From d3052bb5d306b29c1e7d9e5998c5ac4ca1ff0ca9 Mon Sep 17 00:00:00 2001 From: Joe Stringer Date: Wed, 19 Nov 2014 13:54:49 -0800 Subject: openvswitch: Don't validate IPv6 label masks. When userspace doesn't provide a mask, OVS datapath generates a fully unwildcarded mask for the flow by copying the flow and setting all bits in all fields. For IPv6 label, this creates a mask that matches on the upper 12 bits, causing the following error: openvswitch: netlink: Invalid IPv6 flow label value (value=ffffffff, max=fffff) This patch ignores the label validation check for masks, avoiding this error. Signed-off-by: Joe Stringer Acked-by: Pravin B Shelar Signed-off-by: David S. Miller --- net/openvswitch/flow_netlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net') diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c index fa4ec2e4a78b..089b195c064a 100644 --- a/net/openvswitch/flow_netlink.c +++ b/net/openvswitch/flow_netlink.c @@ -690,7 +690,7 @@ static int ovs_key_from_nlattrs(struct sw_flow_match *match, u64 attrs, return -EINVAL; } - if (ipv6_key->ipv6_label & htonl(0xFFF00000)) { + if (!is_mask && ipv6_key->ipv6_label & htonl(0xFFF00000)) { OVS_NLERR("IPv6 flow label %x is out of range (max=%x).\n", ntohl(ipv6_key->ipv6_label), (1 << 20) - 1); return -EINVAL; -- cgit v1.2.3