netfilter: xt_hashlimit: use proto_ports_offset() to support AH message (aca071c1) · Commits · e / devices / android_kernel_fairphone_FP5

net/netfilter/xt_hashlimit.c

+5 −10

Original line number	Diff line number	Diff line
		@@ -448,6 +448,7 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
		{
		__be16 _ports[2], *ports;
		u8 nexthdr;
		int poff;

		memset(dst, 0, sizeof(*dst));

		@@ -492,19 +493,13 @@ hashlimit_init_dst(const struct xt_hashlimit_htable *hinfo,
		return 0;
		}

		switch (nexthdr) {
		case IPPROTO_TCP:
		case IPPROTO_UDP:
		case IPPROTO_UDPLITE:
		case IPPROTO_SCTP:
		case IPPROTO_DCCP:
		ports = skb_header_pointer(skb, protoff, sizeof(_ports),
		poff = proto_ports_offset(nexthdr);
		if (poff >= 0) {
		ports = skb_header_pointer(skb, protoff + poff, sizeof(_ports),
		&_ports);
		break;
		default:
		} else {
		_ports[0] = _ports[1] = 0;
		ports = _ports;
		break;
		}
		if (!ports)
		return -1;