1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks.
*
* This file is offered under your choice of two licenses: Apache 2.0 or GNU
* GPL 2.0 or later. The permission statements for each of these licenses is
* given below. You may license your modifications to this file under either
* of these licenses or both. If you wish to license your modifications under
* only one of these licenses, delete the permission text for the other
* license.
*
* ----------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ----------------------------------------------------------------------
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* ----------------------------------------------------------------------
*/
#ifndef OPENVSWITCH_TUNNEL_H
#define OPENVSWITCH_TUNNEL_H 1
#include <linux/types.h>
#include <linux/openvswitch.h>
/* OVS_VPORT_ATTR_OPTIONS attributes for tunnels.
*
* OVS_TUNNEL_ATTR_FLAGS and OVS_TUNNEL_ATTR_DST_IPV4 are required. All other
* attributes are optional.
*/
enum {
OVS_TUNNEL_ATTR_UNSPEC,
OVS_TUNNEL_ATTR_FLAGS, /* 32-bit TNL_F_*. */
OVS_TUNNEL_ATTR_DST_IPV4, /* IPv4 destination address. */
OVS_TUNNEL_ATTR_SRC_IPV4, /* IPv4 source address. */
OVS_TUNNEL_ATTR_OUT_KEY, /* __be64 key to use on output. */
OVS_TUNNEL_ATTR_IN_KEY, /* __be64 key to match on input. */
OVS_TUNNEL_ATTR_TOS, /* 8-bit TOS value. */
OVS_TUNNEL_ATTR_TTL, /* 8-bit TTL value. */
__OVS_TUNNEL_ATTR_MAX
};
#define OVS_TUNNEL_ATTR_MAX (__OVS_TUNNEL_ATTR_MAX - 1)
#define TNL_F_CSUM (1 << 0) /* Checksum packets. */
#define TNL_F_TOS_INHERIT (1 << 1) /* Inherit ToS from inner packet. */
#define TNL_F_TTL_INHERIT (1 << 2) /* Inherit TTL from inner packet. */
#define TNL_F_DF_INHERIT (1 << 3) /* Inherit DF bit from inner packet. */
#define TNL_F_DF_DEFAULT (1 << 4) /* Set DF bit if inherit off or
* not IP. */
#define TNL_F_PMTUD (1 << 5) /* Enable path MTU discovery. */
#define TNL_F_HDR_CACHE (1 << 6) /* Enable tunnel header caching. */
#define TNL_F_IPSEC (1 << 7) /* Traffic is IPsec encrypted. */
#endif /* openvswitch/tunnel.h */
|
