nsswitch/libwbclient/wbc_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind client API
   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
  28
  29
  30 /** @brief Ping winbindd to see if the daemon is running
  31  *
  32  * @return #wbcErr
  33  **/
  34
  35 wbcErr wbcPing(void)
  36 {
  37         struct winbindd_request request;
  38         struct winbindd_response response;
  39
  40         /* Initialize request */
  41
  42         ZERO_STRUCT(request);
  43         ZERO_STRUCT(response);
  44
  45         return wbcRequestResponse(WINBINDD_PING, &request, &response);
  46 }
  47
  48 wbcErr wbcInterfaceDetails(struct wbcInterfaceDetails **_details)
  49 {
  50         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  51         struct wbcInterfaceDetails *info;
  52         struct wbcDomainInfo *domain = NULL;
  53         struct winbindd_request request;
  54         struct winbindd_response response;
  55
  56         /* Initialize request */
  57
  58         ZERO_STRUCT(request);
  59         ZERO_STRUCT(response);
  60
  61         info = talloc(NULL, struct wbcInterfaceDetails);
  62         BAIL_ON_PTR_ERROR(info, wbc_status);
  63
  64         /* first the interface version */
  65         wbc_status = wbcRequestResponse(WINBINDD_INTERFACE_VERSION, NULL, &response);
  66         BAIL_ON_WBC_ERROR(wbc_status);
  67         info->interface_version = response.data.interface_version;
  68
  69         /* then the samba version and the winbind separator */
  70         wbc_status = wbcRequestResponse(WINBINDD_INFO, NULL, &response);
  71         BAIL_ON_WBC_ERROR(wbc_status);
  72
  73         info->winbind_version = talloc_strdup(info,
  74                                               response.data.info.samba_version);
  75         BAIL_ON_PTR_ERROR(info->winbind_version, wbc_status);
  76         info->winbind_separator = response.data.info.winbind_separator;
  77
  78         /* then the local netbios name */
  79         wbc_status = wbcRequestResponse(WINBINDD_NETBIOS_NAME, NULL, &response);
  80         BAIL_ON_WBC_ERROR(wbc_status);
  81
  82         info->netbios_name = talloc_strdup(info,
  83                                            response.data.netbios_name);
  84         BAIL_ON_PTR_ERROR(info->netbios_name, wbc_status);
  85
  86         /* then the local workgroup name */
  87         wbc_status = wbcRequestResponse(WINBINDD_DOMAIN_NAME, NULL, &response);
  88         BAIL_ON_WBC_ERROR(wbc_status);
  89
  90         info->netbios_domain = talloc_strdup(info,
  91                                         response.data.domain_name);
  92         BAIL_ON_PTR_ERROR(info->netbios_domain, wbc_status);
  93
  94         wbc_status = wbcDomainInfo(info->netbios_domain, &domain);
  95         if (wbc_status == WBC_ERR_DOMAIN_NOT_FOUND) {
  96                 /* maybe it's a standalone server */
  97                 domain = NULL;
  98                 wbc_status = WBC_ERR_SUCCESS;
  99         } else {
 100                 BAIL_ON_WBC_ERROR(wbc_status);
 101         }
 102
 103         if (domain) {
 104                 info->dns_domain = talloc_strdup(info,
 105                                                  domain->dns_name);
 106                 wbcFreeMemory(domain);
 107                 BAIL_ON_PTR_ERROR(info->dns_domain, wbc_status);
 108         } else {
 109                 info->dns_domain = NULL;
 110         }
 111
 112         *_details = info;
 113         info = NULL;
 114
 115         wbc_status = WBC_ERR_SUCCESS;
 116
 117 done:
 118         talloc_free(info);
 119         return wbc_status;
 120 }
 121
 122
 123 /* Lookup the current status of a trusted domain */
 124 wbcErr wbcDomainInfo(const char *domain, struct wbcDomainInfo **dinfo)
 125 {
 126         struct winbindd_request request;
 127         struct winbindd_response response;
 128         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 129         struct wbcDomainInfo *info = NULL;
 130
 131         if (!domain || !dinfo) {
 132                 wbc_status = WBC_ERR_INVALID_PARAM;
 133                 BAIL_ON_WBC_ERROR(wbc_status);
 134         }
 135
 136         /* Initialize request */
 137
 138         ZERO_STRUCT(request);
 139         ZERO_STRUCT(response);
 140
 141         strncpy(request.domain_name, domain,
 142                 sizeof(request.domain_name)-1);
 143
 144         wbc_status = wbcRequestResponse(WINBINDD_DOMAIN_INFO,
 145                                         &request,
 146                                         &response);
 147         BAIL_ON_WBC_ERROR(wbc_status);
 148
 149         info = talloc(NULL, struct wbcDomainInfo);
 150         BAIL_ON_PTR_ERROR(info, wbc_status);
 151
 152         info->short_name = talloc_strdup(info,
 153                                          response.data.domain_info.name);
 154         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 155
 156         info->dns_name = talloc_strdup(info,
 157                                        response.data.domain_info.alt_name);
 158         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 159
 160         wbc_status = wbcStringToSid(response.data.domain_info.sid,
 161                                     &info->sid);
 162         BAIL_ON_WBC_ERROR(wbc_status);
 163
 164         if (response.data.domain_info.native_mode)
 165                 info->domain_flags |= WBC_DOMINFO_DOMAIN_NATIVE;
 166         if (response.data.domain_info.active_directory)
 167                 info->domain_flags |= WBC_DOMINFO_DOMAIN_AD;
 168         if (response.data.domain_info.primary)
 169                 info->domain_flags |= WBC_DOMINFO_DOMAIN_PRIMARY;
 170
 171         *dinfo = info;
 172
 173         wbc_status = WBC_ERR_SUCCESS;
 174
 175  done:
 176         if (!WBC_ERROR_IS_OK(wbc_status)) {
 177                 talloc_free(info);
 178         }
 179
 180         return wbc_status;
 181 }
 182
 183
 184 /* Resolve a NetbiosName via WINS */
 185 wbcErr wbcResolveWinsByName(const char *name, char **ip)
 186 {
 187         struct winbindd_request request;
 188         struct winbindd_response response;
 189         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 190         char *ipaddr;
 191
 192         ZERO_STRUCT(request);
 193         ZERO_STRUCT(response);
 194
 195         /* Send request */
 196
 197         strncpy(request.data.winsreq, name,
 198                 sizeof(request.data.winsreq)-1);
 199
 200         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYNAME,
 201                                         &request,
 202                                         &response);
 203         BAIL_ON_WBC_ERROR(wbc_status);
 204
 205         /* Display response */
 206
 207         ipaddr = talloc_strdup(NULL, response.data.winsresp);
 208         BAIL_ON_PTR_ERROR(ipaddr, wbc_status);
 209
 210         *ip = ipaddr;
 211         wbc_status = WBC_ERR_SUCCESS;
 212
 213  done:
 214         return wbc_status;
 215 }
 216
 217 /* Resolve an IP address via WINS into a NetbiosName */
 218 wbcErr wbcResolveWinsByIP(const char *ip, char **name)
 219 {
 220         struct winbindd_request request;
 221         struct winbindd_response response;
 222         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 223         char *name_str;
 224
 225         ZERO_STRUCT(request);
 226         ZERO_STRUCT(response);
 227
 228         /* Send request */
 229
 230         strncpy(request.data.winsreq, ip,
 231                 sizeof(request.data.winsreq)-1);
 232
 233         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYIP,
 234                                         &request,
 235                                         &response);
 236         BAIL_ON_WBC_ERROR(wbc_status);
 237
 238         /* Display response */
 239
 240         name_str = talloc_strdup(NULL, response.data.winsresp);
 241         BAIL_ON_PTR_ERROR(name_str, wbc_status);
 242
 243         *name = name_str;
 244         wbc_status = WBC_ERR_SUCCESS;
 245
 246  done:
 247         return wbc_status;
 248 }
 249
 250 /**
 251  */
 252
 253 static wbcErr process_domain_info_string(TALLOC_CTX *ctx,
 254                                          struct wbcDomainInfo *info,
 255                                          char *info_string)
 256 {
 257         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 258         char *r = NULL;
 259         char *s = NULL;
 260
 261         if (!info || !info_string) {
 262                 wbc_status = WBC_ERR_INVALID_PARAM;
 263                 BAIL_ON_WBC_ERROR(wbc_status);
 264         }
 265
 266         ZERO_STRUCTP(info);
 267
 268         r = info_string;
 269
 270         /* Short Name */
 271         if ((s = strchr(r, '\\')) == NULL) {
 272                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 273                 BAIL_ON_WBC_ERROR(wbc_status);
 274         }
 275         *s = '\0';
 276         s++;
 277
 278         info->short_name = talloc_strdup(ctx, r);
 279         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 280
 281
 282         /* DNS Name */
 283         r = s;
 284         if ((s = strchr(r, '\\')) == NULL) {
 285                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 286                 BAIL_ON_WBC_ERROR(wbc_status);
 287         }
 288         *s = '\0';
 289         s++;
 290
 291         info->dns_name = talloc_strdup(ctx, r);
 292         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 293
 294         /* SID */
 295         r = s;
 296         if ((s = strchr(r, '\\')) == NULL) {
 297                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 298                 BAIL_ON_WBC_ERROR(wbc_status);
 299         }
 300         *s = '\0';
 301         s++;
 302
 303         wbc_status = wbcStringToSid(r, &info->sid);
 304         BAIL_ON_WBC_ERROR(wbc_status);
 305
 306         /* Trust type */
 307         r = s;
 308         if ((s = strchr(r, '\\')) == NULL) {
 309                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 310                 BAIL_ON_WBC_ERROR(wbc_status);
 311         }
 312         *s = '\0';
 313         s++;
 314
 315         if (strcmp(r, "None") == 0) {
 316                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_NONE;
 317         } else if (strcmp(r, "External") == 0) {
 318                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_EXTERNAL;
 319         } else if (strcmp(r, "Forest") == 0) {
 320                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_FOREST;
 321         } else if (strcmp(r, "In Forest") == 0) {
 322                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_IN_FOREST;
 323         } else {
 324                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 325                 BAIL_ON_WBC_ERROR(wbc_status);
 326         }
 327
 328         /* Transitive */
 329         r = s;
 330         if ((s = strchr(r, '\\')) == NULL) {
 331                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 332                 BAIL_ON_WBC_ERROR(wbc_status);
 333         }
 334         *s = '\0';
 335         s++;
 336
 337         if (strcmp(r, "Yes") == 0) {
 338                 info->trust_flags |= WBC_DOMINFO_TRUST_TRANSITIVE;
 339         }
 340
 341         /* Incoming */
 342         r = s;
 343         if ((s = strchr(r, '\\')) == NULL) {
 344                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 345                 BAIL_ON_WBC_ERROR(wbc_status);
 346         }
 347         *s = '\0';
 348         s++;
 349
 350         if (strcmp(r, "Yes") == 0) {
 351                 info->trust_flags |= WBC_DOMINFO_TRUST_INCOMING;
 352         }
 353
 354         /* Outgoing */
 355         r = s;
 356         if ((s = strchr(r, '\\')) == NULL) {
 357                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 358                 BAIL_ON_WBC_ERROR(wbc_status);
 359         }
 360         *s = '\0';
 361         s++;
 362
 363         if (strcmp(r, "Yes") == 0) {
 364                 info->trust_flags |= WBC_DOMINFO_TRUST_OUTGOING;
 365         }
 366
 367         /* Online/Offline status */
 368
 369         r = s;
 370         if (r == NULL) {
 371                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 372                 BAIL_ON_WBC_ERROR(wbc_status);
 373         }
 374         if ( strcmp(r, "Offline") == 0) {
 375                 info->domain_flags |= WBC_DOMINFO_DOMAIN_OFFLINE;
 376         }
 377
 378         wbc_status = WBC_ERR_SUCCESS;
 379
 380  done:
 381         return wbc_status;
 382 }
 383
 384 /* Enumerate the domain trusts known by Winbind */
 385 wbcErr wbcListTrusts(struct wbcDomainInfo **domains, size_t *num_domains)
 386 {
 387         struct winbindd_response response;
 388         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 389         char *p = NULL;
 390         char *q = NULL;
 391         char *extra_data = NULL;
 392         int count = 0;
 393         struct wbcDomainInfo *d_list = NULL;
 394         int i = 0;
 395
 396         *domains = NULL;
 397         *num_domains = 0;
 398
 399         ZERO_STRUCT(response);
 400
 401         /* Send request */
 402
 403         wbc_status = wbcRequestResponse(WINBINDD_LIST_TRUSTDOM,
 404                                         NULL,
 405                                         &response);
 406         BAIL_ON_WBC_ERROR(wbc_status);
 407
 408         /* Decode the response */
 409
 410         p = (char *)response.extra_data.data;
 411
 412         if ((p == NULL) || (strlen(p) == 0)) {
 413                 /* We should always at least get back our
 414                    own SAM domain */
 415
 416                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
 417                 BAIL_ON_WBC_ERROR(wbc_status);
 418         }
 419
 420         /* Count number of domains */
 421
 422         count = 0;
 423         while (p) {
 424                 count++;
 425
 426                 if ((q = strchr(p, '\n')) != NULL)
 427                         q++;
 428                 p = q;
 429         }
 430
 431         d_list = talloc_array(NULL, struct wbcDomainInfo, count);
 432         BAIL_ON_PTR_ERROR(d_list, wbc_status);
 433
 434         extra_data = strdup((char*)response.extra_data.data);
 435         BAIL_ON_PTR_ERROR(extra_data, wbc_status);
 436
 437         p = extra_data;
 438
 439         /* Outer loop processes the list of domain information */
 440
 441         for (i=0; i<count && p; i++) {
 442                 char *next = strchr(p, '\n');
 443
 444                 if (next) {
 445                         *next = '\0';
 446                         next++;
 447                 }
 448
 449                 wbc_status = process_domain_info_string(d_list, &d_list[i], p);
 450                 BAIL_ON_WBC_ERROR(wbc_status);
 451
 452                 p = next;
 453         }
 454
 455         *domains = d_list;
 456         *num_domains = i;
 457
 458  done:
 459         if (!WBC_ERROR_IS_OK(wbc_status)) {
 460                 if (d_list)
 461                         talloc_free(d_list);
 462                 if (extra_data)
 463                         free(extra_data);
 464         }
 465
 466         return wbc_status;
 467 }
 468
 469 /* Enumerate the domain trusts known by Winbind */
 470 wbcErr wbcLookupDomainController(const char *domain,
 471                                  uint32_t flags,
 472                                 struct wbcDomainControllerInfo **dc_info)
 473 {
 474         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 475         struct winbindd_request request;
 476         struct winbindd_response response;
 477         struct wbcDomainControllerInfo *dc = NULL;
 478
 479         /* validate input params */
 480
 481         if (!domain || !dc_info) {
 482                 wbc_status = WBC_ERR_INVALID_PARAM;
 483                 BAIL_ON_WBC_ERROR(wbc_status);
 484         }
 485
 486         ZERO_STRUCT(request);
 487         ZERO_STRUCT(response);
 488
 489         strncpy(request.domain_name, domain, sizeof(request.domain_name)-1);
 490
 491         request.flags = flags;
 492
 493         dc = talloc(NULL, struct wbcDomainControllerInfo);
 494         BAIL_ON_PTR_ERROR(dc, wbc_status);
 495
 496         /* Send request */
 497
 498         wbc_status = wbcRequestResponse(WINBINDD_DSGETDCNAME,
 499                                         &request,
 500                                         &response);
 501         BAIL_ON_WBC_ERROR(wbc_status);
 502
 503         dc->dc_name = talloc_strdup(dc, response.data.dc_name);
 504         BAIL_ON_PTR_ERROR(dc->dc_name, wbc_status);
 505
 506         *dc_info = dc;
 507
 508 done:
 509         if (!WBC_ERROR_IS_OK(wbc_status)) {
 510                 talloc_free(dc);
 511         }
 512
 513         return wbc_status;
 514 }
 515
 516 static wbcErr wbc_create_domain_controller_info_ex(TALLOC_CTX *mem_ctx,
 517                                                    const struct winbindd_response *resp,
 518                                                    struct wbcDomainControllerInfoEx **_i)
 519 {
 520         wbcErr wbc_status = WBC_ERR_SUCCESS;
 521         struct wbcDomainControllerInfoEx *i;
 522         struct wbcGuid guid;
 523
 524         i = talloc(mem_ctx, struct wbcDomainControllerInfoEx);
 525         BAIL_ON_PTR_ERROR(i, wbc_status);
 526
 527         i->dc_unc = talloc_strdup(i, resp->data.dsgetdcname.dc_unc);
 528         BAIL_ON_PTR_ERROR(i->dc_unc, wbc_status);
 529
 530         i->dc_address = talloc_strdup(i, resp->data.dsgetdcname.dc_address);
 531         BAIL_ON_PTR_ERROR(i->dc_address, wbc_status);
 532
 533         i->dc_address_type = resp->data.dsgetdcname.dc_address_type;
 534
 535         wbc_status = wbcStringToGuid(resp->data.dsgetdcname.domain_guid, &guid);
 536         if (WBC_ERROR_IS_OK(wbc_status)) {
 537                 i->domain_guid = talloc(i, struct wbcGuid);
 538                 BAIL_ON_PTR_ERROR(i->domain_guid, wbc_status);
 539
 540                 *i->domain_guid = guid;
 541         } else {
 542                 i->domain_guid = NULL;
 543         }
 544
 545         i->domain_name = talloc_strdup(i, resp->data.dsgetdcname.domain_name);
 546         BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
 547
 548         if (resp->data.dsgetdcname.forest_name[0] != '\0') {
 549                 i->forest_name = talloc_strdup(i,
 550                         resp->data.dsgetdcname.forest_name);
 551                 BAIL_ON_PTR_ERROR(i->forest_name, wbc_status);
 552         } else {
 553                 i->forest_name = NULL;
 554         }
 555
 556         i->dc_flags = resp->data.dsgetdcname.dc_flags;
 557
 558         if (resp->data.dsgetdcname.dc_site_name[0] != '\0') {
 559                 i->dc_site_name = talloc_strdup(i,
 560                         resp->data.dsgetdcname.dc_site_name);
 561                 BAIL_ON_PTR_ERROR(i->dc_site_name, wbc_status);
 562         } else {
 563                 i->dc_site_name = NULL;
 564         }
 565
 566         if (resp->data.dsgetdcname.client_site_name[0] != '\0') {
 567                 i->client_site_name = talloc_strdup(i,
 568                         resp->data.dsgetdcname.client_site_name);
 569                 BAIL_ON_PTR_ERROR(i->client_site_name, wbc_status);
 570         } else {
 571                 i->client_site_name = NULL;
 572         }
 573
 574         *_i = i;
 575         i = NULL;
 576
 577 done:
 578         talloc_free(i);
 579         return wbc_status;
 580 }
 581
 582 /* Get extended domain controller information */
 583 wbcErr wbcLookupDomainControllerEx(const char *domain,
 584                                    struct wbcGuid *guid,
 585                                    const char *site,
 586                                    uint32_t flags,
 587                                    struct wbcDomainControllerInfoEx **dc_info)
 588 {
 589         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 590         struct winbindd_request request;
 591         struct winbindd_response response;
 592
 593         /* validate input params */
 594
 595         if (!domain || !dc_info) {
 596                 wbc_status = WBC_ERR_INVALID_PARAM;
 597                 BAIL_ON_WBC_ERROR(wbc_status);
 598         }
 599
 600         ZERO_STRUCT(request);
 601         ZERO_STRUCT(response);
 602
 603         request.data.dsgetdcname.flags = flags;
 604
 605         strncpy(request.data.dsgetdcname.domain_name, domain,
 606                 sizeof(request.data.dsgetdcname.domain_name)-1);
 607
 608         if (site) {
 609                 strncpy(request.data.dsgetdcname.site_name, site,
 610                         sizeof(request.data.dsgetdcname.site_name)-1);
 611         }
 612
 613         if (guid) {
 614                 char *str = NULL;
 615
 616                 wbc_status = wbcGuidToString(guid, &str);
 617                 BAIL_ON_WBC_ERROR(wbc_status);
 618
 619                 strncpy(request.data.dsgetdcname.domain_guid, str,
 620                         sizeof(request.data.dsgetdcname.domain_guid)-1);
 621
 622                 wbcFreeMemory(str);
 623         }
 624
 625         /* Send request */
 626
 627         wbc_status = wbcRequestResponse(WINBINDD_DSGETDCNAME,
 628                                         &request,
 629                                         &response);
 630         BAIL_ON_WBC_ERROR(wbc_status);
 631
 632         if (dc_info) {
 633                 wbc_status = wbc_create_domain_controller_info_ex(NULL,
 634                                                                   &response,
 635                                                                   dc_info);
 636                 BAIL_ON_WBC_ERROR(wbc_status);
 637         }
 638
 639         wbc_status = WBC_ERR_SUCCESS;
 640 done:
 641         return wbc_status;
 642 }
 643
 644 /* Initialize a named blob and add to list of blobs */
 645 wbcErr wbcAddNamedBlob(size_t *num_blobs,
 646                        struct wbcNamedBlob **blobs,
 647                        const char *name,
 648                        uint32_t flags,
 649                        uint8_t *data,
 650                        size_t length)
 651 {
 652         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 653         struct wbcNamedBlob blob;
 654
 655         *blobs = talloc_realloc(NULL, *blobs, struct wbcNamedBlob,
 656                                 *(num_blobs)+1);
 657         BAIL_ON_PTR_ERROR(*blobs, wbc_status);
 658
 659         blob.name               = talloc_strdup(*blobs, name);
 660         BAIL_ON_PTR_ERROR(blob.name, wbc_status);
 661         blob.flags              = flags;
 662         blob.blob.length        = length;
 663         blob.blob.data          = (uint8_t *)talloc_memdup(*blobs, data, length);
 664         BAIL_ON_PTR_ERROR(blob.blob.data, wbc_status);
 665
 666         (*(blobs))[*num_blobs] = blob;
 667         *(num_blobs) += 1;
 668
 669         wbc_status = WBC_ERR_SUCCESS;
 670 done:
 671         if (!WBC_ERROR_IS_OK(wbc_status) && blobs) {
 672                 wbcFreeMemory(*blobs);
 673         }
 674         return wbc_status;
 675 }