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Commit b169f6db authored by David S. Miller's avatar David S. Miller
Browse files

netfilter: ip6table_mangle: Fix set-but-unused variables. 



The variable 'flowlabel' is set but unused in ip6t_mangle_out().

The intention here was to compare this key to the header value after
mangling, and trigger a route lookup on mismatch.

Make it so.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f3c85dd5

net/ipv6/netfilter/ip6table_mangle.c

+2 −1
Original line number Diff line number Diff line
@@ -64,7 +64,8 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out) 
	    (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||

	     memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||

	     skb->mark != mark ||

	     ipv6_hdr(skb)->hop_limit != hop_limit))

	     ipv6_hdr(skb)->hop_limit != hop_limit ||

	     flowlabel != *((u_int32_t *)ipv6_hdr(skb))))

		return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;



	return ret;