/*
   Unix SMB/CIFS implementation.
   Password and authentication handling
   Copyright (C) Andrew Tridgell 1992-1998
   Copyright (C) Jeremy Allison 2007.

   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 "system/passwd.h"
#include "smbd/smbd.h"
#include "smbd/globals.h"
#include "../librpc/gen_ndr/netlogon.h"
#include "auth.h"
#include "../libcli/security/security.h"

/****************************************************************************
 Invalidate a uid.
****************************************************************************/

void invalidate_vuid(struct smbd_server_connection *sconn, uint64_t vuid)
{
	struct smbXsrv_session *session = NULL;
	NTSTATUS status;

	status = get_valid_smbXsrv_session(sconn->client, vuid, &session);
	if (!NT_STATUS_IS_OK(status)) {
		return;
	}

	session_yield(session);

	SMB_ASSERT(sconn->num_users > 0);
	sconn->num_users--;

	/* clear the vuid from the 'cache' on each connection, and
	   from the vuid 'owner' of connections */
	conn_clear_vuid_caches(sconn, vuid);
}

int register_homes_share(const char *username)
{
	const struct loadparm_substitution *lp_sub =
		loadparm_s3_global_substitution();
	int result;
	struct passwd *pwd;

	result = lp_servicenumber(username);
	if (result != -1) {
		DEBUG(3, ("Using static (or previously created) service for "
			  "user '%s'; path = '%s'\n", username,
			  lp_path(talloc_tos(), lp_sub, result)));
		return result;
	}

	pwd = Get_Pwnam_alloc(talloc_tos(), username);

	if ((pwd == NULL) || (pwd->pw_dir[0] == '\0')) {
		DEBUG(3, ("No home directory defined for user '%s'\n",
			  username));
		TALLOC_FREE(pwd);
		return -1;
	}

	if (strequal(pwd->pw_dir, "/")) {
		DBG_NOTICE("Invalid home directory defined for user '%s'\n",
			   username);
		TALLOC_FREE(pwd);
		return -1;
	}

	DEBUG(3, ("Adding homes service for user '%s' using home directory: "
		  "'%s'\n", username, pwd->pw_dir));

	result = add_home_service(username, username, pwd->pw_dir);

	TALLOC_FREE(pwd);
	return result;
}