/*
 * net/sched/act_meta_prio.c IFE skb->priority metadata module
 *
 *		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.
 *
 * copyright Jamal Hadi Salim (2015)
 *
*/

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <linux/init.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <uapi/linux/tc_act/tc_ife.h>
#include <net/tc_act/tc_ife.h>

static int skbprio_check(struct sk_buff *skb, struct tcf_meta_info *e)
{
	return ife_check_meta_u32(skb->priority, e);
}

static int skbprio_encode(struct sk_buff *skb, void *skbdata,
			  struct tcf_meta_info *e)
{
	u32 ifeprio = skb->priority; /* avoid having to cast skb->priority*/

	return ife_encode_meta_u32(ifeprio, skbdata, e);
}

static int skbprio_decode(struct sk_buff *skb, void *data, u16 len)
{
	u32 ifeprio = *(u32 *)data;

	skb->priority = ntohl(ifeprio);
	return 0;
}

static struct tcf_meta_ops ife_prio_ops = {
	.metaid = IFE_META_PRIO,
	.metatype = NLA_U32,
	.name = "skbprio",
	.synopsis = "skb prio metadata",
	.check_presence = skbprio_check,
	.encode = skbprio_encode,
	.decode = skbprio_decode,
	.get = ife_get_meta_u32,
	.alloc = ife_alloc_meta_u32,
	.owner = THIS_MODULE,
};

static int __init ifeprio_init_module(void)
{
	return register_ife_op(&ife_prio_ops);
}

static void __exit ifeprio_cleanup_module(void)
{
	unregister_ife_op(&ife_prio_ops);
}

module_init(ifeprio_init_module);
module_exit(ifeprio_cleanup_module);

MODULE_AUTHOR("Jamal Hadi Salim(2015)");
MODULE_DESCRIPTION("Inter-FE skb prio metadata action");
MODULE_LICENSE("GPL");
MODULE_ALIAS_IFE_META(IFE_META_PRIO);
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/target?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>target</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/target/target_core_fabric.h?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>target_core_fabric.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='10435c1192d06bdb0bac7666452d8219d7e7c477'/><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>Feng &lt;fgao@ikuai8.com&gt;</td><td class='right'>2017-01-20 21:40:43 +0800</td></tr>
<tr><th>committer</th><td>Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;</td><td class='right'>2017-02-02 14:30:19 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/target/target_core_fabric.h?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>10435c1192d06bdb0bac7666452d8219d7e7c477</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/target/target_core_fabric.h?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>93b76419142fe17b1d162d062c663297a3e8a965</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/target/target_core_fabric.h?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>include/target/target_core_fabric.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/target/target_core_fabric.h?id=1a28ad74ebd8f9d3c7eae0d781f72a6d30545e17'>1a28ad74ebd8f9d3c7eae0d781f72a6d30545e17</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/target/target_core_fabric.h?id=10435c1192d06bdb0bac7666452d8219d7e7c477&amp;id2=1a28ad74ebd8f9d3c7eae0d781f72a6d30545e17'>diff</a>)</td></tr></table>
<div class='commit-subject'>netfilter: nf_tables: Eliminate duplicated code in nf_tables_table_enable()</div><div class='commit-msg'>If something fails in nf_tables_table_enable(), it unregisters the
chains. But the rollback code is the same as nf_tables_table_disable()
almostly, except there is one counter check.  Now create one wrapper
function to eliminate the duplicated codes.

Signed-off-by: Feng &lt;fgao@ikuai8.com&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=10435c1192d06bdb0bac7666452d8219d7e7c477'>Diffstat</a> (limited to 'include/target/target_core_fabric.h')</div><table summary='diffstat' class='diffstat'>