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authorPravin B Shelar <pshelar@nicira.com>2013-06-17 17:50:33 -0700
committerDavid S. Miller <davem@davemloft.net>2013-06-19 18:07:42 -0700
commitaa310701e787087dbfbccf1409982a96e16c57a6 (patch)
treef426945de6694203f2c34218b4e4b06913b8f58c /net/openvswitch/flow.h
parenta3e82996a8874c4cfe8c7f1be4d552018d8cba7e (diff)
openvswitch: Add gre tunnel support.
Add gre vport implementation. Most of gre protocol processing is pushed to gre module. It make use of gre demultiplexer therefore it can co-exist with linux device based gre tunnels. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch/flow.h')
-rw-r--r--net/openvswitch/flow.h18
1 files changed, 17 insertions, 1 deletions
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 999842f247a0..66ef7220293e 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -49,11 +49,27 @@ struct ovs_key_ipv4_tunnel {
__be64 tun_id;
__be32 ipv4_src;
__be32 ipv4_dst;
- u16 tun_flags;
+ __be16 tun_flags;
u8 ipv4_tos;
u8 ipv4_ttl;
};
+static inline void ovs_flow_tun_key_init(struct ovs_key_ipv4_tunnel *tun_key,
+ const struct iphdr *iph, __be64 tun_id,
+ __be16 tun_flags)
+{
+ tun_key->tun_id = tun_id;
+ tun_key->ipv4_src = iph->saddr;
+ tun_key->ipv4_dst = iph->daddr;
+ tun_key->ipv4_tos = iph->tos;
+ tun_key->ipv4_ttl = iph->ttl;
+ tun_key->tun_flags = tun_flags;
+
+ /* clear struct padding. */
+ memset((unsigned char *) tun_key + OVS_TUNNEL_KEY_SIZE, 0,
+ sizeof(*tun_key) - OVS_TUNNEL_KEY_SIZE);
+}
+
struct sw_flow_key {
struct ovs_key_ipv4_tunnel tun_key; /* Encapsulating tunnel key. */
struct {