nsswitch/libwbclient/wbc_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind client asynchronous API, utility functions
   5
   6    Copyright (C) Gerald (Jerry) Carter 2007-2008
   7
   8
   9    This library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Lesser General Public
  11    License as published by the Free Software Foundation; either
  12    version 3 of the License, or (at your option) any later version.
  13
  14    This library 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 GNU
  17    Library General Public License for more details.
  18
  19    You should have received a copy of the GNU Lesser General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 /* Required Headers */
  24
  25 #include "replace.h"
  26 #include "libwbclient.h"
  27 #include "../winbind_client.h"
  28
  29 /** @brief Ping winbindd to see if the daemon is running
  30  *
  31  * @return #wbcErr
  32  **/
  33 wbcErr wbcPing(void)
  34 {
  35         struct winbindd_request request;
  36         struct winbindd_response response;
  37
  38         /* Initialize request */
  39
  40         ZERO_STRUCT(request);
  41         ZERO_STRUCT(response);
  42
  43         return wbcRequestResponse(WINBINDD_PING, &request, &response);
  44 }
  45
  46 static void wbcInterfaceDetailsDestructor(void *ptr)
  47 {
  48         struct wbcInterfaceDetails *i = (struct wbcInterfaceDetails *)ptr;
  49         free(i->winbind_version);
  50         free(i->netbios_name);
  51         free(i->netbios_domain);
  52         free(i->dns_domain);
  53 }
  54
  55 /**
  56  * @brief Query useful information about the winbind service
  57  *
  58  * @param *_details     pointer to hold the struct wbcInterfaceDetails
  59  *
  60  * @return #wbcErr
  61  */
  62
  63 wbcErr wbcInterfaceDetails(struct wbcInterfaceDetails **_details)
  64 {
  65         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  66         struct wbcInterfaceDetails *info;
  67         struct wbcDomainInfo *domain = NULL;
  68         struct winbindd_request request;
  69         struct winbindd_response response;
  70
  71         /* Initialize request */
  72
  73         ZERO_STRUCT(request);
  74         ZERO_STRUCT(response);
  75
  76         info = (struct wbcInterfaceDetails *)wbcAllocateMemory(
  77                 1, sizeof(struct wbcInterfaceDetails),
  78                 wbcInterfaceDetailsDestructor);
  79         BAIL_ON_PTR_ERROR(info, wbc_status);
  80
  81         /* first the interface version */
  82         wbc_status = wbcRequestResponse(WINBINDD_INTERFACE_VERSION, NULL, &response);
  83         BAIL_ON_WBC_ERROR(wbc_status);
  84         info->interface_version = response.data.interface_version;
  85
  86         /* then the samba version and the winbind separator */
  87         wbc_status = wbcRequestResponse(WINBINDD_INFO, NULL, &response);
  88         BAIL_ON_WBC_ERROR(wbc_status);
  89
  90         info->winbind_version = strdup(response.data.info.samba_version);
  91         BAIL_ON_PTR_ERROR(info->winbind_version, wbc_status);
  92         info->winbind_separator = response.data.info.winbind_separator;
  93
  94         /* then the local netbios name */
  95         wbc_status = wbcRequestResponse(WINBINDD_NETBIOS_NAME, NULL, &response);
  96         BAIL_ON_WBC_ERROR(wbc_status);
  97
  98         info->netbios_name = strdup(response.data.netbios_name);
  99         BAIL_ON_PTR_ERROR(info->netbios_name, wbc_status);
 100
 101         /* then the local workgroup name */
 102         wbc_status = wbcRequestResponse(WINBINDD_DOMAIN_NAME, NULL, &response);
 103         BAIL_ON_WBC_ERROR(wbc_status);
 104
 105         info->netbios_domain = strdup(response.data.domain_name);
 106         BAIL_ON_PTR_ERROR(info->netbios_domain, wbc_status);
 107
 108         wbc_status = wbcDomainInfo(info->netbios_domain, &domain);
 109         if (wbc_status == WBC_ERR_DOMAIN_NOT_FOUND) {
 110                 /* maybe it's a standalone server */
 111                 domain = NULL;
 112                 wbc_status = WBC_ERR_SUCCESS;
 113         } else {
 114                 BAIL_ON_WBC_ERROR(wbc_status);
 115         }
 116
 117         if (domain) {
 118                 info->dns_domain = strdup(domain->dns_name);
 119                 wbcFreeMemory(domain);
 120                 BAIL_ON_PTR_ERROR(info->dns_domain, wbc_status);
 121         } else {
 122                 info->dns_domain = NULL;
 123         }
 124
 125         *_details = info;
 126         info = NULL;
 127
 128         wbc_status = WBC_ERR_SUCCESS;
 129
 130 done:
 131         wbcFreeMemory(info);
 132         return wbc_status;
 133 }
 134
 135 static void wbcDomainInfoDestructor(void *ptr)
 136 {
 137         struct wbcDomainInfo *i = (struct wbcDomainInfo *)ptr;
 138         free(i->short_name);
 139         free(i->dns_name);
 140 }
 141
 142 /** @brief Lookup the current status of a trusted domain, sync wrapper
 143  *
 144  * @param domain      Domain to query
 145  * @param *dinfo       Pointer to returned struct wbcDomainInfo
 146  *
 147  * @return #wbcErr
 148  */
 149
 150 wbcErr wbcDomainInfo(const char *domain, struct wbcDomainInfo **dinfo)
 151 {
 152         struct winbindd_request request;
 153         struct winbindd_response response;
 154         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 155         struct wbcDomainInfo *info = NULL;
 156
 157         if (!domain || !dinfo) {
 158                 wbc_status = WBC_ERR_INVALID_PARAM;
 159                 BAIL_ON_WBC_ERROR(wbc_status);
 160         }
 161
 162         /* Initialize request */
 163
 164         ZERO_STRUCT(request);
 165         ZERO_STRUCT(response);
 166
 167         strncpy(request.domain_name, domain,
 168                 sizeof(request.domain_name)-1);
 169
 170         wbc_status = wbcRequestResponse(WINBINDD_DOMAIN_INFO,
 171                                         &request,
 172                                         &response);
 173         BAIL_ON_WBC_ERROR(wbc_status);
 174
 175         info = (struct wbcDomainInfo *)wbcAllocateMemory(
 176                 1, sizeof(struct wbcDomainInfo), wbcDomainInfoDestructor);
 177         BAIL_ON_PTR_ERROR(info, wbc_status);
 178
 179         info->short_name = strdup(response.data.domain_info.name);
 180         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 181
 182         info->dns_name = strdup(response.data.domain_info.alt_name);
 183         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 184
 185         wbc_status = wbcStringToSid(response.data.domain_info.sid,
 186                                     &info->sid);
 187         BAIL_ON_WBC_ERROR(wbc_status);
 188
 189         if (response.data.domain_info.native_mode)
 190                 info->domain_flags |= WBC_DOMINFO_DOMAIN_NATIVE;
 191         if (response.data.domain_info.active_directory)
 192                 info->domain_flags |= WBC_DOMINFO_DOMAIN_AD;
 193         if (response.data.domain_info.primary)
 194                 info->domain_flags |= WBC_DOMINFO_DOMAIN_PRIMARY;
 195
 196         *dinfo = info;
 197         info = NULL;
 198
 199         wbc_status = WBC_ERR_SUCCESS;
 200
 201  done:
 202         wbcFreeMemory(info);
 203         return wbc_status;
 204 }
 205
 206 /* Get the list of current DCs */
 207 wbcErr wbcDcInfo(const char *domain, size_t *num_dcs,
 208                  const char ***dc_names, const char ***dc_ips)
 209 {
 210         struct winbindd_request request;
 211         struct winbindd_response response;
 212         const char **names = NULL;
 213         const char **ips = NULL;
 214         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 215         size_t extra_len;
 216         int i;
 217         char *p;
 218
 219         /* Initialise request */
 220
 221         ZERO_STRUCT(request);
 222         ZERO_STRUCT(response);
 223
 224         if (domain != NULL) {
 225                 strncpy(request.domain_name, domain,
 226                         sizeof(request.domain_name) - 1);
 227         }
 228
 229         wbc_status = wbcRequestResponse(WINBINDD_DC_INFO,
 230                                         &request, &response);
 231         BAIL_ON_WBC_ERROR(wbc_status);
 232
 233         names = wbcAllocateStringArray(response.data.num_entries);
 234         BAIL_ON_PTR_ERROR(names, wbc_status);
 235
 236         ips = wbcAllocateStringArray(response.data.num_entries);
 237         BAIL_ON_PTR_ERROR(ips, wbc_status);
 238
 239         wbc_status = WBC_ERR_INVALID_RESPONSE;
 240
 241         p = (char *)response.extra_data.data;
 242
 243         if (response.length < (sizeof(struct winbindd_response)+1)) {
 244                 goto done;
 245         }
 246
 247         extra_len = response.length - sizeof(struct winbindd_response);
 248
 249         if (p[extra_len-1] != '\0') {
 250                 goto done;
 251         }
 252
 253         for (i=0; i<response.data.num_entries; i++) {
 254                 char *q;
 255
 256                 q = strchr(p, '\n');
 257                 if (q == NULL) {
 258                         goto done;
 259                 }
 260                 names[i] = strndup(p, q-p);
 261                 BAIL_ON_PTR_ERROR(names[i], wbc_status);
 262                 p = q+1;
 263
 264                 q = strchr(p, '\n');
 265                 if (q == NULL) {
 266                         goto done;
 267                 }
 268                 ips[i] = strndup(p, q-p);
 269                 BAIL_ON_PTR_ERROR(ips[i], wbc_status);
 270                 p = q+1;
 271         }
 272         if (p[0] != '\0') {
 273                 goto done;
 274         }
 275
 276         wbc_status = WBC_ERR_SUCCESS;
 277 done:
 278         if (response.extra_data.data)
 279                 free(response.extra_data.data);
 280
 281         if (WBC_ERROR_IS_OK(wbc_status)) {
 282                 *num_dcs = response.data.num_entries;
 283                 *dc_names = names;
 284                 names = NULL;
 285                 *dc_ips = ips;
 286                 ips = NULL;
 287         }
 288         wbcFreeMemory(names);
 289         wbcFreeMemory(ips);
 290         return wbc_status;
 291 }
 292
 293 /* Resolve a NetbiosName via WINS */
 294 wbcErr wbcResolveWinsByName(const char *name, char **ip)
 295 {
 296         struct winbindd_request request;
 297         struct winbindd_response response;
 298         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 299         char *ipaddr;
 300
 301         ZERO_STRUCT(request);
 302         ZERO_STRUCT(response);
 303
 304         /* Send request */
 305
 306         strncpy(request.data.winsreq, name,
 307                 sizeof(request.data.winsreq)-1);
 308
 309         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYNAME,
 310                                         &request,
 311                                         &response);
 312         BAIL_ON_WBC_ERROR(wbc_status);
 313
 314         /* Display response */
 315
 316         ipaddr = wbcStrDup(response.data.winsresp);
 317         BAIL_ON_PTR_ERROR(ipaddr, wbc_status);
 318
 319         *ip = ipaddr;
 320         wbc_status = WBC_ERR_SUCCESS;
 321
 322  done:
 323         return wbc_status;
 324 }
 325
 326 /* Resolve an IP address via WINS into a NetbiosName */
 327 wbcErr wbcResolveWinsByIP(const char *ip, char **name)
 328 {
 329         struct winbindd_request request;
 330         struct winbindd_response response;
 331         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 332         char *name_str;
 333
 334         ZERO_STRUCT(request);
 335         ZERO_STRUCT(response);
 336
 337         /* Send request */
 338
 339         strncpy(request.data.winsreq, ip,
 340                 sizeof(request.data.winsreq)-1);
 341
 342         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYIP,
 343                                         &request,
 344                                         &response);
 345         BAIL_ON_WBC_ERROR(wbc_status);
 346
 347         /* Display response */
 348
 349         name_str = wbcStrDup(response.data.winsresp);
 350         BAIL_ON_PTR_ERROR(name_str, wbc_status);
 351
 352         *name = name_str;
 353         wbc_status = WBC_ERR_SUCCESS;
 354
 355  done:
 356         return wbc_status;
 357 }
 358
 359 /**
 360  */
 361
 362 static wbcErr process_domain_info_string(struct wbcDomainInfo *info,
 363                                          char *info_string)
 364 {
 365         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 366         char *r = NULL;
 367         char *s = NULL;
 368
 369         r = info_string;
 370
 371         /* Short Name */
 372         if ((s = strchr(r, '\\')) == NULL) {
 373                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 374                 BAIL_ON_WBC_ERROR(wbc_status);
 375         }
 376         *s = '\0';
 377         s++;
 378
 379         info->short_name = strdup(r);
 380         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 381
 382
 383         /* DNS Name */
 384         r = s;
 385         if ((s = strchr(r, '\\')) == NULL) {
 386                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 387                 BAIL_ON_WBC_ERROR(wbc_status);
 388         }
 389         *s = '\0';
 390         s++;
 391
 392         info->dns_name = strdup(r);
 393         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 394
 395         /* SID */
 396         r = s;
 397         if ((s = strchr(r, '\\')) == NULL) {
 398                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 399                 BAIL_ON_WBC_ERROR(wbc_status);
 400         }
 401         *s = '\0';
 402         s++;
 403
 404         wbc_status = wbcStringToSid(r, &info->sid);
 405         BAIL_ON_WBC_ERROR(wbc_status);
 406
 407         /* Trust type */
 408         r = s;
 409         if ((s = strchr(r, '\\')) == NULL) {
 410                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 411                 BAIL_ON_WBC_ERROR(wbc_status);
 412         }
 413         *s = '\0';
 414         s++;
 415
 416         if (strcmp(r, "None") == 0) {
 417                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_NONE;
 418         } else if (strcmp(r, "External") == 0) {
 419                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_EXTERNAL;
 420         } else if (strcmp(r, "Forest") == 0) {
 421                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_FOREST;
 422         } else if (strcmp(r, "In Forest") == 0) {
 423                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_IN_FOREST;
 424         } else {
 425                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 426                 BAIL_ON_WBC_ERROR(wbc_status);
 427         }
 428
 429         /* Transitive */
 430         r = s;
 431         if ((s = strchr(r, '\\')) == NULL) {
 432                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 433                 BAIL_ON_WBC_ERROR(wbc_status);
 434         }
 435         *s = '\0';
 436         s++;
 437
 438         if (strcmp(r, "Yes") == 0) {
 439                 info->trust_flags |= WBC_DOMINFO_TRUST_TRANSITIVE;
 440         }
 441
 442         /* Incoming */
 443         r = s;
 444         if ((s = strchr(r, '\\')) == NULL) {
 445                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 446                 BAIL_ON_WBC_ERROR(wbc_status);
 447         }
 448         *s = '\0';
 449         s++;
 450
 451         if (strcmp(r, "Yes") == 0) {
 452                 info->trust_flags |= WBC_DOMINFO_TRUST_INCOMING;
 453         }
 454
 455         /* Outgoing */
 456         r = s;
 457         if ((s = strchr(r, '\\')) == NULL) {
 458                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 459                 BAIL_ON_WBC_ERROR(wbc_status);
 460         }
 461         *s = '\0';
 462         s++;
 463
 464         if (strcmp(r, "Yes") == 0) {
 465                 info->trust_flags |= WBC_DOMINFO_TRUST_OUTGOING;
 466         }
 467
 468         /* Online/Offline status */
 469         r = s;
 470         if ( strcmp(r, "Offline") == 0) {
 471                 info->domain_flags |= WBC_DOMINFO_DOMAIN_OFFLINE;
 472         }
 473
 474         wbc_status = WBC_ERR_SUCCESS;
 475
 476  done:
 477         return wbc_status;
 478 }
 479
 480 static void wbcDomainInfoListDestructor(void *ptr)
 481 {
 482         struct wbcDomainInfo *i = (struct wbcDomainInfo *)ptr;
 483
 484         while (i->short_name != NULL) {
 485                 free(i->short_name);
 486                 free(i->dns_name);
 487                 i += 1;
 488         }
 489 }
 490
 491 /* Enumerate the domain trusts known by Winbind */
 492 wbcErr wbcListTrusts(struct wbcDomainInfo **domains, size_t *num_domains)
 493 {
 494         struct winbindd_response response;
 495         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 496         char *p = NULL;
 497         char *extra_data = NULL;
 498         struct wbcDomainInfo *d_list = NULL;
 499         int i = 0;
 500
 501         *domains = NULL;
 502         *num_domains = 0;
 503
 504         ZERO_STRUCT(response);
 505
 506         /* Send request */
 507
 508         wbc_status = wbcRequestResponse(WINBINDD_LIST_TRUSTDOM,
 509                                         NULL,
 510                                         &response);
 511         BAIL_ON_WBC_ERROR(wbc_status);
 512
 513         /* Decode the response */
 514
 515         p = (char *)response.extra_data.data;
 516
 517         if ((p == NULL) || (strlen(p) == 0)) {
 518                 /* We should always at least get back our
 519                    own SAM domain */
 520
 521                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
 522                 BAIL_ON_WBC_ERROR(wbc_status);
 523         }
 524
 525         d_list = (struct wbcDomainInfo *)wbcAllocateMemory(
 526                 response.data.num_entries + 1,sizeof(struct wbcDomainInfo),
 527                 wbcDomainInfoListDestructor);
 528         BAIL_ON_PTR_ERROR(d_list, wbc_status);
 529
 530         extra_data = strdup((char*)response.extra_data.data);
 531         BAIL_ON_PTR_ERROR(extra_data, wbc_status);
 532
 533         p = extra_data;
 534
 535         /* Outer loop processes the list of domain information */
 536
 537         for (i=0; i<response.data.num_entries && p; i++) {
 538                 char *next = strchr(p, '\n');
 539
 540                 if (next) {
 541                         *next = '\0';
 542                         next++;
 543                 }
 544
 545                 wbc_status = process_domain_info_string(&d_list[i], p);
 546                 BAIL_ON_WBC_ERROR(wbc_status);
 547
 548                 p = next;
 549         }
 550
 551         *domains = d_list;
 552         d_list = NULL;
 553         *num_domains = i;
 554
 555  done:
 556         winbindd_free_response(&response);
 557         wbcFreeMemory(d_list);
 558         free(extra_data);
 559         return wbc_status;
 560 }
 561
 562 static void wbcDomainControllerInfoDestructor(void *ptr)
 563 {
 564         struct wbcDomainControllerInfo *i =
 565                 (struct wbcDomainControllerInfo *)ptr;
 566         free(i->dc_name);
 567 }
 568
 569 /* Enumerate the domain trusts known by Winbind */
 570 wbcErr wbcLookupDomainController(const char *domain,
 571                                  uint32_t flags,
 572                                 struct wbcDomainControllerInfo **dc_info)
 573 {
 574         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 575         struct winbindd_request request;
 576         struct winbindd_response response;
 577         struct wbcDomainControllerInfo *dc = NULL;
 578
 579         /* validate input params */
 580
 581         if (!domain || !dc_info) {
 582                 wbc_status = WBC_ERR_INVALID_PARAM;
 583                 BAIL_ON_WBC_ERROR(wbc_status);
 584         }
 585
 586         ZERO_STRUCT(request);
 587         ZERO_STRUCT(response);
 588
 589         strncpy(request.data.dsgetdcname.domain_name, domain,
 590                 sizeof(request.data.dsgetdcname.domain_name)-1);
 591
 592         request.flags = flags;
 593
 594         dc = (struct wbcDomainControllerInfo *)wbcAllocateMemory(
 595                  1, sizeof(struct wbcDomainControllerInfo),
 596                 wbcDomainControllerInfoDestructor);
 597         BAIL_ON_PTR_ERROR(dc, wbc_status);
 598
 599         /* Send request */
 600
 601         wbc_status = wbcRequestResponse(WINBINDD_DSGETDCNAME,
 602                                         &request,
 603                                         &response);
 604         BAIL_ON_WBC_ERROR(wbc_status);
 605
 606         dc->dc_name = strdup(response.data.dsgetdcname.dc_unc);
 607         BAIL_ON_PTR_ERROR(dc->dc_name, wbc_status);
 608
 609         *dc_info = dc;
 610         dc = NULL;
 611
 612 done:
 613         wbcFreeMemory(dc);
 614         return wbc_status;
 615 }
 616
 617 static void wbcDomainControllerInfoExDestructor(void *ptr)
 618 {
 619         struct wbcDomainControllerInfoEx *i =
 620                 (struct wbcDomainControllerInfoEx *)ptr;
 621         free(discard_const_p(char, i->dc_unc));
 622         free(discard_const_p(char, i->dc_address));
 623         free(discard_const_p(char, i->domain_guid));
 624         free(discard_const_p(char, i->domain_name));
 625         free(discard_const_p(char, i->forest_name));
 626         free(discard_const_p(char, i->dc_site_name));
 627         free(discard_const_p(char, i->client_site_name));
 628 }
 629
 630 static wbcErr wbc_create_domain_controller_info_ex(const struct winbindd_response *resp,
 631                                                    struct wbcDomainControllerInfoEx **_i)
 632 {
 633         wbcErr wbc_status = WBC_ERR_SUCCESS;
 634         struct wbcDomainControllerInfoEx *i;
 635         struct wbcGuid guid;
 636
 637         i = (struct wbcDomainControllerInfoEx *)wbcAllocateMemory(
 638                 1, sizeof(struct wbcDomainControllerInfoEx),
 639                 wbcDomainControllerInfoExDestructor);
 640         BAIL_ON_PTR_ERROR(i, wbc_status);
 641
 642         i->dc_unc = strdup(resp->data.dsgetdcname.dc_unc);
 643         BAIL_ON_PTR_ERROR(i->dc_unc, wbc_status);
 644
 645         i->dc_address = strdup(resp->data.dsgetdcname.dc_address);
 646         BAIL_ON_PTR_ERROR(i->dc_address, wbc_status);
 647
 648         i->dc_address_type = resp->data.dsgetdcname.dc_address_type;
 649
 650         wbc_status = wbcStringToGuid(resp->data.dsgetdcname.domain_guid, &guid);
 651         if (WBC_ERROR_IS_OK(wbc_status)) {
 652                 i->domain_guid = (struct wbcGuid *)malloc(
 653                         sizeof(struct wbcGuid));
 654                 BAIL_ON_PTR_ERROR(i->domain_guid, wbc_status);
 655
 656                 *i->domain_guid = guid;
 657         }
 658
 659         i->domain_name = strdup(resp->data.dsgetdcname.domain_name);
 660         BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
 661
 662         if (resp->data.dsgetdcname.forest_name[0] != '\0') {
 663                 i->forest_name = strdup(resp->data.dsgetdcname.forest_name);
 664                 BAIL_ON_PTR_ERROR(i->forest_name, wbc_status);
 665         }
 666
 667         i->dc_flags = resp->data.dsgetdcname.dc_flags;
 668
 669         if (resp->data.dsgetdcname.dc_site_name[0] != '\0') {
 670                 i->dc_site_name = strdup(resp->data.dsgetdcname.dc_site_name);
 671                 BAIL_ON_PTR_ERROR(i->dc_site_name, wbc_status);
 672         }
 673
 674         if (resp->data.dsgetdcname.client_site_name[0] != '\0') {
 675                 i->client_site_name = strdup(
 676                         resp->data.dsgetdcname.client_site_name);
 677                 BAIL_ON_PTR_ERROR(i->client_site_name, wbc_status);
 678         }
 679
 680         *_i = i;
 681         i = NULL;
 682
 683 done:
 684         if (i != NULL) {
 685                 wbcFreeMemory(i);
 686         }
 687         return wbc_status;
 688 }
 689
 690 /* Get extended domain controller information */
 691 wbcErr wbcLookupDomainControllerEx(const char *domain,
 692                                    struct wbcGuid *guid,
 693                                    const char *site,
 694                                    uint32_t flags,
 695                                    struct wbcDomainControllerInfoEx **dc_info)
 696 {
 697         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 698         struct winbindd_request request;
 699         struct winbindd_response response;
 700
 701         /* validate input params */
 702
 703         if (!domain || !dc_info) {
 704                 wbc_status = WBC_ERR_INVALID_PARAM;
 705                 BAIL_ON_WBC_ERROR(wbc_status);
 706         }
 707
 708         ZERO_STRUCT(request);
 709         ZERO_STRUCT(response);
 710
 711         request.data.dsgetdcname.flags = flags;
 712
 713         strncpy(request.data.dsgetdcname.domain_name, domain,
 714                 sizeof(request.data.dsgetdcname.domain_name)-1);
 715
 716         if (site) {
 717                 strncpy(request.data.dsgetdcname.site_name, site,
 718                         sizeof(request.data.dsgetdcname.site_name)-1);
 719         }
 720
 721         if (guid) {
 722                 char *str = NULL;
 723
 724                 wbc_status = wbcGuidToString(guid, &str);
 725                 BAIL_ON_WBC_ERROR(wbc_status);
 726
 727                 strncpy(request.data.dsgetdcname.domain_guid, str,
 728                         sizeof(request.data.dsgetdcname.domain_guid)-1);
 729
 730                 wbcFreeMemory(str);
 731         }
 732
 733         /* Send request */
 734
 735         wbc_status = wbcRequestResponse(WINBINDD_DSGETDCNAME,
 736                                         &request,
 737                                         &response);
 738         BAIL_ON_WBC_ERROR(wbc_status);
 739
 740         if (dc_info) {
 741                 wbc_status = wbc_create_domain_controller_info_ex(&response,
 742                                                                   dc_info);
 743                 BAIL_ON_WBC_ERROR(wbc_status);
 744         }
 745
 746         wbc_status = WBC_ERR_SUCCESS;
 747 done:
 748         return wbc_status;
 749 }
 750
 751 static void wbcNamedBlobDestructor(void *ptr)
 752 {
 753         struct wbcNamedBlob *b = (struct wbcNamedBlob *)ptr;
 754
 755         while (b->name != NULL) {
 756                 free(discard_const_p(char, b->name));
 757                 free(b->blob.data);
 758                 b += 1;
 759         }
 760 }
 761
 762 /* Initialize a named blob and add to list of blobs */
 763 wbcErr wbcAddNamedBlob(size_t *num_blobs,
 764                        struct wbcNamedBlob **pblobs,
 765                        const char *name,
 766                        uint32_t flags,
 767                        uint8_t *data,
 768                        size_t length)
 769 {
 770         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 771         struct wbcNamedBlob *blobs, *blob;
 772
 773         if (name == NULL) {
 774                 return WBC_ERR_INVALID_PARAM;
 775         }
 776
 777         /*
 778          * Overallocate the b->name==NULL terminator for
 779          * wbcNamedBlobDestructor
 780          */
 781         blobs = (struct wbcNamedBlob *)wbcAllocateMemory(
 782                 *num_blobs + 2, sizeof(struct wbcNamedBlob),
 783                 wbcNamedBlobDestructor);
 784
 785         if (blobs == NULL) {
 786                 return WBC_ERR_NO_MEMORY;
 787         }
 788
 789         if (*pblobs != NULL) {
 790                 struct wbcNamedBlob *old = *pblobs;
 791                 memcpy(blobs, old, sizeof(struct wbcNamedBlob) * (*num_blobs));
 792                 if (*num_blobs != 0) {
 793                         /* end indicator for wbcNamedBlobDestructor */
 794                         old[0].name = NULL;
 795                 }
 796                 wbcFreeMemory(old);
 797         }
 798         *pblobs = blobs;
 799
 800         blob = &blobs[*num_blobs];
 801
 802         blob->name = strdup(name);
 803         BAIL_ON_PTR_ERROR(blob->name, wbc_status);
 804         blob->flags = flags;
 805
 806         blob->blob.length = length;
 807         blob->blob.data = (uint8_t *)malloc(length);
 808         BAIL_ON_PTR_ERROR(blob->blob.data, wbc_status);
 809         memcpy(blob->blob.data, data, length);
 810
 811         *num_blobs += 1;
 812         *pblobs = blobs;
 813         blobs = NULL;
 814
 815         wbc_status = WBC_ERR_SUCCESS;
 816 done:
 817         wbcFreeMemory(blobs);
 818         return wbc_status;
 819 }