[IPV6] ensure to evaluate the checksum for sockets with the IPV6_CHECKSUM option.

acfaa331 · Hideaki Yoshifuji · ec1a2191 · acfaa331
Commit acfaa331 authored May 21, 2004 by Hideaki Yoshifuji
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net/ipv6/raw.c net/ipv6/raw.c +2 -1

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--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -283,7 +283,8 @@ void rawv6_err(struct sock *sk, struct sk_buff *skb,

 static inline int rawv6_rcv_skb(struct sock * sk, struct sk_buff * skb)
 {
-	if (sk->sk_filter && skb->ip_summed != CHECKSUM_UNNECESSARY) {
+	if ((raw6_sk(sk)->checksum || sk->sk_filter) && 
+	    skb->ip_summed != CHECKSUM_UNNECESSARY) {
 		if ((unsigned short)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum))) {
 			/* FIXME: increment a raw6 drops counter here */
 			kfree_skb(skb);