contiki/apps/shell/shell-rime-sniff.c

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/*
* 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.
*
* $Id: shell-rime-sniff.c,v 1.1 2008/02/04 23:42:17 adamdunkels Exp $
*/
/**
* \file
* Contiki shell Rime sniffer application
* \author
* Adam Dunkels <adam@sics.se>
*/
#include "shell.h"
#include "net/rime.h"
/*---------------------------------------------------------------------------*/
PROCESS(shell_sniff_process, "sniff");
SHELL_COMMAND(sniff_command,
"sniff",
"sniff: dump incoming packets",
&shell_sniff_process);
/*---------------------------------------------------------------------------*/
enum {
SNIFFER_INPUT,
SNIFFER_OUTPUT,
};
/*---------------------------------------------------------------------------*/
static void
input_sniffer(void)
{
struct {
uint16_t len;
uint16_t flags;
} msg;
msg.len = rimebuf_totlen() / 2 + 1;
msg.flags = SNIFFER_INPUT;
shell_output(&sniff_command, &msg, sizeof(msg),
rimebuf_dataptr(), (rimebuf_datalen() & 0xfffe) +
2 * (rimebuf_totlen() & 1));
}
/*---------------------------------------------------------------------------*/
static void
output_sniffer(void)
{
struct {
uint16_t len;
uint16_t flags;
} msg;
msg.len = rimebuf_totlen() / 2 + 1;
msg.flags = SNIFFER_OUTPUT;
shell_output(&sniff_command, &msg, sizeof(msg),
rimebuf_hdrptr(), (rimebuf_totlen() & 0xfffe) +
2 * (rimebuf_totlen() & 1));
}
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(shell_sniff_process, ev, data)
{
RIME_SNIFFER(s, input_sniffer, output_sniffer);
PROCESS_EXITHANDLER(goto exit;);
PROCESS_BEGIN();
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);
}
/*---------------------------------------------------------------------------*/