2 * Unix SMB/CIFS implementation.
3 * Routines to change trust account passwords.
4 * Copyright (C) Andrew Bartlett 2001.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program 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
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 extern pstring global_myname;
25 /*********************************************************
26 Change the domain password on the PDC.
28 Just changes the password betwen the two values specified.
30 Caller must have the cli connected to the netlogon pipe
32 **********************************************************/
33 static NTSTATUS just_change_the_password(struct cli_state *cli, TALLOC_CTX *mem_ctx,
34 unsigned char orig_trust_passwd_hash[16],
35 unsigned char new_trust_passwd_hash[16])
38 result = cli_nt_setup_creds(cli, (lp_server_role() == ROLE_DOMAIN_MEMBER) ?
39 SEC_CHAN_WKSTA : SEC_CHAN_BDC, orig_trust_passwd_hash);
41 if (!NT_STATUS_IS_OK(result)) {
42 DEBUG(1,("just_change_the_password: unable to setup creds (%s)!\n",
47 result = cli_net_srv_pwset(cli, mem_ctx, global_myname, new_trust_passwd_hash);
49 if (!NT_STATUS_IS_OK(result)) {
50 DEBUG(0,("just_change_the_password: unable to change password (%s)!\n",
56 /*********************************************************
57 Change the domain password on the PDC.
58 Store the password ourselves, but use the supplied password
59 Caller must have already setup the connection to the NETLOGON pipe
60 **********************************************************/
62 NTSTATUS trust_pw_change_and_store_it(struct cli_state *cli, TALLOC_CTX *mem_ctx,
63 unsigned char orig_trust_passwd_hash[16])
65 unsigned char new_trust_passwd_hash[16];
66 char *new_trust_passwd;
70 /* Create a random machine account password */
71 str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
72 new_trust_passwd = talloc_strdup(mem_ctx, str);
74 E_md4hash(new_trust_passwd, new_trust_passwd_hash);
76 nt_status = just_change_the_password(cli, mem_ctx, orig_trust_passwd_hash,
77 new_trust_passwd_hash);
79 if (NT_STATUS_IS_OK(nt_status)) {
80 DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
83 * Return the result of trying to write the new password
84 * back into the trust account file.
86 if (!secrets_store_machine_password(new_trust_passwd)) {
87 nt_status = NT_STATUS_UNSUCCESSFUL;
94 /*********************************************************
95 Change the domain password on the PDC.
96 Do most of the legwork ourselfs. Caller must have
97 already setup the connection to the NETLOGON pipe
98 **********************************************************/
100 NTSTATUS trust_pw_find_change_and_store_it(struct cli_state *cli, TALLOC_CTX *mem_ctx,
103 unsigned char old_trust_passwd_hash[16];
106 up_domain = talloc_strdup(mem_ctx, domain);
108 if (!secrets_fetch_trust_account_password(domain,
109 old_trust_passwd_hash,
111 DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
112 return NT_STATUS_UNSUCCESSFUL;
115 return trust_pw_change_and_store_it(cli, mem_ctx, old_trust_passwd_hash);