/*
 * 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>
#include <linux/if_ether.h>

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

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)",
		lookup_vendor_str((src_mac[0] << 16) | (src_mac[1] << 8) |
			      src_mac[2]),
		lookup_vendor_str((dst_mac[0] << 16) | (dst_mac[1] << 8) |
			      dst_mac[2]));
	tprintf(" ]\n");

	pkt_set_proto(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 ", 
		lookup_vendor_str((src_mac[0] << 16) | (src_mac[1] << 8) |
			      src_mac[2]),
		lookup_vendor_str((dst_mac[0] << 16) | (dst_mac[1] << 8) |
			      dst_mac[2]));
	tprintf("%s%s%s", colorize_start(bold), 
		lookup_ether_type(ntohs(eth->h_proto)), colorize_end());

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

struct protocol ethernet_ops = {
	.key = 0,
	.print_full = ethernet,
	.print_less = ethernet_less,
};
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>Documentation</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/DocBook?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>DocBook</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation/DocBook/media?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>media</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='49920d28781dcced10cd30cb9a938e7d045a1c94'/><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>Hugh Dickins &lt;hughd@google.com&gt;</td><td class='right'>2016-12-12 16:44:50 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-12 18:55:09 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/DocBook/media?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>49920d28781dcced10cd30cb9a938e7d045a1c94</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation/DocBook/media?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>b972f988f97c0b9180fe8e00dee4c8941dc32aef</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation/DocBook/media?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>Documentation/DocBook/media</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation/DocBook/media?id=a66c0410b97c07a5708881198528ce724f7a3226'>a66c0410b97c07a5708881198528ce724f7a3226</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation/DocBook/media?id=49920d28781dcced10cd30cb9a938e7d045a1c94&amp;id2=a66c0410b97c07a5708881198528ce724f7a3226'>diff</a>)</td></tr></table>
<div class='commit-subject'>mm: make transparent hugepage size public</div><div class='commit-msg'>Test programs want to know the size of a transparent hugepage.  While it
is commonly the same as the size of a hugetlbfs page (shown as
Hugepagesize in /proc/meminfo), that is not always so: powerpc
implements transparent hugepages in a different way from hugetlbfs
pages, so it's coincidence when their sizes are the same; and x86 and
others can support more than one hugetlbfs page size.

Add /sys/kernel/mm/transparent_hugepage/hpage_pmd_size to show the THP
size in bytes - it's the same for Anonymous and Shmem hugepages.  Call
it hpage_pmd_size (after HPAGE_PMD_SIZE) rather than hpage_size, in case
some transparent support for pud and pgd pages is added later.

Link: http://lkml.kernel.org/r/alpine.LSU.2.11.1612052200290.13021@eggly.anvils
Signed-off-by: Hugh Dickins &lt;hughd@google.com&gt;
Acked-by: Michal Hocko &lt;mhocko@suse.com&gt;
Acked-by: Vlastimil Babka &lt;vbabka@suse.cz&gt;
Cc: Greg Thelen &lt;gthelen@google.com&gt;
Cc: David Rientjes &lt;rientjes@google.com&gt;
Cc: "Kirill A. Shutemov" &lt;kirill.shutemov@linux.intel.com&gt;
Cc: Andrea Arcangeli &lt;aarcange@redhat.com&gt;
Cc: "Aneesh Kumar K.V" &lt;aneesh.kumar@linux.vnet.ibm.com&gt;
Cc: Dave Hansen &lt;dave.hansen@intel.com&gt;
Cc: Dan Williams &lt;dan.j.williams@intel.com&gt;
Cc: Jan Kara &lt;jack@suse.cz&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
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/?id=49920d28781dcced10cd30cb9a938e7d045a1c94'>Diffstat</a> (limited to 'Documentation/DocBook/media')</div><table summary='diffstat' class='diffstat'>