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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 #if !defined(DART_IO_DISABLED) | |
| 6 | |
| 7 #include "platform/globals.h" | |
| 8 #if defined(HOST_OS_ANDROID) | |
| 9 | |
| 10 #include "bin/socket_base.h" | |
| 11 | |
| 12 #include <errno.h> // NOLINT | |
| 13 #include <netinet/tcp.h> // NOLINT | |
| 14 #include <stdio.h> // NOLINT | |
| 15 #include <stdlib.h> // NOLINT | |
| 16 #include <string.h> // NOLINT | |
| 17 #include <sys/stat.h> // NOLINT | |
| 18 #include <unistd.h> // NOLINT | |
| 19 | |
| 20 #include "bin/fdutils.h" | |
| 21 #include "bin/file.h" | |
| 22 #include "bin/socket_base_android.h" | |
| 23 #include "platform/signal_blocker.h" | |
| 24 | |
| 25 namespace dart { | |
| 26 namespace bin { | |
| 27 | |
| 28 SocketAddress::SocketAddress(struct sockaddr* sa) { | |
| 29 ASSERT(INET6_ADDRSTRLEN >= INET_ADDRSTRLEN); | |
| 30 if (!SocketBase::FormatNumericAddress(*reinterpret_cast<RawAddr*>(sa), | |
| 31 as_string_, INET6_ADDRSTRLEN)) { | |
| 32 as_string_[0] = 0; | |
| 33 } | |
| 34 socklen_t salen = GetAddrLength(*reinterpret_cast<RawAddr*>(sa)); | |
| 35 memmove(reinterpret_cast<void*>(&addr_), sa, salen); | |
| 36 } | |
| 37 | |
| 38 | |
| 39 bool SocketBase::FormatNumericAddress(const RawAddr& addr, | |
| 40 char* address, | |
| 41 int len) { | |
| 42 socklen_t salen = SocketAddress::GetAddrLength(addr); | |
| 43 return (NO_RETRY_EXPECTED(getnameinfo(&addr.addr, salen, address, len, NULL, | |
| 44 0, NI_NUMERICHOST)) == 0); | |
| 45 } | |
| 46 | |
| 47 | |
| 48 bool SocketBase::IsBindError(intptr_t error_number) { | |
| 49 return error_number == EADDRINUSE || error_number == EADDRNOTAVAIL || | |
| 50 error_number == EINVAL; | |
| 51 } | |
| 52 | |
| 53 | |
| 54 intptr_t SocketBase::Available(intptr_t fd) { | |
| 55 return FDUtils::AvailableBytes(fd); | |
| 56 } | |
| 57 | |
| 58 | |
| 59 intptr_t SocketBase::Read(intptr_t fd, void* buffer, intptr_t num_bytes) { | |
| 60 ASSERT(fd >= 0); | |
| 61 ssize_t read_bytes = TEMP_FAILURE_RETRY(read(fd, buffer, num_bytes)); | |
| 62 ASSERT(EAGAIN == EWOULDBLOCK); | |
| 63 if ((read_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 64 // If the read would block we need to retry and therefore return 0 | |
| 65 // as the number of bytes written. | |
| 66 read_bytes = 0; | |
| 67 } | |
| 68 return read_bytes; | |
| 69 } | |
| 70 | |
| 71 | |
| 72 intptr_t SocketBase::RecvFrom(intptr_t fd, | |
| 73 void* buffer, | |
| 74 intptr_t num_bytes, | |
| 75 RawAddr* addr) { | |
| 76 ASSERT(fd >= 0); | |
| 77 socklen_t addr_len = sizeof(addr->ss); | |
| 78 ssize_t read_bytes = TEMP_FAILURE_RETRY( | |
| 79 recvfrom(fd, buffer, num_bytes, 0, &addr->addr, &addr_len)); | |
| 80 if ((read_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 81 // If the read would block we need to retry and therefore return 0 | |
| 82 // as the number of bytes written. | |
| 83 read_bytes = 0; | |
| 84 } | |
| 85 return read_bytes; | |
| 86 } | |
| 87 | |
| 88 | |
| 89 intptr_t SocketBase::Write(intptr_t fd, | |
| 90 const void* buffer, | |
| 91 intptr_t num_bytes) { | |
| 92 ASSERT(fd >= 0); | |
| 93 ssize_t written_bytes = TEMP_FAILURE_RETRY(write(fd, buffer, num_bytes)); | |
| 94 ASSERT(EAGAIN == EWOULDBLOCK); | |
| 95 if ((written_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 96 // If the would block we need to retry and therefore return 0 as | |
| 97 // the number of bytes written. | |
| 98 written_bytes = 0; | |
| 99 } | |
| 100 return written_bytes; | |
| 101 } | |
| 102 | |
| 103 | |
| 104 intptr_t SocketBase::SendTo(intptr_t fd, | |
| 105 const void* buffer, | |
| 106 intptr_t num_bytes, | |
| 107 const RawAddr& addr) { | |
| 108 ASSERT(fd >= 0); | |
| 109 ssize_t written_bytes = | |
| 110 TEMP_FAILURE_RETRY(sendto(fd, buffer, num_bytes, 0, &addr.addr, | |
| 111 SocketAddress::GetAddrLength(addr))); | |
| 112 ASSERT(EAGAIN == EWOULDBLOCK); | |
| 113 if ((written_bytes == -1) && (errno == EWOULDBLOCK)) { | |
| 114 // If the would block we need to retry and therefore return 0 as | |
| 115 // the number of bytes written. | |
| 116 written_bytes = 0; | |
| 117 } | |
| 118 return written_bytes; | |
| 119 } | |
| 120 | |
| 121 | |
| 122 intptr_t SocketBase::GetPort(intptr_t fd) { | |
| 123 ASSERT(fd >= 0); | |
| 124 RawAddr raw; | |
| 125 socklen_t size = sizeof(raw); | |
| 126 if (NO_RETRY_EXPECTED(getsockname(fd, &raw.addr, &size))) { | |
| 127 return 0; | |
| 128 } | |
| 129 return SocketAddress::GetAddrPort(raw); | |
| 130 } | |
| 131 | |
| 132 | |
| 133 SocketAddress* SocketBase::GetRemotePeer(intptr_t fd, intptr_t* port) { | |
| 134 ASSERT(fd >= 0); | |
| 135 RawAddr raw; | |
| 136 socklen_t size = sizeof(raw); | |
| 137 if (NO_RETRY_EXPECTED(getpeername(fd, &raw.addr, &size))) { | |
| 138 return NULL; | |
| 139 } | |
| 140 *port = SocketAddress::GetAddrPort(raw); | |
| 141 return new SocketAddress(&raw.addr); | |
| 142 } | |
| 143 | |
| 144 | |
| 145 void SocketBase::GetError(intptr_t fd, OSError* os_error) { | |
| 146 int errorNumber; | |
| 147 socklen_t len = sizeof(errorNumber); | |
| 148 getsockopt(fd, SOL_SOCKET, SO_ERROR, reinterpret_cast<void*>(&errorNumber), | |
| 149 &len); | |
| 150 os_error->SetCodeAndMessage(OSError::kSystem, errorNumber); | |
| 151 } | |
| 152 | |
| 153 | |
| 154 int SocketBase::GetType(intptr_t fd) { | |
| 155 struct stat buf; | |
| 156 int result = fstat(fd, &buf); | |
| 157 if (result == -1) { | |
| 158 return -1; | |
| 159 } | |
| 160 if (S_ISCHR(buf.st_mode)) { | |
| 161 return File::kTerminal; | |
| 162 } | |
| 163 if (S_ISFIFO(buf.st_mode)) { | |
| 164 return File::kPipe; | |
| 165 } | |
| 166 if (S_ISREG(buf.st_mode)) { | |
| 167 return File::kFile; | |
| 168 } | |
| 169 return File::kOther; | |
| 170 } | |
| 171 | |
| 172 | |
| 173 intptr_t SocketBase::GetStdioHandle(intptr_t num) { | |
| 174 return num; | |
| 175 } | |
| 176 | |
| 177 | |
| 178 AddressList<SocketAddress>* SocketBase::LookupAddress(const char* host, | |
| 179 int type, | |
| 180 OSError** os_error) { | |
| 181 // Perform a name lookup for a host name. | |
| 182 struct addrinfo hints; | |
| 183 memset(&hints, 0, sizeof(hints)); | |
| 184 hints.ai_family = SocketAddress::FromType(type); | |
| 185 hints.ai_socktype = SOCK_STREAM; | |
| 186 hints.ai_flags = AI_ADDRCONFIG; | |
| 187 hints.ai_protocol = IPPROTO_TCP; | |
| 188 struct addrinfo* info = NULL; | |
| 189 int status = getaddrinfo(host, 0, &hints, &info); | |
| 190 if (status != 0) { | |
| 191 // We failed, try without AI_ADDRCONFIG. This can happen when looking up | |
| 192 // e.g. '::1', when there are no IPv6 addresses. | |
| 193 hints.ai_flags = 0; | |
| 194 status = getaddrinfo(host, 0, &hints, &info); | |
| 195 if (status != 0) { | |
| 196 ASSERT(*os_error == NULL); | |
| 197 *os_error = | |
| 198 new OSError(status, gai_strerror(status), OSError::kGetAddressInfo); | |
| 199 return NULL; | |
| 200 } | |
| 201 } | |
| 202 intptr_t count = 0; | |
| 203 for (struct addrinfo* c = info; c != NULL; c = c->ai_next) { | |
| 204 if ((c->ai_family == AF_INET) || (c->ai_family == AF_INET6)) { | |
| 205 count++; | |
| 206 } | |
| 207 } | |
| 208 intptr_t i = 0; | |
| 209 AddressList<SocketAddress>* addresses = new AddressList<SocketAddress>(count); | |
| 210 for (struct addrinfo* c = info; c != NULL; c = c->ai_next) { | |
| 211 if ((c->ai_family == AF_INET) || (c->ai_family == AF_INET6)) { | |
| 212 addresses->SetAt(i, new SocketAddress(c->ai_addr)); | |
| 213 i++; | |
| 214 } | |
| 215 } | |
| 216 freeaddrinfo(info); | |
| 217 return addresses; | |
| 218 } | |
| 219 | |
| 220 | |
| 221 bool SocketBase::ReverseLookup(const RawAddr& addr, | |
| 222 char* host, | |
| 223 intptr_t host_len, | |
| 224 OSError** os_error) { | |
| 225 ASSERT(host_len >= NI_MAXHOST); | |
| 226 int status = NO_RETRY_EXPECTED( | |
| 227 getnameinfo(&addr.addr, SocketAddress::GetAddrLength(addr), host, | |
| 228 host_len, NULL, 0, NI_NAMEREQD)); | |
| 229 if (status != 0) { | |
| 230 ASSERT(*os_error == NULL); | |
| 231 *os_error = | |
| 232 new OSError(status, gai_strerror(status), OSError::kGetAddressInfo); | |
| 233 return false; | |
| 234 } | |
| 235 return true; | |
| 236 } | |
| 237 | |
| 238 | |
| 239 bool SocketBase::ParseAddress(int type, const char* address, RawAddr* addr) { | |
| 240 int result; | |
| 241 if (type == SocketAddress::TYPE_IPV4) { | |
| 242 result = inet_pton(AF_INET, address, &addr->in.sin_addr); | |
| 243 } else { | |
| 244 ASSERT(type == SocketAddress::TYPE_IPV6); | |
| 245 result = inet_pton(AF_INET6, address, &addr->in6.sin6_addr); | |
| 246 } | |
| 247 return (result == 1); | |
| 248 } | |
| 249 | |
| 250 | |
| 251 bool SocketBase::ListInterfacesSupported() { | |
| 252 return false; | |
| 253 } | |
| 254 | |
| 255 | |
| 256 AddressList<InterfaceSocketAddress>* SocketBase::ListInterfaces( | |
| 257 int type, | |
| 258 OSError** os_error) { | |
| 259 // The ifaddrs.h header is not provided on Android. An Android | |
| 260 // implementation would have to use IOCTL or netlink. | |
| 261 ASSERT(*os_error == NULL); | |
| 262 *os_error = new OSError(-1, | |
| 263 "Listing interfaces is not supported " | |
| 264 "on this platform", | |
| 265 OSError::kSystem); | |
| 266 return NULL; | |
| 267 } | |
| 268 | |
| 269 | |
| 270 void SocketBase::Close(intptr_t fd) { | |
| 271 ASSERT(fd >= 0); | |
| 272 VOID_TEMP_FAILURE_RETRY(close(fd)); | |
| 273 } | |
| 274 | |
| 275 | |
| 276 bool SocketBase::GetNoDelay(intptr_t fd, bool* enabled) { | |
| 277 int on; | |
| 278 socklen_t len = sizeof(on); | |
| 279 int err = NO_RETRY_EXPECTED(getsockopt(fd, IPPROTO_TCP, TCP_NODELAY, | |
| 280 reinterpret_cast<void*>(&on), &len)); | |
| 281 if (err == 0) { | |
| 282 *enabled = (on == 1); | |
| 283 } | |
| 284 return (err == 0); | |
| 285 } | |
| 286 | |
| 287 | |
| 288 bool SocketBase::SetNoDelay(intptr_t fd, bool enabled) { | |
| 289 int on = enabled ? 1 : 0; | |
| 290 return NO_RETRY_EXPECTED(setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, | |
| 291 reinterpret_cast<char*>(&on), | |
| 292 sizeof(on))) == 0; | |
| 293 } | |
| 294 | |
| 295 | |
| 296 bool SocketBase::GetMulticastLoop(intptr_t fd, | |
| 297 intptr_t protocol, | |
| 298 bool* enabled) { | |
| 299 uint8_t on; | |
| 300 socklen_t len = sizeof(on); | |
| 301 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 302 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_LOOP | |
| 303 : IPV6_MULTICAST_LOOP; | |
| 304 if (NO_RETRY_EXPECTED(getsockopt(fd, level, optname, | |
| 305 reinterpret_cast<char*>(&on), &len)) == 0) { | |
| 306 *enabled = (on == 1); | |
| 307 return true; | |
| 308 } | |
| 309 return false; | |
| 310 } | |
| 311 | |
| 312 | |
| 313 bool SocketBase::SetMulticastLoop(intptr_t fd, | |
| 314 intptr_t protocol, | |
| 315 bool enabled) { | |
| 316 int on = enabled ? 1 : 0; | |
| 317 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 318 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_LOOP | |
| 319 : IPV6_MULTICAST_LOOP; | |
| 320 return NO_RETRY_EXPECTED(setsockopt( | |
| 321 fd, level, optname, reinterpret_cast<char*>(&on), sizeof(on))) == | |
| 322 0; | |
| 323 } | |
| 324 | |
| 325 bool SocketBase::GetMulticastHops(intptr_t fd, intptr_t protocol, int* value) { | |
| 326 uint8_t v; | |
| 327 socklen_t len = sizeof(v); | |
| 328 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 329 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_TTL | |
| 330 : IPV6_MULTICAST_HOPS; | |
| 331 if (NO_RETRY_EXPECTED(getsockopt(fd, level, optname, | |
| 332 reinterpret_cast<char*>(&v), &len)) == 0) { | |
| 333 *value = v; | |
| 334 return true; | |
| 335 } | |
| 336 return false; | |
| 337 } | |
| 338 | |
| 339 | |
| 340 bool SocketBase::SetMulticastHops(intptr_t fd, intptr_t protocol, int value) { | |
| 341 int v = value; | |
| 342 int level = protocol == SocketAddress::TYPE_IPV4 ? IPPROTO_IP : IPPROTO_IPV6; | |
| 343 int optname = protocol == SocketAddress::TYPE_IPV4 ? IP_MULTICAST_TTL | |
| 344 : IPV6_MULTICAST_HOPS; | |
| 345 return NO_RETRY_EXPECTED(setsockopt( | |
| 346 fd, level, optname, reinterpret_cast<char*>(&v), sizeof(v))) == 0; | |
| 347 } | |
| 348 | |
| 349 | |
| 350 bool SocketBase::GetBroadcast(intptr_t fd, bool* enabled) { | |
| 351 int on; | |
| 352 socklen_t len = sizeof(on); | |
| 353 int err = NO_RETRY_EXPECTED(getsockopt(fd, SOL_SOCKET, SO_BROADCAST, | |
| 354 reinterpret_cast<char*>(&on), &len)); | |
| 355 if (err == 0) { | |
| 356 *enabled = (on == 1); | |
| 357 } | |
| 358 return (err == 0); | |
| 359 } | |
| 360 | |
| 361 | |
| 362 bool SocketBase::SetBroadcast(intptr_t fd, bool enabled) { | |
| 363 int on = enabled ? 1 : 0; | |
| 364 return NO_RETRY_EXPECTED(setsockopt(fd, SOL_SOCKET, SO_BROADCAST, | |
| 365 reinterpret_cast<char*>(&on), | |
| 366 sizeof(on))) == 0; | |
| 367 } | |
| 368 | |
| 369 | |
| 370 bool SocketBase::JoinMulticast(intptr_t fd, | |
| 371 const RawAddr& addr, | |
| 372 const RawAddr&, | |
| 373 int interfaceIndex) { | |
| 374 int proto = (addr.addr.sa_family == AF_INET) ? IPPROTO_IP : IPPROTO_IPV6; | |
| 375 struct group_req mreq; | |
| 376 mreq.gr_interface = interfaceIndex; | |
| 377 memmove(&mreq.gr_group, &addr.ss, SocketAddress::GetAddrLength(addr)); | |
| 378 return NO_RETRY_EXPECTED( | |
| 379 setsockopt(fd, proto, MCAST_JOIN_GROUP, &mreq, sizeof(mreq))) == 0; | |
| 380 } | |
| 381 | |
| 382 | |
| 383 bool SocketBase::LeaveMulticast(intptr_t fd, | |
| 384 const RawAddr& addr, | |
| 385 const RawAddr&, | |
| 386 int interfaceIndex) { | |
| 387 int proto = (addr.addr.sa_family == AF_INET) ? IPPROTO_IP : IPPROTO_IPV6; | |
| 388 struct group_req mreq; | |
| 389 mreq.gr_interface = interfaceIndex; | |
| 390 memmove(&mreq.gr_group, &addr.ss, SocketAddress::GetAddrLength(addr)); | |
| 391 return NO_RETRY_EXPECTED(setsockopt(fd, proto, MCAST_LEAVE_GROUP, &mreq, | |
| 392 sizeof(mreq))) == 0; | |
| 393 } | |
| 394 | |
| 395 } // namespace bin | |
| 396 } // namespace dart | |
| 397 | |
| 398 #endif // defined(HOST_OS_ANDROID) | |
| 399 | |
| 400 #endif // !defined(DART_IO_DISABLED) | |
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Issue 2791163004:
Reverting until bots clear up. (Closed)
