160 lines
5.3 KiB
C
160 lines
5.3 KiB
C
/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: netstack.h,v 1.6 2010/10/03 20:37:32 adamdunkels Exp $
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*/
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/**
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* \file
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* Include file for the Contiki low-layer network stack (NETSTACK)
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#ifndef NETSTACK_H
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#define NETSTACK_H
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#include "contiki.h"
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/* Network layer configuration. The NET layer is configured through the Makefile,
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via the flag MAC_NET */
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#if NETSTACK_CONF_WITH_IPV6
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#define NETSTACK_NETWORK sicslowpan_driver
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#elif NETSTACK_CONF_WITH_NULLNET
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#define NETSTACK_NETWORK nullnet_driver
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#elif NETSTACK_CONF_WITH_OTHER
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#define NETSTACK_NETWORK NETSTACK_CONF_OTHER_NETWORK
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#else
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#error Unknown NET configuration
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#endif
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/* MAC layer configuration. The MAC layer is configured through the Makefile,
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via the flag MAKE_MAC */
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#if MAC_CONF_WITH_NULLMAC
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#define NETSTACK_MAC nullmac_driver
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#elif MAC_CONF_WITH_CSMA
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#define NETSTACK_MAC csma_driver
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#elif MAC_CONF_WITH_TSCH
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#define NETSTACK_MAC tschmac_driver
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#elif MAC_CONF_WITH_OTHER
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#define NETSTACK_MAC NETSTACK_CONF_OTHER_MAC
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#else
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#error Unknown MAC configuration
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#endif
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/* Radio driver configuration. Most often set by the platform. */
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#ifdef NETSTACK_CONF_RADIO
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#define NETSTACK_RADIO NETSTACK_CONF_RADIO
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#else /* NETSTACK_CONF_RADIO */
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#define NETSTACK_RADIO nullradio_driver
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#endif /* NETSTACK_CONF_RADIO */
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/* Framer selection. The framer is used by the MAC implementation
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to build and parse frames. */
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#ifdef NETSTACK_CONF_FRAMER
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#define NETSTACK_FRAMER NETSTACK_CONF_FRAMER
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#else /* NETSTACK_CONF_FRAMER */
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#define NETSTACK_FRAMER framer_802154
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#endif /* NETSTACK_CONF_FRAMER */
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#include "net/mac/mac.h"
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#include "net/mac/framer/framer.h"
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#include "dev/radio.h"
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#include "net/linkaddr.h"
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/**
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* The structure of a network driver in Contiki.
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*/
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struct network_driver {
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char *name;
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/** Initialize the network driver */
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void (* init)(void);
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/** Callback for getting notified of incoming packet in packetbuf. */
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void (* input)(void);
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/** Callback for getting notified of outgoing packet in uipbuf. */
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uint8_t (* output)(const linkaddr_t *localdest);
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};
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extern const struct network_driver NETSTACK_NETWORK;
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extern const struct mac_driver NETSTACK_MAC;
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extern const struct radio_driver NETSTACK_RADIO;
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extern const struct framer NETSTACK_FRAMER;
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void netstack_init(void);
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/* Netstack ip_packet_processor - for implementing packet filters, firewalls,
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debuggin info, etc */
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enum netstack_ip_action {
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NETSTACK_IP_PROCESS = 0, /* Default behaviour - nothing else */
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NETSTACK_IP_DROP = 1, /* Drop this packet before processing/sending anymore */
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};
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enum netstack_ip_callback_type {
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NETSTACK_IP_INPUT = 0,
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NETSTACK_IP_OUTPUT = 1,
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};
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struct netstack_ip_packet_processor {
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struct netstack_ip_packet_processor *next;
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enum netstack_ip_action (* process_input)(void);
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enum netstack_ip_action (* process_output)(const linkaddr_t *localdest);
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};
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/* This function is intended for the IP stack to call whenever input/output
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callback needs to be called */
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enum netstack_ip_action netstack_do_ip_callback(uint8_t type, const linkaddr_t *localdest);
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void netstack_ip_packet_processor_add(struct netstack_ip_packet_processor *p);
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void netstack_ip_packet_processor_remove(struct netstack_ip_packet_processor *p);
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/* Netstack sniffer - this will soon be deprecated... */
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struct netstack_sniffer {
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struct netstack_sniffer *next;
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void (* input_callback)(void);
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void (* output_callback)(int mac_status);
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};
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#define NETSTACK_SNIFFER(name, input_callback, output_callback) \
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static struct netstack_sniffer name = { NULL, input_callback, output_callback }
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void netstack_sniffer_add(struct netstack_sniffer *s);
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void netstack_sniffer_remove(struct netstack_sniffer *s);
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#endif /* NETSTACK_H */
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