/*
 *  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
ubmit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></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=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/net/datalink.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/net/datalink.h?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/net/datalink.h?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430'>commit</a><a class='active' href='/cgit.cgi/linux/net-next.git/diff/include/net/datalink.h?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430&amp;id2=26a346f23c5291d1d9521e72763103daf2c6f0d1'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/net/datalink.h'>
<input type='hidden' name='id' value='2d47b8aac7ba697ffe05f839a3b4c3c628b4e430'/><input type='hidden' name='id2' value='26a346f23c5291d1d9521e72763103daf2c6f0d1'/><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/diff/?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430&amp;id2=26a346f23c5291d1d9521e72763103daf2c6f0d1'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430&amp;id2=26a346f23c5291d1d9521e72763103daf2c6f0d1'>include</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/net?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430&amp;id2=26a346f23c5291d1d9521e72763103daf2c6f0d1'>net</a>/<a href='/cgit.cgi/linux/net-next.git/diff/include/net/datalink.h?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430&amp;id2=26a346f23c5291d1d9521e72763103daf2c6f0d1'>datalink.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='2d47b8aac7ba697ffe05f839a3b4c3c628b4e430'/><input type='hidden' name='id2' value='26a346f23c5291d1d9521e72763103daf2c6f0d1'/><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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=2d47b8aac7ba697ffe05f839a3b4c3c628b4e430&amp;id2=26a346f23c5291d1d9521e72763103daf2c6f0d1'>Diffstat</a> (limited to 'include/net/datalink.h')</div><table summary='diffstat' class='diffstat'>