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/*
Unix SMB/CIFS implementation.
Authenticate against Samba4's auth subsystem
Copyright (C) Volker Lendecke 2008
Copyright (C) Andrew Bartlett 2010
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 "source3/include/auth.h"
#include "source4/auth/auth.h"
#include "auth/auth_sam_reply.h"
#include "param/param.h"
#include "source4/lib/events/events.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_AUTH
static NTSTATUS check_samba4_security(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)
{
TALLOC_CTX *frame = talloc_stackframe();
struct netr_SamInfo3 *info3 = NULL;
NTSTATUS nt_status;
struct auth_user_info_dc *user_info_dc;
struct auth4_context *auth4_context;
struct loadparm_context *lp_ctx;
const char *config_file;
lp_ctx = loadparm_init(frame);
if (lp_ctx == NULL) {
DEBUG(10, ("loadparm_init failed\n"));
talloc_free(frame);
return NT_STATUS_INVALID_SERVER_STATE;
}
if (lp_loaded()) {
config_file = lp_configfile();
}
if (!config_file || !config_file[0]) {
config_file = get_dyn_CONFIGFILE();
}
if (!lpcfg_load(lp_ctx, config_file)) {
DEBUG(1, ("s4 lpcfg_load() of s3 config file %s failed", config_file));
talloc_free(frame);
return NT_STATUS_INVALID_SERVER_STATE;
}
/* We create a private tevent context here to avoid nested loops in
* the s3 one, as that may not be expected */
nt_status = auth_context_create(mem_ctx,
s4_event_context_init(frame), NULL,
lp_ctx,
&auth4_context);
NT_STATUS_NOT_OK_RETURN(nt_status);
nt_status = auth_context_set_challenge(auth4_context, auth_context->challenge.data, "auth_samba4");
NT_STATUS_NOT_OK_RETURN_AND_FREE(nt_status, auth4_context);
nt_status = auth_check_password(auth4_context, auth4_context, user_info, &user_info_dc);
NT_STATUS_NOT_OK_RETURN_AND_FREE(nt_status, auth4_context);
nt_status = auth_convert_user_info_dc_saminfo3(mem_ctx,
user_info_dc,
&info3);
if (NT_STATUS_IS_OK(nt_status)) {
/* We need the strings from the server_info to be valid as long as the info3 is around */
talloc_steal(info3, user_info_dc);
}
talloc_free(auth4_context);
if (!NT_STATUS_IS_OK(nt_status)) {
goto done;
}
nt_status = make_server_info_info3(mem_ctx, user_info->client.account_name,
user_info->mapped.domain_name, server_info,
info3);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(10, ("make_server_info_info3 failed: %s\n",
nt_errstr(nt_status)));
TALLOC_FREE(frame);
return nt_status;
}
nt_status = NT_STATUS_OK;
done:
TALLOC_FREE(frame);
return nt_status;
}
/* module initialisation */
static NTSTATUS auth_init_samba4(struct auth_context *auth_context,
const char *param,
auth_methods **auth_method)
{
struct auth_methods *result;
result = TALLOC_ZERO_P(auth_context, struct auth_methods);
if (result == NULL) {
return NT_STATUS_NO_MEMORY;
}
result->name = "samba4";
result->auth = check_samba4_security;
*auth_method = result;
return NT_STATUS_OK;
}
NTSTATUS auth_samba4_init(void)
{
smb_register_auth(AUTH_INTERFACE_VERSION, "samba4",
auth_init_samba4);
return NT_STATUS_OK;
}
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