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authorJiri Benc <jbenc@redhat.com>2016-11-10 18:28:21 +0300
committerDavid S. Miller <davem@davemloft.net>2016-11-13 08:51:02 +0300
commit5108bbaddc37c1c8583f0cf2562d7d3463cd12cb (patch)
tree6f3b06a52f5ef5b64c66eefb94f51c76dad00d79 /net/openvswitch/vport.c
parent1560a074df6297e76278e459ca3eb9ff83a6f878 (diff)
downloadlinux-5108bbaddc37c1c8583f0cf2562d7d3463cd12cb.tar.xz
openvswitch: add processing of L3 packets
Support receiving, extracting flow key and sending of L3 packets (packets without an Ethernet header). Note that even after this patch, non-Ethernet interfaces are still not allowed to be added to bridges. Similarly, netlink interface for sending and receiving L3 packets to/from user space is not in place yet. Based on previous versions by Lorand Jakab and Simon Horman. Signed-off-by: Lorand Jakab <lojakab@cisco.com> Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch/vport.c')
-rw-r--r--net/openvswitch/vport.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 898ed377b5cc..b6c8524032a0 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -485,6 +485,25 @@ void ovs_vport_send(struct vport *vport, struct sk_buff *skb, u8 mac_proto)
{
int mtu = vport->dev->mtu;
+ switch (vport->dev->type) {
+ case ARPHRD_NONE:
+ if (mac_proto == MAC_PROTO_ETHERNET) {
+ skb_reset_network_header(skb);
+ skb_reset_mac_len(skb);
+ skb->protocol = htons(ETH_P_TEB);
+ } else if (mac_proto != MAC_PROTO_NONE) {
+ WARN_ON_ONCE(1);
+ goto drop;
+ }
+ break;
+ case ARPHRD_ETHER:
+ if (mac_proto != MAC_PROTO_ETHERNET)
+ goto drop;
+ break;
+ default:
+ goto drop;
+ }
+
if (unlikely(packet_length(skb, vport->dev) > mtu &&
!skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",