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)
 327 {
 328         char *options, *type;
 329         char *p;
 330         int i, j, comma_count;
 331
 332         p = strchr(s, '@');
 333
 334         if (p && PTR_DIFF(p, s) == 36) { /* 36 is the length of a UUID */
 335                 NTSTATUS status;
 336
 337                 status = GUID_from_string(s, &b->object);
 338
 339                 if (NT_STATUS_IS_ERR(status)) {
 340                         DEBUG(0, ("Failed parsing UUID\n"));
 341                         return status;
 342                 }
 343
 344                 s = p + 1;
 345         } else {
 346                 ZERO_STRUCT(b->object);
 347         }
 348
 349         b->object_version = 0;
 350
 351         p = strchr(s, ':');
 352         if (!p) {
 353                 return NT_STATUS_INVALID_PARAMETER;
 354         }
 355
 356         type = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
 357         if (!type) {
 358                 return NT_STATUS_NO_MEMORY;
 359         }
 360
 361         for (i=0;i<ARRAY_SIZE(transports);i++) {
 362                 if (strcasecmp(type, transports[i].name) == 0) {
 363                         b->transport = transports[i].transport;
 364                         break;
 365                 }
 366         }
 367         if (i==ARRAY_SIZE(transports)) {
 368                 DEBUG(0,("Unknown dcerpc transport '%s'\n", type));
 369                 return NT_STATUS_INVALID_PARAMETER;
 370         }
 371
 372         s = p+1;
 373
 374         p = strchr(s, '[');
 375         if (p) {
 376                 b->host = talloc_strndup(mem_ctx, s, PTR_DIFF(p, s));
 377                 options = talloc_strdup(mem_ctx, p+1);
 378                 if (options[strlen(options)-1] != ']') {
 379                         return NT_STATUS_INVALID_PARAMETER;
 380                 }
 381                 options[strlen(options)-1] = 0;
 382         } else {
 383                 b->host = talloc_strdup(mem_ctx, s);
 384                 options = NULL;
 385         }
 386
 387         if (!b->host) {
 388                 return NT_STATUS_NO_MEMORY;
 389         }
 390
 391         b->options = NULL;
 392         b->flags = 0;
 393         b->endpoint = NULL;
 394
 395         if (!options) {
 396                 return NT_STATUS_OK;
 397         }
 398
 399         comma_count = count_chars(options, ',');
 400
 401         b->options = talloc_array(mem_ctx, const char *, comma_count+2);
 402         if (!b->options) {
 403                 return NT_STATUS_NO_MEMORY;
 404         }
 405
 406         for (i=0; (p = strchr(options, ',')); i++) {
 407                 b->options[i] = talloc_strndup(mem_ctx, options, PTR_DIFF(p, options));
 408                 if (!b->options[i]) {
 409                         return NT_STATUS_NO_MEMORY;
 410                 }
 411                 options = p+1;
 412         }
 413         b->options[i] = options;
 414         b->options[i+1] = NULL;
 415
 416         /* some options are pre-parsed for convenience */
 417         for (i=0;b->options[i];i++) {
 418                 for (j=0;j<ARRAY_SIZE(ncacn_options);j++) {
 419                         if (strcasecmp(ncacn_options[j].name, b->options[i]) == 0) {
 420                                 int k;
 421                                 b->flags |= ncacn_options[j].flag;
 422                                 for (k=i;b->options[k];k++) {
 423                                         b->options[k] = b->options[k+1];
 424                                 }
 425                                 i--;
 426                                 break;
 427                         }
 428                 }
 429         }
 430
 431         if (b->options[0]) {
 432                 /* Endpoint is first option */
 433                 b->endpoint = b->options[0];
 434                 if (strlen(b->endpoint) == 0) b->endpoint = NULL;
 435
 436                 for (i=0;b->options[i];i++) {
 437                         b->options[i] = b->options[i+1];
 438                 }
 439         }
 440
 441         if (b->options[0] == NULL)
 442                 b->options = NULL;
 443
 444         return NT_STATUS_OK;
 445 }
 446
 447 NTSTATUS dcerpc_floor_get_lhs_data(struct epm_floor *floor, struct GUID *uuid, uint16_t *if_version)
 448 {
 449         TALLOC_CTX *mem_ctx = talloc_init("floor_get_lhs_data");
 450         struct ndr_pull *ndr = ndr_pull_init_blob(&floor->lhs.lhs_data, mem_ctx);
 451         NTSTATUS status;
 452
 453         ndr->flags |= LIBNDR_FLAG_NOALIGN;
 454
 455         status = ndr_pull_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, uuid);
 456         if (NT_STATUS_IS_ERR(status)) {
 457                 talloc_free(mem_ctx);
 458                 return status;
 459         }
 460
 461         status = ndr_pull_uint16(ndr, if_version);
 462
 463         talloc_free(mem_ctx);
 464
 465         return status;
 466 }
 467
 468 DATA_BLOB dcerpc_floor_pack_lhs_data(TALLOC_CTX *mem_ctx, struct GUID *uuid, uint32 if_version)
 469 {
 470         struct ndr_push *ndr = ndr_push_init_ctx(mem_ctx);
 471
 472         ndr->flags |= LIBNDR_FLAG_NOALIGN;
 473
 474         ndr_push_GUID(ndr, NDR_SCALARS | NDR_BUFFERS, uuid);
 475         ndr_push_uint16(ndr, if_version);
 476
 477         return ndr_push_blob(ndr);
 478 }
 479
 480 const char *dcerpc_floor_get_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor)
 481 {
 482         switch (floor->lhs.protocol) {
 483         case EPM_PROTOCOL_TCP:
 484                 if (floor->rhs.tcp.port == 0) return NULL;
 485                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.tcp.port);
 486
 487         case EPM_PROTOCOL_UDP:
 488                 if (floor->rhs.udp.port == 0) return NULL;
 489                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.udp.port);
 490
 491         case EPM_PROTOCOL_HTTP:
 492                 if (floor->rhs.http.port == 0) return NULL;
 493                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.http.port);
 494
 495         case EPM_PROTOCOL_IP:
 496                 return talloc_strdup(mem_ctx, floor->rhs.ip.ipaddr);
 497
 498         case EPM_PROTOCOL_NCACN:
 499                 return NULL;
 500
 501         case EPM_PROTOCOL_NCADG:
 502                 return NULL;
 503
 504         case EPM_PROTOCOL_SMB:
 505                 if (strlen(floor->rhs.smb.unc) == 0) return NULL;
 506                 return talloc_strdup(mem_ctx, floor->rhs.smb.unc);
 507
 508         case EPM_PROTOCOL_PIPE:
 509                 if (strlen(floor->rhs.pipe.path) == 0) return NULL;
 510                 return talloc_strdup(mem_ctx, floor->rhs.pipe.path);
 511
 512         case EPM_PROTOCOL_NETBIOS:
 513                 if (strlen(floor->rhs.netbios.name) == 0) return NULL;
 514                 return talloc_strdup(mem_ctx, floor->rhs.netbios.name);
 515
 516         case EPM_PROTOCOL_NCALRPC:
 517                 return NULL;
 518
 519         case EPM_PROTOCOL_VINES_SPP:
 520                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.vines_spp.port);
 521
 522         case EPM_PROTOCOL_VINES_IPC:
 523                 return talloc_asprintf(mem_ctx, "%d", floor->rhs.vines_ipc.port);
 524
 525         case EPM_PROTOCOL_STREETTALK:
 526                 return talloc_strdup(mem_ctx, floor->rhs.streettalk.streettalk);
 527
 528         case EPM_PROTOCOL_UNIX_DS:
 529                 if (strlen(floor->rhs.unix_ds.path) == 0) return NULL;
 530                 return talloc_strdup(mem_ctx, floor->rhs.unix_ds.path);
 531
 532         case EPM_PROTOCOL_NULL:
 533                 return NULL;
 534
 535         default:
 536                 DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
 537                 break;
 538         }
 539
 540         return NULL;
 541 }
 542
 543 static NTSTATUS dcerpc_floor_set_rhs_data(TALLOC_CTX *mem_ctx, struct epm_floor *floor,  const char *data)
 544 {
 545         switch (floor->lhs.protocol) {
 546         case EPM_PROTOCOL_TCP:
 547                 floor->rhs.tcp.port = atoi(data);
 548                 return NT_STATUS_OK;
 549
 550         case EPM_PROTOCOL_UDP:
 551                 floor->rhs.udp.port = atoi(data);
 552                 return NT_STATUS_OK;
 553
 554         case EPM_PROTOCOL_HTTP:
 555                 floor->rhs.http.port = atoi(data);
 556                 return NT_STATUS_OK;
 557
 558         case EPM_PROTOCOL_IP:
 559                 floor->rhs.ip.ipaddr = talloc_strdup(mem_ctx, data);
 560                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.ip.ipaddr);
 561                 return NT_STATUS_OK;
 562
 563         case EPM_PROTOCOL_NCACN:
 564                 floor->rhs.ncacn.minor_version = 0;
 565                 return NT_STATUS_OK;
 566
 567         case EPM_PROTOCOL_NCADG:
 568                 floor->rhs.ncadg.minor_version = 0;
 569                 return NT_STATUS_OK;
 570
 571         case EPM_PROTOCOL_SMB:
 572                 floor->rhs.smb.unc = talloc_strdup(mem_ctx, data);
 573                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.smb.unc);
 574                 return NT_STATUS_OK;
 575
 576         case EPM_PROTOCOL_PIPE:
 577                 floor->rhs.pipe.path = talloc_strdup(mem_ctx, data);
 578                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.pipe.path);
 579                 return NT_STATUS_OK;
 580
 581         case EPM_PROTOCOL_NETBIOS:
 582                 floor->rhs.netbios.name = talloc_strdup(mem_ctx, data);
 583                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.netbios.name);
 584                 return NT_STATUS_OK;
 585
 586         case EPM_PROTOCOL_NCALRPC:
 587                 return NT_STATUS_OK;
 588
 589         case EPM_PROTOCOL_VINES_SPP:
 590                 floor->rhs.vines_spp.port = atoi(data);
 591                 return NT_STATUS_OK;
 592
 593         case EPM_PROTOCOL_VINES_IPC:
 594                 floor->rhs.vines_ipc.port = atoi(data);
 595                 return NT_STATUS_OK;
 596
 597         case EPM_PROTOCOL_STREETTALK:
 598                 floor->rhs.streettalk.streettalk = talloc_strdup(mem_ctx, data);
 599                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.streettalk.streettalk);
 600                 return NT_STATUS_OK;
 601
 602         case EPM_PROTOCOL_UNIX_DS:
 603                 floor->rhs.unix_ds.path = talloc_strdup(mem_ctx, data);
 604                 NT_STATUS_HAVE_NO_MEMORY(floor->rhs.unix_ds.path);
 605                 return NT_STATUS_OK;
 606
 607         case EPM_PROTOCOL_NULL:
 608                 return NT_STATUS_OK;
 609
 610         default:
 611                 DEBUG(0,("Unsupported lhs protocol %d\n", floor->lhs.protocol));
 612                 break;
 613         }
 614
 615         return NT_STATUS_NOT_SUPPORTED;
 616 }
 617
 618 enum dcerpc_transport_t dcerpc_transport_by_endpoint_protocol(int prot)
 619 {
 620         int i;
 621
 622         /* Find a transport that has 'prot' as 4th protocol */
 623         for (i=0;i<ARRAY_SIZE(transports);i++) {
 624                 if (transports[i].num_protocols >= 2 &&
 625                         transports[i].protseq[1] == prot) {
 626                         return transports[i].transport;
 627                 }
 628         }
 629
 630         /* Unknown transport */
 631         return -1;
 632 }
 633
 634 enum dcerpc_transport_t dcerpc_transport_by_tower(struct epm_tower *tower)
 635 {
 636         int i;
 637
 638         /* Find a transport that matches this tower */
 639         for (i=0;i<ARRAY_SIZE(transports);i++) {
 640                 int j;
 641                 if (transports[i].num_protocols != tower->num_floors - 2) {
 642                         continue;
 643                 }
 644
 645                 for (j = 0; j < transports[i].num_protocols; j++) {
 646                         if (transports[i].protseq[j] != tower->floors[j+2].lhs.protocol) {
 647                                 break;
 648                         }
 649                 }
 650
 651                 if (j == transports[i].num_protocols) {
 652                         return transports[i].transport;
 653                 }
 654         }
 655
 656         /* Unknown transport */
 657         return -1;
 658 }
 659
 660 NTSTATUS dcerpc_binding_from_tower(TALLOC_CTX *mem_ctx, struct epm_tower *tower, struct dcerpc_binding *binding)
 661 {
 662         NTSTATUS status;
 663
 664         ZERO_STRUCT(binding->object);
 665         binding->options = NULL;
 666         binding->host = NULL;
 667         binding->flags = 0;
 668
 669         binding->transport = dcerpc_transport_by_tower(tower);
 670
 671         if (binding->transport == -1) {
 672                 return NT_STATUS_NOT_SUPPORTED;
 673         }
 674
 675         if (tower->num_floors < 1) {
 676                 return NT_STATUS_OK;
 677         }
 678
 679         /* Set object uuid */
 680         status = dcerpc_floor_get_lhs_data(&tower->floors[0], &binding->object, &binding->object_version);
 681
 682         if (!NT_STATUS_IS_OK(status)) {
 683                 DEBUG(1, ("Error pulling object uuid and version: %s", nt_errstr(status)));
 684                 return status;
 685         }
 686
 687         /* Ignore floor 1, it contains the NDR version info */
 688
 689         binding->options = NULL;
 690
 691         /* Set endpoint */
 692         if (tower->num_floors >= 4) {
 693                 binding->endpoint = dcerpc_floor_get_rhs_data(mem_ctx, &tower->floors[3]);
 694         } else {
 695                 binding->endpoint = NULL;
 696         }
 697
 698         /* Set network address */
 699         if (tower->num_floors >= 5) {
 700                 binding->host = dcerpc_floor_get_rhs_data(mem_ctx, &tower->floors[4]);
 701         }
 702         return NT_STATUS_OK;
 703 }
 704
 705 NTSTATUS dcerpc_binding_build_tower(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding, struct epm_tower *tower)
 706 {
 707         const enum epm_protocol *protseq = NULL;
 708         int num_protocols = -1, i;
 709         struct GUID ndr_guid;
 710         NTSTATUS status;
 711
 712         /* Find transport */
 713         for (i=0;i<ARRAY_SIZE(transports);i++) {
 714                 if (transports[i].transport == binding->transport) {
 715                         protseq = transports[i].protseq;
 716                         num_protocols = transports[i].num_protocols;
 717                         break;
 718                 }
 719         }
 720
 721         if (num_protocols == -1) {
 722                 DEBUG(0, ("Unable to find transport with id '%d'\n", binding->transport));
 723                 return NT_STATUS_UNSUCCESSFUL;
 724         }
 725
 726         tower->num_floors = 2 + num_protocols;
 727         tower->floors = talloc_array(mem_ctx, struct epm_floor, tower->num_floors);
 728
 729         /* Floor 0 */
 730         tower->floors[0].lhs.protocol = EPM_PROTOCOL_UUID;
 731
 732         tower->floors[0].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &binding->object, binding->object_version);
 733
 734         tower->floors[0].rhs.uuid.unknown = data_blob_talloc(mem_ctx, NULL, 0);
 735
 736
 737         /* Floor 1 */
 738         tower->floors[1].lhs.protocol = EPM_PROTOCOL_UUID;
 739
 740         status = GUID_from_string(NDR_GUID, &ndr_guid);
 741         if (NT_STATUS_IS_ERR(status)) {
 742                 return status;
 743         }
 744
 745         tower->floors[1].lhs.lhs_data = dcerpc_floor_pack_lhs_data(mem_ctx, &ndr_guid, NDR_GUID_VERSION);
 746
 747         tower->floors[1].rhs.uuid.unknown = data_blob_talloc(mem_ctx, NULL, 0);
 748
 749         /* Floor 2 to num_protocols */
 750         for (i = 0; i < num_protocols; i++) {
 751                 tower->floors[2 + i].lhs.protocol = protseq[i];
 752                 tower->floors[2 + i].lhs.lhs_data = data_blob_talloc(mem_ctx, NULL, 0);
 753                 ZERO_STRUCT(tower->floors[2 + i].rhs);
 754                 dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[2 + i], "");
 755         }
 756
 757         /* The 4th floor contains the endpoint */
 758         if (num_protocols >= 2 && binding->endpoint) {
 759                 status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[3], binding->endpoint);
 760                 if (NT_STATUS_IS_ERR(status)) {
 761                         return status;
 762                 }
 763         }
 764
 765         /* The 5th contains the network address */
 766         if (num_protocols >= 3 && binding->host) {
 767                 status = dcerpc_floor_set_rhs_data(mem_ctx, &tower->floors[4], binding->host);
 768                 if (NT_STATUS_IS_ERR(status)) {
 769                         return status;
 770                 }
 771         }
 772
 773         return NT_STATUS_OK;
 774 }
 775
 776 NTSTATUS dcerpc_epm_map_binding(TALLOC_CTX *mem_ctx, struct dcerpc_binding *binding,
 777                                  const char *uuid, uint_t version)
 778 {
 779         struct dcerpc_pipe *p;
 780         NTSTATUS status;
 781         struct epm_Map r;
 782         struct policy_handle handle;
 783         struct GUID guid;
 784         struct epm_twr_t twr, *twr_r;
 785         struct dcerpc_binding epmapper_binding;
 786         const struct dcerpc_interface_table *table = idl_iface_by_uuid(uuid);
 787         int i;
 788
 789         /* First, check if there is a default endpoint specified in the IDL */
 790
 791         if (table) {
 792                 struct dcerpc_binding default_binding;
 793
 794                 /* Find one of the default pipes for this interface */
 795                 for (i = 0; i < table->endpoints->count; i++) {
 796                         status = dcerpc_parse_binding(mem_ctx, table->endpoints->names[i], &default_binding);
 797
 798                         if (NT_STATUS_IS_OK(status) && default_binding.transport == binding->transport && default_binding.endpoint) {
 799                                 binding->endpoint = talloc_strdup(mem_ctx, default_binding.endpoint);
 800                                 return NT_STATUS_OK;
 801                         }
 802                 }
 803         }
 804
 805
 806         ZERO_STRUCT(epmapper_binding);
 807         epmapper_binding.transport = binding->transport;
 808         epmapper_binding.host = binding->host;
 809         epmapper_binding.options = NULL;
 810         epmapper_binding.flags = 0;
 811         epmapper_binding.endpoint = NULL;
 812
 813         status = dcerpc_pipe_connect_b(&p,
 814                                         &epmapper_binding,
 815                                    DCERPC_EPMAPPER_UUID,
 816                                    DCERPC_EPMAPPER_VERSION,
 817                                    NULL, NULL, NULL);
 818
 819         if (!NT_STATUS_IS_OK(status)) {
 820                 return status;
 821         }
 822
 823         ZERO_STRUCT(handle);
 824         ZERO_STRUCT(guid);
 825
 826         status = GUID_from_string(uuid, &binding->object);
 827         if (NT_STATUS_IS_ERR(status)) {
 828                 return status;
 829         }
 830
 831         binding->object_version = version;
 832
 833         status = dcerpc_binding_build_tower(p, binding, &twr.tower);
 834         if (NT_STATUS_IS_ERR(status)) {
 835                 return status;
 836         }
 837
 838         /* with some nice pretty paper around it of course */
 839         r.in.object = &guid;
 840         r.in.map_tower = &twr;
 841         r.in.entry_handle = &handle;
 842         r.in.max_towers = 1;
 843         r.out.entry_handle = &handle;
 844
 845         status = dcerpc_epm_Map(p, p, &r);
 846         if (!NT_STATUS_IS_OK(status)) {
 847                 dcerpc_pipe_close(p);
 848                 return status;
 849         }
 850         if (r.out.result != 0 || r.out.num_towers != 1) {
 851                 dcerpc_pipe_close(p);
 852                 return NT_STATUS_PORT_UNREACHABLE;
 853         }
 854
 855         twr_r = r.out.towers[0].twr;
 856         if (!twr_r) {
 857                 dcerpc_pipe_close(p);
 858                 return NT_STATUS_PORT_UNREACHABLE;
 859         }
 860
 861         if (twr_r->tower.num_floors != twr.tower.num_floors ||
 862             twr_r->tower.floors[3].lhs.protocol != twr.tower.floors[3].lhs.protocol) {
 863                 dcerpc_pipe_close(p);
 864                 return NT_STATUS_PORT_UNREACHABLE;
 865         }
 866
 867         binding->endpoint = dcerpc_floor_get_rhs_data(mem_ctx, &twr_r->tower.floors[3]);
 868
 869         dcerpc_pipe_close(p);
 870
 871         return NT_STATUS_OK;
 872 }
 873
 874
 875 /*
 876    perform an authenticated bind if needed
 877 */
 878 static NTSTATUS dcerpc_pipe_auth(struct dcerpc_pipe *p,
 879                                  struct dcerpc_binding *binding,
 880                                  const char *pipe_uuid,
 881                                  uint32_t pipe_version,
 882                                  const char *domain,
 883                                  const char *username,
 884                                  const char *password)
 885 {
 886         NTSTATUS status;
 887         p->conn->flags = binding->flags;
 888
 889         /* remember the binding string for possible secondary connections */
 890         p->conn->binding_string = dcerpc_binding_string(p, binding);
 891
 892         if (username && username[0] && (binding->flags & DCERPC_SCHANNEL_ANY)) {
 893                 status = dcerpc_bind_auth_schannel(p, pipe_uuid, pipe_version,
 894                                                    domain, username, password);
 895         } else if (username && username[0]) {
 896                 uint8_t auth_type;
 897                 if (binding->flags & DCERPC_AUTH_SPNEGO) {
 898                         auth_type = DCERPC_AUTH_TYPE_SPNEGO;
 899                 } else if (binding->flags & DCERPC_AUTH_KRB5) {
 900                         auth_type = DCERPC_AUTH_TYPE_KRB5;
 901                 } else {
 902                         auth_type = DCERPC_AUTH_TYPE_NTLMSSP;
 903                 }
 904
 905                 status = dcerpc_bind_auth_password(p, pipe_uuid, pipe_version,
 906                                                    domain, username, password,
 907                                                    auth_type);
 908         } else {
 909                 status = dcerpc_bind_auth_none(p, pipe_uuid, pipe_version);
 910         }
 911
 912         if (!NT_STATUS_IS_OK(status)) {
 913                 DEBUG(0,("Failed to bind to uuid %s - %s\n", pipe_uuid, nt_errstr(status)));
 914         }
 915         return status;
 916 }
 917
 918
 919 /* open a rpc connection to a rpc pipe on SMB using the binding
 920    structure to determine the endpoint and options */
 921 static NTSTATUS dcerpc_pipe_connect_ncacn_np(struct dcerpc_pipe **pp,
 922                                              struct dcerpc_binding *binding,
 923                                              const char *pipe_uuid,
 924                                              uint32_t pipe_version,
 925                                              const char *domain,
 926                                              const char *username,
 927                                              const char *password)
 928 {
 929         struct dcerpc_pipe *p;
 930         NTSTATUS status;
 931         struct smbcli_state *cli;
 932         const char *pipe_name = NULL;
 933         TALLOC_CTX *tmp_ctx;
 934
 935         *pp = NULL;
 936
 937         p = dcerpc_pipe_init(NULL);
 938         if (p == NULL) {
 939                 return NT_STATUS_NO_MEMORY;
 940         }
 941         tmp_ctx = talloc_new(p);
 942
 943         /* Look up identifier using the epmapper */
 944         if (!binding->endpoint) {
 945                 status = dcerpc_epm_map_binding(tmp_ctx, binding, pipe_uuid, pipe_version);
 946                 if (!NT_STATUS_IS_OK(status)) {
 947                         DEBUG(0,("Failed to map DCERPC/TCP NCACN_NP pipe for '%s' - %s\n",
 948                                  pipe_uuid, nt_errstr(status)));
 949                         talloc_free(p);
 950                         return status;
 951                 }
 952                 DEBUG(1,("Mapped to DCERPC/NP pipe %s\n", binding->endpoint));
 953         }
 954
 955         pipe_name = binding->endpoint;
 956
 957         if (!strncasecmp(pipe_name, "/pipe/", 6) ||
 958             !strncasecmp(pipe_name, "\\pipe\\", 6)) {
 959                 pipe_name += 6;
 960         }
 961
 962         if (pipe_name[0] != '\\') {
 963                 pipe_name = talloc_asprintf(tmp_ctx, "\\%s", pipe_name);
 964         }
 965
 966         if (!username || !username[0] ||
 967             (binding->flags & DCERPC_SCHANNEL_ANY)) {
 968                 status = smbcli_full_connection(p->conn, &cli, lp_netbios_name(),
 969                                                 binding->host,
 970                                                 "ipc$", NULL,
 971                                                 "", "", NULL);
 972         } else {
 973                 status = smbcli_full_connection(p->conn, &cli, lp_netbios_name(),
 974                                                 binding->host,
 975                                                 "ipc$", NULL,
 976                                                 username, domain,
 977                                                 password);
 978         }
 979         if (!NT_STATUS_IS_OK(status)) {
 980                 DEBUG(0,("Failed to connect to %s - %s\n", binding->host, nt_errstr(status)));
 981                 talloc_free(p);
 982                 return status;
 983         }
 984
 985         status = dcerpc_pipe_open_smb(p->conn, cli->tree, pipe_name);
 986         if (!NT_STATUS_IS_OK(status)) {
 987                 DEBUG(0,("Failed to open pipe %s - %s\n", pipe_name, nt_errstr(status)));
 988                 talloc_free(p);
 989                 return status;
 990         }
 991
 992         if (!(binding->flags & DCERPC_AUTH_OPTIONS)) {
 993                 username = NULL;
 994         }
 995
 996         status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
 997         if (!NT_STATUS_IS_OK(status)) {
 998                 talloc_free(p);
 999                 return status;
1000         }
1001
1002         (*pp) = p;
1003         talloc_free(tmp_ctx);
1004
1005         return NT_STATUS_OK;
1006 }
1007
1008 /* open a rpc connection to a rpc pipe on SMP using the binding
1009    structure to determine the endpoint and options */
1010 static NTSTATUS dcerpc_pipe_connect_ncalrpc(struct dcerpc_pipe **pp,
1011                                             struct dcerpc_binding *binding,
1012                                             const char *pipe_uuid,
1013                                             uint32_t pipe_version,
1014                                             const char *domain,
1015                                             const char *username,
1016                                             const char *password)
1017 {
1018         NTSTATUS status;
1019         struct dcerpc_pipe *p;
1020         TALLOC_CTX *tmp_ctx;
1021
1022         (*pp) = NULL;
1023
1024         p = dcerpc_pipe_init(NULL);
1025         if (p == NULL) {
1026                 return NT_STATUS_NO_MEMORY;
1027         }
1028         tmp_ctx = talloc_new(p);
1029
1030         /* Look up identifier using the epmapper */
1031         if (!binding->endpoint) {
1032                 status = dcerpc_epm_map_binding(tmp_ctx, binding, pipe_uuid, pipe_version);
1033                 if (!NT_STATUS_IS_OK(status)) {
1034                         DEBUG(0,("Failed to map DCERPC/TCP NCALRPC identifier for '%s' - %s\n",
1035                                  pipe_uuid, nt_errstr(status)));
1036                         talloc_free(p);
1037                         return status;
1038                 }
1039                 DEBUG(1,("Mapped to DCERPC/LRPC identifier %s\n", binding->endpoint));
1040         }
1041
1042         status = dcerpc_pipe_open_pipe(p->conn, binding->endpoint);
1043         if (!NT_STATUS_IS_OK(status)) {
1044                 DEBUG(0,("Failed to open ncalrpc pipe '%s' - %s\n",
1045                          binding->endpoint, nt_errstr(status)));
1046                 talloc_free(p);
1047                 return status;
1048         }
1049
1050         status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
1051         if (!NT_STATUS_IS_OK(status)) {
1052                 talloc_free(p);
1053                 return status;
1054         }
1055
1056         (*pp) = p;
1057         talloc_free(tmp_ctx);
1058
1059         return status;
1060 }
1061
1062
1063
1064 /* open a rpc connection to a rpc pipe on SMP using the binding
1065    structure to determine the endpoint and options */
1066 static NTSTATUS dcerpc_pipe_connect_ncacn_unix_stream(struct dcerpc_pipe **pp,
1067                                                       struct dcerpc_binding *binding,
1068                                                       const char *pipe_uuid,
1069                                                       uint32_t pipe_version,
1070                                                       const char *domain,
1071                                                       const char *username,
1072                                                       const char *password)
1073 {
1074         NTSTATUS status;
1075         struct dcerpc_pipe *p;
1076
1077         (*pp) = NULL;
1078
1079         if (!binding->endpoint) {
1080                 DEBUG(0, ("Path to unix socket not specified\n"));
1081                 return NT_STATUS_INVALID_PARAMETER;
1082         }
1083
1084         p = dcerpc_pipe_init(NULL);
1085         if (p == NULL) {
1086                 return NT_STATUS_NO_MEMORY;
1087         }
1088
1089         status = dcerpc_pipe_open_unix_stream(p->conn, binding->endpoint);
1090         if (!NT_STATUS_IS_OK(status)) {
1091                 DEBUG(0,("Failed to open unix socket %s - %s\n",
1092                          binding->endpoint, nt_errstr(status)));
1093                 talloc_free(p);
1094                 return status;
1095         }
1096
1097         status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
1098         if (!NT_STATUS_IS_OK(status)) {
1099                 talloc_free(p);
1100                 return status;
1101         }
1102
1103         (*pp) = p;
1104
1105         return status;
1106 }
1107
1108 /* open a rpc connection to a rpc pipe on SMP using the binding
1109    structure to determine the endpoint and options */
1110 static NTSTATUS dcerpc_pipe_connect_ncacn_ip_tcp(struct dcerpc_pipe **pp,
1111                                                  struct dcerpc_binding *binding,
1112                                                  const char *pipe_uuid,
1113                                                  uint32_t pipe_version,
1114                                                  const char *domain,
1115                                                  const char *username,
1116                                                  const char *password)
1117 {
1118         NTSTATUS status;
1119         uint32_t port = 0;
1120         struct dcerpc_pipe *p;
1121         TALLOC_CTX *tmp_ctx;
1122
1123         (*pp) = NULL;
1124
1125         p = dcerpc_pipe_init(NULL);
1126         if (p == NULL) {
1127                 return NT_STATUS_NO_MEMORY;
1128         }
1129         tmp_ctx = talloc_new(p);
1130
1131         if (!binding->endpoint) {
1132                 status = dcerpc_epm_map_binding(tmp_ctx, binding,
1133                                                 pipe_uuid, pipe_version);
1134                 if (!NT_STATUS_IS_OK(status)) {
1135                         DEBUG(0,("Failed to map DCERPC/TCP port for '%s' - %s\n",
1136                                  pipe_uuid, nt_errstr(status)));
1137                         talloc_free(p);
1138                         return status;
1139                 }
1140                 DEBUG(1,("Mapped to DCERPC/TCP port %s\n", binding->endpoint));
1141         }
1142
1143         port = atoi(binding->endpoint);
1144
1145         status = dcerpc_pipe_open_tcp(p->conn, binding->host, port);
1146         if (!NT_STATUS_IS_OK(status)) {
1147                 DEBUG(0,("Failed to connect to %s:%d - %s\n",
1148                          binding->host, port, nt_errstr(status)));
1149                 talloc_free(p);
1150                 return status;
1151         }
1152
1153         status = dcerpc_pipe_auth(p, binding, pipe_uuid, pipe_version, domain, username, password);
1154         if (!NT_STATUS_IS_OK(status)) {
1155                 talloc_free(p);
1156                 return status;
1157         }
1158
1159         (*pp) = p;
1160         talloc_free(tmp_ctx);
1161
1162         return status;
1163 }
1164
1165
1166 /* open a rpc connection to a rpc pipe, using the specified
1167    binding structure to determine the endpoint and options */
1168 NTSTATUS dcerpc_pipe_connect_b(struct dcerpc_pipe **pp,
1169                                struct dcerpc_binding *binding,
1170                                const char *pipe_uuid,
1171                                uint32_t pipe_version,
1172                                const char *domain,
1173                                const char *username,
1174                                const char *password)
1175 {
1176         NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1177
1178         switch (binding->transport) {
1179         case NCACN_NP:
1180                 status = dcerpc_pipe_connect_ncacn_np(pp, binding, pipe_uuid, pipe_version,
1181                                                       domain, username, password);
1182                 break;
1183         case NCACN_IP_TCP:
1184                 status = dcerpc_pipe_connect_ncacn_ip_tcp(pp, binding, pipe_uuid, pipe_version,
1185                                                           domain, username, password);
1186                 break;
1187         case NCACN_UNIX_STREAM:
1188                 status = dcerpc_pipe_connect_ncacn_unix_stream(pp, binding, pipe_uuid, pipe_version,
1189                                                                domain, username, password);
1190                 break;
1191         case NCALRPC:
1192                 status = dcerpc_pipe_connect_ncalrpc(pp, binding, pipe_uuid, pipe_version,
1193                                                      domain, username, password);
1194                 break;
1195         default:
1196                 return NT_STATUS_NOT_SUPPORTED;
1197         }
1198
1199         return status;
1200 }
1201
1202
1203 /* open a rpc connection to a rpc pipe, using the specified string
1204    binding to determine the endpoint and options */
1205 NTSTATUS dcerpc_pipe_connect(struct dcerpc_pipe **pp,
1206                              const char *binding,
1207                              const char *pipe_uuid,
1208                              uint32_t pipe_version,
1209                              const char *domain,
1210                              const char *username,
1211                              const char *password)
1212 {
1213         struct dcerpc_binding b;
1214         NTSTATUS status;
1215         TALLOC_CTX *tmp_ctx;
1216
1217         tmp_ctx = talloc_new(NULL);
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, domain, username, password);
1229
1230         talloc_free(tmp_ctx);
1231
1232         return status;
1233 }
1234
1235
1236 /*
1237   create a secondary dcerpc connection from a primary connection
1238
1239   if the primary is a SMB connection then the secondary connection
1240   will be on the same SMB connection, but use a new fnum
1241 */
1242 NTSTATUS dcerpc_secondary_connection(struct dcerpc_pipe *p, struct dcerpc_pipe **p2,
1243                                      const char *pipe_name,
1244                                      const char *pipe_uuid,
1245                                      uint32_t pipe_version)
1246 {
1247         struct smbcli_tree *tree;
1248         NTSTATUS status = NT_STATUS_INVALID_PARAMETER;
1249         struct dcerpc_binding b;
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, pipe_name);
1263                 break;
1264
1265         case NCACN_IP_TCP:
1266                 status = dcerpc_parse_binding(p, p->conn->binding_string, &b);
1267                 if (!NT_STATUS_IS_OK(status)) {
1268                         return status;
1269                 }
1270                 status = dcerpc_pipe_open_tcp((*p2)->conn, b.host, atoi(b.endpoint));
1271                 break;
1272
1273         case NCALRPC:
1274                 status = dcerpc_parse_binding(p, p->conn->binding_string, &b);
1275                 if (!NT_STATUS_IS_OK(status)) {
1276                         return status;
1277                 }
1278                 status = dcerpc_pipe_open_pipe((*p2)->conn, b.endpoint);
1279                 break;
1280
1281         default:
1282                 return NT_STATUS_NOT_SUPPORTED;
1283         }
1284
1285         if (!NT_STATUS_IS_OK(status)) {
1286                 talloc_free(*p2);
1287                 return status;
1288         }
1289
1290         (*p2)->conn->flags = p->conn->flags;
1291
1292         status = dcerpc_bind_auth_none(*p2, pipe_uuid, pipe_version);
1293         if (!NT_STATUS_IS_OK(status)) {
1294                 talloc_free(*p2);
1295                 return status;
1296         }
1297
1298         return NT_STATUS_OK;
1299 }
1300
1301 NTSTATUS dcerpc_generic_session_key(struct dcerpc_connection *c,
1302                                     DATA_BLOB *session_key)
1303 {
1304         /* this took quite a few CPU cycles to find ... */
1305         session_key->data = discard_const_p(unsigned char, "SystemLibraryDTC");
1306         session_key->length = 16;
1307         return NT_STATUS_OK;
1308 }
1309
1310 /*
1311   fetch the user session key - may be default (above) or the SMB session key
1312 */
1313 NTSTATUS dcerpc_fetch_session_key(struct dcerpc_pipe *p,
1314                                   DATA_BLOB *session_key)
1315 {
1316         return p->conn->security_state.session_key(p->conn, session_key);
1317 }
1318
1319
1320 /*
1321   log a rpc packet in a format suitable for ndrdump. This is especially useful
1322   for sealed packets, where ethereal cannot easily see the contents
1323
1324   this triggers on a debug level of >= 10
1325 */
1326 void dcerpc_log_packet(const struct dcerpc_interface_table *ndr,
1327                        uint32_t opnum, uint32_t flags, DATA_BLOB *pkt)
1328 {
1329         const int num_examples = 20;
1330         int i;
1331
1332         if (DEBUGLEVEL < 10) return;
1333
1334         for (i=0;i<num_examples;i++) {
1335                 char *name=NULL;
1336                 asprintf(&name, "%s/rpclog/%s-%u.%d.%s",
1337                          lp_lockdir(), ndr->name, opnum, i,
1338                          (flags&NDR_IN)?"in":"out");
1339                 if (name == NULL) {
1340                         return;
1341                 }
1342                 if (!file_exist(name, NULL)) {
1343                         if (file_save(name, pkt->data, pkt->length)) {
1344                                 DEBUG(10,("Logged rpc packet to %s\n", name));
1345                         }
1346                         free(name);
1347                         break;
1348                 }
1349                 free(name);
1350         }
1351 }
1352
1353
1354
1355 /*
1356   create a secondary context from a primary connection
1357
1358   this uses dcerpc_alter_context() to create a new dcerpc context_id
1359 */
1360 NTSTATUS dcerpc_secondary_context(struct dcerpc_pipe *p,
1361                                   struct dcerpc_pipe **pp2,
1362                                   const char *pipe_uuid,
1363                                   uint32_t pipe_version)
1364 {
1365         NTSTATUS status;
1366         struct dcerpc_pipe *p2;
1367
1368         p2 = talloc_zero(p, struct dcerpc_pipe);
1369         if (p2 == NULL) {
1370                 return NT_STATUS_NO_MEMORY;
1371         }
1372         p2->conn = talloc_reference(p2, p->conn);
1373
1374         p2->context_id = ++p->conn->next_context_id;
1375
1376         status = GUID_from_string(pipe_uuid, &p2->syntax.uuid);
1377         if (!NT_STATUS_IS_OK(status)) {
1378                 talloc_free(p2);
1379                 return status;
1380         }
1381         p2->syntax.if_version = pipe_version;
1382
1383         status = GUID_from_string(NDR_GUID, &p2->transfer_syntax.uuid);
1384         if (!NT_STATUS_IS_OK(status)) {
1385                 talloc_free(p2);
1386                 return status;
1387         }
1388         p2->transfer_syntax.if_version = NDR_GUID_VERSION;
1389
1390         status = dcerpc_alter_context(p2, p2, &p2->syntax, &p2->transfer_syntax);
1391         if (!NT_STATUS_IS_OK(status)) {
1392                 talloc_free(p2);
1393                 return status;
1394         }
1395
1396         *pp2 = p2;
1397
1398         return status;
1399 }