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Resolves: containernetworking#461 Signed-off-by: Paul Greenberg <greenpau@outlook.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| // Copyright 2017 CNI authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "github.com/containernetworking/cni/pkg/skel" | ||
| "github.com/containernetworking/cni/pkg/types/current" | ||
| "github.com/containernetworking/plugins/pkg/ns" | ||
| "github.com/containernetworking/plugins/pkg/testutils" | ||
|
|
||
| "github.com/vishvananda/netlink" | ||
|
|
||
| . "github.com/onsi/ginkgo" | ||
| . "github.com/onsi/gomega" | ||
| ) | ||
|
|
||
| func validateNftRules(bytes []byte) { | ||
| prevResult := getPrevResult(bytes) | ||
|
|
||
| for _, ip := range prevResult.IPs { | ||
| Expect(ip).To(Equal(true)) | ||
| /* | ||
| ipt, err := iptables.NewWithProtocol(protoForIP(ip.Address)) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| // Ensure chains | ||
| chains, err := ipt.ListChains("filter") | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| foundAdmin, foundPriv := findChains(chains) | ||
| Expect(foundAdmin).To(Equal(true)) | ||
| Expect(foundPriv).To(Equal(true)) | ||
| // Look for the FORWARD chain jump rules to our custom chains | ||
| rules, err := ipt.List("filter", "FORWARD") | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| Expect(len(rules)).Should(BeNumerically(">", 1)) | ||
| _, foundPriv = findForwardJumpRules(rules) | ||
| Expect(foundPriv).To(Equal(true)) | ||
| // Look for the allow rules in our custom FORWARD chain | ||
| rules, err = ipt.List("filter", "CNI-FORWARD") | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| Expect(len(rules)).Should(BeNumerically(">", 1)) | ||
| foundAdmin, _ = findForwardJumpRules(rules) | ||
| Expect(foundAdmin).To(Equal(true)) | ||
| // Look for the IP allow rules | ||
| foundOne, foundTwo := findForwardAllowRules(rules, ipString(ip.Address)) | ||
| Expect(foundOne).To(Equal(true)) | ||
| Expect(foundTwo).To(Equal(true)) | ||
| */ | ||
| } | ||
| } | ||
|
|
||
| var _ = Describe("firewall plugin nftables backend v0.4.x", func() { | ||
| var originalNS, targetNS ns.NetNS | ||
| const IFNAME string = "dummy0" | ||
|
|
||
| fullConf := []byte(`{ | ||
| "name": "test", | ||
| "type": "firewall", | ||
| "backend": "nftables", | ||
| "ifName": "dummy0", | ||
| "cniVersion": "0.4.0", | ||
| "prevResult": { | ||
| "interfaces": [ | ||
| {"name": "dummy0"} | ||
| ], | ||
| "ips": [ | ||
| { | ||
| "version": "4", | ||
| "address": "192.168.200.10/24", | ||
| "interface": 0 | ||
| }, | ||
| { | ||
| "version": "6", | ||
| "address": "2001:db8:1:2::1/64", | ||
| "interface": 0 | ||
| } | ||
| ] | ||
| } | ||
| }`) | ||
|
|
||
| BeforeEach(func() { | ||
| // Create a new NetNS so we don't modify the host | ||
| var err error | ||
| originalNS, err = testutils.NewNS() | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| err = originalNS.Do(func(ns.NetNS) error { | ||
| defer GinkgoRecover() | ||
|
|
||
| err = netlink.LinkAdd(&netlink.Dummy{ | ||
| LinkAttrs: netlink.LinkAttrs{ | ||
| Name: IFNAME, | ||
| }, | ||
| }) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| _, err = netlink.LinkByName(IFNAME) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| return nil | ||
| }) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| targetNS, err = testutils.NewNS() | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| }) | ||
|
|
||
| AfterEach(func() { | ||
| Expect(originalNS.Close()).To(Succeed()) | ||
| Expect(targetNS.Close()).To(Succeed()) | ||
| }) | ||
|
|
||
| It("installs nftables rules, Check rules then cleans up on delete using v4.0.x", func() { | ||
| args := &skel.CmdArgs{ | ||
| ContainerID: "dummy", | ||
| Netns: targetNS.Path(), | ||
| IfName: IFNAME, | ||
| StdinData: fullConf, | ||
| } | ||
|
|
||
| err := originalNS.Do(func(ns.NetNS) error { | ||
| defer GinkgoRecover() | ||
|
|
||
| r, _, err := testutils.CmdAddWithArgs(args, func() error { | ||
| return cmdAdd(args) | ||
| }) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| _, err = current.GetResult(r) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
|
|
||
| err = testutils.CmdCheckWithArgs(args, func() error { | ||
| return cmdCheck(args) | ||
| }) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| validateNftRules(fullConf) | ||
|
|
||
| /* | ||
| err = testutils.CmdDelWithArgs(args, func() error { | ||
| return cmdDel(args) | ||
| }) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| validateCleanedUp(fullConf) | ||
| */ | ||
| return nil | ||
| }) | ||
| Expect(err).NotTo(HaveOccurred()) | ||
| }) | ||
| }) |
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