openvswitch: add ipv6 'set' action

This patch adds ipv6 set action functionality. It allows to change
traffic class, flow label, hop-limit, ipv6 source and destination
address fields.

Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 4c4b62ccc7d7..fd4a6a4ce3cd 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -479,6 +479,7 @@ static int validate_set(const struct nlattr *a,
 
         switch (key_type) {
         const struct ovs_key_ipv4 *ipv4_key;
+        const struct ovs_key_ipv6 *ipv6_key;
 
         case OVS_KEY_ATTR_PRIORITY:
         case OVS_KEY_ATTR_ETHERNET:
@@ -500,6 +501,25 @@ static int validate_set(const struct nlattr *a,
 
                 break;
 
+        case OVS_KEY_ATTR_IPV6:
+                if (flow_key->eth.type != htons(ETH_P_IPV6))
+                        return -EINVAL;
+
+                if (!flow_key->ip.proto)
+                        return -EINVAL;
+
+                ipv6_key = nla_data(ovs_key);
+                if (ipv6_key->ipv6_proto != flow_key->ip.proto)
+                        return -EINVAL;
+
+                if (ipv6_key->ipv6_frag != flow_key->ip.frag)
+                        return -EINVAL;
+
+                if (ntohl(ipv6_key->ipv6_label) & 0xFFF00000)
+                        return -EINVAL;
+
+                break;
+
         case OVS_KEY_ATTR_TCP:
                 if (flow_key->ip.proto != IPPROTO_TCP)
                         return -EINVAL;