/*
 * 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 "lookup.h"
#include "pkt_buff.h"

struct udphdr {
	uint16_t source;
	uint16_t dest;
	uint16_t len;
	uint16_t check;
} __packed;

static void udp(struct pkt_buff *pkt)
{
	struct udphdr *udp = (struct udphdr *) pkt_pull(pkt, sizeof(*udp));
	ssize_t len;
	uint16_t src, dest;
	char *src_name, *dest_name;

	if (udp == NULL)
		return;

	len = ntohs(udp->len) - sizeof(*udp);
	src = ntohs(udp->source);
	dest = ntohs(udp->dest);

	src_name = lookup_port_udp(src);
	dest_name = lookup_port_udp(dest);

	tprintf(" [ UDP ");
	tprintf("Port (%u", src);
	if (src_name)
		tprintf(" (%s%s%s)", colorize_start(bold), src_name,
			colorize_end());
	tprintf(" => %u", dest);
	if (dest_name)
		tprintf(" (%s%s%s)", colorize_start(bold), dest_name,
			colorize_end());
	tprintf("), ");
	if(len > pkt_len(pkt) || len < 0){
		tprintf("Len (%u) %s, ", ntohs(udp->len),
			colorize_start_full(black, red)
			"invalid" colorize_end());
	}
	tprintf("Len (%u Bytes, %zd Bytes Data), ", ntohs(udp->len), len);
	tprintf("CSum (0x%.4x)", ntohs(udp->check));
	tprintf(" ]\n");
}

static void udp_less(struct pkt_buff *pkt)
{
	struct udphdr *udp = (struct udphdr *) pkt_pull(pkt, sizeof(*udp));
	uint16_t src, dest;
	char *src_name, *dest_name;

	if (udp == NULL)
		return;

	src = ntohs(udp->source);
	dest = ntohs(udp->dest);

	src_name = lookup_port_udp(src);
	dest_name = lookup_port_udp(dest);

	tprintf(" UDP %u", src);
	if(src_name)
		tprintf("(%s%s%s)", colorize_start(bold), src_name,
			colorize_end());
	tprintf("/%u", dest);
	if (dest_name)
		tprintf("(%s%s%s)", colorize_start(bold), dest_name,
			colorize_end());
}

struct protocol udp_ops = {
	.key = 0x11,
	.print_full = udp,
	.print_less = udp_less,
};
tree/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/arch/sh/configs/sdk7786_defconfig'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/arch?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>arch</a>/<a href='/cgit.cgi/linux/net-next.git/commit/arch/sh?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>sh</a>/<a href='/cgit.cgi/linux/net-next.git/commit/arch/sh/configs?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>configs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>sdk7786_defconfig</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='d966564fcdc19e13eb6ba1fbe6b8101070339c3d'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-08 18:08:29 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-08 18:08:29 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>d966564fcdc19e13eb6ba1fbe6b8101070339c3d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/arch/sh/configs/sdk7786_defconfig?id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=3b802c9455f973fa786eafb4d5bd4634a7dd5130'>3b802c9455f973fa786eafb4d5bd4634a7dd5130</a> (<a href='/cgit.cgi/linux/net-next.git/diff/arch/sh/configs/sdk7786_defconfig?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d&amp;id2=3b802c9455f973fa786eafb4d5bd4634a7dd5130'>diff</a>)</td></tr></table>
<div class='commit-subject'>Revert "x86/ioapic: Restore IO-APIC irq_chip retrigger callback"</div><div class='commit-msg'>This reverts commit 020eb3daaba2857b32c4cf4c82f503d6a00a67de.

Gabriel C reports that it causes his machine to not boot, and we haven't
tracked down the reason for it yet.  Since the bug it fixes has been
around for a longish time, we're better off reverting the fix for now.

Gabriel says:
 "It hangs early and freezes with a lot RCU warnings.

  I bisected it down to :

  &gt; Ruslan Ruslichenko (1):
  &gt;       x86/ioapic: Restore IO-APIC irq_chip retrigger callback

  Reverting this one fixes the problem for me..

  The box is a PRIMERGY TX200 S5 , 2 socket , 2 x E5520 CPU(s) installed"

and Ruslan and Thomas are currently stumped.

Reported-and-bisected-by: Gabriel C &lt;nix.or.die@gmail.com&gt;
Cc: Ruslan Ruslichenko &lt;rruslich@cisco.com&gt;
Cc: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: stable@kernel.org   # for the backport of the original commit
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=d966564fcdc19e13eb6ba1fbe6b8101070339c3d'>Diffstat</a> (limited to 'arch/sh/configs/sdk7786_defconfig')</div><table summary='diffstat' class='diffstat'>