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_h
16 #define included_vnet_vxlan_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/l2/l2_output.h>
24 #include <vnet/l2/l2_bd.h>
25 #include <vnet/ethernet/ethernet.h>
26 #include <vnet/vxlan/vxlan_packet.h>
27 #include <vnet/ip/ip4_packet.h>
28 #include <vnet/ip/ip6_packet.h>
29 #include <vnet/udp/udp.h>
30 #include <vnet/dpo/dpo.h>
31 #include <vnet/adj/adj_types.h>
33 typedef CLIB_PACKED (struct {
34 ip4_header_t ip4; /* 20 bytes */
35 udp_header_t udp; /* 8 bytes */
36 vxlan_header_t vxlan; /* 8 bytes */
37 }) ip4_vxlan_header_t;
39 typedef CLIB_PACKED (struct {
40 ip6_header_t ip6; /* 40 bytes */
41 udp_header_t udp; /* 8 bytes */
42 vxlan_header_t vxlan; /* 8 bytes */
43 }) ip6_vxlan_header_t;
45 typedef CLIB_PACKED(struct {
47 * Key fields: ip src and vxlan vni on incoming VXLAN packet
48 * all fields in NET byte order
53 u32 vni; /* shifted left 8 bits */
57 }) vxlan4_tunnel_key_t;
59 typedef CLIB_PACKED(struct {
61 * Key fields: ip src and vxlan vni on incoming VXLAN packet
62 * all fields in NET byte order
65 u32 vni; /* shifted left 8 bits */
66 }) vxlan6_tunnel_key_t;
69 /* FIB DPO for IP forwarding of VXLAN encap packet */
72 /* vxlan VNI in HOST byte order */
75 /* tunnel src and dst addresses */
79 /* mcast packet output intfc index (used only if dst is mcast) */
80 u32 mcast_sw_if_index;
82 /* decap next index */
85 /* The FIB index for src/dst addresses */
88 /* vnet intfc index */
93 * Linkage into the FIB object graph
98 * The FIB entry for (depending on VXLAN tunnel is unicast or mcast)
99 * sending unicast VXLAN encap packets or receiving mcast VXLAN packets
101 fib_node_index_t fib_entry_index;
102 adj_index_t mcast_adj_index;
105 * The tunnel is a child of the FIB entry for its desintion. This is
106 * so it receives updates when the forwarding information for that entry
108 * The tunnels sibling index on the FIB entry's dependency list.
112 u32 dev_instance; /* Real device instance in tunnel vector */
113 u32 user_instance; /* Instance name being shown to user */
115 vnet_declare_rewrite (VLIB_BUFFER_PRE_DATA_SIZE);
118 #define foreach_vxlan_input_next \
119 _(DROP, "error-drop") \
120 _(L2_INPUT, "l2-input")
123 #define _(s,n) VXLAN_INPUT_NEXT_##s,
124 foreach_vxlan_input_next
127 } vxlan_input_next_t;
130 #define vxlan_error(n,s) VXLAN_ERROR_##n,
131 #include <vnet/vxlan/vxlan_error.def>
134 } vxlan_input_error_t;
137 /* vector of encap tunnel instances */
138 vxlan_tunnel_t * tunnels;
140 /* lookup tunnel by key */
141 uword * vxlan4_tunnel_by_key; /* keyed on ipv4.dst + vni */
142 uword * vxlan6_tunnel_by_key; /* keyed on ipv6.dst + vni */
144 /* local VTEP IPs ref count used by vxlan-bypass node to check if
145 received VXLAN packet DIP matches any local VTEP address */
146 uword * vtep4; /* local ip4 VTEPs keyed on their ip4 addr */
147 uword * vtep6; /* local ip6 VTEPs keyed on their ip6 addr */
149 /* mcast shared info */
150 uword * mcast_shared; /* keyed on mcast ip46 addr */
152 /* Mapping from sw_if_index to tunnel index */
153 u32 * tunnel_index_by_sw_if_index;
156 vlib_main_t * vlib_main;
157 vnet_main_t * vnet_main;
159 /* Record used instances */
160 uword *instance_used;
163 extern vxlan_main_t vxlan_main;
165 extern vlib_node_registration_t vxlan4_input_node;
166 extern vlib_node_registration_t vxlan6_input_node;
167 extern vlib_node_registration_t vxlan4_encap_node;
168 extern vlib_node_registration_t vxlan6_encap_node;
170 u8 * format_vxlan_encap_trace (u8 * s, va_list * args);
175 /* we normally use is_ip4, but since this adds to the
176 * structure, this seems less of abreaking change */
179 ip46_address_t src, dst;
180 u32 mcast_sw_if_index;
182 u32 decap_next_index;
184 } vnet_vxlan_add_del_tunnel_args_t;
186 int vnet_vxlan_add_del_tunnel
187 (vnet_vxlan_add_del_tunnel_args_t *a, u32 * sw_if_indexp);
189 void vnet_int_vxlan_bypass_mode
190 (u32 sw_if_index, u8 is_ip6, u8 is_enable);
191 #endif /* included_vnet_vxlan_h */
195 * eval: (c-set-style "gnu")