source3/libads/ldap_schema.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    ads (active directory) utility library
   4    Copyright (C) Guenther Deschner 2005-2007
   5    Copyright (C) Gerald (Jerry) Carter 2006
   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 #ifdef HAVE_LDAP
  24
  25 ADS_STATUS ads_get_attrnames_by_oids(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx,
  26                                      const char *schema_path,
  27                                      const char **OIDs, size_t num_OIDs,
  28                                      char ***OIDs_out, char ***names, size_t *count)
  29 {
  30         ADS_STATUS status;
  31         LDAPMessage *res = NULL;
  32         LDAPMessage *msg;
  33         char *expr = NULL;
  34         const char *attrs[] = { "lDAPDisplayName", "attributeId", NULL };
  35         int i = 0, p = 0;
  36
  37         if (!ads || !mem_ctx || !names || !count || !OIDs || !OIDs_out) {
  38                 return ADS_ERROR(LDAP_PARAM_ERROR);
  39         }
  40
  41         if (num_OIDs == 0 || OIDs[0] == NULL) {
  42                 return ADS_ERROR_NT(NT_STATUS_NONE_MAPPED);
  43         }
  44
  45         if ((expr = talloc_asprintf(mem_ctx, "(|")) == NULL) {
  46                 return ADS_ERROR(LDAP_NO_MEMORY);
  47         }
  48
  49         for (i=0; i<num_OIDs; i++) {
  50
  51                 if ((expr = talloc_asprintf_append(expr, "(attributeId=%s)",
  52                                                    OIDs[i])) == NULL) {
  53                         return ADS_ERROR(LDAP_NO_MEMORY);
  54                 }
  55         }
  56
  57         if ((expr = talloc_asprintf_append(expr, ")")) == NULL) {
  58                 return ADS_ERROR(LDAP_NO_MEMORY);
  59         }
  60
  61         status = ads_do_search_retry(ads, schema_path,
  62                                      LDAP_SCOPE_SUBTREE, expr, attrs, &res);
  63         if (!ADS_ERR_OK(status)) {
  64                 return status;
  65         }
  66
  67         *count = ads_count_replies(ads, res);
  68         if (*count == 0 || !res) {
  69                 status = ADS_ERROR_NT(NT_STATUS_NONE_MAPPED);
  70                 goto out;
  71         }
  72
  73         if (((*names) = TALLOC_ARRAY(mem_ctx, char *, *count)) == NULL) {
  74                 status = ADS_ERROR(LDAP_NO_MEMORY);
  75                 goto out;
  76         }
  77         if (((*OIDs_out) = TALLOC_ARRAY(mem_ctx, char *, *count)) == NULL) {
  78                 status = ADS_ERROR(LDAP_NO_MEMORY);
  79                 goto out;
  80         }
  81
  82         for (msg = ads_first_entry(ads, res); msg != NULL;
  83              msg = ads_next_entry(ads, msg)) {
  84
  85                 (*names)[p]     = ads_pull_string(ads, mem_ctx, msg,
  86                                                   "lDAPDisplayName");
  87                 (*OIDs_out)[p]  = ads_pull_string(ads, mem_ctx, msg,
  88                                                   "attributeId");
  89                 if (((*names)[p] == NULL) || ((*OIDs_out)[p] == NULL)) {
  90                         status = ADS_ERROR(LDAP_NO_MEMORY);
  91                         goto out;
  92                 }
  93
  94                 p++;
  95         }
  96
  97         if (*count < num_OIDs) {
  98                 status = ADS_ERROR_NT(STATUS_SOME_UNMAPPED);
  99                 goto out;
 100         }
 101
 102         status = ADS_ERROR(LDAP_SUCCESS);
 103 out:
 104         ads_msgfree(ads, res);
 105
 106         return status;
 107 }
 108
 109 const char *ads_get_attrname_by_guid(ADS_STRUCT *ads,
 110                                      const char *schema_path,
 111                                      TALLOC_CTX *mem_ctx,
 112                                      const char *schema_guid)
 113 {
 114         ADS_STATUS rc;
 115         LDAPMessage *res = NULL;
 116         char *expr = NULL;
 117         const char *attrs[] = { "lDAPDisplayName", NULL };
 118         const char *result = NULL;
 119         struct GUID guid;
 120         char *guid_bin = NULL;
 121
 122         if (!ads || !mem_ctx || !schema_guid) {
 123                 goto done;
 124         }
 125
 126         if (!NT_STATUS_IS_OK(GUID_from_string(schema_guid, &guid))) {
 127                 goto done;
 128         }
 129
 130         guid_bin = guid_binstring(&guid);
 131         if (!guid_bin) {
 132                 goto done;
 133         }
 134
 135         expr = talloc_asprintf(mem_ctx, "(schemaIDGUID=%s)", guid_bin);
 136         if (!expr) {
 137                 goto done;
 138         }
 139
 140         rc = ads_do_search_retry(ads, schema_path, LDAP_SCOPE_SUBTREE,
 141                                  expr, attrs, &res);
 142         if (!ADS_ERR_OK(rc)) {
 143                 goto done;
 144         }
 145
 146         if (ads_count_replies(ads, res) != 1) {
 147                 goto done;
 148         }
 149
 150         result = ads_pull_string(ads, mem_ctx, res, "lDAPDisplayName");
 151
 152  done:
 153         SAFE_FREE(guid_bin);
 154         ads_msgfree(ads, res);
 155         return result;
 156
 157 }
 158
 159 const char *ads_get_attrname_by_oid(ADS_STRUCT *ads, const char *schema_path, TALLOC_CTX *mem_ctx, const char * OID)
 160 {
 161         ADS_STATUS rc;
 162         int count = 0;
 163         LDAPMessage *res = NULL;
 164         char *expr = NULL;
 165         const char *attrs[] = { "lDAPDisplayName", NULL };
 166         char *result;
 167
 168         if (ads == NULL || mem_ctx == NULL || OID == NULL) {
 169                 goto failed;
 170         }
 171
 172         expr = talloc_asprintf(mem_ctx, "(attributeId=%s)", OID);
 173         if (expr == NULL) {
 174                 goto failed;
 175         }
 176
 177         rc = ads_do_search_retry(ads, schema_path, LDAP_SCOPE_SUBTREE,
 178                 expr, attrs, &res);
 179         if (!ADS_ERR_OK(rc)) {
 180                 goto failed;
 181         }
 182
 183         count = ads_count_replies(ads, res);
 184         if (count == 0 || !res) {
 185                 goto failed;
 186         }
 187
 188         result = ads_pull_string(ads, mem_ctx, res, "lDAPDisplayName");
 189         ads_msgfree(ads, res);
 190
 191         return result;
 192
 193 failed:
 194         DEBUG(0,("ads_get_attrname_by_oid: failed to retrieve name for oid: %s\n",
 195                 OID));
 196
 197         ads_msgfree(ads, res);
 198         return NULL;
 199 }
 200 /*********************************************************************
 201 *********************************************************************/
 202
 203 static ADS_STATUS ads_schema_path(ADS_STRUCT *ads, TALLOC_CTX *mem_ctx, char **schema_path)
 204 {
 205         ADS_STATUS status;
 206         LDAPMessage *res;
 207         const char *schema;
 208         const char *attrs[] = { "schemaNamingContext", NULL };
 209
 210         status = ads_do_search(ads, "", LDAP_SCOPE_BASE, "(objectclass=*)", attrs, &res);
 211         if (!ADS_ERR_OK(status)) {
 212                 return status;
 213         }
 214
 215         if ( (schema = ads_pull_string(ads, mem_ctx, res, "schemaNamingContext")) == NULL ) {
 216                 ads_msgfree(ads, res);
 217                 return ADS_ERROR(LDAP_NO_RESULTS_RETURNED);
 218         }
 219
 220         if ( (*schema_path = talloc_strdup(mem_ctx, schema)) == NULL ) {
 221                 ads_msgfree(ads, res);
 222                 return ADS_ERROR(LDAP_NO_MEMORY);
 223         }
 224
 225         ads_msgfree(ads, res);
 226
 227         return status;
 228 }
 229
 230 /**
 231  * Check for "Services for Unix" or rfc2307 Schema and load some attributes into the ADS_STRUCT
 232  * @param ads connection to ads server
 233  * @param enum mapping type
 234  * @return ADS_STATUS status of search (False if one or more attributes couldn't be
 235  * found in Active Directory)
 236  **/
 237 ADS_STATUS ads_check_posix_schema_mapping(TALLOC_CTX *mem_ctx,
 238                                           ADS_STRUCT *ads,
 239                                           enum wb_posix_mapping map_type,
 240                                           struct posix_schema **s )
 241 {
 242         TALLOC_CTX *ctx = NULL;
 243         ADS_STATUS status;
 244         char **oids_out, **names_out;
 245         size_t num_names;
 246         char *schema_path = NULL;
 247         int i;
 248         struct posix_schema *schema = NULL;
 249
 250         const char *oids_sfu[] = {      ADS_ATTR_SFU_UIDNUMBER_OID,
 251                                         ADS_ATTR_SFU_GIDNUMBER_OID,
 252                                         ADS_ATTR_SFU_HOMEDIR_OID,
 253                                         ADS_ATTR_SFU_SHELL_OID,
 254                                         ADS_ATTR_SFU_GECOS_OID};
 255
 256         const char *oids_sfu20[] = {    ADS_ATTR_SFU20_UIDNUMBER_OID,
 257                                         ADS_ATTR_SFU20_GIDNUMBER_OID,
 258                                         ADS_ATTR_SFU20_HOMEDIR_OID,
 259                                         ADS_ATTR_SFU20_SHELL_OID,
 260                                         ADS_ATTR_SFU20_GECOS_OID};
 261
 262         const char *oids_rfc2307[] = {  ADS_ATTR_RFC2307_UIDNUMBER_OID,
 263                                         ADS_ATTR_RFC2307_GIDNUMBER_OID,
 264                                         ADS_ATTR_RFC2307_HOMEDIR_OID,
 265                                         ADS_ATTR_RFC2307_SHELL_OID,
 266                                         ADS_ATTR_RFC2307_GECOS_OID };
 267
 268         DEBUG(10,("ads_check_posix_schema_mapping for schema mode: %d\n", map_type));
 269
 270         switch (map_type) {
 271
 272                 case WB_POSIX_MAP_TEMPLATE:
 273                 case WB_POSIX_MAP_UNIXINFO:
 274                         DEBUG(10,("ads_check_posix_schema_mapping: nothing to do\n"));
 275                         return ADS_ERROR(LDAP_SUCCESS);
 276
 277                 case WB_POSIX_MAP_SFU:
 278                 case WB_POSIX_MAP_SFU20:
 279                 case WB_POSIX_MAP_RFC2307:
 280                         break;
 281
 282                 default:
 283                         DEBUG(0,("ads_check_posix_schema_mapping: "
 284                                  "unknown enum %d\n", map_type));
 285                         return ADS_ERROR(LDAP_PARAM_ERROR);
 286         }
 287
 288         if ( (ctx = talloc_init("ads_check_posix_schema_mapping")) == NULL ) {
 289                 return ADS_ERROR(LDAP_NO_MEMORY);
 290         }
 291
 292         if ( (schema = TALLOC_P(mem_ctx, struct posix_schema)) == NULL ) {
 293                 TALLOC_FREE( ctx );
 294                 return ADS_ERROR(LDAP_NO_MEMORY);
 295         }
 296
 297         status = ads_schema_path(ads, ctx, &schema_path);
 298         if (!ADS_ERR_OK(status)) {
 299                 DEBUG(3,("ads_check_posix_mapping: Unable to retrieve schema DN!\n"));
 300                 goto done;
 301         }
 302
 303         switch (map_type) {
 304                 case WB_POSIX_MAP_SFU:
 305                         status = ads_get_attrnames_by_oids(ads, ctx, schema_path, oids_sfu,
 306                                                            ARRAY_SIZE(oids_sfu),
 307                                                            &oids_out, &names_out, &num_names);
 308                         break;
 309                 case WB_POSIX_MAP_SFU20:
 310                         status = ads_get_attrnames_by_oids(ads, ctx, schema_path, oids_sfu20,
 311                                                            ARRAY_SIZE(oids_sfu20),
 312                                                            &oids_out, &names_out, &num_names);
 313                         break;
 314                 case WB_POSIX_MAP_RFC2307:
 315                         status = ads_get_attrnames_by_oids(ads, ctx, schema_path, oids_rfc2307,
 316                                                            ARRAY_SIZE(oids_rfc2307),
 317                                                            &oids_out, &names_out, &num_names);
 318                         break;
 319                 default:
 320                         status = ADS_ERROR_NT(NT_STATUS_INVALID_PARAMETER);
 321                         break;
 322         }
 323
 324         if (!ADS_ERR_OK(status)) {
 325                 DEBUG(3,("ads_check_posix_schema_mapping: failed %s\n",
 326                         ads_errstr(status)));
 327                 goto done;
 328         }
 329
 330         for (i=0; i<num_names; i++) {
 331
 332                 DEBUGADD(10,("\tOID %s has name: %s\n", oids_out[i], names_out[i]));
 333
 334                 if (strequal(ADS_ATTR_RFC2307_UIDNUMBER_OID, oids_out[i]) ||
 335                     strequal(ADS_ATTR_SFU_UIDNUMBER_OID, oids_out[i]) ||
 336                     strequal(ADS_ATTR_SFU20_UIDNUMBER_OID, oids_out[i])) {
 337                         schema->posix_uidnumber_attr = talloc_strdup(schema, names_out[i]);
 338                         continue;
 339                 }
 340
 341                 if (strequal(ADS_ATTR_RFC2307_GIDNUMBER_OID, oids_out[i]) ||
 342                     strequal(ADS_ATTR_SFU_GIDNUMBER_OID, oids_out[i]) ||
 343                     strequal(ADS_ATTR_SFU20_GIDNUMBER_OID, oids_out[i])) {
 344                         schema->posix_gidnumber_attr = talloc_strdup(schema, names_out[i]);
 345                         continue;
 346                 }
 347
 348                 if (strequal(ADS_ATTR_RFC2307_HOMEDIR_OID, oids_out[i]) ||
 349                     strequal(ADS_ATTR_SFU_HOMEDIR_OID, oids_out[i]) ||
 350                     strequal(ADS_ATTR_SFU20_HOMEDIR_OID, oids_out[i])) {
 351                         schema->posix_homedir_attr = talloc_strdup(schema, names_out[i]);
 352                         continue;
 353                 }
 354
 355                 if (strequal(ADS_ATTR_RFC2307_SHELL_OID, oids_out[i]) ||
 356                     strequal(ADS_ATTR_SFU_SHELL_OID, oids_out[i]) ||
 357                     strequal(ADS_ATTR_SFU20_SHELL_OID, oids_out[i])) {
 358                         schema->posix_shell_attr = talloc_strdup(schema, names_out[i]);
 359                         continue;
 360                 }
 361
 362                 if (strequal(ADS_ATTR_RFC2307_GECOS_OID, oids_out[i]) ||
 363                     strequal(ADS_ATTR_SFU_GECOS_OID, oids_out[i]) ||
 364                     strequal(ADS_ATTR_SFU20_GECOS_OID, oids_out[i])) {
 365                         schema->posix_gecos_attr = talloc_strdup(schema, names_out[i]);
 366                 }
 367         }
 368
 369         if (!schema->posix_uidnumber_attr ||
 370             !schema->posix_gidnumber_attr ||
 371             !schema->posix_homedir_attr ||
 372             !schema->posix_shell_attr ||
 373             !schema->posix_gecos_attr) {
 374                 status = ADS_ERROR(LDAP_NO_MEMORY);
 375                 TALLOC_FREE( schema );
 376                 goto done;
 377         }
 378
 379         *s = schema;
 380
 381         status = ADS_ERROR(LDAP_SUCCESS);
 382
 383 done:
 384         TALLOC_FREE(ctx);
 385
 386         return status;
 387 }
 388
 389 #endif