aboutsummaryrefslogtreecommitdiffstats
path: root/net/ipv6/mip6.c
diff options
context:
space:
mode:
authorMasahide NAKAMURA <nakam@linux-ipv6.org>2007-02-07 00:07:39 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2007-02-08 12:39:05 -0800
commitf48d5ff1e44562a0ee87ce8ea3b798ce9d84370d (patch)
tree4b86cd593065f759e8de73231a67a1f95a02f234 /net/ipv6/mip6.c
parentcc63f70b8b410eb653449151821f6b8b9af6ca42 (diff)
[IPV6] RAW: Add checksum default defines for MH.
Add checksum default defines for mobility header(MH) which goes through raw socket. As the result kernel's behavior is to handle MH checksum as default. This patch also removes verifying inbound MH checksum at mip6_mh_filter() since it did not consider user specified checksum offset and was redundant check with raw socket code. 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>
Diffstat (limited to 'net/ipv6/mip6.c')
-rw-r--r--net/ipv6/mip6.c26
1 files changed, 0 insertions, 26 deletions
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index be7dd7db65d7..681bb077eacc 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -89,7 +89,6 @@ static int mip6_mh_len(int type)
int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
{
struct ip6_mh *mh;
- int mhlen;
if (!pskb_may_pull(skb, (skb->h.raw - skb->data) + 8) ||
!pskb_may_pull(skb, (skb->h.raw - skb->data) + ((skb->h.raw[1] + 1) << 3)))
@@ -103,31 +102,6 @@ int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
mip6_param_prob(skb, 0, (&mh->ip6mh_hdrlen) - skb->nh.raw);
return -1;
}
- mhlen = (mh->ip6mh_hdrlen + 1) << 3;
-
- if (skb->ip_summed == CHECKSUM_COMPLETE) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- if (csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- mhlen, IPPROTO_MH,
- skb->csum)) {
- LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH hw checksum failed\n");
- skb->ip_summed = CHECKSUM_NONE;
- }
- }
- if (skb->ip_summed == CHECKSUM_NONE) {
- if (csum_ipv6_magic(&skb->nh.ipv6h->saddr,
- &skb->nh.ipv6h->daddr,
- mhlen, IPPROTO_MH,
- skb_checksum(skb, 0, mhlen, 0))) {
- LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH checksum failed "
- "[" NIP6_FMT " > " NIP6_FMT "]\n",
- NIP6(skb->nh.ipv6h->saddr),
- NIP6(skb->nh.ipv6h->daddr));
- return -1;
- }
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- }
if (mh->ip6mh_proto != IPPROTO_NONE) {
LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH invalid payload proto = %d\n",

Privacy Policy