dlls/rpcrt4/rpc_epmap.c

   1 /*
   2  * RPC endpoint mapper
   3  *
   4  * Copyright 2002 Greg Turner
   5  * Copyright 2001 Ove Kåven, TransGaming Technologies
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * TODO:
  22  *  - actually do things right
  23  */
  24
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27 #include <string.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winerror.h"
  32
  33 #include "rpc.h"
  34
  35 #include "wine/debug.h"
  36
  37 #include "rpc_binding.h"
  38 #include "epm_towers.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(ole);
  41
  42 /* The "real" RPC portmapper endpoints that I know of are:
  43  *
  44  *  ncadg_ip_udp: 135
  45  *  ncacn_ip_tcp: 135
  46  *  ncacn_np: \\pipe\epmapper (?)
  47  *  ncalrpc: epmapper
  48  *
  49  * If the user's machine ran a DCE RPC daemon, it would
  50  * probably be possible to connect to it, but there are many
  51  * reasons not to, like:
  52  *  - the user probably does *not* run one, and probably
  53  *    shouldn't be forced to run one just for local COM
  54  *  - very few Unix systems use DCE RPC... if they run a RPC
  55  *    daemon at all, it's usually Sun RPC
  56  *  - DCE RPC registrations are persistent and saved on disk,
  57  *    while MS-RPC registrations are documented as non-persistent
  58  *    and stored only in RAM, and auto-destroyed when the process
  59  *    dies (something DCE RPC can't do)
  60  *
  61  * Of course, if the user *did* want to run a DCE RPC daemon anyway,
  62  * there would be interoperability advantages, like the possibility
  63  * of running a fully functional DCOM server using Wine...
  64  */
  65
  66 /***********************************************************************
  67  *             RpcEpRegisterA (RPCRT4.@)
  68  */
  69 RPC_STATUS WINAPI RpcEpRegisterA( RPC_IF_HANDLE IfSpec, RPC_BINDING_VECTOR *BindingVector,
  70                                   UUID_VECTOR *UuidVector, RPC_CSTR Annotation )
  71 {
  72   RPCSS_NP_MESSAGE msg;
  73   RPCSS_NP_REPLY reply;
  74   char *vardata_payload, *vp;
  75   PRPC_SERVER_INTERFACE If = (PRPC_SERVER_INTERFACE)IfSpec;
  76   unsigned long c;
  77   RPC_STATUS rslt = RPC_S_OK;
  78
  79   TRACE("(%p,%p,%p,%s)\n", IfSpec, BindingVector, UuidVector, debugstr_a((char*)Annotation));
  80   TRACE(" ifid=%s\n", debugstr_guid(&If->InterfaceId.SyntaxGUID));
  81   for (c=0; c<BindingVector->Count; c++) {
  82     RpcBinding* bind = (RpcBinding*)(BindingVector->BindingH[c]);
  83     TRACE(" protseq[%ld]=%s\n", c, debugstr_a(bind->Protseq));
  84     TRACE(" endpoint[%ld]=%s\n", c, debugstr_a(bind->Endpoint));
  85   }
  86   if (UuidVector) {
  87     for (c=0; c<UuidVector->Count; c++)
  88       TRACE(" obj[%ld]=%s\n", c, debugstr_guid(UuidVector->Uuid[c]));
  89   }
  90
  91   /* FIXME: Do something with annotation. */
  92
  93   /* construct the message to rpcss */
  94   msg.message_type = RPCSS_NP_MESSAGE_TYPEID_REGISTEREPMSG;
  95   msg.message.registerepmsg.iface = If->InterfaceId;
  96   msg.message.registerepmsg.no_replace = 0;
  97
  98   msg.message.registerepmsg.object_count = (UuidVector) ? UuidVector->Count : 0;
  99   msg.message.registerepmsg.binding_count = BindingVector->Count;
 100
 101   /* calculate vardata payload size */
 102   msg.vardata_payload_size = msg.message.registerepmsg.object_count * sizeof(UUID);
 103   for (c=0; c < msg.message.registerepmsg.binding_count; c++) {
 104     RpcBinding *bind = (RpcBinding *)(BindingVector->BindingH[c]);
 105     msg.vardata_payload_size += strlen(bind->Protseq) + 1;
 106     msg.vardata_payload_size += strlen(bind->Endpoint) + 1;
 107   }
 108
 109   /* allocate the payload buffer */
 110   vp = vardata_payload = LocalAlloc(LPTR, msg.vardata_payload_size);
 111   if (!vardata_payload)
 112     return RPC_S_OUT_OF_MEMORY;
 113
 114   /* populate the payload data */
 115   for (c=0; c < msg.message.registerepmsg.object_count; c++) {
 116     CopyMemory(vp, UuidVector->Uuid[c], sizeof(UUID));
 117     vp += sizeof(UUID);
 118   }
 119
 120   for (c=0; c < msg.message.registerepmsg.binding_count; c++) {
 121     RpcBinding *bind = (RpcBinding*)(BindingVector->BindingH[c]);
 122     unsigned long pslen = strlen(bind->Protseq) + 1, eplen = strlen(bind->Endpoint) + 1;
 123     CopyMemory(vp, bind->Protseq, pslen);
 124     vp += pslen;
 125     CopyMemory(vp, bind->Endpoint, eplen);
 126     vp += eplen;
 127   }
 128
 129   /* send our request */
 130   if (!RPCRT4_RPCSSOnDemandCall(&msg, vardata_payload, &reply))
 131     rslt = RPC_S_OUT_OF_MEMORY;
 132
 133   /* free the payload buffer */
 134   LocalFree(vardata_payload);
 135
 136   return rslt;
 137 }
 138
 139 /***********************************************************************
 140  *             RpcEpUnregister (RPCRT4.@)
 141  */
 142 RPC_STATUS WINAPI RpcEpUnregister( RPC_IF_HANDLE IfSpec, RPC_BINDING_VECTOR *BindingVector,
 143                                    UUID_VECTOR *UuidVector )
 144 {
 145   RPCSS_NP_MESSAGE msg;
 146   RPCSS_NP_REPLY reply;
 147   char *vardata_payload, *vp;
 148   PRPC_SERVER_INTERFACE If = (PRPC_SERVER_INTERFACE)IfSpec;
 149   unsigned long c;
 150   RPC_STATUS rslt = RPC_S_OK;
 151
 152   TRACE("(%p,%p,%p)\n", IfSpec, BindingVector, UuidVector);
 153   TRACE(" ifid=%s\n", debugstr_guid(&If->InterfaceId.SyntaxGUID));
 154   for (c=0; c<BindingVector->Count; c++) {
 155     RpcBinding* bind = (RpcBinding*)(BindingVector->BindingH[c]);
 156     TRACE(" protseq[%ld]=%s\n", c, debugstr_a(bind->Protseq));
 157     TRACE(" endpoint[%ld]=%s\n", c, debugstr_a(bind->Endpoint));
 158   }
 159   if (UuidVector) {
 160     for (c=0; c<UuidVector->Count; c++)
 161       TRACE(" obj[%ld]=%s\n", c, debugstr_guid(UuidVector->Uuid[c]));
 162   }
 163
 164   /* construct the message to rpcss */
 165   msg.message_type = RPCSS_NP_MESSAGE_TYPEID_UNREGISTEREPMSG;
 166   msg.message.unregisterepmsg.iface = If->InterfaceId;
 167
 168   msg.message.unregisterepmsg.object_count = (UuidVector) ? UuidVector->Count : 0;
 169   msg.message.unregisterepmsg.binding_count = BindingVector->Count;
 170
 171   /* calculate vardata payload size */
 172   msg.vardata_payload_size = msg.message.unregisterepmsg.object_count * sizeof(UUID);
 173   for (c=0; c < msg.message.unregisterepmsg.binding_count; c++) {
 174     RpcBinding *bind = (RpcBinding *)(BindingVector->BindingH[c]);
 175     msg.vardata_payload_size += strlen(bind->Protseq) + 1;
 176     msg.vardata_payload_size += strlen(bind->Endpoint) + 1;
 177   }
 178
 179   /* allocate the payload buffer */
 180   vp = vardata_payload = LocalAlloc(LPTR, msg.vardata_payload_size);
 181   if (!vardata_payload)
 182     return RPC_S_OUT_OF_MEMORY;
 183
 184   /* populate the payload data */
 185   for (c=0; c < msg.message.unregisterepmsg.object_count; c++) {
 186     CopyMemory(vp, UuidVector->Uuid[c], sizeof(UUID));
 187     vp += sizeof(UUID);
 188   }
 189
 190   for (c=0; c < msg.message.unregisterepmsg.binding_count; c++) {
 191     RpcBinding *bind = (RpcBinding*)(BindingVector->BindingH[c]);
 192     unsigned long pslen = strlen(bind->Protseq) + 1, eplen = strlen(bind->Endpoint) + 1;
 193     CopyMemory(vp, bind->Protseq, pslen);
 194     vp += pslen;
 195     CopyMemory(vp, bind->Endpoint, eplen);
 196     vp += eplen;
 197   }
 198
 199   /* send our request */
 200   if (!RPCRT4_RPCSSOnDemandCall(&msg, vardata_payload, &reply))
 201     rslt = RPC_S_OUT_OF_MEMORY;
 202
 203   /* free the payload buffer */
 204   LocalFree(vardata_payload);
 205
 206   return rslt;
 207 }
 208
 209 /***********************************************************************
 210  *             RpcEpResolveBinding (RPCRT4.@)
 211  */
 212 RPC_STATUS WINAPI RpcEpResolveBinding( RPC_BINDING_HANDLE Binding, RPC_IF_HANDLE IfSpec )
 213 {
 214   RPCSS_NP_MESSAGE msg;
 215   RPCSS_NP_REPLY reply;
 216   PRPC_CLIENT_INTERFACE If = (PRPC_CLIENT_INTERFACE)IfSpec;
 217   RpcBinding* bind = (RpcBinding*)Binding;
 218
 219   TRACE("(%p,%p)\n", Binding, IfSpec);
 220   TRACE(" protseq=%s\n", debugstr_a(bind->Protseq));
 221   TRACE(" obj=%s\n", debugstr_guid(&bind->ObjectUuid));
 222   TRACE(" ifid=%s\n", debugstr_guid(&If->InterfaceId.SyntaxGUID));
 223
 224   /* FIXME: totally untested */
 225
 226   /* just return for fully bound handles */
 227   if (bind->Endpoint && (bind->Endpoint[0] != '\0'))
 228     return RPC_S_OK;
 229
 230   /* construct the message to rpcss */
 231   msg.message_type = RPCSS_NP_MESSAGE_TYPEID_RESOLVEEPMSG;
 232   msg.message.resolveepmsg.iface = If->InterfaceId;
 233   msg.message.resolveepmsg.object = bind->ObjectUuid;
 234
 235   msg.vardata_payload_size = strlen(bind->Protseq) + 1;
 236
 237   /* send the message */
 238   if (!RPCRT4_RPCSSOnDemandCall(&msg, bind->Protseq, &reply))
 239     return RPC_S_OUT_OF_MEMORY;
 240
 241   /* empty-string result means not registered */
 242   if (reply.as_string[0] == '\0')
 243     return EPT_S_NOT_REGISTERED;
 244
 245   /* otherwise we fully bind the handle & return RPC_S_OK */
 246   return RPCRT4_ResolveBinding(Binding, reply.as_string);
 247 }
 248
 249 typedef unsigned int unsigned32;
 250 typedef struct twr_t
 251     {
 252     unsigned32 tower_length;
 253     /* [size_is] */ BYTE tower_octet_string[ 1 ];
 254     }   twr_t;
 255
 256 /***********************************************************************
 257  *             TowerExplode (RPCRT4.@)
 258  */
 259 RPC_STATUS WINAPI TowerExplode(
 260     const twr_t *tower, PRPC_SYNTAX_IDENTIFIER object, PRPC_SYNTAX_IDENTIFIER syntax,
 261     char **protseq, char **endpoint, char **address)
 262 {
 263     size_t tower_size;
 264     RPC_STATUS status;
 265     const unsigned char *p;
 266     u_int16 floor_count;
 267     const twr_uuid_floor_t *object_floor;
 268     const twr_uuid_floor_t *syntax_floor;
 269
 270     if (protseq)
 271         *protseq = NULL;
 272     if (endpoint)
 273         *endpoint = NULL;
 274     if (address)
 275         *address = NULL;
 276
 277     tower_size = tower->tower_length;
 278
 279     if (tower_size < sizeof(u_int16))
 280         return EPT_S_NOT_REGISTERED;
 281
 282     p = &tower->tower_octet_string[0];
 283
 284     floor_count = *(const u_int16 *)p;
 285     p += sizeof(u_int16);
 286     tower_size -= sizeof(u_int16);
 287     TRACE("floor_count: %d\n", floor_count);
 288     /* FIXME: should we do something with the floor count? at the moment we don't */
 289
 290     if (tower_size < sizeof(*object_floor) + sizeof(*syntax_floor))
 291         return EPT_S_NOT_REGISTERED;
 292
 293     object_floor = (const twr_uuid_floor_t *)p;
 294     p += sizeof(*object_floor);
 295     tower_size -= sizeof(*object_floor);
 296     syntax_floor = (const twr_uuid_floor_t *)p;
 297     p += sizeof(*syntax_floor);
 298     tower_size -= sizeof(*syntax_floor);
 299
 300     if ((object_floor->count_lhs != sizeof(object_floor->protid) +
 301         sizeof(object_floor->uuid) + sizeof(object_floor->major_version)) ||
 302         (object_floor->protid != EPM_PROTOCOL_UUID) ||
 303         (object_floor->count_rhs != sizeof(object_floor->minor_version)))
 304         return EPT_S_NOT_REGISTERED;
 305
 306     if ((syntax_floor->count_lhs != sizeof(syntax_floor->protid) +
 307         sizeof(syntax_floor->uuid) + sizeof(syntax_floor->major_version)) ||
 308         (syntax_floor->protid != EPM_PROTOCOL_UUID) ||
 309         (syntax_floor->count_rhs != sizeof(syntax_floor->minor_version)))
 310         return EPT_S_NOT_REGISTERED;
 311
 312     status = RpcTransport_ParseTopOfTower(p, tower_size, protseq, address, endpoint);
 313     if ((status == RPC_S_OK) && syntax && object)
 314     {
 315         syntax->SyntaxGUID = syntax_floor->uuid;
 316         syntax->SyntaxVersion.MajorVersion = syntax_floor->major_version;
 317         syntax->SyntaxVersion.MinorVersion = syntax_floor->minor_version;
 318         object->SyntaxGUID = object_floor->uuid;
 319         object->SyntaxVersion.MajorVersion = object_floor->major_version;
 320         object->SyntaxVersion.MinorVersion = object_floor->minor_version;
 321     }
 322     return status;
 323 }
 324
 325 /***********************************************************************
 326  *             TowerConstruct (RPCRT4.@)
 327  */
 328 RPC_STATUS WINAPI TowerConstruct(
 329     const RPC_SYNTAX_IDENTIFIER *object, const RPC_SYNTAX_IDENTIFIER *syntax,
 330     const char *protseq, const char *endpoint, const char *address,
 331     twr_t **tower)
 332 {
 333     size_t tower_size;
 334     RPC_STATUS status;
 335     unsigned char *p;
 336     twr_uuid_floor_t *object_floor;
 337     twr_uuid_floor_t *syntax_floor;
 338
 339     *tower = NULL;
 340
 341     status = RpcTransport_GetTopOfTower(NULL, &tower_size, protseq, address, endpoint);
 342
 343     if (status != RPC_S_OK)
 344         return status;
 345
 346     tower_size += sizeof(u_int16) + sizeof(*object_floor) + sizeof(*syntax_floor);
 347     *tower = I_RpcAllocate(FIELD_OFFSET(twr_t, tower_octet_string[tower_size]));
 348     if (!*tower)
 349         return RPC_S_OUT_OF_RESOURCES;
 350
 351     (*tower)->tower_length = tower_size;
 352     p = &(*tower)->tower_octet_string[0];
 353     *(u_int16 *)p = 5; /* number of floors */
 354     p += sizeof(u_int16);
 355     object_floor = (twr_uuid_floor_t *)p;
 356     p += sizeof(*object_floor);
 357     syntax_floor = (twr_uuid_floor_t *)p;
 358     p += sizeof(*syntax_floor);
 359
 360     object_floor->count_lhs = sizeof(object_floor->protid) + sizeof(object_floor->uuid) +
 361                               sizeof(object_floor->major_version);
 362     object_floor->protid = EPM_PROTOCOL_UUID;
 363     object_floor->count_rhs = sizeof(object_floor->minor_version);
 364     object_floor->uuid = object->SyntaxGUID;
 365     object_floor->major_version = object->SyntaxVersion.MajorVersion;
 366     object_floor->minor_version = object->SyntaxVersion.MinorVersion;
 367
 368     syntax_floor->count_lhs = sizeof(syntax_floor->protid) + sizeof(syntax_floor->uuid) +
 369                               sizeof(syntax_floor->major_version);
 370     syntax_floor->protid = EPM_PROTOCOL_UUID;
 371     syntax_floor->count_rhs = sizeof(syntax_floor->minor_version);
 372     syntax_floor->uuid = syntax->SyntaxGUID;
 373     syntax_floor->major_version = syntax->SyntaxVersion.MajorVersion;
 374     syntax_floor->minor_version = syntax->SyntaxVersion.MinorVersion;
 375
 376     status = RpcTransport_GetTopOfTower(p, &tower_size, protseq, address, endpoint);
 377     if (status != RPC_S_OK)
 378     {
 379         I_RpcFree(*tower);
 380         *tower = NULL;
 381         return status;
 382     }
 383     return RPC_S_OK;
 384 }