FD.io VPP  v19.04.4-rc0-5-ge88582fac
Vector Packet Processing
ipsec_gre.h
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2016 Cisco and/or its affiliates.
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:
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
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.
14  */
15 /**
16  * @file
17  * @brief L2-GRE over IPSec packet processing.
18 */
19 
20 #ifndef included_ipsec_gre_h
21 #define included_ipsec_gre_h
22 
23 #include <vnet/vnet.h>
24 #include <vnet/gre/packet.h>
25 #include <vnet/gre/gre.h>
26 #include <vnet/ip/ip.h>
27 #include <vnet/ip/ip4.h>
28 #include <vnet/ip/ip4_packet.h>
29 #include <vnet/pg/pg.h>
30 #include <vnet/ip/format.h>
31 #include <vnet/ipsec/ipsec.h>
32 #include <vnet/ipsec/ipsec_if.h>
33 
35 
36 /**
37  * @brief IPSec-GRE errors.
38  *
39 */
40 typedef enum
41 {
42 #define ipsec_gre_error(n,s) IPSEC_GRE_ERROR_##n,
43 #include <vnet/ipsec-gre/error.def>
44 #undef ipsec_gre_error
47 
48 /**
49  * @brief IPSec-GRE tunnel parameters.
50  *
51 */
52 typedef struct
53 {
54  /* Required for pool_get_aligned */
55  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
56  ip4_address_t tunnel_src; /**< tunnel IPv4 src address */
57  ip4_address_t tunnel_dst; /**< tunnel IPv4 dst address */
58  u32 local_sa; /**< local IPSec SA index */
59  u32 remote_sa; /**< remote IPSec SA index */
60  u32 local_sa_id; /**< local IPSec SA id */
61  u32 remote_sa_id; /**< remote IPSec SA id */
62  u32 hw_if_index;; /**< hardware interface index */
63  u32 sw_if_index;; /**< software interface index */
65 
66 /**
67  * @brief IPSec-GRE state.
68  *
69 */
70 typedef struct
71 {
72  ipsec_gre_tunnel_t *tunnels; /**< pool of tunnel instances */
73 
74  uword *tunnel_by_key; /**< hash mapping src/dst addr pair to tunnel */
75 
76  u32 *free_ipsec_gre_tunnel_hw_if_indices; /**< free vlib hw_if_indices */
77 
78  u32 *tunnel_index_by_sw_if_index; /**< mapping from sw_if_index to tunnel
79  index */
80 
81  vlib_main_t *vlib_main; /**< convenience */
82  vnet_main_t *vnet_main; /**< convenience */
84 
86 
89 
90 /* manually added to the interface output node in ipsec_gre.c */
91 #define IPSEC_GRE_OUTPUT_NEXT_ESP_ENCRYPT 0
92 
93 extern int vnet_ipsec_gre_tunnel_add_del (const
95  u32 * sw_if_indexp);
96 
97 #endif /* included_ipsec_gre_h */
98 
99 /*
100 * fd.io coding-style-patch-verification: ON
101 *
102 * Local Variables:
103 * eval: (c-set-style "gnu")
104 * End:
105 */
ip4_address_t tunnel_dst
tunnel IPv4 dst address
Definition: ipsec_gre.h:57
#define CLIB_CACHE_LINE_ALIGN_MARK(mark)
Definition: cache.h:60
a
Definition: bitmap.h:538
u32 remote_sa
remote IPSec SA index
Definition: ipsec_gre.h:59
ipsec_gre_error_t
IPSec-GRE errors.
Definition: ipsec_gre.h:40
struct _vnet_device_class vnet_device_class_t
int vnet_ipsec_gre_tunnel_add_del(const ipsec_gre_tunnel_add_del_args_t *a, u32 *sw_if_indexp)
Add or delete ipsec-gre tunnel interface.
Definition: interface.c:94
ipsec_gre_tunnel_t * tunnels
pool of tunnel instances
Definition: ipsec_gre.h:72
vnet_hw_interface_class_t ipsec_gre_hw_interface_class
unsigned int u32
Definition: types.h:88
u32 sw_if_index
hardware interface index
Definition: ipsec_gre.h:62
u32 remote_sa_id
remote IPSec SA id
Definition: ipsec_gre.h:61
uword * tunnel_by_key
hash mapping src/dst addr pair to tunnel
Definition: ipsec_gre.h:74
ipsec_gre_main_t ipsec_gre_main
u32 local_sa
local IPSec SA index
Definition: ipsec_gre.h:58
vlib_node_registration_t ipsec_gre_input_node
(constructor) VLIB_REGISTER_NODE (ipsec_gre_input_node)
Definition: node.c:396
u32 * tunnel_index_by_sw_if_index
mapping from sw_if_index to tunnel index
Definition: ipsec_gre.h:78
L2-GRE over IPSec errors.
IPSec-GRE state.
Definition: ipsec_gre.h:70
vnet_device_class_t ipsec_gre_device_class
IPSec-GRE tunnel parameters.
Definition: ipsec_gre.h:52
vnet_main_t * vnet_main
convenience
Definition: ipsec_gre.h:82
struct _vlib_node_registration vlib_node_registration_t
u32 local_sa_id
local IPSec SA id
Definition: ipsec_gre.h:60
struct _vnet_hw_interface_class vnet_hw_interface_class_t
u64 uword
Definition: types.h:112
u32 * free_ipsec_gre_tunnel_hw_if_indices
free vlib hw_if_indices
Definition: ipsec_gre.h:76
vlib_main_t * vlib_main
convenience
Definition: ipsec_gre.h:81
ip4_address_t tunnel_src
tunnel IPv4 src address
Definition: ipsec_gre.h:56