nes-proj/os/net/mac/llsec802154.h
Olav Frengstad df130952c7 Ensure correct setup LLSEC for CSMA
* Add `LLSEC_KEY_INDEX` for switching between implicit/explicit keys
 * Add missing `LLSEC_CONF_*
 * Conditionally include required CSMA setup for IPv6 (enable security
   when calculating frame length)
 * Setup default key
 * Always export `csma_security_set_key/2`
2018-10-18 11:28:58 +02:00

95 lines
3.5 KiB
C

/*
* Copyright (c) 2013, Hasso-Plattner-Institut.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \addtogroup link-layer
* @{
*
* \defgroup llsec802154 Link-layer security common functionality
*
* Macros related to 802.15.4 link-layer security.
*
* @{
*/
/**
* \file
* Common functionality of 802.15.4-compliant llsec_drivers.
* \author
* Konrad Krentz <konrad.krentz@gmail.com>
*/
#ifndef LLSEC802154_H_
#define LLSEC802154_H_
#include "net/mac/framer/frame802154.h"
#include "net/ipv6/uip.h"
#ifdef LLSEC802154_CONF_ENABLED
#define LLSEC802154_ENABLED LLSEC802154_CONF_ENABLED
#else /* LLSEC802154_CONF_ENABLED */
#define LLSEC802154_ENABLED 0
#endif /* LLSEC802154_CONF_ENABLED */
#define LLSEC802154_MIC_LEN(sec_lvl) (2 << (sec_lvl & 3))
#ifdef LLSEC802154_CONF_USES_EXPLICIT_KEYS
#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_CONF_USES_EXPLICIT_KEYS
#else /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
#define LLSEC802154_USES_EXPLICIT_KEYS LLSEC802154_ENABLED
#endif /* LLSEC802154_CONF_USES_EXPLICIT_KEYS */
#ifdef LLSEC802154_CONF_USES_AUX_HEADER
#define LLSEC802154_USES_AUX_HEADER LLSEC802154_CONF_USES_AUX_HEADER
#else /* LLSEC802154_CONF_USES_AUX_HEADER */
#define LLSEC802154_USES_AUX_HEADER LLSEC802154_ENABLED
#endif /* LLSEC802154_CONF_USES_AUX_HEADER */
#ifdef LLSEC802154_CONF_USES_FRAME_COUNTER
#define LLSEC802154_USES_FRAME_COUNTER LLSEC802154_CONF_USES_FRAME_COUNTER
#else
#define LLSEC802154_USES_FRAME_COUNTER LLSEC802154_ENABLED
#endif /* LLSEC802154_CONF_USES_FRAME_COUNTER */
#if UIP_BYTE_ORDER == UIP_LITTLE_ENDIAN
#define LLSEC802154_HTONS(n) (n)
#define LLSEC802154_HTONL(n) (n)
#else /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
#define LLSEC802154_HTONS(n) (uint16_t)((((uint16_t) (n)) << 8) | (((uint16_t) (n)) >> 8))
#define LLSEC802154_HTONL(n) (((uint32_t)UIP_HTONS(n) << 16) | UIP_HTONS((uint32_t)(n) >> 16))
#endif /* UIP_CONF_BYTE_ORDER == UIP_LITTLE_ENDIAN */
#endif /* LLSEC802154_H_ */
/** @} */
/** @} */