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ipv6 sit: Fix 6rd relay address. 

ipv6 sit: Fix 6rd relay address.

Relay's address should be extracted from real IPv6 address
instead of configured prefix.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明 2009-10-11 03:44:45 +00:00 committed by David S. Miller
parent e0c9394815
commit e7db38c38f
1 changed files with 2 additions and 2 deletions
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4
net/ipv6/sit.c
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@ -569,12 +569,12 @@ __be32 try_6rd(struct in6_addr *v6dst, struct ip_tunnel *tunnel)
pbw0 = tunnel->ip6rd.prefixlen >> 5;
pbi0 = tunnel->ip6rd.prefixlen & 0x1f;
d = (ntohl(tunnel->ip6rd.prefix.s6_addr32[pbw0]) << pbi0) >>
d = (ntohl(v6dst->s6_addr32[pbw0]) << pbi0) >>
tunnel->ip6rd.relay_prefixlen;
pbi1 = pbi0 - tunnel->ip6rd.relay_prefixlen;
if (pbi1 > 0)
d |= ntohl(tunnel->ip6rd.prefix.s6_addr32[pbw0 + 1]) >>
d |= ntohl(v6dst->s6_addr32[pbw0 + 1]) >>
(32 - pbi1);
dst = tunnel->ip6rd.relay_prefix | htonl(d);