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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "remoting/protocol/pepper_stream_channel.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "crypto/hmac.h" | |
| 9 #include "jingle/glue/utils.h" | |
| 10 #include "net/base/cert_status_flags.h" | |
| 11 #include "net/base/cert_verifier.h" | |
| 12 #include "net/base/host_port_pair.h" | |
| 13 #include "net/base/ssl_config_service.h" | |
| 14 #include "net/socket/ssl_client_socket.h" | |
| 15 #include "net/socket/client_socket_factory.h" | |
| 16 #include "ppapi/c/pp_errors.h" | |
| 17 #include "ppapi/cpp/dev/transport_dev.h" | |
| 18 #include "ppapi/cpp/var.h" | |
| 19 #include "remoting/protocol/channel_authenticator.h" | |
| 20 #include "remoting/protocol/pepper_session.h" | |
| 21 #include "remoting/protocol/transport_config.h" | |
| 22 #include "third_party/libjingle/source/talk/p2p/base/candidate.h" | |
| 23 | |
| 24 namespace remoting { | |
| 25 namespace protocol { | |
| 26 | |
| 27 namespace { | |
| 28 | |
| 29 // Value is choosen to balance the extra latency against the reduced | |
| 30 // load due to ACK traffic. | |
| 31 const int kTcpAckDelayMilliseconds = 10; | |
| 32 | |
| 33 // Values for the TCP send and receive buffer size. This should be tuned to | |
| 34 // accomodate high latency network but not backlog the decoding pipeline. | |
| 35 const int kTcpReceiveBufferSize = 256 * 1024; | |
| 36 const int kTcpSendBufferSize = kTcpReceiveBufferSize + 30 * 1024; | |
| 37 | |
| 38 } // namespace | |
| 39 | |
| 40 PepperStreamChannel::PepperStreamChannel( | |
| 41 PepperSession* session, | |
| 42 const std::string& name, | |
| 43 const Session::StreamChannelCallback& callback) | |
| 44 : session_(session), | |
| 45 name_(name), | |
| 46 callback_(callback), | |
| 47 channel_(NULL), | |
| 48 connected_(false) { | |
| 49 } | |
| 50 | |
| 51 PepperStreamChannel::~PepperStreamChannel() { | |
| 52 session_->OnDeleteChannel(this); | |
| 53 // Channel should be already destroyed if we were connected. | |
| 54 DCHECK(!connected_ || channel_ == NULL); | |
| 55 } | |
| 56 | |
| 57 void PepperStreamChannel::Connect( | |
| 58 pp::Instance* pp_instance, | |
| 59 const TransportConfig& transport_config, | |
| 60 scoped_ptr<ChannelAuthenticator> authenticator) { | |
| 61 DCHECK(CalledOnValidThread()); | |
| 62 | |
| 63 authenticator_ = authenticator.Pass(); | |
| 64 | |
| 65 pp::Transport_Dev* transport = | |
| 66 new pp::Transport_Dev(pp_instance, name_.c_str(), | |
| 67 PP_TRANSPORTTYPE_STREAM); | |
| 68 | |
| 69 if (transport->SetProperty(PP_TRANSPORTPROPERTY_TCP_RECEIVE_WINDOW, | |
| 70 pp::Var(kTcpReceiveBufferSize)) != PP_OK) { | |
| 71 LOG(ERROR) << "Failed to set TCP receive window"; | |
| 72 } | |
| 73 if (transport->SetProperty(PP_TRANSPORTPROPERTY_TCP_SEND_WINDOW, | |
| 74 pp::Var(kTcpSendBufferSize)) != PP_OK) { | |
| 75 LOG(ERROR) << "Failed to set TCP send window"; | |
| 76 } | |
| 77 | |
| 78 if (transport->SetProperty(PP_TRANSPORTPROPERTY_TCP_NO_DELAY, | |
| 79 pp::Var(true)) != PP_OK) { | |
| 80 LOG(ERROR) << "Failed to set TCP_NODELAY"; | |
| 81 } | |
| 82 | |
| 83 if (transport->SetProperty(PP_TRANSPORTPROPERTY_TCP_ACK_DELAY, | |
| 84 pp::Var(kTcpAckDelayMilliseconds)) != PP_OK) { | |
| 85 LOG(ERROR) << "Failed to set TCP ACK delay."; | |
| 86 } | |
| 87 | |
| 88 if (transport_config.nat_traversal) { | |
| 89 if (transport->SetProperty( | |
| 90 PP_TRANSPORTPROPERTY_STUN_SERVER, | |
| 91 pp::Var(transport_config.stun_server)) != PP_OK) { | |
| 92 LOG(ERROR) << "Failed to set STUN server."; | |
| 93 } | |
| 94 | |
| 95 if (transport->SetProperty( | |
| 96 PP_TRANSPORTPROPERTY_RELAY_SERVER, | |
| 97 pp::Var(transport_config.relay_server)) != PP_OK) { | |
| 98 LOG(ERROR) << "Failed to set relay server."; | |
| 99 } | |
| 100 | |
| 101 if (transport->SetProperty( | |
| 102 PP_TRANSPORTPROPERTY_RELAY_PASSWORD, | |
| 103 pp::Var(transport_config.relay_token)) != PP_OK) { | |
| 104 LOG(ERROR) << "Failed to set relay token."; | |
| 105 } | |
| 106 | |
| 107 if (transport->SetProperty( | |
| 108 PP_TRANSPORTPROPERTY_RELAY_MODE, | |
| 109 pp::Var(PP_TRANSPORTRELAYMODE_GOOGLE)) != PP_OK) { | |
| 110 LOG(ERROR) << "Failed to set relay mode."; | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 if (transport->SetProperty(PP_TRANSPORTPROPERTY_DISABLE_TCP_TRANSPORT, | |
| 115 pp::Var(true)) != PP_OK) { | |
| 116 LOG(ERROR) << "Failed to set DISABLE_TCP_TRANSPORT flag."; | |
| 117 } | |
| 118 | |
| 119 channel_ = new PepperTransportSocketAdapter(transport, name_, this); | |
| 120 owned_channel_.reset(channel_); | |
| 121 | |
| 122 int result = channel_->Connect(base::Bind(&PepperStreamChannel::OnP2PConnect, | |
| 123 base::Unretained(this))); | |
| 124 if (result != net::ERR_IO_PENDING) | |
| 125 OnP2PConnect(result); | |
| 126 } | |
| 127 | |
| 128 void PepperStreamChannel::AddRemoteCandidate( | |
| 129 const cricket::Candidate& candidate) { | |
| 130 DCHECK(CalledOnValidThread()); | |
| 131 if (channel_) | |
| 132 channel_->AddRemoteCandidate(jingle_glue::SerializeP2PCandidate(candidate)); | |
| 133 } | |
| 134 | |
| 135 const std::string& PepperStreamChannel::name() const { | |
| 136 DCHECK(CalledOnValidThread()); | |
| 137 return name_; | |
| 138 } | |
| 139 | |
| 140 bool PepperStreamChannel::is_connected() const { | |
| 141 DCHECK(CalledOnValidThread()); | |
| 142 return connected_; | |
| 143 } | |
| 144 | |
| 145 void PepperStreamChannel::OnChannelDeleted() { | |
| 146 if (connected_) { | |
| 147 channel_ = NULL; | |
| 148 // The PepperTransportSocketAdapter is being deleted, so delete | |
| 149 // the channel too. | |
| 150 delete this; | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 void PepperStreamChannel::OnChannelNewLocalCandidate( | |
| 155 const std::string& candidate) { | |
| 156 DCHECK(CalledOnValidThread()); | |
| 157 | |
| 158 cricket::Candidate candidate_value; | |
| 159 if (!jingle_glue::DeserializeP2PCandidate(candidate, &candidate_value)) { | |
| 160 LOG(ERROR) << "Failed to parse candidate " << candidate; | |
| 161 } | |
| 162 session_->AddLocalCandidate(candidate_value); | |
| 163 } | |
| 164 | |
| 165 void PepperStreamChannel::OnP2PConnect(int result) { | |
| 166 DCHECK(CalledOnValidThread()); | |
| 167 | |
| 168 if (result != net::OK) | |
| 169 NotifyConnectFailed(); | |
| 170 | |
| 171 authenticator_->SecureAndAuthenticate( | |
| 172 owned_channel_.PassAs<net::StreamSocket>(), | |
| 173 base::Bind(&PepperStreamChannel::OnAuthenticationDone, | |
| 174 base::Unretained(this))); | |
| 175 } | |
| 176 | |
| 177 | |
| 178 void PepperStreamChannel::OnAuthenticationDone( | |
| 179 net::Error error, scoped_ptr<net::StreamSocket> socket) { | |
| 180 DCHECK(CalledOnValidThread()); | |
| 181 if (error != net::OK) { | |
| 182 NotifyConnectFailed(); | |
| 183 return; | |
| 184 } | |
| 185 | |
| 186 NotifyConnected(socket.Pass()); | |
| 187 } | |
| 188 | |
| 189 void PepperStreamChannel::NotifyConnected( | |
| 190 scoped_ptr<net::StreamSocket> socket) { | |
| 191 DCHECK(!connected_); | |
| 192 callback_.Run(socket.Pass()); | |
| 193 connected_ = true; | |
| 194 } | |
| 195 | |
| 196 void PepperStreamChannel::NotifyConnectFailed() { | |
| 197 channel_ = NULL; | |
| 198 owned_channel_.reset(); | |
| 199 authenticator_.reset(); | |
| 200 | |
| 201 NotifyConnected(scoped_ptr<net::StreamSocket>(NULL)); | |
| 202 } | |
| 203 | |
| 204 } // namespace protocol | |
| 205 } // namespace remoting | |
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Chromium Code Reviews
Issue 9325036:
Add abstract interfaces for the transport layer. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src