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_nsh_vxlan_gpe_h
16 #define included_vnet_nsh_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/gre/gre.h>
25 #include <vnet/nsh/nsh_packet.h>
26 #include <vnet/nsh-vxlan-gpe/vxlan_gpe_packet.h>
27 #include <vnet/ip/ip4_packet.h>
28 #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 nsh_header_t nsh; /* 28 bytes */
35 }) ip4_vxlan_gpe_and_nsh_header_t;
37 typedef CLIB_PACKED(struct {
39 * Key fields: ip src, vxlan vni, nsh spi_si
40 * all fields in NET byte order
45 u32 vni; /* shifted 8 bits */
51 }) nsh_vxlan_gpe_tunnel_key_t;
54 /* Rewrite string. $$$$ embed vnet_rewrite header */
57 /* decap next index */
60 /* tunnel src and dst addresses */
65 u32 encap_fib_index; /* tunnel partner lookup here */
66 u32 decap_fib_index; /* inner IP lookup here */
68 /* vxlan VNI in HOST byte order, shifted left 8 bits */
71 /* vnet intfc hw/sw_if_index */
75 /* NSH header fields in HOST byte order */
77 } nsh_vxlan_gpe_tunnel_t;
79 #define foreach_nsh_vxlan_gpe_input_next \
80 _(DROP, "error-drop") \
81 _(IP4_INPUT, "ip4-input") \
82 _(IP6_INPUT, "ip6-input") \
83 _(ETHERNET_INPUT, "ethernet-input") \
84 _(NSH_VXLAN_GPE_ENCAP, "nsh-vxlan-gpe-encap")
87 #define _(s,n) NSH_VXLAN_GPE_INPUT_NEXT_##s,
88 foreach_nsh_vxlan_gpe_input_next
90 NSH_VXLAN_GPE_INPUT_N_NEXT,
91 } nsh_vxlan_gpe_input_next_t;
94 #define nsh_vxlan_gpe_error(n,s) NSH_VXLAN_GPE_ERROR_##n,
95 #include <vnet/nsh-vxlan-gpe/nsh_vxlan_gpe_error.def>
96 #undef nsh_vxlan_gpe_error
97 NSH_VXLAN_GPE_N_ERROR,
98 } nsh_vxlan_gpe_input_error_t;
101 /* vector of encap tunnel instances */
102 nsh_vxlan_gpe_tunnel_t *tunnels;
104 /* lookup tunnel by key */
105 uword * nsh_vxlan_gpe_tunnel_by_key;
107 /* Free vlib hw_if_indices */
108 u32 * free_nsh_vxlan_gpe_tunnel_hw_if_indices;
110 /* show device instance by real device instance */
111 u32 * dev_inst_by_real;
114 vlib_main_t * vlib_main;
115 vnet_main_t * vnet_main;
116 } nsh_vxlan_gpe_main_t;
118 nsh_vxlan_gpe_main_t nsh_vxlan_gpe_main;
120 extern vlib_node_registration_t nsh_vxlan_gpe_input_node;
121 extern vlib_node_registration_t nsh_vxlan_gpe_encap_node;
123 u8 * format_nsh_vxlan_gpe_encap_trace (u8 * s, va_list * args);
127 ip4_address_t src, dst;
130 u32 decap_next_index;
132 nsh_header_t nsh_hdr;
133 } vnet_nsh_vxlan_gpe_add_del_tunnel_args_t;
135 int vnet_nsh_vxlan_gpe_add_del_tunnel
136 (vnet_nsh_vxlan_gpe_add_del_tunnel_args_t *a, u32 * sw_if_indexp);
138 #endif /* included_vnet_nsh_vxlan_gpe_h */