/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2012 Markus Amend <markus@netsniff-ng.org>, Deutsche Flugsicherung GmbH
 * Subject to the GPL, version 2.
 *
 * http://www.ieee802.org/1/pages/802.1ad.html
 */

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

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

struct QinQhdr {
	uint16_t TCI;
	uint16_t TPID;
} __packed;

static void QinQ_full(struct pkt_buff *pkt)
{
	uint16_t tci;
	struct QinQhdr *QinQ = (struct QinQhdr *) pkt_pull(pkt, sizeof(*QinQ));

	if (QinQ == NULL)
		return;

	tci = ntohs(QinQ->TCI);

	tprintf(" [ VLAN QinQ ");
	tprintf("Prio (%d), ", (tci & 0xE000) >> 13);
	tprintf("DEI (%d), ", (tci & 0x1000) >> 12);
	tprintf("ID (%d), ", (tci & 0x0FFF));
	tprintf("Proto (0x%.4x)", ntohs(QinQ->TPID));
	tprintf(" ]\n");

	pkt_set_proto(pkt, &eth_lay2, ntohs(QinQ->TPID));
}

static void QinQ_less(struct pkt_buff *pkt)
{
	uint16_t tci;
	struct QinQhdr *QinQ = (struct QinQhdr *) pkt_pull(pkt, sizeof(*QinQ));

	if (QinQ == NULL)
		return;

	tci = ntohs(QinQ->TCI);

	tprintf(" VLAN%d", (tci & 0x0FFF));

	pkt_set_proto(pkt, &eth_lay2, ntohs(QinQ->TPID));
}

struct protocol QinQ_ops = {
	.key = 0x88a8,
	.print_full = QinQ_full,
	.print_less = QinQ_less,
};
ump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=packet-loop-back'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/Documentation?h=packet-loop-back'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/Documentation'>
<input type='hidden' name='h' value='packet-loop-back'/><input type='hidden' name='id' value='f32a10df2ed6b87a10c1ca11757b0bbb035486a4'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>Documentation</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='packet-loop-back'/><input type='hidden' name='id' value='f32a10df2ed6b87a10c1ca11757b0bbb035486a4'/><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'>2016-09-17 12:59:57 -0700</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-09-17 12:59:57 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>f32a10df2ed6b87a10c1ca11757b0bbb035486a4</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation?id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>19af8cda0d8700c27fcd3785b746576d134c3116</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>Documentation</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=packet-loop-back&amp;id=baf009f92731c0fc1f036d8b7dba3bf5bb2c2a5e'>baf009f92731c0fc1f036d8b7dba3bf5bb2c2a5e</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4&amp;id2=baf009f92731c0fc1f036d8b7dba3bf5bb2c2a5e'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=packet-loop-back&amp;id=df804d5e27490151da1ce9f216031a31352203e6'>df804d5e27490151da1ce9f216031a31352203e6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4&amp;id2=df804d5e27490151da1ce9f216031a31352203e6'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'mmc-v4.8-rc6' of git://git.linaro.org/people/ulf.hansson/mmc</div><div class='commit-msg'>Pull MMC fixes from Ulf Hansson:
 "MMC host:
   - omap/omap_hsmmc: Initialize dma_slave_config to avoid random data
   - sdhci-st: Handle interconnect clock"

* tag 'mmc-v4.8-rc6' of git://git.linaro.org/people/ulf.hansson/mmc:
  mmc: omap: Initialize dma_slave_config to avoid random data in it's fields
  mmc: omap_hsmmc: Initialize dma_slave_config to avoid random data
  mmc: sdhci-st: Handle interconnect clock
  dt-bindings: mmc: sdhci-st: Mention the discretionary "icn" clock
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=packet-loop-back&amp;id=f32a10df2ed6b87a10c1ca11757b0bbb035486a4'>Diffstat</a> (limited to 'Documentation')</div><table summary='diffstat' class='diffstat'>