reactos/lib/rpcrt4/rpc_binding.c

   1 /*
   2  * RPC binding API
   3  *
   4  * Copyright 2001 Ove Kåven, TransGaming Technologies
   5  * Copyright 2003 Mike Hearn
   6  * Copyright 2004 Filip Navara
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * TODO:
  23  *  - a whole lot
  24  */
  25
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <assert.h>
  30
  31 #include "windef.h"
  32 #include "winbase.h"
  33 #include "winnls.h"
  34 #include "winerror.h"
  35 #include "winreg.h"
  36 #include "winternl.h"
  37 #include "wine/unicode.h"
  38
  39 #include "rpc.h"
  40 #include "rpcndr.h"
  41
  42 #include "wine/debug.h"
  43
  44 #include "rpc_binding.h"
  45 #include "rpc_message.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  48
  49 LPSTR RPCRT4_strndupA(LPCSTR src, INT slen)
  50 {
  51   DWORD len;
  52   LPSTR s;
  53   if (!src) return NULL;
  54   if (slen == -1) slen = strlen(src);
  55   len = slen;
  56   s = HeapAlloc(GetProcessHeap(), 0, len+1);
  57   memcpy(s, src, len);
  58   s[len] = 0;
  59   return s;
  60 }
  61
  62 LPSTR RPCRT4_strdupWtoA(LPWSTR src)
  63 {
  64   DWORD len;
  65   LPSTR s;
  66   if (!src) return NULL;
  67   len = WideCharToMultiByte(CP_ACP, 0, src, -1, NULL, 0, NULL, NULL);
  68   s = HeapAlloc(GetProcessHeap(), 0, len);
  69   WideCharToMultiByte(CP_ACP, 0, src, -1, s, len, NULL, NULL);
  70   return s;
  71 }
  72
  73 LPWSTR RPCRT4_strdupAtoW(LPSTR src)
  74 {
  75   DWORD len;
  76   LPWSTR s;
  77   if (!src) return NULL;
  78   len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0);
  79   s = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
  80   MultiByteToWideChar(CP_ACP, 0, src, -1, s, len);
  81   return s;
  82 }
  83
  84 LPWSTR RPCRT4_strndupW(LPWSTR src, INT slen)
  85 {
  86   DWORD len;
  87   LPWSTR s;
  88   if (!src) return NULL;
  89   if (slen == -1) slen = strlenW(src);
  90   len = slen;
  91   s = HeapAlloc(GetProcessHeap(), 0, (len+1)*sizeof(WCHAR));
  92   memcpy(s, src, len*sizeof(WCHAR));
  93   s[len] = 0;
  94   return s;
  95 }
  96
  97 void RPCRT4_strfree(LPSTR src)
  98 {
  99   if (src) HeapFree(GetProcessHeap(), 0, src);
 100 }
 101
 102 RPC_STATUS RPCRT4_CreateConnection(RpcConnection** Connection, BOOL server, LPSTR Protseq, LPSTR NetworkAddr, LPSTR Endpoint, LPSTR NetworkOptions, RpcBinding* Binding)
 103 {
 104   RpcConnection* NewConnection;
 105
 106   NewConnection = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcConnection));
 107   NewConnection->server = server;
 108   NewConnection->Protseq = RPCRT4_strdupA(Protseq);
 109   NewConnection->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
 110   NewConnection->Endpoint = RPCRT4_strdupA(Endpoint);
 111   NewConnection->Used = Binding;
 112   NewConnection->MaxTransmissionSize = RPC_MAX_PACKET_SIZE;
 113
 114   TRACE("connection: %p\n", NewConnection);
 115   *Connection = NewConnection;
 116
 117   return RPC_S_OK;
 118 }
 119
 120 RPC_STATUS RPCRT4_DestroyConnection(RpcConnection* Connection)
 121 {
 122   TRACE("connection: %p\n", Connection);
 123
 124   RPCRT4_CloseConnection(Connection);
 125   RPCRT4_strfree(Connection->Endpoint);
 126   RPCRT4_strfree(Connection->NetworkAddr);
 127   RPCRT4_strfree(Connection->Protseq);
 128   HeapFree(GetProcessHeap(), 0, Connection);
 129   return RPC_S_OK;
 130 }
 131
 132 RPC_STATUS RPCRT4_OpenConnection(RpcConnection* Connection)
 133 {
 134   TRACE("(Connection == ^%p)\n", Connection);
 135   if (!Connection->conn) {
 136     if (Connection->server) { /* server */
 137       /* protseq=ncalrpc: supposed to use NT LPC ports,
 138        * but we'll implement it with named pipes for now */
 139       if (strcmp(Connection->Protseq, "ncalrpc") == 0) {
 140         static LPCSTR prefix = "\\\\.\\pipe\\lrpc\\";
 141         LPSTR pname;
 142         pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
 143         strcat(strcpy(pname, prefix), Connection->Endpoint);
 144         TRACE("listening on %s\n", pname);
 145         Connection->conn = CreateNamedPipeA(pname, PROFILE_SERVER | PIPE_ACCESS_DUPLEX,
 146                                          PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE, PIPE_UNLIMITED_INSTANCES,
 147                                          RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
 148         HeapFree(GetProcessHeap(), 0, pname);
 149         memset(&Connection->ovl, 0, sizeof(Connection->ovl));
 150         Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
 151         if (!ConnectNamedPipe(Connection->conn, &Connection->ovl)) {
 152           WARN("Couldn't ConnectNamedPipe (error was %ld)\n", GetLastError());
 153           if (GetLastError() == ERROR_PIPE_CONNECTED) {
 154             SetEvent(Connection->ovl.hEvent);
 155             return RPC_S_OK;
 156           } else if (GetLastError() == ERROR_IO_PENDING) {
 157             return RPC_S_OK;
 158           }
 159           return RPC_S_SERVER_UNAVAILABLE;
 160         }
 161       }
 162       /* protseq=ncacn_np: named pipes */
 163       else if (strcmp(Connection->Protseq, "ncacn_np") == 0) {
 164         static LPCSTR prefix = "\\\\.";
 165         LPSTR pname;
 166         pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
 167         strcat(strcpy(pname, prefix), Connection->Endpoint);
 168         TRACE("listening on %s\n", pname);
 169         Connection->conn = CreateNamedPipeA(pname, PROFILE_SERVER | PIPE_ACCESS_DUPLEX,
 170                                          PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES,
 171                                          RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE, 5000, NULL);
 172         HeapFree(GetProcessHeap(), 0, pname);
 173         memset(&Connection->ovl, 0, sizeof(Connection->ovl));
 174         Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
 175         if (!ConnectNamedPipe(Connection->conn, &Connection->ovl)) {
 176           WARN("Couldn't ConnectNamedPipe (error was %ld)\n", GetLastError());
 177           if (GetLastError() == ERROR_PIPE_CONNECTED) {
 178             SetEvent(Connection->ovl.hEvent);
 179             return RPC_S_OK;
 180           }
 181           return RPC_S_SERVER_UNAVAILABLE;
 182         }
 183       }
 184       else {
 185         ERR("protseq %s not supported\n", Connection->Protseq);
 186         return RPC_S_PROTSEQ_NOT_SUPPORTED;
 187       }
 188     }
 189     else { /* client */
 190       /* protseq=ncalrpc: supposed to use NT LPC ports,
 191        * but we'll implement it with named pipes for now */
 192       if (strcmp(Connection->Protseq, "ncalrpc") == 0) {
 193         static LPCSTR prefix = "\\\\.\\pipe\\lrpc\\";
 194         LPSTR pname;
 195         HANDLE conn;
 196         DWORD err;
 197         DWORD dwMode;
 198
 199         pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
 200         strcat(strcpy(pname, prefix), Connection->Endpoint);
 201         TRACE("connecting to %s\n", pname);
 202         while (TRUE) {
 203           if (WaitNamedPipeA(pname, NMPWAIT_WAIT_FOREVER)) {
 204             conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
 205                                OPEN_EXISTING, 0, 0);
 206             if (conn != INVALID_HANDLE_VALUE) break;
 207             err = GetLastError();
 208             if (err == ERROR_PIPE_BUSY) continue;
 209             TRACE("connection failed, error=%lx\n", err);
 210             HeapFree(GetProcessHeap(), 0, pname);
 211             return RPC_S_SERVER_TOO_BUSY;
 212           } else {
 213             err = GetLastError();
 214             TRACE("connection failed, error=%lx\n", err);
 215             HeapFree(GetProcessHeap(), 0, pname);
 216             return RPC_S_SERVER_UNAVAILABLE;
 217           }
 218         }
 219
 220         /* success */
 221         HeapFree(GetProcessHeap(), 0, pname);
 222         memset(&Connection->ovl, 0, sizeof(Connection->ovl));
 223         /* pipe is connected; change to message-read mode. */
 224         dwMode = PIPE_READMODE_MESSAGE;
 225         SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
 226         Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
 227         Connection->conn = conn;
 228       }
 229       /* protseq=ncacn_np: named pipes */
 230       else if (strcmp(Connection->Protseq, "ncacn_np") == 0) {
 231         static LPCSTR prefix = "\\\\.";
 232         LPSTR pname;
 233         HANDLE conn;
 234         DWORD err;
 235         DWORD dwMode;
 236
 237         pname = HeapAlloc(GetProcessHeap(), 0, strlen(prefix) + strlen(Connection->Endpoint) + 1);
 238         strcat(strcpy(pname, prefix), Connection->Endpoint);
 239         TRACE("connecting to %s\n", pname);
 240         conn = CreateFileA(pname, GENERIC_READ|GENERIC_WRITE, 0, NULL,
 241                            OPEN_EXISTING, 0, 0);
 242         if (conn == INVALID_HANDLE_VALUE) {
 243           err = GetLastError();
 244           /* we don't need to handle ERROR_PIPE_BUSY here,
 245            * the doc says that it is returned to the app */
 246           TRACE("connection failed, error=%lx\n", err);
 247           HeapFree(GetProcessHeap(), 0, pname);
 248           if (err == ERROR_PIPE_BUSY)
 249             return RPC_S_SERVER_TOO_BUSY;
 250           else
 251             return RPC_S_SERVER_UNAVAILABLE;
 252         }
 253
 254         /* success */
 255         HeapFree(GetProcessHeap(), 0, pname);
 256         memset(&Connection->ovl, 0, sizeof(Connection->ovl));
 257         /* pipe is connected; change to message-read mode. */
 258         dwMode = PIPE_READMODE_MESSAGE;
 259         SetNamedPipeHandleState(conn, &dwMode, NULL, NULL);
 260         Connection->ovl.hEvent = CreateEventA(NULL, TRUE, FALSE, NULL);
 261         Connection->conn = conn;
 262       } else {
 263         ERR("protseq %s not supported\n", Connection->Protseq);
 264         return RPC_S_PROTSEQ_NOT_SUPPORTED;
 265       }
 266     }
 267   }
 268   return RPC_S_OK;
 269 }
 270
 271 RPC_STATUS RPCRT4_CloseConnection(RpcConnection* Connection)
 272 {
 273   TRACE("(Connection == ^%p)\n", Connection);
 274   if (Connection->conn) {
 275     CancelIo(Connection->conn);
 276     CloseHandle(Connection->conn);
 277     Connection->conn = 0;
 278   }
 279   if (Connection->ovl.hEvent) {
 280     CloseHandle(Connection->ovl.hEvent);
 281     Connection->ovl.hEvent = 0;
 282   }
 283   return RPC_S_OK;
 284 }
 285
 286 RPC_STATUS RPCRT4_SpawnConnection(RpcConnection** Connection, RpcConnection* OldConnection)
 287 {
 288   RpcConnection* NewConnection;
 289   RPC_STATUS err = RPCRT4_CreateConnection(&NewConnection, OldConnection->server, OldConnection->Protseq,
 290                                            OldConnection->NetworkAddr, OldConnection->Endpoint, NULL, NULL);
 291   if (err == RPC_S_OK) {
 292     /* because of the way named pipes work, we'll transfer the connected pipe
 293      * to the child, then reopen the server binding to continue listening */
 294     NewConnection->conn = OldConnection->conn;
 295     NewConnection->ovl = OldConnection->ovl;
 296     OldConnection->conn = 0;
 297     memset(&OldConnection->ovl, 0, sizeof(OldConnection->ovl));
 298     *Connection = NewConnection;
 299     RPCRT4_OpenConnection(OldConnection);
 300   }
 301   return err;
 302 }
 303
 304 RPC_STATUS RPCRT4_AllocBinding(RpcBinding** Binding, BOOL server)
 305 {
 306   RpcBinding* NewBinding;
 307
 308   NewBinding = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RpcBinding));
 309   NewBinding->refs = 1;
 310   NewBinding->server = server;
 311
 312   *Binding = NewBinding;
 313
 314   return RPC_S_OK;
 315 }
 316
 317 RPC_STATUS RPCRT4_CreateBindingA(RpcBinding** Binding, BOOL server, LPSTR Protseq)
 318 {
 319   RpcBinding* NewBinding;
 320
 321   RPCRT4_AllocBinding(&NewBinding, server);
 322   NewBinding->Protseq = RPCRT4_strdupA(Protseq);
 323
 324   TRACE("binding: %p\n", NewBinding);
 325   *Binding = NewBinding;
 326
 327   return RPC_S_OK;
 328 }
 329
 330 RPC_STATUS RPCRT4_CreateBindingW(RpcBinding** Binding, BOOL server, LPWSTR Protseq)
 331 {
 332   RpcBinding* NewBinding;
 333
 334   RPCRT4_AllocBinding(&NewBinding, server);
 335   NewBinding->Protseq = RPCRT4_strdupWtoA(Protseq);
 336
 337   TRACE("binding: %p\n", NewBinding);
 338   *Binding = NewBinding;
 339
 340   return RPC_S_OK;
 341 }
 342
 343 RPC_STATUS RPCRT4_CompleteBindingA(RpcBinding* Binding, LPSTR NetworkAddr,  LPSTR Endpoint,  LPSTR NetworkOptions)
 344 {
 345   TRACE("(RpcBinding == ^%p, NetworkAddr == \"%s\", EndPoint == \"%s\", NetworkOptions == \"%s\")\n", Binding,
 346    debugstr_a(NetworkAddr), debugstr_a(Endpoint), debugstr_a(NetworkOptions));
 347
 348   RPCRT4_strfree(Binding->NetworkAddr);
 349   Binding->NetworkAddr = RPCRT4_strdupA(NetworkAddr);
 350   RPCRT4_strfree(Binding->Endpoint);
 351   if (Endpoint) {
 352     Binding->Endpoint = RPCRT4_strdupA(Endpoint);
 353   } else {
 354     Binding->Endpoint = RPCRT4_strdupA("");
 355   }
 356   if (!Binding->Endpoint) ERR("out of memory?\n");
 357
 358   return RPC_S_OK;
 359 }
 360
 361 RPC_STATUS RPCRT4_CompleteBindingW(RpcBinding* Binding, LPWSTR NetworkAddr, LPWSTR Endpoint, LPWSTR NetworkOptions)
 362 {
 363   TRACE("(RpcBinding == ^%p, NetworkAddr == \"%s\", EndPoint == \"%s\", NetworkOptions == \"%s\")\n", Binding,
 364    debugstr_w(NetworkAddr), debugstr_w(Endpoint), debugstr_w(NetworkOptions));
 365
 366   RPCRT4_strfree(Binding->NetworkAddr);
 367   Binding->NetworkAddr = RPCRT4_strdupWtoA(NetworkAddr);
 368   RPCRT4_strfree(Binding->Endpoint);
 369   if (Endpoint) {
 370     Binding->Endpoint = RPCRT4_strdupWtoA(Endpoint);
 371   } else {
 372     Binding->Endpoint = RPCRT4_strdupA("");
 373   }
 374   if (!Binding->Endpoint) ERR("out of memory?\n");
 375
 376   return RPC_S_OK;
 377 }
 378
 379 RPC_STATUS RPCRT4_ResolveBinding(RpcBinding* Binding, LPSTR Endpoint)
 380 {
 381   TRACE("(RpcBinding == ^%p, EndPoint == \"%s\"\n", Binding, Endpoint);
 382
 383   RPCRT4_strfree(Binding->Endpoint);
 384   Binding->Endpoint = RPCRT4_strdupA(Endpoint);
 385
 386   return RPC_S_OK;
 387 }
 388
 389 RPC_STATUS RPCRT4_SetBindingObject(RpcBinding* Binding, UUID* ObjectUuid)
 390 {
 391   TRACE("(*RpcBinding == ^%p, UUID == %s)\n", Binding, debugstr_guid(ObjectUuid));
 392   if (ObjectUuid) memcpy(&Binding->ObjectUuid, ObjectUuid, sizeof(UUID));
 393   else UuidCreateNil(&Binding->ObjectUuid);
 394   return RPC_S_OK;
 395 }
 396
 397 RPC_STATUS RPCRT4_MakeBinding(RpcBinding** Binding, RpcConnection* Connection)
 398 {
 399   RpcBinding* NewBinding;
 400   TRACE("(*RpcBinding == ^%p, Connection == ^%p)\n", *Binding, Connection);
 401
 402   RPCRT4_AllocBinding(&NewBinding, Connection->server);
 403   NewBinding->Protseq = RPCRT4_strdupA(Connection->Protseq);
 404   NewBinding->NetworkAddr = RPCRT4_strdupA(Connection->NetworkAddr);
 405   NewBinding->Endpoint = RPCRT4_strdupA(Connection->Endpoint);
 406   NewBinding->FromConn = Connection;
 407
 408   TRACE("binding: %p\n", NewBinding);
 409   *Binding = NewBinding;
 410
 411   return RPC_S_OK;
 412 }
 413
 414 RPC_STATUS RPCRT4_ExportBinding(RpcBinding** Binding, RpcBinding* OldBinding)
 415 {
 416   InterlockedIncrement(&OldBinding->refs);
 417   *Binding = OldBinding;
 418   return RPC_S_OK;
 419 }
 420
 421 RPC_STATUS RPCRT4_DestroyBinding(RpcBinding* Binding)
 422 {
 423   if (InterlockedDecrement(&Binding->refs))
 424     return RPC_S_OK;
 425
 426   TRACE("binding: %p\n", Binding);
 427   /* FIXME: release connections */
 428   RPCRT4_strfree(Binding->Endpoint);
 429   RPCRT4_strfree(Binding->NetworkAddr);
 430   RPCRT4_strfree(Binding->Protseq);
 431   HeapFree(GetProcessHeap(), 0, Binding);
 432   return RPC_S_OK;
 433 }
 434
 435 RPC_STATUS RPCRT4_OpenBinding(RpcBinding* Binding, RpcConnection** Connection,
 436                               PRPC_SYNTAX_IDENTIFIER TransferSyntax,
 437                               PRPC_SYNTAX_IDENTIFIER InterfaceId)
 438 {
 439   RpcConnection* NewConnection;
 440   RPC_STATUS status;
 441
 442   TRACE("(Binding == ^%p)\n", Binding);
 443
 444   /* if we try to bind a new interface and the connection is already opened,
 445    * close the current connection and create a new with the new binding. */
 446   if (!Binding->server && Binding->FromConn &&
 447       memcmp(&Binding->FromConn->ActiveInterface, InterfaceId,
 448              sizeof(RPC_SYNTAX_IDENTIFIER))) {
 449
 450     TRACE("releasing pre-existing connection\n");
 451     RPCRT4_DestroyConnection(Binding->FromConn);
 452     Binding->FromConn = NULL;
 453   } else {
 454     /* we already have an connection with acceptable binding, so use it */
 455     if (Binding->FromConn) {
 456       *Connection = Binding->FromConn;
 457       return RPC_S_OK;
 458     }
 459   }
 460
 461   /* create a new connection */
 462   RPCRT4_CreateConnection(&NewConnection, Binding->server, Binding->Protseq, Binding->NetworkAddr, Binding->Endpoint, NULL, Binding);
 463   *Connection = NewConnection;
 464   status = RPCRT4_OpenConnection(NewConnection);
 465   if (status != RPC_S_OK) {
 466     return status;
 467   }
 468
 469   /* we need to send a binding packet if we are client. */
 470   if (!(*Connection)->server) {
 471     RpcPktHdr *hdr;
 472     DWORD count;
 473     BYTE *response;
 474     RpcPktHdr *response_hdr;
 475
 476     TRACE("sending bind request to server\n");
 477
 478     hdr = RPCRT4_BuildBindHeader(NDR_LOCAL_DATA_REPRESENTATION,
 479                                  RPC_MAX_PACKET_SIZE, RPC_MAX_PACKET_SIZE,
 480                                  InterfaceId, TransferSyntax);
 481
 482     status = RPCRT4_Send(*Connection, hdr, NULL, 0);
 483     if (status != RPC_S_OK) {
 484       RPCRT4_DestroyConnection(*Connection);
 485       return status;
 486     }
 487
 488     response = HeapAlloc(GetProcessHeap(), 0, RPC_MAX_PACKET_SIZE);
 489     if (response == NULL) {
 490       WARN("Can't allocate memory for binding response\n");
 491       RPCRT4_DestroyConnection(*Connection);
 492       return E_OUTOFMEMORY;
 493     }
 494
 495     /* get a reply */
 496     if (!ReadFile(NewConnection->conn, response, RPC_MAX_PACKET_SIZE, &count, NULL)) {
 497       WARN("ReadFile failed with error %ld\n", GetLastError());
 498       RPCRT4_DestroyConnection(*Connection);
 499       return RPC_S_PROTOCOL_ERROR;
 500     }
 501
 502     if (count < sizeof(response_hdr->common)) {
 503       WARN("received invalid header\n");
 504       RPCRT4_DestroyConnection(*Connection);
 505       return RPC_S_PROTOCOL_ERROR;
 506     }
 507
 508     response_hdr = (RpcPktHdr*)response;
 509
 510     if (response_hdr->common.rpc_ver != RPC_VER_MAJOR ||
 511         response_hdr->common.rpc_ver_minor != RPC_VER_MINOR ||
 512         response_hdr->common.ptype != PKT_BIND_ACK) {
 513       WARN("invalid protocol version or rejection packet\n");
 514       RPCRT4_DestroyConnection(*Connection);
 515       return RPC_S_PROTOCOL_ERROR;
 516     }
 517
 518     if (response_hdr->bind_ack.max_tsize < RPC_MIN_PACKET_SIZE) {
 519       WARN("server doesn't allow large enough packets\n");
 520       RPCRT4_DestroyConnection(*Connection);
 521       return RPC_S_PROTOCOL_ERROR;
 522     }
 523
 524     /* FIXME: do more checks? */
 525
 526     (*Connection)->MaxTransmissionSize = response_hdr->bind_ack.max_tsize;
 527     (*Connection)->ActiveInterface = *InterfaceId;
 528   }
 529
 530   return RPC_S_OK;
 531 }
 532
 533 RPC_STATUS RPCRT4_CloseBinding(RpcBinding* Binding, RpcConnection* Connection)
 534 {
 535   TRACE("(Binding == ^%p)\n", Binding);
 536   if (!Connection) return RPC_S_OK;
 537   if (Binding->FromConn == Connection) return RPC_S_OK;
 538   return RPCRT4_DestroyConnection(Connection);
 539 }
 540
 541 /* utility functions for string composing and parsing */
 542 static unsigned RPCRT4_strcopyA(LPSTR data, LPCSTR src)
 543 {
 544   unsigned len = strlen(src);
 545   memcpy(data, src, len*sizeof(CHAR));
 546   return len;
 547 }
 548
 549 static unsigned RPCRT4_strcopyW(LPWSTR data, LPCWSTR src)
 550 {
 551   unsigned len = strlenW(src);
 552   memcpy(data, src, len*sizeof(WCHAR));
 553   return len;
 554 }
 555
 556 static LPSTR RPCRT4_strconcatA(LPSTR dst, LPCSTR src)
 557 {
 558   DWORD len = strlen(dst), slen = strlen(src);
 559   LPSTR ndst = HeapReAlloc(GetProcessHeap(), 0, dst, (len+slen+2)*sizeof(CHAR));
 560   if (!ndst)
 561   {
 562     HeapFree(GetProcessHeap(), 0, dst);
 563     return NULL;
 564   }
 565   ndst[len] = ',';
 566   memcpy(ndst+len+1, src, slen+1);
 567   return ndst;
 568 }
 569
 570 static LPWSTR RPCRT4_strconcatW(LPWSTR dst, LPCWSTR src)
 571 {
 572   DWORD len = strlenW(dst), slen = strlenW(src);
 573   LPWSTR ndst = HeapReAlloc(GetProcessHeap(), 0, dst, (len+slen+2)*sizeof(WCHAR));
 574   if (!ndst)
 575   {
 576     HeapFree(GetProcessHeap(), 0, dst);
 577     return NULL;
 578   }
 579   ndst[len] = ',';
 580   memcpy(ndst+len+1, src, (slen+1)*sizeof(WCHAR));
 581   return ndst;
 582 }
 583
 584
 585 /***********************************************************************
 586  *             RpcStringBindingComposeA (RPCRT4.@)
 587  */
 588 RPC_STATUS WINAPI RpcStringBindingComposeA(unsigned char *ObjUuid, unsigned char *Protseq,
 589                                            unsigned char *NetworkAddr, unsigned char *Endpoint,
 590                                            unsigned char *Options, unsigned char** StringBinding )
 591 {
 592   DWORD len = 1;
 593   LPSTR data;
 594
 595   TRACE( "(%s,%s,%s,%s,%s,%p)\n",
 596         debugstr_a( ObjUuid ), debugstr_a( Protseq ),
 597         debugstr_a( NetworkAddr ), debugstr_a( Endpoint ),
 598         debugstr_a( Options ), StringBinding );
 599
 600   if (ObjUuid && *ObjUuid) len += strlen(ObjUuid) + 1;
 601   if (Protseq && *Protseq) len += strlen(Protseq) + 1;
 602   if (NetworkAddr && *NetworkAddr) len += strlen(NetworkAddr);
 603   if (Endpoint && *Endpoint) len += strlen(Endpoint) + 2;
 604   if (Options && *Options) len += strlen(Options) + 2;
 605
 606   data = HeapAlloc(GetProcessHeap(), 0, len);
 607   *StringBinding = data;
 608
 609   if (ObjUuid && *ObjUuid) {
 610     data += RPCRT4_strcopyA(data, ObjUuid);
 611     *data++ = '@';
 612   }
 613   if (Protseq && *Protseq) {
 614     data += RPCRT4_strcopyA(data, Protseq);
 615     *data++ = ':';
 616   }
 617   if (NetworkAddr && *NetworkAddr)
 618     data += RPCRT4_strcopyA(data, NetworkAddr);
 619
 620   if ((Endpoint && *Endpoint) ||
 621       (Options && *Options)) {
 622     *data++ = '[';
 623     if (Endpoint && *Endpoint) {
 624       data += RPCRT4_strcopyA(data, Endpoint);
 625       if (Options && *Options) *data++ = ',';
 626     }
 627     if (Options && *Options) {
 628       data += RPCRT4_strcopyA(data, Options);
 629     }
 630     *data++ = ']';
 631   }
 632   *data = 0;
 633
 634   return RPC_S_OK;
 635 }
 636
 637 /***********************************************************************
 638  *             RpcStringBindingComposeW (RPCRT4.@)
 639  */
 640 RPC_STATUS WINAPI RpcStringBindingComposeW( LPWSTR ObjUuid, LPWSTR Protseq,
 641                                             LPWSTR NetworkAddr, LPWSTR Endpoint,
 642                                             LPWSTR Options, LPWSTR* StringBinding )
 643 {
 644   DWORD len = 1;
 645   LPWSTR data;
 646
 647   TRACE("(%s,%s,%s,%s,%s,%p)\n",
 648        debugstr_w( ObjUuid ), debugstr_w( Protseq ),
 649        debugstr_w( NetworkAddr ), debugstr_w( Endpoint ),
 650        debugstr_w( Options ), StringBinding);
 651
 652   if (ObjUuid && *ObjUuid) len += strlenW(ObjUuid) + 1;
 653   if (Protseq && *Protseq) len += strlenW(Protseq) + 1;
 654   if (NetworkAddr && *NetworkAddr) len += strlenW(NetworkAddr);
 655   if (Endpoint && *Endpoint) len += strlenW(Endpoint) + 2;
 656   if (Options && *Options) len += strlenW(Options) + 2;
 657
 658   data = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
 659   *StringBinding = data;
 660
 661   if (ObjUuid && *ObjUuid) {
 662     data += RPCRT4_strcopyW(data, ObjUuid);
 663     *data++ = '@';
 664   }
 665   if (Protseq && *Protseq) {
 666     data += RPCRT4_strcopyW(data, Protseq);
 667     *data++ = ':';
 668   }
 669   if (NetworkAddr && *NetworkAddr) {
 670     data += RPCRT4_strcopyW(data, NetworkAddr);
 671   }
 672   if ((Endpoint && *Endpoint) ||
 673       (Options && *Options)) {
 674     *data++ = '[';
 675     if (Endpoint && *Endpoint) {
 676       data += RPCRT4_strcopyW(data, Endpoint);
 677       if (Options && *Options) *data++ = ',';
 678     }
 679     if (Options && *Options) {
 680       data += RPCRT4_strcopyW(data, Options);
 681     }
 682     *data++ = ']';
 683   }
 684   *data = 0;
 685
 686   return RPC_S_OK;
 687 }
 688
 689
 690 /***********************************************************************
 691  *             RpcStringBindingParseA (RPCRT4.@)
 692  */
 693 RPC_STATUS WINAPI RpcStringBindingParseA( unsigned char *StringBinding, unsigned char **ObjUuid,
 694                                           unsigned char **Protseq, unsigned char **NetworkAddr,
 695                                           unsigned char **Endpoint, unsigned char **Options)
 696 {
 697   CHAR *data, *next;
 698   static const char ep_opt[] = "endpoint=";
 699
 700   TRACE("(%s,%p,%p,%p,%p,%p)\n", debugstr_a(StringBinding),
 701        ObjUuid, Protseq, NetworkAddr, Endpoint, Options);
 702
 703   if (ObjUuid) *ObjUuid = NULL;
 704   if (Protseq) *Protseq = NULL;
 705   if (NetworkAddr) *NetworkAddr = NULL;
 706   if (Endpoint) *Endpoint = NULL;
 707   if (Options) *Options = NULL;
 708
 709   data = StringBinding;
 710
 711   next = strchr(data, '@');
 712   if (next) {
 713     if (ObjUuid) *ObjUuid = RPCRT4_strndupA(data, next - data);
 714     data = next+1;
 715   }
 716
 717   next = strchr(data, ':');
 718   if (next) {
 719     if (Protseq) *Protseq = RPCRT4_strndupA(data, next - data);
 720     data = next+1;
 721   }
 722
 723   next = strchr(data, '[');
 724   if (next) {
 725     CHAR *close, *opt;
 726
 727     if (NetworkAddr) *NetworkAddr = RPCRT4_strndupA(data, next - data);
 728     data = next+1;
 729     close = strchr(data, ']');
 730     if (!close) goto fail;
 731
 732     /* tokenize options */
 733     while (data < close) {
 734       next = strchr(data, ',');
 735       if (!next || next > close) next = close;
 736       /* FIXME: this is kind of inefficient */
 737       opt = RPCRT4_strndupA(data, next - data);
 738       data = next+1;
 739
 740       /* parse option */
 741       next = strchr(opt, '=');
 742       if (!next) {
 743         /* not an option, must be an endpoint */
 744         if (*Endpoint) goto fail;
 745         *Endpoint = opt;
 746       } else {
 747         if (strncmp(opt, ep_opt, strlen(ep_opt)) == 0) {
 748           /* endpoint option */
 749           if (*Endpoint) goto fail;
 750           *Endpoint = RPCRT4_strdupA(next+1);
 751           HeapFree(GetProcessHeap(), 0, opt);
 752         } else {
 753           /* network option */
 754           if (*Options) {
 755             /* FIXME: this is kind of inefficient */
 756             *Options = RPCRT4_strconcatA(*Options, opt);
 757             HeapFree(GetProcessHeap(), 0, opt);
 758           } else
 759             *Options = opt;
 760         }
 761       }
 762     }
 763
 764     data = close+1;
 765     if (*data) goto fail;
 766   }
 767   else if (NetworkAddr)
 768     *NetworkAddr = RPCRT4_strdupA(data);
 769
 770   return RPC_S_OK;
 771
 772 fail:
 773   if (ObjUuid) RpcStringFreeA((unsigned char**)ObjUuid);
 774   if (Protseq) RpcStringFreeA((unsigned char**)Protseq);
 775   if (NetworkAddr) RpcStringFreeA((unsigned char**)NetworkAddr);
 776   if (Endpoint) RpcStringFreeA((unsigned char**)Endpoint);
 777   if (Options) RpcStringFreeA((unsigned char**)Options);
 778   return RPC_S_INVALID_STRING_BINDING;
 779 }
 780
 781 /***********************************************************************
 782  *             RpcStringBindingParseW (RPCRT4.@)
 783  */
 784 RPC_STATUS WINAPI RpcStringBindingParseW( LPWSTR StringBinding, LPWSTR *ObjUuid,
 785                                           LPWSTR *Protseq, LPWSTR *NetworkAddr,
 786                                           LPWSTR *Endpoint, LPWSTR *Options)
 787 {
 788   WCHAR *data, *next;
 789   static const WCHAR ep_opt[] = {'e','n','d','p','o','i','n','t','=',0};
 790
 791   TRACE("(%s,%p,%p,%p,%p,%p)\n", debugstr_w(StringBinding),
 792        ObjUuid, Protseq, NetworkAddr, Endpoint, Options);
 793
 794   if (ObjUuid) *ObjUuid = NULL;
 795   if (Protseq) *Protseq = NULL;
 796   if (NetworkAddr) *NetworkAddr = NULL;
 797   if (Endpoint) *Endpoint = NULL;
 798   if (Options) *Options = NULL;
 799
 800   data = StringBinding;
 801
 802   next = strchrW(data, '@');
 803   if (next) {
 804     if (ObjUuid) *ObjUuid = RPCRT4_strndupW(data, next - data);
 805     data = next+1;
 806   }
 807
 808   next = strchrW(data, ':');
 809   if (next) {
 810     if (Protseq) *Protseq = RPCRT4_strndupW(data, next - data);
 811     data = next+1;
 812   }
 813
 814   next = strchrW(data, '[');
 815   if (next) {
 816     WCHAR *close, *opt;
 817
 818     if (NetworkAddr) *NetworkAddr = RPCRT4_strndupW(data, next - data);
 819     data = next+1;
 820     close = strchrW(data, ']');
 821     if (!close) goto fail;
 822
 823     /* tokenize options */
 824     while (data < close) {
 825       next = strchrW(data, ',');
 826       if (!next || next > close) next = close;
 827       /* FIXME: this is kind of inefficient */
 828       opt = RPCRT4_strndupW(data, next - data);
 829       data = next+1;
 830
 831       /* parse option */
 832       next = strchrW(opt, '=');
 833       if (!next) {
 834         /* not an option, must be an endpoint */
 835         if (*Endpoint) goto fail;
 836         *Endpoint = opt;
 837       } else {
 838         if (strncmpW(opt, ep_opt, strlenW(ep_opt)) == 0) {
 839           /* endpoint option */
 840           if (*Endpoint) goto fail;
 841           *Endpoint = RPCRT4_strdupW(next+1);
 842           HeapFree(GetProcessHeap(), 0, opt);
 843         } else {
 844           /* network option */
 845           if (*Options) {
 846             /* FIXME: this is kind of inefficient */
 847             *Options = RPCRT4_strconcatW(*Options, opt);
 848             HeapFree(GetProcessHeap(), 0, opt);
 849           } else
 850             *Options = opt;
 851         }
 852       }
 853     }
 854
 855     data = close+1;
 856     if (*data) goto fail;
 857   } else if (NetworkAddr)
 858     *NetworkAddr = RPCRT4_strdupW(data);
 859
 860   return RPC_S_OK;
 861
 862 fail:
 863   if (ObjUuid) RpcStringFreeW(ObjUuid);
 864   if (Protseq) RpcStringFreeW(Protseq);
 865   if (NetworkAddr) RpcStringFreeW(NetworkAddr);
 866   if (Endpoint) RpcStringFreeW(Endpoint);
 867   if (Options) RpcStringFreeW(Options);
 868   return RPC_S_INVALID_STRING_BINDING;
 869 }
 870
 871 /***********************************************************************
 872  *             RpcBindingFree (RPCRT4.@)
 873  */
 874 RPC_STATUS WINAPI RpcBindingFree( RPC_BINDING_HANDLE* Binding )
 875 {
 876   RPC_STATUS status;
 877   TRACE("(%p) = %p\n", Binding, *Binding);
 878   status = RPCRT4_DestroyBinding(*Binding);
 879   if (status == RPC_S_OK) *Binding = 0;
 880   return status;
 881 }
 882
 883 /***********************************************************************
 884  *             RpcBindingVectorFree (RPCRT4.@)
 885  */
 886 RPC_STATUS WINAPI RpcBindingVectorFree( RPC_BINDING_VECTOR** BindingVector )
 887 {
 888   RPC_STATUS status;
 889   unsigned long c;
 890
 891   TRACE("(%p)\n", BindingVector);
 892   for (c=0; c<(*BindingVector)->Count; c++) {
 893     status = RpcBindingFree(&(*BindingVector)->BindingH[c]);
 894   }
 895   HeapFree(GetProcessHeap(), 0, *BindingVector);
 896   *BindingVector = NULL;
 897   return RPC_S_OK;
 898 }
 899
 900 /***********************************************************************
 901  *             RpcBindingInqObject (RPCRT4.@)
 902  */
 903 RPC_STATUS WINAPI RpcBindingInqObject( RPC_BINDING_HANDLE Binding, UUID* ObjectUuid )
 904 {
 905   RpcBinding* bind = (RpcBinding*)Binding;
 906
 907   TRACE("(%p,%p) = %s\n", Binding, ObjectUuid, debugstr_guid(&bind->ObjectUuid));
 908   memcpy(ObjectUuid, &bind->ObjectUuid, sizeof(UUID));
 909   return RPC_S_OK;
 910 }
 911
 912 /***********************************************************************
 913  *             RpcBindingSetObject (RPCRT4.@)
 914  */
 915 RPC_STATUS WINAPI RpcBindingSetObject( RPC_BINDING_HANDLE Binding, UUID* ObjectUuid )
 916 {
 917   RpcBinding* bind = (RpcBinding*)Binding;
 918
 919   TRACE("(%p,%s)\n", Binding, debugstr_guid(ObjectUuid));
 920   if (bind->server) return RPC_S_WRONG_KIND_OF_BINDING;
 921   return RPCRT4_SetBindingObject(Binding, ObjectUuid);
 922 }
 923
 924 /***********************************************************************
 925  *             RpcBindingFromStringBindingA (RPCRT4.@)
 926  */
 927 RPC_STATUS WINAPI RpcBindingFromStringBindingA( unsigned char *StringBinding, RPC_BINDING_HANDLE* Binding )
 928 {
 929   RPC_STATUS ret;
 930   RpcBinding* bind = NULL;
 931   unsigned char *ObjectUuid, *Protseq, *NetworkAddr, *Endpoint, *Options;
 932   UUID Uuid;
 933
 934   TRACE("(%s,%p)\n", debugstr_a(StringBinding), Binding);
 935
 936   ret = RpcStringBindingParseA(StringBinding, &ObjectUuid, &Protseq,
 937                               &NetworkAddr, &Endpoint, &Options);
 938   if (ret != RPC_S_OK) return ret;
 939
 940   ret = UuidFromStringA(ObjectUuid, &Uuid);
 941
 942   if (ret == RPC_S_OK)
 943     ret = RPCRT4_CreateBindingA(&bind, FALSE, Protseq);
 944   if (ret == RPC_S_OK)
 945     ret = RPCRT4_SetBindingObject(bind, &Uuid);
 946   if (ret == RPC_S_OK)
 947     ret = RPCRT4_CompleteBindingA(bind, NetworkAddr, Endpoint, Options);
 948
 949   RpcStringFreeA((unsigned char**)&Options);
 950   RpcStringFreeA((unsigned char**)&Endpoint);
 951   RpcStringFreeA((unsigned char**)&NetworkAddr);
 952   RpcStringFreeA((unsigned char**)&Protseq);
 953   RpcStringFreeA((unsigned char**)&ObjectUuid);
 954
 955   if (ret == RPC_S_OK)
 956     *Binding = (RPC_BINDING_HANDLE)bind;
 957   else
 958     RPCRT4_DestroyBinding(bind);
 959
 960   return ret;
 961 }
 962
 963 /***********************************************************************
 964  *             RpcBindingFromStringBindingW (RPCRT4.@)
 965  */
 966 RPC_STATUS WINAPI RpcBindingFromStringBindingW( LPWSTR StringBinding, RPC_BINDING_HANDLE* Binding )
 967 {
 968   RPC_STATUS ret;
 969   RpcBinding* bind = NULL;
 970   LPWSTR ObjectUuid, Protseq, NetworkAddr, Endpoint, Options;
 971   UUID Uuid;
 972
 973   TRACE("(%s,%p)\n", debugstr_w(StringBinding), Binding);
 974
 975   ret = RpcStringBindingParseW(StringBinding, &ObjectUuid, &Protseq,
 976                               &NetworkAddr, &Endpoint, &Options);
 977   if (ret != RPC_S_OK) return ret;
 978
 979   ret = UuidFromStringW(ObjectUuid, &Uuid);
 980
 981   if (ret == RPC_S_OK)
 982     ret = RPCRT4_CreateBindingW(&bind, FALSE, Protseq);
 983   if (ret == RPC_S_OK)
 984     ret = RPCRT4_SetBindingObject(bind, &Uuid);
 985   if (ret == RPC_S_OK)
 986     ret = RPCRT4_CompleteBindingW(bind, NetworkAddr, Endpoint, Options);
 987
 988   RpcStringFreeW(&Options);
 989   RpcStringFreeW(&Endpoint);
 990   RpcStringFreeW(&NetworkAddr);
 991   RpcStringFreeW(&Protseq);
 992   RpcStringFreeW(&ObjectUuid);
 993
 994   if (ret == RPC_S_OK)
 995     *Binding = (RPC_BINDING_HANDLE)bind;
 996   else
 997     RPCRT4_DestroyBinding(bind);
 998
 999   return ret;
1000 }
1001
1002 /***********************************************************************
1003  *             RpcBindingToStringBindingA (RPCRT4.@)
1004  */
1005 RPC_STATUS WINAPI RpcBindingToStringBindingA( RPC_BINDING_HANDLE Binding, unsigned char** StringBinding )
1006 {
1007   RPC_STATUS ret;
1008   RpcBinding* bind = (RpcBinding*)Binding;
1009   LPSTR ObjectUuid;
1010
1011   TRACE("(%p,%p)\n", Binding, StringBinding);
1012
1013   ret = UuidToStringA(&bind->ObjectUuid, (unsigned char**)&ObjectUuid);
1014   if (ret != RPC_S_OK) return ret;
1015
1016   ret = RpcStringBindingComposeA(ObjectUuid, bind->Protseq, bind->NetworkAddr,
1017                                  bind->Endpoint, NULL, StringBinding);
1018
1019   RpcStringFreeA((unsigned char**)&ObjectUuid);
1020
1021   return ret;
1022 }
1023
1024 /***********************************************************************
1025  *             RpcBindingToStringBindingW (RPCRT4.@)
1026  */
1027 RPC_STATUS WINAPI RpcBindingToStringBindingW( RPC_BINDING_HANDLE Binding, unsigned short** StringBinding )
1028 {
1029   RPC_STATUS ret;
1030   unsigned char *str = NULL;
1031   TRACE("(%p,%p)\n", Binding, StringBinding);
1032   ret = RpcBindingToStringBindingA(Binding, &str);
1033   *StringBinding = RPCRT4_strdupAtoW(str);
1034   RpcStringFreeA((unsigned char**)&str);
1035   return ret;
1036 }
1037
1038 /***********************************************************************
1039  *             I_RpcBindingSetAsync (RPCRT4.@)
1040  * NOTES
1041  *  Exists in win9x and winNT, but with different number of arguments
1042  *  (9x version has 3 arguments, NT has 2).
1043  */
1044 RPC_STATUS WINAPI I_RpcBindingSetAsync( RPC_BINDING_HANDLE Binding, RPC_BLOCKING_FN BlockingFn)
1045 {
1046   RpcBinding* bind = (RpcBinding*)Binding;
1047
1048   TRACE( "(%p,%p): stub\n", Binding, BlockingFn );
1049
1050   bind->BlockingFn = BlockingFn;
1051
1052   return RPC_S_OK;
1053 }
1054
1055 /***********************************************************************
1056  *             RpcNetworkIsProtseqValidA (RPCRT4.@)
1057  */
1058 RPC_STATUS WINAPI RpcNetworkIsProtseqValidA(unsigned char *protseq) {
1059   UNICODE_STRING protseqW;
1060
1061   if (!protseq) return RPC_S_INVALID_RPC_PROTSEQ; /* ? */
1062
1063   if (RtlCreateUnicodeStringFromAsciiz(&protseqW, protseq)) {
1064     RPC_STATUS ret = RpcNetworkIsProtseqValidW(protseqW.Buffer);
1065     RtlFreeUnicodeString(&protseqW);
1066     return ret;
1067   } else return RPC_S_OUT_OF_MEMORY;
1068 }
1069
1070 /***********************************************************************
1071  *             RpcNetworkIsProtseqValidW (RPCRT4.@)
1072  *
1073  * Checks if the given protocol sequence is known by the RPC system.
1074  * If it is, returns RPC_S_OK, otherwise RPC_S_PROTSEQ_NOT_SUPPORTED.
1075  *
1076  * We currently support:
1077  *   ncalrpc   local-only rpc over LPC (LPC is not really used)
1078  *   ncacn_np  rpc over named pipes
1079  */
1080 RPC_STATUS WINAPI RpcNetworkIsProtseqValidW(LPWSTR protseq) {
1081   static const WCHAR protseqsW[][15] = {
1082     {'n','c','a','l','r','p','c',0},
1083     {'n','c','a','c','n','_','n','p',0}
1084   };
1085   static const int count = sizeof(protseqsW) / sizeof(protseqsW[0]);
1086   int i;
1087
1088   if (!protseq) return RPC_S_INVALID_RPC_PROTSEQ; /* ? */
1089
1090   for (i = 0; i < count; i++) {
1091     if (!strcmpW(protseq, protseqsW[i])) return RPC_S_OK;
1092   }
1093
1094   FIXME("Unknown protseq %s - we probably need to implement it one day\n", debugstr_w(protseq));
1095   return RPC_S_PROTSEQ_NOT_SUPPORTED;
1096 }