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Signed-off-by: Sunjay Bhatia <sunjayb@vmware.com> Signed-off-by: William A Rowe Jr <wrowe@vmware.com>
As recommended in https://github.com/google/googletest/blob/release-1.10.0/googlemock/docs/cook_book.md#old-style-mock_methodn-macros Signed-off-by: Taylor Barrella <tabarr@google.com>
Commit Message: Additional Description: Risk Level: Low Testing: local Docs Changes: Added Release Notes: N/A Signed-off-by: Lizan Zhou <lizan@tetrate.io>
Signed-off-by: Kuat Yessenov <kuat@google.com> Signed-off-by: Kuat Yessenov kuat@google.com Commit Message: expose grpc_stats filter state as string to be used in Wasm ABI; protobuf is too heavy for this purpose. Risk Level: low Testing: unit Docs Changes: none Release Notes: none
Signed-off-by: Sotiris Nanopoulos <sonanopo@microsoft.com>
Signed-off-by: Jennifer Davis <iennae@gmail.com>
This allows you to run `verify_build_configs` and `run_examples` independently, making it easier to verify an added sandbox locally. Signed-off-by: Ryan Northey <ryan@synca.io>
#12778) In the current default, the timeout timer starts when the request is active. If the request is temporary pending due to the circuit breaker, the overall timeout may exceed the time out configured. Currently timeout is handled by setting the RequestOptions on the async client. The async client starts the timeout timer when the request processing starts. When circuit breakers to the ext authz cluster are configured, a request may be temporary in pending state (if the number of active requests is above the circuit breaker threshold). this period of time is not accounted for with the current timer, which can impact over-all latency. Risk Level: Low (opt-in) Testing: Unit tests added Docs Changes: Inline proto docs Release Notes: Release notes added. Signed-off-by: Yuval Kohavi <yuval.kohavi@gmail.com>
…13193) Signed-off-by: Gary Brown <gary@brownuk.com>
…test (#13135) Remove the dependence on the injected_resource build target that can be disabled via the extension system. Signed-off-by: Alex Konradi <akonradi@google.com>
Signed-off-by: Lizan Zhou <lizan@tetrate.io>
Commit Message: This patch lets `httpCall` to return raw data, hence a full response body can be accessed from Lua script. Risk Level: Low Testing: Modify unit test Docs Changes: N/A Release Notes: N/A Fixes #10048 Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
Signed-off-by: Kuat Yessenov <kuat@google.com>
Signed-off-by: Sotiris Nanopoulos <sonanopo@microsoft.com>
Signed-off-by: Gastón Kleiman <gkleiman@lyft.com>
This patch adds `setBytes()` API to the buffer wrapper by making the wrapped buffer to be mutable. This allows rewriting upstream data in the response path. Risk Level: Low Testing: Added unit and integration tests. Docs Changes: Added Release Notes: Added Fixes #5998 Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
This removes unused stats_prefix_ variables. Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
Signed-off-by: Ryan Northey <ryan@synca.io>
To better support migration from v2 type url to v3 type url, we should be able to support a DiscoveryResponse with a v3 resource to a DiscoveryRequest with v2 resource type. This can be achieved by downgrading the type url when subscriber can't be found. Risk Level: Low Testing: Unit/integration tests added. Release Notes: Added. Fixes #10776 Signed-off-by: chaoqinli <chaoqinli@google.com>
expose filter state values to CEL context. This uses string serialization due to better efficiency. Signed-off-by: Kuat Yessenov <kuat@google.com>
Signed-off-by: Ryan Northey <ryan@synca.io>
Commit Message: http: applying route header rules on local replies. Risk Level: Medium (L7 change) Testing: updated integration tests Docs Changes: n/a Release Notes: inline Fixes #4317 Runtime Guard: envoy.reloadable_features.always_apply_route_header_rules Signed-off-by: Alyssa Wilk <alyssar@chromium.org>
This will allow them to create their own counters to expose for monitoring Risk Level: low Testing: unit tests Signed-off-by: Kevin Baichoo <kbaichoo@google.com>
Also, a few fixes in active_quic_listener that were discovered while fixing tests to work with this change. Signed-off-by: Greg Greenway <ggreenway@apple.com>
…#12912) Commit Message: This patch adds the matched policy name in the response code detail for request denied by the RBAC filter. Risk Level: Low Testing: Added e2e tests and also tested manually Docs Changes: Updated Release Notes: Updated Fixes #12873. Signed-off-by: Yangmin Zhu ymzhu@google.com
…13225) Signed-off-by: Dean Liu <dliu@lyft.com>
Additional Description: HTTP3 is not yet supported in production, so added checks so fuzzer wouldn't fuzz configs with HTTP3. Signed-off-by: Zach <zasweq@google.com>
This fixes the docs for REQ command operator usage example in LocalReplyConfig and SubstitutionFormatString protos. $REQ(:path)% is an invalid command operator, it should be %REQ(:path)%. Risk Level: N/A Testing: N/A Docs Changes: This is a docs change. Release Notes: N/A Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
Commit Message: allow overriding coverage threshold Additional Description: allows third party runners (like Envoy Mobile) to set their own coverage thresholds independent of Envoy's threshold. Risk Level: low - nothing changing in the Envoy CI run. Testing: CI, and tested overriding in Envoy Mobile. Signed-off-by: Jose Nino <jnino@lyft.com>
some configs in docs were initially excluded from validation (in #13387) - this PR will remove the exclusions where possible Signed-off-by: Ryan Northey <ryan@synca.io>
This patch makes sure the filter sends exactly only one check request when the buffer is full, while there might be more data to be decoded. Risk Level: Low Testing: Unit test Docs Changes: N/A Release Notes: N/A Fixes #13260 Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
…ter when initialize (#12783) Signed-off-by: Shikugawa <rei@tetrate.io>
Modifies ratelimit filter to be able to use information from the route's filter metadata as one of its actions Signed-off-by: András Czigány <andras.czigany@strivacity.com>
Signed-off-by: Martin Matusiak <numerodix@gmail.com>
The match all filter chain is chosen when no other filter chain matches the request. Signed-off-by: Yuchen Dai <silentdai@gmail.com>
…#13571) A few changes that wrapup #12673. * Python/Go dependencies that aren't part of the Envoy binary build don't make sense to track in repository_locations.bzl, since they have their own language specific metadata (e.g. requirements.txt) or are in many cases transitively implied. * Ensure that the full set of dependencies visible to bazel query is now validated. This requires that we explicitly call out transitive dependencies that are implied by direct dependencies in repository_locations.bzl. A new annotation `implied_untracked_deps` is used. Fixes #12673 Risk level: Low Testing: validate.py. Signed-off-by: Harvey Tuch <htuch@google.com>
…13546) Signed-off-by: Yan Avlasov <yavlasov@google.com>
Signed-off-by: Ryan Northey <ryan@synca.io>
…g to be used (#13393) Signed-off-by: Christoph Pakulski <christoph@tetrate.io>
The PR updates proxy-wasm-cpp-host dependency for enhancing the capability and fixing a bug in WASM extensions. The change consists of three PRs in proxy-wasm-cpp-host: 1. proxy-wasm/proxy-wasm-cpp-host#68 @PiotrSikora 2. proxy-wasm/proxy-wasm-cpp-host#65 @mathetake (me) 3. proxy-wasm/proxy-wasm-cpp-host#64 @mathetake (me) The code change can be found at proxy-wasm/proxy-wasm-cpp-host@49ed20e...c5658d3 . 1 & 2 enhance WASM capability, and 3 fixes a bug in situations where users share vm_id for multiple filters. For details, please take a look at these original PRs. Signed-off-by: mathetake <takeshi@tetrate.io>
Signed-off-by: Asra Ali <asraa@google.com>
This makes sure config tests for oauth2 filter checks fields
validations. This also handles nullptr values for token_secret and
hmac_secret fields due to misconfigurations (for example: token_secret:
{}). Example config in the docs is also updated.
Signed-off-by: Dhi Aurrahman <dio@tetrate.io>
* delay health checks until transport socket secrets are ready. This fixes a sequencing issue that could result in undesirable Envoy bootup times. When active health checks are configured on a cluster using a transport socket that uses SDS to fetch secrets, it was possible for the initial health check to run before secrets are loaded, which results in a failure. The health check would then wait for the no_traffic_interval (default of 60s) before trying again. This commit makes health checks wait until secrets are loaded before starting, implemented by adding support for registering a callback on TransportSocketFactory. SslSocketFactory supports invoking the callback when secrets are loaded, and all other socket types currently invoke the callback immediately, preserving existing behavior. Signed-off-by: Michael Puncel <mpuncel@squareup.com>
Signed-off-by: Yan Avlasov <yavlasov@google.com>
Signed-off-by: Ryan Northey <ryan@synca.io>
Fixes #12335. Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Signed-off-by: Yan Avlasov <yavlasov@google.com>
Signed-off-by: Piotr Sikora <piotrsikora@google.com>
Signed-off-by: Lizan Zhou <lizan@tetrate.io>
Signed-off-by: Jose Nino <jnino@lyft.com>
Signed-off-by: Kuat Yessenov <kuat@google.com>
Fixed divide by zero bug in admission control filter for HTTP. Fixes issues: https://oss-fuzz.com/testcase-detail/5914972389113856 Risk Level: Low Testing: Added regression test Signed-off-by: Zach <zasweq@google.com>
Use abort action as a default if killing is enabled and we're on a supported platform. Risk Level: low Testing: unit tests Docs Changes: Included Release Notes: Included See PR #13208 for context as the reason it's part of core envoy and not an extension. Signed-off-by: Kevin Baichoo <kbaichoo@google.com>
wangfakang
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Sep 15, 2022
…roxy#22689) Commit Message: stream_idle_timer_ is armed to timeout the sending of the bufferred response payload in the quic stream send buffer after the end stream is buffered in the stream. But today this timer is armed even if the the encoding of the payload causes the stream to be closed, in which case the timer can never be cancelled till the stream destruction with ASSERT hit as below: [2022-08-12 22:23:38.843][12][critical][backtrace] [./source/server/backtrace.h:104] Caught Aborted, suspect faulting address 0x50e8d0000000c [2022-08-12 22:23:38.844][12][critical][backtrace] [./source/server/backtrace.h:91] Backtrace (use tools/stack_decode.py to get line numbers): [2022-08-12 22:23:38.844][12][critical][backtrace] [./source/server/backtrace.h:92] Envoy version: 0/1.24.0-dev/test/DEBUG/BoringSSL [2022-08-12 22:23:38.858][12][critical][backtrace] [./source/server/backtrace.h:96] #0: Envoy::SignalAction::sigHandler() [0x3480b28] [2022-08-12 22:23:38.858][12][critical][backtrace] [./source/server/backtrace.h:96] #1: __restore_rt [0x7f94b072c200] [2022-08-12 22:23:38.872][12][critical][backtrace] [./source/server/backtrace.h:96] #2: Envoy::Quic::EnvoyQuicStream::~EnvoyQuicStream() [0x2a2fe98] [2022-08-12 22:23:38.885][12][critical][backtrace] [./source/server/backtrace.h:96] #3: Envoy::Quic::EnvoyQuicServerStream::~EnvoyQuicServerStream() [0x2a78058] [2022-08-12 22:23:38.899][12][critical][backtrace] [./source/server/backtrace.h:96] #4: Envoy::Quic::EnvoyQuicServerStream::~EnvoyQuicServerStream() [0x2a77d30] [2022-08-12 22:23:38.912][12][critical][backtrace] [./source/server/backtrace.h:96] #5: Envoy::Quic::EnvoyQuicServerStream::~EnvoyQuicServerStream() [0x2a77d69] This change check stream close in this case, so that the idle timer will not be armed for closed streams. Risk Level: low Testing: new unit test Docs Changes: N/A Release Notes: N/A Platform Specific Features: N/A Signed-off-by: Dan Zhang <danzh@google.com>
wangfakang
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that referenced
this pull request
Sep 15, 2022
…voyproxy#22856) `//test/integration:tcp_proxy_odcds_integration_test` was observed to fail as follows: ``` ==================== Test output for //test/integration:tcp_proxy_odcds_integration_test: [==========] Running 24 tests from 1 test suite. [----------] Global test environment set-up. [----------] 24 tests from IpVersionsClientType/TcpProxyOdcdsIntegrationTest [ RUN ] IpVersionsClientType/TcpProxyOdcdsIntegrationTest.SingleTcpClient/0 [2022-08-25 20:22:46.750][3969][critical][assert] [test/integration/fake_upstream.cc:832] assert failure: !dispatcher_->isThreadSafe(). [2022-08-25 20:22:46.752][3969][critical][backtrace] [./source/server/backtrace.h:104] Caught Aborted, suspect faulting address 0x6b00000f81 [2022-08-25 20:22:46.752][3969][critical][backtrace] [./source/server/backtrace.h:91] Backtrace (use tools/stack_decode.py to get line numbers): [2022-08-25 20:22:46.752][3969][critical][backtrace] [./source/server/backtrace.h:92] Envoy version: 0/1.24.0-dev/test/DEBUG/BoringSSL [2022-08-25 20:22:46.773][3969][critical][backtrace] [./source/server/backtrace.h:96] #0: Envoy::SignalAction::sigHandler() [0x4c46a78]->[0x2cf2a78] external/com_google_googletest/googlemock/include/gmock/gmock-spec-builders.h:1267 [2022-08-25 20:22:46.773][3969][critical][backtrace] [./source/server/backtrace.h:96] #1: __restore_rt [0x7ffbdaa79420]->[0x7ffbd8b25420] ??:0 [2022-08-25 20:22:46.802][3969][critical][backtrace] [./source/server/backtrace.h:96] #2: Envoy::FakeUpstream::assertPendingConnectionsEmpty() [0x245bf0b]->[0x507f0b] ??:0 [2022-08-25 20:22:46.846][3969][critical][backtrace] [./source/server/backtrace.h:96] #3: Envoy::(anonymous namespace)::TcpProxyOdcdsIntegrationTest_SingleTcpClient_Test::TestBody() [0x1f596cb]->[0x56cb] ??:0 [2022-08-25 20:22:46.877][3969][critical][backtrace] [./source/server/backtrace.h:96] #4: testing::internal::HandleSehExceptionsInMethodIfSupported<>() [0x588b61b]->[0x393761b] ??:0 [2022-08-25 20:22:46.924][3969][critical][backtrace] [./source/server/backtrace.h:96] #5: testing::internal::HandleExceptionsInMethodIfSupported<>() [0x587c2bd]->[0x39282bd] ??:0 [2022-08-25 20:22:46.966][3969][critical][backtrace] [./source/server/backtrace.h:96] #6: testing::Test::Run() [0x5864ba3]->[0x3910ba3] /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_vector.h:0 [2022-08-25 20:22:47.003][3969][critical][backtrace] [./source/server/backtrace.h:96] #7: testing::TestInfo::Run() [0x586576a]->[0x391176a] external/com_google_absl/absl/container/internal/raw_hash_set.h:1259 [2022-08-25 20:22:47.037][3969][critical][backtrace] [./source/server/backtrace.h:96] #8: testing::TestSuite::Run() [0x5865fbb]->[0x3911fbb] /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/stl_algo.h:1925 [2022-08-25 20:22:47.089][3969][critical][backtrace] [./source/server/backtrace.h:96] #9: testing::internal::UnitTestImpl::RunAllTests() [0x5874a28]->[0x3920a28] envoy/registry/registry.h:509 [2022-08-25 20:22:47.114][3969][critical][backtrace] [./source/server/backtrace.h:96] #10: testing::internal::HandleSehExceptionsInMethodIfSupported<>() [0x588ddbb]->[0x3939dbb] envoy/registry/registry.h:0 [2022-08-25 20:22:47.160][3969][critical][backtrace] [./source/server/backtrace.h:96] #11: testing::internal::HandleExceptionsInMethodIfSupported<>() [0x587e683]->[0x392a683] /usr/lib/gcc/x86_64-linux-gnu/9/../../../../include/c++/9/bits/unique_ptr.h:154 [2022-08-25 20:22:47.191][3969][critical][backtrace] [./source/server/backtrace.h:96] #12: testing::UnitTest::Run() [0x5874568]->[0x3920568] envoy/registry/registry.h:508 [2022-08-25 20:22:47.237][3969][critical][backtrace] [./source/server/backtrace.h:96] #13: RUN_ALL_TESTS() [0x4878d51]->[0x2924d51] external/com_google_googletest/googlemock/include/gmock/gmock-spec-builders.h:1203 [2022-08-25 20:22:47.284][3969][critical][backtrace] [./source/server/backtrace.h:96] #14: Envoy::TestRunner::RunTests() [0x48783b1]->[0x29243b1] external/com_google_googletest/googlemock/include/gmock/gmock-actions.h:485 [2022-08-25 20:22:47.316][3969][critical][backtrace] [./source/server/backtrace.h:96] #15: main [0x4874c3a]->[0x2920c3a] external/com_google_googletest/googlemock/include/gmock/gmock-spec-builders.h:1181 [2022-08-25 20:22:47.316][3969][critical][backtrace] [./source/server/backtrace.h:96] #16: __libc_start_main [0x7ffbda897083]->[0x7ffbd8943083] ??:0 ================================================================================ ``` This is due to the race described by envoyproxy#22855. Making sure the dispatcher thread is running before starting the test avoids this problem. Signed-off-by: Benjamin Peterson <benjamin@engflow.com>
hatappi
pushed a commit
to hatappi/envoy-go-extension
that referenced
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Nov 15, 2022
This test sends a large number of metadata frames in order to trigger a disconnect. However, it was possible for the disconnect to happen and the connection to be torn down before all the metadata frames had been sent. If that happened, ASAN detected a UAF:
```
==95==ERROR: AddressSanitizer: heap-use-after-free on address 0x60700037e5a0 at pc 0x000004811f9e bp 0x7ffc903af990 sp 0x7ffc903af988
READ of size 8 at 0x60700037e5a0 thread T0
#0 0x4811f9d in Envoy::IntegrationCodecClient::sendMetadata(Envoy::Http::RequestEncoder&, Envoy::Http::MetadataMap) /proc/self/cwd/test/integration/http_integration.cc:168:3
#1 0x46ed711 in Envoy::Http2FloodMitigationTest_RequestMetadata_Test::TestBody() /proc/self/cwd/test/integration/http2_flood_integration_test.cc:1486:20
wangfakang#2 0xd380e64 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2580:10
wangfakang#3 0xd348dc2 in testing::Test::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2655:5
wangfakang#4 0xd34a927 in testing::TestInfo::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2832:11
wangfakang#5 0xd34ccc4 in testing::TestSuite::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2986:28
wangfakang#6 0xd36f07a in testing::internal::UnitTestImpl::RunAllTests() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5697:44
wangfakang#7 0xd384e63 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/
gtest.cc:2580:10
wangfakang#8 0xd36dd86 in testing::UnitTest::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5280:10
wangfakang#9 0xa0e53a4 in Envoy::TestRunner::RunTests(int, char**) /proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2485:46
wangfakang#10 0xa0e0af7 in main /proc/self/cwd/test/main.cc:34:10
wangfakang#11 0x7f442ef69082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 1878e6b475720c7c51969e69ab2d276fae6d1dee)
wangfakang#12 0x45ed36d in _start (/mnt/ssd/cas/work/1/exec/bazel-out/k8-dbg/bin/test/integration/http2_flood_integration_test.runfiles/envoy/test/integration/http2_flood_integration_test+0x45ed36d)
0x60700037e5a0 is located 48 bytes inside of 80-byte region [0x60700037e570,0x60700037e5c0)
freed by thread T0 here:
#0 0x466f7d2 in free /local/mnt/workspace/bcain_clang_hu-bcain-lv_22036/final/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:52:3
#1 0x831dde8 in Envoy::Http::CodecClient::ActiveRequest::~ActiveRequest() /proc/self/cwd/./source/common/http/codec_client.h:220:10
wangfakang#2 0x5aa33f9 in std::__1::unique_ptr<Envoy::Event::DeferredDeletable, std::__1::default_delete<Envoy::Event::DeferredDeletable> >::reset(Envoy::Event::DeferredDeletable*) /opt/llvm/bin/../include/c++/v1/__memory/unique_ptr.h:54:5
wangfakang#3 0xa3218e8 in Envoy::Event::DispatcherImpl::clearDeferredDeleteList() /proc/self/cwd/source/common/event/dispatcher_impl.cc:142:21
wangfakang#4 0xa3348df in void std::__1::__invoke_void_return_wrapper<void, true>::__call<Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&
, Envoy::Random::RandomGenerator&, Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&
, std::__1::shared_ptr<Envoy::Buffer::WatermarkFactory> const&)::$_2&>(Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&, Envoy::Rand
om::RandomGenerator&, Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&, std::__1::s
hared_ptr<Envoy::Buffer::WatermarkFactory> const&)::$_2&) /proc/self/cwd/source/common/event/dispatcher_impl.cc:79:30
wangfakang#5 0xa334603 in std::__1::__function::__func<Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&, Envoy::Random::RandomGenerator&,
Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&, std::__1::shared_ptr<Envoy::Buffe
r::WatermarkFactory> const&)::$_2, std::__1::allocator<Envoy::Event::DispatcherImpl::DispatcherImpl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, Envoy::Thread::ThreadFactory&, Envoy::TimeSource&, Envoy::Random::RandomGenera
tor&, Envoy::Filesystem::Instance&, Envoy::Event::TimeSystem&, std::__1::function<std::__1::unique_ptr<Envoy::Event::ScaledRangeTimerManager, std::__1::default_delete<Envoy::Event::ScaledRangeTimerManager> > (Envoy::Event::Dispatcher&)> const&, std::__1::shared_ptr<Envoy:
:Buffer::WatermarkFactory> const&)::$_2>, void ()>::operator()() /opt/llvm/bin/../include/c++/v1/__functional/function.h:180:16
wangfakang#6 0x4897039 in std::__1::__function::__value_func<void ()>::operator()() const /opt/llvm/bin/../include/c++/v1/__functional/function.h:507:16
wangfakang#7 0xa8e6aa4 in Envoy::Event::SchedulableCallbackImpl::SchedulableCallbackImpl(Envoy::CSmartPtr<event_base, &(event_base_free)>&, std::__1::function<void ()>)::$_0::__invoke(int, short, void*) /opt/llvm/bin/../include/c++/v1/__functional/function.h:1184:12
wangfakang#8 0xb557c5e in event_process_active_single_queue /mnt/ssd/cas/work/2/exec/external/com_github_libevent_libevent/event.c:1713:4
wangfakang#9 0xb539252 in event_process_active /mnt/ssd/cas/work/2/exec/external/com_github_libevent_libevent/event.c
wangfakang#10 0xb539252 in event_base_loop /mnt/ssd/cas/work/2/exec/external/com_github_libevent_libevent/event.c:2047:12
wangfakang#11 0xa8e1e3c in Envoy::Event::LibeventScheduler::run(Envoy::Event::Dispatcher::RunType) /proc/self/cwd/source/common/event/libevent_scheduler.cc:60:3
wangfakang#12 0xa32bd94 in Envoy::Event::DispatcherImpl::run(Envoy::Event::Dispatcher::RunType) /proc/self/cwd/source/common/event/dispatcher_impl.cc:299:19
wangfakang#13 0x480faad in Envoy::IntegrationCodecClient::flushWrite() /proc/self/cwd/test/integration/http_integration.cc:100:29
wangfakang#14 0x4811e94 in Envoy::IntegrationCodecClient::sendMetadata(Envoy::Http::RequestEncoder&, Envoy::Http::MetadataMap) /proc/self/cwd/test/integration/http_integration.cc:169:3
wangfakang#15 0x46ed711 in Envoy::Http2FloodMitigationTest_RequestMetadata_Test::TestBody() /proc/self/cwd/test/integration/http2_flood_integration_test.cc:1486:20
wangfakang#16 0xd380e64 in void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2580:10
wangfakang#17 0xd348dc2 in testing::Test::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2655:5
wangfakang#18 0xd34a927 in testing::TestInfo::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2832:11
wangfakang#19 0xd34ccc4 in testing::TestSuite::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2986:28
wangfakang#20 0xd36f07a in testing::internal::UnitTestImpl::RunAllTests() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5697:44
wangfakang#21 0xd384e63 in bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*) /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:2580:10
wangfakang#22 0xd36dd86 in testing::UnitTest::Run() /proc/self/cwd/external/com_google_googletest/googletest/src/gtest.cc:5280:10
wangfakang#23 0xa0e53a4 in Envoy::TestRunner::RunTests(int, char**) /proc/self/cwd/external/com_google_googletest/googletest/include/gtest/gtest.h:2485:46
wangfakang#24 0xa0e0af7 in main /proc/self/cwd/test/main.cc:34:10
wangfakang#25 0x7f442ef69082 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24082) (BuildId: 1878e6b475720c7c51969e69ab2d276fae6d1dee)
```
To fix that, write all metadata frames at once.
Signed-off-by: Benjamin Peterson <benjamin@engflow.com>
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