l2cap_sec.c

blue tooth protocol stack source code

/*
 * l2cap_sec.c -- Implementation of Bluetooth Logical Link Control 
 *                and Adaption Protocol (L2CAP), security part          
 *
 * Copyright (C) 2000, 2001  Axis Communications AB
 *
 * Author: Mattias Agren <[e-mail]>
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Exceptionally, Axis Communications AB grants discretionary and
 * conditional permissions for additional use of the text contained
 * in the company's release of the AXIS OpenBT Stack under the
 * provisions set forth hereunder.
 *
 * Provided that, if you use the AXIS OpenBT Stack with other files,
 * that do not implement functionality as specified in the Bluetooth
 * System specification, to produce an executable, this does not by
 * itself cause the resulting executable to be covered by the GNU
 * General Public License. Your use of that executable is in no way
 * restricted on account of using the AXIS OpenBT Stack code with it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the provisions of the GNU
 * General Public License.
 *
 * $Id: l2cap_sec.c,v 1.3 2001/02/15 16:27:33 pkj Exp $
 *
 */

/****************** INCLUDE FILES SECTION ***********************************/

#define __NO_VERSION__ /* don't define kernel_version in module.h */

#ifdef __KERNEL__
#include <linux/malloc.h>
#include <linux/bluetooth/l2cap_sec.h>
#include <linux/bluetooth/l2cap.h>
#include <linux/bluetooth/sec_client.h>
#include <linux/bluetooth/btmem.h>
#else /* user mode */
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <signal.h>
#include "include/l2cap_sec.h"
#include "include/l2cap.h"
#include "include/sec_client.h"
#include "include/btmem.h"
#endif

/****************** DEBUG CONSTANT AND MACRO SECTION ************************/

/****************** CONSTANT AND MACRO SECTION ******************************/

/****************** TYPE DEFINITION SECTION *********************************/

/****************** LOCAL FUNCTION DECLARATION SECTION **********************/

/****************** GLOBAL VARIABLE DECLARATION SECTION *********************/

/****************** LOCAL VARIABLE DECLARATION SECTION **********************/

/****************** FUNCTION DEFINITION SECTION *****************************/

/* fixme --  add debug and return values in all functions called from stack to 
   indicate status */

void 
l2cap_sec_man_init(void)
{
	sec_man_init(L2CAP);
}

void
l2cap_check_allowed_security(u16 psm, BD_ADDR bd_addr, l2cap_con *con)
{
	/* If pending response should be sent, do it here */
	
	sec_man_check(L2CAP, bd_addr, psm, (u32) con);
}

void l2cap_process_sec_man_response(u16 result, u32 user_data)
{
	l2cap_con *con = (l2cap_con *) user_data;
	
	//printk("l2cap_process_sec_man_response : result %d\n", result);
	switch (result) {
	case SECURITY_OK: 
		/* send l2ca_connect_ind */
		l2ca_connect_ind(con);
		break;

	case UNKNOWN_REQUEST_TYPE:
	case UNKNOWN_REQUEST_VALUE:
		/* send connection response PSM not supported */
		l2ca_connect_rsp(con, RES_PSMNEG, STAT_NOINFO);
		break;

	case PSM_SECURITY_BLOCK:
	case AUTHENTICATION_FAILURE:
	case ENCRYPTION_FAILURE:
		/* send connection response PSM security block */
		l2ca_connect_rsp(con, RES_SECNEG, STAT_NOINFO);
		break;

	case GENERAL_FAILURE:
		/* send connection response PSM security block */
		l2ca_connect_rsp(con, RES_SECNEG, STAT_NOINFO);
		break;

	default:
		/* Print error message */
		break;
	}
}

/****************** END OF FILE l2cap_sec.c *********************************/