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/*
Unix SMB/CIFS implementation.
Password and authentication handling
Copyright (C) Andrew Tridgell 1992-2000
Copyright (C) Luke Kenneth Casson Leighton 1996-2000
Copyright (C) Andrew Bartlett 2001-2003
Copyright (C) Gerald Carter 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"
#include "auth.h"
#include "passdb.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
static NTSTATUS auth_sam_ignoredomain_auth(const struct auth_context *auth_context,
void *my_private_data,
TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
struct auth_serversupplied_info **server_info)
{
if (!user_info || !auth_context) {
return NT_STATUS_UNSUCCESSFUL;
}
if (user_info->mapped.account_name == NULL ||
user_info->mapped.account_name[0] == '\0')
{
return NT_STATUS_NOT_IMPLEMENTED;
}
DBG_DEBUG("Check auth for: [%s]\\[%s]\n",
user_info->mapped.domain_name,
user_info->mapped.account_name);
return check_sam_security(&auth_context->challenge, mem_ctx,
user_info, server_info);
}
/* module initialisation */
static NTSTATUS auth_init_sam_ignoredomain(
struct auth_context *auth_context,
const char *param,
struct auth_methods **auth_method)
{
struct auth_methods *result;
result = talloc_zero(auth_context, struct auth_methods);
if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
result->auth = auth_sam_ignoredomain_auth;
result->name = "sam_ignoredomain";
*auth_method = result;
return NT_STATUS_OK;
}
/****************************************************************************
Check SAM security (above) but with a few extra checks.
****************************************************************************/
static NTSTATUS auth_samstrict_auth(const struct auth_context *auth_context,
void *my_private_data,
TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
struct auth_serversupplied_info **server_info)
{
const char *effective_domain = NULL;
bool is_local_name, is_my_domain;
if (!user_info || !auth_context) {
return NT_STATUS_LOGON_FAILURE;
}
effective_domain = user_info->mapped.domain_name;
if (user_info->mapped.account_name == NULL ||
user_info->mapped.account_name[0] == '\0')
{
return NT_STATUS_NOT_IMPLEMENTED;
}
if (lp_server_role() == ROLE_DOMAIN_MEMBER) {
const char *p = NULL;
p = strchr_m(user_info->mapped.account_name, '@');
if (p != NULL) {
/*
* This needs to go to the DC,
* even if @ is the last character
*/
return NT_STATUS_NOT_IMPLEMENTED;
}
}
if (effective_domain == NULL) {
effective_domain = "";
}
DBG_DEBUG("Check auth for: [%s]\\[%s]\n",
effective_domain,
user_info->mapped.account_name);
if (strequal(effective_domain, "") || strequal(effective_domain, ".")) {
/*
* An empty domain name or '.' should be handled
* as the local SAM name.
*/
effective_domain = lp_netbios_name();
}
is_local_name = is_myname(effective_domain);
is_my_domain = strequal(effective_domain, lp_workgroup());
/* check whether or not we service this domain/workgroup name */
switch ( lp_server_role() ) {
case ROLE_STANDALONE:
case ROLE_DOMAIN_MEMBER:
if ( !is_local_name ) {
DEBUG(6,("check_samstrict_security: %s is not one of my local names (%s)\n",
effective_domain, (lp_server_role() == ROLE_DOMAIN_MEMBER
? "ROLE_DOMAIN_MEMBER" : "ROLE_STANDALONE") ));
return NT_STATUS_NOT_IMPLEMENTED;
}
break;
case ROLE_DOMAIN_PDC:
case ROLE_DOMAIN_BDC:
case ROLE_IPA_DC:
if (!is_local_name && !is_my_domain) {
/* If we are running on a DC that has PASSDB module with domain
* information, check if DNS forest name is matching the domain
* name. This is the case of IPA domain controller when
* trusted AD DCs attempt to authenticate IPA users using
* the forest root domain (which is the only domain in IPA).
*/
struct pdb_domain_info *dom_info = NULL;
dom_info = pdb_get_domain_info(mem_ctx);
if ((dom_info != NULL) && (dom_info->dns_forest != NULL)) {
is_my_domain = strequal(user_info->mapped.domain_name,
dom_info->dns_forest);
}
TALLOC_FREE(dom_info);
if (!is_my_domain) {
DEBUG(6,("check_samstrict_security: %s is not one "
"of my local names or domain name (DC)\n",
effective_domain));
return NT_STATUS_NOT_IMPLEMENTED;
}
}
break;
default: /* name is ok */
break;
}
return check_sam_security(&auth_context->challenge, mem_ctx,
user_info, server_info);
}
/* module initialisation */
static NTSTATUS auth_init_sam(
struct auth_context *auth_context,
const char *param,
struct auth_methods **auth_method)
{
struct auth_methods *result;
if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
&& !lp_parm_bool(-1, "server role check", "inhibit", false)) {
DEBUG(0, ("server role = 'active directory domain controller' not compatible with running the auth_sam module. \n"));
DEBUGADD(0, ("You should not set 'auth methods' when running the AD DC.\n"));
exit(1);
}
result = talloc_zero(auth_context, struct auth_methods);
if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
result->auth = auth_samstrict_auth;
result->name = "sam";
*auth_method = result;
return NT_STATUS_OK;
}
static NTSTATUS auth_sam_netlogon3_auth(const struct auth_context *auth_context,
void *my_private_data,
TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
struct auth_serversupplied_info **server_info)
{
const char *effective_domain = NULL;
bool is_my_domain;
if (!user_info || !auth_context) {
return NT_STATUS_LOGON_FAILURE;
}
effective_domain = user_info->mapped.domain_name;
if (user_info->mapped.account_name == NULL ||
user_info->mapped.account_name[0] == '\0')
{
return NT_STATUS_NOT_IMPLEMENTED;
}
if (effective_domain == NULL) {
effective_domain = "";
}
DBG_DEBUG("Check auth for: [%s]\\[%s]\n",
effective_domain,
user_info->mapped.account_name);
/* check whether or not we service this domain/workgroup name */
switch (lp_server_role()) {
case ROLE_DOMAIN_PDC:
case ROLE_DOMAIN_BDC:
case ROLE_IPA_DC:
break;
default:
DBG_ERR("Invalid server role\n");
return NT_STATUS_INVALID_SERVER_STATE;
}
if (strequal(effective_domain, "") || strequal(effective_domain, ".")) {
/*
* An empty domain name or '.' should be handled
* as the local SAM name.
*/
effective_domain = lp_workgroup();
}
is_my_domain = strequal(user_info->mapped.domain_name, lp_workgroup());
if (!is_my_domain) {
/* If we are running on a DC that has PASSDB module with domain
* information, check if DNS forest name is matching the domain
* name. This is the case of IPA domain controller when
* trusted AD DCs attempt to authenticate IPA users using
* the forest root domain (which is the only domain in IPA).
*/
struct pdb_domain_info *dom_info = NULL;
dom_info = pdb_get_domain_info(mem_ctx);
if ((dom_info != NULL) && (dom_info->dns_forest != NULL)) {
is_my_domain = strequal(user_info->mapped.domain_name,
dom_info->dns_forest);
}
TALLOC_FREE(dom_info);
}
if (!is_my_domain) {
DBG_INFO("%s is not our domain name (DC for %s)\n",
effective_domain, lp_workgroup());
return NT_STATUS_NOT_IMPLEMENTED;
}
return check_sam_security(&auth_context->challenge, mem_ctx,
user_info, server_info);
}
/* module initialisation */
static NTSTATUS auth_init_sam_netlogon3(
struct auth_context *auth_context,
const char *param,
struct auth_methods **auth_method)
{
struct auth_methods *result;
if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
&& !lp_parm_bool(-1, "server role check", "inhibit", false)) {
DEBUG(0, ("server role = 'active directory domain controller' "
"not compatible with running the auth_sam module.\n"));
DEBUGADD(0, ("You should not set 'auth methods' when "
"running the AD DC.\n"));
exit(1);
}
result = talloc_zero(auth_context, struct auth_methods);
if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
result->auth = auth_sam_netlogon3_auth;
result->name = "sam_netlogon3";
*auth_method = result;
return NT_STATUS_OK;
}
NTSTATUS auth_sam_init(TALLOC_CTX *mem_ctx)
{
smb_register_auth(AUTH_INTERFACE_VERSION, "sam", auth_init_sam);
smb_register_auth(AUTH_INTERFACE_VERSION, "sam_ignoredomain", auth_init_sam_ignoredomain);
smb_register_auth(AUTH_INTERFACE_VERSION, "sam_netlogon3", auth_init_sam_netlogon3);
return NT_STATUS_OK;
}
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