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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 "net/udp/udp_socket_posix.h" | |
| 6 | |
| 7 #include <errno.h> | |
| 8 #include <fcntl.h> | |
| 9 #include <net/if.h> | |
| 10 #include <netdb.h> | |
| 11 #include <netinet/in.h> | |
| 12 #include <sys/ioctl.h> | |
| 13 #include <sys/socket.h> | |
| 14 | |
| 15 #include "base/callback.h" | |
| 16 #include "base/debug/alias.h" | |
| 17 #include "base/files/file_util.h" | |
| 18 #include "base/logging.h" | |
| 19 #include "base/message_loop/message_loop.h" | |
| 20 #include "base/metrics/histogram_macros.h" | |
| 21 #include "base/posix/eintr_wrapper.h" | |
| 22 #include "base/rand_util.h" | |
| 23 #include "base/trace_event/trace_event.h" | |
| 24 #include "net/base/io_buffer.h" | |
| 25 #include "net/base/ip_address.h" | |
| 26 #include "net/base/ip_endpoint.h" | |
| 27 #include "net/base/net_errors.h" | |
| 28 #include "net/base/network_activity_monitor.h" | |
| 29 #include "net/base/sockaddr_storage.h" | |
| 30 #include "net/log/net_log.h" | |
| 31 #include "net/log/net_log_event_type.h" | |
| 32 #include "net/log/net_log_source.h" | |
| 33 #include "net/log/net_log_source_type.h" | |
| 34 #include "net/socket/socket_descriptor.h" | |
| 35 #include "net/udp/udp_net_log_parameters.h" | |
| 36 | |
| 37 #if defined(OS_ANDROID) | |
| 38 #include <dlfcn.h> | |
| 39 // This was added in Lollipop to dlfcn.h | |
| 40 #define RTLD_NOLOAD 4 | |
| 41 #include "base/android/build_info.h" | |
| 42 #include "base/native_library.h" | |
| 43 #include "base/strings/utf_string_conversions.h" | |
| 44 #endif | |
| 45 | |
| 46 namespace net { | |
| 47 | |
| 48 namespace { | |
| 49 | |
| 50 const int kBindRetries = 10; | |
| 51 const int kPortStart = 1024; | |
| 52 const int kPortEnd = 65535; | |
| 53 | |
| 54 #if defined(OS_MACOSX) | |
| 55 | |
| 56 // Returns IPv4 address in network order. | |
| 57 int GetIPv4AddressFromIndex(int socket, uint32_t index, uint32_t* address) { | |
| 58 if (!index) { | |
| 59 *address = htonl(INADDR_ANY); | |
| 60 return OK; | |
| 61 } | |
| 62 ifreq ifr; | |
| 63 ifr.ifr_addr.sa_family = AF_INET; | |
| 64 if (!if_indextoname(index, ifr.ifr_name)) | |
| 65 return MapSystemError(errno); | |
| 66 int rv = ioctl(socket, SIOCGIFADDR, &ifr); | |
| 67 if (rv == -1) | |
| 68 return MapSystemError(errno); | |
| 69 *address = reinterpret_cast<sockaddr_in*>(&ifr.ifr_addr)->sin_addr.s_addr; | |
| 70 return OK; | |
| 71 } | |
| 72 | |
| 73 #endif // OS_MACOSX | |
| 74 | |
| 75 } // namespace | |
| 76 | |
| 77 UDPSocketPosix::UDPSocketPosix(DatagramSocket::BindType bind_type, | |
| 78 const RandIntCallback& rand_int_cb, | |
| 79 net::NetLog* net_log, | |
| 80 const net::NetLogSource& source) | |
| 81 : socket_(kInvalidSocket), | |
| 82 addr_family_(0), | |
| 83 is_connected_(false), | |
| 84 socket_options_(SOCKET_OPTION_MULTICAST_LOOP), | |
| 85 multicast_interface_(0), | |
| 86 multicast_time_to_live_(1), | |
| 87 bind_type_(bind_type), | |
| 88 rand_int_cb_(rand_int_cb), | |
| 89 read_watcher_(this), | |
| 90 write_watcher_(this), | |
| 91 read_buf_len_(0), | |
| 92 recv_from_address_(NULL), | |
| 93 write_buf_len_(0), | |
| 94 net_log_(NetLogWithSource::Make(net_log, NetLogSourceType::UDP_SOCKET)), | |
| 95 bound_network_(NetworkChangeNotifier::kInvalidNetworkHandle) { | |
| 96 net_log_.BeginEvent(NetLogEventType::SOCKET_ALIVE, | |
| 97 source.ToEventParametersCallback()); | |
| 98 if (bind_type == DatagramSocket::RANDOM_BIND) | |
| 99 DCHECK(!rand_int_cb.is_null()); | |
| 100 } | |
| 101 | |
| 102 UDPSocketPosix::~UDPSocketPosix() { | |
| 103 Close(); | |
| 104 net_log_.EndEvent(NetLogEventType::SOCKET_ALIVE); | |
| 105 } | |
| 106 | |
| 107 int UDPSocketPosix::Open(AddressFamily address_family) { | |
| 108 DCHECK(CalledOnValidThread()); | |
| 109 DCHECK_EQ(socket_, kInvalidSocket); | |
| 110 | |
| 111 addr_family_ = ConvertAddressFamily(address_family); | |
| 112 socket_ = CreatePlatformSocket(addr_family_, SOCK_DGRAM, 0); | |
| 113 if (socket_ == kInvalidSocket) | |
| 114 return MapSystemError(errno); | |
| 115 if (!base::SetNonBlocking(socket_)) { | |
| 116 const int err = MapSystemError(errno); | |
| 117 Close(); | |
| 118 return err; | |
| 119 } | |
| 120 return OK; | |
| 121 } | |
| 122 | |
| 123 void UDPSocketPosix::Close() { | |
| 124 DCHECK(CalledOnValidThread()); | |
| 125 | |
| 126 if (socket_ == kInvalidSocket) | |
| 127 return; | |
| 128 | |
| 129 // Zero out any pending read/write callback state. | |
| 130 read_buf_ = NULL; | |
| 131 read_buf_len_ = 0; | |
| 132 read_callback_.Reset(); | |
| 133 recv_from_address_ = NULL; | |
| 134 write_buf_ = NULL; | |
| 135 write_buf_len_ = 0; | |
| 136 write_callback_.Reset(); | |
| 137 send_to_address_.reset(); | |
| 138 | |
| 139 bool ok = read_socket_watcher_.StopWatchingFileDescriptor(); | |
| 140 DCHECK(ok); | |
| 141 ok = write_socket_watcher_.StopWatchingFileDescriptor(); | |
| 142 DCHECK(ok); | |
| 143 | |
| 144 PCHECK(IGNORE_EINTR(close(socket_)) == 0); | |
| 145 | |
| 146 socket_ = kInvalidSocket; | |
| 147 addr_family_ = 0; | |
| 148 is_connected_ = false; | |
| 149 } | |
| 150 | |
| 151 int UDPSocketPosix::GetPeerAddress(IPEndPoint* address) const { | |
| 152 DCHECK(CalledOnValidThread()); | |
| 153 DCHECK(address); | |
| 154 if (!is_connected()) | |
| 155 return ERR_SOCKET_NOT_CONNECTED; | |
| 156 | |
| 157 if (!remote_address_.get()) { | |
| 158 SockaddrStorage storage; | |
| 159 if (getpeername(socket_, storage.addr, &storage.addr_len)) | |
| 160 return MapSystemError(errno); | |
| 161 std::unique_ptr<IPEndPoint> address(new IPEndPoint()); | |
| 162 if (!address->FromSockAddr(storage.addr, storage.addr_len)) | |
| 163 return ERR_ADDRESS_INVALID; | |
| 164 remote_address_.reset(address.release()); | |
| 165 } | |
| 166 | |
| 167 *address = *remote_address_; | |
| 168 return OK; | |
| 169 } | |
| 170 | |
| 171 int UDPSocketPosix::GetLocalAddress(IPEndPoint* address) const { | |
| 172 DCHECK(CalledOnValidThread()); | |
| 173 DCHECK(address); | |
| 174 if (!is_connected()) | |
| 175 return ERR_SOCKET_NOT_CONNECTED; | |
| 176 | |
| 177 if (!local_address_.get()) { | |
| 178 SockaddrStorage storage; | |
| 179 if (getsockname(socket_, storage.addr, &storage.addr_len)) | |
| 180 return MapSystemError(errno); | |
| 181 std::unique_ptr<IPEndPoint> address(new IPEndPoint()); | |
| 182 if (!address->FromSockAddr(storage.addr, storage.addr_len)) | |
| 183 return ERR_ADDRESS_INVALID; | |
| 184 local_address_.reset(address.release()); | |
| 185 net_log_.AddEvent( | |
| 186 NetLogEventType::UDP_LOCAL_ADDRESS, | |
| 187 CreateNetLogUDPConnectCallback(local_address_.get(), bound_network_)); | |
| 188 } | |
| 189 | |
| 190 *address = *local_address_; | |
| 191 return OK; | |
| 192 } | |
| 193 | |
| 194 int UDPSocketPosix::Read(IOBuffer* buf, | |
| 195 int buf_len, | |
| 196 const CompletionCallback& callback) { | |
| 197 return RecvFrom(buf, buf_len, NULL, callback); | |
| 198 } | |
| 199 | |
| 200 int UDPSocketPosix::RecvFrom(IOBuffer* buf, | |
| 201 int buf_len, | |
| 202 IPEndPoint* address, | |
| 203 const CompletionCallback& callback) { | |
| 204 DCHECK(CalledOnValidThread()); | |
| 205 DCHECK_NE(kInvalidSocket, socket_); | |
| 206 CHECK(read_callback_.is_null()); | |
| 207 DCHECK(!recv_from_address_); | |
| 208 DCHECK(!callback.is_null()); // Synchronous operation not supported | |
| 209 DCHECK_GT(buf_len, 0); | |
| 210 | |
| 211 int nread = InternalRecvFrom(buf, buf_len, address); | |
| 212 if (nread != ERR_IO_PENDING) | |
| 213 return nread; | |
| 214 | |
| 215 if (!base::MessageLoopForIO::current()->WatchFileDescriptor( | |
| 216 socket_, true, base::MessageLoopForIO::WATCH_READ, | |
| 217 &read_socket_watcher_, &read_watcher_)) { | |
| 218 PLOG(ERROR) << "WatchFileDescriptor failed on read"; | |
| 219 int result = MapSystemError(errno); | |
| 220 LogRead(result, NULL, 0, NULL); | |
| 221 return result; | |
| 222 } | |
| 223 | |
| 224 read_buf_ = buf; | |
| 225 read_buf_len_ = buf_len; | |
| 226 recv_from_address_ = address; | |
| 227 read_callback_ = callback; | |
| 228 return ERR_IO_PENDING; | |
| 229 } | |
| 230 | |
| 231 int UDPSocketPosix::Write(IOBuffer* buf, | |
| 232 int buf_len, | |
| 233 const CompletionCallback& callback) { | |
| 234 return SendToOrWrite(buf, buf_len, NULL, callback); | |
| 235 } | |
| 236 | |
| 237 int UDPSocketPosix::SendTo(IOBuffer* buf, | |
| 238 int buf_len, | |
| 239 const IPEndPoint& address, | |
| 240 const CompletionCallback& callback) { | |
| 241 return SendToOrWrite(buf, buf_len, &address, callback); | |
| 242 } | |
| 243 | |
| 244 int UDPSocketPosix::SendToOrWrite(IOBuffer* buf, | |
| 245 int buf_len, | |
| 246 const IPEndPoint* address, | |
| 247 const CompletionCallback& callback) { | |
| 248 DCHECK(CalledOnValidThread()); | |
| 249 DCHECK_NE(kInvalidSocket, socket_); | |
| 250 CHECK(write_callback_.is_null()); | |
| 251 DCHECK(!callback.is_null()); // Synchronous operation not supported | |
| 252 DCHECK_GT(buf_len, 0); | |
| 253 | |
| 254 int result = InternalSendTo(buf, buf_len, address); | |
| 255 if (result != ERR_IO_PENDING) | |
| 256 return result; | |
| 257 | |
| 258 if (!base::MessageLoopForIO::current()->WatchFileDescriptor( | |
| 259 socket_, true, base::MessageLoopForIO::WATCH_WRITE, | |
| 260 &write_socket_watcher_, &write_watcher_)) { | |
| 261 DVLOG(1) << "WatchFileDescriptor failed on write, errno " << errno; | |
| 262 int result = MapSystemError(errno); | |
| 263 LogWrite(result, NULL, NULL); | |
| 264 return result; | |
| 265 } | |
| 266 | |
| 267 write_buf_ = buf; | |
| 268 write_buf_len_ = buf_len; | |
| 269 DCHECK(!send_to_address_.get()); | |
| 270 if (address) { | |
| 271 send_to_address_.reset(new IPEndPoint(*address)); | |
| 272 } | |
| 273 write_callback_ = callback; | |
| 274 return ERR_IO_PENDING; | |
| 275 } | |
| 276 | |
| 277 int UDPSocketPosix::Connect(const IPEndPoint& address) { | |
| 278 DCHECK_NE(socket_, kInvalidSocket); | |
| 279 net_log_.BeginEvent(NetLogEventType::UDP_CONNECT, | |
| 280 CreateNetLogUDPConnectCallback(&address, bound_network_)); | |
| 281 int rv = InternalConnect(address); | |
| 282 net_log_.EndEventWithNetErrorCode(NetLogEventType::UDP_CONNECT, rv); | |
| 283 is_connected_ = (rv == OK); | |
| 284 return rv; | |
| 285 } | |
| 286 | |
| 287 int UDPSocketPosix::InternalConnect(const IPEndPoint& address) { | |
| 288 DCHECK(CalledOnValidThread()); | |
| 289 DCHECK(!is_connected()); | |
| 290 DCHECK(!remote_address_.get()); | |
| 291 | |
| 292 int rv = 0; | |
| 293 if (bind_type_ == DatagramSocket::RANDOM_BIND) { | |
| 294 // Construct IPAddress of appropriate size (IPv4 or IPv6) of 0s, | |
| 295 // representing INADDR_ANY or in6addr_any. | |
| 296 size_t addr_size = address.GetSockAddrFamily() == AF_INET | |
| 297 ? IPAddress::kIPv4AddressSize | |
| 298 : IPAddress::kIPv6AddressSize; | |
| 299 rv = RandomBind(IPAddress::AllZeros(addr_size)); | |
| 300 } | |
| 301 // else connect() does the DatagramSocket::DEFAULT_BIND | |
| 302 | |
| 303 if (rv < 0) { | |
| 304 UMA_HISTOGRAM_SPARSE_SLOWLY("Net.UdpSocketRandomBindErrorCode", -rv); | |
| 305 return rv; | |
| 306 } | |
| 307 | |
| 308 SockaddrStorage storage; | |
| 309 if (!address.ToSockAddr(storage.addr, &storage.addr_len)) | |
| 310 return ERR_ADDRESS_INVALID; | |
| 311 | |
| 312 rv = HANDLE_EINTR(connect(socket_, storage.addr, storage.addr_len)); | |
| 313 if (rv < 0) | |
| 314 return MapSystemError(errno); | |
| 315 | |
| 316 remote_address_.reset(new IPEndPoint(address)); | |
| 317 return rv; | |
| 318 } | |
| 319 | |
| 320 int UDPSocketPosix::Bind(const IPEndPoint& address) { | |
| 321 DCHECK_NE(socket_, kInvalidSocket); | |
| 322 DCHECK(CalledOnValidThread()); | |
| 323 DCHECK(!is_connected()); | |
| 324 | |
| 325 int rv = SetMulticastOptions(); | |
| 326 if (rv < 0) | |
| 327 return rv; | |
| 328 | |
| 329 rv = DoBind(address); | |
| 330 if (rv < 0) | |
| 331 return rv; | |
| 332 | |
| 333 is_connected_ = true; | |
| 334 local_address_.reset(); | |
| 335 return rv; | |
| 336 } | |
| 337 | |
| 338 int UDPSocketPosix::BindToNetwork( | |
| 339 NetworkChangeNotifier::NetworkHandle network) { | |
| 340 DCHECK_NE(socket_, kInvalidSocket); | |
| 341 DCHECK(CalledOnValidThread()); | |
| 342 DCHECK(!is_connected()); | |
| 343 if (network == NetworkChangeNotifier::kInvalidNetworkHandle) | |
| 344 return ERR_INVALID_ARGUMENT; | |
| 345 #if defined(OS_ANDROID) | |
| 346 // Android prior to Lollipop didn't have support for binding sockets to | |
| 347 // networks. | |
| 348 if (base::android::BuildInfo::GetInstance()->sdk_int() < | |
| 349 base::android::SDK_VERSION_LOLLIPOP) { | |
| 350 return ERR_NOT_IMPLEMENTED; | |
| 351 } | |
| 352 int rv; | |
| 353 // On Android M and newer releases use supported NDK API. On Android L use | |
| 354 // setNetworkForSocket from libnetd_client.so. | |
| 355 if (base::android::BuildInfo::GetInstance()->sdk_int() >= | |
| 356 base::android::SDK_VERSION_MARSHMALLOW) { | |
| 357 // See declaration of android_setsocknetwork() here: | |
| 358 // http://androidxref.com/6.0.0_r1/xref/development/ndk/platforms/android-M/
include/android/multinetwork.h#65 | |
| 359 // Function cannot be called directly as it will cause app to fail to load | |
| 360 // on pre-marshmallow devices. | |
| 361 typedef int (*MarshmallowSetNetworkForSocket)(int64_t netId, int socketFd); | |
| 362 static MarshmallowSetNetworkForSocket marshmallowSetNetworkForSocket; | |
| 363 // This is racy, but all racers should come out with the same answer so it | |
| 364 // shouldn't matter. | |
| 365 if (!marshmallowSetNetworkForSocket) { | |
| 366 base::FilePath file(base::GetNativeLibraryName("android")); | |
| 367 void* dl = dlopen(file.value().c_str(), RTLD_NOW); | |
| 368 marshmallowSetNetworkForSocket = | |
| 369 reinterpret_cast<MarshmallowSetNetworkForSocket>( | |
| 370 dlsym(dl, "android_setsocknetwork")); | |
| 371 } | |
| 372 if (!marshmallowSetNetworkForSocket) | |
| 373 return ERR_NOT_IMPLEMENTED; | |
| 374 rv = marshmallowSetNetworkForSocket(network, socket_); | |
| 375 if (rv) | |
| 376 rv = errno; | |
| 377 } else { | |
| 378 // NOTE(pauljensen): This does rely on Android implementation details, but | |
| 379 // they won't change because Lollipop is already released. | |
| 380 typedef int (*LollipopSetNetworkForSocket)(unsigned netId, int socketFd); | |
| 381 static LollipopSetNetworkForSocket lollipopSetNetworkForSocket; | |
| 382 // This is racy, but all racers should come out with the same answer so it | |
| 383 // shouldn't matter. | |
| 384 if (!lollipopSetNetworkForSocket) { | |
| 385 // Android's netd client library should always be loaded in our address | |
| 386 // space as it shims socket() which was used to create |socket_|. | |
| 387 base::FilePath file(base::GetNativeLibraryName("netd_client")); | |
| 388 // Use RTLD_NOW to match Android's prior loading of the library: | |
| 389 // http://androidxref.com/6.0.0_r5/xref/bionic/libc/bionic/NetdClient.cpp#
37 | |
| 390 // Use RTLD_NOLOAD to assert that the library is already loaded and | |
| 391 // avoid doing any disk IO. | |
| 392 void* dl = dlopen(file.value().c_str(), RTLD_NOW | RTLD_NOLOAD); | |
| 393 lollipopSetNetworkForSocket = | |
| 394 reinterpret_cast<LollipopSetNetworkForSocket>( | |
| 395 dlsym(dl, "setNetworkForSocket")); | |
| 396 } | |
| 397 if (!lollipopSetNetworkForSocket) | |
| 398 return ERR_NOT_IMPLEMENTED; | |
| 399 rv = -lollipopSetNetworkForSocket(network, socket_); | |
| 400 } | |
| 401 // If |network| has since disconnected, |rv| will be ENONET. Surface this as | |
| 402 // ERR_NETWORK_CHANGED, rather than MapSystemError(ENONET) which gives back | |
| 403 // the less descriptive ERR_FAILED. | |
| 404 if (rv == ENONET) | |
| 405 return ERR_NETWORK_CHANGED; | |
| 406 if (rv == 0) | |
| 407 bound_network_ = network; | |
| 408 return MapSystemError(rv); | |
| 409 #else | |
| 410 NOTIMPLEMENTED(); | |
| 411 return ERR_NOT_IMPLEMENTED; | |
| 412 #endif | |
| 413 } | |
| 414 | |
| 415 int UDPSocketPosix::SetReceiveBufferSize(int32_t size) { | |
| 416 DCHECK_NE(socket_, kInvalidSocket); | |
| 417 DCHECK(CalledOnValidThread()); | |
| 418 int rv = setsockopt(socket_, SOL_SOCKET, SO_RCVBUF, | |
| 419 reinterpret_cast<const char*>(&size), sizeof(size)); | |
| 420 return rv == 0 ? OK : MapSystemError(errno); | |
| 421 } | |
| 422 | |
| 423 int UDPSocketPosix::SetSendBufferSize(int32_t size) { | |
| 424 DCHECK_NE(socket_, kInvalidSocket); | |
| 425 DCHECK(CalledOnValidThread()); | |
| 426 int rv = setsockopt(socket_, SOL_SOCKET, SO_SNDBUF, | |
| 427 reinterpret_cast<const char*>(&size), sizeof(size)); | |
| 428 return rv == 0 ? OK : MapSystemError(errno); | |
| 429 } | |
| 430 | |
| 431 int UDPSocketPosix::SetDoNotFragment() { | |
| 432 DCHECK_NE(socket_, kInvalidSocket); | |
| 433 DCHECK(CalledOnValidThread()); | |
| 434 | |
| 435 #if !defined(IP_PMTUDISC_DO) | |
| 436 return ERR_NOT_IMPLEMENTED; | |
| 437 #else | |
| 438 if (addr_family_ == AF_INET6) { | |
| 439 int val = IPV6_PMTUDISC_DO; | |
| 440 if (setsockopt(socket_, IPPROTO_IPV6, IPV6_MTU_DISCOVER, &val, | |
| 441 sizeof(val)) != 0) { | |
| 442 return MapSystemError(errno); | |
| 443 } | |
| 444 | |
| 445 int v6_only = false; | |
| 446 socklen_t v6_only_len = sizeof(v6_only); | |
| 447 if (getsockopt(socket_, IPPROTO_IPV6, IPV6_V6ONLY, &v6_only, | |
| 448 &v6_only_len) != 0) { | |
| 449 return MapSystemError(errno); | |
| 450 } | |
| 451 | |
| 452 if (v6_only) | |
| 453 return OK; | |
| 454 } | |
| 455 | |
| 456 int val = IP_PMTUDISC_DO; | |
| 457 int rv = setsockopt(socket_, IPPROTO_IP, IP_MTU_DISCOVER, &val, sizeof(val)); | |
| 458 return rv == 0 ? OK : MapSystemError(errno); | |
| 459 #endif | |
| 460 } | |
| 461 | |
| 462 int UDPSocketPosix::AllowAddressReuse() { | |
| 463 DCHECK_NE(socket_, kInvalidSocket); | |
| 464 DCHECK(CalledOnValidThread()); | |
| 465 DCHECK(!is_connected()); | |
| 466 int true_value = 1; | |
| 467 int rv = setsockopt( | |
| 468 socket_, SOL_SOCKET, SO_REUSEADDR, &true_value, sizeof(true_value)); | |
| 469 return rv == 0 ? OK : MapSystemError(errno); | |
| 470 } | |
| 471 | |
| 472 int UDPSocketPosix::SetBroadcast(bool broadcast) { | |
| 473 DCHECK_NE(socket_, kInvalidSocket); | |
| 474 DCHECK(CalledOnValidThread()); | |
| 475 int value = broadcast ? 1 : 0; | |
| 476 int rv; | |
| 477 #if defined(OS_MACOSX) | |
| 478 // SO_REUSEPORT on OSX permits multiple processes to each receive | |
| 479 // UDP multicast or broadcast datagrams destined for the bound | |
| 480 // port. | |
| 481 // This is only being set on OSX because its behavior is platform dependent | |
| 482 // and we are playing it safe by only setting it on platforms where things | |
| 483 // break. | |
| 484 rv = setsockopt(socket_, SOL_SOCKET, SO_REUSEPORT, &value, sizeof(value)); | |
| 485 if (rv != 0) | |
| 486 return MapSystemError(errno); | |
| 487 #endif // defined(OS_MACOSX) | |
| 488 rv = setsockopt(socket_, SOL_SOCKET, SO_BROADCAST, &value, sizeof(value)); | |
| 489 | |
| 490 return rv == 0 ? OK : MapSystemError(errno); | |
| 491 } | |
| 492 | |
| 493 void UDPSocketPosix::ReadWatcher::OnFileCanReadWithoutBlocking(int) { | |
| 494 TRACE_EVENT0("net", | |
| 495 "UDPSocketPosix::ReadWatcher::OnFileCanReadWithoutBlocking"); | |
| 496 if (!socket_->read_callback_.is_null()) | |
| 497 socket_->DidCompleteRead(); | |
| 498 } | |
| 499 | |
| 500 void UDPSocketPosix::WriteWatcher::OnFileCanWriteWithoutBlocking(int) { | |
| 501 if (!socket_->write_callback_.is_null()) | |
| 502 socket_->DidCompleteWrite(); | |
| 503 } | |
| 504 | |
| 505 void UDPSocketPosix::DoReadCallback(int rv) { | |
| 506 DCHECK_NE(rv, ERR_IO_PENDING); | |
| 507 DCHECK(!read_callback_.is_null()); | |
| 508 | |
| 509 // since Run may result in Read being called, clear read_callback_ up front. | |
| 510 CompletionCallback c = read_callback_; | |
| 511 read_callback_.Reset(); | |
| 512 c.Run(rv); | |
| 513 } | |
| 514 | |
| 515 void UDPSocketPosix::DoWriteCallback(int rv) { | |
| 516 DCHECK_NE(rv, ERR_IO_PENDING); | |
| 517 DCHECK(!write_callback_.is_null()); | |
| 518 | |
| 519 // since Run may result in Write being called, clear write_callback_ up front. | |
| 520 CompletionCallback c = write_callback_; | |
| 521 write_callback_.Reset(); | |
| 522 c.Run(rv); | |
| 523 } | |
| 524 | |
| 525 void UDPSocketPosix::DidCompleteRead() { | |
| 526 int result = | |
| 527 InternalRecvFrom(read_buf_.get(), read_buf_len_, recv_from_address_); | |
| 528 if (result != ERR_IO_PENDING) { | |
| 529 read_buf_ = NULL; | |
| 530 read_buf_len_ = 0; | |
| 531 recv_from_address_ = NULL; | |
| 532 bool ok = read_socket_watcher_.StopWatchingFileDescriptor(); | |
| 533 DCHECK(ok); | |
| 534 DoReadCallback(result); | |
| 535 } | |
| 536 } | |
| 537 | |
| 538 void UDPSocketPosix::LogRead(int result, | |
| 539 const char* bytes, | |
| 540 socklen_t addr_len, | |
| 541 const sockaddr* addr) const { | |
| 542 if (result < 0) { | |
| 543 net_log_.AddEventWithNetErrorCode(NetLogEventType::UDP_RECEIVE_ERROR, | |
| 544 result); | |
| 545 return; | |
| 546 } | |
| 547 | |
| 548 if (net_log_.IsCapturing()) { | |
| 549 DCHECK(addr_len > 0); | |
| 550 DCHECK(addr); | |
| 551 | |
| 552 IPEndPoint address; | |
| 553 bool is_address_valid = address.FromSockAddr(addr, addr_len); | |
| 554 net_log_.AddEvent(NetLogEventType::UDP_BYTES_RECEIVED, | |
| 555 CreateNetLogUDPDataTranferCallback( | |
| 556 result, bytes, is_address_valid ? &address : NULL)); | |
| 557 } | |
| 558 | |
| 559 NetworkActivityMonitor::GetInstance()->IncrementBytesReceived(result); | |
| 560 } | |
| 561 | |
| 562 void UDPSocketPosix::DidCompleteWrite() { | |
| 563 int result = | |
| 564 InternalSendTo(write_buf_.get(), write_buf_len_, send_to_address_.get()); | |
| 565 | |
| 566 if (result != ERR_IO_PENDING) { | |
| 567 write_buf_ = NULL; | |
| 568 write_buf_len_ = 0; | |
| 569 send_to_address_.reset(); | |
| 570 write_socket_watcher_.StopWatchingFileDescriptor(); | |
| 571 DoWriteCallback(result); | |
| 572 } | |
| 573 } | |
| 574 | |
| 575 void UDPSocketPosix::LogWrite(int result, | |
| 576 const char* bytes, | |
| 577 const IPEndPoint* address) const { | |
| 578 if (result < 0) { | |
| 579 net_log_.AddEventWithNetErrorCode(NetLogEventType::UDP_SEND_ERROR, result); | |
| 580 return; | |
| 581 } | |
| 582 | |
| 583 if (net_log_.IsCapturing()) { | |
| 584 net_log_.AddEvent( | |
| 585 NetLogEventType::UDP_BYTES_SENT, | |
| 586 CreateNetLogUDPDataTranferCallback(result, bytes, address)); | |
| 587 } | |
| 588 | |
| 589 NetworkActivityMonitor::GetInstance()->IncrementBytesSent(result); | |
| 590 } | |
| 591 | |
| 592 int UDPSocketPosix::InternalRecvFrom(IOBuffer* buf, | |
| 593 int buf_len, | |
| 594 IPEndPoint* address) { | |
| 595 int bytes_transferred; | |
| 596 int flags = 0; | |
| 597 | |
| 598 SockaddrStorage storage; | |
| 599 | |
| 600 bytes_transferred = | |
| 601 HANDLE_EINTR(recvfrom(socket_, | |
| 602 buf->data(), | |
| 603 buf_len, | |
| 604 flags, | |
| 605 storage.addr, | |
| 606 &storage.addr_len)); | |
| 607 int result; | |
| 608 if (bytes_transferred >= 0) { | |
| 609 result = bytes_transferred; | |
| 610 if (address && !address->FromSockAddr(storage.addr, storage.addr_len)) | |
| 611 result = ERR_ADDRESS_INVALID; | |
| 612 } else { | |
| 613 result = MapSystemError(errno); | |
| 614 } | |
| 615 if (result != ERR_IO_PENDING) | |
| 616 LogRead(result, buf->data(), storage.addr_len, storage.addr); | |
| 617 return result; | |
| 618 } | |
| 619 | |
| 620 int UDPSocketPosix::InternalSendTo(IOBuffer* buf, | |
| 621 int buf_len, | |
| 622 const IPEndPoint* address) { | |
| 623 SockaddrStorage storage; | |
| 624 struct sockaddr* addr = storage.addr; | |
| 625 if (!address) { | |
| 626 addr = NULL; | |
| 627 storage.addr_len = 0; | |
| 628 } else { | |
| 629 if (!address->ToSockAddr(storage.addr, &storage.addr_len)) { | |
| 630 int result = ERR_ADDRESS_INVALID; | |
| 631 LogWrite(result, NULL, NULL); | |
| 632 return result; | |
| 633 } | |
| 634 } | |
| 635 | |
| 636 int result = HANDLE_EINTR(sendto(socket_, | |
| 637 buf->data(), | |
| 638 buf_len, | |
| 639 0, | |
| 640 addr, | |
| 641 storage.addr_len)); | |
| 642 if (result < 0) | |
| 643 result = MapSystemError(errno); | |
| 644 if (result != ERR_IO_PENDING) | |
| 645 LogWrite(result, buf->data(), address); | |
| 646 return result; | |
| 647 } | |
| 648 | |
| 649 int UDPSocketPosix::SetMulticastOptions() { | |
| 650 if (!(socket_options_ & SOCKET_OPTION_MULTICAST_LOOP)) { | |
| 651 int rv; | |
| 652 if (addr_family_ == AF_INET) { | |
| 653 u_char loop = 0; | |
| 654 rv = setsockopt(socket_, IPPROTO_IP, IP_MULTICAST_LOOP, | |
| 655 &loop, sizeof(loop)); | |
| 656 } else { | |
| 657 u_int loop = 0; | |
| 658 rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, | |
| 659 &loop, sizeof(loop)); | |
| 660 } | |
| 661 if (rv < 0) | |
| 662 return MapSystemError(errno); | |
| 663 } | |
| 664 if (multicast_time_to_live_ != IP_DEFAULT_MULTICAST_TTL) { | |
| 665 int rv; | |
| 666 if (addr_family_ == AF_INET) { | |
| 667 u_char ttl = multicast_time_to_live_; | |
| 668 rv = setsockopt(socket_, IPPROTO_IP, IP_MULTICAST_TTL, | |
| 669 &ttl, sizeof(ttl)); | |
| 670 } else { | |
| 671 // Signed integer. -1 to use route default. | |
| 672 int ttl = multicast_time_to_live_; | |
| 673 rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, | |
| 674 &ttl, sizeof(ttl)); | |
| 675 } | |
| 676 if (rv < 0) | |
| 677 return MapSystemError(errno); | |
| 678 } | |
| 679 if (multicast_interface_ != 0) { | |
| 680 switch (addr_family_) { | |
| 681 case AF_INET: { | |
| 682 #if !defined(OS_MACOSX) | |
| 683 ip_mreqn mreq; | |
| 684 mreq.imr_ifindex = multicast_interface_; | |
| 685 mreq.imr_address.s_addr = htonl(INADDR_ANY); | |
| 686 #else | |
| 687 ip_mreq mreq; | |
| 688 int error = GetIPv4AddressFromIndex(socket_, multicast_interface_, | |
| 689 &mreq.imr_interface.s_addr); | |
| 690 if (error != OK) | |
| 691 return error; | |
| 692 #endif | |
| 693 int rv = setsockopt(socket_, IPPROTO_IP, IP_MULTICAST_IF, | |
| 694 reinterpret_cast<const char*>(&mreq), sizeof(mreq)); | |
| 695 if (rv) | |
| 696 return MapSystemError(errno); | |
| 697 break; | |
| 698 } | |
| 699 case AF_INET6: { | |
| 700 uint32_t interface_index = multicast_interface_; | |
| 701 int rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_MULTICAST_IF, | |
| 702 reinterpret_cast<const char*>(&interface_index), | |
| 703 sizeof(interface_index)); | |
| 704 if (rv) | |
| 705 return MapSystemError(errno); | |
| 706 break; | |
| 707 } | |
| 708 default: | |
| 709 NOTREACHED() << "Invalid address family"; | |
| 710 return ERR_ADDRESS_INVALID; | |
| 711 } | |
| 712 } | |
| 713 return OK; | |
| 714 } | |
| 715 | |
| 716 int UDPSocketPosix::DoBind(const IPEndPoint& address) { | |
| 717 SockaddrStorage storage; | |
| 718 if (!address.ToSockAddr(storage.addr, &storage.addr_len)) | |
| 719 return ERR_ADDRESS_INVALID; | |
| 720 int rv = bind(socket_, storage.addr, storage.addr_len); | |
| 721 if (rv == 0) | |
| 722 return OK; | |
| 723 int last_error = errno; | |
| 724 UMA_HISTOGRAM_SPARSE_SLOWLY("Net.UdpSocketBindErrorFromPosix", last_error); | |
| 725 #if defined(OS_CHROMEOS) | |
| 726 if (last_error == EINVAL) | |
| 727 return ERR_ADDRESS_IN_USE; | |
| 728 #elif defined(OS_MACOSX) | |
| 729 if (last_error == EADDRNOTAVAIL) | |
| 730 return ERR_ADDRESS_IN_USE; | |
| 731 #endif | |
| 732 return MapSystemError(last_error); | |
| 733 } | |
| 734 | |
| 735 int UDPSocketPosix::RandomBind(const IPAddress& address) { | |
| 736 DCHECK(bind_type_ == DatagramSocket::RANDOM_BIND && !rand_int_cb_.is_null()); | |
| 737 | |
| 738 for (int i = 0; i < kBindRetries; ++i) { | |
| 739 int rv = DoBind(IPEndPoint(address, | |
| 740 rand_int_cb_.Run(kPortStart, kPortEnd))); | |
| 741 if (rv != ERR_ADDRESS_IN_USE) | |
| 742 return rv; | |
| 743 } | |
| 744 return DoBind(IPEndPoint(address, 0)); | |
| 745 } | |
| 746 | |
| 747 int UDPSocketPosix::JoinGroup(const IPAddress& group_address) const { | |
| 748 DCHECK(CalledOnValidThread()); | |
| 749 if (!is_connected()) | |
| 750 return ERR_SOCKET_NOT_CONNECTED; | |
| 751 | |
| 752 switch (group_address.size()) { | |
| 753 case IPAddress::kIPv4AddressSize: { | |
| 754 if (addr_family_ != AF_INET) | |
| 755 return ERR_ADDRESS_INVALID; | |
| 756 | |
| 757 #if !defined(OS_MACOSX) | |
| 758 ip_mreqn mreq; | |
| 759 mreq.imr_ifindex = multicast_interface_; | |
| 760 mreq.imr_address.s_addr = htonl(INADDR_ANY); | |
| 761 #else | |
| 762 ip_mreq mreq; | |
| 763 int error = GetIPv4AddressFromIndex(socket_, multicast_interface_, | |
| 764 &mreq.imr_interface.s_addr); | |
| 765 if (error != OK) | |
| 766 return error; | |
| 767 #endif | |
| 768 memcpy(&mreq.imr_multiaddr, group_address.bytes().data(), | |
| 769 IPAddress::kIPv4AddressSize); | |
| 770 int rv = setsockopt(socket_, IPPROTO_IP, IP_ADD_MEMBERSHIP, | |
| 771 &mreq, sizeof(mreq)); | |
| 772 if (rv < 0) | |
| 773 return MapSystemError(errno); | |
| 774 return OK; | |
| 775 } | |
| 776 case IPAddress::kIPv6AddressSize: { | |
| 777 if (addr_family_ != AF_INET6) | |
| 778 return ERR_ADDRESS_INVALID; | |
| 779 ipv6_mreq mreq; | |
| 780 mreq.ipv6mr_interface = multicast_interface_; | |
| 781 memcpy(&mreq.ipv6mr_multiaddr, group_address.bytes().data(), | |
| 782 IPAddress::kIPv6AddressSize); | |
| 783 int rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_JOIN_GROUP, | |
| 784 &mreq, sizeof(mreq)); | |
| 785 if (rv < 0) | |
| 786 return MapSystemError(errno); | |
| 787 return OK; | |
| 788 } | |
| 789 default: | |
| 790 NOTREACHED() << "Invalid address family"; | |
| 791 return ERR_ADDRESS_INVALID; | |
| 792 } | |
| 793 } | |
| 794 | |
| 795 int UDPSocketPosix::LeaveGroup(const IPAddress& group_address) const { | |
| 796 DCHECK(CalledOnValidThread()); | |
| 797 | |
| 798 if (!is_connected()) | |
| 799 return ERR_SOCKET_NOT_CONNECTED; | |
| 800 | |
| 801 switch (group_address.size()) { | |
| 802 case IPAddress::kIPv4AddressSize: { | |
| 803 if (addr_family_ != AF_INET) | |
| 804 return ERR_ADDRESS_INVALID; | |
| 805 ip_mreq mreq; | |
| 806 mreq.imr_interface.s_addr = INADDR_ANY; | |
| 807 memcpy(&mreq.imr_multiaddr, group_address.bytes().data(), | |
| 808 IPAddress::kIPv4AddressSize); | |
| 809 int rv = setsockopt(socket_, IPPROTO_IP, IP_DROP_MEMBERSHIP, | |
| 810 &mreq, sizeof(mreq)); | |
| 811 if (rv < 0) | |
| 812 return MapSystemError(errno); | |
| 813 return OK; | |
| 814 } | |
| 815 case IPAddress::kIPv6AddressSize: { | |
| 816 if (addr_family_ != AF_INET6) | |
| 817 return ERR_ADDRESS_INVALID; | |
| 818 ipv6_mreq mreq; | |
| 819 mreq.ipv6mr_interface = 0; // 0 indicates default multicast interface. | |
| 820 memcpy(&mreq.ipv6mr_multiaddr, group_address.bytes().data(), | |
| 821 IPAddress::kIPv6AddressSize); | |
| 822 int rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_LEAVE_GROUP, | |
| 823 &mreq, sizeof(mreq)); | |
| 824 if (rv < 0) | |
| 825 return MapSystemError(errno); | |
| 826 return OK; | |
| 827 } | |
| 828 default: | |
| 829 NOTREACHED() << "Invalid address family"; | |
| 830 return ERR_ADDRESS_INVALID; | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 int UDPSocketPosix::SetMulticastInterface(uint32_t interface_index) { | |
| 835 DCHECK(CalledOnValidThread()); | |
| 836 if (is_connected()) | |
| 837 return ERR_SOCKET_IS_CONNECTED; | |
| 838 multicast_interface_ = interface_index; | |
| 839 return OK; | |
| 840 } | |
| 841 | |
| 842 int UDPSocketPosix::SetMulticastTimeToLive(int time_to_live) { | |
| 843 DCHECK(CalledOnValidThread()); | |
| 844 if (is_connected()) | |
| 845 return ERR_SOCKET_IS_CONNECTED; | |
| 846 | |
| 847 if (time_to_live < 0 || time_to_live > 255) | |
| 848 return ERR_INVALID_ARGUMENT; | |
| 849 multicast_time_to_live_ = time_to_live; | |
| 850 return OK; | |
| 851 } | |
| 852 | |
| 853 int UDPSocketPosix::SetMulticastLoopbackMode(bool loopback) { | |
| 854 DCHECK(CalledOnValidThread()); | |
| 855 if (is_connected()) | |
| 856 return ERR_SOCKET_IS_CONNECTED; | |
| 857 | |
| 858 if (loopback) | |
| 859 socket_options_ |= SOCKET_OPTION_MULTICAST_LOOP; | |
| 860 else | |
| 861 socket_options_ &= ~SOCKET_OPTION_MULTICAST_LOOP; | |
| 862 return OK; | |
| 863 } | |
| 864 | |
| 865 int UDPSocketPosix::SetDiffServCodePoint(DiffServCodePoint dscp) { | |
| 866 if (dscp == DSCP_NO_CHANGE) { | |
| 867 return OK; | |
| 868 } | |
| 869 int rv; | |
| 870 int dscp_and_ecn = dscp << 2; | |
| 871 if (addr_family_ == AF_INET) { | |
| 872 rv = setsockopt(socket_, IPPROTO_IP, IP_TOS, | |
| 873 &dscp_and_ecn, sizeof(dscp_and_ecn)); | |
| 874 } else { | |
| 875 rv = setsockopt(socket_, IPPROTO_IPV6, IPV6_TCLASS, | |
| 876 &dscp_and_ecn, sizeof(dscp_and_ecn)); | |
| 877 } | |
| 878 if (rv < 0) | |
| 879 return MapSystemError(errno); | |
| 880 | |
| 881 return OK; | |
| 882 } | |
| 883 | |
| 884 void UDPSocketPosix::DetachFromThread() { | |
| 885 base::NonThreadSafe::DetachFromThread(); | |
| 886 } | |
| 887 | |
| 888 } // namespace net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2508593002:
net: move udp directory into socket (Closed)
