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git.proxmox.com Git - mirror_ovs.git/blob - lib/netdev-native-tnl.h
2 * Copyright (c) 2010, 2011, 2013, 2015 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 #ifndef NETDEV_VPORT_NATIVE_TNL_H
18 #define NETDEV_VPORT_NATIVE_TNL_H 1
26 netdev_gre_build_header(const struct netdev
*netdev
,
27 struct ovs_action_push_tnl
*data
,
28 const struct flow
*tnl_flow
);
30 netdev_gre_push_header(struct dp_packet
*packet
,
31 const struct ovs_action_push_tnl
*data
);
33 netdev_gre_pop_header(struct dp_packet
*packet
);
36 netdev_tnl_push_udp_header(struct dp_packet
*packet
,
37 const struct ovs_action_push_tnl
*data
);
39 netdev_geneve_build_header(const struct netdev
*netdev
,
40 struct ovs_action_push_tnl
*data
,
41 const struct flow
*tnl_flow
);
43 netdev_geneve_pop_header(struct dp_packet
*packet
);
46 netdev_vxlan_build_header(const struct netdev
*netdev
,
47 struct ovs_action_push_tnl
*data
,
48 const struct flow
*tnl_flow
);
50 netdev_vxlan_pop_header(struct dp_packet
*packet
);
53 netdev_tnl_is_header_ipv6(const void *header
)
55 const struct eth_header
*eth
;
57 return eth
->eth_type
== htons(ETH_TYPE_IPV6
);
60 static inline struct ip_header
*
61 netdev_tnl_ip_hdr(void *eth
)
63 return (void *)((char *)eth
+ sizeof (struct eth_header
));
66 static inline struct ovs_16aligned_ip6_hdr
*
67 netdev_tnl_ipv6_hdr(void *eth
)
69 return (void *)((char *)eth
+ sizeof (struct eth_header
));
72 extern uint16_t tnl_udp_port_min
;
73 extern uint16_t tnl_udp_port_max
;
75 static inline ovs_be16
76 netdev_tnl_get_src_port(struct dp_packet
*packet
)
80 hash
= dp_packet_get_rss_hash(packet
);
82 return htons((((uint64_t) hash
* (tnl_udp_port_max
- tnl_udp_port_min
)) >> 32) +
87 netdev_tnl_ip_extract_tnl_md(struct dp_packet
*packet
, struct flow_tnl
*tnl
,
90 netdev_tnl_push_ip_header(struct dp_packet
*packet
,
91 const void *header
, int size
, int *ip_tot_size
);
93 netdev_tnl_egress_port_range(struct unixctl_conn
*conn
, int argc
,
94 const char *argv
[], void *aux OVS_UNUSED
);