/*
 *  SR-IPv6 implementation
 *
 *  Author:
 *  David Lebrun <david.lebrun@uclouvain.be>
 *
 *
 *  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_SEG6_H
#define _NET_SEG6_H

#include <linux/net.h>
#include <linux/ipv6.h>
#include <net/lwtunnel.h>
#include <linux/seg6.h>
#include <linux/rhashtable.h>

static inline void update_csum_diff4(struct sk_buff *skb, __be32 from,
				     __be32 to)
{
	__be32 diff[] = { ~from, to };

	skb->csum = ~csum_partial((char *)diff, sizeof(diff), ~skb->csum);
}

static inline void update_csum_diff16(struct sk_buff *skb, __be32 *from,
				      __be32 *to)
{
	__be32 diff[] = {
		~from[0], ~from[1], ~from[2], ~from[3],
		to[0], to[1], to[2], to[3],
	};

	skb->csum = ~csum_partial((char *)diff, sizeof(diff), ~skb->csum);
}

struct seg6_pernet_data {
	struct mutex lock;
	struct in6_addr __rcu *tun_src;
#ifdef CONFIG_IPV6_SEG6_HMAC
	struct rhashtable hmac_infos;
#endif
};

static inline struct seg6_pernet_data *seg6_pernet(struct net *net)
{
	return net->ipv6.seg6_data;
}

extern int seg6_init(void);
extern void seg6_exit(void);
extern int seg6_iptunnel_init(void);
extern void seg6_iptunnel_exit(void);

extern bool seg6_validate_srh(struct ipv6_sr_hdr *srh, int len);

#endif
r></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/include/net/llc_c_st.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/net/llc_c_st.h?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/net/llc_c_st.h?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/net/llc_c_st.h?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/net/llc_c_st.h'>
<input type='hidden' name='id' value='8fe809a992639b2013c0d8da2ba55cdea28a959a'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>net</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/net/llc_c_st.h?id=8fe809a992639b2013c0d8da2ba55cdea28a959a'>llc_c_st.h</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/net/llc_c_st.h?id=8fe809a992639b2013c0d8da2ba55cdea28a959a&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>