/*
 * Copyright (c) 2016, Amir Vadai <amir@vadai.me>
 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
 *
 * 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.
 */

#ifndef __NET_TC_TUNNEL_KEY_H
#define __NET_TC_TUNNEL_KEY_H

#include <net/act_api.h>
#include <linux/tc_act/tc_tunnel_key.h>
#include <net/dst_metadata.h>

struct tcf_tunnel_key_params {
	struct rcu_head		rcu;
	int			tcft_action;
	int			action;
	struct metadata_dst     *tcft_enc_metadata;
};

struct tcf_tunnel_key {
	struct tc_action	      common;
	struct tcf_tunnel_key_params __rcu *params;
};

#define to_tunnel_key(a) ((struct tcf_tunnel_key *)a)

static inline bool is_tcf_tunnel_set(const struct tc_action *a)
{
#ifdef CONFIG_NET_CLS_ACT
	struct tcf_tunnel_key *t = to_tunnel_key(a);
	struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);

	if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY)
		return params->tcft_action == TCA_TUNNEL_KEY_ACT_SET;
#endif
	return false;
}

static inline bool is_tcf_tunnel_release(const struct tc_action *a)
{
#ifdef CONFIG_NET_CLS_ACT
	struct tcf_tunnel_key *t = to_tunnel_key(a);
	struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);

	if (a->ops && a->ops->type == TCA_ACT_TUNNEL_KEY)
		return params->tcft_action == TCA_TUNNEL_KEY_ACT_RELEASE;
#endif
	return false;
}

static inline struct ip_tunnel_info *tcf_tunnel_info(const struct tc_action *a)
{
#ifdef CONFIG_NET_CLS_ACT
	struct tcf_tunnel_key *t = to_tunnel_key(a);
	struct tcf_tunnel_key_params *params = rtnl_dereference(t->params);

	return &params->tcft_enc_metadata->u.tun_info;
#else
	return NULL;
#endif
}
#endif /* __NET_TC_TUNNEL_KEY_H */
net-next.git/tree/include?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c&amp;showmsg=1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c&amp;showmsg=1'>include</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c'>Collapse</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr class='logheader'><td><span title='2017-02-02 14:31:54 +0100'>2017-02-02</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=c74454fadd5ea6fc866ffe2c417a0dba56b2bf1c'>netfilter: add and use nf_ct_set helper</a></td><td>Florian Westphal</td><td>2</td><td><span class='deletions'>-2</span>/<span class='insertions'>+9</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Add a helper to assign a nf_conn entry and the ctinfo bits to an sk_buff.
This avoids changing code in followup patch that merges skb-&gt;nfct and
skb-&gt;nfctinfo into skb-&gt;_nfct.

Signed-off-by: Florian Westphal &lt;fw@strlen.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2017-02-02 14:31:53 +0100'>2017-02-02</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=cb9c68363efb6d1f950ec55fb06e031ee70db5fc'>skbuff: add and use skb_nfct helper</a></td><td>Florian Westphal</td><td>2</td><td><span class='deletions'>-4</span>/<span class='insertions'>+11</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Followup patch renames skb-&gt;nfct and changes its type so add a helper to
avoid intrusive rename change later.

Signed-off-by: Florian Westphal &lt;fw@strlen.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2017-02-02 14:31:52 +0100'>2017-02-02</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=97a6ad13decc16c5adbf181283932daba7e17faf'>netfilter: reduce direct skb-&gt;nfct usage</a></td><td>Florian Westphal</td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+6</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
Next patch makes direct skb-&gt;nfct access illegal, reduce noise
in next patch by using accessors we already have.

Signed-off-by: Florian Westphal &lt;fw@strlen.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2017-02-02 14:31:51 +0100'>2017-02-02</span></td><td class='logsubject'><a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=11df4b760f11ca7528c62b1c4b870735d1c62116'>netfilter: conntrack: no need to pass ctinfo to error handler</a></td><td>Florian Westphal</td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr class='nohover-highlight'><td/><td colspan='5' class='logmsg'>
It is never accessed for reading and the only places that write to it
are the icmp(6) handlers, which also set skb-&gt;nfct (and skb-&gt;nfctinfo).

The conntrack core specifically checks for attached skb-&gt;nfct after
-&gt;error() invocation and returns early in this case.

Signed-off-by: Florian Westphal &lt;fw@strlen.de&gt;
Signed-off-by: Pablo Neira Ayuso &lt;pablo@netfilter.org&gt;


</td></tr>