From: Liping Zhang Date: Sat, 7 Jan 2017 13:33:54 +0000 (+0800) Subject: netfilter: pkttype: unnecessary to check ipv6 multicast address X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9a6d87626252496311cd122aaa9fbf21ae19e449;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git netfilter: pkttype: unnecessary to check ipv6 multicast address Since there's no broadcast address in IPV6, so in ipv6 family, the PACKET_LOOPBACK must be multicast packets, there's no need to check it again. Signed-off-by: Liping Zhang Signed-off-by: Pablo Neira Ayuso --- diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c index 66c7f4b4c49b..9a22b24346b8 100644 --- a/net/netfilter/nft_meta.c +++ b/net/netfilter/nft_meta.c @@ -154,10 +154,7 @@ void nft_meta_get_eval(const struct nft_expr *expr, *dest = PACKET_BROADCAST; break; case NFPROTO_IPV6: - if (ipv6_hdr(skb)->daddr.s6_addr[0] == 0xFF) - *dest = PACKET_MULTICAST; - else - *dest = PACKET_BROADCAST; + *dest = PACKET_MULTICAST; break; default: WARN_ON(1); diff --git a/net/netfilter/xt_pkttype.c b/net/netfilter/xt_pkttype.c index 57efb703ff18..1ef99151b3ba 100644 --- a/net/netfilter/xt_pkttype.c +++ b/net/netfilter/xt_pkttype.c @@ -33,8 +33,7 @@ pkttype_mt(const struct sk_buff *skb, struct xt_action_param *par) else if (xt_family(par) == NFPROTO_IPV4 && ipv4_is_multicast(ip_hdr(skb)->daddr)) type = PACKET_MULTICAST; - else if (xt_family(par) == NFPROTO_IPV6 && - ipv6_hdr(skb)->daddr.s6_addr[0] == 0xFF) + else if (xt_family(par) == NFPROTO_IPV6) type = PACKET_MULTICAST; else type = PACKET_BROADCAST;