source4/librpc/rpc/dcerpc_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    dcerpc utility functions
   5
   6    Copyright (C) Andrew Tridgell 2003
   7    Copyright (C) Jelmer Vernooij 2004
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "includes.h"
  25 #include "system/network.h"
  26 #include "librpc/gen_ndr/ndr_epmapper.h"
  27
  28 /*
  29   find the pipe name for a local IDL interface
  30 */
  31 const char *idl_pipe_name(const char *uuid, uint32_t if_version)
  32 {
  33         const struct dcerpc_interface_list *l;
  34         for (l=librpc_dcerpc_pipes();l;l=l->next) {
  35                 if (strcasecmp(l->table->uuid, uuid) == 0 &&
  36                     l->table->if_version == if_version) {
  37                         return l->table->name;
  38                 }
  39         }
  40         return "UNKNOWN";
  41 }
  42
  43 /*
  44   find the number of calls defined by local IDL
  45 */
  46 int idl_num_calls(const char *uuid, uint32_t if_version)
  47 {
  48         const struct dcerpc_interface_list *l;
  49         for (l=librpc_dcerpc_pipes();l;l=l->next){
  50                 if (strcasecmp(l->table->uuid, uuid) == 0 &&
  51                     l->table->if_version == if_version) {
  52                         return l->table->num_calls;
  53                 }
  54         }
  55         return -1;
  56 }
  57
  58
  59 /*
  60   find a dcerpc interface by name
  61 */
  62 const struct dcerpc_interface_table *idl_iface_by_name(const char *name)
  63 {
  64         const struct dcerpc_interface_list *l;
  65         for (l=librpc_dcerpc_pipes();l;l=l->next) {
  66                 if (strcasecmp(l->table->name, name) == 0) {
  67                         return l->table;
  68                 }
  69         }
  70         return NULL;
  71 }
  72
  73 /*
  74   find a dcerpc interface by uuid
  75 */
  76 const struct dcerpc_interface_table *idl_iface_by_uuid(const char *uuid)
  77 {
  78         const struct dcerpc_interface_list *l;
  79         for (l=librpc_dcerpc_pipes();l;l=l->next) {
  80                 if (strcasecmp(l->table->uuid, uuid) == 0) {
  81                         return l->table;
  82                 }
  83         }
  84         return NULL;
  85 }
  86
  87
  88 /*
  89    push a dcerpc_packet into a blob, potentially with auth info
  90 */
  91 NTSTATUS dcerpc_push_auth(DATA_BLOB *blob, TALLOC_CTX *mem_ctx,
  92                           struct dcerpc_packet *pkt,
  93                           struct dcerpc_auth *auth_info)
  94 {
  95         NTSTATUS status;
  96         struct ndr_push *ndr;
  97
  98         ndr = ndr_push_init_ctx(mem_ctx);
  99         if (!ndr) {
 100                 return NT_STATUS_NO_MEMORY;
 101         }
 102
 103         if (!(pkt->drep[0] & DCERPC_DREP_LE)) {
 104                 ndr->flags |= LIBNDR_FLAG_BIGENDIAN;
 105         }
 106
 107         if (pkt->pfc_flags & DCERPC_PFC_FLAG_ORPC) {
 108                 ndr->flags |= LIBNDR_FLAG_OBJECT_PRESENT;
 109         }
 110
 111         if (auth_info) {
 112                 pkt->auth_length = auth_info->credentials.length;
 113         } else {
 114                 pkt->auth_length = 0;
 115         }
 116
 117         status = ndr_push_dcerpc_packet(ndr, NDR_SCALARS|NDR_BUFFERS, pkt);
 118         if (!NT_STATUS_IS_OK(status)) {
 119                 return status;
 120         }
 121
 122         if (auth_info) {
 123                 status = ndr_push_dcerpc_auth(ndr, NDR_SCALARS|NDR_BUFFERS, auth_info);
 124         }
 125
 126         *blob = ndr_push_blob(ndr);
 127
 128         /* fill in the frag length */
 129         dcerpc_set_frag_length(blob, blob->length);
 130
 131         return NT_STATUS_OK;
 132 }
 133
 134 #define MAX_PROTSEQ             10
 135
 136 static const struct {
 137         const char *name;
 138         enum dcerpc_transport_t transport;
 139         int num_protocols;
 140         enum epm_protocol protseq[MAX_PROTSEQ];
 141 } transports[] = {
 142         { "ncacn_np",     NCACN_NP, 3,
 143                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SMB, EPM_PROTOCOL_NETBIOS }},
 144         { "ncacn_ip_tcp", NCACN_IP_TCP, 3,
 145                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_TCP, EPM_PROTOCOL_IP } },
 146         { "ncacn_http", NCACN_HTTP, 3,
 147                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_HTTP, EPM_PROTOCOL_IP } },
 148         { "ncadg_ip_udp", NCACN_IP_UDP, 3,
 149                 { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_UDP, EPM_PROTOCOL_IP } },
 150         { "ncalrpc", NCALRPC, 2,
 151                 { EPM_PROTOCOL_NCALRPC, EPM_PROTOCOL_PIPE } },
 152         { "ncacn_unix_stream", NCACN_UNIX_STREAM, 2,
 153                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_UNIX_DS } },
 154         { "ncadg_unix_dgram", NCADG_UNIX_DGRAM, 2,
 155                 { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_UNIX_DS } },
 156         { "ncacn_at_dsp", NCACN_AT_DSP, 3,
 157                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_APPLETALK, EPM_PROTOCOL_DSP } },
 158         { "ncadg_at_ddp", NCADG_AT_DDP, 3,
 159                 { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_APPLETALK, EPM_PROTOCOL_DDP } },
 160         { "ncacn_vns_ssp", NCACN_VNS_SPP, 3,
 161                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_STREETTALK, EPM_PROTOCOL_VINES_SPP } },
 162         { "ncacn_vns_ipc", NCACN_VNS_IPC, 3,
 163                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_STREETTALK, EPM_PROTOCOL_VINES_IPC }, },
 164         { "ncadg_ipx", NCADG_IPX, 2,
 165                 { EPM_PROTOCOL_NCADG, EPM_PROTOCOL_IPX },
 166         },
 167         { "ncacn_spx", NCACN_SPX, 2,
 168                 { EPM_PROTOCOL_NCACN, EPM_PROTOCOL_SPX },
 169         },
 170 };
 171
 172 static const struct {
 173         const char *name;
 174         uint32_t flag;
 175 } ncacn_options[] = {
 176         {"sign", DCERPC_SIGN},
 177         {"seal", DCERPC_SEAL},
 178         {"connect", DCERPC_CONNECT},
 179         {"spnego", DCERPC_AUTH_SPNEGO},
 180         {"krb5", DCERPC_AUTH_KRB5},
 181         {"validate", DCERPC_DEBUG_VALIDATE_BOTH},
 182         {"print", DCERPC_DEBUG_PRINT_BOTH},
 183         {"padcheck", DCERPC_DEBUG_PAD_CHECK},
 184         {"bigendian", DCERPC_PUSH_BIGENDIAN}
 185 };
 186
 187 const char *epm_floor_string(TALLOC_CTX *mem_ctx, struct epm_floor *fl)
 188 {
 189         struct GUID uuid;
 190         uint16_t if_version;
 191         NTSTATUS status;
 192
 193         switch(fl->lhs.protocol) {
 194                 case EPM_PROTOCOL_UUID:
 195                         status = dcerpc_floor_get_lhs_data(fl, &uuid, &if_version);
 196                         if (NT_STATUS_IS_OK(status)) {
 197                                 /* lhs is used: UUID */
 198                                 char *uuidstr;
 199
 200                                 uuidstr = GUID_string(mem_ctx, &uuid);
 201
 202                                 if (strcasecmp(uuidstr, NDR_GUID) == 0) {
 203                                         return "NDR";
 204                                 }
 205
 206                                 return talloc_asprintf(mem_ctx, " uuid %s/0x%02x", uuidstr, if_version);
 207                         } else { /* IPX */
 208                                 return talloc_asprintf(mem_ctx, "IPX:%s",
 209                                                 data_blob_hex_string(mem_ctx, &fl->rhs.uuid.unknown));
 210                         }
 211
 212                 case EPM_PROTOCOL_NCACN:
 213                         return "RPC-C";
 214
 215                 case EPM_PROTOCOL_NCADG:
 216                         return "RPC";
 217
 218                 case EPM_PROTOCOL_NCALRPC:
 219                         return "NCALRPC";
 220
 221                 case EPM_PROTOCOL_DNET_NSP:
 222                         return "DNET/NSP";
 223
 224                 case EPM_PROTOCOL_IP:
 225                         return talloc_asprintf(mem_ctx, "IP:%s", fl->rhs.ip.ipaddr);
 226
 227                 case EPM_PROTOCOL_PIPE:
 228                         return talloc_asprintf(mem_ctx, "PIPE:%s", fl->rhs.pipe.path);
 229
 230                 case EPM_PROTOCOL_SMB:
 231                         return talloc_asprintf(mem_ctx, "SMB:%s", fl->rhs.smb.unc);
 232
 233                 case EPM_PROTOCOL_UNIX_DS:
 234                         return talloc_asprintf(mem_ctx, "Unix:%s", fl->rhs.unix_ds.path);
 235
 236                 case EPM_PROTOCOL_NETBIOS:
 237                         return talloc_asprintf(mem_ctx, "NetBIOS:%s", fl->rhs.netbios.name);
 238
 239                 case EPM_PROTOCOL_NETBEUI:
 240                         return "NETBeui";
 241
 242                 case EPM_PROTOCOL_SPX:
 243                         return "SPX";
 244
 245                 case EPM_PROTOCOL_NB_IPX:
 246                         return "NB_IPX";
 247
 248                 case EPM_PROTOCOL_HTTP:
 249                         return talloc_asprintf(mem_ctx, "HTTP:%d", fl->rhs.http.port);
 250
 251                 case EPM_PROTOCOL_TCP:
 252                         return talloc_asprintf(mem_ctx, "TCP:%d", fl->rhs.tcp.port);
 253
 254                 case EPM_PROTOCOL_UDP:
 255                         return talloc_asprintf(mem_ctx, "UDP:%d", fl->rhs.udp.port);
 256
 257                 default:
 258                         return talloc_asprintf(mem_ctx, "UNK(%02x):", fl->lhs.protocol);
 259         }
 260 }
 261
 262
 263 /*
 264   form a binding string from a binding structure
 265 */
 266 const char *dcerpc_binding_string(TALLOC_CTX *mem_ctx, const struct dcerpc_binding *b)
 267 {
 268         char *s = talloc_strdup(mem_ctx, "");
 269         int i;
 270         const char *t_name=NULL;
 271
 272         for (i=0;i<ARRAY_SIZE(transports);i++) {
 273                 if (transports[i].transport == b->transport) {
 274                         t_name = transports[i].name;
 275                 }
 276         }
 277         if (!t_name) {
 278                 return NULL;
 279         }
 280
 281         if (!GUID_all_zero(&b->object)) {
 282                 s = talloc_asprintf(s, "%s@",
 283                                     GUID_string(mem_ctx, &b->object));
 284         }
 285
 286         s = talloc_asprintf_append(s, "%s:", t_name);
 287         if (!s) return NULL;
 288
 289         if (b->host) {
 290                 s = talloc_asprintf_append(s, "%s", b->host);
 291         }
 292
 293         if (!b->endpoint && !b->options && !b->flags) {
 294                 return s;
 295         }
 296
 297         s = talloc_asprintf_append(s, "[");
 298
 299         if (b->endpoint) {
 300                 s = talloc_asprintf_append(s, "%s", b->endpoint);
 301         }
 302
 303         /* this is a *really* inefficent way of dealing with strings,
 304            but this is rarely called and the strings are always short,
 305            so I don't care */
 306         for (i=0;b->options && b->options[i];i++) {
 307                 s = talloc_asprintf_append(s, ",%s", b->options[i]);
 308                 if (!s) return NULL;
 309         }
 310
 311         for (i=0;i<ARRAY_SIZE(ncacn_options);i++) {
 312                 if (b->flags & ncacn_options[i].flag) {
 313                         s = talloc_asprintf_append(s, ",%s", ncacn_options[i].name);
 314                         if (!s) return NULL;
 315                 }
 316         }
 317
 318         s = talloc_asprintf_append(s, "]");
 319
 320         return s;
 321 }
 322
 323 /*
 324   parse a binding string into a dcerpc_binding structure
 325 */
 326 NTSTATUS dcerpc_parse_binding(TALLOC_CTX *mem_ctx, const char *s, struct dcerpc_binding **b_out)
 327 {
 328         struct dcerpc_binding *b;
 329         char *options, *type;
 330         char *p;
 331         int i, j, comma_count;
 332
 333         b = talloc(mem_ctx, struct dcerpc_binding);
 334         if (!b) {
 335                 return NT_STATUS_NO_MEMORY;
 336         }
 337
 338         p = strchr(s, '@');
 339
 340         if (p && PTR_DIFF(p, s) == 36) { /* 36 is the length of a UUID */
 341                 NTSTATUS status;
 342
 343                 status = GUID_from_string(s, &b->object);
 344
 345                 if (NT_STATUS_IS_ERR(status)) {
 346                         DEBUG(0, ("Failed parsing UUID\n"));
 347                         return status;
 348                 }
 349
 350                 s = p + 1;
 351         } else {
 352                 ZERO_STRUCT(b->object);
 353         }
 354
 355         b->object_version = 0;
 356
 357         p = strchr(s, ':');
 358         if (!p) {
 359                 return NT_STATUS_INVALID_PARAMETER;
 360         }
 361
 362         type = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
 363         if (!type) {
 364                 return NT_STATUS_NO_MEMORY;
 365         }
 366
 367         for (i=0;i<ARRAY_SIZE(transports);i++) {
 368                 if (strcasecmp(type, transports[i].name) == 0) {
 369                         b->transport = transports[i].transport;
 370                         break;
 371                 }
 372         }
 373         if (i==ARRAY_SIZE(transports)) {
 374                 DEBUG(0,("Unknown dcerpc transport '%s'\n", type));
 375                 return NT_STATUS_INVALID_PARAMETER;
 376         }
 377
 378         s = p+1;
 379
 380         p = strchr(s, '[');
 381         if (p) {
 382                 b->host = talloc_strndup(b, s, PTR_DIFF(p, s));
 383                 options = talloc_strdup(mem_ctx, p+1);
 384                 if (options[strlen(options)-1] != ']') {
 385                         return NT_STATUS_INVALID_PARAMETER;
 386                 }
 387                 options[strlen(options)-1] = 0;
 388         } else {
 389                 b->host = talloc_strdup(b, s);
 390                 options = NULL;
 391         }
 392
 393         if (!b->host) {
 394                 return NT_STATUS_NO_MEMORY;
 395         }
 396
 397         b->options = NULL;
 398         b->flags = 0;
 399         b->endpoint = NULL;
 400
 401         if (!options) {
 402                 *b_out = b;
 403                 return NT_STATUS_OK;
 404         }
 405
 406         comma_count = count_chars(options, ',');
 407
 408         b->options = talloc_array(b, const char *, comma_count+2);
 409         if (!b->options) {
 410                 return NT_STATUS_NO_MEMORY;
 411         }
 412
 413         for (i=0; (p = strchr(options, ',')); i++) {
 414                 b->options[i] = talloc_strndup(b, options, PTR_DIFF(p, options));
 415                 if (!b->options[i]) {
 416                         return NT_STATUS_NO_MEMORY;
 417                 }
 418                 options = p+1;
 419         }
 420         b->options[i] = options;
 421         b->options[i+1] = NULL;
 422
 423         /* some options are pre-parsed for convenience */
 424         for (i=0;b->options[i];i++) {
 425                 for (j=0;j<ARRAY_SIZE(ncacn_options);j++) {
 426                         if (strcasecmp(ncacn_options[j].name, b->options[i]) == 0) {
 427                                 int k;
 428                                 b->flags |= ncacn_options[j].flag;
 429                                 for (k=i;b->options[k];k++) {
 430                                         b->options[k] = b->options[k+1];
 431                                 }
 432                                 i--;
 433                                 break;
 434                         }
 435                 }
 436         }
 437
 438         if (b->options[0]) {
 439                 /* Endpoint is first option */
 440                 b->endpoint = b->options[0];
 441                 if (strlen(b->endpoint) == 0) b->endpoint = NULL;
 442
 443                 for (i=0;b->options[i];i++) {
 444                         b->options[i] = b->options[i+1];
 445                 }
 446         }
 447
 448         if (b->options[0] == NULL)
 449                 b->options = NULL;
 450
 451         *b_out = b;
 452         return NT_STATUS_OK;
 453 }
 454
 455 NTSTATUS dcerpc_floor_get_lhs_data(struct epm_floor *floor, struct GUID *uuid, uint16_t *if_version)
 456 {
 457         TALLOC_CTX *mem_ctx = talloc_init("floor_get_lhs_data");
 458         struct ndr_pull *ndr = ndr_pull_init_blob(&floor->lhs.lhs_data, mem_ctx);
 459         NTSTATUS status;
 460
 461         ndr->flags |= LIBNDR_FLAG_NOALIGN;
 462
 463         status = ndr_pull_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, uuid);
 464         if (NT_STATUS_IS_ERR(status)) {
 465                 talloc_free(mem_ctx);
 466                 return status;
 467         }
 468
 469         status = ndr_pull_uint16(ndr, NDR_SCALARS, if_version);
 470
 471         talloc_free(mem_ctx);
 472
 473         return status;
 474 }
 475
 476 DATA_BLOB dcerpc_floor_pack_lhs_data(TALLOC_CTX *mem_ctx, struct GUID *uuid, uint32_t if_version)
 477 {
 478         struct ndr_push *ndr = ndr_push_init_ctx(mem_ctx);
 479
 480         ndr->flags |= LIBNDR_FLAG_NOALIGN;
 481
 482         ndr_push_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, uuid);
 483         ndr_push_uint16(ndr, NDR_SCALARS, if_version);
 484
 485         return ndr_push_blob(ndr);
 486 }
 487
 488 const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor)
 489 {
 490         switch (floor->lhs.protocol) {
 491         case EPM_PROTOCOL_TCP:
 492                 if (floor->rhs.tcp.port == 0) return NULL;
 493                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.tcp.port);
 494
 495         case EPM_PROTOCOL_UDP:
 496                 if (floor->rhs.udp.port == 0) return NULL;
 497                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.udp.port);
 498
 499         case EPM_PROTOCOL_HTTP:
 500                 if (floor->rhs.http.port == 0) return NULL;
 501                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.http.port);
 502
 503         case EPM_PROTOCOL_IP:
 504                 return talloc_strdup(mem_ctx, floor->rhs.ip.ipaddr);
 505
 506         case EPM_PROTOCOL_NCACN:
 507                 return NULL;
 508
 509         case EPM_PROTOCOL_NCADG:
 510                 return NULL;
 511
 512         case EPM_PROTOCOL_SMB:
 513                 if (strlen(floor->rhs.smb.unc) == 0) return NULL;
 514                 return talloc_strdup(mem_ctx, floor->rhs.smb.unc);
 515
 516         case EPM_PROTOCOL_PIPE:
 517                 if (strlen(floor->rhs.pipe.path) == 0) return NULL;
 518                 return talloc_strdup(mem_ctx, floor->rhs.pipe.path);
 519
 520         case EPM_PROTOCOL_NETBIOS:
 521                 if (strlen(floor->rhs.netbios.name) == 0) return NULL;
 522                 return talloc_strdup(mem_ctx, floor->rhs.netbios.name);
 523
 524         case EPM_PROTOCOL_NCALRPC:
 525                 return NULL;
 526
 527         case EPM_PROTOCOL_VINES_SPP:
 528                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.vines_spp.port);
 529
 530         case EPM_PROTOCOL_VINES_IPC:
 531                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.vines_ipc.port);
 532
 533         case EPM_PROTOCOL_STREETTALK:
 534                 return talloc_strdup(mem_ctx, floor->rhs.streettalk.streettalk);
 535
 536         case EPM_PROTOCOL_UNIX_DS:
 537                 if (strlen(floor->rhs.unix_ds.path) == 0) return NULL;
 538                 return talloc_strdup(mem_ctx, floor->rhs.unix_ds.path);
 539
 540         case EPM_PROTOCOL_NULL:
 541                 return NULL;
 542
 543         default:
 544                 DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
 545                 break;
 546         }
 547
 548         return NULL;
 549 }
 550
 551 static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor,  const char *data)
 552 {
 553         switch (floor->lhs.protocol) {
 554         case EPM_PROTOCOL_TCP:
 555                 floor->rhs.tcp.port = atoi(data);
 556                 return NT_STATUS_OK;
 557
 558         case EPM_PROTOCOL_UDP:
 559                 floor->rhs.udp.port = atoi(data);
 560                 return NT_STATUS_OK;
 561
 562         case EPM_PROTOCOL_HTTP:
 563                 floor->rhs.http.port = atoi(data);
 564                 return NT_STATUS_OK;
 565
 566         case EPM_PROTOCOL_IP:
 567                 floor->rhs.ip.ipaddr = talloc_strdup(mem_ctx, data);
 568                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.ip.ipaddr);
 569                 return NT_STATUS_OK;
 570
 571         case EPM_PROTOCOL_NCACN:
 572                 floor->rhs.ncacn.minor_version = 0;
 573                 return NT_STATUS_OK;
 574
 575         case EPM_PROTOCOL_NCADG:
 576                 floor->rhs.ncadg.minor_version = 0;
 577                 return NT_STATUS_OK;
 578
 579         case EPM_PROTOCOL_SMB:
 580                 floor->rhs.smb.unc = talloc_strdup(mem_ctx, data);
 581                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.smb.unc);
 582                 return NT_STATUS_OK;
 583
 584         case EPM_PROTOCOL_PIPE:
 585                 floor->rhs.pipe.path = talloc_strdup(mem_ctx, data);
 586                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.pipe.path);
 587                 return NT_STATUS_OK;
 588
 589         case EPM_PROTOCOL_NETBIOS:
 590                 floor->rhs.netbios.name = talloc_strdup(mem_ctx, data);
 591                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.netbios.name);
 592                 return NT_STATUS_OK;
 593
 594         case EPM_PROTOCOL_NCALRPC:
 595                 return NT_STATUS_OK;
 596
 597         case EPM_PROTOCOL_VINES_SPP:
 598                 floor->rhs.vines_spp.port = atoi(data);
 599                 return NT_STATUS_OK;
 600
 601         case EPM_PROTOCOL_VINES_IPC:
 602                 floor->rhs.vines_ipc.port = atoi(data);
 603                 return NT_STATUS_OK;
 604
 605         case EPM_PROTOCOL_STREETTALK:
 606                 floor->rhs.streettalk.streettalk = talloc_strdup(mem_ctx, data);
 607                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.streettalk.streettalk);
 608                 return NT_STATUS_OK;
 609
 610         case EPM_PROTOCOL_UNIX_DS:
 611                 floor->rhs.unix_ds.path = talloc_strdup(mem_ctx, data);
 612                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.unix_ds.path);
 613                 return NT_STATUS_OK;
 614
 615         case EPM_PROTOCOL_NULL:
 616                 return NT_STATUS_OK;
 617
 618         default:
 619                 DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
 620                 break;
 621         }
 622
 623         return NT_STATUS_NOT_SUPPORTED;
 624 }
 625
 626 enum dcerpc_transport_t dcerpc_transport_by_endpoint_protocol(int prot)
 627 {
 628         int i;
 629
 630         /* Find a transport that has 'prot' as 4th protocol */
 631         for (i=0;i<ARRAY_SIZE(transports);i++) {
 632                 if (transports[i].num_protocols >= 2 &&
 633                         transports[i].protseq[1] == prot) {
 634                         return transports[i].transport;
 635                 }
 636         }
 637
 638         /* Unknown transport */
 639         return -1;
 640 }
 641
 642 enum dcerpc_transport_t dcerpc_transport_by_tower(struct epm_tower *tower)
 643 {
 644         int i;
 645
 646         /* Find a transport that matches this tower */
 647         for (i=0;i<ARRAY_SIZE(transports);i++) {
 648                 int j;
 649                 if (transports[i].num_protocols != tower->num_floors - 2) {
 650                         continue;
 651                 }
 652
 653                 for (j = 0; j < transports[i].num_protocols; j++) {
 654                         if (transports[i].protseq[j] != tower->floors[j+2].lhs.protocol) {
 655                                 break;
 656                         }
 657                 }
 658
 659                 if (j == transports[i].num_protocols) {
 660                         return transports[i].transport;
 661                 }
 662         }
 663
 664         /* Unknown transport */
 665         return -1;
 666 }
 667
 668 NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx, struct epm_tower *tower, struct dcerpc_binding **b_out)
 669 {
 670         NTSTATUS status;
 671         struct dcerpc_binding *binding;
 672
 673         binding = talloc(mem_ctx, struct dcerpc_binding);
 674         NT_STATUS_HAVE_NO_MEMORY(binding);
 675
 676         ZERO_STRUCT(binding->object);
 677         binding->options = NULL;
 678         binding->host = NULL;
 679         binding->flags = 0;
 680
 681         binding->transport = dcerpc_transport_by_tower(tower);
 682
 683         if (binding->transport == -1) {
 684                 return NT_STATUS_NOT_SUPPORTED;
 685         }
 686
 687         if (tower->num_floors < 1) {
 688                 return NT_STATUS_OK;
 689         }
 690
 691         /* Set object uuid */
 692         status = dcerpc_floor_get_lhs_data(&tower->floors[0], &binding->object, &binding->object_version);
 693
 694         if (!NT_STATUS_IS_OK(status)) {
 695                 DEBUG(1, ("Error pulling object uuid and version: %s", nt_errstr(status)));
 696                 return status;
 697         }
 698
 699         /* Ignore floor 1, it contains the NDR version info */
 700
 701         binding->options = NULL;
 702
 703         /* Set endpoint */
 704         if (tower->num_floors >= 4) {
 705                 binding->endpoint = dcerpc_floor_get_rhs_data(mem_ctx, &tower->floors[3]);
 706         } else {
 707                 binding->endpoint = NULL;
 708         }
 709
 710         /* Set network address */
 711         if (tower->num_floors >= 5) {
 712                 binding->host = dcerpc_floor_get_rhs_data(mem_ctx, &tower->floors[4]);
 713         }
 714         *b_out = binding;
 715         return NT_STATUS_OK;
 716 }
 717
 718 NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding, struct epm_tower *tower)
 719 {
 720         const enum epm_protocol *protseq = NULL;
 721         int num_protocols = -1, i;
 722         struct GUID ndr_guid;
 723         NTSTATUS status;
 724
 725         /* Find transport */
 726         for (i=0;i<ARRAY_SIZE(transports);i++) {
 727                 if (transports[i].transport == binding->transport) {
 728                         protseq = transports[i].protseq;
 729                         num_protocols = transports[i].num_protocols;
 730                         break;
 731                 }
 732         }
 733
 734         if (num_protocols == -1) {
 735                 DEBUG(0, ("Unable to find transport with id '%d'\n", binding->transport));
 736                 return NT_STATUS_UNSUCCESSFUL;
 737         }
 738
 739         tower->num_floors = 2 + num_protocols;
 740         tower->floors = talloc_array(mem_ctx, struct epm_floor, tower->num_floors);
 741
 742         /* Floor 0 */
 743         tower->floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
 744
 745         tower->floors[0].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &binding->object, binding->object_version);
 746
 747         tower->floors[0].rhs.uuid.unknown = data_blob_talloc_zero(mem_ctx, 2);
 748
 749         /* Floor 1 */
 750         tower->floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
 751
 752         status = GUID_from_string(NDR_GUID, &ndr_guid);
 753         if (NT_STATUS_IS_ERR(status)) {
 754                 return status;
 755         }
 756
 757         tower->floors[1].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &ndr_guid, NDR_GUID_VERSION);
 758
 759         tower->floors[1].rhs.uuid.unknown = data_blob_talloc_zero(mem_ctx, 2);
 760
 761         /* Floor 2 to num_protocols */
 762         for (i = 0; i < num_protocols; i++) {
 763                 tower->floors[2 + i].lhs.protocol = protseq[i];
 764                 tower->floors[2 + i].lhs.lhs_data = data_blob_talloc(mem_ctx, NULL, 0);
 765                 ZERO_STRUCT(tower->floors[2 + i].rhs);
 766                 dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[2 + i], "");
 767         }
 768
 769         /* The 4th floor contains the endpoint */
 770         if (num_protocols >= 2 && binding->endpoint) {
 771                 status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[3], binding->endpoint);
 772                 if (NT_STATUS_IS_ERR(status)) {
 773                         return status;
 774                 }
 775         }
 776
 777         /* The 5th contains the network address */
 778         if (num_protocols >= 3 && binding->host) {
 779                 status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4], binding->host);
 780                 if (NT_STATUS_IS_ERR(status)) {
 781                         return status;
 782                 }
 783         }
 784
 785         return NT_STATUS_OK;
 786 }
 787
 788 NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding,
 789                                 const char *uuid, uint_t version)
 790 {
 791         struct dcerpc_pipe *p;
 792         NTSTATUS status;
 793         struct epm_Map r;
 794         struct policy_handle handle;
 795         struct GUID guid;
 796         struct epm_twr_t twr, *twr_r;
 797         struct dcerpc_binding *epmapper_binding;
 798         const struct dcerpc_interface_table *table = idl_iface_by_uuid(uuid);
 799         int i;
 800
 801         /* First, check if there is a default endpoint specified in the IDL */
 802
 803         if (table) {
 804                 struct dcerpc_binding *default_binding;
 805
 806                 binding->authservice = talloc_strdup(binding, table->authservices->names[0]);
 807
 808                 /* Find one of the default pipes for this interface */
 809                 for (i = 0; i < table->endpoints->count; i++) {
 810                         status = dcerpc_parse_binding(mem_ctx, table->endpoints->names[i], &default_binding);
 811
 812                         if (NT_STATUS_IS_OK(status)) {
 813                                 if (default_binding->transport == binding->transport && default_binding->endpoint) {
 814                                         binding->endpoint = talloc_reference(binding, default_binding->endpoint);
 815                                         talloc_free(default_binding);
 816                                         return NT_STATUS_OK;
 817                                 } else {
 818                                         talloc_free(default_binding);
 819                                 }
 820                         }
 821                 }
 822         }
 823
 824         epmapper_binding = talloc_zero(mem_ctx, struct dcerpc_binding);
 825         if (!epmapper_binding) {
 826                 return NT_STATUS_NO_MEMORY;
 827         }
 828
 829         epmapper_binding->transport = binding->transport;
 830         epmapper_binding->host = talloc_reference(epmapper_binding,
 831                                                   binding->host);
 832         epmapper_binding->options = NULL;
 833         epmapper_binding->flags = 0;
 834         epmapper_binding->endpoint = NULL;
 835         epmapper_binding->authservice = NULL;
 836
 837         status = dcerpc_pipe_connect_b(&p,
 838                                        epmapper_binding,
 839                                        DCERPC_EPMAPPER_UUID,
 840                                        DCERPC_EPMAPPER_VERSION,
 841                                        NULL, NULL, NULL, NULL);
 842
 843         if (!NT_STATUS_IS_OK(status)) {
 844                 return status;
 845         }
 846
 847         ZERO_STRUCT(handle);
 848         ZERO_STRUCT(guid);
 849
 850         status = GUID_from_string(uuid, &binding->object);
 851         if (NT_STATUS_IS_ERR(status)) {
 852                 return status;
 853         }
 854
 855         binding->object_version = version;
 856
 857         status = dcerpc_binding_build_tower(p, binding, &twr.tower);
 858         if (NT_STATUS_IS_ERR(status)) {
 859                 return status;
 860         }
 861
 862         /* with some nice pretty paper around it of course */
 863         r.in.object = &guid;
 864         r.in.map_tower = &twr;
 865         r.in.entry_handle = &handle;
 866         r.in.max_towers = 1;
 867         r.out.entry_handle = &handle;
 868
 869         status = dcerpc_epm_Map(p, p, &r);
 870         if (!NT_STATUS_IS_OK(status)) {
 871                 dcerpc_pipe_close(p);
 872                 return status;
 873         }
 874         if (r.out.result != 0 || r.out.num_towers != 1) {
 875                 dcerpc_pipe_close(p);
 876                 return NT_STATUS_PORT_UNREACHABLE;
 877         }
 878
 879         twr_r = r.out.towers[0].twr;
 880         if (!twr_r) {
 881                 dcerpc_pipe_close(p);
 882                 return NT_STATUS_PORT_UNREACHABLE;
 883         }
 884
 885         if (twr_r->tower.num_floors != twr.tower.num_floors ||
 886             twr_r->tower.floors[3].lhs.protocol != twr.tower.floors[3].lhs.protocol) {
 887                 dcerpc_pipe_close(p);
 888                 return NT_STATUS_PORT_UNREACHABLE;
 889         }
 890
 891         binding->endpoint = talloc_reference(binding, dcerpc_floor_get_rhs_data(mem_ctx, &twr_r->tower.floors[3]));
 892
 893         dcerpc_pipe_close(p);
 894
 895         return NT_STATUS_OK;
 896 }
 897
 898
 899 /*
 900    perform an authenticated bind if needed
 901 */
 902 NTSTATUS dcerpc_pipe_auth(struct dcerpc_pipe *p,
 903                           struct dcerpc_binding *binding,
 904                           const char *pipe_uuid,
 905                           uint32_t pipe_version,
 906                           const char *workstation,
 907                           const char *domain,
 908                           const char *username,
 909                           const char *password)
 910 {
 911         NTSTATUS status;
 912         p->conn->flags = binding->flags;
 913
 914         /* remember the binding string for possible secondary connections */
 915         p->conn->binding_string = dcerpc_binding_string(p, binding);
 916
 917         if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
 918                 status = dcerpc_bind_auth_schannel(p, pipe_uuid, pipe_version,
 919                                                    domain, workstation,
 920                                                    username, password);
 921         } else if (username && username[0]) {
 922                 uint8_t auth_type;
 923                 if (binding->flags & DCERPC_AUTH_SPNEGO) {
 924                         auth_type = DCERPC_AUTH_TYPE_SPNEGO;
 925                 } else if (binding->flags & DCERPC_AUTH_KRB5) {
 926                         auth_type = DCERPC_AUTH_TYPE_KRB5;
 927                 } else {
 928                         auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
 929                 }
 930
 931                 status = dcerpc_bind_auth_password(p, pipe_uuid, pipe_version,
 932                                                    workstation,
 933                                                    domain, username, password,
 934                                                    auth_type,
 935                                                    binding->authservice);
 936         } else {
 937                 status = dcerpc_bind_auth_none(p, pipe_uuid, pipe_version);
 938         }
 939
 940         if (!NT_STATUS_IS_OK(status)) {
 941                 DEBUG(0,("Failed to bind to uuid %s - %s\n", pipe_uuid, nt_errstr(status)));
 942         }
 943         return status;
 944 }
 945
 946
 947 /* open a rpc connection to a rpc pipe on SMB using the binding
 948    structure to determine the endpoint and options */
 949 static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **pp,
 950                                              struct dcerpc_binding *binding,
 951                                              const char *pipe_uuid,
 952                                              uint32_t pipe_version,
 953                                              const char *workstation,
 954                                              const char *domain,
 955                                              const char *username,
 956                                              const char *password)
 957 {
 958         struct dcerpc_pipe *p;
 959         NTSTATUS status;
 960         struct smbcli_state *cli;
 961         const char *pipe_name = NULL;
 962         TALLOC_CTX *tmp_ctx;
 963
 964         *pp = NULL;
 965
 966         p = dcerpc_pipe_init(NULL);
 967         if (p == NULL) {
 968                 return NT_STATUS_NO_MEMORY;
 969         }
 970         tmp_ctx = talloc_new(p);
 971
 972         /* Look up identifier using the epmapper */
 973         if (!binding->endpoint) {
 974                 status = dcerpc_epm_map_binding(tmp_ctx, binding, pipe_uuid, pipe_version);
 975                 if (!NT_STATUS_IS_OK(status)) {
 976                         DEBUG(0,("Failed to map DCERPC/TCP NCACN_NP pipe for '%s' - %s\n",
 977                                  pipe_uuid, nt_errstr(status)));
 978                         talloc_free(p);
 979                         return status;
 980                 }
 981                 DEBUG(1,("Mapped to DCERPC/NP pipe %s\n", binding->endpoint));
 982         }
 983
 984         pipe_name = binding->endpoint;
 985
 986         if (!username || !username[0] ||
 987             (binding->flags & DCERPC_SCHANNEL_ANY)) {
 988                 status = smbcli_full_connection(p->conn, &cli, workstation,
 989                                                 binding->host,
 990                                                 "ipc$", NULL,
 991                                                 "", "", NULL);
 992         } else {
 993                 status = smbcli_full_connection(p->conn, &cli, workstation,
 994                                                 binding->host,
 995                                                 "ipc$", NULL,
 996                                                 username, domain,
 997                                                 password);
 998         }
 999         if (!NT_STATUS_IS_OK(status)) {
1000                 DEBUG(0,("Failed to connect to %s - %s\n", binding->host, nt_errstr(status)));
1001                 talloc_free(p);
1002                 return status;
1003         }
1004
1005         status = dcerpc_pipe_open_smb(p->conn, cli->tree, pipe_name);
1006         if (!NT_STATUS_IS_OK(status)) {
1007                 DEBUG(0,("Failed to open pipe %s - %s\n", pipe_name, nt_errstr(status)));
1008                 talloc_free(p);
1009                 return status;
1010         }
1011
1012         if (!(binding->flags & DCERPC_AUTH_OPTIONS)) {
1013                 username = NULL;
1014         }
1015
1016         (*pp) = p;
1017         talloc_free(tmp_ctx);
1018
1019         return NT_STATUS_OK;
1020 }
1021
1022 /* open a rpc connection to a rpc pipe on SMP using the binding
1023    structure to determine the endpoint and options */
1024 static NTSTATUS dcerpc_pipe_connect_ncalrpc(struct dcerpc_pipe **pp,
1025                                             struct dcerpc_binding *binding,
1026                                             const char *pipe_uuid,
1027                                             uint32_t pipe_version)
1028 {
1029         NTSTATUS status;
1030         struct dcerpc_pipe *p;
1031         TALLOC_CTX *tmp_ctx;
1032
1033         (*pp) = NULL;
1034
1035         p = dcerpc_pipe_init(NULL);
1036         if (p == NULL) {
1037                 return NT_STATUS_NO_MEMORY;
1038         }
1039         tmp_ctx = talloc_new(p);
1040
1041         /* Look up identifier using the epmapper */
1042         if (!binding->endpoint) {
1043                 status = dcerpc_epm_map_binding(tmp_ctx, binding, pipe_uuid, pipe_version);
1044                 if (!NT_STATUS_IS_OK(status)) {
1045                         DEBUG(0,("Failed to map DCERPC/TCP NCALRPC identifier for '%s' - %s\n",
1046                                  pipe_uuid, nt_errstr(status)));
1047                         talloc_free(p);
1048                         return status;
1049                 }
1050                 DEBUG(1,("Mapped to DCERPC/LRPC identifier %s\n", binding->endpoint));
1051         }
1052
1053         status = dcerpc_pipe_open_pipe(p->conn, binding->endpoint);
1054         if (!NT_STATUS_IS_OK(status)) {
1055                 DEBUG(0,("Failed to open ncalrpc pipe '%s' - %s\n",
1056                          binding->endpoint, nt_errstr(status)));
1057                 talloc_free(p);
1058                 return status;
1059         }
1060
1061         (*pp) = p;
1062         talloc_free(tmp_ctx);
1063
1064         return status;
1065 }
1066
1067
1068
1069 /* open a rpc connection to a rpc pipe on SMP using the binding
1070    structure to determine the endpoint and options */
1071 static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream(struct dcerpc_pipe **pp,
1072                                                       struct dcerpc_binding *binding,
1073                                                       const char *pipe_uuid,
1074                                                       uint32_t pipe_version)
1075 {
1076         NTSTATUS status;
1077         struct dcerpc_pipe *p;
1078
1079         (*pp) = NULL;
1080
1081         if (!binding->endpoint) {
1082                 DEBUG(0, ("Path to unix socket not specified\n"));
1083                 return NT_STATUS_INVALID_PARAMETER;
1084         }
1085
1086         p = dcerpc_pipe_init(NULL);
1087         if (p == NULL) {
1088                 return NT_STATUS_NO_MEMORY;
1089         }
1090
1091         status = dcerpc_pipe_open_unix_stream(p->conn, binding->endpoint);
1092         if (!NT_STATUS_IS_OK(status)) {
1093                 DEBUG(0,("Failed to open unix socket %s - %s\n",
1094                          binding->endpoint, nt_errstr(status)));
1095                 talloc_free(p);
1096                 return status;
1097         }
1098
1099         (*pp) = p;
1100
1101         return status;
1102 }
1103
1104 /* open a rpc connection to a rpc pipe on SMP using the binding
1105    structure to determine the endpoint and options */
1106 static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **pp,
1107                                                  struct dcerpc_binding *binding,
1108                                                  const char *pipe_uuid,
1109                                                  uint32_t pipe_version)
1110 {
1111         NTSTATUS status;
1112         uint32_t port = 0;
1113         struct dcerpc_pipe *p;
1114         TALLOC_CTX *tmp_ctx;
1115
1116         (*pp) = NULL;
1117
1118         p = dcerpc_pipe_init(NULL);
1119         if (p == NULL) {
1120                 return NT_STATUS_NO_MEMORY;
1121         }
1122         tmp_ctx = talloc_new(p);
1123
1124         if (!binding->endpoint) {
1125                 status = dcerpc_epm_map_binding(tmp_ctx, binding,
1126                                                 pipe_uuid, pipe_version);
1127                 if (!NT_STATUS_IS_OK(status)) {
1128                         DEBUG(0,("Failed to map DCERPC/TCP port for '%s' - %s\n",
1129                                  pipe_uuid, nt_errstr(status)));
1130                         talloc_free(p);
1131                         return status;
1132                 }
1133                 DEBUG(1,("Mapped to DCERPC/TCP port %s\n", binding->endpoint));
1134         }
1135
1136         port = atoi(binding->endpoint);
1137
1138         status = dcerpc_pipe_open_tcp(p->conn, binding->host, port);
1139         if (!NT_STATUS_IS_OK(status)) {
1140                 DEBUG(0,("Failed to connect to %s:%d - %s\n",
1141                          binding->host, port, nt_errstr(status)));
1142                 talloc_free(p);
1143                 return status;
1144         }
1145
1146         (*pp) = p;
1147         talloc_free(tmp_ctx);
1148
1149         return status;
1150 }
1151
1152
1153 /* open a rpc connection to a rpc pipe, using the specified
1154    binding structure to determine the endpoint and options */
1155 NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **pp,
1156                                struct dcerpc_binding *binding,
1157                                const char *pipe_uuid,
1158                                uint32_t pipe_version,
1159                                const char *workstation,
1160                                const char *domain,
1161                                const char *username,
1162                                const char *password)
1163 {
1164         NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1165
1166         switch (binding->transport) {
1167         case NCACN_NP:
1168                 status = dcerpc_pipe_connect_ncacn_np(pp, binding, pipe_uuid, pipe_version,
1169                                                       workstation, domain, username, password);
1170                 break;
1171         case NCACN_IP_TCP:
1172                 status = dcerpc_pipe_connect_ncacn_ip_tcp(pp, binding, pipe_uuid, pipe_version);
1173                 break;
1174         case NCACN_UNIX_STREAM:
1175                 status = dcerpc_pipe_connect_ncacn_unix_stream(pp, binding, pipe_uuid, pipe_version);
1176                 break;
1177         case NCALRPC:
1178                 status = dcerpc_pipe_connect_ncalrpc(pp, binding, pipe_uuid, pipe_version);
1179                 break;
1180         default:
1181                 return NT_STATUS_NOT_SUPPORTED;
1182         }
1183
1184         if (!NT_STATUS_IS_OK(status)) {
1185                 return status;
1186         }
1187
1188         status = dcerpc_pipe_auth(*pp, binding, pipe_uuid, pipe_version, workstation, domain, username, password);
1189         if (!NT_STATUS_IS_OK(status)) {
1190                 talloc_free(*pp);
1191                 *pp = NULL;
1192                 return status;
1193         }
1194
1195         return status;
1196 }
1197
1198
1199 /* open a rpc connection to a rpc pipe, using the specified string
1200    binding to determine the endpoint and options */
1201 NTSTATUS dcerpc_pipe_connect(struct dcerpc_pipe **pp,
1202                              const char *binding,
1203                              const char *pipe_uuid,
1204                              uint32_t pipe_version,
1205                              const char *workstation,
1206                              const char *domain,
1207                              const char *username,
1208                              const char *password)
1209 {
1210         struct dcerpc_binding *b;
1211         NTSTATUS status;
1212         TALLOC_CTX *tmp_ctx;
1213
1214         tmp_ctx = talloc_new(NULL);
1215         if (!tmp_ctx) {
1216                 return NT_STATUS_NO_MEMORY;
1217         }
1218
1219         status = dcerpc_parse_binding(tmp_ctx, binding, &b);
1220         if (!NT_STATUS_IS_OK(status)) {
1221                 DEBUG(0,("Failed to parse dcerpc binding '%s'\n", binding));
1222                 talloc_free(tmp_ctx);
1223                 return status;
1224         }
1225
1226         DEBUG(3,("Using binding %s\n", dcerpc_binding_string(tmp_ctx, b)));
1227
1228         status = dcerpc_pipe_connect_b(pp, b, pipe_uuid, pipe_version, workstation,
1229                                        domain, username, password);
1230
1231         talloc_free(tmp_ctx);
1232
1233         return status;
1234 }
1235
1236
1237 /*
1238   create a secondary dcerpc connection from a primary connection
1239
1240   if the primary is a SMB connection then the secondary connection
1241   will be on the same SMB connection, but use a new fnum
1242 */
1243 NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe **p2,
1244                                      struct dcerpc_binding *b)
1245
1246
1247 {
1248         struct smbcli_tree *tree;
1249         NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1250
1251         (*p2) = dcerpc_pipe_init(p);
1252         if (*p2 == NULL) {
1253                 return NT_STATUS_NO_MEMORY;
1254         }
1255
1256         switch (p->conn->transport.transport) {
1257         case NCACN_NP:
1258                 tree = dcerpc_smb_tree(p->conn);
1259                 if (!tree) {
1260                         return NT_STATUS_INVALID_PARAMETER;
1261                 }
1262                 status = dcerpc_pipe_open_smb((*p2)->conn, tree, b->endpoint);
1263                 break;
1264
1265         case NCACN_IP_TCP:
1266                 status = dcerpc_pipe_open_tcp((*p2)->conn, b->host, atoi(b->endpoint));
1267                 break;
1268
1269         case NCALRPC:
1270                 status = dcerpc_pipe_open_pipe((*p2)->conn, b->endpoint);
1271                 break;
1272
1273         default:
1274                 return NT_STATUS_NOT_SUPPORTED;
1275         }
1276
1277         if (!NT_STATUS_IS_OK(status)) {
1278                 talloc_free(*p2);
1279                 return status;
1280         }
1281
1282         (*p2)->conn->flags = p->conn->flags;
1283
1284         return NT_STATUS_OK;
1285 }
1286
1287 NTSTATUS dcerpc_generic_session_key(struct dcerpc_connection *c,
1288                                     DATA_BLOB *session_key)
1289 {
1290         /* this took quite a few CPU cycles to find ... */
1291         session_key->data = discard_const_p(unsigned char, "SystemLibraryDTC");
1292         session_key->length = 16;
1293         return NT_STATUS_OK;
1294 }
1295
1296 /*
1297   fetch the user session key - may be default (above) or the SMB session key
1298 */
1299 NTSTATUS dcerpc_fetch_session_key(struct dcerpc_pipe *p,
1300                                   DATA_BLOB *session_key)
1301 {
1302         return p->conn->security_state.session_key(p->conn, session_key);
1303 }
1304
1305
1306 /*
1307   log a rpc packet in a format suitable for ndrdump. This is especially useful
1308   for sealed packets, where ethereal cannot easily see the contents
1309
1310   this triggers on a debug level of >= 10
1311 */
1312 void dcerpc_log_packet(const struct dcerpc_interface_table *ndr,
1313                        uint32_t opnum, uint32_t flags, DATA_BLOB *pkt)
1314 {
1315         const int num_examples = 20;
1316         int i;
1317
1318         if (DEBUGLEVEL < 10) return;
1319
1320         for (i=0;i<num_examples;i++) {
1321                 char *name=NULL;
1322                 asprintf(&name, "%s/rpclog/%s-%u.%d.%s",
1323                          lp_lockdir(), ndr->name, opnum, i,
1324                          (flags&NDR_IN)?"in":"out");
1325                 if (name == NULL) {
1326                         return;
1327                 }
1328                 if (!file_exist(name)) {
1329                         if (file_save(name, pkt->data, pkt->length)) {
1330                                 DEBUG(10,("Logged rpc packet to %s\n", name));
1331                         }
1332                         free(name);
1333                         break;
1334                 }
1335                 free(name);
1336         }
1337 }
1338
1339
1340
1341 /*
1342   create a secondary context from a primary connection
1343
1344   this uses dcerpc_alter_context() to create a new dcerpc context_id
1345 */
1346 NTSTATUS dcerpc_secondary_context(struct dcerpc_pipe *p,
1347                                   struct dcerpc_pipe **pp2,
1348                                   const char *pipe_uuid,
1349                                   uint32_t pipe_version)
1350 {
1351         NTSTATUS status;
1352         struct dcerpc_pipe *p2;
1353
1354         p2 = talloc_zero(p, struct dcerpc_pipe);
1355         if (p2 == NULL) {
1356                 return NT_STATUS_NO_MEMORY;
1357         }
1358         p2->conn = talloc_reference(p2, p->conn);
1359
1360         p2->context_id = ++p->conn->next_context_id;
1361
1362         status = GUID_from_string(pipe_uuid, &p2->syntax.uuid);
1363         if (!NT_STATUS_IS_OK(status)) {
1364                 talloc_free(p2);
1365                 return status;
1366         }
1367         p2->syntax.if_version = pipe_version;
1368
1369         status = GUID_from_string(NDR_GUID, &p2->transfer_syntax.uuid);
1370         if (!NT_STATUS_IS_OK(status)) {
1371                 talloc_free(p2);
1372                 return status;
1373         }
1374         p2->transfer_syntax.if_version = NDR_GUID_VERSION;
1375
1376         status = dcerpc_alter_context(p2, p2, &p2->syntax, &p2->transfer_syntax);
1377         if (!NT_STATUS_IS_OK(status)) {
1378                 talloc_free(p2);
1379                 return status;
1380         }
1381
1382         *pp2 = p2;
1383
1384         return status;
1385 }