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;
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;