openvswitch: Enable retrieval of TCP flags from IPv6 traffic.



We currently check that a packet is IPv4 and TCP before fetching the
TCP flags.  This enables fetching from IPv6 packets as well.

Reported-by: Michael Mao <mmao@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

parent bf32fecd

net/openvswitch/flow.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -182,7 +182,8 @@ void ovs_flow_used(struct sw_flow flow, struct sk_buff skb)
		{
		u8 tcp_flags = 0;

		if (flow->key.eth.type == htons(ETH_P_IP) &&
		if ((flow->key.eth.type == htons(ETH_P_IP) \|\|
		flow->key.eth.type == htons(ETH_P_IPV6)) &&
		flow->key.ip.proto == IPPROTO_TCP &&
		likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
		u8 tcp = (u8 )tcp_hdr(skb);