Add m-esr52 at 52.6.0

1 files changed, 1344 insertions, 0 deletions

diff --git a/media/mtransport/test/transport_unittests.cpp b/media/mtransport/test/transport_unittests.cpp
new file mode 100644
index 000000000..b0be39f06
--- /dev/null
+++ b/media/mtransport/test/transport_unittests.cpp
@@ -0,0 +1,1344 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Original author: ekr@rtfm.com
+
+#include <iostream>
+#include <string>
+#include <map>
+#include <algorithm>
+
+#include "mozilla/UniquePtr.h"
+
+#include "sigslot.h"
+
+#include "logging.h"
+#include "nspr.h"
+#include "nss.h"
+#include "ssl.h"
+#include "sslproto.h"
+
+#include "nsThreadUtils.h"
+#include "nsXPCOM.h"
+
+#include "databuffer.h"
+#include "dtlsidentity.h"
+#include "nricectxhandler.h"
+#include "nricemediastream.h"
+#include "transportflow.h"
+#include "transportlayer.h"
+#include "transportlayerdtls.h"
+#include "transportlayerice.h"
+#include "transportlayerlog.h"
+#include "transportlayerloopback.h"
+
+#include "runnable_utils.h"
+
+#define GTEST_HAS_RTTI 0
+#include "gtest/gtest.h"
+#include "gtest_utils.h"
+
+using namespace mozilla;
+MOZ_MTLOG_MODULE("mtransport")
+
+
+const uint8_t kTlsChangeCipherSpecType = 0x14;
+const uint8_t kTlsHandshakeType =        0x16;
+
+const uint8_t kTlsHandshakeCertificate = 0x0b;
+const uint8_t kTlsHandshakeServerKeyExchange = 0x0c;
+
+const uint8_t kTlsFakeChangeCipherSpec[] = {
+  kTlsChangeCipherSpecType,  // Type
+  0xfe, 0xff, // Version
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, // Fictitious sequence #
+  0x00, 0x01, // Length
+  0x01 // Value
+};
+
+// Layer class which can't be initialized.
+class TransportLayerDummy : public TransportLayer {
+ public:
+  TransportLayerDummy(bool allow_init, bool *destroyed)
+      : allow_init_(allow_init),
+        destroyed_(destroyed) {
+    *destroyed_ = false;
+  }
+
+  virtual ~TransportLayerDummy() {
+    *destroyed_ = true;
+  }
+
+  virtual nsresult InitInternal() {
+    return allow_init_ ? NS_OK : NS_ERROR_FAILURE;
+  }
+
+  virtual TransportResult SendPacket(const unsigned char *data, size_t len) {
+    MOZ_CRASH();  // Should never be called.
+    return 0;
+  }
+
+  TRANSPORT_LAYER_ID("lossy")
+
+ private:
+  bool allow_init_;
+  bool *destroyed_;
+};
+
+class Inspector {
+ public:
+  virtual ~Inspector() {}
+
+  virtual void Inspect(TransportLayer* layer,
+                       const unsigned char *data, size_t len) = 0;
+};
+
+// Class to simulate various kinds of network lossage
+class TransportLayerLossy : public TransportLayer {
+ public:
+  TransportLayerLossy() : loss_mask_(0), packet_(0), inspector_(nullptr) {}
+  ~TransportLayerLossy () {}
+
+  virtual TransportResult SendPacket(const unsigned char *data, size_t len) {
+    MOZ_MTLOG(ML_NOTICE, LAYER_INFO << "SendPacket(" << len << ")");
+
+    if (loss_mask_ & (1 << (packet_ % 32))) {
+      MOZ_MTLOG(ML_NOTICE, "Dropping packet");
+      ++packet_;
+      return len;
+    }
+    if (inspector_) {
+      inspector_->Inspect(this, data, len);
+    }
+
+    ++packet_;
+
+    return downward_->SendPacket(data, len);
+  }
+
+  void SetLoss(uint32_t packet) {
+    loss_mask_ |= (1 << (packet & 32));
+  }
+
+  void SetInspector(UniquePtr<Inspector> inspector) {
+    inspector_ = Move(inspector);
+  }
+
+  void StateChange(TransportLayer *layer, State state) {
+    TL_SET_STATE(state);
+  }
+
+  void PacketReceived(TransportLayer *layer, const unsigned char *data,
+                      size_t len) {
+    SignalPacketReceived(this, data, len);
+  }
+
+  TRANSPORT_LAYER_ID("lossy")
+
+ protected:
+  virtual void WasInserted() {
+    downward_->SignalPacketReceived.
+        connect(this,
+                &TransportLayerLossy::PacketReceived);
+    downward_->SignalStateChange.
+        connect(this,
+                &TransportLayerLossy::StateChange);
+
+    TL_SET_STATE(downward_->state());
+  }
+
+ private:
+  uint32_t loss_mask_;
+  uint32_t packet_;
+  UniquePtr<Inspector> inspector_;
+};
+
+// Process DTLS Records
+#define CHECK_LENGTH(expected) \
+  do { \
+    EXPECT_GE(remaining(), expected); \
+    if (remaining() < expected) return false; \
+  } while(0)
+
+class TlsParser {
+ public:
+  TlsParser(const unsigned char *data, size_t len)
+      : buffer_(data, len), offset_(0) {}
+
+  bool Read(unsigned char* val) {
+    if (remaining() < 1) {
+      return false;
+    }
+    *val = *ptr();
+    consume(1);
+    return true;
+  }
+
+  // Read an integral type of specified width.
+  bool Read(uint32_t *val, size_t len) {
+    if (len > sizeof(uint32_t))
+      return false;
+
+    *val = 0;
+
+    for (size_t i=0; i<len; ++i) {
+      unsigned char tmp;
+
+      if (!Read(&tmp))
+        return false;
+
+      (*val) = ((*val) << 8) + tmp;
+    }
+
+    return true;
+  }
+
+  bool Read(unsigned char* val, size_t len) {
+    if (remaining() < len) {
+      return false;
+    }
+
+    if (val) {
+      memcpy(val, ptr(), len);
+    }
+    consume(len);
+
+    return true;
+  }
+
+ private:
+  size_t remaining() const { return buffer_.len() - offset_; }
+  const uint8_t *ptr() const { return buffer_.data() + offset_; }
+  void consume(size_t len) { offset_ += len; }
+
+  DataBuffer buffer_;
+  size_t offset_;
+};
+
+class DtlsRecordParser {
+ public:
+  DtlsRecordParser(const unsigned char *data, size_t len)
+      : buffer_(data, len), offset_(0) {}
+
+  bool NextRecord(uint8_t* ct, nsAutoPtr<DataBuffer>* buffer) {
+    if (!remaining())
+      return false;
+
+    CHECK_LENGTH(13U);
+    const uint8_t *ctp = reinterpret_cast<const uint8_t *>(ptr());
+    consume(11); // ct + version + length
+
+    const uint16_t *tmp = reinterpret_cast<const uint16_t*>(ptr());
+    size_t length = ntohs(*tmp);
+    consume(2);
+
+    CHECK_LENGTH(length);
+    DataBuffer* db = new DataBuffer(ptr(), length);
+    consume(length);
+
+    *ct = *ctp;
+    *buffer = db;
+
+    return true;
+  }
+
+ private:
+  size_t remaining() const { return buffer_.len() - offset_; }
+  const uint8_t *ptr() const { return buffer_.data() + offset_; }
+  void consume(size_t len) { offset_ += len; }
+
+  DataBuffer buffer_;
+  size_t offset_;
+};
+
+
+// Inspector that parses out DTLS records and passes
+// them on.
+class DtlsRecordInspector : public Inspector {
+ public:
+  virtual void Inspect(TransportLayer* layer,
+                       const unsigned char *data, size_t len) {
+    DtlsRecordParser parser(data, len);
+
+    uint8_t ct;
+    nsAutoPtr<DataBuffer> buf;
+    while(parser.NextRecord(&ct, &buf)) {
+      OnRecord(layer, ct, buf->data(), buf->len());
+    }
+  }
+
+  virtual void OnRecord(TransportLayer* layer,
+                        uint8_t content_type,
+                        const unsigned char *record,
+                        size_t len) = 0;
+};
+
+// Inspector that injects arbitrary packets based on
+// DTLS records of various types.
+class DtlsInspectorInjector : public DtlsRecordInspector {
+ public:
+  DtlsInspectorInjector(uint8_t packet_type, uint8_t handshake_type,
+                    const unsigned char *data, size_t len) :
+      packet_type_(packet_type),
+      handshake_type_(handshake_type),
+      injected_(false) {
+    data_.reset(new unsigned char[len]);
+    memcpy(data_.get(), data, len);
+    len_ = len;
+  }
+
+  virtual void OnRecord(TransportLayer* layer,
+                        uint8_t content_type,
+                        const unsigned char *data, size_t len) {
+    // Only inject once.
+    if (injected_) {
+      return;
+    }
+
+    // Check that the first byte is as requested.
+    if (content_type != packet_type_) {
+      return;
+    }
+
+    if (handshake_type_ != 0xff) {
+      // Check that the packet is plausibly long enough.
+      if (len < 1) {
+        return;
+      }
+
+      // Check that the handshake type is as requested.
+      if (data[0] != handshake_type_) {
+        return;
+      }
+    }
+
+    layer->SendPacket(data_.get(), len_);
+  }
+
+ private:
+  uint8_t packet_type_;
+  uint8_t handshake_type_;
+  bool injected_;
+  UniquePtr<unsigned char[]> data_;
+  size_t len_;
+};
+
+// Make a copy of the first instance of a message.
+class DtlsInspectorRecordHandshakeMessage : public DtlsRecordInspector {
+ public:
+  explicit DtlsInspectorRecordHandshakeMessage(uint8_t handshake_type)
+      : handshake_type_(handshake_type),
+        buffer_() {}
+
+  virtual void OnRecord(TransportLayer* layer,
+                        uint8_t content_type,
+                        const unsigned char *data, size_t len) {
+    // Only do this once.
+    if (buffer_.len()) {
+      return;
+    }
+
+    // Check that the first byte is as requested.
+    if (content_type != kTlsHandshakeType) {
+      return;
+    }
+
+    TlsParser parser(data, len);
+    unsigned char message_type;
+    // Read the handshake message type.
+    if (!parser.Read(&message_type)) {
+      return;
+    }
+    if (message_type != handshake_type_) {
+      return;
+    }
+
+    uint32_t length;
+    if (!parser.Read(&length, 3)) {
+      return;
+    }
+
+    uint32_t message_seq;
+    if (!parser.Read(&message_seq, 2)) {
+      return;
+    }
+
+    uint32_t fragment_offset;
+    if (!parser.Read(&fragment_offset, 3)) {
+      return;
+    }
+
+    uint32_t fragment_length;
+    if (!parser.Read(&fragment_length, 3)) {
+      return;
+    }
+
+    if ((fragment_offset != 0) || (fragment_length != length)) {
+      // This shouldn't happen because all current tests where we
+      // are using this code don't fragment.
+      return;
+    }
+
+    buffer_.Allocate(length);
+    if (!parser.Read(buffer_.data(), length)) {
+      return;
+    }
+  }
+
+  const DataBuffer& buffer() { return buffer_; }
+
+ private:
+  uint8_t handshake_type_;
+  DataBuffer buffer_;
+};
+
+class TlsServerKeyExchangeECDHE {
+ public:
+  bool Parse(const unsigned char* data, size_t len) {
+    TlsParser parser(data, len);
+
+    uint8_t curve_type;
+    if (!parser.Read(&curve_type)) {
+      return false;
+    }
+
+    if (curve_type != 3) {  // named_curve
+      return false;
+    }
+
+    uint32_t named_curve;
+    if (!parser.Read(&named_curve, 2)) {
+      return false;
+    }
+
+    uint32_t point_length;
+    if (!parser.Read(&point_length, 1)) {
+      return false;
+    }
+
+    public_key_.Allocate(point_length);
+    if (!parser.Read(public_key_.data(), point_length)) {
+      return false;
+    }
+
+    return true;
+  }
+
+  DataBuffer public_key_;
+};
+
+namespace {
+class TransportTestPeer : public sigslot::has_slots<> {
+ public:
+  TransportTestPeer(nsCOMPtr<nsIEventTarget> target, std::string name, MtransportTestUtils* utils)
+      : name_(name), target_(target),
+        received_packets_(0),received_bytes_(0),flow_(new TransportFlow(name)),
+        loopback_(new TransportLayerLoopback()),
+        logging_(new TransportLayerLogging()),
+        lossy_(new TransportLayerLossy()),
+        dtls_(new TransportLayerDtls()),
+        identity_(DtlsIdentity::Generate()),
+        ice_ctx_(NrIceCtxHandler::Create(name,
+                                         name == "P2" ?
+                                         TransportLayerDtls::CLIENT :
+                                         TransportLayerDtls::SERVER)),
+        streams_(), candidates_(),
+        peer_(nullptr),
+        gathering_complete_(false),
+        enabled_cipersuites_(),
+        disabled_cipersuites_(),
+        reuse_dhe_key_(false),
+        test_utils_(utils) {
+    std::vector<NrIceStunServer> stun_servers;
+    UniquePtr<NrIceStunServer> server(NrIceStunServer::Create(
+        std::string((char *)"stun.services.mozilla.com"), 3478));
+    stun_servers.push_back(*server);
+    EXPECT_TRUE(NS_SUCCEEDED(ice_ctx_->ctx()->SetStunServers(stun_servers)));
+
+    dtls_->SetIdentity(identity_);
+    dtls_->SetRole(name == "P2" ?
+                   TransportLayerDtls::CLIENT :
+                   TransportLayerDtls::SERVER);
+
+    nsresult res = identity_->ComputeFingerprint("sha-1",
+                                             fingerprint_,
+                                             sizeof(fingerprint_),
+                                             &fingerprint_len_);
+    EXPECT_TRUE(NS_SUCCEEDED(res));
+    EXPECT_EQ(20u, fingerprint_len_);
+  }
+
+  ~TransportTestPeer() {
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnable(this, &TransportTestPeer::DestroyFlow),
+      NS_DISPATCH_SYNC);
+  }
+
+
+  void DestroyFlow() {
+    if (flow_) {
+      loopback_->Disconnect();
+      flow_ = nullptr;
+    }
+    ice_ctx_ = nullptr;
+  }
+
+  void DisconnectDestroyFlow() {
+    loopback_->Disconnect();
+    disconnect_all();  // Disconnect from the signals;
+     flow_ = nullptr;
+  }
+
+  void SetDtlsAllowAll() {
+    nsresult res = dtls_->SetVerificationAllowAll();
+    ASSERT_TRUE(NS_SUCCEEDED(res));
+  }
+
+  void SetAlpn(std::string str, bool withDefault, std::string extra = "") {
+    std::set<std::string> alpn;
+    alpn.insert(str); // the one we want to select
+    if (!extra.empty()) {
+      alpn.insert(extra);
+    }
+    nsresult res = dtls_->SetAlpn(alpn, withDefault ? str : "");
+    ASSERT_EQ(NS_OK, res);
+  }
+
+  const std::string& GetAlpn() const {
+    return dtls_->GetNegotiatedAlpn();
+  }
+
+  void SetDtlsPeer(TransportTestPeer *peer, int digests, unsigned int damage) {
+    unsigned int mask = 1;
+
+    for (int i=0; i<digests; i++) {
+      unsigned char fingerprint_to_set[TransportLayerDtls::kMaxDigestLength];
+
+      memcpy(fingerprint_to_set,
+             peer->fingerprint_,
+             peer->fingerprint_len_);
+      if (damage & mask)
+        fingerprint_to_set[0]++;
+
+      nsresult res = dtls_->SetVerificationDigest(
+          "sha-1",
+          fingerprint_to_set,
+          peer->fingerprint_len_);
+
+      ASSERT_TRUE(NS_SUCCEEDED(res));
+
+      mask <<= 1;
+    }
+  }
+
+  void SetupSrtp() {
+    // this mimics the setup we do elsewhere
+    std::vector<uint16_t> srtp_ciphers;
+    srtp_ciphers.push_back(SRTP_AES128_CM_HMAC_SHA1_80);
+    srtp_ciphers.push_back(SRTP_AES128_CM_HMAC_SHA1_32);
+
+    SetSrtpCiphers(srtp_ciphers);
+ }
+
+  void SetSrtpCiphers(std::vector<uint16_t>& srtp_ciphers) {
+    ASSERT_TRUE(NS_SUCCEEDED(dtls_->SetSrtpCiphers(srtp_ciphers)));
+  }
+
+  void ConnectSocket_s(TransportTestPeer *peer) {
+    nsresult res;
+    res = loopback_->Init();
+    ASSERT_EQ((nsresult)NS_OK, res);
+
+    loopback_->Connect(peer->loopback_);
+
+    ASSERT_EQ((nsresult)NS_OK, flow_->PushLayer(loopback_));
+    ASSERT_EQ((nsresult)NS_OK, flow_->PushLayer(logging_));
+    ASSERT_EQ((nsresult)NS_OK, flow_->PushLayer(lossy_));
+    ASSERT_EQ((nsresult)NS_OK, flow_->PushLayer(dtls_));
+
+    if (dtls_->state() != TransportLayer::TS_ERROR) {
+      // Don't execute these blocks if DTLS didn't initialize.
+      TweakCiphers(dtls_->internal_fd());
+      if (reuse_dhe_key_) {
+        // TransportLayerDtls automatically sets this pref to false
+        // so set it back for test.
+        // This is pretty gross. Dig directly into the NSS FD. The problem
+        // is that we are testing a feature which TransaportLayerDtls doesn't
+        // expose.
+        SECStatus rv = SSL_OptionSet(dtls_->internal_fd(),
+                                     SSL_REUSE_SERVER_ECDHE_KEY, PR_TRUE);
+        ASSERT_EQ(SECSuccess, rv);
+      }
+    }
+
+    flow_->SignalPacketReceived.connect(this, &TransportTestPeer::PacketReceived);
+  }
+
+  void TweakCiphers(PRFileDesc* fd) {
+    for (auto it = enabled_cipersuites_.begin();
+         it != enabled_cipersuites_.end(); ++it) {
+      SSL_CipherPrefSet(fd, *it, PR_TRUE);
+    }
+    for (auto it = disabled_cipersuites_.begin();
+         it != disabled_cipersuites_.end(); ++it) {
+      SSL_CipherPrefSet(fd, *it, PR_FALSE);
+    }
+  }
+
+  void ConnectSocket(TransportTestPeer *peer) {
+    RUN_ON_THREAD(test_utils_->sts_target(),
+                  WrapRunnable(this, & TransportTestPeer::ConnectSocket_s,
+                               peer),
+                  NS_DISPATCH_SYNC);
+  }
+
+  void InitIce() {
+    nsresult res;
+
+    // Attach our slots
+    ice_ctx_->ctx()->SignalGatheringStateChange.
+        connect(this, &TransportTestPeer::GatheringStateChange);
+
+    char name[100];
+    snprintf(name, sizeof(name), "%s:stream%d", name_.c_str(),
+             (int)streams_.size());
+
+    // Create the media stream
+    RefPtr<NrIceMediaStream> stream =
+        ice_ctx_->CreateStream(static_cast<char *>(name), 1);
+
+    ASSERT_TRUE(stream != nullptr);
+    ice_ctx_->ctx()->SetStream(streams_.size(), stream);
+    streams_.push_back(stream);
+
+    // Listen for candidates
+    stream->SignalCandidate.
+        connect(this, &TransportTestPeer::GotCandidate);
+
+    // Create the transport layer
+    ice_ = new TransportLayerIce(name);
+    ice_->SetParameters(ice_ctx_->ctx(), stream, 1);
+
+    // Assemble the stack
+    nsAutoPtr<std::queue<mozilla::TransportLayer *> > layers(
+      new std::queue<mozilla::TransportLayer *>);
+    layers->push(ice_);
+    layers->push(dtls_);
+
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnableRet(&res, flow_, &TransportFlow::PushLayers, layers),
+      NS_DISPATCH_SYNC);
+
+    ASSERT_EQ((nsresult)NS_OK, res);
+
+    // Listen for media events
+    flow_->SignalPacketReceived.connect(this, &TransportTestPeer::PacketReceived);
+    flow_->SignalStateChange.connect(this, &TransportTestPeer::StateChanged);
+
+    // Start gathering
+    test_utils_->sts_target()->Dispatch(
+        WrapRunnableRet(&res,
+                        ice_ctx_->ctx(),
+                        &NrIceCtx::StartGathering,
+                        false,
+                        false),
+        NS_DISPATCH_SYNC);
+    ASSERT_TRUE(NS_SUCCEEDED(res));
+  }
+
+  void ConnectIce(TransportTestPeer *peer) {
+    peer_ = peer;
+
+    // If gathering is already complete, push the candidates over
+    if (gathering_complete_)
+      GatheringComplete();
+  }
+
+  // New candidate
+  void GotCandidate(NrIceMediaStream *stream, const std::string &candidate) {
+    std::cerr << "Got candidate " << candidate << std::endl;
+    candidates_[stream->name()].push_back(candidate);
+  }
+
+  void GatheringStateChange(NrIceCtx* ctx,
+                            NrIceCtx::GatheringState state) {
+    (void)ctx;
+    if (state == NrIceCtx::ICE_CTX_GATHER_COMPLETE) {
+      GatheringComplete();
+    }
+  }
+
+  // Gathering complete, so send our candidates and start
+  // connecting on the other peer.
+  void GatheringComplete() {
+    nsresult res;
+
+    // Don't send to the other side
+    if (!peer_) {
+      gathering_complete_ = true;
+      return;
+    }
+
+    // First send attributes
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnableRet(&res, peer_->ice_ctx_->ctx(),
+                      &NrIceCtx::ParseGlobalAttributes,
+                      ice_ctx_->ctx()->GetGlobalAttributes()),
+      NS_DISPATCH_SYNC);
+    ASSERT_TRUE(NS_SUCCEEDED(res));
+
+    for (size_t i=0; i<streams_.size(); ++i) {
+      test_utils_->sts_target()->Dispatch(
+        WrapRunnableRet(&res, peer_->streams_[i], &NrIceMediaStream::ParseAttributes,
+                        candidates_[streams_[i]->name()]), NS_DISPATCH_SYNC);
+
+      ASSERT_TRUE(NS_SUCCEEDED(res));
+    }
+
+    // Start checks on the other peer.
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnableRet(&res, peer_->ice_ctx_->ctx(), &NrIceCtx::StartChecks),
+      NS_DISPATCH_SYNC);
+    ASSERT_TRUE(NS_SUCCEEDED(res));
+  }
+
+  TransportResult SendPacket(const unsigned char* data, size_t len) {
+    TransportResult ret;
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnableRet(&ret, flow_, &TransportFlow::SendPacket, data, len),
+      NS_DISPATCH_SYNC);
+
+    return ret;
+  }
+
+
+  void StateChanged(TransportFlow *flow, TransportLayer::State state) {
+    if (state == TransportLayer::TS_OPEN) {
+      std::cerr << "Now connected" << std::endl;
+    }
+  }
+
+  void PacketReceived(TransportFlow * flow, const unsigned char* data,
+                      size_t len) {
+    std::cerr << "Received " << len << " bytes" << std::endl;
+    ++received_packets_;
+    received_bytes_ += len;
+  }
+
+  void SetLoss(uint32_t loss) {
+    lossy_->SetLoss(loss);
+  }
+
+  void SetCombinePackets(bool combine) {
+    loopback_->CombinePackets(combine);
+  }
+
+  void SetInspector(UniquePtr<Inspector> inspector) {
+    lossy_->SetInspector(Move(inspector));
+  }
+
+  void SetInspector(Inspector* in) {
+    UniquePtr<Inspector> inspector(in);
+
+    lossy_->SetInspector(Move(inspector));
+  }
+
+  void SetCipherSuiteChanges(const std::vector<uint16_t>& enableThese,
+                             const std::vector<uint16_t>& disableThese) {
+    disabled_cipersuites_ = disableThese;
+    enabled_cipersuites_ = enableThese;
+  }
+
+  void SetReuseECDHEKey() {
+    reuse_dhe_key_ = true;
+  }
+
+  TransportLayer::State state() {
+    TransportLayer::State tstate;
+
+    RUN_ON_THREAD(test_utils_->sts_target(),
+                  WrapRunnableRet(&tstate, flow_, &TransportFlow::state));
+
+    return tstate;
+  }
+
+  bool connected() {
+    return state() == TransportLayer::TS_OPEN;
+  }
+
+  bool failed() {
+    return state() == TransportLayer::TS_ERROR;
+  }
+
+  size_t receivedPackets() { return received_packets_; }
+
+  size_t receivedBytes() { return received_bytes_; }
+
+  uint16_t cipherSuite() const {
+    nsresult rv;
+    uint16_t cipher;
+    RUN_ON_THREAD(test_utils_->sts_target(),
+                  WrapRunnableRet(&rv, dtls_, &TransportLayerDtls::GetCipherSuite,
+                                  &cipher));
+
+    if (NS_FAILED(rv)) {
+      return TLS_NULL_WITH_NULL_NULL; // i.e., not good
+    }
+    return cipher;
+  }
+
+  uint16_t srtpCipher() const {
+    nsresult rv;
+    uint16_t cipher;
+    RUN_ON_THREAD(test_utils_->sts_target(),
+                  WrapRunnableRet(&rv, dtls_, &TransportLayerDtls::GetSrtpCipher,
+                                  &cipher));
+    if (NS_FAILED(rv)) {
+      return 0; // the SRTP equivalent of TLS_NULL_WITH_NULL_NULL
+    }
+    return cipher;
+  }
+
+ private:
+  std::string name_;
+  nsCOMPtr<nsIEventTarget> target_;
+  size_t received_packets_;
+  size_t received_bytes_;
+    RefPtr<TransportFlow> flow_;
+  TransportLayerLoopback *loopback_;
+  TransportLayerLogging *logging_;
+  TransportLayerLossy *lossy_;
+  TransportLayerDtls *dtls_;
+  TransportLayerIce *ice_;
+  RefPtr<DtlsIdentity> identity_;
+  RefPtr<NrIceCtxHandler> ice_ctx_;
+  std::vector<RefPtr<NrIceMediaStream> > streams_;
+  std::map<std::string, std::vector<std::string> > candidates_;
+  TransportTestPeer *peer_;
+  bool gathering_complete_;
+  unsigned char fingerprint_[TransportLayerDtls::kMaxDigestLength];
+  size_t fingerprint_len_;
+  std::vector<uint16_t> enabled_cipersuites_;
+  std::vector<uint16_t> disabled_cipersuites_;
+  bool reuse_dhe_key_;
+  MtransportTestUtils* test_utils_;
+};
+
+
+class TransportTest : public MtransportTest {
+ public:
+  TransportTest() {
+    fds_[0] = nullptr;
+    fds_[1] = nullptr;
+  }
+
+  void TearDown() override {
+    delete p1_;
+    delete p2_;
+
+    //    Can't detach these
+    //    PR_Close(fds_[0]);
+    //    PR_Close(fds_[1]);
+    MtransportTest::TearDown();
+  }
+
+  void DestroyPeerFlows() {
+    p1_->DisconnectDestroyFlow();
+    p2_->DisconnectDestroyFlow();
+  }
+
+  void SetUp() override {
+    MtransportTest::SetUp();
+
+    nsresult rv;
+    target_ = do_GetService(NS_SOCKETTRANSPORTSERVICE_CONTRACTID, &rv);
+    ASSERT_TRUE(NS_SUCCEEDED(rv));
+
+    Reset();
+  }
+
+  void Reset() {
+    p1_ = new TransportTestPeer(target_, "P1", test_utils_);
+    p2_ = new TransportTestPeer(target_, "P2", test_utils_);
+  }
+
+  void SetupSrtp() {
+    p1_->SetupSrtp();
+    p2_->SetupSrtp();
+  }
+
+  void SetDtlsPeer(int digests = 1, unsigned int damage = 0) {
+    p1_->SetDtlsPeer(p2_, digests, damage);
+    p2_->SetDtlsPeer(p1_, digests, damage);
+  }
+
+  void SetDtlsAllowAll() {
+    p1_->SetDtlsAllowAll();
+    p2_->SetDtlsAllowAll();
+  }
+
+  void SetAlpn(std::string first, std::string second,
+               bool withDefaults = true) {
+    if (!first.empty()) {
+      p1_->SetAlpn(first, withDefaults, "bogus");
+    }
+    if (!second.empty()) {
+      p2_->SetAlpn(second, withDefaults);
+    }
+  }
+
+  void CheckAlpn(std::string first, std::string second) {
+    ASSERT_EQ(first, p1_->GetAlpn());
+    ASSERT_EQ(second, p2_->GetAlpn());
+  }
+
+  void ConnectSocket() {
+    ConnectSocketInternal();
+    ASSERT_TRUE_WAIT(p1_->connected(), 10000);
+    ASSERT_TRUE_WAIT(p2_->connected(), 10000);
+
+    ASSERT_EQ(p1_->cipherSuite(), p2_->cipherSuite());
+    ASSERT_EQ(p1_->srtpCipher(), p2_->srtpCipher());
+  }
+
+  void ConnectSocketExpectFail() {
+    ConnectSocketInternal();
+    ASSERT_TRUE_WAIT(p1_->failed(), 10000);
+    ASSERT_TRUE_WAIT(p2_->failed(), 10000);
+  }
+
+  void ConnectSocketExpectState(TransportLayer::State s1,
+                                TransportLayer::State s2) {
+    ConnectSocketInternal();
+    ASSERT_EQ_WAIT(s1, p1_->state(), 10000);
+    ASSERT_EQ_WAIT(s2, p2_->state(), 10000);
+  }
+
+  void InitIce() {
+    p1_->InitIce();
+    p2_->InitIce();
+  }
+
+  void ConnectIce() {
+    p1_->InitIce();
+    p2_->InitIce();
+    p1_->ConnectIce(p2_);
+    p2_->ConnectIce(p1_);
+    ASSERT_TRUE_WAIT(p1_->connected(), 10000);
+    ASSERT_TRUE_WAIT(p2_->connected(), 10000);
+  }
+
+  void TransferTest(size_t count, size_t bytes = 1024) {
+    unsigned char buf[bytes];
+
+    for (size_t i= 0; i<count; ++i) {
+      memset(buf, count & 0xff, sizeof(buf));
+      TransportResult rv = p1_->SendPacket(buf, sizeof(buf));
+      ASSERT_TRUE(rv > 0);
+    }
+
+    std::cerr << "Received == " << p2_->receivedPackets() << " packets" << std::endl;
+    ASSERT_TRUE_WAIT(count == p2_->receivedPackets(), 10000);
+    ASSERT_TRUE((count * sizeof(buf)) == p2_->receivedBytes());
+  }
+
+ protected:
+  void ConnectSocketInternal() {
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnable(p1_, &TransportTestPeer::ConnectSocket, p2_),
+      NS_DISPATCH_SYNC);
+    test_utils_->sts_target()->Dispatch(
+      WrapRunnable(p2_, &TransportTestPeer::ConnectSocket, p1_),
+      NS_DISPATCH_SYNC);
+  }
+
+  PRFileDesc *fds_[2];
+  TransportTestPeer *p1_;
+  TransportTestPeer *p2_;
+  nsCOMPtr<nsIEventTarget> target_;
+};
+
+
+TEST_F(TransportTest, TestNoDtlsVerificationSettings) {
+  ConnectSocketExpectFail();
+}
+
+static void DisableChaCha(TransportTestPeer* peer) {
+  // On ARM, ChaCha20Poly1305 might be preferred; disable it for the tests that
+  // want to check the cipher suite.  It doesn't matter which peer disables the
+  // suite, disabling on either side has the same effect.
+  std::vector<uint16_t> chachaSuites;
+  chachaSuites.push_back(TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256);
+  chachaSuites.push_back(TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256);
+  peer->SetCipherSuiteChanges(std::vector<uint16_t>(), chachaSuites);
+}
+
+TEST_F(TransportTest, TestConnect) {
+  SetDtlsPeer();
+  DisableChaCha(p1_);
+  ConnectSocket();
+
+  // check that we got the right suite
+  ASSERT_EQ(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, p1_->cipherSuite());
+
+  // no SRTP on this one
+  ASSERT_EQ(0, p1_->srtpCipher());
+}
+
+TEST_F(TransportTest, TestConnectSrtp) {
+  SetupSrtp();
+  SetDtlsPeer();
+  DisableChaCha(p2_);
+  ConnectSocket();
+
+  ASSERT_EQ(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, p1_->cipherSuite());
+
+  // SRTP is on
+  ASSERT_EQ(SRTP_AES128_CM_HMAC_SHA1_80, p1_->srtpCipher());
+}
+
+
+TEST_F(TransportTest, TestConnectDestroyFlowsMainThread) {
+  SetDtlsPeer();
+  ConnectSocket();
+  DestroyPeerFlows();
+}
+
+TEST_F(TransportTest, TestConnectAllowAll) {
+  SetDtlsAllowAll();
+  ConnectSocket();
+}
+
+TEST_F(TransportTest, TestConnectAlpn) {
+  SetDtlsPeer();
+  SetAlpn("a", "a");
+  ConnectSocket();
+  CheckAlpn("a", "a");
+}
+
+TEST_F(TransportTest, TestConnectAlpnMismatch) {
+  SetDtlsPeer();
+  SetAlpn("something", "different");
+  ConnectSocketExpectFail();
+}
+
+TEST_F(TransportTest, TestConnectAlpnServerDefault) {
+  SetDtlsPeer();
+  SetAlpn("def", "");
+  // server allows default, client doesn't support
+  ConnectSocket();
+  CheckAlpn("def", "");
+}
+
+TEST_F(TransportTest, TestConnectAlpnClientDefault) {
+  SetDtlsPeer();
+  SetAlpn("", "clientdef");
+  // client allows default, but server will ignore the extension
+  ConnectSocket();
+  CheckAlpn("", "clientdef");
+}
+
+TEST_F(TransportTest, TestConnectClientNoAlpn) {
+  SetDtlsPeer();
+  // Here the server has ALPN, but no default is allowed.
+  // Reminder: p1 == server, p2 == client
+  SetAlpn("server-nodefault", "", false);
+  // The server doesn't see the extension, so negotiates without it.
+  // But then the server is forced to close when it discovers that ALPN wasn't
+  // negotiated; the client sees a close.
+  ConnectSocketExpectState(TransportLayer::TS_ERROR,
+                           TransportLayer::TS_CLOSED);
+}
+
+TEST_F(TransportTest, TestConnectServerNoAlpn) {
+  SetDtlsPeer();
+  SetAlpn("", "client-nodefault", false);
+  // The client aborts; the server doesn't realize this is a problem and just
+  // sees the close.
+  ConnectSocketExpectState(TransportLayer::TS_CLOSED,
+                           TransportLayer::TS_ERROR);
+}
+
+TEST_F(TransportTest, TestConnectNoDigest) {
+  SetDtlsPeer(0, 0);
+
+  ConnectSocketExpectFail();
+}
+
+TEST_F(TransportTest, TestConnectBadDigest) {
+  SetDtlsPeer(1, 1);
+
+  ConnectSocketExpectFail();
+}
+
+TEST_F(TransportTest, TestConnectTwoDigests) {
+  SetDtlsPeer(2, 0);
+
+  ConnectSocket();
+}
+
+TEST_F(TransportTest, TestConnectTwoDigestsFirstBad) {
+  SetDtlsPeer(2, 1);
+
+  ConnectSocket();
+}
+
+TEST_F(TransportTest, TestConnectTwoDigestsSecondBad) {
+  SetDtlsPeer(2, 2);
+
+  ConnectSocket();
+}
+
+TEST_F(TransportTest, TestConnectTwoDigestsBothBad) {
+  SetDtlsPeer(2, 3);
+
+  ConnectSocketExpectFail();
+}
+
+TEST_F(TransportTest, TestConnectInjectCCS) {
+  SetDtlsPeer();
+  p2_->SetInspector(MakeUnique<DtlsInspectorInjector>(
+      kTlsHandshakeType,
+      kTlsHandshakeCertificate,
+      kTlsFakeChangeCipherSpec,
+      sizeof(kTlsFakeChangeCipherSpec)));
+
+  ConnectSocket();
+}
+
+
+TEST_F(TransportTest, TestConnectVerifyNewECDHE) {
+  SetDtlsPeer();
+  DtlsInspectorRecordHandshakeMessage *i1 = new
+    DtlsInspectorRecordHandshakeMessage(kTlsHandshakeServerKeyExchange);
+  p1_->SetInspector(i1);
+  ConnectSocket();
+  TlsServerKeyExchangeECDHE dhe1;
+  ASSERT_TRUE(dhe1.Parse(i1->buffer().data(), i1->buffer().len()));
+
+  Reset();
+  SetDtlsPeer();
+  DtlsInspectorRecordHandshakeMessage *i2 = new
+    DtlsInspectorRecordHandshakeMessage(kTlsHandshakeServerKeyExchange);
+  p1_->SetInspector(i2);
+  ConnectSocket();
+  TlsServerKeyExchangeECDHE dhe2;
+  ASSERT_TRUE(dhe2.Parse(i2->buffer().data(), i2->buffer().len()));
+
+  // Now compare these two to see if they are the same.
+  ASSERT_FALSE((dhe1.public_key_.len() == dhe2.public_key_.len()) &&
+               (!memcmp(dhe1.public_key_.data(), dhe2.public_key_.data(),
+                        dhe1.public_key_.len())));
+}
+
+TEST_F(TransportTest, TestConnectVerifyReusedECDHE) {
+  SetDtlsPeer();
+  DtlsInspectorRecordHandshakeMessage *i1 = new
+    DtlsInspectorRecordHandshakeMessage(kTlsHandshakeServerKeyExchange);
+  p1_->SetInspector(i1);
+  p1_->SetReuseECDHEKey();
+  ConnectSocket();
+  TlsServerKeyExchangeECDHE dhe1;
+  ASSERT_TRUE(dhe1.Parse(i1->buffer().data(), i1->buffer().len()));
+
+  Reset();
+  SetDtlsPeer();
+  DtlsInspectorRecordHandshakeMessage *i2 = new
+    DtlsInspectorRecordHandshakeMessage(kTlsHandshakeServerKeyExchange);
+
+  p1_->SetInspector(i2);
+  p1_->SetReuseECDHEKey();
+
+  ConnectSocket();
+  TlsServerKeyExchangeECDHE dhe2;
+  ASSERT_TRUE(dhe2.Parse(i2->buffer().data(), i2->buffer().len()));
+
+  // Now compare these two to see if they are the same.
+  ASSERT_EQ(dhe1.public_key_.len(), dhe2.public_key_.len());
+  ASSERT_TRUE(!memcmp(dhe1.public_key_.data(), dhe2.public_key_.data(),
+                      dhe1.public_key_.len()));
+}
+
+TEST_F(TransportTest, TestTransfer) {
+  SetDtlsPeer();
+  ConnectSocket();
+  TransferTest(1);
+}
+
+TEST_F(TransportTest, TestTransferMaxSize) {
+  SetDtlsPeer();
+  ConnectSocket();
+  /* transportlayerdtls uses a 9216 bytes buffer - as this test uses the
+   * loopback implementation it does not have to take into account the extra
+   * bytes added by the DTLS layer below. */
+  TransferTest(1, 9216);
+}
+
+TEST_F(TransportTest, TestTransferMultiple) {
+  SetDtlsPeer();
+  ConnectSocket();
+  TransferTest(3);
+}
+
+TEST_F(TransportTest, TestTransferCombinedPackets) {
+  SetDtlsPeer();
+  ConnectSocket();
+  p2_->SetCombinePackets(true);
+  TransferTest(3);
+}
+
+TEST_F(TransportTest, TestConnectLoseFirst) {
+  SetDtlsPeer();
+  p1_->SetLoss(0);
+  ConnectSocket();
+  TransferTest(1);
+}
+
+TEST_F(TransportTest, TestConnectIce) {
+  SetDtlsPeer();
+  ConnectIce();
+}
+
+TEST_F(TransportTest, TestTransferIceMaxSize) {
+  SetDtlsPeer();
+  ConnectIce();
+  /* nICEr and transportlayerdtls both use 9216 bytes buffers. But the DTLS
+   * layer add extra bytes to the packet, which size depends on chosen cipher
+   * etc. Sending more then 9216 bytes works, but on the receiving side the call
+   * to PR_recvfrom() will truncate any packet bigger then nICEr's buffer size
+   * of 9216 bytes, which then results in the DTLS layer discarding the packet.
+   * Therefore we leave some headroom (according to
+   * https://bugzilla.mozilla.org/show_bug.cgi?id=1214269#c29 256 bytes should
+   * be save choice) here for the DTLS bytes to make it safely into the
+   * receiving buffer in nICEr. */
+  TransferTest(1, 8960);
+}
+
+TEST_F(TransportTest, TestTransferIceMultiple) {
+  SetDtlsPeer();
+  ConnectIce();
+  TransferTest(3);
+}
+
+TEST_F(TransportTest, TestTransferIceCombinedPackets) {
+  SetDtlsPeer();
+  ConnectIce();
+  p2_->SetCombinePackets(true);
+  TransferTest(3);
+}
+
+// test the default configuration against a peer that supports only
+// one of the mandatory-to-implement suites, which should succeed
+static void ConfigureOneCipher(TransportTestPeer* peer, uint16_t suite) {
+  std::vector<uint16_t> justOne;
+  justOne.push_back(suite);
+  std::vector<uint16_t> everythingElse(SSL_GetImplementedCiphers(),
+                                       SSL_GetImplementedCiphers()
+                                       + SSL_GetNumImplementedCiphers());
+  std::remove(everythingElse.begin(), everythingElse.end(), suite);
+  peer->SetCipherSuiteChanges(justOne, everythingElse);
+}
+
+TEST_F(TransportTest, TestCipherMismatch) {
+  SetDtlsPeer();
+  ConfigureOneCipher(p1_, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256);
+  ConfigureOneCipher(p2_, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA);
+  ConnectSocketExpectFail();
+}
+
+TEST_F(TransportTest, TestCipherMandatoryOnlyGcm) {
+  SetDtlsPeer();
+  ConfigureOneCipher(p1_, TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256);
+  ConnectSocket();
+  ASSERT_EQ(TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, p1_->cipherSuite());
+}
+
+TEST_F(TransportTest, TestCipherMandatoryOnlyCbc) {
+  SetDtlsPeer();
+  ConfigureOneCipher(p1_, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA);
+  ConnectSocket();
+  ASSERT_EQ(TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, p1_->cipherSuite());
+}
+
+TEST_F(TransportTest, TestSrtpMismatch) {
+  std::vector<uint16_t> setA;
+  setA.push_back(SRTP_AES128_CM_HMAC_SHA1_80);
+  std::vector<uint16_t> setB;
+  setB.push_back(SRTP_AES128_CM_HMAC_SHA1_32);
+
+  p1_->SetSrtpCiphers(setA);
+  p2_->SetSrtpCiphers(setB);
+  SetDtlsPeer();
+  ConnectSocket();
+
+  ASSERT_EQ(0, p1_->srtpCipher());
+  ASSERT_EQ(0, p2_->srtpCipher());
+}
+
+// NSS doesn't support DHE suites on the server end.
+// This checks to see if we barf when that's the only option available.
+TEST_F(TransportTest, TestDheOnlyFails) {
+  SetDtlsPeer();
+
+  // p2_ is the client
+  // setting this on p1_ (the server) causes NSS to assert
+  ConfigureOneCipher(p2_, TLS_DHE_RSA_WITH_AES_128_CBC_SHA);
+  ConnectSocketExpectFail();
+}
+
+TEST(PushTests, LayerFail) {
+  RefPtr<TransportFlow> flow = new TransportFlow();
+  nsresult rv;
+  bool destroyed1, destroyed2;
+
+  rv = flow->PushLayer(new TransportLayerDummy(true, &destroyed1));
+  ASSERT_TRUE(NS_SUCCEEDED(rv));
+
+  rv = flow->PushLayer(new TransportLayerDummy(false, &destroyed2));
+  ASSERT_TRUE(NS_FAILED(rv));
+
+  ASSERT_EQ(TransportLayer::TS_ERROR, flow->state());
+  ASSERT_EQ(true, destroyed1);
+  ASSERT_EQ(true, destroyed2);
+
+  rv = flow->PushLayer(new TransportLayerDummy(true, &destroyed1));
+  ASSERT_TRUE(NS_FAILED(rv));
+  ASSERT_EQ(true, destroyed1);
+}
+
+TEST(PushTests, LayersFail) {
+  RefPtr<TransportFlow> flow = new TransportFlow();
+  nsresult rv;
+  bool destroyed1, destroyed2, destroyed3;
+
+  rv = flow->PushLayer(new TransportLayerDummy(true, &destroyed1));
+  ASSERT_TRUE(NS_SUCCEEDED(rv));
+
+  nsAutoPtr<std::queue<TransportLayer *> > layers(
+      new std::queue<TransportLayer *>());
+
+  layers->push(new TransportLayerDummy(true, &destroyed2));
+  layers->push(new TransportLayerDummy(false, &destroyed3));
+
+  rv = flow->PushLayers(layers);
+  ASSERT_TRUE(NS_FAILED(rv));
+
+  ASSERT_EQ(TransportLayer::TS_ERROR, flow->state());
+  ASSERT_EQ(true, destroyed1);
+  ASSERT_EQ(true, destroyed2);
+  ASSERT_EQ(true, destroyed3);
+
+  layers = new std::queue<TransportLayer *>();
+  layers->push(new TransportLayerDummy(true, &destroyed2));
+  layers->push(new TransportLayerDummy(true, &destroyed3));
+  rv = flow->PushLayers(layers);
+
+  ASSERT_TRUE(NS_FAILED(rv));
+  ASSERT_EQ(true, destroyed2);
+  ASSERT_EQ(true, destroyed3);
+}
+
+}  // end namespace