source/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 "libwbclient.h"
  26
  27
  28
  29 /** @brief Ping winbindd to see if the daemon is running
  30  *
  31  * @return #wbcErr
  32  **/
  33
  34 wbcErr wbcPing(void)
  35 {
  36         struct winbindd_request request;
  37         struct winbindd_response response;
  38
  39         /* Initialize request */
  40
  41         ZERO_STRUCT(request);
  42         ZERO_STRUCT(response);
  43
  44         return wbcRequestResponse(WINBINDD_PING, &request, &response);
  45 }
  46
  47 wbcErr wbcInterfaceDetails(struct wbcInterfaceDetails **_details)
  48 {
  49         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  50         struct wbcInterfaceDetails *info;
  51         struct wbcDomainInfo *domain = NULL;
  52         struct winbindd_request request;
  53         struct winbindd_response response;
  54
  55         /* Initialize request */
  56
  57         ZERO_STRUCT(request);
  58         ZERO_STRUCT(response);
  59
  60         info = talloc(NULL, struct wbcInterfaceDetails);
  61         BAIL_ON_PTR_ERROR(info, wbc_status);
  62
  63         /* first the interface version */
  64         wbc_status = wbcRequestResponse(WINBINDD_INTERFACE_VERSION, NULL, &response);
  65         BAIL_ON_WBC_ERROR(wbc_status);
  66         info->interface_version = response.data.interface_version;
  67
  68         /* then the samba version and the winbind separator */
  69         wbc_status = wbcRequestResponse(WINBINDD_INFO, NULL, &response);
  70         BAIL_ON_WBC_ERROR(wbc_status);
  71
  72         info->winbind_version = talloc_strdup(info,
  73                                               response.data.info.samba_version);
  74         BAIL_ON_PTR_ERROR(info->winbind_version, wbc_status);
  75         info->winbind_separator = response.data.info.winbind_separator;
  76
  77         /* then the local netbios name */
  78         wbc_status = wbcRequestResponse(WINBINDD_NETBIOS_NAME, NULL, &response);
  79         BAIL_ON_WBC_ERROR(wbc_status);
  80
  81         info->netbios_name = talloc_strdup(info,
  82                                            response.data.netbios_name);
  83         BAIL_ON_PTR_ERROR(info->netbios_name, wbc_status);
  84
  85         /* then the local workgroup name */
  86         wbc_status = wbcRequestResponse(WINBINDD_DOMAIN_NAME, NULL, &response);
  87         BAIL_ON_WBC_ERROR(wbc_status);
  88
  89         info->netbios_domain = talloc_strdup(info,
  90                                         response.data.domain_name);
  91         BAIL_ON_PTR_ERROR(info->netbios_domain, wbc_status);
  92
  93         wbc_status = wbcDomainInfo(info->netbios_domain, &domain);
  94         if (wbc_status == WBC_ERR_DOMAIN_NOT_FOUND) {
  95                 /* maybe it's a standalone server */
  96                 domain = NULL;
  97                 wbc_status = WBC_ERR_SUCCESS;
  98         } else {
  99                 BAIL_ON_WBC_ERROR(wbc_status);
 100         }
 101
 102         if (domain) {
 103                 info->dns_domain = talloc_strdup(info,
 104                                                  domain->dns_name);
 105                 wbcFreeMemory(domain);
 106                 BAIL_ON_PTR_ERROR(info->dns_domain, wbc_status);
 107         } else {
 108                 info->dns_domain = NULL;
 109         }
 110
 111         *_details = info;
 112         info = NULL;
 113
 114         wbc_status = WBC_ERR_SUCCESS;
 115
 116 done:
 117         talloc_free(info);
 118         return wbc_status;
 119 }
 120
 121
 122 /** @brief Lookup the current status of a trusted domain
 123  *
 124  * @param domain      Domain to query
 125  * @param *dinfo       Pointer to returned domain_info struct
 126  *
 127  * @return #wbcErr
 128  *
 129  **/
 130
 131
 132 wbcErr wbcDomainInfo(const char *domain, struct wbcDomainInfo **dinfo)
 133 {
 134         struct winbindd_request request;
 135         struct winbindd_response response;
 136         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 137         struct wbcDomainInfo *info = NULL;
 138
 139         if (!domain || !dinfo) {
 140                 wbc_status = WBC_ERR_INVALID_PARAM;
 141                 BAIL_ON_WBC_ERROR(wbc_status);
 142         }
 143
 144         /* Initialize request */
 145
 146         ZERO_STRUCT(request);
 147         ZERO_STRUCT(response);
 148
 149         strncpy(request.domain_name, domain,
 150                 sizeof(request.domain_name)-1);
 151
 152         wbc_status = wbcRequestResponse(WINBINDD_DOMAIN_INFO,
 153                                         &request,
 154                                         &response);
 155         BAIL_ON_WBC_ERROR(wbc_status);
 156
 157         info = talloc(NULL, struct wbcDomainInfo);
 158         BAIL_ON_PTR_ERROR(info, wbc_status);
 159
 160         info->short_name = talloc_strdup(info,
 161                                          response.data.domain_info.name);
 162         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 163
 164         info->dns_name = talloc_strdup(info,
 165                                        response.data.domain_info.alt_name);
 166         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 167
 168         wbc_status = wbcStringToSid(response.data.domain_info.sid,
 169                                     &info->sid);
 170         BAIL_ON_WBC_ERROR(wbc_status);
 171
 172         if (response.data.domain_info.native_mode)
 173                 info->domain_flags |= WBC_DOMINFO_DOMAIN_NATIVE;
 174         if (response.data.domain_info.active_directory)
 175                 info->domain_flags |= WBC_DOMINFO_DOMAIN_AD;
 176         if (response.data.domain_info.primary)
 177                 info->domain_flags |= WBC_DOMINFO_DOMAIN_PRIMARY;
 178
 179         *dinfo = info;
 180
 181         wbc_status = WBC_ERR_SUCCESS;
 182
 183  done:
 184         if (!WBC_ERROR_IS_OK(wbc_status)) {
 185                 talloc_free(info);
 186         }
 187
 188         return wbc_status;
 189 }
 190
 191
 192 /** @brief Resolve a NetbiosName via WINS
 193  *
 194  * @param name         Name to resolve
 195  * @param *ip          Pointer to the ip address string
 196  *
 197  * @return #wbcErr
 198  *
 199  **/
 200 wbcErr wbcResolveWinsByName(const char *name, char **ip)
 201 {
 202         struct winbindd_request request;
 203         struct winbindd_response response;
 204         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 205         char *ipaddr;
 206
 207         ZERO_STRUCT(request);
 208         ZERO_STRUCT(response);
 209
 210         /* Send request */
 211
 212         strncpy(request.data.winsreq, name,
 213                 sizeof(request.data.winsreq)-1);
 214
 215         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYNAME,
 216                                         &request,
 217                                         &response);
 218         BAIL_ON_WBC_ERROR(wbc_status);
 219
 220         /* Display response */
 221
 222         ipaddr = talloc_strdup(NULL, response.data.winsresp);
 223         BAIL_ON_PTR_ERROR(ipaddr, wbc_status);
 224
 225         *ip = ipaddr;
 226         wbc_status = WBC_ERR_SUCCESS;
 227
 228  done:
 229         return wbc_status;
 230 }
 231
 232 /** @brief Resolve an IP address via WINS into a NetbiosName
 233  *
 234  * @param ip          The ip address string
 235  * @param *name       Pointer to the name
 236  *
 237  * @return #wbcErr
 238  *
 239  **/
 240 wbcErr wbcResolveWinsByIP(const char *ip, char **name)
 241 {
 242         struct winbindd_request request;
 243         struct winbindd_response response;
 244         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 245         char *name_str;
 246
 247         ZERO_STRUCT(request);
 248         ZERO_STRUCT(response);
 249
 250         /* Send request */
 251
 252         strncpy(request.data.winsreq, ip,
 253                 sizeof(request.data.winsreq)-1);
 254
 255         wbc_status = wbcRequestResponse(WINBINDD_WINS_BYIP,
 256                                         &request,
 257                                         &response);
 258         BAIL_ON_WBC_ERROR(wbc_status);
 259
 260         /* Display response */
 261
 262         name_str = talloc_strdup(NULL, response.data.winsresp);
 263         BAIL_ON_PTR_ERROR(name_str, wbc_status);
 264
 265         *name = name_str;
 266         wbc_status = WBC_ERR_SUCCESS;
 267
 268  done:
 269         return wbc_status;
 270 }
 271
 272 /**
 273  */
 274
 275 static wbcErr process_domain_info_string(TALLOC_CTX *ctx,
 276                                          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         if (!info || !info_string) {
 284                 wbc_status = WBC_ERR_INVALID_PARAM;
 285                 BAIL_ON_WBC_ERROR(wbc_status);
 286         }
 287
 288         r = info_string;
 289
 290         /* Short Name */
 291         if ((s = strchr(r, '\\')) == NULL) {
 292                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 293                 BAIL_ON_WBC_ERROR(wbc_status);
 294         }
 295         *s = '\0';
 296         s++;
 297
 298         info->short_name = talloc_strdup(ctx, r);
 299         BAIL_ON_PTR_ERROR(info->short_name, wbc_status);
 300
 301
 302         /* DNS Name */
 303         r = s;
 304         if ((s = strchr(r, '\\')) == NULL) {
 305                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 306                 BAIL_ON_WBC_ERROR(wbc_status);
 307         }
 308         *s = '\0';
 309         s++;
 310
 311         info->dns_name = talloc_strdup(ctx, r);
 312         BAIL_ON_PTR_ERROR(info->dns_name, wbc_status);
 313
 314         /* SID */
 315         r = s;
 316         if ((s = strchr(r, '\\')) == NULL) {
 317                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 318                 BAIL_ON_WBC_ERROR(wbc_status);
 319         }
 320         *s = '\0';
 321         s++;
 322
 323         wbc_status = wbcStringToSid(r, &info->sid);
 324         BAIL_ON_WBC_ERROR(wbc_status);
 325
 326         /* Trust type */
 327         r = s;
 328         if ((s = strchr(r, '\\')) == NULL) {
 329                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 330                 BAIL_ON_WBC_ERROR(wbc_status);
 331         }
 332         *s = '\0';
 333         s++;
 334
 335         if (strcmp(r, "None") == 0) {
 336                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_NONE;
 337         } else if (strcmp(r, "External") == 0) {
 338                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_EXTERNAL;
 339         } else if (strcmp(r, "Forest") == 0) {
 340                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_FOREST;
 341         } else if (strcmp(r, "In Forest") == 0) {
 342                 info->trust_type = WBC_DOMINFO_TRUSTTYPE_IN_FOREST;
 343         } else {
 344                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 345                 BAIL_ON_WBC_ERROR(wbc_status);
 346         }
 347
 348         /* Transitive */
 349         r = s;
 350         if ((s = strchr(r, '\\')) == NULL) {
 351                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 352                 BAIL_ON_WBC_ERROR(wbc_status);
 353         }
 354         *s = '\0';
 355         s++;
 356
 357         if (strcmp(r, "Yes") == 0) {
 358                 info->trust_flags |= WBC_DOMINFO_TRUST_TRANSITIVE;
 359         }
 360
 361         /* Incoming */
 362         r = s;
 363         if ((s = strchr(r, '\\')) == NULL) {
 364                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 365                 BAIL_ON_WBC_ERROR(wbc_status);
 366         }
 367         *s = '\0';
 368         s++;
 369
 370         if (strcmp(r, "Yes") == 0) {
 371                 info->trust_flags |= WBC_DOMINFO_TRUST_INCOMING;
 372         }
 373
 374         /* Outgoing */
 375         r = s;
 376         if ((s = strchr(r, '\\')) == NULL) {
 377                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 378                 BAIL_ON_WBC_ERROR(wbc_status);
 379         }
 380         *s = '\0';
 381         s++;
 382
 383         if (strcmp(r, "Yes") == 0) {
 384                 info->trust_flags |= WBC_DOMINFO_TRUST_OUTGOING;
 385         }
 386
 387         /* Online/Offline status */
 388
 389         r = s;
 390         if (r == NULL) {
 391                 wbc_status = WBC_ERR_INVALID_RESPONSE;
 392                 BAIL_ON_WBC_ERROR(wbc_status);
 393         }
 394         if ( strcmp(r, "Offline") == 0) {
 395                 info->domain_flags |= WBC_DOMINFO_DOMAIN_OFFLINE;
 396         }
 397
 398         wbc_status = WBC_ERR_SUCCESS;
 399
 400  done:
 401         return wbc_status;
 402 }
 403
 404 /** @brief Enumerate the domain trusts known by Winbind
 405  *
 406  * @param **domains     Pointer to the allocated domain list array
 407  * @param *num_domains  Pointer to number of domains returned
 408  *
 409  * @return #wbcErr
 410  *
 411  **/
 412 wbcErr wbcListTrusts(struct wbcDomainInfo **domains, size_t *num_domains)
 413 {
 414         struct winbindd_response response;
 415         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 416         char *p = NULL;
 417         char *q = NULL;
 418         char *extra_data = NULL;
 419         int count = 0;
 420         struct wbcDomainInfo *d_list = NULL;
 421         int i = 0;
 422
 423         *domains = NULL;
 424         *num_domains = 0;
 425
 426         ZERO_STRUCT(response);
 427
 428         /* Send request */
 429
 430         wbc_status = wbcRequestResponse(WINBINDD_LIST_TRUSTDOM,
 431                                         NULL,
 432                                         &response);
 433         BAIL_ON_WBC_ERROR(wbc_status);
 434
 435         /* Decode the response */
 436
 437         p = (char *)response.extra_data.data;
 438
 439         if (strlen(p) == 0) {
 440                 /* We should always at least get back our
 441                    own SAM domain */
 442
 443                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
 444                 BAIL_ON_WBC_ERROR(wbc_status);
 445         }
 446
 447         /* Count number of domains */
 448
 449         count = 0;
 450         while (p) {
 451                 count++;
 452
 453                 if ((q = strchr(p, '\n')) != NULL)
 454                         q++;
 455                 p = q;
 456         }
 457
 458         d_list = talloc_array(NULL, struct wbcDomainInfo, count);
 459         BAIL_ON_PTR_ERROR(d_list, wbc_status);
 460
 461         extra_data = strdup((char*)response.extra_data.data);
 462         BAIL_ON_PTR_ERROR(extra_data, wbc_status);
 463
 464         p = extra_data;
 465
 466         /* Outer loop processes the list of domain information */
 467
 468         for (i=0; i<count && p; i++) {
 469                 char *next = strchr(p, '\n');
 470
 471                 if (next) {
 472                         *next = '\0';
 473                         next++;
 474                 }
 475
 476                 wbc_status = process_domain_info_string(d_list, &d_list[i], p);
 477                 BAIL_ON_WBC_ERROR(wbc_status);
 478
 479                 p = next;
 480         }
 481
 482         *domains = d_list;
 483         *num_domains = i;
 484
 485  done:
 486         if (!WBC_ERROR_IS_OK(wbc_status)) {
 487                 if (d_list)
 488                         talloc_free(d_list);
 489                 if (extra_data)
 490                         free(extra_data);
 491         }
 492
 493         return wbc_status;
 494 }