/*
 * 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,
};
 type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/mm?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>mm</a>/<a href='/cgit.cgi/linux/net-next.git/commit/mm/internal.h?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>internal.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Wu Fengguang &lt;fengguang.wu@intel.com&gt;</td><td class='right'>2009-12-16 12:19:59 +0100</td></tr>
<tr><th>committer</th><td>Andi Kleen &lt;ak@linux.intel.com&gt;</td><td class='right'>2009-12-16 12:19:59 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/mm/internal.h?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4</a> (<a href='/cgit.cgi/linux/net-next.git/patch/mm/internal.h?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>ac7f1e56551df46bc79e400a182a57f4eae5ddaf</a> /<a href='/cgit.cgi/linux/net-next.git/tree/mm/internal.h?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>mm/internal.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/mm/internal.h?id=138ce286eb6ee6d39ca4fb50516e93adaf6b605f'>138ce286eb6ee6d39ca4fb50516e93adaf6b605f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/mm/internal.h?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4&amp;id2=138ce286eb6ee6d39ca4fb50516e93adaf6b605f'>diff</a>)</td></tr></table>
<div class='commit-subject'>HWPOISON: add fs/device filters</div><div class='commit-msg'>Filesystem data/metadata present the most tricky-to-isolate pages.
It requires careful code review and stress testing to get them right.

The fs/device filter helps to target the stress tests to some specific
filesystem pages. The filter condition is block device's major/minor
numbers:
        - corrupt-filter-dev-major
        - corrupt-filter-dev-minor
When specified (non -1), only page cache pages that belong to that
device will be poisoned.

The filters are checked reliably on the locked and refcounted page.

Haicheng: clear PG_hwpoison and drop bad page count if filter not OK
AK: Add documentation

CC: Haicheng Li &lt;haicheng.li@intel.com&gt;
CC: Nick Piggin &lt;npiggin@suse.de&gt;
Signed-off-by: Wu Fengguang &lt;fengguang.wu@intel.com&gt;
Signed-off-by: Andi Kleen &lt;ak@linux.intel.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=7c116f2b0dbac4a1dd051c7a5e8cef37701cafd4'>Diffstat</a> (limited to 'mm/internal.h')</div><table summary='diffstat' class='diffstat'>