source: vendor/3.6.23/source3/libsmb/trusts_util.c

Last change on this file was 740, checked in by Silvan Scherrer, 13 years ago

Samba Server: update vendor to 3.6.0
File size: 8.9 KB
Line 
1/*
2 * Unix SMB/CIFS implementation.
3 * Routines to operate on various trust relationships
4 * Copyright (C) Andrew Bartlett 2001
5 * Copyright (C) Rafal Szczesniak 2003
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21#include "includes.h"
22#include "../libcli/auth/libcli_auth.h"
23#include "../librpc/gen_ndr/ndr_lsa_c.h"
24#include "rpc_client/cli_lsarpc.h"
25#include "rpc_client/cli_netlogon.h"
26#include "rpc_client/cli_pipe.h"
27#include "../librpc/gen_ndr/ndr_netlogon.h"
28#include "secrets.h"
29#include "passdb.h"
30#include "libsmb/libsmb.h"
31
32/*********************************************************
33 Change the domain password on the PDC.
34 Store the password ourselves, but use the supplied password
35 Caller must have already setup the connection to the NETLOGON pipe
36**********************************************************/
37
38NTSTATUS trust_pw_change_and_store_it(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx,
39 const char *domain,
40 const char *account_name,
41 unsigned char orig_trust_passwd_hash[16],
42 enum netr_SchannelType sec_channel_type)
43{
44 unsigned char new_trust_passwd_hash[16];
45 char *new_trust_passwd;
46 NTSTATUS nt_status;
47
48 switch (sec_channel_type) {
49 case SEC_CHAN_WKSTA:
50 case SEC_CHAN_DOMAIN:
51 break;
52 default:
53 return NT_STATUS_NOT_SUPPORTED;
54 }
55
56 /* Create a random machine account password */
57 new_trust_passwd = generate_random_str(mem_ctx, DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
58
59 if (new_trust_passwd == NULL) {
60 DEBUG(0, ("talloc_strdup failed\n"));
61 return NT_STATUS_NO_MEMORY;
62 }
63
64 E_md4hash(new_trust_passwd, new_trust_passwd_hash);
65
66 nt_status = rpccli_netlogon_set_trust_password(cli, mem_ctx,
67 account_name,
68 orig_trust_passwd_hash,
69 new_trust_passwd,
70 new_trust_passwd_hash,
71 sec_channel_type);
72
73 if (NT_STATUS_IS_OK(nt_status)) {
74 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
75 current_timestring(talloc_tos(), False)));
76 /*
77 * Return the result of trying to write the new password
78 * back into the trust account file.
79 */
80
81 switch (sec_channel_type) {
82
83 case SEC_CHAN_WKSTA:
84 if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
85 nt_status = NT_STATUS_UNSUCCESSFUL;
86 }
87 break;
88
89 case SEC_CHAN_DOMAIN: {
90 char *pwd;
91 struct dom_sid sid;
92 time_t pass_last_set_time;
93
94 /* we need to get the sid first for the
95 * pdb_set_trusteddom_pw call */
96
97 if (!pdb_get_trusteddom_pw(domain, &pwd, &sid, &pass_last_set_time)) {
98 nt_status = NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
99 }
100 if (!pdb_set_trusteddom_pw(domain, new_trust_passwd, &sid)) {
101 nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
102 }
103 break;
104 }
105 default:
106 break;
107 }
108 }
109
110 return nt_status;
111}
112
113/*********************************************************
114 Change the domain password on the PDC.
115 Do most of the legwork ourselfs. Caller must have
116 already setup the connection to the NETLOGON pipe
117**********************************************************/
118
119NTSTATUS trust_pw_find_change_and_store_it(struct rpc_pipe_client *cli,
120 TALLOC_CTX *mem_ctx,
121 const char *domain)
122{
123 unsigned char old_trust_passwd_hash[16];
124 enum netr_SchannelType sec_channel_type = SEC_CHAN_NULL;
125 const char *account_name;
126
127 if (!get_trust_pw_hash(domain, old_trust_passwd_hash, &account_name,
128 &sec_channel_type)) {
129 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
130 return NT_STATUS_UNSUCCESSFUL;
131 }
132
133 return trust_pw_change_and_store_it(cli, mem_ctx, domain,
134 account_name,
135 old_trust_passwd_hash,
136 sec_channel_type);
137}
138
139/*********************************************************************
140 Enumerate the list of trusted domains from a DC
141*********************************************************************/
142
143bool enumerate_domain_trusts( TALLOC_CTX *mem_ctx, const char *domain,
144 char ***domain_names, uint32 *num_domains,
145 struct dom_sid **sids )
146{
147 struct policy_handle pol;
148 NTSTATUS status, result;
149 fstring dc_name;
150 struct sockaddr_storage dc_ss;
151 uint32 enum_ctx = 0;
152 struct cli_state *cli = NULL;
153 struct rpc_pipe_client *lsa_pipe = NULL;
154 struct lsa_DomainList dom_list;
155 int i;
156 struct dcerpc_binding_handle *b = NULL;
157
158 *domain_names = NULL;
159 *num_domains = 0;
160 *sids = NULL;
161
162 /* lookup a DC first */
163
164 if ( !get_dc_name(domain, NULL, dc_name, &dc_ss) ) {
165 DEBUG(3,("enumerate_domain_trusts: can't locate a DC for domain %s\n",
166 domain));
167 return False;
168 }
169
170 /* setup the anonymous connection */
171
172 status = cli_full_connection( &cli, global_myname(), dc_name, &dc_ss, 0, "IPC$", "IPC",
173 "", "", "", 0, Undefined);
174 if ( !NT_STATUS_IS_OK(status) )
175 goto done;
176
177 /* open the LSARPC_PIPE */
178
179 status = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
180 &lsa_pipe);
181 if (!NT_STATUS_IS_OK(status)) {
182 goto done;
183 }
184
185 b = lsa_pipe->binding_handle;
186
187 /* get a handle */
188
189 status = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, True,
190 LSA_POLICY_VIEW_LOCAL_INFORMATION, &pol);
191 if ( !NT_STATUS_IS_OK(status) )
192 goto done;
193
194 /* Lookup list of trusted domains */
195
196 status = dcerpc_lsa_EnumTrustDom(b, mem_ctx,
197 &pol,
198 &enum_ctx,
199 &dom_list,
200 (uint32_t)-1,
201 &result);
202 if ( !NT_STATUS_IS_OK(status) )
203 goto done;
204 if (!NT_STATUS_IS_OK(result)) {
205 status = result;
206 goto done;
207 }
208
209 *num_domains = dom_list.count;
210
211 *domain_names = TALLOC_ZERO_ARRAY(mem_ctx, char *, *num_domains);
212 if (!*domain_names) {
213 status = NT_STATUS_NO_MEMORY;
214 goto done;
215 }
216
217 *sids = TALLOC_ZERO_ARRAY(mem_ctx, struct dom_sid, *num_domains);
218 if (!*sids) {
219 status = NT_STATUS_NO_MEMORY;
220 goto done;
221 }
222
223 for (i=0; i< *num_domains; i++) {
224 (*domain_names)[i] = CONST_DISCARD(char *, dom_list.domains[i].name.string);
225 (*sids)[i] = *dom_list.domains[i].sid;
226 }
227
228done:
229 /* cleanup */
230 if (cli) {
231 DEBUG(10,("enumerate_domain_trusts: shutting down connection...\n"));
232 cli_shutdown( cli );
233 }
234
235 return NT_STATUS_IS_OK(status);
236}
237
238NTSTATUS change_trust_account_password( const char *domain, const char *remote_machine)
239{
240 NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
241 struct sockaddr_storage pdc_ss;
242 fstring dc_name;
243 struct cli_state *cli = NULL;
244 struct rpc_pipe_client *netlogon_pipe = NULL;
245
246 DEBUG(5,("change_trust_account_password: Attempting to change trust account password in domain %s....\n",
247 domain));
248
249 if (remote_machine == NULL || !strcmp(remote_machine, "*")) {
250 /* Use the PDC *only* for this */
251
252 if ( !get_pdc_ip(domain, &pdc_ss) ) {
253 DEBUG(0,("Can't get IP for PDC for domain %s\n", domain));
254 goto failed;
255 }
256
257 if ( !name_status_find( domain, 0x1b, 0x20, &pdc_ss, dc_name) )
258 goto failed;
259 } else {
260 /* supoport old deprecated "smbpasswd -j DOMAIN -r MACHINE" behavior */
261 fstrcpy( dc_name, remote_machine );
262 }
263
264 /* if this next call fails, then give up. We can't do
265 password changes on BDC's --jerry */
266
267 if (!NT_STATUS_IS_OK(cli_full_connection(&cli, global_myname(), dc_name,
268 NULL, 0,
269 "IPC$", "IPC",
270 "", "",
271 "", 0, Undefined))) {
272 DEBUG(0,("modify_trust_password: Connection to %s failed!\n", dc_name));
273 nt_status = NT_STATUS_UNSUCCESSFUL;
274 goto failed;
275 }
276
277 /*
278 * Ok - we have an anonymous connection to the IPC$ share.
279 * Now start the NT Domain stuff :-).
280 */
281
282 /* Shouldn't we open this with schannel ? JRA. */
283
284 nt_status = cli_rpc_pipe_open_noauth(
285 cli, &ndr_table_netlogon.syntax_id, &netlogon_pipe);
286 if (!NT_STATUS_IS_OK(nt_status)) {
287 DEBUG(0,("modify_trust_password: unable to open the domain client session to machine %s. Error was : %s.\n",
288 dc_name, nt_errstr(nt_status)));
289 cli_shutdown(cli);
290 cli = NULL;
291 goto failed;
292 }
293
294 nt_status = trust_pw_find_change_and_store_it(
295 netlogon_pipe, netlogon_pipe, domain);
296
297 cli_shutdown(cli);
298 cli = NULL;
299
300failed:
301 if (!NT_STATUS_IS_OK(nt_status)) {
302 DEBUG(0,("%s : change_trust_account_password: Failed to change password for domain %s.\n",
303 current_timestring(talloc_tos(), False), domain));
304 }
305 else
306 DEBUG(5,("change_trust_account_password: sucess!\n"));
307
308 return nt_status;
309}
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