2 Unix SMB/CIFS implementation.
3 Net_sam_logon info3 helpers
4 Copyright (C) Alexander Bokovoy 2002.
5 Copyright (C) Andrew Bartlett 2002.
6 Copyright (C) Gerald Carter 2003.
7 Copyright (C) Tim Potter 2003.
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.
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.
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.
26 #define NETSAMLOGON_TDB "netsamlogon_cache.tdb"
28 static TDB_CONTEXT *netsamlogon_tdb = NULL;
30 /***********************************************************************
32 ***********************************************************************/
34 BOOL netsamlogon_cache_init(void)
36 if (!netsamlogon_tdb) {
37 netsamlogon_tdb = tdb_open_log(lock_path(NETSAMLOGON_TDB), 0,
38 TDB_DEFAULT, O_RDWR | O_CREAT, 0600);
41 return (netsamlogon_tdb != NULL);
45 /***********************************************************************
46 Shutdown samlogon_cache database
47 ***********************************************************************/
49 BOOL netsamlogon_cache_shutdown(void)
52 return (tdb_close(netsamlogon_tdb) == 0);
57 /***********************************************************************
58 Clear cache getpwnam and getgroups entries from the winbindd cache
59 ***********************************************************************/
60 void netsamlogon_clear_cached_user(TDB_CONTEXT *tdb, NET_USER_INFO_3 *user)
64 fstring key_str, sid_string;
66 /* We may need to call this function from smbd which will not have
67 winbindd_cache.tdb open. Open the tdb if a NULL is passed. */
70 tdb = tdb_open_log(lock_path("winbindd_cache.tdb"),
71 WINBINDD_CACHE_TDB_DEFAULT_HASH_SIZE,
72 TDB_DEFAULT, O_RDWR, 0600);
74 DEBUG(5, ("netsamlogon_clear_cached_user: failed to open cache\n"));
80 sid_copy(&sid, &user->dom_sid.sid);
81 sid_append_rid(&sid, user->user_rid);
83 /* Clear U/SID cache entry */
85 fstr_sprintf(key_str, "U/%s", sid_to_string(sid_string, &sid));
87 DEBUG(10, ("netsamlogon_clear_cached_user: clearing %s\n", key_str));
89 tdb_delete(tdb, string_tdb_data(key_str));
91 /* Clear UG/SID cache entry */
93 fstr_sprintf(key_str, "UG/%s", sid_to_string(sid_string, &sid));
95 DEBUG(10, ("netsamlogon_clear_cached_user: clearing %s\n", key_str));
97 tdb_delete(tdb, string_tdb_data(key_str));
103 /***********************************************************************
104 Store a NET_USER_INFO_3 structure in a tdb for later user
105 username should be in UTF-8 format
106 ***********************************************************************/
108 BOOL netsamlogon_cache_store( const char *username, NET_USER_INFO_3 *user )
115 time_t t = time(NULL);
119 if (!netsamlogon_cache_init()) {
120 DEBUG(0,("netsamlogon_cache_store: cannot open %s for write!\n", NETSAMLOGON_TDB));
124 sid_copy( &user_sid, &user->dom_sid.sid );
125 sid_append_rid( &user_sid, user->user_rid );
127 /* Prepare key as DOMAIN-SID/USER-RID string */
128 slprintf(keystr, sizeof(keystr), "%s", sid_string_static(&user_sid));
130 DEBUG(10,("netsamlogon_cache_store: SID [%s]\n", keystr));
132 /* only Samba fills in the username, not sure why NT doesn't */
133 /* so we fill it in since winbindd_getpwnam() makes use of it */
135 if ( !user->uni_user_name.buffer ) {
136 init_unistr2( &user->uni_user_name, username, UNI_STR_TERMINATE );
137 init_uni_hdr( &user->hdr_user_name, &user->uni_user_name );
142 if ( !(mem_ctx = TALLOC_P( NULL, int )) ) {
143 DEBUG(0,("netsamlogon_cache_store: talloc() failed!\n"));
147 prs_init( &ps, RPC_MAX_PDU_FRAG_LEN, mem_ctx, MARSHALL);
150 uint32 ts = (uint32)t;
151 if ( !prs_uint32( "timestamp", &ps, 0, &ts ) )
155 if ( net_io_user_info3("", user, &ps, 0, 3, 0) )
157 data.dsize = prs_offset( &ps );
158 data.dptr = (uint8 *)prs_data_p( &ps );
160 if (tdb_store_bystring(netsamlogon_tdb, keystr, data, TDB_REPLACE) != -1)
166 TALLOC_FREE( mem_ctx );
171 /***********************************************************************
172 Retrieves a NET_USER_INFO_3 structure from a tdb. Caller must
173 free the user_info struct (malloc()'d memory)
174 ***********************************************************************/
176 NET_USER_INFO_3* netsamlogon_cache_get( TALLOC_CTX *mem_ctx, const DOM_SID *user_sid)
178 NET_USER_INFO_3 *user = NULL;
184 if (!netsamlogon_cache_init()) {
185 DEBUG(0,("netsamlogon_cache_get: cannot open %s for write!\n", NETSAMLOGON_TDB));
189 /* Prepare key as DOMAIN-SID/USER-RID string */
190 slprintf(keystr, sizeof(keystr), "%s", sid_string_static(user_sid));
191 DEBUG(10,("netsamlogon_cache_get: SID [%s]\n", keystr));
192 data = tdb_fetch_bystring( netsamlogon_tdb, keystr );
196 user = TALLOC_ZERO_P(mem_ctx, NET_USER_INFO_3);
201 prs_init( &ps, 0, mem_ctx, UNMARSHALL );
202 prs_give_memory( &ps, (char *)data.dptr, data.dsize, True );
204 if ( !prs_uint32( "timestamp", &ps, 0, &t ) ) {
210 if ( !net_io_user_info3("", user, &ps, 0, 3, 0) ) {
216 #if 0 /* The netsamlogon cache needs to hang around. Something about
217 this feels wrong, but it is the only way we can get all of the
218 groups. The old universal groups cache didn't expire either.
221 time_t now = time(NULL);
224 /* is the entry expired? */
227 if ( (time_diff < 0 ) || (time_diff > lp_winbind_cache_time()) ) {
228 DEBUG(10,("netsamlogon_cache_get: cache entry expired \n"));
229 tdb_delete( netsamlogon_tdb, key );
238 BOOL netsamlogon_cache_have(const DOM_SID *user_sid)
240 TALLOC_CTX *mem_ctx = talloc_init("netsamlogon_cache_have");
241 NET_USER_INFO_3 *user = NULL;
247 user = netsamlogon_cache_get(mem_ctx, user_sid);
249 result = (user != NULL);
251 talloc_destroy(mem_ctx);