/*
 * 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,
};
6'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/'>
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<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='78098117f8bfad4f2104c3f7b6b69071af95a246'/><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>Xin Long &lt;lucien.xin@gmail.com&gt;</td><td class='right'>2017-02-09 01:18:19 +0800</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-02-09 16:57:38 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>78098117f8bfad4f2104c3f7b6b69071af95a246</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=78098117f8bfad4f2104c3f7b6b69071af95a246'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>44a7411a635afc5a239240458938c667dbff2ade</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=a92ce1a42dde1caaee4afae67531e3e7acecf6e4'>a92ce1a42dde1caaee4afae67531e3e7acecf6e4</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246&amp;id2=a92ce1a42dde1caaee4afae67531e3e7acecf6e4'>diff</a>)</td></tr></table>
<div class='commit-subject'>sctp: add support for generating stream reconf add incoming/outgoing streams request chunk</div><div class='commit-msg'>This patch is to define Add Incoming/Outgoing Streams Request
Parameter described in rfc6525 section 4.5 and 4.6. They can
be in one same chunk trunk as rfc6525 section 3.1-7 describes,
so make them in one function.

Signed-off-by: Xin Long &lt;lucien.xin@gmail.com&gt;
Acked-by: Marcelo Ricardo Leitner &lt;marcelo.leitner@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>Diffstat</a></div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/linux/sctp.h?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>include/linux/sctp.h</a></td><td class='right'>7</td><td class='graph'><table summary='file diffstat' width='46%'><tr><td class='add' style='width: 15.2%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 84.8%;'/></tr></table></td></tr>
<tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/include/net/sctp/sm.h?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>include/net/sctp/sm.h</a></td><td class='right'>3</td><td class='graph'><table summary='file diffstat' width='46%'><tr><td class='add' style='width: 6.5%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 93.5%;'/></tr></table></td></tr>
<tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/cgit.cgi/linux/net-next.git/diff/net/sctp/sm_make_chunk.c?h=nds-private-remove&amp;id=78098117f8bfad4f2104c3f7b6b69071af95a246'>net/sctp/sm_make_chunk.c</a></td><td class='right'>46</td><td class='graph'><table summary='file diffstat' width='46%'><tr><td class='add' style='width: 100.0%;'/><td class='rem' style='width: 0.0%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
</table><div class='diffstat-summary'>3 files changed, 56 insertions, 0 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/include/linux/sctp.h b/include/linux/sctp.h