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/*
Unix SMB/CIFS implementation.
krb5 set password implementation
Copyright (C) Andrew Tridgell 2001
Copyright (C) Remus Koos 2001 (remuskoos@yahoo.com)
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"
#include "smb_krb5.h"
#include "ads.h"
#ifdef HAVE_KRB5
/**
* Set the machine account password
* @param ads connection to ads server
* @param hostname machine whose password is being set
* @param password new password
* @return status of password change
**/
ADS_STATUS ads_set_machine_password(ADS_STRUCT *ads,
const char *machine_account,
const char *password)
{
ADS_STATUS status;
char *principal = NULL;
/*
we need to use the '$' form of the name here (the machine account name),
as otherwise the server might end up setting the password for a user
instead
*/
if (asprintf(&principal, "%s@%s", machine_account, ads->config.realm) < 0) {
return ADS_ERROR_NT(NT_STATUS_NO_MEMORY);
}
status = ads_krb5_set_password(ads->auth.kdc_server, principal,
password, ads->auth.time_offset);
SAFE_FREE(principal);
return status;
}
/* run kinit to setup our ccache */
int ads_kinit_password(ADS_STRUCT *ads)
{
char *s;
int ret;
const char *account_name;
fstring acct_name;
if (ads->auth.flags & ADS_AUTH_USER_CREDS) {
account_name = ads->auth.user_name;
goto got_accountname;
}
if ( IS_DC ) {
/* this will end up getting a ticket for DOMAIN@RUSTED.REA.LM */
account_name = lp_workgroup();
} else {
/* always use the sAMAccountName for security = domain */
/* lp_netbios_name()$@REA.LM */
if ( lp_security() == SEC_DOMAIN ) {
fstr_sprintf( acct_name, "%s$", lp_netbios_name() );
account_name = acct_name;
}
else
/* This looks like host/lp_netbios_name()@REA.LM */
account_name = ads->auth.user_name;
}
got_accountname:
if (asprintf(&s, "%s@%s", account_name, ads->auth.realm) == -1) {
return KRB5_CC_NOMEM;
}
if (!ads->auth.password) {
SAFE_FREE(s);
return KRB5_LIBOS_CANTREADPWD;
}
ret = kerberos_kinit_password_ext(s, ads->auth.password, ads->auth.time_offset,
&ads->auth.tgt_expire, NULL, NULL, False, False, ads->auth.renewable,
NULL);
if (ret) {
DEBUG(0,("kerberos_kinit_password %s failed: %s\n",
s, error_message(ret)));
}
SAFE_FREE(s);
return ret;
}
#endif
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