Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 1 | /* |
| 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: |
| 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 | #ifndef included_vnet_vxlan_h |
| 16 | #define included_vnet_vxlan_h |
| 17 | |
| 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> |
John Lo | 3ef822e | 2016-06-07 09:14:07 -0400 | [diff] [blame] | 23 | #include <vnet/l2/l2_output.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 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> |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 28 | #include <vnet/ip/ip6_packet.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 29 | #include <vnet/ip/udp.h> |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 30 | #include <vnet/dpo/dpo.h> |
Eyal Bari | c5b1360 | 2016-11-24 19:42:43 +0200 | [diff] [blame] | 31 | #include <vnet/adj/adj_types.h> |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 32 | |
| 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; |
| 38 | |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 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; |
| 44 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 45 | typedef CLIB_PACKED(struct { |
| 46 | /* |
| 47 | * Key fields: ip src and vxlan vni on incoming VXLAN packet |
| 48 | * all fields in NET byte order |
| 49 | */ |
| 50 | union { |
| 51 | struct { |
| 52 | u32 src; |
| 53 | u32 vni; /* shifted left 8 bits */ |
| 54 | }; |
| 55 | u64 as_u64; |
| 56 | }; |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 57 | }) vxlan4_tunnel_key_t; |
| 58 | |
| 59 | typedef CLIB_PACKED(struct { |
| 60 | /* |
| 61 | * Key fields: ip src and vxlan vni on incoming VXLAN packet |
| 62 | * all fields in NET byte order |
| 63 | */ |
| 64 | ip6_address_t src; |
| 65 | u32 vni; /* shifted left 8 bits */ |
| 66 | }) vxlan6_tunnel_key_t; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 67 | |
| 68 | typedef struct { |
| 69 | /* Rewrite string. $$$$ embed vnet_rewrite header */ |
| 70 | u8 * rewrite; |
| 71 | |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 72 | /* FIB DPO for IP forwarding of VXLAN encap packet */ |
| 73 | dpo_id_t next_dpo; |
| 74 | |
| 75 | /* storage for the hash key */ |
| 76 | union { |
| 77 | vxlan4_tunnel_key_t *key4; /* unused for now */ |
| 78 | vxlan6_tunnel_key_t *key6; |
| 79 | }; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 80 | |
| 81 | /* vxlan VNI in HOST byte order */ |
| 82 | u32 vni; |
| 83 | |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 84 | /* tunnel src and dst addresses */ |
| 85 | ip46_address_t src; |
| 86 | ip46_address_t dst; |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 87 | |
John Lo | 56912c8 | 2016-12-08 16:10:02 -0500 | [diff] [blame] | 88 | /* mcast packet output intfc index (used only if dst is mcast) */ |
Eyal Bari | c5b1360 | 2016-11-24 19:42:43 +0200 | [diff] [blame] | 89 | u32 mcast_sw_if_index; |
John Lo | 56912c8 | 2016-12-08 16:10:02 -0500 | [diff] [blame] | 90 | |
Hongjun Ni | beb4bf7 | 2016-11-25 00:03:46 +0800 | [diff] [blame] | 91 | /* decap next index */ |
| 92 | u32 decap_next_index; |
Eyal Bari | c5b1360 | 2016-11-24 19:42:43 +0200 | [diff] [blame] | 93 | |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 94 | /* The FIB index for src/dst addresses */ |
| 95 | u32 encap_fib_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 96 | |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 97 | /* vnet intfc index */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 98 | u32 sw_if_index; |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 99 | u32 hw_if_index; |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 100 | |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 101 | /** |
| 102 | * Linkage into the FIB object graph |
| 103 | */ |
| 104 | fib_node_t node; |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 105 | |
Eyal Bari | c5b1360 | 2016-11-24 19:42:43 +0200 | [diff] [blame] | 106 | /* |
| 107 | * The FIB entry for (depending on VXLAN tunnel is unicast or mcast) |
| 108 | * sending unicast VXLAN encap packets or receiving mcast VXLAN packets |
| 109 | */ |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 110 | fib_node_index_t fib_entry_index; |
Eyal Bari | c5b1360 | 2016-11-24 19:42:43 +0200 | [diff] [blame] | 111 | adj_index_t mcast_adj_index; |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 112 | |
| 113 | /** |
| 114 | * The tunnel is a child of the FIB entry for its desintion. This is |
| 115 | * so it receives updates when the forwarding information for that entry |
| 116 | * changes. |
| 117 | * The tunnels sibling index on the FIB entry's dependency list. |
| 118 | */ |
| 119 | u32 sibling_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 120 | } vxlan_tunnel_t; |
| 121 | |
| 122 | #define foreach_vxlan_input_next \ |
| 123 | _(DROP, "error-drop") \ |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 124 | _(L2_INPUT, "l2-input") |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 125 | |
| 126 | typedef enum { |
| 127 | #define _(s,n) VXLAN_INPUT_NEXT_##s, |
| 128 | foreach_vxlan_input_next |
| 129 | #undef _ |
| 130 | VXLAN_INPUT_N_NEXT, |
| 131 | } vxlan_input_next_t; |
| 132 | |
| 133 | typedef enum { |
| 134 | #define vxlan_error(n,s) VXLAN_ERROR_##n, |
| 135 | #include <vnet/vxlan/vxlan_error.def> |
| 136 | #undef vxlan_error |
| 137 | VXLAN_N_ERROR, |
| 138 | } vxlan_input_error_t; |
| 139 | |
| 140 | typedef struct { |
Eyal Bari | 5ac9bf5 | 2017-01-02 14:29:21 +0200 | [diff] [blame^] | 141 | ip46_address_t * ip; |
Eyal Bari | fff67c8 | 2016-12-21 12:45:47 +0200 | [diff] [blame] | 142 | fib_node_index_t fib_entry_index; |
| 143 | adj_index_t mcast_adj_index; |
| 144 | } mcast_remote_t; |
| 145 | |
| 146 | typedef struct { |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 147 | /* vector of encap tunnel instances */ |
Eyal Bari | fff67c8 | 2016-12-21 12:45:47 +0200 | [diff] [blame] | 148 | vxlan_tunnel_t * tunnels; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 149 | |
| 150 | /* lookup tunnel by key */ |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 151 | uword * vxlan4_tunnel_by_key; /* keyed on ipv4.dst + vni */ |
| 152 | uword * vxlan6_tunnel_by_key; /* keyed on ipv6.dst + vni */ |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 153 | |
Eyal Bari | fff67c8 | 2016-12-21 12:45:47 +0200 | [diff] [blame] | 154 | /* local VTEP IPs ref count used by vxlan-bypass node to check if |
| 155 | received VXLAN packet DIP matches any local VTEP address */ |
John Lo | 37682e1 | 2016-11-30 12:51:39 -0500 | [diff] [blame] | 156 | uword * vtep4; /* local ip4 VTEPs keyed on their ip4 addr */ |
| 157 | uword * vtep6; /* local ip6 VTEPs keyed on their ip6 addr */ |
| 158 | |
Eyal Bari | fff67c8 | 2016-12-21 12:45:47 +0200 | [diff] [blame] | 159 | /* set of active remote mcast VTEP */ |
| 160 | mcast_remote_t * mcast_eps; |
| 161 | uword * mcast_ep_by_ip; /* mcast VTEPs keyed on their ip46 addr */ |
| 162 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 163 | /* Free vlib hw_if_indices */ |
| 164 | u32 * free_vxlan_tunnel_hw_if_indices; |
| 165 | |
Dave Wallace | 60231f3 | 2015-12-17 21:04:30 -0500 | [diff] [blame] | 166 | /* Mapping from sw_if_index to tunnel index */ |
| 167 | u32 * tunnel_index_by_sw_if_index; |
| 168 | |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 169 | /* convenience */ |
| 170 | vlib_main_t * vlib_main; |
| 171 | vnet_main_t * vnet_main; |
| 172 | } vxlan_main_t; |
| 173 | |
| 174 | vxlan_main_t vxlan_main; |
| 175 | |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 176 | extern vlib_node_registration_t vxlan4_input_node; |
| 177 | extern vlib_node_registration_t vxlan6_input_node; |
John Lo | c42912d | 2016-11-07 18:30:47 -0500 | [diff] [blame] | 178 | extern vlib_node_registration_t vxlan4_encap_node; |
| 179 | extern vlib_node_registration_t vxlan6_encap_node; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 180 | |
| 181 | u8 * format_vxlan_encap_trace (u8 * s, va_list * args); |
| 182 | |
| 183 | typedef struct { |
| 184 | u8 is_add; |
Chris Luke | 99cb335 | 2016-04-26 10:49:53 -0400 | [diff] [blame] | 185 | |
| 186 | /* we normally use is_ip4, but since this adds to the |
| 187 | * structure, this seems less of abreaking change */ |
| 188 | u8 is_ip6; |
| 189 | ip46_address_t src, dst; |
Eyal Bari | c5b1360 | 2016-11-24 19:42:43 +0200 | [diff] [blame] | 190 | u32 mcast_sw_if_index; |
Ed Warnicke | cb9cada | 2015-12-08 15:45:58 -0700 | [diff] [blame] | 191 | u32 encap_fib_index; |
| 192 | u32 decap_next_index; |
| 193 | u32 vni; |
| 194 | } vnet_vxlan_add_del_tunnel_args_t; |
| 195 | |
| 196 | int vnet_vxlan_add_del_tunnel |
| 197 | (vnet_vxlan_add_del_tunnel_args_t *a, u32 * sw_if_indexp); |
| 198 | |
| 199 | #endif /* included_vnet_vxlan_h */ |