2 Unix SMB/CIFS implementation.
3 struct samu local cache for
4 Copyright (C) Jim McDonough (jmcd@us.ibm.com) 2004.
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 "system/filesys.h"
25 #define DBGC_CLASS DBGC_PASSDB
27 #define LOGIN_CACHE_FILE "login_cache.tdb"
29 #define SAM_CACHE_FORMAT "dwwd"
31 static TDB_CONTEXT *cache;
33 bool login_cache_init(void)
35 char* cache_fname = NULL;
37 /* skip file open if it's already opened */
38 if (cache) return True;
40 cache_fname = cache_path(LOGIN_CACHE_FILE);
41 if (cache_fname == NULL) {
42 DEBUG(0, ("Filename allocation failed.\n"));
46 DEBUG(5, ("Opening cache file at %s\n", cache_fname));
48 cache = tdb_open_log(cache_fname, 0, TDB_DEFAULT,
49 O_RDWR|O_CREAT, 0644);
52 DEBUG(5, ("Attempt to open %s failed.\n", cache_fname));
54 TALLOC_FREE(cache_fname);
56 return (cache ? True : False);
59 bool login_cache_shutdown(void)
61 /* tdb_close routine returns -1 on error */
62 if (!cache) return False;
63 DEBUG(5, ("Closing cache file\n"));
64 return tdb_close(cache) != -1;
67 /* if we can't read the cache, oh well, no need to return anything */
68 bool login_cache_read(struct samu *sampass, struct login_cache *entry)
72 uint32_t entry_timestamp = 0, bad_password_time = 0;
75 if (!login_cache_init()) {
79 if (pdb_get_nt_username(sampass) == NULL) {
83 keystr = SMB_STRDUP(pdb_get_nt_username(sampass));
84 if (!keystr || !keystr[0]) {
89 DEBUG(7, ("Looking up login cache for user %s\n",
91 databuf = tdb_fetch_bystring(cache, keystr);
96 if (tdb_unpack (databuf.dptr, databuf.dsize, SAM_CACHE_FORMAT,
99 &entry->bad_password_count,
100 &bad_password_time) == -1) {
101 DEBUG(7, ("No cache entry found\n"));
102 SAFE_FREE(databuf.dptr);
107 * Deal with 32-bit acct_ctrl. In the tdb we only store 16-bit
108 * ("w" in SAM_CACHE_FORMAT). Fixes bug 7253.
110 entry->acct_ctrl = acct_ctrl;
112 /* Deal with possible 64-bit time_t. */
113 entry->entry_timestamp = (time_t)entry_timestamp;
114 entry->bad_password_time = (time_t)bad_password_time;
116 SAFE_FREE(databuf.dptr);
118 DEBUG(5, ("Found login cache entry: timestamp %12u, flags 0x%x, count %d, time %12u\n",
119 (unsigned int)entry->entry_timestamp, entry->acct_ctrl,
120 entry->bad_password_count, (unsigned int)entry->bad_password_time));
124 bool login_cache_write(const struct samu *sampass,
125 const struct login_cache *entry)
130 uint32_t entry_timestamp;
131 uint32_t bad_password_time = entry->bad_password_time;
133 if (!login_cache_init())
136 if (pdb_get_nt_username(sampass) == NULL) {
140 keystr = SMB_STRDUP(pdb_get_nt_username(sampass));
141 if (!keystr || !keystr[0]) {
146 entry_timestamp = (uint32_t)time(NULL);
149 tdb_pack(NULL, 0, SAM_CACHE_FORMAT,
152 entry->bad_password_count,
154 databuf.dptr = SMB_MALLOC_ARRAY(uint8, databuf.dsize);
160 if (tdb_pack(databuf.dptr, databuf.dsize, SAM_CACHE_FORMAT,
163 entry->bad_password_count,
167 SAFE_FREE(databuf.dptr);
171 ret = tdb_store_bystring(cache, keystr, databuf, 0);
173 SAFE_FREE(databuf.dptr);
177 bool login_cache_delentry(const struct samu *sampass)
182 if (!login_cache_init())
185 if (pdb_get_nt_username(sampass) == NULL) {
189 keystr = SMB_STRDUP(pdb_get_nt_username(sampass));
190 if (!keystr || !keystr[0]) {
195 DEBUG(9, ("About to delete entry for %s\n", keystr));
196 ret = tdb_delete_bystring(cache, keystr);
197 DEBUG(9, ("tdb_delete returned %d\n", ret));