1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
Unix SMB/CIFS implementation.
ID Mapping Cache
based on gencache
Copyright (C) Simo Sorce 2006
Copyright (C) Rafal Szczesniak 2002
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.*/
#include "includes.h"
#include "winbindd.h"
bool idmap_cache_find_sid2uid(const struct dom_sid *sid, uid_t *puid,
bool *expired)
{
fstring sidstr;
char *key;
char *value;
char *endptr;
time_t timeout;
uid_t uid;
bool ret;
key = talloc_asprintf(talloc_tos(), "IDMAP/SID2UID/%s",
sid_to_fstring(sidstr, sid));
if (key == NULL) {
return false;
}
ret = gencache_get(key, &value, &timeout);
TALLOC_FREE(key);
if (!ret) {
return false;
}
uid = strtol(value, &endptr, 10);
ret = (*endptr == '\0');
SAFE_FREE(value);
if (ret) {
*puid = uid;
*expired = (timeout <= time(NULL));
}
return ret;
}
bool idmap_cache_find_uid2sid(uid_t uid, struct dom_sid *sid, bool *expired)
{
char *key;
char *value;
time_t timeout;
bool ret;
key = talloc_asprintf(talloc_tos(), "IDMAP/UID2SID/%d", (int)uid);
if (key == NULL) {
return false;
}
ret = gencache_get(key, &value, &timeout);
TALLOC_FREE(key);
if (!ret) {
return false;
}
ZERO_STRUCTP(sid);
ret = string_to_sid(sid, value);
SAFE_FREE(value);
if (ret) {
*expired = (timeout <= time(NULL));
}
return ret;
}
void idmap_cache_set_sid2uid(const struct dom_sid *sid, uid_t uid)
{
time_t now = time(NULL);
time_t timeout;
fstring sidstr, key, value;
if (!is_null_sid(sid)) {
fstr_sprintf(key, "IDMAP/SID2UID/%s",
sid_to_fstring(sidstr, sid));
fstr_sprintf(value, "%d", (int)uid);
timeout = (uid == -1)
? lp_idmap_negative_cache_time()
: lp_idmap_cache_time();
gencache_set(key, value, now + timeout);
}
if (uid != -1) {
fstr_sprintf(key, "IDMAP/UID2SID/%d", (int)uid);
sid_to_fstring(value, sid);
timeout = is_null_sid(sid)
? lp_idmap_negative_cache_time()
: lp_idmap_cache_time();
gencache_set(key, value, now + timeout);
}
}
bool idmap_cache_find_sid2gid(const struct dom_sid *sid, gid_t *pgid,
bool *expired)
{
fstring sidstr;
char *key;
char *value;
char *endptr;
time_t timeout;
gid_t gid;
bool ret;
key = talloc_asprintf(talloc_tos(), "IDMAP/SID2GID/%s",
sid_to_fstring(sidstr, sid));
if (key == NULL) {
return false;
}
ret = gencache_get(key, &value, &timeout);
TALLOC_FREE(key);
if (!ret) {
return false;
}
gid = strtol(value, &endptr, 10);
ret = (*endptr == '\0');
SAFE_FREE(value);
if (ret) {
*pgid = gid;
*expired = (timeout <= time(NULL));
}
return ret;
}
bool idmap_cache_find_gid2sid(gid_t gid, struct dom_sid *sid, bool *expired)
{
char *key;
char *value;
time_t timeout;
bool ret;
key = talloc_asprintf(talloc_tos(), "IDMAP/GID2SID/%d", (int)gid);
if (key == NULL) {
return false;
}
ret = gencache_get(key, &value, &timeout);
TALLOC_FREE(key);
if (!ret) {
return false;
}
ZERO_STRUCTP(sid);
ret = string_to_sid(sid, value);
SAFE_FREE(value);
if (ret) {
*expired = (timeout <= time(NULL));
}
return ret;
}
void idmap_cache_set_sid2gid(const struct dom_sid *sid, gid_t gid)
{
time_t now = time(NULL);
time_t timeout;
fstring sidstr, key, value;
if (!is_null_sid(sid)) {
fstr_sprintf(key, "IDMAP/SID2GID/%s",
sid_to_fstring(sidstr, sid));
fstr_sprintf(value, "%d", (int)gid);
timeout = (gid == -1)
? lp_idmap_negative_cache_time()
: lp_idmap_cache_time();
gencache_set(key, value, now + timeout);
}
if (gid != -1) {
fstr_sprintf(key, "IDMAP/GID2SID/%d", (int)gid);
sid_to_fstring(value, sid);
timeout = is_null_sid(sid)
? lp_idmap_negative_cache_time()
: lp_idmap_cache_time();
gencache_set(key, value, now + timeout);
}
}
|
