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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2007-10-17 21:29:25 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-10-17 21:29:25 -0700 |
| commit | 33b5ecb8f64706d1ed472dcb44162ab3a7345724 (patch) | |
| tree | 065d9cc0592bc08db34a562ff8753279cf52509c /net/ipv6/xfrm6_input.c | |
| parent | c4541b41c0e4b75b11125fed16db642fc03cb31c (diff) | |
| download | lwn-33b5ecb8f64706d1ed472dcb44162ab3a7345724.tar.gz lwn-33b5ecb8f64706d1ed472dcb44162ab3a7345724.zip | |
[IPSEC]: Get nexthdr from caller in xfrm6_rcv_spi
Currently xfrm6_rcv_spi gets the nexthdr value itself from the packet.
This means that we need to fix up the value in case we have a 4-on-6
tunnel. Moving this logic into the caller simplifies things and allows
us to merge the code with IPv4.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/xfrm6_input.c')
| -rw-r--r-- | net/ipv6/xfrm6_input.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c index 02f69e544f6f..596a730294ec 100644 --- a/net/ipv6/xfrm6_input.c +++ b/net/ipv6/xfrm6_input.c @@ -16,7 +16,7 @@ #include <net/ipv6.h> #include <net/xfrm.h> -int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi) +int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi) { int err; __be32 seq; @@ -24,11 +24,9 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi) struct xfrm_state *x; int xfrm_nr = 0; int decaps = 0; - int nexthdr; unsigned int nhoff; nhoff = IP6CB(skb)->nhoff; - nexthdr = skb_network_header(skb)[nhoff]; seq = 0; if (!spi && (err = xfrm_parse_spi(skb, nexthdr, &spi, &seq)) != 0) @@ -41,7 +39,7 @@ int xfrm6_rcv_spi(struct sk_buff *skb, __be32 spi) goto drop; x = xfrm_state_lookup((xfrm_address_t *)&iph->daddr, spi, - nexthdr != IPPROTO_IPIP ? nexthdr : IPPROTO_IPV6, AF_INET6); + nexthdr, AF_INET6); if (x == NULL) goto drop; spin_lock(&x->lock); @@ -135,7 +133,8 @@ EXPORT_SYMBOL(xfrm6_rcv_spi); int xfrm6_rcv(struct sk_buff *skb) { - return xfrm6_rcv_spi(skb, 0); + return xfrm6_rcv_spi(skb, skb_network_header(skb)[IP6CB(skb)->nhoff], + 0); } EXPORT_SYMBOL(xfrm6_rcv); |