2 * Samba Unix/Linux SMB client library
4 * Copyright (C) Gregor Beck 2011
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #include "smbd/globals.h"
22 #include "smbd/smbd.h"
23 #include "../libcli/security/dom_sid.h"
24 #include "idmap_cache.h"
25 #include "passdb/lookup_sid.h"
28 #include "lib/id_cache.h"
30 static bool uid_in_use(const struct user_struct *user, uid_t uid)
33 if (user->session_info &&
34 (user->session_info->unix_token->uid == uid)) {
42 static bool gid_in_use(const struct user_struct *user, gid_t gid)
45 if (user->session_info != NULL) {
47 struct security_unix_token *utok;
49 utok = user->session_info->unix_token;
50 if (utok->gid == gid) {
53 for(i=0; i<utok->ngroups; i++) {
54 if (utok->groups[i] == gid) {
64 static bool sid_in_use(const struct user_struct *user,
65 const struct dom_sid *psid)
69 if (sid_to_gid(psid, &gid)) {
70 return gid_in_use(user, gid);
71 } else if (sid_to_uid(psid, &uid)) {
72 return uid_in_use(user, uid);
77 static bool id_in_use(const struct user_struct *user,
78 const struct id_cache_ref *id)
82 return uid_in_use(user, id->id.uid);
84 return gid_in_use(user, id->id.gid);
86 return sid_in_use(user, &id->id.sid);
93 static void id_cache_kill(struct messaging_context *msg_ctx,
96 struct server_id server_id,
99 const char *msg = (data && data->data)
100 ? (const char *)data->data : "<NULL>";
101 struct user_struct *validated_users =
102 smbd_server_conn->smb1.sessions.validated_users;
103 struct id_cache_ref id;
105 if (!id_cache_ref_parse(msg, &id)) {
106 DEBUG(0, ("Invalid ?ID: %s\n", msg));
110 if (id_in_use(validated_users, &id)) {
111 exit_server_cleanly(msg);
115 void id_cache_register_kill_msg(struct messaging_context *ctx)
117 messaging_register(ctx, NULL, ID_CACHE_KILL, id_cache_kill);