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