mono/metadata/socket-io.c

   1 /*
   2  * socket-io.c: Socket IO internal calls
   3  *
   4  * Authors:
   5  *      Dick Porter (dick@ximian.com)
   6  *      Gonzalo Paniagua Javier (gonzalo@ximian.com)
   7  *
   8  * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
   9  * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
  10  *
  11  * This file has been re-licensed under the MIT License:
  12  * http://opensource.org/licenses/MIT
  13  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  14  */
  15
  16 #include <config.h>
  17
  18 #ifndef DISABLE_SOCKETS
  19
  20 #if defined(__APPLE__) || defined(__FreeBSD__)
  21 #define __APPLE_USE_RFC_3542
  22 #endif
  23
  24 #include <glib.h>
  25 #include <string.h>
  26 #include <stdlib.h>
  27 #ifdef HOST_WIN32
  28 #include <ws2tcpip.h>
  29 #else
  30 #include <sys/socket.h>
  31 #ifdef HAVE_SYS_IOCTL_H
  32 #include <sys/ioctl.h>
  33 #endif
  34 #include <netinet/in.h>
  35 #include <netinet/tcp.h>
  36 #ifdef HAVE_NETDB_H
  37 #include <netdb.h>
  38 #endif
  39 #include <arpa/inet.h>
  40 #endif
  41 #ifdef HAVE_UNISTD_H
  42 #include <unistd.h>
  43 #endif
  44 #include <errno.h>
  45
  46 #include <sys/types.h>
  47
  48 #include <mono/metadata/object.h>
  49 #include <mono/io-layer/io-layer.h>
  50 #include <mono/metadata/socket-io.h>
  51 #include <mono/metadata/exception.h>
  52 #include <mono/metadata/assembly.h>
  53 #include <mono/metadata/appdomain.h>
  54 #include <mono/metadata/file-io.h>
  55 #include <mono/metadata/threads.h>
  56 #include <mono/metadata/threads-types.h>
  57 #include <mono/metadata/threadpool-ms-io.h>
  58 #include <mono/utils/mono-poll.h>
  59 /* FIXME change this code to not mess so much with the internals */
  60 #include <mono/metadata/class-internals.h>
  61 #include <mono/metadata/domain-internals.h>
  62 #include <mono/utils/mono-threads.h>
  63 #include <mono/utils/mono-memory-model.h>
  64 #include <mono/utils/networking.h>
  65 #include <mono/utils/w32handle.h>
  66
  67 #include <time.h>
  68 #ifdef HAVE_SYS_TIME_H
  69 #include <sys/time.h>
  70 #endif
  71 #ifdef HAVE_SYS_IOCTL_H
  72 #include <sys/ioctl.h>
  73 #endif
  74 #ifdef HAVE_NET_IF_H
  75 #include <net/if.h>
  76 #endif
  77
  78 #ifdef HAVE_NETDB_H
  79 #include <netdb.h>
  80 #endif
  81 #ifdef HAVE_SYS_FILIO_H
  82 #include <sys/filio.h>     /* defines FIONBIO and FIONREAD */
  83 #endif
  84 #ifdef HAVE_SYS_SOCKIO_H
  85 #include <sys/sockio.h>    /* defines SIOCATMARK */
  86 #endif
  87 #ifdef HAVE_SYS_UN_H
  88 #include <sys/un.h>
  89 #endif
  90
  91 #ifdef HAVE_GETIFADDRS
  92 // <net/if.h> must be included before <ifaddrs.h>
  93 #include <ifaddrs.h>
  94 #endif
  95
  96 #include "mono/io-layer/socket-wrappers.h"
  97
  98 #define LOGDEBUG(...)
  99 /* define LOGDEBUG(...) g_message(__VA_ARGS__)  */
 100
 101 static void
 102 abort_syscall (gpointer data)
 103 {
 104         mono_thread_info_abort_socket_syscall_for_close ((MonoNativeThreadId) (gsize) data);
 105 }
 106
 107 static gint32
 108 convert_family (MonoAddressFamily mono_family)
 109 {
 110         switch (mono_family) {
 111         case AddressFamily_Unknown:
 112         case AddressFamily_ImpLink:
 113         case AddressFamily_Pup:
 114         case AddressFamily_Chaos:
 115         case AddressFamily_Iso:
 116         case AddressFamily_Ecma:
 117         case AddressFamily_DataKit:
 118         case AddressFamily_Ccitt:
 119         case AddressFamily_DataLink:
 120         case AddressFamily_Lat:
 121         case AddressFamily_HyperChannel:
 122         case AddressFamily_NetBios:
 123         case AddressFamily_VoiceView:
 124         case AddressFamily_FireFox:
 125         case AddressFamily_Banyan:
 126         case AddressFamily_Atm:
 127         case AddressFamily_Cluster:
 128         case AddressFamily_Ieee12844:
 129         case AddressFamily_NetworkDesigners:
 130                 g_warning ("System.Net.Sockets.AddressFamily has unsupported value 0x%x", mono_family);
 131                 return -1;
 132         case AddressFamily_Unspecified:
 133                 return AF_UNSPEC;
 134         case AddressFamily_Unix:
 135                 return AF_UNIX;
 136         case AddressFamily_InterNetwork:
 137                 return AF_INET;
 138         case AddressFamily_AppleTalk:
 139                 return AF_APPLETALK;
 140         case AddressFamily_InterNetworkV6:
 141                 return AF_INET6;
 142         case AddressFamily_DecNet:
 143 #ifdef AF_DECnet
 144                 return AF_DECnet;
 145 #else
 146                 return -1;
 147 #endif
 148         case AddressFamily_Ipx:
 149 #ifdef AF_IPX
 150                 return AF_IPX;
 151 #else
 152                 return -1;
 153 #endif
 154         case AddressFamily_Sna:
 155 #ifdef AF_SNA
 156                 return AF_SNA;
 157 #else
 158                 return -1;
 159 #endif
 160         case AddressFamily_Irda:
 161 #ifdef AF_IRDA
 162                 return AF_IRDA;
 163 #else
 164                 return -1;
 165 #endif
 166         default:
 167                 g_warning ("System.Net.Sockets.AddressFamily has unknown value 0x%x", mono_family);
 168                 return -1;
 169         }
 170 }
 171
 172 static MonoAddressFamily
 173 convert_to_mono_family (guint16 af_family)
 174 {
 175         switch (af_family) {
 176         case AF_UNSPEC:
 177                 return AddressFamily_Unspecified;
 178         case AF_UNIX:
 179                 return AddressFamily_Unix;
 180         case AF_INET:
 181                 return AddressFamily_InterNetwork;
 182 #ifdef AF_IPX
 183         case AF_IPX:
 184                 return AddressFamily_Ipx;
 185 #endif
 186 #ifdef AF_SNA
 187         case AF_SNA:
 188                 return AddressFamily_Sna;
 189 #endif
 190 #ifdef AF_DECnet
 191         case AF_DECnet:
 192                 return AddressFamily_DecNet;
 193 #endif
 194         case AF_APPLETALK:
 195                 return AddressFamily_AppleTalk;
 196         case AF_INET6:
 197                 return AddressFamily_InterNetworkV6;
 198 #ifdef AF_IRDA
 199         case AF_IRDA:
 200                 return AddressFamily_Irda;
 201 #endif
 202         default:
 203                 g_warning ("unknown address family 0x%x", af_family);
 204                 return AddressFamily_Unknown;
 205         }
 206 }
 207
 208 static gint32
 209 convert_type (MonoSocketType mono_type)
 210 {
 211         switch (mono_type) {
 212         case SocketType_Stream:
 213                 return SOCK_STREAM;
 214         case SocketType_Dgram:
 215                 return SOCK_DGRAM;
 216         case SocketType_Raw:
 217                 return SOCK_RAW;
 218         case SocketType_Rdm:
 219 #ifdef SOCK_RDM
 220                 return SOCK_RDM;
 221 #else
 222                 return -1;
 223 #endif
 224         case SocketType_Seqpacket:
 225                 return SOCK_SEQPACKET;
 226         case SocketType_Unknown:
 227                 g_warning ("System.Net.Sockets.SocketType has unsupported value 0x%x", mono_type);
 228                 return -1;
 229         default:
 230                 g_warning ("System.Net.Sockets.SocketType has unknown value 0x%x", mono_type);
 231                 return -1;
 232         }
 233 }
 234
 235 static gint32
 236 convert_proto (MonoProtocolType mono_proto)
 237 {
 238         switch (mono_proto) {
 239         case ProtocolType_IP:
 240         case ProtocolType_IPv6:
 241         case ProtocolType_Icmp:
 242         case ProtocolType_Igmp:
 243         case ProtocolType_Ggp:
 244         case ProtocolType_Tcp:
 245         case ProtocolType_Pup:
 246         case ProtocolType_Udp:
 247         case ProtocolType_Idp:
 248                 /* These protocols are known (on my system at least) */
 249                 return mono_proto;
 250         case ProtocolType_ND:
 251         case ProtocolType_Raw:
 252         case ProtocolType_Ipx:
 253         case ProtocolType_Spx:
 254         case ProtocolType_SpxII:
 255         case ProtocolType_Unknown:
 256                 /* These protocols arent */
 257                 g_warning ("System.Net.Sockets.ProtocolType has unsupported value 0x%x", mono_proto);
 258                 return -1;
 259         default:
 260                 return -1;
 261         }
 262 }
 263
 264 /* Convert MonoSocketFlags */
 265 static gint32
 266 convert_socketflags (gint32 sflags)
 267 {
 268         gint32 flags = 0;
 269
 270         if (!sflags)
 271                 /* SocketFlags.None */
 272                 return 0;
 273
 274         if (sflags & ~(SocketFlags_OutOfBand | SocketFlags_MaxIOVectorLength | SocketFlags_Peek |
 275                         SocketFlags_DontRoute | SocketFlags_Partial))
 276                 /* Contains invalid flag values */
 277                 return -1;
 278
 279         if (sflags & SocketFlags_OutOfBand)
 280                 flags |= MSG_OOB;
 281         if (sflags & SocketFlags_Peek)
 282                 flags |= MSG_PEEK;
 283         if (sflags & SocketFlags_DontRoute)
 284                 flags |= MSG_DONTROUTE;
 285
 286         /* Ignore Partial - see bug 349688.  Don't return -1, because
 287          * according to the comment in that bug ms runtime doesn't for
 288          * UDP sockets (this means we will silently ignore it for TCP
 289          * too)
 290          */
 291 #ifdef MSG_MORE
 292         if (sflags & SocketFlags_Partial)
 293                 flags |= MSG_MORE;
 294 #endif
 295 #if 0
 296         /* Don't do anything for MaxIOVectorLength */
 297         if (sflags & SocketFlags_MaxIOVectorLength)
 298                 return -1;
 299 #endif
 300         return flags;
 301 }
 302
 303 /*
 304  * Returns:
 305  *    0 on success (mapped mono_level and mono_name to system_level and system_name
 306  *   -1 on error
 307  *   -2 on non-fatal error (ie, must ignore)
 308  */
 309 static gint32
 310 convert_sockopt_level_and_name (MonoSocketOptionLevel mono_level, MonoSocketOptionName mono_name, int *system_level, int *system_name)
 311 {
 312         switch (mono_level) {
 313         case SocketOptionLevel_Socket:
 314                 *system_level = SOL_SOCKET;
 315
 316                 switch (mono_name) {
 317                 case SocketOptionName_DontLinger:
 318                         /* This is SO_LINGER, because the setsockopt
 319                          * internal call maps DontLinger to SO_LINGER
 320                          * with l_onoff=0
 321                          */
 322                         *system_name = SO_LINGER;
 323                         break;
 324                 case SocketOptionName_Debug:
 325                         *system_name = SO_DEBUG;
 326                         break;
 327 #ifdef SO_ACCEPTCONN
 328                 case SocketOptionName_AcceptConnection:
 329                         *system_name = SO_ACCEPTCONN;
 330                         break;
 331 #endif
 332                 case SocketOptionName_ReuseAddress:
 333                         *system_name = SO_REUSEADDR;
 334                         break;
 335                 case SocketOptionName_KeepAlive:
 336                         *system_name = SO_KEEPALIVE;
 337                         break;
 338                 case SocketOptionName_DontRoute:
 339                         *system_name = SO_DONTROUTE;
 340                         break;
 341                 case SocketOptionName_Broadcast:
 342                         *system_name = SO_BROADCAST;
 343                         break;
 344                 case SocketOptionName_Linger:
 345                         *system_name = SO_LINGER;
 346                         break;
 347                 case SocketOptionName_OutOfBandInline:
 348                         *system_name = SO_OOBINLINE;
 349                         break;
 350                 case SocketOptionName_SendBuffer:
 351                         *system_name = SO_SNDBUF;
 352                         break;
 353                 case SocketOptionName_ReceiveBuffer:
 354                         *system_name = SO_RCVBUF;
 355                         break;
 356                 case SocketOptionName_SendLowWater:
 357                         *system_name = SO_SNDLOWAT;
 358                         break;
 359                 case SocketOptionName_ReceiveLowWater:
 360                         *system_name = SO_RCVLOWAT;
 361                         break;
 362                 case SocketOptionName_SendTimeout:
 363                         *system_name = SO_SNDTIMEO;
 364                         break;
 365                 case SocketOptionName_ReceiveTimeout:
 366                         *system_name = SO_RCVTIMEO;
 367                         break;
 368                 case SocketOptionName_Error:
 369                         *system_name = SO_ERROR;
 370                         break;
 371                 case SocketOptionName_Type:
 372                         *system_name = SO_TYPE;
 373                         break;
 374 #ifdef SO_PEERCRED
 375                 case SocketOptionName_PeerCred:
 376                         *system_name = SO_PEERCRED;
 377                         break;
 378 #endif
 379                 case SocketOptionName_ExclusiveAddressUse:
 380 #ifdef SO_EXCLUSIVEADDRUSE
 381                         *system_name = SO_EXCLUSIVEADDRUSE;
 382                         break;
 383 #endif
 384                 case SocketOptionName_UseLoopback:
 385 #ifdef SO_USELOOPBACK
 386                         *system_name = SO_USELOOPBACK;
 387                         break;
 388 #endif
 389                 case SocketOptionName_MaxConnections:
 390 #ifdef SO_MAXCONN
 391                         *system_name = SO_MAXCONN;
 392                         break;
 393 #elif defined(SOMAXCONN)
 394                         *system_name = SOMAXCONN;
 395                         break;
 396 #endif
 397                 default:
 398                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at Socket level", mono_name);
 399                         return -1;
 400                 }
 401                 break;
 402
 403         case SocketOptionLevel_IP:
 404                 *system_level = mono_networking_get_ip_protocol ();
 405
 406                 switch (mono_name) {
 407                 case SocketOptionName_IPOptions:
 408                         *system_name = IP_OPTIONS;
 409                         break;
 410 #ifdef IP_HDRINCL
 411                 case SocketOptionName_HeaderIncluded:
 412                         *system_name = IP_HDRINCL;
 413                         break;
 414 #endif
 415 #ifdef IP_TOS
 416                 case SocketOptionName_TypeOfService:
 417                         *system_name = IP_TOS;
 418                         break;
 419 #endif
 420 #ifdef IP_TTL
 421                 case SocketOptionName_IpTimeToLive:
 422                         *system_name = IP_TTL;
 423                         break;
 424 #endif
 425                 case SocketOptionName_MulticastInterface:
 426                         *system_name = IP_MULTICAST_IF;
 427                         break;
 428                 case SocketOptionName_MulticastTimeToLive:
 429                         *system_name = IP_MULTICAST_TTL;
 430                         break;
 431                 case SocketOptionName_MulticastLoopback:
 432                         *system_name = IP_MULTICAST_LOOP;
 433                         break;
 434                 case SocketOptionName_AddMembership:
 435                         *system_name = IP_ADD_MEMBERSHIP;
 436                         break;
 437                 case SocketOptionName_DropMembership:
 438                         *system_name = IP_DROP_MEMBERSHIP;
 439                         break;
 440 #ifdef HAVE_IP_PKTINFO
 441                 case SocketOptionName_PacketInformation:
 442                         *system_name = IP_PKTINFO;
 443                         break;
 444 #endif /* HAVE_IP_PKTINFO */
 445
 446                 case SocketOptionName_DontFragment:
 447 #ifdef HAVE_IP_DONTFRAGMENT
 448                         *system_name = IP_DONTFRAGMENT;
 449                         break;
 450 #elif defined HAVE_IP_MTU_DISCOVER
 451                         /* Not quite the same */
 452                         *system_name = IP_MTU_DISCOVER;
 453                         break;
 454 #else
 455                         /* If the flag is not available on this system, we can ignore this error */
 456                         return -2;
 457 #endif /* HAVE_IP_DONTFRAGMENT */
 458                 case SocketOptionName_AddSourceMembership:
 459                 case SocketOptionName_DropSourceMembership:
 460                 case SocketOptionName_BlockSource:
 461                 case SocketOptionName_UnblockSource:
 462                         /* Can't figure out how to map these, so fall
 463                          * through
 464                          */
 465                 default:
 466                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at IP level", mono_name);
 467                         return -1;
 468                 }
 469                 break;
 470
 471         case SocketOptionLevel_IPv6:
 472                 *system_level = mono_networking_get_ipv6_protocol ();
 473
 474                 switch (mono_name) {
 475                 case SocketOptionName_IpTimeToLive:
 476                 case SocketOptionName_HopLimit:
 477                         *system_name = IPV6_UNICAST_HOPS;
 478                         break;
 479                 case SocketOptionName_MulticastInterface:
 480                         *system_name = IPV6_MULTICAST_IF;
 481                         break;
 482                 case SocketOptionName_MulticastTimeToLive:
 483                         *system_name = IPV6_MULTICAST_HOPS;
 484                         break;
 485                 case SocketOptionName_MulticastLoopback:
 486                         *system_name = IPV6_MULTICAST_LOOP;
 487                         break;
 488                 case SocketOptionName_AddMembership:
 489                         *system_name = IPV6_JOIN_GROUP;
 490                         break;
 491                 case SocketOptionName_DropMembership:
 492                         *system_name = IPV6_LEAVE_GROUP;
 493                         break;
 494                 case SocketOptionName_IPv6Only:
 495 #ifdef IPV6_V6ONLY
 496                         *system_name = IPV6_V6ONLY;
 497 #else
 498                         return -1;
 499 #endif
 500                         break;
 501                 case SocketOptionName_PacketInformation:
 502 #ifdef HAVE_IPV6_PKTINFO
 503                         *system_name = IPV6_PKTINFO;
 504 #endif
 505                         break;
 506                 case SocketOptionName_HeaderIncluded:
 507                 case SocketOptionName_IPOptions:
 508                 case SocketOptionName_TypeOfService:
 509                 case SocketOptionName_DontFragment:
 510                 case SocketOptionName_AddSourceMembership:
 511                 case SocketOptionName_DropSourceMembership:
 512                 case SocketOptionName_BlockSource:
 513                 case SocketOptionName_UnblockSource:
 514                         /* Can't figure out how to map these, so fall
 515                          * through
 516                          */
 517                 default:
 518                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at IPv6 level", mono_name);
 519                         return -1;
 520                 }
 521                 break;  /* SocketOptionLevel_IPv6 */
 522
 523         case SocketOptionLevel_Tcp:
 524                 *system_level = mono_networking_get_tcp_protocol ();
 525
 526                 switch (mono_name) {
 527                 case SocketOptionName_NoDelay:
 528                         *system_name = TCP_NODELAY;
 529                         break;
 530 #if 0
 531                         /* The documentation is talking complete
 532                          * bollocks here: rfc-1222 is titled
 533                          * 'Advancing the NSFNET Routing Architecture'
 534                          * and doesn't mention either of the words
 535                          * "expedite" or "urgent".
 536                          */
 537                 case SocketOptionName_BsdUrgent:
 538                 case SocketOptionName_Expedited:
 539 #endif
 540                 default:
 541                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at TCP level", mono_name);
 542                         return -1;
 543                 }
 544                 break;
 545
 546         case SocketOptionLevel_Udp:
 547                 g_warning ("System.Net.Sockets.SocketOptionLevel has unsupported value 0x%x", mono_level);
 548
 549                 switch(mono_name) {
 550                 case SocketOptionName_NoChecksum:
 551                 case SocketOptionName_ChecksumCoverage:
 552                 default:
 553                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at UDP level", mono_name);
 554                         return -1;
 555                 }
 556                 return -1;
 557                 break;
 558
 559         default:
 560                 g_warning ("System.Net.Sockets.SocketOptionLevel has unknown value 0x%x", mono_level);
 561                 return -1;
 562         }
 563
 564         return 0;
 565 }
 566
 567 static MonoImage*
 568 get_socket_assembly (void)
 569 {
 570         MonoDomain *domain = mono_domain_get ();
 571
 572         if (domain->socket_assembly == NULL) {
 573                 MonoImage *socket_assembly;
 574
 575                 socket_assembly = mono_image_loaded ("System");
 576                 if (!socket_assembly) {
 577                         MonoAssembly *sa = mono_assembly_open ("System.dll", NULL);
 578
 579                         if (!sa) {
 580                                 g_assert_not_reached ();
 581                         } else {
 582                                 socket_assembly = mono_assembly_get_image (sa);
 583                         }
 584                 }
 585                 mono_atomic_store_release (&domain->socket_assembly, socket_assembly);
 586         }
 587
 588         return domain->socket_assembly;
 589 }
 590
 591 static gint32
 592 get_family_hint (MonoError *error)
 593 {
 594         MonoDomain *domain = mono_domain_get ();
 595
 596         mono_error_init (error);
 597
 598         if (!domain->inet_family_hint) {
 599                 MonoImage *socket_assembly;
 600                 MonoClass *socket_class;
 601                 MonoClassField *ipv6_field, *ipv4_field;
 602                 gint32 ipv6_enabled = -1, ipv4_enabled = -1;
 603                 MonoVTable *vtable;
 604
 605                 socket_assembly = get_socket_assembly ();
 606                 g_assert (socket_assembly);
 607
 608                 socket_class = mono_class_load_from_name (socket_assembly, "System.Net.Sockets", "Socket");
 609
 610                 ipv4_field = mono_class_get_field_from_name (socket_class, "ipv4_supported");
 611                 g_assert (ipv4_field);
 612
 613                 ipv6_field = mono_class_get_field_from_name (socket_class, "ipv6_supported");
 614                 g_assert (ipv6_field);
 615
 616                 vtable = mono_class_vtable (mono_domain_get (), socket_class);
 617                 g_assert (vtable);
 618
 619                 mono_runtime_class_init_full (vtable, error);
 620                 return_val_if_nok (error, -1);
 621
 622                 mono_field_static_get_value_checked (vtable, ipv4_field, &ipv4_enabled, error);
 623                 return_val_if_nok (error, -1);
 624                 mono_field_static_get_value_checked (vtable, ipv6_field, &ipv6_enabled, error);
 625                 return_val_if_nok (error, -1);
 626
 627                 mono_domain_lock (domain);
 628                 if (ipv4_enabled == 1 && ipv6_enabled == 1) {
 629                         domain->inet_family_hint = 1;
 630                 } else if (ipv4_enabled == 1) {
 631                         domain->inet_family_hint = 2;
 632                 } else {
 633                         domain->inet_family_hint = 3;
 634                 }
 635                 mono_domain_unlock (domain);
 636         }
 637         switch (domain->inet_family_hint) {
 638         case 1: return PF_UNSPEC;
 639         case 2: return PF_INET;
 640         case 3: return PF_INET6;
 641         default:
 642                 return PF_UNSPEC;
 643         }
 644 }
 645
 646 gpointer
 647 ves_icall_System_Net_Sockets_Socket_Socket_internal (MonoObject *this_obj, gint32 family, gint32 type, gint32 proto, gint32 *werror)
 648 {
 649         SOCKET sock;
 650         gint32 sock_family;
 651         gint32 sock_proto;
 652         gint32 sock_type;
 653
 654         *werror = 0;
 655
 656         sock_family = convert_family ((MonoAddressFamily)family);
 657         if (sock_family == -1) {
 658                 *werror = WSAEAFNOSUPPORT;
 659                 return NULL;
 660         }
 661
 662         sock_proto = convert_proto ((MonoProtocolType)proto);
 663         if (sock_proto == -1) {
 664                 *werror = WSAEPROTONOSUPPORT;
 665                 return NULL;
 666         }
 667
 668         sock_type = convert_type ((MonoSocketType)type);
 669         if (sock_type == -1) {
 670                 *werror = WSAESOCKTNOSUPPORT;
 671                 return NULL;
 672         }
 673
 674         sock = _wapi_socket (sock_family, sock_type, sock_proto,
 675                              NULL, 0, WSA_FLAG_OVERLAPPED);
 676
 677         if (sock == INVALID_SOCKET) {
 678                 *werror = WSAGetLastError ();
 679                 return NULL;
 680         }
 681
 682         return GUINT_TO_POINTER (sock);
 683 }
 684
 685 /* FIXME: the SOCKET parameter (here and in other functions in this
 686  * file) is really an IntPtr which needs to be converted to a guint32.
 687  */
 688 void
 689 ves_icall_System_Net_Sockets_Socket_Close_internal (SOCKET sock, gint32 *werror)
 690 {
 691         LOGDEBUG (g_message ("%s: closing 0x%x", __func__, sock));
 692
 693         *werror = 0;
 694
 695         /* Clear any pending work item from this socket if the underlying
 696          * polling system does not notify when the socket is closed */
 697         mono_threadpool_ms_io_remove_socket (GPOINTER_TO_INT (sock));
 698
 699         MONO_ENTER_GC_SAFE;
 700         closesocket (sock);
 701         MONO_EXIT_GC_SAFE;
 702 }
 703
 704 gint32
 705 ves_icall_System_Net_Sockets_SocketException_WSAGetLastError_internal (void)
 706 {
 707         LOGDEBUG (g_message("%s: returning %d", __func__, WSAGetLastError ()));
 708
 709         return WSAGetLastError ();
 710 }
 711
 712 gint32
 713 ves_icall_System_Net_Sockets_Socket_Available_internal (SOCKET sock, gint32 *werror)
 714 {
 715         int ret;
 716         int amount;
 717
 718         *werror = 0;
 719
 720         /* FIXME: this might require amount to be unsigned long. */
 721         ret = ioctlsocket (sock, FIONREAD, &amount);
 722         if (ret == SOCKET_ERROR) {
 723                 *werror = WSAGetLastError ();
 724                 return 0;
 725         }
 726
 727         return amount;
 728 }
 729
 730 void
 731 ves_icall_System_Net_Sockets_Socket_Blocking_internal (SOCKET sock, gboolean block, gint32 *werror)
 732 {
 733         int ret;
 734
 735         *werror = 0;
 736
 737         /*
 738          * block == TRUE/FALSE means we will block/not block.
 739          * But the ioctlsocket call takes TRUE/FALSE for non-block/block
 740          */
 741         block = !block;
 742
 743         ret = ioctlsocket (sock, FIONBIO, (gulong *)&block);
 744         if (ret == SOCKET_ERROR)
 745                 *werror = WSAGetLastError ();
 746 }
 747
 748 gpointer
 749 ves_icall_System_Net_Sockets_Socket_Accept_internal (SOCKET sock, gint32 *werror, gboolean blocking)
 750 {
 751         gboolean interrupted;
 752         SOCKET newsock;
 753
 754         *werror = 0;
 755
 756         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
 757         if (interrupted) {
 758                 *werror = WSAEINTR;
 759                 return NULL;
 760         }
 761
 762         MONO_ENTER_GC_SAFE;
 763
 764 #ifdef HOST_WIN32
 765         {
 766                 MonoInternalThread *curthread = mono_thread_internal_current ();
 767                 curthread->interrupt_on_stop = (gpointer)TRUE;
 768                 newsock = _wapi_accept (sock, NULL, 0);
 769                 curthread->interrupt_on_stop = (gpointer)FALSE;
 770         }
 771 #else
 772         newsock = _wapi_accept (sock, NULL, 0);
 773 #endif
 774
 775         MONO_EXIT_GC_SAFE;
 776
 777         if (newsock == INVALID_SOCKET)
 778                 *werror = WSAGetLastError ();
 779
 780         mono_thread_info_uninstall_interrupt (&interrupted);
 781         if (interrupted)
 782                 *werror = WSAEINTR;
 783
 784         if (*werror)
 785                 return NULL;
 786
 787         return GUINT_TO_POINTER (newsock);
 788 }
 789
 790 void
 791 ves_icall_System_Net_Sockets_Socket_Listen_internal(SOCKET sock, guint32 backlog, gint32 *werror)
 792 {
 793         int ret;
 794
 795         *werror = 0;
 796
 797         MONO_ENTER_GC_SAFE;
 798
 799         ret = _wapi_listen (sock, backlog);
 800
 801         MONO_EXIT_GC_SAFE;
 802
 803         if (ret == SOCKET_ERROR)
 804                 *werror = WSAGetLastError ();
 805 }
 806
 807 // Check whether it's ::ffff::0:0.
 808 static gboolean
 809 is_ipv4_mapped_any (const struct in6_addr *addr)
 810 {
 811         int i;
 812
 813         for (i = 0; i < 10; i++) {
 814                 if (addr->s6_addr [i])
 815                         return FALSE;
 816         }
 817         if ((addr->s6_addr [10] != 0xff) || (addr->s6_addr [11] != 0xff))
 818                 return FALSE;
 819         for (i = 12; i < 16; i++) {
 820                 if (addr->s6_addr [i])
 821                         return FALSE;
 822         }
 823         return TRUE;
 824 }
 825
 826 static MonoObject*
 827 create_object_from_sockaddr (struct sockaddr *saddr, int sa_size, gint32 *werror, MonoError *error)
 828 {
 829         MonoDomain *domain = mono_domain_get ();
 830         MonoObject *sockaddr_obj;
 831         MonoArray *data;
 832         MonoAddressFamily family;
 833
 834         mono_error_init (error);
 835
 836         /* Build a System.Net.SocketAddress object instance */
 837         if (!domain->sockaddr_class)
 838                 domain->sockaddr_class = mono_class_load_from_name (get_socket_assembly (), "System.Net", "SocketAddress");
 839         sockaddr_obj = mono_object_new_checked (domain, domain->sockaddr_class, error);
 840         return_val_if_nok (error, NULL);
 841
 842         /* Locate the SocketAddress data buffer in the object */
 843         if (!domain->sockaddr_data_field) {
 844                 domain->sockaddr_data_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Buffer");
 845                 g_assert (domain->sockaddr_data_field);
 846         }
 847
 848         /* Locate the SocketAddress data buffer length in the object */
 849         if (!domain->sockaddr_data_length_field) {
 850                 domain->sockaddr_data_length_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Size");
 851                 g_assert (domain->sockaddr_data_length_field);
 852         }
 853
 854         /* May be the +2 here is too conservative, as sa_len returns
 855          * the length of the entire sockaddr_in/in6, including
 856          * sizeof (unsigned short) of the family */
 857         /* We can't really avoid the +2 as all code below depends on this size - INCLUDING unix domain sockets.*/
 858         data = mono_array_new_cached (domain, mono_get_byte_class (), sa_size + 2, error);
 859         return_val_if_nok (error, NULL);
 860
 861         /* The data buffer is laid out as follows:
 862          * bytes 0 and 1 are the address family
 863          * bytes 2 and 3 are the port info
 864          * the rest is the address info
 865          */
 866
 867         family = convert_to_mono_family (saddr->sa_family);
 868         if (family == AddressFamily_Unknown) {
 869                 *werror = WSAEAFNOSUPPORT;
 870                 return NULL;
 871         }
 872
 873         mono_array_set (data, guint8, 0, family & 0x0FF);
 874         mono_array_set (data, guint8, 1, (family >> 8) & 0x0FF);
 875
 876         if (saddr->sa_family == AF_INET) {
 877                 struct sockaddr_in *sa_in = (struct sockaddr_in *)saddr;
 878                 guint16 port = ntohs (sa_in->sin_port);
 879                 guint32 address = ntohl (sa_in->sin_addr.s_addr);
 880                 int buffer_size = 8;
 881
 882                 if (sa_size < buffer_size) {
 883                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
 884                         return NULL;
 885                 }
 886
 887                 mono_array_set (data, guint8, 2, (port>>8) & 0xff);
 888                 mono_array_set (data, guint8, 3, (port) & 0xff);
 889                 mono_array_set (data, guint8, 4, (address>>24) & 0xff);
 890                 mono_array_set (data, guint8, 5, (address>>16) & 0xff);
 891                 mono_array_set (data, guint8, 6, (address>>8) & 0xff);
 892                 mono_array_set (data, guint8, 7, (address) & 0xff);
 893
 894                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_field, data);
 895                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_length_field, &buffer_size);
 896
 897                 return sockaddr_obj;
 898         } else if (saddr->sa_family == AF_INET6) {
 899                 struct sockaddr_in6 *sa_in = (struct sockaddr_in6 *)saddr;
 900                 int i;
 901                 int buffer_size = 28;
 902
 903                 guint16 port = ntohs (sa_in->sin6_port);
 904
 905                 if (sa_size < buffer_size) {
 906                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
 907                         return NULL;
 908                 }
 909
 910                 mono_array_set (data, guint8, 2, (port>>8) & 0xff);
 911                 mono_array_set (data, guint8, 3, (port) & 0xff);
 912
 913                 if (is_ipv4_mapped_any (&sa_in->sin6_addr)) {
 914                         // Map ::ffff:0:0 to :: (bug #5502)
 915                         for (i = 0; i < 16; i++)
 916                                 mono_array_set (data, guint8, 8 + i, 0);
 917                 } else {
 918                         for (i = 0; i < 16; i++) {
 919                                 mono_array_set (data, guint8, 8 + i,
 920                                                                 sa_in->sin6_addr.s6_addr [i]);
 921                         }
 922                 }
 923
 924                 mono_array_set (data, guint8, 24, sa_in->sin6_scope_id & 0xff);
 925                 mono_array_set (data, guint8, 25,
 926                                                 (sa_in->sin6_scope_id >> 8) & 0xff);
 927                 mono_array_set (data, guint8, 26,
 928                                                 (sa_in->sin6_scope_id >> 16) & 0xff);
 929                 mono_array_set (data, guint8, 27,
 930                                                 (sa_in->sin6_scope_id >> 24) & 0xff);
 931
 932                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_field, data);
 933                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_length_field, &buffer_size);
 934
 935                 return sockaddr_obj;
 936         }
 937 #ifdef HAVE_SYS_UN_H
 938         else if (saddr->sa_family == AF_UNIX) {
 939                 int i;
 940                 int buffer_size = sa_size + 2;
 941
 942                 for (i = 0; i < sa_size; i++)
 943                         mono_array_set (data, guint8, i + 2, saddr->sa_data [i]);
 944
 945                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_field, data);
 946                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_length_field, &buffer_size);
 947
 948                 return sockaddr_obj;
 949         }
 950 #endif
 951         else {
 952                 *werror = WSAEAFNOSUPPORT;
 953                 return NULL;
 954         }
 955 }
 956
 957 static int
 958 get_sockaddr_size (int family)
 959 {
 960         int size;
 961
 962         size = 0;
 963         if (family == AF_INET) {
 964                 size = sizeof (struct sockaddr_in);
 965         } else if (family == AF_INET6) {
 966                 size = sizeof (struct sockaddr_in6);
 967         }
 968 #ifdef HAVE_SYS_UN_H
 969         else if (family == AF_UNIX) {
 970                 size = sizeof (struct sockaddr_un);
 971         }
 972 #endif
 973         return size;
 974 }
 975
 976 MonoObject*
 977 ves_icall_System_Net_Sockets_Socket_LocalEndPoint_internal (SOCKET sock, gint32 af, gint32 *werror)
 978 {
 979         gchar *sa;
 980         socklen_t salen;
 981         int ret;
 982         MonoObject *result;
 983         MonoError error;
 984
 985         *werror = 0;
 986
 987         salen = get_sockaddr_size (convert_family ((MonoAddressFamily)af));
 988         if (salen == 0) {
 989                 *werror = WSAEAFNOSUPPORT;
 990                 return NULL;
 991         }
 992         sa = (salen <= 128) ? (gchar *)alloca (salen) : (gchar *)g_malloc0 (salen);
 993
 994         MONO_ENTER_GC_SAFE;
 995
 996         ret = _wapi_getsockname (sock, (struct sockaddr *)sa, &salen);
 997
 998         MONO_EXIT_GC_SAFE;
 999
1000         if (ret == SOCKET_ERROR) {
1001                 *werror = WSAGetLastError ();
1002                 if (salen > 128)
1003                         g_free (sa);
1004                 return NULL;
1005         }
1006
1007         LOGDEBUG (g_message("%s: bound to %s port %d", __func__, inet_ntoa (((struct sockaddr_in *)&sa)->sin_addr), ntohs (((struct sockaddr_in *)&sa)->sin_port)));
1008
1009         result = create_object_from_sockaddr ((struct sockaddr *)sa, salen, werror, &error);
1010         if (salen > 128)
1011                 g_free (sa);
1012         if (!mono_error_ok (&error))
1013                 mono_error_set_pending_exception (&error);
1014         return result;
1015 }
1016
1017 MonoObject*
1018 ves_icall_System_Net_Sockets_Socket_RemoteEndPoint_internal (SOCKET sock, gint32 af, gint32 *werror)
1019 {
1020         gchar *sa;
1021         socklen_t salen;
1022         int ret;
1023         MonoObject *result;
1024         MonoError error;
1025
1026         *werror = 0;
1027
1028         salen = get_sockaddr_size (convert_family ((MonoAddressFamily)af));
1029         if (salen == 0) {
1030                 *werror = WSAEAFNOSUPPORT;
1031                 return NULL;
1032         }
1033         sa = (salen <= 128) ? (gchar *)alloca (salen) : (gchar *)g_malloc0 (salen);
1034         /* Note: linux returns just 2 for AF_UNIX. Always. */
1035
1036         MONO_ENTER_GC_SAFE;
1037
1038         ret = _wapi_getpeername (sock, (struct sockaddr *)sa, &salen);
1039
1040         MONO_EXIT_GC_SAFE;
1041
1042         if (ret == SOCKET_ERROR) {
1043                 *werror = WSAGetLastError ();
1044                 if (salen > 128)
1045                         g_free (sa);
1046                 return NULL;
1047         }
1048
1049         LOGDEBUG (g_message("%s: connected to %s port %d", __func__, inet_ntoa (((struct sockaddr_in *)&sa)->sin_addr), ntohs (((struct sockaddr_in *)&sa)->sin_port)));
1050
1051         result = create_object_from_sockaddr ((struct sockaddr *)sa, salen, werror, &error);
1052         if (salen > 128)
1053                 g_free (sa);
1054         if (!mono_error_ok (&error))
1055                 mono_error_set_pending_exception (&error);
1056         return result;
1057 }
1058
1059 static struct sockaddr*
1060 create_sockaddr_from_object (MonoObject *saddr_obj, socklen_t *sa_size, gint32 *werror, MonoError *error)
1061 {
1062         MonoDomain *domain = mono_domain_get ();
1063         MonoArray *data;
1064         gint32 family;
1065         int len;
1066
1067         mono_error_init (error);
1068
1069         if (!domain->sockaddr_class)
1070                 domain->sockaddr_class = mono_class_load_from_name (get_socket_assembly (), "System.Net", "SocketAddress");
1071
1072         /* Locate the SocketAddress data buffer in the object */
1073         if (!domain->sockaddr_data_field) {
1074                 domain->sockaddr_data_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Buffer");
1075                 g_assert (domain->sockaddr_data_field);
1076         }
1077
1078         /* Locate the SocketAddress data buffer length in the object */
1079         if (!domain->sockaddr_data_length_field) {
1080                 domain->sockaddr_data_length_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Size");
1081                 g_assert (domain->sockaddr_data_length_field);
1082         }
1083
1084         data = *(MonoArray **)(((char *)saddr_obj) + domain->sockaddr_data_field->offset);
1085
1086         /* The data buffer is laid out as follows:
1087          * byte 0 is the address family low byte
1088          * byte 1 is the address family high byte
1089          * INET:
1090          *      bytes 2 and 3 are the port info
1091          *      the rest is the address info
1092          * UNIX:
1093          *      the rest is the file name
1094          */
1095         len = *(int *)(((char *)saddr_obj) + domain->sockaddr_data_length_field->offset);
1096         g_assert (len >= 2);
1097
1098         family = convert_family ((MonoAddressFamily)(mono_array_get (data, guint8, 0) + (mono_array_get (data, guint8, 1) << 8)));
1099         if (family == AF_INET) {
1100                 struct sockaddr_in *sa;
1101                 guint16 port;
1102                 guint32 address;
1103
1104                 if (len < 8) {
1105                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1106                         return NULL;
1107                 }
1108
1109                 sa = g_new0 (struct sockaddr_in, 1);
1110                 port = (mono_array_get (data, guint8, 2) << 8) +
1111                         mono_array_get (data, guint8, 3);
1112                 address = (mono_array_get (data, guint8, 4) << 24) +
1113                         (mono_array_get (data, guint8, 5) << 16 ) +
1114                         (mono_array_get (data, guint8, 6) << 8) +
1115                         mono_array_get (data, guint8, 7);
1116
1117                 sa->sin_family = family;
1118                 sa->sin_addr.s_addr = htonl (address);
1119                 sa->sin_port = htons (port);
1120
1121                 *sa_size = sizeof (struct sockaddr_in);
1122                 return (struct sockaddr *)sa;
1123         } else if (family == AF_INET6) {
1124                 struct sockaddr_in6 *sa;
1125                 int i;
1126                 guint16 port;
1127                 guint32 scopeid;
1128
1129                 if (len < 28) {
1130                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1131                         return NULL;
1132                 }
1133
1134                 sa = g_new0 (struct sockaddr_in6, 1);
1135                 port = mono_array_get (data, guint8, 3) +
1136                         (mono_array_get (data, guint8, 2) << 8);
1137                 scopeid = mono_array_get (data, guint8, 24) +
1138                         (mono_array_get (data, guint8, 25) << 8) +
1139                         (mono_array_get (data, guint8, 26) << 16) +
1140                         (mono_array_get (data, guint8, 27) << 24);
1141
1142                 sa->sin6_family = family;
1143                 sa->sin6_port = htons (port);
1144                 sa->sin6_scope_id = scopeid;
1145
1146                 for (i = 0; i < 16; i++)
1147                         sa->sin6_addr.s6_addr [i] = mono_array_get (data, guint8, 8 + i);
1148
1149                 *sa_size = sizeof (struct sockaddr_in6);
1150                 return (struct sockaddr *)sa;
1151         }
1152 #ifdef HAVE_SYS_UN_H
1153         else if (family == AF_UNIX) {
1154                 struct sockaddr_un *sock_un;
1155                 int i;
1156
1157                 /* Need a byte for the '\0' terminator/prefix, and the first
1158                  * two bytes hold the SocketAddress family
1159                  */
1160                 if (len - 2 >= sizeof (sock_un->sun_path)) {
1161                         mono_error_set_exception_instance (error, mono_get_exception_index_out_of_range ());
1162                         return NULL;
1163                 }
1164
1165                 sock_un = g_new0 (struct sockaddr_un, 1);
1166
1167                 sock_un->sun_family = family;
1168                 for (i = 0; i < len - 2; i++)
1169                         sock_un->sun_path [i] = mono_array_get (data, guint8, i + 2);
1170
1171                 *sa_size = len;
1172                 return (struct sockaddr *)sock_un;
1173         }
1174 #endif
1175         else {
1176                 *werror = WSAEAFNOSUPPORT;
1177                 return 0;
1178         }
1179 }
1180
1181 void
1182 ves_icall_System_Net_Sockets_Socket_Bind_internal (SOCKET sock, MonoObject *sockaddr, gint32 *werror)
1183 {
1184         MonoError error;
1185         struct sockaddr *sa;
1186         socklen_t sa_size;
1187         int ret;
1188
1189         *werror = 0;
1190
1191         sa = create_sockaddr_from_object (sockaddr, &sa_size, werror, &error);
1192         if (*werror != 0)
1193                 return;
1194         if (!mono_error_ok (&error)) {
1195                 mono_error_set_pending_exception (&error);
1196                 return;
1197         }
1198
1199         LOGDEBUG (g_message("%s: binding to %s port %d", __func__, inet_ntoa (((struct sockaddr_in *)sa)->sin_addr), ntohs (((struct sockaddr_in *)sa)->sin_port)));
1200
1201         ret = _wapi_bind (sock, sa, sa_size);
1202
1203         if (ret == SOCKET_ERROR)
1204                 *werror = WSAGetLastError ();
1205
1206         g_free (sa);
1207 }
1208
1209 enum {
1210         SelectModeRead,
1211         SelectModeWrite,
1212         SelectModeError
1213 };
1214
1215 MonoBoolean
1216 ves_icall_System_Net_Sockets_Socket_Poll_internal (SOCKET sock, gint mode,
1217                                                                                                    gint timeout, gint32 *werror)
1218 {
1219         MonoInternalThread *thread = mono_thread_internal_current ();
1220         mono_pollfd *pfds;
1221         int ret;
1222         gboolean interrupted;
1223         time_t start;
1224
1225         *werror = 0;
1226
1227         pfds = g_new0 (mono_pollfd, 1);
1228         pfds->fd = GPOINTER_TO_INT (sock);
1229
1230         switch (mode) {
1231         case SelectModeRead:
1232                 pfds->events = MONO_POLLIN;
1233                 break;
1234         case SelectModeWrite:
1235                 pfds->events = MONO_POLLOUT;
1236                 break;
1237         default:
1238                 pfds->events = MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL;
1239                 break;
1240         }
1241
1242         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1243         start = time (NULL);
1244
1245         do {
1246                 mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1247                 if (interrupted) {
1248                         g_free (pfds);
1249                         *werror = WSAEINTR;
1250                         return FALSE;
1251                 }
1252
1253                 MONO_ENTER_GC_SAFE;
1254
1255                 ret = mono_poll (pfds, 1, timeout);
1256
1257                 MONO_EXIT_GC_SAFE;
1258
1259                 mono_thread_info_uninstall_interrupt (&interrupted);
1260                 if (interrupted) {
1261                         g_free (pfds);
1262                         *werror = WSAEINTR;
1263                         return FALSE;
1264                 }
1265
1266                 if (timeout > 0 && ret < 0) {
1267                         int err = errno;
1268                         int sec = time (NULL) - start;
1269
1270                         timeout -= sec * 1000;
1271                         if (timeout < 0) {
1272                                 timeout = 0;
1273                         }
1274
1275                         errno = err;
1276                 }
1277
1278                 if (ret == -1 && errno == EINTR) {
1279                         if (mono_thread_test_state (thread, (MonoThreadState)(ThreadState_AbortRequested | ThreadState_StopRequested))) {
1280                                 g_free (pfds);
1281                                 return FALSE;
1282                         }
1283
1284                         /* Suspend requested? */
1285                         mono_thread_interruption_checkpoint ();
1286
1287                         errno = EINTR;
1288                 }
1289         } while (ret == -1 && errno == EINTR);
1290
1291         if (ret == -1) {
1292 #ifdef HOST_WIN32
1293                 *werror = WSAGetLastError ();
1294 #else
1295                 *werror = errno_to_WSA (errno, __func__);
1296 #endif
1297                 g_free (pfds);
1298                 return FALSE;
1299         }
1300
1301         g_free (pfds);
1302         return ret != 0;
1303 }
1304
1305 void
1306 ves_icall_System_Net_Sockets_Socket_Connect_internal (SOCKET sock, MonoObject *sockaddr, gint32 *werror)
1307 {
1308         MonoError error;
1309         struct sockaddr *sa;
1310         socklen_t sa_size;
1311         int ret;
1312         gboolean interrupted;
1313
1314         *werror = 0;
1315
1316         sa = create_sockaddr_from_object (sockaddr, &sa_size, werror, &error);
1317         if (*werror != 0)
1318                 return;
1319         if (!mono_error_ok (&error)) {
1320                 mono_error_set_pending_exception (&error);
1321                 return;
1322         }
1323
1324         LOGDEBUG (g_message("%s: connecting to %s port %d", __func__, inet_ntoa (((struct sockaddr_in *)sa)->sin_addr), ntohs (((struct sockaddr_in *)sa)->sin_port)));
1325
1326         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1327         if (interrupted) {
1328                 *werror = WSAEINTR;
1329                 return;
1330         }
1331
1332         MONO_ENTER_GC_SAFE;
1333
1334         ret = _wapi_connect (sock, sa, sa_size);
1335
1336         MONO_EXIT_GC_SAFE;
1337
1338         if (ret == SOCKET_ERROR)
1339                 *werror = WSAGetLastError ();
1340
1341         mono_thread_info_uninstall_interrupt (&interrupted);
1342         if (interrupted)
1343                 *werror = WSAEINTR;
1344
1345         g_free (sa);
1346 }
1347
1348 /* These #defines from mswsock.h from wine.  Defining them here allows
1349  * us to build this file on a mingw box that doesn't know the magic
1350  * numbers, but still run on a newer windows box that does.
1351  */
1352 #ifndef WSAID_DISCONNECTEX
1353 #define WSAID_DISCONNECTEX {0x7fda2e11,0x8630,0x436f,{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
1354 typedef BOOL (WINAPI *LPFN_DISCONNECTEX)(SOCKET, LPOVERLAPPED, DWORD, DWORD);
1355 #endif
1356
1357 #ifndef WSAID_TRANSMITFILE
1358 #define WSAID_TRANSMITFILE {0xb5367df0,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
1359 typedef BOOL (WINAPI *LPFN_TRANSMITFILE)(SOCKET, HANDLE, DWORD, DWORD, LPOVERLAPPED, LPTRANSMIT_FILE_BUFFERS, DWORD);
1360 #endif
1361
1362 void
1363 ves_icall_System_Net_Sockets_Socket_Disconnect_internal (SOCKET sock, MonoBoolean reuse, gint32 *werror)
1364 {
1365         int ret;
1366         glong output_bytes = 0;
1367         GUID disco_guid = WSAID_DISCONNECTEX;
1368         GUID trans_guid = WSAID_TRANSMITFILE;
1369         LPFN_DISCONNECTEX _wapi_disconnectex = NULL;
1370         LPFN_TRANSMITFILE _wapi_transmitfile = NULL;
1371         gboolean interrupted;
1372
1373         *werror = 0;
1374
1375         LOGDEBUG (g_message("%s: disconnecting from socket %p (reuse %d)", __func__, sock, reuse));
1376
1377         MONO_ENTER_GC_SAFE;
1378
1379         /* I _think_ the extension function pointers need to be looked
1380          * up for each socket.  FIXME: check the best way to store
1381          * pointers to functions in managed objects that still works
1382          * on 64bit platforms.
1383          */
1384         ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER, (gchar *)&disco_guid, sizeof (GUID),
1385                                         (gchar *)&_wapi_disconnectex, sizeof (void *), &output_bytes, NULL, NULL);
1386
1387         MONO_EXIT_GC_SAFE;
1388
1389         if (ret != 0) {
1390                 /* make sure that WSAIoctl didn't put crap in the
1391                  * output pointer
1392                  */
1393                 _wapi_disconnectex = NULL;
1394
1395                 MONO_ENTER_GC_SAFE;
1396
1397                 /*
1398                  * Use the SIO_GET_EXTENSION_FUNCTION_POINTER to
1399                  * determine the address of the disconnect method without
1400                  * taking a hard dependency on a single provider
1401                  *
1402                  * For an explanation of why this is done, you can read
1403                  * the article at http://www.codeproject.com/internet/jbsocketserver3.asp
1404                  */
1405                 ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER, (gchar *)&trans_guid, sizeof(GUID),
1406                                 (gchar *)&_wapi_transmitfile, sizeof(void *), &output_bytes, NULL, NULL);
1407
1408                 MONO_EXIT_GC_SAFE;
1409
1410                 if (ret != 0)
1411                         _wapi_transmitfile = NULL;
1412         }
1413
1414         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1415         if (interrupted) {
1416                 *werror = WSAEINTR;
1417                 return;
1418         }
1419
1420         MONO_ENTER_GC_SAFE;
1421
1422         if (_wapi_disconnectex != NULL) {
1423                 if (!_wapi_disconnectex (sock, NULL, reuse ? TF_REUSE_SOCKET : 0, 0))
1424                         *werror = WSAGetLastError ();
1425         } else if (_wapi_transmitfile != NULL) {
1426                 if (!_wapi_transmitfile (sock, NULL, 0, 0, NULL, NULL, TF_DISCONNECT | (reuse ? TF_REUSE_SOCKET : 0)))
1427                         *werror = WSAGetLastError ();
1428         } else {
1429                 *werror = ERROR_NOT_SUPPORTED;
1430         }
1431
1432         MONO_EXIT_GC_SAFE;
1433
1434         mono_thread_info_uninstall_interrupt (&interrupted);
1435         if (interrupted)
1436                 *werror = WSAEINTR;
1437 }
1438
1439 gint32
1440 ves_icall_System_Net_Sockets_Socket_Receive_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *werror)
1441 {
1442         int ret;
1443         guchar *buf;
1444         gint32 alen;
1445         int recvflags = 0;
1446         gboolean interrupted;
1447         MonoInternalThread* curthread G_GNUC_UNUSED = mono_thread_internal_current ();
1448
1449         *werror = 0;
1450
1451         alen = mono_array_length (buffer);
1452         if (offset > alen - count)
1453                 return 0;
1454
1455         buf = mono_array_addr (buffer, guchar, offset);
1456
1457         recvflags = convert_socketflags (flags);
1458         if (recvflags == -1) {
1459                 *werror = WSAEOPNOTSUPP;
1460                 return 0;
1461         }
1462
1463         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1464         if (interrupted)
1465                 return 0;
1466
1467         MONO_ENTER_GC_SAFE;
1468
1469 #ifdef HOST_WIN32
1470         {
1471                 curthread->interrupt_on_stop = (gpointer)TRUE;
1472                 ret = _wapi_recv (sock, buf, count, recvflags);
1473                 curthread->interrupt_on_stop = (gpointer)FALSE;
1474         }
1475 #else
1476         ret = _wapi_recv (sock, buf, count, recvflags);
1477 #endif
1478
1479         MONO_EXIT_GC_SAFE;
1480
1481         if (ret == SOCKET_ERROR)
1482                 *werror = WSAGetLastError ();
1483
1484         mono_thread_info_uninstall_interrupt (&interrupted);
1485         if (interrupted)
1486                 *werror = WSAEINTR;
1487
1488         if (*werror)
1489                 return 0;
1490
1491         return ret;
1492 }
1493
1494 gint32
1495 ves_icall_System_Net_Sockets_Socket_Receive_array_internal (SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *werror)
1496 {
1497         int ret, count;
1498         gboolean interrupted;
1499         DWORD recv;
1500         WSABUF *wsabufs;
1501         DWORD recvflags = 0;
1502
1503         *werror = 0;
1504
1505         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1506         count = mono_array_length (buffers);
1507
1508         recvflags = convert_socketflags (flags);
1509         if (recvflags == -1) {
1510                 *werror = WSAEOPNOTSUPP;
1511                 return 0;
1512         }
1513
1514         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1515         if (interrupted) {
1516                 *werror = WSAEINTR;
1517                 return 0;
1518         }
1519
1520         MONO_ENTER_GC_SAFE;
1521
1522         ret = WSARecv (sock, wsabufs, count, &recv, &recvflags, NULL, NULL);
1523
1524         MONO_EXIT_GC_SAFE;
1525
1526         if (ret == SOCKET_ERROR)
1527                 *werror = WSAGetLastError ();
1528
1529         mono_thread_info_uninstall_interrupt (&interrupted);
1530         if (interrupted)
1531                 *werror = WSAEINTR;
1532
1533         if (*werror)
1534                 return 0;
1535
1536         return recv;
1537 }
1538
1539 gint32
1540 ves_icall_System_Net_Sockets_Socket_ReceiveFrom_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject **sockaddr, gint32 *werror)
1541 {
1542         MonoError error;
1543         int ret;
1544         guchar *buf;
1545         gint32 alen;
1546         int recvflags = 0;
1547         struct sockaddr *sa;
1548         socklen_t sa_size;
1549         gboolean interrupted;
1550
1551         *werror = 0;
1552
1553         alen = mono_array_length (buffer);
1554         if (offset > alen - count)
1555                 return 0;
1556
1557         sa = create_sockaddr_from_object (*sockaddr, &sa_size, werror, &error);
1558         if (*werror != 0)
1559                 return 0;
1560         if (!mono_error_ok (&error)) {
1561                 mono_error_set_pending_exception (&error);
1562                 return 0;
1563         }
1564
1565         buf = mono_array_addr (buffer, guchar, offset);
1566
1567         recvflags = convert_socketflags (flags);
1568         if (recvflags == -1) {
1569                 *werror = WSAEOPNOTSUPP;
1570                 return 0;
1571         }
1572
1573         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1574         if (interrupted) {
1575                 g_free (sa);
1576                 *werror = WSAEINTR;
1577                 return 0;
1578         }
1579
1580         MONO_ENTER_GC_SAFE;
1581
1582         ret = _wapi_recvfrom (sock, buf, count, recvflags, sa, &sa_size);
1583
1584         MONO_EXIT_GC_SAFE;
1585
1586         if (ret == SOCKET_ERROR)
1587                 *werror = WSAGetLastError ();
1588
1589         mono_thread_info_uninstall_interrupt (&interrupted);
1590
1591         if (interrupted)
1592                 *werror = WSAEINTR;
1593
1594         if (*werror) {
1595                 g_free(sa);
1596                 return 0;
1597         }
1598
1599         /* If we didn't get a socket size, then we're probably a
1600          * connected connection-oriented socket and the stack hasn't
1601          * returned the remote address. All we can do is return null.
1602          */
1603         if (sa_size) {
1604                 *sockaddr = create_object_from_sockaddr (sa, sa_size, werror, &error);
1605                 if (!mono_error_ok (&error)) {
1606                         mono_error_set_pending_exception (&error);
1607                         g_free (sa);
1608                         return 0;
1609                 }
1610         } else {
1611                 *sockaddr = NULL;
1612         }
1613
1614         g_free (sa);
1615
1616         return ret;
1617 }
1618
1619 gint32
1620 ves_icall_System_Net_Sockets_Socket_Send_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *werror)
1621 {
1622         int ret;
1623         guchar *buf;
1624         gint32 alen;
1625         int sendflags = 0;
1626         gboolean interrupted;
1627
1628         *werror = 0;
1629
1630         alen = mono_array_length (buffer);
1631         if (offset > alen - count)
1632                 return 0;
1633
1634         LOGDEBUG (g_message("%s: alen: %d", __func__, alen));
1635
1636         buf = mono_array_addr (buffer, guchar, offset);
1637
1638         LOGDEBUG (g_message("%s: Sending %d bytes", __func__, count));
1639
1640         sendflags = convert_socketflags (flags);
1641         if (sendflags == -1) {
1642                 *werror = WSAEOPNOTSUPP;
1643                 return 0;
1644         }
1645
1646         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1647         if (interrupted) {
1648                 *werror = WSAEINTR;
1649                 return 0;
1650         }
1651
1652         MONO_ENTER_GC_SAFE;
1653
1654         ret = _wapi_send (sock, buf, count, sendflags);
1655
1656         MONO_EXIT_GC_SAFE;
1657
1658         if (ret == SOCKET_ERROR)
1659                 *werror = WSAGetLastError ();
1660
1661         mono_thread_info_uninstall_interrupt (&interrupted);
1662         if (interrupted)
1663                 *werror = WSAEINTR;
1664
1665         if (*werror)
1666                 return 0;
1667
1668         return ret;
1669 }
1670
1671 gint32
1672 ves_icall_System_Net_Sockets_Socket_Send_array_internal (SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *werror)
1673 {
1674         int ret, count;
1675         DWORD sent;
1676         WSABUF *wsabufs;
1677         DWORD sendflags = 0;
1678         gboolean interrupted;
1679
1680         *werror = 0;
1681
1682         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1683         count = mono_array_length (buffers);
1684
1685         sendflags = convert_socketflags (flags);
1686         if (sendflags == -1) {
1687                 *werror = WSAEOPNOTSUPP;
1688                 return 0;
1689         }
1690
1691         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1692         if (interrupted) {
1693                 *werror = WSAEINTR;
1694                 return 0;
1695         }
1696
1697         MONO_ENTER_GC_SAFE;
1698
1699         ret = WSASend (sock, wsabufs, count, &sent, sendflags, NULL, NULL);
1700
1701         MONO_EXIT_GC_SAFE;
1702
1703         if (ret == SOCKET_ERROR)
1704                 *werror = WSAGetLastError ();
1705
1706         mono_thread_info_uninstall_interrupt (&interrupted);
1707         if (interrupted)
1708                 *werror = WSAEINTR;
1709
1710         if (*werror)
1711                 return 0;
1712
1713         return sent;
1714 }
1715
1716 gint32
1717 ves_icall_System_Net_Sockets_Socket_SendTo_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject *sockaddr, gint32 *werror)
1718 {
1719         MonoError error;
1720         int ret;
1721         guchar *buf;
1722         gint32 alen;
1723         int sendflags = 0;
1724         struct sockaddr *sa;
1725         socklen_t sa_size;
1726         gboolean interrupted;
1727
1728         *werror = 0;
1729
1730         alen = mono_array_length (buffer);
1731         if (offset > alen - count) {
1732                 return 0;
1733         }
1734
1735         sa = create_sockaddr_from_object(sockaddr, &sa_size, werror, &error);
1736         if (*werror != 0)
1737                 return 0;
1738         if (!mono_error_ok (&error)) {
1739                 mono_error_set_pending_exception (&error);
1740                 return 0;
1741         }
1742
1743         LOGDEBUG (g_message ("%s: alen: %d", __func__, alen));
1744
1745         buf = mono_array_addr (buffer, guchar, offset);
1746
1747         LOGDEBUG (g_message("%s: Sending %d bytes", __func__, count));
1748
1749         sendflags = convert_socketflags (flags);
1750         if (sendflags == -1) {
1751                 g_free (sa);
1752                 *werror = WSAEOPNOTSUPP;
1753                 return 0;
1754         }
1755
1756         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1757         if (interrupted) {
1758                 g_free (sa);
1759                 *werror = WSAEINTR;
1760                 return 0;
1761         }
1762
1763         MONO_ENTER_GC_SAFE;
1764
1765         ret = _wapi_sendto (sock, buf, count, sendflags, sa, sa_size);
1766
1767         MONO_EXIT_GC_SAFE;
1768
1769         if (ret == SOCKET_ERROR)
1770                 *werror = WSAGetLastError ();
1771
1772         mono_thread_info_uninstall_interrupt (&interrupted);
1773         if (interrupted)
1774                 *werror = WSAEINTR;
1775
1776         g_free(sa);
1777
1778         if (*werror)
1779                 return 0;
1780
1781         return ret;
1782 }
1783
1784 static SOCKET
1785 Socket_to_SOCKET (MonoObject *sockobj)
1786 {
1787         MonoSafeHandle *safe_handle;
1788         MonoClassField *field;
1789
1790         field = mono_class_get_field_from_name (sockobj->vtable->klass, "m_Handle");
1791         safe_handle = ((MonoSafeHandle *)(*(gpointer *)(((char *)sockobj) + field->offset)));
1792
1793         if (safe_handle == NULL)
1794                 return -1;
1795
1796         return (SOCKET)safe_handle->handle;
1797 }
1798
1799 #define POLL_ERRORS (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL)
1800
1801 void
1802 ves_icall_System_Net_Sockets_Socket_Select_internal (MonoArray **sockets, gint32 timeout, gint32 *werror)
1803 {
1804         MonoError error;
1805         MonoInternalThread *thread = mono_thread_internal_current ();
1806         MonoObject *obj;
1807         mono_pollfd *pfds;
1808         int nfds, idx;
1809         int ret;
1810         int i, count;
1811         int mode;
1812         MonoClass *sock_arr_class;
1813         MonoArray *socks;
1814         time_t start;
1815         uintptr_t socks_size;
1816         gboolean interrupted;
1817
1818         *werror = 0;
1819
1820         /* *sockets -> READ, null, WRITE, null, ERROR, null */
1821         count = mono_array_length (*sockets);
1822         nfds = count - 3; /* NULL separators */
1823         pfds = g_new0 (mono_pollfd, nfds);
1824         mode = idx = 0;
1825         for (i = 0; i < count; i++) {
1826                 obj = mono_array_get (*sockets, MonoObject *, i);
1827                 if (obj == NULL) {
1828                         mode++;
1829                         continue;
1830                 }
1831
1832                 if (idx >= nfds) {
1833                         /* The socket array was bogus */
1834                         g_free (pfds);
1835                         *werror = WSAEFAULT;
1836                         return;
1837                 }
1838
1839                 pfds [idx].fd = Socket_to_SOCKET (obj);
1840                 pfds [idx].events = (mode == 0) ? MONO_POLLIN : (mode == 1) ? MONO_POLLOUT : POLL_ERRORS;
1841                 idx++;
1842         }
1843
1844         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1845         start = time (NULL);
1846         do {
1847                 mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1848                 if (interrupted) {
1849                         g_free (pfds);
1850                         *werror = WSAEINTR;
1851                         return;
1852                 }
1853
1854                 MONO_ENTER_GC_SAFE;
1855
1856                 ret = mono_poll (pfds, nfds, timeout);
1857
1858                 MONO_EXIT_GC_SAFE;
1859
1860                 mono_thread_info_uninstall_interrupt (&interrupted);
1861                 if (interrupted) {
1862                         g_free (pfds);
1863                         *werror = WSAEINTR;
1864                         return;
1865                 }
1866
1867                 if (timeout > 0 && ret < 0) {
1868                         int err = errno;
1869                         int sec = time (NULL) - start;
1870
1871                         timeout -= sec * 1000;
1872                         if (timeout < 0)
1873                                 timeout = 0;
1874                         errno = err;
1875                 }
1876
1877                 if (ret == -1 && errno == EINTR) {
1878                         if (mono_thread_test_state (thread, (MonoThreadState)(ThreadState_AbortRequested | ThreadState_StopRequested))) {
1879                                 g_free (pfds);
1880                                 *sockets = NULL;
1881                                 return;
1882                         }
1883
1884                         /* Suspend requested? */
1885                         mono_thread_interruption_checkpoint ();
1886
1887                         errno = EINTR;
1888                 }
1889         } while (ret == -1 && errno == EINTR);
1890
1891         if (ret == -1) {
1892 #ifdef HOST_WIN32
1893                 *werror = WSAGetLastError ();
1894 #else
1895                 *werror = errno_to_WSA (errno, __func__);
1896 #endif
1897                 g_free (pfds);
1898                 return;
1899         }
1900
1901         if (ret == 0) {
1902                 g_free (pfds);
1903                 *sockets = NULL;
1904                 return;
1905         }
1906
1907         sock_arr_class = ((MonoObject *)*sockets)->vtable->klass;
1908         socks_size = ((uintptr_t)ret) + 3; /* space for the NULL delimiters */
1909         socks = mono_array_new_full_checked (mono_domain_get (), sock_arr_class, &socks_size, NULL, &error);
1910         if (!mono_error_ok (&error)) {
1911                 mono_error_set_pending_exception (&error);
1912                 g_free (pfds);
1913                 return;
1914         }
1915
1916         mode = idx = 0;
1917         for (i = 0; i < count && ret > 0; i++) {
1918                 mono_pollfd *pfd;
1919
1920                 obj = mono_array_get (*sockets, MonoObject *, i);
1921                 if (obj == NULL) {
1922                         mode++;
1923                         idx++;
1924                         continue;
1925                 }
1926
1927                 pfd = &pfds [i - mode];
1928                 if (pfd->revents == 0)
1929                         continue;
1930
1931                 ret--;
1932                 if (mode == 0 && (pfd->revents & (MONO_POLLIN | POLL_ERRORS)) != 0) {
1933                         mono_array_setref (socks, idx++, obj);
1934                 } else if (mode == 1 && (pfd->revents & (MONO_POLLOUT | POLL_ERRORS)) != 0) {
1935                         mono_array_setref (socks, idx++, obj);
1936                 } else if ((pfd->revents & POLL_ERRORS) != 0) {
1937                         mono_array_setref (socks, idx++, obj);
1938                 }
1939         }
1940
1941         *sockets = socks;
1942         g_free (pfds);
1943 }
1944
1945 static MonoObject*
1946 int_to_object (MonoDomain *domain, int val, MonoError *error)
1947 {
1948         return mono_value_box_checked (domain, mono_get_int32_class (), &val, error);
1949 }
1950
1951 void
1952 ves_icall_System_Net_Sockets_Socket_GetSocketOption_obj_internal (SOCKET sock, gint32 level, gint32 name, MonoObject **obj_val, gint32 *werror)
1953 {
1954         int system_level = 0;
1955         int system_name = 0;
1956         int ret;
1957         int val = 0;
1958         socklen_t valsize = sizeof (val);
1959         struct linger linger;
1960         socklen_t lingersize = sizeof (linger);
1961         int time_ms = 0;
1962         socklen_t time_ms_size = sizeof (time_ms);
1963 #ifdef SO_PEERCRED
1964 #  if defined(__OpenBSD__)
1965         struct sockpeercred cred;
1966 #  else
1967         struct ucred cred;
1968 #  endif
1969         socklen_t credsize = sizeof (cred);
1970 #endif
1971         MonoError error;
1972         MonoDomain *domain = mono_domain_get ();
1973         MonoObject *obj;
1974         MonoClass *obj_class;
1975         MonoClassField *field;
1976
1977         *werror = 0;
1978
1979 #if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
1980         if (level == SocketOptionLevel_Socket && name == SocketOptionName_ExclusiveAddressUse) {
1981                 system_level = SOL_SOCKET;
1982                 system_name = SO_REUSEADDR;
1983                 ret = 0;
1984         } else
1985 #endif
1986         {
1987                 ret = convert_sockopt_level_and_name ((MonoSocketOptionLevel)level, (MonoSocketOptionName)name, &system_level, &system_name);
1988         }
1989
1990         if (ret == -1) {
1991                 *werror = WSAENOPROTOOPT;
1992                 return;
1993         }
1994         if (ret == -2) {
1995                 *obj_val = int_to_object (domain, 0, &error);
1996                 mono_error_set_pending_exception (&error);
1997                 return;
1998         }
1999
2000         MONO_ENTER_GC_SAFE;
2001
2002         /* No need to deal with MulticastOption names here, because
2003          * you cant getsockopt AddMembership or DropMembership (the
2004          * int getsockopt will error, causing an exception)
2005          */
2006         switch (name) {
2007         case SocketOptionName_Linger:
2008         case SocketOptionName_DontLinger:
2009                 ret = _wapi_getsockopt (sock, system_level, system_name, &linger, &lingersize);
2010                 break;
2011
2012         case SocketOptionName_SendTimeout:
2013         case SocketOptionName_ReceiveTimeout:
2014                 ret = _wapi_getsockopt (sock, system_level, system_name, (char *)&time_ms, &time_ms_size);
2015                 break;
2016
2017 #ifdef SO_PEERCRED
2018         case SocketOptionName_PeerCred:
2019                 ret = _wapi_getsockopt (sock, system_level, system_name, &cred, &credsize);
2020                 break;
2021 #endif
2022
2023         default:
2024                 ret = _wapi_getsockopt (sock, system_level, system_name, &val, &valsize);
2025         }
2026
2027         MONO_EXIT_GC_SAFE;
2028
2029         if (ret == SOCKET_ERROR) {
2030                 *werror = WSAGetLastError ();
2031                 return;
2032         }
2033
2034         switch (name) {
2035         case SocketOptionName_Linger:
2036                 /* build a System.Net.Sockets.LingerOption */
2037                 obj_class = mono_class_load_from_name (get_socket_assembly (),
2038                                                                                            "System.Net.Sockets",
2039                                                                                            "LingerOption");
2040                 obj = mono_object_new_checked (domain, obj_class, &error);
2041                 if (!mono_error_ok (&error)) {
2042                         mono_error_set_pending_exception (&error);
2043                         return;
2044                 }
2045
2046                 /* Locate and set the fields "bool enabled" and "int
2047                  * lingerTime"
2048                  */
2049                 field = mono_class_get_field_from_name(obj_class, "enabled");
2050                 *(guint8 *)(((char *)obj)+field->offset) = linger.l_onoff;
2051
2052                 field = mono_class_get_field_from_name(obj_class, "lingerTime");
2053                 *(guint32 *)(((char *)obj)+field->offset)=linger.l_linger;
2054                 break;
2055         case SocketOptionName_DontLinger:
2056                 /* construct a bool int in val - true if linger is off */
2057                 obj = int_to_object (domain, !linger.l_onoff, &error);
2058                 mono_error_set_pending_exception (&error);
2059                 break;
2060         case SocketOptionName_SendTimeout:
2061         case SocketOptionName_ReceiveTimeout:
2062                 obj = int_to_object (domain, time_ms, &error);
2063                 mono_error_set_pending_exception (&error);
2064                 break;
2065
2066 #ifdef SO_PEERCRED
2067         case SocketOptionName_PeerCred:  {
2068                 /*
2069                  * build a Mono.Posix.PeerCred+PeerCredData if
2070                  * possible
2071                  */
2072                 static MonoImage *mono_posix_image = NULL;
2073                 MonoPeerCredData *cred_data;
2074
2075                 if (mono_posix_image == NULL) {
2076                         mono_posix_image = mono_image_loaded ("Mono.Posix");
2077                         if (!mono_posix_image) {
2078                                 MonoAssembly *sa = mono_assembly_open ("Mono.Posix.dll", NULL);
2079                                 if (!sa) {
2080                                         *werror = WSAENOPROTOOPT;
2081                                         return;
2082                                 } else {
2083                                         mono_posix_image = mono_assembly_get_image (sa);
2084                                 }
2085                         }
2086                 }
2087
2088                 obj_class = mono_class_load_from_name (mono_posix_image,
2089                                                  "Mono.Posix",
2090                                                  "PeerCredData");
2091                 obj = mono_object_new_checked (domain, obj_class, &error);
2092                 if (!mono_error_ok (&error)) {
2093                         mono_error_set_pending_exception (&error);
2094                         return;
2095                 }
2096                 cred_data = (MonoPeerCredData *)obj;
2097                 cred_data->pid = cred.pid;
2098                 cred_data->uid = cred.uid;
2099                 cred_data->gid = cred.gid;
2100                 break;
2101         }
2102 #endif
2103
2104         default:
2105 #if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
2106                 if (level == SocketOptionLevel_Socket && name == SocketOptionName_ExclusiveAddressUse)
2107                         val = val ? 0 : 1;
2108 #endif
2109                 obj = int_to_object (domain, val, &error);
2110                 mono_error_set_pending_exception (&error);
2111         }
2112
2113         *obj_val = obj;
2114 }
2115
2116 void
2117 ves_icall_System_Net_Sockets_Socket_GetSocketOption_arr_internal (SOCKET sock, gint32 level, gint32 name, MonoArray **byte_val, gint32 *werror)
2118 {
2119         int system_level = 0;
2120         int system_name = 0;
2121         int ret;
2122         guchar *buf;
2123         socklen_t valsize;
2124
2125         *werror = 0;
2126
2127         ret = convert_sockopt_level_and_name((MonoSocketOptionLevel)level, (MonoSocketOptionName)name, &system_level,
2128                                                                                  &system_name);
2129         if (ret == -1) {
2130                 *werror = WSAENOPROTOOPT;
2131                 return;
2132         }
2133         if (ret == -2)
2134                 return;
2135
2136         valsize = mono_array_length (*byte_val);
2137         buf = mono_array_addr (*byte_val, guchar, 0);
2138
2139         MONO_ENTER_GC_SAFE;
2140
2141         ret = _wapi_getsockopt (sock, system_level, system_name, buf, &valsize);
2142
2143         MONO_EXIT_GC_SAFE;
2144
2145         if (ret == SOCKET_ERROR)
2146                 *werror = WSAGetLastError ();
2147 }
2148
2149 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2150 static struct in_addr
2151 ipaddress_to_struct_in_addr (MonoObject *ipaddr)
2152 {
2153         struct in_addr inaddr;
2154         MonoClassField *field;
2155
2156         field = mono_class_get_field_from_name (ipaddr->vtable->klass, "m_Address");
2157
2158         /* No idea why .net uses a 64bit type to hold a 32bit value...
2159          *
2160          * Internal value of IPAddess is in little-endian order
2161          */
2162         inaddr.s_addr = GUINT_FROM_LE ((guint32)*(guint64 *)(((char *)ipaddr) + field->offset));
2163
2164         return inaddr;
2165 }
2166
2167 static struct in6_addr
2168 ipaddress_to_struct_in6_addr (MonoObject *ipaddr)
2169 {
2170         struct in6_addr in6addr;
2171         MonoClassField *field;
2172         MonoArray *data;
2173         int i;
2174
2175         field = mono_class_get_field_from_name (ipaddr->vtable->klass, "m_Numbers");
2176         g_assert (field);
2177         data = *(MonoArray **)(((char *)ipaddr) + field->offset);
2178
2179         for (i = 0; i < 8; i++) {
2180                 const guint16 s = GUINT16_TO_BE (mono_array_get (data, guint16, i));
2181
2182 /* Solaris/MacOS have only the 8 bit version. */
2183 #ifndef s6_addr16
2184                 in6addr.s6_addr[2 * i + 1] = (s >> 8) & 0xff;
2185                 in6addr.s6_addr[2 * i] = s & 0xff;
2186 #else
2187                 in6addr.s6_addr16[i] = s;
2188 #endif
2189         }
2190         return in6addr;
2191 }
2192 #endif
2193
2194 #if defined(__APPLE__) || defined(__FreeBSD__)
2195
2196 static int
2197 get_local_interface_id (int family)
2198 {
2199 #if !defined(HAVE_GETIFADDRS) || !defined(HAVE_IF_NAMETOINDEX)
2200         return 0;
2201 #else
2202         struct ifaddrs *ifap = NULL, *ptr;
2203         int idx = 0;
2204
2205         if (getifaddrs (&ifap))
2206                 return 0;
2207
2208         for (ptr = ifap; ptr; ptr = ptr->ifa_next) {
2209                 if (!ptr->ifa_addr || !ptr->ifa_name)
2210                         continue;
2211                 if (ptr->ifa_addr->sa_family != family)
2212                         continue;
2213                 if ((ptr->ifa_flags & IFF_LOOPBACK) != 0)
2214                         continue;
2215                 if ((ptr->ifa_flags & IFF_MULTICAST) == 0)
2216                         continue;
2217
2218                 idx = if_nametoindex (ptr->ifa_name);
2219                 break;
2220         }
2221
2222         freeifaddrs (ifap);
2223         return idx;
2224 #endif
2225 }
2226
2227 #endif /* defined(__APPLE__) || defined(__FreeBSD__) */
2228
2229 void
2230 ves_icall_System_Net_Sockets_Socket_SetSocketOption_internal (SOCKET sock, gint32 level, gint32 name, MonoObject *obj_val, MonoArray *byte_val, gint32 int_val, gint32 *werror)
2231 {
2232         struct linger linger;
2233         int system_level = 0;
2234         int system_name = 0;
2235         int ret;
2236         int sol_ip;
2237         int sol_ipv6;
2238
2239         *werror = 0;
2240
2241         sol_ipv6 = mono_networking_get_ipv6_protocol ();
2242         sol_ip = mono_networking_get_ip_protocol ();
2243
2244         ret = convert_sockopt_level_and_name ((MonoSocketOptionLevel)level, (MonoSocketOptionName)name, &system_level,
2245                                                                                   &system_name);
2246
2247 #if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
2248         if (level == SocketOptionLevel_Socket && name == SocketOptionName_ExclusiveAddressUse) {
2249                 system_name = SO_REUSEADDR;
2250                 int_val = int_val ? 0 : 1;
2251                 ret = 0;
2252         }
2253 #endif
2254
2255         if (ret == -1) {
2256                 *werror = WSAENOPROTOOPT;
2257                 return;
2258         }
2259         if (ret == -2)
2260                 return;
2261
2262         /* Only one of obj_val, byte_val or int_val has data */
2263         if (obj_val) {
2264                 MonoClassField *field;
2265                 int valsize;
2266
2267                 switch (name) {
2268                 case SocketOptionName_Linger:
2269                         /* Dig out "bool enabled" and "int lingerTime"
2270                          * fields
2271                          */
2272                         field = mono_class_get_field_from_name (obj_val->vtable->klass, "enabled");
2273                         linger.l_onoff = *(guint8 *)(((char *)obj_val) + field->offset);
2274                         field = mono_class_get_field_from_name (obj_val->vtable->klass, "lingerTime");
2275                         linger.l_linger = *(guint32 *)(((char *)obj_val) + field->offset);
2276
2277                         valsize = sizeof (linger);
2278                         ret = _wapi_setsockopt (sock, system_level,
2279                                                                         system_name, &linger, valsize);
2280                         break;
2281                 case SocketOptionName_AddMembership:
2282                 case SocketOptionName_DropMembership:
2283 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2284                 {
2285                         MonoObject *address = NULL;
2286
2287                         if (system_level == sol_ipv6) {
2288                                 struct ipv6_mreq mreq6;
2289
2290                                 /*
2291                                  *      Get group address
2292                                  */
2293                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "m_Group");
2294                                 g_assert (field);
2295                                 address = *(MonoObject **)(((char *)obj_val) + field->offset);
2296
2297                                 if (address)
2298                                         mreq6.ipv6mr_multiaddr = ipaddress_to_struct_in6_addr (address);
2299
2300                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "m_Interface");
2301                                 mreq6.ipv6mr_interface = *(guint64 *)(((char *)obj_val) + field->offset);
2302
2303 #if defined(__APPLE__) || defined(__FreeBSD__)
2304                                 /*
2305                                 * Bug #5504:
2306                                 *
2307                                 * Mac OS Lion doesn't allow ipv6mr_interface = 0.
2308                                 *
2309                                 * Tests on Windows and Linux show that the multicast group is only
2310                                 * joined on one NIC when interface = 0, so we simply use the interface
2311                                 * id from the first non-loopback interface (this is also what
2312                                 * Dns.GetHostName (string.Empty) would return).
2313                                 */
2314                                 if (!mreq6.ipv6mr_interface)
2315                                         mreq6.ipv6mr_interface = get_local_interface_id (AF_INET6);
2316 #endif
2317
2318                                 ret = _wapi_setsockopt (sock, system_level,
2319                                                                                 system_name, &mreq6,
2320                                                                                 sizeof (mreq6));
2321                         } else if (system_level == sol_ip) {
2322 #ifdef HAVE_STRUCT_IP_MREQN
2323                                 struct ip_mreqn mreq = {{0}};
2324 #else
2325                                 struct ip_mreq mreq = {{0}};
2326 #endif /* HAVE_STRUCT_IP_MREQN */
2327
2328                                 /*
2329                                  * pain! MulticastOption holds two IPAddress
2330                                  * members, so I have to dig the value out of
2331                                  * those :-(
2332                                  */
2333                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2334                                 address = *(MonoObject **)(((char *)obj_val) + field->offset);
2335
2336                                 /* address might not be defined and if so, set the address to ADDR_ANY.
2337                                  */
2338                                 if (address)
2339                                         mreq.imr_multiaddr = ipaddress_to_struct_in_addr (address);
2340
2341                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "localAddress");
2342                                 address = *(MonoObject **)(((char *)obj_val) + field->offset);
2343
2344 #ifdef HAVE_STRUCT_IP_MREQN
2345                                 if (address)
2346                                         mreq.imr_address = ipaddress_to_struct_in_addr (address);
2347
2348                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "ifIndex");
2349                                 mreq.imr_ifindex = *(gint32 *)(((char *)obj_val) + field->offset);
2350 #else
2351                                 if (address)
2352                                         mreq.imr_interface = ipaddress_to_struct_in_addr (address);
2353 #endif /* HAVE_STRUCT_IP_MREQN */
2354
2355                                 ret = _wapi_setsockopt (sock, system_level,
2356                                                                                 system_name, &mreq,
2357                                                                                 sizeof (mreq));
2358                         }
2359                         break;
2360                 }
2361 #endif /* HAVE_STRUCT_IP_MREQN || HAVE_STRUCT_IP_MREQ */
2362                 default:
2363                         /* Cause an exception to be thrown */
2364                         *werror = WSAEINVAL;
2365                         return;
2366                 }
2367         } else if (byte_val!=NULL) {
2368                 int valsize = mono_array_length (byte_val);
2369                 guchar *buf = mono_array_addr (byte_val, guchar, 0);
2370
2371                 switch(name) {
2372                 case SocketOptionName_DontLinger:
2373                         if (valsize == 1) {
2374                                 linger.l_onoff = (*buf) ? 0 : 1;
2375                                 linger.l_linger = 0;
2376                                 ret = _wapi_setsockopt (sock, system_level, system_name, &linger, sizeof (linger));
2377                         } else {
2378                                 *werror = WSAEINVAL;
2379                         }
2380                         break;
2381                 default:
2382                         ret = _wapi_setsockopt (sock, system_level, system_name, buf, valsize);
2383                         break;
2384                 }
2385         } else {
2386                 /* ReceiveTimeout/SendTimeout get here */
2387                 switch (name) {
2388                 case SocketOptionName_DontLinger:
2389                         linger.l_onoff = !int_val;
2390                         linger.l_linger = 0;
2391                         ret = _wapi_setsockopt (sock, system_level, system_name, &linger, sizeof (linger));
2392                         break;
2393                 case SocketOptionName_MulticastInterface:
2394 #ifndef HOST_WIN32
2395 #ifdef HAVE_STRUCT_IP_MREQN
2396                         int_val = GUINT32_FROM_BE (int_val);
2397                         if ((int_val & 0xff000000) == 0) {
2398                                 /* int_val is interface index */
2399                                 struct ip_mreqn mreq = {{0}};
2400                                 mreq.imr_ifindex = int_val;
2401                                 ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &mreq, sizeof (mreq));
2402                                 break;
2403                         }
2404                         int_val = GUINT32_TO_BE (int_val);
2405 #endif /* HAVE_STRUCT_IP_MREQN */
2406 #endif /* HOST_WIN32 */
2407                         /* int_val is in_addr */
2408                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2409                         break;
2410                 case SocketOptionName_DontFragment:
2411 #ifdef HAVE_IP_MTU_DISCOVER
2412                         /* Fiddle with the value slightly if we're
2413                          * turning DF on
2414                          */
2415                         if (int_val == 1)
2416                                 int_val = IP_PMTUDISC_DO;
2417                         /* Fall through */
2418 #endif
2419
2420                 default:
2421                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2422                 }
2423         }
2424
2425         if (ret == SOCKET_ERROR)
2426                 *werror = WSAGetLastError ();
2427 }
2428
2429 void
2430 ves_icall_System_Net_Sockets_Socket_Shutdown_internal (SOCKET sock, gint32 how, gint32 *werror)
2431 {
2432         int ret;
2433         gboolean interrupted;
2434
2435         *werror = 0;
2436
2437         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
2438         if (interrupted) {
2439                 *werror = WSAEINTR;
2440                 return;
2441         }
2442
2443         MONO_ENTER_GC_SAFE;
2444
2445         /* Currently, the values for how (recv=0, send=1, both=2) match the BSD API */
2446         ret = _wapi_shutdown (sock, how);
2447
2448         MONO_EXIT_GC_SAFE;
2449
2450         if (ret == SOCKET_ERROR)
2451                 *werror = WSAGetLastError ();
2452
2453         mono_thread_info_uninstall_interrupt (&interrupted);
2454         if (interrupted) {
2455                 *werror = WSAEINTR;
2456         }
2457
2458 }
2459
2460 gint
2461 ves_icall_System_Net_Sockets_Socket_IOControl_internal (SOCKET sock, gint32 code, MonoArray *input, MonoArray *output, gint32 *werror)
2462 {
2463         glong output_bytes = 0;
2464         gchar *i_buffer, *o_buffer;
2465         gint i_len, o_len;
2466         gint ret;
2467
2468         *werror = 0;
2469
2470         if ((guint32)code == FIONBIO)
2471                 /* Invalid command. Must use Socket.Blocking */
2472                 return -1;
2473
2474         if (input == NULL) {
2475                 i_buffer = NULL;
2476                 i_len = 0;
2477         } else {
2478                 i_buffer = mono_array_addr (input, gchar, 0);
2479                 i_len = mono_array_length (input);
2480         }
2481
2482         if (output == NULL) {
2483                 o_buffer = NULL;
2484                 o_len = 0;
2485         } else {
2486                 o_buffer = mono_array_addr (output, gchar, 0);
2487                 o_len = mono_array_length (output);
2488         }
2489
2490         MONO_ENTER_GC_SAFE;
2491
2492         ret = WSAIoctl (sock, code, i_buffer, i_len, o_buffer, o_len, &output_bytes, NULL, NULL);
2493
2494         MONO_EXIT_GC_SAFE;
2495
2496         if (ret == SOCKET_ERROR) {
2497                 *werror = WSAGetLastError ();
2498                 return -1;
2499         }
2500
2501         return (gint)output_bytes;
2502 }
2503
2504 static gboolean
2505 addrinfo_to_IPHostEntry (MonoAddressInfo *info, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list, gboolean add_local_ips, MonoError *error)
2506 {
2507         gint32 count, i;
2508         MonoAddressEntry *ai = NULL;
2509         struct in_addr *local_in = NULL;
2510         int nlocal_in = 0;
2511         struct in6_addr *local_in6 = NULL;
2512         int nlocal_in6 = 0;
2513         int addr_index;
2514         MonoDomain *domain = mono_domain_get ();
2515
2516         mono_error_init (error);
2517         addr_index = 0;
2518         *h_aliases = mono_array_new_checked (domain, mono_get_string_class (), 0, error);
2519         return_val_if_nok (error, FALSE);
2520         if (add_local_ips) {
2521                 local_in = (struct in_addr *) mono_get_local_interfaces (AF_INET, &nlocal_in);
2522                 local_in6 = (struct in6_addr *) mono_get_local_interfaces (AF_INET6, &nlocal_in6);
2523                 if (nlocal_in || nlocal_in6) {
2524                         char addr [INET6_ADDRSTRLEN];
2525                         *h_addr_list = mono_array_new_checked (domain, mono_get_string_class (), nlocal_in + nlocal_in6, error);
2526                         if (!is_ok (error))
2527                                 goto leave;
2528
2529                         if (nlocal_in) {
2530                                 MonoString *addr_string;
2531                                 int i;
2532
2533                                 for (i = 0; i < nlocal_in; i++) {
2534                                         MonoAddress maddr;
2535                                         mono_address_init (&maddr, AF_INET, &local_in [i]);
2536                                         if (mono_networking_addr_to_str (&maddr, addr, sizeof (addr))) {
2537                                                 addr_string = mono_string_new (domain, addr);
2538                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2539                                                 addr_index++;
2540                                         }
2541                                 }
2542                         }
2543
2544                         if (nlocal_in6) {
2545                                 MonoString *addr_string;
2546                                 int i;
2547
2548                                 for (i = 0; i < nlocal_in6; i++) {
2549                                         MonoAddress maddr;
2550                                         mono_address_init (&maddr, AF_INET6, &local_in6 [i]);
2551                                         if (mono_networking_addr_to_str (&maddr, addr, sizeof (addr))) {
2552                                                 addr_string = mono_string_new (domain, addr);
2553                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2554                                                 addr_index++;
2555                                         }
2556                                 }
2557                         }
2558
2559                 leave:
2560                         g_free (local_in);
2561                         g_free (local_in6);
2562                         if (info)
2563                                 mono_free_address_info (info);
2564                         return is_ok (error);;
2565                 }
2566
2567                 g_free (local_in);
2568                 g_free (local_in6);
2569         }
2570
2571         for (count = 0, ai = info->entries; ai != NULL; ai = ai->next) {
2572                 if (ai->family != AF_INET && ai->family != AF_INET6)
2573                         continue;
2574                 count++;
2575         }
2576
2577         *h_addr_list = mono_array_new_checked (domain, mono_get_string_class (), count, error);
2578         if (!is_ok (error))
2579                 goto leave2;
2580
2581         for (ai = info->entries, i = 0; ai != NULL; ai = ai->next) {
2582                 MonoAddress maddr;
2583                 MonoString *addr_string;
2584                 char buffer [INET6_ADDRSTRLEN]; /* Max. size for IPv6 */
2585
2586                 if ((ai->family != PF_INET) && (ai->family != PF_INET6))
2587                         continue;
2588
2589                 mono_address_init (&maddr, ai->family, &ai->address);
2590                 if (mono_networking_addr_to_str (&maddr, buffer, sizeof (buffer)))
2591                         addr_string = mono_string_new (domain, buffer);
2592                 else
2593                         addr_string = mono_string_new (domain, "");
2594
2595                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2596
2597                 if (!i) {
2598                         i++;
2599                         if (ai->canonical_name != NULL) {
2600                                 *h_name = mono_string_new (domain, ai->canonical_name);
2601                         } else {
2602                                 *h_name = mono_string_new (domain, buffer);
2603                         }
2604                 }
2605
2606                 addr_index++;
2607         }
2608
2609 leave2:
2610         if (info)
2611                 mono_free_address_info (info);
2612
2613         return is_ok (error);
2614 }
2615
2616 static int
2617 get_addrinfo_family_hint (MonoError *error)
2618 {
2619         int hint;
2620
2621         mono_error_init (error);
2622
2623         hint = get_family_hint (error);
2624         return_val_if_nok (error, 0);
2625
2626         switch (hint) {
2627         case PF_UNSPEC:
2628                 return MONO_HINT_UNSPECIFIED;
2629         case PF_INET:
2630                 return MONO_HINT_IPV4;
2631 #ifdef PF_INET6
2632         case PF_INET6:
2633                 return MONO_HINT_IPV6;
2634 #endif
2635         default:
2636                 g_error ("invalid hint");
2637                 return 0;
2638         }
2639 }
2640
2641 MonoBoolean
2642 ves_icall_System_Net_Dns_GetHostByName_internal (MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2643 {
2644         MonoError error;
2645         gboolean add_local_ips = FALSE, add_info_ok = TRUE;
2646         gchar this_hostname [256];
2647         MonoAddressInfo *info = NULL;
2648         int hint;
2649
2650         char *hostname = mono_string_to_utf8_checked (host, &error);
2651         if (mono_error_set_pending_exception (&error))
2652                 return FALSE;
2653
2654         hint = get_addrinfo_family_hint (&error);
2655         if (!mono_error_ok (&error)) {
2656                 mono_error_set_pending_exception (&error);
2657                 return FALSE;
2658         }
2659
2660         if (*hostname == '\0') {
2661                 add_local_ips = TRUE;
2662                 *h_name = host;
2663         }
2664
2665         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2666                 if (!strcmp (hostname, this_hostname)) {
2667                         add_local_ips = TRUE;
2668                         *h_name = host;
2669                 }
2670         }
2671
2672 #ifdef HOST_WIN32
2673         // Win32 APIs already returns local interface addresses for empty hostname ("")
2674         // so we never want to add them manually.
2675         add_local_ips = FALSE;
2676         if (mono_get_address_info(hostname, 0, MONO_HINT_CANONICAL_NAME | hint, &info))
2677                 add_info_ok = FALSE;
2678 #else
2679         if (*hostname && mono_get_address_info (hostname, 0, MONO_HINT_CANONICAL_NAME | hint, &info))
2680                 add_info_ok = FALSE;
2681 #endif
2682
2683         g_free(hostname);
2684
2685         if (add_info_ok) {
2686                 MonoBoolean result = addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, add_local_ips, &error);
2687                 mono_error_set_pending_exception (&error);
2688                 return result;
2689         }
2690         return FALSE;
2691 }
2692
2693 MonoBoolean
2694 ves_icall_System_Net_Dns_GetHostByAddr_internal (MonoString *addr, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2695 {
2696         char *address;
2697         struct sockaddr_in saddr;
2698         struct sockaddr_in6 saddr6;
2699         MonoAddressInfo *info = NULL;
2700         MonoError error;
2701         gint32 family, hint;
2702         gchar hostname [NI_MAXHOST] = { 0 };
2703         gboolean ret;
2704
2705         address = mono_string_to_utf8_checked (addr, &error);
2706         if (mono_error_set_pending_exception (&error))
2707                 return FALSE;
2708
2709         if (inet_pton (AF_INET, address, &saddr.sin_addr ) == 1) {
2710                 family = AF_INET;
2711                 saddr.sin_family = AF_INET;
2712         } else if (inet_pton (AF_INET6, address, &saddr6.sin6_addr) == 1) {
2713                 family = AF_INET6;
2714                 saddr6.sin6_family = AF_INET6;
2715         } else {
2716                 g_free (address);
2717                 return FALSE;
2718         }
2719
2720         g_free (address);
2721
2722         MONO_ENTER_GC_SAFE;
2723
2724         switch (family) {
2725         case AF_INET: {
2726 #if HAVE_SOCKADDR_IN_SIN_LEN
2727                 saddr.sin_len = sizeof (saddr);
2728 #endif
2729                 ret = getnameinfo ((struct sockaddr*)&saddr, sizeof (saddr), hostname, sizeof (hostname), NULL, 0, 0) == 0;
2730                 break;
2731         }
2732         case AF_INET6: {
2733 #if HAVE_SOCKADDR_IN6_SIN_LEN
2734                 saddr6.sin6_len = sizeof (saddr6);
2735 #endif
2736                 ret = getnameinfo ((struct sockaddr*)&saddr6, sizeof (saddr6), hostname, sizeof (hostname), NULL, 0, 0) == 0;
2737                 break;
2738         }
2739         default:
2740                 g_assert_not_reached ();
2741         }
2742
2743         MONO_EXIT_GC_SAFE;
2744
2745         if (!ret)
2746                 return FALSE;
2747
2748         hint = get_addrinfo_family_hint (&error);
2749         if (!mono_error_ok (&error)) {
2750                 mono_error_set_pending_exception (&error);
2751                 return FALSE;
2752         }
2753         if (mono_get_address_info (hostname, 0, hint | MONO_HINT_CANONICAL_NAME | MONO_HINT_CONFIGURED_ONLY, &info) != 0)
2754                 return FALSE;
2755
2756         MonoBoolean result = addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, FALSE, &error);
2757         mono_error_set_pending_exception (&error);
2758         return result;
2759 }
2760
2761 MonoBoolean
2762 ves_icall_System_Net_Dns_GetHostName_internal (MonoString **h_name)
2763 {
2764         gchar hostname [NI_MAXHOST] = { 0 };
2765         int ret;
2766
2767         ret = gethostname (hostname, sizeof (hostname));
2768         if (ret == -1)
2769                 return FALSE;
2770
2771         *h_name = mono_string_new (mono_domain_get (), hostname);
2772
2773         return TRUE;
2774 }
2775
2776 gboolean
2777 ves_icall_System_Net_Sockets_Socket_SendFile_internal (SOCKET sock, MonoString *filename, MonoArray *pre_buffer, MonoArray *post_buffer, gint flags)
2778 {
2779         HANDLE file;
2780         gint32 werror;
2781         gboolean ret;
2782         gboolean interrupted;
2783         TRANSMIT_FILE_BUFFERS buffers;
2784
2785         if (filename == NULL)
2786                 return FALSE;
2787
2788         /* FIXME: replace file by a proper fd that we can call open and close on, as they are interruptible */
2789
2790         file = ves_icall_System_IO_MonoIO_Open (filename, FileMode_Open, FileAccess_Read, FileShare_Read, 0, &werror);
2791
2792         if (file == INVALID_HANDLE_VALUE) {
2793                 SetLastError (werror);
2794                 return FALSE;
2795         }
2796
2797         memset (&buffers, 0, sizeof (buffers));
2798         if (pre_buffer != NULL) {
2799                 buffers.Head = mono_array_addr (pre_buffer, guchar, 0);
2800                 buffers.HeadLength = mono_array_length (pre_buffer);
2801         }
2802         if (post_buffer != NULL) {
2803                 buffers.Tail = mono_array_addr (post_buffer, guchar, 0);
2804                 buffers.TailLength = mono_array_length (post_buffer);
2805         }
2806
2807         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
2808         if (interrupted) {
2809                 CloseHandle (file);
2810                 SetLastError (WSAEINTR);
2811                 return FALSE;
2812         }
2813
2814         MONO_ENTER_GC_SAFE;
2815
2816         ret = TransmitFile (sock, file, 0, 0, NULL, &buffers, flags);
2817
2818         MONO_EXIT_GC_SAFE;
2819
2820         mono_thread_info_uninstall_interrupt (&interrupted);
2821         if (interrupted) {
2822                 CloseHandle (file);
2823                 SetLastError (WSAEINTR);
2824                 return FALSE;
2825         }
2826
2827         MONO_ENTER_GC_SAFE;
2828
2829         CloseHandle (file);
2830
2831         MONO_EXIT_GC_SAFE;
2832
2833         return ret;
2834 }
2835
2836 gboolean
2837 ves_icall_System_Net_Sockets_Socket_SupportPortReuse (MonoProtocolType proto)
2838 {
2839 #if defined (SO_REUSEPORT) || defined (HOST_WIN32)
2840         return TRUE;
2841 #else
2842 #ifdef __linux__
2843         /* Linux always supports double binding for UDP, even on older kernels. */
2844         if (proto == ProtocolType_Udp)
2845                 return TRUE;
2846 #endif
2847         return FALSE;
2848 #endif
2849 }
2850
2851 void
2852 mono_network_init (void)
2853 {
2854         mono_networking_init ();
2855 }
2856
2857 void
2858 mono_network_cleanup (void)
2859 {
2860         _wapi_cleanup_networking ();
2861         mono_networking_shutdown ();
2862 }
2863
2864 void
2865 icall_cancel_blocking_socket_operation (MonoThread *thread)
2866 {
2867         MonoInternalThread *internal;
2868
2869         internal = thread->internal_thread;
2870         g_assert (internal);
2871
2872         mono_thread_info_abort_socket_syscall_for_close (MONO_UINT_TO_NATIVE_THREAD_ID (internal->tid));
2873 }
2874
2875 #endif /* #ifndef DISABLE_SOCKETS */