2 * Copyright (c) 2015 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:
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.
15 #ifndef included_vnet_vxlan_gpe_h
16 #define included_vnet_vxlan_gpe_h
18 #include <vppinfra/error.h>
19 #include <vppinfra/hash.h>
20 #include <vnet/vnet.h>
21 #include <vnet/ip/ip.h>
22 #include <vnet/l2/l2_input.h>
23 #include <vnet/ethernet/ethernet.h>
24 #include <vnet/vxlan-gpe/vxlan_gpe_packet.h>
25 #include <vnet/ip/ip4_packet.h>
26 #include <vnet/ip/ip6_packet.h>
27 #include <vnet/ip/udp.h>
30 typedef CLIB_PACKED (struct {
31 ip4_header_t ip4; /* 20 bytes */
32 udp_header_t udp; /* 8 bytes */
33 vxlan_gpe_header_t vxlan; /* 8 bytes */
34 }) ip4_vxlan_gpe_header_t;
36 typedef CLIB_PACKED (struct {
37 ip6_header_t ip6; /* 40 bytes */
38 udp_header_t udp; /* 8 bytes */
39 vxlan_gpe_header_t vxlan; /* 8 bytes */
40 }) ip6_vxlan_gpe_header_t;
42 typedef CLIB_PACKED(struct {
44 * Key fields: local remote, vni
45 * all fields in NET byte order
51 u32 vni; /* shifted 8 bits */
56 }) vxlan4_gpe_tunnel_key_t;
58 typedef CLIB_PACKED(struct {
60 * Key fields: local remote, vni
61 * all fields in NET byte order
65 u32 vni; /* shifted 8 bits */
66 }) vxlan6_gpe_tunnel_key_t;
69 /* Rewrite string. $$$$ embed vnet_rewrite header */
72 /* encapsulated protocol */
75 /* tunnel src and dst addresses */
77 ip46_address_t remote;
80 u32 encap_fib_index; /* tunnel partner lookup here */
81 u32 decap_fib_index; /* inner IP lookup here */
83 /* vxlan VNI in HOST byte order, shifted left 8 bits */
89 /* vnet intfc hw/sw_if_index */
93 union { /* storage for the hash key */
94 vxlan4_gpe_tunnel_key_t key4;
95 vxlan6_gpe_tunnel_key_t key6;
100 } vxlan_gpe_tunnel_t;
102 /* Flags for vxlan_gpe_tunnel_t.flags */
103 #define VXLAN_GPE_TUNNEL_IS_IPV4 1
105 #define foreach_vxlan_gpe_input_next \
106 _(DROP, "error-drop") \
107 _(IP4_INPUT, "ip4-input") \
108 _(IP6_INPUT, "ip6-input") \
109 _(ETHERNET_INPUT, "ethernet-input")
112 #define _(s,n) VXLAN_GPE_INPUT_NEXT_##s,
113 foreach_vxlan_gpe_input_next
115 VXLAN_GPE_INPUT_N_NEXT,
116 } vxlan_gpe_input_next_t;
119 #define vxlan_gpe_error(n,s) VXLAN_GPE_ERROR_##n,
120 #include <vnet/vxlan-gpe/vxlan_gpe_error.def>
121 #undef vxlan_gpe_error
123 } vxlan_gpe_input_error_t;
126 /* vector of encap tunnel instances */
127 vxlan_gpe_tunnel_t *tunnels;
129 /* lookup tunnel by key */
130 uword * vxlan4_gpe_tunnel_by_key;
131 uword * vxlan6_gpe_tunnel_by_key;
133 /* Free vlib hw_if_indices */
134 u32 * free_vxlan_gpe_tunnel_hw_if_indices;
136 /* show device instance by real device instance */
137 u32 * dev_inst_by_real;
140 vlib_main_t * vlib_main;
141 vnet_main_t * vnet_main;
144 vxlan_gpe_main_t vxlan_gpe_main;
146 extern vlib_node_registration_t vxlan_gpe_encap_node;
147 extern vlib_node_registration_t vxlan4_gpe_input_node;
148 extern vlib_node_registration_t vxlan6_gpe_input_node;
150 u8 * format_vxlan_gpe_encap_trace (u8 * s, va_list * args);
155 ip46_address_t local, remote;
159 u32 decap_next_index;
161 } vnet_vxlan_gpe_add_del_tunnel_args_t;
164 int vnet_vxlan_gpe_add_del_tunnel
165 (vnet_vxlan_gpe_add_del_tunnel_args_t *a, u32 * sw_if_indexp);
171 #endif /* included_vnet_vxlan_gpe_h */