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authorFan Du <fan.du@intel.com>2015-01-14 08:10:35 +0300
committerDavid S. Miller <davem@davemloft.net>2015-01-15 00:32:06 +0300
commit3f4c1d87af2a0c8a599b95bfebbc6338de343aca (patch)
treeeb8a54a9c56cec232bbebf303c18f749965a1e59 /net/openvswitch
parent2733135329e9bbc306be9f58af1b4be92b359d23 (diff)
downloadlinux-3f4c1d87af2a0c8a599b95bfebbc6338de343aca.tar.xz
openvswitch: Introduce ovs_tunnel_route_lookup
Introduce ovs_tunnel_route_lookup to consolidate route lookup shared by vxlan, gre, and geneve ports. Signed-off-by: Fan Du <fan.du@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/openvswitch')
-rw-r--r--net/openvswitch/vport-geneve.c13
-rw-r--r--net/openvswitch/vport-gre.c12
-rw-r--r--net/openvswitch/vport-vxlan.c12
-rw-r--r--net/openvswitch/vport.c9
-rw-r--r--net/openvswitch/vport.h18
5 files changed, 25 insertions, 39 deletions
diff --git a/net/openvswitch/vport-geneve.c b/net/openvswitch/vport-geneve.c
index 2daf1440618b..88a010c98c05 100644
--- a/net/openvswitch/vport-geneve.c
+++ b/net/openvswitch/vport-geneve.c
@@ -170,7 +170,7 @@ error:
static int geneve_tnl_send(struct vport *vport, struct sk_buff *skb)
{
- struct ovs_key_ipv4_tunnel *tun_key;
+ const struct ovs_key_ipv4_tunnel *tun_key;
struct ovs_tunnel_info *tun_info;
struct net *net = ovs_dp_get_net(vport->dp);
struct geneve_port *geneve_port = geneve_vport(vport);
@@ -189,16 +189,7 @@ static int geneve_tnl_send(struct vport *vport, struct sk_buff *skb)
}
tun_key = &tun_info->tunnel;
-
- /* Route lookup */
- memset(&fl, 0, sizeof(fl));
- fl.daddr = tun_key->ipv4_dst;
- fl.saddr = tun_key->ipv4_src;
- fl.flowi4_tos = RT_TOS(tun_key->ipv4_tos);
- fl.flowi4_mark = skb->mark;
- fl.flowi4_proto = IPPROTO_UDP;
-
- rt = ip_route_output_key(net, &fl);
+ rt = ovs_tunnel_route_lookup(net, tun_key, skb->mark, &fl, IPPROTO_UDP);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
goto error;
diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index e9aedb7c7106..f17ac9642f4e 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -134,7 +134,7 @@ static int gre_err(struct sk_buff *skb, u32 info,
static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
{
struct net *net = ovs_dp_get_net(vport->dp);
- struct ovs_key_ipv4_tunnel *tun_key;
+ const struct ovs_key_ipv4_tunnel *tun_key;
struct flowi4 fl;
struct rtable *rt;
int min_headroom;
@@ -148,15 +148,7 @@ static int gre_tnl_send(struct vport *vport, struct sk_buff *skb)
}
tun_key = &OVS_CB(skb)->egress_tun_info->tunnel;
- /* Route lookup */
- memset(&fl, 0, sizeof(fl));
- fl.daddr = tun_key->ipv4_dst;
- fl.saddr = tun_key->ipv4_src;
- fl.flowi4_tos = RT_TOS(tun_key->ipv4_tos);
- fl.flowi4_mark = skb->mark;
- fl.flowi4_proto = IPPROTO_GRE;
-
- rt = ip_route_output_key(net, &fl);
+ rt = ovs_tunnel_route_lookup(net, tun_key, skb->mark, &fl, IPPROTO_GRE);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
goto err_free_skb;
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index d7c46b301024..1435a053a870 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -145,7 +145,7 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
struct net *net = ovs_dp_get_net(vport->dp);
struct vxlan_port *vxlan_port = vxlan_vport(vport);
__be16 dst_port = inet_sk(vxlan_port->vs->sock->sk)->inet_sport;
- struct ovs_key_ipv4_tunnel *tun_key;
+ const struct ovs_key_ipv4_tunnel *tun_key;
struct rtable *rt;
struct flowi4 fl;
__be16 src_port;
@@ -158,15 +158,7 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
}
tun_key = &OVS_CB(skb)->egress_tun_info->tunnel;
- /* Route lookup */
- memset(&fl, 0, sizeof(fl));
- fl.daddr = tun_key->ipv4_dst;
- fl.saddr = tun_key->ipv4_src;
- fl.flowi4_tos = RT_TOS(tun_key->ipv4_tos);
- fl.flowi4_mark = skb->mark;
- fl.flowi4_proto = IPPROTO_UDP;
-
- rt = ip_route_output_key(net, &fl);
+ rt = ovs_tunnel_route_lookup(net, tun_key, skb->mark, &fl, IPPROTO_UDP);
if (IS_ERR(rt)) {
err = PTR_ERR(rt);
goto error;
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 464739aac0f3..ec2954ffc690 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -595,14 +595,7 @@ int ovs_tunnel_get_egress_info(struct ovs_tunnel_info *egress_tun_info,
* The process may need to be changed if the corresponding process
* in vports ops changed.
*/
- memset(&fl, 0, sizeof(fl));
- fl.daddr = tun_key->ipv4_dst;
- fl.saddr = tun_key->ipv4_src;
- fl.flowi4_tos = RT_TOS(tun_key->ipv4_tos);
- fl.flowi4_mark = skb_mark;
- fl.flowi4_proto = ipproto;
-
- rt = ip_route_output_key(net, &fl);
+ rt = ovs_tunnel_route_lookup(net, tun_key, skb_mark, &fl, ipproto);
if (IS_ERR(rt))
return PTR_ERR(rt);
diff --git a/net/openvswitch/vport.h b/net/openvswitch/vport.h
index 99c8e71d9e6c..f8ae295fb001 100644
--- a/net/openvswitch/vport.h
+++ b/net/openvswitch/vport.h
@@ -236,4 +236,22 @@ static inline void ovs_skb_postpush_rcsum(struct sk_buff *skb,
int ovs_vport_ops_register(struct vport_ops *ops);
void ovs_vport_ops_unregister(struct vport_ops *ops);
+static inline struct rtable *ovs_tunnel_route_lookup(struct net *net,
+ const struct ovs_key_ipv4_tunnel *key,
+ u32 mark,
+ struct flowi4 *fl,
+ u8 protocol)
+{
+ struct rtable *rt;
+
+ memset(fl, 0, sizeof(*fl));
+ fl->daddr = key->ipv4_dst;
+ fl->saddr = key->ipv4_src;
+ fl->flowi4_tos = RT_TOS(key->ipv4_tos);
+ fl->flowi4_mark = mark;
+ fl->flowi4_proto = protocol;
+
+ rt = ip_route_output_key(net, fl);
+ return rt;
+}
#endif /* vport.h */