nes-proj/apps/shell/shell-rime-sniff.c

157 lines
5.0 KiB
C

/*
* Copyright (c) 2008, 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
* Contiki shell Rime sniffer application
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "shell.h"
#include "net/rime/rime.h"
static uint8_t sniff_for_attributes;
/*---------------------------------------------------------------------------*/
PROCESS(shell_sniff_process, "sniff");
SHELL_COMMAND(sniff_command,
"sniff",
"sniff: dump incoming packets",
&shell_sniff_process);
/*---------------------------------------------------------------------------*/
enum {
SNIFFER_PACKET_INPUT,
SNIFFER_PACKET_OUTPUT,
SNIFFER_ATTRIBUTES_INPUT,
SNIFFER_ATTRIBUTES_OUTPUT,
};
/*---------------------------------------------------------------------------*/
struct sniff_attributes_blob {
uint16_t len;
uint16_t type;
uint16_t rssi;
uint16_t lqi;
uint16_t timestamp;
uint16_t listen_time;
uint16_t transmit_time;
uint16_t channel;
linkaddr_t src, dest;
};
struct sniff_packet_blob {
uint16_t len;
uint16_t type;
};
/*---------------------------------------------------------------------------*/
static void
sniff_attributes_output(int type)
{
struct sniff_attributes_blob msg;
msg.len = 10;
msg.type = type;
msg.rssi = packetbuf_attr(PACKETBUF_ATTR_RSSI);
msg.lqi = packetbuf_attr(PACKETBUF_ATTR_LINK_QUALITY);
msg.timestamp = packetbuf_attr(PACKETBUF_ATTR_TIMESTAMP);
msg.listen_time = packetbuf_attr(PACKETBUF_ATTR_LISTEN_TIME);
msg.transmit_time = packetbuf_attr(PACKETBUF_ATTR_TRANSMIT_TIME);
msg.channel = packetbuf_attr(PACKETBUF_ATTR_CHANNEL);
linkaddr_copy(&msg.src, packetbuf_addr(PACKETBUF_ADDR_SENDER));
linkaddr_copy(&msg.dest, packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
shell_output(&sniff_command, &msg, sizeof(msg), NULL, 0);
}
/*---------------------------------------------------------------------------*/
static void
sniff_packet_output(int type)
{
struct sniff_packet_blob msg;
msg.len = packetbuf_totlen() / 2 + 1;
msg.type = type;
shell_output(&sniff_command, &msg, sizeof(msg),
packetbuf_dataptr(), (packetbuf_datalen() & 0xfffe) +
2 * (packetbuf_totlen() & 1));
}
/*---------------------------------------------------------------------------*/
static void
input_sniffer(void)
{
if(sniff_for_attributes) {
sniff_attributes_output(SNIFFER_ATTRIBUTES_INPUT);
} else {
sniff_packet_output(SNIFFER_PACKET_INPUT);
}
}
/*---------------------------------------------------------------------------*/
static void
output_sniffer(int mac_status)
{
if(sniff_for_attributes) {
sniff_attributes_output(SNIFFER_ATTRIBUTES_OUTPUT);
} else {
sniff_packet_output(SNIFFER_PACKET_OUTPUT);
}
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_sniff_process, ev, data)
{
RIME_SNIFFER(s, input_sniffer, output_sniffer);
PROCESS_EXITHANDLER(goto exit;);
PROCESS_BEGIN();
sniff_for_attributes = 0;
if(data != NULL) {
char *arg = data;
if(arg[0] == '-' &&
arg[1] == 'a') {
sniff_for_attributes = 1;
}
}
rime_sniffer_add(&s);
PROCESS_WAIT_EVENT_UNTIL(ev == shell_event_input);
exit:
rime_sniffer_remove(&s);
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
void
shell_rime_sniff_init(void)
{
shell_register_command(&sniff_command);
}
/*---------------------------------------------------------------------------*/