/* * Copyright (c) 2007, Swedish Institute of Computer Science. * 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. * */ /** * \file * Chameleon, Rime's header processing module * \author * Adam Dunkels <adam@sics.se> */ #include "net/rime/chameleon.h" #include "net/rime/channel.h" #include "net/rime.h" #include "lib/list.h" #include <stdio.h> #ifndef CHAMELEON_MODULE #ifdef CHAMELEON_CONF_MODULE #define CHAMELEON_MODULE CHAMELEON_CONF_MODULE #else /* CHAMELEON_CONF_MODULE */ #define CHAMELEON_MODULE chameleon_bitopt #endif /* CHAMELEON_CONF_MODULE */ #endif /* CHAMELEON_MODULE */ extern const struct chameleon_module CHAMELEON_MODULE; #define DEBUG 0 #if DEBUG #include <stdio.h> #define PRINTF(...) printf(__VA_ARGS__) #else #define PRINTF(...) #endif /*---------------------------------------------------------------------------*/ void chameleon_init(void) { channel_init(); } /*---------------------------------------------------------------------------*/ #if DEBUG static void printbin(int n, int digits) { int i; char output[128]; for(i = 0; i < digits; ++i) { output[digits - i - 1] = (n & 1) + '0'; n >>= 1; } output[i] = 0; printf(output); } static void printhdr(uint8_t *hdr, int len) { int i, j; j = 0; for(i = 0; i < len; ++i) { printbin(hdr[i], 8); printf(" (0x%0x), ", hdr[i]); ++j; if(j == 10) { printf("\n"); j = 0; } } if(j != 0) { printf("\n"); } } #endif /* DEBUG */ /*---------------------------------------------------------------------------*/ struct channel * chameleon_parse(void) { struct channel *c = NULL; PRINTF("%d.%d: chameleon_input\n", rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1]); #if DEBUG printhdr(packetbuf_dataptr(), packetbuf_datalen()); #endif /* DEBUG */ c = CHAMELEON_MODULE.input(); if(c != NULL) { PRINTF("%d.%d: chameleon_input channel %d\n", rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1], c->channelno); packetbuf_set_attr(PACKETBUF_ATTR_CHANNEL, c->channelno); } else { PRINTF("%d.%d: chameleon_input channel not found for incoming packet\n", rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1]); } return c; } /*---------------------------------------------------------------------------*/ int chameleon_create(struct channel *c) { int ret; PRINTF("%d.%d: chameleon_output channel %d\n", rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1], c->channelno); ret = CHAMELEON_MODULE.output(c); packetbuf_set_attr(PACKETBUF_ATTR_CHANNEL, c->channelno); #if DEBUG printhdr(packetbuf_hdrptr(), packetbuf_hdrlen()); #endif /* DEBUG */ if(ret) { return 1; } return 0; } /*---------------------------------------------------------------------------*/ int chameleon_hdrsize(const struct packetbuf_attrlist attrlist[]) { return CHAMELEON_MODULE.hdrsize(attrlist); } /*---------------------------------------------------------------------------*/