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[IPV6] MIP6: Add receiving mobility header functions through raw socket.

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Like ICMPv6, mobility header is handled through raw socket.
In inbound case, check only whether ICMPv6 error should be sent as a reply
or not by kernel.
Based on MIPL2 kernel patch.

This patch was also written by: Ville Nuorvala <vnuorval@tcs.hut.fi>
This patch was also written by: Antti Tuominen <anttit@tcs.hut.fi>

Signed-off-by: Masahide NAKAMURA <nakam@linux-ipv6.org>
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Masahide NAKAMURA
2006-08-23 20:35:31 -07:00
committed by David S. Miller
parent 2b741653b6
commit 7be96f7628
3 changed files with 115 additions and 1 deletions
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29
net/ipv6/raw.c
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@ -50,6 +50,9 @@
#include <net/udp.h>
#include <net/inet_common.h>
#include <net/tcp_states.h>
#ifdef CONFIG_IPV6_MIP6
#include <net/mip6.h>
#endif
#include <net/rawv6.h>
#include <net/xfrm.h>
@ -169,8 +172,32 @@ int ipv6_raw_deliver(struct sk_buff *skb, int nexthdr)
sk = __raw_v6_lookup(sk, nexthdr, daddr, saddr, IP6CB(skb)->iif);
while (sk) {
int filtered;
delivered = 1;
if (nexthdr != IPPROTO_ICMPV6 || !icmpv6_filter(sk, skb)) {
switch (nexthdr) {
case IPPROTO_ICMPV6:
filtered = icmpv6_filter(sk, skb);
break;
#ifdef CONFIG_IPV6_MIP6
case IPPROTO_MH:
/* XXX: To validate MH only once for each packet,
* this is placed here. It should be after checking
* xfrm policy, however it doesn't. The checking xfrm
* policy is placed in rawv6_rcv() because it is
* required for each socket.
*/
filtered = mip6_mh_filter(sk, skb);
break;
#endif
default:
filtered = 0;
break;
}
if (filtered < 0)
break;
if (filtered == 0) {
struct sk_buff *clone = skb_clone(skb, GFP_ATOMIC);
/* Not releasing hash table! */