source: branches/samba-3.5.x/source3/lib/ldb/nssldb/ldb-pwd.c

Last change on this file was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 4.3 KB
Line 
1/*
2 LDB nsswitch module
3
4 Copyright (C) Simo Sorce 2006
5
6 This library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 3 of the License, or (at your option) any later version.
10
11 This library 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 GNU
14 Library General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18*/
19
20#include "ldb-nss.h"
21
22extern struct _ldb_nss_context *_ldb_nss_ctx;
23
24const char *_ldb_nss_pw_attrs[] = {
25 "uid",
26 "userPassword",
27 "uidNumber",
28 "gidNumber",
29 "gecos",
30 "homeDirectory",
31 "loginShell",
32 NULL
33};
34
35NSS_STATUS _nss_ldb_setpwent(void)
36{
37 int ret;
38 ret = _ldb_nss_init();
39 if (ret != NSS_STATUS_SUCCESS) {
40 return ret;
41 }
42
43 _ldb_nss_ctx->pw_cur = 0;
44 if (_ldb_nss_ctx->pw_res != NULL) {
45 talloc_free(_ldb_nss_ctx->pw_res);
46 _ldb_nss_ctx->pw_res = NULL;
47 }
48
49 ret = ldb_search(_ldb_nss_ctx->ldb, _ldb_nss_ctx->ldb,
50 &_ldb_nss_ctx->pw_res,
51 _ldb_nss_ctx->base,
52 LDB_SCOPE_SUBTREE,
53 _ldb_nss_pw_attrs,
54 _LDB_NSS_PWENT_FILTER);
55 if (ret != LDB_SUCCESS) {
56 return NSS_STATUS_UNAVAIL;
57 }
58
59 return NSS_STATUS_SUCCESS;
60}
61
62NSS_STATUS _nss_ldb_endpwent(void)
63{
64 int ret;
65
66 ret = _ldb_nss_init();
67 if (ret != NSS_STATUS_SUCCESS) {
68 return ret;
69 }
70
71 _ldb_nss_ctx->pw_cur = 0;
72 if (_ldb_nss_ctx->pw_res) {
73 talloc_free(_ldb_nss_ctx->pw_res);
74 _ldb_nss_ctx->pw_res = NULL;
75 }
76
77 return NSS_STATUS_SUCCESS;
78}
79
80NSS_STATUS _nss_ldb_getpwent_r(struct passwd *result_buf,
81 char *buffer,
82 int buflen,
83 int *errnop)
84{
85 int ret;
86
87 ret = _ldb_nss_init();
88 if (ret != NSS_STATUS_SUCCESS) {
89 return ret;
90 }
91
92 *errnop = 0;
93
94 if (_ldb_nss_ctx->pw_cur >= _ldb_nss_ctx->pw_res->count) {
95 /* already returned all entries */
96 return NSS_STATUS_NOTFOUND;
97 }
98
99 ret = _ldb_nss_fill_passwd(result_buf,
100 buffer,
101 buflen,
102 errnop,
103 _ldb_nss_ctx->pw_res->msgs[_ldb_nss_ctx->pw_cur]);
104 if (ret != NSS_STATUS_SUCCESS) {
105 return ret;
106 }
107
108 _ldb_nss_ctx->pw_cur++;
109
110 return NSS_STATUS_SUCCESS;
111}
112
113NSS_STATUS _nss_ldb_getpwuid_r(uid_t uid, struct passwd *result_buf, char *buffer, size_t buflen, int *errnop)
114{
115 int ret;
116 struct ldb_result *res;
117
118 if (uid == 0) { /* we don't serve root uid by policy */
119 *errnop = errno = ENOENT;
120 return NSS_STATUS_NOTFOUND;
121 }
122
123 ret = _ldb_nss_init();
124 if (ret != NSS_STATUS_SUCCESS) {
125 return ret;
126 }
127
128 /* search the entry */
129 ret = ldb_search(_ldb_nss_ctx->ldb, _ldb_nss_ctx->ldb, &res,
130 _ldb_nss_ctx->base,
131 LDB_SCOPE_SUBTREE,
132 _ldb_nss_pw_attrs,
133 _LDB_NSS_PWUID_FILTER, uid);
134 if (ret != LDB_SUCCESS) {
135 /* this is a fatal error */
136 *errnop = errno = ENOENT;
137 ret = NSS_STATUS_UNAVAIL;
138 goto done;
139 }
140
141 /* if none found return */
142 if (res->count == 0) {
143 *errnop = errno = ENOENT;
144 ret = NSS_STATUS_NOTFOUND;
145 goto done;
146 }
147
148 if (res->count != 1) {
149 /* this is a fatal error */
150 *errnop = errno = ENOENT;
151 ret = NSS_STATUS_UNAVAIL;
152 goto done;
153 }
154
155 /* fill in the passwd struct */
156 ret = _ldb_nss_fill_passwd(result_buf,
157 buffer,
158 buflen,
159 errnop,
160 res->msgs[0]);
161
162done:
163 talloc_free(res);
164 return ret;
165}
166
167NSS_STATUS _nss_ldb_getpwnam_r(const char *name, struct passwd *result_buf, char *buffer, size_t buflen, int *errnop)
168{
169 int ret;
170 struct ldb_result *res;
171
172 ret = _ldb_nss_init();
173 if (ret != NSS_STATUS_SUCCESS) {
174 return ret;
175 }
176
177 /* search the entry */
178 ret = ldb_search(_ldb_nss_ctx->ldb, _ldb_nss_ctx->ldb, &res,
179 _ldb_nss_ctx->base,
180 LDB_SCOPE_SUBTREE,
181 _ldb_nss_pw_attrs,
182 _LDB_NSS_PWNAM_FILTER, name);
183 if (ret != LDB_SUCCESS) {
184 /* this is a fatal error */
185 *errnop = errno = ENOENT;
186 ret = NSS_STATUS_UNAVAIL;
187 goto done;
188 }
189
190 /* if none found return */
191 if (res->count == 0) {
192 *errnop = errno = ENOENT;
193 ret = NSS_STATUS_NOTFOUND;
194 goto done;
195 }
196
197 if (res->count != 1) {
198 /* this is a fatal error */
199 *errnop = errno = ENOENT;
200 ret = NSS_STATUS_UNAVAIL;
201 goto done;
202 }
203
204 /* fill in the passwd struct */
205 ret = _ldb_nss_fill_passwd(result_buf,
206 buffer,
207 buflen,
208 errnop,
209 res->msgs[0]);
210
211done:
212 talloc_free(res);
213 return ret;
214}
215
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