/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Copyright 2014 Tobias Klauser
 * Subject to the GPL, version 2.
 */

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>
#include <linux/if_ether.h>

#include "proto.h"
#include "dissector_eth.h"
#include "lookup.h"
#include "pkt_buff.h"
#include "oui.h"

static inline bool is_multicast_ether_addr(const uint8_t *mac)
{
	return mac[0] & 0x01;
}

static inline bool is_broadcast_ether_addr(const uint8_t *mac)
{
	return (mac[0] & mac[1] & mac[2] & mac[3] & mac[4] & mac[5]) == 0xff;
}

static const char *ether_lookup_addr(const uint8_t *mac)
{
	if (is_multicast_ether_addr(mac)) {
		if (is_broadcast_ether_addr(mac))
			return "Broadcast";
		else
			return "Multicast";
	}

	/* found no matching address, so look up the vendor from OUI */
	return lookup_vendor_str((mac[0] << 16) | (mac[1] << 8) | mac[2]);
}

static void ethernet(struct pkt_buff *pkt)
{
	char *type;
	uint8_t *src_mac, *dst_mac;
	struct ethhdr *eth = (struct ethhdr *) pkt_pull(pkt, sizeof(*eth));

	if (eth == NULL)
		return;

	src_mac = eth->h_source;
	dst_mac = eth->h_dest;

	tprintf(" [ Eth ");
	tprintf("MAC (%.2x:%.2x:%.2x:%.2x:%.2x:%.2x => ",
		src_mac[0], src_mac[1], src_mac[2],
		src_mac[3], src_mac[4], src_mac[5]);
	tprintf("%.2x:%.2x:%.2x:%.2x:%.2x:%.2x), ",
		dst_mac[0], dst_mac[1], dst_mac[2],
		dst_mac[3], dst_mac[4], dst_mac[5]);
	tprintf("Proto (0x%.4x", ntohs(eth->h_proto));

	type = lookup_ether_type(ntohs(eth->h_proto));
	if (type)
		tprintf(", %s%s%s", colorize_start(bold), type, colorize_end());

	tprintf(") ]\n");
	tprintf(" [ Vendor ");
	tprintf("(%s => %s)", ether_lookup_addr(src_mac), ether_lookup_addr(dst_mac));
	tprintf(" ]\n");

	pkt_set_dissector(pkt, &eth_lay2, ntohs(eth->h_proto));
}

static void ethernet_less(struct pkt_buff *pkt)
{
	uint8_t *src_mac, *dst_mac;
	struct ethhdr *eth = (struct ethhdr *) pkt_pull(pkt, sizeof(*eth));

	if (eth == NULL)
		return;

	src_mac = eth->h_source;
	dst_mac = eth->h_dest;
	tprintf(" %s => %s ", ether_lookup_addr(src_mac),
		ether_lookup_addr(dst_mac));
	tprintf("%s%s%s", colorize_start(bold),
		lookup_ether_type(ntohs(eth->h_proto)), colorize_end());

	pkt_set_dissector(pkt, &eth_lay2, ntohs(eth->h_proto));
}

struct protocol ethernet_ops = {
	.key = 0,
	.print_full = ethernet,
	.print_less = ethernet_less,
};
on value='range'>range</option>
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</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/arch?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>arch</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3eabf88579032e3c73e7b0a8495f8dbe8c407f46'/><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>Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;</td><td class='right'>2016-08-19 14:22:39 +0530</td></tr>
<tr><th>committer</th><td>Michael Ellerman &lt;mpe@ellerman.id.au&gt;</td><td class='right'>2016-09-23 07:54:18 +1000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>3eabf88579032e3c73e7b0a8495f8dbe8c407f46</a> (<a href='/cgit.cgi/linux/net-next.git/patch/arch?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>ca2213e11463d9f0eda544b0ee6872e621afc49f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/arch?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>arch</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch?id=b970b41ea68ace17f389c8387c1df4a86aa039a0'>b970b41ea68ace17f389c8387c1df4a86aa039a0</a> (<a href='/cgit.cgi/linux/net-next.git/diff/arch?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46&amp;id2=b970b41ea68ace17f389c8387c1df4a86aa039a0'>diff</a>)</td></tr></table>
<div class='commit-subject'>powerpc/64/kexec: Remove BookE special default_machine_kexec_prepare()</div><div class='commit-msg'>The only difference is now the TCE table check which doesn't need
to be ifdef'ed out, it will basically do nothing on BookE (it is
only useful for ancient IBM machines).

Signed-off-by: Benjamin Herrenschmidt &lt;benh@kernel.crashing.org&gt;
Signed-off-by: Aneesh Kumar K.V &lt;aneesh.kumar@linux.vnet.ibm.com&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3eabf88579032e3c73e7b0a8495f8dbe8c407f46'>Diffstat</a> (limited to 'arch')</div><table summary='diffstat' class='diffstat'>