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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 "content/browser/renderer_host/pepper/pepper_udp_socket.h" | |
| 6 | |
| 7 #include <string.h> | |
| 8 | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "base/logging.h" | |
| 11 #include "content/browser/renderer_host/pepper/pepper_message_filter.h" | |
| 12 #include "content/public/browser/browser_thread.h" | |
| 13 #include "net/base/io_buffer.h" | |
| 14 #include "net/base/net_errors.h" | |
| 15 #include "net/udp/udp_server_socket.h" | |
| 16 #include "ppapi/proxy/ppapi_messages.h" | |
| 17 #include "ppapi/shared_impl/private/net_address_private_impl.h" | |
| 18 #include "ppapi/shared_impl/private/udp_socket_private_impl.h" | |
| 19 | |
| 20 using ppapi::NetAddressPrivateImpl; | |
| 21 | |
| 22 namespace content { | |
| 23 | |
| 24 PepperUDPSocket::PepperUDPSocket( | |
| 25 PepperMessageFilter* manager, | |
| 26 int32 routing_id, | |
| 27 uint32 plugin_dispatcher_id, | |
| 28 uint32 socket_id) | |
| 29 : manager_(manager), | |
| 30 routing_id_(routing_id), | |
| 31 plugin_dispatcher_id_(plugin_dispatcher_id), | |
| 32 socket_id_(socket_id), | |
| 33 allow_address_reuse_(false), | |
| 34 allow_broadcast_(false) { | |
| 35 DCHECK(manager); | |
| 36 } | |
| 37 | |
| 38 PepperUDPSocket::~PepperUDPSocket() { | |
| 39 // Make sure there are no further callbacks from socket_. | |
| 40 if (socket_.get()) | |
| 41 socket_->Close(); | |
| 42 } | |
| 43 | |
| 44 void PepperUDPSocket::AllowAddressReuse(bool value) { | |
| 45 allow_address_reuse_ = value; | |
| 46 } | |
| 47 | |
| 48 void PepperUDPSocket::AllowBroadcast(bool value) { | |
| 49 allow_broadcast_ = value; | |
| 50 } | |
| 51 | |
| 52 void PepperUDPSocket::Bind(const PP_NetAddress_Private& addr) { | |
| 53 socket_.reset(new net::UDPServerSocket(NULL, net::NetLog::Source())); | |
| 54 | |
| 55 net::IPAddressNumber address; | |
| 56 int port; | |
| 57 if (!socket_.get() || | |
| 58 !NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &address, &port)) { | |
| 59 SendBindACKError(); | |
| 60 return; | |
| 61 } | |
| 62 | |
| 63 if (allow_address_reuse_) | |
| 64 socket_->AllowAddressReuse(); | |
| 65 if (allow_broadcast_) | |
| 66 socket_->AllowBroadcast(); | |
| 67 | |
| 68 int result = socket_->Listen(net::IPEndPoint(address, port)); | |
| 69 | |
| 70 if (result == net::OK && | |
| 71 socket_->GetLocalAddress(&bound_address_) != net::OK) { | |
| 72 SendBindACKError(); | |
| 73 return; | |
| 74 } | |
| 75 | |
| 76 OnBindCompleted(result); | |
| 77 } | |
| 78 | |
| 79 void PepperUDPSocket::RecvFrom(int32_t num_bytes) { | |
| 80 if (recvfrom_buffer_.get() || num_bytes < 0) { | |
| 81 SendRecvFromACKError(); | |
| 82 return; | |
| 83 } | |
| 84 | |
| 85 if (num_bytes > ppapi::UDPSocketPrivateImpl::kMaxReadSize) { | |
| 86 NOTREACHED(); | |
| 87 num_bytes = ppapi::UDPSocketPrivateImpl::kMaxReadSize; | |
| 88 } | |
| 89 | |
| 90 recvfrom_buffer_ = new net::IOBuffer(num_bytes); | |
| 91 int result = socket_->RecvFrom( | |
| 92 recvfrom_buffer_, num_bytes, &recvfrom_address_, | |
| 93 base::Bind(&PepperUDPSocket::OnRecvFromCompleted, | |
| 94 base::Unretained(this))); | |
| 95 | |
| 96 if (result != net::ERR_IO_PENDING) | |
| 97 OnRecvFromCompleted(result); | |
| 98 } | |
| 99 | |
| 100 void PepperUDPSocket::SendTo(const std::string& data, | |
| 101 const PP_NetAddress_Private& addr) { | |
| 102 if (sendto_buffer_.get() || data.empty()) { | |
| 103 SendSendToACKError(); | |
| 104 return; | |
| 105 } | |
| 106 | |
| 107 net::IPAddressNumber address; | |
| 108 int port; | |
| 109 if (!NetAddressPrivateImpl::NetAddressToIPEndPoint(addr, &address, &port)) { | |
| 110 SendSendToACKError(); | |
| 111 return; | |
| 112 } | |
| 113 | |
| 114 int data_size = data.size(); | |
| 115 if (data_size > ppapi::UDPSocketPrivateImpl::kMaxWriteSize) { | |
| 116 NOTREACHED(); | |
| 117 data_size = ppapi::UDPSocketPrivateImpl::kMaxWriteSize; | |
| 118 } | |
| 119 | |
| 120 sendto_buffer_ = new net::IOBuffer(data_size); | |
| 121 memcpy(sendto_buffer_->data(), data.data(), data_size); | |
| 122 int result = socket_->SendTo( | |
| 123 sendto_buffer_, data_size, net::IPEndPoint(address, port), | |
| 124 base::Bind(&PepperUDPSocket::OnSendToCompleted, base::Unretained(this))); | |
| 125 | |
| 126 if (result != net::ERR_IO_PENDING) | |
| 127 OnSendToCompleted(result); | |
| 128 } | |
| 129 | |
| 130 void PepperUDPSocket::SendRecvFromACKError() { | |
| 131 PP_NetAddress_Private addr = NetAddressPrivateImpl::kInvalidNetAddress; | |
| 132 manager_->Send(new PpapiMsg_PPBUDPSocket_RecvFromACK( | |
| 133 routing_id_, plugin_dispatcher_id_, socket_id_, false, std::string(), | |
| 134 addr)); | |
| 135 } | |
| 136 | |
| 137 void PepperUDPSocket::SendSendToACKError() { | |
| 138 manager_->Send(new PpapiMsg_PPBUDPSocket_SendToACK( | |
| 139 routing_id_, plugin_dispatcher_id_, socket_id_, false, 0)); | |
| 140 } | |
| 141 | |
| 142 void PepperUDPSocket::SendBindACKError() { | |
| 143 PP_NetAddress_Private addr = NetAddressPrivateImpl::kInvalidNetAddress; | |
| 144 manager_->Send(new PpapiMsg_PPBUDPSocket_BindACK( | |
| 145 routing_id_, plugin_dispatcher_id_, socket_id_, false, addr)); | |
| 146 } | |
| 147 | |
| 148 void PepperUDPSocket::OnBindCompleted(int result) { | |
| 149 PP_NetAddress_Private addr = NetAddressPrivateImpl::kInvalidNetAddress; | |
| 150 if (result < 0 || | |
| 151 !NetAddressPrivateImpl::IPEndPointToNetAddress(bound_address_.address(), | |
| 152 bound_address_.port(), | |
| 153 &addr)) { | |
| 154 SendBindACKError(); | |
| 155 } else { | |
| 156 manager_->Send(new PpapiMsg_PPBUDPSocket_BindACK( | |
| 157 routing_id_, plugin_dispatcher_id_, socket_id_, true, addr)); | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 void PepperUDPSocket::OnRecvFromCompleted(int result) { | |
| 162 DCHECK(recvfrom_buffer_.get()); | |
| 163 | |
| 164 // Convert IPEndPoint we get back from RecvFrom to a PP_NetAddress_Private, | |
| 165 // to send back. | |
| 166 PP_NetAddress_Private addr = NetAddressPrivateImpl::kInvalidNetAddress; | |
| 167 if (result < 0 || | |
| 168 !NetAddressPrivateImpl::IPEndPointToNetAddress( | |
| 169 recvfrom_address_.address(), | |
| 170 recvfrom_address_.port(), | |
| 171 &addr)) { | |
| 172 SendRecvFromACKError(); | |
| 173 } else { | |
| 174 manager_->Send(new PpapiMsg_PPBUDPSocket_RecvFromACK( | |
| 175 routing_id_, plugin_dispatcher_id_, socket_id_, true, | |
| 176 std::string(recvfrom_buffer_->data(), result), addr)); | |
| 177 } | |
| 178 | |
| 179 recvfrom_buffer_ = NULL; | |
| 180 } | |
| 181 | |
| 182 void PepperUDPSocket::OnSendToCompleted(int result) { | |
| 183 DCHECK(sendto_buffer_.get()); | |
| 184 | |
| 185 if (result < 0) { | |
| 186 SendSendToACKError(); | |
| 187 } else { | |
| 188 manager_->Send(new PpapiMsg_PPBUDPSocket_SendToACK( | |
| 189 routing_id_, plugin_dispatcher_id_, socket_id_, true, result)); | |
| 190 } | |
| 191 | |
| 192 sendto_buffer_ = NULL; | |
| 193 } | |
| 194 | |
| 195 } // namespace content | |
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