git.oblomov.eu Git - wine/blob - dlls/rpcrt4/rpc_transport.c

   1 /*
   2  * RPC transport layer
   3  *
   4  * Copyright 2001 Ove Kåven, TransGaming Technologies
   5  * Copyright 2003 Mike Hearn
   6  * Copyright 2004 Filip Navara
   7  * Copyright 2006 Mike McCormack
   8  * Copyright 2006 Damjan Jovanovic
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  *
  24  */
  25
  26 #include "config.h"
  27
  28 #include <stdarg.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #include <assert.h>
  32 #include <stdlib.h>
  33 #include <sys/types.h>
  34
  35 #if defined(__MINGW32__) || defined (_MSC_VER)
  36 # include <ws2tcpip.h>
  37 # ifndef EADDRINUSE
  38 #  define EADDRINUSE WSAEADDRINUSE
  39 # endif
  40 # ifndef EAGAIN
  41 #  define EAGAIN WSAEWOULDBLOCK
  42 # endif
  43 # undef errno
  44 # define errno WSAGetLastError()
  45 #else
  46 # include <errno.h>
  47 # ifdef HAVE_UNISTD_H
  48 #  include <unistd.h>
  49 # endif
  50 # include <fcntl.h>
  51 # ifdef HAVE_SYS_SOCKET_H
  52 #  include <sys/socket.h>
  53 # endif
  54 # ifdef HAVE_NETINET_IN_H
  55 #  include <netinet/in.h>
  56 # endif
  57 # ifdef HAVE_NETINET_TCP_H
  58 #  include <netinet/tcp.h>
  59 # endif
  60 # ifdef HAVE_ARPA_INET_H
  61 #  include <arpa/inet.h>
  62 # endif
  63 # ifdef HAVE_NETDB_H
  64 #  include <netdb.h>
  65 # endif
  66 # ifdef HAVE_SYS_POLL_H
  67 #  include <sys/poll.h>
  68 # endif
  69 # ifdef HAVE_SYS_FILIO_H
  70 #  include <sys/filio.h>
  71 # endif
  72 # ifdef HAVE_SYS_IOCTL_H
  73 #  include <sys/ioctl.h>
  74 # endif
  75 # define closesocket close
  76 # define ioctlsocket ioctl
  77 #endif /* defined(__MINGW32__) || defined (_MSC_VER) */
  78
  79 #include "windef.h"
  80 #include "winbase.h"
  81 #include "winnls.h"
  82 #include "winerror.h"
  83 #include "wininet.h"
  84 #include "winternl.h"
  85 #include "wine/unicode.h"
  86
  87 #include "rpc.h"
  88 #include "rpcndr.h"
  89
  90 #include "wine/debug.h"
  91
  92 #include "rpc_binding.h"
  93 #include "rpc_assoc.h"
  94 #include "rpc_message.h"
  95 #include "rpc_server.h"
  96 #include "epm_towers.h"
  97
  98 #ifndef SOL_TCP
  99 # define SOL_TCP IPPROTO_TCP
 100 #endif
 101
 102 #define DEFAULT_NCACN_HTTP_TIMEOUT (60 * 1000)
 103
 104 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
 105
 106 static RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection);
 107
 108 /**** ncacn_np support ****/
 109
 110 typedef struct _RpcConnection_np
 111 {
 112   RpcConnection common;
 113   HANDLE pipe;
 114   HANDLE listen_thread;
 115   BOOL listening;
 116 } RpcConnection_np;
 117
 118 static RpcConnection *rpcrt4_conn_np_alloc(void)
 119 {
 120   RpcConnection_np *npc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcConnection_np));
 121   return &npc->common;
 122 }
 123
 124 static DWORD CALLBACK listen_thread(void *arg)
 125 {
 126   RpcConnection_np *npc = arg;
 127   for (;;)
 128   {
 129       if (ConnectNamedPipe(npc->pipe, NULL))
 130           return RPC_S_OK;
 131
 132       switch(GetLastError())
 133       {
 134       case ERROR_PIPE_CONNECTED:
 135           return RPC_S_OK;
 136       case ERROR_HANDLES_CLOSED:
 137           /* connection closed during listen */
 138           return RPC_S_NO_CONTEXT_AVAILABLE;
 139       case ERROR_NO_DATA_DETECTED:
 140           /* client has disconnected, retry */
 141           DisconnectNamedPipe( npc->pipe );
 142           break;
 143       default:
 144           npc->listening = FALSE;
 145           WARN("Couldn't ConnectNamedPipe (error was %d)\n", GetLastError());
 146           return RPC_S_OUT_OF_RESOURCES;
 147       }
 148   }
 149 }
 150
 151 static RPC_STATUS rpcrt4_conn_listen_pipe(RpcConnection_np *npc)
 152 {
 153   if (npc->listening)
 154     return RPC_S_OK;
 155
 156   npc->listening = TRUE;
 157   npc->listen_thread = CreateThread(NULL, 0, listen_thread, npc, 0, NULL);
 158   if (!npc->listen_thread)
 159   {
 160       npc->listening = FALSE;
 161       ERR("Couldn't create listen thread (error was %d)\n", GetLastError());
 162       return RPC_S_OUT_OF_RESOURCES;
 163   }
 164   return RPC_S_OK;
 165 }
 166
 167 static RPC_STATUS rpcrt4_conn_create_pipe(RpcConnection *Connection, LPCSTR pname)
 168 {
 169   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 170   TRACE("listening on %s\n", pname);
 171
 172   npc->pipe = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX,
 173                                PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE,
 174                                PIPE_UNLIMITED_INSTANCES,
 175                                RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
 176   if (npc->pipe == INVALID_HANDLE_VALUE) {
 177     WARN("CreateNamedPipe failed with error %d\n", GetLastError());
 178     if (GetLastError() == ERROR_FILE_EXISTS)
 179       return RPC_S_DUPLICATE_ENDPOINT;
 180     else
 181       return RPC_S_CANT_CREATE_ENDPOINT;
 182   }
 183
 184   /* Note: we don't call ConnectNamedPipe here because it must be done in the
 185    * server thread as the thread must be alertable */
 186   return RPC_S_OK;
 187 }
 188
 189 static RPC_STATUS rpcrt4_conn_open_pipe(RpcConnection *Connection, LPCSTR pname, BOOL wait)
 190 {
 191   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 192   HANDLE pipe;
 193   DWORD err, dwMode;
 194
 195   TRACE("connecting to %s\n", pname);
 196
 197   while (TRUE) {
 198     DWORD dwFlags = 0;
 199     if (Connection->QOS)
 200     {
 201         dwFlags = SECURITY_SQOS_PRESENT;
 202         switch (Connection->QOS->qos->ImpersonationType)
 203         {
 204             case RPC_C_IMP_LEVEL_DEFAULT:
 205                 /* FIXME: what to do here? */
 206                 break;
 207             case RPC_C_IMP_LEVEL_ANONYMOUS:
 208                 dwFlags |= SECURITY_ANONYMOUS;
 209                 break;
 210             case RPC_C_IMP_LEVEL_IDENTIFY:
 211                 dwFlags |= SECURITY_IDENTIFICATION;
 212                 break;
 213             case RPC_C_IMP_LEVEL_IMPERSONATE:
 214                 dwFlags |= SECURITY_IMPERSONATION;
 215                 break;
 216             case RPC_C_IMP_LEVEL_DELEGATE:
 217                 dwFlags |= SECURITY_DELEGATION;
 218                 break;
 219         }
 220         if (Connection->QOS->qos->IdentityTracking == RPC_C_QOS_IDENTITY_DYNAMIC)
 221             dwFlags |= SECURITY_CONTEXT_TRACKING;
 222     }
 223     pipe = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
 224                        OPEN_EXISTING, dwFlags, 0);
 225     if (pipe != INVALID_HANDLE_VALUE) break;
 226     err = GetLastError();
 227     if (err == ERROR_PIPE_BUSY) {
 228       TRACE("connection failed, error=%x\n", err);
 229       return RPC_S_SERVER_TOO_BUSY;
 230     }
 231     if (!wait || !WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
 232       err = GetLastError();
 233       WARN("connection failed, error=%x\n", err);
 234       return RPC_S_SERVER_UNAVAILABLE;
 235     }
 236   }
 237
 238   /* success */
 239   /* pipe is connected; change to message-read mode. */
 240   dwMode = PIPE_READMODE_MESSAGE;
 241   SetNamedPipeHandleState(pipe, &dwMode, NULL, NULL);
 242   npc->pipe = pipe;
 243
 244   return RPC_S_OK;
 245 }
 246
 247 static RPC_STATUS rpcrt4_ncalrpc_open(RpcConnection* Connection)
 248 {
 249   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 250   static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
 251   RPC_STATUS r;
 252   LPSTR pname;
 253
 254   /* already connected? */
 255   if (npc->pipe)
 256     return RPC_S_OK;
 257
 258   /* protseq=ncalrpc: supposed to use NT LPC ports,
 259    * but we'll implement it with named pipes for now */
 260   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 261   strcat(strcpy(pname, prefix), Connection->Endpoint);
 262   r = rpcrt4_conn_open_pipe(Connection, pname, TRUE);
 263   I_RpcFree(pname);
 264
 265   return r;
 266 }
 267
 268 static RPC_STATUS rpcrt4_protseq_ncalrpc_open_endpoint(RpcServerProtseq* protseq, const char *endpoint)
 269 {
 270   static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
 271   RPC_STATUS r;
 272   LPSTR pname;
 273   RpcConnection *Connection;
 274   char generated_endpoint[22];
 275
 276   if (!endpoint)
 277   {
 278     static LONG lrpc_nameless_id;
 279     DWORD process_id = GetCurrentProcessId();
 280     ULONG id = InterlockedIncrement(&lrpc_nameless_id);
 281     snprintf(generated_endpoint, sizeof(generated_endpoint),
 282              "LRPC%08x.%08x", process_id, id);
 283     endpoint = generated_endpoint;
 284   }
 285
 286   r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
 287                               endpoint, NULL, NULL, NULL);
 288   if (r != RPC_S_OK)
 289       return r;
 290
 291   /* protseq=ncalrpc: supposed to use NT LPC ports,
 292    * but we'll implement it with named pipes for now */
 293   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 294   strcat(strcpy(pname, prefix), Connection->Endpoint);
 295   r = rpcrt4_conn_create_pipe(Connection, pname);
 296   I_RpcFree(pname);
 297
 298   EnterCriticalSection(&protseq->cs);
 299   Connection->Next = protseq->conn;
 300   protseq->conn = Connection;
 301   LeaveCriticalSection(&protseq->cs);
 302
 303   return r;
 304 }
 305
 306 static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection)
 307 {
 308   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 309   static const char prefix[] = "\\\\.";
 310   RPC_STATUS r;
 311   LPSTR pname;
 312
 313   /* already connected? */
 314   if (npc->pipe)
 315     return RPC_S_OK;
 316
 317   /* protseq=ncacn_np: named pipes */
 318   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 319   strcat(strcpy(pname, prefix), Connection->Endpoint);
 320   r = rpcrt4_conn_open_pipe(Connection, pname, FALSE);
 321   I_RpcFree(pname);
 322
 323   return r;
 324 }
 325
 326 static RPC_STATUS rpcrt4_protseq_ncacn_np_open_endpoint(RpcServerProtseq *protseq, const char *endpoint)
 327 {
 328   static const char prefix[] = "\\\\.";
 329   RPC_STATUS r;
 330   LPSTR pname;
 331   RpcConnection *Connection;
 332   char generated_endpoint[21];
 333
 334   if (!endpoint)
 335   {
 336     static LONG np_nameless_id;
 337     DWORD process_id = GetCurrentProcessId();
 338     ULONG id = InterlockedExchangeAdd(&np_nameless_id, 1 );
 339     snprintf(generated_endpoint, sizeof(generated_endpoint),
 340              "\\\\pipe\\\\%08x.%03x", process_id, id);
 341     endpoint = generated_endpoint;
 342   }
 343
 344   r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
 345                               endpoint, NULL, NULL, NULL);
 346   if (r != RPC_S_OK)
 347     return r;
 348
 349   /* protseq=ncacn_np: named pipes */
 350   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 351   strcat(strcpy(pname, prefix), Connection->Endpoint);
 352   r = rpcrt4_conn_create_pipe(Connection, pname);
 353   I_RpcFree(pname);
 354
 355   EnterCriticalSection(&protseq->cs);
 356   Connection->Next = protseq->conn;
 357   protseq->conn = Connection;
 358   LeaveCriticalSection(&protseq->cs);
 359
 360   return r;
 361 }
 362
 363 static void rpcrt4_conn_np_handoff(RpcConnection_np *old_npc, RpcConnection_np *new_npc)
 364 {
 365   /* because of the way named pipes work, we'll transfer the connected pipe
 366    * to the child, then reopen the server binding to continue listening */
 367
 368   new_npc->pipe = old_npc->pipe;
 369   new_npc->listen_thread = old_npc->listen_thread;
 370   old_npc->pipe = 0;
 371   old_npc->listen_thread = 0;
 372   old_npc->listening = FALSE;
 373 }
 374
 375 static RPC_STATUS rpcrt4_ncacn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
 376 {
 377   RPC_STATUS status;
 378   LPSTR pname;
 379   static const char prefix[] = "\\\\.";
 380
 381   rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
 382
 383   pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
 384   strcat(strcpy(pname, prefix), old_conn->Endpoint);
 385   status = rpcrt4_conn_create_pipe(old_conn, pname);
 386   I_RpcFree(pname);
 387
 388   return status;
 389 }
 390
 391 static RPC_STATUS rpcrt4_ncalrpc_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
 392 {
 393   RPC_STATUS status;
 394   LPSTR pname;
 395   static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
 396
 397   TRACE("%s\n", old_conn->Endpoint);
 398
 399   rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
 400
 401   pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
 402   strcat(strcpy(pname, prefix), old_conn->Endpoint);
 403   status = rpcrt4_conn_create_pipe(old_conn, pname);
 404   I_RpcFree(pname);
 405
 406   return status;
 407 }
 408
 409 static int rpcrt4_conn_np_read(RpcConnection *Connection,
 410                         void *buffer, unsigned int count)
 411 {
 412   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 413   char *buf = buffer;
 414   BOOL ret = TRUE;
 415   unsigned int bytes_left = count;
 416
 417   while (bytes_left)
 418   {
 419     DWORD bytes_read;
 420     ret = ReadFile(npc->pipe, buf, bytes_left, &bytes_read, NULL);
 421     if (!ret && GetLastError() == ERROR_MORE_DATA)
 422         ret = TRUE;
 423     if (!ret || !bytes_read)
 424         break;
 425     bytes_left -= bytes_read;
 426     buf += bytes_read;
 427   }
 428   return ret ? count : -1;
 429 }
 430
 431 static int rpcrt4_conn_np_write(RpcConnection *Connection,
 432                              const void *buffer, unsigned int count)
 433 {
 434   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 435   const char *buf = buffer;
 436   BOOL ret = TRUE;
 437   unsigned int bytes_left = count;
 438
 439   while (bytes_left)
 440   {
 441     DWORD bytes_written;
 442     ret = WriteFile(npc->pipe, buf, bytes_left, &bytes_written, NULL);
 443     if (!ret || !bytes_written)
 444         break;
 445     bytes_left -= bytes_written;
 446     buf += bytes_written;
 447   }
 448   return ret ? count : -1;
 449 }
 450
 451 static int rpcrt4_conn_np_close(RpcConnection *Connection)
 452 {
 453   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 454   if (npc->pipe) {
 455     FlushFileBuffers(npc->pipe);
 456     CloseHandle(npc->pipe);
 457     npc->pipe = 0;
 458   }
 459   if (npc->listen_thread) {
 460     CloseHandle(npc->listen_thread);
 461     npc->listen_thread = 0;
 462   }
 463   return 0;
 464 }
 465
 466 static void rpcrt4_conn_np_cancel_call(RpcConnection *Connection)
 467 {
 468     /* FIXME: implement when named pipe writes use overlapped I/O */
 469 }
 470
 471 static int rpcrt4_conn_np_wait_for_incoming_data(RpcConnection *Connection)
 472 {
 473     /* FIXME: implement when named pipe writes use overlapped I/O */
 474     return -1;
 475 }
 476
 477 static size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
 478                                                const char *networkaddr,
 479                                                const char *endpoint)
 480 {
 481     twr_empty_floor_t *smb_floor;
 482     twr_empty_floor_t *nb_floor;
 483     size_t size;
 484     size_t networkaddr_size;
 485     size_t endpoint_size;
 486
 487     TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
 488
 489     networkaddr_size = networkaddr ? strlen(networkaddr) + 1 : 1;
 490     endpoint_size = endpoint ? strlen(endpoint) + 1 : 1;
 491     size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
 492
 493     if (!tower_data)
 494         return size;
 495
 496     smb_floor = (twr_empty_floor_t *)tower_data;
 497
 498     tower_data += sizeof(*smb_floor);
 499
 500     smb_floor->count_lhs = sizeof(smb_floor->protid);
 501     smb_floor->protid = EPM_PROTOCOL_SMB;
 502     smb_floor->count_rhs = endpoint_size;
 503
 504     if (endpoint)
 505         memcpy(tower_data, endpoint, endpoint_size);
 506     else
 507         tower_data[0] = 0;
 508     tower_data += endpoint_size;
 509
 510     nb_floor = (twr_empty_floor_t *)tower_data;
 511
 512     tower_data += sizeof(*nb_floor);
 513
 514     nb_floor->count_lhs = sizeof(nb_floor->protid);
 515     nb_floor->protid = EPM_PROTOCOL_NETBIOS;
 516     nb_floor->count_rhs = networkaddr_size;
 517
 518     if (networkaddr)
 519         memcpy(tower_data, networkaddr, networkaddr_size);
 520     else
 521         tower_data[0] = 0;
 522
 523     return size;
 524 }
 525
 526 static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
 527                                                      size_t tower_size,
 528                                                      char **networkaddr,
 529                                                      char **endpoint)
 530 {
 531     const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
 532     const twr_empty_floor_t *nb_floor;
 533
 534     TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
 535
 536     if (tower_size < sizeof(*smb_floor))
 537         return EPT_S_NOT_REGISTERED;
 538
 539     tower_data += sizeof(*smb_floor);
 540     tower_size -= sizeof(*smb_floor);
 541
 542     if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
 543         (smb_floor->protid != EPM_PROTOCOL_SMB) ||
 544         (smb_floor->count_rhs > tower_size) ||
 545         (tower_data[smb_floor->count_rhs - 1] != '\0'))
 546         return EPT_S_NOT_REGISTERED;
 547
 548     if (endpoint)
 549     {
 550         *endpoint = I_RpcAllocate(smb_floor->count_rhs);
 551         if (!*endpoint)
 552             return RPC_S_OUT_OF_RESOURCES;
 553         memcpy(*endpoint, tower_data, smb_floor->count_rhs);
 554     }
 555     tower_data += smb_floor->count_rhs;
 556     tower_size -= smb_floor->count_rhs;
 557
 558     if (tower_size < sizeof(*nb_floor))
 559         return EPT_S_NOT_REGISTERED;
 560
 561     nb_floor = (const twr_empty_floor_t *)tower_data;
 562
 563     tower_data += sizeof(*nb_floor);
 564     tower_size -= sizeof(*nb_floor);
 565
 566     if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
 567         (nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
 568         (nb_floor->count_rhs > tower_size) ||
 569         (tower_data[nb_floor->count_rhs - 1] != '\0'))
 570         return EPT_S_NOT_REGISTERED;
 571
 572     if (networkaddr)
 573     {
 574         *networkaddr = I_RpcAllocate(nb_floor->count_rhs);
 575         if (!*networkaddr)
 576         {
 577             if (endpoint)
 578             {
 579                 I_RpcFree(*endpoint);
 580                 *endpoint = NULL;
 581             }
 582             return RPC_S_OUT_OF_RESOURCES;
 583         }
 584         memcpy(*networkaddr, tower_data, nb_floor->count_rhs);
 585     }
 586
 587     return RPC_S_OK;
 588 }
 589
 590 static RPC_STATUS rpcrt4_conn_np_impersonate_client(RpcConnection *conn)
 591 {
 592     RpcConnection_np *npc = (RpcConnection_np *)conn;
 593     BOOL ret;
 594
 595     TRACE("(%p)\n", conn);
 596
 597     if (conn->AuthInfo && SecIsValidHandle(&conn->ctx))
 598         return RPCRT4_default_impersonate_client(conn);
 599
 600     ret = ImpersonateNamedPipeClient(npc->pipe);
 601     if (!ret)
 602     {
 603         DWORD error = GetLastError();
 604         WARN("ImpersonateNamedPipeClient failed with error %u\n", error);
 605         switch (error)
 606         {
 607         case ERROR_CANNOT_IMPERSONATE:
 608             return RPC_S_NO_CONTEXT_AVAILABLE;
 609         }
 610     }
 611     return RPC_S_OK;
 612 }
 613
 614 static RPC_STATUS rpcrt4_conn_np_revert_to_self(RpcConnection *conn)
 615 {
 616     BOOL ret;
 617
 618     TRACE("(%p)\n", conn);
 619
 620     if (conn->AuthInfo && SecIsValidHandle(&conn->ctx))
 621         return RPCRT4_default_revert_to_self(conn);
 622
 623     ret = RevertToSelf();
 624     if (!ret)
 625     {
 626         WARN("RevertToSelf failed with error %u\n", GetLastError());
 627         return RPC_S_NO_CONTEXT_AVAILABLE;
 628     }
 629     return RPC_S_OK;
 630 }
 631
 632 typedef struct _RpcServerProtseq_np
 633 {
 634     RpcServerProtseq common;
 635     HANDLE mgr_event;
 636 } RpcServerProtseq_np;
 637
 638 static RpcServerProtseq *rpcrt4_protseq_np_alloc(void)
 639 {
 640     RpcServerProtseq_np *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
 641     if (ps)
 642         ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
 643     return &ps->common;
 644 }
 645
 646 static void rpcrt4_protseq_np_signal_state_changed(RpcServerProtseq *protseq)
 647 {
 648     RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
 649     SetEvent(npps->mgr_event);
 650 }
 651
 652 static void *rpcrt4_protseq_np_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
 653 {
 654     HANDLE *objs = prev_array;
 655     RpcConnection_np *conn;
 656     RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
 657
 658     EnterCriticalSection(&protseq->cs);
 659
 660     /* open and count connections */
 661     *count = 1;
 662     conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
 663     while (conn) {
 664         rpcrt4_conn_listen_pipe(conn);
 665         if (conn->listen_thread)
 666             (*count)++;
 667         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
 668     }
 669
 670     /* make array of connections */
 671     if (objs)
 672         objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
 673     else
 674         objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
 675     if (!objs)
 676     {
 677         ERR("couldn't allocate objs\n");
 678         LeaveCriticalSection(&protseq->cs);
 679         return NULL;
 680     }
 681
 682     objs[0] = npps->mgr_event;
 683     *count = 1;
 684     conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
 685     while (conn) {
 686         if ((objs[*count] = conn->listen_thread))
 687             (*count)++;
 688         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
 689     }
 690     LeaveCriticalSection(&protseq->cs);
 691     return objs;
 692 }
 693
 694 static void rpcrt4_protseq_np_free_wait_array(RpcServerProtseq *protseq, void *array)
 695 {
 696     HeapFree(GetProcessHeap(), 0, array);
 697 }
 698
 699 static int rpcrt4_protseq_np_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
 700 {
 701     HANDLE b_handle;
 702     HANDLE *objs = wait_array;
 703     DWORD res;
 704     RpcConnection *cconn;
 705     RpcConnection_np *conn;
 706
 707     if (!objs)
 708         return -1;
 709
 710     do
 711     {
 712         /* an alertable wait isn't strictly necessary, but due to our
 713          * overlapped I/O implementation in Wine we need to free some memory
 714          * by the file user APC being called, even if no completion routine was
 715          * specified at the time of starting the async operation */
 716         res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
 717     } while (res == WAIT_IO_COMPLETION);
 718
 719     if (res == WAIT_OBJECT_0)
 720         return 0;
 721     else if (res == WAIT_FAILED)
 722     {
 723         ERR("wait failed with error %d\n", GetLastError());
 724         return -1;
 725     }
 726     else
 727     {
 728         b_handle = objs[res - WAIT_OBJECT_0];
 729         /* find which connection got a RPC */
 730         EnterCriticalSection(&protseq->cs);
 731         conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
 732         while (conn) {
 733             if (b_handle == conn->listen_thread) break;
 734             conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
 735         }
 736         cconn = NULL;
 737         if (conn)
 738         {
 739             DWORD exit_code;
 740             if (GetExitCodeThread(conn->listen_thread, &exit_code) && exit_code == RPC_S_OK)
 741                 RPCRT4_SpawnConnection(&cconn, &conn->common);
 742             CloseHandle(conn->listen_thread);
 743             conn->listen_thread = 0;
 744         }
 745         else
 746             ERR("failed to locate connection for handle %p\n", b_handle);
 747         LeaveCriticalSection(&protseq->cs);
 748         if (cconn)
 749         {
 750             RPCRT4_new_client(cconn);
 751             return 1;
 752         }
 753         else return -1;
 754     }
 755 }
 756
 757 static size_t rpcrt4_ncalrpc_get_top_of_tower(unsigned char *tower_data,
 758                                               const char *networkaddr,
 759                                               const char *endpoint)
 760 {
 761     twr_empty_floor_t *pipe_floor;
 762     size_t size;
 763     size_t endpoint_size;
 764
 765     TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
 766
 767     endpoint_size = strlen(endpoint) + 1;
 768     size = sizeof(*pipe_floor) + endpoint_size;
 769
 770     if (!tower_data)
 771         return size;
 772
 773     pipe_floor = (twr_empty_floor_t *)tower_data;
 774
 775     tower_data += sizeof(*pipe_floor);
 776
 777     pipe_floor->count_lhs = sizeof(pipe_floor->protid);
 778     pipe_floor->protid = EPM_PROTOCOL_PIPE;
 779     pipe_floor->count_rhs = endpoint_size;
 780
 781     memcpy(tower_data, endpoint, endpoint_size);
 782
 783     return size;
 784 }
 785
 786 static RPC_STATUS rpcrt4_ncalrpc_parse_top_of_tower(const unsigned char *tower_data,
 787                                                     size_t tower_size,
 788                                                     char **networkaddr,
 789                                                     char **endpoint)
 790 {
 791     const twr_empty_floor_t *pipe_floor = (const twr_empty_floor_t *)tower_data;
 792
 793     TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
 794
 795     if (tower_size < sizeof(*pipe_floor))
 796         return EPT_S_NOT_REGISTERED;
 797
 798     tower_data += sizeof(*pipe_floor);
 799     tower_size -= sizeof(*pipe_floor);
 800
 801     if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
 802         (pipe_floor->protid != EPM_PROTOCOL_PIPE) ||
 803         (pipe_floor->count_rhs > tower_size) ||
 804         (tower_data[pipe_floor->count_rhs - 1] != '\0'))
 805         return EPT_S_NOT_REGISTERED;
 806
 807     if (networkaddr)
 808         *networkaddr = NULL;
 809
 810     if (endpoint)
 811     {
 812         *endpoint = I_RpcAllocate(pipe_floor->count_rhs);
 813         if (!*endpoint)
 814             return RPC_S_OUT_OF_RESOURCES;
 815         memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
 816     }
 817
 818     return RPC_S_OK;
 819 }
 820
 821 static BOOL rpcrt4_ncalrpc_is_authorized(RpcConnection *conn)
 822 {
 823     return FALSE;
 824 }
 825
 826 static RPC_STATUS rpcrt4_ncalrpc_authorize(RpcConnection *conn, BOOL first_time,
 827                                            unsigned char *in_buffer,
 828                                            unsigned int in_size,
 829                                            unsigned char *out_buffer,
 830                                            unsigned int *out_size)
 831 {
 832     /* since this protocol is local to the machine there is no need to
 833      * authenticate the caller */
 834     *out_size = 0;
 835     return RPC_S_OK;
 836 }
 837
 838 static RPC_STATUS rpcrt4_ncalrpc_secure_packet(RpcConnection *conn,
 839     enum secure_packet_direction dir,
 840     RpcPktHdr *hdr, unsigned int hdr_size,
 841     unsigned char *stub_data, unsigned int stub_data_size,
 842     RpcAuthVerifier *auth_hdr,
 843     unsigned char *auth_value, unsigned int auth_value_size)
 844 {
 845     /* since this protocol is local to the machine there is no need to secure
 846      * the packet */
 847     return RPC_S_OK;
 848 }
 849
 850 static RPC_STATUS rpcrt4_ncalrpc_inquire_auth_client(
 851     RpcConnection *conn, RPC_AUTHZ_HANDLE *privs, RPC_WSTR *server_princ_name,
 852     ULONG *authn_level, ULONG *authn_svc, ULONG *authz_svc, ULONG flags)
 853 {
 854     TRACE("(%p, %p, %p, %p, %p, %p, 0x%x)\n", conn, privs,
 855           server_princ_name, authn_level, authn_svc, authz_svc, flags);
 856
 857     if (privs)
 858     {
 859         FIXME("privs not implemented\n");
 860         *privs = NULL;
 861     }
 862     if (server_princ_name)
 863     {
 864         FIXME("server_princ_name not implemented\n");
 865         *server_princ_name = NULL;
 866     }
 867     if (authn_level) *authn_level = RPC_C_AUTHN_LEVEL_PKT_PRIVACY;
 868     if (authn_svc) *authn_svc = RPC_C_AUTHN_WINNT;
 869     if (authz_svc)
 870     {
 871         FIXME("authorization service not implemented\n");
 872         *authz_svc = RPC_C_AUTHZ_NONE;
 873     }
 874     if (flags)
 875         FIXME("flags 0x%x not implemented\n", flags);
 876
 877     return RPC_S_OK;
 878 }
 879
 880 /**** ncacn_ip_tcp support ****/
 881
 882 static size_t rpcrt4_ip_tcp_get_top_of_tower(unsigned char *tower_data,
 883                                              const char *networkaddr,
 884                                              unsigned char tcp_protid,
 885                                              const char *endpoint)
 886 {
 887     twr_tcp_floor_t *tcp_floor;
 888     twr_ipv4_floor_t *ipv4_floor;
 889     struct addrinfo *ai;
 890     struct addrinfo hints;
 891     int ret;
 892     size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
 893
 894     TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
 895
 896     if (!tower_data)
 897         return size;
 898
 899     tcp_floor = (twr_tcp_floor_t *)tower_data;
 900     tower_data += sizeof(*tcp_floor);
 901
 902     ipv4_floor = (twr_ipv4_floor_t *)tower_data;
 903
 904     tcp_floor->count_lhs = sizeof(tcp_floor->protid);
 905     tcp_floor->protid = tcp_protid;
 906     tcp_floor->count_rhs = sizeof(tcp_floor->port);
 907
 908     ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
 909     ipv4_floor->protid = EPM_PROTOCOL_IP;
 910     ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
 911
 912     hints.ai_flags          = AI_NUMERICHOST;
 913     /* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
 914     hints.ai_family         = PF_INET;
 915     hints.ai_socktype       = SOCK_STREAM;
 916     hints.ai_protocol       = IPPROTO_TCP;
 917     hints.ai_addrlen        = 0;
 918     hints.ai_addr           = NULL;
 919     hints.ai_canonname      = NULL;
 920     hints.ai_next           = NULL;
 921
 922     ret = getaddrinfo(networkaddr, endpoint, &hints, &ai);
 923     if (ret)
 924     {
 925         ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
 926         if (ret)
 927         {
 928             ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
 929             return 0;
 930         }
 931     }
 932
 933     if (ai->ai_family == PF_INET)
 934     {
 935         const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
 936         tcp_floor->port = sin->sin_port;
 937         ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
 938     }
 939     else
 940     {
 941         ERR("unexpected protocol family %d\n", ai->ai_family);
 942         return 0;
 943     }
 944
 945     freeaddrinfo(ai);
 946
 947     return size;
 948 }
 949
 950 static RPC_STATUS rpcrt4_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
 951                                                    size_t tower_size,
 952                                                    char **networkaddr,
 953                                                    unsigned char tcp_protid,
 954                                                    char **endpoint)
 955 {
 956     const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
 957     const twr_ipv4_floor_t *ipv4_floor;
 958     struct in_addr in_addr;
 959
 960     TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
 961
 962     if (tower_size < sizeof(*tcp_floor))
 963         return EPT_S_NOT_REGISTERED;
 964
 965     tower_data += sizeof(*tcp_floor);
 966     tower_size -= sizeof(*tcp_floor);
 967
 968     if (tower_size < sizeof(*ipv4_floor))
 969         return EPT_S_NOT_REGISTERED;
 970
 971     ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
 972
 973     if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
 974         (tcp_floor->protid != tcp_protid) ||
 975         (tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
 976         (ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
 977         (ipv4_floor->protid != EPM_PROTOCOL_IP) ||
 978         (ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
 979         return EPT_S_NOT_REGISTERED;
 980
 981     if (endpoint)
 982     {
 983         *endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
 984         if (!*endpoint)
 985             return RPC_S_OUT_OF_RESOURCES;
 986         sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
 987     }
 988
 989     if (networkaddr)
 990     {
 991         *networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
 992         if (!*networkaddr)
 993         {
 994             if (endpoint)
 995             {
 996                 I_RpcFree(*endpoint);
 997                 *endpoint = NULL;
 998             }
 999             return RPC_S_OUT_OF_RESOURCES;
1000         }
1001         in_addr.s_addr = ipv4_floor->ipv4addr;
1002         if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
1003         {
1004             ERR("inet_ntop: %s\n", strerror(errno));
1005             I_RpcFree(*networkaddr);
1006             *networkaddr = NULL;
1007             if (endpoint)
1008             {
1009                 I_RpcFree(*endpoint);
1010                 *endpoint = NULL;
1011             }
1012             return EPT_S_NOT_REGISTERED;
1013         }
1014     }
1015
1016     return RPC_S_OK;
1017 }
1018
1019 typedef struct _RpcConnection_tcp
1020 {
1021   RpcConnection common;
1022   int sock;
1023 #ifdef HAVE_SOCKETPAIR
1024   int cancel_fds[2];
1025 #else
1026   HANDLE sock_event;
1027   HANDLE cancel_event;
1028 #endif
1029 } RpcConnection_tcp;
1030
1031 #ifdef HAVE_SOCKETPAIR
1032
1033 static BOOL rpcrt4_sock_wait_init(RpcConnection_tcp *tcpc)
1034 {
1035   if (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0)
1036   {
1037     ERR("socketpair() failed: %s\n", strerror(errno));
1038     return FALSE;
1039   }
1040   return TRUE;
1041 }
1042
1043 static BOOL rpcrt4_sock_wait_for_recv(RpcConnection_tcp *tcpc)
1044 {
1045   struct pollfd pfds[2];
1046   pfds[0].fd = tcpc->sock;
1047   pfds[0].events = POLLIN;
1048   pfds[1].fd = tcpc->cancel_fds[0];
1049   pfds[1].events = POLLIN;
1050   if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1051   {
1052     ERR("poll() failed: %s\n", strerror(errno));
1053     return FALSE;
1054   }
1055   if (pfds[1].revents & POLLIN) /* canceled */
1056   {
1057     char dummy;
1058     read(pfds[1].fd, &dummy, sizeof(dummy));
1059     return FALSE;
1060   }
1061   return TRUE;
1062 }
1063
1064 static BOOL rpcrt4_sock_wait_for_send(RpcConnection_tcp *tcpc)
1065 {
1066   struct pollfd pfd;
1067   pfd.fd = tcpc->sock;
1068   pfd.events = POLLOUT;
1069   if (poll(&pfd, 1, -1 /* infinite */) == -1 && errno != EINTR)
1070   {
1071     ERR("poll() failed: %s\n", strerror(errno));
1072     return FALSE;
1073   }
1074   return TRUE;
1075 }
1076
1077 static void rpcrt4_sock_wait_cancel(RpcConnection_tcp *tcpc)
1078 {
1079   char dummy = 1;
1080
1081   write(tcpc->cancel_fds[1], &dummy, 1);
1082 }
1083
1084 static void rpcrt4_sock_wait_destroy(RpcConnection_tcp *tcpc)
1085 {
1086   close(tcpc->cancel_fds[0]);
1087   close(tcpc->cancel_fds[1]);
1088 }
1089
1090 #else /* HAVE_SOCKETPAIR */
1091
1092 static BOOL rpcrt4_sock_wait_init(RpcConnection_tcp *tcpc)
1093 {
1094   static BOOL wsa_inited;
1095   if (!wsa_inited)
1096   {
1097     WSADATA wsadata;
1098     WSAStartup(MAKEWORD(2, 2), &wsadata);
1099     /* Note: WSAStartup can be called more than once so we don't bother with
1100      * making accesses to wsa_inited thread-safe */
1101     wsa_inited = TRUE;
1102   }
1103   tcpc->sock_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1104   tcpc->cancel_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1105   if (!tcpc->sock_event || !tcpc->cancel_event)
1106   {
1107     ERR("event creation failed\n");
1108     if (tcpc->sock_event) CloseHandle(tcpc->sock_event);
1109     return FALSE;
1110   }
1111   return TRUE;
1112 }
1113
1114 static BOOL rpcrt4_sock_wait_for_recv(RpcConnection_tcp *tcpc)
1115 {
1116   HANDLE wait_handles[2];
1117   DWORD res;
1118   if (WSAEventSelect(tcpc->sock, tcpc->sock_event, FD_READ | FD_CLOSE) == SOCKET_ERROR)
1119   {
1120     ERR("WSAEventSelect() failed with error %d\n", WSAGetLastError());
1121     return FALSE;
1122   }
1123   wait_handles[0] = tcpc->sock_event;
1124   wait_handles[1] = tcpc->cancel_event;
1125   res = WaitForMultipleObjects(2, wait_handles, FALSE, INFINITE);
1126   switch (res)
1127   {
1128   case WAIT_OBJECT_0:
1129     return TRUE;
1130   case WAIT_OBJECT_0 + 1:
1131     return FALSE;
1132   default:
1133     ERR("WaitForMultipleObjects() failed with error %d\n", GetLastError());
1134     return FALSE;
1135   }
1136 }
1137
1138 static BOOL rpcrt4_sock_wait_for_send(RpcConnection_tcp *tcpc)
1139 {
1140   DWORD res;
1141   if (WSAEventSelect(tcpc->sock, tcpc->sock_event, FD_WRITE | FD_CLOSE) == SOCKET_ERROR)
1142   {
1143     ERR("WSAEventSelect() failed with error %d\n", WSAGetLastError());
1144     return FALSE;
1145   }
1146   res = WaitForSingleObject(tcpc->sock_event, INFINITE);
1147   switch (res)
1148   {
1149   case WAIT_OBJECT_0:
1150     return TRUE;
1151   default:
1152     ERR("WaitForMultipleObjects() failed with error %d\n", GetLastError());
1153     return FALSE;
1154   }
1155 }
1156
1157 static void rpcrt4_sock_wait_cancel(RpcConnection_tcp *tcpc)
1158 {
1159   SetEvent(tcpc->cancel_event);
1160 }
1161
1162 static void rpcrt4_sock_wait_destroy(RpcConnection_tcp *tcpc)
1163 {
1164   CloseHandle(tcpc->sock_event);
1165   CloseHandle(tcpc->cancel_event);
1166 }
1167
1168 #endif
1169
1170 static RpcConnection *rpcrt4_conn_tcp_alloc(void)
1171 {
1172   RpcConnection_tcp *tcpc;
1173   tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
1174   if (tcpc == NULL)
1175     return NULL;
1176   tcpc->sock = -1;
1177   if (!rpcrt4_sock_wait_init(tcpc))
1178   {
1179     HeapFree(GetProcessHeap(), 0, tcpc);
1180     return NULL;
1181   }
1182   return &tcpc->common;
1183 }
1184
1185 static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection)
1186 {
1187   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1188   int sock;
1189   int ret;
1190   struct addrinfo *ai;
1191   struct addrinfo *ai_cur;
1192   struct addrinfo hints;
1193
1194   TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
1195
1196   if (tcpc->sock != -1)
1197     return RPC_S_OK;
1198
1199   hints.ai_flags          = 0;
1200   hints.ai_family         = PF_UNSPEC;
1201   hints.ai_socktype       = SOCK_STREAM;
1202   hints.ai_protocol       = IPPROTO_TCP;
1203   hints.ai_addrlen        = 0;
1204   hints.ai_addr           = NULL;
1205   hints.ai_canonname      = NULL;
1206   hints.ai_next           = NULL;
1207
1208   ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai);
1209   if (ret)
1210   {
1211     ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
1212       Connection->Endpoint, gai_strerror(ret));
1213     return RPC_S_SERVER_UNAVAILABLE;
1214   }
1215
1216   for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
1217   {
1218     int val;
1219     u_long nonblocking;
1220
1221     if (ai_cur->ai_family != AF_INET && ai_cur->ai_family != AF_INET6)
1222     {
1223       TRACE("skipping non-IP/IPv6 address family\n");
1224       continue;
1225     }
1226
1227     if (TRACE_ON(rpc))
1228     {
1229       char host[256];
1230       char service[256];
1231       getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
1232         host, sizeof(host), service, sizeof(service),
1233         NI_NUMERICHOST | NI_NUMERICSERV);
1234       TRACE("trying %s:%s\n", host, service);
1235     }
1236
1237     sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
1238     if (sock == -1)
1239     {
1240       WARN("socket() failed: %s\n", strerror(errno));
1241       continue;
1242     }
1243
1244     if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
1245     {
1246       WARN("connect() failed: %s\n", strerror(errno));
1247       closesocket(sock);
1248       continue;
1249     }
1250
1251     /* RPC depends on having minimal latency so disable the Nagle algorithm */
1252     val = 1;
1253     setsockopt(sock, SOL_TCP, TCP_NODELAY, (char *)&val, sizeof(val));
1254     nonblocking = 1;
1255     ioctlsocket(sock, FIONBIO, &nonblocking);
1256
1257     tcpc->sock = sock;
1258
1259     freeaddrinfo(ai);
1260     TRACE("connected\n");
1261     return RPC_S_OK;
1262   }
1263
1264   freeaddrinfo(ai);
1265   ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint);
1266   return RPC_S_SERVER_UNAVAILABLE;
1267 }
1268
1269 static RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, const char *endpoint)
1270 {
1271     RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
1272     int sock;
1273     int ret;
1274     struct addrinfo *ai;
1275     struct addrinfo *ai_cur;
1276     struct addrinfo hints;
1277     RpcConnection *first_connection = NULL;
1278
1279     TRACE("(%p, %s)\n", protseq, endpoint);
1280
1281     hints.ai_flags          = AI_PASSIVE /* for non-localhost addresses */;
1282     hints.ai_family         = PF_UNSPEC;
1283     hints.ai_socktype       = SOCK_STREAM;
1284     hints.ai_protocol       = IPPROTO_TCP;
1285     hints.ai_addrlen        = 0;
1286     hints.ai_addr           = NULL;
1287     hints.ai_canonname      = NULL;
1288     hints.ai_next           = NULL;
1289
1290     ret = getaddrinfo(NULL, endpoint ? endpoint : "0", &hints, &ai);
1291     if (ret)
1292     {
1293         ERR("getaddrinfo for port %s failed: %s\n", endpoint,
1294             gai_strerror(ret));
1295         if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
1296             return RPC_S_INVALID_ENDPOINT_FORMAT;
1297         return RPC_S_CANT_CREATE_ENDPOINT;
1298     }
1299
1300     for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
1301     {
1302         RpcConnection_tcp *tcpc;
1303         RPC_STATUS create_status;
1304         struct sockaddr_storage sa;
1305         socklen_t sa_len;
1306         char service[NI_MAXSERV];
1307         u_long nonblocking;
1308
1309         if (ai_cur->ai_family != AF_INET && ai_cur->ai_family != AF_INET6)
1310         {
1311             TRACE("skipping non-IP/IPv6 address family\n");
1312             continue;
1313         }
1314
1315         if (TRACE_ON(rpc))
1316         {
1317             char host[256];
1318             getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
1319                         host, sizeof(host), service, sizeof(service),
1320                         NI_NUMERICHOST | NI_NUMERICSERV);
1321             TRACE("trying %s:%s\n", host, service);
1322         }
1323
1324         sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
1325         if (sock == -1)
1326         {
1327             WARN("socket() failed: %s\n", strerror(errno));
1328             status = RPC_S_CANT_CREATE_ENDPOINT;
1329             continue;
1330         }
1331
1332         ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
1333         if (ret < 0)
1334         {
1335             WARN("bind failed: %s\n", strerror(errno));
1336             closesocket(sock);
1337             if (errno == EADDRINUSE)
1338               status = RPC_S_DUPLICATE_ENDPOINT;
1339             else
1340               status = RPC_S_CANT_CREATE_ENDPOINT;
1341             continue;
1342         }
1343
1344         sa_len = sizeof(sa);
1345         if (getsockname(sock, (struct sockaddr *)&sa, &sa_len))
1346         {
1347             WARN("getsockname() failed: %s\n", strerror(errno));
1348             status = RPC_S_CANT_CREATE_ENDPOINT;
1349             continue;
1350         }
1351
1352         ret = getnameinfo((struct sockaddr *)&sa, sa_len,
1353                           NULL, 0, service, sizeof(service),
1354                           NI_NUMERICSERV);
1355         if (ret)
1356         {
1357             WARN("getnameinfo failed: %s\n", gai_strerror(ret));
1358             status = RPC_S_CANT_CREATE_ENDPOINT;
1359             continue;
1360         }
1361
1362         create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
1363                                                 protseq->Protseq, NULL,
1364                                                 service, NULL, NULL, NULL);
1365         if (create_status != RPC_S_OK)
1366         {
1367             closesocket(sock);
1368             status = create_status;
1369             continue;
1370         }
1371
1372         tcpc->sock = sock;
1373         ret = listen(sock, protseq->MaxCalls);
1374         if (ret < 0)
1375         {
1376             WARN("listen failed: %s\n", strerror(errno));
1377             RPCRT4_ReleaseConnection(&tcpc->common);
1378             status = RPC_S_OUT_OF_RESOURCES;
1379             continue;
1380         }
1381         /* need a non-blocking socket, otherwise accept() has a potential
1382          * race-condition (poll() says it is readable, connection drops,
1383          * and accept() blocks until the next connection comes...)
1384          */
1385         nonblocking = 1;
1386         ret = ioctlsocket(sock, FIONBIO, &nonblocking);
1387         if (ret < 0)
1388         {
1389             WARN("couldn't make socket non-blocking, error %d\n", ret);
1390             RPCRT4_ReleaseConnection(&tcpc->common);
1391             status = RPC_S_OUT_OF_RESOURCES;
1392             continue;
1393         }
1394
1395         tcpc->common.Next = first_connection;
1396         first_connection = &tcpc->common;
1397
1398         /* since IPv4 and IPv6 share the same port space, we only need one
1399          * successful bind to listen for both */
1400         break;
1401     }
1402
1403     freeaddrinfo(ai);
1404
1405     /* if at least one connection was created for an endpoint then
1406      * return success */
1407     if (first_connection)
1408     {
1409         RpcConnection *conn;
1410
1411         /* find last element in list */
1412         for (conn = first_connection; conn->Next; conn = conn->Next)
1413             ;
1414
1415         EnterCriticalSection(&protseq->cs);
1416         conn->Next = protseq->conn;
1417         protseq->conn = first_connection;
1418         LeaveCriticalSection(&protseq->cs);
1419
1420         TRACE("listening on %s\n", endpoint);
1421         return RPC_S_OK;
1422     }
1423
1424     ERR("couldn't listen on port %s\n", endpoint);
1425     return status;
1426 }
1427
1428 static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
1429 {
1430   int ret;
1431   struct sockaddr_in address;
1432   socklen_t addrsize;
1433   RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
1434   RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
1435   u_long nonblocking;
1436
1437   addrsize = sizeof(address);
1438   ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
1439   if (ret < 0)
1440   {
1441     ERR("Failed to accept a TCP connection: error %d\n", ret);
1442     return RPC_S_OUT_OF_RESOURCES;
1443   }
1444   nonblocking = 1;
1445   ioctlsocket(ret, FIONBIO, &nonblocking);
1446   client->sock = ret;
1447   TRACE("Accepted a new TCP connection\n");
1448   return RPC_S_OK;
1449 }
1450
1451 static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
1452                                 void *buffer, unsigned int count)
1453 {
1454   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1455   int bytes_read = 0;
1456   while (bytes_read != count)
1457   {
1458     int r = recv(tcpc->sock, (char *)buffer + bytes_read, count - bytes_read, 0);
1459     if (!r)
1460       return -1;
1461     else if (r > 0)
1462       bytes_read += r;
1463     else if (errno != EAGAIN)
1464     {
1465       WARN("recv() failed: %s\n", strerror(errno));
1466       return -1;
1467     }
1468     else
1469     {
1470       if (!rpcrt4_sock_wait_for_recv(tcpc))
1471         return -1;
1472     }
1473   }
1474   TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_read);
1475   return bytes_read;
1476 }
1477
1478 static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
1479                                  const void *buffer, unsigned int count)
1480 {
1481   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1482   int bytes_written = 0;
1483   while (bytes_written != count)
1484   {
1485     int r = send(tcpc->sock, (const char *)buffer + bytes_written, count - bytes_written, 0);
1486     if (r >= 0)
1487       bytes_written += r;
1488     else if (errno != EAGAIN)
1489       return -1;
1490     else
1491     {
1492       if (!rpcrt4_sock_wait_for_send(tcpc))
1493         return -1;
1494     }
1495   }
1496   TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_written);
1497   return bytes_written;
1498 }
1499
1500 static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
1501 {
1502   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1503
1504   TRACE("%d\n", tcpc->sock);
1505
1506   if (tcpc->sock != -1)
1507     closesocket(tcpc->sock);
1508   tcpc->sock = -1;
1509   rpcrt4_sock_wait_destroy(tcpc);
1510   return 0;
1511 }
1512
1513 static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection)
1514 {
1515     RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1516     TRACE("%p\n", Connection);
1517     rpcrt4_sock_wait_cancel(tcpc);
1518 }
1519
1520 static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection)
1521 {
1522     RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1523
1524     TRACE("%p\n", Connection);
1525
1526     if (!rpcrt4_sock_wait_for_recv(tcpc))
1527         return -1;
1528     return 0;
1529 }
1530
1531 static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
1532                                                    const char *networkaddr,
1533                                                    const char *endpoint)
1534 {
1535     return rpcrt4_ip_tcp_get_top_of_tower(tower_data, networkaddr,
1536                                           EPM_PROTOCOL_TCP, endpoint);
1537 }
1538
1539 #ifdef HAVE_SOCKETPAIR
1540
1541 typedef struct _RpcServerProtseq_sock
1542 {
1543     RpcServerProtseq common;
1544     int mgr_event_rcv;
1545     int mgr_event_snd;
1546 } RpcServerProtseq_sock;
1547
1548 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1549 {
1550     RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1551     if (ps)
1552     {
1553         int fds[2];
1554         if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
1555         {
1556             fcntl(fds[0], F_SETFL, O_NONBLOCK);
1557             fcntl(fds[1], F_SETFL, O_NONBLOCK);
1558             ps->mgr_event_rcv = fds[0];
1559             ps->mgr_event_snd = fds[1];
1560         }
1561         else
1562         {
1563             ERR("socketpair failed with error %s\n", strerror(errno));
1564             HeapFree(GetProcessHeap(), 0, ps);
1565             return NULL;
1566         }
1567     }
1568     return &ps->common;
1569 }
1570
1571 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1572 {
1573     RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1574     char dummy = 1;
1575     write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
1576 }
1577
1578 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1579 {
1580     struct pollfd *poll_info = prev_array;
1581     RpcConnection_tcp *conn;
1582     RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1583
1584     EnterCriticalSection(&protseq->cs);
1585
1586     /* open and count connections */
1587     *count = 1;
1588     conn = (RpcConnection_tcp *)protseq->conn;
1589     while (conn) {
1590         if (conn->sock != -1)
1591             (*count)++;
1592         conn = (RpcConnection_tcp *)conn->common.Next;
1593     }
1594
1595     /* make array of connections */
1596     if (poll_info)
1597         poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
1598     else
1599         poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
1600     if (!poll_info)
1601     {
1602         ERR("couldn't allocate poll_info\n");
1603         LeaveCriticalSection(&protseq->cs);
1604         return NULL;
1605     }
1606
1607     poll_info[0].fd = sockps->mgr_event_rcv;
1608     poll_info[0].events = POLLIN;
1609     *count = 1;
1610     conn =  CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1611     while (conn) {
1612         if (conn->sock != -1)
1613         {
1614             poll_info[*count].fd = conn->sock;
1615             poll_info[*count].events = POLLIN;
1616             (*count)++;
1617         }
1618         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1619     }
1620     LeaveCriticalSection(&protseq->cs);
1621     return poll_info;
1622 }
1623
1624 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1625 {
1626     HeapFree(GetProcessHeap(), 0, array);
1627 }
1628
1629 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1630 {
1631     struct pollfd *poll_info = wait_array;
1632     int ret;
1633     unsigned int i;
1634     RpcConnection *cconn;
1635     RpcConnection_tcp *conn;
1636
1637     if (!poll_info)
1638         return -1;
1639
1640     ret = poll(poll_info, count, -1);
1641     if (ret < 0)
1642     {
1643         ERR("poll failed with error %d\n", ret);
1644         return -1;
1645     }
1646
1647     for (i = 0; i < count; i++)
1648         if (poll_info[i].revents & POLLIN)
1649         {
1650             /* RPC server event */
1651             if (i == 0)
1652             {
1653                 char dummy;
1654                 read(poll_info[0].fd, &dummy, sizeof(dummy));
1655                 return 0;
1656             }
1657
1658             /* find which connection got a RPC */
1659             EnterCriticalSection(&protseq->cs);
1660             conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1661             while (conn) {
1662                 if (poll_info[i].fd == conn->sock) break;
1663                 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1664             }
1665             cconn = NULL;
1666             if (conn)
1667                 RPCRT4_SpawnConnection(&cconn, &conn->common);
1668             else
1669                 ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
1670             LeaveCriticalSection(&protseq->cs);
1671             if (cconn)
1672                 RPCRT4_new_client(cconn);
1673             else
1674                 return -1;
1675         }
1676
1677     return 1;
1678 }
1679
1680 #else /* HAVE_SOCKETPAIR */
1681
1682 typedef struct _RpcServerProtseq_sock
1683 {
1684     RpcServerProtseq common;
1685     HANDLE mgr_event;
1686 } RpcServerProtseq_sock;
1687
1688 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1689 {
1690     RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1691     if (ps)
1692     {
1693         static BOOL wsa_inited;
1694         if (!wsa_inited)
1695         {
1696             WSADATA wsadata;
1697             WSAStartup(MAKEWORD(2, 2), &wsadata);
1698             /* Note: WSAStartup can be called more than once so we don't bother with
1699              * making accesses to wsa_inited thread-safe */
1700             wsa_inited = TRUE;
1701         }
1702         ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1703     }
1704     return &ps->common;
1705 }
1706
1707 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1708 {
1709     RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1710     SetEvent(sockps->mgr_event);
1711 }
1712
1713 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1714 {
1715     HANDLE *objs = prev_array;
1716     RpcConnection_tcp *conn;
1717     RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1718
1719     EnterCriticalSection(&protseq->cs);
1720
1721     /* open and count connections */
1722     *count = 1;
1723     conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1724     while (conn)
1725     {
1726         if (conn->sock != -1)
1727             (*count)++;
1728         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1729     }
1730
1731     /* make array of connections */
1732     if (objs)
1733         objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
1734     else
1735         objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
1736     if (!objs)
1737     {
1738         ERR("couldn't allocate objs\n");
1739         LeaveCriticalSection(&protseq->cs);
1740         return NULL;
1741     }
1742
1743     objs[0] = sockps->mgr_event;
1744     *count = 1;
1745     conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1746     while (conn)
1747     {
1748         if (conn->sock != -1)
1749         {
1750             int res = WSAEventSelect(conn->sock, conn->sock_event, FD_ACCEPT);
1751             if (res == SOCKET_ERROR)
1752                 ERR("WSAEventSelect() failed with error %d\n", WSAGetLastError());
1753             else
1754             {
1755                 objs[*count] = conn->sock_event;
1756                 (*count)++;
1757             }
1758         }
1759         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1760     }
1761     LeaveCriticalSection(&protseq->cs);
1762     return objs;
1763 }
1764
1765 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1766 {
1767     HeapFree(GetProcessHeap(), 0, array);
1768 }
1769
1770 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1771 {
1772     HANDLE b_handle;
1773     HANDLE *objs = wait_array;
1774     DWORD res;
1775     RpcConnection *cconn;
1776     RpcConnection_tcp *conn;
1777
1778     if (!objs)
1779         return -1;
1780
1781     do
1782     {
1783         /* an alertable wait isn't strictly necessary, but due to our
1784          * overlapped I/O implementation in Wine we need to free some memory
1785          * by the file user APC being called, even if no completion routine was
1786          * specified at the time of starting the async operation */
1787         res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
1788     } while (res == WAIT_IO_COMPLETION);
1789
1790     if (res == WAIT_OBJECT_0)
1791         return 0;
1792     else if (res == WAIT_FAILED)
1793     {
1794         ERR("wait failed with error %d\n", GetLastError());
1795         return -1;
1796     }
1797     else
1798     {
1799         b_handle = objs[res - WAIT_OBJECT_0];
1800         /* find which connection got a RPC */
1801         EnterCriticalSection(&protseq->cs);
1802         conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1803         while (conn)
1804         {
1805             if (b_handle == conn->sock_event) break;
1806             conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1807         }
1808         cconn = NULL;
1809         if (conn)
1810             RPCRT4_SpawnConnection(&cconn, &conn->common);
1811         else
1812             ERR("failed to locate connection for handle %p\n", b_handle);
1813         LeaveCriticalSection(&protseq->cs);
1814         if (cconn)
1815         {
1816             RPCRT4_new_client(cconn);
1817             return 1;
1818         }
1819         else return -1;
1820     }
1821 }
1822
1823 #endif  /* HAVE_SOCKETPAIR */
1824
1825 static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
1826                                                          size_t tower_size,
1827                                                          char **networkaddr,
1828                                                          char **endpoint)
1829 {
1830     return rpcrt4_ip_tcp_parse_top_of_tower(tower_data, tower_size,
1831                                             networkaddr, EPM_PROTOCOL_TCP,
1832                                             endpoint);
1833 }
1834
1835 /**** ncacn_http support ****/
1836
1837 /* 60 seconds is the period native uses */
1838 #define HTTP_IDLE_TIME 60000
1839
1840 /* reference counted to avoid a race between a cancelled call's connection
1841  * being destroyed and the asynchronous InternetReadFileEx call being
1842  * completed */
1843 typedef struct _RpcHttpAsyncData
1844 {
1845     LONG refs;
1846     HANDLE completion_event;
1847     INTERNET_BUFFERSA inet_buffers;
1848     void *destination_buffer; /* the address that inet_buffers.lpvBuffer will be
1849                                * copied into when the call completes */
1850     CRITICAL_SECTION cs;
1851 } RpcHttpAsyncData;
1852
1853 static ULONG RpcHttpAsyncData_AddRef(RpcHttpAsyncData *data)
1854 {
1855     return InterlockedIncrement(&data->refs);
1856 }
1857
1858 static ULONG RpcHttpAsyncData_Release(RpcHttpAsyncData *data)
1859 {
1860     ULONG refs = InterlockedDecrement(&data->refs);
1861     if (!refs)
1862     {
1863         TRACE("destroying async data %p\n", data);
1864         CloseHandle(data->completion_event);
1865         HeapFree(GetProcessHeap(), 0, data->inet_buffers.lpvBuffer);
1866         data->cs.DebugInfo->Spare[0] = 0;
1867         DeleteCriticalSection(&data->cs);
1868         HeapFree(GetProcessHeap(), 0, data);
1869     }
1870     return refs;
1871 }
1872
1873 static void prepare_async_request(RpcHttpAsyncData *async_data)
1874 {
1875     ResetEvent(async_data->completion_event);
1876     RpcHttpAsyncData_AddRef(async_data);
1877 }
1878
1879 typedef struct _RpcConnection_http
1880 {
1881     RpcConnection common;
1882     HINTERNET app_info;
1883     HINTERNET session;
1884     HINTERNET in_request;
1885     HINTERNET out_request;
1886     HANDLE timer_cancelled;
1887     HANDLE cancel_event;
1888     DWORD last_sent_time;
1889     ULONG bytes_received;
1890     ULONG flow_control_mark; /* send a control packet to the server when this many bytes received */
1891     ULONG flow_control_increment; /* number of bytes to increment flow_control_mark by */
1892     UUID connection_uuid;
1893     UUID in_pipe_uuid;
1894     UUID out_pipe_uuid;
1895     RpcHttpAsyncData *async_data;
1896 } RpcConnection_http;
1897
1898 static RpcConnection *rpcrt4_ncacn_http_alloc(void)
1899 {
1900     RpcConnection_http *httpc;
1901     httpc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*httpc));
1902     if (!httpc) return NULL;
1903     httpc->async_data = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcHttpAsyncData));
1904     if (!httpc->async_data)
1905     {
1906         HeapFree(GetProcessHeap(), 0, httpc);
1907         return NULL;
1908     }
1909     TRACE("async data = %p\n", httpc->async_data);
1910     httpc->cancel_event = CreateEventW(NULL, FALSE, FALSE, NULL);
1911     httpc->async_data->refs = 1;
1912     httpc->async_data->inet_buffers.dwStructSize = sizeof(INTERNET_BUFFERSA);
1913     httpc->async_data->inet_buffers.lpvBuffer = NULL;
1914     httpc->async_data->destination_buffer = NULL;
1915     InitializeCriticalSection(&httpc->async_data->cs);
1916     httpc->async_data->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": RpcHttpAsyncData.cs");
1917     return &httpc->common;
1918 }
1919
1920 typedef struct _HttpTimerThreadData
1921 {
1922     PVOID timer_param;
1923     DWORD *last_sent_time;
1924     HANDLE timer_cancelled;
1925 } HttpTimerThreadData;
1926
1927 static VOID rpcrt4_http_keep_connection_active_timer_proc(PVOID param, BOOLEAN dummy)
1928 {
1929     HINTERNET in_request = param;
1930     RpcPktHdr *idle_pkt;
1931
1932     idle_pkt = RPCRT4_BuildHttpHeader(NDR_LOCAL_DATA_REPRESENTATION, 0x0001,
1933                                       0, 0);
1934     if (idle_pkt)
1935     {
1936         DWORD bytes_written;
1937         InternetWriteFile(in_request, idle_pkt, idle_pkt->common.frag_len, &bytes_written);
1938         RPCRT4_FreeHeader(idle_pkt);
1939     }
1940 }
1941
1942 static inline DWORD rpcrt4_http_timer_calc_timeout(DWORD *last_sent_time)
1943 {
1944     DWORD cur_time = GetTickCount();
1945     DWORD cached_last_sent_time = *last_sent_time;
1946     return HTTP_IDLE_TIME - (cur_time - cached_last_sent_time > HTTP_IDLE_TIME ? 0 : cur_time - cached_last_sent_time);
1947 }
1948
1949 static DWORD CALLBACK rpcrt4_http_timer_thread(PVOID param)
1950 {
1951     HttpTimerThreadData *data_in = param;
1952     HttpTimerThreadData data;
1953     DWORD timeout;
1954
1955     data = *data_in;
1956     HeapFree(GetProcessHeap(), 0, data_in);
1957
1958     for (timeout = HTTP_IDLE_TIME;
1959          WaitForSingleObject(data.timer_cancelled, timeout) == WAIT_TIMEOUT;
1960          timeout = rpcrt4_http_timer_calc_timeout(data.last_sent_time))
1961     {
1962         /* are we too soon after last send? */
1963         if (GetTickCount() - HTTP_IDLE_TIME < *data.last_sent_time)
1964             continue;
1965         rpcrt4_http_keep_connection_active_timer_proc(data.timer_param, TRUE);
1966     }
1967
1968     CloseHandle(data.timer_cancelled);
1969     return 0;
1970 }
1971
1972 static VOID WINAPI rpcrt4_http_internet_callback(
1973      HINTERNET hInternet,
1974      DWORD_PTR dwContext,
1975      DWORD dwInternetStatus,
1976      LPVOID lpvStatusInformation,
1977      DWORD dwStatusInformationLength)
1978 {
1979     RpcHttpAsyncData *async_data = (RpcHttpAsyncData *)dwContext;
1980
1981     switch (dwInternetStatus)
1982     {
1983     case INTERNET_STATUS_REQUEST_COMPLETE:
1984         TRACE("INTERNET_STATUS_REQUEST_COMPLETED\n");
1985         if (async_data)
1986         {
1987             if (async_data->inet_buffers.lpvBuffer)
1988             {
1989                 EnterCriticalSection(&async_data->cs);
1990                 if (async_data->destination_buffer)
1991                 {
1992                     memcpy(async_data->destination_buffer,
1993                            async_data->inet_buffers.lpvBuffer,
1994                            async_data->inet_buffers.dwBufferLength);
1995                     async_data->destination_buffer = NULL;
1996                 }
1997                 LeaveCriticalSection(&async_data->cs);
1998             }
1999             HeapFree(GetProcessHeap(), 0, async_data->inet_buffers.lpvBuffer);
2000             async_data->inet_buffers.lpvBuffer = NULL;
2001             SetEvent(async_data->completion_event);
2002             RpcHttpAsyncData_Release(async_data);
2003         }
2004         break;
2005     }
2006 }
2007
2008 static RPC_STATUS rpcrt4_http_check_response(HINTERNET hor)
2009 {
2010     BOOL ret;
2011     DWORD status_code;
2012     DWORD size;
2013     DWORD index;
2014     WCHAR buf[32];
2015     WCHAR *status_text = buf;
2016     TRACE("\n");
2017
2018     index = 0;
2019     size = sizeof(status_code);
2020     ret = HttpQueryInfoW(hor, HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER, &status_code, &size, &index);
2021     if (!ret)
2022         return GetLastError();
2023     if (status_code < 400)
2024         return RPC_S_OK;
2025     index = 0;
2026     size = sizeof(buf);
2027     ret = HttpQueryInfoW(hor, HTTP_QUERY_STATUS_TEXT, status_text, &size, &index);
2028     if (!ret && GetLastError() == ERROR_INSUFFICIENT_BUFFER)
2029     {
2030         status_text = HeapAlloc(GetProcessHeap(), 0, size);
2031         ret = HttpQueryInfoW(hor, HTTP_QUERY_STATUS_TEXT, status_text, &size, &index);
2032     }
2033
2034     ERR("server returned: %d %s\n", status_code, ret ? debugstr_w(status_text) : "<status text unavailable>");
2035     if(status_text != buf) HeapFree(GetProcessHeap(), 0, status_text);
2036
2037     if (status_code == HTTP_STATUS_DENIED)
2038         return ERROR_ACCESS_DENIED;
2039     return RPC_S_SERVER_UNAVAILABLE;
2040 }
2041
2042 static RPC_STATUS rpcrt4_http_internet_connect(RpcConnection_http *httpc)
2043 {
2044     static const WCHAR wszUserAgent[] = {'M','S','R','P','C',0};
2045     LPWSTR proxy = NULL;
2046     LPWSTR user = NULL;
2047     LPWSTR password = NULL;
2048     LPWSTR servername = NULL;
2049     const WCHAR *option;
2050     INTERNET_PORT port = INTERNET_INVALID_PORT_NUMBER; /* use default port */
2051
2052     if (httpc->common.QOS &&
2053         (httpc->common.QOS->qos->AdditionalSecurityInfoType == RPC_C_AUTHN_INFO_TYPE_HTTP))
2054     {
2055         const RPC_HTTP_TRANSPORT_CREDENTIALS_W *http_cred = httpc->common.QOS->qos->u.HttpCredentials;
2056         if (http_cred->TransportCredentials)
2057         {
2058             WCHAR *p;
2059             const SEC_WINNT_AUTH_IDENTITY_W *cred = http_cred->TransportCredentials;
2060             ULONG len = cred->DomainLength + 1 + cred->UserLength;
2061             user = HeapAlloc(GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR));
2062             if (!user)
2063                 return RPC_S_OUT_OF_RESOURCES;
2064             p = user;
2065             if (cred->DomainLength)
2066             {
2067                 memcpy(p, cred->Domain, cred->DomainLength * sizeof(WCHAR));
2068                 p += cred->DomainLength;
2069                 *p = '\\';
2070                 p++;
2071             }
2072             memcpy(p, cred->User, cred->UserLength * sizeof(WCHAR));
2073             p[cred->UserLength] = 0;
2074
2075             password = RPCRT4_strndupW(cred->Password, cred->PasswordLength);
2076         }
2077     }
2078
2079     for (option = httpc->common.NetworkOptions; option;
2080          option = (strchrW(option, ',') ? strchrW(option, ',')+1 : NULL))
2081     {
2082         static const WCHAR wszRpcProxy[] = {'R','p','c','P','r','o','x','y','=',0};
2083         static const WCHAR wszHttpProxy[] = {'H','t','t','p','P','r','o','x','y','=',0};
2084
2085         if (!strncmpiW(option, wszRpcProxy, sizeof(wszRpcProxy)/sizeof(wszRpcProxy[0])-1))
2086         {
2087             const WCHAR *value_start = option + sizeof(wszRpcProxy)/sizeof(wszRpcProxy[0])-1;
2088             const WCHAR *value_end;
2089             const WCHAR *p;
2090
2091             value_end = strchrW(option, ',');
2092             if (!value_end)
2093                 value_end = value_start + strlenW(value_start);
2094             for (p = value_start; p < value_end; p++)
2095                 if (*p == ':')
2096                 {
2097                     port = atoiW(p+1);
2098                     value_end = p;
2099                     break;
2100                 }
2101             TRACE("RpcProxy value is %s\n", debugstr_wn(value_start, value_end-value_start));
2102             servername = RPCRT4_strndupW(value_start, value_end-value_start);
2103         }
2104         else if (!strncmpiW(option, wszHttpProxy, sizeof(wszHttpProxy)/sizeof(wszHttpProxy[0])-1))
2105         {
2106             const WCHAR *value_start = option + sizeof(wszHttpProxy)/sizeof(wszHttpProxy[0])-1;
2107             const WCHAR *value_end;
2108
2109             value_end = strchrW(option, ',');
2110             if (!value_end)
2111                 value_end = value_start + strlenW(value_start);
2112             TRACE("HttpProxy value is %s\n", debugstr_wn(value_start, value_end-value_start));
2113             proxy = RPCRT4_strndupW(value_start, value_end-value_start);
2114         }
2115         else
2116             FIXME("unhandled option %s\n", debugstr_w(option));
2117     }
2118
2119     httpc->app_info = InternetOpenW(wszUserAgent, proxy ? INTERNET_OPEN_TYPE_PROXY : INTERNET_OPEN_TYPE_PRECONFIG,
2120                                     NULL, NULL, INTERNET_FLAG_ASYNC);
2121     if (!httpc->app_info)
2122     {
2123         HeapFree(GetProcessHeap(), 0, password);
2124         HeapFree(GetProcessHeap(), 0, user);
2125         ERR("InternetOpenW failed with error %d\n", GetLastError());
2126         return RPC_S_SERVER_UNAVAILABLE;
2127     }
2128     InternetSetStatusCallbackW(httpc->app_info, rpcrt4_http_internet_callback);
2129
2130     /* if no RpcProxy option specified, set the HTTP server address to the
2131      * RPC server address */
2132     if (!servername)
2133     {
2134         servername = HeapAlloc(GetProcessHeap(), 0, (strlen(httpc->common.NetworkAddr) + 1)*sizeof(WCHAR));
2135         if (!servername)
2136         {
2137             HeapFree(GetProcessHeap(), 0, password);
2138             HeapFree(GetProcessHeap(), 0, user);
2139             return RPC_S_OUT_OF_RESOURCES;
2140         }
2141         MultiByteToWideChar(CP_ACP, 0, httpc->common.NetworkAddr, -1, servername, strlen(httpc->common.NetworkAddr) + 1);
2142     }
2143
2144     httpc->session = InternetConnectW(httpc->app_info, servername, port, user, password,
2145                                       INTERNET_SERVICE_HTTP, 0, 0);
2146
2147     HeapFree(GetProcessHeap(), 0, password);
2148     HeapFree(GetProcessHeap(), 0, user);
2149     HeapFree(GetProcessHeap(), 0, servername);
2150
2151     if (!httpc->session)
2152     {
2153         ERR("InternetConnectW failed with error %d\n", GetLastError());
2154         return RPC_S_SERVER_UNAVAILABLE;
2155     }
2156
2157     return RPC_S_OK;
2158 }
2159
2160 /* prepare the in pipe for use by RPC packets */
2161 static RPC_STATUS rpcrt4_http_prepare_in_pipe(HINTERNET in_request, RpcHttpAsyncData *async_data,
2162                                               const UUID *connection_uuid,
2163                                               const UUID *in_pipe_uuid,
2164                                               const UUID *association_uuid)
2165 {
2166     BYTE packet[44];
2167     BOOL ret;
2168     RPC_STATUS status;
2169     RpcPktHdr *hdr;
2170     INTERNET_BUFFERSW buffers_in;
2171     DWORD bytes_read, bytes_written;
2172
2173     /* prepare in pipe */
2174     prepare_async_request(async_data);
2175     ret = HttpSendRequestW(in_request, NULL, 0, NULL, 0);
2176     if (!ret)
2177     {
2178         if (GetLastError() == ERROR_IO_PENDING)
2179             WaitForSingleObject(async_data->completion_event, INFINITE);
2180         else
2181         {
2182             RpcHttpAsyncData_Release(async_data);
2183             ERR("HttpSendRequestW failed with error %d\n", GetLastError());
2184             return RPC_S_SERVER_UNAVAILABLE;
2185         }
2186     }
2187     status = rpcrt4_http_check_response(in_request);
2188     if (status != RPC_S_OK) return status;
2189
2190     InternetReadFile(in_request, packet, 20, &bytes_read);
2191     /* FIXME: do something with retrieved data */
2192
2193     memset(&buffers_in, 0, sizeof(buffers_in));
2194     buffers_in.dwStructSize = sizeof(buffers_in);
2195     /* FIXME: get this from the registry */
2196     buffers_in.dwBufferTotal = 1024 * 1024 * 1024; /* 1Gb */
2197     prepare_async_request(async_data);
2198     ret = HttpSendRequestExW(in_request, &buffers_in, NULL, 0, 0);
2199     if (!ret)
2200     {
2201         if (GetLastError() == ERROR_IO_PENDING)
2202             WaitForSingleObject(async_data->completion_event, INFINITE);
2203         else
2204         {
2205             RpcHttpAsyncData_Release(async_data);
2206             ERR("HttpSendRequestExW failed with error %d\n", GetLastError());
2207             return RPC_S_SERVER_UNAVAILABLE;
2208         }
2209     }
2210
2211     TRACE("sending HTTP connect header to server\n");
2212     hdr = RPCRT4_BuildHttpConnectHeader(0, FALSE, connection_uuid, in_pipe_uuid, association_uuid);
2213     if (!hdr) return RPC_S_OUT_OF_RESOURCES;
2214     ret = InternetWriteFile(in_request, hdr, hdr->common.frag_len, &bytes_written);
2215     RPCRT4_FreeHeader(hdr);
2216     if (!ret)
2217     {
2218         ERR("InternetWriteFile failed with error %d\n", GetLastError());
2219         return RPC_S_SERVER_UNAVAILABLE;
2220     }
2221
2222     return RPC_S_OK;
2223 }
2224
2225 static RPC_STATUS rpcrt4_http_read_http_packet(HINTERNET request, RpcPktHdr *hdr, BYTE **data)
2226 {
2227     BOOL ret;
2228     DWORD bytes_read;
2229     unsigned short data_len;
2230
2231     ret = InternetReadFile(request, hdr, sizeof(hdr->common), &bytes_read);
2232     if (!ret)
2233         return RPC_S_SERVER_UNAVAILABLE;
2234     if (hdr->common.ptype != PKT_HTTP || hdr->common.frag_len < sizeof(hdr->http))
2235     {
2236         ERR("wrong packet type received %d or wrong frag_len %d\n",
2237             hdr->common.ptype, hdr->common.frag_len);
2238         return RPC_S_PROTOCOL_ERROR;
2239     }
2240
2241     ret = InternetReadFile(request, &hdr->common + 1, sizeof(hdr->http) - sizeof(hdr->common), &bytes_read);
2242     if (!ret)
2243         return RPC_S_SERVER_UNAVAILABLE;
2244
2245     data_len = hdr->common.frag_len - sizeof(hdr->http);
2246     if (data_len)
2247     {
2248         *data = HeapAlloc(GetProcessHeap(), 0, data_len);
2249         if (!*data)
2250             return RPC_S_OUT_OF_RESOURCES;
2251         ret = InternetReadFile(request, *data, data_len, &bytes_read);
2252         if (!ret)
2253         {
2254             HeapFree(GetProcessHeap(), 0, *data);
2255             return RPC_S_SERVER_UNAVAILABLE;
2256         }
2257     }
2258     else
2259         *data = NULL;
2260
2261     if (!RPCRT4_IsValidHttpPacket(hdr, *data, data_len))
2262     {
2263         ERR("invalid http packet\n");
2264         return RPC_S_PROTOCOL_ERROR;
2265     }
2266
2267     return RPC_S_OK;
2268 }
2269
2270 /* prepare the out pipe for use by RPC packets */
2271 static RPC_STATUS rpcrt4_http_prepare_out_pipe(HINTERNET out_request,
2272                                                RpcHttpAsyncData *async_data,
2273                                                const UUID *connection_uuid,
2274                                                const UUID *out_pipe_uuid,
2275                                                ULONG *flow_control_increment)
2276 {
2277     BYTE packet[20];
2278     BOOL ret;
2279     RPC_STATUS status;
2280     RpcPktHdr *hdr;
2281     DWORD bytes_read;
2282     BYTE *data_from_server;
2283     RpcPktHdr pkt_from_server;
2284     ULONG field1, field3;
2285
2286     prepare_async_request(async_data);
2287     ret = HttpSendRequestW(out_request, NULL, 0, NULL, 0);
2288     if (!ret)
2289     {
2290         if (GetLastError() == ERROR_IO_PENDING)
2291             WaitForSingleObject(async_data->completion_event, INFINITE);
2292         else
2293         {
2294             RpcHttpAsyncData_Release(async_data);
2295             ERR("HttpSendRequestW failed with error %d\n", GetLastError());
2296             return RPC_S_SERVER_UNAVAILABLE;
2297         }
2298     }
2299     status = rpcrt4_http_check_response(out_request);
2300     if (status != RPC_S_OK) return status;
2301
2302     InternetReadFile(out_request, packet, 20, &bytes_read);
2303     /* FIXME: do something with retrieved data */
2304
2305     hdr = RPCRT4_BuildHttpConnectHeader(0, TRUE, connection_uuid, out_pipe_uuid, NULL);
2306     if (!hdr) return RPC_S_OUT_OF_RESOURCES;
2307
2308     prepare_async_request(async_data);
2309     ret = HttpSendRequestW(out_request, NULL, 0, hdr, hdr->common.frag_len);
2310     if (!ret)
2311     {
2312         if (GetLastError() == ERROR_IO_PENDING)
2313             WaitForSingleObject(async_data->completion_event, INFINITE);
2314         else
2315         {
2316             RpcHttpAsyncData_Release(async_data);
2317             ERR("HttpSendRequestW failed with error %d\n", GetLastError());
2318             RPCRT4_FreeHeader(hdr);
2319             return RPC_S_SERVER_UNAVAILABLE;
2320         }
2321     }
2322     RPCRT4_FreeHeader(hdr);
2323     status = rpcrt4_http_check_response(out_request);
2324     if (status != RPC_S_OK) return status;
2325
2326     status = rpcrt4_http_read_http_packet(out_request, &pkt_from_server,
2327                                           &data_from_server);
2328     if (status != RPC_S_OK) return status;
2329     status = RPCRT4_ParseHttpPrepareHeader1(&pkt_from_server, data_from_server,
2330                                             &field1);
2331     HeapFree(GetProcessHeap(), 0, data_from_server);
2332     if (status != RPC_S_OK) return status;
2333     TRACE("received (%d) from first prepare header\n", field1);
2334
2335     status = rpcrt4_http_read_http_packet(out_request, &pkt_from_server,
2336                                           &data_from_server);
2337     if (status != RPC_S_OK) return status;
2338     status = RPCRT4_ParseHttpPrepareHeader2(&pkt_from_server, data_from_server,
2339                                             &field1, flow_control_increment,
2340                                             &field3);
2341     HeapFree(GetProcessHeap(), 0, data_from_server);
2342     if (status != RPC_S_OK) return status;
2343     TRACE("received (0x%08x 0x%08x %d) from second prepare header\n", field1, *flow_control_increment, field3);
2344
2345     return RPC_S_OK;
2346 }
2347
2348 static RPC_STATUS rpcrt4_ncacn_http_open(RpcConnection* Connection)
2349 {
2350     RpcConnection_http *httpc = (RpcConnection_http *)Connection;
2351     static const WCHAR wszVerbIn[] = {'R','P','C','_','I','N','_','D','A','T','A',0};
2352     static const WCHAR wszVerbOut[] = {'R','P','C','_','O','U','T','_','D','A','T','A',0};
2353     static const WCHAR wszRpcProxyPrefix[] = {'/','r','p','c','/','r','p','c','p','r','o','x','y','.','d','l','l','?',0};
2354     static const WCHAR wszColon[] = {':',0};
2355     static const WCHAR wszAcceptType[] = {'a','p','p','l','i','c','a','t','i','o','n','/','r','p','c',0};
2356     LPCWSTR wszAcceptTypes[] = { wszAcceptType, NULL };
2357     WCHAR *url;
2358     RPC_STATUS status;
2359     BOOL secure;
2360     HttpTimerThreadData *timer_data;
2361     HANDLE thread;
2362
2363     TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
2364
2365     if (Connection->server)
2366     {
2367         ERR("ncacn_http servers not supported yet\n");
2368         return RPC_S_SERVER_UNAVAILABLE;
2369     }
2370
2371     if (httpc->in_request)
2372         return RPC_S_OK;
2373
2374     httpc->async_data->completion_event = CreateEventW(NULL, FALSE, FALSE, NULL);
2375
2376     status = UuidCreate(&httpc->connection_uuid);
2377     status = UuidCreate(&httpc->in_pipe_uuid);
2378     status = UuidCreate(&httpc->out_pipe_uuid);
2379
2380     status = rpcrt4_http_internet_connect(httpc);
2381     if (status != RPC_S_OK)
2382         return status;
2383
2384     url = HeapAlloc(GetProcessHeap(), 0, sizeof(wszRpcProxyPrefix) + (strlen(Connection->NetworkAddr) + 1 + strlen(Connection->Endpoint))*sizeof(WCHAR));
2385     if (!url)
2386         return RPC_S_OUT_OF_MEMORY;
2387     memcpy(url, wszRpcProxyPrefix, sizeof(wszRpcProxyPrefix));
2388     MultiByteToWideChar(CP_ACP, 0, Connection->NetworkAddr, -1, url+sizeof(wszRpcProxyPrefix)/sizeof(wszRpcProxyPrefix[0])-1, strlen(Connection->NetworkAddr)+1);
2389     strcatW(url, wszColon);
2390     MultiByteToWideChar(CP_ACP, 0, Connection->Endpoint, -1, url+strlenW(url), strlen(Connection->Endpoint)+1);
2391
2392     secure = httpc->common.QOS &&
2393              (httpc->common.QOS->qos->AdditionalSecurityInfoType == RPC_C_AUTHN_INFO_TYPE_HTTP) &&
2394              (httpc->common.QOS->qos->u.HttpCredentials->Flags & RPC_C_HTTP_FLAG_USE_SSL);
2395
2396     httpc->in_request = HttpOpenRequestW(httpc->session, wszVerbIn, url, NULL, NULL,
2397                                          wszAcceptTypes,
2398                                          (secure ? INTERNET_FLAG_SECURE : 0)|INTERNET_FLAG_KEEP_CONNECTION|INTERNET_FLAG_PRAGMA_NOCACHE,
2399                                          (DWORD_PTR)httpc->async_data);
2400     if (!httpc->in_request)
2401     {
2402         ERR("HttpOpenRequestW failed with error %d\n", GetLastError());
2403         return RPC_S_SERVER_UNAVAILABLE;
2404     }
2405     httpc->out_request = HttpOpenRequestW(httpc->session, wszVerbOut, url, NULL, NULL,
2406                                           wszAcceptTypes,
2407                                           (secure ? INTERNET_FLAG_SECURE : 0)|INTERNET_FLAG_KEEP_CONNECTION|INTERNET_FLAG_PRAGMA_NOCACHE,
2408                                           (DWORD_PTR)httpc->async_data);
2409     if (!httpc->out_request)
2410     {
2411         ERR("HttpOpenRequestW failed with error %d\n", GetLastError());
2412         return RPC_S_SERVER_UNAVAILABLE;
2413     }
2414
2415     status = rpcrt4_http_prepare_in_pipe(httpc->in_request,
2416                                          httpc->async_data,
2417                                          &httpc->connection_uuid,
2418                                          &httpc->in_pipe_uuid,
2419                                          &Connection->assoc->http_uuid);
2420     if (status != RPC_S_OK)
2421         return status;
2422
2423     status = rpcrt4_http_prepare_out_pipe(httpc->out_request,
2424                                           httpc->async_data,
2425                                           &httpc->connection_uuid,
2426                                           &httpc->out_pipe_uuid,
2427                                           &httpc->flow_control_increment);
2428     if (status != RPC_S_OK)
2429         return status;
2430
2431     httpc->flow_control_mark = httpc->flow_control_increment / 2;
2432     httpc->last_sent_time = GetTickCount();
2433     httpc->timer_cancelled = CreateEventW(NULL, FALSE, FALSE, NULL);
2434
2435     timer_data = HeapAlloc(GetProcessHeap(), 0, sizeof(*timer_data));
2436     if (!timer_data)
2437         return ERROR_OUTOFMEMORY;
2438     timer_data->timer_param = httpc->in_request;
2439     timer_data->last_sent_time = &httpc->last_sent_time;
2440     timer_data->timer_cancelled = httpc->timer_cancelled;
2441     /* FIXME: should use CreateTimerQueueTimer when implemented */
2442     thread = CreateThread(NULL, 0, rpcrt4_http_timer_thread, timer_data, 0, NULL);
2443     if (!thread)
2444     {
2445         HeapFree(GetProcessHeap(), 0, timer_data);
2446         return GetLastError();
2447     }
2448     CloseHandle(thread);
2449
2450     return RPC_S_OK;
2451 }
2452
2453 static RPC_STATUS rpcrt4_ncacn_http_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
2454 {
2455     assert(0);
2456     return RPC_S_SERVER_UNAVAILABLE;
2457 }
2458
2459 static int rpcrt4_ncacn_http_read(RpcConnection *Connection,
2460                                 void *buffer, unsigned int count)
2461 {
2462   RpcConnection_http *httpc = (RpcConnection_http *) Connection;
2463   char *buf = buffer;
2464   BOOL ret = TRUE;
2465   unsigned int bytes_left = count;
2466
2467   ResetEvent(httpc->async_data->completion_event);
2468   while (bytes_left)
2469   {
2470     RpcHttpAsyncData_AddRef(httpc->async_data);
2471     httpc->async_data->inet_buffers.dwBufferLength = bytes_left;
2472     httpc->async_data->inet_buffers.lpvBuffer = HeapAlloc(GetProcessHeap(), 0, bytes_left);
2473     httpc->async_data->destination_buffer = buf;
2474     ret = InternetReadFileExA(httpc->out_request, &httpc->async_data->inet_buffers, IRF_ASYNC, 0);
2475     if (ret)
2476     {
2477         /* INTERNET_STATUS_REQUEST_COMPLETED won't be sent, so release our
2478          * async ref now */
2479         RpcHttpAsyncData_Release(httpc->async_data);
2480         memcpy(buf, httpc->async_data->inet_buffers.lpvBuffer,
2481                httpc->async_data->inet_buffers.dwBufferLength);
2482         HeapFree(GetProcessHeap(), 0, httpc->async_data->inet_buffers.lpvBuffer);
2483         httpc->async_data->inet_buffers.lpvBuffer = NULL;
2484         httpc->async_data->destination_buffer = NULL;
2485     }
2486     else
2487     {
2488         if (GetLastError() == ERROR_IO_PENDING)
2489         {
2490             HANDLE handles[2] = { httpc->async_data->completion_event, httpc->cancel_event };
2491             DWORD result = WaitForMultipleObjects(2, handles, FALSE, DEFAULT_NCACN_HTTP_TIMEOUT);
2492             if (result == WAIT_OBJECT_0)
2493                 ret = TRUE;
2494             else
2495             {
2496                 TRACE("call cancelled\n");
2497                 EnterCriticalSection(&httpc->async_data->cs);
2498                 httpc->async_data->destination_buffer = NULL;
2499                 LeaveCriticalSection(&httpc->async_data->cs);
2500                 break;
2501             }
2502         }
2503         else
2504         {
2505             HeapFree(GetProcessHeap(), 0, httpc->async_data->inet_buffers.lpvBuffer);
2506             httpc->async_data->inet_buffers.lpvBuffer = NULL;
2507             httpc->async_data->destination_buffer = NULL;
2508             RpcHttpAsyncData_Release(httpc->async_data);
2509             break;
2510         }
2511     }
2512     if (!httpc->async_data->inet_buffers.dwBufferLength)
2513         break;
2514     bytes_left -= httpc->async_data->inet_buffers.dwBufferLength;
2515     buf += httpc->async_data->inet_buffers.dwBufferLength;
2516   }
2517   TRACE("%p %p %u -> %s\n", httpc->out_request, buffer, count, ret ? "TRUE" : "FALSE");
2518   return ret ? count : -1;
2519 }
2520
2521 static RPC_STATUS rpcrt4_ncacn_http_receive_fragment(RpcConnection *Connection, RpcPktHdr **Header, void **Payload)
2522 {
2523   RpcConnection_http *httpc = (RpcConnection_http *) Connection;
2524   RPC_STATUS status;
2525   DWORD hdr_length;
2526   LONG dwRead;
2527   RpcPktCommonHdr common_hdr;
2528
2529   *Header = NULL;
2530
2531   TRACE("(%p, %p, %p)\n", Connection, Header, Payload);
2532
2533 again:
2534   /* read packet common header */
2535   dwRead = rpcrt4_ncacn_http_read(Connection, &common_hdr, sizeof(common_hdr));
2536   if (dwRead != sizeof(common_hdr)) {
2537     WARN("Short read of header, %d bytes\n", dwRead);
2538     status = RPC_S_PROTOCOL_ERROR;
2539     goto fail;
2540   }
2541   if (!memcmp(&common_hdr, "HTTP/1.1", sizeof("HTTP/1.1")) ||
2542       !memcmp(&common_hdr, "HTTP/1.0", sizeof("HTTP/1.0")))
2543   {
2544     FIXME("server returned %s\n", debugstr_a((const char *)&common_hdr));
2545     status = RPC_S_PROTOCOL_ERROR;
2546     goto fail;
2547   }
2548
2549   status = RPCRT4_ValidateCommonHeader(&common_hdr);
2550   if (status != RPC_S_OK) goto fail;
2551
2552   hdr_length = RPCRT4_GetHeaderSize((RpcPktHdr*)&common_hdr);
2553   if (hdr_length == 0) {
2554     WARN("header length == 0\n");
2555     status = RPC_S_PROTOCOL_ERROR;
2556     goto fail;
2557   }
2558
2559   *Header = HeapAlloc(GetProcessHeap(), 0, hdr_length);
2560   if (!*Header)
2561   {
2562     status = RPC_S_OUT_OF_RESOURCES;
2563     goto fail;
2564   }
2565   memcpy(*Header, &common_hdr, sizeof(common_hdr));
2566
2567   /* read the rest of packet header */
2568   dwRead = rpcrt4_ncacn_http_read(Connection, &(*Header)->common + 1, hdr_length - sizeof(common_hdr));
2569   if (dwRead != hdr_length - sizeof(common_hdr)) {
2570     WARN("bad header length, %d bytes, hdr_length %d\n", dwRead, hdr_length);
2571     status = RPC_S_PROTOCOL_ERROR;
2572     goto fail;
2573   }
2574
2575   if (common_hdr.frag_len - hdr_length)
2576   {
2577     *Payload = HeapAlloc(GetProcessHeap(), 0, common_hdr.frag_len - hdr_length);
2578     if (!*Payload)
2579     {
2580       status = RPC_S_OUT_OF_RESOURCES;
2581       goto fail;
2582     }
2583
2584     dwRead = rpcrt4_ncacn_http_read(Connection, *Payload, common_hdr.frag_len - hdr_length);
2585     if (dwRead != common_hdr.frag_len - hdr_length)
2586     {
2587       WARN("bad data length, %d/%d\n", dwRead, common_hdr.frag_len - hdr_length);
2588       status = RPC_S_PROTOCOL_ERROR;
2589       goto fail;
2590     }
2591   }
2592   else
2593     *Payload = NULL;
2594
2595   if ((*Header)->common.ptype == PKT_HTTP)
2596   {
2597     if (!RPCRT4_IsValidHttpPacket(*Header, *Payload, common_hdr.frag_len - hdr_length))
2598     {
2599       ERR("invalid http packet of length %d bytes\n", (*Header)->common.frag_len);
2600       status = RPC_S_PROTOCOL_ERROR;
2601       goto fail;
2602     }
2603     if ((*Header)->http.flags == 0x0001)
2604     {
2605       TRACE("http idle packet, waiting for real packet\n");
2606       if ((*Header)->http.num_data_items != 0)
2607       {
2608         ERR("HTTP idle packet should have no data items instead of %d\n", (*Header)->http.num_data_items);
2609         status = RPC_S_PROTOCOL_ERROR;
2610         goto fail;
2611       }
2612     }
2613     else if ((*Header)->http.flags == 0x0002)
2614     {
2615       ULONG bytes_transmitted;
2616       ULONG flow_control_increment;
2617       UUID pipe_uuid;
2618       status = RPCRT4_ParseHttpFlowControlHeader(*Header, *Payload,
2619                                                  Connection->server,
2620                                                  &bytes_transmitted,
2621                                                  &flow_control_increment,
2622                                                  &pipe_uuid);
2623       if (status != RPC_S_OK)
2624         goto fail;
2625       TRACE("received http flow control header (0x%x, 0x%x, %s)\n",
2626             bytes_transmitted, flow_control_increment, debugstr_guid(&pipe_uuid));
2627       /* FIXME: do something with parsed data */
2628     }
2629     else
2630     {
2631       FIXME("unrecognised http packet with flags 0x%04x\n", (*Header)->http.flags);
2632       status = RPC_S_PROTOCOL_ERROR;
2633       goto fail;
2634     }
2635     RPCRT4_FreeHeader(*Header);
2636     *Header = NULL;
2637     HeapFree(GetProcessHeap(), 0, *Payload);
2638     *Payload = NULL;
2639     goto again;
2640   }
2641
2642   /* success */
2643   status = RPC_S_OK;
2644
2645   httpc->bytes_received += common_hdr.frag_len;
2646
2647   TRACE("httpc->bytes_received = 0x%x\n", httpc->bytes_received);
2648
2649   if (httpc->bytes_received > httpc->flow_control_mark)
2650   {
2651     RpcPktHdr *hdr = RPCRT4_BuildHttpFlowControlHeader(httpc->common.server,
2652                                                        httpc->bytes_received,
2653                                                        httpc->flow_control_increment,
2654                                                        &httpc->out_pipe_uuid);
2655     if (hdr)
2656     {
2657       DWORD bytes_written;
2658       BOOL ret2;
2659       TRACE("sending flow control packet at 0x%x\n", httpc->bytes_received);
2660       ret2 = InternetWriteFile(httpc->in_request, hdr, hdr->common.frag_len, &bytes_written);
2661       RPCRT4_FreeHeader(hdr);
2662       if (ret2)
2663         httpc->flow_control_mark = httpc->bytes_received + httpc->flow_control_increment / 2;
2664     }
2665   }
2666
2667 fail:
2668   if (status != RPC_S_OK) {
2669     RPCRT4_FreeHeader(*Header);
2670     *Header = NULL;
2671     HeapFree(GetProcessHeap(), 0, *Payload);
2672     *Payload = NULL;
2673   }
2674   return status;
2675 }
2676
2677 static int rpcrt4_ncacn_http_write(RpcConnection *Connection,
2678                                  const void *buffer, unsigned int count)
2679 {
2680   RpcConnection_http *httpc = (RpcConnection_http *) Connection;
2681   DWORD bytes_written;
2682   BOOL ret;
2683
2684   httpc->last_sent_time = ~0U; /* disable idle packet sending */
2685   ret = InternetWriteFile(httpc->in_request, buffer, count, &bytes_written);
2686   httpc->last_sent_time = GetTickCount();
2687   TRACE("%p %p %u -> %s\n", httpc->in_request, buffer, count, ret ? "TRUE" : "FALSE");
2688   return ret ? bytes_written : -1;
2689 }
2690
2691 static int rpcrt4_ncacn_http_close(RpcConnection *Connection)
2692 {
2693   RpcConnection_http *httpc = (RpcConnection_http *) Connection;
2694
2695   TRACE("\n");
2696
2697   SetEvent(httpc->timer_cancelled);
2698   if (httpc->in_request)
2699     InternetCloseHandle(httpc->in_request);
2700   httpc->in_request = NULL;
2701   if (httpc->out_request)
2702     InternetCloseHandle(httpc->out_request);
2703   httpc->out_request = NULL;
2704   if (httpc->app_info)
2705     InternetCloseHandle(httpc->app_info);
2706   httpc->app_info = NULL;
2707   if (httpc->session)
2708     InternetCloseHandle(httpc->session);
2709   httpc->session = NULL;
2710   RpcHttpAsyncData_Release(httpc->async_data);
2711   if (httpc->cancel_event)
2712     CloseHandle(httpc->cancel_event);
2713
2714   return 0;
2715 }
2716
2717 static void rpcrt4_ncacn_http_cancel_call(RpcConnection *Connection)
2718 {
2719   RpcConnection_http *httpc = (RpcConnection_http *) Connection;
2720
2721   SetEvent(httpc->cancel_event);
2722 }
2723
2724 static int rpcrt4_ncacn_http_wait_for_incoming_data(RpcConnection *Connection)
2725 {
2726   BOOL ret;
2727   RpcConnection_http *httpc = (RpcConnection_http *) Connection;
2728
2729   RpcHttpAsyncData_AddRef(httpc->async_data);
2730   ret = InternetQueryDataAvailable(httpc->out_request,
2731     &httpc->async_data->inet_buffers.dwBufferLength, IRF_ASYNC, 0);
2732   if (ret)
2733   {
2734       /* INTERNET_STATUS_REQUEST_COMPLETED won't be sent, so release our
2735        * async ref now */
2736       RpcHttpAsyncData_Release(httpc->async_data);
2737   }
2738   else
2739   {
2740     if (GetLastError() == ERROR_IO_PENDING)
2741     {
2742       HANDLE handles[2] = { httpc->async_data->completion_event, httpc->cancel_event };
2743       DWORD result = WaitForMultipleObjects(2, handles, FALSE, DEFAULT_NCACN_HTTP_TIMEOUT);
2744       if (result != WAIT_OBJECT_0)
2745       {
2746         TRACE("call cancelled\n");
2747         return -1;
2748       }
2749     }
2750     else
2751     {
2752       RpcHttpAsyncData_Release(httpc->async_data);
2753       return -1;
2754     }
2755   }
2756
2757   /* success */
2758   return 0;
2759 }
2760
2761 static size_t rpcrt4_ncacn_http_get_top_of_tower(unsigned char *tower_data,
2762                                                  const char *networkaddr,
2763                                                  const char *endpoint)
2764 {
2765     return rpcrt4_ip_tcp_get_top_of_tower(tower_data, networkaddr,
2766                                           EPM_PROTOCOL_HTTP, endpoint);
2767 }
2768
2769 static RPC_STATUS rpcrt4_ncacn_http_parse_top_of_tower(const unsigned char *tower_data,
2770                                                        size_t tower_size,
2771                                                        char **networkaddr,
2772                                                        char **endpoint)
2773 {
2774     return rpcrt4_ip_tcp_parse_top_of_tower(tower_data, tower_size,
2775                                             networkaddr, EPM_PROTOCOL_HTTP,
2776                                             endpoint);
2777 }
2778
2779 static const struct connection_ops conn_protseq_list[] = {
2780   { "ncacn_np",
2781     { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
2782     rpcrt4_conn_np_alloc,
2783     rpcrt4_ncacn_np_open,
2784     rpcrt4_ncacn_np_handoff,
2785     rpcrt4_conn_np_read,
2786     rpcrt4_conn_np_write,
2787     rpcrt4_conn_np_close,
2788     rpcrt4_conn_np_cancel_call,
2789     rpcrt4_conn_np_wait_for_incoming_data,
2790     rpcrt4_ncacn_np_get_top_of_tower,
2791     rpcrt4_ncacn_np_parse_top_of_tower,
2792     NULL,
2793     RPCRT4_default_is_authorized,
2794     RPCRT4_default_authorize,
2795     RPCRT4_default_secure_packet,
2796     rpcrt4_conn_np_impersonate_client,
2797     rpcrt4_conn_np_revert_to_self,
2798     RPCRT4_default_inquire_auth_client,
2799   },
2800   { "ncalrpc",
2801     { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
2802     rpcrt4_conn_np_alloc,
2803     rpcrt4_ncalrpc_open,
2804     rpcrt4_ncalrpc_handoff,
2805     rpcrt4_conn_np_read,
2806     rpcrt4_conn_np_write,
2807     rpcrt4_conn_np_close,
2808     rpcrt4_conn_np_cancel_call,
2809     rpcrt4_conn_np_wait_for_incoming_data,
2810     rpcrt4_ncalrpc_get_top_of_tower,
2811     rpcrt4_ncalrpc_parse_top_of_tower,
2812     NULL,
2813     rpcrt4_ncalrpc_is_authorized,
2814     rpcrt4_ncalrpc_authorize,
2815     rpcrt4_ncalrpc_secure_packet,
2816     rpcrt4_conn_np_impersonate_client,
2817     rpcrt4_conn_np_revert_to_self,
2818     rpcrt4_ncalrpc_inquire_auth_client,
2819   },
2820   { "ncacn_ip_tcp",
2821     { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
2822     rpcrt4_conn_tcp_alloc,
2823     rpcrt4_ncacn_ip_tcp_open,
2824     rpcrt4_conn_tcp_handoff,
2825     rpcrt4_conn_tcp_read,
2826     rpcrt4_conn_tcp_write,
2827     rpcrt4_conn_tcp_close,
2828     rpcrt4_conn_tcp_cancel_call,
2829     rpcrt4_conn_tcp_wait_for_incoming_data,
2830     rpcrt4_ncacn_ip_tcp_get_top_of_tower,
2831     rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
2832     NULL,
2833     RPCRT4_default_is_authorized,
2834     RPCRT4_default_authorize,
2835     RPCRT4_default_secure_packet,
2836     RPCRT4_default_impersonate_client,
2837     RPCRT4_default_revert_to_self,
2838     RPCRT4_default_inquire_auth_client,
2839   },
2840   { "ncacn_http",
2841     { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_HTTP },
2842     rpcrt4_ncacn_http_alloc,
2843     rpcrt4_ncacn_http_open,
2844     rpcrt4_ncacn_http_handoff,
2845     rpcrt4_ncacn_http_read,
2846     rpcrt4_ncacn_http_write,
2847     rpcrt4_ncacn_http_close,
2848     rpcrt4_ncacn_http_cancel_call,
2849     rpcrt4_ncacn_http_wait_for_incoming_data,
2850     rpcrt4_ncacn_http_get_top_of_tower,
2851     rpcrt4_ncacn_http_parse_top_of_tower,
2852     rpcrt4_ncacn_http_receive_fragment,
2853     RPCRT4_default_is_authorized,
2854     RPCRT4_default_authorize,
2855     RPCRT4_default_secure_packet,
2856     RPCRT4_default_impersonate_client,
2857     RPCRT4_default_revert_to_self,
2858     RPCRT4_default_inquire_auth_client,
2859   },
2860 };
2861
2862
2863 static const struct protseq_ops protseq_list[] =
2864 {
2865     {
2866         "ncacn_np",
2867         rpcrt4_protseq_np_alloc,
2868         rpcrt4_protseq_np_signal_state_changed,
2869         rpcrt4_protseq_np_get_wait_array,
2870         rpcrt4_protseq_np_free_wait_array,
2871         rpcrt4_protseq_np_wait_for_new_connection,
2872         rpcrt4_protseq_ncacn_np_open_endpoint,
2873     },
2874     {
2875         "ncalrpc",
2876         rpcrt4_protseq_np_alloc,
2877         rpcrt4_protseq_np_signal_state_changed,
2878         rpcrt4_protseq_np_get_wait_array,
2879         rpcrt4_protseq_np_free_wait_array,
2880         rpcrt4_protseq_np_wait_for_new_connection,
2881         rpcrt4_protseq_ncalrpc_open_endpoint,
2882     },
2883     {
2884         "ncacn_ip_tcp",
2885         rpcrt4_protseq_sock_alloc,
2886         rpcrt4_protseq_sock_signal_state_changed,
2887         rpcrt4_protseq_sock_get_wait_array,
2888         rpcrt4_protseq_sock_free_wait_array,
2889         rpcrt4_protseq_sock_wait_for_new_connection,
2890         rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
2891     },
2892 };
2893
2894 #define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
2895
2896 const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
2897 {
2898   unsigned int i;
2899   for(i=0; i<ARRAYSIZE(protseq_list); i++)
2900     if (!strcmp(protseq_list[i].name, protseq))
2901       return &protseq_list[i];
2902   return NULL;
2903 }
2904
2905 static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
2906 {
2907     unsigned int i;
2908     for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
2909         if (!strcmp(conn_protseq_list[i].name, protseq))
2910             return &conn_protseq_list[i];
2911     return NULL;
2912 }
2913
2914 /**** interface to rest of code ****/
2915
2916 RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
2917 {
2918   TRACE("(Connection == ^%p)\n", Connection);
2919
2920   assert(!Connection->server);
2921   return Connection->ops->open_connection_client(Connection);
2922 }
2923
2924 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
2925 {
2926   TRACE("(Connection == ^%p)\n", Connection);
2927   if (SecIsValidHandle(&Connection->ctx))
2928   {
2929     DeleteSecurityContext(&Connection->ctx);
2930     SecInvalidateHandle(&Connection->ctx);
2931   }
2932   rpcrt4_conn_close(Connection);
2933   return RPC_S_OK;
2934 }
2935
2936 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
2937     LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
2938     LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
2939 {
2940   static LONG next_id;
2941   const struct connection_ops *ops;
2942   RpcConnection* NewConnection;
2943
2944   ops = rpcrt4_get_conn_protseq_ops(Protseq);
2945   if (!ops)
2946   {
2947     FIXME("not supported for protseq %s\n", Protseq);
2948     return RPC_S_PROTSEQ_NOT_SUPPORTED;
2949   }
2950
2951   NewConnection = ops->alloc();
2952   NewConnection->ref = 1;
2953   NewConnection->Next = NULL;
2954   NewConnection->server_binding = NULL;
2955   NewConnection->server = server;
2956   NewConnection->ops = ops;
2957   NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
2958   NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
2959   NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
2960   NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
2961   memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
2962   NewConnection->NextCallId = 1;
2963
2964   SecInvalidateHandle(&NewConnection->ctx);
2965   memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
2966   NewConnection->attr = 0;
2967   if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
2968   NewConnection->AuthInfo = AuthInfo;
2969   NewConnection->auth_context_id = InterlockedIncrement( &next_id );
2970   NewConnection->encryption_auth_len = 0;
2971   NewConnection->signature_auth_len = 0;
2972   if (QOS) RpcQualityOfService_AddRef(QOS);
2973   NewConnection->QOS = QOS;
2974
2975   list_init(&NewConnection->conn_pool_entry);
2976   NewConnection->async_state = NULL;
2977
2978   TRACE("connection: %p\n", NewConnection);
2979   *Connection = NewConnection;
2980
2981   return RPC_S_OK;
2982 }
2983
2984 static RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
2985 {
2986   RPC_STATUS err;
2987
2988   err = RPCRT4_CreateConnection(Connection, OldConnection->server,
2989                                 rpcrt4_conn_get_name(OldConnection),
2990                                 OldConnection->NetworkAddr,
2991                                 OldConnection->Endpoint, NULL,
2992                                 OldConnection->AuthInfo, OldConnection->QOS);
2993   if (err == RPC_S_OK)
2994     rpcrt4_conn_handoff(OldConnection, *Connection);
2995   return err;
2996 }
2997
2998 RpcConnection *RPCRT4_GrabConnection( RpcConnection *conn )
2999 {
3000     InterlockedIncrement( &conn->ref );
3001     return conn;
3002 }
3003
3004 RPC_STATUS RPCRT4_ReleaseConnection(RpcConnection* Connection)
3005 {
3006   if (InterlockedDecrement( &Connection->ref ) > 0) return RPC_S_OK;
3007
3008   TRACE("destroying connection %p\n", Connection);
3009
3010   RPCRT4_CloseConnection(Connection);
3011   RPCRT4_strfree(Connection->Endpoint);
3012   RPCRT4_strfree(Connection->NetworkAddr);
3013   HeapFree(GetProcessHeap(), 0, Connection->NetworkOptions);
3014   if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
3015   if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
3016
3017   /* server-only */
3018   if (Connection->server_binding) RPCRT4_ReleaseBinding(Connection->server_binding);
3019
3020   HeapFree(GetProcessHeap(), 0, Connection);
3021   return RPC_S_OK;
3022 }
3023
3024 RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
3025                                       size_t *tower_size,
3026                                       const char *protseq,
3027                                       const char *networkaddr,
3028                                       const char *endpoint)
3029 {
3030     twr_empty_floor_t *protocol_floor;
3031     const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
3032
3033     *tower_size = 0;
3034
3035     if (!protseq_ops)
3036         return RPC_S_INVALID_RPC_PROTSEQ;
3037
3038     if (!tower_data)
3039     {
3040         *tower_size = sizeof(*protocol_floor);
3041         *tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
3042         return RPC_S_OK;
3043     }
3044
3045     protocol_floor = (twr_empty_floor_t *)tower_data;
3046     protocol_floor->count_lhs = sizeof(protocol_floor->protid);
3047     protocol_floor->protid = protseq_ops->epm_protocols[0];
3048     protocol_floor->count_rhs = 0;
3049
3050     tower_data += sizeof(*protocol_floor);
3051
3052     *tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
3053     if (!*tower_size)
3054         return EPT_S_NOT_REGISTERED;
3055
3056     *tower_size += sizeof(*protocol_floor);
3057
3058     return RPC_S_OK;
3059 }
3060
3061 RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
3062                                         size_t tower_size,
3063                                         char **protseq,
3064                                         char **networkaddr,
3065                                         char **endpoint)
3066 {
3067     const twr_empty_floor_t *protocol_floor;
3068     const twr_empty_floor_t *floor4;
3069     const struct connection_ops *protseq_ops = NULL;
3070     RPC_STATUS status;
3071     unsigned int i;
3072
3073     if (tower_size < sizeof(*protocol_floor))
3074         return EPT_S_NOT_REGISTERED;
3075
3076     protocol_floor = (const twr_empty_floor_t *)tower_data;
3077     tower_data += sizeof(*protocol_floor);
3078     tower_size -= sizeof(*protocol_floor);
3079     if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
3080         (protocol_floor->count_rhs > tower_size))
3081         return EPT_S_NOT_REGISTERED;
3082     tower_data += protocol_floor->count_rhs;
3083     tower_size -= protocol_floor->count_rhs;
3084
3085     floor4 = (const twr_empty_floor_t *)tower_data;
3086     if ((tower_size < sizeof(*floor4)) ||
3087         (floor4->count_lhs != sizeof(floor4->protid)))
3088         return EPT_S_NOT_REGISTERED;
3089
3090     for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
3091         if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
3092             (floor4->protid == conn_protseq_list[i].epm_protocols[1]))
3093         {
3094             protseq_ops = &conn_protseq_list[i];
3095             break;
3096         }
3097
3098     if (!protseq_ops)
3099         return EPT_S_NOT_REGISTERED;
3100
3101     status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
3102
3103     if ((status == RPC_S_OK) && protseq)
3104     {
3105         *protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
3106         strcpy(*protseq, protseq_ops->name);
3107     }
3108
3109     return status;
3110 }
3111
3112 /***********************************************************************
3113  *             RpcNetworkIsProtseqValidW (RPCRT4.@)
3114  *
3115  * Checks if the given protocol sequence is known by the RPC system.
3116  * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
3117  *
3118  */
3119 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
3120 {
3121   char ps[0x10];
3122
3123   WideCharToMultiByte(CP_ACP, 0, protseq, -1,
3124                       ps, sizeof ps, NULL, NULL);
3125   if (rpcrt4_get_conn_protseq_ops(ps))
3126     return RPC_S_OK;
3127
3128   FIXME("Unknown protseq %s\n", debugstr_w(protseq));
3129
3130   return RPC_S_INVALID_RPC_PROTSEQ;
3131 }
3132
3133 /***********************************************************************
3134  *             RpcNetworkIsProtseqValidA (RPCRT4.@)
3135  */
3136 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
3137 {
3138   UNICODE_STRING protseqW;
3139
3140   if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
3141   {
3142     RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
3143     RtlFreeUnicodeString(&protseqW);
3144     return ret;
3145   }
3146   return RPC_S_OUT_OF_MEMORY;
3147 }
3148
3149 /***********************************************************************
3150  *             RpcProtseqVectorFreeA (RPCRT4.@)
3151  */
3152 RPC_STATUS WINAPI RpcProtseqVectorFreeA(RPC_PROTSEQ_VECTORA **protseqs)
3153 {
3154   TRACE("(%p)\n", protseqs);
3155
3156   if (*protseqs)
3157   {
3158     int i;
3159     for (i = 0; i < (*protseqs)->Count; i++)
3160       HeapFree(GetProcessHeap(), 0, (*protseqs)->Protseq[i]);
3161     HeapFree(GetProcessHeap(), 0, *protseqs);
3162     *protseqs = NULL;
3163   }
3164   return RPC_S_OK;
3165 }
3166
3167 /***********************************************************************
3168  *             RpcProtseqVectorFreeW (RPCRT4.@)
3169  */
3170 RPC_STATUS WINAPI RpcProtseqVectorFreeW(RPC_PROTSEQ_VECTORW **protseqs)
3171 {
3172   TRACE("(%p)\n", protseqs);
3173
3174   if (*protseqs)
3175   {
3176     int i;
3177     for (i = 0; i < (*protseqs)->Count; i++)
3178       HeapFree(GetProcessHeap(), 0, (*protseqs)->Protseq[i]);
3179     HeapFree(GetProcessHeap(), 0, *protseqs);
3180     *protseqs = NULL;
3181   }
3182   return RPC_S_OK;
3183 }
3184
3185 /***********************************************************************
3186  *             RpcNetworkInqProtseqsW (RPCRT4.@)
3187  */
3188 RPC_STATUS WINAPI RpcNetworkInqProtseqsW( RPC_PROTSEQ_VECTORW** protseqs )
3189 {
3190   RPC_PROTSEQ_VECTORW *pvector;
3191   int i = 0;
3192   RPC_STATUS status = RPC_S_OUT_OF_MEMORY;
3193
3194   TRACE("(%p)\n", protseqs);
3195
3196   *protseqs = HeapAlloc(GetProcessHeap(), 0, sizeof(RPC_PROTSEQ_VECTORW)+(sizeof(unsigned short*)*ARRAYSIZE(protseq_list)));
3197   if (!*protseqs)
3198     goto end;
3199   pvector = *protseqs;
3200   pvector->Count = 0;
3201   for (i = 0; i < ARRAYSIZE(protseq_list); i++)
3202   {
3203     pvector->Protseq[i] = HeapAlloc(GetProcessHeap(), 0, (strlen(protseq_list[i].name)+1)*sizeof(unsigned short));
3204     if (pvector->Protseq[i] == NULL)
3205       goto end;
3206     MultiByteToWideChar(CP_ACP, 0, (CHAR*)protseq_list[i].name, -1,
3207       (WCHAR*)pvector->Protseq[i], strlen(protseq_list[i].name) + 1);
3208     pvector->Count++;
3209   }
3210   status = RPC_S_OK;
3211
3212 end:
3213   if (status != RPC_S_OK)
3214     RpcProtseqVectorFreeW(protseqs);
3215   return status;
3216 }
3217
3218 /***********************************************************************
3219  *             RpcNetworkInqProtseqsA (RPCRT4.@)
3220  */
3221 RPC_STATUS WINAPI RpcNetworkInqProtseqsA(RPC_PROTSEQ_VECTORA** protseqs)
3222 {
3223   RPC_PROTSEQ_VECTORA *pvector;
3224   int i = 0;
3225   RPC_STATUS status = RPC_S_OUT_OF_MEMORY;
3226
3227   TRACE("(%p)\n", protseqs);
3228
3229   *protseqs = HeapAlloc(GetProcessHeap(), 0, sizeof(RPC_PROTSEQ_VECTORW)+(sizeof(unsigned char*)*ARRAYSIZE(protseq_list)));
3230   if (!*protseqs)
3231     goto end;
3232   pvector = *protseqs;
3233   pvector->Count = 0;
3234   for (i = 0; i < ARRAYSIZE(protseq_list); i++)
3235   {
3236     pvector->Protseq[i] = HeapAlloc(GetProcessHeap(), 0, strlen(protseq_list[i].name)+1);
3237     if (pvector->Protseq[i] == NULL)
3238       goto end;
3239     strcpy((char*)pvector->Protseq[i], protseq_list[i].name);
3240     pvector->Count++;
3241   }
3242   status = RPC_S_OK;
3243
3244 end:
3245   if (status != RPC_S_OK)
3246     RpcProtseqVectorFreeA(protseqs);
3247   return status;
3248 }