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  * @param *ctx       wbclient Context
  32  *
  33  * @return #wbcErr
  34  **/
  35 wbcErr wbcCtxPing(struct wbcContext *ctx)
  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(ctx, WINBINDD_PING, &request, &response);
  46 }
  47
  48 wbcErr wbcPing(void)
  49 {
  50         return wbcCtxPing(NULL);
  51 }
  52
  53 static void wbcInterfaceDetailsDestructor(void *ptr)
  54 {
  55         struct wbcInterfaceDetails *i = (struct wbcInterfaceDetails *)ptr;
  56         free(i->winbind_version);
  57         free(i->netbios_name);
  58         free(i->netbios_domain);
  59         free(i->dns_domain);
  60 }
  61
  62 /**
  63  * @brief Query useful information about the winbind service
  64  *
  65  * @param *_details     pointer to hold the struct wbcInterfaceDetails
  66  *
  67  * @return #wbcErr
  68  */
  69
  70 wbcErr wbcCtxInterfaceDetails(struct wbcContext *ctx,
  71                               struct wbcInterfaceDetails **_details)
  72 {
  73         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  74         struct wbcInterfaceDetails *info;
  75         struct wbcDomainInfo *domain = NULL;
  76         struct winbindd_request request;
  77         struct winbindd_response response;
  78
  79         /* Initialize request */
  80
  81         ZERO_STRUCT(request);
  82         ZERO_STRUCT(response);
  83
  84         info = (struct wbcInterfaceDetails *)wbcAllocateMemory(
  85                 1, sizeof(struct wbcInterfaceDetails),
  86                 wbcInterfaceDetailsDestructor);
  87         BAIL_ON_PTR_ERROR(info, wbc_status);
  88
  89         /* first the interface version */
  90         wbc_status = wbcRequestResponse(ctx, WINBINDD_INTERFACE_VERSION,
  91                                         NULL, &response);
  92         BAIL_ON_WBC_ERROR(wbc_status);
  93         info->interface_version = response.data.interface_version;
  94
  95         /* then the samba version and the winbind separator */
  96         wbc_status = wbcRequestResponse(ctx, WINBINDD_INFO, NULL, &response);
  97         BAIL_ON_WBC_ERROR(wbc_status);
  98
  99         info->winbind_version = strdup(response.data.info.samba_version);
 100         BAIL_ON_PTR_ERROR(info->winbind_version, wbc_status);
 101         info->winbind_separator = response.data.info.winbind_separator;
 102
 103         /* then the local netbios name */
 104         wbc_status = wbcRequestResponse(ctx, WINBINDD_NETBIOS_NAME,
 105                                         NULL, &response);
 106         BAIL_ON_WBC_ERROR(wbc_status);
 107
 108         info->netbios_name = strdup(response.data.netbios_name);
 109         BAIL_ON_PTR_ERROR(info->netbios_name, wbc_status);
 110
 111         /* then the local workgroup name */
 112         wbc_status = wbcRequestResponse(ctx, WINBINDD_DOMAIN_NAME,
 113                                         NULL, &response);
 114         BAIL_ON_WBC_ERROR(wbc_status);
 115
 116         info->netbios_domain = strdup(response.data.domain_name);
 117         BAIL_ON_PTR_ERROR(info->netbios_domain, wbc_status);
 118
 119         wbc_status = wbcCtxDomainInfo(ctx, info->netbios_domain, &domain);
 120         if (wbc_status == WBC_ERR_DOMAIN_NOT_FOUND) {
 121                 /* maybe it's a standalone server */
 122                 domain = NULL;
 123                 wbc_status = WBC_ERR_SUCCESS;
 124         } else {
 125                 BAIL_ON_WBC_ERROR(wbc_status);
 126         }
 127
 128         if (domain) {
 129                 info->dns_domain = strdup(domain->dns_name);
 130                 wbcFreeMemory(domain);
 131                 BAIL_ON_PTR_ERROR(info->dns_domain, wbc_status);
 132         } else {
 133                 info->dns_domain = NULL;
 134         }
 135
 136         *_details = info;
 137         info = NULL;
 138
 139         wbc_status = WBC_ERR_SUCCESS;
 140
 141 done:
 142         wbcFreeMemory(info);
 143         return wbc_status;
 144 }
 145
 146 wbcErr wbcInterfaceDetails(struct wbcInterfaceDetails **_details)
 147 {
 148         return wbcCtxInterfaceDetails(NULL, _details);
 149 }
 150
 151 static void wbcDomainInfoDestructor(void *ptr)
 152 {
 153         struct wbcDomainInfo *i = (struct wbcDomainInfo *)ptr;
 154         free(i->short_name);
 155         free(i->dns_name);
 156 }
 157
 158 /** @brief Lookup the current status of a trusted domain, sync wrapper
 159  *
 160  * @param domain      Domain to query
 161  * @param *dinfo       Pointer to returned struct wbcDomainInfo
 162  *
 163  * @return #wbcErr
 164  */
 165
 166 wbcErr wbcCtxDomainInfo(struct wbcContext *ctx,
 167                         const char *domain,
 168                         struct wbcDomainInfo **dinfo)
 169 {
 170         struct winbindd_request request;
 171         struct winbindd_response response;
 172         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 173         struct wbcDomainInfo *info = NULL;
 174
 175         if (!domain || !dinfo) {
 176                 wbc_status = WBC_ERR_INVALID_PARAM;
 177                 BAIL_ON_WBC_ERROR(wbc_status);
 178         }
 179
 180         /* Initialize request */
 181
 182         ZERO_STRUCT(request);
 183         ZERO_STRUCT(response);
 184
 185         strncpy(request.domain_name, domain,
 186                 sizeof(request.domain_name)-1);
 187
 188         wbc_status = wbcRequestResponse(ctx, WINBINDD_DOMAIN_INFO,
 189                                         &request,
 190                                         &response);
 191         BAIL_ON_WBC_ERROR(wbc_status);
 192
 193         info = (struct wbcDomainInfo *)wbcAllocateMemory(
 194                 1, sizeof(struct wbcDomainInfo), wbcDomainInfoDestructor);
 195         BAIL_ON_PTR_ERROR(info, wbc_status);
 196
 197         info->short_name = strdup(response.data.domain_info.name);
 198         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 199
 200         info->dns_name = strdup(response.data.domain_info.alt_name);
 201         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 202
 203         wbc_status = wbcStringToSid(response.data.domain_info.sid,
 204                                     &info->sid);
 205         BAIL_ON_WBC_ERROR(wbc_status);
 206
 207         if (response.data.domain_info.native_mode)
 208                 info->domain_flags |= WBC_DOMINFO_DOMAIN_NATIVE;
 209         if (response.data.domain_info.active_directory)
 210                 info->domain_flags |= WBC_DOMINFO_DOMAIN_AD;
 211         if (response.data.domain_info.primary)
 212                 info->domain_flags |= WBC_DOMINFO_DOMAIN_PRIMARY;
 213
 214         *dinfo = info;
 215         info = NULL;
 216
 217         wbc_status = WBC_ERR_SUCCESS;
 218
 219  done:
 220         wbcFreeMemory(info);
 221         return wbc_status;
 222 }
 223
 224 wbcErr wbcDomainInfo(const char *domain, struct wbcDomainInfo **dinfo)
 225 {
 226         return wbcCtxDomainInfo(NULL, domain, dinfo);
 227 }
 228
 229 /* Get the list of current DCs */
 230 wbcErr wbcCtxDcInfo(struct wbcContext *ctx,
 231                     const char *domain, size_t *num_dcs,
 232                     const char ***dc_names, const char ***dc_ips)
 233 {
 234         struct winbindd_request request;
 235         struct winbindd_response response;
 236         const char **names = NULL;
 237         const char **ips = NULL;
 238         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 239         size_t extra_len;
 240         int i;
 241         char *p;
 242
 243         /* Initialise request */
 244
 245         ZERO_STRUCT(request);
 246         ZERO_STRUCT(response);
 247
 248         if (domain != NULL) {
 249                 strncpy(request.domain_name, domain,
 250                         sizeof(request.domain_name) - 1);
 251         }
 252
 253         wbc_status = wbcRequestResponse(ctx, WINBINDD_DC_INFO,
 254                                         &request, &response);
 255         BAIL_ON_WBC_ERROR(wbc_status);
 256
 257         names = wbcAllocateStringArray(response.data.num_entries);
 258         BAIL_ON_PTR_ERROR(names, wbc_status);
 259
 260         ips = wbcAllocateStringArray(response.data.num_entries);
 261         BAIL_ON_PTR_ERROR(ips, wbc_status);
 262
 263         wbc_status = WBC_ERR_INVALID_RESPONSE;
 264
 265         p = (char *)response.extra_data.data;
 266
 267         if (response.length < (sizeof(struct winbindd_response)+1)) {
 268                 goto done;
 269         }
 270
 271         extra_len = response.length - sizeof(struct winbindd_response);
 272
 273         if (p[extra_len-1] != '\0') {
 274                 goto done;
 275         }
 276
 277         for (i=0; i<response.data.num_entries; i++) {
 278                 char *q;
 279
 280                 q = strchr(p, '\n');
 281                 if (q == NULL) {
 282                         goto done;
 283                 }
 284                 names[i] = strndup(p, q-p);
 285                 BAIL_ON_PTR_ERROR(names[i], wbc_status);
 286                 p = q+1;
 287
 288                 q = strchr(p, '\n');
 289                 if (q == NULL) {
 290                         goto done;
 291                 }
 292                 ips[i] = strndup(p, q-p);
 293                 BAIL_ON_PTR_ERROR(ips[i], wbc_status);
 294                 p = q+1;
 295         }
 296         if (p[0] != '\0') {
 297                 goto done;
 298         }
 299
 300         wbc_status = WBC_ERR_SUCCESS;
 301 done:
 302         if (response.extra_data.data)
 303                 free(response.extra_data.data);
 304
 305         if (WBC_ERROR_IS_OK(wbc_status)) {
 306                 *num_dcs = response.data.num_entries;
 307                 *dc_names = names;
 308                 names = NULL;
 309                 *dc_ips = ips;
 310                 ips = NULL;
 311         }
 312         wbcFreeMemory(names);
 313         wbcFreeMemory(ips);
 314         return wbc_status;
 315 }
 316
 317 wbcErr wbcDcInfo(const char *domain, size_t *num_dcs,
 318                  const char ***dc_names, const char ***dc_ips)
 319 {
 320         return wbcCtxDcInfo(NULL, domain, num_dcs, dc_names, dc_ips);
 321 }
 322
 323 /* Resolve a NetbiosName via WINS */
 324 wbcErr wbcCtxResolveWinsByName(struct wbcContext *ctx,
 325                                const char *name, char **ip)
 326 {
 327         struct winbindd_request request;
 328         struct winbindd_response response;
 329         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 330         char *ipaddr;
 331
 332         ZERO_STRUCT(request);
 333         ZERO_STRUCT(response);
 334
 335         /* Send request */
 336
 337         strncpy(request.data.winsreq, name,
 338                 sizeof(request.data.winsreq)-1);
 339
 340         wbc_status = wbcRequestResponse(ctx, WINBINDD_WINS_BYNAME,
 341                                         &request,
 342                                         &response);
 343         BAIL_ON_WBC_ERROR(wbc_status);
 344
 345         /* Display response */
 346
 347         ipaddr = wbcStrDup(response.data.winsresp);
 348         BAIL_ON_PTR_ERROR(ipaddr, wbc_status);
 349
 350         *ip = ipaddr;
 351         wbc_status = WBC_ERR_SUCCESS;
 352
 353  done:
 354         return wbc_status;
 355 }
 356
 357 wbcErr wbcResolveWinsByName(const char *name, char **ip)
 358 {
 359         return wbcCtxResolveWinsByName(NULL, name, ip);
 360 }
 361
 362 /* Resolve an IP address via WINS into a NetbiosName */
 363 wbcErr wbcCtxResolveWinsByIP(struct wbcContext *ctx,
 364                              const char *ip, char **name)
 365 {
 366         struct winbindd_request request;
 367         struct winbindd_response response;
 368         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 369         char *name_str;
 370
 371         ZERO_STRUCT(request);
 372         ZERO_STRUCT(response);
 373
 374         /* Send request */
 375
 376         strncpy(request.data.winsreq, ip,
 377                 sizeof(request.data.winsreq)-1);
 378
 379         wbc_status = wbcRequestResponse(ctx, WINBINDD_WINS_BYIP,
 380                                         &request,
 381                                         &response);
 382         BAIL_ON_WBC_ERROR(wbc_status);
 383
 384         /* Display response */
 385
 386         name_str = wbcStrDup(response.data.winsresp);
 387         BAIL_ON_PTR_ERROR(name_str, wbc_status);
 388
 389         *name = name_str;
 390         wbc_status = WBC_ERR_SUCCESS;
 391
 392  done:
 393         return wbc_status;
 394 }
 395
 396 wbcErr wbcResolveWinsByIP(const char *ip, char **name)
 397 {
 398         return wbcCtxResolveWinsByIP(NULL, ip, name);
 399 }
 400
 401 /**
 402  */
 403
 404 static wbcErr process_domain_info_string(struct wbcDomainInfo *info,
 405                                          char *info_string)
 406 {
 407         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 408         char *r = NULL;
 409         char *s = NULL;
 410
 411         r = info_string;
 412
 413         /* Short Name */
 414         if ((s = strchr(r, '\\')) == NULL) {
 415                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 416                 BAIL_ON_WBC_ERROR(wbc_status);
 417         }
 418         *s = '\0';
 419         s++;
 420
 421         info->short_name = strdup(r);
 422         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 423
 424
 425         /* DNS Name */
 426         r = s;
 427         if ((s = strchr(r, '\\')) == NULL) {
 428                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 429                 BAIL_ON_WBC_ERROR(wbc_status);
 430         }
 431         *s = '\0';
 432         s++;
 433
 434         info->dns_name = strdup(r);
 435         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 436
 437         /* SID */
 438         r = s;
 439         if ((s = strchr(r, '\\')) == NULL) {
 440                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 441                 BAIL_ON_WBC_ERROR(wbc_status);
 442         }
 443         *s = '\0';
 444         s++;
 445
 446         wbc_status = wbcStringToSid(r, &info->sid);
 447         BAIL_ON_WBC_ERROR(wbc_status);
 448
 449         /* Trust type */
 450         r = s;
 451         if ((s = strchr(r, '\\')) == NULL) {
 452                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 453                 BAIL_ON_WBC_ERROR(wbc_status);
 454         }
 455         *s = '\0';
 456         s++;
 457
 458         if (strcmp(r, "None") == 0) {
 459                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_NONE;
 460         } else if (strcmp(r, "External") == 0) {
 461                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_EXTERNAL;
 462         } else if (strcmp(r, "Forest") == 0) {
 463                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_FOREST;
 464         } else if (strcmp(r, "In Forest") == 0) {
 465                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_IN_FOREST;
 466         } else {
 467                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 468                 BAIL_ON_WBC_ERROR(wbc_status);
 469         }
 470
 471         /* Transitive */
 472         r = s;
 473         if ((s = strchr(r, '\\')) == NULL) {
 474                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 475                 BAIL_ON_WBC_ERROR(wbc_status);
 476         }
 477         *s = '\0';
 478         s++;
 479
 480         if (strcmp(r, "Yes") == 0) {
 481                 info->trust_flags |= WBC_DOMINFO_TRUST_TRANSITIVE;
 482         }
 483
 484         /* Incoming */
 485         r = s;
 486         if ((s = strchr(r, '\\')) == NULL) {
 487                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 488                 BAIL_ON_WBC_ERROR(wbc_status);
 489         }
 490         *s = '\0';
 491         s++;
 492
 493         if (strcmp(r, "Yes") == 0) {
 494                 info->trust_flags |= WBC_DOMINFO_TRUST_INCOMING;
 495         }
 496
 497         /* Outgoing */
 498         r = s;
 499         if ((s = strchr(r, '\\')) == NULL) {
 500                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 501                 BAIL_ON_WBC_ERROR(wbc_status);
 502         }
 503         *s = '\0';
 504         s++;
 505
 506         if (strcmp(r, "Yes") == 0) {
 507                 info->trust_flags |= WBC_DOMINFO_TRUST_OUTGOING;
 508         }
 509
 510         /* Online/Offline status */
 511         r = s;
 512         if ( strcmp(r, "Offline") == 0) {
 513                 info->domain_flags |= WBC_DOMINFO_DOMAIN_OFFLINE;
 514         }
 515
 516         wbc_status = WBC_ERR_SUCCESS;
 517
 518  done:
 519         return wbc_status;
 520 }
 521
 522 static void wbcDomainInfoListDestructor(void *ptr)
 523 {
 524         struct wbcDomainInfo *i = (struct wbcDomainInfo *)ptr;
 525
 526         while (i->short_name != NULL) {
 527                 free(i->short_name);
 528                 free(i->dns_name);
 529                 i += 1;
 530         }
 531 }
 532
 533 /* Enumerate the domain trusts known by Winbind */
 534 wbcErr wbcCtxListTrusts(struct wbcContext *ctx,
 535                         struct wbcDomainInfo **domains, size_t *num_domains)
 536 {
 537         struct winbindd_response response;
 538         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 539         char *p = NULL;
 540         char *extra_data = NULL;
 541         struct wbcDomainInfo *d_list = NULL;
 542         int i = 0;
 543
 544         *domains = NULL;
 545         *num_domains = 0;
 546
 547         ZERO_STRUCT(response);
 548
 549         /* Send request */
 550
 551         wbc_status = wbcRequestResponse(ctx, WINBINDD_LIST_TRUSTDOM,
 552                                         NULL,
 553                                         &response);
 554         BAIL_ON_WBC_ERROR(wbc_status);
 555
 556         /* Decode the response */
 557
 558         p = (char *)response.extra_data.data;
 559
 560         if ((p == NULL) || (strlen(p) == 0)) {
 561                 /* We should always at least get back our
 562                    own SAM domain */
 563
 564                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
 565                 BAIL_ON_WBC_ERROR(wbc_status);
 566         }
 567
 568         d_list = (struct wbcDomainInfo *)wbcAllocateMemory(
 569                 response.data.num_entries + 1,sizeof(struct wbcDomainInfo),
 570                 wbcDomainInfoListDestructor);
 571         BAIL_ON_PTR_ERROR(d_list, wbc_status);
 572
 573         extra_data = strdup((char*)response.extra_data.data);
 574         BAIL_ON_PTR_ERROR(extra_data, wbc_status);
 575
 576         p = extra_data;
 577
 578         /* Outer loop processes the list of domain information */
 579
 580         for (i=0; i<response.data.num_entries && p; i++) {
 581                 char *next = strchr(p, '\n');
 582
 583                 if (next) {
 584                         *next = '\0';
 585                         next++;
 586                 }
 587
 588                 wbc_status = process_domain_info_string(&d_list[i], p);
 589                 BAIL_ON_WBC_ERROR(wbc_status);
 590
 591                 p = next;
 592         }
 593
 594         *domains = d_list;
 595         d_list = NULL;
 596         *num_domains = i;
 597
 598  done:
 599         winbindd_free_response(&response);
 600         wbcFreeMemory(d_list);
 601         free(extra_data);
 602         return wbc_status;
 603 }
 604
 605 wbcErr wbcListTrusts(struct wbcDomainInfo **domains, size_t *num_domains)
 606 {
 607         return wbcCtxListTrusts(NULL, domains, num_domains);
 608 }
 609
 610 static void wbcDomainControllerInfoDestructor(void *ptr)
 611 {
 612         struct wbcDomainControllerInfo *i =
 613                 (struct wbcDomainControllerInfo *)ptr;
 614         free(i->dc_name);
 615 }
 616
 617 /* Enumerate the domain trusts known by Winbind */
 618 wbcErr wbcCtxLookupDomainController(struct wbcContext *ctx,
 619                                     const char *domain, uint32_t flags,
 620                                     struct wbcDomainControllerInfo **dc_info)
 621 {
 622         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 623         struct winbindd_request request;
 624         struct winbindd_response response;
 625         struct wbcDomainControllerInfo *dc = NULL;
 626
 627         /* validate input params */
 628
 629         if (!domain || !dc_info) {
 630                 wbc_status = WBC_ERR_INVALID_PARAM;
 631                 BAIL_ON_WBC_ERROR(wbc_status);
 632         }
 633
 634         ZERO_STRUCT(request);
 635         ZERO_STRUCT(response);
 636
 637         strncpy(request.data.dsgetdcname.domain_name, domain,
 638                 sizeof(request.data.dsgetdcname.domain_name)-1);
 639
 640         request.flags = flags;
 641
 642         dc = (struct wbcDomainControllerInfo *)wbcAllocateMemory(
 643                  1, sizeof(struct wbcDomainControllerInfo),
 644                 wbcDomainControllerInfoDestructor);
 645         BAIL_ON_PTR_ERROR(dc, wbc_status);
 646
 647         /* Send request */
 648
 649         wbc_status = wbcRequestResponse(ctx, WINBINDD_DSGETDCNAME,
 650                                         &request,
 651                                         &response);
 652         BAIL_ON_WBC_ERROR(wbc_status);
 653
 654         dc->dc_name = strdup(response.data.dsgetdcname.dc_unc);
 655         BAIL_ON_PTR_ERROR(dc->dc_name, wbc_status);
 656
 657         *dc_info = dc;
 658         dc = NULL;
 659
 660 done:
 661         wbcFreeMemory(dc);
 662         return wbc_status;
 663 }
 664
 665 wbcErr wbcLookupDomainController(const char *domain, uint32_t flags,
 666                                  struct wbcDomainControllerInfo **dc_info)
 667 {
 668         return wbcCtxLookupDomainController(NULL, domain, flags, dc_info);
 669 }
 670
 671 static void wbcDomainControllerInfoExDestructor(void *ptr)
 672 {
 673         struct wbcDomainControllerInfoEx *i =
 674                 (struct wbcDomainControllerInfoEx *)ptr;
 675         free(discard_const_p(char, i->dc_unc));
 676         free(discard_const_p(char, i->dc_address));
 677         free(discard_const_p(char, i->domain_guid));
 678         free(discard_const_p(char, i->domain_name));
 679         free(discard_const_p(char, i->forest_name));
 680         free(discard_const_p(char, i->dc_site_name));
 681         free(discard_const_p(char, i->client_site_name));
 682 }
 683
 684 static wbcErr wbc_create_domain_controller_info_ex(const struct winbindd_response *resp,
 685                                                    struct wbcDomainControllerInfoEx **_i)
 686 {
 687         wbcErr wbc_status = WBC_ERR_SUCCESS;
 688         struct wbcDomainControllerInfoEx *i;
 689         struct wbcGuid guid;
 690
 691         i = (struct wbcDomainControllerInfoEx *)wbcAllocateMemory(
 692                 1, sizeof(struct wbcDomainControllerInfoEx),
 693                 wbcDomainControllerInfoExDestructor);
 694         BAIL_ON_PTR_ERROR(i, wbc_status);
 695
 696         i->dc_unc = strdup(resp->data.dsgetdcname.dc_unc);
 697         BAIL_ON_PTR_ERROR(i->dc_unc, wbc_status);
 698
 699         i->dc_address = strdup(resp->data.dsgetdcname.dc_address);
 700         BAIL_ON_PTR_ERROR(i->dc_address, wbc_status);
 701
 702         i->dc_address_type = resp->data.dsgetdcname.dc_address_type;
 703
 704         wbc_status = wbcStringToGuid(resp->data.dsgetdcname.domain_guid, &guid);
 705         if (WBC_ERROR_IS_OK(wbc_status)) {
 706                 i->domain_guid = (struct wbcGuid *)malloc(
 707                         sizeof(struct wbcGuid));
 708                 BAIL_ON_PTR_ERROR(i->domain_guid, wbc_status);
 709
 710                 *i->domain_guid = guid;
 711         }
 712
 713         i->domain_name = strdup(resp->data.dsgetdcname.domain_name);
 714         BAIL_ON_PTR_ERROR(i->domain_name, wbc_status);
 715
 716         if (resp->data.dsgetdcname.forest_name[0] != '\0') {
 717                 i->forest_name = strdup(resp->data.dsgetdcname.forest_name);
 718                 BAIL_ON_PTR_ERROR(i->forest_name, wbc_status);
 719         }
 720
 721         i->dc_flags = resp->data.dsgetdcname.dc_flags;
 722
 723         if (resp->data.dsgetdcname.dc_site_name[0] != '\0') {
 724                 i->dc_site_name = strdup(resp->data.dsgetdcname.dc_site_name);
 725                 BAIL_ON_PTR_ERROR(i->dc_site_name, wbc_status);
 726         }
 727
 728         if (resp->data.dsgetdcname.client_site_name[0] != '\0') {
 729                 i->client_site_name = strdup(
 730                         resp->data.dsgetdcname.client_site_name);
 731                 BAIL_ON_PTR_ERROR(i->client_site_name, wbc_status);
 732         }
 733
 734         *_i = i;
 735         i = NULL;
 736
 737 done:
 738         if (i != NULL) {
 739                 wbcFreeMemory(i);
 740         }
 741         return wbc_status;
 742 }
 743
 744 /* Get extended domain controller information */
 745 wbcErr wbcCtxLookupDomainControllerEx(struct wbcContext *ctx,
 746                                       const char *domain,
 747                                       struct wbcGuid *guid,
 748                                       const char *site,
 749                                       uint32_t flags,
 750                                       struct wbcDomainControllerInfoEx **dc_info)
 751 {
 752         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 753         struct winbindd_request request;
 754         struct winbindd_response response;
 755
 756         /* validate input params */
 757
 758         if (!domain || !dc_info) {
 759                 wbc_status = WBC_ERR_INVALID_PARAM;
 760                 BAIL_ON_WBC_ERROR(wbc_status);
 761         }
 762
 763         ZERO_STRUCT(request);
 764         ZERO_STRUCT(response);
 765
 766         request.data.dsgetdcname.flags = flags;
 767
 768         strncpy(request.data.dsgetdcname.domain_name, domain,
 769                 sizeof(request.data.dsgetdcname.domain_name)-1);
 770
 771         if (site) {
 772                 strncpy(request.data.dsgetdcname.site_name, site,
 773                         sizeof(request.data.dsgetdcname.site_name)-1);
 774         }
 775
 776         if (guid) {
 777                 char *str = NULL;
 778
 779                 wbc_status = wbcGuidToString(guid, &str);
 780                 BAIL_ON_WBC_ERROR(wbc_status);
 781
 782                 strncpy(request.data.dsgetdcname.domain_guid, str,
 783                         sizeof(request.data.dsgetdcname.domain_guid)-1);
 784
 785                 wbcFreeMemory(str);
 786         }
 787
 788         /* Send request */
 789
 790         wbc_status = wbcRequestResponse(ctx, WINBINDD_DSGETDCNAME,
 791                                         &request,
 792                                         &response);
 793         BAIL_ON_WBC_ERROR(wbc_status);
 794
 795         if (dc_info) {
 796                 wbc_status = wbc_create_domain_controller_info_ex(&response,
 797                                                                   dc_info);
 798                 BAIL_ON_WBC_ERROR(wbc_status);
 799         }
 800
 801         wbc_status = WBC_ERR_SUCCESS;
 802 done:
 803         return wbc_status;
 804 }
 805
 806 wbcErr wbcLookupDomainControllerEx(const char *domain,
 807                                    struct wbcGuid *guid,
 808                                    const char *site,
 809                                    uint32_t flags,
 810                                    struct wbcDomainControllerInfoEx **dc_info)
 811 {
 812         return wbcCtxLookupDomainControllerEx(NULL, domain, guid, site,
 813                                               flags, dc_info);
 814 }
 815
 816 static void wbcNamedBlobDestructor(void *ptr)
 817 {
 818         struct wbcNamedBlob *b = (struct wbcNamedBlob *)ptr;
 819
 820         while (b->name != NULL) {
 821                 free(discard_const_p(char, b->name));
 822                 free(b->blob.data);
 823                 b += 1;
 824         }
 825 }
 826
 827 /* Initialize a named blob and add to list of blobs */
 828 wbcErr wbcAddNamedBlob(size_t *num_blobs,
 829                        struct wbcNamedBlob **pblobs,
 830                        const char *name,
 831                        uint32_t flags,
 832                        uint8_t *data,
 833                        size_t length)
 834 {
 835         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 836         struct wbcNamedBlob *blobs, *blob;
 837
 838         if (name == NULL) {
 839                 return WBC_ERR_INVALID_PARAM;
 840         }
 841
 842         /*
 843          * Overallocate the b->name==NULL terminator for
 844          * wbcNamedBlobDestructor
 845          */
 846         blobs = (struct wbcNamedBlob *)wbcAllocateMemory(
 847                 *num_blobs + 2, sizeof(struct wbcNamedBlob),
 848                 wbcNamedBlobDestructor);
 849
 850         if (blobs == NULL) {
 851                 return WBC_ERR_NO_MEMORY;
 852         }
 853
 854         if (*pblobs != NULL) {
 855                 struct wbcNamedBlob *old = *pblobs;
 856                 memcpy(blobs, old, sizeof(struct wbcNamedBlob) * (*num_blobs));
 857                 if (*num_blobs != 0) {
 858                         /* end indicator for wbcNamedBlobDestructor */
 859                         old[0].name = NULL;
 860                 }
 861                 wbcFreeMemory(old);
 862         }
 863         *pblobs = blobs;
 864
 865         blob = &blobs[*num_blobs];
 866
 867         blob->name = strdup(name);
 868         BAIL_ON_PTR_ERROR(blob->name, wbc_status);
 869         blob->flags = flags;
 870
 871         blob->blob.length = length;
 872         blob->blob.data = (uint8_t *)malloc(length);
 873         BAIL_ON_PTR_ERROR(blob->blob.data, wbc_status);
 874         memcpy(blob->blob.data, data, length);
 875
 876         *num_blobs += 1;
 877         *pblobs = blobs;
 878         blobs = NULL;
 879
 880         wbc_status = WBC_ERR_SUCCESS;
 881 done:
 882         wbcFreeMemory(blobs);
 883         return wbc_status;
 884 }