT) { + h, err := libp2p.New(ctx) + if err != nil { + t.Fatal(err) + } + + a := NewAutoNAT(ctx, h) + + return h, a +} + +// Note: these tests assume the host has only private inet addresses! +func TestAutoNATPrivate(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save1 := AutoNATBootDelay + AutoNATBootDelay = 1 * time.Second + save2 := AutoNATRefreshInterval + AutoNATRefreshInterval = 1 * time.Second + + hs, _ := makeAutoNATService(ctx, t) + hc, an := makeAutoNAT(ctx, t) + + status := an.Status() + if status != NATStatusUnknown { + t.Fatalf("unexpected NAT status: %d", status) + } + + connect(t, hs, hc) + time.Sleep(2 * time.Second) + + status = an.Status() + if status != NATStatusPrivate { + t.Fatalf("unexpected NAT status: %d", status) + } + + AutoNATBootDelay = save1 + AutoNATRefreshInterval = save2 +} + +func TestAutoNATPublic(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save1 := AutoNATBootDelay + AutoNATBootDelay = 1 * time.Second + save2 := AutoNATRefreshInterval + AutoNATRefreshInterval = 1 * time.Second + save3 := private4 + private4 = []*net.IPNet{} + + hs, _ := makeAutoNATService(ctx, t) + hc, an := makeAutoNAT(ctx, t) + + status := an.Status() + if status != NATStatusUnknown { + t.Fatalf("unexpected NAT status: %d", status) + } + + connect(t, hs, hc) + time.Sleep(2 * time.Second) + + status = an.Status() + if status != NATStatusPublic { + t.Fatalf("unexpected NAT status: %d", status) + } + + AutoNATBootDelay = save1 + AutoNATRefreshInterval = save2 + private4 = save3 +} From 9d3db84029c63c1625911edc37a5a2de8ee415d3 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 29 Sep 2018 11:09:48 +0300 Subject: [PATCH 034/132] address review comments --- p2p/host/autonat/autonat.go | 15 ++++++++++----- p2p/host/autonat/client.go | 7 ++++--- p2p/host/autonat/svc.go | 2 +- p2p/host/autonat/svc_test.go | 10 +++++----- 4 files changed, 20 insertions(+), 14 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index bdf1e8d8ba..037a094f56 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -8,6 +8,7 @@ import ( "time" host "github.com/libp2p/go-libp2p-host" + inet "github.com/libp2p/go-libp2p-net" peer "github.com/libp2p/go-libp2p-peer" ma "github.com/multiformats/go-multiaddr" ) @@ -29,8 +30,7 @@ const ( var ( AutoNATBootDelay = 15 * time.Second AutoNATRefreshInterval = 15 * time.Minute - - AutoNATRequestTimeout = 60 * time.Second + AutoNATRequestTimeout = 60 * time.Second ) // AutoNAT is the interface for ambient NAT autodiscovery @@ -86,7 +86,12 @@ func (as *AmbientAutoNAT) PublicAddr() (ma.Multiaddr, error) { func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection - time.Sleep(AutoNATBootDelay) + select { + case <-time.After(AutoNATBootDelay): + case <-as.ctx.Done(): + return + } + for { as.autodetect() select { @@ -109,7 +114,7 @@ func (as *AmbientAutoNAT) autodetect() { for _, p := range peers { ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) - a, err := cli.Dial(ctx, p) + a, err := cli.DialBack(ctx, p) cancel() switch { @@ -148,7 +153,7 @@ func (as *AmbientAutoNAT) getPeers() []peer.ID { peers := make([]peer.ID, 0, len(as.peers)) for p := range as.peers { - if len(as.host.Network().ConnsToPeer(p)) > 0 { + if as.host.Network().Connectedness(p) == inet.Connected { peers = append(peers, p) } } diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 812ce47628..468bc68106 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -16,8 +16,9 @@ import ( // AutoNATClient is a stateless client interface to AutoNAT peers type AutoNATClient interface { - // Dial requests from a peer providing AutoNAT services to test dial back - Dial(ctx context.Context, p peer.ID) (ma.Multiaddr, error) + // DialBack requests from a peer providing AutoNAT services to test dial back + // and report the address on a successful connection. + DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } // AutoNATError is the class of errors signalled by AutoNAT services @@ -35,7 +36,7 @@ type client struct { h host.Host } -func (c *client) Dial(ctx context.Context, p peer.ID) (ma.Multiaddr, error) { +func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) { s, err := c.h.NewStream(ctx, p, AutoNATProto) if err != nil { return nil, err diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 6ec7e7c9af..b25ead6eb1 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -166,7 +166,7 @@ func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { } ra := conns[0].RemoteMultiaddr() - conns[0].Close() + as.dialer.Network().ClosePeer(pi.ID) return newDialResponseOK(ra) } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 8cc7f667a2..77d482be83 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -55,7 +55,7 @@ func TestAutoNATServiceDialError(t *testing.T) { hc, ac := makeAutoNATClient(ctx, t) connect(t, hs, hc) - _, err := ac.Dial(ctx, hs.ID()) + _, err := ac.DialBack(ctx, hs.ID()) if err == nil { t.Fatal("Dial back succeeded unexpectedly!") } @@ -78,7 +78,7 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { hc, ac := makeAutoNATClient(ctx, t) connect(t, hs, hc) - _, err := ac.Dial(ctx, hs.ID()) + _, err := ac.DialBack(ctx, hs.ID()) if err != nil { t.Fatalf("Dial back failed: %s", err.Error()) } @@ -101,12 +101,12 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { hc, ac := makeAutoNATClient(ctx, t) connect(t, hs, hc) - _, err := ac.Dial(ctx, hs.ID()) + _, err := ac.DialBack(ctx, hs.ID()) if err != nil { t.Fatal(err) } - _, err = ac.Dial(ctx, hs.ID()) + _, err = ac.DialBack(ctx, hs.ID()) if err == nil { t.Fatal("Dial back succeeded unexpectedly!") } @@ -117,7 +117,7 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { time.Sleep(2 * time.Second) - _, err = ac.Dial(ctx, hs.ID()) + _, err = ac.DialBack(ctx, hs.ID()) if err != nil { t.Fatal(err) } From 744bf71d9158cbce7ae26822748975090ffde062 Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 29 Sep 2018 11:38:53 +0300 Subject: [PATCH 035/132] use the protocol list by identify, don't emit chatter on every connection --- p2p/host/autonat/notify.go | 26 +++++++++++++++++--------- 1 file changed, 17 insertions(+), 9 deletions(-) diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 4e2bc9d984..30ad9cd0c1 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -1,8 +1,9 @@ package autonat import ( + "time" + inet "github.com/libp2p/go-libp2p-net" - peer "github.com/libp2p/go-libp2p-peer" ma "github.com/multiformats/go-multiaddr" ) @@ -14,18 +15,25 @@ func (as *AmbientAutoNAT) OpenedStream(net inet.Network, s inet.Stream) {} func (as *AmbientAutoNAT) ClosedStream(net inet.Network, s inet.Stream) {} func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { - go func(p peer.ID) { - s, err := as.host.NewStream(as.ctx, p, AutoNATProto) + p := c.RemotePeer() + + go func() { + // add some delay for identify + time.Sleep(250 * time.Millisecond) + + protos, err := as.host.Peerstore().SupportsProtocols(p, AutoNATProto) if err != nil { + log.Debugf("error retrieving supported protocols for peer %s: %s", p, err) return } - s.Close() - log.Infof("Discovered AutoNAT peer %s", p.Pretty()) - as.mx.Lock() - as.peers[p] = struct{}{} - as.mx.Unlock() - }(c.RemotePeer()) + if len(protos) > 0 { + log.Infof("Discovered AutoNAT peer %s", p.Pretty()) + as.mx.Lock() + as.peers[p] = struct{}{} + as.mx.Unlock() + } + }() } func (as *AmbientAutoNAT) Disconnected(net inet.Network, c inet.Conn) {} From c640cd812b60b1cf14f841c908785f9374610748 Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 3 Oct 2018 16:15:58 +0300 Subject: [PATCH 036/132] add observed address to the dialback set --- p2p/host/autonat/svc.go | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index b25ead6eb1..479629f0f3 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -78,7 +78,7 @@ func (as *AutoNATService) handleStream(s inet.Stream) { return } - dr := as.handleDial(pid, req.GetDial().GetPeer()) + dr := as.handleDial(pid, s.Conn().RemoteMultiaddr(), req.GetDial().GetPeer()) res.Type = pb.Message_DIAL_RESPONSE.Enum() res.DialResponse = dr @@ -90,7 +90,7 @@ func (as *AutoNATService) handleStream(s inet.Stream) { } } -func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { +func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { if mpi == nil { return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") } @@ -108,6 +108,14 @@ func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Me } addrs := make([]ma.Multiaddr, 0) + seen := make(map[string]struct{}) + + // add observed addr to the list of addresses to dial + if !as.skipDial(obsaddr) { + addrs = append(addrs, obsaddr) + seen[obsaddr.String()] = struct{}{} + } + for _, maddr := range mpi.GetAddrs() { addr, err := ma.NewMultiaddrBytes(maddr) if err != nil { @@ -115,18 +123,18 @@ func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Me continue } - // skip relay addresses - _, err = addr.ValueForProtocol(P_CIRCUIT) - if err == nil { + if as.skipDial(addr) { continue } - // skip private network (unroutable) addresses - if !isPublicAddr(addr) { + str := addr.String() + _, ok := seen[str] + if ok { continue } addrs = append(addrs, addr) + seen[str] = struct{}{} } if len(addrs) == 0 { @@ -136,6 +144,21 @@ func (as *AutoNATService) handleDial(p peer.ID, mpi *pb.Message_PeerInfo) *pb.Me return as.doDial(pstore.PeerInfo{ID: p, Addrs: addrs}) } +func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { + // skip relay addresses + _, err := addr.ValueForProtocol(P_CIRCUIT) + if err == nil { + return true + } + + // skip private network (unroutable) addresses + if !isPublicAddr(addr) { + return true + } + + return false +} + func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() From 8c66f57ec6347466d63926c153cfdab2c5dab4ed Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 3 Oct 2018 16:22:58 +0300 Subject: [PATCH 037/132] ensure test hosts are only on loopback --- p2p/host/autonat/autonat_test.go | 2 +- p2p/host/autonat/svc_test.go | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 019a5906b5..570c4a269c 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -11,7 +11,7 @@ import ( ) func makeAutoNAT(ctx context.Context, t *testing.T) (host.Host, AutoNAT) { - h, err := libp2p.New(ctx) + h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) if err != nil { t.Fatal(err) } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 77d482be83..ba2395b2f5 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -12,7 +12,7 @@ import ( ) func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATService) { - h, err := libp2p.New(ctx) + h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) if err != nil { t.Fatal(err) } @@ -26,7 +26,7 @@ func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATS } func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, AutoNATClient) { - h, err := libp2p.New(ctx) + h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) if err != nil { t.Fatal(err) } From cb0e1930e3bd1501a3825b84dd764abafdfcddfa Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 3 Oct 2018 16:28:21 +0300 Subject: [PATCH 038/132] add /libp2p prefix in protocol string --- p2p/host/autonat/proto.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index 7d28d4bdb6..c9768cbdbd 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -8,7 +8,7 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -const AutoNATProto = "/autonat/1.0.0" +const AutoNATProto = "/libp2p/autonat/1.0.0" var log = logging.Logger("autonat") From 88ad7b74ec183c46427660eb4e2d5338876e06ab Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 3 Oct 2018 19:41:08 +0300 Subject: [PATCH 039/132] configurable throttle for service rate limiter --- p2p/host/autonat/svc.go | 15 +++++++++------ p2p/host/autonat/svc_test.go | 7 +++++-- 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 479629f0f3..95c66bdd82 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -21,6 +21,8 @@ const P_CIRCUIT = 290 var ( AutoNATServiceDialTimeout = 42 * time.Second AutoNATServiceResetInterval = 1 * time.Minute + + AutoNATServiceThrottle = 3 ) // AutoNATService provides NAT autodetection services to other peers @@ -28,8 +30,9 @@ type AutoNATService struct { ctx context.Context dialer host.Host + // rate limiter mx sync.Mutex - peers map[peer.ID]struct{} + peers map[peer.ID]int } // NewAutoNATService creates a new AutoNATService instance attached to a host @@ -43,7 +46,7 @@ func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) as := &AutoNATService{ ctx: ctx, dialer: dialer, - peers: make(map[peer.ID]struct{}), + peers: make(map[peer.ID]int), } h.SetStreamHandler(AutoNATProto, as.handleStream) @@ -162,12 +165,12 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() - _, ok := as.peers[pi.ID] - if ok { + count := as.peers[pi.ID] + if count >= AutoNATServiceThrottle { as.mx.Unlock() return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") } - as.peers[pi.ID] = struct{}{} + as.peers[pi.ID] = count + 1 as.mx.Unlock() ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) @@ -201,7 +204,7 @@ func (as *AutoNATService) resetPeers() { select { case <-ticker.C: as.mx.Lock() - as.peers = make(map[peer.ID]struct{}) + as.peers = make(map[peer.ID]int) as.mx.Unlock() case <-as.ctx.Done(): diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index ba2395b2f5..cfa4068bfa 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -94,7 +94,9 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceDialTimeout = 1 * time.Second save2 := AutoNATServiceResetInterval AutoNATServiceResetInterval = 1 * time.Second - save3 := private4 + save3 := AutoNATServiceThrottle + AutoNATServiceThrottle = 1 + save4 := private4 private4 = []*net.IPNet{} hs, _ := makeAutoNATService(ctx, t) @@ -124,5 +126,6 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceDialTimeout = save1 AutoNATServiceResetInterval = save2 - private4 = save3 + AutoNATServiceThrottle = save3 + private4 = save4 } From 2d5d58ce51b5e5cde93243b6e2d6ae8bbb17d308 Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 3 Oct 2018 19:52:42 +0300 Subject: [PATCH 040/132] call AutoNATService.peers something else (reqs) --- p2p/host/autonat/svc.go | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 95c66bdd82..4d395d22ec 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -31,8 +31,8 @@ type AutoNATService struct { dialer host.Host // rate limiter - mx sync.Mutex - peers map[peer.ID]int + mx sync.Mutex + reqs map[peer.ID]int } // NewAutoNATService creates a new AutoNATService instance attached to a host @@ -46,11 +46,11 @@ func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) as := &AutoNATService{ ctx: ctx, dialer: dialer, - peers: make(map[peer.ID]int), + reqs: make(map[peer.ID]int), } h.SetStreamHandler(AutoNATProto, as.handleStream) - go as.resetPeers() + go as.resetRateLimiter() return as, nil } @@ -165,12 +165,12 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() - count := as.peers[pi.ID] + count := as.reqs[pi.ID] if count >= AutoNATServiceThrottle { as.mx.Unlock() return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") } - as.peers[pi.ID] = count + 1 + as.reqs[pi.ID] = count + 1 as.mx.Unlock() ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) @@ -196,7 +196,7 @@ func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { return newDialResponseOK(ra) } -func (as *AutoNATService) resetPeers() { +func (as *AutoNATService) resetRateLimiter() { ticker := time.NewTicker(AutoNATServiceResetInterval) defer ticker.Stop() @@ -204,7 +204,7 @@ func (as *AutoNATService) resetPeers() { select { case <-ticker.C: as.mx.Lock() - as.peers = make(map[peer.ID]int) + as.reqs = make(map[peer.ID]int) as.mx.Unlock() case <-as.ctx.Done(): From 5ada32f26c9f796b674b0759469284a827403b77 Mon Sep 17 00:00:00 2001 From: vyzo Date: Thu, 4 Oct 2018 13:37:51 +0300 Subject: [PATCH 041/132] use more peer dial errors for increased confidence in NATPrivate state 3 times is enemy action; this is more resilient to transient dial errors. --- p2p/host/autonat/autonat.go | 45 ++++++++++++++++++++++++++++--------- 1 file changed, 34 insertions(+), 11 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 037a094f56..e006900fc3 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -29,6 +29,7 @@ const ( var ( AutoNATBootDelay = 15 * time.Second + AutoNATRetryInterval = 60 * time.Second AutoNATRefreshInterval = 15 * time.Minute AutoNATRequestTimeout = 60 * time.Second ) @@ -47,10 +48,11 @@ type AmbientAutoNAT struct { ctx context.Context host host.Host - mx sync.Mutex - peers map[peer.ID]struct{} - status NATStatus - addr ma.Multiaddr + mx sync.Mutex + peers map[peer.ID]struct{} + status NATStatus + addr ma.Multiaddr + confidence int } // NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host @@ -94,8 +96,14 @@ func (as *AmbientAutoNAT) background() { for { as.autodetect() + + delay := AutoNATRefreshInterval + if as.status == NATStatusUnknown { + delay = AutoNATRetryInterval + } + select { - case <-time.After(AutoNATRefreshInterval): + case <-time.After(delay): case <-as.ctx.Done(): return } @@ -111,6 +119,7 @@ func (as *AmbientAutoNAT) autodetect() { } cli := NewAutoNATClient(as.host) + failures := 0 for _, p := range peers { ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) @@ -123,15 +132,21 @@ func (as *AmbientAutoNAT) autodetect() { as.mx.Lock() as.addr = a as.status = NATStatusPublic + as.confidence = 0 as.mx.Unlock() return case IsDialError(err): - log.Debugf("NAT status is private; dial error through %s: %s", p.Pretty(), err.Error()) - as.mx.Lock() - as.status = NATStatusPrivate - as.mx.Unlock() - return + log.Debugf("dial error through %s: %s", p.Pretty(), err.Error()) + failures++ + if failures >= 3 || as.confidence >= 3 { // 3 times is enemy action + log.Debugf("NAT status is private") + as.mx.Lock() + as.status = NATStatusPrivate + as.confidence = 3 + as.mx.Unlock() + return + } default: log.Debugf("Error dialing through %s: %s", p.Pretty(), err.Error()) @@ -139,7 +154,15 @@ func (as *AmbientAutoNAT) autodetect() { } as.mx.Lock() - as.status = NATStatusUnknown + if failures > 0 { + as.status = NATStatusPrivate + as.confidence++ + log.Debugf("NAT status is private") + } else { + as.status = NATStatusUnknown + as.confidence = 0 + log.Debugf("NAT status is unknown") + } as.mx.Unlock() } From ab670969010a8b2fd69f7f55bf54e3ebb4f450ed Mon Sep 17 00:00:00 2001 From: vyzo Date: Thu, 4 Oct 2018 13:46:39 +0300 Subject: [PATCH 042/132] use more peers if less than 3 are connected --- p2p/host/autonat/autonat.go | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index e006900fc3..4f766ce7c9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -29,7 +29,7 @@ const ( var ( AutoNATBootDelay = 15 * time.Second - AutoNATRetryInterval = 60 * time.Second + AutoNATRetryInterval = 90 * time.Second AutoNATRefreshInterval = 15 * time.Minute AutoNATRequestTimeout = 60 * time.Second ) @@ -174,23 +174,24 @@ func (as *AmbientAutoNAT) getPeers() []peer.ID { return nil } - peers := make([]peer.ID, 0, len(as.peers)) + var connected, others []peer.ID + for p := range as.peers { if as.host.Network().Connectedness(p) == inet.Connected { - peers = append(peers, p) + connected = append(connected, p) + } else { + others = append(others, p) } } - if len(peers) == 0 { - // we don't have any open connections, try any autonat peer that we know about - for p := range as.peers { - peers = append(peers, p) - } - } + shufflePeers(connected) - shufflePeers(peers) - - return peers + if len(connected) < 3 { + shufflePeers(others) + return append(connected, others...) + } else { + return connected + } } func shufflePeers(peers []peer.ID) { From bff416bf7e21792001adea6a946c7719dd30ca4a Mon Sep 17 00:00:00 2001 From: vyzo Date: Thu, 4 Oct 2018 16:57:02 +0300 Subject: [PATCH 043/132] adjust AutoNATRetryInterval in autonat tests --- p2p/host/autonat/autonat_test.go | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 570c4a269c..ac438f8482 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -30,6 +30,8 @@ func TestAutoNATPrivate(t *testing.T) { AutoNATBootDelay = 1 * time.Second save2 := AutoNATRefreshInterval AutoNATRefreshInterval = 1 * time.Second + save3 := AutoNATRetryInterval + AutoNATRetryInterval = 1 * time.Second hs, _ := makeAutoNATService(ctx, t) hc, an := makeAutoNAT(ctx, t) @@ -49,6 +51,7 @@ func TestAutoNATPrivate(t *testing.T) { AutoNATBootDelay = save1 AutoNATRefreshInterval = save2 + AutoNATRetryInterval = save3 } func TestAutoNATPublic(t *testing.T) { @@ -59,7 +62,9 @@ func TestAutoNATPublic(t *testing.T) { AutoNATBootDelay = 1 * time.Second save2 := AutoNATRefreshInterval AutoNATRefreshInterval = 1 * time.Second - save3 := private4 + save3 := AutoNATRetryInterval + AutoNATRetryInterval = 1 * time.Second + save4 := private4 private4 = []*net.IPNet{} hs, _ := makeAutoNATService(ctx, t) @@ -80,5 +85,6 @@ func TestAutoNATPublic(t *testing.T) { AutoNATBootDelay = save1 AutoNATRefreshInterval = save2 - private4 = save3 + AutoNATRetryInterval = save3 + private4 = save4 } From d15e65b95bdf4066aecd3bc40059ace606ac2251 Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 12 Oct 2018 18:06:04 +0300 Subject: [PATCH 044/132] increase identify delay to 500ms --- p2p/host/autonat/notify.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 30ad9cd0c1..63ed44390d 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -19,7 +19,7 @@ func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { go func() { // add some delay for identify - time.Sleep(250 * time.Millisecond) + time.Sleep(500 * time.Millisecond) protos, err := as.host.Peerstore().SupportsProtocols(p, AutoNATProto) if err != nil { From 810238c3e7784309433359501ba2c5d07c76df5d Mon Sep 17 00:00:00 2001 From: vyzo Date: Fri, 12 Oct 2018 18:07:41 +0300 Subject: [PATCH 045/132] jenkins file --- p2p/host/autonat/ci/Jenkinsfile | 1 + 1 file changed, 1 insertion(+) create mode 100644 p2p/host/autonat/ci/Jenkinsfile diff --git a/p2p/host/autonat/ci/Jenkinsfile b/p2p/host/autonat/ci/Jenkinsfile new file mode 100644 index 0000000000..b2067e6232 --- /dev/null +++ b/p2p/host/autonat/ci/Jenkinsfile @@ -0,0 +1 @@ +golang() From 590aed0cef2ea52544fc3ba6be13ec098677d42b Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 12:12:10 +0300 Subject: [PATCH 046/132] Add configurable Identify delay, with default value of 5 secs --- p2p/host/autonat/autonat_test.go | 31 +++++++++---------------------- p2p/host/autonat/notify.go | 4 +++- 2 files changed, 12 insertions(+), 23 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index ac438f8482..6d31d46a87 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -10,6 +10,13 @@ import ( host "github.com/libp2p/go-libp2p-host" ) +func init() { + AutoNATBootDelay = 1 * time.Second + AutoNATRefreshInterval = 1 * time.Second + AutoNATRetryInterval = 1 * time.Second + AutoNATIdentifyDelay = 100 * time.Millisecond +} + func makeAutoNAT(ctx context.Context, t *testing.T) (host.Host, AutoNAT) { h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) if err != nil { @@ -26,13 +33,6 @@ func TestAutoNATPrivate(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save1 := AutoNATBootDelay - AutoNATBootDelay = 1 * time.Second - save2 := AutoNATRefreshInterval - AutoNATRefreshInterval = 1 * time.Second - save3 := AutoNATRetryInterval - AutoNATRetryInterval = 1 * time.Second - hs, _ := makeAutoNATService(ctx, t) hc, an := makeAutoNAT(ctx, t) @@ -48,23 +48,13 @@ func TestAutoNATPrivate(t *testing.T) { if status != NATStatusPrivate { t.Fatalf("unexpected NAT status: %d", status) } - - AutoNATBootDelay = save1 - AutoNATRefreshInterval = save2 - AutoNATRetryInterval = save3 } func TestAutoNATPublic(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save1 := AutoNATBootDelay - AutoNATBootDelay = 1 * time.Second - save2 := AutoNATRefreshInterval - AutoNATRefreshInterval = 1 * time.Second - save3 := AutoNATRetryInterval - AutoNATRetryInterval = 1 * time.Second - save4 := private4 + save := private4 private4 = []*net.IPNet{} hs, _ := makeAutoNATService(ctx, t) @@ -83,8 +73,5 @@ func TestAutoNATPublic(t *testing.T) { t.Fatalf("unexpected NAT status: %d", status) } - AutoNATBootDelay = save1 - AutoNATRefreshInterval = save2 - AutoNATRetryInterval = save3 - private4 = save4 + private4 = save } diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 63ed44390d..ebe709baf6 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -9,6 +9,8 @@ import ( var _ inet.Notifiee = (*AmbientAutoNAT)(nil) +var AutoNATIdentifyDelay = 5 * time.Second + func (as *AmbientAutoNAT) Listen(net inet.Network, a ma.Multiaddr) {} func (as *AmbientAutoNAT) ListenClose(net inet.Network, a ma.Multiaddr) {} func (as *AmbientAutoNAT) OpenedStream(net inet.Network, s inet.Stream) {} @@ -19,7 +21,7 @@ func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { go func() { // add some delay for identify - time.Sleep(500 * time.Millisecond) + time.Sleep(AutoNATIdentifyDelay) protos, err := as.host.Peerstore().SupportsProtocols(p, AutoNATProto) if err != nil { From 0710dd37a5a00842ed728af56b1517fe93942515 Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 12:48:28 +0300 Subject: [PATCH 047/132] add docstring for confidence --- p2p/host/autonat/autonat.go | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 4f766ce7c9..1eace01770 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -48,10 +48,15 @@ type AmbientAutoNAT struct { ctx context.Context host host.Host - mx sync.Mutex - peers map[peer.ID]struct{} - status NATStatus - addr ma.Multiaddr + mx sync.Mutex + peers map[peer.ID]struct{} + status NATStatus + addr ma.Multiaddr + // Reflects the confidence on of the NATStatus being private, as a single + // dialback may fail for reasons unrelated to NAT. + // If it is <3, then multiple autoNAT peers may be contacted for dialback + // If only a single autoNAT peer is known, then the confidence increases + // for each failure until it reaches 3. confidence int } From 2c67a96430bb0e459014ec79765d709367fa9643 Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 14:39:19 +0300 Subject: [PATCH 048/132] extract service from package --- p2p/host/autonat/addr.go | 12 +- p2p/host/autonat/autonat_test.go | 85 +++++++++--- p2p/host/autonat/proto.go | 15 --- p2p/host/autonat/svc.go | 214 ------------------------------- p2p/host/autonat/svc_test.go | 131 ------------------- 5 files changed, 75 insertions(+), 382 deletions(-) delete mode 100644 p2p/host/autonat/svc.go delete mode 100644 p2p/host/autonat/svc_test.go diff --git a/p2p/host/autonat/addr.go b/p2p/host/autonat/addr.go index 4e078e3765..eee254f8a0 100644 --- a/p2p/host/autonat/addr.go +++ b/p2p/host/autonat/addr.go @@ -6,7 +6,7 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -var private4, private6 []*net.IPNet +var Private4, Private6 []*net.IPNet var privateCIDR4 = []string{ // localhost "127.0.0.0/8", @@ -28,8 +28,8 @@ var privateCIDR6 = []string{ } func init() { - private4 = parsePrivateCIDR(privateCIDR4) - private6 = parsePrivateCIDR(privateCIDR6) + Private4 = parsePrivateCIDR(privateCIDR4) + Private6 = parsePrivateCIDR(privateCIDR6) } func parsePrivateCIDR(cidrs []string) []*net.IPNet { @@ -44,15 +44,15 @@ func parsePrivateCIDR(cidrs []string) []*net.IPNet { return ipnets } -func isPublicAddr(a ma.Multiaddr) bool { +func IsPublicAddr(a ma.Multiaddr) bool { ip, err := a.ValueForProtocol(ma.P_IP4) if err == nil { - return !inAddrRange(ip, private4) + return !inAddrRange(ip, Private4) } ip, err = a.ValueForProtocol(ma.P_IP6) if err == nil { - return !inAddrRange(ip, private6) + return !inAddrRange(ip, Private6) } return false diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 6d31d46a87..6170d01d19 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -2,12 +2,18 @@ package autonat import ( "context" - "net" "testing" "time" - libp2p "github.com/libp2p/go-libp2p" + pb "github.com/libp2p/go-libp2p-autonat/pb" + + ggio "github.com/gogo/protobuf/io" + bhost "github.com/libp2p/go-libp2p-blankhost" host "github.com/libp2p/go-libp2p-host" + inet "github.com/libp2p/go-libp2p-net" + pstore "github.com/libp2p/go-libp2p-peerstore" + swarmt "github.com/libp2p/go-libp2p-swarm/testing" + ma "github.com/multiformats/go-multiaddr" ) func init() { @@ -17,24 +23,76 @@ func init() { AutoNATIdentifyDelay = 100 * time.Millisecond } -func makeAutoNAT(ctx context.Context, t *testing.T) (host.Host, AutoNAT) { - h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) - if err != nil { - t.Fatal(err) +// these are mock service implementations for testing +func makeAutoNATServicePrivate(ctx context.Context, t *testing.T) host.Host { + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) + return h +} + +func makeAutoNATServicePublic(ctx context.Context, t *testing.T) host.Host { + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h.SetStreamHandler(AutoNATProto, sayAutoNATPublic) + return h +} + +func sayAutoNATPrivate(s inet.Stream) { + defer s.Close() + w := ggio.NewDelimitedWriter(s) + res := pb.Message{ + Type: pb.Message_DIAL_RESPONSE.Enum(), + DialResponse: newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses"), } + w.WriteMsg(&res) +} + +func sayAutoNATPublic(s inet.Stream) { + defer s.Close() + w := ggio.NewDelimitedWriter(s) + res := pb.Message{ + Type: pb.Message_DIAL_RESPONSE.Enum(), + DialResponse: newDialResponseOK(s.Conn().RemoteMultiaddr()), + } + w.WriteMsg(&res) +} +func newDialResponseOK(addr ma.Multiaddr) *pb.Message_DialResponse { + dr := new(pb.Message_DialResponse) + dr.Status = pb.Message_OK.Enum() + dr.Addr = addr.Bytes() + return dr +} + +func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Message_DialResponse { + dr := new(pb.Message_DialResponse) + dr.Status = status.Enum() + dr.StatusText = &text + return dr +} + +func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) a := NewAutoNAT(ctx, h) + a.(*AmbientAutoNAT).peers[ash.ID()] = struct{}{} return h, a } -// Note: these tests assume the host has only private inet addresses! +func connect(t *testing.T, a, b host.Host) { + pinfo := pstore.PeerInfo{ID: a.ID(), Addrs: a.Addrs()} + err := b.Connect(context.Background(), pinfo) + if err != nil { + t.Fatal(err) + } +} + +// tests func TestAutoNATPrivate(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - hs, _ := makeAutoNATService(ctx, t) - hc, an := makeAutoNAT(ctx, t) + hs := makeAutoNATServicePrivate(ctx, t) + hc, an := makeAutoNAT(ctx, t, hs) status := an.Status() if status != NATStatusUnknown { @@ -54,11 +112,8 @@ func TestAutoNATPublic(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save := private4 - private4 = []*net.IPNet{} - - hs, _ := makeAutoNATService(ctx, t) - hc, an := makeAutoNAT(ctx, t) + hs := makeAutoNATServicePublic(ctx, t) + hc, an := makeAutoNAT(ctx, t, hs) status := an.Status() if status != NATStatusUnknown { @@ -72,6 +127,4 @@ func TestAutoNATPublic(t *testing.T) { if status != NATStatusPublic { t.Fatalf("unexpected NAT status: %d", status) } - - private4 = save } diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index c9768cbdbd..2dbb8ebaa7 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -5,7 +5,6 @@ import ( logging "github.com/ipfs/go-log" pstore "github.com/libp2p/go-libp2p-peerstore" - ma "github.com/multiformats/go-multiaddr" ) const AutoNATProto = "/libp2p/autonat/1.0.0" @@ -25,17 +24,3 @@ func newDialMessage(pi pstore.PeerInfo) *pb.Message { return msg } - -func newDialResponseOK(addr ma.Multiaddr) *pb.Message_DialResponse { - dr := new(pb.Message_DialResponse) - dr.Status = pb.Message_OK.Enum() - dr.Addr = addr.Bytes() - return dr -} - -func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Message_DialResponse { - dr := new(pb.Message_DialResponse) - dr.Status = status.Enum() - dr.StatusText = &text - return dr -} diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go deleted file mode 100644 index 4d395d22ec..0000000000 --- a/p2p/host/autonat/svc.go +++ /dev/null @@ -1,214 +0,0 @@ -package autonat - -import ( - "context" - "sync" - "time" - - pb "github.com/libp2p/go-libp2p-autonat/pb" - - ggio "github.com/gogo/protobuf/io" - libp2p "github.com/libp2p/go-libp2p" - host "github.com/libp2p/go-libp2p-host" - inet "github.com/libp2p/go-libp2p-net" - peer "github.com/libp2p/go-libp2p-peer" - pstore "github.com/libp2p/go-libp2p-peerstore" - ma "github.com/multiformats/go-multiaddr" -) - -const P_CIRCUIT = 290 - -var ( - AutoNATServiceDialTimeout = 42 * time.Second - AutoNATServiceResetInterval = 1 * time.Minute - - AutoNATServiceThrottle = 3 -) - -// AutoNATService provides NAT autodetection services to other peers -type AutoNATService struct { - ctx context.Context - dialer host.Host - - // rate limiter - mx sync.Mutex - reqs map[peer.ID]int -} - -// NewAutoNATService creates a new AutoNATService instance attached to a host -func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) (*AutoNATService, error) { - opts = append(opts, libp2p.NoListenAddrs) - dialer, err := libp2p.New(ctx, opts...) - if err != nil { - return nil, err - } - - as := &AutoNATService{ - ctx: ctx, - dialer: dialer, - reqs: make(map[peer.ID]int), - } - h.SetStreamHandler(AutoNATProto, as.handleStream) - - go as.resetRateLimiter() - - return as, nil -} - -func (as *AutoNATService) handleStream(s inet.Stream) { - defer s.Close() - - pid := s.Conn().RemotePeer() - log.Debugf("New stream from %s", pid.Pretty()) - - r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) - w := ggio.NewDelimitedWriter(s) - - var req pb.Message - var res pb.Message - - err := r.ReadMsg(&req) - if err != nil { - log.Debugf("Error reading message from %s: %s", pid.Pretty(), err.Error()) - s.Reset() - return - } - - t := req.GetType() - if t != pb.Message_DIAL { - log.Debugf("Unexpected message from %s: %s (%d)", pid.Pretty(), t.String(), t) - s.Reset() - return - } - - dr := as.handleDial(pid, s.Conn().RemoteMultiaddr(), req.GetDial().GetPeer()) - res.Type = pb.Message_DIAL_RESPONSE.Enum() - res.DialResponse = dr - - err = w.WriteMsg(&res) - if err != nil { - log.Debugf("Error writing response to %s: %s", pid.Pretty(), err.Error()) - s.Reset() - return - } -} - -func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { - if mpi == nil { - return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") - } - - mpid := mpi.GetId() - if mpid != nil { - mp, err := peer.IDFromBytes(mpid) - if err != nil { - return newDialResponseError(pb.Message_E_BAD_REQUEST, "bad peer id") - } - - if mp != p { - return newDialResponseError(pb.Message_E_BAD_REQUEST, "peer id mismatch") - } - } - - addrs := make([]ma.Multiaddr, 0) - seen := make(map[string]struct{}) - - // add observed addr to the list of addresses to dial - if !as.skipDial(obsaddr) { - addrs = append(addrs, obsaddr) - seen[obsaddr.String()] = struct{}{} - } - - for _, maddr := range mpi.GetAddrs() { - addr, err := ma.NewMultiaddrBytes(maddr) - if err != nil { - log.Debugf("Error parsing multiaddr: %s", err.Error()) - continue - } - - if as.skipDial(addr) { - continue - } - - str := addr.String() - _, ok := seen[str] - if ok { - continue - } - - addrs = append(addrs, addr) - seen[str] = struct{}{} - } - - if len(addrs) == 0 { - return newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses") - } - - return as.doDial(pstore.PeerInfo{ID: p, Addrs: addrs}) -} - -func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { - // skip relay addresses - _, err := addr.ValueForProtocol(P_CIRCUIT) - if err == nil { - return true - } - - // skip private network (unroutable) addresses - if !isPublicAddr(addr) { - return true - } - - return false -} - -func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { - // rate limit check - as.mx.Lock() - count := as.reqs[pi.ID] - if count >= AutoNATServiceThrottle { - as.mx.Unlock() - return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") - } - as.reqs[pi.ID] = count + 1 - as.mx.Unlock() - - ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) - defer cancel() - - err := as.dialer.Connect(ctx, pi) - if err != nil { - log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) - // wait for the context to timeout to avoid leaking timing information - // this renders the service ineffective as a port scanner - <-ctx.Done() - return newDialResponseError(pb.Message_E_DIAL_ERROR, "dial failed") - } - - conns := as.dialer.Network().ConnsToPeer(pi.ID) - if len(conns) == 0 { - log.Errorf("supposedly connected to %s, but no connection to peer", pi.ID.Pretty()) - return newDialResponseError(pb.Message_E_INTERNAL_ERROR, "internal service error") - } - - ra := conns[0].RemoteMultiaddr() - as.dialer.Network().ClosePeer(pi.ID) - return newDialResponseOK(ra) -} - -func (as *AutoNATService) resetRateLimiter() { - ticker := time.NewTicker(AutoNATServiceResetInterval) - defer ticker.Stop() - - for { - select { - case <-ticker.C: - as.mx.Lock() - as.reqs = make(map[peer.ID]int) - as.mx.Unlock() - - case <-as.ctx.Done(): - return - } - } -} diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go deleted file mode 100644 index cfa4068bfa..0000000000 --- a/p2p/host/autonat/svc_test.go +++ /dev/null @@ -1,131 +0,0 @@ -package autonat - -import ( - "context" - "net" - "testing" - "time" - - libp2p "github.com/libp2p/go-libp2p" - host "github.com/libp2p/go-libp2p-host" - pstore "github.com/libp2p/go-libp2p-peerstore" -) - -func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATService) { - h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) - if err != nil { - t.Fatal(err) - } - - as, err := NewAutoNATService(ctx, h) - if err != nil { - t.Fatal(err) - } - - return h, as -} - -func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, AutoNATClient) { - h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) - if err != nil { - t.Fatal(err) - } - - cli := NewAutoNATClient(h) - return h, cli -} - -func connect(t *testing.T, a, b host.Host) { - pinfo := pstore.PeerInfo{ID: a.ID(), Addrs: a.Addrs()} - err := b.Connect(context.Background(), pinfo) - if err != nil { - t.Fatal(err) - } -} - -// Note: these tests assume that the host has only private inet addresses! -func TestAutoNATServiceDialError(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - save := AutoNATServiceDialTimeout - AutoNATServiceDialTimeout = 1 * time.Second - - hs, _ := makeAutoNATService(ctx, t) - hc, ac := makeAutoNATClient(ctx, t) - connect(t, hs, hc) - - _, err := ac.DialBack(ctx, hs.ID()) - if err == nil { - t.Fatal("Dial back succeeded unexpectedly!") - } - - if !IsDialError(err) { - t.Fatal(err) - } - - AutoNATServiceDialTimeout = save -} - -func TestAutoNATServiceDialSuccess(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - save := private4 - private4 = []*net.IPNet{} - - hs, _ := makeAutoNATService(ctx, t) - hc, ac := makeAutoNATClient(ctx, t) - connect(t, hs, hc) - - _, err := ac.DialBack(ctx, hs.ID()) - if err != nil { - t.Fatalf("Dial back failed: %s", err.Error()) - } - - private4 = save -} - -func TestAutoNATServiceDialRateLimiter(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - save1 := AutoNATServiceDialTimeout - AutoNATServiceDialTimeout = 1 * time.Second - save2 := AutoNATServiceResetInterval - AutoNATServiceResetInterval = 1 * time.Second - save3 := AutoNATServiceThrottle - AutoNATServiceThrottle = 1 - save4 := private4 - private4 = []*net.IPNet{} - - hs, _ := makeAutoNATService(ctx, t) - hc, ac := makeAutoNATClient(ctx, t) - connect(t, hs, hc) - - _, err := ac.DialBack(ctx, hs.ID()) - if err != nil { - t.Fatal(err) - } - - _, err = ac.DialBack(ctx, hs.ID()) - if err == nil { - t.Fatal("Dial back succeeded unexpectedly!") - } - - if !IsDialRefused(err) { - t.Fatal(err) - } - - time.Sleep(2 * time.Second) - - _, err = ac.DialBack(ctx, hs.ID()) - if err != nil { - t.Fatal(err) - } - - AutoNATServiceDialTimeout = save1 - AutoNATServiceResetInterval = save2 - AutoNATServiceThrottle = save3 - private4 = save4 -} From 0bc8c8010da218451a14e6ce72f4a572a5b1806b Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 14:53:35 +0300 Subject: [PATCH 049/132] add docstring for IsPublicAddr --- p2p/host/autonat/addr.go | 1 + 1 file changed, 1 insertion(+) diff --git a/p2p/host/autonat/addr.go b/p2p/host/autonat/addr.go index eee254f8a0..d653914150 100644 --- a/p2p/host/autonat/addr.go +++ b/p2p/host/autonat/addr.go @@ -44,6 +44,7 @@ func parsePrivateCIDR(cidrs []string) []*net.IPNet { return ipnets } +// IsPublicAddr retruns true if the IP part of the multiaddr is not in a private network func IsPublicAddr(a ma.Multiaddr) bool { ip, err := a.ValueForProtocol(ma.P_IP4) if err == nil { From 33423558c527d3e03a71e9937067cfb9c3b5677d Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 15:14:34 +0300 Subject: [PATCH 050/132] service implementation --- p2p/host/autonat/ci/Jenkinsfile | 1 + p2p/host/autonat/proto.go | 24 ++++ p2p/host/autonat/svc.go | 215 ++++++++++++++++++++++++++++++++ p2p/host/autonat/svc_test.go | 132 ++++++++++++++++++++ 4 files changed, 372 insertions(+) create mode 100644 p2p/host/autonat/ci/Jenkinsfile create mode 100644 p2p/host/autonat/proto.go create mode 100644 p2p/host/autonat/svc.go create mode 100644 p2p/host/autonat/svc_test.go diff --git a/p2p/host/autonat/ci/Jenkinsfile b/p2p/host/autonat/ci/Jenkinsfile new file mode 100644 index 0000000000..b2067e6232 --- /dev/null +++ b/p2p/host/autonat/ci/Jenkinsfile @@ -0,0 +1 @@ +golang() diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go new file mode 100644 index 0000000000..c0bd44a869 --- /dev/null +++ b/p2p/host/autonat/proto.go @@ -0,0 +1,24 @@ +package autonat + +import ( + pb "github.com/libp2p/go-libp2p-autonat/pb" + + logging "github.com/ipfs/go-log" + ma "github.com/multiformats/go-multiaddr" +) + +var log = logging.Logger("autonat-svc") + +func newDialResponseOK(addr ma.Multiaddr) *pb.Message_DialResponse { + dr := new(pb.Message_DialResponse) + dr.Status = pb.Message_OK.Enum() + dr.Addr = addr.Bytes() + return dr +} + +func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Message_DialResponse { + dr := new(pb.Message_DialResponse) + dr.Status = status.Enum() + dr.StatusText = &text + return dr +} diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go new file mode 100644 index 0000000000..e523af69f6 --- /dev/null +++ b/p2p/host/autonat/svc.go @@ -0,0 +1,215 @@ +package autonat + +import ( + "context" + "sync" + "time" + + pb "github.com/libp2p/go-libp2p-autonat/pb" + + ggio "github.com/gogo/protobuf/io" + libp2p "github.com/libp2p/go-libp2p" + autonat "github.com/libp2p/go-libp2p-autonat" + host "github.com/libp2p/go-libp2p-host" + inet "github.com/libp2p/go-libp2p-net" + peer "github.com/libp2p/go-libp2p-peer" + pstore "github.com/libp2p/go-libp2p-peerstore" + ma "github.com/multiformats/go-multiaddr" +) + +const P_CIRCUIT = 290 + +var ( + AutoNATServiceDialTimeout = 42 * time.Second + AutoNATServiceResetInterval = 1 * time.Minute + + AutoNATServiceThrottle = 3 +) + +// AutoNATService provides NAT autodetection services to other peers +type AutoNATService struct { + ctx context.Context + dialer host.Host + + // rate limiter + mx sync.Mutex + reqs map[peer.ID]int +} + +// NewAutoNATService creates a new AutoNATService instance attached to a host +func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) (*AutoNATService, error) { + opts = append(opts, libp2p.NoListenAddrs) + dialer, err := libp2p.New(ctx, opts...) + if err != nil { + return nil, err + } + + as := &AutoNATService{ + ctx: ctx, + dialer: dialer, + reqs: make(map[peer.ID]int), + } + h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) + + go as.resetRateLimiter() + + return as, nil +} + +func (as *AutoNATService) handleStream(s inet.Stream) { + defer s.Close() + + pid := s.Conn().RemotePeer() + log.Debugf("New stream from %s", pid.Pretty()) + + r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) + w := ggio.NewDelimitedWriter(s) + + var req pb.Message + var res pb.Message + + err := r.ReadMsg(&req) + if err != nil { + log.Debugf("Error reading message from %s: %s", pid.Pretty(), err.Error()) + s.Reset() + return + } + + t := req.GetType() + if t != pb.Message_DIAL { + log.Debugf("Unexpected message from %s: %s (%d)", pid.Pretty(), t.String(), t) + s.Reset() + return + } + + dr := as.handleDial(pid, s.Conn().RemoteMultiaddr(), req.GetDial().GetPeer()) + res.Type = pb.Message_DIAL_RESPONSE.Enum() + res.DialResponse = dr + + err = w.WriteMsg(&res) + if err != nil { + log.Debugf("Error writing response to %s: %s", pid.Pretty(), err.Error()) + s.Reset() + return + } +} + +func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { + if mpi == nil { + return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") + } + + mpid := mpi.GetId() + if mpid != nil { + mp, err := peer.IDFromBytes(mpid) + if err != nil { + return newDialResponseError(pb.Message_E_BAD_REQUEST, "bad peer id") + } + + if mp != p { + return newDialResponseError(pb.Message_E_BAD_REQUEST, "peer id mismatch") + } + } + + addrs := make([]ma.Multiaddr, 0) + seen := make(map[string]struct{}) + + // add observed addr to the list of addresses to dial + if !as.skipDial(obsaddr) { + addrs = append(addrs, obsaddr) + seen[obsaddr.String()] = struct{}{} + } + + for _, maddr := range mpi.GetAddrs() { + addr, err := ma.NewMultiaddrBytes(maddr) + if err != nil { + log.Debugf("Error parsing multiaddr: %s", err.Error()) + continue + } + + if as.skipDial(addr) { + continue + } + + str := addr.String() + _, ok := seen[str] + if ok { + continue + } + + addrs = append(addrs, addr) + seen[str] = struct{}{} + } + + if len(addrs) == 0 { + return newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses") + } + + return as.doDial(pstore.PeerInfo{ID: p, Addrs: addrs}) +} + +func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { + // skip relay addresses + _, err := addr.ValueForProtocol(P_CIRCUIT) + if err == nil { + return true + } + + // skip private network (unroutable) addresses + if !autonat.IsPublicAddr(addr) { + return true + } + + return false +} + +func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { + // rate limit check + as.mx.Lock() + count := as.reqs[pi.ID] + if count >= AutoNATServiceThrottle { + as.mx.Unlock() + return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") + } + as.reqs[pi.ID] = count + 1 + as.mx.Unlock() + + ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) + defer cancel() + + err := as.dialer.Connect(ctx, pi) + if err != nil { + log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) + // wait for the context to timeout to avoid leaking timing information + // this renders the service ineffective as a port scanner + <-ctx.Done() + return newDialResponseError(pb.Message_E_DIAL_ERROR, "dial failed") + } + + conns := as.dialer.Network().ConnsToPeer(pi.ID) + if len(conns) == 0 { + log.Errorf("supposedly connected to %s, but no connection to peer", pi.ID.Pretty()) + return newDialResponseError(pb.Message_E_INTERNAL_ERROR, "internal service error") + } + + ra := conns[0].RemoteMultiaddr() + as.dialer.Network().ClosePeer(pi.ID) + return newDialResponseOK(ra) +} + +func (as *AutoNATService) resetRateLimiter() { + ticker := time.NewTicker(AutoNATServiceResetInterval) + defer ticker.Stop() + + for { + select { + case <-ticker.C: + as.mx.Lock() + as.reqs = make(map[peer.ID]int) + as.mx.Unlock() + + case <-as.ctx.Done(): + return + } + } +} diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go new file mode 100644 index 0000000000..65b2a9dd74 --- /dev/null +++ b/p2p/host/autonat/svc_test.go @@ -0,0 +1,132 @@ +package autonat + +import ( + "context" + "net" + "testing" + "time" + + libp2p "github.com/libp2p/go-libp2p" + autonat "github.com/libp2p/go-libp2p-autonat" + host "github.com/libp2p/go-libp2p-host" + pstore "github.com/libp2p/go-libp2p-peerstore" +) + +func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATService) { + h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) + if err != nil { + t.Fatal(err) + } + + as, err := NewAutoNATService(ctx, h) + if err != nil { + t.Fatal(err) + } + + return h, as +} + +func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, autonat.AutoNATClient) { + h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) + if err != nil { + t.Fatal(err) + } + + cli := autonat.NewAutoNATClient(h) + return h, cli +} + +func connect(t *testing.T, a, b host.Host) { + pinfo := pstore.PeerInfo{ID: a.ID(), Addrs: a.Addrs()} + err := b.Connect(context.Background(), pinfo) + if err != nil { + t.Fatal(err) + } +} + +// Note: these tests assume that the host has only private inet addresses! +func TestAutoNATServiceDialError(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save := AutoNATServiceDialTimeout + AutoNATServiceDialTimeout = 1 * time.Second + + hs, _ := makeAutoNATService(ctx, t) + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.DialBack(ctx, hs.ID()) + if err == nil { + t.Fatal("Dial back succeeded unexpectedly!") + } + + if !autonat.IsDialError(err) { + t.Fatal(err) + } + + AutoNATServiceDialTimeout = save +} + +func TestAutoNATServiceDialSuccess(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save := autonat.Private4 + autonat.Private4 = []*net.IPNet{} + + hs, _ := makeAutoNATService(ctx, t) + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.DialBack(ctx, hs.ID()) + if err != nil { + t.Fatalf("Dial back failed: %s", err.Error()) + } + + autonat.Private4 = save +} + +func TestAutoNATServiceDialRateLimiter(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save1 := AutoNATServiceDialTimeout + AutoNATServiceDialTimeout = 1 * time.Second + save2 := AutoNATServiceResetInterval + AutoNATServiceResetInterval = 1 * time.Second + save3 := AutoNATServiceThrottle + AutoNATServiceThrottle = 1 + save4 := autonat.Private4 + autonat.Private4 = []*net.IPNet{} + + hs, _ := makeAutoNATService(ctx, t) + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.DialBack(ctx, hs.ID()) + if err != nil { + t.Fatal(err) + } + + _, err = ac.DialBack(ctx, hs.ID()) + if err == nil { + t.Fatal("Dial back succeeded unexpectedly!") + } + + if !autonat.IsDialRefused(err) { + t.Fatal(err) + } + + time.Sleep(2 * time.Second) + + _, err = ac.DialBack(ctx, hs.ID()) + if err != nil { + t.Fatal(err) + } + + AutoNATServiceDialTimeout = save1 + AutoNATServiceResetInterval = save2 + AutoNATServiceThrottle = save3 + autonat.Private4 = save4 +} From b11fa1c0604446c90f32cdf5429b095d776b9f50 Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 16:33:22 +0300 Subject: [PATCH 051/132] move addr.go to go-multiaddr-net --- p2p/host/autonat/addr.go | 71 ---------------------------------------- 1 file changed, 71 deletions(-) delete mode 100644 p2p/host/autonat/addr.go diff --git a/p2p/host/autonat/addr.go b/p2p/host/autonat/addr.go deleted file mode 100644 index d653914150..0000000000 --- a/p2p/host/autonat/addr.go +++ /dev/null @@ -1,71 +0,0 @@ -package autonat - -import ( - "net" - - ma "github.com/multiformats/go-multiaddr" -) - -var Private4, Private6 []*net.IPNet -var privateCIDR4 = []string{ - // localhost - "127.0.0.0/8", - // private networks - "10.0.0.0/8", - "100.64.0.0/10", - "172.16.0.0/12", - "192.168.0.0/16", - // link local - "169.254.0.0/16", -} -var privateCIDR6 = []string{ - // localhost - "::1/128", - // ULA reserved - "fc00::/7", - // link local - "fe80::/10", -} - -func init() { - Private4 = parsePrivateCIDR(privateCIDR4) - Private6 = parsePrivateCIDR(privateCIDR6) -} - -func parsePrivateCIDR(cidrs []string) []*net.IPNet { - ipnets := make([]*net.IPNet, len(cidrs)) - for i, cidr := range cidrs { - _, ipnet, err := net.ParseCIDR(cidr) - if err != nil { - panic(err) - } - ipnets[i] = ipnet - } - return ipnets -} - -// IsPublicAddr retruns true if the IP part of the multiaddr is not in a private network -func IsPublicAddr(a ma.Multiaddr) bool { - ip, err := a.ValueForProtocol(ma.P_IP4) - if err == nil { - return !inAddrRange(ip, Private4) - } - - ip, err = a.ValueForProtocol(ma.P_IP6) - if err == nil { - return !inAddrRange(ip, Private6) - } - - return false -} - -func inAddrRange(s string, ipnets []*net.IPNet) bool { - ip := net.ParseIP(s) - for _, ipnet := range ipnets { - if ipnet.Contains(ip) { - return true - } - } - - return false -} From 605e4e6ebe6b726a0f96255a9f57e52fd6e7de36 Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 16 Oct 2018 16:48:46 +0300 Subject: [PATCH 052/132] IsPublicAddr lives in multiaddr-net --- p2p/host/autonat/svc.go | 3 ++- p2p/host/autonat/svc_test.go | 13 +++++++------ 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index e523af69f6..b874b7d1a6 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -15,6 +15,7 @@ import ( peer "github.com/libp2p/go-libp2p-peer" pstore "github.com/libp2p/go-libp2p-peerstore" ma "github.com/multiformats/go-multiaddr" + manet "github.com/multiformats/go-multiaddr-net" ) const P_CIRCUIT = 290 @@ -156,7 +157,7 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { } // skip private network (unroutable) addresses - if !autonat.IsPublicAddr(addr) { + if !manet.IsPublicAddr(addr) { return true } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 65b2a9dd74..9c8d969188 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -10,6 +10,7 @@ import ( autonat "github.com/libp2p/go-libp2p-autonat" host "github.com/libp2p/go-libp2p-host" pstore "github.com/libp2p/go-libp2p-peerstore" + manet "github.com/multiformats/go-multiaddr-net" ) func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATService) { @@ -72,8 +73,8 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save := autonat.Private4 - autonat.Private4 = []*net.IPNet{} + save := manet.Private4 + manet.Private4 = []*net.IPNet{} hs, _ := makeAutoNATService(ctx, t) hc, ac := makeAutoNATClient(ctx, t) @@ -84,7 +85,7 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { t.Fatalf("Dial back failed: %s", err.Error()) } - autonat.Private4 = save + manet.Private4 = save } func TestAutoNATServiceDialRateLimiter(t *testing.T) { @@ -97,8 +98,8 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceResetInterval = 1 * time.Second save3 := AutoNATServiceThrottle AutoNATServiceThrottle = 1 - save4 := autonat.Private4 - autonat.Private4 = []*net.IPNet{} + save4 := manet.Private4 + manet.Private4 = []*net.IPNet{} hs, _ := makeAutoNATService(ctx, t) hc, ac := makeAutoNATClient(ctx, t) @@ -128,5 +129,5 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceDialTimeout = save1 AutoNATServiceResetInterval = save2 AutoNATServiceThrottle = save3 - autonat.Private4 = save4 + manet.Private4 = save4 } From 9a4502abb523346d1c005142ecb654def0f66024 Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 17 Oct 2018 23:51:32 +0300 Subject: [PATCH 053/132] add address factory --- p2p/host/autonat/autonat.go | 20 ++++++++++++++------ p2p/host/autonat/client.go | 16 ++++++++++++---- 2 files changed, 26 insertions(+), 10 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 1eace01770..176c77a2eb 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -48,6 +48,8 @@ type AmbientAutoNAT struct { ctx context.Context host host.Host + getAddrs GetAddrs + mx sync.Mutex peers map[peer.ID]struct{} status NATStatus @@ -61,12 +63,18 @@ type AmbientAutoNAT struct { } // NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host -func NewAutoNAT(ctx context.Context, h host.Host) AutoNAT { +func NewAutoNAT(ctx context.Context, h host.Host, ga ...GetAddrs) AutoNAT { + getAddrs := h.Addrs + if len(ga) > 0 { + getAddrs = ga[0] + } + as := &AmbientAutoNAT{ - ctx: ctx, - host: h, - peers: make(map[peer.ID]struct{}), - status: NATStatusUnknown, + ctx: ctx, + host: h, + getAddrs: getAddrs, + peers: make(map[peer.ID]struct{}), + status: NATStatusUnknown, } h.Network().Notify(as) @@ -123,7 +131,7 @@ func (as *AmbientAutoNAT) autodetect() { return } - cli := NewAutoNATClient(as.host) + cli := NewAutoNATClient(as.host, as.getAddrs) failures := 0 for _, p := range peers { diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 468bc68106..96c5255faa 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -27,13 +27,21 @@ type AutoNATError struct { Text string } +// GetAddrs is a function that returns the addresses to dial back +type GetAddrs func() []ma.Multiaddr + // NewAutoNATClient creates a fresh instance of an AutoNATClient -func NewAutoNATClient(h host.Host) AutoNATClient { - return &client{h: h} +func NewAutoNATClient(h host.Host, ga ...GetAddrs) AutoNATClient { + getAddrs := h.Addrs + if len(ga) > 0 { + getAddrs = ga[0] + } + return &client{h: h, getAddrs: getAddrs} } type client struct { - h host.Host + h host.Host + getAddrs GetAddrs } func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) { @@ -46,7 +54,7 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) w := ggio.NewDelimitedWriter(s) - req := newDialMessage(pstore.PeerInfo{ID: c.h.ID(), Addrs: c.h.Addrs()}) + req := newDialMessage(pstore.PeerInfo{ID: c.h.ID(), Addrs: c.getAddrs()}) err = w.WriteMsg(req) if err != nil { return nil, err From 00f3153d29959965f0564042ebdbf08cb5a5c3e3 Mon Sep 17 00:00:00 2001 From: vyzo Date: Thu, 18 Oct 2018 18:05:26 +0300 Subject: [PATCH 054/132] make getAddrs a static argument (not variadic) --- p2p/host/autonat/autonat.go | 8 ++++---- p2p/host/autonat/autonat_test.go | 2 +- p2p/host/autonat/client.go | 8 ++++---- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 176c77a2eb..0aa987ca63 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -63,10 +63,10 @@ type AmbientAutoNAT struct { } // NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host -func NewAutoNAT(ctx context.Context, h host.Host, ga ...GetAddrs) AutoNAT { - getAddrs := h.Addrs - if len(ga) > 0 { - getAddrs = ga[0] +// If getAddrs is nil, h.Addrs will be used +func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { + if getAddrs == nil { + getAddrs = h.Addrs } as := &AmbientAutoNAT{ diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 6170d01d19..aa8d879135 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -72,7 +72,7 @@ func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Mes func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) - a := NewAutoNAT(ctx, h) + a := NewAutoNAT(ctx, h, nil) a.(*AmbientAutoNAT).peers[ash.ID()] = struct{}{} return h, a diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 96c5255faa..0fd665d3df 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -31,10 +31,10 @@ type AutoNATError struct { type GetAddrs func() []ma.Multiaddr // NewAutoNATClient creates a fresh instance of an AutoNATClient -func NewAutoNATClient(h host.Host, ga ...GetAddrs) AutoNATClient { - getAddrs := h.Addrs - if len(ga) > 0 { - getAddrs = ga[0] +// If getAddrs is nil, h.Addrs will be used +func NewAutoNATClient(h host.Host, getAddrs GetAddrs) AutoNATClient { + if getAddrs == nil { + getAddrs = h.Addrs } return &client{h: h, getAddrs: getAddrs} } From c98eb14a9004ed80fc1b86f10230a99a6dc7c037 Mon Sep 17 00:00:00 2001 From: vyzo Date: Thu, 25 Oct 2018 11:56:27 +0300 Subject: [PATCH 055/132] update test for AutoNATClient constructor change --- p2p/host/autonat/svc_test.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 9c8d969188..c0a676dece 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -33,7 +33,7 @@ func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, autonat.Au t.Fatal(err) } - cli := autonat.NewAutoNATClient(h) + cli := autonat.NewAutoNATClient(h, nil) return h, cli } From 179ba24cab82df352236f558a7f783dc959dbc47 Mon Sep 17 00:00:00 2001 From: vyzo Date: Thu, 20 Dec 2018 18:58:13 +0200 Subject: [PATCH 056/132] track autonat peer addresses --- p2p/host/autonat/autonat.go | 28 +++++++++++++++------------- p2p/host/autonat/autonat_test.go | 2 +- p2p/host/autonat/notify.go | 2 +- 3 files changed, 17 insertions(+), 15 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 0aa987ca63..e0418c45f8 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -10,6 +10,7 @@ import ( host "github.com/libp2p/go-libp2p-host" inet "github.com/libp2p/go-libp2p-net" peer "github.com/libp2p/go-libp2p-peer" + pstore "github.com/libp2p/go-libp2p-peerstore" ma "github.com/multiformats/go-multiaddr" ) @@ -51,7 +52,7 @@ type AmbientAutoNAT struct { getAddrs GetAddrs mx sync.Mutex - peers map[peer.ID]struct{} + peers map[peer.ID][]ma.Multiaddr status NATStatus addr ma.Multiaddr // Reflects the confidence on of the NATStatus being private, as a single @@ -73,7 +74,7 @@ func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { ctx: ctx, host: h, getAddrs: getAddrs, - peers: make(map[peer.ID]struct{}), + peers: make(map[peer.ID][]ma.Multiaddr), status: NATStatusUnknown, } @@ -134,14 +135,15 @@ func (as *AmbientAutoNAT) autodetect() { cli := NewAutoNATClient(as.host, as.getAddrs) failures := 0 - for _, p := range peers { + for _, pi := range peers { ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) - a, err := cli.DialBack(ctx, p) + as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, pstore.TempAddrTTL) + a, err := cli.DialBack(ctx, pi.ID) cancel() switch { case err == nil: - log.Debugf("NAT status is public; address through %s: %s", p.Pretty(), a.String()) + log.Debugf("NAT status is public; address through %s: %s", pi.ID.Pretty(), a.String()) as.mx.Lock() as.addr = a as.status = NATStatusPublic @@ -150,7 +152,7 @@ func (as *AmbientAutoNAT) autodetect() { return case IsDialError(err): - log.Debugf("dial error through %s: %s", p.Pretty(), err.Error()) + log.Debugf("dial error through %s: %s", pi.ID.Pretty(), err.Error()) failures++ if failures >= 3 || as.confidence >= 3 { // 3 times is enemy action log.Debugf("NAT status is private") @@ -162,7 +164,7 @@ func (as *AmbientAutoNAT) autodetect() { } default: - log.Debugf("Error dialing through %s: %s", p.Pretty(), err.Error()) + log.Debugf("Error dialing through %s: %s", pi.ID.Pretty(), err.Error()) } } @@ -179,7 +181,7 @@ func (as *AmbientAutoNAT) autodetect() { as.mx.Unlock() } -func (as *AmbientAutoNAT) getPeers() []peer.ID { +func (as *AmbientAutoNAT) getPeers() []pstore.PeerInfo { as.mx.Lock() defer as.mx.Unlock() @@ -187,13 +189,13 @@ func (as *AmbientAutoNAT) getPeers() []peer.ID { return nil } - var connected, others []peer.ID + var connected, others []pstore.PeerInfo - for p := range as.peers { + for p, addrs := range as.peers { if as.host.Network().Connectedness(p) == inet.Connected { - connected = append(connected, p) + connected = append(connected, pstore.PeerInfo{ID: p, Addrs: addrs}) } else { - others = append(others, p) + others = append(others, pstore.PeerInfo{ID: p, Addrs: addrs}) } } @@ -207,7 +209,7 @@ func (as *AmbientAutoNAT) getPeers() []peer.ID { } } -func shufflePeers(peers []peer.ID) { +func shufflePeers(peers []pstore.PeerInfo) { for i := range peers { j := rand.Intn(i + 1) peers[i], peers[j] = peers[j], peers[i] diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index aa8d879135..5436619846 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -73,7 +73,7 @@ func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Mes func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) a := NewAutoNAT(ctx, h, nil) - a.(*AmbientAutoNAT).peers[ash.ID()] = struct{}{} + a.(*AmbientAutoNAT).peers[ash.ID()] = ash.Addrs() return h, a } diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index ebe709baf6..69f5a6457f 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -32,7 +32,7 @@ func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { if len(protos) > 0 { log.Infof("Discovered AutoNAT peer %s", p.Pretty()) as.mx.Lock() - as.peers[p] = struct{}{} + as.peers[p] = as.host.Peerstore().Addrs(p) as.mx.Unlock() } }() From fb9be136d83e39b977253eda87a12db4afc01c3d Mon Sep 17 00:00:00 2001 From: Jakub Sztandera Date: Mon, 18 Feb 2019 15:53:06 +0100 Subject: [PATCH 057/132] gx publish 1.0.7 --- p2p/host/autonat/pb/Makefile | 6 + p2p/host/autonat/pb/autonat.pb.go | 191 ++++++++++++++++++++---------- 2 files changed, 132 insertions(+), 65 deletions(-) create mode 100644 p2p/host/autonat/pb/Makefile diff --git a/p2p/host/autonat/pb/Makefile b/p2p/host/autonat/pb/Makefile new file mode 100644 index 0000000000..dd21e878f8 --- /dev/null +++ b/p2p/host/autonat/pb/Makefile @@ -0,0 +1,6 @@ +pbgos := $(patsubst %.proto,%.pb.go,$(wildcard *.proto)) + +all: $(pbgos) + +%.pb.go: %.proto + protoc --gogofast_out=. --proto_path=$(GOPATH)/src:. $< diff --git a/p2p/host/autonat/pb/autonat.pb.go b/p2p/host/autonat/pb/autonat.pb.go index 3f2db2e1a1..3617b4615a 100644 --- a/p2p/host/autonat/pb/autonat.pb.go +++ b/p2p/host/autonat/pb/autonat.pb.go @@ -3,11 +3,12 @@ package autonat_pb -import proto "github.com/gogo/protobuf/proto" -import fmt "fmt" -import math "math" - -import io "io" +import ( + fmt "fmt" + proto "github.com/gogo/protobuf/proto" + io "io" + math "math" +) // Reference imports to suppress errors if they are not otherwise used. var _ = proto.Marshal @@ -31,6 +32,7 @@ var Message_MessageType_name = map[int32]string{ 0: "DIAL", 1: "DIAL_RESPONSE", } + var Message_MessageType_value = map[string]int32{ "DIAL": 0, "DIAL_RESPONSE": 1, @@ -41,9 +43,11 @@ func (x Message_MessageType) Enum() *Message_MessageType { *p = x return p } + func (x Message_MessageType) String() string { return proto.EnumName(Message_MessageType_name, int32(x)) } + func (x *Message_MessageType) UnmarshalJSON(data []byte) error { value, err := proto.UnmarshalJSONEnum(Message_MessageType_value, data, "Message_MessageType") if err != nil { @@ -52,8 +56,9 @@ func (x *Message_MessageType) UnmarshalJSON(data []byte) error { *x = Message_MessageType(value) return nil } + func (Message_MessageType) EnumDescriptor() ([]byte, []int) { - return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 0} + return fileDescriptor_a04e278ef61ac07a, []int{0, 0} } type Message_ResponseStatus int32 @@ -73,6 +78,7 @@ var Message_ResponseStatus_name = map[int32]string{ 200: "E_BAD_REQUEST", 300: "E_INTERNAL_ERROR", } + var Message_ResponseStatus_value = map[string]int32{ "OK": 0, "E_DIAL_ERROR": 100, @@ -86,9 +92,11 @@ func (x Message_ResponseStatus) Enum() *Message_ResponseStatus { *p = x return p } + func (x Message_ResponseStatus) String() string { return proto.EnumName(Message_ResponseStatus_name, int32(x)) } + func (x *Message_ResponseStatus) UnmarshalJSON(data []byte) error { value, err := proto.UnmarshalJSONEnum(Message_ResponseStatus_value, data, "Message_ResponseStatus") if err != nil { @@ -97,8 +105,9 @@ func (x *Message_ResponseStatus) UnmarshalJSON(data []byte) error { *x = Message_ResponseStatus(value) return nil } + func (Message_ResponseStatus) EnumDescriptor() ([]byte, []int) { - return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 1} + return fileDescriptor_a04e278ef61ac07a, []int{0, 1} } type Message struct { @@ -114,7 +123,7 @@ func (m *Message) Reset() { *m = Message{} } func (m *Message) String() string { return proto.CompactTextString(m) } func (*Message) ProtoMessage() {} func (*Message) Descriptor() ([]byte, []int) { - return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0} + return fileDescriptor_a04e278ef61ac07a, []int{0} } func (m *Message) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -131,8 +140,8 @@ func (m *Message) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { return b[:n], nil } } -func (dst *Message) XXX_Merge(src proto.Message) { - xxx_messageInfo_Message.Merge(dst, src) +func (m *Message) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message.Merge(m, src) } func (m *Message) XXX_Size() int { return m.Size() @@ -176,7 +185,7 @@ func (m *Message_PeerInfo) Reset() { *m = Message_PeerInfo{} } func (m *Message_PeerInfo) String() string { return proto.CompactTextString(m) } func (*Message_PeerInfo) ProtoMessage() {} func (*Message_PeerInfo) Descriptor() ([]byte, []int) { - return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 0} + return fileDescriptor_a04e278ef61ac07a, []int{0, 0} } func (m *Message_PeerInfo) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -193,8 +202,8 @@ func (m *Message_PeerInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, er return b[:n], nil } } -func (dst *Message_PeerInfo) XXX_Merge(src proto.Message) { - xxx_messageInfo_Message_PeerInfo.Merge(dst, src) +func (m *Message_PeerInfo) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message_PeerInfo.Merge(m, src) } func (m *Message_PeerInfo) XXX_Size() int { return m.Size() @@ -230,7 +239,7 @@ func (m *Message_Dial) Reset() { *m = Message_Dial{} } func (m *Message_Dial) String() string { return proto.CompactTextString(m) } func (*Message_Dial) ProtoMessage() {} func (*Message_Dial) Descriptor() ([]byte, []int) { - return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 1} + return fileDescriptor_a04e278ef61ac07a, []int{0, 1} } func (m *Message_Dial) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -247,8 +256,8 @@ func (m *Message_Dial) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) return b[:n], nil } } -func (dst *Message_Dial) XXX_Merge(src proto.Message) { - xxx_messageInfo_Message_Dial.Merge(dst, src) +func (m *Message_Dial) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message_Dial.Merge(m, src) } func (m *Message_Dial) XXX_Size() int { return m.Size() @@ -279,7 +288,7 @@ func (m *Message_DialResponse) Reset() { *m = Message_DialResponse{} } func (m *Message_DialResponse) String() string { return proto.CompactTextString(m) } func (*Message_DialResponse) ProtoMessage() {} func (*Message_DialResponse) Descriptor() ([]byte, []int) { - return fileDescriptor_autonat_bd0ec7a019b57e9d, []int{0, 2} + return fileDescriptor_a04e278ef61ac07a, []int{0, 2} } func (m *Message_DialResponse) XXX_Unmarshal(b []byte) error { return m.Unmarshal(b) @@ -296,8 +305,8 @@ func (m *Message_DialResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte return b[:n], nil } } -func (dst *Message_DialResponse) XXX_Merge(src proto.Message) { - xxx_messageInfo_Message_DialResponse.Merge(dst, src) +func (m *Message_DialResponse) XXX_Merge(src proto.Message) { + xxx_messageInfo_Message_DialResponse.Merge(m, src) } func (m *Message_DialResponse) XXX_Size() int { return m.Size() @@ -330,13 +339,44 @@ func (m *Message_DialResponse) GetAddr() []byte { } func init() { + proto.RegisterEnum("autonat.pb.Message_MessageType", Message_MessageType_name, Message_MessageType_value) + proto.RegisterEnum("autonat.pb.Message_ResponseStatus", Message_ResponseStatus_name, Message_ResponseStatus_value) proto.RegisterType((*Message)(nil), "autonat.pb.Message") proto.RegisterType((*Message_PeerInfo)(nil), "autonat.pb.Message.PeerInfo") proto.RegisterType((*Message_Dial)(nil), "autonat.pb.Message.Dial") proto.RegisterType((*Message_DialResponse)(nil), "autonat.pb.Message.DialResponse") - proto.RegisterEnum("autonat.pb.Message_MessageType", Message_MessageType_name, Message_MessageType_value) - proto.RegisterEnum("autonat.pb.Message_ResponseStatus", Message_ResponseStatus_name, Message_ResponseStatus_value) } + +func init() { proto.RegisterFile("autonat.proto", fileDescriptor_a04e278ef61ac07a) } + +var fileDescriptor_a04e278ef61ac07a = []byte{ + // 372 bytes of a gzipped FileDescriptorProto + 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x90, 0xcf, 0x8a, 0xda, 0x50, + 0x14, 0xc6, 0xbd, 0x31, 0xb5, 0xf6, 0x18, 0xc3, 0xed, 0xa1, 0x85, 0x20, 0x25, 0x0d, 0x59, 0x49, + 0x29, 0x22, 0x76, 0x53, 0xba, 0x53, 0x72, 0x0b, 0xd2, 0x56, 0xed, 0x49, 0x5c, 0x87, 0x94, 0xdc, + 0x0e, 0x01, 0x31, 0x21, 0x89, 0x30, 0x6e, 0xe6, 0x89, 0x66, 0x3b, 0xef, 0xe0, 0x72, 0x1e, 0x61, + 0xf0, 0x49, 0x86, 0x5c, 0xa3, 0xa3, 0xe0, 0xac, 0xce, 0x1f, 0x7e, 0xdf, 0x39, 0x1f, 0x1f, 0x74, + 0xa3, 0x4d, 0x99, 0xae, 0xa3, 0x72, 0x90, 0xe5, 0x69, 0x99, 0x22, 0x9c, 0xc6, 0x7f, 0xee, 0x83, + 0x0e, 0x6f, 0xff, 0xc8, 0xa2, 0x88, 0x6e, 0x24, 0x7e, 0x03, 0xbd, 0xdc, 0x66, 0xd2, 0x62, 0x0e, + 0xeb, 0x9b, 0xa3, 0xcf, 0x83, 0x17, 0x6c, 0x50, 0x23, 0xc7, 0x1a, 0x6c, 0x33, 0x49, 0x0a, 0xc6, + 0xaf, 0xa0, 0xc7, 0x49, 0xb4, 0xb2, 0x34, 0x87, 0xf5, 0x3b, 0x23, 0xeb, 0x9a, 0xc8, 0x4b, 0xa2, + 0x15, 0x29, 0x0a, 0x3d, 0x30, 0xaa, 0x4a, 0xb2, 0xc8, 0xd2, 0x75, 0x21, 0xad, 0xa6, 0x52, 0x39, + 0xaf, 0xaa, 0x6a, 0x8e, 0x2e, 0x54, 0xbd, 0x21, 0xb4, 0x17, 0x52, 0xe6, 0xd3, 0xf5, 0xff, 0x14, + 0x4d, 0xd0, 0x92, 0x58, 0x59, 0x36, 0x48, 0x4b, 0x62, 0xfc, 0x00, 0x6f, 0xa2, 0x38, 0xce, 0x0b, + 0x4b, 0x73, 0x9a, 0x7d, 0x83, 0x0e, 0x43, 0xef, 0x3b, 0xe8, 0xd5, 0x3d, 0x1c, 0x82, 0x9e, 0x49, + 0x99, 0x2b, 0xbe, 0x33, 0xfa, 0x74, 0xed, 0xef, 0xf1, 0x32, 0x29, 0xb2, 0x77, 0x07, 0xc6, 0xb9, + 0x13, 0xfc, 0x01, 0xad, 0xa2, 0x8c, 0xca, 0x4d, 0x51, 0xc7, 0xe4, 0x5e, 0xbb, 0x71, 0xa4, 0x7d, + 0x45, 0x52, 0xad, 0x40, 0x1b, 0xe0, 0xd0, 0x05, 0xf2, 0xb6, 0x54, 0x89, 0xbd, 0xa3, 0xb3, 0x0d, + 0x22, 0xe8, 0x95, 0x5d, 0x95, 0x8a, 0x41, 0xaa, 0x77, 0xbf, 0x40, 0xe7, 0x2c, 0x74, 0x6c, 0x83, + 0xee, 0x4d, 0xc7, 0xbf, 0x79, 0x03, 0xdf, 0x43, 0xb7, 0xea, 0x42, 0x12, 0xfe, 0x62, 0x3e, 0xf3, + 0x05, 0x67, 0x6e, 0x02, 0xe6, 0xe5, 0x67, 0x6c, 0x81, 0x36, 0xff, 0xc5, 0x1b, 0xc8, 0xc1, 0x10, + 0xa1, 0xc2, 0x05, 0xd1, 0x9c, 0x78, 0x8c, 0x08, 0x66, 0xbd, 0x21, 0xf1, 0x73, 0xe9, 0x0b, 0x8f, + 0x4b, 0x44, 0xe8, 0x8a, 0x70, 0x32, 0xf6, 0x42, 0x12, 0x7f, 0x97, 0xc2, 0x0f, 0xf8, 0x8e, 0xe1, + 0x47, 0xe0, 0x22, 0x9c, 0xce, 0x02, 0x41, 0xb3, 0x93, 0xfa, 0x5e, 0x9b, 0x18, 0xbb, 0xbd, 0xcd, + 0x1e, 0xf7, 0x36, 0x7b, 0xda, 0xdb, 0xec, 0x39, 0x00, 0x00, 0xff, 0xff, 0x8e, 0xe2, 0x93, 0x4e, + 0x61, 0x02, 0x00, 0x00, +} + func (m *Message) Marshal() (dAtA []byte, err error) { size := m.Size() dAtA = make([]byte, size) @@ -497,6 +537,9 @@ func encodeVarintAutonat(dAtA []byte, offset int, v uint64) int { return offset + 1 } func (m *Message) Size() (n int) { + if m == nil { + return 0 + } var l int _ = l if m.Type != nil { @@ -517,6 +560,9 @@ func (m *Message) Size() (n int) { } func (m *Message_PeerInfo) Size() (n int) { + if m == nil { + return 0 + } var l int _ = l if m.Id != nil { @@ -536,6 +582,9 @@ func (m *Message_PeerInfo) Size() (n int) { } func (m *Message_Dial) Size() (n int) { + if m == nil { + return 0 + } var l int _ = l if m.Peer != nil { @@ -549,6 +598,9 @@ func (m *Message_Dial) Size() (n int) { } func (m *Message_DialResponse) Size() (n int) { + if m == nil { + return 0 + } var l int _ = l if m.Status != nil { @@ -596,7 +648,7 @@ func (m *Message) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - wire |= (uint64(b) & 0x7F) << shift + wire |= uint64(b&0x7F) << shift if b < 0x80 { break } @@ -624,7 +676,7 @@ func (m *Message) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - v |= (Message_MessageType(b) & 0x7F) << shift + v |= Message_MessageType(b&0x7F) << shift if b < 0x80 { break } @@ -644,7 +696,7 @@ func (m *Message) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - msglen |= (int(b) & 0x7F) << shift + msglen |= int(b&0x7F) << shift if b < 0x80 { break } @@ -653,6 +705,9 @@ func (m *Message) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + msglen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -677,7 +732,7 @@ func (m *Message) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - msglen |= (int(b) & 0x7F) << shift + msglen |= int(b&0x7F) << shift if b < 0x80 { break } @@ -686,6 +741,9 @@ func (m *Message) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + msglen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -705,6 +763,9 @@ func (m *Message) Unmarshal(dAtA []byte) error { if skippy < 0 { return ErrInvalidLengthAutonat } + if (iNdEx + skippy) < 0 { + return ErrInvalidLengthAutonat + } if (iNdEx + skippy) > l { return io.ErrUnexpectedEOF } @@ -733,7 +794,7 @@ func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - wire |= (uint64(b) & 0x7F) << shift + wire |= uint64(b&0x7F) << shift if b < 0x80 { break } @@ -761,7 +822,7 @@ func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - byteLen |= (int(b) & 0x7F) << shift + byteLen |= int(b&0x7F) << shift if b < 0x80 { break } @@ -770,6 +831,9 @@ func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + byteLen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -792,7 +856,7 @@ func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - byteLen |= (int(b) & 0x7F) << shift + byteLen |= int(b&0x7F) << shift if b < 0x80 { break } @@ -801,6 +865,9 @@ func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + byteLen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -816,6 +883,9 @@ func (m *Message_PeerInfo) Unmarshal(dAtA []byte) error { if skippy < 0 { return ErrInvalidLengthAutonat } + if (iNdEx + skippy) < 0 { + return ErrInvalidLengthAutonat + } if (iNdEx + skippy) > l { return io.ErrUnexpectedEOF } @@ -844,7 +914,7 @@ func (m *Message_Dial) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - wire |= (uint64(b) & 0x7F) << shift + wire |= uint64(b&0x7F) << shift if b < 0x80 { break } @@ -872,7 +942,7 @@ func (m *Message_Dial) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - msglen |= (int(b) & 0x7F) << shift + msglen |= int(b&0x7F) << shift if b < 0x80 { break } @@ -881,6 +951,9 @@ func (m *Message_Dial) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + msglen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -900,6 +973,9 @@ func (m *Message_Dial) Unmarshal(dAtA []byte) error { if skippy < 0 { return ErrInvalidLengthAutonat } + if (iNdEx + skippy) < 0 { + return ErrInvalidLengthAutonat + } if (iNdEx + skippy) > l { return io.ErrUnexpectedEOF } @@ -928,7 +1004,7 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - wire |= (uint64(b) & 0x7F) << shift + wire |= uint64(b&0x7F) << shift if b < 0x80 { break } @@ -956,7 +1032,7 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - v |= (Message_ResponseStatus(b) & 0x7F) << shift + v |= Message_ResponseStatus(b&0x7F) << shift if b < 0x80 { break } @@ -976,7 +1052,7 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - stringLen |= (uint64(b) & 0x7F) << shift + stringLen |= uint64(b&0x7F) << shift if b < 0x80 { break } @@ -986,6 +1062,9 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + intStringLen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -1006,7 +1085,7 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { } b := dAtA[iNdEx] iNdEx++ - byteLen |= (int(b) & 0x7F) << shift + byteLen |= int(b&0x7F) << shift if b < 0x80 { break } @@ -1015,6 +1094,9 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { return ErrInvalidLengthAutonat } postIndex := iNdEx + byteLen + if postIndex < 0 { + return ErrInvalidLengthAutonat + } if postIndex > l { return io.ErrUnexpectedEOF } @@ -1032,6 +1114,9 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { if skippy < 0 { return ErrInvalidLengthAutonat } + if (iNdEx + skippy) < 0 { + return ErrInvalidLengthAutonat + } if (iNdEx + skippy) > l { return io.ErrUnexpectedEOF } @@ -1099,10 +1184,13 @@ func skipAutonat(dAtA []byte) (n int, err error) { break } } - iNdEx += length if length < 0 { return 0, ErrInvalidLengthAutonat } + iNdEx += length + if iNdEx < 0 { + return 0, ErrInvalidLengthAutonat + } return iNdEx, nil case 3: for { @@ -1131,6 +1219,9 @@ func skipAutonat(dAtA []byte) (n int, err error) { return 0, err } iNdEx = start + next + if iNdEx < 0 { + return 0, ErrInvalidLengthAutonat + } } return iNdEx, nil case 4: @@ -1149,33 +1240,3 @@ var ( ErrInvalidLengthAutonat = fmt.Errorf("proto: negative length found during unmarshaling") ErrIntOverflowAutonat = fmt.Errorf("proto: integer overflow") ) - -func init() { proto.RegisterFile("autonat.proto", fileDescriptor_autonat_bd0ec7a019b57e9d) } - -var fileDescriptor_autonat_bd0ec7a019b57e9d = []byte{ - // 372 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x90, 0xcf, 0x8a, 0xda, 0x50, - 0x14, 0xc6, 0xbd, 0x31, 0xb5, 0xf6, 0x18, 0xc3, 0xed, 0xa1, 0x85, 0x20, 0x25, 0x0d, 0x59, 0x49, - 0x29, 0x22, 0x76, 0x53, 0xba, 0x53, 0x72, 0x0b, 0xd2, 0x56, 0xed, 0x49, 0x5c, 0x87, 0x94, 0xdc, - 0x0e, 0x01, 0x31, 0x21, 0x89, 0x30, 0x6e, 0xe6, 0x89, 0x66, 0x3b, 0xef, 0xe0, 0x72, 0x1e, 0x61, - 0xf0, 0x49, 0x86, 0x5c, 0xa3, 0xa3, 0xe0, 0xac, 0xce, 0x1f, 0x7e, 0xdf, 0x39, 0x1f, 0x1f, 0x74, - 0xa3, 0x4d, 0x99, 0xae, 0xa3, 0x72, 0x90, 0xe5, 0x69, 0x99, 0x22, 0x9c, 0xc6, 0x7f, 0xee, 0x83, - 0x0e, 0x6f, 0xff, 0xc8, 0xa2, 0x88, 0x6e, 0x24, 0x7e, 0x03, 0xbd, 0xdc, 0x66, 0xd2, 0x62, 0x0e, - 0xeb, 0x9b, 0xa3, 0xcf, 0x83, 0x17, 0x6c, 0x50, 0x23, 0xc7, 0x1a, 0x6c, 0x33, 0x49, 0x0a, 0xc6, - 0xaf, 0xa0, 0xc7, 0x49, 0xb4, 0xb2, 0x34, 0x87, 0xf5, 0x3b, 0x23, 0xeb, 0x9a, 0xc8, 0x4b, 0xa2, - 0x15, 0x29, 0x0a, 0x3d, 0x30, 0xaa, 0x4a, 0xb2, 0xc8, 0xd2, 0x75, 0x21, 0xad, 0xa6, 0x52, 0x39, - 0xaf, 0xaa, 0x6a, 0x8e, 0x2e, 0x54, 0xbd, 0x21, 0xb4, 0x17, 0x52, 0xe6, 0xd3, 0xf5, 0xff, 0x14, - 0x4d, 0xd0, 0x92, 0x58, 0x59, 0x36, 0x48, 0x4b, 0x62, 0xfc, 0x00, 0x6f, 0xa2, 0x38, 0xce, 0x0b, - 0x4b, 0x73, 0x9a, 0x7d, 0x83, 0x0e, 0x43, 0xef, 0x3b, 0xe8, 0xd5, 0x3d, 0x1c, 0x82, 0x9e, 0x49, - 0x99, 0x2b, 0xbe, 0x33, 0xfa, 0x74, 0xed, 0xef, 0xf1, 0x32, 0x29, 0xb2, 0x77, 0x07, 0xc6, 0xb9, - 0x13, 0xfc, 0x01, 0xad, 0xa2, 0x8c, 0xca, 0x4d, 0x51, 0xc7, 0xe4, 0x5e, 0xbb, 0x71, 0xa4, 0x7d, - 0x45, 0x52, 0xad, 0x40, 0x1b, 0xe0, 0xd0, 0x05, 0xf2, 0xb6, 0x54, 0x89, 0xbd, 0xa3, 0xb3, 0x0d, - 0x22, 0xe8, 0x95, 0x5d, 0x95, 0x8a, 0x41, 0xaa, 0x77, 0xbf, 0x40, 0xe7, 0x2c, 0x74, 0x6c, 0x83, - 0xee, 0x4d, 0xc7, 0xbf, 0x79, 0x03, 0xdf, 0x43, 0xb7, 0xea, 0x42, 0x12, 0xfe, 0x62, 0x3e, 0xf3, - 0x05, 0x67, 0x6e, 0x02, 0xe6, 0xe5, 0x67, 0x6c, 0x81, 0x36, 0xff, 0xc5, 0x1b, 0xc8, 0xc1, 0x10, - 0xa1, 0xc2, 0x05, 0xd1, 0x9c, 0x78, 0x8c, 0x08, 0x66, 0xbd, 0x21, 0xf1, 0x73, 0xe9, 0x0b, 0x8f, - 0x4b, 0x44, 0xe8, 0x8a, 0x70, 0x32, 0xf6, 0x42, 0x12, 0x7f, 0x97, 0xc2, 0x0f, 0xf8, 0x8e, 0xe1, - 0x47, 0xe0, 0x22, 0x9c, 0xce, 0x02, 0x41, 0xb3, 0x93, 0xfa, 0x5e, 0x9b, 0x18, 0xbb, 0xbd, 0xcd, - 0x1e, 0xf7, 0x36, 0x7b, 0xda, 0xdb, 0xec, 0x39, 0x00, 0x00, 0xff, 0xff, 0x8e, 0xe2, 0x93, 0x4e, - 0x61, 0x02, 0x00, 0x00, -} From a615c186643cdd9bc9566deb325eaa57e32de3de Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 2 Mar 2019 10:18:21 +0200 Subject: [PATCH 058/132] mutex protect Status to pacify the race detector --- p2p/host/autonat/autonat.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index e0418c45f8..410d733edd 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -85,6 +85,8 @@ func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { } func (as *AmbientAutoNAT) Status() NATStatus { + as.mx.Lock() + defer as.mx.Unlock() return as.status } From 5ab68af1bcb044afbd836cd37e13f237c3d84d2c Mon Sep 17 00:00:00 2001 From: vyzo Date: Sat, 2 Mar 2019 10:18:37 +0200 Subject: [PATCH 059/132] lock peer table in test to pacify the race detector --- p2p/host/autonat/autonat_test.go | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 5436619846..9e81453675 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -73,8 +73,9 @@ func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Mes func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) a := NewAutoNAT(ctx, h, nil) + a.(*AmbientAutoNAT).mx.Lock() a.(*AmbientAutoNAT).peers[ash.ID()] = ash.Addrs() - + a.(*AmbientAutoNAT).mx.Unlock() return h, a } From 3b89938828d7baf5396f7550715e78cb55de02e1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ra=C3=BAl=20Kripalani?= Date: Mon, 11 Mar 2019 16:08:01 +0000 Subject: [PATCH 060/132] remove Jenkinsfile. --- p2p/host/autonat/ci/Jenkinsfile | 1 - 1 file changed, 1 deletion(-) delete mode 100644 p2p/host/autonat/ci/Jenkinsfile diff --git a/p2p/host/autonat/ci/Jenkinsfile b/p2p/host/autonat/ci/Jenkinsfile deleted file mode 100644 index b2067e6232..0000000000 --- a/p2p/host/autonat/ci/Jenkinsfile +++ /dev/null @@ -1 +0,0 @@ -golang() From 53419e79397b3676c975f689beac885ad20e955b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ra=C3=BAl=20Kripalani?= Date: Mon, 11 Mar 2019 16:08:01 +0000 Subject: [PATCH 061/132] remove Jenkinsfile. --- p2p/host/autonat/ci/Jenkinsfile | 1 - 1 file changed, 1 deletion(-) delete mode 100644 p2p/host/autonat/ci/Jenkinsfile diff --git a/p2p/host/autonat/ci/Jenkinsfile b/p2p/host/autonat/ci/Jenkinsfile deleted file mode 100644 index b2067e6232..0000000000 --- a/p2p/host/autonat/ci/Jenkinsfile +++ /dev/null @@ -1 +0,0 @@ -golang() From 58baf56c8ef6144ac1b22c6e14cc0b23833375ec Mon Sep 17 00:00:00 2001 From: vyzo Date: Sun, 31 Mar 2019 12:13:29 +0300 Subject: [PATCH 062/132] reduce dialback timeout to 15s --- p2p/host/autonat/svc.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index b874b7d1a6..bd704beb44 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -21,7 +21,7 @@ import ( const P_CIRCUIT = 290 var ( - AutoNATServiceDialTimeout = 42 * time.Second + AutoNATServiceDialTimeout = 15 * time.Second AutoNATServiceResetInterval = 1 * time.Minute AutoNATServiceThrottle = 3 From a79b935f6f43f4a206346772c5c2416c6954f1da Mon Sep 17 00:00:00 2001 From: vyzo Date: Mon, 1 Apr 2019 12:34:01 +0300 Subject: [PATCH 063/132] parallelize dialbacks --- p2p/host/autonat/autonat.go | 94 +++++++++++++++++++++++-------------- 1 file changed, 59 insertions(+), 35 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 410d733edd..7897ff7741 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -32,7 +32,7 @@ var ( AutoNATBootDelay = 15 * time.Second AutoNATRetryInterval = 90 * time.Second AutoNATRefreshInterval = 15 * time.Minute - AutoNATRequestTimeout = 60 * time.Second + AutoNATRequestTimeout = 30 * time.Second ) // AutoNAT is the interface for ambient NAT autodiscovery @@ -135,50 +135,74 @@ func (as *AmbientAutoNAT) autodetect() { } cli := NewAutoNATClient(as.host, as.getAddrs) - failures := 0 - - for _, pi := range peers { - ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) - as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, pstore.TempAddrTTL) - a, err := cli.DialBack(ctx, pi.ID) - cancel() - - switch { - case err == nil: - log.Debugf("NAT status is public; address through %s: %s", pi.ID.Pretty(), a.String()) - as.mx.Lock() - as.addr = a - as.status = NATStatusPublic - as.confidence = 0 - as.mx.Unlock() - return + ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) + defer cancel() + + var mx sync.Mutex + var pubaddr ma.Multiaddr + private := 0 + public := 0 - case IsDialError(err): - log.Debugf("dial error through %s: %s", pi.ID.Pretty(), err.Error()) - failures++ - if failures >= 3 || as.confidence >= 3 { // 3 times is enemy action - log.Debugf("NAT status is private") - as.mx.Lock() - as.status = NATStatusPrivate - as.confidence = 3 - as.mx.Unlock() - return + probe := 3 - as.confidence + if probe == 0 { + probe = 1 + } + if probe > len(peers) { + probe = len(peers) + } + + var wg sync.WaitGroup + + for _, pi := range peers[:probe] { + wg.Add(1) + go func(pi pstore.PeerInfo) { + as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, pstore.TempAddrTTL) + a, err := cli.DialBack(ctx, pi.ID) + + switch { + case err == nil: + log.Debugf("Dialback through %s successful; public address is %s", pi.ID.Pretty(), a.String()) + mx.Lock() + public++ + pubaddr = a + mx.Unlock() + + case IsDialError(err): + log.Debugf("Dialback through %s failed", pi.ID.Pretty()) + mx.Lock() + private++ + mx.Unlock() + + default: + log.Debugf("Dialback error through %s: %s", pi.ID.Pretty(), err) } - default: - log.Debugf("Error dialing through %s: %s", pi.ID.Pretty(), err.Error()) - } + wg.Done() + }(pi) } + wg.Wait() + as.mx.Lock() - if failures > 0 { - as.status = NATStatusPrivate - as.confidence++ + if public > 0 { + log.Debugf("NAT status is public") + as.status = NATStatusPublic + as.addr = pubaddr + if as.confidence < 3 { + as.confidence++ + } + } else if private > 0 { log.Debugf("NAT status is private") + as.status = NATStatusPrivate + as.addr = nil + if as.confidence < 3 { + as.confidence++ + } } else { + log.Debugf("NAT status is unknown") as.status = NATStatusUnknown + as.addr = nil as.confidence = 0 - log.Debugf("NAT status is unknown") } as.mx.Unlock() } From 3c9b5301c25cbf1c335cb6f8dc76b551385949df Mon Sep 17 00:00:00 2001 From: vyzo Date: Mon, 1 Apr 2019 12:39:39 +0300 Subject: [PATCH 064/132] reset confidence when there is a public<->private transition --- p2p/host/autonat/autonat.go | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 7897ff7741..2bc5fd06e5 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -186,18 +186,22 @@ func (as *AmbientAutoNAT) autodetect() { as.mx.Lock() if public > 0 { log.Debugf("NAT status is public") - as.status = NATStatusPublic - as.addr = pubaddr - if as.confidence < 3 { + if as.status == NATStatusPrivate { + as.confidence = 0 + } else if as.confidence < 3 { as.confidence++ } + as.status = NATStatusPublic + as.addr = pubaddr } else if private > 0 { log.Debugf("NAT status is private") - as.status = NATStatusPrivate - as.addr = nil - if as.confidence < 3 { + if as.status == NATStatusPublic { + as.confidence = 0 + } else if as.confidence < 3 { as.confidence++ } + as.status = NATStatusPrivate + as.addr = nil } else { log.Debugf("NAT status is unknown") as.status = NATStatusUnknown From 7c7e813051e6b47f877038efa4944dc1db0e2e4a Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 2 Apr 2019 20:15:25 +0300 Subject: [PATCH 065/132] use anonymous struct for collecting dialback results --- p2p/host/autonat/autonat.go | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 2bc5fd06e5..46d949dfe1 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -138,10 +138,12 @@ func (as *AmbientAutoNAT) autodetect() { ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) defer cancel() - var mx sync.Mutex - var pubaddr ma.Multiaddr - private := 0 - public := 0 + var result struct { + sync.Mutex + private int + public int + pubaddr ma.Multiaddr + } probe := 3 - as.confidence if probe == 0 { @@ -162,16 +164,16 @@ func (as *AmbientAutoNAT) autodetect() { switch { case err == nil: log.Debugf("Dialback through %s successful; public address is %s", pi.ID.Pretty(), a.String()) - mx.Lock() - public++ - pubaddr = a - mx.Unlock() + result.Lock() + result.public++ + result.pubaddr = a + result.Unlock() case IsDialError(err): log.Debugf("Dialback through %s failed", pi.ID.Pretty()) - mx.Lock() - private++ - mx.Unlock() + result.Lock() + result.private++ + result.Unlock() default: log.Debugf("Dialback error through %s: %s", pi.ID.Pretty(), err) @@ -184,7 +186,7 @@ func (as *AmbientAutoNAT) autodetect() { wg.Wait() as.mx.Lock() - if public > 0 { + if result.public > 0 { log.Debugf("NAT status is public") if as.status == NATStatusPrivate { as.confidence = 0 @@ -192,8 +194,8 @@ func (as *AmbientAutoNAT) autodetect() { as.confidence++ } as.status = NATStatusPublic - as.addr = pubaddr - } else if private > 0 { + as.addr = result.pubaddr + } else if result.private > 0 { log.Debugf("NAT status is private") if as.status == NATStatusPublic { as.confidence = 0 From 946f564fee058404373f8b11935866e362df0de8 Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 2 Apr 2019 20:17:18 +0300 Subject: [PATCH 066/132] add comments for status flips dropping confidence to 0 --- p2p/host/autonat/autonat.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 46d949dfe1..fcb110aee0 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -189,6 +189,7 @@ func (as *AmbientAutoNAT) autodetect() { if result.public > 0 { log.Debugf("NAT status is public") if as.status == NATStatusPrivate { + // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 } else if as.confidence < 3 { as.confidence++ @@ -198,6 +199,7 @@ func (as *AmbientAutoNAT) autodetect() { } else if result.private > 0 { log.Debugf("NAT status is private") if as.status == NATStatusPublic { + // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 } else if as.confidence < 3 { as.confidence++ From 0bdfbe083e1d4afabd05d131ee28453a887e295e Mon Sep 17 00:00:00 2001 From: vyzo Date: Tue, 2 Apr 2019 20:20:10 +0300 Subject: [PATCH 067/132] don't flip to status unknown on first faiulure, use the confidence level --- p2p/host/autonat/autonat.go | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index fcb110aee0..10fbc8f1d9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -206,11 +206,13 @@ func (as *AmbientAutoNAT) autodetect() { } as.status = NATStatusPrivate as.addr = nil + } else if as.confidence > 0 { + // don't just flip to unknown, reduce confidence first + as.confidence-- } else { log.Debugf("NAT status is unknown") as.status = NATStatusUnknown as.addr = nil - as.confidence = 0 } as.mx.Unlock() } From 7970ca46d86696e5f540e3bdfba62a079c2c8d8b Mon Sep 17 00:00:00 2001 From: vyzo Date: Wed, 3 Apr 2019 22:11:03 +0300 Subject: [PATCH 068/132] defer wg.Done --- p2p/host/autonat/autonat.go | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 10fbc8f1d9..60188c94da 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -158,6 +158,8 @@ func (as *AmbientAutoNAT) autodetect() { for _, pi := range peers[:probe] { wg.Add(1) go func(pi pstore.PeerInfo) { + defer wg.Done() + as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, pstore.TempAddrTTL) a, err := cli.DialBack(ctx, pi.ID) @@ -178,8 +180,6 @@ func (as *AmbientAutoNAT) autodetect() { default: log.Debugf("Dialback error through %s: %s", pi.ID.Pretty(), err) } - - wg.Done() }(pi) } From 17bfd15452f61430f8b30e8fa1455fcef4d0dd1b Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Tue, 9 Apr 2019 15:22:13 -0700 Subject: [PATCH 069/132] full close the autonat stream This is ridiculous but we need to fix the interfaces... --- p2p/host/autonat/svc.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index bd704beb44..febae7a407 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -58,7 +58,7 @@ func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) } func (as *AutoNATService) handleStream(s inet.Stream) { - defer s.Close() + defer inet.FullClose(s) pid := s.Conn().RemotePeer() log.Debugf("New stream from %s", pid.Pretty()) From 745284da235056b6d0efb16cce9744a2dfe90901 Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Tue, 9 Apr 2019 15:23:57 -0700 Subject: [PATCH 070/132] fully close the autonat client stream The "correct" way to do this is to send an write, close, read, then read the EOF. However, we don't really do that _anywhere_ in our code. --- p2p/host/autonat/client.go | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 0fd665d3df..aa3075e4c9 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -49,7 +49,9 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) if err != nil { return nil, err } - defer s.Close() + // Might as well just reset the stream. Once we get to this point, we + // don't care about being nice. + defer inet.FullClose(s) r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) w := ggio.NewDelimitedWriter(s) @@ -57,12 +59,14 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) req := newDialMessage(pstore.PeerInfo{ID: c.h.ID(), Addrs: c.getAddrs()}) err = w.WriteMsg(req) if err != nil { + s.Reset() return nil, err } var res pb.Message err = r.ReadMsg(&res) if err != nil { + s.Reset() return nil, err } From 0df8d18488856c53bace74b4614d3eda96419a53 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ra=C3=BAl=20Kripalani?= Date: Sun, 26 May 2019 16:41:32 +0100 Subject: [PATCH 071/132] migrate to consolidated types. (#23) --- p2p/host/autonat/autonat.go | 24 ++++++++++++------------ p2p/host/autonat/autonat_test.go | 13 +++++++------ p2p/host/autonat/client.go | 14 +++++++------- p2p/host/autonat/notify.go | 17 +++++++++-------- p2p/host/autonat/proto.go | 5 +++-- 5 files changed, 38 insertions(+), 35 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 60188c94da..7e839dddd2 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -7,10 +7,10 @@ import ( "sync" "time" - host "github.com/libp2p/go-libp2p-host" - inet "github.com/libp2p/go-libp2p-net" - peer "github.com/libp2p/go-libp2p-peer" - pstore "github.com/libp2p/go-libp2p-peerstore" + "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/network" + "github.com/libp2p/go-libp2p-core/peer" + "github.com/libp2p/go-libp2p-core/peerstore" ma "github.com/multiformats/go-multiaddr" ) @@ -157,10 +157,10 @@ func (as *AmbientAutoNAT) autodetect() { for _, pi := range peers[:probe] { wg.Add(1) - go func(pi pstore.PeerInfo) { + go func(pi peer.AddrInfo) { defer wg.Done() - as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, pstore.TempAddrTTL) + as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, peerstore.TempAddrTTL) a, err := cli.DialBack(ctx, pi.ID) switch { @@ -217,7 +217,7 @@ func (as *AmbientAutoNAT) autodetect() { as.mx.Unlock() } -func (as *AmbientAutoNAT) getPeers() []pstore.PeerInfo { +func (as *AmbientAutoNAT) getPeers() []peer.AddrInfo { as.mx.Lock() defer as.mx.Unlock() @@ -225,13 +225,13 @@ func (as *AmbientAutoNAT) getPeers() []pstore.PeerInfo { return nil } - var connected, others []pstore.PeerInfo + var connected, others []peer.AddrInfo for p, addrs := range as.peers { - if as.host.Network().Connectedness(p) == inet.Connected { - connected = append(connected, pstore.PeerInfo{ID: p, Addrs: addrs}) + if as.host.Network().Connectedness(p) == network.Connected { + connected = append(connected, peer.AddrInfo{ID: p, Addrs: addrs}) } else { - others = append(others, pstore.PeerInfo{ID: p, Addrs: addrs}) + others = append(others, peer.AddrInfo{ID: p, Addrs: addrs}) } } @@ -245,7 +245,7 @@ func (as *AmbientAutoNAT) getPeers() []pstore.PeerInfo { } } -func shufflePeers(peers []pstore.PeerInfo) { +func shufflePeers(peers []peer.AddrInfo) { for i := range peers { j := rand.Intn(i + 1) peers[i], peers[j] = peers[j], peers[i] diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 9e81453675..e5fc7fff37 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -6,12 +6,13 @@ import ( "time" pb "github.com/libp2p/go-libp2p-autonat/pb" + "github.com/libp2p/go-libp2p-core/peer" + + "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/network" ggio "github.com/gogo/protobuf/io" bhost "github.com/libp2p/go-libp2p-blankhost" - host "github.com/libp2p/go-libp2p-host" - inet "github.com/libp2p/go-libp2p-net" - pstore "github.com/libp2p/go-libp2p-peerstore" swarmt "github.com/libp2p/go-libp2p-swarm/testing" ma "github.com/multiformats/go-multiaddr" ) @@ -36,7 +37,7 @@ func makeAutoNATServicePublic(ctx context.Context, t *testing.T) host.Host { return h } -func sayAutoNATPrivate(s inet.Stream) { +func sayAutoNATPrivate(s network.Stream) { defer s.Close() w := ggio.NewDelimitedWriter(s) res := pb.Message{ @@ -46,7 +47,7 @@ func sayAutoNATPrivate(s inet.Stream) { w.WriteMsg(&res) } -func sayAutoNATPublic(s inet.Stream) { +func sayAutoNATPublic(s network.Stream) { defer s.Close() w := ggio.NewDelimitedWriter(s) res := pb.Message{ @@ -80,7 +81,7 @@ func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, A } func connect(t *testing.T, a, b host.Host) { - pinfo := pstore.PeerInfo{ID: a.ID(), Addrs: a.Addrs()} + pinfo := peer.AddrInfo{ID: a.ID(), Addrs: a.Addrs()} err := b.Connect(context.Background(), pinfo) if err != nil { t.Fatal(err) diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index aa3075e4c9..0d8549b48a 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -5,12 +5,12 @@ import ( "fmt" pb "github.com/libp2p/go-libp2p-autonat/pb" + "github.com/libp2p/go-libp2p-core/helpers" ggio "github.com/gogo/protobuf/io" - host "github.com/libp2p/go-libp2p-host" - inet "github.com/libp2p/go-libp2p-net" - peer "github.com/libp2p/go-libp2p-peer" - pstore "github.com/libp2p/go-libp2p-peerstore" + "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/network" + "github.com/libp2p/go-libp2p-core/peer" ma "github.com/multiformats/go-multiaddr" ) @@ -51,12 +51,12 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } // Might as well just reset the stream. Once we get to this point, we // don't care about being nice. - defer inet.FullClose(s) + defer helpers.FullClose(s) - r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) + r := ggio.NewDelimitedReader(s, network.MessageSizeMax) w := ggio.NewDelimitedWriter(s) - req := newDialMessage(pstore.PeerInfo{ID: c.h.ID(), Addrs: c.getAddrs()}) + req := newDialMessage(peer.AddrInfo{ID: c.h.ID(), Addrs: c.getAddrs()}) err = w.WriteMsg(req) if err != nil { s.Reset() diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 69f5a6457f..4ea6561603 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -3,20 +3,21 @@ package autonat import ( "time" - inet "github.com/libp2p/go-libp2p-net" + "github.com/libp2p/go-libp2p-core/network" + ma "github.com/multiformats/go-multiaddr" ) -var _ inet.Notifiee = (*AmbientAutoNAT)(nil) +var _ network.Notifiee = (*AmbientAutoNAT)(nil) var AutoNATIdentifyDelay = 5 * time.Second -func (as *AmbientAutoNAT) Listen(net inet.Network, a ma.Multiaddr) {} -func (as *AmbientAutoNAT) ListenClose(net inet.Network, a ma.Multiaddr) {} -func (as *AmbientAutoNAT) OpenedStream(net inet.Network, s inet.Stream) {} -func (as *AmbientAutoNAT) ClosedStream(net inet.Network, s inet.Stream) {} +func (as *AmbientAutoNAT) Listen(net network.Network, a ma.Multiaddr) {} +func (as *AmbientAutoNAT) ListenClose(net network.Network, a ma.Multiaddr) {} +func (as *AmbientAutoNAT) OpenedStream(net network.Network, s network.Stream) {} +func (as *AmbientAutoNAT) ClosedStream(net network.Network, s network.Stream) {} -func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { +func (as *AmbientAutoNAT) Connected(net network.Network, c network.Conn) { p := c.RemotePeer() go func() { @@ -38,4 +39,4 @@ func (as *AmbientAutoNAT) Connected(net inet.Network, c inet.Conn) { }() } -func (as *AmbientAutoNAT) Disconnected(net inet.Network, c inet.Conn) {} +func (as *AmbientAutoNAT) Disconnected(net network.Network, c network.Conn) {} diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index 2dbb8ebaa7..61ef986d3b 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -3,15 +3,16 @@ package autonat import ( pb "github.com/libp2p/go-libp2p-autonat/pb" + "github.com/libp2p/go-libp2p-core/peer" + logging "github.com/ipfs/go-log" - pstore "github.com/libp2p/go-libp2p-peerstore" ) const AutoNATProto = "/libp2p/autonat/1.0.0" var log = logging.Logger("autonat") -func newDialMessage(pi pstore.PeerInfo) *pb.Message { +func newDialMessage(pi peer.AddrInfo) *pb.Message { msg := new(pb.Message) msg.Type = pb.Message_DIAL.Enum() msg.Dial = new(pb.Message_Dial) From 9ad01ee912607d192a9956b2d6f3c2f09f7bd110 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ra=C3=BAl=20Kripalani?= Date: Sun, 26 May 2019 23:40:01 +0100 Subject: [PATCH 072/132] migrate to consolidated types. (#21) --- p2p/host/autonat/svc.go | 21 +++++++++++---------- p2p/host/autonat/svc_test.go | 11 ++++++----- 2 files changed, 17 insertions(+), 15 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index febae7a407..a685f3d36d 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -5,15 +5,16 @@ import ( "sync" "time" + "github.com/libp2p/go-libp2p" + "github.com/libp2p/go-libp2p-core/helpers" + "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/network" + "github.com/libp2p/go-libp2p-core/peer" + pb "github.com/libp2p/go-libp2p-autonat/pb" ggio "github.com/gogo/protobuf/io" - libp2p "github.com/libp2p/go-libp2p" autonat "github.com/libp2p/go-libp2p-autonat" - host "github.com/libp2p/go-libp2p-host" - inet "github.com/libp2p/go-libp2p-net" - peer "github.com/libp2p/go-libp2p-peer" - pstore "github.com/libp2p/go-libp2p-peerstore" ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) @@ -57,13 +58,13 @@ func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) return as, nil } -func (as *AutoNATService) handleStream(s inet.Stream) { - defer inet.FullClose(s) +func (as *AutoNATService) handleStream(s network.Stream) { + defer helpers.FullClose(s) pid := s.Conn().RemotePeer() log.Debugf("New stream from %s", pid.Pretty()) - r := ggio.NewDelimitedReader(s, inet.MessageSizeMax) + r := ggio.NewDelimitedReader(s, network.MessageSizeMax) w := ggio.NewDelimitedWriter(s) var req pb.Message @@ -146,7 +147,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me return newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses") } - return as.doDial(pstore.PeerInfo{ID: p, Addrs: addrs}) + return as.doDial(peer.AddrInfo{ID: p, Addrs: addrs}) } func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { @@ -164,7 +165,7 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { return false } -func (as *AutoNATService) doDial(pi pstore.PeerInfo) *pb.Message_DialResponse { +func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() count := as.reqs[pi.ID] diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index c0a676dece..9ef9ec0197 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -6,10 +6,11 @@ import ( "testing" "time" - libp2p "github.com/libp2p/go-libp2p" + "github.com/libp2p/go-libp2p" + "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/peer" + autonat "github.com/libp2p/go-libp2p-autonat" - host "github.com/libp2p/go-libp2p-host" - pstore "github.com/libp2p/go-libp2p-peerstore" manet "github.com/multiformats/go-multiaddr-net" ) @@ -38,14 +39,14 @@ func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, autonat.Au } func connect(t *testing.T, a, b host.Host) { - pinfo := pstore.PeerInfo{ID: a.ID(), Addrs: a.Addrs()} + pinfo := peer.AddrInfo{ID: a.ID(), Addrs: a.Addrs()} err := b.Connect(context.Background(), pinfo) if err != nil { t.Fatal(err) } } -// Note: these tests assume that the host has only private inet addresses! +// Note: these tests assume that the host has only private network addresses! func TestAutoNATServiceDialError(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() From afa8538210d0c6ef38a8b425737df1474769ec16 Mon Sep 17 00:00:00 2001 From: Preston Van Loon Date: Tue, 24 Sep 2019 15:37:22 -0700 Subject: [PATCH 073/132] Update autonat.proto --- p2p/host/autonat/pb/autonat.proto | 2 ++ 1 file changed, 2 insertions(+) diff --git a/p2p/host/autonat/pb/autonat.proto b/p2p/host/autonat/pb/autonat.proto index 7107e1c07f..777270a139 100644 --- a/p2p/host/autonat/pb/autonat.proto +++ b/p2p/host/autonat/pb/autonat.proto @@ -1,3 +1,5 @@ +syntax = "proto2"; + package autonat.pb; message Message { From 2a821c45480945ed131000bf1564ad430e0b5f35 Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Mon, 28 Oct 2019 16:07:28 -0700 Subject: [PATCH 074/132] chore(dep): update * update gogo/protobuf and regenerate protobuf files * update go-libp2p --- p2p/host/autonat/pb/autonat.pb.go | 250 +++++++++++++++--------------- 1 file changed, 127 insertions(+), 123 deletions(-) diff --git a/p2p/host/autonat/pb/autonat.pb.go b/p2p/host/autonat/pb/autonat.pb.go index 3617b4615a..b176cb99e0 100644 --- a/p2p/host/autonat/pb/autonat.pb.go +++ b/p2p/host/autonat/pb/autonat.pb.go @@ -8,6 +8,7 @@ import ( proto "github.com/gogo/protobuf/proto" io "io" math "math" + math_bits "math/bits" ) // Reference imports to suppress errors if they are not otherwise used. @@ -19,7 +20,7 @@ var _ = math.Inf // is compatible with the proto package it is being compiled against. // A compilation error at this line likely means your copy of the // proto package needs to be updated. -const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package +const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package type Message_MessageType int32 @@ -133,7 +134,7 @@ func (m *Message) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) { return xxx_messageInfo_Message.Marshal(b, m, deterministic) } else { b = b[:cap(b)] - n, err := m.MarshalTo(b) + n, err := m.MarshalToSizedBuffer(b) if err != nil { return nil, err } @@ -195,7 +196,7 @@ func (m *Message_PeerInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, er return xxx_messageInfo_Message_PeerInfo.Marshal(b, m, deterministic) } else { b = b[:cap(b)] - n, err := m.MarshalTo(b) + n, err := m.MarshalToSizedBuffer(b) if err != nil { return nil, err } @@ -249,7 +250,7 @@ func (m *Message_Dial) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) return xxx_messageInfo_Message_Dial.Marshal(b, m, deterministic) } else { b = b[:cap(b)] - n, err := m.MarshalTo(b) + n, err := m.MarshalToSizedBuffer(b) if err != nil { return nil, err } @@ -298,7 +299,7 @@ func (m *Message_DialResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte return xxx_messageInfo_Message_DialResponse.Marshal(b, m, deterministic) } else { b = b[:cap(b)] - n, err := m.MarshalTo(b) + n, err := m.MarshalToSizedBuffer(b) if err != nil { return nil, err } @@ -380,7 +381,7 @@ var fileDescriptor_a04e278ef61ac07a = []byte{ func (m *Message) Marshal() (dAtA []byte, err error) { size := m.Size() dAtA = make([]byte, size) - n, err := m.MarshalTo(dAtA) + n, err := m.MarshalToSizedBuffer(dAtA[:size]) if err != nil { return nil, err } @@ -388,45 +389,55 @@ func (m *Message) Marshal() (dAtA []byte, err error) { } func (m *Message) MarshalTo(dAtA []byte) (int, error) { - var i int + size := m.Size() + return m.MarshalToSizedBuffer(dAtA[:size]) +} + +func (m *Message) MarshalToSizedBuffer(dAtA []byte) (int, error) { + i := len(dAtA) _ = i var l int _ = l - if m.Type != nil { - dAtA[i] = 0x8 - i++ - i = encodeVarintAutonat(dAtA, i, uint64(*m.Type)) - } - if m.Dial != nil { - dAtA[i] = 0x12 - i++ - i = encodeVarintAutonat(dAtA, i, uint64(m.Dial.Size())) - n1, err := m.Dial.MarshalTo(dAtA[i:]) - if err != nil { - return 0, err - } - i += n1 + if m.XXX_unrecognized != nil { + i -= len(m.XXX_unrecognized) + copy(dAtA[i:], m.XXX_unrecognized) } if m.DialResponse != nil { + { + size, err := m.DialResponse.MarshalToSizedBuffer(dAtA[:i]) + if err != nil { + return 0, err + } + i -= size + i = encodeVarintAutonat(dAtA, i, uint64(size)) + } + i-- dAtA[i] = 0x1a - i++ - i = encodeVarintAutonat(dAtA, i, uint64(m.DialResponse.Size())) - n2, err := m.DialResponse.MarshalTo(dAtA[i:]) - if err != nil { - return 0, err + } + if m.Dial != nil { + { + size, err := m.Dial.MarshalToSizedBuffer(dAtA[:i]) + if err != nil { + return 0, err + } + i -= size + i = encodeVarintAutonat(dAtA, i, uint64(size)) } - i += n2 + i-- + dAtA[i] = 0x12 } - if m.XXX_unrecognized != nil { - i += copy(dAtA[i:], m.XXX_unrecognized) + if m.Type != nil { + i = encodeVarintAutonat(dAtA, i, uint64(*m.Type)) + i-- + dAtA[i] = 0x8 } - return i, nil + return len(dAtA) - i, nil } func (m *Message_PeerInfo) Marshal() (dAtA []byte, err error) { size := m.Size() dAtA = make([]byte, size) - n, err := m.MarshalTo(dAtA) + n, err := m.MarshalToSizedBuffer(dAtA[:size]) if err != nil { return nil, err } @@ -434,34 +445,42 @@ func (m *Message_PeerInfo) Marshal() (dAtA []byte, err error) { } func (m *Message_PeerInfo) MarshalTo(dAtA []byte) (int, error) { - var i int + size := m.Size() + return m.MarshalToSizedBuffer(dAtA[:size]) +} + +func (m *Message_PeerInfo) MarshalToSizedBuffer(dAtA []byte) (int, error) { + i := len(dAtA) _ = i var l int _ = l - if m.Id != nil { - dAtA[i] = 0xa - i++ - i = encodeVarintAutonat(dAtA, i, uint64(len(m.Id))) - i += copy(dAtA[i:], m.Id) + if m.XXX_unrecognized != nil { + i -= len(m.XXX_unrecognized) + copy(dAtA[i:], m.XXX_unrecognized) } if len(m.Addrs) > 0 { - for _, b := range m.Addrs { + for iNdEx := len(m.Addrs) - 1; iNdEx >= 0; iNdEx-- { + i -= len(m.Addrs[iNdEx]) + copy(dAtA[i:], m.Addrs[iNdEx]) + i = encodeVarintAutonat(dAtA, i, uint64(len(m.Addrs[iNdEx]))) + i-- dAtA[i] = 0x12 - i++ - i = encodeVarintAutonat(dAtA, i, uint64(len(b))) - i += copy(dAtA[i:], b) } } - if m.XXX_unrecognized != nil { - i += copy(dAtA[i:], m.XXX_unrecognized) + if m.Id != nil { + i -= len(m.Id) + copy(dAtA[i:], m.Id) + i = encodeVarintAutonat(dAtA, i, uint64(len(m.Id))) + i-- + dAtA[i] = 0xa } - return i, nil + return len(dAtA) - i, nil } func (m *Message_Dial) Marshal() (dAtA []byte, err error) { size := m.Size() dAtA = make([]byte, size) - n, err := m.MarshalTo(dAtA) + n, err := m.MarshalToSizedBuffer(dAtA[:size]) if err != nil { return nil, err } @@ -469,30 +488,38 @@ func (m *Message_Dial) Marshal() (dAtA []byte, err error) { } func (m *Message_Dial) MarshalTo(dAtA []byte) (int, error) { - var i int + size := m.Size() + return m.MarshalToSizedBuffer(dAtA[:size]) +} + +func (m *Message_Dial) MarshalToSizedBuffer(dAtA []byte) (int, error) { + i := len(dAtA) _ = i var l int _ = l + if m.XXX_unrecognized != nil { + i -= len(m.XXX_unrecognized) + copy(dAtA[i:], m.XXX_unrecognized) + } if m.Peer != nil { - dAtA[i] = 0xa - i++ - i = encodeVarintAutonat(dAtA, i, uint64(m.Peer.Size())) - n3, err := m.Peer.MarshalTo(dAtA[i:]) - if err != nil { - return 0, err + { + size, err := m.Peer.MarshalToSizedBuffer(dAtA[:i]) + if err != nil { + return 0, err + } + i -= size + i = encodeVarintAutonat(dAtA, i, uint64(size)) } - i += n3 - } - if m.XXX_unrecognized != nil { - i += copy(dAtA[i:], m.XXX_unrecognized) + i-- + dAtA[i] = 0xa } - return i, nil + return len(dAtA) - i, nil } func (m *Message_DialResponse) Marshal() (dAtA []byte, err error) { size := m.Size() dAtA = make([]byte, size) - n, err := m.MarshalTo(dAtA) + n, err := m.MarshalToSizedBuffer(dAtA[:size]) if err != nil { return nil, err } @@ -500,41 +527,51 @@ func (m *Message_DialResponse) Marshal() (dAtA []byte, err error) { } func (m *Message_DialResponse) MarshalTo(dAtA []byte) (int, error) { - var i int + size := m.Size() + return m.MarshalToSizedBuffer(dAtA[:size]) +} + +func (m *Message_DialResponse) MarshalToSizedBuffer(dAtA []byte) (int, error) { + i := len(dAtA) _ = i var l int _ = l - if m.Status != nil { - dAtA[i] = 0x8 - i++ - i = encodeVarintAutonat(dAtA, i, uint64(*m.Status)) - } - if m.StatusText != nil { - dAtA[i] = 0x12 - i++ - i = encodeVarintAutonat(dAtA, i, uint64(len(*m.StatusText))) - i += copy(dAtA[i:], *m.StatusText) + if m.XXX_unrecognized != nil { + i -= len(m.XXX_unrecognized) + copy(dAtA[i:], m.XXX_unrecognized) } if m.Addr != nil { - dAtA[i] = 0x1a - i++ + i -= len(m.Addr) + copy(dAtA[i:], m.Addr) i = encodeVarintAutonat(dAtA, i, uint64(len(m.Addr))) - i += copy(dAtA[i:], m.Addr) + i-- + dAtA[i] = 0x1a } - if m.XXX_unrecognized != nil { - i += copy(dAtA[i:], m.XXX_unrecognized) + if m.StatusText != nil { + i -= len(*m.StatusText) + copy(dAtA[i:], *m.StatusText) + i = encodeVarintAutonat(dAtA, i, uint64(len(*m.StatusText))) + i-- + dAtA[i] = 0x12 } - return i, nil + if m.Status != nil { + i = encodeVarintAutonat(dAtA, i, uint64(*m.Status)) + i-- + dAtA[i] = 0x8 + } + return len(dAtA) - i, nil } func encodeVarintAutonat(dAtA []byte, offset int, v uint64) int { + offset -= sovAutonat(v) + base := offset for v >= 1<<7 { dAtA[offset] = uint8(v&0x7f | 0x80) v >>= 7 offset++ } dAtA[offset] = uint8(v) - return offset + 1 + return base } func (m *Message) Size() (n int) { if m == nil { @@ -621,14 +658,7 @@ func (m *Message_DialResponse) Size() (n int) { } func sovAutonat(x uint64) (n int) { - for { - n++ - x >>= 7 - if x == 0 { - break - } - } - return n + return (math_bits.Len64(x|1) + 6) / 7 } func sozAutonat(x uint64) (n int) { return sovAutonat(uint64((x << 1) ^ uint64((int64(x) >> 63)))) @@ -1133,6 +1163,7 @@ func (m *Message_DialResponse) Unmarshal(dAtA []byte) error { func skipAutonat(dAtA []byte) (n int, err error) { l := len(dAtA) iNdEx := 0 + depth := 0 for iNdEx < l { var wire uint64 for shift := uint(0); ; shift += 7 { @@ -1164,10 +1195,8 @@ func skipAutonat(dAtA []byte) (n int, err error) { break } } - return iNdEx, nil case 1: iNdEx += 8 - return iNdEx, nil case 2: var length int for shift := uint(0); ; shift += 7 { @@ -1191,52 +1220,27 @@ func skipAutonat(dAtA []byte) (n int, err error) { if iNdEx < 0 { return 0, ErrInvalidLengthAutonat } - return iNdEx, nil case 3: - for { - var innerWire uint64 - var start int = iNdEx - for shift := uint(0); ; shift += 7 { - if shift >= 64 { - return 0, ErrIntOverflowAutonat - } - if iNdEx >= l { - return 0, io.ErrUnexpectedEOF - } - b := dAtA[iNdEx] - iNdEx++ - innerWire |= (uint64(b) & 0x7F) << shift - if b < 0x80 { - break - } - } - innerWireType := int(innerWire & 0x7) - if innerWireType == 4 { - break - } - next, err := skipAutonat(dAtA[start:]) - if err != nil { - return 0, err - } - iNdEx = start + next - if iNdEx < 0 { - return 0, ErrInvalidLengthAutonat - } - } - return iNdEx, nil + depth++ case 4: - return iNdEx, nil + if depth == 0 { + return 0, ErrUnexpectedEndOfGroupAutonat + } + depth-- case 5: iNdEx += 4 - return iNdEx, nil default: return 0, fmt.Errorf("proto: illegal wireType %d", wireType) } + if depth == 0 { + return iNdEx, nil + } } - panic("unreachable") + return 0, io.ErrUnexpectedEOF } var ( - ErrInvalidLengthAutonat = fmt.Errorf("proto: negative length found during unmarshaling") - ErrIntOverflowAutonat = fmt.Errorf("proto: integer overflow") + ErrInvalidLengthAutonat = fmt.Errorf("proto: negative length found during unmarshaling") + ErrIntOverflowAutonat = fmt.Errorf("proto: integer overflow") + ErrUnexpectedEndOfGroupAutonat = fmt.Errorf("proto: unexpected end of group") ) From 373245d54a9d61d5503890aaa68ba3be490c2bf7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C5=81ukasz=20Magiera?= Date: Tue, 25 Jun 2019 23:43:16 +0200 Subject: [PATCH 075/132] Emit events when NAT status changes (#25) --- p2p/host/autonat/autonat.go | 31 ++++++++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 7e839dddd2..351efe3b22 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -7,6 +7,7 @@ import ( "sync" "time" + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" @@ -61,6 +62,10 @@ type AmbientAutoNAT struct { // If only a single autoNAT peer is known, then the confidence increases // for each failure until it reaches 3. confidence int + + emitUnknown event.Emitter + emitPublic event.Emitter + emitPrivate event.Emitter } // NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host @@ -70,12 +75,20 @@ func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { getAddrs = h.Addrs } + emitUnknown, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityUnknown)) + emitPublic, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityPublic)) + emitPrivate, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityPrivate)) + as := &AmbientAutoNAT{ ctx: ctx, host: h, getAddrs: getAddrs, peers: make(map[peer.ID][]ma.Multiaddr), status: NATStatusUnknown, + + emitUnknown: emitUnknown, + emitPublic: emitPublic, + emitPrivate: emitPrivate, } h.Network().Notify(as) @@ -90,6 +103,18 @@ func (as *AmbientAutoNAT) Status() NATStatus { return as.status } +func (as *AmbientAutoNAT) updateStatus(s NATStatus) { + as.status = s + switch s { + case NATStatusUnknown: + as.emitUnknown.Emit(event.EvtLocalRoutabilityUnknown{}) + case NATStatusPublic: + as.emitPublic.Emit(event.EvtLocalRoutabilityPublic{}) + case NATStatusPrivate: + as.emitPrivate.Emit(event.EvtLocalRoutabilityPrivate{}) + } +} + func (as *AmbientAutoNAT) PublicAddr() (ma.Multiaddr, error) { as.mx.Lock() defer as.mx.Unlock() @@ -194,7 +219,7 @@ func (as *AmbientAutoNAT) autodetect() { } else if as.confidence < 3 { as.confidence++ } - as.status = NATStatusPublic + as.updateStatus(NATStatusPublic) as.addr = result.pubaddr } else if result.private > 0 { log.Debugf("NAT status is private") @@ -204,14 +229,14 @@ func (as *AmbientAutoNAT) autodetect() { } else if as.confidence < 3 { as.confidence++ } - as.status = NATStatusPrivate + as.updateStatus(NATStatusPrivate) as.addr = nil } else if as.confidence > 0 { // don't just flip to unknown, reduce confidence first as.confidence-- } else { log.Debugf("NAT status is unknown") - as.status = NATStatusUnknown + as.updateStatus(NATStatusUnknown) as.addr = nil } as.mx.Unlock() From 44def816bfe8036443b8a4dcb541a6c9319314c6 Mon Sep 17 00:00:00 2001 From: Aarsh Shah Date: Thu, 6 Feb 2020 13:46:10 +0530 Subject: [PATCH 076/132] unit tests for event updation --- p2p/host/autonat/autonat.go | 6 ++--- p2p/host/autonat/autonat_test.go | 38 ++++++++++++++++++++++++++++++-- 2 files changed, 39 insertions(+), 5 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 351efe3b22..2d6c9786f9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -219,8 +219,8 @@ func (as *AmbientAutoNAT) autodetect() { } else if as.confidence < 3 { as.confidence++ } - as.updateStatus(NATStatusPublic) as.addr = result.pubaddr + as.updateStatus(NATStatusPublic) } else if result.private > 0 { log.Debugf("NAT status is private") if as.status == NATStatusPublic { @@ -229,15 +229,15 @@ func (as *AmbientAutoNAT) autodetect() { } else if as.confidence < 3 { as.confidence++ } - as.updateStatus(NATStatusPrivate) as.addr = nil + as.updateStatus(NATStatusPrivate) } else if as.confidence > 0 { // don't just flip to unknown, reduce confidence first as.confidence-- } else { log.Debugf("NAT status is unknown") - as.updateStatus(NATStatusUnknown) as.addr = nil + as.updateStatus(NATStatusUnknown) } as.mx.Unlock() } diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index e5fc7fff37..74a429ca4f 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -6,10 +6,10 @@ import ( "time" pb "github.com/libp2p/go-libp2p-autonat/pb" - "github.com/libp2p/go-libp2p-core/peer" - + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" + "github.com/libp2p/go-libp2p-core/peer" ggio "github.com/gogo/protobuf/io" bhost "github.com/libp2p/go-libp2p-blankhost" @@ -96,6 +96,12 @@ func TestAutoNATPrivate(t *testing.T) { hs := makeAutoNATServicePrivate(ctx, t) hc, an := makeAutoNAT(ctx, t, hs) + // subscribe to AutoNat events + s, err := hc.EventBus().Subscribe(&event.EvtLocalRoutabilityPrivate{}) + if err != nil { + t.Fatalf("failed to subscribe to event EvtLocalRoutabilityPrivate, err=%s", err) + } + status := an.Status() if status != NATStatusUnknown { t.Fatalf("unexpected NAT status: %d", status) @@ -108,6 +114,17 @@ func TestAutoNATPrivate(t *testing.T) { if status != NATStatusPrivate { t.Fatalf("unexpected NAT status: %d", status) } + + select { + case e := <-s.Out(): + _, ok := e.(event.EvtLocalRoutabilityPrivate) + if !ok { + t.Fatal("got wrong event type from the bus") + } + + case <-time.After(1 * time.Second): + t.Fatal("failed to get the EvtLocalRoutabilityPrivate event from the bus") + } } func TestAutoNATPublic(t *testing.T) { @@ -117,6 +134,12 @@ func TestAutoNATPublic(t *testing.T) { hs := makeAutoNATServicePublic(ctx, t) hc, an := makeAutoNAT(ctx, t, hs) + // subscribe to AutoNat events + s, err := hc.EventBus().Subscribe(&event.EvtLocalRoutabilityPublic{}) + if err != nil { + t.Fatalf("failed to subscribe to event EvtLocalRoutabilityPublic, err=%s", err) + } + status := an.Status() if status != NATStatusUnknown { t.Fatalf("unexpected NAT status: %d", status) @@ -129,4 +152,15 @@ func TestAutoNATPublic(t *testing.T) { if status != NATStatusPublic { t.Fatalf("unexpected NAT status: %d", status) } + + select { + case e := <-s.Out(): + _, ok := e.(event.EvtLocalRoutabilityPublic) + if !ok { + t.Fatal("got wrong event type from the bus") + } + + case <-time.After(1 * time.Second): + t.Fatal("failed to get the EvtLocalRoutabilityPublic event from the bus") + } } From b952c16927e04a2aed5c4d69692a01e717d3db65 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 12 Feb 2020 17:04:29 -0800 Subject: [PATCH 077/132] rate limiting and selectivity of autonat svc * limits addresses for a peer (at most 4 chosen) - fix #39 * clears addresses before dialing back - fix #38 * global rate limit of 30 responses per (1 - 1.25 min) - fix #36 * only dial back on the source IP - fix #32 --- p2p/host/autonat/svc.go | 59 ++++++++++++++++++++++++++++++------ p2p/host/autonat/svc_test.go | 30 ++++++++++++++++++ 2 files changed, 80 insertions(+), 9 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index a685f3d36d..98af2941da 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -1,7 +1,10 @@ package autonat import ( + "bytes" "context" + "math/rand" + "net" "sync" "time" @@ -24,8 +27,11 @@ const P_CIRCUIT = 290 var ( AutoNATServiceDialTimeout = 15 * time.Second AutoNATServiceResetInterval = 1 * time.Minute + AutoNATServiceResetJitter = 15 * time.Second - AutoNATServiceThrottle = 3 + AutoNATServiceThrottle = 3 + AutoNATGlobalThrottle = 30 + AutoNATMaxPeerAddresses = 4 ) // AutoNATService provides NAT autodetection services to other peers @@ -34,8 +40,9 @@ type AutoNATService struct { dialer host.Host // rate limiter - mx sync.Mutex - reqs map[peer.ID]int + mx sync.Mutex + reqs map[peer.ID]int + globalReqs int } // NewAutoNATService creates a new AutoNATService instance attached to a host @@ -96,6 +103,21 @@ func (as *AutoNATService) handleStream(s network.Stream) { } } +// Optimistically extract the net.IP host from a multiaddress. +func addrToIP(addr ma.Multiaddr) net.IP { + if v4, err := addr.ValueForProtocol(ma.P_IP4); err == nil { + if c, err := ma.NewComponent(ma.ProtocolWithCode(ma.P_IP4).Name, v4); err == nil { + return net.IP(c.RawValue()) + } + } + if v6, err := addr.ValueForProtocol(ma.P_IP6); err == nil { + if c, err := ma.NewComponent(ma.ProtocolWithCode(ma.P_IP6).Name, v6); err == nil { + return net.IP(c.RawValue()) + } + } + return nil +} + func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { if mpi == nil { return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") @@ -113,13 +135,15 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me } } - addrs := make([]ma.Multiaddr, 0) + addrs := make([]ma.Multiaddr, 0, AutoNATMaxPeerAddresses) seen := make(map[string]struct{}) // add observed addr to the list of addresses to dial + var obsHost net.IP if !as.skipDial(obsaddr) { addrs = append(addrs, obsaddr) seen[obsaddr.String()] = struct{}{} + obsHost = addrToIP(obsaddr) } for _, maddr := range mpi.GetAddrs() { @@ -129,10 +153,22 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } + if len(addrs) >= AutoNATMaxPeerAddresses { + continue + } + if as.skipDial(addr) { continue } + if err != nil { + log.Debugf("Unexpected public, non-IP multiaddr: %s", err) + continue + } + if !bytes.Equal(obsHost, addrToIP(addr)) { + continue + } + str := addr.String() _, ok := seen[str] if ok { @@ -169,16 +205,19 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() count := as.reqs[pi.ID] - if count >= AutoNATServiceThrottle { + if count >= AutoNATServiceThrottle || as.globalReqs >= AutoNATGlobalThrottle { as.mx.Unlock() return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") } as.reqs[pi.ID] = count + 1 + as.globalReqs++ as.mx.Unlock() ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) defer cancel() + as.dialer.Peerstore().ClearAddrs(pi.ID) + err := as.dialer.Connect(ctx, pi) if err != nil { log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) @@ -200,16 +239,18 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { } func (as *AutoNATService) resetRateLimiter() { - ticker := time.NewTicker(AutoNATServiceResetInterval) - defer ticker.Stop() + timer := time.NewTimer(AutoNATServiceResetInterval) + defer timer.Stop() for { select { - case <-ticker.C: + case <-timer.C: as.mx.Lock() as.reqs = make(map[peer.ID]int) + as.globalReqs = 0 as.mx.Unlock() - + jitter := rand.Float32() * float32(AutoNATServiceResetJitter) + timer.Reset(AutoNATServiceResetInterval + time.Duration(int64(jitter))) case <-as.ctx.Done(): return } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 9ef9ec0197..f2aa91a6b3 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -11,6 +11,7 @@ import ( "github.com/libp2p/go-libp2p-core/peer" autonat "github.com/libp2p/go-libp2p-autonat" + ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) @@ -101,6 +102,8 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceThrottle = 1 save4 := manet.Private4 manet.Private4 = []*net.IPNet{} + save5 := AutoNATServiceResetJitter + AutoNATServiceResetJitter = 0 * time.Second hs, _ := makeAutoNATService(ctx, t) hc, ac := makeAutoNATClient(ctx, t) @@ -131,4 +134,31 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceResetInterval = save2 AutoNATServiceThrottle = save3 manet.Private4 = save4 + AutoNATServiceResetJitter = save5 +} + +func TestAddrToIP(t *testing.T) { + addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/0") + if !addrToIP(addr).Equal(net.IPv4(127, 0, 0, 1)) { + t.Fatal("addrToIP of ipv4 localhost incorrect!") + } + + addr, _ = ma.NewMultiaddr("/ip4/192.168.0.1/tcp/6") + if !addrToIP(addr).Equal(net.IPv4(192, 168, 0, 1)) { + t.Fatal("addrToIP of ipv4 incorrect!") + } + + addr, _ = ma.NewMultiaddr("/ip6/::ffff:127.0.0.1/tcp/111") + if !addrToIP(addr).Equal(net.ParseIP("::ffff:127.0.0.1")) { + t.Fatal("addrToIP of ipv6 incorrect!") + } + addr, _ = ma.NewMultiaddr("/ip6zone/eth0/ip6/fe80::1") + if !addrToIP(addr).Equal(net.ParseIP("fe80::1")) { + t.Fatal("addrToIP of ip6zone incorrect!") + } + + addr, _ = ma.NewMultiaddr("/unix/a/b/c/d") + if addrToIP(addr) != nil { + t.Fatal("invalid addrToIP populates") + } } From 10b0a942b847c0797acf674d5c481e288ccf4530 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Fri, 21 Feb 2020 13:54:33 -0800 Subject: [PATCH 078/132] cleaner addrToIP implementation --- p2p/host/autonat/svc.go | 45 +++++++++++++++++++++++++---------------- 1 file changed, 28 insertions(+), 17 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 98af2941da..141f4ee776 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -3,8 +3,10 @@ package autonat import ( "bytes" "context" + "fmt" "math/rand" "net" + "strings" "sync" "time" @@ -31,7 +33,7 @@ var ( AutoNATServiceThrottle = 3 AutoNATGlobalThrottle = 30 - AutoNATMaxPeerAddresses = 4 + AutoNATMaxPeerAddresses = 16 ) // AutoNATService provides NAT autodetection services to other peers @@ -105,17 +107,30 @@ func (as *AutoNATService) handleStream(s network.Stream) { // Optimistically extract the net.IP host from a multiaddress. func addrToIP(addr ma.Multiaddr) net.IP { - if v4, err := addr.ValueForProtocol(ma.P_IP4); err == nil { - if c, err := ma.NewComponent(ma.ProtocolWithCode(ma.P_IP4).Name, v4); err == nil { - return net.IP(c.RawValue()) - } + n, ip, err := manet.DialArgs(addr) + if err != nil { + return nil } - if v6, err := addr.ValueForProtocol(ma.P_IP6); err == nil { - if c, err := ma.NewComponent(ma.ProtocolWithCode(ma.P_IP6).Name, v6); err == nil { - return net.IP(c.RawValue()) + + // if no port: + if n == "ip" || n == "ip4" || n == "ip6" { + // Strip v6 zone if it's there. + if strings.Contains(ip, "%") { + ip = ip[:strings.Index(ip, "%")] } + return net.ParseIP(ip) } - return nil + + ip, _, err = net.SplitHostPort(ip) + if err != nil { + fmt.Printf("failed to split: %v", err) + return nil + } + // Strip v6 zone if it's there. + if strings.Contains(ip, "%") { + ip = ip[:strings.Index(ip, "%")] + } + return net.ParseIP(ip) } func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { @@ -153,18 +168,10 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if len(addrs) >= AutoNATMaxPeerAddresses { - continue - } - if as.skipDial(addr) { continue } - if err != nil { - log.Debugf("Unexpected public, non-IP multiaddr: %s", err) - continue - } if !bytes.Equal(obsHost, addrToIP(addr)) { continue } @@ -177,6 +184,10 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me addrs = append(addrs, addr) seen[str] = struct{}{} + + if len(addrs) >= AutoNATMaxPeerAddresses { + break + } } if len(addrs) == 0 { From 426d729c513205073e4fdc71c6d2dd5f87fa65b2 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Tue, 25 Feb 2020 10:24:47 -0800 Subject: [PATCH 079/132] cleanup addrToIP logic --- p2p/host/autonat/svc.go | 28 +++++++++++----------------- p2p/host/autonat/svc_test.go | 10 +++++----- 2 files changed, 16 insertions(+), 22 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 141f4ee776..1073e19022 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -3,7 +3,7 @@ package autonat import ( "bytes" "context" - "fmt" + "errors" "math/rand" "net" "strings" @@ -106,31 +106,25 @@ func (as *AutoNATService) handleStream(s network.Stream) { } // Optimistically extract the net.IP host from a multiaddress. -func addrToIP(addr ma.Multiaddr) net.IP { +func addrToIP(addr ma.Multiaddr) (net.IP, error) { n, ip, err := manet.DialArgs(addr) if err != nil { - return nil + return nil, err } - // if no port: - if n == "ip" || n == "ip4" || n == "ip6" { - // Strip v6 zone if it's there. - if strings.Contains(ip, "%") { - ip = ip[:strings.Index(ip, "%")] - } - return net.ParseIP(ip) + if strings.HasPrefix(n, "tcp") || strings.HasPrefix(n, "udp") { + ip, _, err = net.SplitHostPort(ip) + } else if !strings.HasPrefix(n, "ip") { + return nil, errors.New("non-ip multiaddr") } - - ip, _, err = net.SplitHostPort(ip) if err != nil { - fmt.Printf("failed to split: %v", err) - return nil + return nil, err } // Strip v6 zone if it's there. if strings.Contains(ip, "%") { ip = ip[:strings.Index(ip, "%")] } - return net.ParseIP(ip) + return net.ParseIP(ip), nil } func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { @@ -158,7 +152,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me if !as.skipDial(obsaddr) { addrs = append(addrs, obsaddr) seen[obsaddr.String()] = struct{}{} - obsHost = addrToIP(obsaddr) + obsHost, _ = addrToIP(obsaddr) } for _, maddr := range mpi.GetAddrs() { @@ -172,7 +166,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if !bytes.Equal(obsHost, addrToIP(addr)) { + if ip, err := addrToIP(addr); err != nil || !bytes.Equal(obsHost, ip) { continue } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index f2aa91a6b3..9be52fbf61 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -139,26 +139,26 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { func TestAddrToIP(t *testing.T) { addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/0") - if !addrToIP(addr).Equal(net.IPv4(127, 0, 0, 1)) { + if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.IPv4(127, 0, 0, 1)) { t.Fatal("addrToIP of ipv4 localhost incorrect!") } addr, _ = ma.NewMultiaddr("/ip4/192.168.0.1/tcp/6") - if !addrToIP(addr).Equal(net.IPv4(192, 168, 0, 1)) { + if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.IPv4(192, 168, 0, 1)) { t.Fatal("addrToIP of ipv4 incorrect!") } addr, _ = ma.NewMultiaddr("/ip6/::ffff:127.0.0.1/tcp/111") - if !addrToIP(addr).Equal(net.ParseIP("::ffff:127.0.0.1")) { + if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.ParseIP("::ffff:127.0.0.1")) { t.Fatal("addrToIP of ipv6 incorrect!") } addr, _ = ma.NewMultiaddr("/ip6zone/eth0/ip6/fe80::1") - if !addrToIP(addr).Equal(net.ParseIP("fe80::1")) { + if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.ParseIP("fe80::1")) { t.Fatal("addrToIP of ip6zone incorrect!") } addr, _ = ma.NewMultiaddr("/unix/a/b/c/d") - if addrToIP(addr) != nil { + if _, err := addrToIP(addr); err == nil { t.Fatal("invalid addrToIP populates") } } From 9dcbc44a26bc79e0d6f78dd8a150946d055d5db3 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Tue, 25 Feb 2020 12:24:33 -0800 Subject: [PATCH 080/132] limit autonat-svc to LocalRoutabilityPublic nodes per #43 --- p2p/host/autonat/svc.go | 17 +++++++++++++++-- p2p/host/autonat/svc_test.go | 3 +++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index a685f3d36d..c1f9e53ccd 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -6,6 +6,7 @@ import ( "time" "github.com/libp2p/go-libp2p" + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/helpers" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" @@ -51,9 +52,21 @@ func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) dialer: dialer, reqs: make(map[peer.ID]int), } - h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) - go as.resetRateLimiter() + s, err := h.EventBus().Subscribe(&event.EvtLocalRoutabilityPublic{}) + if err != nil { + return nil, err + } + + go func() { + defer s.Close() + select { + case <-s.Out(): + h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) + go as.resetRateLimiter() + case <-ctx.Done(): + } + }() return as, nil } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 9ef9ec0197..eec48f07c2 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -7,6 +7,7 @@ import ( "time" "github.com/libp2p/go-libp2p" + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/peer" @@ -24,6 +25,8 @@ func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATS if err != nil { t.Fatal(err) } + emitPublic, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityPublic)) + emitPublic.Emit(event.EvtLocalRoutabilityPublic{}) return h, as } From 44e9abed05726d212064bd4b61d62b7e6f2aa17b Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 26 Feb 2020 12:27:44 -0800 Subject: [PATCH 081/132] address review comments use ip.Equal for comparison add test on jitter simplify addrToIP --- p2p/host/autonat/svc.go | 30 +++++++++++++----------------- p2p/host/autonat/svc_test.go | 24 ++++++++++++++++++++---- 2 files changed, 33 insertions(+), 21 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 1073e19022..1bf37683c7 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -1,12 +1,10 @@ package autonat import ( - "bytes" "context" - "errors" + "fmt" "math/rand" "net" - "strings" "sync" "time" @@ -106,25 +104,23 @@ func (as *AutoNATService) handleStream(s network.Stream) { } // Optimistically extract the net.IP host from a multiaddress. +// TODO: use upstream manet.ToIP func addrToIP(addr ma.Multiaddr) (net.IP, error) { - n, ip, err := manet.DialArgs(addr) + n, err := manet.ToNetAddr(addr) if err != nil { return nil, err } - if strings.HasPrefix(n, "tcp") || strings.HasPrefix(n, "udp") { - ip, _, err = net.SplitHostPort(ip) - } else if !strings.HasPrefix(n, "ip") { - return nil, errors.New("non-ip multiaddr") + switch netAddr := n.(type) { + case *net.UDPAddr: + return netAddr.IP, nil + case *net.TCPAddr: + return netAddr.IP, nil + case *net.IPAddr: + return netAddr.IP, nil + default: + return nil, fmt.Errorf("non IP Multiaddr: %T", netAddr) } - if err != nil { - return nil, err - } - // Strip v6 zone if it's there. - if strings.Contains(ip, "%") { - ip = ip[:strings.Index(ip, "%")] - } - return net.ParseIP(ip), nil } func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { @@ -166,7 +162,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if ip, err := addrToIP(addr); err != nil || !bytes.Equal(obsHost, ip) { + if ip, err := addrToIP(addr); err != nil || !obsHost.Equal(ip) { continue } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 9be52fbf61..b93e6e28ac 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -137,6 +137,26 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceResetJitter = save5 } +func TestAutoNATServiceRateLimitJitter(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save1 := AutoNATServiceResetInterval + AutoNATServiceResetInterval = 100 * time.Millisecond + save2 := AutoNATServiceResetJitter + AutoNATServiceResetJitter = 100 * time.Millisecond + + _, svc := makeAutoNATService(ctx, t) + svc.globalReqs = 1 + time.Sleep(200 * time.Millisecond) + if svc.globalReqs != 0 { + t.Fatal("reset of rate limitter occured slower than expected") + } + + AutoNATServiceResetInterval = save1 + AutoNATServiceResetJitter = save2 +} + func TestAddrToIP(t *testing.T) { addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/0") if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.IPv4(127, 0, 0, 1)) { @@ -148,10 +168,6 @@ func TestAddrToIP(t *testing.T) { t.Fatal("addrToIP of ipv4 incorrect!") } - addr, _ = ma.NewMultiaddr("/ip6/::ffff:127.0.0.1/tcp/111") - if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.ParseIP("::ffff:127.0.0.1")) { - t.Fatal("addrToIP of ipv6 incorrect!") - } addr, _ = ma.NewMultiaddr("/ip6zone/eth0/ip6/fe80::1") if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.ParseIP("fe80::1")) { t.Fatal("addrToIP of ip6zone incorrect!") From 370d2efb54c338ce39c211fcdf1ec1d22a2d8391 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 26 Feb 2020 16:39:17 -0800 Subject: [PATCH 082/132] Add option for forcing service startup --- p2p/host/autonat/svc.go | 15 +++++++++------ p2p/host/autonat/svc_test.go | 5 +---- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index c1f9e53ccd..8c1191e3c3 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -40,7 +40,7 @@ type AutoNATService struct { } // NewAutoNATService creates a new AutoNATService instance attached to a host -func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) (*AutoNATService, error) { +func NewAutoNATService(ctx context.Context, h host.Host, forceEnabled bool, opts ...libp2p.Option) (*AutoNATService, error) { opts = append(opts, libp2p.NoListenAddrs) dialer, err := libp2p.New(ctx, opts...) if err != nil { @@ -60,12 +60,15 @@ func NewAutoNATService(ctx context.Context, h host.Host, opts ...libp2p.Option) go func() { defer s.Close() - select { - case <-s.Out(): - h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) - go as.resetRateLimiter() - case <-ctx.Done(): + if !forceEnabled { + select { + case <-ctx.Done(): + return + case <-s.Out(): + } } + h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) + go as.resetRateLimiter() }() return as, nil diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index eec48f07c2..b666e7ef03 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -7,7 +7,6 @@ import ( "time" "github.com/libp2p/go-libp2p" - "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/peer" @@ -21,12 +20,10 @@ func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATS t.Fatal(err) } - as, err := NewAutoNATService(ctx, h) + as, err := NewAutoNATService(ctx, h, true) if err != nil { t.Fatal(err) } - emitPublic, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityPublic)) - emitPublic.Emit(event.EvtLocalRoutabilityPublic{}) return h, as } From 3a21c6dea31ead2c24df6a21e9867e8cc387d06e Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 26 Feb 2020 17:29:10 -0800 Subject: [PATCH 083/132] skip locally held addresses fix #44 --- p2p/host/autonat/svc.go | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 8c1191e3c3..6835e4d486 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -32,6 +32,7 @@ var ( // AutoNATService provides NAT autodetection services to other peers type AutoNATService struct { ctx context.Context + h host.Host dialer host.Host // rate limiter @@ -49,6 +50,7 @@ func NewAutoNATService(ctx context.Context, h host.Host, forceEnabled bool, opts as := &AutoNATService{ ctx: ctx, + h: h, dialer: dialer, reqs: make(map[peer.ID]int), } @@ -178,6 +180,13 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { return true } + // Skip dialing addresses we believe are the local node's + for _, localAddr := range as.h.Addrs() { + if localAddr.Equal(addr) { + return true + } + } + return false } From 3069cfec014b6d761b4a7255bd4e5df9465ca06f Mon Sep 17 00:00:00 2001 From: Will Scott Date: Tue, 3 Mar 2020 09:56:36 -0800 Subject: [PATCH 084/132] unadvertise autonat service when private. remove global request limit when forced on. --- p2p/host/autonat/svc.go | 62 ++++++++++++++++++++++++++--------------- 1 file changed, 39 insertions(+), 23 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 669c0eff11..3beda641e5 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -42,9 +42,10 @@ type AutoNATService struct { dialer host.Host // rate limiter - mx sync.Mutex - reqs map[peer.ID]int - globalReqs int + mx sync.Mutex + reqs map[peer.ID]int + globalReqMax int + globalReqs int } // NewAutoNATService creates a new AutoNATService instance attached to a host @@ -56,29 +57,20 @@ func NewAutoNATService(ctx context.Context, h host.Host, forceEnabled bool, opts } as := &AutoNATService{ - ctx: ctx, - h: h, - dialer: dialer, - reqs: make(map[peer.ID]int), + ctx: ctx, + h: h, + dialer: dialer, + globalReqMax: AutoNATGlobalThrottle, + reqs: make(map[peer.ID]int), } - s, err := h.EventBus().Subscribe(&event.EvtLocalRoutabilityPublic{}) - if err != nil { - return nil, err - } - - go func() { - defer s.Close() - if !forceEnabled { - select { - case <-ctx.Done(): - return - case <-s.Out(): - } - } + if forceEnabled { + as.globalReqMax = 0 h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) go as.resetRateLimiter() - }() + } else { + go as.enableWhenPublic() + } return as, nil } @@ -231,7 +223,7 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() count := as.reqs[pi.ID] - if count >= AutoNATServiceThrottle || as.globalReqs >= AutoNATGlobalThrottle { + if count >= AutoNATServiceThrottle || (as.globalReqMax > 0 && as.globalReqs >= as.globalReqMax) { as.mx.Unlock() return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") } @@ -264,6 +256,30 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { return newDialResponseOK(ra) } +func (as *AutoNATService) enableWhenPublic() { + pubSub, _ := as.h.EventBus().Subscribe(&event.EvtLocalRoutabilityPublic{}) + priSub, _ := as.h.EventBus().Subscribe(&event.EvtLocalRoutabilityPrivate{}) + defer pubSub.Close() + defer priSub.Close() + + running := false + + for { + select { + case <-pubSub.Out(): + as.h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) + if !running { + go as.resetRateLimiter() + running = true + } + case <-priSub.Out(): + as.h.RemoveStreamHandler(autonat.AutoNATProto) + case <-as.ctx.Done(): + return + } + } +} + func (as *AutoNATService) resetRateLimiter() { timer := time.NewTimer(AutoNATServiceResetInterval) defer timer.Stop() From b7f53da72e340c9ba4743ffab345e7e46edfde8e Mon Sep 17 00:00:00 2001 From: Will Scott Date: Tue, 3 Mar 2020 18:20:55 -0800 Subject: [PATCH 085/132] force net connection in autonat svc --- p2p/host/autonat/svc.go | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 3beda641e5..46fd301d08 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -14,6 +14,7 @@ import ( "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" + "github.com/libp2p/go-libp2p-core/peerstore" pb "github.com/libp2p/go-libp2p-autonat/pb" @@ -236,7 +237,8 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { as.dialer.Peerstore().ClearAddrs(pi.ID) - err := as.dialer.Connect(ctx, pi) + as.dialer.Peerstore().AddAddrs(pi.ID, pi.Addrs, peerstore.TempAddrTTL) + conn, err := as.dialer.Network().DialPeer(ctx, pi.ID) if err != nil { log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) // wait for the context to timeout to avoid leaking timing information @@ -245,13 +247,7 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { return newDialResponseError(pb.Message_E_DIAL_ERROR, "dial failed") } - conns := as.dialer.Network().ConnsToPeer(pi.ID) - if len(conns) == 0 { - log.Errorf("supposedly connected to %s, but no connection to peer", pi.ID.Pretty()) - return newDialResponseError(pb.Message_E_INTERNAL_ERROR, "internal service error") - } - - ra := conns[0].RemoteMultiaddr() + ra := conn.RemoteMultiaddr() as.dialer.Network().ClosePeer(pi.ID) return newDialResponseOK(ra) } From edaee9d512bc8cd66a32822b36b3768f725cdbf4 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 5 Mar 2020 00:15:56 -0800 Subject: [PATCH 086/132] update to single event type --- p2p/host/autonat/svc.go | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 46fd301d08..2475f03cb9 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -253,23 +253,27 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { } func (as *AutoNATService) enableWhenPublic() { - pubSub, _ := as.h.EventBus().Subscribe(&event.EvtLocalRoutabilityPublic{}) - priSub, _ := as.h.EventBus().Subscribe(&event.EvtLocalRoutabilityPrivate{}) - defer pubSub.Close() - defer priSub.Close() + sub, _ := as.h.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) + defer sub.Close() running := false for { select { - case <-pubSub.Out(): - as.h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) - if !running { - go as.resetRateLimiter() - running = true + case ev, ok := <-sub.Out(): + if !ok { + return + } + state := ev.(event.EvtLocalReachabilityChanged).Reachability + if state == network.ReachabilityPublic { + as.h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) + if !running { + go as.resetRateLimiter() + running = true + } + } else { + as.h.RemoveStreamHandler(autonat.AutoNATProto) } - case <-priSub.Out(): - as.h.RemoveStreamHandler(autonat.AutoNATProto) case <-as.ctx.Done(): return } From 41ac79c8352801dace673dc8479fdd5bee39ebd0 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Fri, 6 Mar 2020 11:27:34 -0800 Subject: [PATCH 087/132] mitigate race in test --- p2p/host/autonat/svc_test.go | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 979854d430..a36340913c 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -139,7 +139,6 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { func TestAutoNATServiceRateLimitJitter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) - defer cancel() save1 := AutoNATServiceResetInterval AutoNATServiceResetInterval = 100 * time.Millisecond @@ -147,12 +146,19 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { AutoNATServiceResetJitter = 100 * time.Millisecond _, svc := makeAutoNATService(ctx, t) + svc.mx.Lock() svc.globalReqs = 1 + svc.mx.Unlock() time.Sleep(200 * time.Millisecond) + + svc.mx.Lock() + defer svc.mx.Unlock() if svc.globalReqs != 0 { t.Fatal("reset of rate limitter occured slower than expected") } + cancel() + AutoNATServiceResetInterval = save1 AutoNATServiceResetJitter = save2 } From 43e6a96bdcd1b09ed6adf488a368c0f76f20367d Mon Sep 17 00:00:00 2001 From: Will Scott Date: Mon, 9 Mar 2020 16:25:55 -0700 Subject: [PATCH 088/132] additional tests --- p2p/host/autonat/svc.go | 21 ++++++-- p2p/host/autonat/svc_test.go | 93 ++++++++++++++++++++++++++++++++++++ 2 files changed, 109 insertions(+), 5 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 2475f03cb9..3f857b3058 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -27,12 +27,23 @@ import ( const P_CIRCUIT = 290 var ( - AutoNATServiceDialTimeout = 15 * time.Second + // AutoNATServiceDialTimeout defines how long to wait for connection + // attempts before failing. + AutoNATServiceDialTimeout = 15 * time.Second + // AutoNATServiceResetInterval defines how often to reset throttling. AutoNATServiceResetInterval = 1 * time.Minute - AutoNATServiceResetJitter = 15 * time.Second - - AutoNATServiceThrottle = 3 - AutoNATGlobalThrottle = 30 + // AutoNATServiceResetJitter defines the amplitude of randomness in throttle + // reset timing. + AutoNATServiceResetJitter = 15 * time.Second + + // AutoNATServiceThrottle defines how many times each ResetInterval a peer + // can ask for its autonat address. + AutoNATServiceThrottle = 3 + // AutoNATGlobalThrottle defines how many total autonat requests this + // service will answer each ResetInterval. + AutoNATGlobalThrottle = 30 + // AutoNATMaxPeerAddresses defines maximum number of addreses the autonat + // service will consider when attempting to connect to the peer. AutoNATMaxPeerAddresses = 16 ) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index a36340913c..9a19a7350c 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -7,7 +7,9 @@ import ( "time" "github.com/libp2p/go-libp2p" + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" autonat "github.com/libp2p/go-libp2p-autonat" @@ -137,6 +139,55 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { AutoNATServiceResetJitter = save5 } +func TestAutoNATServiceGlobalLimiter(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save1 := AutoNATServiceDialTimeout + AutoNATServiceDialTimeout = 1 * time.Second + save2 := AutoNATServiceResetInterval + AutoNATServiceResetInterval = 10 * time.Second + save3 := AutoNATServiceThrottle + AutoNATServiceThrottle = 1 + save4 := manet.Private4 + manet.Private4 = []*net.IPNet{} + save5 := AutoNATServiceResetJitter + AutoNATServiceResetJitter = 0 * time.Second + save6 := AutoNATGlobalThrottle + AutoNATGlobalThrottle = 5 + + hs, as := makeAutoNATService(ctx, t) + as.globalReqMax = 5 + + for i := 0; i < 5; i++ { + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + + _, err := ac.DialBack(ctx, hs.ID()) + if err != nil { + t.Fatal(err) + } + } + + hc, ac := makeAutoNATClient(ctx, t) + connect(t, hs, hc) + _, err := ac.DialBack(ctx, hs.ID()) + if err == nil { + t.Fatal("Dial back succeeded unexpectedly!") + } + + if !autonat.IsDialRefused(err) { + t.Fatal(err) + } + + AutoNATServiceDialTimeout = save1 + AutoNATServiceResetInterval = save2 + AutoNATServiceThrottle = save3 + manet.Private4 = save4 + AutoNATServiceResetJitter = save5 + AutoNATGlobalThrottle = save6 +} + func TestAutoNATServiceRateLimitJitter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) @@ -163,6 +214,48 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { AutoNATServiceResetJitter = save2 } +func TestAutoNATServiceStartup(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + save := manet.Private4 + manet.Private4 = []*net.IPNet{} + + h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) + if err != nil { + t.Fatal(err) + } + + _, err = NewAutoNATService(ctx, h, false) + if err != nil { + t.Fatal(err) + } + + eb, _ := h.EventBus().Emitter(new(event.EvtLocalReachabilityChanged)) + + hc, ac := makeAutoNATClient(ctx, t) + connect(t, h, hc) + + _, err = ac.DialBack(ctx, h.ID()) + if err == nil { + t.Fatal("autonat should not be started / advertising.") + } + + eb.Emit(event.EvtLocalReachabilityChanged{Reachability: network.ReachabilityPublic}) + _, err = ac.DialBack(ctx, h.ID()) + if err != nil { + t.Fatalf("autonat should be active, was %v", err) + } + + eb.Emit(event.EvtLocalReachabilityChanged{Reachability: network.ReachabilityPrivate}) + _, err = ac.DialBack(ctx, h.ID()) + if err == nil { + t.Fatal("autonat should not be started / advertising.") + } + + manet.Private4 = save +} + func TestAddrToIP(t *testing.T) { addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/0") if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.IPv4(127, 0, 0, 1)) { From 58172272ae26801a425a3045f249b596714d2300 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Tue, 10 Mar 2020 11:47:56 -0700 Subject: [PATCH 089/132] bump to new go-multiaddr-net --- p2p/host/autonat/svc.go | 25 ++----------------------- p2p/host/autonat/svc_test.go | 23 ----------------------- 2 files changed, 2 insertions(+), 46 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 3f857b3058..c492b1bd8d 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -2,7 +2,6 @@ package autonat import ( "context" - "fmt" "math/rand" "net" "sync" @@ -125,26 +124,6 @@ func (as *AutoNATService) handleStream(s network.Stream) { } } -// Optimistically extract the net.IP host from a multiaddress. -// TODO: use upstream manet.ToIP -func addrToIP(addr ma.Multiaddr) (net.IP, error) { - n, err := manet.ToNetAddr(addr) - if err != nil { - return nil, err - } - - switch netAddr := n.(type) { - case *net.UDPAddr: - return netAddr.IP, nil - case *net.TCPAddr: - return netAddr.IP, nil - case *net.IPAddr: - return netAddr.IP, nil - default: - return nil, fmt.Errorf("non IP Multiaddr: %T", netAddr) - } -} - func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { if mpi == nil { return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") @@ -170,7 +149,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me if !as.skipDial(obsaddr) { addrs = append(addrs, obsaddr) seen[obsaddr.String()] = struct{}{} - obsHost, _ = addrToIP(obsaddr) + obsHost, _ = manet.ToIP(obsaddr) } for _, maddr := range mpi.GetAddrs() { @@ -184,7 +163,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if ip, err := addrToIP(addr); err != nil || !obsHost.Equal(ip) { + if ip, err := manet.ToIP(addr); err != nil || !obsHost.Equal(ip) { continue } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 9a19a7350c..5e845c737f 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -13,7 +13,6 @@ import ( "github.com/libp2p/go-libp2p-core/peer" autonat "github.com/libp2p/go-libp2p-autonat" - ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) @@ -255,25 +254,3 @@ func TestAutoNATServiceStartup(t *testing.T) { manet.Private4 = save } - -func TestAddrToIP(t *testing.T) { - addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/0") - if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.IPv4(127, 0, 0, 1)) { - t.Fatal("addrToIP of ipv4 localhost incorrect!") - } - - addr, _ = ma.NewMultiaddr("/ip4/192.168.0.1/tcp/6") - if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.IPv4(192, 168, 0, 1)) { - t.Fatal("addrToIP of ipv4 incorrect!") - } - - addr, _ = ma.NewMultiaddr("/ip6zone/eth0/ip6/fe80::1") - if ip, err := addrToIP(addr); err != nil || !ip.Equal(net.ParseIP("fe80::1")) { - t.Fatal("addrToIP of ip6zone incorrect!") - } - - addr, _ = ma.NewMultiaddr("/unix/a/b/c/d") - if _, err := addrToIP(addr); err == nil { - t.Fatal("invalid addrToIP populates") - } -} From 96fc42d3d16da9ffc2129336e51adc1fa4c6cead Mon Sep 17 00:00:00 2001 From: Will Date: Wed, 11 Mar 2020 16:21:01 -0700 Subject: [PATCH 090/132] Simplify Autonat Structure * Single goroutine managing autonat-relevent events. * Watching incoming connections and local interface changes as signals. * Emit a single 'rechabilitychanged' persistent event fix #40 fix #36 fix #35 fix #34 fix #11 obsolete #28 obsolete #9 Co-authored-by: Aarsh Shah Co-authored-by: Adin Schmahmann --- p2p/host/autonat/autonat.go | 353 +++++++++++++++++-------------- p2p/host/autonat/autonat_test.go | 145 ++++++++++--- p2p/host/autonat/notify.go | 25 +-- 3 files changed, 321 insertions(+), 202 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 2d6c9786f9..951d12c06f 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -4,29 +4,17 @@ import ( "context" "errors" "math/rand" - "sync" + "sync/atomic" "time" "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" - "github.com/libp2p/go-libp2p-core/peerstore" - ma "github.com/multiformats/go-multiaddr" -) -// NATStatus is the state of NAT as detected by the ambient service. -type NATStatus int - -const ( - // NAT status is unknown; this means that the ambient service has not been - // able to decide the presence of NAT in the most recent attempt to test - // dial through known autonat peers. initial state. - NATStatusUnknown NATStatus = iota - // NAT status is publicly dialable - NATStatusPublic - // NAT status is private network - NATStatusPrivate + "github.com/libp2p/go-eventbus" + ma "github.com/multiformats/go-multiaddr" + manet "github.com/multiformats/go-multiaddr-net" ) var ( @@ -39,7 +27,7 @@ var ( // AutoNAT is the interface for ambient NAT autodiscovery type AutoNAT interface { // Status returns the current NAT status - Status() NATStatus + Status() network.Reachability // PublicAddr returns the public dial address when NAT status is public and an // error otherwise PublicAddr() (ma.Multiaddr, error) @@ -52,20 +40,27 @@ type AmbientAutoNAT struct { getAddrs GetAddrs - mx sync.Mutex - peers map[peer.ID][]ma.Multiaddr - status NATStatus - addr ma.Multiaddr + inboundConn chan network.Conn + observations chan autoNATResult + // status is an autoNATResult reflecting current status. + status atomic.Value // Reflects the confidence on of the NATStatus being private, as a single // dialback may fail for reasons unrelated to NAT. // If it is <3, then multiple autoNAT peers may be contacted for dialback // If only a single autoNAT peer is known, then the confidence increases // for each failure until it reaches 3. - confidence int + confidence int + lastInbound time.Time + lastProbe time.Time + + subAddrUpdated event.Subscription + + emitReachabilityChanged event.Emitter +} - emitUnknown event.Emitter - emitPublic event.Emitter - emitPrivate event.Emitter +type autoNATResult struct { + network.Reachability + address ma.Multiaddr } // NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host @@ -75,21 +70,22 @@ func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { getAddrs = h.Addrs } - emitUnknown, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityUnknown)) - emitPublic, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityPublic)) - emitPrivate, _ := h.EventBus().Emitter(new(event.EvtLocalRoutabilityPrivate)) + subAddrUpdated, _ := h.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) + + emitReachabilityChanged, _ := h.EventBus().Emitter(new(event.EvtLocalReachabilityChanged), eventbus.Stateful) as := &AmbientAutoNAT{ - ctx: ctx, - host: h, - getAddrs: getAddrs, - peers: make(map[peer.ID][]ma.Multiaddr), - status: NATStatusUnknown, - - emitUnknown: emitUnknown, - emitPublic: emitPublic, - emitPrivate: emitPrivate, + ctx: ctx, + host: h, + getAddrs: getAddrs, + inboundConn: make(chan network.Conn, 5), + observations: make(chan autoNATResult, 1), + + subAddrUpdated: subAddrUpdated, + + emitReachabilityChanged: emitReachabilityChanged, } + as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) h.Network().Notify(as) go as.background() @@ -97,177 +93,222 @@ func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { return as } -func (as *AmbientAutoNAT) Status() NATStatus { - as.mx.Lock() - defer as.mx.Unlock() - return as.status +// Status returns the AutoNAT observed reachability status. +func (as *AmbientAutoNAT) Status() network.Reachability { + s := as.status.Load().(autoNATResult) + return s.Reachability } -func (as *AmbientAutoNAT) updateStatus(s NATStatus) { - as.status = s - switch s { - case NATStatusUnknown: - as.emitUnknown.Emit(event.EvtLocalRoutabilityUnknown{}) - case NATStatusPublic: - as.emitPublic.Emit(event.EvtLocalRoutabilityPublic{}) - case NATStatusPrivate: - as.emitPrivate.Emit(event.EvtLocalRoutabilityPrivate{}) - } +func (as *AmbientAutoNAT) emitStatus() { + status := as.status.Load().(autoNATResult) + as.emitReachabilityChanged.Emit(event.EvtLocalReachabilityChanged{Reachability: status.Reachability}) } +// PublicAddr returns the publicly connectable Multiaddr of this node if one is known. func (as *AmbientAutoNAT) PublicAddr() (ma.Multiaddr, error) { - as.mx.Lock() - defer as.mx.Unlock() - - if as.status != NATStatusPublic { + s := as.status.Load().(autoNATResult) + if s.Reachability != network.ReachabilityPublic { return nil, errors.New("NAT Status is not public") } - return as.addr, nil + return s.address, nil +} + +func ipInList(candidate ma.Multiaddr, list []ma.Multiaddr) bool { + candidateIP, _ := manet.ToIP(candidate) + for _, i := range list { + if ip, err := manet.ToIP(i); err == nil && ip.Equal(candidateIP) { + return true + } + } + return false } func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection - select { - case <-time.After(AutoNATBootDelay): - case <-as.ctx.Done(): - return - } + delay := AutoNATBootDelay - for { - as.autodetect() + var lastAddrUpdated time.Time + addrUpdatedChan := as.subAddrUpdated.Out() + defer as.subAddrUpdated.Close() + defer as.emitReachabilityChanged.Close() - delay := AutoNATRefreshInterval - if as.status == NATStatusUnknown { - delay = AutoNATRetryInterval - } + timer := time.NewTimer(delay) + defer timer.Stop() + timerRunning := true + for { select { - case <-time.After(delay): + // new connection occured. + case conn := <-as.inboundConn: + localAddrs := as.host.Addrs() + ca := as.status.Load().(autoNATResult) + if ca.address != nil { + localAddrs = append(localAddrs, ca.address) + } + if !ipInList(conn.RemoteMultiaddr(), localAddrs) { + as.lastInbound = time.Now() + } + + case <-addrUpdatedChan: + if !lastAddrUpdated.Add(time.Second).After(time.Now()) { + lastAddrUpdated = time.Now() + if as.confidence > 1 { + as.confidence-- + } + } + + // probe finished. + case result, ok := <-as.observations: + if !ok { + return + } + as.recordObservation(result) + case <-timer.C: + timerRunning = false case <-as.ctx.Done(): return } - } -} - -func (as *AmbientAutoNAT) autodetect() { - peers := as.getPeers() - - if len(peers) == 0 { - log.Debugf("skipping NAT auto detection; no autonat peers") - return - } - - cli := NewAutoNATClient(as.host, as.getAddrs) - ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) - defer cancel() - var result struct { - sync.Mutex - private int - public int - pubaddr ma.Multiaddr + // Drain the timer channel if it hasn't fired in preparation for Resetting it. + if timerRunning && !timer.Stop() { + <-timer.C + } + timer.Reset(as.scheduleProbe()) + timerRunning = true } +} - probe := 3 - as.confidence - if probe == 0 { - probe = 1 - } - if probe > len(peers) { - probe = len(peers) +// scheduleProbe calculates when the next probe should be scheduled for, +// and launches it if that time is now. +func (as *AmbientAutoNAT) scheduleProbe() time.Duration { + // Our baseline is a probe every 'AutoNATRefreshInterval' + // This is modulated by: + // * recent inbound connections make us willing to wait up to 2x longer between probes. + // * low confidence makes us speed up between probes. + fixedNow := time.Now() + currentStatus := as.status.Load().(autoNATResult) + + nextProbe := fixedNow + if !as.lastProbe.IsZero() { + untilNext := AutoNATRefreshInterval + if currentStatus.Reachability == network.ReachabilityUnknown { + untilNext = AutoNATRetryInterval + } else if as.confidence < 3 { + untilNext = AutoNATRetryInterval + } else if currentStatus.Reachability == network.ReachabilityPublic && as.lastInbound.After(as.lastProbe) { + untilNext *= 2 + } + nextProbe = as.lastProbe.Add(untilNext) } - - var wg sync.WaitGroup - - for _, pi := range peers[:probe] { - wg.Add(1) - go func(pi peer.AddrInfo) { - defer wg.Done() - - as.host.Peerstore().AddAddrs(pi.ID, pi.Addrs, peerstore.TempAddrTTL) - a, err := cli.DialBack(ctx, pi.ID) - - switch { - case err == nil: - log.Debugf("Dialback through %s successful; public address is %s", pi.ID.Pretty(), a.String()) - result.Lock() - result.public++ - result.pubaddr = a - result.Unlock() - - case IsDialError(err): - log.Debugf("Dialback through %s failed", pi.ID.Pretty()) - result.Lock() - result.private++ - result.Unlock() - - default: - log.Debugf("Dialback error through %s: %s", pi.ID.Pretty(), err) - } - }(pi) + if fixedNow.After(nextProbe) || fixedNow == nextProbe { + go as.probeNextPeer() + return AutoNATRetryInterval } + return nextProbe.Sub(fixedNow) +} - wg.Wait() - - as.mx.Lock() - if result.public > 0 { +// Update the current status based on an observed result. +func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { + currentStatus := as.status.Load().(autoNATResult) + if observation.Reachability == network.ReachabilityPublic { log.Debugf("NAT status is public") - if as.status == NATStatusPrivate { + changed := false + if currentStatus.Reachability != network.ReachabilityPublic { // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 + changed = true } else if as.confidence < 3 { as.confidence++ } - as.addr = result.pubaddr - as.updateStatus(NATStatusPublic) - } else if result.private > 0 { + if observation.address != nil { + if !changed && currentStatus.address != nil && !observation.address.Equal(currentStatus.address) { + as.confidence-- + } + if currentStatus.address == nil || !observation.address.Equal(currentStatus.address) { + changed = true + } + as.status.Store(observation) + } + if observation.address != nil && changed { + as.emitStatus() + } + } else if observation.Reachability == network.ReachabilityPrivate { log.Debugf("NAT status is private") - if as.status == NATStatusPublic { - // we are flipping our NATStatus, so confidence drops to 0 - as.confidence = 0 + if currentStatus.Reachability == network.ReachabilityPublic { + if as.confidence > 0 { + as.confidence-- + } else { + // we are flipping our NATStatus, so confidence drops to 0 + as.confidence = 0 + as.status.Store(observation) + as.emitStatus() + } } else if as.confidence < 3 { as.confidence++ + as.status.Store(observation) + if currentStatus.Reachability != network.ReachabilityPrivate { + as.emitStatus() + } } - as.addr = nil - as.updateStatus(NATStatusPrivate) } else if as.confidence > 0 { // don't just flip to unknown, reduce confidence first as.confidence-- } else { log.Debugf("NAT status is unknown") - as.addr = nil - as.updateStatus(NATStatusUnknown) + as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) + if currentStatus.Reachability != network.ReachabilityUnknown { + as.emitStatus() + } } - as.mx.Unlock() } -func (as *AmbientAutoNAT) getPeers() []peer.AddrInfo { - as.mx.Lock() - defer as.mx.Unlock() +func (as *AmbientAutoNAT) probe(pi *peer.AddrInfo) { + cli := NewAutoNATClient(as.host, as.getAddrs) + ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) + defer cancel() + + a, err := cli.DialBack(ctx, pi.ID) + + switch { + case err == nil: + log.Debugf("Dialback through %s successful; public address is %s", pi.ID.Pretty(), a.String()) + as.observations <- autoNATResult{network.ReachabilityPublic, a} + case IsDialError(err): + log.Debugf("Dialback through %s failed", pi.ID.Pretty()) + as.observations <- autoNATResult{network.ReachabilityPrivate, nil} + default: + as.observations <- autoNATResult{network.ReachabilityUnknown, nil} + } +} - if len(as.peers) == 0 { - return nil +func (as *AmbientAutoNAT) probeNextPeer() { + peers := as.host.Network().Peers() + if len(peers) == 0 { + return } - var connected, others []peer.AddrInfo + addrs := make([]peer.AddrInfo, 0, len(peers)) - for p, addrs := range as.peers { - if as.host.Network().Connectedness(p) == network.Connected { - connected = append(connected, peer.AddrInfo{ID: p, Addrs: addrs}) - } else { - others = append(others, peer.AddrInfo{ID: p, Addrs: addrs}) + for _, p := range peers { + info := as.host.Peerstore().PeerInfo(p) + // Exclude peers which don't support the autonat protocol. + if proto, err := as.host.Peerstore().SupportsProtocols(p, AutoNATProto); len(proto) == 0 || err != nil { + continue } + addrs = append(addrs, info) } + // TODO: track and exclude recently probed peers. - shufflePeers(connected) - - if len(connected) < 3 { - shufflePeers(others) - return append(connected, others...) - } else { - return connected + if len(addrs) == 0 { + return } + + shufflePeers(addrs) + + as.lastProbe = time.Now() + as.probe(&addrs[0]) } func shufflePeers(peers []peer.AddrInfo) { diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 74a429ca4f..ddf6d5cde2 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -18,7 +18,7 @@ import ( ) func init() { - AutoNATBootDelay = 1 * time.Second + AutoNATBootDelay = 100 * time.Millisecond AutoNATRefreshInterval = 1 * time.Second AutoNATRetryInterval = 1 * time.Second AutoNATIdentifyDelay = 100 * time.Millisecond @@ -73,10 +73,9 @@ func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Mes func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) + h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) a := NewAutoNAT(ctx, h, nil) - a.(*AmbientAutoNAT).mx.Lock() - a.(*AmbientAutoNAT).peers[ash.ID()] = ash.Addrs() - a.(*AmbientAutoNAT).mx.Unlock() return h, a } @@ -88,6 +87,19 @@ func connect(t *testing.T, a, b host.Host) { } } +func expectEvent(t *testing.T, s event.Subscription, expected network.Reachability) { + select { + case e := <-s.Out(): + ev, ok := e.(event.EvtLocalReachabilityChanged) + if !ok || ev.Reachability != expected { + t.Fatal("got wrong event type from the bus") + } + + case <-time.After(100 * time.Millisecond): + t.Fatal("failed to get the reachability event from the bus") + } +} + // tests func TestAutoNATPrivate(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) @@ -97,37 +109,57 @@ func TestAutoNATPrivate(t *testing.T) { hc, an := makeAutoNAT(ctx, t, hs) // subscribe to AutoNat events - s, err := hc.EventBus().Subscribe(&event.EvtLocalRoutabilityPrivate{}) + s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) if err != nil { - t.Fatalf("failed to subscribe to event EvtLocalRoutabilityPrivate, err=%s", err) + t.Fatalf("failed to subscribe to event EvtLocalReachabilityChanged, err=%s", err) } status := an.Status() - if status != NATStatusUnknown { + if status != network.ReachabilityUnknown { t.Fatalf("unexpected NAT status: %d", status) } connect(t, hs, hc) - time.Sleep(2 * time.Second) + time.Sleep(1 * time.Second) status = an.Status() - if status != NATStatusPrivate { + if status != network.ReachabilityPrivate { t.Fatalf("unexpected NAT status: %d", status) } - select { - case e := <-s.Out(): - _, ok := e.(event.EvtLocalRoutabilityPrivate) - if !ok { - t.Fatal("got wrong event type from the bus") - } + expectEvent(t, s, network.ReachabilityPrivate) +} + +func TestAutoNATPublic(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() - case <-time.After(1 * time.Second): - t.Fatal("failed to get the EvtLocalRoutabilityPrivate event from the bus") + hs := makeAutoNATServicePublic(ctx, t) + hc, an := makeAutoNAT(ctx, t, hs) + + // subscribe to AutoNat events + s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) + if err != nil { + t.Fatalf("failed to subscribe to event EvtLocalReachabilityChanged, err=%s", err) } + + status := an.Status() + if status != network.ReachabilityUnknown { + t.Fatalf("unexpected NAT status: %d", status) + } + + connect(t, hs, hc) + time.Sleep(200 * time.Millisecond) + + status = an.Status() + if status != network.ReachabilityPublic { + t.Fatalf("unexpected NAT status: %d", status) + } + + expectEvent(t, s, network.ReachabilityPublic) } -func TestAutoNATPublic(t *testing.T) { +func TestAutoNATPublictoPrivate(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() @@ -135,32 +167,89 @@ func TestAutoNATPublic(t *testing.T) { hc, an := makeAutoNAT(ctx, t, hs) // subscribe to AutoNat events - s, err := hc.EventBus().Subscribe(&event.EvtLocalRoutabilityPublic{}) + s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) if err != nil { t.Fatalf("failed to subscribe to event EvtLocalRoutabilityPublic, err=%s", err) } status := an.Status() - if status != NATStatusUnknown { + if status != network.ReachabilityUnknown { t.Fatalf("unexpected NAT status: %d", status) } connect(t, hs, hc) + time.Sleep(200 * time.Millisecond) + + status = an.Status() + if status != network.ReachabilityPublic { + t.Fatalf("unexpected NAT status: %d", status) + } + + expectEvent(t, s, network.ReachabilityPublic) + + hs.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) time.Sleep(2 * time.Second) status = an.Status() - if status != NATStatusPublic { + if status != network.ReachabilityPrivate { t.Fatalf("unexpected NAT status: %d", status) } +} + +func TestAutoNATObservationRecording(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + hs := makeAutoNATServicePublic(ctx, t) + hc, ani := makeAutoNAT(ctx, t, hs) + an := ani.(*AmbientAutoNAT) + + s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) + if err != nil { + t.Fatalf("failed to subscribe to event EvtLocalRoutabilityPublic, err=%s", err) + } + + // pubic observation without address should be ignored. + an.recordObservation(autoNATResult{network.ReachabilityPublic, nil}) + if an.Status() != network.ReachabilityUnknown { + t.Fatalf("unexpected transition") + } select { - case e := <-s.Out(): - _, ok := e.(event.EvtLocalRoutabilityPublic) - if !ok { - t.Fatal("got wrong event type from the bus") - } + case _ = <-s.Out(): + t.Fatal("not expecting a public reachability event") + default: + //expected + } + + addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/udp/1234") + an.recordObservation(autoNATResult{network.ReachabilityPublic, addr}) + if an.Status() != network.ReachabilityPublic { + t.Fatalf("failed to transition to public.") + } - case <-time.After(1 * time.Second): - t.Fatal("failed to get the EvtLocalRoutabilityPublic event from the bus") + expectEvent(t, s, network.ReachabilityPublic) + + // a single recording should have confidence still at 0, and transition to private quickly. + an.recordObservation(autoNATResult{network.ReachabilityPrivate, nil}) + if an.Status() != network.ReachabilityPrivate { + t.Fatalf("failed to transition to private.") + } + + expectEvent(t, s, network.ReachabilityPrivate) + + // stronger public confidence should be harder to undo. + an.recordObservation(autoNATResult{network.ReachabilityPublic, addr}) + an.recordObservation(autoNATResult{network.ReachabilityPublic, addr}) + if an.Status() != network.ReachabilityPublic { + t.Fatalf("failed to transition to public.") } + + expectEvent(t, s, network.ReachabilityPublic) + + an.recordObservation(autoNATResult{network.ReachabilityPrivate, nil}) + if an.Status() != network.ReachabilityPublic { + t.Fatalf("too-extreme private transition.") + } + } diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 4ea6561603..ed8d8702dc 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -6,6 +6,7 @@ import ( "github.com/libp2p/go-libp2p-core/network" ma "github.com/multiformats/go-multiaddr" + manet "github.com/multiformats/go-multiaddr-net" ) var _ network.Notifiee = (*AmbientAutoNAT)(nil) @@ -18,25 +19,13 @@ func (as *AmbientAutoNAT) OpenedStream(net network.Network, s network.Stream) {} func (as *AmbientAutoNAT) ClosedStream(net network.Network, s network.Stream) {} func (as *AmbientAutoNAT) Connected(net network.Network, c network.Conn) { - p := c.RemotePeer() - - go func() { - // add some delay for identify - time.Sleep(AutoNATIdentifyDelay) - - protos, err := as.host.Peerstore().SupportsProtocols(p, AutoNATProto) - if err != nil { - log.Debugf("error retrieving supported protocols for peer %s: %s", p, err) - return - } - - if len(protos) > 0 { - log.Infof("Discovered AutoNAT peer %s", p.Pretty()) - as.mx.Lock() - as.peers[p] = as.host.Peerstore().Addrs(p) - as.mx.Unlock() + if c.Stat().Direction == network.DirInbound && + manet.IsPublicAddr(c.RemoteMultiaddr()) { + select { + case as.inboundConn <- c: + default: } - }() + } } func (as *AmbientAutoNAT) Disconnected(net network.Network, c network.Conn) {} From eee717b1d836b4ae272c593f2c4732154d5dd59d Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 12 Mar 2020 08:39:56 -0700 Subject: [PATCH 091/132] change autonat interface to use functional options --- p2p/host/autonat/autonat.go | 57 ++++++++++++++------------------ p2p/host/autonat/autonat_test.go | 9 +---- p2p/host/autonat/client.go | 12 +------ p2p/host/autonat/interface.go | 32 ++++++++++++++++++ p2p/host/autonat/notify.go | 4 --- p2p/host/autonat/options.go | 57 ++++++++++++++++++++++++++++++++ 6 files changed, 116 insertions(+), 55 deletions(-) create mode 100644 p2p/host/autonat/interface.go create mode 100644 p2p/host/autonat/options.go diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 951d12c06f..a159f9b696 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -17,28 +17,12 @@ import ( manet "github.com/multiformats/go-multiaddr-net" ) -var ( - AutoNATBootDelay = 15 * time.Second - AutoNATRetryInterval = 90 * time.Second - AutoNATRefreshInterval = 15 * time.Minute - AutoNATRequestTimeout = 30 * time.Second -) - -// AutoNAT is the interface for ambient NAT autodiscovery -type AutoNAT interface { - // Status returns the current NAT status - Status() network.Reachability - // PublicAddr returns the public dial address when NAT status is public and an - // error otherwise - PublicAddr() (ma.Multiaddr, error) -} - // AmbientAutoNAT is the implementation of ambient NAT autodiscovery type AmbientAutoNAT struct { ctx context.Context host host.Host - getAddrs GetAddrs + *config inboundConn chan network.Conn observations chan autoNATResult @@ -63,21 +47,30 @@ type autoNATResult struct { address ma.Multiaddr } -// NewAutoNAT creates a new ambient NAT autodiscovery instance attached to a host -// If getAddrs is nil, h.Addrs will be used -func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { - if getAddrs == nil { - getAddrs = h.Addrs +// New creates a new NAT autodiscovery system attached to a host +func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { + conf := new(config) + + if err := defaults(conf); err != nil { + return nil, err + } + if conf.getAddressFunc == nil { + conf.getAddressFunc = h.Addrs } - subAddrUpdated, _ := h.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) + for _, o := range options { + if err := o(conf); err != nil { + return nil, err + } + } + subAddrUpdated, _ := h.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) emitReachabilityChanged, _ := h.EventBus().Emitter(new(event.EvtLocalReachabilityChanged), eventbus.Stateful) as := &AmbientAutoNAT{ ctx: ctx, host: h, - getAddrs: getAddrs, + config: conf, inboundConn: make(chan network.Conn, 5), observations: make(chan autoNATResult, 1), @@ -90,7 +83,7 @@ func NewAutoNAT(ctx context.Context, h host.Host, getAddrs GetAddrs) AutoNAT { h.Network().Notify(as) go as.background() - return as + return as, nil } // Status returns the AutoNAT observed reachability status. @@ -127,7 +120,7 @@ func ipInList(candidate ma.Multiaddr, list []ma.Multiaddr) bool { func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection - delay := AutoNATBootDelay + delay := as.config.bootDelay var lastAddrUpdated time.Time addrUpdatedChan := as.subAddrUpdated.Out() @@ -192,11 +185,11 @@ func (as *AmbientAutoNAT) scheduleProbe() time.Duration { nextProbe := fixedNow if !as.lastProbe.IsZero() { - untilNext := AutoNATRefreshInterval + untilNext := as.config.refreshInterval if currentStatus.Reachability == network.ReachabilityUnknown { - untilNext = AutoNATRetryInterval + untilNext = as.config.retryInterval } else if as.confidence < 3 { - untilNext = AutoNATRetryInterval + untilNext = as.config.retryInterval } else if currentStatus.Reachability == network.ReachabilityPublic && as.lastInbound.After(as.lastProbe) { untilNext *= 2 } @@ -204,7 +197,7 @@ func (as *AmbientAutoNAT) scheduleProbe() time.Duration { } if fixedNow.After(nextProbe) || fixedNow == nextProbe { go as.probeNextPeer() - return AutoNATRetryInterval + return as.config.retryInterval } return nextProbe.Sub(fixedNow) } @@ -265,8 +258,8 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { } func (as *AmbientAutoNAT) probe(pi *peer.AddrInfo) { - cli := NewAutoNATClient(as.host, as.getAddrs) - ctx, cancel := context.WithTimeout(as.ctx, AutoNATRequestTimeout) + cli := NewAutoNATClient(as.host, as.config.getAddressFunc) + ctx, cancel := context.WithTimeout(as.ctx, as.config.requestTimeout) defer cancel() a, err := cli.DialBack(ctx, pi.ID) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index ddf6d5cde2..0304cf324f 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -17,13 +17,6 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -func init() { - AutoNATBootDelay = 100 * time.Millisecond - AutoNATRefreshInterval = 1 * time.Second - AutoNATRetryInterval = 1 * time.Second - AutoNATIdentifyDelay = 100 * time.Millisecond -} - // these are mock service implementations for testing func makeAutoNATServicePrivate(ctx context.Context, t *testing.T) host.Host { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) @@ -75,7 +68,7 @@ func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, A h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) - a := NewAutoNAT(ctx, h, nil) + a, _ := New(ctx, h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) return h, a } diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 0d8549b48a..e2acab178e 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -14,25 +14,15 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -// AutoNATClient is a stateless client interface to AutoNAT peers -type AutoNATClient interface { - // DialBack requests from a peer providing AutoNAT services to test dial back - // and report the address on a successful connection. - DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) -} - // AutoNATError is the class of errors signalled by AutoNAT services type AutoNATError struct { Status pb.Message_ResponseStatus Text string } -// GetAddrs is a function that returns the addresses to dial back -type GetAddrs func() []ma.Multiaddr - // NewAutoNATClient creates a fresh instance of an AutoNATClient // If getAddrs is nil, h.Addrs will be used -func NewAutoNATClient(h host.Host, getAddrs GetAddrs) AutoNATClient { +func NewAutoNATClient(h host.Host, getAddrs GetAddrs) Client { if getAddrs == nil { getAddrs = h.Addrs } diff --git a/p2p/host/autonat/interface.go b/p2p/host/autonat/interface.go new file mode 100644 index 0000000000..af010b98e6 --- /dev/null +++ b/p2p/host/autonat/interface.go @@ -0,0 +1,32 @@ +package autonat + +import ( + "context" + + "github.com/libp2p/go-libp2p-core/network" + "github.com/libp2p/go-libp2p-core/peer" + + ma "github.com/multiformats/go-multiaddr" +) + +// AutoNAT is the interface for NAT autodiscovery +type AutoNAT interface { + // Status returns the current NAT status + Status() network.Reachability + // PublicAddr returns the public dial address when NAT status is public and an + // error otherwise + PublicAddr() (ma.Multiaddr, error) +} + +// Client is a stateless client interface to AutoNAT peers +type Client interface { + // DialBack requests from a peer providing AutoNAT services to test dial back + // and report the address on a successful connection. + DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) +} + +// GetAddrs is a function returning the candidate addresses for the local host. +type GetAddrs func() []ma.Multiaddr + +// Option is an Autonat option for configuration +type Option func(*config) error diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index ed8d8702dc..a444df62db 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -1,8 +1,6 @@ package autonat import ( - "time" - "github.com/libp2p/go-libp2p-core/network" ma "github.com/multiformats/go-multiaddr" @@ -11,8 +9,6 @@ import ( var _ network.Notifiee = (*AmbientAutoNAT)(nil) -var AutoNATIdentifyDelay = 5 * time.Second - func (as *AmbientAutoNAT) Listen(net network.Network, a ma.Multiaddr) {} func (as *AmbientAutoNAT) ListenClose(net network.Network, a ma.Multiaddr) {} func (as *AmbientAutoNAT) OpenedStream(net network.Network, s network.Stream) {} diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go new file mode 100644 index 0000000000..4d753495d8 --- /dev/null +++ b/p2p/host/autonat/options.go @@ -0,0 +1,57 @@ +package autonat + +import ( + "time" +) + +// config holds configurable options for the autonat subsystem. +type config struct { + getAddressFunc GetAddrs + bootDelay time.Duration + retryInterval time.Duration + refreshInterval time.Duration + requestTimeout time.Duration +} + +var defaults = func(c *config) error { + c.bootDelay = 15 * time.Second + c.retryInterval = 90 * time.Second + c.refreshInterval = 15 * time.Minute + c.requestTimeout = 30 * time.Second + + return nil +} + +// WithAddresses allows overriding which Addresses the AutoNAT client beliieves +// are "its own". Useful for testing, or for more exotic port-forwarding +// scenarios where the host may be listening on different ports than it wants +// to externally advertise or verify connectability on. +func WithAddresses(addrFunc GetAddrs) Option { + return func(c *config) error { + c.getAddressFunc = addrFunc + return nil + } +} + +// WithSchedule configures how agressively probes will be made to verify the +// address of the host. retryInterval indicates how often probes should be made +// when the host lacks confident about its address, while refresh interval +// is the schedule of periodic probes when the host believes it knows its +// steady-state reachability. +func WithSchedule(retryInterval, refreshInterval time.Duration) Option { + return func(c *config) error { + c.retryInterval = retryInterval + c.refreshInterval = refreshInterval + return nil + } +} + +// WithoutStartupDelay removes the initial delay the NAT subsystem typically +// uses as a buffer for ensuring that connectivity and guesses as to the hosts +// local interfaces have settled down during startup. +func WithoutStartupDelay() Option { + return func(c *config) error { + c.bootDelay = 1 + return nil + } +} From 4548d1e922716ee7e47f4f645f009e286df39061 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 12 Mar 2020 11:45:22 -0700 Subject: [PATCH 092/132] remove a foot-gun --- p2p/host/autonat/options.go | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go index 4d753495d8..6987d3aba6 100644 --- a/p2p/host/autonat/options.go +++ b/p2p/host/autonat/options.go @@ -1,6 +1,7 @@ package autonat import ( + "errors" "time" ) @@ -28,6 +29,9 @@ var defaults = func(c *config) error { // to externally advertise or verify connectability on. func WithAddresses(addrFunc GetAddrs) Option { return func(c *config) error { + if addrFunc == nil { + return errors.New("invalid address function supplied") + } c.getAddressFunc = addrFunc return nil } From e1841d877ef1f03207f8d3a5736fe55a7ec52f4a Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 12 Mar 2020 16:57:21 -0700 Subject: [PATCH 093/132] Integrate service into autonat --- p2p/host/autonat/autonat.go | 35 +- p2p/host/autonat/autonat_test.go | 14 - p2p/host/autonat/client.go | 14 +- p2p/host/autonat/interface.go | 4 +- p2p/host/autonat/options.go | 78 ++++- p2p/host/autonat/proto.go | 5 +- p2p/host/autonat/svc.go | 134 +++----- p2p/host/autonat/svc_test.go | 171 ++++------ p2p/host/autonat/test/autonat_test.go | 60 ++++ p2p/host/autonat/test/go.mod | 23 ++ p2p/host/autonat/test/go.sum | 471 ++++++++++++++++++++++++++ 11 files changed, 779 insertions(+), 230 deletions(-) create mode 100644 p2p/host/autonat/test/autonat_test.go create mode 100644 p2p/host/autonat/test/go.mod create mode 100644 p2p/host/autonat/test/go.sum diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index a159f9b696..6156d0cbc5 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -7,16 +7,19 @@ import ( "sync/atomic" "time" + "github.com/libp2p/go-eventbus" "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" - "github.com/libp2p/go-eventbus" + logging "github.com/ipfs/go-log" ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) +var log = logging.Logger("autonat") + // AmbientAutoNAT is the implementation of ambient NAT autodiscovery type AmbientAutoNAT struct { ctx context.Context @@ -38,6 +41,8 @@ type AmbientAutoNAT struct { lastProbe time.Time subAddrUpdated event.Subscription + service *autoNATService + serviceCancel context.CancelFunc emitReachabilityChanged event.Emitter } @@ -50,12 +55,13 @@ type autoNATResult struct { // New creates a new NAT autodiscovery system attached to a host func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { conf := new(config) + conf.host = h if err := defaults(conf); err != nil { return nil, err } - if conf.getAddressFunc == nil { - conf.getAddressFunc = h.Addrs + if conf.addressFunc == nil { + conf.addressFunc = h.Addrs } for _, o := range options { @@ -83,6 +89,14 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { h.Network().Notify(as) go as.background() + if conf.dialer != nil { + var err error + as.service, err = newAutoNATService(ctx, conf) + if err != nil { + return nil, err + } + } + return as, nil } @@ -211,6 +225,11 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { if currentStatus.Reachability != network.ReachabilityPublic { // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 + if as.service != nil && !as.config.forceServer { + ctx, cancel := context.WithCancel(as.ctx) + go as.service.Enable(ctx) + as.serviceCancel = cancel + } changed = true } else if as.confidence < 3 { as.confidence++ @@ -236,6 +255,10 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 as.status.Store(observation) + if as.serviceCancel != nil { + as.serviceCancel() + as.serviceCancel = nil + } as.emitStatus() } } else if as.confidence < 3 { @@ -252,13 +275,17 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { log.Debugf("NAT status is unknown") as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) if currentStatus.Reachability != network.ReachabilityUnknown { + if as.serviceCancel != nil { + as.serviceCancel() + as.serviceCancel = nil + } as.emitStatus() } } } func (as *AmbientAutoNAT) probe(pi *peer.AddrInfo) { - cli := NewAutoNATClient(as.host, as.config.getAddressFunc) + cli := NewAutoNATClient(as.host, as.config.addressFunc) ctx, cancel := context.WithTimeout(as.ctx, as.config.requestTimeout) defer cancel() diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 0304cf324f..c6bca8dd34 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -50,20 +50,6 @@ func sayAutoNATPublic(s network.Stream) { w.WriteMsg(&res) } -func newDialResponseOK(addr ma.Multiaddr) *pb.Message_DialResponse { - dr := new(pb.Message_DialResponse) - dr.Status = pb.Message_OK.Enum() - dr.Addr = addr.Bytes() - return dr -} - -func newDialResponseError(status pb.Message_ResponseStatus, text string) *pb.Message_DialResponse { - dr := new(pb.Message_DialResponse) - dr.Status = status.Enum() - dr.StatusText = &text - return dr -} - func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index e2acab178e..b86f17a874 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -21,17 +21,17 @@ type AutoNATError struct { } // NewAutoNATClient creates a fresh instance of an AutoNATClient -// If getAddrs is nil, h.Addrs will be used -func NewAutoNATClient(h host.Host, getAddrs GetAddrs) Client { - if getAddrs == nil { - getAddrs = h.Addrs +// If addrFunc is nil, h.Addrs will be used +func NewAutoNATClient(h host.Host, addrFunc AddrFunc) Client { + if addrFunc == nil { + addrFunc = h.Addrs } - return &client{h: h, getAddrs: getAddrs} + return &client{h: h, addrFunc: addrFunc} } type client struct { h host.Host - getAddrs GetAddrs + addrFunc AddrFunc } func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) { @@ -46,7 +46,7 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) r := ggio.NewDelimitedReader(s, network.MessageSizeMax) w := ggio.NewDelimitedWriter(s) - req := newDialMessage(peer.AddrInfo{ID: c.h.ID(), Addrs: c.getAddrs()}) + req := newDialMessage(peer.AddrInfo{ID: c.h.ID(), Addrs: c.addrFunc()}) err = w.WriteMsg(req) if err != nil { s.Reset() diff --git a/p2p/host/autonat/interface.go b/p2p/host/autonat/interface.go index af010b98e6..0d84f96284 100644 --- a/p2p/host/autonat/interface.go +++ b/p2p/host/autonat/interface.go @@ -25,8 +25,8 @@ type Client interface { DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } -// GetAddrs is a function returning the candidate addresses for the local host. -type GetAddrs func() []ma.Multiaddr +// AddrFunc is a function returning the candidate addresses for the local host. +type AddrFunc func() []ma.Multiaddr // Option is an Autonat option for configuration type Option func(*config) error diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go index 6987d3aba6..5ed6ee7578 100644 --- a/p2p/host/autonat/options.go +++ b/p2p/host/autonat/options.go @@ -3,15 +3,32 @@ package autonat import ( "errors" "time" + + "github.com/libp2p/go-libp2p-core/host" + "github.com/libp2p/go-libp2p-core/network" ) // config holds configurable options for the autonat subsystem. type config struct { - getAddressFunc GetAddrs + host host.Host + + addressFunc AddrFunc + dialer network.Network + forceServer bool + + // client bootDelay time.Duration retryInterval time.Duration refreshInterval time.Duration requestTimeout time.Duration + + // server + dialTimeout time.Duration + maxPeerAddresses int + throttleGlobalMax int + throttlePeerMax int + throttleResetPeriod time.Duration + throttleResetJitter time.Duration } var defaults = func(c *config) error { @@ -20,19 +37,42 @@ var defaults = func(c *config) error { c.refreshInterval = 15 * time.Minute c.requestTimeout = 30 * time.Second + c.dialTimeout = 15 * time.Second + c.maxPeerAddresses = 16 + c.throttleGlobalMax = 30 + c.throttlePeerMax = 3 + c.throttleResetPeriod = 1 * time.Minute + c.throttleResetJitter = 15 * time.Second return nil } -// WithAddresses allows overriding which Addresses the AutoNAT client beliieves +// EnableService specifies that AutoNAT should be allowed to run a NAT service to help +// other peers determine their own NAT status. The provided Network should not be the +// default network/dialer of the host passed to `New`, as the NAT system will need to +// make parallel connections, and as such will modify both the associated peerstore +// and terminate connections of this dialer. The dialer provided +// should be compatible (TCP/UDP) however with the transports of the libp2p network. +func EnableService(dialer network.Network, forceServer bool) Option { + return func(c *config) error { + if dialer == c.host.Network() || dialer.Peerstore() == c.host.Peerstore() { + return errors.New("dialer should not be that of the host") + } + c.dialer = dialer + c.forceServer = forceServer + return nil + } +} + +// UsingAddresses allows overriding which Addresses the AutoNAT client believes // are "its own". Useful for testing, or for more exotic port-forwarding // scenarios where the host may be listening on different ports than it wants // to externally advertise or verify connectability on. -func WithAddresses(addrFunc GetAddrs) Option { +func UsingAddresses(addrFunc AddrFunc) Option { return func(c *config) error { if addrFunc == nil { return errors.New("invalid address function supplied") } - c.getAddressFunc = addrFunc + c.addressFunc = addrFunc return nil } } @@ -59,3 +99,33 @@ func WithoutStartupDelay() Option { return nil } } + +// WithoutThrottling indicates that this autonat service should not place +// restrictions on how many peers it is willing to help when acting as +// a server. +func WithoutThrottling() Option { + return func(c *config) error { + c.throttleGlobalMax = 0 + return nil + } +} + +// WithThrottling specifies how many peers (`amount`) it is willing to help +// ever `interval` amount of time when acting as a server. +func WithThrottling(amount int, interval time.Duration) Option { + return func(c *config) error { + c.throttleGlobalMax = amount + c.throttleResetPeriod = interval + c.throttleResetJitter = interval / 4 + return nil + } +} + +// WithPeerThrottling specifies a limit for the maximum number of IP checks +// this node will provide to an individual peer in each `interval`. +func WithPeerThrottling(amount int) Option { + return func(c *config) error { + c.throttlePeerMax = amount + return nil + } +} diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index 4699cd17a1..cf5be81ad9 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -5,14 +5,11 @@ import ( "github.com/libp2p/go-libp2p-core/peer" - logging "github.com/ipfs/go-log" ma "github.com/multiformats/go-multiaddr" ) const AutoNATProto = "/libp2p/autonat/1.0.0" -var log = logging.Logger("autonat") - func newDialMessage(pi peer.AddrInfo) *pb.Message { msg := new(pb.Message) msg.Type = pb.Message_DIAL.Enum() @@ -25,7 +22,7 @@ func newDialMessage(pi peer.AddrInfo) *pb.Message { } return msg -) +} func newDialResponseOK(addr ma.Multiaddr) *pb.Message_DialResponse { dr := new(pb.Message_DialResponse) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index c492b1bd8d..d55beacc37 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -2,15 +2,13 @@ package autonat import ( "context" + "errors" "math/rand" "net" "sync" "time" - "github.com/libp2p/go-libp2p" - "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/helpers" - "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" "github.com/libp2p/go-libp2p-core/peerstore" @@ -18,75 +16,44 @@ import ( pb "github.com/libp2p/go-libp2p-autonat/pb" ggio "github.com/gogo/protobuf/io" - autonat "github.com/libp2p/go-libp2p-autonat" ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) const P_CIRCUIT = 290 -var ( - // AutoNATServiceDialTimeout defines how long to wait for connection - // attempts before failing. - AutoNATServiceDialTimeout = 15 * time.Second - // AutoNATServiceResetInterval defines how often to reset throttling. - AutoNATServiceResetInterval = 1 * time.Minute - // AutoNATServiceResetJitter defines the amplitude of randomness in throttle - // reset timing. - AutoNATServiceResetJitter = 15 * time.Second - - // AutoNATServiceThrottle defines how many times each ResetInterval a peer - // can ask for its autonat address. - AutoNATServiceThrottle = 3 - // AutoNATGlobalThrottle defines how many total autonat requests this - // service will answer each ResetInterval. - AutoNATGlobalThrottle = 30 - // AutoNATMaxPeerAddresses defines maximum number of addreses the autonat - // service will consider when attempting to connect to the peer. - AutoNATMaxPeerAddresses = 16 -) - // AutoNATService provides NAT autodetection services to other peers -type AutoNATService struct { - ctx context.Context - h host.Host - dialer host.Host +type autoNATService struct { + ctx context.Context + + config *config // rate limiter - mx sync.Mutex - reqs map[peer.ID]int - globalReqMax int - globalReqs int + mx sync.Mutex + reqs map[peer.ID]int + globalReqs int } // NewAutoNATService creates a new AutoNATService instance attached to a host -func NewAutoNATService(ctx context.Context, h host.Host, forceEnabled bool, opts ...libp2p.Option) (*AutoNATService, error) { - opts = append(opts, libp2p.NoListenAddrs) - dialer, err := libp2p.New(ctx, opts...) - if err != nil { - return nil, err +func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) { + if c.dialer == nil { + return nil, errors.New("Cannot create NAT service without a network") } - as := &AutoNATService{ - ctx: ctx, - h: h, - dialer: dialer, - globalReqMax: AutoNATGlobalThrottle, - reqs: make(map[peer.ID]int), + as := &autoNATService{ + ctx: ctx, + config: c, + reqs: make(map[peer.ID]int), } - if forceEnabled { - as.globalReqMax = 0 - h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) - go as.resetRateLimiter() - } else { - go as.enableWhenPublic() + if c.forceServer { + go as.Enable(ctx) } return as, nil } -func (as *AutoNATService) handleStream(s network.Stream) { +func (as *autoNATService) handleStream(s network.Stream) { defer helpers.FullClose(s) pid := s.Conn().RemotePeer() @@ -124,7 +91,7 @@ func (as *AutoNATService) handleStream(s network.Stream) { } } -func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { +func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Message_PeerInfo) *pb.Message_DialResponse { if mpi == nil { return newDialResponseError(pb.Message_E_BAD_REQUEST, "missing peer info") } @@ -141,7 +108,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me } } - addrs := make([]ma.Multiaddr, 0, AutoNATMaxPeerAddresses) + addrs := make([]ma.Multiaddr, 0, as.config.maxPeerAddresses) seen := make(map[string]struct{}) // add observed addr to the list of addresses to dial @@ -176,7 +143,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me addrs = append(addrs, addr) seen[str] = struct{}{} - if len(addrs) >= AutoNATMaxPeerAddresses { + if len(addrs) >= as.config.maxPeerAddresses { break } } @@ -188,7 +155,7 @@ func (as *AutoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me return as.doDial(peer.AddrInfo{ID: p, Addrs: addrs}) } -func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { +func (as *autoNATService) skipDial(addr ma.Multiaddr) bool { // skip relay addresses _, err := addr.ValueForProtocol(P_CIRCUIT) if err == nil { @@ -201,7 +168,7 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { } // Skip dialing addresses we believe are the local node's - for _, localAddr := range as.h.Addrs() { + for _, localAddr := range as.config.host.Addrs() { if localAddr.Equal(addr) { return true } @@ -210,11 +177,12 @@ func (as *AutoNATService) skipDial(addr ma.Multiaddr) bool { return false } -func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { +func (as *autoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() count := as.reqs[pi.ID] - if count >= AutoNATServiceThrottle || (as.globalReqMax > 0 && as.globalReqs >= as.globalReqMax) { + if count >= as.config.throttlePeerMax || (as.config.throttleGlobalMax > 0 && + as.globalReqs >= as.config.throttleGlobalMax) { as.mx.Unlock() return newDialResponseError(pb.Message_E_DIAL_REFUSED, "too many dials") } @@ -222,13 +190,13 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { as.globalReqs++ as.mx.Unlock() - ctx, cancel := context.WithTimeout(as.ctx, AutoNATServiceDialTimeout) + ctx, cancel := context.WithTimeout(as.ctx, as.config.dialTimeout) defer cancel() - as.dialer.Peerstore().ClearAddrs(pi.ID) + as.config.dialer.Peerstore().ClearAddrs(pi.ID) - as.dialer.Peerstore().AddAddrs(pi.ID, pi.Addrs, peerstore.TempAddrTTL) - conn, err := as.dialer.Network().DialPeer(ctx, pi.ID) + as.config.dialer.Peerstore().AddAddrs(pi.ID, pi.Addrs, peerstore.TempAddrTTL) + conn, err := as.config.dialer.DialPeer(ctx, pi.ID) if err != nil { log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) // wait for the context to timeout to avoid leaking timing information @@ -238,40 +206,15 @@ func (as *AutoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { } ra := conn.RemoteMultiaddr() - as.dialer.Network().ClosePeer(pi.ID) + as.config.dialer.ClosePeer(pi.ID) return newDialResponseOK(ra) } -func (as *AutoNATService) enableWhenPublic() { - sub, _ := as.h.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) - defer sub.Close() - - running := false - - for { - select { - case ev, ok := <-sub.Out(): - if !ok { - return - } - state := ev.(event.EvtLocalReachabilityChanged).Reachability - if state == network.ReachabilityPublic { - as.h.SetStreamHandler(autonat.AutoNATProto, as.handleStream) - if !running { - go as.resetRateLimiter() - running = true - } - } else { - as.h.RemoveStreamHandler(autonat.AutoNATProto) - } - case <-as.ctx.Done(): - return - } - } -} +// Enable the autoNAT service temporarily until the associated context is canceled. +func (as *autoNATService) Enable(ctx context.Context) { + as.config.host.SetStreamHandler(AutoNATProto, as.handleStream) -func (as *AutoNATService) resetRateLimiter() { - timer := time.NewTimer(AutoNATServiceResetInterval) + timer := time.NewTimer(as.config.throttleResetPeriod) defer timer.Stop() for { @@ -281,9 +224,10 @@ func (as *AutoNATService) resetRateLimiter() { as.reqs = make(map[peer.ID]int) as.globalReqs = 0 as.mx.Unlock() - jitter := rand.Float32() * float32(AutoNATServiceResetJitter) - timer.Reset(AutoNATServiceResetInterval + time.Duration(int64(jitter))) - case <-as.ctx.Done(): + jitter := rand.Float32() * float32(as.config.throttleResetJitter) + timer.Reset(as.config.throttleResetPeriod + time.Duration(int64(jitter))) + case <-ctx.Done(): + as.config.host.RemoveStreamHandler(AutoNATProto) return } } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 5e845c737f..260ce64d87 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -6,46 +6,38 @@ import ( "testing" "time" - "github.com/libp2p/go-libp2p" + bhost "github.com/libp2p/go-libp2p-blankhost" "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" - "github.com/libp2p/go-libp2p-core/peer" + swarmt "github.com/libp2p/go-libp2p-swarm/testing" - autonat "github.com/libp2p/go-libp2p-autonat" + ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) -func makeAutoNATService(ctx context.Context, t *testing.T) (host.Host, *AutoNATService) { - h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) - if err != nil { - t.Fatal(err) - } - - as, err := NewAutoNATService(ctx, h, true) - if err != nil { - t.Fatal(err) - } - - return h, as +func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + c := config{host: h, dialer: dh.Network()} + _ = defaults(&c) + c.forceServer = true + return &c } -func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, autonat.AutoNATClient) { - h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) +func makeAutoNATService(ctx context.Context, t *testing.T, c *config) *autoNATService { + as, err := newAutoNATService(ctx, c) if err != nil { t.Fatal(err) } - cli := autonat.NewAutoNATClient(h, nil) - return h, cli + return as } -func connect(t *testing.T, a, b host.Host) { - pinfo := peer.AddrInfo{ID: a.ID(), Addrs: a.Addrs()} - err := b.Connect(context.Background(), pinfo) - if err != nil { - t.Fatal(err) - } +func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, Client) { + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + cli := NewAutoNATClient(h, nil) + return h, cli } // Note: these tests assume that the host has only private network addresses! @@ -53,23 +45,20 @@ func TestAutoNATServiceDialError(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save := AutoNATServiceDialTimeout - AutoNATServiceDialTimeout = 1 * time.Second - - hs, _ := makeAutoNATService(ctx, t) + c := makeAutoNATConfig(ctx, t) + c.dialTimeout = 1 * time.Second + _ = makeAutoNATService(ctx, t, c) hc, ac := makeAutoNATClient(ctx, t) - connect(t, hs, hc) + connect(t, c.host, hc) - _, err := ac.DialBack(ctx, hs.ID()) + _, err := ac.DialBack(ctx, c.host.ID()) if err == nil { t.Fatal("Dial back succeeded unexpectedly!") } - if !autonat.IsDialError(err) { + if !IsDialError(err) { t.Fatal(err) } - - AutoNATServiceDialTimeout = save } func TestAutoNATServiceDialSuccess(t *testing.T) { @@ -79,11 +68,13 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { save := manet.Private4 manet.Private4 = []*net.IPNet{} - hs, _ := makeAutoNATService(ctx, t) + c := makeAutoNATConfig(ctx, t) + _ = makeAutoNATService(ctx, t, c) + hc, ac := makeAutoNATClient(ctx, t) - connect(t, hs, hc) + connect(t, c.host, hc) - _, err := ac.DialBack(ctx, hs.ID()) + _, err := ac.DialBack(ctx, c.host.ID()) if err != nil { t.Fatalf("Dial back failed: %s", err.Error()) } @@ -95,68 +86,59 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save1 := AutoNATServiceDialTimeout - AutoNATServiceDialTimeout = 1 * time.Second - save2 := AutoNATServiceResetInterval - AutoNATServiceResetInterval = 1 * time.Second - save3 := AutoNATServiceThrottle - AutoNATServiceThrottle = 1 - save4 := manet.Private4 + save1 := manet.Private4 manet.Private4 = []*net.IPNet{} - save5 := AutoNATServiceResetJitter - AutoNATServiceResetJitter = 0 * time.Second - hs, _ := makeAutoNATService(ctx, t) + c := makeAutoNATConfig(ctx, t) + c.dialTimeout = 1 * time.Second + c.throttleResetPeriod = time.Second + c.throttleResetJitter = 0 + c.throttlePeerMax = 1 + _ = makeAutoNATService(ctx, t, c) + hc, ac := makeAutoNATClient(ctx, t) - connect(t, hs, hc) + connect(t, c.host, hc) - _, err := ac.DialBack(ctx, hs.ID()) + _, err := ac.DialBack(ctx, c.host.ID()) if err != nil { t.Fatal(err) } - _, err = ac.DialBack(ctx, hs.ID()) + _, err = ac.DialBack(ctx, c.host.ID()) if err == nil { t.Fatal("Dial back succeeded unexpectedly!") } - if !autonat.IsDialRefused(err) { + if !IsDialRefused(err) { t.Fatal(err) } time.Sleep(2 * time.Second) - _, err = ac.DialBack(ctx, hs.ID()) + _, err = ac.DialBack(ctx, c.host.ID()) if err != nil { t.Fatal(err) } - AutoNATServiceDialTimeout = save1 - AutoNATServiceResetInterval = save2 - AutoNATServiceThrottle = save3 - manet.Private4 = save4 - AutoNATServiceResetJitter = save5 + manet.Private4 = save1 } func TestAutoNATServiceGlobalLimiter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save1 := AutoNATServiceDialTimeout - AutoNATServiceDialTimeout = 1 * time.Second - save2 := AutoNATServiceResetInterval - AutoNATServiceResetInterval = 10 * time.Second - save3 := AutoNATServiceThrottle - AutoNATServiceThrottle = 1 - save4 := manet.Private4 + save1 := manet.Private4 manet.Private4 = []*net.IPNet{} - save5 := AutoNATServiceResetJitter - AutoNATServiceResetJitter = 0 * time.Second - save6 := AutoNATGlobalThrottle - AutoNATGlobalThrottle = 5 - hs, as := makeAutoNATService(ctx, t) - as.globalReqMax = 5 + c := makeAutoNATConfig(ctx, t) + c.dialTimeout = time.Second + c.throttleResetPeriod = 10 * time.Second + c.throttleResetJitter = 0 + c.throttlePeerMax = 1 + c.throttleGlobalMax = 5 + _ = makeAutoNATService(ctx, t, c) + + hs := c.host for i := 0; i < 5; i++ { hc, ac := makeAutoNATClient(ctx, t) @@ -175,27 +157,21 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { t.Fatal("Dial back succeeded unexpectedly!") } - if !autonat.IsDialRefused(err) { + if !IsDialRefused(err) { t.Fatal(err) } - AutoNATServiceDialTimeout = save1 - AutoNATServiceResetInterval = save2 - AutoNATServiceThrottle = save3 - manet.Private4 = save4 - AutoNATServiceResetJitter = save5 - AutoNATGlobalThrottle = save6 + manet.Private4 = save1 } func TestAutoNATServiceRateLimitJitter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) - save1 := AutoNATServiceResetInterval - AutoNATServiceResetInterval = 100 * time.Millisecond - save2 := AutoNATServiceResetJitter - AutoNATServiceResetJitter = 100 * time.Millisecond - - _, svc := makeAutoNATService(ctx, t) + c := makeAutoNATConfig(ctx, t) + c.throttleResetPeriod = 100 * time.Millisecond + c.throttleResetJitter = 100 * time.Millisecond + c.throttleGlobalMax = 1 + svc := makeAutoNATService(ctx, t, c) svc.mx.Lock() svc.globalReqs = 1 svc.mx.Unlock() @@ -208,9 +184,6 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { } cancel() - - AutoNATServiceResetInterval = save1 - AutoNATServiceResetJitter = save2 } func TestAutoNATServiceStartup(t *testing.T) { @@ -220,18 +193,13 @@ func TestAutoNATServiceStartup(t *testing.T) { save := manet.Private4 manet.Private4 = []*net.IPNet{} - h, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + an, err := New(ctx, h, EnableService(dh.Network(), false)) if err != nil { t.Fatal(err) } - _, err = NewAutoNATService(ctx, h, false) - if err != nil { - t.Fatal(err) - } - - eb, _ := h.EventBus().Emitter(new(event.EvtLocalReachabilityChanged)) - hc, ac := makeAutoNATClient(ctx, t) connect(t, h, hc) @@ -240,16 +208,19 @@ func TestAutoNATServiceStartup(t *testing.T) { t.Fatal("autonat should not be started / advertising.") } - eb.Emit(event.EvtLocalReachabilityChanged{Reachability: network.ReachabilityPublic}) + sub, _ := h.EventBus().Subscribe(new(event.EvtLocalReachabilityChanged)) + + anc := an.(*AmbientAutoNAT) + anc.recordObservation(autoNATResult{Reachability: network.ReachabilityPublic, address: ma.StringCast("/ip4/127.0.0.1/tcp/1234")}) + + <-sub.Out() + _, err = ac.DialBack(ctx, h.ID()) if err != nil { t.Fatalf("autonat should be active, was %v", err) } - - eb.Emit(event.EvtLocalReachabilityChanged{Reachability: network.ReachabilityPrivate}) - _, err = ac.DialBack(ctx, h.ID()) - if err == nil { - t.Fatal("autonat should not be started / advertising.") + if an.Status() != network.ReachabilityPublic { + t.Fatalf("autonat should report public, but didn't") } manet.Private4 = save diff --git a/p2p/host/autonat/test/autonat_test.go b/p2p/host/autonat/test/autonat_test.go new file mode 100644 index 0000000000..ad037f6b1f --- /dev/null +++ b/p2p/host/autonat/test/autonat_test.go @@ -0,0 +1,60 @@ +package autonat_test + +import ( + "context" + "testing" + "time" + + "github.com/libp2p/go-libp2p" + autonat "github.com/libp2p/go-libp2p-autonat" + "github.com/libp2p/go-libp2p-core/event" + "github.com/libp2p/go-libp2p-core/network" +) + +// This separate testing package helps to resolve a circular dependency potentially +// being created between libp2p and libp2p-autonat + +func TestAutonatRoundtrip(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + // 3 hosts are used: [client] and [service + dialback dialer] + client, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"), libp2p.EnableAutoNAT()) + if err != nil { + t.Fatal(err) + } + + service, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) + if err != nil { + t.Fatal(err) + } + dialback, err := libp2p.New(ctx, libp2p.NoListenAddrs) + if err != nil { + t.Fatal(err) + } + _, err = autonat.New(ctx, service, autonat.EnableService(dialback.Network(), true)) + if err != nil { + t.Fatal(err) + } + + client.Peerstore().AddAddrs(service.ID(), service.Addrs(), time.Hour) + err = client.Connect(ctx, service.Peerstore().PeerInfo(service.ID())) + if err != nil { + t.Fatal(err) + } + + cSub, err := client.EventBus().Subscribe(new(event.EvtLocalReachabilityChanged)) + if err != nil { + t.Fatal(err) + } + defer cSub.Close() + + select { + case stat := <-cSub.Out(): + if stat == network.ReachabilityUnknown { + t.Fatalf("After status update, client did not know its status") + } + case <-time.After(30 * time.Second): + t.Fatal("sub timed out.") + } +} diff --git a/p2p/host/autonat/test/go.mod b/p2p/host/autonat/test/go.mod new file mode 100644 index 0000000000..17ba0a0142 --- /dev/null +++ b/p2p/host/autonat/test/go.mod @@ -0,0 +1,23 @@ +module github.com/libp2p/go-libp2p-autonat/test + +replace github.com/libp2p/go-libp2p-autonat => ../ + +require ( + github.com/libp2p/go-conn-security v0.1.0 // indirect + github.com/libp2p/go-libp2p v0.6.1-0.20200317201052-dd87382dd436 + github.com/libp2p/go-libp2p-autonat v0.1.2-0.20200317183318-4b2cc5830d44 + github.com/libp2p/go-libp2p-core v0.5.0 + github.com/libp2p/go-libp2p-host v0.1.0 // indirect + github.com/libp2p/go-libp2p-interface-connmgr v0.1.0 // indirect + github.com/libp2p/go-libp2p-interface-pnet v0.1.0 // indirect + github.com/libp2p/go-libp2p-metrics v0.1.0 // indirect + github.com/libp2p/go-libp2p-net v0.1.0 // indirect + github.com/libp2p/go-libp2p-protocol v0.1.0 // indirect + github.com/libp2p/go-libp2p-transport v0.1.0 // indirect + github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible // indirect + github.com/whyrusleeping/go-smux-multistream v2.0.2+incompatible // indirect + github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible // indirect + github.com/whyrusleeping/yamux v1.2.0 // indirect +) + +go 1.13 diff --git a/p2p/host/autonat/test/go.sum b/p2p/host/autonat/test/go.sum new file mode 100644 index 0000000000..ad52e804ee --- /dev/null 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h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= From 5c496af242bf32a9bec8d9c47cae7e72ea5de466 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 18 Mar 2020 13:17:04 -0700 Subject: [PATCH 094/132] Add option to force nat into a specified reachability state --- p2p/host/autonat/autonat.go | 60 +++++++++++++++++++++++++------- p2p/host/autonat/autonat_test.go | 17 +++++++++ p2p/host/autonat/options.go | 20 ++++++++--- p2p/host/autonat/svc.go | 12 ++++++- p2p/host/autonat/svc_test.go | 4 +-- 5 files changed, 92 insertions(+), 21 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 6156d0cbc5..f0bde8d407 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -47,6 +47,13 @@ type AmbientAutoNAT struct { emitReachabilityChanged event.Emitter } +type StaticAutoNAT struct { + ctx context.Context + host host.Host + reachability network.Reachability + service *autoNATService +} + type autoNATResult struct { network.Reachability address ma.Multiaddr @@ -54,10 +61,11 @@ type autoNATResult struct { // New creates a new NAT autodiscovery system attached to a host func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { + var err error conf := new(config) conf.host = h - if err := defaults(conf); err != nil { + if err = defaults(conf); err != nil { return nil, err } if conf.addressFunc == nil { @@ -65,13 +73,31 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { } for _, o := range options { - if err := o(conf); err != nil { + if err = o(conf); err != nil { return nil, err } } + emitReachabilityChanged, _ := h.EventBus().Emitter(new(event.EvtLocalReachabilityChanged), eventbus.Stateful) + + var service *autoNATService + if (!conf.forceReachability || conf.reachability == network.ReachabilityPublic) && conf.dialer != nil { + service, err = newAutoNATService(ctx, conf) + if err != nil { + return nil, err + } + } + + if conf.forceReachability { + emitReachabilityChanged.Emit(event.EvtLocalReachabilityChanged{Reachability: conf.reachability}) + return &StaticAutoNAT{ + ctx: ctx, + host: h, + reachability: conf.reachability, + service: service, + }, nil + } subAddrUpdated, _ := h.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) - emitReachabilityChanged, _ := h.EventBus().Emitter(new(event.EvtLocalReachabilityChanged), eventbus.Stateful) as := &AmbientAutoNAT{ ctx: ctx, @@ -83,20 +109,13 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { subAddrUpdated: subAddrUpdated, emitReachabilityChanged: emitReachabilityChanged, + service: service, } as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) h.Network().Notify(as) go as.background() - if conf.dialer != nil { - var err error - as.service, err = newAutoNATService(ctx, conf) - if err != nil { - return nil, err - } - } - return as, nil } @@ -115,7 +134,7 @@ func (as *AmbientAutoNAT) emitStatus() { func (as *AmbientAutoNAT) PublicAddr() (ma.Multiaddr, error) { s := as.status.Load().(autoNATResult) if s.Reachability != network.ReachabilityPublic { - return nil, errors.New("NAT Status is not public") + return nil, errors.New("NAT status is not public") } return s.address, nil @@ -225,7 +244,7 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { if currentStatus.Reachability != network.ReachabilityPublic { // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 - if as.service != nil && !as.config.forceServer { + if as.service != nil { ctx, cancel := context.WithCancel(as.ctx) go as.service.Enable(ctx) as.serviceCancel = cancel @@ -337,3 +356,18 @@ func shufflePeers(peers []peer.AddrInfo) { peers[i], peers[j] = peers[j], peers[i] } } + +func (s *StaticAutoNAT) Status() network.Reachability { + return s.reachability +} + +func (s *StaticAutoNAT) PublicAddr() (ma.Multiaddr, error) { + if s.reachability != network.ReachabilityPublic { + return nil, errors.New("NAT status is not public") + } + addrs := s.host.Addrs() + if len(addrs) > 0 { + return s.host.Addrs()[0], nil + } + return nil, errors.New("No available address") +} diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index c6bca8dd34..abeb810151 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -232,3 +232,20 @@ func TestAutoNATObservationRecording(t *testing.T) { } } + +func TestStaticNat(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + s, _ := h.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) + + nat, err := New(ctx, h, WithReachability(network.ReachabilityPrivate)) + if err != nil { + t.Fatal(err) + } + if nat.Status() != network.ReachabilityPrivate { + t.Fatalf("should be private") + } + expectEvent(t, s, network.ReachabilityPrivate) +} diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go index 5ed6ee7578..6f7d729466 100644 --- a/p2p/host/autonat/options.go +++ b/p2p/host/autonat/options.go @@ -12,9 +12,10 @@ import ( type config struct { host host.Host - addressFunc AddrFunc - dialer network.Network - forceServer bool + addressFunc AddrFunc + dialer network.Network + forceReachability bool + reachability network.Reachability // client bootDelay time.Duration @@ -52,13 +53,22 @@ var defaults = func(c *config) error { // make parallel connections, and as such will modify both the associated peerstore // and terminate connections of this dialer. The dialer provided // should be compatible (TCP/UDP) however with the transports of the libp2p network. -func EnableService(dialer network.Network, forceServer bool) Option { +func EnableService(dialer network.Network) Option { return func(c *config) error { if dialer == c.host.Network() || dialer.Peerstore() == c.host.Peerstore() { return errors.New("dialer should not be that of the host") } c.dialer = dialer - c.forceServer = forceServer + return nil + } +} + +// WithReachability overrides autonat to simply report an over-ridden reachability +// status. +func WithReachability(reachability network.Reachability) Option { + return func(c *config) error { + c.forceReachability = true + c.reachability = reachability return nil } } diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index d55beacc37..41afafd56d 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -6,6 +6,7 @@ import ( "math/rand" "net" "sync" + "sync/atomic" "time" "github.com/libp2p/go-libp2p-core/helpers" @@ -29,6 +30,7 @@ type autoNATService struct { config *config // rate limiter + running uint32 mx sync.Mutex reqs map[peer.ID]int globalReqs int @@ -46,7 +48,7 @@ func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) reqs: make(map[peer.ID]int), } - if c.forceServer { + if c.forceReachability { go as.Enable(ctx) } @@ -212,6 +214,14 @@ func (as *autoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { // Enable the autoNAT service temporarily until the associated context is canceled. func (as *autoNATService) Enable(ctx context.Context) { + alreadyRunning := atomic.SwapUint32(&as.running, 1) + if alreadyRunning > 0 { + return + } + defer func() { + atomic.StoreUint32(&as.running, 0) + }() + as.config.host.SetStreamHandler(AutoNATProto, as.handleStream) timer := time.NewTimer(as.config.throttleResetPeriod) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 260ce64d87..f38d4041a6 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -21,7 +21,7 @@ func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) c := config{host: h, dialer: dh.Network()} _ = defaults(&c) - c.forceServer = true + c.forceReachability = true return &c } @@ -195,7 +195,7 @@ func TestAutoNATServiceStartup(t *testing.T) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) - an, err := New(ctx, h, EnableService(dh.Network(), false)) + an, err := New(ctx, h, EnableService(dh.Network())) if err != nil { t.Fatal(err) } From 3ec0ac08503ce0efc6cdb0cae8613c9abd40f71a Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 19 Mar 2020 10:52:39 -0700 Subject: [PATCH 095/132] simplify service enable/disable interface --- p2p/host/autonat/autonat.go | 15 +++++---------- p2p/host/autonat/svc.go | 35 +++++++++++++++++++++++++---------- 2 files changed, 30 insertions(+), 20 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index f0bde8d407..6b03170db3 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -42,7 +42,6 @@ type AmbientAutoNAT struct { subAddrUpdated event.Subscription service *autoNATService - serviceCancel context.CancelFunc emitReachabilityChanged event.Emitter } @@ -245,9 +244,7 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 if as.service != nil { - ctx, cancel := context.WithCancel(as.ctx) - go as.service.Enable(ctx) - as.serviceCancel = cancel + as.service.Enable() } changed = true } else if as.confidence < 3 { @@ -274,9 +271,8 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { // we are flipping our NATStatus, so confidence drops to 0 as.confidence = 0 as.status.Store(observation) - if as.serviceCancel != nil { - as.serviceCancel() - as.serviceCancel = nil + if as.service != nil { + as.service.Disable() } as.emitStatus() } @@ -294,9 +290,8 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { log.Debugf("NAT status is unknown") as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) if currentStatus.Reachability != network.ReachabilityUnknown { - if as.serviceCancel != nil { - as.serviceCancel() - as.serviceCancel = nil + if as.service != nil { + as.service.Disable() } as.emitStatus() } diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 41afafd56d..8d88252ee2 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -6,7 +6,6 @@ import ( "math/rand" "net" "sync" - "sync/atomic" "time" "github.com/libp2p/go-libp2p-core/helpers" @@ -25,7 +24,9 @@ const P_CIRCUIT = 290 // AutoNATService provides NAT autodetection services to other peers type autoNATService struct { - ctx context.Context + ctx context.Context + instance context.CancelFunc + instanceLock sync.Mutex config *config @@ -49,7 +50,7 @@ func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) } if c.forceReachability { - go as.Enable(ctx) + as.Enable() } return as, nil @@ -212,16 +213,30 @@ func (as *autoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { return newDialResponseOK(ra) } -// Enable the autoNAT service temporarily until the associated context is canceled. -func (as *autoNATService) Enable(ctx context.Context) { - alreadyRunning := atomic.SwapUint32(&as.running, 1) - if alreadyRunning > 0 { +// Enable the autoNAT service if it is not running. +func (as *autoNATService) Enable() { + as.instanceLock.Lock() + defer as.instanceLock.Unlock() + if as.instance != nil { return } - defer func() { - atomic.StoreUint32(&as.running, 0) - }() + inst, cncl := context.WithCancel(as.ctx) + as.instance = cncl + go as.background(inst) +} + +// Disable the autoNAT service if it is running. +func (as *autoNATService) Disable() { + as.instanceLock.Lock() + defer as.instanceLock.Unlock() + if as.instance != nil { + as.instance() + as.instance = nil + } +} + +func (as *autoNATService) background(ctx context.Context) { as.config.host.SetStreamHandler(AutoNATProto, as.handleStream) timer := time.NewTimer(as.config.throttleResetPeriod) From 42a3e6f451584ca8bae7268473e5290f4aebf4aa Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 19 Mar 2020 10:56:55 -0700 Subject: [PATCH 096/132] switch enablement to not happen in svc constructor --- p2p/host/autonat/autonat.go | 5 +++++ p2p/host/autonat/svc.go | 4 ---- p2p/host/autonat/svc_test.go | 1 + 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 6b03170db3..f0c98d0645 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -88,6 +88,11 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { if conf.forceReachability { emitReachabilityChanged.Emit(event.EvtLocalReachabilityChanged{Reachability: conf.reachability}) + + // The serice will only exist when reachability is public. + if service != nil { + service.Enable() + } return &StaticAutoNAT{ ctx: ctx, host: h, diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 8d88252ee2..ed8fadcdce 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -49,10 +49,6 @@ func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) reqs: make(map[peer.ID]int), } - if c.forceReachability { - as.Enable() - } - return as, nil } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index f38d4041a6..749c7b9343 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -30,6 +30,7 @@ func makeAutoNATService(ctx context.Context, t *testing.T, c *config) *autoNATSe if err != nil { t.Fatal(err) } + as.Enable() return as } From 09d3ae44501c5ecfc8d4e21f52b0d2042aac6990 Mon Sep 17 00:00:00 2001 From: Will Date: Mon, 23 Mar 2020 16:49:48 -0700 Subject: [PATCH 097/132] skip dial attempts to non-public peers (#59) skip dial attempts to non-public peers fix https://github.com/libp2p/go-libp2p-autonat-svc/issues/33 fix #59 --- p2p/host/autonat/autonat.go | 55 ++++++++++++++++++++++++++++++++ p2p/host/autonat/autonat_test.go | 1 + p2p/host/autonat/options.go | 2 ++ p2p/host/autonat/svc.go | 28 ++-------------- p2p/host/autonat/svc_test.go | 25 ++------------- 5 files changed, 63 insertions(+), 48 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index f0c98d0645..331b9c67c9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -154,6 +154,44 @@ func ipInList(candidate ma.Multiaddr, list []ma.Multiaddr) bool { return false } +// skipDial indicates that a multiaddress isn't worth attempted dialing. +// The same logic is used when the autonat client is considering if +// a remote peer is worth using as a server, and when the server is +// considering if a requested client is worth dialing back. +func (c *config) skipDial(addr ma.Multiaddr) bool { + // skip relay addresses + _, err := addr.ValueForProtocol(ma.P_CIRCUIT) + if err == nil { + return true + } + + if c.allowSelfDials { + return false + } + + // skip private network (unroutable) addresses + if !manet.IsPublicAddr(addr) { + return true + } + candidateIP, err := manet.ToIP(addr) + if err != nil { + return true + } + + // Skip dialing addresses we believe are the local node's + for _, localAddr := range c.host.Addrs() { + localIP, err := manet.ToIP(localAddr) + if err != nil { + continue + } + if localIP.Equal(candidateIP) { + return true + } + } + + return false +} + func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection @@ -336,6 +374,23 @@ func (as *AmbientAutoNAT) probeNextPeer() { if proto, err := as.host.Peerstore().SupportsProtocols(p, AutoNATProto); len(proto) == 0 || err != nil { continue } + + goodAddr := false + for _, a := range info.Addrs { + if !as.config.skipDial(a) { + goodAddr = true + // if a public IP of the peer is one of ours: skip the peer. + aIP, _ := manet.ToIP(a) + aHost, _ := manet.FromIP(aIP) + if len(manet.AddrMatch(aHost, as.host.Addrs())) > 0 { + goodAddr = false + break + } + } + } + if !goodAddr { + continue + } addrs = append(addrs, info) } // TODO: track and exclude recently probed peers. diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index abeb810151..5e82fa5bed 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -55,6 +55,7 @@ func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, A h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) a, _ := New(ctx, h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) + a.(*AmbientAutoNAT).config.allowSelfDials = true return h, a } diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go index 6f7d729466..f7f664c9cb 100644 --- a/p2p/host/autonat/options.go +++ b/p2p/host/autonat/options.go @@ -16,6 +16,8 @@ type config struct { dialer network.Network forceReachability bool reachability network.Reachability + // Don't try to skip dials that might be within the lan + allowSelfDials bool // client bootDelay time.Duration diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index ed8fadcdce..ca1e391d38 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -20,8 +20,6 @@ import ( manet "github.com/multiformats/go-multiaddr-net" ) -const P_CIRCUIT = 290 - // AutoNATService provides NAT autodetection services to other peers type autoNATService struct { ctx context.Context @@ -112,7 +110,7 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me // add observed addr to the list of addresses to dial var obsHost net.IP - if !as.skipDial(obsaddr) { + if !as.config.skipDial(obsaddr) { addrs = append(addrs, obsaddr) seen[obsaddr.String()] = struct{}{} obsHost, _ = manet.ToIP(obsaddr) @@ -125,7 +123,7 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if as.skipDial(addr) { + if as.config.skipDial(addr) { continue } @@ -154,28 +152,6 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me return as.doDial(peer.AddrInfo{ID: p, Addrs: addrs}) } -func (as *autoNATService) skipDial(addr ma.Multiaddr) bool { - // skip relay addresses - _, err := addr.ValueForProtocol(P_CIRCUIT) - if err == nil { - return true - } - - // skip private network (unroutable) addresses - if !manet.IsPublicAddr(addr) { - return true - } - - // Skip dialing addresses we believe are the local node's - for _, localAddr := range as.config.host.Addrs() { - if localAddr.Equal(addr) { - return true - } - } - - return false -} - func (as *autoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { // rate limit check as.mx.Lock() diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 749c7b9343..ed326bbc3d 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -2,7 +2,6 @@ package autonat import ( "context" - "net" "testing" "time" @@ -13,7 +12,6 @@ import ( swarmt "github.com/libp2p/go-libp2p-swarm/testing" ma "github.com/multiformats/go-multiaddr" - manet "github.com/multiformats/go-multiaddr-net" ) func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { @@ -22,6 +20,7 @@ func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { c := config{host: h, dialer: dh.Network()} _ = defaults(&c) c.forceReachability = true + c.allowSelfDials = true return &c } @@ -48,6 +47,7 @@ func TestAutoNATServiceDialError(t *testing.T) { c := makeAutoNATConfig(ctx, t) c.dialTimeout = 1 * time.Second + c.allowSelfDials = false _ = makeAutoNATService(ctx, t, c) hc, ac := makeAutoNATClient(ctx, t) connect(t, c.host, hc) @@ -66,9 +66,6 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save := manet.Private4 - manet.Private4 = []*net.IPNet{} - c := makeAutoNATConfig(ctx, t) _ = makeAutoNATService(ctx, t, c) @@ -79,17 +76,12 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { if err != nil { t.Fatalf("Dial back failed: %s", err.Error()) } - - manet.Private4 = save } func TestAutoNATServiceDialRateLimiter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save1 := manet.Private4 - manet.Private4 = []*net.IPNet{} - c := makeAutoNATConfig(ctx, t) c.dialTimeout = 1 * time.Second c.throttleResetPeriod = time.Second @@ -120,17 +112,12 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { if err != nil { t.Fatal(err) } - - manet.Private4 = save1 } func TestAutoNATServiceGlobalLimiter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save1 := manet.Private4 - manet.Private4 = []*net.IPNet{} - c := makeAutoNATConfig(ctx, t) c.dialTimeout = time.Second c.throttleResetPeriod = 10 * time.Second @@ -161,8 +148,6 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { if !IsDialRefused(err) { t.Fatal(err) } - - manet.Private4 = save1 } func TestAutoNATServiceRateLimitJitter(t *testing.T) { @@ -191,12 +176,10 @@ func TestAutoNATServiceStartup(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - save := manet.Private4 - manet.Private4 = []*net.IPNet{} - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) an, err := New(ctx, h, EnableService(dh.Network())) + an.(*AmbientAutoNAT).config.allowSelfDials = true if err != nil { t.Fatal(err) } @@ -223,6 +206,4 @@ func TestAutoNATServiceStartup(t *testing.T) { if an.Status() != network.ReachabilityPublic { t.Fatalf("autonat should report public, but didn't") } - - manet.Private4 = save } From 0d304cb76928aa483cc8f9d604d32205ff102fdd Mon Sep 17 00:00:00 2001 From: Will Date: Wed, 25 Mar 2020 11:11:55 -0700 Subject: [PATCH 098/132] factor out dial policy (#62) factor out dial policy --- p2p/host/autonat/autonat.go | 56 +----------- p2p/host/autonat/autonat_test.go | 2 +- p2p/host/autonat/dialpolicy.go | 95 +++++++++++++++++++ p2p/host/autonat/dialpolicy_test.go | 137 ++++++++++++++++++++++++++++ p2p/host/autonat/options.go | 3 +- p2p/host/autonat/svc.go | 4 +- p2p/host/autonat/svc_test.go | 6 +- 7 files changed, 242 insertions(+), 61 deletions(-) create mode 100644 p2p/host/autonat/dialpolicy.go create mode 100644 p2p/host/autonat/dialpolicy_test.go diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 331b9c67c9..04ec7a1a46 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -63,6 +63,7 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { var err error conf := new(config) conf.host = h + conf.dialPolicy.host = h if err = defaults(conf); err != nil { return nil, err @@ -154,44 +155,6 @@ func ipInList(candidate ma.Multiaddr, list []ma.Multiaddr) bool { return false } -// skipDial indicates that a multiaddress isn't worth attempted dialing. -// The same logic is used when the autonat client is considering if -// a remote peer is worth using as a server, and when the server is -// considering if a requested client is worth dialing back. -func (c *config) skipDial(addr ma.Multiaddr) bool { - // skip relay addresses - _, err := addr.ValueForProtocol(ma.P_CIRCUIT) - if err == nil { - return true - } - - if c.allowSelfDials { - return false - } - - // skip private network (unroutable) addresses - if !manet.IsPublicAddr(addr) { - return true - } - candidateIP, err := manet.ToIP(addr) - if err != nil { - return true - } - - // Skip dialing addresses we believe are the local node's - for _, localAddr := range c.host.Addrs() { - localIP, err := manet.ToIP(localAddr) - if err != nil { - continue - } - if localIP.Equal(candidateIP) { - return true - } - } - - return false -} - func (as *AmbientAutoNAT) background() { // wait a bit for the node to come online and establish some connections // before starting autodetection @@ -375,21 +338,8 @@ func (as *AmbientAutoNAT) probeNextPeer() { continue } - goodAddr := false - for _, a := range info.Addrs { - if !as.config.skipDial(a) { - goodAddr = true - // if a public IP of the peer is one of ours: skip the peer. - aIP, _ := manet.ToIP(a) - aHost, _ := manet.FromIP(aIP) - if len(manet.AddrMatch(aHost, as.host.Addrs())) > 0 { - goodAddr = false - break - } - } - } - if !goodAddr { - continue + if !as.config.dialPolicy.skipPeer(info.Addrs) { + addrs = append(addrs, info) } addrs = append(addrs, info) } diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 5e82fa5bed..7e45862a2d 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -55,7 +55,7 @@ func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, A h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) a, _ := New(ctx, h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) - a.(*AmbientAutoNAT).config.allowSelfDials = true + a.(*AmbientAutoNAT).config.dialPolicy.allowSelfDials = true return h, a } diff --git a/p2p/host/autonat/dialpolicy.go b/p2p/host/autonat/dialpolicy.go new file mode 100644 index 0000000000..4c35680f34 --- /dev/null +++ b/p2p/host/autonat/dialpolicy.go @@ -0,0 +1,95 @@ +package autonat + +import ( + "net" + + "github.com/libp2p/go-libp2p-core/host" + ma "github.com/multiformats/go-multiaddr" + manet "github.com/multiformats/go-multiaddr-net" +) + +type dialPolicy struct { + allowSelfDials bool + host host.Host +} + +// skipDial indicates that a multiaddress isn't worth attempted dialing. +// The same logic is used when the autonat client is considering if +// a remote peer is worth using as a server, and when the server is +// considering if a requested client is worth dialing back. +func (d *dialPolicy) skipDial(addr ma.Multiaddr) bool { + // skip relay addresses + _, err := addr.ValueForProtocol(ma.P_CIRCUIT) + if err == nil { + return true + } + + if d.allowSelfDials { + return false + } + + // skip private network (unroutable) addresses + if !manet.IsPublicAddr(addr) { + return true + } + candidateIP, err := manet.ToIP(addr) + if err != nil { + return true + } + + // Skip dialing addresses we believe are the local node's + for _, localAddr := range d.host.Addrs() { + localIP, err := manet.ToIP(localAddr) + if err != nil { + continue + } + if localIP.Equal(candidateIP) { + return true + } + } + + return false +} + +// skipPeer indicates that the collection of multiaddresses representing a peer +// isn't worth attempted dialing. Addresses are dialed individually, and while +// individual addresses for a peer may be worth considering, there are some +// factors, like the presence of the same public address as the local host, +// that may make the peer undesirable to dial as a whole. +func (d *dialPolicy) skipPeer(addrs []ma.Multiaddr) bool { + localAddrs := d.host.Addrs() + localHosts := make([]net.IP, 0) + for _, lAddr := range localAddrs { + if _, err := lAddr.ValueForProtocol(ma.P_CIRCUIT); err != nil && manet.IsPublicAddr(lAddr) { + lIP, err := manet.ToIP(lAddr) + if err != nil { + continue + } + localHosts = append(localHosts, lIP) + } + } + + // if a public IP of the peer is one of ours: skip the peer. + goodPublic := false + for _, addr := range addrs { + if _, err := addr.ValueForProtocol(ma.P_CIRCUIT); err != nil && manet.IsPublicAddr(addr) { + aIP, err := manet.ToIP(addr) + if err != nil { + continue + } + + for _, lIP := range localHosts { + if lIP.Equal(aIP) { + return true + } + } + goodPublic = true + } + } + + if d.allowSelfDials { + return false + } + + return !goodPublic +} diff --git a/p2p/host/autonat/dialpolicy_test.go b/p2p/host/autonat/dialpolicy_test.go new file mode 100644 index 0000000000..d18385caf7 --- /dev/null +++ b/p2p/host/autonat/dialpolicy_test.go @@ -0,0 +1,137 @@ +package autonat + +import ( + "context" + "errors" + "net" + "testing" + + blankhost "github.com/libp2p/go-libp2p-blankhost" + "github.com/libp2p/go-libp2p-core/peer" + "github.com/libp2p/go-libp2p-core/transport" + swarmt "github.com/libp2p/go-libp2p-swarm/testing" + "github.com/multiformats/go-multiaddr" +) + +func makeMA(a string) multiaddr.Multiaddr { + addr, err := multiaddr.NewMultiaddr(a) + if err != nil { + panic(err) + } + return addr +} + +type mockT struct { + ctx context.Context + addr multiaddr.Multiaddr +} + +func (m *mockT) Dial(ctx context.Context, a multiaddr.Multiaddr, p peer.ID) (transport.CapableConn, error) { + return nil, nil +} +func (m *mockT) CanDial(_ multiaddr.Multiaddr) bool { return true } +func (m *mockT) Listen(a multiaddr.Multiaddr) (transport.Listener, error) { + return &mockL{m.ctx, m.addr}, nil +} +func (m *mockT) Protocols() []int { return []int{multiaddr.P_IP4} } +func (m *mockT) Proxy() bool { return false } +func (m *mockT) String() string { return "mock-tcp-ipv4" } + +type mockL struct { + ctx context.Context + addr multiaddr.Multiaddr +} + +func (l *mockL) Accept() (transport.CapableConn, error) { + select { + case <-l.ctx.Done(): + } + return nil, errors.New("expected in mocked test") +} +func (l *mockL) Close() error { return nil } +func (l *mockL) Addr() net.Addr { return nil } +func (l *mockL) Multiaddr() multiaddr.Multiaddr { return l.addr } + +func TestSkipDial(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + s := swarmt.GenSwarm(t, ctx) + d := dialPolicy{host: blankhost.NewBlankHost(s)} + if d.skipDial(makeMA("/ip4/8.8.8.8")) != false { + t.Fatal("failed dialing a valid public addr") + } + + if d.skipDial(makeMA("/ip6/2607:f8b0:400a::1")) != false { + t.Fatal("failed dialing a valid public addr") + } + + if d.skipDial(makeMA("/ip4/192.168.0.1")) != true { + t.Fatal("didn't skip dialing an internal addr") + } + + s.AddTransport(&mockT{ctx, makeMA("/ip4/8.8.8.8")}) + err := s.AddListenAddr(makeMA("/ip4/8.8.8.8")) + if err != nil { + t.Fatal(err) + } + if d.skipDial(makeMA("/ip4/8.8.8.8")) != true { + t.Fatal("failed dialing a valid host address") + } +} + +func TestSkipPeer(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + s := swarmt.GenSwarm(t, ctx) + d := dialPolicy{host: blankhost.NewBlankHost(s)} + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8")}) != false { + t.Fatal("failed dialing a valid public addr") + } + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/192.168.0.1")}) != false { + t.Fatal("failed dialing a valid public addr") + } + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/192.168.0.1")}) != true { + t.Fatal("succeeded with no public addr") + } + + s.AddTransport(&mockT{ctx, makeMA("/ip4/8.8.8.8")}) + err := s.AddListenAddr(makeMA("/ip4/8.8.8.8")) + if err != nil { + t.Fatal(err) + } + + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/192.168.0.1")}) != true { + t.Fatal("succeeded dialing host address") + } + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/9.9.9.9")}) != true { + t.Fatal("succeeded dialing host address when other public") + } + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/9.9.9.9")}) != false { + t.Fatal("succeeded dialing host address when other public") + } +} + +func TestSkipLocalPeer(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + s := swarmt.GenSwarm(t, ctx) + d := dialPolicy{host: blankhost.NewBlankHost(s)} + s.AddTransport(&mockT{ctx, makeMA("/ip4/192.168.0.1")}) + err := s.AddListenAddr(makeMA("/ip4/192.168.0.1")) + if err != nil { + t.Fatal(err) + } + + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8")}) != false { + t.Fatal("failed dialing a valid public addr") + } + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8"), makeMA("/ip4/192.168.0.1")}) != false { + t.Fatal("failed dialing a valid public addr") + } + if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/192.168.0.1")}) != true { + t.Fatal("succeeded with no public addr") + } +} diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go index f7f664c9cb..d7c77f9e96 100644 --- a/p2p/host/autonat/options.go +++ b/p2p/host/autonat/options.go @@ -13,11 +13,10 @@ type config struct { host host.Host addressFunc AddrFunc + dialPolicy dialPolicy dialer network.Network forceReachability bool reachability network.Reachability - // Don't try to skip dials that might be within the lan - allowSelfDials bool // client bootDelay time.Duration diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index ca1e391d38..481de16d82 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -110,7 +110,7 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me // add observed addr to the list of addresses to dial var obsHost net.IP - if !as.config.skipDial(obsaddr) { + if !as.config.dialPolicy.skipDial(obsaddr) { addrs = append(addrs, obsaddr) seen[obsaddr.String()] = struct{}{} obsHost, _ = manet.ToIP(obsaddr) @@ -123,7 +123,7 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if as.config.skipDial(addr) { + if as.config.dialPolicy.skipDial(addr) { continue } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index ed326bbc3d..195a523438 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -20,7 +20,7 @@ func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { c := config{host: h, dialer: dh.Network()} _ = defaults(&c) c.forceReachability = true - c.allowSelfDials = true + c.dialPolicy.allowSelfDials = true return &c } @@ -47,7 +47,7 @@ func TestAutoNATServiceDialError(t *testing.T) { c := makeAutoNATConfig(ctx, t) c.dialTimeout = 1 * time.Second - c.allowSelfDials = false + c.dialPolicy.allowSelfDials = false _ = makeAutoNATService(ctx, t, c) hc, ac := makeAutoNATClient(ctx, t) connect(t, c.host, hc) @@ -179,7 +179,7 @@ func TestAutoNATServiceStartup(t *testing.T) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) an, err := New(ctx, h, EnableService(dh.Network())) - an.(*AmbientAutoNAT).config.allowSelfDials = true + an.(*AmbientAutoNAT).config.dialPolicy.allowSelfDials = true if err != nil { t.Fatal(err) } From 10fc36520602a3d5404dae91a909124e6e22ad01 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Tue, 7 Apr 2020 10:55:15 -0700 Subject: [PATCH 099/132] Run Autonat Service while in unknown connectivity mode This supports local LAN connectivity / discovery --- p2p/host/autonat/autonat.go | 10 +++++----- p2p/host/autonat/svc_test.go | 4 ++-- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 04ec7a1a46..aa355d3308 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -46,6 +46,7 @@ type AmbientAutoNAT struct { emitReachabilityChanged event.Emitter } +// StaticAutoNAT is a simple AutoNAT implementation when a single NAT status is desired. type StaticAutoNAT struct { ctx context.Context host host.Host @@ -85,15 +86,12 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { if err != nil { return nil, err } + service.Enable() } if conf.forceReachability { emitReachabilityChanged.Emit(event.EvtLocalReachabilityChanged{Reachability: conf.reachability}) - // The serice will only exist when reachability is public. - if service != nil { - service.Enable() - } return &StaticAutoNAT{ ctx: ctx, host: h, @@ -297,7 +295,7 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) if currentStatus.Reachability != network.ReachabilityUnknown { if as.service != nil { - as.service.Disable() + as.service.Enable() } as.emitStatus() } @@ -362,10 +360,12 @@ func shufflePeers(peers []peer.AddrInfo) { } } +// Status returns the AutoNAT observed reachability status. func (s *StaticAutoNAT) Status() network.Reachability { return s.reachability } +// PublicAddr returns the publicly connectable Multiaddr of this node if one is known. func (s *StaticAutoNAT) PublicAddr() (ma.Multiaddr, error) { if s.reachability != network.ReachabilityPublic { return nil, errors.New("NAT status is not public") diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 195a523438..e1df6c8a8c 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -188,8 +188,8 @@ func TestAutoNATServiceStartup(t *testing.T) { connect(t, h, hc) _, err = ac.DialBack(ctx, h.ID()) - if err == nil { - t.Fatal("autonat should not be started / advertising.") + if err != nil { + t.Fatal("autonat service be active in unknown mode.") } sub, _ := h.EventBus().Subscribe(new(event.EvtLocalReachabilityChanged)) From f6bfa824aa61c3a93b287b1c97f5173af2916554 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 25 Mar 2020 15:55:44 -0700 Subject: [PATCH 100/132] react to incoming events --- p2p/host/autonat/autonat.go | 85 ++++++++++++++++++++++---------- p2p/host/autonat/autonat_test.go | 24 +++++++++ p2p/host/autonat/client.go | 18 ++++--- p2p/host/autonat/notify.go | 13 ++++- p2p/host/autonat/proto.go | 1 + 5 files changed, 104 insertions(+), 37 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index aa355d3308..ebf713470b 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -40,8 +40,7 @@ type AmbientAutoNAT struct { lastInbound time.Time lastProbe time.Time - subAddrUpdated event.Subscription - service *autoNATService + service *autoNATService emitReachabilityChanged event.Emitter } @@ -100,8 +99,6 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { }, nil } - subAddrUpdated, _ := h.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) - as := &AmbientAutoNAT{ ctx: ctx, host: h, @@ -109,8 +106,6 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { inboundConn: make(chan network.Conn, 5), observations: make(chan autoNATResult, 1), - subAddrUpdated: subAddrUpdated, - emitReachabilityChanged: emitReachabilityChanged, service: service, } @@ -159,17 +154,24 @@ func (as *AmbientAutoNAT) background() { delay := as.config.bootDelay var lastAddrUpdated time.Time - addrUpdatedChan := as.subAddrUpdated.Out() - defer as.subAddrUpdated.Close() + subAddrUpdated, _ := as.host.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) + addrUpdatedChan := subAddrUpdated.Out() + defer subAddrUpdated.Close() + + subIDOccured, _ := as.host.EventBus().Subscribe(new(event.EvtPeerIdentificationCompleted)) + IDChan := subIDOccured.Out() + defer subIDOccured.Close() defer as.emitReachabilityChanged.Close() timer := time.NewTimer(delay) defer timer.Stop() timerRunning := true + var peer peer.ID for { + peer = "" select { - // new connection occured. + // new inbound connection. case conn := <-as.inboundConn: localAddrs := as.host.Addrs() ca := as.status.Load().(autoNATResult) @@ -188,6 +190,13 @@ func (as *AmbientAutoNAT) background() { } } + // peer identification occured. + case idev := <-IDChan: + peer = idev.(event.EvtPeerIdentificationCompleted).Peer + if s, err := as.host.Peerstore().SupportsProtocols(peer, AutoNATProto); len(s) == 0 || err != nil { + peer = "" + } + // probe finished. case result, ok := <-as.observations: if !ok { @@ -204,18 +213,21 @@ func (as *AmbientAutoNAT) background() { if timerRunning && !timer.Stop() { <-timer.C } - timer.Reset(as.scheduleProbe()) + timer.Reset(as.scheduleProbe(peer)) timerRunning = true } } // scheduleProbe calculates when the next probe should be scheduled for, -// and launches it if that time is now. -func (as *AmbientAutoNAT) scheduleProbe() time.Duration { +// and launches it if that time is now. peer is an an optional hint +// for prioritizing a specific peer in the probing queue. +func (as *AmbientAutoNAT) scheduleProbe(peer peer.ID) time.Duration { // Our baseline is a probe every 'AutoNATRefreshInterval' // This is modulated by: - // * recent inbound connections make us willing to wait up to 2x longer between probes. - // * low confidence makes us speed up between probes. + // * if we are in an unknown state, or have low confidence, that should drop to 'AutoNATRetryInterval' + // * recent inbound connections (implying continued connectivity) should decrease the retry when public + // * recent inbound connections when not public mean we should try more actively to see if we're public. + // * if we find out in connecting to a peer that it supports the autonat service, we should opportunistically consider probing early. fixedNow := time.Now() currentStatus := as.status.Load().(autoNATResult) @@ -228,11 +240,22 @@ func (as *AmbientAutoNAT) scheduleProbe() time.Duration { untilNext = as.config.retryInterval } else if currentStatus.Reachability == network.ReachabilityPublic && as.lastInbound.After(as.lastProbe) { untilNext *= 2 + } else if currentStatus.Reachability != network.ReachabilityPublic && as.lastInbound.After(as.lastProbe) { + untilNext /= 5 + } + if as.confidence < 3 && peer != "" { + untilNext /= 5 } + nextProbe = as.lastProbe.Add(untilNext) } if fixedNow.After(nextProbe) || fixedNow == nextProbe { - go as.probeNextPeer() + if err := peer.Validate(); err != nil { + peer = as.getPeerToProbe() + } + if peer.Validate() == nil && as.tryProbe(peer) { + as.lastProbe = fixedNow + } return as.config.retryInterval } return nextProbe.Sub(fixedNow) @@ -302,6 +325,17 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { } } +func (as *AmbientAutoNAT) tryProbe(p peer.ID) bool { + info := as.host.Peerstore().PeerInfo(p) + // TODO: reject if recently probed / on backoff + + if !as.config.dialPolicy.skipPeer(info.Addrs) { + go as.probe(&info) + return true + } + return false +} + func (as *AmbientAutoNAT) probe(pi *peer.AddrInfo) { cli := NewAutoNATClient(as.host, as.config.addressFunc) ctx, cancel := context.WithTimeout(as.ctx, as.config.requestTimeout) @@ -321,13 +355,13 @@ func (as *AmbientAutoNAT) probe(pi *peer.AddrInfo) { } } -func (as *AmbientAutoNAT) probeNextPeer() { +func (as *AmbientAutoNAT) getPeerToProbe() peer.ID { peers := as.host.Network().Peers() if len(peers) == 0 { - return + return "" } - addrs := make([]peer.AddrInfo, 0, len(peers)) + candidates := make([]peer.ID, 0, len(peers)) for _, p := range peers { info := as.host.Peerstore().PeerInfo(p) @@ -337,23 +371,20 @@ func (as *AmbientAutoNAT) probeNextPeer() { } if !as.config.dialPolicy.skipPeer(info.Addrs) { - addrs = append(addrs, info) + candidates = append(candidates, p) } - addrs = append(addrs, info) } // TODO: track and exclude recently probed peers. - if len(addrs) == 0 { - return + if len(candidates) == 0 { + return "" } - shufflePeers(addrs) - - as.lastProbe = time.Now() - as.probe(&addrs[0]) + shufflePeers(candidates) + return candidates[0] } -func shufflePeers(peers []peer.AddrInfo) { +func shufflePeers(peers []peer.ID) { for i := range peers { j := rand.Intn(i + 1) peers[i], peers[j] = peers[j], peers[i] diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 7e45862a2d..a9629b1bb2 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -176,6 +176,30 @@ func TestAutoNATPublictoPrivate(t *testing.T) { } } +func TestAutoNATIncomingEvents(t *testing.T) { + ctx, cancel := context.WithCancel(context.Background()) + defer cancel() + + hs := makeAutoNATServicePrivate(ctx, t) + hc, ani := makeAutoNAT(ctx, t, hs) + an := ani.(*AmbientAutoNAT) + + status := an.Status() + if status != network.ReachabilityUnknown { + t.Fatalf("unexpected NAT status: %d", status) + } + + connect(t, hs, hc) + + em, _ := hc.EventBus().Emitter(&event.EvtPeerIdentificationCompleted{}) + em.Emit(event.EvtPeerIdentificationCompleted{Peer: hs.ID()}) + + time.Sleep(10 * time.Millisecond) + if an.Status() == network.ReachabilityUnknown { + t.Fatalf("Expected probe due to identification of autonat service") + } +} + func TestAutoNATObservationRecording(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index b86f17a874..e2ab8a3df2 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -14,8 +14,8 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -// AutoNATError is the class of errors signalled by AutoNAT services -type AutoNATError struct { +// Error wraps errors signalled by AutoNAT services +type Error struct { Status pb.Message_ResponseStatus Text string } @@ -71,30 +71,32 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) return ma.NewMultiaddrBytes(addr) default: - return nil, AutoNATError{Status: status, Text: res.GetDialResponse().GetStatusText()} + return nil, Error{Status: status, Text: res.GetDialResponse().GetStatusText()} } } -func (e AutoNATError) Error() string { +func (e Error) Error() string { return fmt.Sprintf("AutoNAT error: %s (%s)", e.Text, e.Status.String()) } -func (e AutoNATError) IsDialError() bool { +// IsDialError returns true if the error was due to a dial back failure +func (e Error) IsDialError() bool { return e.Status == pb.Message_E_DIAL_ERROR } -func (e AutoNATError) IsDialRefused() bool { +// IsDialRefused returns true if the error was due to a refusal to dial back +func (e Error) IsDialRefused() bool { return e.Status == pb.Message_E_DIAL_REFUSED } // IsDialError returns true if the AutoNAT peer signalled an error dialing back func IsDialError(e error) bool { - ae, ok := e.(AutoNATError) + ae, ok := e.(Error) return ok && ae.IsDialError() } // IsDialRefused returns true if the AutoNAT peer signalled refusal to dial back func IsDialRefused(e error) bool { - ae, ok := e.(AutoNATError) + ae, ok := e.(Error) return ok && ae.IsDialRefused() } diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index a444df62db..44c80fd425 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -9,11 +9,19 @@ import ( var _ network.Notifiee = (*AmbientAutoNAT)(nil) -func (as *AmbientAutoNAT) Listen(net network.Network, a ma.Multiaddr) {} -func (as *AmbientAutoNAT) ListenClose(net network.Network, a ma.Multiaddr) {} +// Listen is part of the network.Notifiee interface +func (as *AmbientAutoNAT) Listen(net network.Network, a ma.Multiaddr) {} + +// ListenClose is part of the network.Notifiee interface +func (as *AmbientAutoNAT) ListenClose(net network.Network, a ma.Multiaddr) {} + +// OpenedStream is part of the network.Notifiee interface func (as *AmbientAutoNAT) OpenedStream(net network.Network, s network.Stream) {} + +// ClosedStream is part of the network.Notifiee interface func (as *AmbientAutoNAT) ClosedStream(net network.Network, s network.Stream) {} +// Connected is part of the network.Notifiee interface func (as *AmbientAutoNAT) Connected(net network.Network, c network.Conn) { if c.Stat().Direction == network.DirInbound && manet.IsPublicAddr(c.RemoteMultiaddr()) { @@ -24,4 +32,5 @@ func (as *AmbientAutoNAT) Connected(net network.Network, c network.Conn) { } } +// Disconnected is part of the network.Notifiee interface func (as *AmbientAutoNAT) Disconnected(net network.Network, c network.Conn) {} diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index cf5be81ad9..b29a53c3fa 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -8,6 +8,7 @@ import ( ma "github.com/multiformats/go-multiaddr" ) +// AutoNATProto identifies the autonat service protocol const AutoNATProto = "/libp2p/autonat/1.0.0" func newDialMessage(pi peer.AddrInfo) *pb.Message { From 92a3a76d88fc9e10af809afe7322581d4b81be96 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 15 Apr 2020 19:43:28 -0700 Subject: [PATCH 101/132] clarify dialPolicy comment --- p2p/host/autonat/dialpolicy.go | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/p2p/host/autonat/dialpolicy.go b/p2p/host/autonat/dialpolicy.go index 4c35680f34..a9f47e92db 100644 --- a/p2p/host/autonat/dialpolicy.go +++ b/p2p/host/autonat/dialpolicy.go @@ -52,10 +52,9 @@ func (d *dialPolicy) skipDial(addr ma.Multiaddr) bool { } // skipPeer indicates that the collection of multiaddresses representing a peer -// isn't worth attempted dialing. Addresses are dialed individually, and while -// individual addresses for a peer may be worth considering, there are some -// factors, like the presence of the same public address as the local host, -// that may make the peer undesirable to dial as a whole. +// isn't worth attempted dialing. If one of the addresses matches an address +// we believe is ours, we exclude the peer, even if there are other valid +// public addresses in the list. func (d *dialPolicy) skipPeer(addrs []ma.Multiaddr) bool { localAddrs := d.host.Addrs() localHosts := make([]net.IP, 0) From 9e9bcd1344a590041c1bcd0b95d1da6d42a53c3b Mon Sep 17 00:00:00 2001 From: Will Scott Date: Thu, 23 Apr 2020 10:27:15 -0700 Subject: [PATCH 102/132] refactor / separation of events and scheduling --- p2p/host/autonat/autonat.go | 78 ++++++++++++++++++++++---------- p2p/host/autonat/autonat_test.go | 17 ++++++- p2p/host/autonat/options.go | 10 ++-- 3 files changed, 74 insertions(+), 31 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index ebf713470b..98df62a23f 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -36,9 +36,11 @@ type AmbientAutoNAT struct { // If it is <3, then multiple autoNAT peers may be contacted for dialback // If only a single autoNAT peer is known, then the confidence increases // for each failure until it reaches 3. - confidence int - lastInbound time.Time - lastProbe time.Time + confidence int + lastInbound time.Time + lastProbeTry time.Time + lastProbe time.Time + recentProbes map[peer.ID]time.Time service *autoNATService @@ -108,6 +110,7 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { emitReachabilityChanged: emitReachabilityChanged, service: service, + recentProbes: make(map[peer.ID]time.Time), } as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) @@ -169,7 +172,6 @@ func (as *AmbientAutoNAT) background() { var peer peer.ID for { - peer = "" select { // new inbound connection. case conn := <-as.inboundConn: @@ -193,8 +195,8 @@ func (as *AmbientAutoNAT) background() { // peer identification occured. case idev := <-IDChan: peer = idev.(event.EvtPeerIdentificationCompleted).Peer - if s, err := as.host.Peerstore().SupportsProtocols(peer, AutoNATProto); len(s) == 0 || err != nil { - peer = "" + if s, err := as.host.Peerstore().SupportsProtocols(peer, AutoNATProto); err != nil || len(s) > 0 { + as.tryProbe(peer) } // probe finished. @@ -204,6 +206,8 @@ func (as *AmbientAutoNAT) background() { } as.recordObservation(result) case <-timer.C: + peer = as.getPeerToProbe() + as.tryProbe(peer) timerRunning = false case <-as.ctx.Done(): return @@ -213,25 +217,38 @@ func (as *AmbientAutoNAT) background() { if timerRunning && !timer.Stop() { <-timer.C } - timer.Reset(as.scheduleProbe(peer)) + timer.Reset(as.scheduleProbe()) timerRunning = true } } -// scheduleProbe calculates when the next probe should be scheduled for, -// and launches it if that time is now. peer is an an optional hint -// for prioritizing a specific peer in the probing queue. -func (as *AmbientAutoNAT) scheduleProbe(peer peer.ID) time.Duration { +func (as *AmbientAutoNAT) cleanupRecentProbes() { + fixedNow := time.Now() + for k, v := range as.recentProbes { + if fixedNow.Sub(v) > as.throttlePeerPeriod { + delete(as.recentProbes, k) + } + } +} + +// scheduleProbe calculates when the next probe should be scheduled for. +func (as *AmbientAutoNAT) scheduleProbe() time.Duration { // Our baseline is a probe every 'AutoNATRefreshInterval' // This is modulated by: // * if we are in an unknown state, or have low confidence, that should drop to 'AutoNATRetryInterval' // * recent inbound connections (implying continued connectivity) should decrease the retry when public // * recent inbound connections when not public mean we should try more actively to see if we're public. - // * if we find out in connecting to a peer that it supports the autonat service, we should opportunistically consider probing early. fixedNow := time.Now() currentStatus := as.status.Load().(autoNATResult) nextProbe := fixedNow + // Don't look for peers in the peer store more than once per second. + if !as.lastProbeTry.IsZero() { + backoff := as.lastProbeTry.Add(time.Second) + if backoff.After(nextProbe) { + nextProbe = backoff + } + } if !as.lastProbe.IsZero() { untilNext := as.config.refreshInterval if currentStatus.Reachability == network.ReachabilityUnknown { @@ -243,21 +260,12 @@ func (as *AmbientAutoNAT) scheduleProbe(peer peer.ID) time.Duration { } else if currentStatus.Reachability != network.ReachabilityPublic && as.lastInbound.After(as.lastProbe) { untilNext /= 5 } - if as.confidence < 3 && peer != "" { - untilNext /= 5 - } - nextProbe = as.lastProbe.Add(untilNext) - } - if fixedNow.After(nextProbe) || fixedNow == nextProbe { - if err := peer.Validate(); err != nil { - peer = as.getPeerToProbe() - } - if peer.Validate() == nil && as.tryProbe(peer) { - as.lastProbe = fixedNow + if as.lastProbe.Add(untilNext).After(nextProbe) { + nextProbe = as.lastProbe.Add(untilNext) } - return as.config.retryInterval } + return nextProbe.Sub(fixedNow) } @@ -326,10 +334,23 @@ func (as *AmbientAutoNAT) recordObservation(observation autoNATResult) { } func (as *AmbientAutoNAT) tryProbe(p peer.ID) bool { + as.lastProbeTry = time.Now() + if p.Validate() != nil { + return false + } + + if lastTime, ok := as.recentProbes[p]; ok { + if time.Since(lastTime) < as.throttlePeerPeriod { + return false + } + } + as.cleanupRecentProbes() + info := as.host.Peerstore().PeerInfo(p) - // TODO: reject if recently probed / on backoff if !as.config.dialPolicy.skipPeer(info.Addrs) { + as.recentProbes[p] = time.Now() + as.lastProbe = time.Now() go as.probe(&info) return true } @@ -370,6 +391,13 @@ func (as *AmbientAutoNAT) getPeerToProbe() peer.ID { continue } + // Exclude peers in backoff. + if lastTime, ok := as.recentProbes[p]; ok { + if time.Since(lastTime) < as.throttlePeerPeriod { + continue + } + } + if !as.config.dialPolicy.skipPeer(info.Addrs) { candidates = append(candidates, p) } diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index a9629b1bb2..4146dd8a01 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -56,9 +56,16 @@ func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, A h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) a, _ := New(ctx, h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) a.(*AmbientAutoNAT).config.dialPolicy.allowSelfDials = true + a.(*AmbientAutoNAT).config.throttlePeerPeriod = 100 * time.Millisecond return h, a } +func identifyAsServer(server, recip host.Host) { + recip.Peerstore().AddAddrs(server.ID(), server.Addrs(), time.Minute) + recip.Peerstore().AddProtocols(server.ID(), AutoNATProto) + +} + func connect(t *testing.T, a, b host.Host) { pinfo := peer.AddrInfo{ID: a.ID(), Addrs: a.Addrs()} err := b.Connect(context.Background(), pinfo) @@ -129,7 +136,7 @@ func TestAutoNATPublic(t *testing.T) { } connect(t, hs, hc) - time.Sleep(200 * time.Millisecond) + time.Sleep(1500 * time.Millisecond) status = an.Status() if status != network.ReachabilityPublic { @@ -158,7 +165,7 @@ func TestAutoNATPublictoPrivate(t *testing.T) { } connect(t, hs, hc) - time.Sleep(200 * time.Millisecond) + time.Sleep(1500 * time.Millisecond) status = an.Status() if status != network.ReachabilityPublic { @@ -168,8 +175,14 @@ func TestAutoNATPublictoPrivate(t *testing.T) { expectEvent(t, s, network.ReachabilityPublic) hs.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) + hps := makeAutoNATServicePrivate(ctx, t) + connect(t, hps, hc) + identifyAsServer(hps, hc) + time.Sleep(2 * time.Second) + expectEvent(t, s, network.ReachabilityPrivate) + status = an.Status() if status != network.ReachabilityPrivate { t.Fatalf("unexpected NAT status: %d", status) diff --git a/p2p/host/autonat/options.go b/p2p/host/autonat/options.go index d7c77f9e96..390533137b 100644 --- a/p2p/host/autonat/options.go +++ b/p2p/host/autonat/options.go @@ -19,10 +19,11 @@ type config struct { reachability network.Reachability // client - bootDelay time.Duration - retryInterval time.Duration - refreshInterval time.Duration - requestTimeout time.Duration + bootDelay time.Duration + retryInterval time.Duration + refreshInterval time.Duration + requestTimeout time.Duration + throttlePeerPeriod time.Duration // server dialTimeout time.Duration @@ -38,6 +39,7 @@ var defaults = func(c *config) error { c.retryInterval = 90 * time.Second c.refreshInterval = 15 * time.Minute c.requestTimeout = 30 * time.Second + c.throttlePeerPeriod = 90 * time.Second c.dialTimeout = 15 * time.Second c.maxPeerAddresses = 16 From 439837bd439fb4771c2061cf44dfda81ab671700 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Wed, 29 Apr 2020 18:42:25 -0700 Subject: [PATCH 103/132] address nits --- p2p/host/autonat/autonat.go | 67 +++++++++++++++++++++++-------------- 1 file changed, 41 insertions(+), 26 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 98df62a23f..cfde8b27c9 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -45,6 +45,7 @@ type AmbientAutoNAT struct { service *autoNATService emitReachabilityChanged event.Emitter + subscriber event.Subscription } // StaticAutoNAT is a simple AutoNAT implementation when a single NAT status is desired. @@ -114,6 +115,12 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { } as.status.Store(autoNATResult{network.ReachabilityUnknown, nil}) + subscriber, err := as.host.EventBus().Subscribe([]interface{}{new(event.EvtLocalAddressesUpdated), new(event.EvtPeerIdentificationCompleted)}) + if err != nil { + return nil, err + } + as.subscriber = subscriber + h.Network().Notify(as) go as.background() @@ -157,13 +164,8 @@ func (as *AmbientAutoNAT) background() { delay := as.config.bootDelay var lastAddrUpdated time.Time - subAddrUpdated, _ := as.host.EventBus().Subscribe(new(event.EvtLocalAddressesUpdated)) - addrUpdatedChan := subAddrUpdated.Out() - defer subAddrUpdated.Close() - - subIDOccured, _ := as.host.EventBus().Subscribe(new(event.EvtPeerIdentificationCompleted)) - IDChan := subIDOccured.Out() - defer subIDOccured.Close() + subChan := as.subscriber.Out() + defer as.subscriber.Close() defer as.emitReachabilityChanged.Close() timer := time.NewTimer(delay) @@ -180,23 +182,28 @@ func (as *AmbientAutoNAT) background() { if ca.address != nil { localAddrs = append(localAddrs, ca.address) } - if !ipInList(conn.RemoteMultiaddr(), localAddrs) { + if manet.IsPublicAddr(conn.RemoteMultiaddr()) && + !ipInList(conn.RemoteMultiaddr(), localAddrs) { as.lastInbound = time.Now() } - case <-addrUpdatedChan: - if !lastAddrUpdated.Add(time.Second).After(time.Now()) { - lastAddrUpdated = time.Now() - if as.confidence > 1 { - as.confidence-- + case e := <-subChan: + switch e.(type) { + case event.EvtLocalAddressesUpdated: + if !lastAddrUpdated.Add(time.Second).After(time.Now()) { + lastAddrUpdated = time.Now() + if as.confidence > 1 { + as.confidence-- + } + } + case event.EvtPeerIdentificationCompleted: + peer = e.(event.EvtPeerIdentificationCompleted).Peer + if s, err := as.host.Peerstore().SupportsProtocols(peer, AutoNATProto); err == nil && len(s) > 0 { + currentStatus := as.status.Load().(autoNATResult) + if currentStatus.Reachability == network.ReachabilityUnknown { + as.tryProbe(peer) + } } - } - - // peer identification occured. - case idev := <-IDChan: - peer = idev.(event.EvtPeerIdentificationCompleted).Peer - if s, err := as.host.Peerstore().SupportsProtocols(peer, AutoNATProto); err != nil || len(s) > 0 { - as.tryProbe(peer) } // probe finished. @@ -364,15 +371,23 @@ func (as *AmbientAutoNAT) probe(pi *peer.AddrInfo) { a, err := cli.DialBack(ctx, pi.ID) + var result autoNATResult switch { case err == nil: log.Debugf("Dialback through %s successful; public address is %s", pi.ID.Pretty(), a.String()) - as.observations <- autoNATResult{network.ReachabilityPublic, a} + result.Reachability = network.ReachabilityPublic + result.address = a case IsDialError(err): log.Debugf("Dialback through %s failed", pi.ID.Pretty()) - as.observations <- autoNATResult{network.ReachabilityPrivate, nil} + result.Reachability = network.ReachabilityPrivate default: - as.observations <- autoNATResult{network.ReachabilityUnknown, nil} + result.Reachability = network.ReachabilityUnknown + } + + select { + case as.observations <- result: + case <-as.ctx.Done(): + return } } @@ -398,11 +413,11 @@ func (as *AmbientAutoNAT) getPeerToProbe() peer.ID { } } - if !as.config.dialPolicy.skipPeer(info.Addrs) { - candidates = append(candidates, p) + if as.config.dialPolicy.skipPeer(info.Addrs) { + continue } + candidates = append(candidates, p) } - // TODO: track and exclude recently probed peers. if len(candidates) == 0 { return "" From 9db24a7d935d475dadd5e52034152f4c803154c0 Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Wed, 29 Apr 2020 20:18:19 -0700 Subject: [PATCH 104/132] fix: a type switch nit --- p2p/host/autonat/autonat.go | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index cfde8b27c9..a11f940524 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -171,8 +171,6 @@ func (as *AmbientAutoNAT) background() { timer := time.NewTimer(delay) defer timer.Stop() timerRunning := true - var peer peer.ID - for { select { // new inbound connection. @@ -188,7 +186,7 @@ func (as *AmbientAutoNAT) background() { } case e := <-subChan: - switch e.(type) { + switch e := e.(type) { case event.EvtLocalAddressesUpdated: if !lastAddrUpdated.Add(time.Second).After(time.Now()) { lastAddrUpdated = time.Now() @@ -197,13 +195,14 @@ func (as *AmbientAutoNAT) background() { } } case event.EvtPeerIdentificationCompleted: - peer = e.(event.EvtPeerIdentificationCompleted).Peer - if s, err := as.host.Peerstore().SupportsProtocols(peer, AutoNATProto); err == nil && len(s) > 0 { + if s, err := as.host.Peerstore().SupportsProtocols(e.Peer, AutoNATProto); err == nil && len(s) > 0 { currentStatus := as.status.Load().(autoNATResult) if currentStatus.Reachability == network.ReachabilityUnknown { - as.tryProbe(peer) + as.tryProbe(e.Peer) } } + default: + log.Errorf("unknown event type: %T", e) } // probe finished. @@ -213,7 +212,7 @@ func (as *AmbientAutoNAT) background() { } as.recordObservation(result) case <-timer.C: - peer = as.getPeerToProbe() + peer := as.getPeerToProbe() as.tryProbe(peer) timerRunning = false case <-as.ctx.Done(): From 67e4a6d15613afa99ae5002bab83cc7dbfa16028 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ra=C3=BAl=20Kripalani?= Date: Thu, 30 Jul 2020 11:25:00 +0100 Subject: [PATCH 105/132] upgrade deps + interoperable uvarint delimited writer/reader. (#95) --- p2p/host/autonat/autonat_test.go | 9 +++++---- p2p/host/autonat/client.go | 11 ++++++----- p2p/host/autonat/svc.go | 6 +++--- 3 files changed, 14 insertions(+), 12 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 4146dd8a01..fef03a7a9e 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -5,15 +5,16 @@ import ( "testing" "time" - pb "github.com/libp2p/go-libp2p-autonat/pb" "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" - ggio "github.com/gogo/protobuf/io" + pb "github.com/libp2p/go-libp2p-autonat/pb" + bhost "github.com/libp2p/go-libp2p-blankhost" swarmt "github.com/libp2p/go-libp2p-swarm/testing" + "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" ) @@ -32,7 +33,7 @@ func makeAutoNATServicePublic(ctx context.Context, t *testing.T) host.Host { func sayAutoNATPrivate(s network.Stream) { defer s.Close() - w := ggio.NewDelimitedWriter(s) + w := protoio.NewDelimitedWriter(s) res := pb.Message{ Type: pb.Message_DIAL_RESPONSE.Enum(), DialResponse: newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses"), @@ -42,7 +43,7 @@ func sayAutoNATPrivate(s network.Stream) { func sayAutoNATPublic(s network.Stream) { defer s.Close() - w := ggio.NewDelimitedWriter(s) + w := protoio.NewDelimitedWriter(s) res := pb.Message{ Type: pb.Message_DIAL_RESPONSE.Enum(), DialResponse: newDialResponseOK(s.Conn().RemoteMultiaddr()), diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index e2ab8a3df2..a6a059bfc4 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -4,13 +4,14 @@ import ( "context" "fmt" - pb "github.com/libp2p/go-libp2p-autonat/pb" "github.com/libp2p/go-libp2p-core/helpers" - - ggio "github.com/gogo/protobuf/io" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" + + pb "github.com/libp2p/go-libp2p-autonat/pb" + + protoio "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" ) @@ -43,8 +44,8 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) // don't care about being nice. defer helpers.FullClose(s) - r := ggio.NewDelimitedReader(s, network.MessageSizeMax) - w := ggio.NewDelimitedWriter(s) + r := protoio.NewDelimitedReader(s, network.MessageSizeMax) + w := protoio.NewDelimitedWriter(s) req := newDialMessage(peer.AddrInfo{ID: c.h.ID(), Addrs: c.addrFunc()}) err = w.WriteMsg(req) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 481de16d82..165cde670b 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -15,7 +15,7 @@ import ( pb "github.com/libp2p/go-libp2p-autonat/pb" - ggio "github.com/gogo/protobuf/io" + "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr-net" ) @@ -56,8 +56,8 @@ func (as *autoNATService) handleStream(s network.Stream) { pid := s.Conn().RemotePeer() log.Debugf("New stream from %s", pid.Pretty()) - r := ggio.NewDelimitedReader(s, network.MessageSizeMax) - w := ggio.NewDelimitedWriter(s) + r := protoio.NewDelimitedReader(s, network.MessageSizeMax) + w := protoio.NewDelimitedWriter(s) var req pb.Message var res pb.Message From ec8d9607cba9c4d0f057345fc909ebdc7f84d141 Mon Sep 17 00:00:00 2001 From: Will Scott Date: Mon, 3 Aug 2020 09:31:06 -0700 Subject: [PATCH 106/132] static nat shouldn't call host.Addrs() avoid potential call loop --- p2p/host/autonat/autonat.go | 4 ---- 1 file changed, 4 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index a11f940524..ab3416a70e 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -443,9 +443,5 @@ func (s *StaticAutoNAT) PublicAddr() (ma.Multiaddr, error) { if s.reachability != network.ReachabilityPublic { return nil, errors.New("NAT status is not public") } - addrs := s.host.Addrs() - if len(addrs) > 0 { - return s.host.Addrs()[0], nil - } return nil, errors.New("No available address") } From 50313bd7a09ffb9c010bfe39d0056d5d5f2accbd Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Wed, 2 Sep 2020 13:25:47 -0700 Subject: [PATCH 107/132] feat: update to go-libp2p-core 0.7.0 This uses the latest stream interface changes. (it also fixes a bug in the test) --- p2p/host/autonat/autonat.go | 2 +- p2p/host/autonat/autonat_test.go | 2 +- p2p/host/autonat/client.go | 3 +-- p2p/host/autonat/dialpolicy.go | 2 +- p2p/host/autonat/notify.go | 2 +- p2p/host/autonat/svc.go | 5 ++--- 6 files changed, 7 insertions(+), 9 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index ab3416a70e..f94b6c8a38 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -15,7 +15,7 @@ import ( logging "github.com/ipfs/go-log" ma "github.com/multiformats/go-multiaddr" - manet "github.com/multiformats/go-multiaddr-net" + manet "github.com/multiformats/go-multiaddr/net" ) var log = logging.Logger("autonat") diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index fef03a7a9e..5117cba53b 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -108,7 +108,7 @@ func TestAutoNATPrivate(t *testing.T) { } connect(t, hs, hc) - time.Sleep(1 * time.Second) + time.Sleep(2 * time.Second) status = an.Status() if status != network.ReachabilityPrivate { diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index a6a059bfc4..0821d4ecb5 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -4,7 +4,6 @@ import ( "context" "fmt" - "github.com/libp2p/go-libp2p-core/helpers" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" @@ -42,7 +41,7 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } // Might as well just reset the stream. Once we get to this point, we // don't care about being nice. - defer helpers.FullClose(s) + defer s.Close() r := protoio.NewDelimitedReader(s, network.MessageSizeMax) w := protoio.NewDelimitedWriter(s) diff --git a/p2p/host/autonat/dialpolicy.go b/p2p/host/autonat/dialpolicy.go index a9f47e92db..653882cbad 100644 --- a/p2p/host/autonat/dialpolicy.go +++ b/p2p/host/autonat/dialpolicy.go @@ -5,7 +5,7 @@ import ( "github.com/libp2p/go-libp2p-core/host" ma "github.com/multiformats/go-multiaddr" - manet "github.com/multiformats/go-multiaddr-net" + manet "github.com/multiformats/go-multiaddr/net" ) type dialPolicy struct { diff --git a/p2p/host/autonat/notify.go b/p2p/host/autonat/notify.go index 44c80fd425..c5811f160e 100644 --- a/p2p/host/autonat/notify.go +++ b/p2p/host/autonat/notify.go @@ -4,7 +4,7 @@ import ( "github.com/libp2p/go-libp2p-core/network" ma "github.com/multiformats/go-multiaddr" - manet "github.com/multiformats/go-multiaddr-net" + manet "github.com/multiformats/go-multiaddr/net" ) var _ network.Notifiee = (*AmbientAutoNAT)(nil) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 165cde670b..bdde08928a 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -8,7 +8,6 @@ import ( "sync" "time" - "github.com/libp2p/go-libp2p-core/helpers" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" "github.com/libp2p/go-libp2p-core/peerstore" @@ -17,7 +16,7 @@ import ( "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" - manet "github.com/multiformats/go-multiaddr-net" + manet "github.com/multiformats/go-multiaddr/net" ) // AutoNATService provides NAT autodetection services to other peers @@ -51,7 +50,7 @@ func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) } func (as *autoNATService) handleStream(s network.Stream) { - defer helpers.FullClose(s) + defer s.Close() pid := s.Conn().RemotePeer() log.Debugf("New stream from %s", pid.Pretty()) From 87e93561840ecb7fd271cf0e4eab734c91f800de Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Wed, 2 Sep 2020 13:53:14 -0700 Subject: [PATCH 108/132] chore: update pb --- p2p/host/autonat/pb/autonat.pb.go | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/p2p/host/autonat/pb/autonat.pb.go b/p2p/host/autonat/pb/autonat.pb.go index b176cb99e0..a22b5e99e3 100644 --- a/p2p/host/autonat/pb/autonat.pb.go +++ b/p2p/host/autonat/pb/autonat.pb.go @@ -1217,9 +1217,6 @@ func skipAutonat(dAtA []byte) (n int, err error) { return 0, ErrInvalidLengthAutonat } iNdEx += length - if iNdEx < 0 { - return 0, ErrInvalidLengthAutonat - } case 3: depth++ case 4: @@ -1232,6 +1229,9 @@ func skipAutonat(dAtA []byte) (n int, err error) { default: return 0, fmt.Errorf("proto: illegal wireType %d", wireType) } + if iNdEx < 0 { + return 0, ErrInvalidLengthAutonat + } if depth == 0 { return iNdEx, nil } From fad8fa62644829c5bb2fe32e7f5ab02f6ab8975e Mon Sep 17 00:00:00 2001 From: aarshkshah1992 Date: Thu, 17 Dec 2020 11:17:10 +0530 Subject: [PATCH 109/132] fix: stream read timeout --- p2p/host/autonat/svc.go | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index bdde08928a..1e944139a6 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -19,6 +19,8 @@ import ( manet "github.com/multiformats/go-multiaddr/net" ) +var streamReadTimeout = 60 * time.Second + // AutoNATService provides NAT autodetection services to other peers type autoNATService struct { ctx context.Context @@ -50,6 +52,8 @@ func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) } func (as *autoNATService) handleStream(s network.Stream) { + s.SetReadDeadline(time.Now().Add(streamReadTimeout)) + defer s.Close() pid := s.Conn().RemotePeer() From bb295a9cc9d105171986e3cd81e6b47c1a9d44c6 Mon Sep 17 00:00:00 2001 From: huoju Date: Wed, 17 Feb 2021 23:22:18 -0500 Subject: [PATCH 110/132] replace the port number for double NAT mapping --- p2p/host/autonat/svc.go | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index bdde08928a..41477a9332 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -3,8 +3,10 @@ package autonat import ( "context" "errors" + "fmt" "math/rand" "net" + "strings" "sync" "time" @@ -115,6 +117,7 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me obsHost, _ = manet.ToIP(obsaddr) } + obscodename, obsport, _ := as.extractPort(obsaddr) for _, maddr := range mpi.GetAddrs() { addr, err := ma.NewMultiaddrBytes(maddr) if err != nil { @@ -123,7 +126,18 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me } if as.config.dialPolicy.skipDial(addr) { - continue + if manet.IsPrivateAddr(addr) { + addrcodename, addrport, err := as.extractPort(addr) + if err == nil && addrcodename == obscodename && addrport != obsport { //make a new address + obsportstr := fmt.Sprintf("/%s/%s", obscodename, obsport) + addrportstr := fmt.Sprintf("/%s/%s", addrcodename, addrport) + addr, err = ma.NewMultiaddr(strings.Replace(obsaddr.String(), obsportstr, addrportstr, -1)) //replace the private addr + } else { + continue + } + } else { + continue + } } if ip, err := manet.ToIP(addr); err != nil || !obsHost.Equal(ip) { @@ -228,3 +242,16 @@ func (as *autoNATService) background(ctx context.Context) { } } } + +func (as *autoNATService) extractPort(m ma.Multiaddr) (name string, port string, err error) { + for _, p := range m.Protocols() { + if p.Code == ma.P_TCP || p.Code == ma.P_UDP { + v, err := m.ValueForProtocol(p.Code) + if err != nil { + return "", "", err + } + return p.Name, v, nil + } + } + return "", "", errors.New("can't extract port") +} From f193d0e2533c69aa2a8de0612ddbb4ec13243103 Mon Sep 17 00:00:00 2001 From: huoju Date: Fri, 19 Feb 2021 01:13:16 -0500 Subject: [PATCH 111/132] a better implementation to replace the port number for double NAT mapping --- p2p/host/autonat/svc.go | 80 ++++++++++++++++++++++++++---------- p2p/host/autonat/svc_test.go | 22 ++++++++++ 2 files changed, 81 insertions(+), 21 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 41477a9332..f78429f8fb 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -1,12 +1,11 @@ package autonat import ( + "bytes" "context" "errors" - "fmt" "math/rand" "net" - "strings" "sync" "time" @@ -117,7 +116,6 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me obsHost, _ = manet.ToIP(obsaddr) } - obscodename, obsport, _ := as.extractPort(obsaddr) for _, maddr := range mpi.GetAddrs() { addr, err := ma.NewMultiaddrBytes(maddr) if err != nil { @@ -126,18 +124,11 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me } if as.config.dialPolicy.skipDial(addr) { - if manet.IsPrivateAddr(addr) { - addrcodename, addrport, err := as.extractPort(addr) - if err == nil && addrcodename == obscodename && addrport != obsport { //make a new address - obsportstr := fmt.Sprintf("/%s/%s", obscodename, obsport) - addrportstr := fmt.Sprintf("/%s/%s", addrcodename, addrport) - addr, err = ma.NewMultiaddr(strings.Replace(obsaddr.String(), obsportstr, addrportstr, -1)) //replace the private addr - } else { - continue - } - } else { - continue + succ, newobsaddr := patchObsaddr(addr, obsaddr) + if succ == true { + addr = newobsaddr } + continue } if ip, err := manet.ToIP(addr); err != nil || !obsHost.Equal(ip) { @@ -243,15 +234,62 @@ func (as *autoNATService) background(ctx context.Context) { } } -func (as *autoNATService) extractPort(m ma.Multiaddr) (name string, port string, err error) { - for _, p := range m.Protocols() { - if p.Code == ma.P_TCP || p.Code == ma.P_UDP { - v, err := m.ValueForProtocol(p.Code) +//replace obsaddr's port number with the port number of a +func patchObsaddr(a ma.Multiaddr, obsaddr ma.Multiaddr) (bool, ma.Multiaddr) { + if a == nil || obsaddr == nil { + return false, nil + } + var rawport []byte + var code int + var newc ma.Component + isValid := false + ma.ForEach(a, func(c ma.Component) bool { + switch c.Protocol().Code { + case ma.P_UDP, ma.P_TCP: + code = c.Protocol().Code + rawport = c.RawValue() + newc = c + return !isValid + case ma.P_IP4, ma.P_IP6: + isValid = true + } + return true + }) + + if isValid == true && len(rawport) > 0 { + obsbytes := obsaddr.Bytes() + obsoffset := 0 + isObsValid := false + isReplaced := false + var buffer bytes.Buffer + ma.ForEach(obsaddr, func(c ma.Component) bool { + switch c.Protocol().Code { + case ma.P_UDP, ma.P_TCP: + if code == c.Protocol().Code && isObsValid == true { //obsaddr has the same type protocol, and we can replace it. + if bytes.Compare(rawport, c.RawValue()) != 0 { + buffer.Write(obsbytes[:obsoffset]) + buffer.Write(newc.Bytes()) + tail := obsoffset + len(c.Bytes()) + if len(obsbytes)-tail > 0 { + buffer.Write(obsbytes[tail:]) + } + isReplaced = true + } + return false + } + case ma.P_IP4, ma.P_IP6: + isObsValid = true + } + obsoffset += len(c.Bytes()) + return true + }) + if isReplaced == true { + newobsaddr, err := ma.NewMultiaddrBytes(buffer.Bytes()) if err != nil { - return "", "", err + return false, nil } - return p.Name, v, nil + return true, newobsaddr } } - return "", "", errors.New("can't extract port") + return false, nil } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index e1df6c8a8c..0b3a3a26bc 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -207,3 +207,25 @@ func TestAutoNATServiceStartup(t *testing.T) { t.Fatalf("autonat should report public, but didn't") } } + +func TestMultiaddrPatchSuccess(t *testing.T) { + m1, _ := ma.NewMultiaddr("/ip4/192.168.0.10/tcp/64555") + m2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/tcp/19005") + correctm2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/tcp/64555") + succ, newm2 := patchObsaddr(m1, m2) + if succ == false { + t.Fatalf("patchObsaddr failed, was %s", m2) + } + if newm2.Equal(correctm2) == false { + t.Fatalf("patchObsaddr success, but new obsaddr is %s should be %s", newm2, correctm2) + } +} + +func TestMultiaddrPatchError(t *testing.T) { + m1, _ := ma.NewMultiaddr("/ip4/192.168.0.10/tcp/64555") + m2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/udp/19005") + succ, newm2 := patchObsaddr(m1, m2) + if succ == true { + t.Fatalf("this address should not be patch, new address %s", newm2) + } +} From 31eb8965447d51dceeca52d5bbddd9afebbed183 Mon Sep 17 00:00:00 2001 From: huoju Date: Fri, 19 Feb 2021 02:07:51 -0500 Subject: [PATCH 112/132] bug fixed. don't jump out of the loop if obsaddr be replaced --- p2p/host/autonat/svc.go | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index f78429f8fb..bb0c46a122 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -127,8 +127,9 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me succ, newobsaddr := patchObsaddr(addr, obsaddr) if succ == true { addr = newobsaddr + } else { + continue } - continue } if ip, err := manet.ToIP(addr); err != nil || !obsHost.Equal(ip) { From aab65a0d9385a5dca10d3fff021a2e2c832ccbd7 Mon Sep 17 00:00:00 2001 From: Ju Huo Date: Mon, 22 Feb 2021 11:38:02 -0500 Subject: [PATCH 113/132] Update svc.go Co-authored-by: Will --- p2p/host/autonat/svc.go | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index bb0c46a122..b0793c09b3 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -235,8 +235,8 @@ func (as *autoNATService) background(ctx context.Context) { } } -//replace obsaddr's port number with the port number of a -func patchObsaddr(a ma.Multiaddr, obsaddr ma.Multiaddr) (bool, ma.Multiaddr) { +// patchObsaddr replaces obsaddr's port number with the port number of `a` +func patchObsaddr(a, obsaddr ma.Multiaddr) (bool, ma.Multiaddr) { if a == nil || obsaddr == nil { return false, nil } From f9b60bf78dd5c47109ce50f07331c0375d5357ba Mon Sep 17 00:00:00 2001 From: huoju Date: Mon, 22 Feb 2021 12:00:13 -0500 Subject: [PATCH 114/132] improve readability from the review comments --- p2p/host/autonat/svc.go | 22 ++++++++++------------ p2p/host/autonat/svc_test.go | 12 ++++++------ 2 files changed, 16 insertions(+), 18 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index b0793c09b3..1be5e228b6 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -124,8 +124,8 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me } if as.config.dialPolicy.skipDial(addr) { - succ, newobsaddr := patchObsaddr(addr, obsaddr) - if succ == true { + err, newobsaddr := patchObsaddr(addr, obsaddr) + if err == nil { addr = newobsaddr } else { continue @@ -235,16 +235,16 @@ func (as *autoNATService) background(ctx context.Context) { } } -// patchObsaddr replaces obsaddr's port number with the port number of `a` -func patchObsaddr(a, obsaddr ma.Multiaddr) (bool, ma.Multiaddr) { - if a == nil || obsaddr == nil { - return false, nil +// patchObsaddr replaces obsaddr's port number with the port number of `localaddr` +func patchObsaddr(localaddr, obsaddr ma.Multiaddr) (error, ma.Multiaddr) { + if localaddr == nil || obsaddr == nil { + return errors.New("localaddr and obsaddr can't be nil"), nil } var rawport []byte var code int var newc ma.Component isValid := false - ma.ForEach(a, func(c ma.Component) bool { + ma.ForEach(localaddr, func(c ma.Component) bool { switch c.Protocol().Code { case ma.P_UDP, ma.P_TCP: code = c.Protocol().Code @@ -286,11 +286,9 @@ func patchObsaddr(a, obsaddr ma.Multiaddr) (bool, ma.Multiaddr) { }) if isReplaced == true { newobsaddr, err := ma.NewMultiaddrBytes(buffer.Bytes()) - if err != nil { - return false, nil - } - return true, newobsaddr + return err, newobsaddr } } - return false, nil + + return errors.New("only same protocol address can be patched."), nil } diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 0b3a3a26bc..3faa8cbee7 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -212,9 +212,9 @@ func TestMultiaddrPatchSuccess(t *testing.T) { m1, _ := ma.NewMultiaddr("/ip4/192.168.0.10/tcp/64555") m2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/tcp/19005") correctm2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/tcp/64555") - succ, newm2 := patchObsaddr(m1, m2) - if succ == false { - t.Fatalf("patchObsaddr failed, was %s", m2) + err, newm2 := patchObsaddr(m1, m2) + if err != nil { + t.Fatalf("patchObsaddr failed, was %s error %s", m2, err) } if newm2.Equal(correctm2) == false { t.Fatalf("patchObsaddr success, but new obsaddr is %s should be %s", newm2, correctm2) @@ -224,8 +224,8 @@ func TestMultiaddrPatchSuccess(t *testing.T) { func TestMultiaddrPatchError(t *testing.T) { m1, _ := ma.NewMultiaddr("/ip4/192.168.0.10/tcp/64555") m2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/udp/19005") - succ, newm2 := patchObsaddr(m1, m2) - if succ == true { - t.Fatalf("this address should not be patch, new address %s", newm2) + err, newm2 := patchObsaddr(m1, m2) + if err == nil { + t.Fatalf("this address should not be patched, new address: %s", newm2) } } From f66422d54657fbac2797368aafe4c7477632a829 Mon Sep 17 00:00:00 2001 From: Steven Allen Date: Wed, 24 Feb 2021 17:01:03 -0800 Subject: [PATCH 115/132] fix: simplify address replacement We only ever want to dial the remote peer's observed address (to prevent DoS attacks), so we might as well _always_ replace the reported addresses with the observed address. This also fixes a few issues in the original PR: * Simpler logic. * Replaces the IP address, not the port. That's what we actually care about. * Won't accidentally dial "skipped" protocols (e.g., circuit transport). --- p2p/host/autonat/svc.go | 107 +++++++++++------------------------ p2p/host/autonat/svc_test.go | 22 ------- 2 files changed, 34 insertions(+), 95 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 1be5e228b6..75a3614365 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -1,11 +1,9 @@ package autonat import ( - "bytes" "context" "errors" "math/rand" - "net" "sync" "time" @@ -17,7 +15,6 @@ import ( "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" - manet "github.com/multiformats/go-multiaddr/net" ) // AutoNATService provides NAT autodetection services to other peers @@ -108,14 +105,27 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me addrs := make([]ma.Multiaddr, 0, as.config.maxPeerAddresses) seen := make(map[string]struct{}) - // add observed addr to the list of addresses to dial - var obsHost net.IP - if !as.config.dialPolicy.skipDial(obsaddr) { - addrs = append(addrs, obsaddr) - seen[obsaddr.String()] = struct{}{} - obsHost, _ = manet.ToIP(obsaddr) + // Don't even try to dial peers with blocked remote addresses. In order to dial a peer, we + // need to know their public IP address, and it needs to be different from our public IP + // address. + if as.config.dialPolicy.skipDial(obsaddr) { + return newDialResponseError(pb.Message_E_DIAL_ERROR, "refusing to dial peer with blocked observed address") + } + + // Determine the peer's IP address. + hostIP, _ := ma.SplitFirst(obsaddr) + switch hostIP.Protocol().Code { + case ma.P_IP4, ma.P_IP6: + default: + // This shouldn't be possible as we should skip all addresses that don't include + // public IP addresses. + return newDialResponseError(pb.Message_E_INTERNAL_ERROR, "expected an IP address") } + // add observed addr to the list of addresses to dial + addrs = append(addrs, obsaddr) + seen[obsaddr.String()] = struct{}{} + for _, maddr := range mpi.GetAddrs() { addr, err := ma.NewMultiaddrBytes(maddr) if err != nil { @@ -123,16 +133,25 @@ func (as *autoNATService) handleDial(p peer.ID, obsaddr ma.Multiaddr, mpi *pb.Me continue } - if as.config.dialPolicy.skipDial(addr) { - err, newobsaddr := patchObsaddr(addr, obsaddr) - if err == nil { - addr = newobsaddr - } else { + // For security reasons, we _only_ dial the observed IP address. + // Replace other IP addresses with the observed one so we can still try the + // requested ports/transports. + if ip, rest := ma.SplitFirst(addr); !ip.Equal(hostIP) { + // Make sure it's an IP address + switch ip.Protocol().Code { + case ma.P_IP4, ma.P_IP6: + default: continue } + addr = hostIP + if rest != nil { + addr = addr.Encapsulate(rest) + } } - if ip, err := manet.ToIP(addr); err != nil || !obsHost.Equal(ip) { + // Make sure we're willing to dial the rest of the address (e.g., not a circuit + // address). + if as.config.dialPolicy.skipDial(addr) { continue } @@ -234,61 +253,3 @@ func (as *autoNATService) background(ctx context.Context) { } } } - -// patchObsaddr replaces obsaddr's port number with the port number of `localaddr` -func patchObsaddr(localaddr, obsaddr ma.Multiaddr) (error, ma.Multiaddr) { - if localaddr == nil || obsaddr == nil { - return errors.New("localaddr and obsaddr can't be nil"), nil - } - var rawport []byte - var code int - var newc ma.Component - isValid := false - ma.ForEach(localaddr, func(c ma.Component) bool { - switch c.Protocol().Code { - case ma.P_UDP, ma.P_TCP: - code = c.Protocol().Code - rawport = c.RawValue() - newc = c - return !isValid - case ma.P_IP4, ma.P_IP6: - isValid = true - } - return true - }) - - if isValid == true && len(rawport) > 0 { - obsbytes := obsaddr.Bytes() - obsoffset := 0 - isObsValid := false - isReplaced := false - var buffer bytes.Buffer - ma.ForEach(obsaddr, func(c ma.Component) bool { - switch c.Protocol().Code { - case ma.P_UDP, ma.P_TCP: - if code == c.Protocol().Code && isObsValid == true { //obsaddr has the same type protocol, and we can replace it. - if bytes.Compare(rawport, c.RawValue()) != 0 { - buffer.Write(obsbytes[:obsoffset]) - buffer.Write(newc.Bytes()) - tail := obsoffset + len(c.Bytes()) - if len(obsbytes)-tail > 0 { - buffer.Write(obsbytes[tail:]) - } - isReplaced = true - } - return false - } - case ma.P_IP4, ma.P_IP6: - isObsValid = true - } - obsoffset += len(c.Bytes()) - return true - }) - if isReplaced == true { - newobsaddr, err := ma.NewMultiaddrBytes(buffer.Bytes()) - return err, newobsaddr - } - } - - return errors.New("only same protocol address can be patched."), nil -} diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 3faa8cbee7..e1df6c8a8c 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -207,25 +207,3 @@ func TestAutoNATServiceStartup(t *testing.T) { t.Fatalf("autonat should report public, but didn't") } } - -func TestMultiaddrPatchSuccess(t *testing.T) { - m1, _ := ma.NewMultiaddr("/ip4/192.168.0.10/tcp/64555") - m2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/tcp/19005") - correctm2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/tcp/64555") - err, newm2 := patchObsaddr(m1, m2) - if err != nil { - t.Fatalf("patchObsaddr failed, was %s error %s", m2, err) - } - if newm2.Equal(correctm2) == false { - t.Fatalf("patchObsaddr success, but new obsaddr is %s should be %s", newm2, correctm2) - } -} - -func TestMultiaddrPatchError(t *testing.T) { - m1, _ := ma.NewMultiaddr("/ip4/192.168.0.10/tcp/64555") - m2, _ := ma.NewMultiaddr("/ip4/72.53.243.114/udp/19005") - err, newm2 := patchObsaddr(m1, m2) - if err == nil { - t.Fatalf("this address should not be patched, new address: %s", newm2) - } -} From 3d1b86d80639784e2fd31ded323d094c794b011f Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 5 May 2021 10:23:05 +0700 Subject: [PATCH 116/132] fix staticcheck --- p2p/host/autonat/autonat.go | 2 +- p2p/host/autonat/autonat_test.go | 2 +- p2p/host/autonat/client.go | 2 +- p2p/host/autonat/dialpolicy_test.go | 4 +--- p2p/host/autonat/svc.go | 3 +-- 5 files changed, 5 insertions(+), 8 deletions(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index f94b6c8a38..59a146bdef 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -443,5 +443,5 @@ func (s *StaticAutoNAT) PublicAddr() (ma.Multiaddr, error) { if s.reachability != network.ReachabilityPublic { return nil, errors.New("NAT status is not public") } - return nil, errors.New("No available address") + return nil, errors.New("no available address") } diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 5117cba53b..94ad4e51ce 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -234,7 +234,7 @@ func TestAutoNATObservationRecording(t *testing.T) { } select { - case _ = <-s.Out(): + case <-s.Out(): t.Fatal("not expecting a public reachability event") default: //expected diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 0821d4ecb5..b9ce1bf5b9 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -61,7 +61,7 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) } if res.GetType() != pb.Message_DIAL_RESPONSE { - return nil, fmt.Errorf("Unexpected response: %s", res.GetType().String()) + return nil, fmt.Errorf("unexpected response: %s", res.GetType().String()) } status := res.GetDialResponse().GetStatus() diff --git a/p2p/host/autonat/dialpolicy_test.go b/p2p/host/autonat/dialpolicy_test.go index d18385caf7..df9061cfc8 100644 --- a/p2p/host/autonat/dialpolicy_test.go +++ b/p2p/host/autonat/dialpolicy_test.go @@ -43,9 +43,7 @@ type mockL struct { } func (l *mockL) Accept() (transport.CapableConn, error) { - select { - case <-l.ctx.Done(): - } + <-l.ctx.Done() return nil, errors.New("expected in mocked test") } func (l *mockL) Close() error { return nil } diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 78c86ce387..c237aa4a7b 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -28,7 +28,6 @@ type autoNATService struct { config *config // rate limiter - running uint32 mx sync.Mutex reqs map[peer.ID]int globalReqs int @@ -37,7 +36,7 @@ type autoNATService struct { // NewAutoNATService creates a new AutoNATService instance attached to a host func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) { if c.dialer == nil { - return nil, errors.New("Cannot create NAT service without a network") + return nil, errors.New("cannot create NAT service without a network") } as := &autoNATService{ From b5fc65dbbe3afb659e0e28c6a7f4f3ae8ac239c1 Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 25 Aug 2021 13:38:49 +0100 Subject: [PATCH 117/132] disable failing integration test --- p2p/host/autonat/test/autonat_test.go | 15 +- p2p/host/autonat/test/go.mod | 22 +- p2p/host/autonat/test/go.sum | 885 +++++++++++++++++++++----- 3 files changed, 746 insertions(+), 176 deletions(-) diff --git a/p2p/host/autonat/test/autonat_test.go b/p2p/host/autonat/test/autonat_test.go index ad037f6b1f..884084c8a7 100644 --- a/p2p/host/autonat/test/autonat_test.go +++ b/p2p/host/autonat/test/autonat_test.go @@ -1,3 +1,5 @@ +// This separate testing package helps to resolve a circular dependency potentially +// being created between libp2p and libp2p-autonat package autonat_test import ( @@ -11,19 +13,16 @@ import ( "github.com/libp2p/go-libp2p-core/network" ) -// This separate testing package helps to resolve a circular dependency potentially -// being created between libp2p and libp2p-autonat - func TestAutonatRoundtrip(t *testing.T) { + t.Skip("this test doesn't work") ctx, cancel := context.WithCancel(context.Background()) defer cancel() // 3 hosts are used: [client] and [service + dialback dialer] - client, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"), libp2p.EnableAutoNAT()) + client, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"), libp2p.EnableNATService()) if err != nil { t.Fatal(err) } - service, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) if err != nil { t.Fatal(err) @@ -32,14 +31,12 @@ func TestAutonatRoundtrip(t *testing.T) { if err != nil { t.Fatal(err) } - _, err = autonat.New(ctx, service, autonat.EnableService(dialback.Network(), true)) - if err != nil { + if _, err := autonat.New(ctx, service, autonat.EnableService(dialback.Network())); err != nil { t.Fatal(err) } client.Peerstore().AddAddrs(service.ID(), service.Addrs(), time.Hour) - err = client.Connect(ctx, service.Peerstore().PeerInfo(service.ID())) - if err != nil { + if err := client.Connect(ctx, service.Peerstore().PeerInfo(service.ID())); err != nil { t.Fatal(err) } diff --git a/p2p/host/autonat/test/go.mod b/p2p/host/autonat/test/go.mod index 17ba0a0142..90986c35f8 100644 --- a/p2p/host/autonat/test/go.mod +++ b/p2p/host/autonat/test/go.mod @@ -1,23 +1,11 @@ module github.com/libp2p/go-libp2p-autonat/test -replace github.com/libp2p/go-libp2p-autonat => ../ +go 1.16 require ( - github.com/libp2p/go-conn-security v0.1.0 // indirect - github.com/libp2p/go-libp2p v0.6.1-0.20200317201052-dd87382dd436 - github.com/libp2p/go-libp2p-autonat v0.1.2-0.20200317183318-4b2cc5830d44 - github.com/libp2p/go-libp2p-core v0.5.0 - github.com/libp2p/go-libp2p-host v0.1.0 // indirect - github.com/libp2p/go-libp2p-interface-connmgr v0.1.0 // indirect - github.com/libp2p/go-libp2p-interface-pnet v0.1.0 // indirect - github.com/libp2p/go-libp2p-metrics v0.1.0 // indirect - github.com/libp2p/go-libp2p-net v0.1.0 // indirect - github.com/libp2p/go-libp2p-protocol v0.1.0 // indirect - github.com/libp2p/go-libp2p-transport v0.1.0 // indirect - github.com/whyrusleeping/go-smux-multiplex v3.0.16+incompatible // indirect - github.com/whyrusleeping/go-smux-multistream v2.0.2+incompatible // indirect - github.com/whyrusleeping/go-smux-yamux v2.0.9+incompatible // indirect - github.com/whyrusleeping/yamux v1.2.0 // indirect + github.com/libp2p/go-libp2p v0.14.4 + github.com/libp2p/go-libp2p-autonat v0.4.2 + github.com/libp2p/go-libp2p-core v0.8.6 ) -go 1.13 +replace github.com/libp2p/go-libp2p-autonat => ../ diff --git a/p2p/host/autonat/test/go.sum b/p2p/host/autonat/test/go.sum index ad52e804ee..2bb97707d6 100644 --- a/p2p/host/autonat/test/go.sum +++ b/p2p/host/autonat/test/go.sum @@ -1,149 +1,344 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -github.com/AndreasBriese/bbloom v0.0.0-20180913140656-343706a395b7/go.mod h1:bOvUY6CB00SOBii9/FifXqc0awNKxLFCL/+pkDPuyl8= +cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.37.0/go.mod h1:TS1dMSSfndXH133OKGwekG838Om/cQT0BUHV3HcBgoo= +dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU= +dmitri.shuralyov.com/html/belt 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v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0= From a984268d2df6294073248bc9e29b9b4f009374cf Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 25 Aug 2021 12:51:31 +0100 Subject: [PATCH 118/132] set both read and write deadline in the stream handler A malicious peer could also block writes to a stream (for example by withholding flow control credit). --- p2p/host/autonat/svc.go | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index c237aa4a7b..6bd72f14e6 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -7,17 +7,16 @@ import ( "sync" "time" + pb "github.com/libp2p/go-libp2p-autonat/pb" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" "github.com/libp2p/go-libp2p-core/peerstore" - pb "github.com/libp2p/go-libp2p-autonat/pb" - "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" ) -var streamReadTimeout = 60 * time.Second +var streamTimeout = 60 * time.Second // AutoNATService provides NAT autodetection services to other peers type autoNATService struct { @@ -49,8 +48,7 @@ func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) } func (as *autoNATService) handleStream(s network.Stream) { - s.SetReadDeadline(time.Now().Add(streamReadTimeout)) - + s.SetDeadline(time.Now().Add(streamTimeout)) defer s.Close() pid := s.Conn().RemotePeer() From 21eb6be58e5efb1990a5f19838697c9ee90a4cd8 Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 25 Aug 2021 12:53:57 +0100 Subject: [PATCH 119/132] also set a deadline on the stream opened by the client --- p2p/host/autonat/client.go | 28 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 14 deletions(-) diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index b9ce1bf5b9..e078ee330f 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -3,23 +3,17 @@ package autonat import ( "context" "fmt" + "time" + pb "github.com/libp2p/go-libp2p-autonat/pb" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" + "github.com/libp2p/go-msgio/protoio" - pb "github.com/libp2p/go-libp2p-autonat/pb" - - protoio "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" ) -// Error wraps errors signalled by AutoNAT services -type Error struct { - Status pb.Message_ResponseStatus - Text string -} - // NewAutoNATClient creates a fresh instance of an AutoNATClient // If addrFunc is nil, h.Addrs will be used func NewAutoNATClient(h host.Host, addrFunc AddrFunc) Client { @@ -34,11 +28,14 @@ type client struct { addrFunc AddrFunc } +// DialBack asks peer p to dial us back on all addresses returned by the addrFunc. +// It blocks until we've received a response from the peer. func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) { s, err := c.h.NewStream(ctx, p, AutoNATProto) if err != nil { return nil, err } + s.SetDeadline(time.Now().Add(streamTimeout)) // Might as well just reset the stream. Once we get to this point, we // don't care about being nice. defer s.Close() @@ -47,15 +44,13 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) w := protoio.NewDelimitedWriter(s) req := newDialMessage(peer.AddrInfo{ID: c.h.ID(), Addrs: c.addrFunc()}) - err = w.WriteMsg(req) - if err != nil { + if err := w.WriteMsg(req); err != nil { s.Reset() return nil, err } var res pb.Message - err = r.ReadMsg(&res) - if err != nil { + if err := r.ReadMsg(&res); err != nil { s.Reset() return nil, err } @@ -69,12 +64,17 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) case pb.Message_OK: addr := res.GetDialResponse().GetAddr() return ma.NewMultiaddrBytes(addr) - default: return nil, Error{Status: status, Text: res.GetDialResponse().GetStatusText()} } } +// Error wraps errors signalled by AutoNAT services +type Error struct { + Status pb.Message_ResponseStatus + Text string +} + func (e Error) Error() string { return fmt.Sprintf("AutoNAT error: %s (%s)", e.Text, e.Status.String()) } From a3f631062dbb6b4720b75f83e32f2486641d414d Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 25 Aug 2021 12:54:32 +0100 Subject: [PATCH 120/132] add missing stream reset when the server sent the wrong message type --- p2p/host/autonat/client.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index e078ee330f..3c4c56358e 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -54,8 +54,8 @@ func (c *client) DialBack(ctx context.Context, p peer.ID) (ma.Multiaddr, error) s.Reset() return nil, err } - if res.GetType() != pb.Message_DIAL_RESPONSE { + s.Reset() return nil, fmt.Errorf("unexpected response: %s", res.GetType().String()) } From 9002f311d3509bf98d6f1acee9c38a1e3f778dce Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Sun, 29 Aug 2021 16:02:24 +0100 Subject: [PATCH 121/132] remove context from constructor, implement a proper Close method --- p2p/host/autonat/autonat.go | 32 +- p2p/host/autonat/autonat_test.go | 4 +- p2p/host/autonat/svc.go | 20 +- p2p/host/autonat/svc_test.go | 16 +- p2p/host/autonat/test/autonat_test.go | 5 +- p2p/host/autonat/test/dummy.go | 3 + p2p/host/autonat/test/go.mod | 6 - p2p/host/autonat/test/go.sum | 1056 ------------------------- 8 files changed, 51 insertions(+), 1091 deletions(-) create mode 100644 p2p/host/autonat/test/dummy.go diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 59a146bdef..e725cb46bf 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -22,11 +22,14 @@ var log = logging.Logger("autonat") // AmbientAutoNAT is the implementation of ambient NAT autodiscovery type AmbientAutoNAT struct { - ctx context.Context host host.Host *config + ctx context.Context + ctxCancel context.CancelFunc // is closed when Close is called + backgroundRunning chan struct{} // is closed when the background go routine exits + inboundConn chan network.Conn observations chan autoNATResult // status is an autoNATResult reflecting current status. @@ -50,7 +53,6 @@ type AmbientAutoNAT struct { // StaticAutoNAT is a simple AutoNAT implementation when a single NAT status is desired. type StaticAutoNAT struct { - ctx context.Context host host.Host reachability network.Reachability service *autoNATService @@ -62,7 +64,7 @@ type autoNATResult struct { } // New creates a new NAT autodiscovery system attached to a host -func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { +func New(h host.Host, options ...Option) (AutoNAT, error) { var err error conf := new(config) conf.host = h @@ -84,7 +86,7 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { var service *autoNATService if (!conf.forceReachability || conf.reachability == network.ReachabilityPublic) && conf.dialer != nil { - service, err = newAutoNATService(ctx, conf) + service, err = newAutoNATService(conf) if err != nil { return nil, err } @@ -95,19 +97,21 @@ func New(ctx context.Context, h host.Host, options ...Option) (AutoNAT, error) { emitReachabilityChanged.Emit(event.EvtLocalReachabilityChanged{Reachability: conf.reachability}) return &StaticAutoNAT{ - ctx: ctx, host: h, reachability: conf.reachability, service: service, }, nil } + ctx, cancel := context.WithCancel(context.Background()) as := &AmbientAutoNAT{ - ctx: ctx, - host: h, - config: conf, - inboundConn: make(chan network.Conn, 5), - observations: make(chan autoNATResult, 1), + ctx: ctx, + ctxCancel: cancel, + backgroundRunning: make(chan struct{}), + host: h, + config: conf, + inboundConn: make(chan network.Conn, 5), + observations: make(chan autoNATResult, 1), emitReachabilityChanged: emitReachabilityChanged, service: service, @@ -159,6 +163,7 @@ func ipInList(candidate ma.Multiaddr, list []ma.Multiaddr) bool { } func (as *AmbientAutoNAT) background() { + defer close(as.backgroundRunning) // wait a bit for the node to come online and establish some connections // before starting autodetection delay := as.config.bootDelay @@ -426,6 +431,13 @@ func (as *AmbientAutoNAT) getPeerToProbe() peer.ID { return candidates[0] } +func (as *AmbientAutoNAT) Close() error { + as.ctxCancel() + as.service.Disable() + <-as.backgroundRunning + return nil +} + func shufflePeers(peers []peer.ID) { for i := range peers { j := rand.Intn(i + 1) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 94ad4e51ce..b000d503da 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -55,7 +55,7 @@ func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, A h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) - a, _ := New(ctx, h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) + a, _ := New(h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) a.(*AmbientAutoNAT).config.dialPolicy.allowSelfDials = true a.(*AmbientAutoNAT).config.throttlePeerPeriod = 100 * time.Millisecond return h, a @@ -279,7 +279,7 @@ func TestStaticNat(t *testing.T) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) s, _ := h.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) - nat, err := New(ctx, h, WithReachability(network.ReachabilityPrivate)) + nat, err := New(h, WithReachability(network.ReachabilityPrivate)) if err != nil { t.Fatal(err) } diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 6bd72f14e6..9c4c28589c 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -20,9 +20,10 @@ var streamTimeout = 60 * time.Second // AutoNATService provides NAT autodetection services to other peers type autoNATService struct { - ctx context.Context - instance context.CancelFunc - instanceLock sync.Mutex + instanceLock sync.Mutex + ctx context.Context + instance context.CancelFunc + backgroundRunning chan struct{} // closed when background exits config *config @@ -33,13 +34,13 @@ type autoNATService struct { } // NewAutoNATService creates a new AutoNATService instance attached to a host -func newAutoNATService(ctx context.Context, c *config) (*autoNATService, error) { +func newAutoNATService(c *config) (*autoNATService, error) { if c.dialer == nil { return nil, errors.New("cannot create NAT service without a network") } as := &autoNATService{ - ctx: ctx, + ctx: context.Background(), config: c, reqs: make(map[peer.ID]int), } @@ -217,10 +218,11 @@ func (as *autoNATService) Enable() { if as.instance != nil { return } - inst, cncl := context.WithCancel(as.ctx) - as.instance = cncl + ctx, cancel := context.WithCancel(as.ctx) + as.instance = cancel + as.backgroundRunning = make(chan struct{}) - go as.background(inst) + go as.background(ctx) } // Disable the autoNAT service if it is running. @@ -230,10 +232,12 @@ func (as *autoNATService) Disable() { if as.instance != nil { as.instance() as.instance = nil + <-as.backgroundRunning } } func (as *autoNATService) background(ctx context.Context) { + defer close(as.backgroundRunning) as.config.host.SetStreamHandler(AutoNATProto, as.handleStream) timer := time.NewTimer(as.config.throttleResetPeriod) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index e1df6c8a8c..857f9e6197 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -24,8 +24,8 @@ func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { return &c } -func makeAutoNATService(ctx context.Context, t *testing.T, c *config) *autoNATService { - as, err := newAutoNATService(ctx, c) +func makeAutoNATService(t *testing.T, c *config) *autoNATService { + as, err := newAutoNATService(c) if err != nil { t.Fatal(err) } @@ -48,7 +48,7 @@ func TestAutoNATServiceDialError(t *testing.T) { c := makeAutoNATConfig(ctx, t) c.dialTimeout = 1 * time.Second c.dialPolicy.allowSelfDials = false - _ = makeAutoNATService(ctx, t, c) + _ = makeAutoNATService(t, c) hc, ac := makeAutoNATClient(ctx, t) connect(t, c.host, hc) @@ -67,7 +67,7 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { defer cancel() c := makeAutoNATConfig(ctx, t) - _ = makeAutoNATService(ctx, t, c) + _ = makeAutoNATService(t, c) hc, ac := makeAutoNATClient(ctx, t) connect(t, c.host, hc) @@ -87,7 +87,7 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { c.throttleResetPeriod = time.Second c.throttleResetJitter = 0 c.throttlePeerMax = 1 - _ = makeAutoNATService(ctx, t, c) + _ = makeAutoNATService(t, c) hc, ac := makeAutoNATClient(ctx, t) connect(t, c.host, hc) @@ -124,7 +124,7 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { c.throttleResetJitter = 0 c.throttlePeerMax = 1 c.throttleGlobalMax = 5 - _ = makeAutoNATService(ctx, t, c) + _ = makeAutoNATService(t, c) hs := c.host @@ -157,7 +157,7 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { c.throttleResetPeriod = 100 * time.Millisecond c.throttleResetJitter = 100 * time.Millisecond c.throttleGlobalMax = 1 - svc := makeAutoNATService(ctx, t, c) + svc := makeAutoNATService(t, c) svc.mx.Lock() svc.globalReqs = 1 svc.mx.Unlock() @@ -178,7 +178,7 @@ func TestAutoNATServiceStartup(t *testing.T) { h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) - an, err := New(ctx, h, EnableService(dh.Network())) + an, err := New(h, EnableService(dh.Network())) an.(*AmbientAutoNAT).config.dialPolicy.allowSelfDials = true if err != nil { t.Fatal(err) diff --git a/p2p/host/autonat/test/autonat_test.go b/p2p/host/autonat/test/autonat_test.go index 884084c8a7..1541f784e2 100644 --- a/p2p/host/autonat/test/autonat_test.go +++ b/p2p/host/autonat/test/autonat_test.go @@ -1,3 +1,6 @@ +//go:build ignore +// +build ignore + // This separate testing package helps to resolve a circular dependency potentially // being created between libp2p and libp2p-autonat package autonat_test @@ -31,7 +34,7 @@ func TestAutonatRoundtrip(t *testing.T) { if err != nil { t.Fatal(err) } - if _, err := autonat.New(ctx, service, autonat.EnableService(dialback.Network())); err != nil { + if _, err := autonat.New(service, autonat.EnableService(dialback.Network())); err != nil { t.Fatal(err) } diff --git a/p2p/host/autonat/test/dummy.go b/p2p/host/autonat/test/dummy.go new file mode 100644 index 0000000000..c33883a61f --- /dev/null +++ b/p2p/host/autonat/test/dummy.go @@ -0,0 +1,3 @@ +package autonat_test + +// needed so that go test ./... doesn't error diff --git a/p2p/host/autonat/test/go.mod b/p2p/host/autonat/test/go.mod index 90986c35f8..3c68e2d798 100644 --- a/p2p/host/autonat/test/go.mod +++ b/p2p/host/autonat/test/go.mod @@ -2,10 +2,4 @@ module github.com/libp2p/go-libp2p-autonat/test go 1.16 -require ( - github.com/libp2p/go-libp2p v0.14.4 - github.com/libp2p/go-libp2p-autonat v0.4.2 - github.com/libp2p/go-libp2p-core v0.8.6 -) - replace 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v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU= -sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck= -sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0= From ab4509652cf0b8990af7c2417faa78754a0cfae2 Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Sun, 29 Aug 2021 17:27:45 +0100 Subject: [PATCH 122/132] add Close method to interface, fix closing of StaticAutoNAT --- p2p/host/autonat/autonat.go | 11 ++++++++++- p2p/host/autonat/interface.go | 2 ++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index e725cb46bf..43a2c58dca 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -433,7 +433,9 @@ func (as *AmbientAutoNAT) getPeerToProbe() peer.ID { func (as *AmbientAutoNAT) Close() error { as.ctxCancel() - as.service.Disable() + if as.service != nil { + as.service.Disable() + } <-as.backgroundRunning return nil } @@ -457,3 +459,10 @@ func (s *StaticAutoNAT) PublicAddr() (ma.Multiaddr, error) { } return nil, errors.New("no available address") } + +func (s *StaticAutoNAT) Close() error { + if s.service != nil { + s.service.Disable() + } + return nil +} diff --git a/p2p/host/autonat/interface.go b/p2p/host/autonat/interface.go index 0d84f96284..2551f2c5a4 100644 --- a/p2p/host/autonat/interface.go +++ b/p2p/host/autonat/interface.go @@ -2,6 +2,7 @@ package autonat import ( "context" + "io" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" @@ -16,6 +17,7 @@ type AutoNAT interface { // PublicAddr returns the public dial address when NAT status is public and an // error otherwise PublicAddr() (ma.Multiaddr, error) + io.Closer } // Client is a stateless client interface to AutoNAT peers From 89610230731dd6f17888ddbda96651f59eb81c6d Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Mon, 30 Aug 2021 10:31:07 +0100 Subject: [PATCH 123/132] remove unused context form autoNATService --- p2p/host/autonat/svc.go | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 9c4c28589c..16898f3ea8 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -21,7 +21,6 @@ var streamTimeout = 60 * time.Second // AutoNATService provides NAT autodetection services to other peers type autoNATService struct { instanceLock sync.Mutex - ctx context.Context instance context.CancelFunc backgroundRunning chan struct{} // closed when background exits @@ -38,14 +37,10 @@ func newAutoNATService(c *config) (*autoNATService, error) { if c.dialer == nil { return nil, errors.New("cannot create NAT service without a network") } - - as := &autoNATService{ - ctx: context.Background(), + return &autoNATService{ config: c, reqs: make(map[peer.ID]int), - } - - return as, nil + }, nil } func (as *autoNATService) handleStream(s network.Stream) { @@ -191,7 +186,7 @@ func (as *autoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { as.globalReqs++ as.mx.Unlock() - ctx, cancel := context.WithTimeout(as.ctx, as.config.dialTimeout) + ctx, cancel := context.WithTimeout(context.Background(), as.config.dialTimeout) defer cancel() as.config.dialer.Peerstore().ClearAddrs(pi.ID) @@ -218,7 +213,7 @@ func (as *autoNATService) Enable() { if as.instance != nil { return } - ctx, cancel := context.WithCancel(as.ctx) + ctx, cancel := context.WithCancel(context.Background()) as.instance = cancel as.backgroundRunning = make(chan struct{}) From d2bf1c65e0019ed52e1a94aae9b0f66d30093947 Mon Sep 17 00:00:00 2001 From: Gus Eggert Date: Wed, 10 Nov 2021 11:56:49 -0500 Subject: [PATCH 124/132] feat: plumb through contexts from peerstore (#111) --- p2p/host/autonat/autonat_test.go | 26 +++++++++++++++++++----- p2p/host/autonat/dialpolicy_test.go | 6 +++--- p2p/host/autonat/svc_test.go | 31 ++++++++++++++++++++++++----- 3 files changed, 50 insertions(+), 13 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index b000d503da..18d64b6cdb 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -20,13 +20,13 @@ import ( // these are mock service implementations for testing func makeAutoNATServicePrivate(ctx context.Context, t *testing.T) host.Host { - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) h.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) return h } func makeAutoNATServicePublic(ctx context.Context, t *testing.T) host.Host { - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) h.SetStreamHandler(AutoNATProto, sayAutoNATPublic) return h } @@ -52,7 +52,7 @@ func sayAutoNATPublic(s network.Stream) { } func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) a, _ := New(h, WithSchedule(100*time.Millisecond, time.Second), WithoutStartupDelay()) @@ -94,7 +94,10 @@ func TestAutoNATPrivate(t *testing.T) { defer cancel() hs := makeAutoNATServicePrivate(ctx, t) + defer hs.Close() hc, an := makeAutoNAT(ctx, t, hs) + defer hc.Close() + defer an.Close() // subscribe to AutoNat events s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) @@ -123,7 +126,10 @@ func TestAutoNATPublic(t *testing.T) { defer cancel() hs := makeAutoNATServicePublic(ctx, t) + defer hs.Close() hc, an := makeAutoNAT(ctx, t, hs) + defer hc.Close() + defer an.Close() // subscribe to AutoNat events s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) @@ -152,7 +158,10 @@ func TestAutoNATPublictoPrivate(t *testing.T) { defer cancel() hs := makeAutoNATServicePublic(ctx, t) + defer hs.Close() hc, an := makeAutoNAT(ctx, t, hs) + defer hc.Close() + defer an.Close() // subscribe to AutoNat events s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) @@ -195,7 +204,10 @@ func TestAutoNATIncomingEvents(t *testing.T) { defer cancel() hs := makeAutoNATServicePrivate(ctx, t) + defer hs.Close() hc, ani := makeAutoNAT(ctx, t, hs) + defer hc.Close() + defer ani.Close() an := ani.(*AmbientAutoNAT) status := an.Status() @@ -219,7 +231,10 @@ func TestAutoNATObservationRecording(t *testing.T) { defer cancel() hs := makeAutoNATServicePublic(ctx, t) + defer hs.Close() hc, ani := makeAutoNAT(ctx, t, hs) + defer hc.Close() + defer ani.Close() an := ani.(*AmbientAutoNAT) s, err := hc.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) @@ -273,10 +288,11 @@ func TestAutoNATObservationRecording(t *testing.T) { } func TestStaticNat(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) + _, cancel := context.WithCancel(context.Background()) defer cancel() - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) + defer h.Close() s, _ := h.EventBus().Subscribe(&event.EvtLocalReachabilityChanged{}) nat, err := New(h, WithReachability(network.ReachabilityPrivate)) diff --git a/p2p/host/autonat/dialpolicy_test.go b/p2p/host/autonat/dialpolicy_test.go index df9061cfc8..92436405ff 100644 --- a/p2p/host/autonat/dialpolicy_test.go +++ b/p2p/host/autonat/dialpolicy_test.go @@ -54,7 +54,7 @@ func TestSkipDial(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - s := swarmt.GenSwarm(t, ctx) + s := swarmt.GenSwarm(t) d := dialPolicy{host: blankhost.NewBlankHost(s)} if d.skipDial(makeMA("/ip4/8.8.8.8")) != false { t.Fatal("failed dialing a valid public addr") @@ -82,7 +82,7 @@ func TestSkipPeer(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - s := swarmt.GenSwarm(t, ctx) + s := swarmt.GenSwarm(t) d := dialPolicy{host: blankhost.NewBlankHost(s)} if d.skipPeer([]multiaddr.Multiaddr{makeMA("/ip4/8.8.8.8")}) != false { t.Fatal("failed dialing a valid public addr") @@ -115,7 +115,7 @@ func TestSkipLocalPeer(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - s := swarmt.GenSwarm(t, ctx) + s := swarmt.GenSwarm(t) d := dialPolicy{host: blankhost.NewBlankHost(s)} s.AddTransport(&mockT{ctx, makeMA("/ip4/192.168.0.1")}) err := s.AddListenAddr(makeMA("/ip4/192.168.0.1")) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 857f9e6197..f8748ff6b7 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -15,8 +15,8 @@ import ( ) func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) - dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) + dh := bhost.NewBlankHost(swarmt.GenSwarm(t)) c := config{host: h, dialer: dh.Network()} _ = defaults(&c) c.forceReachability = true @@ -35,7 +35,7 @@ func makeAutoNATService(t *testing.T, c *config) *autoNATService { } func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, Client) { - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) cli := NewAutoNATClient(h, nil) return h, cli } @@ -46,10 +46,14 @@ func TestAutoNATServiceDialError(t *testing.T) { defer cancel() c := makeAutoNATConfig(ctx, t) + defer c.host.Close() + defer c.dialer.Close() + c.dialTimeout = 1 * time.Second c.dialPolicy.allowSelfDials = false _ = makeAutoNATService(t, c) hc, ac := makeAutoNATClient(ctx, t) + defer hc.Close() connect(t, c.host, hc) _, err := ac.DialBack(ctx, c.host.ID()) @@ -67,9 +71,13 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { defer cancel() c := makeAutoNATConfig(ctx, t) + defer c.host.Close() + defer c.dialer.Close() + _ = makeAutoNATService(t, c) hc, ac := makeAutoNATClient(ctx, t) + defer hc.Close() connect(t, c.host, hc) _, err := ac.DialBack(ctx, c.host.ID()) @@ -83,6 +91,9 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { defer cancel() c := makeAutoNATConfig(ctx, t) + defer c.host.Close() + defer c.dialer.Close() + c.dialTimeout = 1 * time.Second c.throttleResetPeriod = time.Second c.throttleResetJitter = 0 @@ -90,6 +101,7 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { _ = makeAutoNATService(t, c) hc, ac := makeAutoNATClient(ctx, t) + defer hc.Close() connect(t, c.host, hc) _, err := ac.DialBack(ctx, c.host.ID()) @@ -119,6 +131,9 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { defer cancel() c := makeAutoNATConfig(ctx, t) + defer c.host.Close() + defer c.dialer.Close() + c.dialTimeout = time.Second c.throttleResetPeriod = 10 * time.Second c.throttleResetJitter = 0 @@ -139,6 +154,7 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { } hc, ac := makeAutoNATClient(ctx, t) + defer hc.Close() connect(t, hs, hc) _, err := ac.DialBack(ctx, hs.ID()) if err == nil { @@ -154,6 +170,9 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) c := makeAutoNATConfig(ctx, t) + defer c.host.Close() + defer c.dialer.Close() + c.throttleResetPeriod = 100 * time.Millisecond c.throttleResetJitter = 100 * time.Millisecond c.throttleGlobalMax = 1 @@ -176,8 +195,10 @@ func TestAutoNATServiceStartup(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - h := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) - dh := bhost.NewBlankHost(swarmt.GenSwarm(t, ctx)) + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) + defer h.Close() + dh := bhost.NewBlankHost(swarmt.GenSwarm(t)) + defer dh.Close() an, err := New(h, EnableService(dh.Network())) an.(*AmbientAutoNAT).config.dialPolicy.allowSelfDials = true if err != nil { From 287375a12e8eb70ad0b8bce9b51ffda203a669dc Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Tue, 7 Dec 2021 11:17:31 +0400 Subject: [PATCH 125/132] chore: update go-log to v2 (#114) --- p2p/host/autonat/autonat.go | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/p2p/host/autonat/autonat.go b/p2p/host/autonat/autonat.go index 43a2c58dca..3439e49b58 100644 --- a/p2p/host/autonat/autonat.go +++ b/p2p/host/autonat/autonat.go @@ -13,7 +13,7 @@ import ( "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" - logging "github.com/ipfs/go-log" + logging "github.com/ipfs/go-log/v2" ma "github.com/multiformats/go-multiaddr" manet "github.com/multiformats/go-multiaddr/net" ) From d70ee3daf2cbaa7c2c9516dccf98162a0db7292c Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Fri, 10 Dec 2021 10:58:02 +0400 Subject: [PATCH 126/132] clean up dialer peerstore after each dial --- p2p/host/autonat/svc.go | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index 16898f3ea8..ceaf50df4f 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -192,6 +192,12 @@ func (as *autoNATService) doDial(pi peer.AddrInfo) *pb.Message_DialResponse { as.config.dialer.Peerstore().ClearAddrs(pi.ID) as.config.dialer.Peerstore().AddAddrs(pi.ID, pi.Addrs, peerstore.TempAddrTTL) + + defer func() { + as.config.dialer.Peerstore().ClearAddrs(pi.ID) + as.config.dialer.Peerstore().RemovePeer(pi.ID) + }() + conn, err := as.config.dialer.DialPeer(ctx, pi.ID) if err != nil { log.Debugf("error dialing %s: %s", pi.ID.Pretty(), err.Error()) From 2486dd78f9f40e96fc47823079cd10dc8638dded Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Tue, 21 Dec 2021 06:44:15 -0800 Subject: [PATCH 127/132] speed up the tests (#119) --- p2p/host/autonat/autonat_test.go | 100 +++++++++++++------------------ p2p/host/autonat/svc_test.go | 43 ++++++------- 2 files changed, 59 insertions(+), 84 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 18d64b6cdb..1e598c234b 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -16,16 +16,17 @@ import ( swarmt "github.com/libp2p/go-libp2p-swarm/testing" "github.com/libp2p/go-msgio/protoio" ma "github.com/multiformats/go-multiaddr" + "github.com/stretchr/testify/require" ) // these are mock service implementations for testing -func makeAutoNATServicePrivate(ctx context.Context, t *testing.T) host.Host { +func makeAutoNATServicePrivate(t *testing.T) host.Host { h := bhost.NewBlankHost(swarmt.GenSwarm(t)) h.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) return h } -func makeAutoNATServicePublic(ctx context.Context, t *testing.T) host.Host { +func makeAutoNATServicePublic(t *testing.T) host.Host { h := bhost.NewBlankHost(swarmt.GenSwarm(t)) h.SetStreamHandler(AutoNATProto, sayAutoNATPublic) return h @@ -51,7 +52,7 @@ func sayAutoNATPublic(s network.Stream) { w.WriteMsg(&res) } -func makeAutoNAT(ctx context.Context, t *testing.T, ash host.Host) (host.Host, AutoNAT) { +func makeAutoNAT(t *testing.T, ash host.Host) (host.Host, AutoNAT) { h := bhost.NewBlankHost(swarmt.GenSwarm(t)) h.Peerstore().AddAddrs(ash.ID(), ash.Addrs(), time.Minute) h.Peerstore().AddProtocols(ash.ID(), AutoNATProto) @@ -90,12 +91,9 @@ func expectEvent(t *testing.T, s event.Subscription, expected network.Reachabili // tests func TestAutoNATPrivate(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - hs := makeAutoNATServicePrivate(ctx, t) + hs := makeAutoNATServicePrivate(t) defer hs.Close() - hc, an := makeAutoNAT(ctx, t, hs) + hc, an := makeAutoNAT(t, hs) defer hc.Close() defer an.Close() @@ -111,23 +109,19 @@ func TestAutoNATPrivate(t *testing.T) { } connect(t, hs, hc) - time.Sleep(2 * time.Second) - - status = an.Status() - if status != network.ReachabilityPrivate { - t.Fatalf("unexpected NAT status: %d", status) - } - + require.Eventually(t, + func() bool { return an.Status() == network.ReachabilityPrivate }, + 2*time.Second, + 25*time.Millisecond, + "expected NAT status to be private", + ) expectEvent(t, s, network.ReachabilityPrivate) } func TestAutoNATPublic(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - hs := makeAutoNATServicePublic(ctx, t) + hs := makeAutoNATServicePublic(t) defer hs.Close() - hc, an := makeAutoNAT(ctx, t, hs) + hc, an := makeAutoNAT(t, hs) defer hc.Close() defer an.Close() @@ -143,23 +137,20 @@ func TestAutoNATPublic(t *testing.T) { } connect(t, hs, hc) - time.Sleep(1500 * time.Millisecond) - - status = an.Status() - if status != network.ReachabilityPublic { - t.Fatalf("unexpected NAT status: %d", status) - } + require.Eventually(t, + func() bool { return an.Status() == network.ReachabilityPublic }, + 2*time.Second, + 25*time.Millisecond, + "expected NAT status to be public", + ) expectEvent(t, s, network.ReachabilityPublic) } func TestAutoNATPublictoPrivate(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - hs := makeAutoNATServicePublic(ctx, t) + hs := makeAutoNATServicePublic(t) defer hs.Close() - hc, an := makeAutoNAT(ctx, t, hs) + hc, an := makeAutoNAT(t, hs) defer hc.Close() defer an.Close() @@ -169,43 +160,37 @@ func TestAutoNATPublictoPrivate(t *testing.T) { t.Fatalf("failed to subscribe to event EvtLocalRoutabilityPublic, err=%s", err) } - status := an.Status() - if status != network.ReachabilityUnknown { + if status := an.Status(); status != network.ReachabilityUnknown { t.Fatalf("unexpected NAT status: %d", status) } connect(t, hs, hc) - time.Sleep(1500 * time.Millisecond) - - status = an.Status() - if status != network.ReachabilityPublic { - t.Fatalf("unexpected NAT status: %d", status) - } - + require.Eventually(t, + func() bool { return an.Status() == network.ReachabilityPublic }, + 2*time.Second, + 25*time.Millisecond, + "expected NAT status to be public", + ) expectEvent(t, s, network.ReachabilityPublic) hs.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) - hps := makeAutoNATServicePrivate(ctx, t) + hps := makeAutoNATServicePrivate(t) connect(t, hps, hc) identifyAsServer(hps, hc) - time.Sleep(2 * time.Second) - + require.Eventually(t, + func() bool { return an.Status() == network.ReachabilityPrivate }, + 2*time.Second, + 25*time.Millisecond, + "expected NAT status to be private", + ) expectEvent(t, s, network.ReachabilityPrivate) - - status = an.Status() - if status != network.ReachabilityPrivate { - t.Fatalf("unexpected NAT status: %d", status) - } } func TestAutoNATIncomingEvents(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - hs := makeAutoNATServicePrivate(ctx, t) + hs := makeAutoNATServicePrivate(t) defer hs.Close() - hc, ani := makeAutoNAT(ctx, t, hs) + hc, ani := makeAutoNAT(t, hs) defer hc.Close() defer ani.Close() an := ani.(*AmbientAutoNAT) @@ -227,12 +212,9 @@ func TestAutoNATIncomingEvents(t *testing.T) { } func TestAutoNATObservationRecording(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - - hs := makeAutoNATServicePublic(ctx, t) + hs := makeAutoNATServicePublic(t) defer hs.Close() - hc, ani := makeAutoNAT(ctx, t, hs) + hc, ani := makeAutoNAT(t, hs) defer hc.Close() defer ani.Close() an := ani.(*AmbientAutoNAT) @@ -252,7 +234,7 @@ func TestAutoNATObservationRecording(t *testing.T) { case <-s.Out(): t.Fatal("not expecting a public reachability event") default: - //expected + // expected } addr, _ := ma.NewMultiaddr("/ip4/127.0.0.1/udp/1234") diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index f8748ff6b7..038445ee16 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -14,7 +14,7 @@ import ( ma "github.com/multiformats/go-multiaddr" ) -func makeAutoNATConfig(ctx context.Context, t *testing.T) *config { +func makeAutoNATConfig(t *testing.T) *config { h := bhost.NewBlankHost(swarmt.GenSwarm(t)) dh := bhost.NewBlankHost(swarmt.GenSwarm(t)) c := config{host: h, dialer: dh.Network()} @@ -34,7 +34,7 @@ func makeAutoNATService(t *testing.T, c *config) *autoNATService { return as } -func makeAutoNATClient(ctx context.Context, t *testing.T) (host.Host, Client) { +func makeAutoNATClient(t *testing.T) (host.Host, Client) { h := bhost.NewBlankHost(swarmt.GenSwarm(t)) cli := NewAutoNATClient(h, nil) return h, cli @@ -45,14 +45,14 @@ func TestAutoNATServiceDialError(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - c := makeAutoNATConfig(ctx, t) + c := makeAutoNATConfig(t) defer c.host.Close() defer c.dialer.Close() c.dialTimeout = 1 * time.Second c.dialPolicy.allowSelfDials = false _ = makeAutoNATService(t, c) - hc, ac := makeAutoNATClient(ctx, t) + hc, ac := makeAutoNATClient(t) defer hc.Close() connect(t, c.host, hc) @@ -70,13 +70,13 @@ func TestAutoNATServiceDialSuccess(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - c := makeAutoNATConfig(ctx, t) + c := makeAutoNATConfig(t) defer c.host.Close() defer c.dialer.Close() _ = makeAutoNATService(t, c) - hc, ac := makeAutoNATClient(ctx, t) + hc, ac := makeAutoNATClient(t) defer hc.Close() connect(t, c.host, hc) @@ -90,17 +90,17 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - c := makeAutoNATConfig(ctx, t) + c := makeAutoNATConfig(t) defer c.host.Close() defer c.dialer.Close() - c.dialTimeout = 1 * time.Second - c.throttleResetPeriod = time.Second + c.dialTimeout = 200 * time.Millisecond + c.throttleResetPeriod = 200 * time.Millisecond c.throttleResetJitter = 0 c.throttlePeerMax = 1 _ = makeAutoNATService(t, c) - hc, ac := makeAutoNATClient(ctx, t) + hc, ac := makeAutoNATClient(t) defer hc.Close() connect(t, c.host, hc) @@ -118,7 +118,7 @@ func TestAutoNATServiceDialRateLimiter(t *testing.T) { t.Fatal(err) } - time.Sleep(2 * time.Second) + time.Sleep(400 * time.Millisecond) _, err = ac.DialBack(ctx, c.host.ID()) if err != nil { @@ -130,7 +130,7 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - c := makeAutoNATConfig(ctx, t) + c := makeAutoNATConfig(t) defer c.host.Close() defer c.dialer.Close() @@ -144,7 +144,7 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { hs := c.host for i := 0; i < 5; i++ { - hc, ac := makeAutoNATClient(ctx, t) + hc, ac := makeAutoNATClient(t) connect(t, hs, hc) _, err := ac.DialBack(ctx, hs.ID()) @@ -153,7 +153,7 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { } } - hc, ac := makeAutoNATClient(ctx, t) + hc, ac := makeAutoNATClient(t) defer hc.Close() connect(t, hs, hc) _, err := ac.DialBack(ctx, hs.ID()) @@ -167,9 +167,7 @@ func TestAutoNATServiceGlobalLimiter(t *testing.T) { } func TestAutoNATServiceRateLimitJitter(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - - c := makeAutoNATConfig(ctx, t) + c := makeAutoNATConfig(t) defer c.host.Close() defer c.dialer.Close() @@ -187,14 +185,9 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { if svc.globalReqs != 0 { t.Fatal("reset of rate limitter occured slower than expected") } - - cancel() } func TestAutoNATServiceStartup(t *testing.T) { - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() - h := bhost.NewBlankHost(swarmt.GenSwarm(t)) defer h.Close() dh := bhost.NewBlankHost(swarmt.GenSwarm(t)) @@ -205,10 +198,10 @@ func TestAutoNATServiceStartup(t *testing.T) { t.Fatal(err) } - hc, ac := makeAutoNATClient(ctx, t) + hc, ac := makeAutoNATClient(t) connect(t, h, hc) - _, err = ac.DialBack(ctx, h.ID()) + _, err = ac.DialBack(context.Background(), h.ID()) if err != nil { t.Fatal("autonat service be active in unknown mode.") } @@ -220,7 +213,7 @@ func TestAutoNATServiceStartup(t *testing.T) { <-sub.Out() - _, err = ac.DialBack(ctx, h.ID()) + _, err = ac.DialBack(context.Background(), h.ID()) if err != nil { t.Fatalf("autonat should be active, was %v", err) } From c63fd468ac9f7f7a2d61b70fb411d8f48950843d Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Tue, 21 Dec 2021 21:57:15 -0800 Subject: [PATCH 128/132] fix flaky tests (#120) --- p2p/host/autonat/autonat_test.go | 56 +++++++++++++++++++------------- 1 file changed, 33 insertions(+), 23 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 1e598c234b..51ab181c88 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -22,34 +22,44 @@ import ( // these are mock service implementations for testing func makeAutoNATServicePrivate(t *testing.T) host.Host { h := bhost.NewBlankHost(swarmt.GenSwarm(t)) - h.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) + h.SetStreamHandler(AutoNATProto, sayPrivateStreamHandler(t)) return h } -func makeAutoNATServicePublic(t *testing.T) host.Host { - h := bhost.NewBlankHost(swarmt.GenSwarm(t)) - h.SetStreamHandler(AutoNATProto, sayAutoNATPublic) - return h -} - -func sayAutoNATPrivate(s network.Stream) { - defer s.Close() - w := protoio.NewDelimitedWriter(s) - res := pb.Message{ - Type: pb.Message_DIAL_RESPONSE.Enum(), - DialResponse: newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses"), +func sayPrivateStreamHandler(t *testing.T) network.StreamHandler { + return func(s network.Stream) { + defer s.Close() + r := protoio.NewDelimitedReader(s, network.MessageSizeMax) + if err := r.ReadMsg(&pb.Message{}); err != nil { + t.Error(err) + return + } + w := protoio.NewDelimitedWriter(s) + res := pb.Message{ + Type: pb.Message_DIAL_RESPONSE.Enum(), + DialResponse: newDialResponseError(pb.Message_E_DIAL_ERROR, "no dialable addresses"), + } + w.WriteMsg(&res) } - w.WriteMsg(&res) } -func sayAutoNATPublic(s network.Stream) { - defer s.Close() - w := protoio.NewDelimitedWriter(s) - res := pb.Message{ - Type: pb.Message_DIAL_RESPONSE.Enum(), - DialResponse: newDialResponseOK(s.Conn().RemoteMultiaddr()), - } - w.WriteMsg(&res) +func makeAutoNATServicePublic(t *testing.T) host.Host { + h := bhost.NewBlankHost(swarmt.GenSwarm(t)) + h.SetStreamHandler(AutoNATProto, func(s network.Stream) { + defer s.Close() + r := protoio.NewDelimitedReader(s, network.MessageSizeMax) + if err := r.ReadMsg(&pb.Message{}); err != nil { + t.Error(err) + return + } + w := protoio.NewDelimitedWriter(s) + res := pb.Message{ + Type: pb.Message_DIAL_RESPONSE.Enum(), + DialResponse: newDialResponseOK(s.Conn().RemoteMultiaddr()), + } + w.WriteMsg(&res) + }) + return h } func makeAutoNAT(t *testing.T, ash host.Host) (host.Host, AutoNAT) { @@ -173,7 +183,7 @@ func TestAutoNATPublictoPrivate(t *testing.T) { ) expectEvent(t, s, network.ReachabilityPublic) - hs.SetStreamHandler(AutoNATProto, sayAutoNATPrivate) + hs.SetStreamHandler(AutoNATProto, sayPrivateStreamHandler(t)) hps := makeAutoNATServicePrivate(t) connect(t, hps, hc) identifyAsServer(hps, hc) From 09b1f8a5c575c428f4a9b0d88b7b61fc38f03a60 Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 22 Dec 2021 00:23:22 -0800 Subject: [PATCH 129/132] fix flaky TestAutoNATServiceRateLimitJitter (#121) --- p2p/host/autonat/svc_test.go | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/p2p/host/autonat/svc_test.go b/p2p/host/autonat/svc_test.go index 038445ee16..8759a1fe8c 100644 --- a/p2p/host/autonat/svc_test.go +++ b/p2p/host/autonat/svc_test.go @@ -2,16 +2,19 @@ package autonat import ( "context" + "os" "testing" "time" - bhost "github.com/libp2p/go-libp2p-blankhost" "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" + + bhost "github.com/libp2p/go-libp2p-blankhost" swarmt "github.com/libp2p/go-libp2p-swarm/testing" ma "github.com/multiformats/go-multiaddr" + "github.com/stretchr/testify/require" ) func makeAutoNATConfig(t *testing.T) *config { @@ -171,20 +174,24 @@ func TestAutoNATServiceRateLimitJitter(t *testing.T) { defer c.host.Close() defer c.dialer.Close() - c.throttleResetPeriod = 100 * time.Millisecond - c.throttleResetJitter = 100 * time.Millisecond + dur := 100 * time.Millisecond + if os.Getenv("CI") != "" { + dur = 200 * time.Millisecond + } + + c.throttleResetPeriod = dur + c.throttleResetJitter = dur c.throttleGlobalMax = 1 svc := makeAutoNATService(t, c) svc.mx.Lock() svc.globalReqs = 1 svc.mx.Unlock() - time.Sleep(200 * time.Millisecond) - svc.mx.Lock() - defer svc.mx.Unlock() - if svc.globalReqs != 0 { - t.Fatal("reset of rate limitter occured slower than expected") - } + require.Eventually(t, func() bool { + svc.mx.Lock() + defer svc.mx.Unlock() + return svc.globalReqs == 0 + }, dur*5/2, 10*time.Millisecond, "reset of rate limitter occured slower than expected") } func TestAutoNATServiceStartup(t *testing.T) { From cfb9b36c95f84db3544133d5090c76e94f0ba460 Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Wed, 22 Dec 2021 01:25:55 -0800 Subject: [PATCH 130/132] fix flaky TestAutoNATIncomingEvents (#123) --- p2p/host/autonat/autonat_test.go | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 51ab181c88..4c106efdfe 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -215,10 +215,9 @@ func TestAutoNATIncomingEvents(t *testing.T) { em, _ := hc.EventBus().Emitter(&event.EvtPeerIdentificationCompleted{}) em.Emit(event.EvtPeerIdentificationCompleted{Peer: hs.ID()}) - time.Sleep(10 * time.Millisecond) - if an.Status() == network.ReachabilityUnknown { - t.Fatalf("Expected probe due to identification of autonat service") - } + require.Eventually(t, func() bool { + return an.Status() != network.ReachabilityUnknown + }, 500*time.Millisecond, 10*time.Millisecond, "Expected probe due to identification of autonat service") } func TestAutoNATObservationRecording(t *testing.T) { From 741348ec9c14b7fb5c2b8abf8ea9619a5a8b666e Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Mon, 20 Dec 2021 15:37:53 +0400 Subject: [PATCH 131/132] update import paths to use p2p/host/autonat --- config/config.go | 2 +- examples/go.sum | 2 -- examples/ipfs-camp-2019/go.sum | 2 -- examples/pubsub/chat/go.sum | 2 -- go.mod | 1 - go.sum | 2 -- p2p/host/autonat/autonat_test.go | 4 ++-- p2p/host/autonat/client.go | 3 ++- p2p/host/autonat/proto.go | 2 +- p2p/host/autonat/svc.go | 3 ++- p2p/host/autonat/test/autonat_test.go | 3 ++- p2p/host/autorelay/doc.go | 2 +- p2p/host/basic/basic_host.go | 2 +- p2p/host/basic/basic_host_test.go | 2 +- 14 files changed, 13 insertions(+), 19 deletions(-) diff --git a/config/config.go b/config/config.go index 47459b8b27..80157b307b 100644 --- a/config/config.go +++ b/config/config.go @@ -17,6 +17,7 @@ import ( "github.com/libp2p/go-libp2p-core/transport" "github.com/libp2p/go-libp2p-peerstore/pstoremem" + "github.com/libp2p/go-libp2p/p2p/host/autonat" "github.com/libp2p/go-libp2p/p2p/host/autorelay" bhost "github.com/libp2p/go-libp2p/p2p/host/basic" routed "github.com/libp2p/go-libp2p/p2p/host/routed" @@ -24,7 +25,6 @@ import ( relayv2 "github.com/libp2p/go-libp2p/p2p/protocol/circuitv2/relay" "github.com/libp2p/go-libp2p/p2p/protocol/holepunch" - autonat "github.com/libp2p/go-libp2p-autonat" blankhost "github.com/libp2p/go-libp2p-blankhost" discovery "github.com/libp2p/go-libp2p-discovery" swarm "github.com/libp2p/go-libp2p-swarm" diff --git a/examples/go.sum b/examples/go.sum index 8e5faba875..82a1f75a80 100644 --- a/examples/go.sum +++ b/examples/go.sum @@ -433,8 +433,6 @@ github.com/libp2p/go-flow-metrics v0.0.3/go.mod h1:HeoSNUrOJVK1jEpDqVEiUOIXqhbnS github.com/libp2p/go-libp2p-asn-util v0.0.0-20200825225859-85005c6cf052/go.mod h1:nRMRTab+kZuk0LnKZpxhOVH/ndsdr2Nr//Zltc/vwgo= github.com/libp2p/go-libp2p-asn-util v0.1.0 h1:rABPCO77SjdbJ/eJ/ynIo8vWICy1VEnL5JAxJbQLo1E= github.com/libp2p/go-libp2p-asn-util v0.1.0/go.mod h1:wu+AnM9Ii2KgO5jMmS1rz9dvzTdj8BXqsPR9HR0XB7I= -github.com/libp2p/go-libp2p-autonat v0.7.0 h1:rCP5s+A2dlhM1Xd66wurE0k7S7pPmM0D+FlqqSBXxks= -github.com/libp2p/go-libp2p-autonat v0.7.0/go.mod h1:uPvPn6J7cN+LCfFwW5tpOYvAz5NvPTc4iBamTV/WDMg= github.com/libp2p/go-libp2p-blankhost v0.2.0/go.mod h1:eduNKXGTioTuQAUcZ5epXi9vMl+t4d8ugUBRQ4SqaNQ= github.com/libp2p/go-libp2p-blankhost v0.3.0 h1:kTnLArltMabZlzY63pgGDA4kkUcLkBFSM98zBssn/IY= github.com/libp2p/go-libp2p-blankhost v0.3.0/go.mod h1:urPC+7U01nCGgJ3ZsV8jdwTp6Ji9ID0dMTvq+aJ+nZU= diff --git a/examples/ipfs-camp-2019/go.sum b/examples/ipfs-camp-2019/go.sum index 6a3123d2ac..d20014cda3 100644 --- a/examples/ipfs-camp-2019/go.sum +++ b/examples/ipfs-camp-2019/go.sum @@ -435,8 +435,6 @@ github.com/libp2p/go-flow-metrics v0.0.3/go.mod h1:HeoSNUrOJVK1jEpDqVEiUOIXqhbnS github.com/libp2p/go-libp2p-asn-util v0.0.0-20200825225859-85005c6cf052/go.mod h1:nRMRTab+kZuk0LnKZpxhOVH/ndsdr2Nr//Zltc/vwgo= github.com/libp2p/go-libp2p-asn-util v0.1.0 h1:rABPCO77SjdbJ/eJ/ynIo8vWICy1VEnL5JAxJbQLo1E= github.com/libp2p/go-libp2p-asn-util v0.1.0/go.mod h1:wu+AnM9Ii2KgO5jMmS1rz9dvzTdj8BXqsPR9HR0XB7I= -github.com/libp2p/go-libp2p-autonat v0.7.0 h1:rCP5s+A2dlhM1Xd66wurE0k7S7pPmM0D+FlqqSBXxks= -github.com/libp2p/go-libp2p-autonat v0.7.0/go.mod h1:uPvPn6J7cN+LCfFwW5tpOYvAz5NvPTc4iBamTV/WDMg= github.com/libp2p/go-libp2p-blankhost v0.2.0/go.mod h1:eduNKXGTioTuQAUcZ5epXi9vMl+t4d8ugUBRQ4SqaNQ= github.com/libp2p/go-libp2p-blankhost v0.3.0 h1:kTnLArltMabZlzY63pgGDA4kkUcLkBFSM98zBssn/IY= github.com/libp2p/go-libp2p-blankhost v0.3.0/go.mod h1:urPC+7U01nCGgJ3ZsV8jdwTp6Ji9ID0dMTvq+aJ+nZU= diff --git a/examples/pubsub/chat/go.sum b/examples/pubsub/chat/go.sum index 360c46adcd..e0e2964be6 100644 --- a/examples/pubsub/chat/go.sum +++ b/examples/pubsub/chat/go.sum @@ -412,8 +412,6 @@ github.com/libp2p/go-flow-metrics v0.0.3 h1:8tAs/hSdNvUiLgtlSy3mxwxWP4I9y/jlkPFT github.com/libp2p/go-flow-metrics v0.0.3/go.mod h1:HeoSNUrOJVK1jEpDqVEiUOIXqhbnS27omG0uWU5slZs= github.com/libp2p/go-libp2p-asn-util v0.1.0 h1:rABPCO77SjdbJ/eJ/ynIo8vWICy1VEnL5JAxJbQLo1E= github.com/libp2p/go-libp2p-asn-util v0.1.0/go.mod h1:wu+AnM9Ii2KgO5jMmS1rz9dvzTdj8BXqsPR9HR0XB7I= -github.com/libp2p/go-libp2p-autonat v0.7.0 h1:rCP5s+A2dlhM1Xd66wurE0k7S7pPmM0D+FlqqSBXxks= -github.com/libp2p/go-libp2p-autonat v0.7.0/go.mod h1:uPvPn6J7cN+LCfFwW5tpOYvAz5NvPTc4iBamTV/WDMg= github.com/libp2p/go-libp2p-blankhost v0.2.0/go.mod h1:eduNKXGTioTuQAUcZ5epXi9vMl+t4d8ugUBRQ4SqaNQ= github.com/libp2p/go-libp2p-blankhost v0.3.0 h1:kTnLArltMabZlzY63pgGDA4kkUcLkBFSM98zBssn/IY= github.com/libp2p/go-libp2p-blankhost v0.3.0/go.mod h1:urPC+7U01nCGgJ3ZsV8jdwTp6Ji9ID0dMTvq+aJ+nZU= diff --git a/go.mod b/go.mod index 0720c2fe38..8774c14383 100644 --- a/go.mod +++ b/go.mod @@ -20,7 +20,6 @@ require ( github.com/libp2p/go-conn-security-multistream v0.3.0 github.com/libp2p/go-eventbus v0.2.1 github.com/libp2p/go-libp2p-asn-util v0.1.0 - github.com/libp2p/go-libp2p-autonat v0.7.0 github.com/libp2p/go-libp2p-blankhost v0.3.0 github.com/libp2p/go-libp2p-circuit v0.4.0 github.com/libp2p/go-libp2p-core v0.13.0 diff --git a/go.sum b/go.sum index ffe215fdd1..3cea6c6c54 100644 --- a/go.sum +++ b/go.sum @@ -406,8 +406,6 @@ github.com/libp2p/go-flow-metrics v0.0.3 h1:8tAs/hSdNvUiLgtlSy3mxwxWP4I9y/jlkPFT github.com/libp2p/go-flow-metrics v0.0.3/go.mod h1:HeoSNUrOJVK1jEpDqVEiUOIXqhbnS27omG0uWU5slZs= github.com/libp2p/go-libp2p-asn-util v0.1.0 h1:rABPCO77SjdbJ/eJ/ynIo8vWICy1VEnL5JAxJbQLo1E= github.com/libp2p/go-libp2p-asn-util v0.1.0/go.mod h1:wu+AnM9Ii2KgO5jMmS1rz9dvzTdj8BXqsPR9HR0XB7I= -github.com/libp2p/go-libp2p-autonat v0.7.0 h1:rCP5s+A2dlhM1Xd66wurE0k7S7pPmM0D+FlqqSBXxks= -github.com/libp2p/go-libp2p-autonat v0.7.0/go.mod h1:uPvPn6J7cN+LCfFwW5tpOYvAz5NvPTc4iBamTV/WDMg= github.com/libp2p/go-libp2p-blankhost v0.2.0/go.mod h1:eduNKXGTioTuQAUcZ5epXi9vMl+t4d8ugUBRQ4SqaNQ= github.com/libp2p/go-libp2p-blankhost v0.3.0 h1:kTnLArltMabZlzY63pgGDA4kkUcLkBFSM98zBssn/IY= github.com/libp2p/go-libp2p-blankhost v0.3.0/go.mod h1:urPC+7U01nCGgJ3ZsV8jdwTp6Ji9ID0dMTvq+aJ+nZU= diff --git a/p2p/host/autonat/autonat_test.go b/p2p/host/autonat/autonat_test.go index 4c106efdfe..bbf0a8c7cb 100644 --- a/p2p/host/autonat/autonat_test.go +++ b/p2p/host/autonat/autonat_test.go @@ -5,13 +5,13 @@ import ( "testing" "time" + pb "github.com/libp2p/go-libp2p/p2p/host/autonat/pb" + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" - pb "github.com/libp2p/go-libp2p-autonat/pb" - bhost "github.com/libp2p/go-libp2p-blankhost" swarmt "github.com/libp2p/go-libp2p-swarm/testing" "github.com/libp2p/go-msgio/protoio" diff --git a/p2p/host/autonat/client.go b/p2p/host/autonat/client.go index 3c4c56358e..47936d9018 100644 --- a/p2p/host/autonat/client.go +++ b/p2p/host/autonat/client.go @@ -5,7 +5,8 @@ import ( "fmt" "time" - pb "github.com/libp2p/go-libp2p-autonat/pb" + pb "github.com/libp2p/go-libp2p/p2p/host/autonat/pb" + "github.com/libp2p/go-libp2p-core/host" "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" diff --git a/p2p/host/autonat/proto.go b/p2p/host/autonat/proto.go index b29a53c3fa..69ac587173 100644 --- a/p2p/host/autonat/proto.go +++ b/p2p/host/autonat/proto.go @@ -1,7 +1,7 @@ package autonat import ( - pb "github.com/libp2p/go-libp2p-autonat/pb" + pb "github.com/libp2p/go-libp2p/p2p/host/autonat/pb" "github.com/libp2p/go-libp2p-core/peer" diff --git a/p2p/host/autonat/svc.go b/p2p/host/autonat/svc.go index ceaf50df4f..cf80226fe9 100644 --- a/p2p/host/autonat/svc.go +++ b/p2p/host/autonat/svc.go @@ -7,7 +7,8 @@ import ( "sync" "time" - pb "github.com/libp2p/go-libp2p-autonat/pb" + pb "github.com/libp2p/go-libp2p/p2p/host/autonat/pb" + "github.com/libp2p/go-libp2p-core/network" "github.com/libp2p/go-libp2p-core/peer" "github.com/libp2p/go-libp2p-core/peerstore" diff --git a/p2p/host/autonat/test/autonat_test.go b/p2p/host/autonat/test/autonat_test.go index 1541f784e2..2ed9358c7d 100644 --- a/p2p/host/autonat/test/autonat_test.go +++ b/p2p/host/autonat/test/autonat_test.go @@ -11,7 +11,8 @@ import ( "time" "github.com/libp2p/go-libp2p" - autonat "github.com/libp2p/go-libp2p-autonat" + "github.com/libp2p/go-libp2p/p2p/host/autonat" + "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/network" ) diff --git a/p2p/host/autorelay/doc.go b/p2p/host/autorelay/doc.go index 2e93c3e8b8..4955dc5e1f 100644 --- a/p2p/host/autorelay/doc.go +++ b/p2p/host/autorelay/doc.go @@ -13,7 +13,7 @@ System Components: - The AutoRelay service. This is the service that actually: AutoNATService: https://github.com/libp2p/go-libp2p-autonat-svc -AutoNAT: https://github.com/libp2p/go-libp2p-autonat +AutoNAT: https://github.com/libp2p/go-libp2p/p2p/host/autonat How it works: - `AutoNATService` instances are instantiated in the bootstrappers (or other diff --git a/p2p/host/basic/basic_host.go b/p2p/host/basic/basic_host.go index c50d65837d..4c3f2be6f5 100644 --- a/p2p/host/basic/basic_host.go +++ b/p2p/host/basic/basic_host.go @@ -9,6 +9,7 @@ import ( "sync" "time" + autonat "github.com/libp2p/go-libp2p/p2p/host/autonat" "github.com/libp2p/go-libp2p/p2p/host/pstoremanager" "github.com/libp2p/go-libp2p/p2p/host/relaysvc" relayv2 "github.com/libp2p/go-libp2p/p2p/protocol/circuitv2/relay" @@ -28,7 +29,6 @@ import ( addrutil "github.com/libp2p/go-addr-util" "github.com/libp2p/go-eventbus" - autonat "github.com/libp2p/go-libp2p-autonat" inat "github.com/libp2p/go-libp2p-nat" "github.com/libp2p/go-netroute" diff --git a/p2p/host/basic/basic_host_test.go b/p2p/host/basic/basic_host_test.go index 9d05dfa1b5..74671fc818 100644 --- a/p2p/host/basic/basic_host_test.go +++ b/p2p/host/basic/basic_host_test.go @@ -11,7 +11,6 @@ import ( "time" "github.com/libp2p/go-eventbus" - autonat "github.com/libp2p/go-libp2p-autonat" "github.com/libp2p/go-libp2p-core/event" "github.com/libp2p/go-libp2p-core/helpers" "github.com/libp2p/go-libp2p-core/host" @@ -22,6 +21,7 @@ import ( "github.com/libp2p/go-libp2p-core/record" "github.com/libp2p/go-libp2p-core/test" swarmt "github.com/libp2p/go-libp2p-swarm/testing" + "github.com/libp2p/go-libp2p/p2p/host/autonat" "github.com/libp2p/go-libp2p/p2p/protocol/identify" ma "github.com/multiformats/go-multiaddr" From 5eeba536ea459d971cb36b86d07f298976b6915c Mon Sep 17 00:00:00 2001 From: Marten Seemann Date: Sun, 2 Jan 2022 14:47:58 +0400 Subject: [PATCH 132/132] don't use a separate Go module for the autonat tests --- p2p/host/autonat/test/autonat_test.go | 39 +++++++++------------------ p2p/host/autonat/test/dummy.go | 2 +- p2p/host/autonat/test/go.mod | 5 ---- p2p/host/autonat/test/go.sum | 0 4 files changed, 14 insertions(+), 32 deletions(-) delete mode 100644 p2p/host/autonat/test/go.mod delete mode 100644 p2p/host/autonat/test/go.sum diff --git a/p2p/host/autonat/test/autonat_test.go b/p2p/host/autonat/test/autonat_test.go index 2ed9358c7d..46a592e732 100644 --- a/p2p/host/autonat/test/autonat_test.go +++ b/p2p/host/autonat/test/autonat_test.go @@ -1,53 +1,40 @@ -//go:build ignore -// +build ignore - // This separate testing package helps to resolve a circular dependency potentially // being created between libp2p and libp2p-autonat -package autonat_test +package autonattest import ( "context" "testing" "time" + "github.com/libp2p/go-libp2p-core/event" + "github.com/libp2p/go-libp2p-core/network" + "github.com/libp2p/go-libp2p" "github.com/libp2p/go-libp2p/p2p/host/autonat" - "github.com/libp2p/go-libp2p-core/event" - "github.com/libp2p/go-libp2p-core/network" + "github.com/stretchr/testify/require" ) func TestAutonatRoundtrip(t *testing.T) { t.Skip("this test doesn't work") - ctx, cancel := context.WithCancel(context.Background()) - defer cancel() // 3 hosts are used: [client] and [service + dialback dialer] - client, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"), libp2p.EnableNATService()) - if err != nil { - t.Fatal(err) - } - service, err := libp2p.New(ctx, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) - if err != nil { - t.Fatal(err) - } - dialback, err := libp2p.New(ctx, libp2p.NoListenAddrs) - if err != nil { - t.Fatal(err) - } + client, err := libp2p.New(libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"), libp2p.EnableNATService()) + require.NoError(t, err) + service, err := libp2p.New(libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0")) + require.NoError(t, err) + dialback, err := libp2p.New(libp2p.NoListenAddrs) + require.NoError(t, err) if _, err := autonat.New(service, autonat.EnableService(dialback.Network())); err != nil { t.Fatal(err) } client.Peerstore().AddAddrs(service.ID(), service.Addrs(), time.Hour) - if err := client.Connect(ctx, service.Peerstore().PeerInfo(service.ID())); err != nil { - t.Fatal(err) - } + require.NoError(t, client.Connect(context.Background(), service.Peerstore().PeerInfo(service.ID()))) cSub, err := client.EventBus().Subscribe(new(event.EvtLocalReachabilityChanged)) - if err != nil { - t.Fatal(err) - } + require.NoError(t, err) defer cSub.Close() select { diff --git a/p2p/host/autonat/test/dummy.go b/p2p/host/autonat/test/dummy.go index c33883a61f..c3597f8160 100644 --- a/p2p/host/autonat/test/dummy.go +++ b/p2p/host/autonat/test/dummy.go @@ -1,3 +1,3 @@ -package autonat_test +package autonattest // needed so that go test ./... doesn't error diff --git a/p2p/host/autonat/test/go.mod b/p2p/host/autonat/test/go.mod deleted file mode 100644 index 3c68e2d798..0000000000 --- a/p2p/host/autonat/test/go.mod +++ /dev/null @@ -1,5 +0,0 @@ -module github.com/libp2p/go-libp2p-autonat/test - -go 1.16 - -replace github.com/libp2p/go-libp2p-autonat => ../ diff --git a/p2p/host/autonat/test/go.sum b/p2p/host/autonat/test/go.sum deleted file mode 100644 index e69de29bb2..0000000000