1 /* Copyright (c) 2013, 2015 Nicira, Inc.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
23 /* Tunnel port emulation layer.
25 * These functions emulate tunnel virtual ports based on the outer
26 * header information from the kernel. */
28 struct ovs_action_push_tnl;
32 void ofproto_tunnel_init(void);
33 bool tnl_port_reconfigure(const struct ofport_dpif *, const struct netdev *,
34 odp_port_t, bool native_tnl, const char name[]);
36 int tnl_port_add(const struct ofport_dpif *, const struct netdev *,
37 odp_port_t odp_port, bool native_tnl, const char name[]);
38 void tnl_port_del(const struct ofport_dpif *);
40 const struct ofport_dpif *tnl_port_receive(const struct flow *);
41 void tnl_wc_init(struct flow *, struct flow_wildcards *);
42 bool tnl_process_ecn(struct flow *);
43 odp_port_t tnl_port_send(const struct ofport_dpif *, struct flow *,
44 struct flow_wildcards *wc);
46 /* Returns true if 'flow' should be submitted to tnl_port_receive(). */
48 tnl_port_should_receive(const struct flow *flow)
50 return flow->tunnel.ip_dst != 0;
53 int tnl_port_build_header(const struct ofport_dpif *ofport,
54 const struct flow *tnl_flow,
55 const struct eth_addr dmac,
56 const struct eth_addr smac,
57 ovs_be32 ip_src, struct ovs_action_push_tnl *data);