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ipv6: introduce neighbour discovery ops

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This patch introduces neighbour discovery ops callback structure. The
idea is to separate the handling for 6LoWPAN into the 6lowpan module.

These callback offers 6lowpan different handling, such as 802.15.4 short
address handling or RFC6775 (Neighbor Discovery Optimization for IPv6
over 6LoWPANs).

Cc: David S. Miller <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Alexander Aring <aar@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Aring
2016-06-15 21:20:23 +02:00
committed by David S. Miller
parent 4f672235cb
commit f997c55c1d
5 changed files with 284 additions and 40 deletions
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8
net/ipv6/route.c
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@@ -2201,7 +2201,7 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
* first-hop router for the specified ICMP Destination Address.
*/
if (!ndisc_parse_options(msg->opt, optlen, &ndopts)) {
if (!ndisc_parse_options(skb->dev, msg->opt, optlen, &ndopts)) {
net_dbg_ratelimited("rt6_redirect: invalid ND options\n");
return;
}
@@ -2236,12 +2236,12 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
* We have finally decided to accept it.
*/
neigh_update(neigh, lladdr, NUD_STALE,
ndisc_update(skb->dev, neigh, lladdr, NUD_STALE,
NEIGH_UPDATE_F_WEAK_OVERRIDE|
NEIGH_UPDATE_F_OVERRIDE|
(on_link ? 0 : (NEIGH_UPDATE_F_OVERRIDE_ISROUTER|
NEIGH_UPDATE_F_ISROUTER))
);
NEIGH_UPDATE_F_ISROUTER)),
NDISC_REDIRECT, &ndopts);
nrt = ip6_rt_cache_alloc(rt, &msg->dest, NULL);
if (!nrt)