/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Copyright 2010 Emmanuel Roullit.
 * 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 "dissector_eth.h"
#include "pkt_buff.h"

struct vlanhdr {
	uint16_t h_vlan_TCI;
	uint16_t h_vlan_encapsulated_proto;
} __attribute__((packed));

static void vlan(struct pkt_buff *pkt)
{
	uint16_t tci;
	struct vlanhdr *vlan = (struct vlanhdr *) pkt_pull(pkt, sizeof(*vlan));

	if (vlan == NULL)
		return;

	tci = ntohs(vlan->h_vlan_TCI);

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

	pkt_set_proto(pkt, &eth_lay2, ntohs(vlan->h_vlan_encapsulated_proto));
}

static void vlan_less(struct pkt_buff *pkt)
{
	uint16_t tci;
	struct vlanhdr *vlan = (struct vlanhdr *) pkt_pull(pkt, sizeof(*vlan));

	if (vlan == NULL)
		return;

	tci = ntohs(vlan->h_vlan_TCI);

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

	pkt_set_proto(pkt, &eth_lay2, ntohs(vlan->h_vlan_encapsulated_proto));
}

struct protocol vlan_ops = {
	.key = 0x8100,
	.print_full = vlan,
	.print_less = vlan_less,
};
t 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=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/arch/powerpc?h=nds-private-remove'>log</a><a class='active' href='/cgit.cgi/linux/net-next.git/tree/arch/powerpc?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/arch/powerpc?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/arch/powerpc?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/arch/powerpc'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='8fe809a992639b2013c0d8da2ba55cdea28a959a'/><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/tree/?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/tree/arch?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>arch</a>/<a href='/cgit.cgi/linux/net-next.git/tree/arch/powerpc?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>powerpc</a></div><div class='content'><table summary='tree listing' class='list'>
<tr class='nohover'><th class='left'>Mode</th><th class='left'>Name</th><th class='right'>Size</th><th/></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob' href='/cgit.cgi/linux/net-next.git/tree/arch/powerpc/Kconfig?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>Kconfig</a></td><td class='ls-size'>30826</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/arch/powerpc/Kconfig?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/arch/powerpc/Kconfig?h=nds-private-remove&amp;id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>plain</a></td></tr>