source: branches/samba-3.5.x/source4/dsdb/samdb/samdb.c

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

Samba 3.5.0: Initial import
File size: 5.5 KB
Line 
1/*
2 Unix SMB/CIFS implementation.
3
4 interface functions for the sam database
5
6 Copyright (C) Andrew Tridgell 2004
7 Copyright (C) Volker Lendecke 2004
8 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22*/
23
24#include "includes.h"
25#include "librpc/gen_ndr/ndr_netlogon.h"
26#include "librpc/gen_ndr/ndr_misc.h"
27#include "librpc/gen_ndr/ndr_security.h"
28#include "lib/events/events.h"
29#include "lib/ldb/include/ldb.h"
30#include "lib/ldb/include/ldb_errors.h"
31#include "libcli/security/security.h"
32#include "libcli/auth/libcli_auth.h"
33#include "libcli/ldap/ldap_ndr.h"
34#include "system/time.h"
35#include "system/filesys.h"
36#include "ldb_wrap.h"
37#include "../lib/util/util_ldb.h"
38#include "dsdb/samdb/samdb.h"
39#include "../libds/common/flags.h"
40#include "param/param.h"
41#include "lib/events/events.h"
42#include "auth/credentials/credentials.h"
43#include "param/secrets.h"
44
45char *samdb_relative_path(struct ldb_context *ldb,
46 TALLOC_CTX *mem_ctx,
47 const char *name)
48{
49 const char *base_url =
50 (const char *)ldb_get_opaque(ldb, "ldb_url");
51 char *path, *p, *full_name;
52 if (name == NULL) {
53 return NULL;
54 }
55 if (name[0] == 0 || name[0] == '/' || strstr(name, ":/")) {
56 return talloc_strdup(mem_ctx, name);
57 }
58 path = talloc_strdup(mem_ctx, base_url);
59 if (path == NULL) {
60 return NULL;
61 }
62 if ( (p = strrchr(path, '/')) != NULL) {
63 p[0] = '\0';
64 full_name = talloc_asprintf(mem_ctx, "%s/%s", path, name);
65 } else {
66 full_name = talloc_asprintf(mem_ctx, "./%s", name);
67 }
68 talloc_free(path);
69 return full_name;
70}
71
72struct cli_credentials *samdb_credentials(TALLOC_CTX *mem_ctx,
73 struct tevent_context *event_ctx,
74 struct loadparm_context *lp_ctx)
75{
76 struct cli_credentials *cred = cli_credentials_init(mem_ctx);
77 if (!cred) {
78 return NULL;
79 }
80 cli_credentials_set_conf(cred, lp_ctx);
81
82 /* We don't want to use krb5 to talk to our samdb - recursion
83 * here would be bad, and this account isn't in the KDC
84 * anyway */
85 cli_credentials_set_kerberos_state(cred, CRED_DONT_USE_KERBEROS);
86
87 if (!NT_STATUS_IS_OK(cli_credentials_set_secrets(cred, event_ctx, lp_ctx, NULL, NULL,
88 SECRETS_LDAP_FILTER))) {
89 /* Perfectly OK - if not against an LDAP backend */
90 return NULL;
91 }
92 return cred;
93}
94
95/*
96 connect to the SAM database
97 return an opaque context pointer on success, or NULL on failure
98 */
99struct ldb_context *samdb_connect(TALLOC_CTX *mem_ctx,
100 struct tevent_context *ev_ctx,
101 struct loadparm_context *lp_ctx,
102 struct auth_session_info *session_info)
103{
104 struct ldb_context *ldb;
105 ldb = ldb_wrap_connect(mem_ctx, ev_ctx, lp_ctx,
106 lp_sam_url(lp_ctx), session_info,
107 samdb_credentials(mem_ctx, ev_ctx, lp_ctx),
108 0, NULL);
109 if (!ldb) {
110 return NULL;
111 }
112 dsdb_make_schema_global(ldb);
113 return ldb;
114}
115
116
117/****************************************************************************
118 Create the SID list for this user.
119****************************************************************************/
120NTSTATUS security_token_create(TALLOC_CTX *mem_ctx,
121 struct tevent_context *ev_ctx,
122 struct loadparm_context *lp_ctx,
123 struct dom_sid *user_sid,
124 struct dom_sid *group_sid,
125 int n_groupSIDs,
126 struct dom_sid **groupSIDs,
127 bool is_authenticated,
128 struct security_token **token)
129{
130 struct security_token *ptoken;
131 int i;
132 NTSTATUS status;
133
134 ptoken = security_token_initialise(mem_ctx);
135 NT_STATUS_HAVE_NO_MEMORY(ptoken);
136
137 ptoken->sids = talloc_array(ptoken, struct dom_sid *, n_groupSIDs + 5);
138 NT_STATUS_HAVE_NO_MEMORY(ptoken->sids);
139
140 ptoken->user_sid = talloc_reference(ptoken, user_sid);
141 ptoken->group_sid = talloc_reference(ptoken, group_sid);
142 ptoken->privilege_mask = 0;
143
144 ptoken->sids[0] = ptoken->user_sid;
145 ptoken->sids[1] = ptoken->group_sid;
146
147 /*
148 * Finally add the "standard" SIDs.
149 * The only difference between guest and "anonymous"
150 * is the addition of Authenticated_Users.
151 */
152 ptoken->sids[2] = dom_sid_parse_talloc(ptoken->sids, SID_WORLD);
153 NT_STATUS_HAVE_NO_MEMORY(ptoken->sids[2]);
154 ptoken->sids[3] = dom_sid_parse_talloc(ptoken->sids, SID_NT_NETWORK);
155 NT_STATUS_HAVE_NO_MEMORY(ptoken->sids[3]);
156 ptoken->num_sids = 4;
157
158 if (is_authenticated) {
159 ptoken->sids[4] = dom_sid_parse_talloc(ptoken->sids, SID_NT_AUTHENTICATED_USERS);
160 NT_STATUS_HAVE_NO_MEMORY(ptoken->sids[4]);
161 ptoken->num_sids++;
162 }
163
164 for (i = 0; i < n_groupSIDs; i++) {
165 size_t check_sid_idx;
166 for (check_sid_idx = 1;
167 check_sid_idx < ptoken->num_sids;
168 check_sid_idx++) {
169 if (dom_sid_equal(ptoken->sids[check_sid_idx], groupSIDs[i])) {
170 break;
171 }
172 }
173
174 if (check_sid_idx == ptoken->num_sids) {
175 ptoken->sids[ptoken->num_sids++] = talloc_reference(ptoken->sids, groupSIDs[i]);
176 }
177 }
178
179 /* setup the privilege mask for this token */
180 status = samdb_privilege_setup(ev_ctx, lp_ctx, ptoken);
181 if (!NT_STATUS_IS_OK(status)) {
182 talloc_free(ptoken);
183 return status;
184 }
185
186 security_token_debug(10, ptoken);
187
188 *token = ptoken;
189
190 return NT_STATUS_OK;
191}
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