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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2004--2005, Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #include "talk/base/byteorder.h" | |
| 29 #include "talk/base/common.h" | |
| 30 #include "talk/base/logging.h" | |
| 31 #include "talk/base/winping.h" | |
| 32 #include "talk/base/winsock_initializer.h" | |
| 33 #include "talk/base/win32socketserver.h" | |
| 34 #include "talk/base/win32window.h" | |
| 35 #include <ws2tcpip.h> | |
| 36 | |
| 37 namespace talk_base { | |
| 38 | |
| 39 /////////////////////////////////////////////////////////////////////////////// | |
| 40 // Win32Socket | |
| 41 /////////////////////////////////////////////////////////////////////////////// | |
| 42 | |
| 43 static const int kfRead = 0x0001; | |
| 44 static const int kfWrite = 0x0002; | |
| 45 | |
| 46 // Standard MTUs | |
| 47 static const uint16 PACKET_MAXIMUMS[] = { | |
| 48 65535, // Theoretical maximum, Hyperchannel | |
| 49 32000, // Nothing | |
| 50 17914, // 16Mb IBM Token Ring | |
| 51 8166, // IEEE 802.4 | |
| 52 //4464, // IEEE 802.5 (4Mb max) | |
| 53 4352, // FDDI | |
| 54 //2048, // Wideband Network | |
| 55 2002, // IEEE 802.5 (4Mb recommended) | |
| 56 //1536, // Expermental Ethernet Networks | |
| 57 //1500, // Ethernet, Point-to-Point (default) | |
| 58 1492, // IEEE 802.3 | |
| 59 1006, // SLIP, ARPANET | |
| 60 //576, // X.25 Networks | |
| 61 //544, // DEC IP Portal | |
| 62 //512, // NETBIOS | |
| 63 508, // IEEE 802/Source-Rt Bridge, ARCNET | |
| 64 296, // Point-to-Point (low delay) | |
| 65 68, // Official minimum | |
| 66 0, // End of list marker | |
| 67 }; | |
| 68 | |
| 69 static const uint32 IP_HEADER_SIZE = 20; | |
| 70 static const uint32 ICMP_HEADER_SIZE = 8; | |
| 71 | |
| 72 #ifdef DEBUG | |
| 73 LPCSTR WSAErrorToString(int error, LPCSTR *description_result) { | |
| 74 LPCSTR string = "Unspecified"; | |
| 75 LPCSTR description = "Unspecified description"; | |
| 76 switch (error) { | |
| 77 case ERROR_SUCCESS: | |
| 78 string = "SUCCESS"; | |
| 79 description = "Operation succeeded"; | |
| 80 break; | |
| 81 case WSAEWOULDBLOCK: | |
| 82 string = "WSAEWOULDBLOCK"; | |
| 83 description = "Using a non-blocking socket, will notify later"; | |
| 84 break; | |
| 85 case WSAEACCES: | |
| 86 string = "WSAEACCES"; | |
| 87 description = "Access denied, or sharing violation"; | |
| 88 break; | |
| 89 case WSAEADDRNOTAVAIL: | |
| 90 string = "WSAEADDRNOTAVAIL"; | |
| 91 description = "Address is not valid in this context"; | |
| 92 break; | |
| 93 case WSAENETDOWN: | |
| 94 string = "WSAENETDOWN"; | |
| 95 description = "Network is down"; | |
| 96 break; | |
| 97 case WSAENETUNREACH: | |
| 98 string = "WSAENETUNREACH"; | |
| 99 description = "Network is up, but unreachable"; | |
| 100 break; | |
| 101 case WSAENETRESET: | |
| 102 string = "WSANETRESET"; | |
| 103 description = "Connection has been reset due to keep-alive activity"; | |
| 104 break; | |
| 105 case WSAECONNABORTED: | |
| 106 string = "WSAECONNABORTED"; | |
| 107 description = "Aborted by host"; | |
| 108 break; | |
| 109 case WSAECONNRESET: | |
| 110 string = "WSAECONNRESET"; | |
| 111 description = "Connection reset by host"; | |
| 112 break; | |
| 113 case WSAETIMEDOUT: | |
| 114 string = "WSAETIMEDOUT"; | |
| 115 description = "Timed out, host failed to respond"; | |
| 116 break; | |
| 117 case WSAECONNREFUSED: | |
| 118 string = "WSAECONNREFUSED"; | |
| 119 description = "Host actively refused connection"; | |
| 120 break; | |
| 121 case WSAEHOSTDOWN: | |
| 122 string = "WSAEHOSTDOWN"; | |
| 123 description = "Host is down"; | |
| 124 break; | |
| 125 case WSAEHOSTUNREACH: | |
| 126 string = "WSAEHOSTUNREACH"; | |
| 127 description = "Host is unreachable"; | |
| 128 break; | |
| 129 case WSAHOST_NOT_FOUND: | |
| 130 string = "WSAHOST_NOT_FOUND"; | |
| 131 description = "No such host is known"; | |
| 132 break; | |
| 133 } | |
| 134 if (description_result) { | |
| 135 *description_result = description; | |
| 136 } | |
| 137 return string; | |
| 138 } | |
| 139 | |
| 140 void ReportWSAError(LPCSTR context, int error, const sockaddr_in& addr) { | |
| 141 talk_base::SocketAddress address; | |
| 142 address.FromSockAddr(addr); | |
| 143 LPCSTR description_string; | |
| 144 LPCSTR error_string = WSAErrorToString(error, &description_string); | |
| 145 LOG(LS_INFO) << context << " = " << error | |
| 146 << " (" << error_string << ":" << description_string << ") [" | |
| 147 << address.ToString() << "]"; | |
| 148 } | |
| 149 #else | |
| 150 void ReportWSAError(LPCSTR context, int error, const sockaddr_in& addr) { } | |
| 151 #endif | |
| 152 | |
| 153 ///////////////////////////////////////////////////////////////////////////// | |
| 154 // Win32Socket::EventSink | |
| 155 ///////////////////////////////////////////////////////////////////////////// | |
| 156 | |
| 157 #define WM_SOCKETNOTIFY (WM_USER + 50) | |
| 158 #define WM_DNSNOTIFY (WM_USER + 51) | |
| 159 | |
| 160 struct Win32Socket::DnsLookup { | |
| 161 HANDLE handle; | |
| 162 uint16 port; | |
| 163 char buffer[MAXGETHOSTSTRUCT]; | |
| 164 }; | |
| 165 | |
| 166 class Win32Socket::EventSink : public Win32Window { | |
| 167 public: | |
| 168 EventSink(Win32Socket * parent) : parent_(parent) { } | |
| 169 | |
| 170 void Dispose(); | |
| 171 | |
| 172 virtual bool OnMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, | |
| 173 LRESULT& result); | |
| 174 virtual void OnFinalMessage(HWND hWnd); | |
| 175 | |
| 176 private: | |
| 177 bool OnSocketNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& result); | |
| 178 bool OnDnsNotify(WPARAM wParam, LPARAM lParam, LRESULT& result); | |
| 179 | |
| 180 Win32Socket * parent_; | |
| 181 }; | |
| 182 | |
| 183 void | |
| 184 Win32Socket::EventSink::Dispose() { | |
| 185 parent_ = NULL; | |
| 186 if (::IsWindow(handle())) { | |
| 187 ::DestroyWindow(handle()); | |
| 188 } else { | |
| 189 delete this; | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 bool Win32Socket::EventSink::OnMessage(UINT uMsg, WPARAM wParam, LPARAM lParam, | |
| 194 LRESULT& result) { | |
| 195 switch (uMsg) { | |
| 196 case WM_SOCKETNOTIFY: | |
| 197 case WM_TIMER: | |
| 198 return OnSocketNotify(uMsg, wParam, lParam, result); | |
| 199 case WM_DNSNOTIFY: | |
| 200 return OnDnsNotify(wParam, lParam, result); | |
| 201 } | |
| 202 return false; | |
| 203 } | |
| 204 | |
| 205 bool | |
| 206 Win32Socket::EventSink::OnSocketNotify(UINT uMsg, WPARAM wParam, LPARAM lParam, | |
| 207 LRESULT& result) { | |
| 208 result = 0; | |
| 209 | |
| 210 // Make sure the socket isn't already closed | |
| 211 if (!parent_ || (parent_->socket_ == INVALID_SOCKET)) | |
| 212 return true; | |
| 213 | |
| 214 int event = WSAGETSELECTEVENT(lParam); | |
| 215 int wsa_error = WSAGETSELECTERROR(lParam); | |
| 216 | |
| 217 if (uMsg == WM_TIMER) { | |
| 218 event = FD_CLOSE; | |
| 219 wsa_error = WSAETIMEDOUT; | |
| 220 } else if (event == FD_CLOSE) { | |
| 221 char ch; | |
| 222 if (::recv(parent_->socket_, &ch, 1, MSG_PEEK) > 0) { | |
| 223 parent_->signal_close_ = true; | |
| 224 return true; | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 parent_->OnSocketNotify(event, wsa_error); | |
| 229 return true; | |
| 230 } | |
| 231 | |
| 232 bool | |
| 233 Win32Socket::EventSink::OnDnsNotify(WPARAM wParam, LPARAM lParam, | |
| 234 LRESULT& result) { | |
| 235 result = 0; | |
| 236 | |
| 237 if (!parent_) | |
| 238 return true; | |
| 239 | |
| 240 if (!parent_->dns_ || | |
| 241 (parent_->dns_->handle != reinterpret_cast<HANDLE>(wParam))) { | |
| 242 ASSERT(false); | |
| 243 return true; | |
| 244 } | |
| 245 | |
| 246 uint32 ip = 0; | |
| 247 int error = WSAGETASYNCERROR(lParam); | |
| 248 | |
| 249 if (error == 0) { | |
| 250 hostent * pHost = reinterpret_cast<hostent *>(parent_->dns_->buffer); | |
| 251 uint32 net_ip = *reinterpret_cast<uint32 *>(pHost->h_addr_list[0]); | |
| 252 ip = talk_base::NetworkToHost32(net_ip); | |
| 253 } | |
| 254 | |
| 255 parent_->OnDnsNotify(ip, error); | |
| 256 return true; | |
| 257 } | |
| 258 | |
| 259 void | |
| 260 Win32Socket::EventSink::OnFinalMessage(HWND hWnd) { | |
| 261 delete this; | |
| 262 } | |
| 263 | |
| 264 ///////////////////////////////////////////////////////////////////////////// | |
| 265 // Win32Socket | |
| 266 ///////////////////////////////////////////////////////////////////////////// | |
| 267 | |
| 268 Win32Socket::Win32Socket() | |
| 269 : socket_(INVALID_SOCKET), error_(0), state_(CS_CLOSED), | |
| 270 signal_close_(false), sink_(NULL), dns_(NULL) { | |
| 271 talk_base::EnsureWinsockInit(); | |
| 272 // TODO: replace addr_ with SocketAddress | |
| 273 memset(&addr_, 0, sizeof(addr_)); | |
| 274 } | |
| 275 | |
| 276 Win32Socket::~Win32Socket() { | |
| 277 Close(); | |
| 278 } | |
| 279 | |
| 280 int | |
| 281 Win32Socket::Attach(SOCKET s) { | |
| 282 ASSERT(socket_ == INVALID_SOCKET); | |
| 283 if (socket_ != INVALID_SOCKET) | |
| 284 return SOCKET_ERROR; | |
| 285 | |
| 286 ASSERT(s != INVALID_SOCKET); | |
| 287 if (s == INVALID_SOCKET) | |
| 288 return SOCKET_ERROR; | |
| 289 | |
| 290 socket_ = s; | |
| 291 state_ = CS_CONNECTED; | |
| 292 | |
| 293 if (!Create(FD_READ | FD_WRITE | FD_CLOSE)) | |
| 294 return SOCKET_ERROR; | |
| 295 | |
| 296 return 0; | |
| 297 } | |
| 298 | |
| 299 void | |
| 300 Win32Socket::SetTimeout(int ms) { | |
| 301 if (sink_) | |
| 302 ::SetTimer(sink_->handle(), 1, ms, 0); | |
| 303 } | |
| 304 | |
| 305 talk_base::SocketAddress | |
| 306 Win32Socket::GetLocalAddress() const { | |
| 307 sockaddr_in addr; | |
| 308 socklen_t addrlen = sizeof(addr); | |
| 309 int result = ::getsockname(socket_, (sockaddr*)&addr, &addrlen); | |
| 310 ASSERT(addrlen == sizeof(addr)); | |
| 311 talk_base::SocketAddress address; | |
| 312 if (result >= 0) { | |
| 313 address.FromSockAddr(addr); | |
| 314 } else { | |
| 315 ASSERT(result >= 0); | |
| 316 } | |
| 317 return address; | |
| 318 } | |
| 319 | |
| 320 talk_base::SocketAddress | |
| 321 Win32Socket::GetRemoteAddress() const { | |
| 322 sockaddr_in addr; | |
| 323 socklen_t addrlen = sizeof(addr); | |
| 324 int result = ::getpeername(socket_, (sockaddr*)&addr, &addrlen); | |
| 325 ASSERT(addrlen == sizeof(addr)); | |
| 326 talk_base::SocketAddress address; | |
| 327 if (result >= 0) { | |
| 328 address.FromSockAddr(addr); | |
| 329 } else { | |
| 330 ASSERT(errno == ENOTCONN); | |
| 331 } | |
| 332 return address; | |
| 333 } | |
| 334 | |
| 335 int | |
| 336 Win32Socket::Bind(const talk_base::SocketAddress& addr) { | |
| 337 ASSERT(socket_ == INVALID_SOCKET); | |
| 338 if (socket_ != INVALID_SOCKET) | |
| 339 return SOCKET_ERROR; | |
| 340 | |
| 341 if (!Create(FD_ACCEPT | FD_CLOSE)) | |
| 342 return SOCKET_ERROR; | |
| 343 | |
| 344 sockaddr_in saddr; | |
| 345 addr.ToSockAddr(&saddr); | |
| 346 int err = ::bind(socket_, (sockaddr*)&saddr, sizeof(saddr)); | |
| 347 UpdateLastError(); | |
| 348 return err; | |
| 349 } | |
| 350 | |
| 351 int | |
| 352 Win32Socket::Connect(const talk_base::SocketAddress& addr) { | |
| 353 ASSERT(socket_ == INVALID_SOCKET); | |
| 354 if (socket_ != INVALID_SOCKET) | |
| 355 return SOCKET_ERROR; | |
| 356 | |
| 357 if (!Create(FD_READ | FD_WRITE | FD_CONNECT | FD_CLOSE)) | |
| 358 return SOCKET_ERROR; | |
| 359 | |
| 360 if (!addr.IsUnresolved()) { | |
| 361 sockaddr_in saddr; | |
| 362 addr.ToSockAddr(&saddr); | |
| 363 | |
| 364 // now connect | |
| 365 return DoConnect(saddr); | |
| 366 } | |
| 367 | |
| 368 LOG_F(LS_INFO) << "async dns lookup (" << addr.IPAsString() << ")"; | |
| 369 DnsLookup * dns = new DnsLookup; | |
| 370 dns->handle = WSAAsyncGetHostByName(sink_->handle(), WM_DNSNOTIFY, | |
| 371 addr.IPAsString().c_str(), dns->buffer, sizeof(dns->buffer)); | |
| 372 | |
| 373 if (!dns->handle) { | |
| 374 LOG_F(LS_ERROR) << "WSAAsyncGetHostByName error: " << WSAGetLastError(); | |
| 375 delete dns; | |
| 376 UpdateLastError(); | |
| 377 Close(); | |
| 378 return SOCKET_ERROR; | |
| 379 } | |
| 380 | |
| 381 dns->port = addr.port(); | |
| 382 dns_ = dns; | |
| 383 state_ = CS_CONNECTING; | |
| 384 return 0; | |
| 385 } | |
| 386 | |
| 387 int | |
| 388 Win32Socket::DoConnect(const sockaddr_in& addr) { | |
| 389 connect_time_ = talk_base::GetMillisecondCount(); | |
| 390 int result = connect(socket_, (SOCKADDR*)&addr, sizeof(addr)); | |
| 391 if (result == SOCKET_ERROR) { | |
| 392 int code = WSAGetLastError(); | |
| 393 if (code != WSAEWOULDBLOCK) { | |
| 394 ReportWSAError("WSAAsync:connect", code, addr); | |
| 395 error_ = code; | |
| 396 Close(); | |
| 397 return SOCKET_ERROR; | |
| 398 } | |
| 399 } | |
| 400 addr_ = addr; | |
| 401 state_ = CS_CONNECTING; | |
| 402 return 0; | |
| 403 } | |
| 404 | |
| 405 void | |
| 406 Win32Socket::OnSocketNotify(int event, int error) { | |
| 407 error_ = error; | |
| 408 switch (event) { | |
| 409 case FD_CONNECT: | |
| 410 if (error != ERROR_SUCCESS) { | |
| 411 ReportWSAError("WSAAsync:connect notify", error, addr_); | |
| 412 #ifdef DEBUG | |
| 413 int32 duration = talk_base::TimeDiff(talk_base::GetMillisecondCount(), | |
| 414 connect_time_); | |
| 415 LOG(LS_INFO) << "WSAAsync:connect error (" << duration | |
| 416 << " ms), faking close"; | |
| 417 #endif | |
| 418 Close(); | |
| 419 // If you get an error connecting, close doesn't really do anything | |
| 420 // and it certainly doesn't send back any close notification, but | |
| 421 // we really only maintain a few states, so it is easiest to get | |
| 422 // back into a known state by pretending that a close happened, even | |
| 423 // though the connect event never did occur. | |
| 424 SignalCloseEvent(this, error); | |
| 425 } else { | |
| 426 #ifdef DEBUG | |
| 427 int32 duration = talk_base::TimeDiff(talk_base::GetMillisecondCount(), | |
| 428 connect_time_); | |
| 429 LOG(LS_INFO) << "WSAAsync:connect (" << duration << " ms)"; | |
| 430 #endif | |
| 431 state_ = CS_CONNECTED; | |
| 432 SignalConnectEvent(this); | |
| 433 } | |
| 434 break; | |
| 435 | |
| 436 case FD_ACCEPT: | |
| 437 case FD_READ: | |
| 438 if (error != ERROR_SUCCESS) { | |
| 439 ReportWSAError("WSAAsync:read notify", error, addr_); | |
| 440 Close(); | |
| 441 } else { | |
| 442 SignalReadEvent(this); | |
| 443 } | |
| 444 break; | |
| 445 | |
| 446 case FD_WRITE: | |
| 447 if (error != ERROR_SUCCESS) { | |
| 448 ReportWSAError("WSAAsync:write notify", error, addr_); | |
| 449 Close(); | |
| 450 } else { | |
| 451 SignalWriteEvent(this); | |
| 452 } | |
| 453 break; | |
| 454 | |
| 455 case FD_CLOSE: | |
| 456 ReportWSAError("WSAAsync:close notify", error, addr_); | |
| 457 Close(); | |
| 458 SignalCloseEvent(this, error); | |
| 459 break; | |
| 460 } | |
| 461 } | |
| 462 | |
| 463 void | |
| 464 Win32Socket::OnDnsNotify(int ip, int error) { | |
| 465 LOG_F(LS_INFO) << "(" << talk_base::SocketAddress::IPToString(ip) | |
| 466 << ", " << error << ")"; | |
| 467 if (error == 0) { | |
| 468 talk_base::SocketAddress address(ip, dns_->port); | |
| 469 sockaddr_in addr; | |
| 470 address.ToSockAddr(&addr); | |
| 471 error = DoConnect(addr); | |
| 472 } else { | |
| 473 Close(); | |
| 474 } | |
| 475 | |
| 476 if (error) { | |
| 477 error_ = error; | |
| 478 SignalCloseEvent(this, error_); | |
| 479 } else { | |
| 480 delete dns_; | |
| 481 dns_ = NULL; | |
| 482 } | |
| 483 } | |
| 484 | |
| 485 int | |
| 486 Win32Socket::GetError() const { | |
| 487 return error_; | |
| 488 } | |
| 489 | |
| 490 void | |
| 491 Win32Socket::SetError(int error) { | |
| 492 error_ = error; | |
| 493 } | |
| 494 | |
| 495 Socket::ConnState | |
| 496 Win32Socket::GetState() const { | |
| 497 return state_; | |
| 498 } | |
| 499 | |
| 500 int | |
| 501 Win32Socket::SetOption(Option opt, int value) { | |
| 502 ASSERT(opt == OPT_DONTFRAGMENT); | |
| 503 value = (value == 0) ? 0 : 1; | |
| 504 return ::setsockopt(socket_, IPPROTO_IP, IP_DONTFRAGMENT, | |
| 505 reinterpret_cast<char*>(&value), sizeof(value)); | |
| 506 } | |
| 507 | |
| 508 int | |
| 509 Win32Socket::Send(const void *pv, size_t cb) { | |
| 510 int sent = ::send(socket_, reinterpret_cast<const char *>(pv), (int)cb, 0); | |
| 511 UpdateLastError(); | |
| 512 return sent; | |
| 513 } | |
| 514 | |
| 515 int | |
| 516 Win32Socket::SendTo(const void *pv, size_t cb, | |
| 517 const talk_base::SocketAddress& addr) { | |
| 518 sockaddr_in saddr; | |
| 519 addr.ToSockAddr(&saddr); | |
| 520 int sent = ::sendto(socket_, reinterpret_cast<const char *>(pv), (int)cb, 0, | |
| 521 (sockaddr*)&saddr, sizeof(saddr)); | |
| 522 UpdateLastError(); | |
| 523 return sent; | |
| 524 } | |
| 525 | |
| 526 int | |
| 527 Win32Socket::Recv(void *pv, size_t cb) { | |
| 528 int received = ::recv(socket_, (char *)pv, (int)cb, 0); | |
| 529 UpdateLastError(); | |
| 530 if (signal_close_ && (received > 0)) { | |
| 531 char ch; | |
| 532 if (::recv(socket_, &ch, 1, MSG_PEEK) <= 0) { | |
| 533 signal_close_ = false; | |
| 534 ::PostMessage(sink_->handle(), WM_SOCKETNOTIFY, | |
| 535 WSAMAKESELECTREPLY(FD_CLOSE, 0), 0); | |
| 536 } | |
| 537 } | |
| 538 return received; | |
| 539 } | |
| 540 | |
| 541 int | |
| 542 Win32Socket::RecvFrom(void *pv, size_t cb, talk_base::SocketAddress *paddr) { | |
| 543 sockaddr_in saddr; | |
| 544 socklen_t cbAddr = sizeof(saddr); | |
| 545 int received = ::recvfrom(socket_, (char *)pv, (int)cb, 0, (sockaddr*)&saddr, | |
| 546 &cbAddr); | |
| 547 UpdateLastError(); | |
| 548 if (received != SOCKET_ERROR) | |
| 549 paddr->FromSockAddr(saddr); | |
| 550 if (signal_close_ && (received > 0)) { | |
| 551 char ch; | |
| 552 if (::recv(socket_, &ch, 1, MSG_PEEK) <= 0) { | |
| 553 signal_close_ = false; | |
| 554 ::PostMessage(sink_->handle(), WM_SOCKETNOTIFY, | |
| 555 WSAMAKESELECTREPLY(FD_CLOSE, 0), 0); | |
| 556 } | |
| 557 } | |
| 558 return received; | |
| 559 } | |
| 560 | |
| 561 int | |
| 562 Win32Socket::Listen(int backlog) { | |
| 563 int err = ::listen(socket_, backlog); | |
| 564 UpdateLastError(); | |
| 565 if (err == 0) | |
| 566 state_ = CS_CONNECTING; | |
| 567 return err; | |
| 568 } | |
| 569 | |
| 570 talk_base::Socket* | |
| 571 Win32Socket::Accept(talk_base::SocketAddress *paddr) { | |
| 572 sockaddr_in saddr; | |
| 573 socklen_t cbAddr = sizeof(saddr); | |
| 574 SOCKET s = ::accept(socket_, (sockaddr*)&saddr, &cbAddr); | |
| 575 UpdateLastError(); | |
| 576 if (s == INVALID_SOCKET) | |
| 577 return NULL; | |
| 578 if (paddr) | |
| 579 paddr->FromSockAddr(saddr); | |
| 580 Win32Socket* socket = new Win32Socket; | |
| 581 if (0 == socket->Attach(s)) | |
| 582 return socket; | |
| 583 delete socket; | |
| 584 return NULL; | |
| 585 } | |
| 586 | |
| 587 int | |
| 588 Win32Socket::Close() { | |
| 589 int err = 0; | |
| 590 if (socket_ != INVALID_SOCKET) { | |
| 591 err = ::closesocket(socket_); | |
| 592 socket_ = INVALID_SOCKET; | |
| 593 signal_close_ = false; | |
| 594 UpdateLastError(); | |
| 595 } | |
| 596 if (dns_) { | |
| 597 WSACancelAsyncRequest(dns_->handle); | |
| 598 delete dns_; | |
| 599 dns_ = NULL; | |
| 600 } | |
| 601 if (sink_) { | |
| 602 sink_->Dispose(); | |
| 603 sink_ = NULL; | |
| 604 } | |
| 605 memset(&addr_, 0, sizeof(addr_)); // no longer connected, zero ip/port | |
| 606 state_ = CS_CLOSED; | |
| 607 return err; | |
| 608 } | |
| 609 | |
| 610 int | |
| 611 Win32Socket::EstimateMTU(uint16* mtu) { | |
| 612 talk_base::SocketAddress addr = GetRemoteAddress(); | |
| 613 if (addr.IsAny()) { | |
| 614 error_ = ENOTCONN; | |
| 615 return -1; | |
| 616 } | |
| 617 | |
| 618 talk_base::WinPing ping; | |
| 619 if (!ping.IsValid()) { | |
| 620 error_ = EINVAL; // can't think of a better error ID | |
| 621 return -1; | |
| 622 } | |
| 623 | |
| 624 for (int level = 0; PACKET_MAXIMUMS[level + 1] > 0; ++level) { | |
| 625 int32 size = PACKET_MAXIMUMS[level] - IP_HEADER_SIZE - ICMP_HEADER_SIZE; | |
| 626 talk_base::WinPing::PingResult result = | |
| 627 ping.Ping(addr.ip(), size, 0, 1, false); | |
| 628 if (result == talk_base::WinPing::PING_FAIL) { | |
| 629 error_ = EINVAL; // can't think of a better error ID | |
| 630 return -1; | |
| 631 } | |
| 632 if (result != talk_base::WinPing::PING_TOO_LARGE) { | |
| 633 *mtu = PACKET_MAXIMUMS[level]; | |
| 634 return 0; | |
| 635 } | |
| 636 } | |
| 637 | |
| 638 ASSERT(false); | |
| 639 return 0; | |
| 640 } | |
| 641 | |
| 642 bool | |
| 643 Win32Socket::Create(long events) { | |
| 644 ASSERT(NULL == sink_); | |
| 645 | |
| 646 if (INVALID_SOCKET == socket_) { | |
| 647 socket_ = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, NULL, 0); | |
| 648 if (socket_ == INVALID_SOCKET) { | |
| 649 UpdateLastError(); | |
| 650 return false; | |
| 651 } | |
| 652 } | |
| 653 | |
| 654 // Create window | |
| 655 sink_ = new EventSink(this); | |
| 656 sink_->Create(NULL, L"EventSink", 0, 0, 0, 0, 10, 10); | |
| 657 | |
| 658 // start the async select | |
| 659 if (WSAAsyncSelect(socket_, sink_->handle(), WM_SOCKETNOTIFY, events) | |
| 660 == SOCKET_ERROR) { | |
| 661 UpdateLastError(); | |
| 662 Close(); | |
| 663 return false; | |
| 664 } | |
| 665 | |
| 666 return true; | |
| 667 } | |
| 668 | |
| 669 void | |
| 670 Win32Socket::UpdateLastError() { | |
| 671 error_ = WSAGetLastError(); | |
| 672 } | |
| 673 | |
| 674 /////////////////////////////////////////////////////////////////////////////// | |
| 675 // Win32SocketServer | |
| 676 /////////////////////////////////////////////////////////////////////////////// | |
| 677 | |
| 678 static UINT s_wm_wakeup_id; | |
| 679 | |
| 680 LRESULT CALLBACK DummyWndProc(HWND hwnd, UINT wm, WPARAM wp, LPARAM lp); | |
| 681 | |
| 682 // A socket server that provides cricket base services on top of a win32 gui thr
ead | |
| 683 | |
| 684 Win32SocketServer::Win32SocketServer(MessageQueue *message_queue) { | |
| 685 if (s_wm_wakeup_id == 0) | |
| 686 s_wm_wakeup_id = RegisterWindowMessage(L"WM_WAKEUP"); | |
| 687 message_queue_ = message_queue; | |
| 688 hwnd_ = NULL; | |
| 689 CreateDummyWindow(); | |
| 690 } | |
| 691 | |
| 692 Win32SocketServer::~Win32SocketServer() { | |
| 693 if (hwnd_ != NULL) { | |
| 694 KillTimer(hwnd_, 1); | |
| 695 ::DestroyWindow(hwnd_); | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 Socket* Win32SocketServer::CreateSocket(int type) { | |
| 700 ASSERT(SOCK_STREAM == type); | |
| 701 return new Win32Socket; | |
| 702 } | |
| 703 | |
| 704 AsyncSocket* Win32SocketServer::CreateAsyncSocket(int type) { | |
| 705 ASSERT(SOCK_STREAM == type); | |
| 706 return new Win32Socket; | |
| 707 } | |
| 708 | |
| 709 bool Win32SocketServer::Wait(int cms, bool process_io) { | |
| 710 ASSERT(!process_io || (cms == 0)); // Should only be used for Thread::Send, o
r in Pump, below | |
| 711 if (cms == -1) { | |
| 712 MSG msg; | |
| 713 GetMessage(&msg, NULL, s_wm_wakeup_id, s_wm_wakeup_id); | |
| 714 } else if (cms != 0) { | |
| 715 Sleep(cms); | |
| 716 } | |
| 717 return true; | |
| 718 } | |
| 719 | |
| 720 void Win32SocketServer::WakeUp() { | |
| 721 // Always post for every wakeup, so there are no | |
| 722 // critical sections | |
| 723 if (hwnd_ != NULL) | |
| 724 PostMessage(hwnd_, s_wm_wakeup_id, 0, 0); | |
| 725 } | |
| 726 | |
| 727 void Win32SocketServer::Pump() { | |
| 728 // Process messages | |
| 729 Message msg; | |
| 730 while (message_queue_->Get(&msg, 0)) | |
| 731 message_queue_->Dispatch(&msg); | |
| 732 | |
| 733 // Anything remaining? | |
| 734 int delay = message_queue_->GetDelay(); | |
| 735 if (delay == -1) { | |
| 736 KillTimer(hwnd_, 1); | |
| 737 } else { | |
| 738 SetTimer(hwnd_, 1, delay, NULL); | |
| 739 } | |
| 740 } | |
| 741 | |
| 742 void Win32SocketServer::CreateDummyWindow() | |
| 743 { | |
| 744 static bool s_registered; | |
| 745 if (!s_registered) { | |
| 746 ::WNDCLASSW wc; | |
| 747 memset(&wc, 0, sizeof(wc)); | |
| 748 wc.cbWndExtra = sizeof(this); | |
| 749 wc.lpszClassName = L"Dummy"; | |
| 750 wc.lpfnWndProc = DummyWndProc; | |
| 751 ::RegisterClassW(&wc); | |
| 752 s_registered = true; | |
| 753 } | |
| 754 | |
| 755 hwnd_ = ::CreateWindowW(L"Dummy", L"", 0, 0, 0, 0, 0, NULL, NULL, NULL, NULL); | |
| 756 SetWindowLong(hwnd_, GWL_USERDATA, (LONG)(LONG_PTR)this); | |
| 757 } | |
| 758 | |
| 759 LRESULT CALLBACK DummyWndProc(HWND hwnd, UINT wm, WPARAM wp, LPARAM lp) | |
| 760 { | |
| 761 if (wm == s_wm_wakeup_id || (wm == WM_TIMER && wp == 1)) { | |
| 762 Win32SocketServer *ss = (Win32SocketServer *)(LONG_PTR)GetWindowLong(hwnd, G
WL_USERDATA); | |
| 763 ss->Pump(); | |
| 764 return 0; | |
| 765 } | |
| 766 return ::DefWindowProc(hwnd, wm, wp, lp); | |
| 767 } | |
| 768 | |
| 769 } // namespace talk_base | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1110007:
Removed win32socketserver and its use in mediator_thread_impl.cc. (Closed)
