source/nsswitch/winbindd_sid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind daemon - sid related functions
   5
   6    Copyright (C) Tim Potter 2000
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "winbindd.h"
  24 #include "sids.h"
  25
  26 /* Convert a string  */
  27
  28 enum winbindd_result winbindd_lookupsid(struct winbindd_cli_state *state)
  29 {
  30         extern DOM_SID global_sid_Builtin;
  31         enum SID_NAME_USE type;
  32         DOM_SID sid, tmp_sid;
  33         uint32 rid;
  34         fstring name;
  35         fstring dom_name;
  36
  37         DEBUG(3, ("[%5d]: lookupsid %s\n", state->pid,
  38                   state->request.data.sid));
  39
  40         /* Lookup sid from PDC using lsa_lookup_sids() */
  41
  42         if (!string_to_sid(&sid, state->request.data.sid)) {
  43                 DEBUG(5, ("%s not a SID\n", state->request.data.sid));
  44                 return WINBINDD_ERROR;
  45         }
  46
  47         /* Don't look up BUILTIN sids */
  48
  49         sid_copy(&tmp_sid, &sid);
  50         sid_split_rid(&tmp_sid, &rid);
  51
  52         if (sid_equal(&tmp_sid, &global_sid_Builtin)) {
  53                 return WINBINDD_ERROR;
  54         }
  55
  56         /* Lookup the sid */
  57
  58         if (!winbindd_lookup_name_by_sid(&sid, dom_name, name, &type)) {
  59                 return WINBINDD_ERROR;
  60         }
  61
  62         fstrcpy(state->response.data.name.dom_name, dom_name);
  63         fstrcpy(state->response.data.name.name, name);
  64
  65         state->response.data.name.type = type;
  66
  67         return WINBINDD_OK;
  68 }
  69
  70 /* Convert a sid to a string */
  71
  72 enum winbindd_result winbindd_lookupname(struct winbindd_cli_state *state)
  73 {
  74         enum SID_NAME_USE type;
  75         fstring sid_str;
  76         char *name_domain, *name_user;
  77         DOM_SID sid;
  78         struct winbindd_domain *domain;
  79
  80         DEBUG(3, ("[%5d]: lookupname %s%s%s\n", state->pid,
  81                   state->request.data.name.dom_name,
  82                   lp_winbind_separator(),
  83                   state->request.data.name.name));
  84
  85         name_domain = state->request.data.name.dom_name;
  86         name_user = state->request.data.name.name;
  87
  88         if ((domain = find_domain_from_name(name_domain)) == NULL) {
  89                 DEBUG(0, ("could not find domain entry for domain %s\n",
  90                           name_domain));
  91                 return WINBINDD_ERROR;
  92         }
  93
  94         /* Lookup name from PDC using lsa_lookup_names() */
  95         if (!winbindd_lookup_sid_by_name(domain, name_user, &sid, &type)) {
  96                 return WINBINDD_ERROR;
  97         }
  98
  99         sid_to_string(sid_str, &sid);
 100         fstrcpy(state->response.data.sid.sid, sid_str);
 101         state->response.data.sid.type = type;
 102
 103         return WINBINDD_OK;
 104 }
 105
 106 /* Convert a sid to a uid.  We assume we only have one rid attached to the
 107    sid. */
 108
 109 enum winbindd_result winbindd_sid_to_uid(struct winbindd_cli_state *state)
 110 {
 111         DOM_SID sid;
 112
 113         DEBUG(3, ("[%5d]: sid to uid %s\n", state->pid,
 114                   state->request.data.sid));
 115
 116         /* Split sid into domain sid and user rid */
 117         if (!string_to_sid(&sid, state->request.data.sid)) {
 118                 DEBUG(1, ("Could not get convert sid %s from string\n",
 119                           state->request.data.sid));
 120                 return WINBINDD_ERROR;
 121         }
 122
 123         /* Find uid for this sid and return it */
 124         if (!winbindd_idmap_get_uid_from_sid(&sid, &state->response.data.uid)) {
 125                 DEBUG(1, ("Could not get uid for sid %s\n",
 126                           state->request.data.sid));
 127                 return WINBINDD_ERROR;
 128         }
 129
 130         return WINBINDD_OK;
 131 }
 132
 133 /* Convert a sid to a gid.  We assume we only have one rid attached to the
 134    sid.*/
 135
 136 enum winbindd_result winbindd_sid_to_gid(struct winbindd_cli_state *state)
 137 {
 138         DOM_SID sid;
 139
 140         DEBUG(3, ("[%5d]: sid to gid %s\n", state->pid,
 141                   state->request.data.sid));
 142
 143         if (!string_to_sid(&sid, state->request.data.sid)) {
 144                 DEBUG(1, ("Could not cvt string to sid %s\n",
 145                           state->request.data.sid));
 146                 return WINBINDD_ERROR;
 147         }
 148
 149         /* Find gid for this sid and return it */
 150         if (!winbindd_idmap_get_gid_from_sid(&sid, &state->response.data.gid)) {
 151                 DEBUG(1, ("Could not get gid for sid %s\n",
 152                           state->request.data.sid));
 153                 return WINBINDD_ERROR;
 154         }
 155
 156         return WINBINDD_OK;
 157 }
 158
 159 /* Convert a uid to a sid */
 160
 161 enum winbindd_result winbindd_uid_to_sid(struct winbindd_cli_state *state)
 162 {
 163         DOM_SID sid;
 164
 165         /* Bug out if the uid isn't in the winbind range */
 166
 167         if ((state->request.data.uid < server_state.uid_low ) ||
 168             (state->request.data.uid > server_state.uid_high)) {
 169                 return WINBINDD_ERROR;
 170         }
 171
 172         DEBUG(3, ("[%5d]: uid to sid %d\n", state->pid,
 173                   state->request.data.uid));
 174
 175         /* Lookup rid for this uid */
 176         if (!winbindd_idmap_get_sid_from_uid(state->request.data.uid, &sid)) {
 177                 DEBUG(1, ("Could not convert uid %d to rid\n",
 178                           state->request.data.uid));
 179                 return WINBINDD_ERROR;
 180         }
 181
 182         sid_to_string(state->response.data.sid.sid, &sid);
 183         state->response.data.sid.type = SID_NAME_USER;
 184
 185         return WINBINDD_OK;
 186 }
 187
 188 /* Convert a gid to a sid */
 189
 190 enum winbindd_result winbindd_gid_to_sid(struct winbindd_cli_state *state)
 191 {
 192         DOM_SID sid;
 193
 194         /* Bug out if the gid isn't in the winbind range */
 195
 196         if ((state->request.data.gid < server_state.gid_low) ||
 197             (state->request.data.gid > server_state.gid_high)) {
 198                 return WINBINDD_ERROR;
 199         }
 200
 201         DEBUG(3, ("[%5d]: gid to sid %d\n", state->pid,
 202                   state->request.data.gid));
 203
 204         /* Lookup sid for this uid */
 205         if (!winbindd_idmap_get_sid_from_gid(state->request.data.gid, &sid)) {
 206                 DEBUG(1, ("Could not convert gid %d to sid\n",
 207                           state->request.data.gid));
 208                 return WINBINDD_ERROR;
 209         }
 210
 211         /* Construct sid and return it */
 212         sid_to_string(state->response.data.sid.sid, &sid);
 213         state->response.data.sid.type = SID_NAME_DOM_GRP;
 214
 215         return WINBINDD_OK;
 216 }