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 #ifdef HOST_WIN32
  98 #include "mono/metadata/socket-io-windows-internals.h"
  99 #endif
 100
 101 #define LOGDEBUG(...)
 102 /* define LOGDEBUG(...) g_message(__VA_ARGS__)  */
 103
 104 static void
 105 abort_syscall (gpointer data)
 106 {
 107         mono_thread_info_abort_socket_syscall_for_close ((MonoNativeThreadId) (gsize) data);
 108 }
 109
 110 static gint32
 111 convert_family (MonoAddressFamily mono_family)
 112 {
 113         switch (mono_family) {
 114         case AddressFamily_Unknown:
 115         case AddressFamily_ImpLink:
 116         case AddressFamily_Pup:
 117         case AddressFamily_Chaos:
 118         case AddressFamily_Iso:
 119         case AddressFamily_Ecma:
 120         case AddressFamily_DataKit:
 121         case AddressFamily_Ccitt:
 122         case AddressFamily_DataLink:
 123         case AddressFamily_Lat:
 124         case AddressFamily_HyperChannel:
 125         case AddressFamily_NetBios:
 126         case AddressFamily_VoiceView:
 127         case AddressFamily_FireFox:
 128         case AddressFamily_Banyan:
 129         case AddressFamily_Atm:
 130         case AddressFamily_Cluster:
 131         case AddressFamily_Ieee12844:
 132         case AddressFamily_NetworkDesigners:
 133                 g_warning ("System.Net.Sockets.AddressFamily has unsupported value 0x%x", mono_family);
 134                 return -1;
 135         case AddressFamily_Unspecified:
 136                 return AF_UNSPEC;
 137         case AddressFamily_Unix:
 138                 return AF_UNIX;
 139         case AddressFamily_InterNetwork:
 140                 return AF_INET;
 141         case AddressFamily_AppleTalk:
 142                 return AF_APPLETALK;
 143         case AddressFamily_InterNetworkV6:
 144                 return AF_INET6;
 145         case AddressFamily_DecNet:
 146 #ifdef AF_DECnet
 147                 return AF_DECnet;
 148 #else
 149                 return -1;
 150 #endif
 151         case AddressFamily_Ipx:
 152 #ifdef AF_IPX
 153                 return AF_IPX;
 154 #else
 155                 return -1;
 156 #endif
 157         case AddressFamily_Sna:
 158 #ifdef AF_SNA
 159                 return AF_SNA;
 160 #else
 161                 return -1;
 162 #endif
 163         case AddressFamily_Irda:
 164 #ifdef AF_IRDA
 165                 return AF_IRDA;
 166 #else
 167                 return -1;
 168 #endif
 169         default:
 170                 g_warning ("System.Net.Sockets.AddressFamily has unknown value 0x%x", mono_family);
 171                 return -1;
 172         }
 173 }
 174
 175 static MonoAddressFamily
 176 convert_to_mono_family (guint16 af_family)
 177 {
 178         switch (af_family) {
 179         case AF_UNSPEC:
 180                 return AddressFamily_Unspecified;
 181         case AF_UNIX:
 182                 return AddressFamily_Unix;
 183         case AF_INET:
 184                 return AddressFamily_InterNetwork;
 185 #ifdef AF_IPX
 186         case AF_IPX:
 187                 return AddressFamily_Ipx;
 188 #endif
 189 #ifdef AF_SNA
 190         case AF_SNA:
 191                 return AddressFamily_Sna;
 192 #endif
 193 #ifdef AF_DECnet
 194         case AF_DECnet:
 195                 return AddressFamily_DecNet;
 196 #endif
 197         case AF_APPLETALK:
 198                 return AddressFamily_AppleTalk;
 199         case AF_INET6:
 200                 return AddressFamily_InterNetworkV6;
 201 #ifdef AF_IRDA
 202         case AF_IRDA:
 203                 return AddressFamily_Irda;
 204 #endif
 205         default:
 206                 g_warning ("unknown address family 0x%x", af_family);
 207                 return AddressFamily_Unknown;
 208         }
 209 }
 210
 211 static gint32
 212 convert_type (MonoSocketType mono_type)
 213 {
 214         switch (mono_type) {
 215         case SocketType_Stream:
 216                 return SOCK_STREAM;
 217         case SocketType_Dgram:
 218                 return SOCK_DGRAM;
 219         case SocketType_Raw:
 220                 return SOCK_RAW;
 221         case SocketType_Rdm:
 222 #ifdef SOCK_RDM
 223                 return SOCK_RDM;
 224 #else
 225                 return -1;
 226 #endif
 227         case SocketType_Seqpacket:
 228                 return SOCK_SEQPACKET;
 229         case SocketType_Unknown:
 230                 g_warning ("System.Net.Sockets.SocketType has unsupported value 0x%x", mono_type);
 231                 return -1;
 232         default:
 233                 g_warning ("System.Net.Sockets.SocketType has unknown value 0x%x", mono_type);
 234                 return -1;
 235         }
 236 }
 237
 238 static gint32
 239 convert_proto (MonoProtocolType mono_proto)
 240 {
 241         switch (mono_proto) {
 242         case ProtocolType_IP:
 243         case ProtocolType_IPv6:
 244         case ProtocolType_Icmp:
 245         case ProtocolType_Igmp:
 246         case ProtocolType_Ggp:
 247         case ProtocolType_Tcp:
 248         case ProtocolType_Pup:
 249         case ProtocolType_Udp:
 250         case ProtocolType_Idp:
 251                 /* These protocols are known (on my system at least) */
 252                 return mono_proto;
 253         case ProtocolType_ND:
 254         case ProtocolType_Raw:
 255         case ProtocolType_Ipx:
 256         case ProtocolType_Spx:
 257         case ProtocolType_SpxII:
 258         case ProtocolType_Unknown:
 259                 /* These protocols arent */
 260                 g_warning ("System.Net.Sockets.ProtocolType has unsupported value 0x%x", mono_proto);
 261                 return -1;
 262         default:
 263                 return -1;
 264         }
 265 }
 266
 267 /* Convert MonoSocketFlags */
 268 static gint32
 269 convert_socketflags (gint32 sflags)
 270 {
 271         gint32 flags = 0;
 272
 273         if (!sflags)
 274                 /* SocketFlags.None */
 275                 return 0;
 276
 277         if (sflags & ~(SocketFlags_OutOfBand | SocketFlags_MaxIOVectorLength | SocketFlags_Peek |
 278                         SocketFlags_DontRoute | SocketFlags_Partial))
 279                 /* Contains invalid flag values */
 280                 return -1;
 281
 282         if (sflags & SocketFlags_OutOfBand)
 283                 flags |= MSG_OOB;
 284         if (sflags & SocketFlags_Peek)
 285                 flags |= MSG_PEEK;
 286         if (sflags & SocketFlags_DontRoute)
 287                 flags |= MSG_DONTROUTE;
 288
 289         /* Ignore Partial - see bug 349688.  Don't return -1, because
 290          * according to the comment in that bug ms runtime doesn't for
 291          * UDP sockets (this means we will silently ignore it for TCP
 292          * too)
 293          */
 294 #ifdef MSG_MORE
 295         if (sflags & SocketFlags_Partial)
 296                 flags |= MSG_MORE;
 297 #endif
 298 #if 0
 299         /* Don't do anything for MaxIOVectorLength */
 300         if (sflags & SocketFlags_MaxIOVectorLength)
 301                 return -1;
 302 #endif
 303         return flags;
 304 }
 305
 306 /*
 307  * Returns:
 308  *    0 on success (mapped mono_level and mono_name to system_level and system_name
 309  *   -1 on error
 310  *   -2 on non-fatal error (ie, must ignore)
 311  */
 312 static gint32
 313 convert_sockopt_level_and_name (MonoSocketOptionLevel mono_level, MonoSocketOptionName mono_name, int *system_level, int *system_name)
 314 {
 315         switch (mono_level) {
 316         case SocketOptionLevel_Socket:
 317                 *system_level = SOL_SOCKET;
 318
 319                 switch (mono_name) {
 320                 case SocketOptionName_DontLinger:
 321                         /* This is SO_LINGER, because the setsockopt
 322                          * internal call maps DontLinger to SO_LINGER
 323                          * with l_onoff=0
 324                          */
 325                         *system_name = SO_LINGER;
 326                         break;
 327                 case SocketOptionName_Debug:
 328                         *system_name = SO_DEBUG;
 329                         break;
 330 #ifdef SO_ACCEPTCONN
 331                 case SocketOptionName_AcceptConnection:
 332                         *system_name = SO_ACCEPTCONN;
 333                         break;
 334 #endif
 335                 case SocketOptionName_ReuseAddress:
 336                         *system_name = SO_REUSEADDR;
 337                         break;
 338                 case SocketOptionName_KeepAlive:
 339                         *system_name = SO_KEEPALIVE;
 340                         break;
 341                 case SocketOptionName_DontRoute:
 342                         *system_name = SO_DONTROUTE;
 343                         break;
 344                 case SocketOptionName_Broadcast:
 345                         *system_name = SO_BROADCAST;
 346                         break;
 347                 case SocketOptionName_Linger:
 348                         *system_name = SO_LINGER;
 349                         break;
 350                 case SocketOptionName_OutOfBandInline:
 351                         *system_name = SO_OOBINLINE;
 352                         break;
 353                 case SocketOptionName_SendBuffer:
 354                         *system_name = SO_SNDBUF;
 355                         break;
 356                 case SocketOptionName_ReceiveBuffer:
 357                         *system_name = SO_RCVBUF;
 358                         break;
 359                 case SocketOptionName_SendLowWater:
 360                         *system_name = SO_SNDLOWAT;
 361                         break;
 362                 case SocketOptionName_ReceiveLowWater:
 363                         *system_name = SO_RCVLOWAT;
 364                         break;
 365                 case SocketOptionName_SendTimeout:
 366                         *system_name = SO_SNDTIMEO;
 367                         break;
 368                 case SocketOptionName_ReceiveTimeout:
 369                         *system_name = SO_RCVTIMEO;
 370                         break;
 371                 case SocketOptionName_Error:
 372                         *system_name = SO_ERROR;
 373                         break;
 374                 case SocketOptionName_Type:
 375                         *system_name = SO_TYPE;
 376                         break;
 377 #ifdef SO_PEERCRED
 378                 case SocketOptionName_PeerCred:
 379                         *system_name = SO_PEERCRED;
 380                         break;
 381 #endif
 382                 case SocketOptionName_ExclusiveAddressUse:
 383 #ifdef SO_EXCLUSIVEADDRUSE
 384                         *system_name = SO_EXCLUSIVEADDRUSE;
 385                         break;
 386 #endif
 387                 case SocketOptionName_UseLoopback:
 388 #ifdef SO_USELOOPBACK
 389                         *system_name = SO_USELOOPBACK;
 390                         break;
 391 #endif
 392                 case SocketOptionName_MaxConnections:
 393 #ifdef SO_MAXCONN
 394                         *system_name = SO_MAXCONN;
 395                         break;
 396 #elif defined(SOMAXCONN)
 397                         *system_name = SOMAXCONN;
 398                         break;
 399 #endif
 400                 default:
 401                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at Socket level", mono_name);
 402                         return -1;
 403                 }
 404                 break;
 405
 406         case SocketOptionLevel_IP:
 407                 *system_level = mono_networking_get_ip_protocol ();
 408
 409                 switch (mono_name) {
 410                 case SocketOptionName_IPOptions:
 411                         *system_name = IP_OPTIONS;
 412                         break;
 413 #ifdef IP_HDRINCL
 414                 case SocketOptionName_HeaderIncluded:
 415                         *system_name = IP_HDRINCL;
 416                         break;
 417 #endif
 418 #ifdef IP_TOS
 419                 case SocketOptionName_TypeOfService:
 420                         *system_name = IP_TOS;
 421                         break;
 422 #endif
 423 #ifdef IP_TTL
 424                 case SocketOptionName_IpTimeToLive:
 425                         *system_name = IP_TTL;
 426                         break;
 427 #endif
 428                 case SocketOptionName_MulticastInterface:
 429                         *system_name = IP_MULTICAST_IF;
 430                         break;
 431                 case SocketOptionName_MulticastTimeToLive:
 432                         *system_name = IP_MULTICAST_TTL;
 433                         break;
 434                 case SocketOptionName_MulticastLoopback:
 435                         *system_name = IP_MULTICAST_LOOP;
 436                         break;
 437                 case SocketOptionName_AddMembership:
 438                         *system_name = IP_ADD_MEMBERSHIP;
 439                         break;
 440                 case SocketOptionName_DropMembership:
 441                         *system_name = IP_DROP_MEMBERSHIP;
 442                         break;
 443 #ifdef HAVE_IP_PKTINFO
 444                 case SocketOptionName_PacketInformation:
 445                         *system_name = IP_PKTINFO;
 446                         break;
 447 #endif /* HAVE_IP_PKTINFO */
 448
 449                 case SocketOptionName_DontFragment:
 450 #ifdef HAVE_IP_DONTFRAGMENT
 451                         *system_name = IP_DONTFRAGMENT;
 452                         break;
 453 #elif defined HAVE_IP_MTU_DISCOVER
 454                         /* Not quite the same */
 455                         *system_name = IP_MTU_DISCOVER;
 456                         break;
 457 #else
 458                         /* If the flag is not available on this system, we can ignore this error */
 459                         return -2;
 460 #endif /* HAVE_IP_DONTFRAGMENT */
 461                 case SocketOptionName_AddSourceMembership:
 462                 case SocketOptionName_DropSourceMembership:
 463                 case SocketOptionName_BlockSource:
 464                 case SocketOptionName_UnblockSource:
 465                         /* Can't figure out how to map these, so fall
 466                          * through
 467                          */
 468                 default:
 469                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at IP level", mono_name);
 470                         return -1;
 471                 }
 472                 break;
 473
 474         case SocketOptionLevel_IPv6:
 475                 *system_level = mono_networking_get_ipv6_protocol ();
 476
 477                 switch (mono_name) {
 478                 case SocketOptionName_IpTimeToLive:
 479                 case SocketOptionName_HopLimit:
 480                         *system_name = IPV6_UNICAST_HOPS;
 481                         break;
 482                 case SocketOptionName_MulticastInterface:
 483                         *system_name = IPV6_MULTICAST_IF;
 484                         break;
 485                 case SocketOptionName_MulticastTimeToLive:
 486                         *system_name = IPV6_MULTICAST_HOPS;
 487                         break;
 488                 case SocketOptionName_MulticastLoopback:
 489                         *system_name = IPV6_MULTICAST_LOOP;
 490                         break;
 491                 case SocketOptionName_AddMembership:
 492                         *system_name = IPV6_JOIN_GROUP;
 493                         break;
 494                 case SocketOptionName_DropMembership:
 495                         *system_name = IPV6_LEAVE_GROUP;
 496                         break;
 497                 case SocketOptionName_IPv6Only:
 498 #ifdef IPV6_V6ONLY
 499                         *system_name = IPV6_V6ONLY;
 500 #else
 501                         return -1;
 502 #endif
 503                         break;
 504                 case SocketOptionName_PacketInformation:
 505 #ifdef HAVE_IPV6_PKTINFO
 506                         *system_name = IPV6_PKTINFO;
 507 #endif
 508                         break;
 509                 case SocketOptionName_HeaderIncluded:
 510                 case SocketOptionName_IPOptions:
 511                 case SocketOptionName_TypeOfService:
 512                 case SocketOptionName_DontFragment:
 513                 case SocketOptionName_AddSourceMembership:
 514                 case SocketOptionName_DropSourceMembership:
 515                 case SocketOptionName_BlockSource:
 516                 case SocketOptionName_UnblockSource:
 517                         /* Can't figure out how to map these, so fall
 518                          * through
 519                          */
 520                 default:
 521                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at IPv6 level", mono_name);
 522                         return -1;
 523                 }
 524                 break;  /* SocketOptionLevel_IPv6 */
 525
 526         case SocketOptionLevel_Tcp:
 527                 *system_level = mono_networking_get_tcp_protocol ();
 528
 529                 switch (mono_name) {
 530                 case SocketOptionName_NoDelay:
 531                         *system_name = TCP_NODELAY;
 532                         break;
 533 #if 0
 534                         /* The documentation is talking complete
 535                          * bollocks here: rfc-1222 is titled
 536                          * 'Advancing the NSFNET Routing Architecture'
 537                          * and doesn't mention either of the words
 538                          * "expedite" or "urgent".
 539                          */
 540                 case SocketOptionName_BsdUrgent:
 541                 case SocketOptionName_Expedited:
 542 #endif
 543                 default:
 544                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at TCP level", mono_name);
 545                         return -1;
 546                 }
 547                 break;
 548
 549         case SocketOptionLevel_Udp:
 550                 g_warning ("System.Net.Sockets.SocketOptionLevel has unsupported value 0x%x", mono_level);
 551
 552                 switch(mono_name) {
 553                 case SocketOptionName_NoChecksum:
 554                 case SocketOptionName_ChecksumCoverage:
 555                 default:
 556                         g_warning ("System.Net.Sockets.SocketOptionName 0x%x is not supported at UDP level", mono_name);
 557                         return -1;
 558                 }
 559                 return -1;
 560                 break;
 561
 562         default:
 563                 g_warning ("System.Net.Sockets.SocketOptionLevel has unknown value 0x%x", mono_level);
 564                 return -1;
 565         }
 566
 567         return 0;
 568 }
 569
 570 static MonoImage*
 571 get_socket_assembly (void)
 572 {
 573         MonoDomain *domain = mono_domain_get ();
 574
 575         if (domain->socket_assembly == NULL) {
 576                 MonoImage *socket_assembly;
 577
 578                 socket_assembly = mono_image_loaded ("System");
 579                 if (!socket_assembly) {
 580                         MonoAssembly *sa = mono_assembly_open ("System.dll", NULL);
 581
 582                         if (!sa) {
 583                                 g_assert_not_reached ();
 584                         } else {
 585                                 socket_assembly = mono_assembly_get_image (sa);
 586                         }
 587                 }
 588                 mono_atomic_store_release (&domain->socket_assembly, socket_assembly);
 589         }
 590
 591         return domain->socket_assembly;
 592 }
 593
 594 static gint32
 595 get_family_hint (MonoError *error)
 596 {
 597         MonoDomain *domain = mono_domain_get ();
 598
 599         mono_error_init (error);
 600
 601         if (!domain->inet_family_hint) {
 602                 MonoImage *socket_assembly;
 603                 MonoClass *socket_class;
 604                 MonoClassField *ipv6_field, *ipv4_field;
 605                 gint32 ipv6_enabled = -1, ipv4_enabled = -1;
 606                 MonoVTable *vtable;
 607
 608                 socket_assembly = get_socket_assembly ();
 609                 g_assert (socket_assembly);
 610
 611                 socket_class = mono_class_load_from_name (socket_assembly, "System.Net.Sockets", "Socket");
 612
 613                 ipv4_field = mono_class_get_field_from_name (socket_class, "ipv4_supported");
 614                 g_assert (ipv4_field);
 615
 616                 ipv6_field = mono_class_get_field_from_name (socket_class, "ipv6_supported");
 617                 g_assert (ipv6_field);
 618
 619                 vtable = mono_class_vtable (mono_domain_get (), socket_class);
 620                 g_assert (vtable);
 621
 622                 mono_runtime_class_init_full (vtable, error);
 623                 return_val_if_nok (error, -1);
 624
 625                 mono_field_static_get_value_checked (vtable, ipv4_field, &ipv4_enabled, error);
 626                 return_val_if_nok (error, -1);
 627                 mono_field_static_get_value_checked (vtable, ipv6_field, &ipv6_enabled, error);
 628                 return_val_if_nok (error, -1);
 629
 630                 mono_domain_lock (domain);
 631                 if (ipv4_enabled == 1 && ipv6_enabled == 1) {
 632                         domain->inet_family_hint = 1;
 633                 } else if (ipv4_enabled == 1) {
 634                         domain->inet_family_hint = 2;
 635                 } else {
 636                         domain->inet_family_hint = 3;
 637                 }
 638                 mono_domain_unlock (domain);
 639         }
 640         switch (domain->inet_family_hint) {
 641         case 1: return PF_UNSPEC;
 642         case 2: return PF_INET;
 643         case 3: return PF_INET6;
 644         default:
 645                 return PF_UNSPEC;
 646         }
 647 }
 648
 649 gpointer
 650 ves_icall_System_Net_Sockets_Socket_Socket_internal (MonoObject *this_obj, gint32 family, gint32 type, gint32 proto, gint32 *werror)
 651 {
 652         SOCKET sock;
 653         gint32 sock_family;
 654         gint32 sock_proto;
 655         gint32 sock_type;
 656
 657         *werror = 0;
 658
 659         sock_family = convert_family ((MonoAddressFamily)family);
 660         if (sock_family == -1) {
 661                 *werror = WSAEAFNOSUPPORT;
 662                 return NULL;
 663         }
 664
 665         sock_proto = convert_proto ((MonoProtocolType)proto);
 666         if (sock_proto == -1) {
 667                 *werror = WSAEPROTONOSUPPORT;
 668                 return NULL;
 669         }
 670
 671         sock_type = convert_type ((MonoSocketType)type);
 672         if (sock_type == -1) {
 673                 *werror = WSAESOCKTNOSUPPORT;
 674                 return NULL;
 675         }
 676
 677         sock = _wapi_socket (sock_family, sock_type, sock_proto,
 678                              NULL, 0, WSA_FLAG_OVERLAPPED);
 679
 680         if (sock == INVALID_SOCKET) {
 681                 *werror = WSAGetLastError ();
 682                 return NULL;
 683         }
 684
 685         return GUINT_TO_POINTER (sock);
 686 }
 687
 688 /* FIXME: the SOCKET parameter (here and in other functions in this
 689  * file) is really an IntPtr which needs to be converted to a guint32.
 690  */
 691 void
 692 ves_icall_System_Net_Sockets_Socket_Close_internal (SOCKET sock, gint32 *werror)
 693 {
 694         LOGDEBUG (g_message ("%s: closing 0x%x", __func__, sock));
 695
 696         *werror = 0;
 697
 698         /* Clear any pending work item from this socket if the underlying
 699          * polling system does not notify when the socket is closed */
 700         mono_threadpool_ms_io_remove_socket (GPOINTER_TO_INT (sock));
 701
 702         MONO_ENTER_GC_SAFE;
 703         closesocket (sock);
 704         MONO_EXIT_GC_SAFE;
 705 }
 706
 707 gint32
 708 ves_icall_System_Net_Sockets_SocketException_WSAGetLastError_internal (void)
 709 {
 710         LOGDEBUG (g_message("%s: returning %d", __func__, WSAGetLastError ()));
 711
 712         return WSAGetLastError ();
 713 }
 714
 715 gint32
 716 ves_icall_System_Net_Sockets_Socket_Available_internal (SOCKET sock, gint32 *werror)
 717 {
 718         int ret;
 719         int amount;
 720
 721         *werror = 0;
 722
 723         /* FIXME: this might require amount to be unsigned long. */
 724         ret = ioctlsocket (sock, FIONREAD, &amount);
 725         if (ret == SOCKET_ERROR) {
 726                 *werror = WSAGetLastError ();
 727                 return 0;
 728         }
 729
 730         return amount;
 731 }
 732
 733 void
 734 ves_icall_System_Net_Sockets_Socket_Blocking_internal (SOCKET sock, gboolean block, gint32 *werror)
 735 {
 736         int ret;
 737
 738         *werror = 0;
 739
 740         /*
 741          * block == TRUE/FALSE means we will block/not block.
 742          * But the ioctlsocket call takes TRUE/FALSE for non-block/block
 743          */
 744         block = !block;
 745
 746         ret = ioctlsocket (sock, FIONBIO, (gulong *)&block);
 747         if (ret == SOCKET_ERROR)
 748                 *werror = WSAGetLastError ();
 749 }
 750
 751 gpointer
 752 ves_icall_System_Net_Sockets_Socket_Accept_internal (SOCKET sock, gint32 *werror, gboolean blocking)
 753 {
 754         gboolean interrupted;
 755         SOCKET newsock;
 756
 757         *werror = 0;
 758
 759         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
 760         if (interrupted) {
 761                 *werror = WSAEINTR;
 762                 return NULL;
 763         }
 764
 765         MONO_ENTER_GC_SAFE;
 766
 767 #ifdef HOST_WIN32
 768         {
 769                 MonoInternalThread *curthread = mono_thread_internal_current ();
 770                 curthread->interrupt_on_stop = (gpointer)TRUE;
 771                 newsock = alertable_accept (sock, NULL, 0, blocking);
 772                 curthread->interrupt_on_stop = (gpointer)FALSE;
 773         }
 774 #else
 775         newsock = _wapi_accept (sock, NULL, 0);
 776 #endif
 777
 778         MONO_EXIT_GC_SAFE;
 779
 780         if (newsock == INVALID_SOCKET)
 781                 *werror = WSAGetLastError ();
 782
 783         mono_thread_info_uninstall_interrupt (&interrupted);
 784         if (interrupted)
 785                 *werror = WSAEINTR;
 786
 787         if (*werror)
 788                 return NULL;
 789
 790         return GUINT_TO_POINTER (newsock);
 791 }
 792
 793 void
 794 ves_icall_System_Net_Sockets_Socket_Listen_internal(SOCKET sock, guint32 backlog, gint32 *werror)
 795 {
 796         int ret;
 797
 798         *werror = 0;
 799
 800         MONO_ENTER_GC_SAFE;
 801
 802         ret = _wapi_listen (sock, backlog);
 803
 804         MONO_EXIT_GC_SAFE;
 805
 806         if (ret == SOCKET_ERROR)
 807                 *werror = WSAGetLastError ();
 808 }
 809
 810 // Check whether it's ::ffff::0:0.
 811 static gboolean
 812 is_ipv4_mapped_any (const struct in6_addr *addr)
 813 {
 814         int i;
 815
 816         for (i = 0; i < 10; i++) {
 817                 if (addr->s6_addr [i])
 818                         return FALSE;
 819         }
 820         if ((addr->s6_addr [10] != 0xff) || (addr->s6_addr [11] != 0xff))
 821                 return FALSE;
 822         for (i = 12; i < 16; i++) {
 823                 if (addr->s6_addr [i])
 824                         return FALSE;
 825         }
 826         return TRUE;
 827 }
 828
 829 static MonoObject*
 830 create_object_from_sockaddr (struct sockaddr *saddr, int sa_size, gint32 *werror, MonoError *error)
 831 {
 832         MonoDomain *domain = mono_domain_get ();
 833         MonoObject *sockaddr_obj;
 834         MonoArray *data;
 835         MonoAddressFamily family;
 836
 837         mono_error_init (error);
 838
 839         /* Build a System.Net.SocketAddress object instance */
 840         if (!domain->sockaddr_class)
 841                 domain->sockaddr_class = mono_class_load_from_name (get_socket_assembly (), "System.Net", "SocketAddress");
 842         sockaddr_obj = mono_object_new_checked (domain, domain->sockaddr_class, error);
 843         return_val_if_nok (error, NULL);
 844
 845         /* Locate the SocketAddress data buffer in the object */
 846         if (!domain->sockaddr_data_field) {
 847                 domain->sockaddr_data_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Buffer");
 848                 g_assert (domain->sockaddr_data_field);
 849         }
 850
 851         /* Locate the SocketAddress data buffer length in the object */
 852         if (!domain->sockaddr_data_length_field) {
 853                 domain->sockaddr_data_length_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Size");
 854                 g_assert (domain->sockaddr_data_length_field);
 855         }
 856
 857         /* May be the +2 here is too conservative, as sa_len returns
 858          * the length of the entire sockaddr_in/in6, including
 859          * sizeof (unsigned short) of the family */
 860         /* We can't really avoid the +2 as all code below depends on this size - INCLUDING unix domain sockets.*/
 861         data = mono_array_new_cached (domain, mono_get_byte_class (), sa_size + 2, error);
 862         return_val_if_nok (error, NULL);
 863
 864         /* The data buffer is laid out as follows:
 865          * bytes 0 and 1 are the address family
 866          * bytes 2 and 3 are the port info
 867          * the rest is the address info
 868          */
 869
 870         family = convert_to_mono_family (saddr->sa_family);
 871         if (family == AddressFamily_Unknown) {
 872                 *werror = WSAEAFNOSUPPORT;
 873                 return NULL;
 874         }
 875
 876         mono_array_set (data, guint8, 0, family & 0x0FF);
 877         mono_array_set (data, guint8, 1, (family >> 8) & 0x0FF);
 878
 879         if (saddr->sa_family == AF_INET) {
 880                 struct sockaddr_in *sa_in = (struct sockaddr_in *)saddr;
 881                 guint16 port = ntohs (sa_in->sin_port);
 882                 guint32 address = ntohl (sa_in->sin_addr.s_addr);
 883                 int buffer_size = 8;
 884
 885                 if (sa_size < buffer_size) {
 886                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
 887                         return NULL;
 888                 }
 889
 890                 mono_array_set (data, guint8, 2, (port>>8) & 0xff);
 891                 mono_array_set (data, guint8, 3, (port) & 0xff);
 892                 mono_array_set (data, guint8, 4, (address>>24) & 0xff);
 893                 mono_array_set (data, guint8, 5, (address>>16) & 0xff);
 894                 mono_array_set (data, guint8, 6, (address>>8) & 0xff);
 895                 mono_array_set (data, guint8, 7, (address) & 0xff);
 896
 897                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_field, data);
 898                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_length_field, &buffer_size);
 899
 900                 return sockaddr_obj;
 901         } else if (saddr->sa_family == AF_INET6) {
 902                 struct sockaddr_in6 *sa_in = (struct sockaddr_in6 *)saddr;
 903                 int i;
 904                 int buffer_size = 28;
 905
 906                 guint16 port = ntohs (sa_in->sin6_port);
 907
 908                 if (sa_size < buffer_size) {
 909                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
 910                         return NULL;
 911                 }
 912
 913                 mono_array_set (data, guint8, 2, (port>>8) & 0xff);
 914                 mono_array_set (data, guint8, 3, (port) & 0xff);
 915
 916                 if (is_ipv4_mapped_any (&sa_in->sin6_addr)) {
 917                         // Map ::ffff:0:0 to :: (bug #5502)
 918                         for (i = 0; i < 16; i++)
 919                                 mono_array_set (data, guint8, 8 + i, 0);
 920                 } else {
 921                         for (i = 0; i < 16; i++) {
 922                                 mono_array_set (data, guint8, 8 + i,
 923                                                                 sa_in->sin6_addr.s6_addr [i]);
 924                         }
 925                 }
 926
 927                 mono_array_set (data, guint8, 24, sa_in->sin6_scope_id & 0xff);
 928                 mono_array_set (data, guint8, 25,
 929                                                 (sa_in->sin6_scope_id >> 8) & 0xff);
 930                 mono_array_set (data, guint8, 26,
 931                                                 (sa_in->sin6_scope_id >> 16) & 0xff);
 932                 mono_array_set (data, guint8, 27,
 933                                                 (sa_in->sin6_scope_id >> 24) & 0xff);
 934
 935                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_field, data);
 936                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_length_field, &buffer_size);
 937
 938                 return sockaddr_obj;
 939         }
 940 #ifdef HAVE_SYS_UN_H
 941         else if (saddr->sa_family == AF_UNIX) {
 942                 int i;
 943                 int buffer_size = sa_size + 2;
 944
 945                 for (i = 0; i < sa_size; i++)
 946                         mono_array_set (data, guint8, i + 2, saddr->sa_data [i]);
 947
 948                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_field, data);
 949                 mono_field_set_value (sockaddr_obj, domain->sockaddr_data_length_field, &buffer_size);
 950
 951                 return sockaddr_obj;
 952         }
 953 #endif
 954         else {
 955                 *werror = WSAEAFNOSUPPORT;
 956                 return NULL;
 957         }
 958 }
 959
 960 static int
 961 get_sockaddr_size (int family)
 962 {
 963         int size;
 964
 965         size = 0;
 966         if (family == AF_INET) {
 967                 size = sizeof (struct sockaddr_in);
 968         } else if (family == AF_INET6) {
 969                 size = sizeof (struct sockaddr_in6);
 970         }
 971 #ifdef HAVE_SYS_UN_H
 972         else if (family == AF_UNIX) {
 973                 size = sizeof (struct sockaddr_un);
 974         }
 975 #endif
 976         return size;
 977 }
 978
 979 MonoObject*
 980 ves_icall_System_Net_Sockets_Socket_LocalEndPoint_internal (SOCKET sock, gint32 af, gint32 *werror)
 981 {
 982         gchar *sa;
 983         socklen_t salen;
 984         int ret;
 985         MonoObject *result;
 986         MonoError error;
 987
 988         *werror = 0;
 989
 990         salen = get_sockaddr_size (convert_family ((MonoAddressFamily)af));
 991         if (salen == 0) {
 992                 *werror = WSAEAFNOSUPPORT;
 993                 return NULL;
 994         }
 995         sa = (salen <= 128) ? (gchar *)alloca (salen) : (gchar *)g_malloc0 (salen);
 996
 997         MONO_ENTER_GC_SAFE;
 998
 999         ret = _wapi_getsockname (sock, (struct sockaddr *)sa, &salen);
1000
1001         MONO_EXIT_GC_SAFE;
1002
1003         if (ret == SOCKET_ERROR) {
1004                 *werror = WSAGetLastError ();
1005                 if (salen > 128)
1006                         g_free (sa);
1007                 return NULL;
1008         }
1009
1010         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)));
1011
1012         result = create_object_from_sockaddr ((struct sockaddr *)sa, salen, werror, &error);
1013         if (salen > 128)
1014                 g_free (sa);
1015         if (!mono_error_ok (&error))
1016                 mono_error_set_pending_exception (&error);
1017         return result;
1018 }
1019
1020 MonoObject*
1021 ves_icall_System_Net_Sockets_Socket_RemoteEndPoint_internal (SOCKET sock, gint32 af, gint32 *werror)
1022 {
1023         gchar *sa;
1024         socklen_t salen;
1025         int ret;
1026         MonoObject *result;
1027         MonoError error;
1028
1029         *werror = 0;
1030
1031         salen = get_sockaddr_size (convert_family ((MonoAddressFamily)af));
1032         if (salen == 0) {
1033                 *werror = WSAEAFNOSUPPORT;
1034                 return NULL;
1035         }
1036         sa = (salen <= 128) ? (gchar *)alloca (salen) : (gchar *)g_malloc0 (salen);
1037         /* Note: linux returns just 2 for AF_UNIX. Always. */
1038
1039         MONO_ENTER_GC_SAFE;
1040
1041         ret = _wapi_getpeername (sock, (struct sockaddr *)sa, &salen);
1042
1043         MONO_EXIT_GC_SAFE;
1044
1045         if (ret == SOCKET_ERROR) {
1046                 *werror = WSAGetLastError ();
1047                 if (salen > 128)
1048                         g_free (sa);
1049                 return NULL;
1050         }
1051
1052         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)));
1053
1054         result = create_object_from_sockaddr ((struct sockaddr *)sa, salen, werror, &error);
1055         if (salen > 128)
1056                 g_free (sa);
1057         if (!mono_error_ok (&error))
1058                 mono_error_set_pending_exception (&error);
1059         return result;
1060 }
1061
1062 static struct sockaddr*
1063 create_sockaddr_from_object (MonoObject *saddr_obj, socklen_t *sa_size, gint32 *werror, MonoError *error)
1064 {
1065         MonoDomain *domain = mono_domain_get ();
1066         MonoArray *data;
1067         gint32 family;
1068         int len;
1069
1070         mono_error_init (error);
1071
1072         if (!domain->sockaddr_class)
1073                 domain->sockaddr_class = mono_class_load_from_name (get_socket_assembly (), "System.Net", "SocketAddress");
1074
1075         /* Locate the SocketAddress data buffer in the object */
1076         if (!domain->sockaddr_data_field) {
1077                 domain->sockaddr_data_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Buffer");
1078                 g_assert (domain->sockaddr_data_field);
1079         }
1080
1081         /* Locate the SocketAddress data buffer length in the object */
1082         if (!domain->sockaddr_data_length_field) {
1083                 domain->sockaddr_data_length_field = mono_class_get_field_from_name (domain->sockaddr_class, "m_Size");
1084                 g_assert (domain->sockaddr_data_length_field);
1085         }
1086
1087         data = *(MonoArray **)(((char *)saddr_obj) + domain->sockaddr_data_field->offset);
1088
1089         /* The data buffer is laid out as follows:
1090          * byte 0 is the address family low byte
1091          * byte 1 is the address family high byte
1092          * INET:
1093          *      bytes 2 and 3 are the port info
1094          *      the rest is the address info
1095          * UNIX:
1096          *      the rest is the file name
1097          */
1098         len = *(int *)(((char *)saddr_obj) + domain->sockaddr_data_length_field->offset);
1099         g_assert (len >= 2);
1100
1101         family = convert_family ((MonoAddressFamily)(mono_array_get (data, guint8, 0) + (mono_array_get (data, guint8, 1) << 8)));
1102         if (family == AF_INET) {
1103                 struct sockaddr_in *sa;
1104                 guint16 port;
1105                 guint32 address;
1106
1107                 if (len < 8) {
1108                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1109                         return NULL;
1110                 }
1111
1112                 sa = g_new0 (struct sockaddr_in, 1);
1113                 port = (mono_array_get (data, guint8, 2) << 8) +
1114                         mono_array_get (data, guint8, 3);
1115                 address = (mono_array_get (data, guint8, 4) << 24) +
1116                         (mono_array_get (data, guint8, 5) << 16 ) +
1117                         (mono_array_get (data, guint8, 6) << 8) +
1118                         mono_array_get (data, guint8, 7);
1119
1120                 sa->sin_family = family;
1121                 sa->sin_addr.s_addr = htonl (address);
1122                 sa->sin_port = htons (port);
1123
1124                 *sa_size = sizeof (struct sockaddr_in);
1125                 return (struct sockaddr *)sa;
1126         } else if (family == AF_INET6) {
1127                 struct sockaddr_in6 *sa;
1128                 int i;
1129                 guint16 port;
1130                 guint32 scopeid;
1131
1132                 if (len < 28) {
1133                         mono_error_set_exception_instance (error, mono_exception_from_name (mono_get_corlib (), "System", "SystemException"));
1134                         return NULL;
1135                 }
1136
1137                 sa = g_new0 (struct sockaddr_in6, 1);
1138                 port = mono_array_get (data, guint8, 3) +
1139                         (mono_array_get (data, guint8, 2) << 8);
1140                 scopeid = mono_array_get (data, guint8, 24) +
1141                         (mono_array_get (data, guint8, 25) << 8) +
1142                         (mono_array_get (data, guint8, 26) << 16) +
1143                         (mono_array_get (data, guint8, 27) << 24);
1144
1145                 sa->sin6_family = family;
1146                 sa->sin6_port = htons (port);
1147                 sa->sin6_scope_id = scopeid;
1148
1149                 for (i = 0; i < 16; i++)
1150                         sa->sin6_addr.s6_addr [i] = mono_array_get (data, guint8, 8 + i);
1151
1152                 *sa_size = sizeof (struct sockaddr_in6);
1153                 return (struct sockaddr *)sa;
1154         }
1155 #ifdef HAVE_SYS_UN_H
1156         else if (family == AF_UNIX) {
1157                 struct sockaddr_un *sock_un;
1158                 int i;
1159
1160                 /* Need a byte for the '\0' terminator/prefix, and the first
1161                  * two bytes hold the SocketAddress family
1162                  */
1163                 if (len - 2 >= sizeof (sock_un->sun_path)) {
1164                         mono_error_set_exception_instance (error, mono_get_exception_index_out_of_range ());
1165                         return NULL;
1166                 }
1167
1168                 sock_un = g_new0 (struct sockaddr_un, 1);
1169
1170                 sock_un->sun_family = family;
1171                 for (i = 0; i < len - 2; i++)
1172                         sock_un->sun_path [i] = mono_array_get (data, guint8, i + 2);
1173
1174                 *sa_size = len;
1175                 return (struct sockaddr *)sock_un;
1176         }
1177 #endif
1178         else {
1179                 *werror = WSAEAFNOSUPPORT;
1180                 return 0;
1181         }
1182 }
1183
1184 void
1185 ves_icall_System_Net_Sockets_Socket_Bind_internal (SOCKET sock, MonoObject *sockaddr, gint32 *werror)
1186 {
1187         MonoError error;
1188         struct sockaddr *sa;
1189         socklen_t sa_size;
1190         int ret;
1191
1192         *werror = 0;
1193
1194         sa = create_sockaddr_from_object (sockaddr, &sa_size, werror, &error);
1195         if (*werror != 0)
1196                 return;
1197         if (!mono_error_ok (&error)) {
1198                 mono_error_set_pending_exception (&error);
1199                 return;
1200         }
1201
1202         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)));
1203
1204         ret = _wapi_bind (sock, sa, sa_size);
1205
1206         if (ret == SOCKET_ERROR)
1207                 *werror = WSAGetLastError ();
1208
1209         g_free (sa);
1210 }
1211
1212 enum {
1213         SelectModeRead,
1214         SelectModeWrite,
1215         SelectModeError
1216 };
1217
1218 MonoBoolean
1219 ves_icall_System_Net_Sockets_Socket_Poll_internal (SOCKET sock, gint mode,
1220                                                                                                    gint timeout, gint32 *werror)
1221 {
1222         MonoInternalThread *thread = mono_thread_internal_current ();
1223         mono_pollfd *pfds;
1224         int ret;
1225         gboolean interrupted;
1226         time_t start;
1227
1228         *werror = 0;
1229
1230         pfds = g_new0 (mono_pollfd, 1);
1231         pfds->fd = GPOINTER_TO_INT (sock);
1232
1233         switch (mode) {
1234         case SelectModeRead:
1235                 pfds->events = MONO_POLLIN;
1236                 break;
1237         case SelectModeWrite:
1238                 pfds->events = MONO_POLLOUT;
1239                 break;
1240         default:
1241                 pfds->events = MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL;
1242                 break;
1243         }
1244
1245         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1246         start = time (NULL);
1247
1248         do {
1249                 mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1250                 if (interrupted) {
1251                         g_free (pfds);
1252                         *werror = WSAEINTR;
1253                         return FALSE;
1254                 }
1255
1256                 MONO_ENTER_GC_SAFE;
1257
1258                 ret = mono_poll (pfds, 1, timeout);
1259
1260                 MONO_EXIT_GC_SAFE;
1261
1262                 mono_thread_info_uninstall_interrupt (&interrupted);
1263                 if (interrupted) {
1264                         g_free (pfds);
1265                         *werror = WSAEINTR;
1266                         return FALSE;
1267                 }
1268
1269                 if (timeout > 0 && ret < 0) {
1270                         int err = errno;
1271                         int sec = time (NULL) - start;
1272
1273                         timeout -= sec * 1000;
1274                         if (timeout < 0) {
1275                                 timeout = 0;
1276                         }
1277
1278                         errno = err;
1279                 }
1280
1281                 if (ret == -1 && errno == EINTR) {
1282                         if (mono_thread_test_state (thread, (MonoThreadState)(ThreadState_AbortRequested | ThreadState_StopRequested))) {
1283                                 g_free (pfds);
1284                                 return FALSE;
1285                         }
1286
1287                         /* Suspend requested? */
1288                         mono_thread_interruption_checkpoint ();
1289
1290                         errno = EINTR;
1291                 }
1292         } while (ret == -1 && errno == EINTR);
1293
1294         if (ret == -1) {
1295 #ifdef HOST_WIN32
1296                 *werror = WSAGetLastError ();
1297 #else
1298                 *werror = errno_to_WSA (errno, __func__);
1299 #endif
1300                 g_free (pfds);
1301                 return FALSE;
1302         }
1303
1304         g_free (pfds);
1305         return ret != 0;
1306 }
1307
1308 void
1309 ves_icall_System_Net_Sockets_Socket_Connect_internal (SOCKET sock, MonoObject *sockaddr, gint32 *werror, gboolean blocking)
1310 {
1311         MonoError error;
1312         struct sockaddr *sa;
1313         socklen_t sa_size;
1314         int ret;
1315         gboolean interrupted;
1316
1317         *werror = 0;
1318
1319         sa = create_sockaddr_from_object (sockaddr, &sa_size, werror, &error);
1320         if (*werror != 0)
1321                 return;
1322         if (!mono_error_ok (&error)) {
1323                 mono_error_set_pending_exception (&error);
1324                 return;
1325         }
1326
1327         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)));
1328
1329         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1330         if (interrupted) {
1331                 *werror = WSAEINTR;
1332                 return;
1333         }
1334
1335         MONO_ENTER_GC_SAFE;
1336
1337 #ifdef HOST_WIN32
1338         ret = alertable_connect (sock, sa, sa_size, blocking);
1339 #else
1340         ret = _wapi_connect (sock, sa, sa_size);
1341 #endif
1342
1343         MONO_EXIT_GC_SAFE;
1344
1345         if (ret == SOCKET_ERROR)
1346                 *werror = WSAGetLastError ();
1347
1348         mono_thread_info_uninstall_interrupt (&interrupted);
1349         if (interrupted)
1350                 *werror = WSAEINTR;
1351
1352         g_free (sa);
1353 }
1354
1355 /* These #defines from mswsock.h from wine.  Defining them here allows
1356  * us to build this file on a mingw box that doesn't know the magic
1357  * numbers, but still run on a newer windows box that does.
1358  */
1359 #ifndef WSAID_DISCONNECTEX
1360 #define WSAID_DISCONNECTEX {0x7fda2e11,0x8630,0x436f,{0xa0, 0x31, 0xf5, 0x36, 0xa6, 0xee, 0xc1, 0x57}}
1361 typedef BOOL (WINAPI *LPFN_DISCONNECTEX)(SOCKET, LPOVERLAPPED, DWORD, DWORD);
1362 #endif
1363
1364 #ifndef WSAID_TRANSMITFILE
1365 #define WSAID_TRANSMITFILE {0xb5367df0,0xcbac,0x11cf,{0x95,0xca,0x00,0x80,0x5f,0x48,0xa1,0x92}}
1366 typedef BOOL (WINAPI *LPFN_TRANSMITFILE)(SOCKET, HANDLE, DWORD, DWORD, LPOVERLAPPED, LPTRANSMIT_FILE_BUFFERS, DWORD);
1367 #endif
1368
1369 void
1370 ves_icall_System_Net_Sockets_Socket_Disconnect_internal (SOCKET sock, MonoBoolean reuse, gint32 *werror)
1371 {
1372         int ret;
1373         glong output_bytes = 0;
1374         GUID disco_guid = WSAID_DISCONNECTEX;
1375         GUID trans_guid = WSAID_TRANSMITFILE;
1376         LPFN_DISCONNECTEX _wapi_disconnectex = NULL;
1377         LPFN_TRANSMITFILE _wapi_transmitfile = NULL;
1378         gboolean interrupted;
1379
1380         *werror = 0;
1381
1382         LOGDEBUG (g_message("%s: disconnecting from socket %p (reuse %d)", __func__, sock, reuse));
1383
1384         MONO_ENTER_GC_SAFE;
1385
1386         /* I _think_ the extension function pointers need to be looked
1387          * up for each socket.  FIXME: check the best way to store
1388          * pointers to functions in managed objects that still works
1389          * on 64bit platforms.
1390          */
1391         ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER, (gchar *)&disco_guid, sizeof (GUID),
1392                                         (gchar *)&_wapi_disconnectex, sizeof (void *), &output_bytes, NULL, NULL);
1393
1394         MONO_EXIT_GC_SAFE;
1395
1396         if (ret != 0) {
1397                 /* make sure that WSAIoctl didn't put crap in the
1398                  * output pointer
1399                  */
1400                 _wapi_disconnectex = NULL;
1401
1402                 MONO_ENTER_GC_SAFE;
1403
1404                 /*
1405                  * Use the SIO_GET_EXTENSION_FUNCTION_POINTER to
1406                  * determine the address of the disconnect method without
1407                  * taking a hard dependency on a single provider
1408                  *
1409                  * For an explanation of why this is done, you can read
1410                  * the article at http://www.codeproject.com/internet/jbsocketserver3.asp
1411                  */
1412                 ret = WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER, (gchar *)&trans_guid, sizeof(GUID),
1413                                 (gchar *)&_wapi_transmitfile, sizeof(void *), &output_bytes, NULL, NULL);
1414
1415                 MONO_EXIT_GC_SAFE;
1416
1417                 if (ret != 0)
1418                         _wapi_transmitfile = NULL;
1419         }
1420
1421         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1422         if (interrupted) {
1423                 *werror = WSAEINTR;
1424                 return;
1425         }
1426
1427         MONO_ENTER_GC_SAFE;
1428
1429         if (_wapi_disconnectex != NULL) {
1430                 if (!_wapi_disconnectex (sock, NULL, reuse ? TF_REUSE_SOCKET : 0, 0))
1431                         *werror = WSAGetLastError ();
1432         } else if (_wapi_transmitfile != NULL) {
1433                 if (!_wapi_transmitfile (sock, NULL, 0, 0, NULL, NULL, TF_DISCONNECT | (reuse ? TF_REUSE_SOCKET : 0)))
1434                         *werror = WSAGetLastError ();
1435         } else {
1436                 *werror = ERROR_NOT_SUPPORTED;
1437         }
1438
1439         MONO_EXIT_GC_SAFE;
1440
1441         mono_thread_info_uninstall_interrupt (&interrupted);
1442         if (interrupted)
1443                 *werror = WSAEINTR;
1444 }
1445
1446 gint32
1447 ves_icall_System_Net_Sockets_Socket_Receive_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *werror, gboolean blocking)
1448 {
1449         int ret;
1450         guchar *buf;
1451         gint32 alen;
1452         int recvflags = 0;
1453         gboolean interrupted;
1454         MonoInternalThread* curthread G_GNUC_UNUSED = mono_thread_internal_current ();
1455
1456         *werror = 0;
1457
1458         alen = mono_array_length (buffer);
1459         if (offset > alen - count)
1460                 return 0;
1461
1462         buf = mono_array_addr (buffer, guchar, offset);
1463
1464         recvflags = convert_socketflags (flags);
1465         if (recvflags == -1) {
1466                 *werror = WSAEOPNOTSUPP;
1467                 return 0;
1468         }
1469
1470         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1471         if (interrupted)
1472                 return 0;
1473
1474         MONO_ENTER_GC_SAFE;
1475
1476 #ifdef HOST_WIN32
1477         {
1478                 curthread->interrupt_on_stop = (gpointer)TRUE;
1479                 ret = alertable_recv (sock, buf, count, recvflags, blocking);
1480                 curthread->interrupt_on_stop = (gpointer)FALSE;
1481         }
1482 #else
1483         ret = _wapi_recv (sock, buf, count, recvflags);
1484 #endif
1485
1486         MONO_EXIT_GC_SAFE;
1487
1488         if (ret == SOCKET_ERROR)
1489                 *werror = WSAGetLastError ();
1490
1491         mono_thread_info_uninstall_interrupt (&interrupted);
1492         if (interrupted)
1493                 *werror = WSAEINTR;
1494
1495         if (*werror)
1496                 return 0;
1497
1498         return ret;
1499 }
1500
1501 gint32
1502 ves_icall_System_Net_Sockets_Socket_Receive_array_internal (SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *werror, gboolean blocking)
1503 {
1504         int ret, count;
1505         gboolean interrupted;
1506         DWORD recv;
1507         WSABUF *wsabufs;
1508         DWORD recvflags = 0;
1509
1510         *werror = 0;
1511
1512         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1513         count = mono_array_length (buffers);
1514
1515         recvflags = convert_socketflags (flags);
1516         if (recvflags == -1) {
1517                 *werror = WSAEOPNOTSUPP;
1518                 return 0;
1519         }
1520
1521         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1522         if (interrupted) {
1523                 *werror = WSAEINTR;
1524                 return 0;
1525         }
1526
1527         MONO_ENTER_GC_SAFE;
1528
1529 #ifdef HOST_WIN32
1530         ret = alertable_WSARecv (sock, wsabufs, count, &recv, &recvflags, NULL, NULL, blocking);
1531 #else
1532         ret = WSARecv (sock, wsabufs, count, &recv, &recvflags, NULL, NULL);
1533 #endif
1534
1535         MONO_EXIT_GC_SAFE;
1536
1537         if (ret == SOCKET_ERROR)
1538                 *werror = WSAGetLastError ();
1539
1540         mono_thread_info_uninstall_interrupt (&interrupted);
1541         if (interrupted)
1542                 *werror = WSAEINTR;
1543
1544         if (*werror)
1545                 return 0;
1546
1547         return recv;
1548 }
1549
1550 gint32
1551 ves_icall_System_Net_Sockets_Socket_ReceiveFrom_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject **sockaddr, gint32 *werror, gboolean blocking)
1552 {
1553         MonoError error;
1554         int ret;
1555         guchar *buf;
1556         gint32 alen;
1557         int recvflags = 0;
1558         struct sockaddr *sa;
1559         socklen_t sa_size;
1560         gboolean interrupted;
1561
1562         *werror = 0;
1563
1564         alen = mono_array_length (buffer);
1565         if (offset > alen - count)
1566                 return 0;
1567
1568         sa = create_sockaddr_from_object (*sockaddr, &sa_size, werror, &error);
1569         if (*werror != 0)
1570                 return 0;
1571         if (!mono_error_ok (&error)) {
1572                 mono_error_set_pending_exception (&error);
1573                 return 0;
1574         }
1575
1576         buf = mono_array_addr (buffer, guchar, offset);
1577
1578         recvflags = convert_socketflags (flags);
1579         if (recvflags == -1) {
1580                 *werror = WSAEOPNOTSUPP;
1581                 return 0;
1582         }
1583
1584         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1585         if (interrupted) {
1586                 g_free (sa);
1587                 *werror = WSAEINTR;
1588                 return 0;
1589         }
1590
1591         MONO_ENTER_GC_SAFE;
1592
1593 #ifdef HOST_WIN32
1594         ret = alertable_recvfrom (sock, buf, count, recvflags, sa, &sa_size, blocking);
1595 #else
1596         ret = _wapi_recvfrom (sock, buf, count, recvflags, sa, &sa_size);
1597 #endif
1598
1599         MONO_EXIT_GC_SAFE;
1600
1601         if (ret == SOCKET_ERROR)
1602                 *werror = WSAGetLastError ();
1603
1604         mono_thread_info_uninstall_interrupt (&interrupted);
1605
1606         if (interrupted)
1607                 *werror = WSAEINTR;
1608
1609         if (*werror) {
1610                 g_free(sa);
1611                 return 0;
1612         }
1613
1614         /* If we didn't get a socket size, then we're probably a
1615          * connected connection-oriented socket and the stack hasn't
1616          * returned the remote address. All we can do is return null.
1617          */
1618         if (sa_size) {
1619                 *sockaddr = create_object_from_sockaddr (sa, sa_size, werror, &error);
1620                 if (!mono_error_ok (&error)) {
1621                         mono_error_set_pending_exception (&error);
1622                         g_free (sa);
1623                         return 0;
1624                 }
1625         } else {
1626                 *sockaddr = NULL;
1627         }
1628
1629         g_free (sa);
1630
1631         return ret;
1632 }
1633
1634 gint32
1635 ves_icall_System_Net_Sockets_Socket_Send_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, gint32 *werror, gboolean blocking)
1636 {
1637         int ret;
1638         guchar *buf;
1639         gint32 alen;
1640         int sendflags = 0;
1641         gboolean interrupted;
1642
1643         *werror = 0;
1644
1645         alen = mono_array_length (buffer);
1646         if (offset > alen - count)
1647                 return 0;
1648
1649         LOGDEBUG (g_message("%s: alen: %d", __func__, alen));
1650
1651         buf = mono_array_addr (buffer, guchar, offset);
1652
1653         LOGDEBUG (g_message("%s: Sending %d bytes", __func__, count));
1654
1655         sendflags = convert_socketflags (flags);
1656         if (sendflags == -1) {
1657                 *werror = WSAEOPNOTSUPP;
1658                 return 0;
1659         }
1660
1661         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1662         if (interrupted) {
1663                 *werror = WSAEINTR;
1664                 return 0;
1665         }
1666
1667         MONO_ENTER_GC_SAFE;
1668
1669 #ifdef HOST_WIN32
1670         ret = alertable_send (sock, buf, count, sendflags, blocking);
1671 #else
1672         ret = _wapi_send (sock, buf, count, sendflags);
1673 #endif
1674
1675         MONO_EXIT_GC_SAFE;
1676
1677         if (ret == SOCKET_ERROR)
1678                 *werror = WSAGetLastError ();
1679
1680         mono_thread_info_uninstall_interrupt (&interrupted);
1681         if (interrupted)
1682                 *werror = WSAEINTR;
1683
1684         if (*werror)
1685                 return 0;
1686
1687         return ret;
1688 }
1689
1690 gint32
1691 ves_icall_System_Net_Sockets_Socket_Send_array_internal (SOCKET sock, MonoArray *buffers, gint32 flags, gint32 *werror, gboolean blocking)
1692 {
1693         int ret, count;
1694         DWORD sent;
1695         WSABUF *wsabufs;
1696         DWORD sendflags = 0;
1697         gboolean interrupted;
1698
1699         *werror = 0;
1700
1701         wsabufs = mono_array_addr (buffers, WSABUF, 0);
1702         count = mono_array_length (buffers);
1703
1704         sendflags = convert_socketflags (flags);
1705         if (sendflags == -1) {
1706                 *werror = WSAEOPNOTSUPP;
1707                 return 0;
1708         }
1709
1710         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1711         if (interrupted) {
1712                 *werror = WSAEINTR;
1713                 return 0;
1714         }
1715
1716         MONO_ENTER_GC_SAFE;
1717
1718 #ifdef HOST_WIN32
1719         ret = alertable_WSASend (sock, wsabufs, count, &sent, sendflags, NULL, NULL, blocking);
1720 #else
1721         ret = WSASend (sock, wsabufs, count, &sent, sendflags, NULL, NULL);
1722 #endif
1723
1724         MONO_EXIT_GC_SAFE;
1725
1726         if (ret == SOCKET_ERROR)
1727                 *werror = WSAGetLastError ();
1728
1729         mono_thread_info_uninstall_interrupt (&interrupted);
1730         if (interrupted)
1731                 *werror = WSAEINTR;
1732
1733         if (*werror)
1734                 return 0;
1735
1736         return sent;
1737 }
1738
1739 gint32
1740 ves_icall_System_Net_Sockets_Socket_SendTo_internal (SOCKET sock, MonoArray *buffer, gint32 offset, gint32 count, gint32 flags, MonoObject *sockaddr, gint32 *werror, gboolean blocking)
1741 {
1742         MonoError error;
1743         int ret;
1744         guchar *buf;
1745         gint32 alen;
1746         int sendflags = 0;
1747         struct sockaddr *sa;
1748         socklen_t sa_size;
1749         gboolean interrupted;
1750
1751         *werror = 0;
1752
1753         alen = mono_array_length (buffer);
1754         if (offset > alen - count) {
1755                 return 0;
1756         }
1757
1758         sa = create_sockaddr_from_object(sockaddr, &sa_size, werror, &error);
1759         if (*werror != 0)
1760                 return 0;
1761         if (!mono_error_ok (&error)) {
1762                 mono_error_set_pending_exception (&error);
1763                 return 0;
1764         }
1765
1766         LOGDEBUG (g_message ("%s: alen: %d", __func__, alen));
1767
1768         buf = mono_array_addr (buffer, guchar, offset);
1769
1770         LOGDEBUG (g_message("%s: Sending %d bytes", __func__, count));
1771
1772         sendflags = convert_socketflags (flags);
1773         if (sendflags == -1) {
1774                 g_free (sa);
1775                 *werror = WSAEOPNOTSUPP;
1776                 return 0;
1777         }
1778
1779         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1780         if (interrupted) {
1781                 g_free (sa);
1782                 *werror = WSAEINTR;
1783                 return 0;
1784         }
1785
1786         MONO_ENTER_GC_SAFE;
1787
1788 #ifdef HOST_WIN32
1789         ret = alertable_sendto (sock, buf, count, sendflags, sa, sa_size, blocking);
1790 #else
1791         ret = _wapi_sendto (sock, buf, count, sendflags, sa, sa_size);
1792 #endif
1793
1794         MONO_EXIT_GC_SAFE;
1795
1796         if (ret == SOCKET_ERROR)
1797                 *werror = WSAGetLastError ();
1798
1799         mono_thread_info_uninstall_interrupt (&interrupted);
1800         if (interrupted)
1801                 *werror = WSAEINTR;
1802
1803         g_free(sa);
1804
1805         if (*werror)
1806                 return 0;
1807
1808         return ret;
1809 }
1810
1811 static SOCKET
1812 Socket_to_SOCKET (MonoObject *sockobj)
1813 {
1814         MonoSafeHandle *safe_handle;
1815         MonoClassField *field;
1816
1817         field = mono_class_get_field_from_name (sockobj->vtable->klass, "m_Handle");
1818         safe_handle = ((MonoSafeHandle *)(*(gpointer *)(((char *)sockobj) + field->offset)));
1819
1820         if (safe_handle == NULL)
1821                 return -1;
1822
1823         return (SOCKET)safe_handle->handle;
1824 }
1825
1826 #define POLL_ERRORS (MONO_POLLERR | MONO_POLLHUP | MONO_POLLNVAL)
1827
1828 void
1829 ves_icall_System_Net_Sockets_Socket_Select_internal (MonoArray **sockets, gint32 timeout, gint32 *werror)
1830 {
1831         MonoError error;
1832         MonoInternalThread *thread = mono_thread_internal_current ();
1833         MonoObject *obj;
1834         mono_pollfd *pfds;
1835         int nfds, idx;
1836         int ret;
1837         int i, count;
1838         int mode;
1839         MonoClass *sock_arr_class;
1840         MonoArray *socks;
1841         time_t start;
1842         uintptr_t socks_size;
1843         gboolean interrupted;
1844
1845         *werror = 0;
1846
1847         /* *sockets -> READ, null, WRITE, null, ERROR, null */
1848         count = mono_array_length (*sockets);
1849         nfds = count - 3; /* NULL separators */
1850         pfds = g_new0 (mono_pollfd, nfds);
1851         mode = idx = 0;
1852         for (i = 0; i < count; i++) {
1853                 obj = mono_array_get (*sockets, MonoObject *, i);
1854                 if (obj == NULL) {
1855                         mode++;
1856                         continue;
1857                 }
1858
1859                 if (idx >= nfds) {
1860                         /* The socket array was bogus */
1861                         g_free (pfds);
1862                         *werror = WSAEFAULT;
1863                         return;
1864                 }
1865
1866                 pfds [idx].fd = Socket_to_SOCKET (obj);
1867                 pfds [idx].events = (mode == 0) ? MONO_POLLIN : (mode == 1) ? MONO_POLLOUT : POLL_ERRORS;
1868                 idx++;
1869         }
1870
1871         timeout = (timeout >= 0) ? (timeout / 1000) : -1;
1872         start = time (NULL);
1873         do {
1874                 mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
1875                 if (interrupted) {
1876                         g_free (pfds);
1877                         *werror = WSAEINTR;
1878                         return;
1879                 }
1880
1881                 MONO_ENTER_GC_SAFE;
1882
1883                 ret = mono_poll (pfds, nfds, timeout);
1884
1885                 MONO_EXIT_GC_SAFE;
1886
1887                 mono_thread_info_uninstall_interrupt (&interrupted);
1888                 if (interrupted) {
1889                         g_free (pfds);
1890                         *werror = WSAEINTR;
1891                         return;
1892                 }
1893
1894                 if (timeout > 0 && ret < 0) {
1895                         int err = errno;
1896                         int sec = time (NULL) - start;
1897
1898                         timeout -= sec * 1000;
1899                         if (timeout < 0)
1900                                 timeout = 0;
1901                         errno = err;
1902                 }
1903
1904                 if (ret == -1 && errno == EINTR) {
1905                         if (mono_thread_test_state (thread, (MonoThreadState)(ThreadState_AbortRequested | ThreadState_StopRequested))) {
1906                                 g_free (pfds);
1907                                 *sockets = NULL;
1908                                 return;
1909                         }
1910
1911                         /* Suspend requested? */
1912                         mono_thread_interruption_checkpoint ();
1913
1914                         errno = EINTR;
1915                 }
1916         } while (ret == -1 && errno == EINTR);
1917
1918         if (ret == -1) {
1919 #ifdef HOST_WIN32
1920                 *werror = WSAGetLastError ();
1921 #else
1922                 *werror = errno_to_WSA (errno, __func__);
1923 #endif
1924                 g_free (pfds);
1925                 return;
1926         }
1927
1928         if (ret == 0) {
1929                 g_free (pfds);
1930                 *sockets = NULL;
1931                 return;
1932         }
1933
1934         sock_arr_class = ((MonoObject *)*sockets)->vtable->klass;
1935         socks_size = ((uintptr_t)ret) + 3; /* space for the NULL delimiters */
1936         socks = mono_array_new_full_checked (mono_domain_get (), sock_arr_class, &socks_size, NULL, &error);
1937         if (!mono_error_ok (&error)) {
1938                 mono_error_set_pending_exception (&error);
1939                 g_free (pfds);
1940                 return;
1941         }
1942
1943         mode = idx = 0;
1944         for (i = 0; i < count && ret > 0; i++) {
1945                 mono_pollfd *pfd;
1946
1947                 obj = mono_array_get (*sockets, MonoObject *, i);
1948                 if (obj == NULL) {
1949                         mode++;
1950                         idx++;
1951                         continue;
1952                 }
1953
1954                 pfd = &pfds [i - mode];
1955                 if (pfd->revents == 0)
1956                         continue;
1957
1958                 ret--;
1959                 if (mode == 0 && (pfd->revents & (MONO_POLLIN | POLL_ERRORS)) != 0) {
1960                         mono_array_setref (socks, idx++, obj);
1961                 } else if (mode == 1 && (pfd->revents & (MONO_POLLOUT | POLL_ERRORS)) != 0) {
1962                         mono_array_setref (socks, idx++, obj);
1963                 } else if ((pfd->revents & POLL_ERRORS) != 0) {
1964                         mono_array_setref (socks, idx++, obj);
1965                 }
1966         }
1967
1968         *sockets = socks;
1969         g_free (pfds);
1970 }
1971
1972 static MonoObject*
1973 int_to_object (MonoDomain *domain, int val, MonoError *error)
1974 {
1975         return mono_value_box_checked (domain, mono_get_int32_class (), &val, error);
1976 }
1977
1978 void
1979 ves_icall_System_Net_Sockets_Socket_GetSocketOption_obj_internal (SOCKET sock, gint32 level, gint32 name, MonoObject **obj_val, gint32 *werror)
1980 {
1981         int system_level = 0;
1982         int system_name = 0;
1983         int ret;
1984         int val = 0;
1985         socklen_t valsize = sizeof (val);
1986         struct linger linger;
1987         socklen_t lingersize = sizeof (linger);
1988         int time_ms = 0;
1989         socklen_t time_ms_size = sizeof (time_ms);
1990 #ifdef SO_PEERCRED
1991 #  if defined(__OpenBSD__)
1992         struct sockpeercred cred;
1993 #  else
1994         struct ucred cred;
1995 #  endif
1996         socklen_t credsize = sizeof (cred);
1997 #endif
1998         MonoError error;
1999         MonoDomain *domain = mono_domain_get ();
2000         MonoObject *obj;
2001         MonoClass *obj_class;
2002         MonoClassField *field;
2003
2004         *werror = 0;
2005
2006 #if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
2007         if (level == SocketOptionLevel_Socket && name == SocketOptionName_ExclusiveAddressUse) {
2008                 system_level = SOL_SOCKET;
2009                 system_name = SO_REUSEADDR;
2010                 ret = 0;
2011         } else
2012 #endif
2013         {
2014                 ret = convert_sockopt_level_and_name ((MonoSocketOptionLevel)level, (MonoSocketOptionName)name, &system_level, &system_name);
2015         }
2016
2017         if (ret == -1) {
2018                 *werror = WSAENOPROTOOPT;
2019                 return;
2020         }
2021         if (ret == -2) {
2022                 *obj_val = int_to_object (domain, 0, &error);
2023                 mono_error_set_pending_exception (&error);
2024                 return;
2025         }
2026
2027         MONO_ENTER_GC_SAFE;
2028
2029         /* No need to deal with MulticastOption names here, because
2030          * you cant getsockopt AddMembership or DropMembership (the
2031          * int getsockopt will error, causing an exception)
2032          */
2033         switch (name) {
2034         case SocketOptionName_Linger:
2035         case SocketOptionName_DontLinger:
2036                 ret = _wapi_getsockopt (sock, system_level, system_name, &linger, &lingersize);
2037                 break;
2038
2039         case SocketOptionName_SendTimeout:
2040         case SocketOptionName_ReceiveTimeout:
2041                 ret = _wapi_getsockopt (sock, system_level, system_name, (char *)&time_ms, &time_ms_size);
2042                 break;
2043
2044 #ifdef SO_PEERCRED
2045         case SocketOptionName_PeerCred:
2046                 ret = _wapi_getsockopt (sock, system_level, system_name, &cred, &credsize);
2047                 break;
2048 #endif
2049
2050         default:
2051                 ret = _wapi_getsockopt (sock, system_level, system_name, &val, &valsize);
2052         }
2053
2054         MONO_EXIT_GC_SAFE;
2055
2056         if (ret == SOCKET_ERROR) {
2057                 *werror = WSAGetLastError ();
2058                 return;
2059         }
2060
2061         switch (name) {
2062         case SocketOptionName_Linger:
2063                 /* build a System.Net.Sockets.LingerOption */
2064                 obj_class = mono_class_load_from_name (get_socket_assembly (),
2065                                                                                            "System.Net.Sockets",
2066                                                                                            "LingerOption");
2067                 obj = mono_object_new_checked (domain, obj_class, &error);
2068                 if (!mono_error_ok (&error)) {
2069                         mono_error_set_pending_exception (&error);
2070                         return;
2071                 }
2072
2073                 /* Locate and set the fields "bool enabled" and "int
2074                  * lingerTime"
2075                  */
2076                 field = mono_class_get_field_from_name(obj_class, "enabled");
2077                 *(guint8 *)(((char *)obj)+field->offset) = linger.l_onoff;
2078
2079                 field = mono_class_get_field_from_name(obj_class, "lingerTime");
2080                 *(guint32 *)(((char *)obj)+field->offset)=linger.l_linger;
2081                 break;
2082         case SocketOptionName_DontLinger:
2083                 /* construct a bool int in val - true if linger is off */
2084                 obj = int_to_object (domain, !linger.l_onoff, &error);
2085                 mono_error_set_pending_exception (&error);
2086                 break;
2087         case SocketOptionName_SendTimeout:
2088         case SocketOptionName_ReceiveTimeout:
2089                 obj = int_to_object (domain, time_ms, &error);
2090                 mono_error_set_pending_exception (&error);
2091                 break;
2092
2093 #ifdef SO_PEERCRED
2094         case SocketOptionName_PeerCred:  {
2095                 /*
2096                  * build a Mono.Posix.PeerCred+PeerCredData if
2097                  * possible
2098                  */
2099                 static MonoImage *mono_posix_image = NULL;
2100                 MonoPeerCredData *cred_data;
2101
2102                 if (mono_posix_image == NULL) {
2103                         mono_posix_image = mono_image_loaded ("Mono.Posix");
2104                         if (!mono_posix_image) {
2105                                 MonoAssembly *sa = mono_assembly_open ("Mono.Posix.dll", NULL);
2106                                 if (!sa) {
2107                                         *werror = WSAENOPROTOOPT;
2108                                         return;
2109                                 } else {
2110                                         mono_posix_image = mono_assembly_get_image (sa);
2111                                 }
2112                         }
2113                 }
2114
2115                 obj_class = mono_class_load_from_name (mono_posix_image,
2116                                                  "Mono.Posix",
2117                                                  "PeerCredData");
2118                 obj = mono_object_new_checked (domain, obj_class, &error);
2119                 if (!mono_error_ok (&error)) {
2120                         mono_error_set_pending_exception (&error);
2121                         return;
2122                 }
2123                 cred_data = (MonoPeerCredData *)obj;
2124                 cred_data->pid = cred.pid;
2125                 cred_data->uid = cred.uid;
2126                 cred_data->gid = cred.gid;
2127                 break;
2128         }
2129 #endif
2130
2131         default:
2132 #if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
2133                 if (level == SocketOptionLevel_Socket && name == SocketOptionName_ExclusiveAddressUse)
2134                         val = val ? 0 : 1;
2135 #endif
2136                 obj = int_to_object (domain, val, &error);
2137                 mono_error_set_pending_exception (&error);
2138         }
2139
2140         *obj_val = obj;
2141 }
2142
2143 void
2144 ves_icall_System_Net_Sockets_Socket_GetSocketOption_arr_internal (SOCKET sock, gint32 level, gint32 name, MonoArray **byte_val, gint32 *werror)
2145 {
2146         int system_level = 0;
2147         int system_name = 0;
2148         int ret;
2149         guchar *buf;
2150         socklen_t valsize;
2151
2152         *werror = 0;
2153
2154         ret = convert_sockopt_level_and_name((MonoSocketOptionLevel)level, (MonoSocketOptionName)name, &system_level,
2155                                                                                  &system_name);
2156         if (ret == -1) {
2157                 *werror = WSAENOPROTOOPT;
2158                 return;
2159         }
2160         if (ret == -2)
2161                 return;
2162
2163         valsize = mono_array_length (*byte_val);
2164         buf = mono_array_addr (*byte_val, guchar, 0);
2165
2166         MONO_ENTER_GC_SAFE;
2167
2168         ret = _wapi_getsockopt (sock, system_level, system_name, buf, &valsize);
2169
2170         MONO_EXIT_GC_SAFE;
2171
2172         if (ret == SOCKET_ERROR)
2173                 *werror = WSAGetLastError ();
2174 }
2175
2176 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2177 static struct in_addr
2178 ipaddress_to_struct_in_addr (MonoObject *ipaddr)
2179 {
2180         struct in_addr inaddr;
2181         MonoClassField *field;
2182
2183         field = mono_class_get_field_from_name (ipaddr->vtable->klass, "m_Address");
2184
2185         /* No idea why .net uses a 64bit type to hold a 32bit value...
2186          *
2187          * Internal value of IPAddess is in little-endian order
2188          */
2189         inaddr.s_addr = GUINT_FROM_LE ((guint32)*(guint64 *)(((char *)ipaddr) + field->offset));
2190
2191         return inaddr;
2192 }
2193
2194 static struct in6_addr
2195 ipaddress_to_struct_in6_addr (MonoObject *ipaddr)
2196 {
2197         struct in6_addr in6addr;
2198         MonoClassField *field;
2199         MonoArray *data;
2200         int i;
2201
2202         field = mono_class_get_field_from_name (ipaddr->vtable->klass, "m_Numbers");
2203         g_assert (field);
2204         data = *(MonoArray **)(((char *)ipaddr) + field->offset);
2205
2206         for (i = 0; i < 8; i++) {
2207                 const guint16 s = GUINT16_TO_BE (mono_array_get (data, guint16, i));
2208
2209 /* Solaris/MacOS have only the 8 bit version. */
2210 #ifndef s6_addr16
2211                 in6addr.s6_addr[2 * i + 1] = (s >> 8) & 0xff;
2212                 in6addr.s6_addr[2 * i] = s & 0xff;
2213 #else
2214                 in6addr.s6_addr16[i] = s;
2215 #endif
2216         }
2217         return in6addr;
2218 }
2219 #endif
2220
2221 #if defined(__APPLE__) || defined(__FreeBSD__)
2222
2223 static int
2224 get_local_interface_id (int family)
2225 {
2226 #if !defined(HAVE_GETIFADDRS) || !defined(HAVE_IF_NAMETOINDEX)
2227         return 0;
2228 #else
2229         struct ifaddrs *ifap = NULL, *ptr;
2230         int idx = 0;
2231
2232         if (getifaddrs (&ifap))
2233                 return 0;
2234
2235         for (ptr = ifap; ptr; ptr = ptr->ifa_next) {
2236                 if (!ptr->ifa_addr || !ptr->ifa_name)
2237                         continue;
2238                 if (ptr->ifa_addr->sa_family != family)
2239                         continue;
2240                 if ((ptr->ifa_flags & IFF_LOOPBACK) != 0)
2241                         continue;
2242                 if ((ptr->ifa_flags & IFF_MULTICAST) == 0)
2243                         continue;
2244
2245                 idx = if_nametoindex (ptr->ifa_name);
2246                 break;
2247         }
2248
2249         freeifaddrs (ifap);
2250         return idx;
2251 #endif
2252 }
2253
2254 #endif /* defined(__APPLE__) || defined(__FreeBSD__) */
2255
2256 void
2257 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)
2258 {
2259         struct linger linger;
2260         int system_level = 0;
2261         int system_name = 0;
2262         int ret;
2263         int sol_ip;
2264         int sol_ipv6;
2265
2266         *werror = 0;
2267
2268         sol_ipv6 = mono_networking_get_ipv6_protocol ();
2269         sol_ip = mono_networking_get_ip_protocol ();
2270
2271         ret = convert_sockopt_level_and_name ((MonoSocketOptionLevel)level, (MonoSocketOptionName)name, &system_level,
2272                                                                                   &system_name);
2273
2274 #if !defined(SO_EXCLUSIVEADDRUSE) && defined(SO_REUSEADDR)
2275         if (level == SocketOptionLevel_Socket && name == SocketOptionName_ExclusiveAddressUse) {
2276                 system_name = SO_REUSEADDR;
2277                 int_val = int_val ? 0 : 1;
2278                 ret = 0;
2279         }
2280 #endif
2281
2282         if (ret == -1) {
2283                 *werror = WSAENOPROTOOPT;
2284                 return;
2285         }
2286         if (ret == -2)
2287                 return;
2288
2289         /* Only one of obj_val, byte_val or int_val has data */
2290         if (obj_val) {
2291                 MonoClassField *field;
2292                 int valsize;
2293
2294                 switch (name) {
2295                 case SocketOptionName_Linger:
2296                         /* Dig out "bool enabled" and "int lingerTime"
2297                          * fields
2298                          */
2299                         field = mono_class_get_field_from_name (obj_val->vtable->klass, "enabled");
2300                         linger.l_onoff = *(guint8 *)(((char *)obj_val) + field->offset);
2301                         field = mono_class_get_field_from_name (obj_val->vtable->klass, "lingerTime");
2302                         linger.l_linger = *(guint32 *)(((char *)obj_val) + field->offset);
2303
2304                         valsize = sizeof (linger);
2305                         ret = _wapi_setsockopt (sock, system_level,
2306                                                                         system_name, &linger, valsize);
2307                         break;
2308                 case SocketOptionName_AddMembership:
2309                 case SocketOptionName_DropMembership:
2310 #if defined(HAVE_STRUCT_IP_MREQN) || defined(HAVE_STRUCT_IP_MREQ)
2311                 {
2312                         MonoObject *address = NULL;
2313
2314                         if (system_level == sol_ipv6) {
2315                                 struct ipv6_mreq mreq6;
2316
2317                                 /*
2318                                  *      Get group address
2319                                  */
2320                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "m_Group");
2321                                 g_assert (field);
2322                                 address = *(MonoObject **)(((char *)obj_val) + field->offset);
2323
2324                                 if (address)
2325                                         mreq6.ipv6mr_multiaddr = ipaddress_to_struct_in6_addr (address);
2326
2327                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "m_Interface");
2328                                 mreq6.ipv6mr_interface = *(guint64 *)(((char *)obj_val) + field->offset);
2329
2330 #if defined(__APPLE__) || defined(__FreeBSD__)
2331                                 /*
2332                                 * Bug #5504:
2333                                 *
2334                                 * Mac OS Lion doesn't allow ipv6mr_interface = 0.
2335                                 *
2336                                 * Tests on Windows and Linux show that the multicast group is only
2337                                 * joined on one NIC when interface = 0, so we simply use the interface
2338                                 * id from the first non-loopback interface (this is also what
2339                                 * Dns.GetHostName (string.Empty) would return).
2340                                 */
2341                                 if (!mreq6.ipv6mr_interface)
2342                                         mreq6.ipv6mr_interface = get_local_interface_id (AF_INET6);
2343 #endif
2344
2345                                 ret = _wapi_setsockopt (sock, system_level,
2346                                                                                 system_name, &mreq6,
2347                                                                                 sizeof (mreq6));
2348                         } else if (system_level == sol_ip) {
2349 #ifdef HAVE_STRUCT_IP_MREQN
2350                                 struct ip_mreqn mreq = {{0}};
2351 #else
2352                                 struct ip_mreq mreq = {{0}};
2353 #endif /* HAVE_STRUCT_IP_MREQN */
2354
2355                                 /*
2356                                  * pain! MulticastOption holds two IPAddress
2357                                  * members, so I have to dig the value out of
2358                                  * those :-(
2359                                  */
2360                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "group");
2361                                 address = *(MonoObject **)(((char *)obj_val) + field->offset);
2362
2363                                 /* address might not be defined and if so, set the address to ADDR_ANY.
2364                                  */
2365                                 if (address)
2366                                         mreq.imr_multiaddr = ipaddress_to_struct_in_addr (address);
2367
2368                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "localAddress");
2369                                 address = *(MonoObject **)(((char *)obj_val) + field->offset);
2370
2371 #ifdef HAVE_STRUCT_IP_MREQN
2372                                 if (address)
2373                                         mreq.imr_address = ipaddress_to_struct_in_addr (address);
2374
2375                                 field = mono_class_get_field_from_name (obj_val->vtable->klass, "ifIndex");
2376                                 mreq.imr_ifindex = *(gint32 *)(((char *)obj_val) + field->offset);
2377 #else
2378                                 if (address)
2379                                         mreq.imr_interface = ipaddress_to_struct_in_addr (address);
2380 #endif /* HAVE_STRUCT_IP_MREQN */
2381
2382                                 ret = _wapi_setsockopt (sock, system_level,
2383                                                                                 system_name, &mreq,
2384                                                                                 sizeof (mreq));
2385                         }
2386                         break;
2387                 }
2388 #endif /* HAVE_STRUCT_IP_MREQN || HAVE_STRUCT_IP_MREQ */
2389                 default:
2390                         /* Cause an exception to be thrown */
2391                         *werror = WSAEINVAL;
2392                         return;
2393                 }
2394         } else if (byte_val!=NULL) {
2395                 int valsize = mono_array_length (byte_val);
2396                 guchar *buf = mono_array_addr (byte_val, guchar, 0);
2397
2398                 switch(name) {
2399                 case SocketOptionName_DontLinger:
2400                         if (valsize == 1) {
2401                                 linger.l_onoff = (*buf) ? 0 : 1;
2402                                 linger.l_linger = 0;
2403                                 ret = _wapi_setsockopt (sock, system_level, system_name, &linger, sizeof (linger));
2404                         } else {
2405                                 *werror = WSAEINVAL;
2406                         }
2407                         break;
2408                 default:
2409                         ret = _wapi_setsockopt (sock, system_level, system_name, buf, valsize);
2410                         break;
2411                 }
2412         } else {
2413                 /* ReceiveTimeout/SendTimeout get here */
2414                 switch (name) {
2415                 case SocketOptionName_DontLinger:
2416                         linger.l_onoff = !int_val;
2417                         linger.l_linger = 0;
2418                         ret = _wapi_setsockopt (sock, system_level, system_name, &linger, sizeof (linger));
2419                         break;
2420                 case SocketOptionName_MulticastInterface:
2421 #ifndef HOST_WIN32
2422 #ifdef HAVE_STRUCT_IP_MREQN
2423                         int_val = GUINT32_FROM_BE (int_val);
2424                         if ((int_val & 0xff000000) == 0) {
2425                                 /* int_val is interface index */
2426                                 struct ip_mreqn mreq = {{0}};
2427                                 mreq.imr_ifindex = int_val;
2428                                 ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &mreq, sizeof (mreq));
2429                                 break;
2430                         }
2431                         int_val = GUINT32_TO_BE (int_val);
2432 #endif /* HAVE_STRUCT_IP_MREQN */
2433 #endif /* HOST_WIN32 */
2434                         /* int_val is in_addr */
2435                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2436                         break;
2437                 case SocketOptionName_DontFragment:
2438 #ifdef HAVE_IP_MTU_DISCOVER
2439                         /* Fiddle with the value slightly if we're
2440                          * turning DF on
2441                          */
2442                         if (int_val == 1)
2443                                 int_val = IP_PMTUDISC_DO;
2444                         /* Fall through */
2445 #endif
2446
2447                 default:
2448                         ret = _wapi_setsockopt (sock, system_level, system_name, (char *) &int_val, sizeof (int_val));
2449                 }
2450         }
2451
2452         if (ret == SOCKET_ERROR)
2453                 *werror = WSAGetLastError ();
2454 }
2455
2456 void
2457 ves_icall_System_Net_Sockets_Socket_Shutdown_internal (SOCKET sock, gint32 how, gint32 *werror)
2458 {
2459         int ret;
2460         gboolean interrupted;
2461
2462         *werror = 0;
2463
2464         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
2465         if (interrupted) {
2466                 *werror = WSAEINTR;
2467                 return;
2468         }
2469
2470         MONO_ENTER_GC_SAFE;
2471
2472         /* Currently, the values for how (recv=0, send=1, both=2) match the BSD API */
2473         ret = _wapi_shutdown (sock, how);
2474
2475         MONO_EXIT_GC_SAFE;
2476
2477         if (ret == SOCKET_ERROR)
2478                 *werror = WSAGetLastError ();
2479
2480         mono_thread_info_uninstall_interrupt (&interrupted);
2481         if (interrupted) {
2482                 *werror = WSAEINTR;
2483         }
2484
2485 }
2486
2487 gint
2488 ves_icall_System_Net_Sockets_Socket_IOControl_internal (SOCKET sock, gint32 code, MonoArray *input, MonoArray *output, gint32 *werror)
2489 {
2490         glong output_bytes = 0;
2491         gchar *i_buffer, *o_buffer;
2492         gint i_len, o_len;
2493         gint ret;
2494
2495         *werror = 0;
2496
2497         if ((guint32)code == FIONBIO)
2498                 /* Invalid command. Must use Socket.Blocking */
2499                 return -1;
2500
2501         if (input == NULL) {
2502                 i_buffer = NULL;
2503                 i_len = 0;
2504         } else {
2505                 i_buffer = mono_array_addr (input, gchar, 0);
2506                 i_len = mono_array_length (input);
2507         }
2508
2509         if (output == NULL) {
2510                 o_buffer = NULL;
2511                 o_len = 0;
2512         } else {
2513                 o_buffer = mono_array_addr (output, gchar, 0);
2514                 o_len = mono_array_length (output);
2515         }
2516
2517         MONO_ENTER_GC_SAFE;
2518
2519         ret = WSAIoctl (sock, code, i_buffer, i_len, o_buffer, o_len, &output_bytes, NULL, NULL);
2520
2521         MONO_EXIT_GC_SAFE;
2522
2523         if (ret == SOCKET_ERROR) {
2524                 *werror = WSAGetLastError ();
2525                 return -1;
2526         }
2527
2528         return (gint)output_bytes;
2529 }
2530
2531 static gboolean
2532 addrinfo_to_IPHostEntry (MonoAddressInfo *info, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list, gboolean add_local_ips, MonoError *error)
2533 {
2534         gint32 count, i;
2535         MonoAddressEntry *ai = NULL;
2536         struct in_addr *local_in = NULL;
2537         int nlocal_in = 0;
2538         struct in6_addr *local_in6 = NULL;
2539         int nlocal_in6 = 0;
2540         int addr_index;
2541         MonoDomain *domain = mono_domain_get ();
2542
2543         mono_error_init (error);
2544         addr_index = 0;
2545         *h_aliases = mono_array_new_checked (domain, mono_get_string_class (), 0, error);
2546         return_val_if_nok (error, FALSE);
2547         if (add_local_ips) {
2548                 local_in = (struct in_addr *) mono_get_local_interfaces (AF_INET, &nlocal_in);
2549                 local_in6 = (struct in6_addr *) mono_get_local_interfaces (AF_INET6, &nlocal_in6);
2550                 if (nlocal_in || nlocal_in6) {
2551                         char addr [INET6_ADDRSTRLEN];
2552                         *h_addr_list = mono_array_new_checked (domain, mono_get_string_class (), nlocal_in + nlocal_in6, error);
2553                         if (!is_ok (error))
2554                                 goto leave;
2555
2556                         if (nlocal_in) {
2557                                 MonoString *addr_string;
2558                                 int i;
2559
2560                                 for (i = 0; i < nlocal_in; i++) {
2561                                         MonoAddress maddr;
2562                                         mono_address_init (&maddr, AF_INET, &local_in [i]);
2563                                         if (mono_networking_addr_to_str (&maddr, addr, sizeof (addr))) {
2564                                                 addr_string = mono_string_new (domain, addr);
2565                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2566                                                 addr_index++;
2567                                         }
2568                                 }
2569                         }
2570
2571                         if (nlocal_in6) {
2572                                 MonoString *addr_string;
2573                                 int i;
2574
2575                                 for (i = 0; i < nlocal_in6; i++) {
2576                                         MonoAddress maddr;
2577                                         mono_address_init (&maddr, AF_INET6, &local_in6 [i]);
2578                                         if (mono_networking_addr_to_str (&maddr, addr, sizeof (addr))) {
2579                                                 addr_string = mono_string_new (domain, addr);
2580                                                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2581                                                 addr_index++;
2582                                         }
2583                                 }
2584                         }
2585
2586                 leave:
2587                         g_free (local_in);
2588                         g_free (local_in6);
2589                         if (info)
2590                                 mono_free_address_info (info);
2591                         return is_ok (error);;
2592                 }
2593
2594                 g_free (local_in);
2595                 g_free (local_in6);
2596         }
2597
2598         for (count = 0, ai = info->entries; ai != NULL; ai = ai->next) {
2599                 if (ai->family != AF_INET && ai->family != AF_INET6)
2600                         continue;
2601                 count++;
2602         }
2603
2604         *h_addr_list = mono_array_new_checked (domain, mono_get_string_class (), count, error);
2605         if (!is_ok (error))
2606                 goto leave2;
2607
2608         for (ai = info->entries, i = 0; ai != NULL; ai = ai->next) {
2609                 MonoAddress maddr;
2610                 MonoString *addr_string;
2611                 char buffer [INET6_ADDRSTRLEN]; /* Max. size for IPv6 */
2612
2613                 if ((ai->family != PF_INET) && (ai->family != PF_INET6))
2614                         continue;
2615
2616                 mono_address_init (&maddr, ai->family, &ai->address);
2617                 if (mono_networking_addr_to_str (&maddr, buffer, sizeof (buffer)))
2618                         addr_string = mono_string_new (domain, buffer);
2619                 else
2620                         addr_string = mono_string_new (domain, "");
2621
2622                 mono_array_setref (*h_addr_list, addr_index, addr_string);
2623
2624                 if (!i) {
2625                         i++;
2626                         if (ai->canonical_name != NULL) {
2627                                 *h_name = mono_string_new (domain, ai->canonical_name);
2628                         } else {
2629                                 *h_name = mono_string_new (domain, buffer);
2630                         }
2631                 }
2632
2633                 addr_index++;
2634         }
2635
2636 leave2:
2637         if (info)
2638                 mono_free_address_info (info);
2639
2640         return is_ok (error);
2641 }
2642
2643 static int
2644 get_addrinfo_family_hint (MonoError *error)
2645 {
2646         int hint;
2647
2648         mono_error_init (error);
2649
2650         hint = get_family_hint (error);
2651         return_val_if_nok (error, 0);
2652
2653         switch (hint) {
2654         case PF_UNSPEC:
2655                 return MONO_HINT_UNSPECIFIED;
2656         case PF_INET:
2657                 return MONO_HINT_IPV4;
2658 #ifdef PF_INET6
2659         case PF_INET6:
2660                 return MONO_HINT_IPV6;
2661 #endif
2662         default:
2663                 g_error ("invalid hint");
2664                 return 0;
2665         }
2666 }
2667
2668 MonoBoolean
2669 ves_icall_System_Net_Dns_GetHostByName_internal (MonoString *host, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2670 {
2671         MonoError error;
2672         gboolean add_local_ips = FALSE, add_info_ok = TRUE;
2673         gchar this_hostname [256];
2674         MonoAddressInfo *info = NULL;
2675         int hint;
2676
2677         char *hostname = mono_string_to_utf8_checked (host, &error);
2678         if (mono_error_set_pending_exception (&error))
2679                 return FALSE;
2680
2681         hint = get_addrinfo_family_hint (&error);
2682         if (!mono_error_ok (&error)) {
2683                 mono_error_set_pending_exception (&error);
2684                 return FALSE;
2685         }
2686
2687         if (*hostname == '\0') {
2688                 add_local_ips = TRUE;
2689                 *h_name = host;
2690         }
2691
2692         if (!add_local_ips && gethostname (this_hostname, sizeof (this_hostname)) != -1) {
2693                 if (!strcmp (hostname, this_hostname)) {
2694                         add_local_ips = TRUE;
2695                         *h_name = host;
2696                 }
2697         }
2698
2699 #ifdef HOST_WIN32
2700         // Win32 APIs already returns local interface addresses for empty hostname ("")
2701         // so we never want to add them manually.
2702         add_local_ips = FALSE;
2703         if (mono_get_address_info(hostname, 0, MONO_HINT_CANONICAL_NAME | hint, &info))
2704                 add_info_ok = FALSE;
2705 #else
2706         if (*hostname && mono_get_address_info (hostname, 0, MONO_HINT_CANONICAL_NAME | hint, &info))
2707                 add_info_ok = FALSE;
2708 #endif
2709
2710         g_free(hostname);
2711
2712         if (add_info_ok) {
2713                 MonoBoolean result = addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, add_local_ips, &error);
2714                 mono_error_set_pending_exception (&error);
2715                 return result;
2716         }
2717         return FALSE;
2718 }
2719
2720 MonoBoolean
2721 ves_icall_System_Net_Dns_GetHostByAddr_internal (MonoString *addr, MonoString **h_name, MonoArray **h_aliases, MonoArray **h_addr_list)
2722 {
2723         char *address;
2724         struct sockaddr_in saddr;
2725         struct sockaddr_in6 saddr6;
2726         MonoAddressInfo *info = NULL;
2727         MonoError error;
2728         gint32 family, hint;
2729         gchar hostname [NI_MAXHOST] = { 0 };
2730         gboolean ret;
2731
2732         address = mono_string_to_utf8_checked (addr, &error);
2733         if (mono_error_set_pending_exception (&error))
2734                 return FALSE;
2735
2736         if (inet_pton (AF_INET, address, &saddr.sin_addr ) == 1) {
2737                 family = AF_INET;
2738                 saddr.sin_family = AF_INET;
2739         } else if (inet_pton (AF_INET6, address, &saddr6.sin6_addr) == 1) {
2740                 family = AF_INET6;
2741                 saddr6.sin6_family = AF_INET6;
2742         } else {
2743                 g_free (address);
2744                 return FALSE;
2745         }
2746
2747         g_free (address);
2748
2749         MONO_ENTER_GC_SAFE;
2750
2751         switch (family) {
2752         case AF_INET: {
2753 #if HAVE_SOCKADDR_IN_SIN_LEN
2754                 saddr.sin_len = sizeof (saddr);
2755 #endif
2756                 ret = getnameinfo ((struct sockaddr*)&saddr, sizeof (saddr), hostname, sizeof (hostname), NULL, 0, 0) == 0;
2757                 break;
2758         }
2759         case AF_INET6: {
2760 #if HAVE_SOCKADDR_IN6_SIN_LEN
2761                 saddr6.sin6_len = sizeof (saddr6);
2762 #endif
2763                 ret = getnameinfo ((struct sockaddr*)&saddr6, sizeof (saddr6), hostname, sizeof (hostname), NULL, 0, 0) == 0;
2764                 break;
2765         }
2766         default:
2767                 g_assert_not_reached ();
2768         }
2769
2770         MONO_EXIT_GC_SAFE;
2771
2772         if (!ret)
2773                 return FALSE;
2774
2775         hint = get_addrinfo_family_hint (&error);
2776         if (!mono_error_ok (&error)) {
2777                 mono_error_set_pending_exception (&error);
2778                 return FALSE;
2779         }
2780         if (mono_get_address_info (hostname, 0, hint | MONO_HINT_CANONICAL_NAME | MONO_HINT_CONFIGURED_ONLY, &info) != 0)
2781                 return FALSE;
2782
2783         MonoBoolean result = addrinfo_to_IPHostEntry (info, h_name, h_aliases, h_addr_list, FALSE, &error);
2784         mono_error_set_pending_exception (&error);
2785         return result;
2786 }
2787
2788 MonoBoolean
2789 ves_icall_System_Net_Dns_GetHostName_internal (MonoString **h_name)
2790 {
2791         gchar hostname [NI_MAXHOST] = { 0 };
2792         int ret;
2793
2794         ret = gethostname (hostname, sizeof (hostname));
2795         if (ret == -1)
2796                 return FALSE;
2797
2798         *h_name = mono_string_new (mono_domain_get (), hostname);
2799
2800         return TRUE;
2801 }
2802
2803 gboolean
2804 ves_icall_System_Net_Sockets_Socket_SendFile_internal (SOCKET sock, MonoString *filename, MonoArray *pre_buffer, MonoArray *post_buffer, gint flags, gint32 *werror, gboolean blocking)
2805 {
2806         HANDLE file;
2807         gboolean ret;
2808         gboolean interrupted;
2809         TRANSMIT_FILE_BUFFERS buffers;
2810
2811         if (filename == NULL)
2812                 return FALSE;
2813
2814         /* FIXME: replace file by a proper fd that we can call open and close on, as they are interruptible */
2815
2816         file = ves_icall_System_IO_MonoIO_Open (filename, FileMode_Open, FileAccess_Read, FileShare_Read, 0, werror);
2817
2818         if (file == INVALID_HANDLE_VALUE) {
2819                 SetLastError (*werror);
2820                 return FALSE;
2821         }
2822
2823         memset (&buffers, 0, sizeof (buffers));
2824         if (pre_buffer != NULL) {
2825                 buffers.Head = mono_array_addr (pre_buffer, guchar, 0);
2826                 buffers.HeadLength = mono_array_length (pre_buffer);
2827         }
2828         if (post_buffer != NULL) {
2829                 buffers.Tail = mono_array_addr (post_buffer, guchar, 0);
2830                 buffers.TailLength = mono_array_length (post_buffer);
2831         }
2832
2833         mono_thread_info_install_interrupt (abort_syscall, (gpointer) (gsize) mono_native_thread_id_get (), &interrupted);
2834         if (interrupted) {
2835                 CloseHandle (file);
2836                 SetLastError (WSAEINTR);
2837                 return FALSE;
2838         }
2839
2840         MONO_ENTER_GC_SAFE;
2841
2842 #ifdef HOST_WIN32
2843         ret = alertable_TransmitFile (sock, file, 0, 0, NULL, &buffers, flags, blocking);
2844 #else
2845         ret = TransmitFile (sock, file, 0, 0, NULL, &buffers, flags);
2846 #endif
2847
2848         MONO_EXIT_GC_SAFE;
2849
2850         if (!ret)
2851                 *werror = WSAGetLastError ();
2852
2853         mono_thread_info_uninstall_interrupt (&interrupted);
2854         if (interrupted) {
2855                 CloseHandle (file);
2856                 *werror = WSAEINTR;
2857                 return FALSE;
2858         }
2859
2860         MONO_ENTER_GC_SAFE;
2861
2862         CloseHandle (file);
2863
2864         MONO_EXIT_GC_SAFE;
2865
2866         if (*werror)
2867                 return FALSE;
2868
2869         return ret;
2870 }
2871
2872 gboolean
2873 ves_icall_System_Net_Sockets_Socket_SupportPortReuse (MonoProtocolType proto)
2874 {
2875 #if defined (SO_REUSEPORT) || defined (HOST_WIN32)
2876         return TRUE;
2877 #else
2878 #ifdef __linux__
2879         /* Linux always supports double binding for UDP, even on older kernels. */
2880         if (proto == ProtocolType_Udp)
2881                 return TRUE;
2882 #endif
2883         return FALSE;
2884 #endif
2885 }
2886
2887 void
2888 mono_network_init (void)
2889 {
2890         mono_networking_init ();
2891 }
2892
2893 void
2894 mono_network_cleanup (void)
2895 {
2896         _wapi_cleanup_networking ();
2897         mono_networking_shutdown ();
2898 }
2899
2900 void
2901 icall_cancel_blocking_socket_operation (MonoThread *thread)
2902 {
2903         MonoInternalThread *internal;
2904
2905         internal = thread->internal_thread;
2906         g_assert (internal);
2907
2908         mono_thread_info_abort_socket_syscall_for_close (MONO_UINT_TO_NATIVE_THREAD_ID (internal->tid));
2909 }
2910
2911 #endif /* #ifndef DISABLE_SOCKETS */