/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>    /* for ntohs() */

#include "proto.h"
#include "protos.h"
#include "csum.h"
#include "pkt_buff.h"
#include "built_in.h"

struct icmphdr {
	uint8_t type;
	uint8_t code;
	uint16_t checksum;
	union {
		struct {
			uint16_t id;
			uint16_t sequence;
		} echo;
		uint32_t gateway;
		struct {
			uint16_t ____unused;
			uint16_t mtu;
		} frag;
	} un;
} __packed;

static void icmp(struct pkt_buff *pkt)
{
	struct icmphdr *icmp = (struct icmphdr *) pkt_pull(pkt, sizeof(*icmp));
	uint16_t csum;

	if (icmp == NULL)
		return;

	csum = calc_csum(icmp, pkt_len(pkt) + sizeof(*icmp), 0);

	tprintf(" [ ICMP ");
	tprintf("Type (%u), ", icmp->type);
	tprintf("Code (%u), ", icmp->code);
	tprintf("CSum (0x%.4x) is %s", ntohs(icmp->checksum),
		csum ? colorize_start_full(black, red) "bogus (!)"
		       colorize_end() : "ok");
	tprintf(" ]\n");
}

static void icmp_less(struct pkt_buff *pkt)
{
	struct icmphdr *icmp = (struct icmphdr *) pkt_pull(pkt, sizeof(*icmp));

	if (icmp == NULL)
		return;

	tprintf(" Type %u Code %u", icmp->type, icmp->code);
}

struct protocol icmpv4_ops = {
	.key = 0x01,
	.print_full = icmp,
	.print_less = icmp_less,
};
' value='switch'/></form></td></tr>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=d41149145f98fe26dcd0bfd1d6cc095e6e041418'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?id=d41149145f98fe26dcd0bfd1d6cc095e6e041418'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc?id=d41149145f98fe26dcd0bfd1d6cc095e6e041418'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs?id=d41149145f98fe26dcd0bfd1d6cc095e6e041418'>codecs</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/wm8350.c?id=d41149145f98fe26dcd0bfd1d6cc095e6e041418'>wm8350.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/wm8350.c?id=d41149145f98fe26dcd0bfd1d6cc095e6e041418&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>