source3/lib/winbind_util.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Winbind Utility functions
   4
   5    Copyright (C) Gerald (Jerry) Carter   2007
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 #include "includes.h"
  22
  23 #if defined(WITH_WINBIND)
  24
  25 #include "nsswitch/libwbclient/wbclient.h"
  26
  27 struct passwd * winbind_getpwnam(const char * name)
  28 {
  29         wbcErr result;
  30         struct passwd * tmp_pwd = NULL;
  31         struct passwd * pwd = NULL;
  32
  33         result = wbcGetpwnam(name, &tmp_pwd);
  34         if (result != WBC_ERR_SUCCESS)
  35                 return pwd;
  36
  37         pwd = tcopy_passwd(talloc_tos(), tmp_pwd);
  38
  39         wbcFreeMemory(tmp_pwd);
  40
  41         return pwd;
  42 }
  43
  44 struct passwd * winbind_getpwsid(const DOM_SID *sid)
  45 {
  46         wbcErr result;
  47         struct passwd * tmp_pwd = NULL;
  48         struct passwd * pwd = NULL;
  49         struct wbcDomainSid dom_sid;
  50
  51         memcpy(&dom_sid, sid, sizeof(dom_sid));
  52
  53         result = wbcGetpwsid(&dom_sid, &tmp_pwd);
  54         if (result != WBC_ERR_SUCCESS)
  55                 return pwd;
  56
  57         pwd = tcopy_passwd(talloc_tos(), tmp_pwd);
  58
  59         wbcFreeMemory(tmp_pwd);
  60
  61         return pwd;
  62 }
  63
  64 /* Call winbindd to convert a name to a sid */
  65
  66 bool winbind_lookup_name(const char *dom_name, const char *name, DOM_SID *sid,
  67                          enum lsa_SidType *name_type)
  68 {
  69         struct wbcDomainSid dom_sid;
  70         wbcErr result;
  71         enum wbcSidType type;
  72
  73         result = wbcLookupName(dom_name, name, &dom_sid, &type);
  74         if (result != WBC_ERR_SUCCESS)
  75                 return false;
  76
  77         memcpy(sid, &dom_sid, sizeof(DOM_SID));
  78         *name_type = (enum lsa_SidType)type;
  79
  80         return true;
  81 }
  82
  83 /* Call winbindd to convert sid to name */
  84
  85 bool winbind_lookup_sid(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
  86                         const char **domain, const char **name,
  87                         enum lsa_SidType *name_type)
  88 {
  89         struct wbcDomainSid dom_sid;
  90         wbcErr result;
  91         enum wbcSidType type;
  92         char *domain_name = NULL;
  93         char *account_name = NULL;
  94
  95         memcpy(&dom_sid, sid, sizeof(dom_sid));
  96
  97         result = wbcLookupSid(&dom_sid, &domain_name, &account_name, &type);
  98         if (result != WBC_ERR_SUCCESS)
  99                 return false;
 100
 101         /* Copy out result */
 102
 103         if (domain) {
 104                 *domain = talloc_strdup(mem_ctx, domain_name);
 105         }
 106         if (name) {
 107                 *name = talloc_strdup(mem_ctx, account_name);
 108         }
 109         *name_type = (enum lsa_SidType)type;
 110
 111         DEBUG(10, ("winbind_lookup_sid: SUCCESS: SID %s -> %s %s\n",
 112                    sid_string_dbg(sid), domain_name, account_name));
 113
 114         wbcFreeMemory(domain_name);
 115         wbcFreeMemory(account_name);
 116
 117         if ((domain && !*domain) || (name && !*name)) {
 118                 DEBUG(0,("winbind_lookup_sid: talloc() failed!\n"));
 119                 return false;
 120         }
 121
 122
 123         return true;
 124 }
 125
 126 /* Ping winbindd to see it is alive */
 127
 128 bool winbind_ping(void)
 129 {
 130         wbcErr result = wbcPing();
 131
 132         return (result == WBC_ERR_SUCCESS);
 133 }
 134
 135 /* Call winbindd to convert SID to uid */
 136
 137 bool winbind_sid_to_uid(uid_t *puid, const DOM_SID *sid)
 138 {
 139         struct wbcDomainSid dom_sid;
 140         wbcErr result;
 141
 142         memcpy(&dom_sid, sid, sizeof(dom_sid));
 143
 144         result = wbcSidToUid(&dom_sid, puid);
 145
 146         return (result == WBC_ERR_SUCCESS);
 147 }
 148
 149 /* Call winbindd to convert uid to sid */
 150
 151 bool winbind_uid_to_sid(DOM_SID *sid, uid_t uid)
 152 {
 153         struct wbcDomainSid dom_sid;
 154         wbcErr result;
 155
 156         result = wbcUidToSid(uid, &dom_sid);
 157         if (result == WBC_ERR_SUCCESS) {
 158                 memcpy(sid, &dom_sid, sizeof(DOM_SID));
 159         } else {
 160                 sid_copy(sid, &global_sid_NULL);
 161         }
 162
 163         return (result == WBC_ERR_SUCCESS);
 164 }
 165
 166 /* Call winbindd to convert SID to gid */
 167
 168 bool winbind_sid_to_gid(gid_t *pgid, const DOM_SID *sid)
 169 {
 170         struct wbcDomainSid dom_sid;
 171         wbcErr result;
 172
 173         memcpy(&dom_sid, sid, sizeof(dom_sid));
 174
 175         result = wbcSidToGid(&dom_sid, pgid);
 176
 177         return (result == WBC_ERR_SUCCESS);
 178 }
 179
 180 /* Call winbindd to convert gid to sid */
 181
 182 bool winbind_gid_to_sid(DOM_SID *sid, gid_t gid)
 183 {
 184         struct wbcDomainSid dom_sid;
 185         wbcErr result;
 186
 187         result = wbcGidToSid(gid, &dom_sid);
 188         if (result == WBC_ERR_SUCCESS) {
 189                 memcpy(sid, &dom_sid, sizeof(DOM_SID));
 190         } else {
 191                 sid_copy(sid, &global_sid_NULL);
 192         }
 193
 194         return (result == WBC_ERR_SUCCESS);
 195 }
 196
 197 /* Check for a trusted domain */
 198
 199 wbcErr wb_is_trusted_domain(const char *domain)
 200 {
 201         wbcErr result;
 202         struct wbcDomainInfo *info = NULL;
 203
 204         result = wbcDomainInfo(domain, &info);
 205
 206         if (WBC_ERROR_IS_OK(result)) {
 207                 wbcFreeMemory(info);
 208         }
 209
 210         return result;
 211 }
 212
 213 /* Lookup a set of rids in a given domain */
 214
 215 bool winbind_lookup_rids(TALLOC_CTX *mem_ctx,
 216                          const DOM_SID *domain_sid,
 217                          int num_rids, uint32 *rids,
 218                          const char **domain_name,
 219                          const char ***names, enum lsa_SidType **types)
 220 {
 221         const char *dom_name = NULL;
 222         const char **namelist = NULL;
 223         enum wbcSidType *name_types = NULL;
 224         struct wbcDomainSid dom_sid;
 225         wbcErr ret;
 226         int i;
 227
 228         memcpy(&dom_sid, domain_sid, sizeof(struct wbcDomainSid));
 229
 230         ret = wbcLookupRids(&dom_sid, num_rids, rids,
 231                             &dom_name, &namelist, &name_types);
 232         if (ret != WBC_ERR_SUCCESS) {
 233                 return false;
 234         }
 235
 236         *domain_name = talloc_strdup(mem_ctx, dom_name);
 237         *names       = TALLOC_ARRAY(mem_ctx, const char*, num_rids);
 238         *types       = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_rids);
 239
 240         for(i=0; i<num_rids; i++) {
 241                 (*names)[i] = talloc_strdup(*names, namelist[i]);
 242                 (*types)[i] = (enum lsa_SidType)name_types[i];
 243         }
 244
 245         wbcFreeMemory(CONST_DISCARD(char*, dom_name));
 246         wbcFreeMemory(namelist);
 247         wbcFreeMemory(name_types);
 248
 249         return true;
 250 }
 251
 252 /* Ask Winbind to allocate a new uid for us */
 253
 254 bool winbind_allocate_uid(uid_t *uid)
 255 {
 256         wbcErr ret;
 257
 258         ret = wbcAllocateUid(uid);
 259
 260         return (ret == WBC_ERR_SUCCESS);
 261 }
 262
 263 /* Ask Winbind to allocate a new gid for us */
 264
 265 bool winbind_allocate_gid(gid_t *gid)
 266 {
 267         wbcErr ret;
 268
 269         ret = wbcAllocateGid(gid);
 270
 271         return (ret == WBC_ERR_SUCCESS);
 272 }
 273
 274 bool winbind_get_groups(TALLOC_CTX * mem_ctx, const char *account, uint32_t *num_groups, gid_t **_groups)
 275 {
 276         wbcErr ret;
 277         uint32_t ngroups;
 278         gid_t *group_list = NULL;
 279
 280         ret = wbcGetGroups(account, &ngroups, &group_list);
 281         if (ret != WBC_ERR_SUCCESS)
 282                 return false;
 283
 284         *_groups = TALLOC_ARRAY(mem_ctx, gid_t, ngroups);
 285         if (*_groups == NULL) {
 286             wbcFreeMemory(group_list);
 287             return false;
 288         }
 289
 290         memcpy(*_groups, group_list, ngroups* sizeof(gid_t));
 291         *num_groups = ngroups;
 292
 293         wbcFreeMemory(group_list);
 294         return true;
 295 }
 296
 297 bool winbind_get_sid_aliases(TALLOC_CTX *mem_ctx,
 298                              const DOM_SID *dom_sid,
 299                              const DOM_SID *members,
 300                              size_t num_members,
 301                              uint32_t **pp_alias_rids,
 302                              size_t *p_num_alias_rids)
 303 {
 304         wbcErr ret;
 305         struct wbcDomainSid domain_sid;
 306         struct wbcDomainSid *sid_list = NULL;
 307         size_t i;
 308         uint32_t * rids;
 309         uint32_t num_rids;
 310
 311         memcpy(&domain_sid, dom_sid, sizeof(*dom_sid));
 312
 313         sid_list = TALLOC_ARRAY(mem_ctx, struct wbcDomainSid, num_members);
 314
 315         for (i=0; i < num_members; i++) {
 316             memcpy(&sid_list[i], &members[i], sizeof(sid_list[i]));
 317         }
 318
 319         ret = wbcGetSidAliases(&domain_sid,
 320                                sid_list,
 321                                num_members,
 322                                &rids,
 323                                &num_rids);
 324         if (ret != WBC_ERR_SUCCESS) {
 325                 return false;
 326         }
 327
 328         *pp_alias_rids = TALLOC_ARRAY(mem_ctx, uint32_t, num_rids);
 329         if (*pp_alias_rids == NULL) {
 330                 wbcFreeMemory(rids);
 331                 return false;
 332         }
 333
 334         memcpy(*pp_alias_rids, rids, sizeof(uint32_t) * num_rids);
 335
 336         *p_num_alias_rids = num_rids;
 337         wbcFreeMemory(rids);
 338
 339         return true;
 340 }
 341
 342 #else      /* WITH_WINBIND */
 343
 344 struct passwd * winbind_getpwnam(const char * name)
 345 {
 346         return NULL;
 347 }
 348
 349 struct passwd * winbind_getpwsid(const DOM_SID *sid)
 350 {
 351         return NULL;
 352 }
 353
 354 bool winbind_lookup_name(const char *dom_name, const char *name, DOM_SID *sid,
 355                          enum lsa_SidType *name_type)
 356 {
 357         return false;
 358 }
 359
 360 /* Call winbindd to convert sid to name */
 361
 362 bool winbind_lookup_sid(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
 363                         const char **domain, const char **name,
 364                         enum lsa_SidType *name_type)
 365 {
 366         return false;
 367 }
 368
 369 /* Ping winbindd to see it is alive */
 370
 371 bool winbind_ping(void)
 372 {
 373         return false;
 374 }
 375
 376 /* Call winbindd to convert SID to uid */
 377
 378 bool winbind_sid_to_uid(uid_t *puid, const DOM_SID *sid)
 379 {
 380         return false;
 381 }
 382
 383 /* Call winbindd to convert uid to sid */
 384
 385 bool winbind_uid_to_sid(DOM_SID *sid, uid_t uid)
 386 {
 387         return false;
 388 }
 389
 390 /* Call winbindd to convert SID to gid */
 391
 392 bool winbind_sid_to_gid(gid_t *pgid, const DOM_SID *sid)
 393 {
 394         return false;
 395 }
 396
 397 /* Call winbindd to convert gid to sid */
 398
 399 bool winbind_gid_to_sid(DOM_SID *sid, gid_t gid)
 400 {
 401         return false;
 402 }
 403
 404 /* Check for a trusted domain */
 405
 406 wbcErr wb_is_trusted_domain(const char *domain)
 407 {
 408         return WBC_ERR_UNKNOWN_FAILURE;
 409 }
 410
 411 /* Lookup a set of rids in a given domain */
 412
 413 bool winbind_lookup_rids(TALLOC_CTX *mem_ctx,
 414                          const DOM_SID *domain_sid,
 415                          int num_rids, uint32 *rids,
 416                          const char **domain_name,
 417                          const char ***names, enum lsa_SidType **types)
 418 {
 419         return false;
 420 }
 421
 422 /* Ask Winbind to allocate a new uid for us */
 423
 424 bool winbind_allocate_uid(uid_t *uid)
 425 {
 426         return false;
 427 }
 428
 429 /* Ask Winbind to allocate a new gid for us */
 430
 431 bool winbind_allocate_gid(gid_t *gid)
 432 {
 433         return false;
 434 }
 435
 436 bool winbind_get_groups(TALLOC_CTX *mem_ctx, const char *account, uint32_t *num_groups, gid_t **_groups)
 437 {
 438         return false;
 439 }
 440
 441 bool winbind_get_sid_aliases(TALLOC_CTX *mem_ctx,
 442                              const DOM_SID *dom_sid,
 443                              const DOM_SID *members,
 444                              size_t num_members,
 445                              uint32_t **pp_alias_rids,
 446                              size_t *p_num_alias_rids)
 447 {
 448         return false;
 449 }
 450
 451 #endif     /* WITH_WINBIND */