/*
 * net/sched/em_u32.c	U32 Ematch
 *
 *		This program is free software; you can redistribute it and/or
 *		modify it under the terms of the GNU General Public License
 *		as published by the Free Software Foundation; either version
 *		2 of the License, or (at your option) any later version.
 *
 * Authors:	Thomas Graf <tgraf@suug.ch>
 *		Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
 *
 * Based on net/sched/cls_u32.c
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>
#include <net/pkt_cls.h>

static int em_u32_match(struct sk_buff *skb, struct tcf_ematch *em,
			struct tcf_pkt_info *info)
{
	struct tc_u32_key *key = (struct tc_u32_key *) em->data;
	const unsigned char *ptr = skb_network_header(skb);

	if (info) {
		if (info->ptr)
			ptr = info->ptr;
		ptr += (info->nexthdr & key->offmask);
	}

	ptr += key->off;

	if (!tcf_valid_offset(skb, ptr, sizeof(u32)))
		return 0;

	return !(((*(__be32 *) ptr)  ^ key->val) & key->mask);
}

static struct tcf_ematch_ops em_u32_ops = {
	.kind	  = TCF_EM_U32,
	.datalen  = sizeof(struct tc_u32_key),
	.match	  = em_u32_match,
	.owner	  = THIS_MODULE,
	.link	  = LIST_HEAD_INIT(em_u32_ops.link)
};

static int __init init_em_u32(void)
{
	return tcf_em_register(&em_u32_ops);
}

static void __exit exit_em_u32(void)
{
	tcf_em_unregister(&em_u32_ops);
}

MODULE_LICENSE("GPL");

module_init(init_em_u32);
module_exit(exit_em_u32);

MODULE_ALIAS_TCF_EMATCH(TCF_EM_U32);
next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=751321b3dd5040dc5be19bd23f985e80c914621a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?id=751321b3dd5040dc5be19bd23f985e80c914621a'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4?id=751321b3dd5040dc5be19bd23f985e80c914621a'>ipv4</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/icmp.c?id=751321b3dd5040dc5be19bd23f985e80c914621a'>icmp.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='751321b3dd5040dc5be19bd23f985e80c914621a'/><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'>2017-01-30 13:18:12 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-30 13:18:12 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/icmp.c?id=751321b3dd5040dc5be19bd23f985e80c914621a'>751321b3dd5040dc5be19bd23f985e80c914621a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/ipv4/icmp.c?id=751321b3dd5040dc5be19bd23f985e80c914621a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=751321b3dd5040dc5be19bd23f985e80c914621a'>967928e24b38dc7fed918f932bb1b243af42bf7f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/ipv4/icmp.c?id=751321b3dd5040dc5be19bd23f985e80c914621a'>net/ipv4/icmp.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/icmp.c?id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4/icmp.c?id=751321b3dd5040dc5be19bd23f985e80c914621a&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv4/icmp.c?id=586655d278ba08af7b198b93217746f9a506ee8a'>586655d278ba08af7b198b93217746f9a506ee8a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv4/icmp.c?id=751321b3dd5040dc5be19bd23f985e80c914621a&amp;id2=586655d278ba08af7b198b93217746f9a506ee8a'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'rtc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux</div><div class='commit-msg'>Pull RTC fix from Alexandre Belloni:
 "A single fix for this cycle. It is worth taking it for 4.10 so that
  distributions will not have CONFIG_RTC_DRV_JZ4740 switching from m to
  y in their config.

  Summary:
   - Allow jz4740 to build as a module again by using kernel_halt()"

* tag 'rtc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: jz4740: make the driver buildable as a module again
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=751321b3dd5040dc5be19bd23f985e80c914621a'>Diffstat</a> (limited to 'net/ipv4/icmp.c')</div><table summary='diffstat' class='diffstat'>