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
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.
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.
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/>.
22 #include "../libcli/auth/libcli_auth.h"
23 #include "../libcli/auth/netlogon_creds_cli.h"
24 #include "rpc_client/cli_netlogon.h"
25 #include "rpc_client/cli_pipe.h"
26 #include "../librpc/gen_ndr/ndr_netlogon.h"
29 #include "libsmb/libsmb.h"
30 #include "source3/include/messages.h"
31 #include "source3/include/g_lock.h"
33 /*********************************************************
34 Change the domain password on the PDC.
35 Do most of the legwork ourselfs. Caller must have
36 already setup the connection to the NETLOGON pipe
37 **********************************************************/
39 NTSTATUS trust_pw_find_change_and_store_it(struct rpc_pipe_client *cli,
43 unsigned char old_trust_passwd_hash[16];
44 unsigned char new_trust_passwd_hash[16];
45 enum netr_SchannelType sec_channel_type = SEC_CHAN_NULL;
46 const char *account_name;
47 char *new_trust_passwd;
50 if (!get_trust_pw_hash(domain, old_trust_passwd_hash, &account_name,
52 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
53 return NT_STATUS_UNSUCCESSFUL;
56 switch (sec_channel_type) {
61 return NT_STATUS_NOT_SUPPORTED;
64 /* Create a random machine account password */
65 new_trust_passwd = generate_random_password(mem_ctx,
66 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
67 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
68 if (new_trust_passwd == NULL) {
69 DEBUG(0, ("generate_random_password failed\n"));
70 return NT_STATUS_NO_MEMORY;
73 E_md4hash(new_trust_passwd, new_trust_passwd_hash);
75 nt_status = rpccli_netlogon_set_trust_password(cli, mem_ctx,
77 old_trust_passwd_hash,
79 new_trust_passwd_hash,
82 if (NT_STATUS_IS_OK(nt_status)) {
83 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
84 current_timestring(talloc_tos(), False)));
86 * Return the result of trying to write the new password
87 * back into the trust account file.
90 switch (sec_channel_type) {
93 if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
94 nt_status = NT_STATUS_UNSUCCESSFUL;
98 case SEC_CHAN_DOMAIN: {
101 time_t pass_last_set_time;
103 /* we need to get the sid first for the
104 * pdb_set_trusteddom_pw call */
106 if (!pdb_get_trusteddom_pw(domain, &pwd, &sid, &pass_last_set_time)) {
107 nt_status = NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
109 if (!pdb_set_trusteddom_pw(domain, new_trust_passwd, &sid)) {
110 nt_status = NT_STATUS_INTERNAL_DB_CORRUPTION;
120 struct trust_pw_change_state {
121 struct g_lock_ctx *g_ctx;
125 static int trust_pw_change_state_destructor(struct trust_pw_change_state *state)
127 g_lock_unlock(state->g_ctx, state->g_lock_key);
131 NTSTATUS trust_pw_change(struct netlogon_creds_cli_context *context,
132 struct messaging_context *msg_ctx,
133 struct dcerpc_binding_handle *b,
137 TALLOC_CTX *frame = talloc_stackframe();
138 struct trust_pw_change_state *state;
139 struct samr_Password current_nt_hash;
140 const struct samr_Password *previous_nt_hash = NULL;
141 enum netr_SchannelType sec_channel_type = SEC_CHAN_NULL;
142 const char *account_name;
143 char *new_trust_passwd;
146 time_t pass_last_set_time;
147 struct timeval g_timeout = { 0, };
149 struct timeval tv = { 0, };
152 state = talloc_zero(frame, struct trust_pw_change_state);
155 return NT_STATUS_NO_MEMORY;
158 state->g_ctx = g_lock_ctx_init(state, msg_ctx);
159 if (state->g_ctx == NULL) {
161 return NT_STATUS_NO_MEMORY;
164 state->g_lock_key = talloc_asprintf(state,
165 "trust_password_change_%s",
167 if (state->g_lock_key == NULL) {
169 return NT_STATUS_NO_MEMORY;
172 g_timeout = timeval_current_ofs(10, 0);
173 status = g_lock_lock(state->g_ctx,
175 G_LOCK_WRITE, g_timeout);
176 if (!NT_STATUS_IS_OK(status)) {
177 DEBUG(1, ("could not get g_lock on [%s]!\n",
183 talloc_set_destructor(state, trust_pw_change_state_destructor);
185 if (!get_trust_pw_hash(domain, current_nt_hash.hash,
187 &sec_channel_type)) {
188 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
190 return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
193 switch (sec_channel_type) {
195 pwd = secrets_fetch_machine_password(domain,
200 return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
203 case SEC_CHAN_DOMAIN:
204 if (!pdb_get_trusteddom_pw(domain, &pwd, &sid, &pass_last_set_time)) {
206 return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
211 return NT_STATUS_NOT_SUPPORTED;
214 timeout = lp_machine_password_timeout();
217 DEBUG(10,("machine password never expires\n"));
223 tv.tv_sec = pass_last_set_time;
224 DEBUG(10, ("password last changed %s\n",
225 timeval_string(talloc_tos(), &tv, false)));
226 tv.tv_sec += timeout;
227 DEBUGADD(10, ("password valid until %s\n",
228 timeval_string(talloc_tos(), &tv, false)));
230 if (!force && !timeval_expired(&tv)) {
235 /* Create a random machine account password */
236 new_trust_passwd = generate_random_password(frame,
237 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
238 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
239 if (new_trust_passwd == NULL) {
240 DEBUG(0, ("generate_random_password failed\n"));
242 return NT_STATUS_NO_MEMORY;
245 status = netlogon_creds_cli_auth(context, b,
248 if (!NT_STATUS_IS_OK(status)) {
253 status = netlogon_creds_cli_ServerPasswordSet(context, b,
254 new_trust_passwd, NULL);
255 if (!NT_STATUS_IS_OK(status)) {
260 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
261 current_timestring(talloc_tos(), False)));
264 * Return the result of trying to write the new password
265 * back into the trust account file.
268 switch (sec_channel_type) {
271 if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
273 return NT_STATUS_INTERNAL_DB_CORRUPTION;
277 case SEC_CHAN_DOMAIN:
279 * we need to get the sid first for the
280 * pdb_set_trusteddom_pw call
282 if (!pdb_set_trusteddom_pw(domain, new_trust_passwd, &sid)) {
284 return NT_STATUS_INTERNAL_DB_CORRUPTION;