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-gre/nsh_gre_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 */
82 /* Context headers, always present, in HOST byte order */
85 } nsh_vxlan_gpe_tunnel_t;
87 #define foreach_nsh_vxlan_gpe_input_next \
88 _(DROP, "error-drop") \
89 _(IP4_INPUT, "ip4-input") \
90 _(IP6_INPUT, "ip6-input") \
91 _(ETHERNET_INPUT, "ethernet-input") \
92 _(NSH_VXLAN_GPE_ENCAP, "nsh-vxlan-gpe-encap")
95 #define _(s,n) NSH_VXLAN_GPE_INPUT_NEXT_##s,
96 foreach_nsh_vxlan_gpe_input_next
98 NSH_VXLAN_GPE_INPUT_N_NEXT,
99 } nsh_vxlan_gpe_input_next_t;
102 #define nsh_vxlan_gpe_error(n,s) NSH_VXLAN_GPE_ERROR_##n,
103 #include <vnet/nsh-vxlan-gpe/nsh_vxlan_gpe_error.def>
104 #undef nsh_vxlan_gpe_error
105 NSH_VXLAN_GPE_N_ERROR,
106 } nsh_vxlan_gpe_input_error_t;
109 /* vector of encap tunnel instances */
110 nsh_vxlan_gpe_tunnel_t *tunnels;
112 /* lookup tunnel by key */
113 uword * nsh_vxlan_gpe_tunnel_by_key;
115 /* Free vlib hw_if_indices */
116 u32 * free_nsh_vxlan_gpe_tunnel_hw_if_indices;
118 /* show device instance by real device instance */
119 u32 * dev_inst_by_real;
122 vlib_main_t * vlib_main;
123 vnet_main_t * vnet_main;
124 } nsh_vxlan_gpe_main_t;
126 nsh_vxlan_gpe_main_t nsh_vxlan_gpe_main;
128 vlib_node_registration_t nsh_vxlan_gpe_input_node;
129 vlib_node_registration_t nsh_vxlan_gpe_encap_node;
131 u8 * format_nsh_vxlan_gpe_encap_trace (u8 * s, va_list * args);
135 ip4_address_t src, dst;
138 u32 decap_next_index;
147 } vnet_nsh_vxlan_gpe_add_del_tunnel_args_t;
149 int vnet_nsh_vxlan_gpe_add_del_tunnel
150 (vnet_nsh_vxlan_gpe_add_del_tunnel_args_t *a, u32 * sw_if_indexp);
152 #endif /* included_vnet_nsh_vxlan_gpe_h */