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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be | 
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. | 
| 4 | 4 | 
| 5 #include "content/browser/renderer_host/p2p/socket_host_udp.h" | 5 #include "content/browser/renderer_host/p2p/socket_host_udp.h" | 
| 6 | 6 | 
| 7 #include "base/bind.h" | 7 #include "base/bind.h" | 
| 8 #include "base/memory/ptr_util.h" | 8 #include "base/memory/ptr_util.h" | 
| 9 #include "base/metrics/field_trial.h" | 9 #include "base/metrics/field_trial.h" | 
| 10 #include "base/metrics/histogram_macros.h" | 10 #include "base/metrics/histogram_macros.h" | 
| 11 #include "base/stl_util.h" | 11 #include "base/stl_util.h" | 
| 12 #include "base/strings/string_number_conversions.h" | 12 #include "base/strings/string_number_conversions.h" | 
| 13 #include "base/strings/stringprintf.h" | 13 #include "base/strings/stringprintf.h" | 
| 14 #include "base/trace_event/trace_event.h" | 14 #include "base/trace_event/trace_event.h" | 
| 15 #include "build/build_config.h" | 15 #include "build/build_config.h" | 
| 16 #include "content/browser/renderer_host/p2p/socket_host_throttler.h" | 16 #include "content/browser/renderer_host/p2p/socket_host_throttler.h" | 
| 17 #include "content/common/p2p_messages.h" | 17 #include "content/common/p2p_messages.h" | 
| 18 #include "content/public/browser/content_browser_client.h" | 18 #include "content/public/browser/content_browser_client.h" | 
| 19 #include "content/public/common/content_client.h" | 19 #include "content/public/common/content_client.h" | 
| 20 #include "ipc/ipc_sender.h" | 20 #include "ipc/ipc_sender.h" | 
| 21 #include "net/base/io_buffer.h" | 21 #include "net/base/io_buffer.h" | 
| 22 #include "net/base/net_errors.h" | 22 #include "net/base/net_errors.h" | 
| 23 #include "net/log/net_log_source.h" | 23 #include "net/log/net_log_source.h" | 
| 24 #include "third_party/webrtc/media/base/rtputils.h" | 24 #include "third_party/webrtc/media/base/rtputils.h" | 
| 25 | 25 | 
| 26 namespace { | 26 namespace { | 
| 27 | 27 | 
| 28 // UDP packets cannot be bigger than 64k. | 28 // UDP packets cannot be bigger than 64k. | 
| 29 const int kReadBufferSize = 65536; | 29 const int kUDPReadBufferSize = 65536; | 
| 30 // Socket receive buffer size. | 30 // Socket receive buffer size. | 
| 31 const int kRecvSocketBufferSize = 65536;  // 64K | 31 const int kUDPRecvSocketBufferSize = 65536;  // 64K | 
| 32 | 32 | 
| 33 // Defines set of transient errors. These errors are ignored when we get them | 33 // Defines set of transient errors. These errors are ignored when we get them | 
| 34 // from sendto() or recvfrom() calls. | 34 // from sendto() or recvfrom() calls. | 
| 35 // | 35 // | 
| 36 // net::ERR_OUT_OF_MEMORY | 36 // net::ERR_OUT_OF_MEMORY | 
| 37 // | 37 // | 
| 38 // This is caused by ENOBUFS which means the buffer of the network interface | 38 // This is caused by ENOBUFS which means the buffer of the network interface | 
| 39 // is full. | 39 // is full. | 
| 40 // | 40 // | 
| 41 // net::ERR_CONNECTION_RESET | 41 // net::ERR_CONNECTION_RESET | 
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| 164                << (min_port == 0 | 164                << (min_port == 0 | 
| 165                        ? base::StringPrintf(":%d", local_address.port()) | 165                        ? base::StringPrintf(":%d", local_address.port()) | 
| 166                        : base::StringPrintf(", port range [%d-%d]", min_port, | 166                        : base::StringPrintf(", port range [%d-%d]", min_port, | 
| 167                                             max_port)) | 167                                             max_port)) | 
| 168                << " failed: " << result; | 168                << " failed: " << result; | 
| 169     OnError(); | 169     OnError(); | 
| 170     return false; | 170     return false; | 
| 171   } | 171   } | 
| 172 | 172 | 
| 173   // Setting recv socket buffer size. | 173   // Setting recv socket buffer size. | 
| 174   if (socket_->SetReceiveBufferSize(kRecvSocketBufferSize) != net::OK) { | 174   if (socket_->SetReceiveBufferSize(kUDPRecvSocketBufferSize) != net::OK) { | 
| 175     LOG(WARNING) << "Failed to set socket receive buffer size to " | 175     LOG(WARNING) << "Failed to set socket receive buffer size to " | 
| 176                  << kRecvSocketBufferSize; | 176                  << kUDPRecvSocketBufferSize; | 
| 177   } | 177   } | 
| 178 | 178 | 
| 179   net::IPEndPoint address; | 179   net::IPEndPoint address; | 
| 180   result = socket_->GetLocalAddress(&address); | 180   result = socket_->GetLocalAddress(&address); | 
| 181   if (result < 0) { | 181   if (result < 0) { | 
| 182     LOG(ERROR) << "P2PSocketHostUdp::Init(): unable to get local address: " | 182     LOG(ERROR) << "P2PSocketHostUdp::Init(): unable to get local address: " | 
| 183                << result; | 183                << result; | 
| 184     OnError(); | 184     OnError(); | 
| 185     return false; | 185     return false; | 
| 186   } | 186   } | 
| 187   VLOG(1) << "Local address: " << address.ToString(); | 187   VLOG(1) << "Local address: " << address.ToString(); | 
| 188 | 188 | 
| 189   state_ = STATE_OPEN; | 189   state_ = STATE_OPEN; | 
| 190 | 190 | 
| 191   SetSendBufferSize(); | 191   SetSendBufferSize(); | 
| 192 | 192 | 
| 193   // NOTE: Remote address will be same as what renderer provided. | 193   // NOTE: Remote address will be same as what renderer provided. | 
| 194   message_sender_->Send(new P2PMsg_OnSocketCreated( | 194   message_sender_->Send(new P2PMsg_OnSocketCreated( | 
| 195       id_, address, remote_address.ip_address)); | 195       id_, address, remote_address.ip_address)); | 
| 196 | 196 | 
| 197   recv_buffer_ = new net::IOBuffer(kReadBufferSize); | 197   recv_buffer_ = new net::IOBuffer(kUDPReadBufferSize); | 
| 198   DoRead(); | 198   DoRead(); | 
| 199 | 199 | 
| 200   return true; | 200   return true; | 
| 201 } | 201 } | 
| 202 | 202 | 
| 203 void P2PSocketHostUdp::OnError() { | 203 void P2PSocketHostUdp::OnError() { | 
| 204   socket_.reset(); | 204   socket_.reset(); | 
| 205   send_queue_.clear(); | 205   send_queue_.clear(); | 
| 206 | 206 | 
| 207   if (state_ == STATE_UNINITIALIZED || state_ == STATE_OPEN) | 207   if (state_ == STATE_UNINITIALIZED || state_ == STATE_OPEN) | 
| 208     message_sender_->Send(new P2PMsg_OnError(id_)); | 208     message_sender_->Send(new P2PMsg_OnError(id_)); | 
| 209 | 209 | 
| 210   state_ = STATE_ERROR; | 210   state_ = STATE_ERROR; | 
| 211 } | 211 } | 
| 212 | 212 | 
| 213 void P2PSocketHostUdp::DoRead() { | 213 void P2PSocketHostUdp::DoRead() { | 
| 214   int result; | 214   int result; | 
| 215   do { | 215   do { | 
| 216     result = socket_->RecvFrom( | 216     result = socket_->RecvFrom( | 
| 217         recv_buffer_.get(), | 217         recv_buffer_.get(), | 
| 218         kReadBufferSize, | 218         kUDPReadBufferSize, | 
| 219         &recv_address_, | 219         &recv_address_, | 
| 220         base::Bind(&P2PSocketHostUdp::OnRecv, base::Unretained(this))); | 220         base::Bind(&P2PSocketHostUdp::OnRecv, base::Unretained(this))); | 
| 221     if (result == net::ERR_IO_PENDING) | 221     if (result == net::ERR_IO_PENDING) | 
| 222       return; | 222       return; | 
| 223     HandleReadResult(result); | 223     HandleReadResult(result); | 
| 224   } while (state_ == STATE_OPEN); | 224   } while (state_ == STATE_OPEN); | 
| 225 } | 225 } | 
| 226 | 226 | 
| 227 void P2PSocketHostUdp::OnRecv(int result) { | 227 void P2PSocketHostUdp::OnRecv(int result) { | 
| 228   HandleReadResult(result); | 228   HandleReadResult(result); | 
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| 452   net::UDPServerSocket* socket = new net::UDPServerSocket( | 452   net::UDPServerSocket* socket = new net::UDPServerSocket( | 
| 453       GetContentClient()->browser()->GetNetLog(), net::NetLogSource()); | 453       GetContentClient()->browser()->GetNetLog(), net::NetLogSource()); | 
| 454 #if defined(OS_WIN) | 454 #if defined(OS_WIN) | 
| 455   socket->UseNonBlockingIO(); | 455   socket->UseNonBlockingIO(); | 
| 456 #endif | 456 #endif | 
| 457 | 457 | 
| 458   return base::WrapUnique(socket); | 458   return base::WrapUnique(socket); | 
| 459 } | 459 } | 
| 460 | 460 | 
| 461 }  // namespace content | 461 }  // namespace content | 
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