diff options
| author | Jeff Garzik <jgarzik@pobox.com> | 2005-11-11 05:50:22 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-11-11 05:50:22 -0500 |
| commit | f85272a97825d4a67098a8ad70fa5efb55e4847a (patch) | |
| tree | e55b38e21b45213269057417032db4440e8f5eed /net/ipv4/igmp.c | |
| parent | 1c72d8d90da3b29540c3c281a3e0b743ee6b6f74 (diff) | |
| parent | 5e04e7fe774794b837e1d3897e6b96ae2d06679a (diff) | |
Merge branch 'master'
Diffstat (limited to 'net/ipv4/igmp.c')
| -rw-r--r-- | net/ipv4/igmp.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index c6247fc8406..c04607b4921 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -872,11 +872,18 @@ int igmp_rcv(struct sk_buff *skb) return 0; } - if (!pskb_may_pull(skb, sizeof(struct igmphdr)) || - (u16)csum_fold(skb_checksum(skb, 0, len, 0))) { - in_dev_put(in_dev); - kfree_skb(skb); - return 0; + if (!pskb_may_pull(skb, sizeof(struct igmphdr))) + goto drop; + + switch (skb->ip_summed) { + case CHECKSUM_HW: + if (!(u16)csum_fold(skb->csum)) + break; + /* fall through */ + case CHECKSUM_NONE: + skb->csum = 0; + if (__skb_checksum_complete(skb)) + goto drop; } ih = skb->h.igmph; @@ -906,6 +913,8 @@ int igmp_rcv(struct sk_buff *skb) default: NETDEBUG(KERN_DEBUG "New IGMP type=%d, why we do not know about it?\n", ih->type); } + +drop: in_dev_put(in_dev); kfree_skb(skb); return 0; |