source/nsswitch/winbindd_passdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind rpc backend functions
   5
   6    Copyright (C) Tim Potter 2000-2001,2003
   7    Copyright (C) Simo Sorce 2003
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program 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
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 */
  23
  24 #include "winbindd.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_WINBIND
  28
  29
  30 /* Query display info for a domain.  This returns enough information plus a
  31    bit extra to give an overview of domain users for the User Manager
  32    application. */
  33 static NTSTATUS query_user_list(struct winbindd_domain *domain,
  34                                TALLOC_CTX *mem_ctx,
  35                                uint32 *num_entries,
  36                                WINBIND_USERINFO **info)
  37 {
  38         SAM_ACCOUNT *sam_account = NULL;
  39         NTSTATUS result;
  40         uint32 i;
  41
  42         DEBUG(3,("pdb: query_user_list\n"));
  43
  44         if (NT_STATUS_IS_ERR(result = pdb_init_sam(&sam_account))) {
  45                 return result;
  46         }
  47
  48         i = 0;
  49         *info = NULL;
  50
  51         if (pdb_setsampwent(False)) {
  52
  53                 while (pdb_getsampwent(sam_account)) {
  54
  55                         /* we return only nua accounts, or we will have duplicates */
  56                         if (!idmap_check_sid_is_in_free_range(pdb_get_user_sid(sam_account))) {
  57                                 continue;
  58                         }
  59
  60                         *info = talloc_realloc(mem_ctx, *info, (i + 1) * sizeof(WINBIND_USERINFO));
  61                         if (!(*info)) {
  62                                 DEBUG(0,("query_user_list: out of memory!\n"));
  63                                 result = NT_STATUS_NO_MEMORY;
  64                                 break;
  65                         }
  66
  67                         (*info)[i].user_sid = talloc(mem_ctx, sizeof(DOM_SID));
  68                         (*info)[i].group_sid = talloc(mem_ctx, sizeof(DOM_SID));
  69                         if (!((*info)[i].user_sid) || !((*info)[i].group_sid)) {
  70                                 DEBUG(0,("query_user_list: out of memory!\n"));
  71                                 result = NT_STATUS_NO_MEMORY;
  72                                 break;
  73                         }
  74                         sid_copy((*info)[i].user_sid, pdb_get_user_sid(sam_account));
  75                         sid_copy((*info)[i].group_sid, pdb_get_group_sid(sam_account));
  76
  77                         (*info)[i].acct_name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
  78                         (*info)[i].full_name = talloc_strdup(mem_ctx, pdb_get_fullname(sam_account));
  79                         if (!((*info)[i].acct_name) || !((*info)[i].full_name)) {
  80                                 DEBUG(0,("query_user_list: out of memory!\n"));
  81                                 result = NT_STATUS_NO_MEMORY;
  82                                 break;
  83                         }
  84
  85                         i++;
  86
  87                         if (NT_STATUS_IS_ERR(pdb_reset_sam(sam_account))) {
  88                                 result = NT_STATUS_UNSUCCESSFUL;
  89                                 break;
  90                         }
  91                 }
  92
  93                 *num_entries = i;
  94                 result = NT_STATUS_OK;
  95
  96         } else {
  97                 result = NT_STATUS_UNSUCCESSFUL;
  98         }
  99
 100         pdb_free_sam(&sam_account);
 101         return result;
 102 }
 103
 104 /* list all domain groups */
 105 static NTSTATUS enum_dom_groups(struct winbindd_domain *domain,
 106                                 TALLOC_CTX *mem_ctx,
 107                                 uint32 *num_entries,
 108                                 struct acct_info **info)
 109 {
 110         NTSTATUS result = NT_STATUS_OK;
 111
 112         DEBUG(3,("pdb: enum_dom_groups (group support not implemented)\n"));
 113
 114         *num_entries = 0;
 115         *info = 0;
 116
 117         return result;
 118 }
 119
 120 /* List all domain groups */
 121
 122 static NTSTATUS enum_local_groups(struct winbindd_domain *domain,
 123                                 TALLOC_CTX *mem_ctx,
 124                                 uint32 *num_entries,
 125                                 struct acct_info **info)
 126 {
 127         NTSTATUS result = NT_STATUS_OK;
 128
 129         DEBUG(3,("pdb: enum_local_groups (group support not implemented)\n"));
 130
 131         *num_entries = 0;
 132         *info = 0;
 133
 134         return result;
 135 }
 136
 137 /* convert a single name to a sid in a domain */
 138 static NTSTATUS name_to_sid(struct winbindd_domain *domain,
 139                             TALLOC_CTX *mem_ctx,
 140                             const char *name,
 141                             DOM_SID *sid,
 142                             enum SID_NAME_USE *type)
 143 {
 144         SAM_ACCOUNT *sam_account = NULL;
 145         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 146
 147         DEBUG(3,("pdb: name_to_sid name=%s (group support not implemented)\n", name));
 148
 149         if (NT_STATUS_IS_OK(pdb_init_sam(&sam_account))) {
 150                 if (!pdb_getsampwnam(sam_account, name)) {
 151                         result = NT_STATUS_UNSUCCESSFUL;
 152                 } else { /* it is a sam user */
 153                         sid_copy(sid, pdb_get_user_sid(sam_account));
 154                         *type = SID_NAME_USER;
 155                         result = NT_STATUS_OK;
 156                 }
 157         }
 158
 159         pdb_free_sam(&sam_account);
 160         return result;
 161 }
 162
 163 /*
 164   convert a domain SID to a user or group name
 165 */
 166 static NTSTATUS sid_to_name(struct winbindd_domain *domain,
 167                             TALLOC_CTX *mem_ctx,
 168                             DOM_SID *sid,
 169                             char **name,
 170                             enum SID_NAME_USE *type)
 171 {
 172         SAM_ACCOUNT *sam_account = NULL;
 173         NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
 174         uint32 id;
 175
 176         DEBUG(3,("pdb: sid_to_name sid=%s\n", sid_string_static(sid)));
 177
 178         if (NT_STATUS_IS_OK(sid_to_uid(sid, &id))) { /* this is a user */
 179
 180                 if (NT_STATUS_IS_ERR(result = pdb_init_sam(&sam_account))) {
 181                         return result;
 182                 }
 183
 184                 if (!pdb_getsampwsid(sam_account, sid)) {
 185                         pdb_free_sam(&sam_account);
 186                         return NT_STATUS_UNSUCCESSFUL;
 187                 }
 188
 189                 *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
 190                 if (!(*name)) {
 191                         DEBUG(0,("query_user: out of memory!\n"));
 192                         pdb_free_sam(&sam_account);
 193                         return NT_STATUS_NO_MEMORY;
 194                 }
 195
 196                 pdb_free_sam(&sam_account);
 197                 *type = SID_NAME_USER;
 198                 result = NT_STATUS_OK;
 199
 200         } else if (NT_STATUS_IS_OK(sid_to_gid(sid, &id))) { /* this is a group */
 201
 202                 DEBUG(3,("pdb: sid_to_name: group support not implemented\n"));
 203                 result = NT_STATUS_UNSUCCESSFUL;
 204         }
 205
 206         return result;
 207 }
 208
 209 /* Lookup user information from a rid or username. */
 210 static NTSTATUS query_user(struct winbindd_domain *domain,
 211                            TALLOC_CTX *mem_ctx,
 212                            DOM_SID *user_sid,
 213                            WINBIND_USERINFO *user_info)
 214 {
 215         SAM_ACCOUNT *sam_account = NULL;
 216         NTSTATUS result;
 217
 218         DEBUG(3,("pdb: query_user sid=%s\n", sid_string_static(user_sid)));
 219
 220         if (NT_STATUS_IS_ERR(result = pdb_init_sam(&sam_account))) {
 221                 return result;
 222         }
 223
 224         if (!pdb_getsampwsid(sam_account, user_sid)) {
 225                 pdb_free_sam(&sam_account);
 226                 return NT_STATUS_UNSUCCESSFUL;
 227         }
 228
 229         /* we return only nua accounts, or we will have duplicates */
 230         if (!idmap_check_sid_is_in_free_range(user_sid)) {
 231                 pdb_free_sam(&sam_account);
 232                 return NT_STATUS_UNSUCCESSFUL;
 233         }
 234
 235         user_info->user_sid = talloc(mem_ctx, sizeof(DOM_SID));
 236         user_info->group_sid = talloc(mem_ctx, sizeof(DOM_SID));
 237         if (!(user_info->user_sid) || !(user_info->group_sid)) {
 238                 DEBUG(0,("query_user: out of memory!\n"));
 239                 pdb_free_sam(&sam_account);
 240                 return NT_STATUS_NO_MEMORY;
 241         }
 242         sid_copy(user_info->user_sid, pdb_get_user_sid(sam_account));
 243         sid_copy(user_info->group_sid, pdb_get_group_sid(sam_account));
 244
 245         user_info->acct_name = talloc_strdup(mem_ctx, pdb_get_username(sam_account));
 246         user_info->full_name = talloc_strdup(mem_ctx, pdb_get_fullname(sam_account));
 247         if (!(user_info->acct_name) || !(user_info->full_name)) {
 248                 DEBUG(0,("query_user: out of memory!\n"));
 249                 pdb_free_sam(&sam_account);
 250                 return NT_STATUS_NO_MEMORY;
 251         }
 252
 253         pdb_free_sam(&sam_account);
 254         return NT_STATUS_OK;
 255 }
 256
 257 /* Lookup groups a user is a member of.  I wish Unix had a call like this! */
 258 static NTSTATUS lookup_usergroups(struct winbindd_domain *domain,
 259                                   TALLOC_CTX *mem_ctx,
 260                                   DOM_SID *user_sid,
 261                                   uint32 *num_groups, DOM_SID ***user_gids)
 262 {
 263         NTSTATUS result = NT_STATUS_OK;
 264
 265         DEBUG(3,("pdb: lookup_usergroups (group support not implemented)\n"));
 266
 267         num_groups = 0;
 268         user_gids = 0;
 269
 270         return result;
 271 }
 272
 273
 274 /* Lookup group membership given a rid.   */
 275 static NTSTATUS lookup_groupmem(struct winbindd_domain *domain,
 276                                 TALLOC_CTX *mem_ctx,
 277                                 DOM_SID *group_sid, uint32 *num_names,
 278                                 DOM_SID ***sid_mem, char ***names,
 279                                 uint32 **name_types)
 280 {
 281         NTSTATUS result = NT_STATUS_NOT_IMPLEMENTED;
 282
 283         DEBUG(3,("pdb: lookup_groupmem (group support not implemented)\n"));
 284
 285         num_names = 0;
 286         sid_mem = 0;
 287         names = 0;
 288         name_types = 0;
 289
 290         return result;
 291 }
 292
 293 /* find the sequence number for a domain */
 294 static NTSTATUS sequence_number(struct winbindd_domain *domain, uint32 *seq)
 295 {
 296         /* FIXME: we fake up the seq_num untill our passdb support it */
 297         static uint32 seq_num;
 298
 299         DEBUG(3,("pdb: sequence_number\n"));
 300
 301         *seq = seq_num++;
 302
 303         return NT_STATUS_OK;
 304 }
 305
 306 /* get a list of trusted domains */
 307 static NTSTATUS trusted_domains(struct winbindd_domain *domain,
 308                                 TALLOC_CTX *mem_ctx,
 309                                 uint32 *num_domains,
 310                                 char ***names,
 311                                 char ***alt_names,
 312                                 DOM_SID **dom_sids)
 313 {
 314         NTSTATUS result = NT_STATUS_NOT_IMPLEMENTED;
 315
 316         DEBUG(3,("pdb: trusted_domains (todo!)\n"));
 317
 318         return result;
 319 }
 320
 321 /* find the domain sid for a domain */
 322 static NTSTATUS domain_sid(struct winbindd_domain *domain, DOM_SID *sid)
 323 {
 324         DEBUG(3,("pdb: domain_sid\n"));
 325
 326         if (strcmp(domain->name, lp_workgroup())) {
 327                 return NT_STATUS_INVALID_PARAMETER;
 328         } else {
 329                 sid_copy(sid, get_global_sam_sid());
 330                 return NT_STATUS_OK;
 331         }
 332 }
 333
 334 /* find alternate names list for the domain
 335  * should we look for netbios aliases??
 336                                 SSS     */
 337 static NTSTATUS alternate_name(struct winbindd_domain *domain)
 338 {
 339         DEBUG(3,("pdb: alternate_name\n"));
 340
 341         return NT_STATUS_OK;
 342 }
 343
 344
 345 /* the rpc backend methods are exposed via this structure */
 346 struct winbindd_methods passdb_methods = {
 347         False,
 348         query_user_list,
 349         enum_dom_groups,
 350         enum_local_groups,
 351         name_to_sid,
 352         sid_to_name,
 353         query_user,
 354         lookup_usergroups,
 355         lookup_groupmem,
 356         sequence_number,
 357         trusted_domains,
 358         domain_sid,
 359         alternate_name
 360 };