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authorJesse Gross <jesse@nicira.com>2011-11-30 17:05:51 -0800
committerJesse Gross <jesse@nicira.com>2011-12-03 09:35:10 -0800
commit75f2811c6460ccc59d83c66059943ce9c9f81a18 (patch)
tree49373cf5f5b11358aeb587209ad270496f751609 /net/ipv6/ip6_input.c
parent396cf9430505cfba529a2f2a037d782719fa5844 (diff)
downloadlinux-stericsson-75f2811c6460ccc59d83c66059943ce9c9f81a18.tar.gz
ipv6: Add fragment reporting to ipv6_skip_exthdr().
While parsing through IPv6 extension headers, fragment headers are skipped making them invisible to the caller. This reports the fragment offset of the last header in order to make it possible to determine whether the packet is fragmented and, if so whether it is a first or last fragment. Signed-off-by: Jesse Gross <jesse@nicira.com>
Diffstat (limited to 'net/ipv6/ip6_input.c')
-rw-r--r--net/ipv6/ip6_input.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index a46c64eb0a66..1ca5d45a12e8 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -280,6 +280,7 @@ int ip6_mc_input(struct sk_buff *skb)
u8 *ptr = skb_network_header(skb) + opt->ra;
struct icmp6hdr *icmp6;
u8 nexthdr = hdr->nexthdr;
+ __be16 frag_off;
int offset;
/* Check if the value of Router Alert
@@ -293,7 +294,7 @@ int ip6_mc_input(struct sk_buff *skb)
goto out;
}
offset = ipv6_skip_exthdr(skb, sizeof(*hdr),
- &nexthdr);
+ &nexthdr, &frag_off);
if (offset < 0)
goto out;