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/*
Unix SMB/Netbios implementation.
Version 1.9.
NT Domain Authentication SMB / MSRPC client
Copyright (C) Andrew Tridgell 1994-1997
Copyright (C) Luke Kenneth Casson Leighton 1996-1997
Copyright (C) Jeremy Allison 1999.
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"
extern int DEBUGLEVEL;
extern fstring global_myworkgroup;
extern pstring global_myname;
/****************************************************************************
Initialize domain session credentials.
****************************************************************************/
BOOL cli_nt_setup_creds(struct cli_state *cli, unsigned char mach_pwd[16])
{
DOM_CHAL clnt_chal;
DOM_CHAL srv_chal;
UTIME zerotime;
/******************* Request Challenge ********************/
generate_random_buffer( clnt_chal.data, 8, False);
/* send a client challenge; receive a server challenge */
if (!cli_net_req_chal(cli, &clnt_chal, &srv_chal))
{
DEBUG(0,("cli_nt_setup_creds: request challenge failed\n"));
return False;
}
/**************** Long-term Session key **************/
/* calculate the session key */
cred_session_key(&clnt_chal, &srv_chal, (char *)mach_pwd, cli->sess_key);
memset((char *)cli->sess_key+8, '\0', 8);
/******************* Authenticate 2 ********************/
/* calculate auth-2 credentials */
zerotime.time = 0;
cred_create(cli->sess_key, &clnt_chal, zerotime, &(cli->clnt_cred.challenge));
/*
* Send client auth-2 challenge.
* Receive an auth-2 challenge response and check it.
*/
if (!cli_net_auth2(cli, (lp_server_role() == ROLE_DOMAIN_MEMBER) ?
SEC_CHAN_WKSTA : SEC_CHAN_BDC, 0x000001ff, &srv_chal))
{
DEBUG(0,("cli_nt_setup_creds: auth2 challenge failed\n"));
return False;
}
return True;
}
/****************************************************************************
Set machine password.
****************************************************************************/
BOOL cli_nt_srv_pwset(struct cli_state *cli, unsigned char *new_hashof_mach_pwd)
{
unsigned char processed_new_pwd[16];
DEBUG(5,("cli_nt_srv_pwset: %d\n", __LINE__));
#ifdef DEBUG_PASSWORD
dump_data(6, (char *)new_hashof_mach_pwd, 16);
#endif
/* Process the new password. */
cred_hash3( processed_new_pwd, new_hashof_mach_pwd, cli->sess_key, 1);
/* send client srv_pwset challenge */
return cli_net_srv_pwset(cli, processed_new_pwd);
}
/****************************************************************************
NT login - interactive.
*NEVER* use this code. This method of doing a logon (sending the cleartext
password equivalents, protected by the session key) is inherently insecure
given the current design of the NT Domain system. JRA.
****************************************************************************/
BOOL cli_nt_login_interactive(struct cli_state *cli, char *domain, char *username,
uint32 smb_userid_low, char *password,
NET_ID_INFO_CTR *ctr, NET_USER_INFO_3 *user_info3)
{
uchar lm_owf_user_pwd[16];
uchar nt_owf_user_pwd[16];
BOOL ret;
DEBUG(5,("cli_nt_login_interactive: %d\n", __LINE__));
nt_lm_owf_gen(password, nt_owf_user_pwd, lm_owf_user_pwd);
#ifdef DEBUG_PASSWORD
DEBUG(100,("nt owf of user password: "));
dump_data(100, (char *)lm_owf_user_pwd, 16);
DEBUG(100,("nt owf of user password: "));
dump_data(100, (char *)nt_owf_user_pwd, 16);
#endif
DEBUG(5,("cli_nt_login_interactive: %d\n", __LINE__));
/* indicate an "interactive" login */
ctr->switch_value = INTERACTIVE_LOGON_TYPE;
/* Create the structure needed for SAM logon. */
init_id_info1(&ctr->auth.id1, domain, 0,
smb_userid_low, 0,
username, cli->clnt_name_slash,
(char *)cli->sess_key, lm_owf_user_pwd, nt_owf_user_pwd);
/* Ensure we overwrite all the plaintext password
equivalents. */
memset(lm_owf_user_pwd, '\0', sizeof(lm_owf_user_pwd));
memset(nt_owf_user_pwd, '\0', sizeof(nt_owf_user_pwd));
/* Send client sam-logon request - update credentials on success. */
ret = cli_net_sam_logon(cli, ctr, user_info3);
memset(ctr->auth.id1.lm_owf.data, '\0', sizeof(lm_owf_user_pwd));
memset(ctr->auth.id1.nt_owf.data, '\0', sizeof(nt_owf_user_pwd));
return ret;
}
/****************************************************************************
NT login - network.
*ALWAYS* use this call to validate a user as it does not expose plaintext
password equivalents over the network. JRA.
****************************************************************************/
BOOL cli_nt_login_network(struct cli_state *cli, const auth_usersupplied_info *user_info,
uint32 smb_userid_low, NET_ID_INFO_CTR *ctr,
NET_USER_INFO_3 *user_info3)
{
DEBUG(5,("cli_nt_login_network: %d\n", __LINE__));
/* indicate a "network" login */
ctr->switch_value = NET_LOGON_TYPE;
/* Create the structure needed for SAM logon. */
init_id_info2(&ctr->auth.id2, user_info->domain.str, 0, smb_userid_low, 0,
user_info->smb_username.str, cli->clnt_name_slash,
user_info->chal,
user_info->lm_resp.buffer, user_info->lm_resp.len,
user_info->nt_resp.buffer, user_info->nt_resp.len);
/* Send client sam-logon request - update credentials on success. */
return cli_net_sam_logon(cli, ctr, user_info3);
}
/****************************************************************************
NT Logoff.
****************************************************************************/
BOOL cli_nt_logoff(struct cli_state *cli, NET_ID_INFO_CTR *ctr)
{
DEBUG(5,("cli_nt_logoff: %d\n", __LINE__));
/* Send client sam-logoff request - update credentials on success. */
return cli_net_sam_logoff(cli, ctr);
}
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