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                 sizeof(struct wbcInterfaceDetails), 1,
  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                 sizeof(struct wbcDomainInfo), 1, 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
 207 /* Resolve a NetbiosName via WINS */
 208 wbcErr wbcResolveWinsByName(const char *name, char **ip)
 209 {
 210         struct winbindd_request request;
 211         struct winbindd_response response;
 212         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 213         char *ipaddr;
 214
 215         ZERO_STRUCT(request);
 216         ZERO_STRUCT(response);
 217
 218         /* Send request */
 219
 220         strncpy(request.data.winsreq, name,
 221                 sizeof(request.data.winsreq)-1);
 222
 223         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYNAME,
 224                                         &request,
 225                                         &response);
 226         BAIL_ON_WBC_ERROR(wbc_status);
 227
 228         /* Display response */
 229
 230         ipaddr = wbcStrDup(response.data.winsresp);
 231         BAIL_ON_PTR_ERROR(ipaddr, wbc_status);
 232
 233         *ip = ipaddr;
 234         wbc_status = WBC_ERR_SUCCESS;
 235
 236  done:
 237         return wbc_status;
 238 }
 239
 240 /* Resolve an IP address via WINS into a NetbiosName */
 241 wbcErr wbcResolveWinsByIP(const char *ip, char **name)
 242 {
 243         struct winbindd_request request;
 244         struct winbindd_response response;
 245         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 246         char *name_str;
 247
 248         ZERO_STRUCT(request);
 249         ZERO_STRUCT(response);
 250
 251         /* Send request */
 252
 253         strncpy(request.data.winsreq, ip,
 254                 sizeof(request.data.winsreq)-1);
 255
 256         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYIP,
 257                                         &request,
 258                                         &response);
 259         BAIL_ON_WBC_ERROR(wbc_status);
 260
 261         /* Display response */
 262
 263         name_str = wbcStrDup(response.data.winsresp);
 264         BAIL_ON_PTR_ERROR(name_str, wbc_status);
 265
 266         *name = name_str;
 267         wbc_status = WBC_ERR_SUCCESS;
 268
 269  done:
 270         return wbc_status;
 271 }
 272
 273 /**
 274  */
 275
 276 static wbcErr process_domain_info_string(struct wbcDomainInfo *info,
 277                                          char *info_string)
 278 {
 279         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 280         char *r = NULL;
 281         char *s = NULL;
 282
 283         r = info_string;
 284
 285         /* Short Name */
 286         if ((s = strchr(r, '\\')) == NULL) {
 287                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 288                 BAIL_ON_WBC_ERROR(wbc_status);
 289         }
 290         *s = '\0';
 291         s++;
 292
 293         info->short_name = strdup(r);
 294         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 295
 296
 297         /* DNS Name */
 298         r = s;
 299         if ((s = strchr(r, '\\')) == NULL) {
 300                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 301                 BAIL_ON_WBC_ERROR(wbc_status);
 302         }
 303         *s = '\0';
 304         s++;
 305
 306         info->dns_name = strdup(r);
 307         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 308
 309         /* SID */
 310         r = s;
 311         if ((s = strchr(r, '\\')) == NULL) {
 312                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 313                 BAIL_ON_WBC_ERROR(wbc_status);
 314         }
 315         *s = '\0';
 316         s++;
 317
 318         wbc_status = wbcStringToSid(r, &info->sid);
 319         BAIL_ON_WBC_ERROR(wbc_status);
 320
 321         /* Trust type */
 322         r = s;
 323         if ((s = strchr(r, '\\')) == NULL) {
 324                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 325                 BAIL_ON_WBC_ERROR(wbc_status);
 326         }
 327         *s = '\0';
 328         s++;
 329
 330         if (strcmp(r, "None") == 0) {
 331                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_NONE;
 332         } else if (strcmp(r, "External") == 0) {
 333                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_EXTERNAL;
 334         } else if (strcmp(r, "Forest") == 0) {
 335                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_FOREST;
 336         } else if (strcmp(r, "In Forest") == 0) {
 337                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_IN_FOREST;
 338         } else {
 339                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 340                 BAIL_ON_WBC_ERROR(wbc_status);
 341         }
 342
 343         /* Transitive */
 344         r = s;
 345         if ((s = strchr(r, '\\')) == NULL) {
 346                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 347                 BAIL_ON_WBC_ERROR(wbc_status);
 348         }
 349         *s = '\0';
 350         s++;
 351
 352         if (strcmp(r, "Yes") == 0) {
 353                 info->trust_flags |= WBC_DOMINFO_TRUST_TRANSITIVE;
 354         }
 355
 356         /* Incoming */
 357         r = s;
 358         if ((s = strchr(r, '\\')) == NULL) {
 359                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 360                 BAIL_ON_WBC_ERROR(wbc_status);
 361         }
 362         *s = '\0';
 363         s++;
 364
 365         if (strcmp(r, "Yes") == 0) {
 366                 info->trust_flags |= WBC_DOMINFO_TRUST_INCOMING;
 367         }
 368
 369         /* Outgoing */
 370         r = s;
 371         if ((s = strchr(r, '\\')) == NULL) {
 372                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 373                 BAIL_ON_WBC_ERROR(wbc_status);
 374         }
 375         *s = '\0';
 376         s++;
 377
 378         if (strcmp(r, "Yes") == 0) {
 379                 info->trust_flags |= WBC_DOMINFO_TRUST_OUTGOING;
 380         }
 381
 382         /* Online/Offline status */
 383
 384         r = s;
 385         if (r == NULL) {
 386                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 387                 BAIL_ON_WBC_ERROR(wbc_status);
 388         }
 389         if ( strcmp(r, "Offline") == 0) {
 390                 info->domain_flags |= WBC_DOMINFO_DOMAIN_OFFLINE;
 391         }
 392
 393         wbc_status = WBC_ERR_SUCCESS;
 394
 395  done:
 396         return wbc_status;
 397 }
 398
 399 static void wbcDomainInfoListDestructor(void *ptr)
 400 {
 401         struct wbcDomainInfo *i = (struct wbcDomainInfo *)ptr;
 402
 403         while (i->short_name != NULL) {
 404                 free(i->short_name);
 405                 free(i->dns_name);
 406                 i += 1;
 407         }
 408 }
 409
 410 /* Enumerate the domain trusts known by Winbind */
 411 wbcErr wbcListTrusts(struct wbcDomainInfo **domains, size_t *num_domains)
 412 {
 413         struct winbindd_response response;
 414         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 415         char *p = NULL;
 416         char *extra_data = NULL;
 417         struct wbcDomainInfo *d_list = NULL;
 418         int i = 0;
 419
 420         *domains = NULL;
 421         *num_domains = 0;
 422
 423         ZERO_STRUCT(response);
 424
 425         /* Send request */
 426
 427         wbc_status = wbcRequestResponse(WINBINDD_LIST_TRUSTDOM,
 428                                         NULL,
 429                                         &response);
 430         BAIL_ON_WBC_ERROR(wbc_status);
 431
 432         /* Decode the response */
 433
 434         p = (char *)response.extra_data.data;
 435
 436         if ((p == NULL) || (strlen(p) == 0)) {
 437                 /* We should always at least get back our
 438                    own SAM domain */
 439
 440                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
 441                 BAIL_ON_WBC_ERROR(wbc_status);
 442         }
 443
 444         d_list = (struct wbcDomainInfo *)wbcAllocateMemory(
 445                 sizeof(struct wbcDomainInfo), response.data.num_entries + 1,
 446                 wbcDomainInfoListDestructor);
 447         BAIL_ON_PTR_ERROR(d_list, wbc_status);
 448
 449         extra_data = strdup((char*)response.extra_data.data);
 450         BAIL_ON_PTR_ERROR(extra_data, wbc_status);
 451
 452         p = extra_data;
 453
 454         /* Outer loop processes the list of domain information */
 455
 456         for (i=0; i<response.data.num_entries && p; i++) {
 457                 char *next = strchr(p, '\n');
 458
 459                 if (next) {
 460                         *next = '\0';
 461                         next++;
 462                 }
 463
 464                 wbc_status = process_domain_info_string(&d_list[i], p);
 465                 BAIL_ON_WBC_ERROR(wbc_status);
 466
 467                 p = next;
 468         }
 469
 470         *domains = d_list;
 471         d_list = NULL;
 472         *num_domains = i;
 473
 474  done:
 475         winbindd_free_response(&response);
 476         wbcFreeMemory(d_list);
 477         free(extra_data);
 478         return wbc_status;
 479 }
 480
 481 static void wbcDomainControllerInfoDestructor(void *ptr)
 482 {
 483         struct wbcDomainControllerInfo *i =
 484                 (struct wbcDomainControllerInfo *)ptr;
 485         free(i->dc_name);
 486 }
 487
 488 /* Enumerate the domain trusts known by Winbind */
 489 wbcErr wbcLookupDomainController(const char *domain,
 490                                  uint32_t flags,
 491                                 struct wbcDomainControllerInfo **dc_info)
 492 {
 493         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 494         struct winbindd_request request;
 495         struct winbindd_response response;
 496         struct wbcDomainControllerInfo *dc = NULL;
 497
 498         /* validate input params */
 499
 500         if (!domain || !dc_info) {
 501                 wbc_status = WBC_ERR_INVALID_PARAM;
 502                 BAIL_ON_WBC_ERROR(wbc_status);
 503         }
 504
 505         ZERO_STRUCT(request);
 506         ZERO_STRUCT(response);
 507
 508         strncpy(request.data.dsgetdcname.domain_name, domain,
 509                 sizeof(request.data.dsgetdcname.domain_name)-1);
 510
 511         request.flags = flags;
 512
 513         dc = (struct wbcDomainControllerInfo *)wbcAllocateMemory(
 514                 sizeof(struct wbcDomainControllerInfo), 1,
 515                 wbcDomainControllerInfoDestructor);
 516         BAIL_ON_PTR_ERROR(dc, wbc_status);
 517
 518         /* Send request */
 519
 520         wbc_status = wbcRequestResponse(WINBINDD_DSGETDCNAME,
 521                                         &request,
 522                                         &response);
 523         BAIL_ON_WBC_ERROR(wbc_status);
 524
 525         dc->dc_name = strdup(response.data.dsgetdcname.dc_unc);
 526         BAIL_ON_PTR_ERROR(dc->dc_name, wbc_status);
 527
 528         *dc_info = dc;
 529         dc = NULL;
 530
 531 done:
 532         wbcFreeMemory(dc);
 533         return wbc_status;
 534 }
 535
 536 static void wbcDomainControllerInfoExDestructor(void *ptr)
 537 {
 538         struct wbcDomainControllerInfoEx *i =
 539                 (struct wbcDomainControllerInfoEx *)ptr;
 540         free((char *)(i->dc_unc));
 541         free((char *)(i->dc_address));
 542         free((char *)(i->domain_guid));
 543         free((char *)(i->domain_name));
 544         free((char *)(i->forest_name));
 545         free((char *)(i->dc_site_name));
 546         free((char *)(i->client_site_name));
 547 }
 548
 549 static wbcErr wbc_create_domain_controller_info_ex(const struct winbindd_response *resp,
 550                                                    struct wbcDomainControllerInfoEx **_i)
 551 {
 552         wbcErr wbc_status = WBC_ERR_SUCCESS;
 553         struct wbcDomainControllerInfoEx *i;
 554         struct wbcGuid guid;
 555
 556         i = (struct wbcDomainControllerInfoEx *)wbcAllocateMemory(
 557                 sizeof(struct wbcDomainControllerInfoEx), 1,
 558                 wbcDomainControllerInfoExDestructor);
 559         BAIL_ON_PTR_ERROR(i, wbc_status);
 560
 561         i->dc_unc = strdup(resp->data.dsgetdcname.dc_unc);
 562         BAIL_ON_PTR_ERROR(i->dc_unc, wbc_status);
 563
 564         i->dc_address = strdup(resp->data.dsgetdcname.dc_address);
 565         BAIL_ON_PTR_ERROR(i->dc_address, wbc_status);
 566
 567         i->dc_address_type = resp->data.dsgetdcname.dc_address_type;
 568
 569         wbc_status = wbcStringToGuid(resp->data.dsgetdcname.domain_guid, &guid);
 570         if (WBC_ERROR_IS_OK(wbc_status)) {
 571                 i->domain_guid = (struct wbcGuid *)malloc(
 572                         sizeof(struct wbcGuid));
 573                 BAIL_ON_PTR_ERROR(i->domain_guid, wbc_status);
 574
 575                 *i->domain_guid = guid;
 576         }
 577
 578         i->domain_name = strdup(resp->data.dsgetdcname.domain_name);
 579         BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
 580
 581         if (resp->data.dsgetdcname.forest_name[0] != '\0') {
 582                 i->forest_name = strdup(resp->data.dsgetdcname.forest_name);
 583                 BAIL_ON_PTR_ERROR(i->forest_name, wbc_status);
 584         }
 585
 586         i->dc_flags = resp->data.dsgetdcname.dc_flags;
 587
 588         if (resp->data.dsgetdcname.dc_site_name[0] != '\0') {
 589                 i->dc_site_name = strdup(resp->data.dsgetdcname.dc_site_name);
 590                 BAIL_ON_PTR_ERROR(i->dc_site_name, wbc_status);
 591         }
 592
 593         if (resp->data.dsgetdcname.client_site_name[0] != '\0') {
 594                 i->client_site_name = strdup(
 595                         resp->data.dsgetdcname.client_site_name);
 596                 BAIL_ON_PTR_ERROR(i->client_site_name, wbc_status);
 597         }
 598
 599         *_i = i;
 600         i = NULL;
 601
 602 done:
 603         if (i != NULL) {
 604                 wbcFreeMemory(i);
 605         }
 606         return wbc_status;
 607 }
 608
 609 /* Get extended domain controller information */
 610 wbcErr wbcLookupDomainControllerEx(const char *domain,
 611                                    struct wbcGuid *guid,
 612                                    const char *site,
 613                                    uint32_t flags,
 614                                    struct wbcDomainControllerInfoEx **dc_info)
 615 {
 616         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 617         struct winbindd_request request;
 618         struct winbindd_response response;
 619
 620         /* validate input params */
 621
 622         if (!domain || !dc_info) {
 623                 wbc_status = WBC_ERR_INVALID_PARAM;
 624                 BAIL_ON_WBC_ERROR(wbc_status);
 625         }
 626
 627         ZERO_STRUCT(request);
 628         ZERO_STRUCT(response);
 629
 630         request.data.dsgetdcname.flags = flags;
 631
 632         strncpy(request.data.dsgetdcname.domain_name, domain,
 633                 sizeof(request.data.dsgetdcname.domain_name)-1);
 634
 635         if (site) {
 636                 strncpy(request.data.dsgetdcname.site_name, site,
 637                         sizeof(request.data.dsgetdcname.site_name)-1);
 638         }
 639
 640         if (guid) {
 641                 char *str = NULL;
 642
 643                 wbc_status = wbcGuidToString(guid, &str);
 644                 BAIL_ON_WBC_ERROR(wbc_status);
 645
 646                 strncpy(request.data.dsgetdcname.domain_guid, str,
 647                         sizeof(request.data.dsgetdcname.domain_guid)-1);
 648
 649                 wbcFreeMemory(str);
 650         }
 651
 652         /* Send request */
 653
 654         wbc_status = wbcRequestResponse(WINBINDD_DSGETDCNAME,
 655                                         &request,
 656                                         &response);
 657         BAIL_ON_WBC_ERROR(wbc_status);
 658
 659         if (dc_info) {
 660                 wbc_status = wbc_create_domain_controller_info_ex(&response,
 661                                                                   dc_info);
 662                 BAIL_ON_WBC_ERROR(wbc_status);
 663         }
 664
 665         wbc_status = WBC_ERR_SUCCESS;
 666 done:
 667         return wbc_status;
 668 }
 669
 670 static void wbcNamedBlobDestructor(void *ptr)
 671 {
 672         struct wbcNamedBlob *b = (struct wbcNamedBlob *)ptr;
 673
 674         while (b->name != NULL) {
 675                 free((char *)(b->name));
 676                 free(b->blob.data);
 677                 b += 1;
 678         }
 679 }
 680
 681 /* Initialize a named blob and add to list of blobs */
 682 wbcErr wbcAddNamedBlob(size_t *num_blobs,
 683                        struct wbcNamedBlob **pblobs,
 684                        const char *name,
 685                        uint32_t flags,
 686                        uint8_t *data,
 687                        size_t length)
 688 {
 689         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 690         struct wbcNamedBlob *blobs, *blob;
 691
 692         if (name == NULL) {
 693                 return WBC_ERR_INVALID_PARAM;
 694         }
 695
 696         /*
 697          * Overallocate the b->name==NULL terminator for
 698          * wbcNamedBlobDestructor
 699          */
 700         blobs = (struct wbcNamedBlob *)wbcAllocateMemory(
 701                 sizeof(struct wbcNamedBlob), *num_blobs + 2,
 702                 wbcNamedBlobDestructor);
 703
 704         if (*pblobs != NULL) {
 705                 struct wbcNamedBlob *old = *pblobs;
 706                 memcpy(blobs, old, sizeof(struct wbcNamedBlob) * (*num_blobs));
 707                 if (*num_blobs != 0) {
 708                         /* end indicator for wbcNamedBlobDestructor */
 709                         old[0].name = NULL;
 710                 }
 711                 wbcFreeMemory(old);
 712         }
 713         *pblobs = blobs;
 714
 715         blob = &blobs[*num_blobs];
 716
 717         blob->name = strdup(name);
 718         BAIL_ON_PTR_ERROR(blob->name, wbc_status);
 719         blob->flags = flags;
 720
 721         blob->blob.length = length;
 722         blob->blob.data = (uint8_t *)malloc(length);
 723         BAIL_ON_PTR_ERROR(blob->blob.data, wbc_status);
 724         memcpy(blob->blob.data, data, length);
 725
 726         *num_blobs += 1;
 727         *pblobs = blobs;
 728         blobs = NULL;
 729
 730         wbc_status = WBC_ERR_SUCCESS;
 731 done:
 732         wbcFreeMemory(blobs);
 733         return wbc_status;
 734 }