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 struct trust_pw_change_state {
40 struct g_lock_ctx *g_ctx;
44 static int trust_pw_change_state_destructor(struct trust_pw_change_state *state)
46 g_lock_unlock(state->g_ctx, state->g_lock_key);
50 NTSTATUS trust_pw_change(struct netlogon_creds_cli_context *context,
51 struct messaging_context *msg_ctx,
52 struct dcerpc_binding_handle *b,
56 TALLOC_CTX *frame = talloc_stackframe();
57 struct trust_pw_change_state *state;
58 struct samr_Password current_nt_hash;
59 const struct samr_Password *previous_nt_hash = NULL;
60 enum netr_SchannelType sec_channel_type = SEC_CHAN_NULL;
61 const char *account_name;
62 char *new_trust_passwd;
65 time_t pass_last_set_time;
66 struct timeval g_timeout = { 0, };
68 struct timeval tv = { 0, };
71 state = talloc_zero(frame, struct trust_pw_change_state);
74 return NT_STATUS_NO_MEMORY;
77 state->g_ctx = g_lock_ctx_init(state, msg_ctx);
78 if (state->g_ctx == NULL) {
80 return NT_STATUS_NO_MEMORY;
83 state->g_lock_key = talloc_asprintf(state,
84 "trust_password_change_%s",
86 if (state->g_lock_key == NULL) {
88 return NT_STATUS_NO_MEMORY;
91 g_timeout = timeval_current_ofs(10, 0);
92 status = g_lock_lock(state->g_ctx,
94 G_LOCK_WRITE, g_timeout);
95 if (!NT_STATUS_IS_OK(status)) {
96 DEBUG(1, ("could not get g_lock on [%s]!\n",
102 talloc_set_destructor(state, trust_pw_change_state_destructor);
104 if (!get_trust_pw_hash(domain, current_nt_hash.hash,
106 &sec_channel_type)) {
107 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
109 return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
112 switch (sec_channel_type) {
114 pwd = secrets_fetch_machine_password(domain,
119 return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
123 case SEC_CHAN_DOMAIN:
124 if (!pdb_get_trusteddom_pw(domain, &pwd, &sid, &pass_last_set_time)) {
126 return NT_STATUS_TRUSTED_RELATIONSHIP_FAILURE;
131 return NT_STATUS_NOT_SUPPORTED;
134 timeout = lp_machine_password_timeout();
137 DEBUG(10,("machine password never expires\n"));
143 tv.tv_sec = pass_last_set_time;
144 DEBUG(10, ("password last changed %s\n",
145 timeval_string(talloc_tos(), &tv, false)));
146 tv.tv_sec += timeout;
147 DEBUGADD(10, ("password valid until %s\n",
148 timeval_string(talloc_tos(), &tv, false)));
150 if (!force && !timeval_expired(&tv)) {
155 /* Create a random machine account password */
156 new_trust_passwd = generate_random_password(frame,
157 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH,
158 DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
159 if (new_trust_passwd == NULL) {
160 DEBUG(0, ("generate_random_password failed\n"));
162 return NT_STATUS_NO_MEMORY;
165 status = netlogon_creds_cli_auth(context, b,
168 if (!NT_STATUS_IS_OK(status)) {
173 status = netlogon_creds_cli_ServerPasswordSet(context, b,
174 new_trust_passwd, NULL);
175 if (!NT_STATUS_IS_OK(status)) {
180 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
181 current_timestring(talloc_tos(), False)));
184 * Return the result of trying to write the new password
185 * back into the trust account file.
188 switch (sec_channel_type) {
191 if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
193 return NT_STATUS_INTERNAL_DB_CORRUPTION;
197 case SEC_CHAN_DOMAIN:
199 * we need to get the sid first for the
200 * pdb_set_trusteddom_pw call
202 if (!pdb_set_trusteddom_pw(domain, new_trust_passwd, &sid)) {
204 return NT_STATUS_INTERNAL_DB_CORRUPTION;