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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 3 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, see <http://www.gnu.org/licenses/>.
*/
#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 rpc_pipe_client *cli, TALLOC_CTX *mem_ctx,
const unsigned char orig_trust_passwd_hash[16],
const char *new_trust_pwd_cleartext,
const unsigned char new_trust_passwd_hash[16],
uint32 sec_channel_type)
{
NTSTATUS result;
uint32_t neg_flags = NETLOGON_NEG_AUTH2_ADS_FLAGS;
result = rpccli_netlogon_setup_creds(cli,
cli->desthost, /* server name */
lp_workgroup(), /* domain */
global_myname(), /* client name */
global_myname(), /* machine account name */
orig_trust_passwd_hash,
sec_channel_type,
&neg_flags);
if (!NT_STATUS_IS_OK(result)) {
DEBUG(3,("just_change_the_password: unable to setup creds (%s)!\n",
nt_errstr(result)));
return result;
}
if (neg_flags & NETLOGON_NEG_PASSWORD_SET2) {
struct netr_Authenticator clnt_creds, srv_cred;
struct netr_CryptPassword new_password;
struct samr_CryptPassword password_buf;
netlogon_creds_client_step(cli->dc, &clnt_creds);
encode_pw_buffer(password_buf.data, new_trust_pwd_cleartext, STR_UNICODE);
SamOEMhash(password_buf.data, cli->dc->sess_key, 516);
memcpy(new_password.data, password_buf.data, 512);
new_password.length = IVAL(password_buf.data, 512);
result = rpccli_netr_ServerPasswordSet2(cli, mem_ctx,
cli->dc->remote_machine,
cli->dc->mach_acct,
sec_channel_type,
global_myname(),
&clnt_creds,
&srv_cred,
&new_password);
/* Always check returned credentials. */
if (!netlogon_creds_client_check(cli->dc, &srv_cred.cred)) {
DEBUG(0,("rpccli_netr_ServerPasswordSet2: "
"credentials chain check failed\n"));
return NT_STATUS_ACCESS_DENIED;
}
} else {
struct netr_Authenticator clnt_creds, srv_cred;
struct samr_Password new_password;
netlogon_creds_client_step(cli->dc, &clnt_creds);
cred_hash3(new_password.hash,
new_trust_passwd_hash,
cli->dc->sess_key, 1);
result = rpccli_netr_ServerPasswordSet(cli, mem_ctx,
cli->dc->remote_machine,
cli->dc->mach_acct,
sec_channel_type,
global_myname(),
&clnt_creds,
&srv_cred,
&new_password);
/* Always check returned credentials. */
if (!netlogon_creds_client_check(cli->dc, &srv_cred.cred)) {
DEBUG(0,("rpccli_netr_ServerPasswordSet: "
"credentials chain check failed\n"));
return NT_STATUS_ACCESS_DENIED;
}
}
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 rpc_pipe_client *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);
if ((new_trust_passwd = talloc_strdup(mem_ctx, str)) == NULL) {
DEBUG(0, ("talloc_strdup failed\n"));
return NT_STATUS_NO_MEMORY;
}
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,
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",
current_timestring(debug_ctx(), 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 rpc_pipe_client *cli,
TALLOC_CTX *mem_ctx,
const char *domain)
{
unsigned char old_trust_passwd_hash[16];
uint32 sec_channel_type = 0;
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);
}
/*********************************************************************
Enumerate the list of trusted domains from a DC
*********************************************************************/
bool enumerate_domain_trusts( TALLOC_CTX *mem_ctx, const char *domain,
char ***domain_names, uint32 *num_domains,
DOM_SID **sids )
{
POLICY_HND pol;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
fstring dc_name;
struct sockaddr_storage dc_ss;
uint32 enum_ctx = 0;
struct cli_state *cli = NULL;
struct rpc_pipe_client *lsa_pipe;
bool retry;
struct lsa_DomainList dom_list;
int i;
*domain_names = NULL;
*num_domains = 0;
*sids = NULL;
/* lookup a DC first */
if ( !get_dc_name(domain, NULL, dc_name, &dc_ss) ) {
DEBUG(3,("enumerate_domain_trusts: can't locate a DC for domain %s\n",
domain));
return False;
}
/* setup the anonymous connection */
result = cli_full_connection( &cli, global_myname(), dc_name, &dc_ss, 0, "IPC$", "IPC",
"", "", "", 0, Undefined, &retry);
if ( !NT_STATUS_IS_OK(result) )
goto done;
/* open the LSARPC_PIPE */
result = cli_rpc_pipe_open_noauth(cli, &ndr_table_lsarpc.syntax_id,
&lsa_pipe);
if (!NT_STATUS_IS_OK(result)) {
goto done;
}
/* get a handle */
result = rpccli_lsa_open_policy(lsa_pipe, mem_ctx, True,
LSA_POLICY_VIEW_LOCAL_INFORMATION, &pol);
if ( !NT_STATUS_IS_OK(result) )
goto done;
/* Lookup list of trusted domains */
result = rpccli_lsa_EnumTrustDom(lsa_pipe, mem_ctx,
&pol,
&enum_ctx,
&dom_list,
(uint32_t)-1);
if ( !NT_STATUS_IS_OK(result) )
goto done;
*num_domains = dom_list.count;
*domain_names = TALLOC_ZERO_ARRAY(mem_ctx, char *, *num_domains);
if (!*domain_names) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
*sids = TALLOC_ZERO_ARRAY(mem_ctx, DOM_SID, *num_domains);
if (!*sids) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
for (i=0; i< *num_domains; i++) {
(*domain_names)[i] = CONST_DISCARD(char *, dom_list.domains[i].name.string);
(*sids)[i] = *dom_list.domains[i].sid;
}
done:
/* cleanup */
if (cli) {
DEBUG(10,("enumerate_domain_trusts: shutting down connection...\n"));
cli_shutdown( cli );
}
return NT_STATUS_IS_OK(result);
}
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