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/*
* Unix SMB/CIFS implementation.
* Routines to operate on various trust relationships
* Copyright (C) Andrew Bartlett 2001
* Copyright (C) Rafal Szczesniak 2003
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/*********************************************************
Change the domain password on the PDC.
Just changes the password betwen the two values specified.
Caller must have the cli connected to the netlogon pipe
already.
**********************************************************/
static NTSTATUS just_change_the_password(struct cli_state *cli, TALLOC_CTX *mem_ctx,
unsigned char orig_trust_passwd_hash[16],
unsigned char new_trust_passwd_hash[16],
uint32 sec_channel_type)
{
NTSTATUS result;
uint32 neg_flags = 0x000001ff;
result = cli_nt_setup_creds(cli, sec_channel_type, orig_trust_passwd_hash, &neg_flags, 2);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(1,("just_change_the_password: unable to setup creds (%s)!\n",
nt_errstr(result)));
return result;
}
result = cli_net_srv_pwset(cli, mem_ctx, global_myname(), new_trust_passwd_hash);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(0,("just_change_the_password: unable to change password (%s)!\n",
nt_errstr(result)));
}
return result;
}
/*********************************************************
Change the domain password on the PDC.
Store the password ourselves, but use the supplied password
Caller must have already setup the connection to the NETLOGON pipe
**********************************************************/
NTSTATUS trust_pw_change_and_store_it(struct cli_state *cli, TALLOC_CTX *mem_ctx,
const char *domain,
unsigned char orig_trust_passwd_hash[16],
uint32 sec_channel_type)
{
unsigned char new_trust_passwd_hash[16];
char *new_trust_passwd;
char *str;
NTSTATUS nt_status;
/* Create a random machine account password */
str = generate_random_str(DEFAULT_TRUST_ACCOUNT_PASSWORD_LENGTH);
new_trust_passwd = talloc_strdup(mem_ctx, str);
E_md4hash(new_trust_passwd, new_trust_passwd_hash);
nt_status = just_change_the_password(cli, mem_ctx, orig_trust_passwd_hash,
new_trust_passwd_hash, sec_channel_type);
if (NT_STATUS_IS_OK(nt_status)) {
DEBUG(3,("%s : trust_pw_change_and_store_it: Changed password.\n",
timestring(False)));
/*
* Return the result of trying to write the new password
* back into the trust account file.
*/
if (!secrets_store_machine_password(new_trust_passwd, domain, sec_channel_type)) {
nt_status = NT_STATUS_UNSUCCESSFUL;
}
}
return nt_status;
}
/*********************************************************
Change the domain password on the PDC.
Do most of the legwork ourselfs. Caller must have
already setup the connection to the NETLOGON pipe
**********************************************************/
NTSTATUS trust_pw_find_change_and_store_it(struct cli_state *cli,
TALLOC_CTX *mem_ctx,
const char *domain)
{
unsigned char old_trust_passwd_hash[16];
char *up_domain;
uint32 sec_channel_type = 0;
up_domain = talloc_strdup(mem_ctx, domain);
if (!secrets_fetch_trust_account_password(domain,
old_trust_passwd_hash,
NULL, &sec_channel_type)) {
DEBUG(0, ("could not fetch domain secrets for domain %s!\n", domain));
return NT_STATUS_UNSUCCESSFUL;
}
return trust_pw_change_and_store_it(cli, mem_ctx, domain,
old_trust_passwd_hash,
sec_channel_type);
}
/**
* Verify whether or not given domain is trusted.
*
* @param domain_name name of the domain to be verified
* @return true if domain is one of the trusted once or
* false if otherwise
**/
BOOL is_trusted_domain(const char* dom_name)
{
DOM_SID trustdom_sid;
char *pass = NULL;
time_t lct;
BOOL ret;
if (lp_server_role() == ROLE_DOMAIN_BDC || lp_server_role() == ROLE_DOMAIN_PDC) {
/*
* Query the secrets db as an ultimate source of information
* about trusted domain names. This is PDC or BDC case.
*/
ret = secrets_fetch_trusted_domain_password(dom_name, &pass, &trustdom_sid, &lct);
SAFE_FREE(pass);
if (ret)
return ret;
}
/*
* Query the trustdom_cache updated periodically. The only
* way for domain member server.
*/
if (trustdom_cache_enable() &&
trustdom_cache_fetch(dom_name, &trustdom_sid)) {
trustdom_cache_shutdown();
return True;
}
/*
* if nothing's been found, then give up here, although
* the last resort might be to query the PDC.
*/
return False;
}
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