source3/winbindd/winbindd_misc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - miscellaneous other functions
   5
   6    Copyright (C) Tim Potter      2000
   7    Copyright (C) Andrew Bartlett 2002
   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 3 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, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "includes.h"
  24 #include "winbindd.h"
  25 #include "libcli/security/dom_sid.h"
  26
  27 #undef DBGC_CLASS
  28 #define DBGC_CLASS DBGC_WINBIND
  29
  30 static char *get_trust_type_string(TALLOC_CTX *mem_ctx,
  31                                    struct winbindd_tdc_domain *tdc,
  32                                    struct winbindd_domain *domain)
  33 {
  34         enum netr_SchannelType secure_channel_type = SEC_CHAN_NULL;
  35         char *s = NULL;
  36
  37         if (domain != NULL) {
  38                 secure_channel_type = domain->secure_channel_type;
  39         }
  40
  41         switch (secure_channel_type) {
  42         case SEC_CHAN_NULL: {
  43                 if (domain == NULL) {
  44                         DBG_ERR("Missing domain [%s]\n",
  45                                 tdc->domain_name);
  46                         return NULL;
  47                 }
  48                 if (domain->routing_domain == NULL) {
  49                         DBG_ERR("Missing routing for domain [%s]\n",
  50                                 tdc->domain_name);
  51                         return NULL;
  52                 }
  53                 s = talloc_asprintf(mem_ctx, "Routed (via %s)",
  54                                     domain->routing_domain->name);
  55                 if (s == NULL) {
  56                         return NULL;
  57                 }
  58                 break;
  59         }
  60
  61         case SEC_CHAN_LOCAL:
  62                 s = talloc_strdup(mem_ctx, "Local");
  63                 if (s == NULL) {
  64                         return NULL;
  65                 }
  66                 break;
  67
  68         case SEC_CHAN_WKSTA:
  69                 s = talloc_strdup(mem_ctx, "Workstation");
  70                 if (s == NULL) {
  71                         return NULL;
  72                 }
  73                 break;
  74
  75         case SEC_CHAN_BDC: {
  76                 int role = lp_server_role();
  77
  78                 if (role == ROLE_DOMAIN_PDC) {
  79                         s = talloc_strdup(mem_ctx, "PDC");
  80                         if (s == NULL) {
  81                                 return NULL;
  82                         }
  83                         break;
  84                 }
  85
  86                 if (role == ROLE_DOMAIN_BDC) {
  87                         s = talloc_strdup(mem_ctx, "BDC");
  88                         if (s == NULL) {
  89                                 return NULL;
  90                         }
  91                         break;
  92                 }
  93
  94                 s = talloc_strdup(mem_ctx, "RWDC");
  95                 if (s == NULL) {
  96                         return NULL;
  97                 }
  98                 break;
  99         }
 100
 101         case SEC_CHAN_RODC:
 102                 s = talloc_strdup(mem_ctx, "RODC");
 103                 if (s == NULL) {
 104                         return NULL;
 105                 }
 106                 break;
 107
 108         case SEC_CHAN_DNS_DOMAIN:
 109                 if (tdc->trust_attribs & LSA_TRUST_ATTRIBUTE_QUARANTINED_DOMAIN) {
 110                         s = talloc_strdup(mem_ctx, "External");
 111                         if (s == NULL) {
 112                                 return NULL;
 113                         }
 114                         break;
 115                 }
 116                 if (tdc->trust_attribs & LSA_TRUST_ATTRIBUTE_WITHIN_FOREST) {
 117                         s = talloc_strdup(mem_ctx, "In Forest");
 118                         if (s == NULL) {
 119                                 return NULL;
 120                         }
 121                         break;
 122                 }
 123                 if (tdc->trust_attribs & LSA_TRUST_ATTRIBUTE_TREAT_AS_EXTERNAL) {
 124                         s = talloc_strdup(mem_ctx, "External");
 125                         if (s == NULL) {
 126                                 return NULL;
 127                         }
 128                         break;
 129                 }
 130                 if (tdc->trust_attribs & LSA_TRUST_ATTRIBUTE_FOREST_TRANSITIVE) {
 131                         s = talloc_strdup(mem_ctx, "Forest");
 132                         if (s == NULL) {
 133                                 return NULL;
 134                         }
 135                         break;
 136                 }
 137                 s = talloc_strdup(mem_ctx, "External");
 138                 if (s == NULL) {
 139                         return NULL;
 140                 }
 141                 break;
 142
 143         case SEC_CHAN_DOMAIN:
 144                 s = talloc_strdup(mem_ctx, "External");
 145                 if (s == NULL) {
 146                         return NULL;
 147                 }
 148                 break;
 149
 150         default:
 151                 DBG_ERR("Unhandled secure_channel_type %d for domain[%s]\n",
 152                         secure_channel_type, tdc->domain_name);
 153                 return NULL;
 154         }
 155
 156         return s;
 157 }
 158
 159 static bool trust_is_inbound(struct winbindd_tdc_domain *domain)
 160 {
 161         if (domain->trust_flags & NETR_TRUST_FLAG_INBOUND) {
 162                 return true;
 163         }
 164         return false;
 165 }
 166
 167 static bool trust_is_outbound(struct winbindd_tdc_domain *domain)
 168 {
 169         if (domain->trust_flags & NETR_TRUST_FLAG_OUTBOUND) {
 170                 return true;
 171         }
 172         return false;
 173 }
 174
 175 static bool trust_is_transitive(struct winbindd_tdc_domain *domain)
 176 {
 177         bool transitive = false;
 178
 179         /*
 180          * Beware: order matters
 181          */
 182
 183         if (domain->trust_attribs & LSA_TRUST_ATTRIBUTE_WITHIN_FOREST) {
 184                 transitive = true;
 185         }
 186
 187         if (domain->trust_attribs & LSA_TRUST_ATTRIBUTE_FOREST_TRANSITIVE) {
 188                 transitive = true;
 189         }
 190
 191         if (domain->trust_attribs & LSA_TRUST_ATTRIBUTE_NON_TRANSITIVE) {
 192                 transitive = false;
 193         }
 194
 195         if (domain->trust_attribs & LSA_TRUST_ATTRIBUTE_QUARANTINED_DOMAIN) {
 196                 transitive = false;
 197         }
 198
 199         if (domain->trust_flags & NETR_TRUST_FLAG_PRIMARY) {
 200                 transitive = true;
 201         }
 202
 203         return transitive;
 204 }
 205
 206 bool winbindd_list_trusted_domains(struct winbindd_cli_state *state)
 207 {
 208         struct winbindd_tdc_domain *dom_list = NULL;
 209         size_t num_domains = 0;
 210         int extra_data_len = 0;
 211         char *extra_data = NULL;
 212         size_t i = 0;
 213         bool ret = false;
 214
 215         DBG_NOTICE("[%s (%u)]: list trusted domains\n",
 216                    state->client_name,
 217                    (unsigned int)state->pid);
 218
 219         if( !wcache_tdc_fetch_list( &dom_list, &num_domains )) {
 220                 goto done;
 221         }
 222
 223         extra_data = talloc_strdup(state->mem_ctx, "");
 224         if (extra_data == NULL) {
 225                 goto done;
 226         }
 227
 228         for ( i = 0; i < num_domains; i++ ) {
 229                 struct winbindd_domain *domain;
 230                 bool is_online = true;
 231                 struct winbindd_tdc_domain *d = NULL;
 232                 char *trust_type = NULL;
 233                 struct dom_sid_buf buf;
 234
 235                 d = &dom_list[i];
 236                 domain = find_domain_from_name_noinit(d->domain_name);
 237                 if (domain) {
 238                         is_online = domain->online;
 239                 }
 240
 241                 trust_type = get_trust_type_string(talloc_tos(), d, domain);
 242                 if (trust_type == NULL) {
 243                         continue;
 244                 }
 245
 246                 extra_data = talloc_asprintf_append_buffer(
 247                         extra_data,
 248                         "%s\\%s\\%s\\%s\\%s\\%s\\%s\\%s\n",
 249                         d->domain_name,
 250                         d->dns_name ? d->dns_name : "",
 251                         dom_sid_str_buf(&d->sid, &buf),
 252                         trust_type,
 253                         trust_is_transitive(d) ? "Yes" : "No",
 254                         trust_is_inbound(d) ? "Yes" : "No",
 255                         trust_is_outbound(d) ? "Yes" : "No",
 256                         is_online ? "Online" : "Offline" );
 257
 258                 TALLOC_FREE(trust_type);
 259         }
 260
 261         state->response->data.num_entries = num_domains;
 262
 263         extra_data_len = strlen(extra_data);
 264         if (extra_data_len > 0) {
 265
 266                 /* Strip the last \n */
 267                 extra_data[extra_data_len-1] = '\0';
 268
 269                 state->response->extra_data.data = extra_data;
 270                 state->response->length += extra_data_len;
 271         }
 272
 273         ret = true;
 274 done:
 275         TALLOC_FREE( dom_list );
 276         return ret;
 277 }
 278
 279 enum winbindd_result winbindd_dual_list_trusted_domains(struct winbindd_domain *domain,
 280                                                         struct winbindd_cli_state *state)
 281 {
 282         uint32_t i;
 283         int extra_data_len = 0;
 284         char *extra_data;
 285         NTSTATUS result;
 286         bool have_own_domain = False;
 287         struct netr_DomainTrustList trusts;
 288
 289         DBG_NOTICE("[%s %u]: list trusted domains\n",
 290                    state->client_name,
 291                    (unsigned int)state->pid);
 292
 293         result = wb_cache_trusted_domains(domain, state->mem_ctx, &trusts);
 294
 295         if (!NT_STATUS_IS_OK(result)) {
 296                 DEBUG(3, ("winbindd_dual_list_trusted_domains: trusted_domains returned %s\n",
 297                         nt_errstr(result) ));
 298                 return WINBINDD_ERROR;
 299         }
 300
 301         extra_data = talloc_strdup(state->mem_ctx, "");
 302
 303         for (i=0; i<trusts.count; i++) {
 304                 struct dom_sid_buf buf;
 305
 306                 if (trusts.array[i].sid == NULL) {
 307                         continue;
 308                 }
 309                 if (dom_sid_equal(trusts.array[i].sid, &global_sid_NULL)) {
 310                         continue;
 311                 }
 312
 313                 extra_data = talloc_asprintf_append_buffer(
 314                     extra_data, "%s\\%s\\%s\\%u\\%u\\%u\n",
 315                     trusts.array[i].netbios_name, trusts.array[i].dns_name,
 316                     dom_sid_str_buf(trusts.array[i].sid, &buf),
 317                     trusts.array[i].trust_flags,
 318                     (uint32_t)trusts.array[i].trust_type,
 319                     trusts.array[i].trust_attributes);
 320         }
 321
 322         /* add our primary domain */
 323
 324         for (i=0; i<trusts.count; i++) {
 325                 if (strequal(trusts.array[i].netbios_name, domain->name)) {
 326                         have_own_domain = True;
 327                         break;
 328                 }
 329         }
 330
 331         if (state->request->data.list_all_domains && !have_own_domain) {
 332                 struct dom_sid_buf buf;
 333                 extra_data = talloc_asprintf_append_buffer(
 334                         extra_data, "%s\\%s\\%s\n", domain->name,
 335                         domain->alt_name != NULL ?
 336                                 domain->alt_name :
 337                                 domain->name,
 338                         dom_sid_str_buf(&domain->sid, &buf));
 339         }
 340
 341         extra_data_len = strlen(extra_data);
 342         if (extra_data_len > 0) {
 343
 344                 /* Strip the last \n */
 345                 extra_data[extra_data_len-1] = '\0';
 346
 347                 state->response->extra_data.data = extra_data;
 348                 state->response->length += extra_data_len;
 349         }
 350
 351         return WINBINDD_OK;
 352 }
 353
 354 bool winbindd_dc_info(struct winbindd_cli_state *cli)
 355 {
 356         struct winbindd_domain *domain;
 357         char *dc_name, *dc_ip;
 358
 359         cli->request->domain_name[sizeof(cli->request->domain_name)-1] = '\0';
 360
 361         DBG_NOTICE("[%s (%u)]: domain_info [%s]\n",
 362                    cli->client_name,
 363                    (unsigned int)cli->pid,
 364                    cli->request->domain_name);
 365
 366         if (cli->request->domain_name[0] != '\0') {
 367                 domain = find_trust_from_name_noinit(
 368                         cli->request->domain_name);
 369                 if (domain == NULL) {
 370                         DEBUG(10, ("Could not find domain %s\n",
 371                                    cli->request->domain_name));
 372                         return false;
 373                 }
 374         } else {
 375                 domain = find_our_domain();
 376         }
 377
 378         if (!fetch_current_dc_from_gencache(
 379                     talloc_tos(), domain->name, &dc_name, &dc_ip)) {
 380                 DEBUG(10, ("fetch_current_dc_from_gencache(%s) failed\n",
 381                            domain->name));
 382                 return false;
 383         }
 384
 385         cli->response->data.num_entries = 1;
 386         cli->response->extra_data.data = talloc_asprintf(
 387                 cli->mem_ctx, "%s\n%s\n", dc_name, dc_ip);
 388
 389         TALLOC_FREE(dc_name);
 390         TALLOC_FREE(dc_ip);
 391
 392         if (cli->response->extra_data.data == NULL) {
 393                 return false;
 394         }
 395
 396         /* must add one to length to copy the 0 for string termination */
 397         cli->response->length +=
 398                 strlen((char *)cli->response->extra_data.data) + 1;
 399
 400         return true;
 401 }
 402
 403 bool winbindd_ping(struct winbindd_cli_state *state)
 404 {
 405         DBG_NOTICE("[%s (%u)]: ping\n",
 406                    state->client_name,
 407                    (unsigned int)state->pid);
 408         return true;
 409 }
 410
 411 /* List various tidbits of information */
 412
 413 bool winbindd_info(struct winbindd_cli_state *state)
 414 {
 415
 416         DBG_NOTICE("[%s (%u)]: request misc info\n",
 417                    state->client_name,
 418                    (unsigned int)state->pid);
 419
 420         state->response->data.info.winbind_separator = *lp_winbind_separator();
 421         fstrcpy(state->response->data.info.samba_version, samba_version_string());
 422         return true;
 423 }
 424
 425 /* Tell the client the current interface version */
 426
 427 bool winbindd_interface_version(struct winbindd_cli_state *state)
 428 {
 429         DBG_NOTICE("[%s (%u)]: request interface version (version = %d)\n",
 430                    state->client_name,
 431                    (unsigned int)state->pid,
 432                    WINBIND_INTERFACE_VERSION);
 433
 434         state->response->data.interface_version = WINBIND_INTERFACE_VERSION;
 435         return true;
 436 }
 437
 438 /* What domain are we a member of? */
 439
 440 bool winbindd_domain_name(struct winbindd_cli_state *state)
 441 {
 442         DBG_NOTICE("[%s (%u)]: request domain name\n",
 443                    state->client_name,
 444                    (unsigned int)state->pid);
 445
 446         fstrcpy(state->response->data.domain_name, lp_workgroup());
 447         return true;
 448 }
 449
 450 /* What's my name again? */
 451
 452 bool winbindd_netbios_name(struct winbindd_cli_state *state)
 453 {
 454         DBG_NOTICE("[%s (%u)]: request netbios name\n",
 455                    state->client_name,
 456                    (unsigned int)state->pid);
 457
 458         fstrcpy(state->response->data.netbios_name, lp_netbios_name());
 459         return true;
 460 }
 461
 462 /* Where can I find the privileged pipe? */
 463
 464 bool winbindd_priv_pipe_dir(struct winbindd_cli_state *state)
 465 {
 466         char *priv_dir;
 467
 468         DBG_NOTICE("[%s (%u)]: request location of privileged pipe\n",
 469                    state->client_name,
 470                    (unsigned int)state->pid);
 471
 472         priv_dir = get_winbind_priv_pipe_dir();
 473         state->response->extra_data.data = talloc_move(state->mem_ctx,
 474                                                       &priv_dir);
 475
 476         /* must add one to length to copy the 0 for string termination */
 477         state->response->length +=
 478                 strlen((char *)state->response->extra_data.data) + 1;
 479
 480         return true;
 481 }