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 #else
  44 # include <errno.h>
  45 # ifdef HAVE_UNISTD_H
  46 #  include <unistd.h>
  47 # endif
  48 # include <fcntl.h>
  49 # ifdef HAVE_SYS_SOCKET_H
  50 #  include <sys/socket.h>
  51 # endif
  52 # ifdef HAVE_NETINET_IN_H
  53 #  include <netinet/in.h>
  54 # endif
  55 # ifdef HAVE_NETINET_TCP_H
  56 #  include <netinet/tcp.h>
  57 # endif
  58 # ifdef HAVE_ARPA_INET_H
  59 #  include <arpa/inet.h>
  60 # endif
  61 # ifdef HAVE_NETDB_H
  62 #  include <netdb.h>
  63 # endif
  64 # ifdef HAVE_SYS_POLL_H
  65 #  include <sys/poll.h>
  66 # endif
  67 # define closesocket close
  68 #endif /* defined(__MINGW32__) || defined (_MSC_VER) */
  69
  70 #include "windef.h"
  71 #include "winbase.h"
  72 #include "winnls.h"
  73 #include "winerror.h"
  74 #include "winternl.h"
  75 #include "wine/unicode.h"
  76
  77 #include "rpc.h"
  78 #include "rpcndr.h"
  79
  80 #include "wine/debug.h"
  81
  82 #include "rpc_binding.h"
  83 #include "rpc_message.h"
  84 #include "rpc_server.h"
  85 #include "epm_towers.h"
  86
  87 #ifndef SOL_TCP
  88 # define SOL_TCP IPPROTO_TCP
  89 #endif
  90
  91 WINE_DEFAULT_DEBUG_CHANNEL(rpc);
  92
  93 static RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection);
  94
  95 /**** ncacn_np support ****/
  96
  97 typedef struct _RpcConnection_np
  98 {
  99   RpcConnection common;
 100   HANDLE pipe;
 101   OVERLAPPED ovl;
 102   BOOL listening;
 103 } RpcConnection_np;
 104
 105 static RpcConnection *rpcrt4_conn_np_alloc(void)
 106 {
 107   RpcConnection_np *npc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_np));
 108   if (npc)
 109   {
 110     npc->pipe = NULL;
 111     memset(&npc->ovl, 0, sizeof(npc->ovl));
 112     npc->listening = FALSE;
 113   }
 114   return &npc->common;
 115 }
 116
 117 static RPC_STATUS rpcrt4_conn_listen_pipe(RpcConnection_np *npc)
 118 {
 119   if (npc->listening)
 120     return RPC_S_OK;
 121
 122   npc->listening = TRUE;
 123   for (;;)
 124   {
 125       if (ConnectNamedPipe(npc->pipe, &npc->ovl))
 126           return RPC_S_OK;
 127
 128       switch(GetLastError())
 129       {
 130       case ERROR_PIPE_CONNECTED:
 131           SetEvent(npc->ovl.hEvent);
 132           return RPC_S_OK;
 133       case ERROR_IO_PENDING:
 134           /* will be completed in rpcrt4_protseq_np_wait_for_new_connection */
 135           return RPC_S_OK;
 136       case ERROR_NO_DATA_DETECTED:
 137           /* client has disconnected, retry */
 138           DisconnectNamedPipe( npc->pipe );
 139           break;
 140       default:
 141           npc->listening = FALSE;
 142           WARN("Couldn't ConnectNamedPipe (error was %d)\n", GetLastError());
 143           return RPC_S_OUT_OF_RESOURCES;
 144       }
 145   }
 146 }
 147
 148 static RPC_STATUS rpcrt4_conn_create_pipe(RpcConnection *Connection, LPCSTR pname)
 149 {
 150   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 151   TRACE("listening on %s\n", pname);
 152
 153   npc->pipe = CreateNamedPipeA(pname, PIPE_ACCESS_DUPLEX,
 154                                PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE,
 155                                PIPE_UNLIMITED_INSTANCES,
 156                                RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
 157   if (npc->pipe == INVALID_HANDLE_VALUE) {
 158     WARN("CreateNamedPipe failed with error %d\n", GetLastError());
 159     if (GetLastError() == ERROR_FILE_EXISTS)
 160       return RPC_S_DUPLICATE_ENDPOINT;
 161     else
 162       return RPC_S_CANT_CREATE_ENDPOINT;
 163   }
 164
 165   memset(&npc->ovl, 0, sizeof(npc->ovl));
 166   npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
 167
 168   /* Note: we don't call ConnectNamedPipe here because it must be done in the
 169    * server thread as the thread must be alertable */
 170   return RPC_S_OK;
 171 }
 172
 173 static RPC_STATUS rpcrt4_conn_open_pipe(RpcConnection *Connection, LPCSTR pname, BOOL wait)
 174 {
 175   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 176   HANDLE pipe;
 177   DWORD err, dwMode;
 178
 179   TRACE("connecting to %s\n", pname);
 180
 181   while (TRUE) {
 182     DWORD dwFlags = 0;
 183     if (Connection->QOS)
 184     {
 185         dwFlags = SECURITY_SQOS_PRESENT;
 186         switch (Connection->QOS->qos->ImpersonationType)
 187         {
 188             case RPC_C_IMP_LEVEL_DEFAULT:
 189                 /* FIXME: what to do here? */
 190                 break;
 191             case RPC_C_IMP_LEVEL_ANONYMOUS:
 192                 dwFlags |= SECURITY_ANONYMOUS;
 193                 break;
 194             case RPC_C_IMP_LEVEL_IDENTIFY:
 195                 dwFlags |= SECURITY_IDENTIFICATION;
 196                 break;
 197             case RPC_C_IMP_LEVEL_IMPERSONATE:
 198                 dwFlags |= SECURITY_IMPERSONATION;
 199                 break;
 200             case RPC_C_IMP_LEVEL_DELEGATE:
 201                 dwFlags |= SECURITY_DELEGATION;
 202                 break;
 203         }
 204         if (Connection->QOS->qos->IdentityTracking == RPC_C_QOS_IDENTIFY_DYNAMIC)
 205             dwFlags |= SECURITY_CONTEXT_TRACKING;
 206     }
 207     pipe = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
 208                        OPEN_EXISTING, dwFlags, 0);
 209     if (pipe != INVALID_HANDLE_VALUE) break;
 210     err = GetLastError();
 211     if (err == ERROR_PIPE_BUSY) {
 212       TRACE("connection failed, error=%x\n", err);
 213       return RPC_S_SERVER_TOO_BUSY;
 214     }
 215     if (!wait || !WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
 216       err = GetLastError();
 217       WARN("connection failed, error=%x\n", err);
 218       return RPC_S_SERVER_UNAVAILABLE;
 219     }
 220   }
 221
 222   /* success */
 223   memset(&npc->ovl, 0, sizeof(npc->ovl));
 224   /* pipe is connected; change to message-read mode. */
 225   dwMode = PIPE_READMODE_MESSAGE;
 226   SetNamedPipeHandleState(pipe, &dwMode, NULL, NULL);
 227   npc->ovl.hEvent = CreateEventW(NULL, TRUE, FALSE, NULL);
 228   npc->pipe = pipe;
 229
 230   return RPC_S_OK;
 231 }
 232
 233 static RPC_STATUS rpcrt4_ncalrpc_open(RpcConnection* Connection)
 234 {
 235   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 236   static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
 237   RPC_STATUS r;
 238   LPSTR pname;
 239
 240   /* already connected? */
 241   if (npc->pipe)
 242     return RPC_S_OK;
 243
 244   /* protseq=ncalrpc: supposed to use NT LPC ports,
 245    * but we'll implement it with named pipes for now */
 246   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 247   strcat(strcpy(pname, prefix), Connection->Endpoint);
 248   r = rpcrt4_conn_open_pipe(Connection, pname, TRUE);
 249   I_RpcFree(pname);
 250
 251   return r;
 252 }
 253
 254 static RPC_STATUS rpcrt4_protseq_ncalrpc_open_endpoint(RpcServerProtseq* protseq, LPSTR endpoint)
 255 {
 256   static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
 257   RPC_STATUS r;
 258   LPSTR pname;
 259   RpcConnection *Connection;
 260
 261   r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
 262                               endpoint, NULL, NULL, NULL);
 263   if (r != RPC_S_OK)
 264       return r;
 265
 266   /* protseq=ncalrpc: supposed to use NT LPC ports,
 267    * but we'll implement it with named pipes for now */
 268   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 269   strcat(strcpy(pname, prefix), Connection->Endpoint);
 270   r = rpcrt4_conn_create_pipe(Connection, pname);
 271   I_RpcFree(pname);
 272
 273   EnterCriticalSection(&protseq->cs);
 274   Connection->Next = protseq->conn;
 275   protseq->conn = Connection;
 276   LeaveCriticalSection(&protseq->cs);
 277
 278   return r;
 279 }
 280
 281 static RPC_STATUS rpcrt4_ncacn_np_open(RpcConnection* Connection)
 282 {
 283   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 284   static const char prefix[] = "\\\\.";
 285   RPC_STATUS r;
 286   LPSTR pname;
 287
 288   /* already connected? */
 289   if (npc->pipe)
 290     return RPC_S_OK;
 291
 292   /* protseq=ncacn_np: named pipes */
 293   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 294   strcat(strcpy(pname, prefix), Connection->Endpoint);
 295   r = rpcrt4_conn_open_pipe(Connection, pname, FALSE);
 296   I_RpcFree(pname);
 297
 298   return r;
 299 }
 300
 301 static RPC_STATUS rpcrt4_protseq_ncacn_np_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
 302 {
 303   static const char prefix[] = "\\\\.";
 304   RPC_STATUS r;
 305   LPSTR pname;
 306   RpcConnection *Connection;
 307
 308   r = RPCRT4_CreateConnection(&Connection, TRUE, protseq->Protseq, NULL,
 309                               endpoint, NULL, NULL, NULL);
 310   if (r != RPC_S_OK)
 311     return r;
 312
 313   /* protseq=ncacn_np: named pipes */
 314   pname = I_RpcAllocate(strlen(prefix) + strlen(Connection->Endpoint) + 1);
 315   strcat(strcpy(pname, prefix), Connection->Endpoint);
 316   r = rpcrt4_conn_create_pipe(Connection, pname);
 317   I_RpcFree(pname);
 318
 319   EnterCriticalSection(&protseq->cs);
 320   Connection->Next = protseq->conn;
 321   protseq->conn = Connection;
 322   LeaveCriticalSection(&protseq->cs);
 323
 324   return r;
 325 }
 326
 327 static void rpcrt4_conn_np_handoff(RpcConnection_np *old_npc, RpcConnection_np *new_npc)
 328 {
 329   /* because of the way named pipes work, we'll transfer the connected pipe
 330    * to the child, then reopen the server binding to continue listening */
 331
 332   new_npc->pipe = old_npc->pipe;
 333   new_npc->ovl = old_npc->ovl;
 334   old_npc->pipe = 0;
 335   memset(&old_npc->ovl, 0, sizeof(old_npc->ovl));
 336   old_npc->listening = FALSE;
 337 }
 338
 339 static RPC_STATUS rpcrt4_ncacn_np_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
 340 {
 341   RPC_STATUS status;
 342   LPSTR pname;
 343   static const char prefix[] = "\\\\.";
 344
 345   rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
 346
 347   pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
 348   strcat(strcpy(pname, prefix), old_conn->Endpoint);
 349   status = rpcrt4_conn_create_pipe(old_conn, pname);
 350   I_RpcFree(pname);
 351
 352   return status;
 353 }
 354
 355 static RPC_STATUS rpcrt4_ncalrpc_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
 356 {
 357   RPC_STATUS status;
 358   LPSTR pname;
 359   static const char prefix[] = "\\\\.\\pipe\\lrpc\\";
 360
 361   TRACE("%s\n", old_conn->Endpoint);
 362
 363   rpcrt4_conn_np_handoff((RpcConnection_np *)old_conn, (RpcConnection_np *)new_conn);
 364
 365   pname = I_RpcAllocate(strlen(prefix) + strlen(old_conn->Endpoint) + 1);
 366   strcat(strcpy(pname, prefix), old_conn->Endpoint);
 367   status = rpcrt4_conn_create_pipe(old_conn, pname);
 368   I_RpcFree(pname);
 369
 370   return status;
 371 }
 372
 373 static int rpcrt4_conn_np_read(RpcConnection *Connection,
 374                         void *buffer, unsigned int count)
 375 {
 376   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 377   char *buf = buffer;
 378   BOOL ret = TRUE;
 379   unsigned int bytes_left = count;
 380
 381   while (bytes_left)
 382   {
 383     DWORD bytes_read;
 384     ret = ReadFile(npc->pipe, buf, bytes_left, &bytes_read, NULL);
 385     if (!ret || !bytes_read)
 386         break;
 387     bytes_left -= bytes_read;
 388     buf += bytes_read;
 389   }
 390   return ret ? count : -1;
 391 }
 392
 393 static int rpcrt4_conn_np_write(RpcConnection *Connection,
 394                              const void *buffer, unsigned int count)
 395 {
 396   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 397   const char *buf = buffer;
 398   BOOL ret = TRUE;
 399   unsigned int bytes_left = count;
 400
 401   while (bytes_left)
 402   {
 403     DWORD bytes_written;
 404     ret = WriteFile(npc->pipe, buf, bytes_left, &bytes_written, NULL);
 405     if (!ret || !bytes_written)
 406         break;
 407     bytes_left -= bytes_written;
 408     buf += bytes_written;
 409   }
 410   return ret ? count : -1;
 411 }
 412
 413 static int rpcrt4_conn_np_close(RpcConnection *Connection)
 414 {
 415   RpcConnection_np *npc = (RpcConnection_np *) Connection;
 416   if (npc->pipe) {
 417     FlushFileBuffers(npc->pipe);
 418     CloseHandle(npc->pipe);
 419     npc->pipe = 0;
 420   }
 421   if (npc->ovl.hEvent) {
 422     CloseHandle(npc->ovl.hEvent);
 423     npc->ovl.hEvent = 0;
 424   }
 425   return 0;
 426 }
 427
 428 static void rpcrt4_conn_np_cancel_call(RpcConnection *Connection)
 429 {
 430     /* FIXME: implement when named pipe writes use overlapped I/O */
 431 }
 432
 433 static int rpcrt4_conn_np_wait_for_incoming_data(RpcConnection *Connection)
 434 {
 435     /* FIXME: implement when named pipe writes use overlapped I/O */
 436     return -1;
 437 }
 438
 439 static size_t rpcrt4_ncacn_np_get_top_of_tower(unsigned char *tower_data,
 440                                                const char *networkaddr,
 441                                                const char *endpoint)
 442 {
 443     twr_empty_floor_t *smb_floor;
 444     twr_empty_floor_t *nb_floor;
 445     size_t size;
 446     size_t networkaddr_size;
 447     size_t endpoint_size;
 448
 449     TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
 450
 451     networkaddr_size = networkaddr ? strlen(networkaddr) + 1 : 1;
 452     endpoint_size = endpoint ? strlen(endpoint) + 1 : 1;
 453     size = sizeof(*smb_floor) + endpoint_size + sizeof(*nb_floor) + networkaddr_size;
 454
 455     if (!tower_data)
 456         return size;
 457
 458     smb_floor = (twr_empty_floor_t *)tower_data;
 459
 460     tower_data += sizeof(*smb_floor);
 461
 462     smb_floor->count_lhs = sizeof(smb_floor->protid);
 463     smb_floor->protid = EPM_PROTOCOL_SMB;
 464     smb_floor->count_rhs = endpoint_size;
 465
 466     if (endpoint)
 467         memcpy(tower_data, endpoint, endpoint_size);
 468     else
 469         tower_data[0] = 0;
 470     tower_data += endpoint_size;
 471
 472     nb_floor = (twr_empty_floor_t *)tower_data;
 473
 474     tower_data += sizeof(*nb_floor);
 475
 476     nb_floor->count_lhs = sizeof(nb_floor->protid);
 477     nb_floor->protid = EPM_PROTOCOL_NETBIOS;
 478     nb_floor->count_rhs = networkaddr_size;
 479
 480     if (networkaddr)
 481         memcpy(tower_data, networkaddr, networkaddr_size);
 482     else
 483         tower_data[0] = 0;
 484
 485     return size;
 486 }
 487
 488 static RPC_STATUS rpcrt4_ncacn_np_parse_top_of_tower(const unsigned char *tower_data,
 489                                                      size_t tower_size,
 490                                                      char **networkaddr,
 491                                                      char **endpoint)
 492 {
 493     const twr_empty_floor_t *smb_floor = (const twr_empty_floor_t *)tower_data;
 494     const twr_empty_floor_t *nb_floor;
 495
 496     TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
 497
 498     if (tower_size < sizeof(*smb_floor))
 499         return EPT_S_NOT_REGISTERED;
 500
 501     tower_data += sizeof(*smb_floor);
 502     tower_size -= sizeof(*smb_floor);
 503
 504     if ((smb_floor->count_lhs != sizeof(smb_floor->protid)) ||
 505         (smb_floor->protid != EPM_PROTOCOL_SMB) ||
 506         (smb_floor->count_rhs > tower_size) ||
 507         (tower_data[smb_floor->count_rhs - 1] != '\0'))
 508         return EPT_S_NOT_REGISTERED;
 509
 510     if (endpoint)
 511     {
 512         *endpoint = I_RpcAllocate(smb_floor->count_rhs);
 513         if (!*endpoint)
 514             return RPC_S_OUT_OF_RESOURCES;
 515         memcpy(*endpoint, tower_data, smb_floor->count_rhs);
 516     }
 517     tower_data += smb_floor->count_rhs;
 518     tower_size -= smb_floor->count_rhs;
 519
 520     if (tower_size < sizeof(*nb_floor))
 521         return EPT_S_NOT_REGISTERED;
 522
 523     nb_floor = (const twr_empty_floor_t *)tower_data;
 524
 525     tower_data += sizeof(*nb_floor);
 526     tower_size -= sizeof(*nb_floor);
 527
 528     if ((nb_floor->count_lhs != sizeof(nb_floor->protid)) ||
 529         (nb_floor->protid != EPM_PROTOCOL_NETBIOS) ||
 530         (nb_floor->count_rhs > tower_size) ||
 531         (tower_data[nb_floor->count_rhs - 1] != '\0'))
 532         return EPT_S_NOT_REGISTERED;
 533
 534     if (networkaddr)
 535     {
 536         *networkaddr = I_RpcAllocate(nb_floor->count_rhs);
 537         if (!*networkaddr)
 538         {
 539             if (endpoint)
 540             {
 541                 I_RpcFree(*endpoint);
 542                 *endpoint = NULL;
 543             }
 544             return RPC_S_OUT_OF_RESOURCES;
 545         }
 546         memcpy(*networkaddr, tower_data, nb_floor->count_rhs);
 547     }
 548
 549     return RPC_S_OK;
 550 }
 551
 552 typedef struct _RpcServerProtseq_np
 553 {
 554     RpcServerProtseq common;
 555     HANDLE mgr_event;
 556 } RpcServerProtseq_np;
 557
 558 static RpcServerProtseq *rpcrt4_protseq_np_alloc(void)
 559 {
 560     RpcServerProtseq_np *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
 561     if (ps)
 562         ps->mgr_event = CreateEventW(NULL, FALSE, FALSE, NULL);
 563     return &ps->common;
 564 }
 565
 566 static void rpcrt4_protseq_np_signal_state_changed(RpcServerProtseq *protseq)
 567 {
 568     RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
 569     SetEvent(npps->mgr_event);
 570 }
 571
 572 static void *rpcrt4_protseq_np_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
 573 {
 574     HANDLE *objs = prev_array;
 575     RpcConnection_np *conn;
 576     RpcServerProtseq_np *npps = CONTAINING_RECORD(protseq, RpcServerProtseq_np, common);
 577
 578     EnterCriticalSection(&protseq->cs);
 579
 580     /* open and count connections */
 581     *count = 1;
 582     conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
 583     while (conn) {
 584         rpcrt4_conn_listen_pipe(conn);
 585         if (conn->ovl.hEvent)
 586             (*count)++;
 587         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
 588     }
 589
 590     /* make array of connections */
 591     if (objs)
 592         objs = HeapReAlloc(GetProcessHeap(), 0, objs, *count*sizeof(HANDLE));
 593     else
 594         objs = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(HANDLE));
 595     if (!objs)
 596     {
 597         ERR("couldn't allocate objs\n");
 598         LeaveCriticalSection(&protseq->cs);
 599         return NULL;
 600     }
 601
 602     objs[0] = npps->mgr_event;
 603     *count = 1;
 604     conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
 605     while (conn) {
 606         if ((objs[*count] = conn->ovl.hEvent))
 607             (*count)++;
 608         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
 609     }
 610     LeaveCriticalSection(&protseq->cs);
 611     return objs;
 612 }
 613
 614 static void rpcrt4_protseq_np_free_wait_array(RpcServerProtseq *protseq, void *array)
 615 {
 616     HeapFree(GetProcessHeap(), 0, array);
 617 }
 618
 619 static int rpcrt4_protseq_np_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
 620 {
 621     HANDLE b_handle;
 622     HANDLE *objs = wait_array;
 623     DWORD res;
 624     RpcConnection *cconn;
 625     RpcConnection_np *conn;
 626
 627     if (!objs)
 628         return -1;
 629
 630     do
 631     {
 632         /* an alertable wait isn't strictly necessary, but due to our
 633          * overlapped I/O implementation in Wine we need to free some memory
 634          * by the file user APC being called, even if no completion routine was
 635          * specified at the time of starting the async operation */
 636         res = WaitForMultipleObjectsEx(count, objs, FALSE, INFINITE, TRUE);
 637     } while (res == WAIT_IO_COMPLETION);
 638
 639     if (res == WAIT_OBJECT_0)
 640         return 0;
 641     else if (res == WAIT_FAILED)
 642     {
 643         ERR("wait failed with error %d\n", GetLastError());
 644         return -1;
 645     }
 646     else
 647     {
 648         b_handle = objs[res - WAIT_OBJECT_0];
 649         /* find which connection got a RPC */
 650         EnterCriticalSection(&protseq->cs);
 651         conn = CONTAINING_RECORD(protseq->conn, RpcConnection_np, common);
 652         while (conn) {
 653             if (b_handle == conn->ovl.hEvent) break;
 654             conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_np, common);
 655         }
 656         cconn = NULL;
 657         if (conn)
 658             RPCRT4_SpawnConnection(&cconn, &conn->common);
 659         else
 660             ERR("failed to locate connection for handle %p\n", b_handle);
 661         LeaveCriticalSection(&protseq->cs);
 662         if (cconn)
 663         {
 664             RPCRT4_new_client(cconn);
 665             return 1;
 666         }
 667         else return -1;
 668     }
 669 }
 670
 671 static size_t rpcrt4_ncalrpc_get_top_of_tower(unsigned char *tower_data,
 672                                               const char *networkaddr,
 673                                               const char *endpoint)
 674 {
 675     twr_empty_floor_t *pipe_floor;
 676     size_t size;
 677     size_t endpoint_size;
 678
 679     TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
 680
 681     endpoint_size = strlen(endpoint) + 1;
 682     size = sizeof(*pipe_floor) + endpoint_size;
 683
 684     if (!tower_data)
 685         return size;
 686
 687     pipe_floor = (twr_empty_floor_t *)tower_data;
 688
 689     tower_data += sizeof(*pipe_floor);
 690
 691     pipe_floor->count_lhs = sizeof(pipe_floor->protid);
 692     pipe_floor->protid = EPM_PROTOCOL_PIPE;
 693     pipe_floor->count_rhs = endpoint_size;
 694
 695     memcpy(tower_data, endpoint, endpoint_size);
 696
 697     return size;
 698 }
 699
 700 static RPC_STATUS rpcrt4_ncalrpc_parse_top_of_tower(const unsigned char *tower_data,
 701                                                     size_t tower_size,
 702                                                     char **networkaddr,
 703                                                     char **endpoint)
 704 {
 705     const twr_empty_floor_t *pipe_floor = (const twr_empty_floor_t *)tower_data;
 706
 707     TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
 708
 709     if (tower_size < sizeof(*pipe_floor))
 710         return EPT_S_NOT_REGISTERED;
 711
 712     tower_data += sizeof(*pipe_floor);
 713     tower_size -= sizeof(*pipe_floor);
 714
 715     if ((pipe_floor->count_lhs != sizeof(pipe_floor->protid)) ||
 716         (pipe_floor->protid != EPM_PROTOCOL_PIPE) ||
 717         (pipe_floor->count_rhs > tower_size) ||
 718         (tower_data[pipe_floor->count_rhs - 1] != '\0'))
 719         return EPT_S_NOT_REGISTERED;
 720
 721     if (networkaddr)
 722         *networkaddr = NULL;
 723
 724     if (endpoint)
 725     {
 726         *endpoint = I_RpcAllocate(pipe_floor->count_rhs);
 727         if (!*endpoint)
 728             return RPC_S_OUT_OF_RESOURCES;
 729         memcpy(*endpoint, tower_data, pipe_floor->count_rhs);
 730     }
 731
 732     return RPC_S_OK;
 733 }
 734
 735 /**** ncacn_ip_tcp support ****/
 736
 737 #ifdef HAVE_SOCKETPAIR
 738
 739 typedef struct _RpcConnection_tcp
 740 {
 741   RpcConnection common;
 742   int sock;
 743   int cancel_fds[2];
 744 } RpcConnection_tcp;
 745
 746 static RpcConnection *rpcrt4_conn_tcp_alloc(void)
 747 {
 748   RpcConnection_tcp *tcpc;
 749   tcpc = HeapAlloc(GetProcessHeap(), 0, sizeof(RpcConnection_tcp));
 750   if (tcpc == NULL)
 751     return NULL;
 752   tcpc->sock = -1;
 753   if (socketpair(PF_UNIX, SOCK_STREAM, 0, tcpc->cancel_fds) < 0)
 754   {
 755     ERR("socketpair() failed: %s\n", strerror(errno));
 756     HeapFree(GetProcessHeap(), 0, tcpc);
 757     return NULL;
 758   }
 759   return &tcpc->common;
 760 }
 761
 762 static RPC_STATUS rpcrt4_ncacn_ip_tcp_open(RpcConnection* Connection)
 763 {
 764   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
 765   int sock;
 766   int ret;
 767   struct addrinfo *ai;
 768   struct addrinfo *ai_cur;
 769   struct addrinfo hints;
 770
 771   TRACE("(%s, %s)\n", Connection->NetworkAddr, Connection->Endpoint);
 772
 773   if (tcpc->sock != -1)
 774     return RPC_S_OK;
 775
 776   hints.ai_flags          = 0;
 777   hints.ai_family         = PF_UNSPEC;
 778   hints.ai_socktype       = SOCK_STREAM;
 779   hints.ai_protocol       = IPPROTO_TCP;
 780   hints.ai_addrlen        = 0;
 781   hints.ai_addr           = NULL;
 782   hints.ai_canonname      = NULL;
 783   hints.ai_next           = NULL;
 784
 785   ret = getaddrinfo(Connection->NetworkAddr, Connection->Endpoint, &hints, &ai);
 786   if (ret)
 787   {
 788     ERR("getaddrinfo for %s:%s failed: %s\n", Connection->NetworkAddr,
 789       Connection->Endpoint, gai_strerror(ret));
 790     return RPC_S_SERVER_UNAVAILABLE;
 791   }
 792
 793   for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
 794   {
 795     int val;
 796
 797     if (TRACE_ON(rpc))
 798     {
 799       char host[256];
 800       char service[256];
 801       getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
 802         host, sizeof(host), service, sizeof(service),
 803         NI_NUMERICHOST | NI_NUMERICSERV);
 804       TRACE("trying %s:%s\n", host, service);
 805     }
 806
 807     sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
 808     if (sock == -1)
 809     {
 810       WARN("socket() failed: %s\n", strerror(errno));
 811       continue;
 812     }
 813
 814     if (0>connect(sock, ai_cur->ai_addr, ai_cur->ai_addrlen))
 815     {
 816       WARN("connect() failed: %s\n", strerror(errno));
 817       closesocket(sock);
 818       continue;
 819     }
 820
 821     /* RPC depends on having minimal latency so disable the Nagle algorithm */
 822     val = 1;
 823     setsockopt(sock, SOL_TCP, TCP_NODELAY, &val, sizeof(val));
 824     fcntl(sock, F_SETFL, O_NONBLOCK); /* make socket nonblocking */
 825
 826     tcpc->sock = sock;
 827
 828     freeaddrinfo(ai);
 829     TRACE("connected\n");
 830     return RPC_S_OK;
 831   }
 832
 833   freeaddrinfo(ai);
 834   ERR("couldn't connect to %s:%s\n", Connection->NetworkAddr, Connection->Endpoint);
 835   return RPC_S_SERVER_UNAVAILABLE;
 836 }
 837
 838 static RPC_STATUS rpcrt4_protseq_ncacn_ip_tcp_open_endpoint(RpcServerProtseq *protseq, LPSTR endpoint)
 839 {
 840     RPC_STATUS status = RPC_S_CANT_CREATE_ENDPOINT;
 841     int sock;
 842     int ret;
 843     struct addrinfo *ai;
 844     struct addrinfo *ai_cur;
 845     struct addrinfo hints;
 846     RpcConnection *first_connection = NULL;
 847
 848     TRACE("(%p, %s)\n", protseq, endpoint);
 849
 850     hints.ai_flags          = AI_PASSIVE /* for non-localhost addresses */;
 851     hints.ai_family         = PF_UNSPEC;
 852     hints.ai_socktype       = SOCK_STREAM;
 853     hints.ai_protocol       = IPPROTO_TCP;
 854     hints.ai_addrlen        = 0;
 855     hints.ai_addr           = NULL;
 856     hints.ai_canonname      = NULL;
 857     hints.ai_next           = NULL;
 858
 859     ret = getaddrinfo(NULL, endpoint, &hints, &ai);
 860     if (ret)
 861     {
 862         ERR("getaddrinfo for port %s failed: %s\n", endpoint,
 863             gai_strerror(ret));
 864         if ((ret == EAI_SERVICE) || (ret == EAI_NONAME))
 865             return RPC_S_INVALID_ENDPOINT_FORMAT;
 866         return RPC_S_CANT_CREATE_ENDPOINT;
 867     }
 868
 869     for (ai_cur = ai; ai_cur; ai_cur = ai_cur->ai_next)
 870     {
 871         RpcConnection_tcp *tcpc;
 872         RPC_STATUS create_status;
 873
 874         if (TRACE_ON(rpc))
 875         {
 876             char host[256];
 877             char service[256];
 878             getnameinfo(ai_cur->ai_addr, ai_cur->ai_addrlen,
 879                         host, sizeof(host), service, sizeof(service),
 880                         NI_NUMERICHOST | NI_NUMERICSERV);
 881             TRACE("trying %s:%s\n", host, service);
 882         }
 883
 884         sock = socket(ai_cur->ai_family, ai_cur->ai_socktype, ai_cur->ai_protocol);
 885         if (sock == -1)
 886         {
 887             WARN("socket() failed: %s\n", strerror(errno));
 888             status = RPC_S_CANT_CREATE_ENDPOINT;
 889             continue;
 890         }
 891
 892         ret = bind(sock, ai_cur->ai_addr, ai_cur->ai_addrlen);
 893         if (ret < 0)
 894         {
 895             WARN("bind failed: %s\n", strerror(errno));
 896             closesocket(sock);
 897             if (errno == EADDRINUSE)
 898               status = RPC_S_DUPLICATE_ENDPOINT;
 899             else
 900               status = RPC_S_CANT_CREATE_ENDPOINT;
 901             continue;
 902         }
 903         create_status = RPCRT4_CreateConnection((RpcConnection **)&tcpc, TRUE,
 904                                                 protseq->Protseq, NULL,
 905                                                 endpoint, NULL, NULL, NULL);
 906         if (create_status != RPC_S_OK)
 907         {
 908             closesocket(sock);
 909             status = create_status;
 910             continue;
 911         }
 912
 913         tcpc->sock = sock;
 914         ret = listen(sock, protseq->MaxCalls);
 915         if (ret < 0)
 916         {
 917             WARN("listen failed: %s\n", strerror(errno));
 918             RPCRT4_DestroyConnection(&tcpc->common);
 919             status = RPC_S_OUT_OF_RESOURCES;
 920             continue;
 921         }
 922         /* need a non-blocking socket, otherwise accept() has a potential
 923          * race-condition (poll() says it is readable, connection drops,
 924          * and accept() blocks until the next connection comes...)
 925          */
 926         ret = fcntl(sock, F_SETFL, O_NONBLOCK);
 927         if (ret < 0)
 928         {
 929             WARN("couldn't make socket non-blocking, error %d\n", ret);
 930             RPCRT4_DestroyConnection(&tcpc->common);
 931             status = RPC_S_OUT_OF_RESOURCES;
 932             continue;
 933         }
 934
 935         tcpc->common.Next = first_connection;
 936         first_connection = &tcpc->common;
 937     }
 938
 939     freeaddrinfo(ai);
 940
 941     /* if at least one connection was created for an endpoint then
 942      * return success */
 943     if (first_connection)
 944     {
 945         RpcConnection *conn;
 946
 947         /* find last element in list */
 948         for (conn = first_connection; conn->Next; conn = conn->Next)
 949             ;
 950
 951         EnterCriticalSection(&protseq->cs);
 952         conn->Next = protseq->conn;
 953         protseq->conn = first_connection;
 954         LeaveCriticalSection(&protseq->cs);
 955
 956         TRACE("listening on %s\n", endpoint);
 957         return RPC_S_OK;
 958     }
 959
 960     ERR("couldn't listen on port %s\n", endpoint);
 961     return status;
 962 }
 963
 964 static RPC_STATUS rpcrt4_conn_tcp_handoff(RpcConnection *old_conn, RpcConnection *new_conn)
 965 {
 966   int ret;
 967   struct sockaddr_in address;
 968   socklen_t addrsize;
 969   RpcConnection_tcp *server = (RpcConnection_tcp*) old_conn;
 970   RpcConnection_tcp *client = (RpcConnection_tcp*) new_conn;
 971
 972   addrsize = sizeof(address);
 973   ret = accept(server->sock, (struct sockaddr*) &address, &addrsize);
 974   if (ret < 0)
 975   {
 976     ERR("Failed to accept a TCP connection: error %d\n", ret);
 977     return RPC_S_OUT_OF_RESOURCES;
 978   }
 979   /* reset to blocking behaviour */
 980   fcntl(ret, F_SETFL, 0);
 981   client->sock = ret;
 982   TRACE("Accepted a new TCP connection\n");
 983   return RPC_S_OK;
 984 }
 985
 986 static int rpcrt4_conn_tcp_read(RpcConnection *Connection,
 987                                 void *buffer, unsigned int count)
 988 {
 989   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
 990   int bytes_read = 0;
 991   do
 992   {
 993     int r = recv(tcpc->sock, (char *)buffer + bytes_read, count - bytes_read, 0);
 994     if (!r)
 995       return -1;
 996     else if (r > 0)
 997       bytes_read += r;
 998     else if (errno != EAGAIN)
 999     {
1000       WARN("recv() failed: %s\n", strerror(errno));
1001       return -1;
1002     }
1003     else
1004     {
1005       struct pollfd pfds[2];
1006       pfds[0].fd = tcpc->sock;
1007       pfds[0].events = POLLIN;
1008       pfds[1].fd = tcpc->cancel_fds[0];
1009       pfds[1].events = POLLIN;
1010       if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1011       {
1012         ERR("poll() failed: %s\n", strerror(errno));
1013         return -1;
1014       }
1015       if (pfds[1].revents & POLLIN) /* canceled */
1016       {
1017         char dummy;
1018         read(pfds[1].fd, &dummy, sizeof(dummy));
1019         return -1;
1020       }
1021     }
1022   } while (bytes_read != count);
1023   TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_read);
1024   return bytes_read;
1025 }
1026
1027 static int rpcrt4_conn_tcp_write(RpcConnection *Connection,
1028                                  const void *buffer, unsigned int count)
1029 {
1030   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1031   int bytes_written = 0;
1032   do
1033   {
1034     int r = send(tcpc->sock, (const char *)buffer + bytes_written, count - bytes_written, 0);
1035     if (r >= 0)
1036       bytes_written += r;
1037     else if (errno != EAGAIN)
1038       return -1;
1039     else
1040     {
1041       struct pollfd pfd;
1042       pfd.fd = tcpc->sock;
1043       pfd.events = POLLOUT;
1044       if (poll(&pfd, 1, -1 /* infinite */) == -1 && errno != EINTR)
1045       {
1046         ERR("poll() failed: %s\n", strerror(errno));
1047         return -1;
1048       }
1049     }
1050   } while (bytes_written != count);
1051   TRACE("%d %p %u -> %d\n", tcpc->sock, buffer, count, bytes_written);
1052   return bytes_written;
1053 }
1054
1055 static int rpcrt4_conn_tcp_close(RpcConnection *Connection)
1056 {
1057   RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1058
1059   TRACE("%d\n", tcpc->sock);
1060
1061   if (tcpc->sock != -1)
1062     closesocket(tcpc->sock);
1063   tcpc->sock = -1;
1064   close(tcpc->cancel_fds[0]);
1065   close(tcpc->cancel_fds[1]);
1066   return 0;
1067 }
1068
1069 static void rpcrt4_conn_tcp_cancel_call(RpcConnection *Connection)
1070 {
1071     RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1072     char dummy = 1;
1073
1074     TRACE("%p\n", Connection);
1075
1076     write(tcpc->cancel_fds[1], &dummy, 1);
1077 }
1078
1079 static int rpcrt4_conn_tcp_wait_for_incoming_data(RpcConnection *Connection)
1080 {
1081     RpcConnection_tcp *tcpc = (RpcConnection_tcp *) Connection;
1082     struct pollfd pfds[2];
1083
1084     TRACE("%p\n", Connection);
1085
1086     pfds[0].fd = tcpc->sock;
1087     pfds[0].events = POLLIN;
1088     pfds[1].fd = tcpc->cancel_fds[0];
1089     pfds[1].events = POLLIN;
1090     if (poll(pfds, 2, -1 /* infinite */) == -1 && errno != EINTR)
1091     {
1092       ERR("poll() failed: %s\n", strerror(errno));
1093       return -1;
1094     }
1095     if (pfds[1].revents & POLLIN) /* canceled */
1096     {
1097       char dummy;
1098       read(pfds[1].fd, &dummy, sizeof(dummy));
1099       return -1;
1100     }
1101
1102     return 0;
1103 }
1104
1105 static size_t rpcrt4_ncacn_ip_tcp_get_top_of_tower(unsigned char *tower_data,
1106                                                    const char *networkaddr,
1107                                                    const char *endpoint)
1108 {
1109     twr_tcp_floor_t *tcp_floor;
1110     twr_ipv4_floor_t *ipv4_floor;
1111     struct addrinfo *ai;
1112     struct addrinfo hints;
1113     int ret;
1114     size_t size = sizeof(*tcp_floor) + sizeof(*ipv4_floor);
1115
1116     TRACE("(%p, %s, %s)\n", tower_data, networkaddr, endpoint);
1117
1118     if (!tower_data)
1119         return size;
1120
1121     tcp_floor = (twr_tcp_floor_t *)tower_data;
1122     tower_data += sizeof(*tcp_floor);
1123
1124     ipv4_floor = (twr_ipv4_floor_t *)tower_data;
1125
1126     tcp_floor->count_lhs = sizeof(tcp_floor->protid);
1127     tcp_floor->protid = EPM_PROTOCOL_TCP;
1128     tcp_floor->count_rhs = sizeof(tcp_floor->port);
1129
1130     ipv4_floor->count_lhs = sizeof(ipv4_floor->protid);
1131     ipv4_floor->protid = EPM_PROTOCOL_IP;
1132     ipv4_floor->count_rhs = sizeof(ipv4_floor->ipv4addr);
1133
1134     hints.ai_flags          = AI_NUMERICHOST;
1135     /* FIXME: only support IPv4 at the moment. how is IPv6 represented by the EPM? */
1136     hints.ai_family         = PF_INET;
1137     hints.ai_socktype       = SOCK_STREAM;
1138     hints.ai_protocol       = IPPROTO_TCP;
1139     hints.ai_addrlen        = 0;
1140     hints.ai_addr           = NULL;
1141     hints.ai_canonname      = NULL;
1142     hints.ai_next           = NULL;
1143
1144     ret = getaddrinfo(networkaddr, endpoint, &hints, &ai);
1145     if (ret)
1146     {
1147         ret = getaddrinfo("0.0.0.0", endpoint, &hints, &ai);
1148         if (ret)
1149         {
1150             ERR("getaddrinfo failed: %s\n", gai_strerror(ret));
1151             return 0;
1152         }
1153     }
1154
1155     if (ai->ai_family == PF_INET)
1156     {
1157         const struct sockaddr_in *sin = (const struct sockaddr_in *)ai->ai_addr;
1158         tcp_floor->port = sin->sin_port;
1159         ipv4_floor->ipv4addr = sin->sin_addr.s_addr;
1160     }
1161     else
1162     {
1163         ERR("unexpected protocol family %d\n", ai->ai_family);
1164         return 0;
1165     }
1166
1167     freeaddrinfo(ai);
1168
1169     return size;
1170 }
1171
1172 static RPC_STATUS rpcrt4_ncacn_ip_tcp_parse_top_of_tower(const unsigned char *tower_data,
1173                                                          size_t tower_size,
1174                                                          char **networkaddr,
1175                                                          char **endpoint)
1176 {
1177     const twr_tcp_floor_t *tcp_floor = (const twr_tcp_floor_t *)tower_data;
1178     const twr_ipv4_floor_t *ipv4_floor;
1179     struct in_addr in_addr;
1180
1181     TRACE("(%p, %d, %p, %p)\n", tower_data, (int)tower_size, networkaddr, endpoint);
1182
1183     if (tower_size < sizeof(*tcp_floor))
1184         return EPT_S_NOT_REGISTERED;
1185
1186     tower_data += sizeof(*tcp_floor);
1187     tower_size -= sizeof(*tcp_floor);
1188
1189     if (tower_size < sizeof(*ipv4_floor))
1190         return EPT_S_NOT_REGISTERED;
1191
1192     ipv4_floor = (const twr_ipv4_floor_t *)tower_data;
1193
1194     if ((tcp_floor->count_lhs != sizeof(tcp_floor->protid)) ||
1195         (tcp_floor->protid != EPM_PROTOCOL_TCP) ||
1196         (tcp_floor->count_rhs != sizeof(tcp_floor->port)) ||
1197         (ipv4_floor->count_lhs != sizeof(ipv4_floor->protid)) ||
1198         (ipv4_floor->protid != EPM_PROTOCOL_IP) ||
1199         (ipv4_floor->count_rhs != sizeof(ipv4_floor->ipv4addr)))
1200         return EPT_S_NOT_REGISTERED;
1201
1202     if (endpoint)
1203     {
1204         *endpoint = I_RpcAllocate(6 /* sizeof("65535") + 1 */);
1205         if (!*endpoint)
1206             return RPC_S_OUT_OF_RESOURCES;
1207         sprintf(*endpoint, "%u", ntohs(tcp_floor->port));
1208     }
1209
1210     if (networkaddr)
1211     {
1212         *networkaddr = I_RpcAllocate(INET_ADDRSTRLEN);
1213         if (!*networkaddr)
1214         {
1215             if (endpoint)
1216             {
1217                 I_RpcFree(*endpoint);
1218                 *endpoint = NULL;
1219             }
1220             return RPC_S_OUT_OF_RESOURCES;
1221         }
1222         in_addr.s_addr = ipv4_floor->ipv4addr;
1223         if (!inet_ntop(AF_INET, &in_addr, *networkaddr, INET_ADDRSTRLEN))
1224         {
1225             ERR("inet_ntop: %s\n", strerror(errno));
1226             I_RpcFree(*networkaddr);
1227             *networkaddr = NULL;
1228             if (endpoint)
1229             {
1230                 I_RpcFree(*endpoint);
1231                 *endpoint = NULL;
1232             }
1233             return EPT_S_NOT_REGISTERED;
1234         }
1235     }
1236
1237     return RPC_S_OK;
1238 }
1239
1240 typedef struct _RpcServerProtseq_sock
1241 {
1242     RpcServerProtseq common;
1243     int mgr_event_rcv;
1244     int mgr_event_snd;
1245 } RpcServerProtseq_sock;
1246
1247 static RpcServerProtseq *rpcrt4_protseq_sock_alloc(void)
1248 {
1249     RpcServerProtseq_sock *ps = HeapAlloc(GetProcessHeap(), 0, sizeof(*ps));
1250     if (ps)
1251     {
1252         int fds[2];
1253         if (!socketpair(PF_UNIX, SOCK_DGRAM, 0, fds))
1254         {
1255             fcntl(fds[0], F_SETFL, O_NONBLOCK);
1256             fcntl(fds[1], F_SETFL, O_NONBLOCK);
1257             ps->mgr_event_rcv = fds[0];
1258             ps->mgr_event_snd = fds[1];
1259         }
1260         else
1261         {
1262             ERR("socketpair failed with error %s\n", strerror(errno));
1263             HeapFree(GetProcessHeap(), 0, ps);
1264             return NULL;
1265         }
1266     }
1267     return &ps->common;
1268 }
1269
1270 static void rpcrt4_protseq_sock_signal_state_changed(RpcServerProtseq *protseq)
1271 {
1272     RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1273     char dummy = 1;
1274     write(sockps->mgr_event_snd, &dummy, sizeof(dummy));
1275 }
1276
1277 static void *rpcrt4_protseq_sock_get_wait_array(RpcServerProtseq *protseq, void *prev_array, unsigned int *count)
1278 {
1279     struct pollfd *poll_info = prev_array;
1280     RpcConnection_tcp *conn;
1281     RpcServerProtseq_sock *sockps = CONTAINING_RECORD(protseq, RpcServerProtseq_sock, common);
1282
1283     EnterCriticalSection(&protseq->cs);
1284
1285     /* open and count connections */
1286     *count = 1;
1287     conn = (RpcConnection_tcp *)protseq->conn;
1288     while (conn) {
1289         if (conn->sock != -1)
1290             (*count)++;
1291         conn = (RpcConnection_tcp *)conn->common.Next;
1292     }
1293
1294     /* make array of connections */
1295     if (poll_info)
1296         poll_info = HeapReAlloc(GetProcessHeap(), 0, poll_info, *count*sizeof(*poll_info));
1297     else
1298         poll_info = HeapAlloc(GetProcessHeap(), 0, *count*sizeof(*poll_info));
1299     if (!poll_info)
1300     {
1301         ERR("couldn't allocate poll_info\n");
1302         LeaveCriticalSection(&protseq->cs);
1303         return NULL;
1304     }
1305
1306     poll_info[0].fd = sockps->mgr_event_rcv;
1307     poll_info[0].events = POLLIN;
1308     *count = 1;
1309     conn =  CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1310     while (conn) {
1311         if (conn->sock != -1)
1312         {
1313             poll_info[*count].fd = conn->sock;
1314             poll_info[*count].events = POLLIN;
1315             (*count)++;
1316         }
1317         conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1318     }
1319     LeaveCriticalSection(&protseq->cs);
1320     return poll_info;
1321 }
1322
1323 static void rpcrt4_protseq_sock_free_wait_array(RpcServerProtseq *protseq, void *array)
1324 {
1325     HeapFree(GetProcessHeap(), 0, array);
1326 }
1327
1328 static int rpcrt4_protseq_sock_wait_for_new_connection(RpcServerProtseq *protseq, unsigned int count, void *wait_array)
1329 {
1330     struct pollfd *poll_info = wait_array;
1331     int ret;
1332     unsigned int i;
1333     RpcConnection *cconn;
1334     RpcConnection_tcp *conn;
1335
1336     if (!poll_info)
1337         return -1;
1338
1339     ret = poll(poll_info, count, -1);
1340     if (ret < 0)
1341     {
1342         ERR("poll failed with error %d\n", ret);
1343         return -1;
1344     }
1345
1346     for (i = 0; i < count; i++)
1347         if (poll_info[i].revents & POLLIN)
1348         {
1349             /* RPC server event */
1350             if (i == 0)
1351             {
1352                 char dummy;
1353                 read(poll_info[0].fd, &dummy, sizeof(dummy));
1354                 return 0;
1355             }
1356
1357             /* find which connection got a RPC */
1358             EnterCriticalSection(&protseq->cs);
1359             conn = CONTAINING_RECORD(protseq->conn, RpcConnection_tcp, common);
1360             while (conn) {
1361                 if (poll_info[i].fd == conn->sock) break;
1362                 conn = CONTAINING_RECORD(conn->common.Next, RpcConnection_tcp, common);
1363             }
1364             cconn = NULL;
1365             if (conn)
1366                 RPCRT4_SpawnConnection(&cconn, &conn->common);
1367             else
1368                 ERR("failed to locate connection for fd %d\n", poll_info[i].fd);
1369             LeaveCriticalSection(&protseq->cs);
1370             if (cconn)
1371                 RPCRT4_new_client(cconn);
1372             else
1373                 return -1;
1374         }
1375
1376     return 1;
1377 }
1378
1379 #endif  /* HAVE_SOCKETPAIR */
1380
1381 static const struct connection_ops conn_protseq_list[] = {
1382   { "ncacn_np",
1383     { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB },
1384     rpcrt4_conn_np_alloc,
1385     rpcrt4_ncacn_np_open,
1386     rpcrt4_ncacn_np_handoff,
1387     rpcrt4_conn_np_read,
1388     rpcrt4_conn_np_write,
1389     rpcrt4_conn_np_close,
1390     rpcrt4_conn_np_cancel_call,
1391     rpcrt4_conn_np_wait_for_incoming_data,
1392     rpcrt4_ncacn_np_get_top_of_tower,
1393     rpcrt4_ncacn_np_parse_top_of_tower,
1394   },
1395   { "ncalrpc",
1396     { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE },
1397     rpcrt4_conn_np_alloc,
1398     rpcrt4_ncalrpc_open,
1399     rpcrt4_ncalrpc_handoff,
1400     rpcrt4_conn_np_read,
1401     rpcrt4_conn_np_write,
1402     rpcrt4_conn_np_close,
1403     rpcrt4_conn_np_cancel_call,
1404     rpcrt4_conn_np_wait_for_incoming_data,
1405     rpcrt4_ncalrpc_get_top_of_tower,
1406     rpcrt4_ncalrpc_parse_top_of_tower,
1407   },
1408 #ifdef HAVE_SOCKETPAIR
1409   { "ncacn_ip_tcp",
1410     { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP },
1411     rpcrt4_conn_tcp_alloc,
1412     rpcrt4_ncacn_ip_tcp_open,
1413     rpcrt4_conn_tcp_handoff,
1414     rpcrt4_conn_tcp_read,
1415     rpcrt4_conn_tcp_write,
1416     rpcrt4_conn_tcp_close,
1417     rpcrt4_conn_tcp_cancel_call,
1418     rpcrt4_conn_tcp_wait_for_incoming_data,
1419     rpcrt4_ncacn_ip_tcp_get_top_of_tower,
1420     rpcrt4_ncacn_ip_tcp_parse_top_of_tower,
1421   }
1422 #endif
1423 };
1424
1425
1426 static const struct protseq_ops protseq_list[] =
1427 {
1428     {
1429         "ncacn_np",
1430         rpcrt4_protseq_np_alloc,
1431         rpcrt4_protseq_np_signal_state_changed,
1432         rpcrt4_protseq_np_get_wait_array,
1433         rpcrt4_protseq_np_free_wait_array,
1434         rpcrt4_protseq_np_wait_for_new_connection,
1435         rpcrt4_protseq_ncacn_np_open_endpoint,
1436     },
1437     {
1438         "ncalrpc",
1439         rpcrt4_protseq_np_alloc,
1440         rpcrt4_protseq_np_signal_state_changed,
1441         rpcrt4_protseq_np_get_wait_array,
1442         rpcrt4_protseq_np_free_wait_array,
1443         rpcrt4_protseq_np_wait_for_new_connection,
1444         rpcrt4_protseq_ncalrpc_open_endpoint,
1445     },
1446 #ifdef HAVE_SOCKETPAIR
1447     {
1448         "ncacn_ip_tcp",
1449         rpcrt4_protseq_sock_alloc,
1450         rpcrt4_protseq_sock_signal_state_changed,
1451         rpcrt4_protseq_sock_get_wait_array,
1452         rpcrt4_protseq_sock_free_wait_array,
1453         rpcrt4_protseq_sock_wait_for_new_connection,
1454         rpcrt4_protseq_ncacn_ip_tcp_open_endpoint,
1455     },
1456 #endif
1457 };
1458
1459 #define ARRAYSIZE(a) (sizeof((a)) / sizeof((a)[0]))
1460
1461 const struct protseq_ops *rpcrt4_get_protseq_ops(const char *protseq)
1462 {
1463   unsigned int i;
1464   for(i=0; i<ARRAYSIZE(protseq_list); i++)
1465     if (!strcmp(protseq_list[i].name, protseq))
1466       return &protseq_list[i];
1467   return NULL;
1468 }
1469
1470 static const struct connection_ops *rpcrt4_get_conn_protseq_ops(const char *protseq)
1471 {
1472     unsigned int i;
1473     for(i=0; i<ARRAYSIZE(conn_protseq_list); i++)
1474         if (!strcmp(conn_protseq_list[i].name, protseq))
1475             return &conn_protseq_list[i];
1476     return NULL;
1477 }
1478
1479 /**** interface to rest of code ****/
1480
1481 RPC_STATUS RPCRT4_OpenClientConnection(RpcConnection* Connection)
1482 {
1483   TRACE("(Connection == ^%p)\n", Connection);
1484
1485   assert(!Connection->server);
1486   return Connection->ops->open_connection_client(Connection);
1487 }
1488
1489 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
1490 {
1491   TRACE("(Connection == ^%p)\n", Connection);
1492   if (SecIsValidHandle(&Connection->ctx))
1493   {
1494     DeleteSecurityContext(&Connection->ctx);
1495     SecInvalidateHandle(&Connection->ctx);
1496   }
1497   rpcrt4_conn_close(Connection);
1498   return RPC_S_OK;
1499 }
1500
1501 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server,
1502     LPCSTR Protseq, LPCSTR NetworkAddr, LPCSTR Endpoint,
1503     LPCWSTR NetworkOptions, RpcAuthInfo* AuthInfo, RpcQualityOfService *QOS)
1504 {
1505   const struct connection_ops *ops;
1506   RpcConnection* NewConnection;
1507
1508   ops = rpcrt4_get_conn_protseq_ops(Protseq);
1509   if (!ops)
1510   {
1511     FIXME("not supported for protseq %s\n", Protseq);
1512     return RPC_S_PROTSEQ_NOT_SUPPORTED;
1513   }
1514
1515   NewConnection = ops->alloc();
1516   NewConnection->Next = NULL;
1517   NewConnection->server_binding = NULL;
1518   NewConnection->server = server;
1519   NewConnection->ops = ops;
1520   NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
1521   NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
1522   NewConnection->NetworkOptions = RPCRT4_strdupW(NetworkOptions);
1523   NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
1524   memset(&NewConnection->ActiveInterface, 0, sizeof(NewConnection->ActiveInterface));
1525   NewConnection->NextCallId = 1;
1526
1527   SecInvalidateHandle(&NewConnection->ctx);
1528   memset(&NewConnection->exp, 0, sizeof(NewConnection->exp));
1529   NewConnection->attr = 0;
1530   if (AuthInfo) RpcAuthInfo_AddRef(AuthInfo);
1531   NewConnection->AuthInfo = AuthInfo;
1532   NewConnection->encryption_auth_len = 0;
1533   NewConnection->signature_auth_len = 0;
1534   if (QOS) RpcQualityOfService_AddRef(QOS);
1535   NewConnection->QOS = QOS;
1536
1537   list_init(&NewConnection->conn_pool_entry);
1538   NewConnection->async_state = NULL;
1539
1540   TRACE("connection: %p\n", NewConnection);
1541   *Connection = NewConnection;
1542
1543   return RPC_S_OK;
1544 }
1545
1546 static RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
1547 {
1548   RPC_STATUS err;
1549
1550   err = RPCRT4_CreateConnection(Connection, OldConnection->server,
1551                                 rpcrt4_conn_get_name(OldConnection),
1552                                 OldConnection->NetworkAddr,
1553                                 OldConnection->Endpoint, NULL,
1554                                 OldConnection->AuthInfo, OldConnection->QOS);
1555   if (err == RPC_S_OK)
1556     rpcrt4_conn_handoff(OldConnection, *Connection);
1557   return err;
1558 }
1559
1560 RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection)
1561 {
1562   TRACE("connection: %p\n", Connection);
1563
1564   RPCRT4_CloseConnection(Connection);
1565   RPCRT4_strfree(Connection->Endpoint);
1566   RPCRT4_strfree(Connection->NetworkAddr);
1567   HeapFree(GetProcessHeap(), 0, Connection->NetworkOptions);
1568   if (Connection->AuthInfo) RpcAuthInfo_Release(Connection->AuthInfo);
1569   if (Connection->QOS) RpcQualityOfService_Release(Connection->QOS);
1570
1571   /* server-only */
1572   if (Connection->server_binding) RPCRT4_ReleaseBinding(Connection->server_binding);
1573
1574   HeapFree(GetProcessHeap(), 0, Connection);
1575   return RPC_S_OK;
1576 }
1577
1578 RPC_STATUS RpcTransport_GetTopOfTower(unsigned char *tower_data,
1579                                       size_t *tower_size,
1580                                       const char *protseq,
1581                                       const char *networkaddr,
1582                                       const char *endpoint)
1583 {
1584     twr_empty_floor_t *protocol_floor;
1585     const struct connection_ops *protseq_ops = rpcrt4_get_conn_protseq_ops(protseq);
1586
1587     *tower_size = 0;
1588
1589     if (!protseq_ops)
1590         return RPC_S_INVALID_RPC_PROTSEQ;
1591
1592     if (!tower_data)
1593     {
1594         *tower_size = sizeof(*protocol_floor);
1595         *tower_size += protseq_ops->get_top_of_tower(NULL, networkaddr, endpoint);
1596         return RPC_S_OK;
1597     }
1598
1599     protocol_floor = (twr_empty_floor_t *)tower_data;
1600     protocol_floor->count_lhs = sizeof(protocol_floor->protid);
1601     protocol_floor->protid = protseq_ops->epm_protocols[0];
1602     protocol_floor->count_rhs = 0;
1603
1604     tower_data += sizeof(*protocol_floor);
1605
1606     *tower_size = protseq_ops->get_top_of_tower(tower_data, networkaddr, endpoint);
1607     if (!*tower_size)
1608         return EPT_S_NOT_REGISTERED;
1609
1610     *tower_size += sizeof(*protocol_floor);
1611
1612     return RPC_S_OK;
1613 }
1614
1615 RPC_STATUS RpcTransport_ParseTopOfTower(const unsigned char *tower_data,
1616                                         size_t tower_size,
1617                                         char **protseq,
1618                                         char **networkaddr,
1619                                         char **endpoint)
1620 {
1621     const twr_empty_floor_t *protocol_floor;
1622     const twr_empty_floor_t *floor4;
1623     const struct connection_ops *protseq_ops = NULL;
1624     RPC_STATUS status;
1625     unsigned int i;
1626
1627     if (tower_size < sizeof(*protocol_floor))
1628         return EPT_S_NOT_REGISTERED;
1629
1630     protocol_floor = (const twr_empty_floor_t *)tower_data;
1631     tower_data += sizeof(*protocol_floor);
1632     tower_size -= sizeof(*protocol_floor);
1633     if ((protocol_floor->count_lhs != sizeof(protocol_floor->protid)) ||
1634         (protocol_floor->count_rhs > tower_size))
1635         return EPT_S_NOT_REGISTERED;
1636     tower_data += protocol_floor->count_rhs;
1637     tower_size -= protocol_floor->count_rhs;
1638
1639     floor4 = (const twr_empty_floor_t *)tower_data;
1640     if ((tower_size < sizeof(*floor4)) ||
1641         (floor4->count_lhs != sizeof(floor4->protid)))
1642         return EPT_S_NOT_REGISTERED;
1643
1644     for(i = 0; i < ARRAYSIZE(conn_protseq_list); i++)
1645         if ((protocol_floor->protid == conn_protseq_list[i].epm_protocols[0]) &&
1646             (floor4->protid == conn_protseq_list[i].epm_protocols[1]))
1647         {
1648             protseq_ops = &conn_protseq_list[i];
1649             break;
1650         }
1651
1652     if (!protseq_ops)
1653         return EPT_S_NOT_REGISTERED;
1654
1655     status = protseq_ops->parse_top_of_tower(tower_data, tower_size, networkaddr, endpoint);
1656
1657     if ((status == RPC_S_OK) && protseq)
1658     {
1659         *protseq = I_RpcAllocate(strlen(protseq_ops->name) + 1);
1660         strcpy(*protseq, protseq_ops->name);
1661     }
1662
1663     return status;
1664 }
1665
1666 /***********************************************************************
1667  *             RpcNetworkIsProtseqValidW (RPCRT4.@)
1668  *
1669  * Checks if the given protocol sequence is known by the RPC system.
1670  * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
1671  *
1672  */
1673 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(RPC_WSTR protseq)
1674 {
1675   char ps[0x10];
1676
1677   WideCharToMultiByte(CP_ACP, 0, protseq, -1,
1678                       ps, sizeof ps, NULL, NULL);
1679   if (rpcrt4_get_conn_protseq_ops(ps))
1680     return RPC_S_OK;
1681
1682   FIXME("Unknown protseq %s\n", debugstr_w(protseq));
1683
1684   return RPC_S_INVALID_RPC_PROTSEQ;
1685 }
1686
1687 /***********************************************************************
1688  *             RpcNetworkIsProtseqValidA (RPCRT4.@)
1689  */
1690 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(RPC_CSTR protseq)
1691 {
1692   UNICODE_STRING protseqW;
1693
1694   if (RtlCreateUnicodeStringFromAsciiz(&protseqW, (char*)protseq))
1695   {
1696     RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
1697     RtlFreeUnicodeString(&protseqW);
1698     return ret;
1699   }
1700   return RPC_S_OUT_OF_MEMORY;
1701 }