Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016 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 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 16 | #include <vlibmemory/api.h> |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 17 | #include <vnet/lisp-cp/control.h> |
| 18 | #include <vnet/lisp-cp/packets.h> |
| 19 | #include <vnet/lisp-cp/lisp_msg_serdes.h> |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 20 | #include <vnet/lisp-gpe/lisp_gpe_fwd_entry.h> |
| 21 | #include <vnet/lisp-gpe/lisp_gpe_tenant.h> |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 22 | #include <vnet/lisp-gpe/lisp_gpe_tunnel.h> |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 23 | #include <vnet/fib/fib_entry.h> |
| 24 | #include <vnet/fib/fib_table.h> |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 25 | #include <vnet/ethernet/arp_packet.h> |
| 26 | #include <vnet/ethernet/packet.h> |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 27 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 28 | #include <openssl/evp.h> |
| 29 | #include <openssl/hmac.h> |
| 30 | |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 31 | #define MAX_VALUE_U24 0xffffff |
| 32 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 33 | /* mapping timer control constants (in seconds) */ |
| 34 | #define TIME_UNTIL_REFETCH_OR_DELETE 20 |
| 35 | #define MAPPING_TIMEOUT (((m->ttl) * 60) - TIME_UNTIL_REFETCH_OR_DELETE) |
| 36 | |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 37 | lisp_cp_main_t lisp_control_main; |
| 38 | |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 39 | u8 *format_lisp_cp_input_trace (u8 * s, va_list * args); |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 40 | static void *send_map_request_thread_fn (void *arg); |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 41 | |
| 42 | typedef enum |
| 43 | { |
| 44 | LISP_CP_INPUT_NEXT_DROP, |
| 45 | LISP_CP_INPUT_N_NEXT, |
| 46 | } lisp_cp_input_next_t; |
| 47 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 48 | typedef struct |
| 49 | { |
| 50 | u8 is_resend; |
| 51 | gid_address_t seid; |
| 52 | gid_address_t deid; |
| 53 | u8 smr_invoked; |
| 54 | } map_request_args_t; |
| 55 | |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 56 | u8 |
| 57 | vnet_lisp_get_map_request_mode (void) |
| 58 | { |
| 59 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 60 | return lcm->map_request_mode; |
| 61 | } |
| 62 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 63 | static u16 |
| 64 | auth_data_len_by_key_id (lisp_key_type_t key_id) |
| 65 | { |
| 66 | switch (key_id) |
| 67 | { |
| 68 | case HMAC_SHA_1_96: |
| 69 | return SHA1_AUTH_DATA_LEN; |
| 70 | case HMAC_SHA_256_128: |
| 71 | return SHA256_AUTH_DATA_LEN; |
| 72 | default: |
| 73 | clib_warning ("unsupported key type: %d!", key_id); |
| 74 | return (u16) ~ 0; |
| 75 | } |
| 76 | return (u16) ~ 0; |
| 77 | } |
| 78 | |
| 79 | static const EVP_MD * |
| 80 | get_encrypt_fcn (lisp_key_type_t key_id) |
| 81 | { |
| 82 | switch (key_id) |
| 83 | { |
| 84 | case HMAC_SHA_1_96: |
| 85 | return EVP_sha1 (); |
| 86 | case HMAC_SHA_256_128: |
| 87 | return EVP_sha256 (); |
| 88 | default: |
| 89 | clib_warning ("unsupported encryption key type: %d!", key_id); |
| 90 | break; |
| 91 | } |
| 92 | return 0; |
| 93 | } |
| 94 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 95 | static int |
| 96 | queue_map_request (gid_address_t * seid, gid_address_t * deid, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 97 | u8 smr_invoked, u8 is_resend); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 98 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 99 | ip_interface_address_t * |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 100 | ip_interface_get_first_interface_address (ip_lookup_main_t * lm, |
| 101 | u32 sw_if_index, u8 loop) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 102 | { |
| 103 | vnet_main_t *vnm = vnet_get_main (); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 104 | vnet_sw_interface_t *swif = vnet_get_sw_interface (vnm, sw_if_index); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 105 | if (loop && swif->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED) |
| 106 | sw_if_index = swif->unnumbered_sw_if_index; |
| 107 | u32 ia = |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 108 | (vec_len ((lm)->if_address_pool_index_by_sw_if_index) > (sw_if_index)) ? |
| 109 | vec_elt ((lm)->if_address_pool_index_by_sw_if_index, (sw_if_index)) : |
| 110 | (u32) ~ 0; |
| 111 | return pool_elt_at_index ((lm)->if_address_pool, ia); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 112 | } |
Filip Tehlar | 215104e | 2016-05-10 16:58:29 +0200 | [diff] [blame] | 113 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 114 | void * |
| 115 | ip_interface_get_first_address (ip_lookup_main_t * lm, u32 sw_if_index, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 116 | u8 version) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 117 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 118 | ip_interface_address_t *ia; |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 119 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 120 | ia = ip_interface_get_first_interface_address (lm, sw_if_index, 1); |
| 121 | if (!ia) |
| 122 | return 0; |
| 123 | return ip_interface_address_get_address (lm, ia); |
| 124 | } |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 125 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 126 | int |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 127 | ip_interface_get_first_ip_address (lisp_cp_main_t * lcm, u32 sw_if_index, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 128 | u8 version, ip_address_t * result) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 129 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 130 | ip_lookup_main_t *lm; |
| 131 | void *addr; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 132 | |
| 133 | lm = (version == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main; |
| 134 | addr = ip_interface_get_first_address (lm, sw_if_index, version); |
| 135 | if (!addr) |
| 136 | return 0; |
| 137 | |
| 138 | ip_address_set (result, addr, version); |
| 139 | return 1; |
| 140 | } |
| 141 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 142 | /** |
| 143 | * convert from a LISP address to a FIB prefix |
| 144 | */ |
| 145 | void |
| 146 | ip_address_to_fib_prefix (const ip_address_t * addr, fib_prefix_t * prefix) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 147 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 148 | if (addr->version == IP4) |
| 149 | { |
| 150 | prefix->fp_len = 32; |
| 151 | prefix->fp_proto = FIB_PROTOCOL_IP4; |
| 152 | memset (&prefix->fp_addr.pad, 0, sizeof (prefix->fp_addr.pad)); |
| 153 | memcpy (&prefix->fp_addr.ip4, &addr->ip, sizeof (prefix->fp_addr.ip4)); |
| 154 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 155 | else |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 156 | { |
| 157 | prefix->fp_len = 128; |
| 158 | prefix->fp_proto = FIB_PROTOCOL_IP6; |
| 159 | memcpy (&prefix->fp_addr.ip6, &addr->ip, sizeof (prefix->fp_addr.ip6)); |
| 160 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 161 | } |
| 162 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 163 | /** |
| 164 | * convert from a LISP to a FIB prefix |
| 165 | */ |
| 166 | void |
| 167 | ip_prefix_to_fib_prefix (const ip_prefix_t * ip_prefix, |
| 168 | fib_prefix_t * fib_prefix) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 169 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 170 | ip_address_to_fib_prefix (&ip_prefix->addr, fib_prefix); |
| 171 | fib_prefix->fp_len = ip_prefix->len; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Find the sw_if_index of the interface that would be used to egress towards |
| 176 | * dst. |
| 177 | */ |
| 178 | u32 |
| 179 | ip_fib_get_egress_iface_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst) |
| 180 | { |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 181 | fib_node_index_t fei; |
| 182 | fib_prefix_t prefix; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 183 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 184 | ip_address_to_fib_prefix (dst, &prefix); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 185 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 186 | fei = fib_table_lookup (0, &prefix); |
| 187 | |
| 188 | return (fib_entry_get_resolving_interface (fei)); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | /** |
| 192 | * Find first IP of the interface that would be used to egress towards dst. |
| 193 | * Returns 1 if the address is found 0 otherwise. |
| 194 | */ |
| 195 | int |
| 196 | ip_fib_get_first_egress_ip_for_dst (lisp_cp_main_t * lcm, ip_address_t * dst, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 197 | ip_address_t * result) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 198 | { |
| 199 | u32 si; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 200 | ip_lookup_main_t *lm; |
| 201 | void *addr = 0; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 202 | u8 ipver; |
| 203 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 204 | ASSERT (result != 0); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 205 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 206 | ipver = ip_addr_version (dst); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 207 | |
| 208 | lm = (ipver == IP4) ? &lcm->im4->lookup_main : &lcm->im6->lookup_main; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 209 | si = ip_fib_get_egress_iface_for_dst (lcm, dst); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 210 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 211 | if ((u32) ~ 0 == si) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 212 | return 0; |
| 213 | |
| 214 | /* find the first ip address */ |
| 215 | addr = ip_interface_get_first_address (lm, si, ipver); |
| 216 | if (0 == addr) |
| 217 | return 0; |
| 218 | |
| 219 | ip_address_set (result, addr, ipver); |
| 220 | return 1; |
| 221 | } |
| 222 | |
| 223 | static int |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 224 | dp_add_del_iface (lisp_cp_main_t * lcm, u32 vni, u8 is_l2, u8 is_add, |
| 225 | u8 with_default_route) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 226 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 227 | uword *dp_table; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 228 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 229 | if (!is_l2) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 230 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 231 | dp_table = hash_get (lcm->table_id_by_vni, vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 232 | |
| 233 | if (!dp_table) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 234 | { |
| 235 | clib_warning ("vni %d not associated to a vrf!", vni); |
| 236 | return VNET_API_ERROR_INVALID_VALUE; |
| 237 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 238 | } |
| 239 | else |
| 240 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 241 | dp_table = hash_get (lcm->bd_id_by_vni, vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 242 | if (!dp_table) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 243 | { |
| 244 | clib_warning ("vni %d not associated to a bridge domain!", vni); |
| 245 | return VNET_API_ERROR_INVALID_VALUE; |
| 246 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 247 | } |
| 248 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 249 | /* enable/disable data-plane interface */ |
| 250 | if (is_add) |
| 251 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 252 | if (is_l2) |
| 253 | lisp_gpe_tenant_l2_iface_add_or_lock (vni, dp_table[0]); |
| 254 | else |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 255 | lisp_gpe_tenant_l3_iface_add_or_lock (vni, dp_table[0], |
| 256 | with_default_route); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 257 | } |
| 258 | else |
| 259 | { |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 260 | if (is_l2) |
| 261 | lisp_gpe_tenant_l2_iface_unlock (vni); |
| 262 | else |
| 263 | lisp_gpe_tenant_l3_iface_unlock (vni); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 264 | } |
| 265 | |
| 266 | return 0; |
| 267 | } |
| 268 | |
| 269 | static void |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 270 | dp_del_fwd_entry (lisp_cp_main_t * lcm, u32 dst_map_index) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 271 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 272 | vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a; |
| 273 | fwd_entry_t *fe = 0; |
| 274 | uword *feip = 0; |
| 275 | memset (a, 0, sizeof (*a)); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 276 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 277 | feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 278 | if (!feip) |
| 279 | return; |
| 280 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 281 | fe = pool_elt_at_index (lcm->fwd_entry_pool, feip[0]); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 282 | |
| 283 | /* delete dp fwd entry */ |
| 284 | u32 sw_if_index; |
| 285 | a->is_add = 0; |
Florin Coras | bb5c22f | 2016-08-02 02:31:03 +0200 | [diff] [blame] | 286 | a->locator_pairs = fe->locator_pairs; |
Filip Tehlar | 2fdaece | 2016-09-28 14:27:59 +0200 | [diff] [blame] | 287 | a->vni = gid_address_vni (&fe->reid); |
| 288 | gid_address_copy (&a->rmt_eid, &fe->reid); |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 289 | if (fe->is_src_dst) |
| 290 | gid_address_copy (&a->lcl_eid, &fe->leid); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 291 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 292 | vnet_lisp_gpe_del_fwd_counters (a, feip[0]); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 293 | vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index); |
| 294 | |
| 295 | /* delete entry in fwd table */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 296 | hash_unset (lcm->fwd_entry_by_mapping_index, dst_map_index); |
| 297 | vec_free (fe->locator_pairs); |
| 298 | pool_put (lcm->fwd_entry_pool, fe); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | /** |
| 302 | * Finds first remote locator with best (lowest) priority that has a local |
| 303 | * peer locator with an underlying route to it. |
| 304 | * |
| 305 | */ |
| 306 | static u32 |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 307 | get_locator_pairs (lisp_cp_main_t * lcm, mapping_t * lcl_map, |
| 308 | mapping_t * rmt_map, locator_pair_t ** locator_pairs) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 309 | { |
Florin Coras | 3590ac5 | 2016-08-08 16:04:26 +0200 | [diff] [blame] | 310 | u32 i, limitp = 0, li, found = 0, esi; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 311 | locator_set_t *rmt_ls, *lcl_ls; |
| 312 | ip_address_t _lcl_addr, *lcl_addr = &_lcl_addr; |
| 313 | locator_t *lp, *rmt = 0; |
| 314 | uword *checked = 0; |
Florin Coras | bb5c22f | 2016-08-02 02:31:03 +0200 | [diff] [blame] | 315 | locator_pair_t pair; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 316 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 317 | rmt_ls = |
| 318 | pool_elt_at_index (lcm->locator_set_pool, rmt_map->locator_set_index); |
| 319 | lcl_ls = |
| 320 | pool_elt_at_index (lcm->locator_set_pool, lcl_map->locator_set_index); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 321 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 322 | if (!rmt_ls || vec_len (rmt_ls->locator_indices) == 0) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 323 | return 0; |
| 324 | |
Florin Coras | 3590ac5 | 2016-08-08 16:04:26 +0200 | [diff] [blame] | 325 | while (1) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 326 | { |
| 327 | rmt = 0; |
| 328 | |
| 329 | /* find unvisited remote locator with best priority */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 330 | for (i = 0; i < vec_len (rmt_ls->locator_indices); i++) |
| 331 | { |
| 332 | if (0 != hash_get (checked, i)) |
| 333 | continue; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 334 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 335 | li = vec_elt (rmt_ls->locator_indices, i); |
| 336 | lp = pool_elt_at_index (lcm->locator_pool, li); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 337 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 338 | /* we don't support non-IP locators for now */ |
| 339 | if (gid_address_type (&lp->address) != GID_ADDR_IP_PREFIX) |
| 340 | continue; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 341 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 342 | if ((found && lp->priority == limitp) |
| 343 | || (!found && lp->priority >= limitp)) |
| 344 | { |
| 345 | rmt = lp; |
Florin Coras | 3590ac5 | 2016-08-08 16:04:26 +0200 | [diff] [blame] | 346 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 347 | /* don't search for locators with lower priority and don't |
| 348 | * check this locator again*/ |
| 349 | limitp = lp->priority; |
| 350 | hash_set (checked, i, 1); |
| 351 | break; |
| 352 | } |
| 353 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 354 | /* check if a local locator with a route to remote locator exists */ |
| 355 | if (rmt != 0) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 356 | { |
| 357 | /* find egress sw_if_index for rmt locator */ |
| 358 | esi = |
| 359 | ip_fib_get_egress_iface_for_dst (lcm, |
| 360 | &gid_address_ip (&rmt->address)); |
| 361 | if ((u32) ~ 0 == esi) |
| 362 | continue; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 363 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 364 | for (i = 0; i < vec_len (lcl_ls->locator_indices); i++) |
| 365 | { |
| 366 | li = vec_elt (lcl_ls->locator_indices, i); |
| 367 | locator_t *sl = pool_elt_at_index (lcm->locator_pool, li); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 368 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 369 | /* found local locator with the needed sw_if_index */ |
| 370 | if (sl->sw_if_index == esi) |
| 371 | { |
| 372 | /* and it has an address */ |
| 373 | if (0 == ip_interface_get_first_ip_address (lcm, |
| 374 | sl->sw_if_index, |
| 375 | gid_address_ip_version |
| 376 | (&rmt->address), |
| 377 | lcl_addr)) |
| 378 | continue; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 379 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 380 | memset (&pair, 0, sizeof (pair)); |
| 381 | ip_address_copy (&pair.rmt_loc, |
| 382 | &gid_address_ip (&rmt->address)); |
| 383 | ip_address_copy (&pair.lcl_loc, lcl_addr); |
| 384 | pair.weight = rmt->weight; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 385 | pair.priority = rmt->priority; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 386 | vec_add1 (locator_pairs[0], pair); |
| 387 | found = 1; |
| 388 | } |
| 389 | } |
| 390 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 391 | else |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 392 | break; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 393 | } |
Florin Coras | 3590ac5 | 2016-08-08 16:04:26 +0200 | [diff] [blame] | 394 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 395 | hash_free (checked); |
Florin Coras | 3590ac5 | 2016-08-08 16:04:26 +0200 | [diff] [blame] | 396 | return found; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | static void |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 400 | gid_address_sd_to_flat (gid_address_t * dst, gid_address_t * src, |
| 401 | fid_address_t * fid) |
| 402 | { |
| 403 | ASSERT (GID_ADDR_SRC_DST == gid_address_type (src)); |
| 404 | |
| 405 | dst[0] = src[0]; |
| 406 | |
| 407 | switch (fid_addr_type (fid)) |
| 408 | { |
| 409 | case FID_ADDR_IP_PREF: |
| 410 | gid_address_type (dst) = GID_ADDR_IP_PREFIX; |
| 411 | gid_address_ippref (dst) = fid_addr_ippref (fid); |
| 412 | break; |
| 413 | case FID_ADDR_MAC: |
| 414 | gid_address_type (dst) = GID_ADDR_MAC; |
| 415 | mac_copy (gid_address_mac (dst), fid_addr_mac (fid)); |
| 416 | break; |
| 417 | default: |
| 418 | clib_warning ("Unsupported fid type %d!", fid_addr_type (fid)); |
| 419 | break; |
| 420 | } |
| 421 | } |
| 422 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 423 | u8 |
| 424 | vnet_lisp_map_register_state_get (void) |
| 425 | { |
| 426 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 427 | return lcm->map_registering; |
| 428 | } |
| 429 | |
| 430 | u8 |
| 431 | vnet_lisp_rloc_probe_state_get (void) |
| 432 | { |
| 433 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 434 | return lcm->rloc_probing; |
| 435 | } |
| 436 | |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 437 | static void |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 438 | dp_add_fwd_entry (lisp_cp_main_t * lcm, u32 src_map_index, u32 dst_map_index) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 439 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 440 | vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a; |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 441 | gid_address_t *rmt_eid, *lcl_eid; |
| 442 | mapping_t *lcl_map, *rmt_map; |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 443 | u32 sw_if_index, **rmts, rmts_idx; |
| 444 | uword *feip = 0, *dpid, *rmts_stored_idxp = 0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 445 | fwd_entry_t *fe; |
Filip Tehlar | 69a9b76 | 2016-09-23 10:00:52 +0200 | [diff] [blame] | 446 | u8 type, is_src_dst = 0; |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 447 | int rv; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 448 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 449 | memset (a, 0, sizeof (*a)); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 450 | |
| 451 | /* remove entry if it already exists */ |
| 452 | feip = hash_get (lcm->fwd_entry_by_mapping_index, dst_map_index); |
| 453 | if (feip) |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 454 | dp_del_fwd_entry (lcm, dst_map_index); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 455 | |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 456 | /* |
| 457 | * Determine local mapping and eid |
| 458 | */ |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 459 | if (lcm->flags & LISP_FLAG_PITR_MODE) |
| 460 | { |
| 461 | if (lcm->pitr_map_index != ~0) |
| 462 | lcl_map = pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index); |
| 463 | else |
| 464 | { |
| 465 | clib_warning ("no PITR mapping configured!"); |
| 466 | return; |
| 467 | } |
| 468 | } |
Filip Tehlar | f3e3fd3 | 2016-09-30 12:47:59 +0200 | [diff] [blame] | 469 | else |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 470 | lcl_map = pool_elt_at_index (lcm->mapping_pool, src_map_index); |
| 471 | lcl_eid = &lcl_map->eid; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 472 | |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 473 | /* |
| 474 | * Determine remote mapping and eid |
| 475 | */ |
| 476 | rmt_map = pool_elt_at_index (lcm->mapping_pool, dst_map_index); |
| 477 | rmt_eid = &rmt_map->eid; |
| 478 | |
| 479 | /* |
| 480 | * Build and insert data plane forwarding entry |
| 481 | */ |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 482 | a->is_add = 1; |
| 483 | |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 484 | if (MR_MODE_SRC_DST == lcm->map_request_mode) |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 485 | { |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 486 | if (GID_ADDR_SRC_DST == gid_address_type (rmt_eid)) |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 487 | { |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 488 | gid_address_sd_to_flat (&a->rmt_eid, rmt_eid, |
| 489 | &gid_address_sd_dst (rmt_eid)); |
| 490 | gid_address_sd_to_flat (&a->lcl_eid, rmt_eid, |
| 491 | &gid_address_sd_src (rmt_eid)); |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 492 | } |
| 493 | else |
| 494 | { |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 495 | gid_address_copy (&a->rmt_eid, rmt_eid); |
| 496 | gid_address_copy (&a->lcl_eid, lcl_eid); |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 497 | } |
Filip Tehlar | 69a9b76 | 2016-09-23 10:00:52 +0200 | [diff] [blame] | 498 | is_src_dst = 1; |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 499 | } |
| 500 | else |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 501 | gid_address_copy (&a->rmt_eid, rmt_eid); |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 502 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 503 | a->vni = gid_address_vni (&a->rmt_eid); |
Filip Tehlar | ed6b52b | 2017-03-22 09:02:33 +0100 | [diff] [blame] | 504 | a->is_src_dst = is_src_dst; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 505 | |
| 506 | /* get vrf or bd_index associated to vni */ |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 507 | type = gid_address_type (&a->rmt_eid); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 508 | if (GID_ADDR_IP_PREFIX == type) |
| 509 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 510 | dpid = hash_get (lcm->table_id_by_vni, a->vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 511 | if (!dpid) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 512 | { |
| 513 | clib_warning ("vni %d not associated to a vrf!", a->vni); |
| 514 | return; |
| 515 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 516 | a->table_id = dpid[0]; |
| 517 | } |
| 518 | else if (GID_ADDR_MAC == type) |
| 519 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 520 | dpid = hash_get (lcm->bd_id_by_vni, a->vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 521 | if (!dpid) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 522 | { |
| 523 | clib_warning ("vni %d not associated to a bridge domain !", a->vni); |
| 524 | return; |
| 525 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 526 | a->bd_id = dpid[0]; |
| 527 | } |
| 528 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 529 | /* find best locator pair that 1) verifies LISP policy 2) are connected */ |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 530 | rv = get_locator_pairs (lcm, lcl_map, rmt_map, &a->locator_pairs); |
| 531 | |
| 532 | /* Either rmt mapping is negative or we can't find underlay path. |
| 533 | * Try again with petr if configured */ |
| 534 | if (rv == 0 && (lcm->flags & LISP_FLAG_USE_PETR)) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 535 | { |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 536 | rmt_map = lisp_get_petr_mapping (lcm); |
| 537 | rv = get_locator_pairs (lcm, lcl_map, rmt_map, &a->locator_pairs); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 538 | } |
| 539 | |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 540 | /* negative entry */ |
| 541 | if (rv == 0) |
| 542 | { |
| 543 | a->is_negative = 1; |
| 544 | a->action = rmt_map->action; |
| 545 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 546 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 547 | rv = vnet_lisp_gpe_add_del_fwd_entry (a, &sw_if_index); |
| 548 | if (rv) |
| 549 | { |
| 550 | if (a->locator_pairs) |
| 551 | vec_free (a->locator_pairs); |
| 552 | return; |
| 553 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 554 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 555 | /* add tunnel to fwd entry table */ |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 556 | pool_get (lcm->fwd_entry_pool, fe); |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 557 | vnet_lisp_gpe_add_fwd_counters (a, fe - lcm->fwd_entry_pool); |
| 558 | |
Florin Coras | bb5c22f | 2016-08-02 02:31:03 +0200 | [diff] [blame] | 559 | fe->locator_pairs = a->locator_pairs; |
Filip Tehlar | 2fdaece | 2016-09-28 14:27:59 +0200 | [diff] [blame] | 560 | gid_address_copy (&fe->reid, &a->rmt_eid); |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 561 | |
| 562 | if (is_src_dst) |
| 563 | gid_address_copy (&fe->leid, &a->lcl_eid); |
| 564 | else |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 565 | gid_address_copy (&fe->leid, lcl_eid); |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 566 | |
Filip Tehlar | 69a9b76 | 2016-09-23 10:00:52 +0200 | [diff] [blame] | 567 | fe->is_src_dst = is_src_dst; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 568 | hash_set (lcm->fwd_entry_by_mapping_index, dst_map_index, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 569 | fe - lcm->fwd_entry_pool); |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 570 | |
| 571 | /* Add rmt mapping to the vector of adjacent mappings to lcl mapping */ |
| 572 | rmts_stored_idxp = |
| 573 | hash_get (lcm->lcl_to_rmt_adjs_by_lcl_idx, src_map_index); |
| 574 | if (!rmts_stored_idxp) |
| 575 | { |
| 576 | pool_get (lcm->lcl_to_rmt_adjacencies, rmts); |
| 577 | memset (rmts, 0, sizeof (*rmts)); |
| 578 | rmts_idx = rmts - lcm->lcl_to_rmt_adjacencies; |
| 579 | hash_set (lcm->lcl_to_rmt_adjs_by_lcl_idx, src_map_index, rmts_idx); |
| 580 | } |
| 581 | else |
| 582 | { |
| 583 | rmts_idx = (u32) (*rmts_stored_idxp); |
| 584 | rmts = pool_elt_at_index (lcm->lcl_to_rmt_adjacencies, rmts_idx); |
| 585 | } |
| 586 | vec_add1 (rmts[0], dst_map_index); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 587 | } |
| 588 | |
Filip Tehlar | ce1aae4 | 2017-01-04 10:42:25 +0100 | [diff] [blame] | 589 | typedef struct |
| 590 | { |
| 591 | u32 si; |
| 592 | u32 di; |
| 593 | } fwd_entry_mt_arg_t; |
| 594 | |
| 595 | static void * |
| 596 | dp_add_fwd_entry_thread_fn (void *arg) |
| 597 | { |
| 598 | fwd_entry_mt_arg_t *a = arg; |
| 599 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 600 | dp_add_fwd_entry (lcm, a->si, a->di); |
| 601 | return 0; |
| 602 | } |
| 603 | |
| 604 | static int |
| 605 | dp_add_fwd_entry_from_mt (u32 si, u32 di) |
| 606 | { |
| 607 | fwd_entry_mt_arg_t a; |
| 608 | |
| 609 | memset (&a, 0, sizeof (a)); |
| 610 | a.si = si; |
| 611 | a.di = di; |
| 612 | |
| 613 | vl_api_rpc_call_main_thread (dp_add_fwd_entry_thread_fn, |
| 614 | (u8 *) & a, sizeof (a)); |
| 615 | return 0; |
| 616 | } |
| 617 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 618 | /** |
Filip Tehlar | 69a9b76 | 2016-09-23 10:00:52 +0200 | [diff] [blame] | 619 | * Returns vector of adjacencies. |
| 620 | * |
| 621 | * The caller must free the vector returned by this function. |
| 622 | * |
| 623 | * @param vni virtual network identifier |
| 624 | * @return vector of adjacencies |
| 625 | */ |
| 626 | lisp_adjacency_t * |
| 627 | vnet_lisp_adjacencies_get_by_vni (u32 vni) |
| 628 | { |
| 629 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 630 | fwd_entry_t *fwd; |
| 631 | lisp_adjacency_t *adjs = 0, adj; |
| 632 | |
| 633 | /* *INDENT-OFF* */ |
| 634 | pool_foreach(fwd, lcm->fwd_entry_pool, |
| 635 | ({ |
| 636 | if (gid_address_vni (&fwd->reid) != vni) |
| 637 | continue; |
| 638 | |
| 639 | gid_address_copy (&adj.reid, &fwd->reid); |
| 640 | gid_address_copy (&adj.leid, &fwd->leid); |
| 641 | vec_add1 (adjs, adj); |
| 642 | })); |
| 643 | /* *INDENT-ON* */ |
| 644 | |
| 645 | return adjs; |
| 646 | } |
| 647 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 648 | static lisp_msmr_t * |
| 649 | get_map_server (ip_address_t * a) |
| 650 | { |
| 651 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 652 | lisp_msmr_t *m; |
| 653 | |
| 654 | vec_foreach (m, lcm->map_servers) |
| 655 | { |
| 656 | if (!ip_address_cmp (&m->address, a)) |
| 657 | { |
| 658 | return m; |
| 659 | } |
| 660 | } |
| 661 | return 0; |
| 662 | } |
| 663 | |
| 664 | static lisp_msmr_t * |
| 665 | get_map_resolver (ip_address_t * a) |
| 666 | { |
| 667 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 668 | lisp_msmr_t *m; |
| 669 | |
| 670 | vec_foreach (m, lcm->map_resolvers) |
| 671 | { |
| 672 | if (!ip_address_cmp (&m->address, a)) |
| 673 | { |
| 674 | return m; |
| 675 | } |
| 676 | } |
| 677 | return 0; |
| 678 | } |
| 679 | |
| 680 | int |
| 681 | vnet_lisp_add_del_map_server (ip_address_t * addr, u8 is_add) |
| 682 | { |
| 683 | u32 i; |
| 684 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 685 | lisp_msmr_t _ms, *ms = &_ms; |
| 686 | |
| 687 | if (vnet_lisp_enable_disable_status () == 0) |
| 688 | { |
| 689 | clib_warning ("LISP is disabled!"); |
| 690 | return VNET_API_ERROR_LISP_DISABLED; |
| 691 | } |
| 692 | |
| 693 | if (is_add) |
| 694 | { |
| 695 | if (get_map_server (addr)) |
| 696 | { |
| 697 | clib_warning ("map-server %U already exists!", format_ip_address, |
| 698 | addr); |
| 699 | return -1; |
| 700 | } |
| 701 | |
| 702 | memset (ms, 0, sizeof (*ms)); |
| 703 | ip_address_copy (&ms->address, addr); |
| 704 | vec_add1 (lcm->map_servers, ms[0]); |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 705 | |
| 706 | if (vec_len (lcm->map_servers) == 1) |
| 707 | lcm->do_map_server_election = 1; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 708 | } |
| 709 | else |
| 710 | { |
| 711 | for (i = 0; i < vec_len (lcm->map_servers); i++) |
| 712 | { |
| 713 | ms = vec_elt_at_index (lcm->map_servers, i); |
| 714 | if (!ip_address_cmp (&ms->address, addr)) |
| 715 | { |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 716 | if (!ip_address_cmp (&ms->address, &lcm->active_map_server)) |
| 717 | lcm->do_map_server_election = 1; |
| 718 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 719 | vec_del1 (lcm->map_servers, i); |
| 720 | break; |
| 721 | } |
| 722 | } |
| 723 | } |
| 724 | |
| 725 | return 0; |
| 726 | } |
| 727 | |
Filip Tehlar | 69a9b76 | 2016-09-23 10:00:52 +0200 | [diff] [blame] | 728 | /** |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 729 | * Add/remove mapping to/from map-cache. Overwriting not allowed. |
| 730 | */ |
| 731 | int |
| 732 | vnet_lisp_map_cache_add_del (vnet_lisp_add_del_mapping_args_t * a, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 733 | u32 * map_index_result) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 734 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 735 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 736 | u32 mi, *map_indexp, map_index, i; |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 737 | u32 **rmts = 0, *remote_idxp, rmts_itr, remote_idx; |
| 738 | uword *rmts_idxp; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 739 | mapping_t *m, *old_map; |
| 740 | u32 **eid_indexes; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 741 | |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 742 | if (gid_address_type (&a->eid) == GID_ADDR_NSH) |
| 743 | { |
| 744 | if (gid_address_vni (&a->eid) != 0) |
| 745 | { |
| 746 | clib_warning ("Supported only default VNI for NSH!"); |
| 747 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 748 | } |
| 749 | if (gid_address_nsh_spi (&a->eid) > MAX_VALUE_U24) |
| 750 | { |
| 751 | clib_warning ("SPI is greater than 24bit!"); |
| 752 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 753 | } |
| 754 | } |
| 755 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 756 | mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid); |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 757 | old_map = mi != ~0 ? pool_elt_at_index (lcm->mapping_pool, mi) : 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 758 | if (a->is_add) |
| 759 | { |
| 760 | /* TODO check if overwriting and take appropriate actions */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 761 | if (mi != GID_LOOKUP_MISS && !gid_address_cmp (&old_map->eid, &a->eid)) |
| 762 | { |
| 763 | clib_warning ("eid %U found in the eid-table", format_gid_address, |
| 764 | &a->eid); |
| 765 | return VNET_API_ERROR_VALUE_EXIST; |
| 766 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 767 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 768 | pool_get (lcm->mapping_pool, m); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 769 | gid_address_copy (&m->eid, &a->eid); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 770 | m->locator_set_index = a->locator_set_index; |
| 771 | m->ttl = a->ttl; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 772 | m->action = a->action; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 773 | m->local = a->local; |
Filip Tehlar | 3cd9e73 | 2016-08-23 10:52:44 +0200 | [diff] [blame] | 774 | m->is_static = a->is_static; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 775 | m->key = vec_dup (a->key); |
| 776 | m->key_id = a->key_id; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 777 | |
| 778 | map_index = m - lcm->mapping_pool; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 779 | gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, map_index, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 780 | 1); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 781 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 782 | if (pool_is_free_index (lcm->locator_set_pool, a->locator_set_index)) |
| 783 | { |
| 784 | clib_warning ("Locator set with index %d doesn't exist", |
| 785 | a->locator_set_index); |
| 786 | return VNET_API_ERROR_INVALID_VALUE; |
| 787 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 788 | |
| 789 | /* add eid to list of eids supported by locator-set */ |
| 790 | vec_validate (lcm->locator_set_to_eids, a->locator_set_index); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 791 | eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, |
| 792 | a->locator_set_index); |
| 793 | vec_add1 (eid_indexes[0], map_index); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 794 | |
| 795 | if (a->local) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 796 | { |
| 797 | /* mark as local */ |
| 798 | vec_add1 (lcm->local_mappings_indexes, map_index); |
| 799 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 800 | map_index_result[0] = map_index; |
| 801 | } |
| 802 | else |
| 803 | { |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 804 | if (mi == GID_LOOKUP_MISS) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 805 | { |
| 806 | clib_warning ("eid %U not found in the eid-table", |
| 807 | format_gid_address, &a->eid); |
| 808 | return VNET_API_ERROR_INVALID_VALUE; |
| 809 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 810 | |
| 811 | /* clear locator-set to eids binding */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 812 | eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, |
| 813 | a->locator_set_index); |
| 814 | for (i = 0; i < vec_len (eid_indexes[0]); i++) |
| 815 | { |
| 816 | map_indexp = vec_elt_at_index (eid_indexes[0], i); |
| 817 | if (map_indexp[0] == mi) |
| 818 | break; |
| 819 | } |
| 820 | vec_del1 (eid_indexes[0], i); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 821 | |
| 822 | /* remove local mark if needed */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 823 | m = pool_elt_at_index (lcm->mapping_pool, mi); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 824 | if (m->local) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 825 | { |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 826 | /* Remove adjacencies associated with the local mapping */ |
| 827 | rmts_idxp = hash_get (lcm->lcl_to_rmt_adjs_by_lcl_idx, mi); |
| 828 | if (rmts_idxp) |
| 829 | { |
| 830 | rmts = |
| 831 | pool_elt_at_index (lcm->lcl_to_rmt_adjacencies, rmts_idxp[0]); |
| 832 | vec_foreach (remote_idxp, rmts[0]) |
| 833 | { |
| 834 | dp_del_fwd_entry (lcm, remote_idxp[0]); |
| 835 | } |
| 836 | vec_free (rmts[0]); |
| 837 | pool_put (lcm->lcl_to_rmt_adjacencies, rmts); |
| 838 | hash_unset (lcm->lcl_to_rmt_adjs_by_lcl_idx, mi); |
| 839 | } |
| 840 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 841 | u32 k, *lm_indexp; |
| 842 | for (k = 0; k < vec_len (lcm->local_mappings_indexes); k++) |
| 843 | { |
| 844 | lm_indexp = vec_elt_at_index (lcm->local_mappings_indexes, k); |
| 845 | if (lm_indexp[0] == mi) |
| 846 | break; |
| 847 | } |
| 848 | vec_del1 (lcm->local_mappings_indexes, k); |
| 849 | } |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 850 | else |
| 851 | { |
| 852 | /* Remove remote (if present) from the vectors of lcl-to-rmts |
| 853 | * TODO: Address this in a more efficient way. |
| 854 | */ |
| 855 | /* *INDENT-OFF* */ |
| 856 | pool_foreach (rmts, lcm->lcl_to_rmt_adjacencies, |
| 857 | ({ |
| 858 | vec_foreach_index (rmts_itr, rmts[0]) |
| 859 | { |
| 860 | remote_idx = vec_elt (rmts[0], rmts_itr); |
| 861 | if (mi == remote_idx) |
| 862 | { |
| 863 | vec_del1 (rmts[0], rmts_itr); |
| 864 | break; |
| 865 | } |
| 866 | } |
| 867 | })); |
| 868 | /* *INDENT-ON* */ |
| 869 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 870 | |
| 871 | /* remove mapping from dictionary */ |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 872 | gid_dictionary_add_del (&lcm->mapping_index_by_gid, &a->eid, 0, 0); |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 873 | gid_address_free (&m->eid); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 874 | pool_put_index (lcm->mapping_pool, mi); |
| 875 | } |
| 876 | |
| 877 | return 0; |
| 878 | } |
| 879 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 880 | /** |
| 881 | * Add/update/delete mapping to/in/from map-cache. |
| 882 | */ |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 883 | int |
| 884 | vnet_lisp_add_del_local_mapping (vnet_lisp_add_del_mapping_args_t * a, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 885 | u32 * map_index_result) |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 886 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 887 | uword *dp_table = 0; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 888 | u32 vni; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 889 | u8 type; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 890 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 891 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 892 | |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 893 | if (vnet_lisp_enable_disable_status () == 0) |
| 894 | { |
| 895 | clib_warning ("LISP is disabled!"); |
| 896 | return VNET_API_ERROR_LISP_DISABLED; |
| 897 | } |
| 898 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 899 | vni = gid_address_vni (&a->eid); |
| 900 | type = gid_address_type (&a->eid); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 901 | if (GID_ADDR_IP_PREFIX == type) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 902 | dp_table = hash_get (lcm->table_id_by_vni, vni); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 903 | else if (GID_ADDR_MAC == type) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 904 | dp_table = hash_get (lcm->bd_id_by_vni, vni); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 905 | |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 906 | if (!dp_table && GID_ADDR_NSH != type) |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 907 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 908 | clib_warning ("vni %d not associated to a %s!", vni, |
| 909 | GID_ADDR_IP_PREFIX == type ? "vrf" : "bd"); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 910 | return VNET_API_ERROR_INVALID_VALUE; |
| 911 | } |
| 912 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 913 | /* store/remove mapping from map-cache */ |
| 914 | return vnet_lisp_map_cache_add_del (a, map_index_result); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 915 | } |
| 916 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 917 | static void |
| 918 | add_l2_arp_bd (BVT (clib_bihash_kv) * kvp, void *arg) |
| 919 | { |
| 920 | u32 **ht = arg; |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 921 | u32 version = (u32) kvp->key[0]; |
| 922 | if (IP6 == version) |
| 923 | return; |
| 924 | |
| 925 | u32 bd = (u32) (kvp->key[0] >> 32); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 926 | hash_set (ht[0], bd, 0); |
| 927 | } |
| 928 | |
| 929 | u32 * |
| 930 | vnet_lisp_l2_arp_bds_get (void) |
| 931 | { |
| 932 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 933 | u32 *bds = 0; |
| 934 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 935 | gid_dict_foreach_l2_arp_ndp_entry (&lcm->mapping_index_by_gid, |
| 936 | add_l2_arp_bd, &bds); |
| 937 | return bds; |
| 938 | } |
| 939 | |
| 940 | static void |
| 941 | add_ndp_bd (BVT (clib_bihash_kv) * kvp, void *arg) |
| 942 | { |
| 943 | u32 **ht = arg; |
| 944 | u32 version = (u32) kvp->key[0]; |
| 945 | if (IP4 == version) |
| 946 | return; |
| 947 | |
| 948 | u32 bd = (u32) (kvp->key[0] >> 32); |
| 949 | hash_set (ht[0], bd, 0); |
| 950 | } |
| 951 | |
| 952 | u32 * |
| 953 | vnet_lisp_ndp_bds_get (void) |
| 954 | { |
| 955 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 956 | u32 *bds = 0; |
| 957 | |
| 958 | gid_dict_foreach_l2_arp_ndp_entry (&lcm->mapping_index_by_gid, |
| 959 | add_ndp_bd, &bds); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 960 | return bds; |
| 961 | } |
| 962 | |
| 963 | typedef struct |
| 964 | { |
| 965 | void *vector; |
| 966 | u32 bd; |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 967 | } lisp_add_l2_arp_ndp_args_t; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 968 | |
| 969 | static void |
| 970 | add_l2_arp_entry (BVT (clib_bihash_kv) * kvp, void *arg) |
| 971 | { |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 972 | lisp_add_l2_arp_ndp_args_t *a = arg; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 973 | lisp_api_l2_arp_entry_t **vector = a->vector, e; |
| 974 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 975 | u32 version = (u32) kvp->key[0]; |
| 976 | if (IP6 == version) |
| 977 | return; |
| 978 | |
| 979 | u32 bd = (u32) (kvp->key[0] >> 32); |
| 980 | |
| 981 | if (bd == a->bd) |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 982 | { |
| 983 | mac_copy (e.mac, (void *) &kvp->value); |
| 984 | e.ip4 = (u32) kvp->key[1]; |
| 985 | vec_add1 (vector[0], e); |
| 986 | } |
| 987 | } |
| 988 | |
| 989 | lisp_api_l2_arp_entry_t * |
| 990 | vnet_lisp_l2_arp_entries_get_by_bd (u32 bd) |
| 991 | { |
| 992 | lisp_api_l2_arp_entry_t *entries = 0; |
| 993 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 994 | lisp_add_l2_arp_ndp_args_t a; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 995 | |
| 996 | a.vector = &entries; |
| 997 | a.bd = bd; |
| 998 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 999 | gid_dict_foreach_l2_arp_ndp_entry (&lcm->mapping_index_by_gid, |
| 1000 | add_l2_arp_entry, &a); |
| 1001 | return entries; |
| 1002 | } |
| 1003 | |
| 1004 | static void |
| 1005 | add_ndp_entry (BVT (clib_bihash_kv) * kvp, void *arg) |
| 1006 | { |
| 1007 | lisp_add_l2_arp_ndp_args_t *a = arg; |
| 1008 | lisp_api_ndp_entry_t **vector = a->vector, e; |
| 1009 | |
| 1010 | u32 version = (u32) kvp->key[0]; |
| 1011 | if (IP4 == version) |
| 1012 | return; |
| 1013 | |
| 1014 | u32 bd = (u32) (kvp->key[0] >> 32); |
| 1015 | |
| 1016 | if (bd == a->bd) |
| 1017 | { |
| 1018 | mac_copy (e.mac, (void *) &kvp->value); |
| 1019 | clib_memcpy (e.ip6, &kvp->key[1], 16); |
| 1020 | vec_add1 (vector[0], e); |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | lisp_api_ndp_entry_t * |
| 1025 | vnet_lisp_ndp_entries_get_by_bd (u32 bd) |
| 1026 | { |
| 1027 | lisp_api_ndp_entry_t *entries = 0; |
| 1028 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1029 | lisp_add_l2_arp_ndp_args_t a; |
| 1030 | |
| 1031 | a.vector = &entries; |
| 1032 | a.bd = bd; |
| 1033 | |
| 1034 | gid_dict_foreach_l2_arp_ndp_entry (&lcm->mapping_index_by_gid, |
| 1035 | add_ndp_entry, &a); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 1036 | return entries; |
| 1037 | } |
| 1038 | |
| 1039 | int |
Filip Tehlar | 6492964 | 2017-09-20 08:41:23 +0200 | [diff] [blame] | 1040 | vnet_lisp_add_del_l2_arp_ndp_entry (gid_address_t * key, u8 * mac, u8 is_add) |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 1041 | { |
| 1042 | if (vnet_lisp_enable_disable_status () == 0) |
| 1043 | { |
| 1044 | clib_warning ("LISP is disabled!"); |
| 1045 | return VNET_API_ERROR_LISP_DISABLED; |
| 1046 | } |
| 1047 | |
| 1048 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1049 | int rc = 0; |
| 1050 | |
| 1051 | u64 res = gid_dictionary_lookup (&lcm->mapping_index_by_gid, key); |
| 1052 | if (is_add) |
| 1053 | { |
| 1054 | if (res != GID_LOOKUP_MISS_L2) |
| 1055 | { |
| 1056 | clib_warning ("Entry %U exists in DB!", format_gid_address, key); |
| 1057 | return VNET_API_ERROR_ENTRY_ALREADY_EXISTS; |
| 1058 | } |
| 1059 | u64 val = mac_to_u64 (mac); |
| 1060 | gid_dictionary_add_del (&lcm->mapping_index_by_gid, key, val, |
| 1061 | 1 /* is_add */ ); |
| 1062 | } |
| 1063 | else |
| 1064 | { |
| 1065 | if (res == GID_LOOKUP_MISS_L2) |
| 1066 | { |
Filip Tehlar | 6492964 | 2017-09-20 08:41:23 +0200 | [diff] [blame] | 1067 | clib_warning ("ONE entry %U not found - cannot delete!", |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 1068 | format_gid_address, key); |
| 1069 | return -1; |
| 1070 | } |
| 1071 | gid_dictionary_add_del (&lcm->mapping_index_by_gid, key, 0, |
| 1072 | 0 /* is_add */ ); |
| 1073 | } |
| 1074 | |
| 1075 | return rc; |
| 1076 | } |
| 1077 | |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1078 | int |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1079 | vnet_lisp_eid_table_map (u32 vni, u32 dp_id, u8 is_l2, u8 is_add) |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1080 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1081 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1082 | uword *dp_idp, *vnip, **dp_table_by_vni, **vni_by_dp_table; |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1083 | |
| 1084 | if (vnet_lisp_enable_disable_status () == 0) |
| 1085 | { |
| 1086 | clib_warning ("LISP is disabled!"); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 1087 | return VNET_API_ERROR_LISP_DISABLED; |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1088 | } |
| 1089 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1090 | dp_table_by_vni = is_l2 ? &lcm->bd_id_by_vni : &lcm->table_id_by_vni; |
| 1091 | vni_by_dp_table = is_l2 ? &lcm->vni_by_bd_id : &lcm->vni_by_table_id; |
| 1092 | |
| 1093 | if (!is_l2 && (vni == 0 || dp_id == 0)) |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1094 | { |
| 1095 | clib_warning ("can't add/del default vni-vrf mapping!"); |
| 1096 | return -1; |
| 1097 | } |
| 1098 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1099 | dp_idp = hash_get (dp_table_by_vni[0], vni); |
| 1100 | vnip = hash_get (vni_by_dp_table[0], dp_id); |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1101 | |
| 1102 | if (is_add) |
| 1103 | { |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1104 | if (dp_idp || vnip) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1105 | { |
| 1106 | clib_warning ("vni %d or vrf %d already used in vrf/vni " |
| 1107 | "mapping!", vni, dp_id); |
| 1108 | return -1; |
| 1109 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1110 | hash_set (dp_table_by_vni[0], vni, dp_id); |
| 1111 | hash_set (vni_by_dp_table[0], dp_id, vni); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1112 | |
| 1113 | /* create dp iface */ |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 1114 | dp_add_del_iface (lcm, vni, is_l2, 1 /* is_add */ , |
| 1115 | 1 /* with_default_route */ ); |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1116 | } |
| 1117 | else |
| 1118 | { |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1119 | if (!dp_idp || !vnip) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1120 | { |
| 1121 | clib_warning ("vni %d or vrf %d not used in any vrf/vni! " |
| 1122 | "mapping!", vni, dp_id); |
| 1123 | return -1; |
| 1124 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1125 | /* remove dp iface */ |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 1126 | dp_add_del_iface (lcm, vni, is_l2, 0 /* is_add */ , 0 /* unused */ ); |
Filip Tehlar | fc56841 | 2017-04-05 10:06:03 +0200 | [diff] [blame] | 1127 | |
| 1128 | hash_unset (dp_table_by_vni[0], vni); |
| 1129 | hash_unset (vni_by_dp_table[0], dp_id); |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1130 | } |
| 1131 | return 0; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 1132 | |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 1133 | } |
| 1134 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1135 | /* return 0 if the two locator sets are identical 1 otherwise */ |
| 1136 | static u8 |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1137 | compare_locators (lisp_cp_main_t * lcm, u32 * old_ls_indexes, |
| 1138 | locator_t * new_locators) |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1139 | { |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1140 | u32 i, old_li; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1141 | locator_t *old_loc, *new_loc; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1142 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1143 | if (vec_len (old_ls_indexes) != vec_len (new_locators)) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1144 | return 1; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1145 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1146 | for (i = 0; i < vec_len (new_locators); i++) |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1147 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1148 | old_li = vec_elt (old_ls_indexes, i); |
| 1149 | old_loc = pool_elt_at_index (lcm->locator_pool, old_li); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1150 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1151 | new_loc = vec_elt_at_index (new_locators, i); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1152 | |
| 1153 | if (locator_cmp (old_loc, new_loc)) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1154 | return 1; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1155 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1156 | return 0; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1157 | } |
| 1158 | |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 1159 | typedef struct |
| 1160 | { |
| 1161 | u8 is_negative; |
| 1162 | void *lcm; |
| 1163 | gid_address_t *eids_to_be_deleted; |
| 1164 | } remove_mapping_args_t; |
| 1165 | |
| 1166 | /** |
| 1167 | * Callback invoked when a sub-prefix is found |
| 1168 | */ |
| 1169 | static void |
| 1170 | remove_mapping_if_needed (u32 mi, void *arg) |
| 1171 | { |
| 1172 | u8 delete = 0; |
| 1173 | remove_mapping_args_t *a = arg; |
| 1174 | lisp_cp_main_t *lcm = a->lcm; |
| 1175 | mapping_t *m; |
| 1176 | locator_set_t *ls; |
| 1177 | |
| 1178 | m = pool_elt_at_index (lcm->mapping_pool, mi); |
| 1179 | if (!m) |
| 1180 | return; |
| 1181 | |
| 1182 | ls = pool_elt_at_index (lcm->locator_set_pool, m->locator_set_index); |
| 1183 | |
| 1184 | if (a->is_negative) |
| 1185 | { |
| 1186 | if (0 != vec_len (ls->locator_indices)) |
| 1187 | delete = 1; |
| 1188 | } |
| 1189 | else |
| 1190 | { |
| 1191 | if (0 == vec_len (ls->locator_indices)) |
| 1192 | delete = 1; |
| 1193 | } |
| 1194 | |
| 1195 | if (delete) |
| 1196 | vec_add1 (a->eids_to_be_deleted, m->eid); |
| 1197 | } |
| 1198 | |
| 1199 | /** |
| 1200 | * This function searches map cache and looks for IP prefixes that are subset |
| 1201 | * of the provided one. If such prefix is found depending on 'is_negative' |
| 1202 | * it does follows: |
| 1203 | * |
| 1204 | * 1) if is_negative is true and found prefix points to positive mapping, |
| 1205 | * then the mapping is removed |
| 1206 | * 2) if is_negative is false and found prefix points to negative mapping, |
| 1207 | * then the mapping is removed |
| 1208 | */ |
| 1209 | static void |
| 1210 | remove_overlapping_sub_prefixes (lisp_cp_main_t * lcm, gid_address_t * eid, |
| 1211 | u8 is_negative) |
| 1212 | { |
| 1213 | gid_address_t *e; |
| 1214 | remove_mapping_args_t a; |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1215 | |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 1216 | memset (&a, 0, sizeof (a)); |
| 1217 | |
| 1218 | /* do this only in src/dst mode ... */ |
| 1219 | if (MR_MODE_SRC_DST != lcm->map_request_mode) |
| 1220 | return; |
| 1221 | |
| 1222 | /* ... and only for IP prefix */ |
| 1223 | if (GID_ADDR_SRC_DST != gid_address_type (eid) |
| 1224 | || (FID_ADDR_IP_PREF != gid_address_sd_dst_type (eid))) |
| 1225 | return; |
| 1226 | |
| 1227 | a.is_negative = is_negative; |
| 1228 | a.lcm = lcm; |
| 1229 | |
| 1230 | gid_dict_foreach_subprefix (&lcm->mapping_index_by_gid, eid, |
| 1231 | remove_mapping_if_needed, &a); |
| 1232 | |
| 1233 | vec_foreach (e, a.eids_to_be_deleted) |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 1234 | { |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1235 | vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args; |
| 1236 | |
| 1237 | memset (adj_args, 0, sizeof (adj_args[0])); |
| 1238 | gid_address_copy (&adj_args->reid, e); |
| 1239 | adj_args->is_add = 0; |
| 1240 | if (vnet_lisp_add_del_adjacency (adj_args)) |
| 1241 | clib_warning ("failed to del adjacency!"); |
| 1242 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1243 | vnet_lisp_del_mapping (e, NULL); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 1244 | } |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 1245 | |
| 1246 | vec_free (a.eids_to_be_deleted); |
| 1247 | } |
| 1248 | |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 1249 | static void |
| 1250 | mapping_delete_timer (lisp_cp_main_t * lcm, u32 mi) |
| 1251 | { |
| 1252 | timing_wheel_delete (&lcm->wheel, mi); |
| 1253 | } |
| 1254 | |
Filip Tehlar | a6bce49 | 2017-02-03 10:17:49 +0100 | [diff] [blame] | 1255 | static int |
| 1256 | is_local_ip (lisp_cp_main_t * lcm, ip_address_t * addr) |
| 1257 | { |
| 1258 | fib_node_index_t fei; |
| 1259 | fib_prefix_t prefix; |
| 1260 | fib_entry_flag_t flags; |
| 1261 | |
| 1262 | ip_address_to_fib_prefix (addr, &prefix); |
| 1263 | |
| 1264 | fei = fib_table_lookup (0, &prefix); |
| 1265 | flags = fib_entry_get_flags (fei); |
| 1266 | return (FIB_ENTRY_FLAG_LOCAL & flags); |
| 1267 | } |
| 1268 | |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1269 | /** |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1270 | * Adds/updates mapping. Does not program forwarding. |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1271 | * |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1272 | * @param a parameters of the new mapping |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1273 | * @param rlocs vector of remote locators |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1274 | * @param res_map_index index of the newly created mapping |
| 1275 | * @param locators_changed indicator if locators were updated in the mapping |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1276 | * @return return code |
| 1277 | */ |
| 1278 | int |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1279 | vnet_lisp_add_mapping (vnet_lisp_add_del_mapping_args_t * a, |
| 1280 | locator_t * rlocs, |
| 1281 | u32 * res_map_index, u8 * is_updated) |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1282 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1283 | vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args; |
| 1284 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1285 | u32 mi, ls_index = 0, dst_map_index; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1286 | mapping_t *old_map; |
Filip Tehlar | a6bce49 | 2017-02-03 10:17:49 +0100 | [diff] [blame] | 1287 | locator_t *loc; |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1288 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1289 | if (vnet_lisp_enable_disable_status () == 0) |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 1290 | { |
| 1291 | clib_warning ("LISP is disabled!"); |
| 1292 | return VNET_API_ERROR_LISP_DISABLED; |
| 1293 | } |
| 1294 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1295 | if (res_map_index) |
| 1296 | res_map_index[0] = ~0; |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1297 | if (is_updated) |
| 1298 | is_updated[0] = 0; |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1299 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1300 | memset (ls_args, 0, sizeof (ls_args[0])); |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1301 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1302 | ls_args->locators = rlocs; |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1303 | mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &a->eid); |
| 1304 | old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0; |
| 1305 | |
Paul Vinciguerra | bdc0e6b | 2018-09-22 05:32:50 -0700 | [diff] [blame] | 1306 | /* check if none of the locators match locally configured address */ |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1307 | vec_foreach (loc, rlocs) |
| 1308 | { |
| 1309 | ip_prefix_t *p = &gid_address_ippref (&loc->address); |
| 1310 | if (is_local_ip (lcm, &ip_prefix_addr (p))) |
| 1311 | { |
| 1312 | clib_warning ("RLOC %U matches a local address!", |
| 1313 | format_gid_address, &loc->address); |
| 1314 | return VNET_API_ERROR_LISP_RLOC_LOCAL; |
| 1315 | } |
| 1316 | } |
| 1317 | |
| 1318 | /* overwrite: if mapping already exists, decide if locators should be |
| 1319 | * updated and be done */ |
| 1320 | if (old_map && gid_address_cmp (&old_map->eid, &a->eid) == 0) |
| 1321 | { |
| 1322 | if (!a->is_static && (old_map->is_static || old_map->local)) |
| 1323 | { |
| 1324 | /* do not overwrite local or static remote mappings */ |
| 1325 | clib_warning ("mapping %U rejected due to collision with local " |
| 1326 | "or static remote mapping!", format_gid_address, |
| 1327 | &a->eid); |
| 1328 | return 0; |
| 1329 | } |
| 1330 | |
| 1331 | locator_set_t *old_ls; |
| 1332 | |
| 1333 | /* update mapping attributes */ |
| 1334 | old_map->action = a->action; |
| 1335 | if (old_map->action != a->action && NULL != is_updated) |
| 1336 | is_updated[0] = 1; |
| 1337 | |
| 1338 | old_map->authoritative = a->authoritative; |
| 1339 | old_map->ttl = a->ttl; |
| 1340 | |
| 1341 | old_ls = pool_elt_at_index (lcm->locator_set_pool, |
| 1342 | old_map->locator_set_index); |
| 1343 | if (compare_locators (lcm, old_ls->locator_indices, ls_args->locators)) |
| 1344 | { |
| 1345 | /* set locator-set index to overwrite */ |
| 1346 | ls_args->is_add = 1; |
| 1347 | ls_args->index = old_map->locator_set_index; |
| 1348 | vnet_lisp_add_del_locator_set (ls_args, 0); |
| 1349 | if (is_updated) |
| 1350 | is_updated[0] = 1; |
| 1351 | } |
| 1352 | if (res_map_index) |
| 1353 | res_map_index[0] = mi; |
| 1354 | } |
| 1355 | /* new mapping */ |
| 1356 | else |
| 1357 | { |
Filip Tehlar | 8d7a0b9 | 2017-10-18 07:10:25 -0700 | [diff] [blame] | 1358 | if (is_updated) |
| 1359 | is_updated[0] = 1; |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1360 | remove_overlapping_sub_prefixes (lcm, &a->eid, 0 == ls_args->locators); |
| 1361 | |
| 1362 | ls_args->is_add = 1; |
| 1363 | ls_args->index = ~0; |
| 1364 | |
| 1365 | vnet_lisp_add_del_locator_set (ls_args, &ls_index); |
| 1366 | |
| 1367 | /* add mapping */ |
| 1368 | a->is_add = 1; |
| 1369 | a->locator_set_index = ls_index; |
| 1370 | vnet_lisp_map_cache_add_del (a, &dst_map_index); |
| 1371 | |
| 1372 | if (res_map_index) |
| 1373 | res_map_index[0] = dst_map_index; |
| 1374 | } |
| 1375 | |
| 1376 | /* success */ |
| 1377 | return 0; |
| 1378 | } |
| 1379 | |
| 1380 | /** |
| 1381 | * Removes a mapping. Does not program forwarding. |
| 1382 | * |
Paul Vinciguerra | bdc0e6b | 2018-09-22 05:32:50 -0700 | [diff] [blame] | 1383 | * @param eid end-host identifier |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1384 | * @param res_map_index index of the removed mapping |
| 1385 | * @return return code |
| 1386 | */ |
| 1387 | int |
| 1388 | vnet_lisp_del_mapping (gid_address_t * eid, u32 * res_map_index) |
| 1389 | { |
| 1390 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1391 | vnet_lisp_add_del_mapping_args_t _m_args, *m_args = &_m_args; |
| 1392 | vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args; |
| 1393 | mapping_t *old_map; |
| 1394 | u32 mi; |
| 1395 | |
Dave Barach | 59b2565 | 2017-09-10 15:04:27 -0400 | [diff] [blame] | 1396 | memset (ls_args, 0, sizeof (ls_args[0])); |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1397 | memset (m_args, 0, sizeof (m_args[0])); |
| 1398 | if (res_map_index) |
| 1399 | res_map_index[0] = ~0; |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1400 | |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1401 | mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, eid); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1402 | old_map = ((u32) ~ 0 != mi) ? pool_elt_at_index (lcm->mapping_pool, mi) : 0; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1403 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1404 | if (old_map == 0 || gid_address_cmp (&old_map->eid, eid) != 0) |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1405 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1406 | clib_warning ("cannot delete mapping for eid %U", |
| 1407 | format_gid_address, eid); |
| 1408 | return -1; |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1409 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1410 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1411 | m_args->is_add = 0; |
| 1412 | gid_address_copy (&m_args->eid, eid); |
| 1413 | m_args->locator_set_index = old_map->locator_set_index; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1414 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1415 | /* delete mapping associated from map-cache */ |
| 1416 | vnet_lisp_map_cache_add_del (m_args, 0); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1417 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1418 | ls_args->is_add = 0; |
| 1419 | ls_args->index = old_map->locator_set_index; |
Filip Tehlar | b93222f | 2016-07-07 09:58:08 +0200 | [diff] [blame] | 1420 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1421 | /* delete locator set */ |
| 1422 | vnet_lisp_add_del_locator_set (ls_args, 0); |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 1423 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 1424 | /* delete timer associated to the mapping if any */ |
| 1425 | if (old_map->timer_set) |
| 1426 | mapping_delete_timer (lcm, mi); |
| 1427 | |
| 1428 | /* return old mapping index */ |
| 1429 | if (res_map_index) |
| 1430 | res_map_index[0] = mi; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1431 | |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1432 | /* success */ |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1433 | return 0; |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1434 | } |
| 1435 | |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1436 | int |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1437 | vnet_lisp_clear_all_remote_adjacencies (void) |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1438 | { |
| 1439 | int rv = 0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1440 | u32 mi, *map_indices = 0, *map_indexp; |
| 1441 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1442 | vnet_lisp_add_del_mapping_args_t _dm_args, *dm_args = &_dm_args; |
| 1443 | vnet_lisp_add_del_locator_set_args_t _ls, *ls = &_ls; |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1444 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1445 | /* *INDENT-OFF* */ |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1446 | pool_foreach_index (mi, lcm->mapping_pool, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1447 | ({ |
| 1448 | vec_add1 (map_indices, mi); |
| 1449 | })); |
| 1450 | /* *INDENT-ON* */ |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1451 | |
| 1452 | vec_foreach (map_indexp, map_indices) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1453 | { |
| 1454 | mapping_t *map = pool_elt_at_index (lcm->mapping_pool, map_indexp[0]); |
| 1455 | if (!map->local) |
| 1456 | { |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 1457 | dp_del_fwd_entry (lcm, map_indexp[0]); |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1458 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1459 | dm_args->is_add = 0; |
| 1460 | gid_address_copy (&dm_args->eid, &map->eid); |
| 1461 | dm_args->locator_set_index = map->locator_set_index; |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1462 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1463 | /* delete mapping associated to fwd entry */ |
| 1464 | vnet_lisp_map_cache_add_del (dm_args, 0); |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1465 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1466 | ls->is_add = 0; |
| 1467 | ls->local = 0; |
| 1468 | ls->index = map->locator_set_index; |
| 1469 | /* delete locator set */ |
| 1470 | rv = vnet_lisp_add_del_locator_set (ls, 0); |
| 1471 | if (rv != 0) |
| 1472 | goto cleanup; |
| 1473 | } |
| 1474 | } |
Filip Tehlar | 58f886a | 2016-05-30 15:57:40 +0200 | [diff] [blame] | 1475 | |
| 1476 | cleanup: |
| 1477 | if (map_indices) |
| 1478 | vec_free (map_indices); |
| 1479 | return rv; |
| 1480 | } |
| 1481 | |
Filip Tehlar | 195bcee | 2016-05-13 17:37:35 +0200 | [diff] [blame] | 1482 | /** |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1483 | * Adds adjacency or removes forwarding entry associated to remote mapping. |
| 1484 | * Note that adjacencies are not stored, they only result in forwarding entries |
| 1485 | * being created. |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1486 | */ |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1487 | int |
| 1488 | vnet_lisp_add_del_adjacency (vnet_lisp_add_del_adjacency_args_t * a) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1489 | { |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1490 | lisp_cp_main_t *lcm = &lisp_control_main; |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1491 | u32 local_mi, remote_mi = ~0; |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1492 | |
| 1493 | if (vnet_lisp_enable_disable_status () == 0) |
| 1494 | { |
| 1495 | clib_warning ("LISP is disabled!"); |
| 1496 | return VNET_API_ERROR_LISP_DISABLED; |
| 1497 | } |
| 1498 | |
Filip Tehlar | 69a9b76 | 2016-09-23 10:00:52 +0200 | [diff] [blame] | 1499 | remote_mi = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid, |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1500 | &a->reid, &a->leid); |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1501 | if (GID_LOOKUP_MISS == remote_mi) |
| 1502 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1503 | clib_warning ("Remote eid %U not found. Cannot add adjacency!", |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1504 | format_gid_address, &a->reid); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1505 | |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1506 | return -1; |
| 1507 | } |
| 1508 | |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1509 | if (a->is_add) |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1510 | { |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1511 | /* check if source eid has an associated mapping. If pitr mode is on, |
| 1512 | * just use the pitr's mapping */ |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 1513 | if (lcm->flags & LISP_FLAG_PITR_MODE) |
| 1514 | { |
| 1515 | if (lcm->pitr_map_index != ~0) |
| 1516 | { |
| 1517 | local_mi = lcm->pitr_map_index; |
| 1518 | } |
| 1519 | else |
| 1520 | { |
| 1521 | /* PITR mode is on, but no mapping is configured */ |
| 1522 | return -1; |
| 1523 | } |
| 1524 | } |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 1525 | else |
| 1526 | { |
| 1527 | if (gid_address_type (&a->reid) == GID_ADDR_NSH) |
| 1528 | { |
| 1529 | if (lcm->nsh_map_index == ~0) |
| 1530 | local_mi = GID_LOOKUP_MISS; |
| 1531 | else |
| 1532 | local_mi = lcm->nsh_map_index; |
| 1533 | } |
| 1534 | else |
| 1535 | { |
| 1536 | local_mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, |
| 1537 | &a->leid); |
| 1538 | } |
| 1539 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1540 | |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1541 | if (GID_LOOKUP_MISS == local_mi) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1542 | { |
| 1543 | clib_warning ("Local eid %U not found. Cannot add adjacency!", |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 1544 | format_gid_address, &a->leid); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1545 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1546 | return -1; |
| 1547 | } |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1548 | |
Florin Coras | 71893ac | 2016-07-10 20:09:32 +0200 | [diff] [blame] | 1549 | /* update forwarding */ |
| 1550 | dp_add_fwd_entry (lcm, local_mi, remote_mi); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1551 | } |
| 1552 | else |
Alberto Rodriguez-Natal | 8d66f9d | 2017-09-09 14:15:15 -0700 | [diff] [blame] | 1553 | dp_del_fwd_entry (lcm, remote_mi); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1554 | |
| 1555 | return 0; |
| 1556 | } |
| 1557 | |
| 1558 | int |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 1559 | vnet_lisp_set_map_request_mode (u8 mode) |
| 1560 | { |
| 1561 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1562 | |
| 1563 | if (vnet_lisp_enable_disable_status () == 0) |
| 1564 | { |
| 1565 | clib_warning ("LISP is disabled!"); |
| 1566 | return VNET_API_ERROR_LISP_DISABLED; |
| 1567 | } |
| 1568 | |
| 1569 | if (mode >= _MR_MODE_MAX) |
| 1570 | { |
| 1571 | clib_warning ("Invalid LISP map request mode %d!", mode); |
| 1572 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 1573 | } |
| 1574 | |
| 1575 | lcm->map_request_mode = mode; |
| 1576 | return 0; |
| 1577 | } |
| 1578 | |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1579 | int |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 1580 | vnet_lisp_nsh_set_locator_set (u8 * locator_set_name, u8 is_add) |
| 1581 | { |
| 1582 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1583 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 1584 | u32 locator_set_index = ~0; |
| 1585 | mapping_t *m; |
| 1586 | uword *p; |
| 1587 | |
| 1588 | if (vnet_lisp_enable_disable_status () == 0) |
| 1589 | { |
| 1590 | clib_warning ("LISP is disabled!"); |
| 1591 | return VNET_API_ERROR_LISP_DISABLED; |
| 1592 | } |
| 1593 | |
| 1594 | if (is_add) |
| 1595 | { |
| 1596 | if (lcm->nsh_map_index == (u32) ~ 0) |
| 1597 | { |
| 1598 | p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name); |
| 1599 | if (!p) |
| 1600 | { |
| 1601 | clib_warning ("locator-set %v doesn't exist", locator_set_name); |
| 1602 | return -1; |
| 1603 | } |
| 1604 | locator_set_index = p[0]; |
| 1605 | |
| 1606 | pool_get (lcm->mapping_pool, m); |
| 1607 | memset (m, 0, sizeof *m); |
| 1608 | m->locator_set_index = locator_set_index; |
| 1609 | m->local = 1; |
| 1610 | m->nsh_set = 1; |
| 1611 | lcm->nsh_map_index = m - lcm->mapping_pool; |
| 1612 | |
| 1613 | if (~0 == vnet_lisp_gpe_add_nsh_iface (lgm)) |
| 1614 | return -1; |
| 1615 | } |
| 1616 | } |
| 1617 | else |
| 1618 | { |
| 1619 | if (lcm->nsh_map_index != (u32) ~ 0) |
| 1620 | { |
| 1621 | /* remove NSH mapping */ |
| 1622 | pool_put_index (lcm->mapping_pool, lcm->nsh_map_index); |
| 1623 | lcm->nsh_map_index = ~0; |
| 1624 | vnet_lisp_gpe_del_nsh_iface (lgm); |
| 1625 | } |
| 1626 | } |
| 1627 | return 0; |
| 1628 | } |
| 1629 | |
| 1630 | int |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1631 | vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add) |
| 1632 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1633 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1634 | u32 locator_set_index = ~0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1635 | mapping_t *m; |
| 1636 | uword *p; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1637 | |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 1638 | if (vnet_lisp_enable_disable_status () == 0) |
| 1639 | { |
| 1640 | clib_warning ("LISP is disabled!"); |
| 1641 | return VNET_API_ERROR_LISP_DISABLED; |
| 1642 | } |
| 1643 | |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1644 | p = hash_get_mem (lcm->locator_set_index_by_name, locator_set_name); |
| 1645 | if (!p) |
| 1646 | { |
| 1647 | clib_warning ("locator-set %v doesn't exist", locator_set_name); |
| 1648 | return -1; |
| 1649 | } |
| 1650 | locator_set_index = p[0]; |
| 1651 | |
| 1652 | if (is_add) |
| 1653 | { |
| 1654 | pool_get (lcm->mapping_pool, m); |
| 1655 | m->locator_set_index = locator_set_index; |
| 1656 | m->local = 1; |
Filip Tehlar | 38206ee | 2017-02-20 17:31:57 +0100 | [diff] [blame] | 1657 | m->pitr_set = 1; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1658 | lcm->pitr_map_index = m - lcm->mapping_pool; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1659 | } |
| 1660 | else |
| 1661 | { |
| 1662 | /* remove pitr mapping */ |
| 1663 | pool_put_index (lcm->mapping_pool, lcm->pitr_map_index); |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 1664 | lcm->pitr_map_index = ~0; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 1665 | } |
| 1666 | return 0; |
| 1667 | } |
| 1668 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 1669 | int |
| 1670 | vnet_lisp_map_register_fallback_threshold_set (u32 value) |
| 1671 | { |
| 1672 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1673 | if (0 == value) |
| 1674 | { |
| 1675 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 1676 | } |
| 1677 | |
| 1678 | lcm->max_expired_map_registers = value; |
| 1679 | return 0; |
| 1680 | } |
| 1681 | |
| 1682 | u32 |
| 1683 | vnet_lisp_map_register_fallback_threshold_get (void) |
| 1684 | { |
| 1685 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1686 | return lcm->max_expired_map_registers; |
| 1687 | } |
| 1688 | |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 1689 | /** |
| 1690 | * Configure Proxy-ETR |
| 1691 | * |
| 1692 | * @param ip PETR's IP address |
| 1693 | * @param is_add Flag that indicates if this is an addition or removal |
| 1694 | * |
| 1695 | * return 0 on success |
| 1696 | */ |
| 1697 | int |
| 1698 | vnet_lisp_use_petr (ip_address_t * ip, u8 is_add) |
| 1699 | { |
| 1700 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1701 | u32 ls_index = ~0; |
| 1702 | mapping_t *m; |
| 1703 | vnet_lisp_add_del_locator_set_args_t _ls_args, *ls_args = &_ls_args; |
| 1704 | locator_t loc; |
| 1705 | |
| 1706 | if (vnet_lisp_enable_disable_status () == 0) |
| 1707 | { |
| 1708 | clib_warning ("LISP is disabled!"); |
| 1709 | return VNET_API_ERROR_LISP_DISABLED; |
| 1710 | } |
| 1711 | |
| 1712 | memset (ls_args, 0, sizeof (*ls_args)); |
| 1713 | |
| 1714 | if (is_add) |
| 1715 | { |
| 1716 | /* Create dummy petr locator-set */ |
Florin Coras | b69259a | 2017-03-09 14:39:54 -0800 | [diff] [blame] | 1717 | memset (&loc, 0, sizeof (loc)); |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 1718 | gid_address_from_ip (&loc.address, ip); |
| 1719 | loc.priority = 1; |
| 1720 | loc.state = loc.weight = 1; |
Florin Coras | 2743cc4 | 2017-01-29 16:42:20 -0800 | [diff] [blame] | 1721 | loc.local = 0; |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 1722 | |
| 1723 | ls_args->is_add = 1; |
| 1724 | ls_args->index = ~0; |
| 1725 | vec_add1 (ls_args->locators, loc); |
| 1726 | vnet_lisp_add_del_locator_set (ls_args, &ls_index); |
| 1727 | |
| 1728 | /* Add petr mapping */ |
| 1729 | pool_get (lcm->mapping_pool, m); |
| 1730 | m->locator_set_index = ls_index; |
| 1731 | lcm->petr_map_index = m - lcm->mapping_pool; |
| 1732 | |
| 1733 | /* Enable use-petr */ |
| 1734 | lcm->flags |= LISP_FLAG_USE_PETR; |
| 1735 | } |
| 1736 | else |
| 1737 | { |
| 1738 | m = pool_elt_at_index (lcm->mapping_pool, lcm->petr_map_index); |
| 1739 | |
| 1740 | /* Remove petr locator */ |
| 1741 | ls_args->is_add = 0; |
| 1742 | ls_args->index = m->locator_set_index; |
| 1743 | vnet_lisp_add_del_locator_set (ls_args, 0); |
| 1744 | |
| 1745 | /* Remove petr mapping */ |
| 1746 | pool_put_index (lcm->mapping_pool, lcm->petr_map_index); |
| 1747 | |
| 1748 | /* Disable use-petr */ |
| 1749 | lcm->flags &= ~LISP_FLAG_USE_PETR; |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 1750 | lcm->petr_map_index = ~0; |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 1751 | } |
| 1752 | return 0; |
| 1753 | } |
| 1754 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 1755 | /* cleans locator to locator-set data and removes locators not part of |
| 1756 | * any locator-set */ |
| 1757 | static void |
| 1758 | clean_locator_to_locator_set (lisp_cp_main_t * lcm, u32 lsi) |
| 1759 | { |
Filip Tehlar | d1c5cc3 | 2016-05-30 10:39:20 +0200 | [diff] [blame] | 1760 | u32 i, j, *loc_indexp, *ls_indexp, **ls_indexes, *to_be_deleted = 0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1761 | locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, lsi); |
| 1762 | for (i = 0; i < vec_len (ls->locator_indices); i++) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 1763 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1764 | loc_indexp = vec_elt_at_index (ls->locator_indices, i); |
| 1765 | ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, |
| 1766 | loc_indexp[0]); |
| 1767 | for (j = 0; j < vec_len (ls_indexes[0]); j++) |
| 1768 | { |
| 1769 | ls_indexp = vec_elt_at_index (ls_indexes[0], j); |
| 1770 | if (ls_indexp[0] == lsi) |
| 1771 | break; |
| 1772 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 1773 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1774 | /* delete index for removed locator-set */ |
| 1775 | vec_del1 (ls_indexes[0], j); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 1776 | |
| 1777 | /* delete locator if it's part of no locator-set */ |
| 1778 | if (vec_len (ls_indexes[0]) == 0) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1779 | { |
| 1780 | pool_put_index (lcm->locator_pool, loc_indexp[0]); |
| 1781 | vec_add1 (to_be_deleted, i); |
| 1782 | } |
Filip Tehlar | d1c5cc3 | 2016-05-30 10:39:20 +0200 | [diff] [blame] | 1783 | } |
| 1784 | |
| 1785 | if (to_be_deleted) |
| 1786 | { |
| 1787 | for (i = 0; i < vec_len (to_be_deleted); i++) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1788 | { |
| 1789 | loc_indexp = vec_elt_at_index (to_be_deleted, i); |
| 1790 | vec_del1 (ls->locator_indices, loc_indexp[0]); |
| 1791 | } |
Filip Tehlar | d1c5cc3 | 2016-05-30 10:39:20 +0200 | [diff] [blame] | 1792 | vec_free (to_be_deleted); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 1793 | } |
| 1794 | } |
Filip Tehlar | d1c5cc3 | 2016-05-30 10:39:20 +0200 | [diff] [blame] | 1795 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1796 | static inline uword * |
| 1797 | get_locator_set_index (vnet_lisp_add_del_locator_set_args_t * a, uword * p) |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1798 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1799 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1800 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1801 | ASSERT (a != NULL); |
| 1802 | ASSERT (p != NULL); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1803 | |
| 1804 | /* find locator-set */ |
| 1805 | if (a->local) |
| 1806 | { |
Dave Barach | 59b2565 | 2017-09-10 15:04:27 -0400 | [diff] [blame] | 1807 | ASSERT (a->name); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1808 | p = hash_get_mem (lcm->locator_set_index_by_name, a->name); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1809 | } |
| 1810 | else |
| 1811 | { |
| 1812 | *p = a->index; |
| 1813 | } |
| 1814 | |
| 1815 | return p; |
| 1816 | } |
| 1817 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1818 | static inline int |
| 1819 | is_locator_in_locator_set (lisp_cp_main_t * lcm, locator_set_t * ls, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1820 | locator_t * loc) |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1821 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1822 | locator_t *itloc; |
| 1823 | u32 *locit; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1824 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1825 | ASSERT (ls != NULL); |
| 1826 | ASSERT (loc != NULL); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1827 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1828 | vec_foreach (locit, ls->locator_indices) |
| 1829 | { |
| 1830 | itloc = pool_elt_at_index (lcm->locator_pool, locit[0]); |
| 1831 | if ((ls->local && itloc->sw_if_index == loc->sw_if_index) || |
| 1832 | (!ls->local && !gid_address_cmp (&itloc->address, &loc->address))) |
| 1833 | { |
| 1834 | clib_warning ("Duplicate locator"); |
| 1835 | return VNET_API_ERROR_VALUE_EXIST; |
| 1836 | } |
| 1837 | } |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1838 | |
| 1839 | return 0; |
| 1840 | } |
| 1841 | |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1842 | static void |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1843 | update_adjacencies_by_map_index (lisp_cp_main_t * lcm, |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1844 | u32 mapping_index, u8 remove_only) |
| 1845 | { |
| 1846 | fwd_entry_t *fwd; |
| 1847 | mapping_t *map; |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1848 | uword *fei = 0, *rmts_idxp = 0; |
| 1849 | u32 **rmts = 0, *remote_idxp = 0, *rmts_copy = 0; |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1850 | vnet_lisp_add_del_adjacency_args_t _a, *a = &_a; |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1851 | memset (a, 0, sizeof (*a)); |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1852 | |
| 1853 | map = pool_elt_at_index (lcm->mapping_pool, mapping_index); |
| 1854 | |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1855 | if (map->local) |
| 1856 | { |
| 1857 | rmts_idxp = hash_get (lcm->lcl_to_rmt_adjs_by_lcl_idx, mapping_index); |
| 1858 | if (rmts_idxp) |
| 1859 | { |
| 1860 | rmts = |
| 1861 | pool_elt_at_index (lcm->lcl_to_rmt_adjacencies, rmts_idxp[0]); |
| 1862 | rmts_copy = vec_dup (rmts[0]); |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1863 | |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1864 | vec_foreach (remote_idxp, rmts_copy) |
| 1865 | { |
| 1866 | fei = hash_get (lcm->fwd_entry_by_mapping_index, remote_idxp[0]); |
| 1867 | if (!fei) |
| 1868 | continue; |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1869 | |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1870 | fwd = pool_elt_at_index (lcm->fwd_entry_pool, fei[0]); |
| 1871 | a->is_add = 0; |
| 1872 | gid_address_copy (&a->leid, &fwd->leid); |
| 1873 | gid_address_copy (&a->reid, &fwd->reid); |
| 1874 | vnet_lisp_add_del_adjacency (a); |
| 1875 | |
| 1876 | if (!remove_only) |
| 1877 | { |
| 1878 | a->is_add = 1; |
| 1879 | vnet_lisp_add_del_adjacency (a); |
| 1880 | } |
| 1881 | } |
| 1882 | vec_free (rmts_copy); |
| 1883 | } |
| 1884 | } |
| 1885 | else |
| 1886 | { |
| 1887 | fei = hash_get (lcm->fwd_entry_by_mapping_index, mapping_index); |
| 1888 | if (!fei) |
| 1889 | return; |
| 1890 | |
| 1891 | fwd = pool_elt_at_index (lcm->fwd_entry_pool, fei[0]); |
| 1892 | a->is_add = 0; |
| 1893 | gid_address_copy (&a->leid, &fwd->leid); |
| 1894 | gid_address_copy (&a->reid, &fwd->reid); |
| 1895 | vnet_lisp_add_del_adjacency (a); |
| 1896 | |
| 1897 | if (!remove_only) |
| 1898 | { |
| 1899 | a->is_add = 1; |
| 1900 | vnet_lisp_add_del_adjacency (a); |
| 1901 | } |
| 1902 | } |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1903 | } |
| 1904 | |
| 1905 | static void |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1906 | update_fwd_entries_by_locator_set (lisp_cp_main_t * lcm, |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1907 | u32 ls_index, u8 remove_only) |
| 1908 | { |
| 1909 | u32 i, *map_indexp; |
| 1910 | u32 **eid_indexes; |
Filip Tehlar | facee28 | 2017-04-27 14:29:27 +0200 | [diff] [blame] | 1911 | |
| 1912 | if (vec_len (lcm->locator_set_to_eids) <= ls_index) |
| 1913 | return; |
| 1914 | |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1915 | eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, ls_index); |
| 1916 | |
| 1917 | for (i = 0; i < vec_len (eid_indexes[0]); i++) |
| 1918 | { |
| 1919 | map_indexp = vec_elt_at_index (eid_indexes[0], i); |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 1920 | update_adjacencies_by_map_index (lcm, map_indexp[0], remove_only); |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 1921 | } |
| 1922 | } |
| 1923 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 1924 | static inline void |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1925 | remove_locator_from_locator_set (locator_set_t * ls, u32 * locit, |
| 1926 | u32 ls_index, u32 loc_id) |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1927 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1928 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1929 | u32 **ls_indexes = NULL; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1930 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1931 | ASSERT (ls != NULL); |
| 1932 | ASSERT (locit != NULL); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1933 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1934 | ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, locit[0]); |
| 1935 | pool_put_index (lcm->locator_pool, locit[0]); |
| 1936 | vec_del1 (ls->locator_indices, loc_id); |
| 1937 | vec_del1 (ls_indexes[0], ls_index); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1938 | } |
| 1939 | |
| 1940 | int |
| 1941 | vnet_lisp_add_del_locator (vnet_lisp_add_del_locator_set_args_t * a, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1942 | locator_set_t * ls, u32 * ls_result) |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1943 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1944 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 1945 | locator_t *loc = NULL, *itloc = NULL; |
| 1946 | uword _p = (u32) ~ 0, *p = &_p; |
| 1947 | u32 loc_index = ~0, ls_index = ~0, *locit = NULL, **ls_indexes = NULL; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1948 | u32 loc_id = ~0; |
| 1949 | int ret = 0; |
| 1950 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1951 | ASSERT (a != NULL); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1952 | |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 1953 | if (vnet_lisp_enable_disable_status () == 0) |
| 1954 | { |
| 1955 | clib_warning ("LISP is disabled!"); |
| 1956 | return VNET_API_ERROR_LISP_DISABLED; |
| 1957 | } |
| 1958 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1959 | p = get_locator_set_index (a, p); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1960 | if (!p) |
| 1961 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1962 | clib_warning ("locator-set %v doesn't exist", a->name); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1963 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 1964 | } |
| 1965 | |
| 1966 | if (ls == 0) |
| 1967 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1968 | ls = pool_elt_at_index (lcm->locator_set_pool, p[0]); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1969 | if (!ls) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1970 | { |
| 1971 | clib_warning ("locator-set %d to be overwritten doesn't exist!", |
| 1972 | p[0]); |
| 1973 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 1974 | } |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1975 | } |
| 1976 | |
| 1977 | if (a->is_add) |
| 1978 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1979 | if (ls_result) |
| 1980 | ls_result[0] = p[0]; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1981 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1982 | /* allocate locators */ |
| 1983 | vec_foreach (itloc, a->locators) |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1984 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1985 | ret = is_locator_in_locator_set (lcm, ls, itloc); |
| 1986 | if (0 != ret) |
| 1987 | { |
| 1988 | return ret; |
| 1989 | } |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1990 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1991 | pool_get (lcm->locator_pool, loc); |
| 1992 | loc[0] = itloc[0]; |
| 1993 | loc_index = loc - lcm->locator_pool; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1994 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1995 | vec_add1 (ls->locator_indices, loc_index); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 1996 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 1997 | vec_validate (lcm->locator_to_locator_sets, loc_index); |
| 1998 | ls_indexes = vec_elt_at_index (lcm->locator_to_locator_sets, |
| 1999 | loc_index); |
Filip Tehlar | c5bb0d6 | 2016-09-02 12:14:31 +0200 | [diff] [blame] | 2000 | vec_add1 (ls_indexes[0], p[0]); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 2001 | } |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2002 | } |
| 2003 | else |
| 2004 | { |
| 2005 | ls_index = p[0]; |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 2006 | u8 removed; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2007 | |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 2008 | vec_foreach (itloc, a->locators) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2009 | { |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 2010 | removed = 0; |
| 2011 | loc_id = 0; |
| 2012 | vec_foreach (locit, ls->locator_indices) |
| 2013 | { |
| 2014 | loc = pool_elt_at_index (lcm->locator_pool, locit[0]); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2015 | |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 2016 | if (loc->local && loc->sw_if_index == itloc->sw_if_index) |
| 2017 | { |
| 2018 | removed = 1; |
| 2019 | remove_locator_from_locator_set (ls, locit, ls_index, loc_id); |
| 2020 | } |
| 2021 | if (0 == loc->local && |
| 2022 | !gid_address_cmp (&loc->address, &itloc->address)) |
| 2023 | { |
| 2024 | removed = 1; |
| 2025 | remove_locator_from_locator_set (ls, locit, ls_index, loc_id); |
| 2026 | } |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2027 | |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 2028 | if (removed) |
| 2029 | { |
| 2030 | /* update fwd entries using this locator in DP */ |
Filip Tehlar | 9d286a4 | 2017-10-26 23:57:09 -0700 | [diff] [blame] | 2031 | update_fwd_entries_by_locator_set (lcm, ls_index, |
Filip Tehlar | 68d2e24 | 2017-04-21 12:05:58 +0200 | [diff] [blame] | 2032 | vec_len (ls->locator_indices) |
| 2033 | == 0); |
| 2034 | } |
| 2035 | |
| 2036 | loc_id++; |
| 2037 | } |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2038 | } |
| 2039 | } |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 2040 | |
| 2041 | return 0; |
| 2042 | } |
| 2043 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2044 | int |
| 2045 | vnet_lisp_add_del_locator_set (vnet_lisp_add_del_locator_set_args_t * a, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2046 | u32 * ls_result) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2047 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2048 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2049 | locator_set_t *ls; |
| 2050 | uword _p = (u32) ~ 0, *p = &_p; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 2051 | u32 ls_index; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2052 | u32 **eid_indexes; |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 2053 | int ret = 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2054 | |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 2055 | if (vnet_lisp_enable_disable_status () == 0) |
| 2056 | { |
| 2057 | clib_warning ("LISP is disabled!"); |
| 2058 | return VNET_API_ERROR_LISP_DISABLED; |
| 2059 | } |
| 2060 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2061 | if (a->is_add) |
| 2062 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2063 | p = get_locator_set_index (a, p); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2064 | |
| 2065 | /* overwrite */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2066 | if (p && p[0] != (u32) ~ 0) |
| 2067 | { |
| 2068 | ls = pool_elt_at_index (lcm->locator_set_pool, p[0]); |
| 2069 | if (!ls) |
| 2070 | { |
| 2071 | clib_warning ("locator-set %d to be overwritten doesn't exist!", |
| 2072 | p[0]); |
| 2073 | return -1; |
| 2074 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2075 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2076 | /* clean locator to locator-set vectors and remove locators if |
| 2077 | * they're not part of another locator-set */ |
| 2078 | clean_locator_to_locator_set (lcm, p[0]); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2079 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2080 | /* remove locator indices from locator set */ |
| 2081 | vec_free (ls->locator_indices); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2082 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2083 | ls_index = p[0]; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2084 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2085 | if (ls_result) |
| 2086 | ls_result[0] = p[0]; |
| 2087 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2088 | /* new locator-set */ |
| 2089 | else |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2090 | { |
| 2091 | pool_get (lcm->locator_set_pool, ls); |
| 2092 | memset (ls, 0, sizeof (*ls)); |
| 2093 | ls_index = ls - lcm->locator_set_pool; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2094 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2095 | if (a->local) |
| 2096 | { |
| 2097 | ls->name = vec_dup (a->name); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2098 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2099 | if (!lcm->locator_set_index_by_name) |
| 2100 | lcm->locator_set_index_by_name = hash_create_vec ( |
| 2101 | /* size */ |
| 2102 | 0, |
| 2103 | sizeof |
| 2104 | (ls->name |
| 2105 | [0]), |
| 2106 | sizeof |
| 2107 | (uword)); |
| 2108 | hash_set_mem (lcm->locator_set_index_by_name, ls->name, |
| 2109 | ls_index); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2110 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2111 | /* mark as local locator-set */ |
| 2112 | vec_add1 (lcm->local_locator_set_indexes, ls_index); |
| 2113 | } |
| 2114 | ls->local = a->local; |
| 2115 | if (ls_result) |
| 2116 | ls_result[0] = ls_index; |
| 2117 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2118 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2119 | ret = vnet_lisp_add_del_locator (a, ls, NULL); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 2120 | if (0 != ret) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2121 | { |
| 2122 | return ret; |
| 2123 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2124 | } |
| 2125 | else |
| 2126 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2127 | p = get_locator_set_index (a, p); |
Andrej Kozemcak | 6a2e439 | 2016-05-26 12:20:08 +0200 | [diff] [blame] | 2128 | if (!p) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2129 | { |
| 2130 | clib_warning ("locator-set %v doesn't exists", a->name); |
| 2131 | return -1; |
| 2132 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2133 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2134 | ls = pool_elt_at_index (lcm->locator_set_pool, p[0]); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2135 | if (!ls) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2136 | { |
| 2137 | clib_warning ("locator-set with index %d doesn't exists", p[0]); |
| 2138 | return -1; |
| 2139 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2140 | |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2141 | if (lcm->mreq_itr_rlocs == p[0]) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2142 | { |
| 2143 | clib_warning ("Can't delete the locator-set used to constrain " |
| 2144 | "the itr-rlocs in map-requests!"); |
| 2145 | return -1; |
| 2146 | } |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2147 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2148 | if (vec_len (lcm->locator_set_to_eids) != 0) |
| 2149 | { |
| 2150 | eid_indexes = vec_elt_at_index (lcm->locator_set_to_eids, p[0]); |
| 2151 | if (vec_len (eid_indexes[0]) != 0) |
| 2152 | { |
| 2153 | clib_warning |
| 2154 | ("Can't delete a locator that supports a mapping!"); |
| 2155 | return -1; |
| 2156 | } |
| 2157 | } |
Andrej Kozemcak | b92feb6 | 2016-03-31 13:51:42 +0200 | [diff] [blame] | 2158 | |
| 2159 | /* clean locator to locator-sets data */ |
| 2160 | clean_locator_to_locator_set (lcm, p[0]); |
| 2161 | |
| 2162 | if (ls->local) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2163 | { |
| 2164 | u32 it, lsi; |
Andrej Kozemcak | b92feb6 | 2016-03-31 13:51:42 +0200 | [diff] [blame] | 2165 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2166 | vec_foreach_index (it, lcm->local_locator_set_indexes) |
| 2167 | { |
| 2168 | lsi = vec_elt (lcm->local_locator_set_indexes, it); |
| 2169 | if (lsi == p[0]) |
| 2170 | { |
| 2171 | vec_del1 (lcm->local_locator_set_indexes, it); |
| 2172 | break; |
| 2173 | } |
| 2174 | } |
| 2175 | hash_unset_mem (lcm->locator_set_index_by_name, ls->name); |
| 2176 | } |
| 2177 | vec_free (ls->name); |
| 2178 | vec_free (ls->locator_indices); |
| 2179 | pool_put (lcm->locator_set_pool, ls); |
Andrej Kozemcak | b92feb6 | 2016-03-31 13:51:42 +0200 | [diff] [blame] | 2180 | } |
| 2181 | return 0; |
| 2182 | } |
| 2183 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2184 | int |
| 2185 | vnet_lisp_rloc_probe_enable_disable (u8 is_enable) |
| 2186 | { |
| 2187 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2188 | |
| 2189 | lcm->rloc_probing = is_enable; |
| 2190 | return 0; |
| 2191 | } |
| 2192 | |
| 2193 | int |
| 2194 | vnet_lisp_map_register_enable_disable (u8 is_enable) |
| 2195 | { |
| 2196 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2197 | |
| 2198 | lcm->map_registering = is_enable; |
| 2199 | return 0; |
| 2200 | } |
| 2201 | |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 2202 | static void |
| 2203 | lisp_cp_register_dst_port (vlib_main_t * vm) |
| 2204 | { |
| 2205 | udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp, |
| 2206 | lisp_cp_input_node.index, 1 /* is_ip4 */ ); |
| 2207 | udp_register_dst_port (vm, UDP_DST_PORT_lisp_cp6, |
| 2208 | lisp_cp_input_node.index, 0 /* is_ip4 */ ); |
| 2209 | } |
| 2210 | |
| 2211 | static void |
| 2212 | lisp_cp_unregister_dst_port (vlib_main_t * vm) |
| 2213 | { |
| 2214 | udp_unregister_dst_port (vm, UDP_DST_PORT_lisp_cp, 0 /* is_ip4 */ ); |
| 2215 | udp_unregister_dst_port (vm, UDP_DST_PORT_lisp_cp6, 1 /* is_ip4 */ ); |
| 2216 | } |
| 2217 | |
| 2218 | /** |
| 2219 | * lisp_cp_enable_l2_l3_ifaces |
| 2220 | * |
| 2221 | * Enable all l2 and l3 ifaces |
| 2222 | */ |
| 2223 | static void |
| 2224 | lisp_cp_enable_l2_l3_ifaces (lisp_cp_main_t * lcm, u8 with_default_route) |
| 2225 | { |
| 2226 | u32 vni, dp_table; |
| 2227 | |
| 2228 | /* *INDENT-OFF* */ |
| 2229 | hash_foreach(vni, dp_table, lcm->table_id_by_vni, ({ |
| 2230 | dp_add_del_iface(lcm, vni, /* is_l2 */ 0, /* is_add */1, |
| 2231 | with_default_route); |
| 2232 | })); |
| 2233 | hash_foreach(vni, dp_table, lcm->bd_id_by_vni, ({ |
| 2234 | dp_add_del_iface(lcm, vni, /* is_l2 */ 1, 1, |
| 2235 | with_default_route); |
| 2236 | })); |
| 2237 | /* *INDENT-ON* */ |
| 2238 | } |
| 2239 | |
| 2240 | static void |
| 2241 | lisp_cp_disable_l2_l3_ifaces (lisp_cp_main_t * lcm) |
| 2242 | { |
| 2243 | u32 **rmts; |
| 2244 | |
| 2245 | /* clear interface table */ |
| 2246 | hash_free (lcm->fwd_entry_by_mapping_index); |
| 2247 | pool_free (lcm->fwd_entry_pool); |
| 2248 | /* Clear state tracking rmt-lcl fwd entries */ |
| 2249 | /* *INDENT-OFF* */ |
| 2250 | pool_foreach(rmts, lcm->lcl_to_rmt_adjacencies, |
| 2251 | { |
| 2252 | vec_free(rmts[0]); |
| 2253 | }); |
| 2254 | /* *INDENT-ON* */ |
| 2255 | hash_free (lcm->lcl_to_rmt_adjs_by_lcl_idx); |
| 2256 | pool_free (lcm->lcl_to_rmt_adjacencies); |
| 2257 | } |
| 2258 | |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2259 | clib_error_t * |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 2260 | vnet_lisp_enable_disable (u8 is_enable) |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2261 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2262 | clib_error_t *error = 0; |
| 2263 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2264 | vnet_lisp_gpe_enable_disable_args_t _a, *a = &_a; |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2265 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 2266 | a->is_en = is_enable; |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2267 | error = vnet_lisp_gpe_enable_disable (a); |
| 2268 | if (error) |
| 2269 | { |
| 2270 | return clib_error_return (0, "failed to %s data-plane!", |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2271 | a->is_en ? "enable" : "disable"); |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2272 | } |
| 2273 | |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 2274 | /* decide what to do based on mode */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2275 | |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 2276 | if (lcm->flags & LISP_FLAG_XTR_MODE) |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2277 | { |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 2278 | if (is_enable) |
| 2279 | { |
| 2280 | lisp_cp_register_dst_port (lcm->vlib_main); |
| 2281 | lisp_cp_enable_l2_l3_ifaces (lcm, 1 /* with_default_route */ ); |
| 2282 | } |
| 2283 | else |
| 2284 | { |
| 2285 | lisp_cp_unregister_dst_port (lcm->vlib_main); |
| 2286 | lisp_cp_disable_l2_l3_ifaces (lcm); |
| 2287 | } |
| 2288 | } |
| 2289 | |
| 2290 | if (lcm->flags & LISP_FLAG_PETR_MODE) |
| 2291 | { |
| 2292 | /* if in xTR mode, the LISP ports were already (un)registered above */ |
| 2293 | if (!(lcm->flags & LISP_FLAG_XTR_MODE)) |
| 2294 | { |
| 2295 | if (is_enable) |
| 2296 | lisp_cp_register_dst_port (lcm->vlib_main); |
| 2297 | else |
| 2298 | lisp_cp_unregister_dst_port (lcm->vlib_main); |
| 2299 | } |
| 2300 | } |
| 2301 | |
| 2302 | if (lcm->flags & LISP_FLAG_PITR_MODE) |
| 2303 | { |
| 2304 | if (is_enable) |
| 2305 | { |
| 2306 | /* install interfaces, but no default routes */ |
| 2307 | lisp_cp_enable_l2_l3_ifaces (lcm, 0 /* with_default_route */ ); |
| 2308 | } |
| 2309 | else |
| 2310 | { |
| 2311 | lisp_cp_disable_l2_l3_ifaces (lcm); |
| 2312 | } |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2313 | } |
| 2314 | |
| 2315 | /* update global flag */ |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 2316 | lcm->is_enabled = is_enable; |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2317 | |
| 2318 | return 0; |
| 2319 | } |
| 2320 | |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2321 | u8 |
| 2322 | vnet_lisp_enable_disable_status (void) |
| 2323 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2324 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | 46d4e36 | 2016-05-09 09:39:26 +0200 | [diff] [blame] | 2325 | return lcm->is_enabled; |
| 2326 | } |
| 2327 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2328 | int |
| 2329 | vnet_lisp_add_del_map_resolver (vnet_lisp_add_del_map_resolver_args_t * a) |
| 2330 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2331 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2332 | u32 i; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2333 | lisp_msmr_t _mr, *mr = &_mr; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2334 | |
Andrej Kozemcak | 8ebb2a1 | 2016-06-07 12:25:20 +0200 | [diff] [blame] | 2335 | if (vnet_lisp_enable_disable_status () == 0) |
| 2336 | { |
| 2337 | clib_warning ("LISP is disabled!"); |
| 2338 | return VNET_API_ERROR_LISP_DISABLED; |
| 2339 | } |
| 2340 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2341 | if (a->is_add) |
| 2342 | { |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2343 | |
| 2344 | if (get_map_resolver (&a->address)) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2345 | { |
| 2346 | clib_warning ("map-resolver %U already exists!", format_ip_address, |
| 2347 | &a->address); |
| 2348 | return -1; |
| 2349 | } |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2350 | |
| 2351 | memset (mr, 0, sizeof (*mr)); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2352 | ip_address_copy (&mr->address, &a->address); |
| 2353 | vec_add1 (lcm->map_resolvers, *mr); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2354 | |
| 2355 | if (vec_len (lcm->map_resolvers) == 1) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2356 | lcm->do_map_resolver_election = 1; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2357 | } |
| 2358 | else |
| 2359 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2360 | for (i = 0; i < vec_len (lcm->map_resolvers); i++) |
| 2361 | { |
| 2362 | mr = vec_elt_at_index (lcm->map_resolvers, i); |
| 2363 | if (!ip_address_cmp (&mr->address, &a->address)) |
| 2364 | { |
| 2365 | if (!ip_address_cmp (&mr->address, &lcm->active_map_resolver)) |
| 2366 | lcm->do_map_resolver_election = 1; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2367 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2368 | vec_del1 (lcm->map_resolvers, i); |
| 2369 | break; |
| 2370 | } |
| 2371 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2372 | } |
| 2373 | return 0; |
| 2374 | } |
| 2375 | |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2376 | int |
Filip Tehlar | 1e553a0 | 2017-08-02 12:45:07 +0200 | [diff] [blame] | 2377 | vnet_lisp_map_register_set_ttl (u32 ttl) |
| 2378 | { |
| 2379 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2380 | lcm->map_register_ttl = ttl; |
| 2381 | return 0; |
| 2382 | } |
| 2383 | |
| 2384 | u32 |
| 2385 | vnet_lisp_map_register_get_ttl (void) |
| 2386 | { |
| 2387 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2388 | return lcm->map_register_ttl; |
| 2389 | } |
| 2390 | |
| 2391 | int |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2392 | vnet_lisp_add_del_mreq_itr_rlocs (vnet_lisp_add_del_mreq_itr_rloc_args_t * a) |
| 2393 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2394 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 2395 | uword *p = 0; |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2396 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 2397 | if (vnet_lisp_enable_disable_status () == 0) |
| 2398 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2399 | clib_warning ("LISP is disabled!"); |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 2400 | return VNET_API_ERROR_LISP_DISABLED; |
| 2401 | } |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2402 | |
| 2403 | if (a->is_add) |
| 2404 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2405 | p = hash_get_mem (lcm->locator_set_index_by_name, a->locator_set_name); |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2406 | if (!p) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2407 | { |
| 2408 | clib_warning ("locator-set %v doesn't exist", a->locator_set_name); |
| 2409 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 2410 | } |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 2411 | |
| 2412 | lcm->mreq_itr_rlocs = p[0]; |
| 2413 | } |
| 2414 | else |
| 2415 | { |
| 2416 | lcm->mreq_itr_rlocs = ~0; |
| 2417 | } |
| 2418 | |
| 2419 | return 0; |
| 2420 | } |
| 2421 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2422 | /* Statistics (not really errors) */ |
| 2423 | #define foreach_lisp_cp_lookup_error \ |
| 2424 | _(DROP, "drop") \ |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 2425 | _(MAP_REQUESTS_SENT, "map-request sent") \ |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 2426 | _(ARP_REPLY_TX, "ARP replies sent") \ |
| 2427 | _(NDP_NEIGHBOR_ADVERTISEMENT_TX, \ |
| 2428 | "neighbor advertisement sent") |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2429 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2430 | static char *lisp_cp_lookup_error_strings[] = { |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2431 | #define _(sym,string) string, |
| 2432 | foreach_lisp_cp_lookup_error |
| 2433 | #undef _ |
| 2434 | }; |
| 2435 | |
| 2436 | typedef enum |
| 2437 | { |
| 2438 | #define _(sym,str) LISP_CP_LOOKUP_ERROR_##sym, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2439 | foreach_lisp_cp_lookup_error |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2440 | #undef _ |
| 2441 | LISP_CP_LOOKUP_N_ERROR, |
| 2442 | } lisp_cp_lookup_error_t; |
| 2443 | |
| 2444 | typedef enum |
| 2445 | { |
| 2446 | LISP_CP_LOOKUP_NEXT_DROP, |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 2447 | LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX, |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2448 | LISP_CP_LOOKUP_N_NEXT, |
| 2449 | } lisp_cp_lookup_next_t; |
| 2450 | |
| 2451 | typedef struct |
| 2452 | { |
| 2453 | gid_address_t dst_eid; |
Andrej Kozemcak | 94e3476 | 2016-05-25 12:43:21 +0200 | [diff] [blame] | 2454 | ip_address_t map_resolver_ip; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2455 | } lisp_cp_lookup_trace_t; |
| 2456 | |
| 2457 | u8 * |
| 2458 | format_lisp_cp_lookup_trace (u8 * s, va_list * args) |
| 2459 | { |
| 2460 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 2461 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2462 | lisp_cp_lookup_trace_t *t = va_arg (*args, lisp_cp_lookup_trace_t *); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2463 | |
| 2464 | s = format (s, "LISP-CP-LOOKUP: map-resolver: %U destination eid %U", |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2465 | format_ip_address, &t->map_resolver_ip, format_gid_address, |
| 2466 | &t->dst_eid); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2467 | return s; |
| 2468 | } |
| 2469 | |
Florin Coras | 1c49484 | 2016-06-16 21:08:56 +0200 | [diff] [blame] | 2470 | int |
| 2471 | get_mr_and_local_iface_ip (lisp_cp_main_t * lcm, ip_address_t * mr_ip, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2472 | ip_address_t * sloc) |
Florin Coras | c2c9008 | 2016-06-13 18:37:15 +0200 | [diff] [blame] | 2473 | { |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2474 | lisp_msmr_t *mrit; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2475 | ip_address_t *a; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2476 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2477 | if (vec_len (lcm->map_resolvers) == 0) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2478 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2479 | clib_warning ("No map-resolver configured"); |
Florin Coras | 1c49484 | 2016-06-16 21:08:56 +0200 | [diff] [blame] | 2480 | return 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2481 | } |
| 2482 | |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 2483 | /* find the first mr ip we have a route to and the ip of the |
| 2484 | * iface that has a route to it */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2485 | vec_foreach (mrit, lcm->map_resolvers) |
| 2486 | { |
| 2487 | a = &mrit->address; |
| 2488 | if (0 != ip_fib_get_first_egress_ip_for_dst (lcm, a, sloc)) |
| 2489 | { |
| 2490 | ip_address_copy (mr_ip, a); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2491 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2492 | /* also update globals */ |
| 2493 | return 1; |
| 2494 | } |
| 2495 | } |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 2496 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2497 | clib_warning ("Can't find map-resolver and local interface ip!"); |
Florin Coras | 1c49484 | 2016-06-16 21:08:56 +0200 | [diff] [blame] | 2498 | return 0; |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 2499 | } |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2500 | |
Filip Tehlar | beceab9 | 2016-04-20 17:21:55 +0200 | [diff] [blame] | 2501 | static gid_address_t * |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2502 | build_itr_rloc_list (lisp_cp_main_t * lcm, locator_set_t * loc_set) |
| 2503 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2504 | void *addr; |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2505 | u32 i; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2506 | locator_t *loc; |
| 2507 | u32 *loc_indexp; |
| 2508 | ip_interface_address_t *ia = 0; |
| 2509 | gid_address_t gid_data, *gid = &gid_data; |
| 2510 | gid_address_t *rlocs = 0; |
| 2511 | ip_prefix_t *ippref = &gid_address_ippref (gid); |
| 2512 | ip_address_t *rloc = &ip_prefix_addr (ippref); |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2513 | |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 2514 | memset (gid, 0, sizeof (gid[0])); |
Filip Tehlar | beceab9 | 2016-04-20 17:21:55 +0200 | [diff] [blame] | 2515 | gid_address_type (gid) = GID_ADDR_IP_PREFIX; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2516 | for (i = 0; i < vec_len (loc_set->locator_indices); i++) |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2517 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2518 | loc_indexp = vec_elt_at_index (loc_set->locator_indices, i); |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2519 | loc = pool_elt_at_index (lcm->locator_pool, loc_indexp[0]); |
| 2520 | |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2521 | /* Add ipv4 locators first TODO sort them */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2522 | |
| 2523 | /* *INDENT-OFF* */ |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2524 | foreach_ip_interface_address (&lcm->im4->lookup_main, ia, |
| 2525 | loc->sw_if_index, 1 /* unnumbered */, |
| 2526 | ({ |
Florin Coras | 1c49484 | 2016-06-16 21:08:56 +0200 | [diff] [blame] | 2527 | addr = ip_interface_address_get_address (&lcm->im4->lookup_main, ia); |
| 2528 | ip_address_set (rloc, addr, IP4); |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 2529 | ip_prefix_len (ippref) = 32; |
Andrej Kozemcak | 438109d | 2016-07-22 12:54:12 +0200 | [diff] [blame] | 2530 | ip_prefix_normalize (ippref); |
Filip Tehlar | beceab9 | 2016-04-20 17:21:55 +0200 | [diff] [blame] | 2531 | vec_add1 (rlocs, gid[0]); |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2532 | })); |
| 2533 | |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2534 | /* Add ipv6 locators */ |
| 2535 | foreach_ip_interface_address (&lcm->im6->lookup_main, ia, |
| 2536 | loc->sw_if_index, 1 /* unnumbered */, |
| 2537 | ({ |
Florin Coras | 1c49484 | 2016-06-16 21:08:56 +0200 | [diff] [blame] | 2538 | addr = ip_interface_address_get_address (&lcm->im6->lookup_main, ia); |
| 2539 | ip_address_set (rloc, addr, IP6); |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 2540 | ip_prefix_len (ippref) = 128; |
Andrej Kozemcak | 438109d | 2016-07-22 12:54:12 +0200 | [diff] [blame] | 2541 | ip_prefix_normalize (ippref); |
Filip Tehlar | beceab9 | 2016-04-20 17:21:55 +0200 | [diff] [blame] | 2542 | vec_add1 (rlocs, gid[0]); |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2543 | })); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2544 | /* *INDENT-ON* */ |
| 2545 | |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2546 | } |
| 2547 | return rlocs; |
| 2548 | } |
| 2549 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2550 | static vlib_buffer_t * |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2551 | build_map_request (lisp_cp_main_t * lcm, gid_address_t * deid, |
| 2552 | ip_address_t * sloc, ip_address_t * rloc, |
| 2553 | gid_address_t * itr_rlocs, u64 * nonce_res, u32 * bi_res) |
| 2554 | { |
| 2555 | vlib_buffer_t *b; |
| 2556 | u32 bi; |
| 2557 | vlib_main_t *vm = lcm->vlib_main; |
| 2558 | |
| 2559 | if (vlib_buffer_alloc (vm, &bi, 1) != 1) |
| 2560 | { |
| 2561 | clib_warning ("Can't allocate buffer for Map-Request!"); |
| 2562 | return 0; |
| 2563 | } |
| 2564 | |
| 2565 | b = vlib_get_buffer (vm, bi); |
| 2566 | |
| 2567 | /* leave some space for the encap headers */ |
| 2568 | vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); |
| 2569 | |
| 2570 | /* put lisp msg */ |
| 2571 | lisp_msg_put_mreq (lcm, b, NULL, deid, itr_rlocs, 0 /* smr invoked */ , |
| 2572 | 1 /* rloc probe */ , nonce_res); |
| 2573 | |
| 2574 | /* push outer ip header */ |
| 2575 | pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc, |
Florin Coras | fdbc382 | 2017-07-27 00:34:12 -0700 | [diff] [blame] | 2576 | rloc, 1); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2577 | |
| 2578 | bi_res[0] = bi; |
| 2579 | |
| 2580 | return b; |
| 2581 | } |
| 2582 | |
| 2583 | static vlib_buffer_t * |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2584 | build_encapsulated_map_request (lisp_cp_main_t * lcm, |
| 2585 | gid_address_t * seid, gid_address_t * deid, |
| 2586 | locator_set_t * loc_set, ip_address_t * mr_ip, |
| 2587 | ip_address_t * sloc, u8 is_smr_invoked, |
| 2588 | u64 * nonce_res, u32 * bi_res) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2589 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2590 | vlib_buffer_t *b; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2591 | u32 bi; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2592 | gid_address_t *rlocs = 0; |
| 2593 | vlib_main_t *vm = lcm->vlib_main; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2594 | |
| 2595 | if (vlib_buffer_alloc (vm, &bi, 1) != 1) |
| 2596 | { |
| 2597 | clib_warning ("Can't allocate buffer for Map-Request!"); |
| 2598 | return 0; |
| 2599 | } |
| 2600 | |
| 2601 | b = vlib_get_buffer (vm, bi); |
Florin Coras | fdbc382 | 2017-07-27 00:34:12 -0700 | [diff] [blame] | 2602 | b->flags = 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2603 | |
| 2604 | /* leave some space for the encap headers */ |
| 2605 | vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); |
| 2606 | |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2607 | /* get rlocs */ |
| 2608 | rlocs = build_itr_rloc_list (lcm, loc_set); |
| 2609 | |
Filip Tehlar | d5fcc46 | 2016-10-17 16:20:18 +0200 | [diff] [blame] | 2610 | if (MR_MODE_SRC_DST == lcm->map_request_mode |
| 2611 | && GID_ADDR_SRC_DST != gid_address_type (deid)) |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 2612 | { |
| 2613 | gid_address_t sd; |
| 2614 | memset (&sd, 0, sizeof (sd)); |
| 2615 | build_src_dst (&sd, seid, deid); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2616 | lisp_msg_put_mreq (lcm, b, seid, &sd, rlocs, is_smr_invoked, |
| 2617 | 0 /* rloc probe */ , nonce_res); |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 2618 | } |
| 2619 | else |
| 2620 | { |
| 2621 | /* put lisp msg */ |
| 2622 | lisp_msg_put_mreq (lcm, b, seid, deid, rlocs, is_smr_invoked, |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2623 | 0 /* rloc probe */ , nonce_res); |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 2624 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2625 | |
| 2626 | /* push ecm: udp-ip-lisp */ |
| 2627 | lisp_msg_push_ecm (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, seid, deid); |
| 2628 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2629 | /* push outer ip header */ |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 2630 | pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc, |
Florin Coras | fdbc382 | 2017-07-27 00:34:12 -0700 | [diff] [blame] | 2631 | mr_ip, 1); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2632 | |
| 2633 | bi_res[0] = bi; |
Filip Tehlar | 254b036 | 2016-04-07 10:04:34 +0200 | [diff] [blame] | 2634 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 2635 | vec_free (rlocs); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2636 | return b; |
| 2637 | } |
| 2638 | |
| 2639 | static void |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2640 | reset_pending_mr_counters (pending_map_request_t * r) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 2641 | { |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2642 | r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME; |
| 2643 | r->retries_num = 0; |
| 2644 | } |
| 2645 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2646 | #define foreach_msmr \ |
| 2647 | _(server) \ |
| 2648 | _(resolver) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2649 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2650 | #define _(name) \ |
| 2651 | static int \ |
| 2652 | elect_map_ ## name (lisp_cp_main_t * lcm) \ |
| 2653 | { \ |
| 2654 | lisp_msmr_t *mr; \ |
| 2655 | vec_foreach (mr, lcm->map_ ## name ## s) \ |
| 2656 | { \ |
| 2657 | if (!mr->is_down) \ |
| 2658 | { \ |
| 2659 | ip_address_copy (&lcm->active_map_ ##name, &mr->address); \ |
| 2660 | lcm->do_map_ ## name ## _election = 0; \ |
| 2661 | return 1; \ |
| 2662 | } \ |
| 2663 | } \ |
| 2664 | return 0; \ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 2665 | } |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2666 | foreach_msmr |
| 2667 | #undef _ |
| 2668 | static void |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2669 | free_map_register_records (mapping_t * maps) |
| 2670 | { |
| 2671 | mapping_t *map; |
| 2672 | vec_foreach (map, maps) vec_free (map->locators); |
| 2673 | |
| 2674 | vec_free (maps); |
| 2675 | } |
| 2676 | |
| 2677 | static void |
| 2678 | add_locators (lisp_cp_main_t * lcm, mapping_t * m, u32 locator_set_index, |
| 2679 | ip_address_t * probed_loc) |
| 2680 | { |
| 2681 | u32 *li; |
| 2682 | locator_t *loc, new; |
| 2683 | ip_interface_address_t *ia = 0; |
| 2684 | void *addr; |
| 2685 | ip_address_t *new_ip = &gid_address_ip (&new.address); |
| 2686 | |
| 2687 | m->locators = 0; |
| 2688 | locator_set_t *ls = pool_elt_at_index (lcm->locator_set_pool, |
| 2689 | locator_set_index); |
| 2690 | vec_foreach (li, ls->locator_indices) |
| 2691 | { |
| 2692 | loc = pool_elt_at_index (lcm->locator_pool, li[0]); |
| 2693 | new = loc[0]; |
| 2694 | if (loc->local) |
| 2695 | { |
| 2696 | /* *INDENT-OFF* */ |
| 2697 | foreach_ip_interface_address (&lcm->im4->lookup_main, ia, |
| 2698 | loc->sw_if_index, 1 /* unnumbered */, |
| 2699 | ({ |
| 2700 | addr = ip_interface_address_get_address (&lcm->im4->lookup_main, |
| 2701 | ia); |
| 2702 | ip_address_set (new_ip, addr, IP4); |
| 2703 | })); |
| 2704 | |
| 2705 | /* Add ipv6 locators */ |
| 2706 | foreach_ip_interface_address (&lcm->im6->lookup_main, ia, |
| 2707 | loc->sw_if_index, 1 /* unnumbered */, |
| 2708 | ({ |
| 2709 | addr = ip_interface_address_get_address (&lcm->im6->lookup_main, |
| 2710 | ia); |
| 2711 | ip_address_set (new_ip, addr, IP6); |
| 2712 | })); |
| 2713 | /* *INDENT-ON* */ |
| 2714 | |
| 2715 | if (probed_loc && ip_address_cmp (probed_loc, new_ip) == 0) |
| 2716 | new.probed = 1; |
| 2717 | } |
| 2718 | vec_add1 (m->locators, new); |
| 2719 | } |
| 2720 | } |
| 2721 | |
| 2722 | static mapping_t * |
| 2723 | build_map_register_record_list (lisp_cp_main_t * lcm) |
| 2724 | { |
| 2725 | mapping_t *recs = 0, rec, *m; |
| 2726 | |
| 2727 | /* *INDENT-OFF* */ |
| 2728 | pool_foreach(m, lcm->mapping_pool, |
| 2729 | { |
| 2730 | /* for now build only local mappings */ |
| 2731 | if (!m->local) |
| 2732 | continue; |
| 2733 | |
| 2734 | rec = m[0]; |
| 2735 | add_locators (lcm, &rec, m->locator_set_index, NULL); |
| 2736 | vec_add1 (recs, rec); |
| 2737 | }); |
| 2738 | /* *INDENT-ON* */ |
| 2739 | |
| 2740 | return recs; |
| 2741 | } |
| 2742 | |
| 2743 | static int |
| 2744 | update_map_register_auth_data (map_register_hdr_t * map_reg_hdr, |
| 2745 | lisp_key_type_t key_id, u8 * key, |
| 2746 | u16 auth_data_len, u32 msg_len) |
| 2747 | { |
| 2748 | MREG_KEY_ID (map_reg_hdr) = clib_host_to_net_u16 (key_id); |
| 2749 | MREG_AUTH_DATA_LEN (map_reg_hdr) = clib_host_to_net_u16 (auth_data_len); |
| 2750 | |
| 2751 | unsigned char *result = HMAC (get_encrypt_fcn (key_id), key, vec_len (key), |
| 2752 | (unsigned char *) map_reg_hdr, msg_len, NULL, |
| 2753 | NULL); |
| 2754 | clib_memcpy (MREG_DATA (map_reg_hdr), result, auth_data_len); |
| 2755 | |
| 2756 | return 0; |
| 2757 | } |
| 2758 | |
| 2759 | static vlib_buffer_t * |
| 2760 | build_map_register (lisp_cp_main_t * lcm, ip_address_t * sloc, |
| 2761 | ip_address_t * ms_ip, u64 * nonce_res, u8 want_map_notif, |
| 2762 | mapping_t * records, lisp_key_type_t key_id, u8 * key, |
| 2763 | u32 * bi_res) |
| 2764 | { |
| 2765 | void *map_reg_hdr; |
| 2766 | vlib_buffer_t *b; |
| 2767 | u32 bi, auth_data_len = 0, msg_len = 0; |
| 2768 | vlib_main_t *vm = lcm->vlib_main; |
| 2769 | |
| 2770 | if (vlib_buffer_alloc (vm, &bi, 1) != 1) |
| 2771 | { |
| 2772 | clib_warning ("Can't allocate buffer for Map-Register!"); |
| 2773 | return 0; |
| 2774 | } |
| 2775 | |
| 2776 | b = vlib_get_buffer (vm, bi); |
| 2777 | |
| 2778 | /* leave some space for the encap headers */ |
| 2779 | vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); |
| 2780 | |
| 2781 | auth_data_len = auth_data_len_by_key_id (key_id); |
| 2782 | map_reg_hdr = lisp_msg_put_map_register (b, records, want_map_notif, |
| 2783 | auth_data_len, nonce_res, |
| 2784 | &msg_len); |
| 2785 | |
| 2786 | update_map_register_auth_data (map_reg_hdr, key_id, key, auth_data_len, |
| 2787 | msg_len); |
| 2788 | |
| 2789 | /* push outer ip header */ |
| 2790 | pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, LISP_CONTROL_PORT, sloc, |
Florin Coras | fdbc382 | 2017-07-27 00:34:12 -0700 | [diff] [blame] | 2791 | ms_ip, 1); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2792 | |
| 2793 | bi_res[0] = bi; |
| 2794 | return b; |
| 2795 | } |
| 2796 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2797 | #define _(name) \ |
| 2798 | static int \ |
| 2799 | get_egress_map_ ##name## _ip (lisp_cp_main_t * lcm, ip_address_t * ip) \ |
| 2800 | { \ |
| 2801 | lisp_msmr_t *mr; \ |
| 2802 | while (lcm->do_map_ ## name ## _election \ |
| 2803 | | (0 == ip_fib_get_first_egress_ip_for_dst \ |
| 2804 | (lcm, &lcm->active_map_ ##name, ip))) \ |
| 2805 | { \ |
| 2806 | if (0 == elect_map_ ## name (lcm)) \ |
| 2807 | /* all map resolvers/servers are down */ \ |
| 2808 | { \ |
| 2809 | /* restart MR/MS checking by marking all of them up */ \ |
| 2810 | vec_foreach (mr, lcm->map_ ## name ## s) mr->is_down = 0; \ |
| 2811 | return -1; \ |
| 2812 | } \ |
| 2813 | } \ |
| 2814 | return 0; \ |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2815 | } |
| 2816 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2817 | foreach_msmr |
| 2818 | #undef _ |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2819 | /* CP output statistics */ |
| 2820 | #define foreach_lisp_cp_output_error \ |
| 2821 | _(MAP_REGISTERS_SENT, "map-registers sent") \ |
Filip Tehlar | 5908e18 | 2017-10-16 06:51:11 -0700 | [diff] [blame] | 2822 | _(MAP_REQUESTS_SENT, "map-requests sent") \ |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2823 | _(RLOC_PROBES_SENT, "rloc-probes sent") |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2824 | static char *lisp_cp_output_error_strings[] = { |
| 2825 | #define _(sym,string) string, |
| 2826 | foreach_lisp_cp_output_error |
| 2827 | #undef _ |
| 2828 | }; |
| 2829 | |
| 2830 | typedef enum |
| 2831 | { |
| 2832 | #define _(sym,str) LISP_CP_OUTPUT_ERROR_##sym, |
| 2833 | foreach_lisp_cp_output_error |
| 2834 | #undef _ |
| 2835 | LISP_CP_OUTPUT_N_ERROR, |
| 2836 | } lisp_cp_output_error_t; |
| 2837 | |
| 2838 | static uword |
| 2839 | lisp_cp_output (vlib_main_t * vm, vlib_node_runtime_t * node, |
| 2840 | vlib_frame_t * from_frame) |
| 2841 | { |
| 2842 | return 0; |
| 2843 | } |
| 2844 | |
| 2845 | /* dummy node used only for statistics */ |
| 2846 | /* *INDENT-OFF* */ |
| 2847 | VLIB_REGISTER_NODE (lisp_cp_output_node) = { |
| 2848 | .function = lisp_cp_output, |
| 2849 | .name = "lisp-cp-output", |
| 2850 | .vector_size = sizeof (u32), |
| 2851 | .format_trace = format_lisp_cp_input_trace, |
| 2852 | .type = VLIB_NODE_TYPE_INTERNAL, |
| 2853 | |
| 2854 | .n_errors = LISP_CP_OUTPUT_N_ERROR, |
| 2855 | .error_strings = lisp_cp_output_error_strings, |
| 2856 | |
| 2857 | .n_next_nodes = LISP_CP_INPUT_N_NEXT, |
| 2858 | |
| 2859 | .next_nodes = { |
| 2860 | [LISP_CP_INPUT_NEXT_DROP] = "error-drop", |
| 2861 | }, |
| 2862 | }; |
| 2863 | /* *INDENT-ON* */ |
| 2864 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2865 | static int |
| 2866 | send_rloc_probe (lisp_cp_main_t * lcm, gid_address_t * deid, |
| 2867 | u32 local_locator_set_index, ip_address_t * sloc, |
| 2868 | ip_address_t * rloc) |
| 2869 | { |
| 2870 | locator_set_t *ls; |
| 2871 | u32 bi; |
| 2872 | vlib_buffer_t *b; |
| 2873 | vlib_frame_t *f; |
| 2874 | u64 nonce = 0; |
| 2875 | u32 next_index, *to_next; |
| 2876 | gid_address_t *itr_rlocs; |
| 2877 | |
| 2878 | ls = pool_elt_at_index (lcm->locator_set_pool, local_locator_set_index); |
| 2879 | itr_rlocs = build_itr_rloc_list (lcm, ls); |
| 2880 | |
| 2881 | b = build_map_request (lcm, deid, sloc, rloc, itr_rlocs, &nonce, &bi); |
| 2882 | vec_free (itr_rlocs); |
| 2883 | if (!b) |
| 2884 | return -1; |
| 2885 | |
| 2886 | vnet_buffer (b)->sw_if_index[VLIB_TX] = 0; |
| 2887 | |
Filip Tehlar | 272c69e | 2017-02-15 16:40:35 +0100 | [diff] [blame] | 2888 | next_index = (ip_addr_version (rloc) == IP4) ? |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2889 | ip4_lookup_node.index : ip6_lookup_node.index; |
| 2890 | |
| 2891 | f = vlib_get_frame_to_node (lcm->vlib_main, next_index); |
| 2892 | |
| 2893 | /* Enqueue the packet */ |
| 2894 | to_next = vlib_frame_vector_args (f); |
| 2895 | to_next[0] = bi; |
| 2896 | f->n_vectors = 1; |
| 2897 | vlib_put_frame_to_node (lcm->vlib_main, next_index, f); |
| 2898 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2899 | return 0; |
| 2900 | } |
| 2901 | |
| 2902 | static int |
| 2903 | send_rloc_probes (lisp_cp_main_t * lcm) |
| 2904 | { |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2905 | u8 lprio = 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2906 | mapping_t *lm; |
| 2907 | fwd_entry_t *e; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2908 | locator_pair_t *lp; |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2909 | u32 si, rloc_probes_sent = 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2910 | |
| 2911 | /* *INDENT-OFF* */ |
| 2912 | pool_foreach (e, lcm->fwd_entry_pool, |
| 2913 | { |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2914 | if (vec_len (e->locator_pairs) == 0) |
| 2915 | continue; |
| 2916 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2917 | si = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &e->leid); |
| 2918 | if (~0 == si) |
| 2919 | { |
| 2920 | clib_warning ("internal error: cannot find local eid %U in " |
| 2921 | "map-cache!", format_gid_address, &e->leid); |
| 2922 | continue; |
| 2923 | } |
| 2924 | lm = pool_elt_at_index (lcm->mapping_pool, si); |
| 2925 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2926 | /* get the best (lowest) priority */ |
| 2927 | lprio = e->locator_pairs[0].priority; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2928 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2929 | /* send rloc-probe for pair(s) with the best remote locator priority */ |
| 2930 | vec_foreach (lp, e->locator_pairs) |
| 2931 | { |
| 2932 | if (lp->priority != lprio) |
| 2933 | break; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2934 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2935 | /* get first remote locator */ |
| 2936 | send_rloc_probe (lcm, &e->reid, lm->locator_set_index, &lp->lcl_loc, |
| 2937 | &lp->rmt_loc); |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2938 | rloc_probes_sent++; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2939 | } |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2940 | }); |
| 2941 | /* *INDENT-ON* */ |
| 2942 | |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2943 | vlib_node_increment_counter (vlib_get_main (), lisp_cp_output_node.index, |
| 2944 | LISP_CP_OUTPUT_ERROR_RLOC_PROBES_SENT, |
| 2945 | rloc_probes_sent); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2946 | return 0; |
| 2947 | } |
| 2948 | |
| 2949 | static int |
| 2950 | send_map_register (lisp_cp_main_t * lcm, u8 want_map_notif) |
| 2951 | { |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2952 | pending_map_register_t *pmr; |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 2953 | u32 bi, map_registers_sent = 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2954 | vlib_buffer_t *b; |
| 2955 | ip_address_t sloc; |
| 2956 | vlib_frame_t *f; |
| 2957 | u64 nonce = 0; |
| 2958 | u32 next_index, *to_next; |
Filip Tehlar | cf121c8 | 2017-05-03 10:12:44 +0200 | [diff] [blame] | 2959 | mapping_t *records, *r, *group, *k; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2960 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2961 | if (get_egress_map_server_ip (lcm, &sloc) < 0) |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2962 | return -1; |
| 2963 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2964 | records = build_map_register_record_list (lcm); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2965 | if (!records) |
| 2966 | return -1; |
| 2967 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2968 | vec_foreach (r, records) |
| 2969 | { |
| 2970 | u8 *key = r->key; |
| 2971 | u8 key_id = r->key_id; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2972 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2973 | if (!key) |
| 2974 | continue; /* no secret key -> map-register cannot be sent */ |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 2975 | |
Filip Tehlar | cf121c8 | 2017-05-03 10:12:44 +0200 | [diff] [blame] | 2976 | group = 0; |
| 2977 | vec_add1 (group, r[0]); |
| 2978 | |
| 2979 | /* group mappings that share common key */ |
| 2980 | for (k = r + 1; k < vec_end (records); k++) |
| 2981 | { |
| 2982 | if (k->key_id != r->key_id) |
| 2983 | continue; |
| 2984 | |
| 2985 | if (vec_is_equal (k->key, r->key)) |
| 2986 | { |
| 2987 | vec_add1 (group, k[0]); |
| 2988 | k->key = 0; /* don't process this mapping again */ |
| 2989 | } |
| 2990 | } |
| 2991 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 2992 | b = build_map_register (lcm, &sloc, &lcm->active_map_server, &nonce, |
| 2993 | want_map_notif, group, key_id, key, &bi); |
Filip Tehlar | cf121c8 | 2017-05-03 10:12:44 +0200 | [diff] [blame] | 2994 | vec_free (group); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 2995 | if (!b) |
| 2996 | continue; |
| 2997 | |
| 2998 | vnet_buffer (b)->sw_if_index[VLIB_TX] = 0; |
| 2999 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 3000 | next_index = (ip_addr_version (&lcm->active_map_server) == IP4) ? |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3001 | ip4_lookup_node.index : ip6_lookup_node.index; |
| 3002 | |
| 3003 | f = vlib_get_frame_to_node (lcm->vlib_main, next_index); |
| 3004 | |
| 3005 | /* Enqueue the packet */ |
| 3006 | to_next = vlib_frame_vector_args (f); |
| 3007 | to_next[0] = bi; |
| 3008 | f->n_vectors = 1; |
| 3009 | vlib_put_frame_to_node (lcm->vlib_main, next_index, f); |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 3010 | map_registers_sent++; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3011 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 3012 | pool_get (lcm->pending_map_registers_pool, pmr); |
| 3013 | memset (pmr, 0, sizeof (*pmr)); |
| 3014 | pmr->time_to_expire = PENDING_MREG_EXPIRATION_TIME; |
| 3015 | hash_set (lcm->map_register_messages_by_nonce, nonce, |
| 3016 | pmr - lcm->pending_map_registers_pool); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3017 | } |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3018 | free_map_register_records (records); |
| 3019 | |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 3020 | vlib_node_increment_counter (vlib_get_main (), lisp_cp_output_node.index, |
| 3021 | LISP_CP_OUTPUT_ERROR_MAP_REGISTERS_SENT, |
| 3022 | map_registers_sent); |
| 3023 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3024 | return 0; |
| 3025 | } |
| 3026 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3027 | #define send_encapsulated_map_request(lcm, seid, deid, smr) \ |
| 3028 | _send_encapsulated_map_request(lcm, seid, deid, smr, 0) |
| 3029 | |
| 3030 | #define resend_encapsulated_map_request(lcm, seid, deid, smr) \ |
| 3031 | _send_encapsulated_map_request(lcm, seid, deid, smr, 1) |
| 3032 | |
| 3033 | static int |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3034 | _send_encapsulated_map_request (lisp_cp_main_t * lcm, |
| 3035 | gid_address_t * seid, gid_address_t * deid, |
| 3036 | u8 is_smr_invoked, u8 is_resend) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3037 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3038 | u32 next_index, bi = 0, *to_next, map_index; |
| 3039 | vlib_buffer_t *b; |
| 3040 | vlib_frame_t *f; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3041 | u64 nonce = 0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3042 | locator_set_t *loc_set; |
| 3043 | mapping_t *map; |
| 3044 | pending_map_request_t *pmr, *duplicate_pmr = 0; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3045 | ip_address_t sloc; |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 3046 | u32 ls_index; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3047 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3048 | /* if there is already a pending request remember it */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3049 | |
| 3050 | /* *INDENT-OFF* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3051 | pool_foreach(pmr, lcm->pending_map_requests_pool, |
| 3052 | ({ |
| 3053 | if (!gid_address_cmp (&pmr->src, seid) |
| 3054 | && !gid_address_cmp (&pmr->dst, deid)) |
| 3055 | { |
| 3056 | duplicate_pmr = pmr; |
| 3057 | break; |
| 3058 | } |
| 3059 | })); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3060 | /* *INDENT-ON* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3061 | |
| 3062 | if (!is_resend && duplicate_pmr) |
| 3063 | { |
| 3064 | /* don't send the request if there is a pending map request already */ |
| 3065 | return 0; |
| 3066 | } |
| 3067 | |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 3068 | u8 pitr_mode = lcm->flags & LISP_FLAG_PITR_MODE; |
| 3069 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3070 | /* get locator-set for seid */ |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 3071 | if (!pitr_mode && gid_address_type (deid) != GID_ADDR_NSH) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3072 | { |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 3073 | map_index = gid_dictionary_lookup (&lcm->mapping_index_by_gid, seid); |
| 3074 | if (map_index == ~0) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3075 | { |
| 3076 | clib_warning ("No local mapping found in eid-table for %U!", |
| 3077 | format_gid_address, seid); |
| 3078 | return -1; |
| 3079 | } |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 3080 | |
| 3081 | map = pool_elt_at_index (lcm->mapping_pool, map_index); |
| 3082 | |
| 3083 | if (!map->local) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3084 | { |
| 3085 | clib_warning |
| 3086 | ("Mapping found for src eid %U is not marked as local!", |
| 3087 | format_gid_address, seid); |
| 3088 | return -1; |
| 3089 | } |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 3090 | ls_index = map->locator_set_index; |
Filip Tehlar | 53f09e3 | 2016-05-19 14:25:44 +0200 | [diff] [blame] | 3091 | } |
| 3092 | else |
| 3093 | { |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 3094 | if (pitr_mode) |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 3095 | { |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 3096 | if (lcm->pitr_map_index != ~0) |
| 3097 | { |
| 3098 | map = |
| 3099 | pool_elt_at_index (lcm->mapping_pool, lcm->pitr_map_index); |
| 3100 | ls_index = map->locator_set_index; |
| 3101 | } |
| 3102 | else |
| 3103 | { |
| 3104 | return -1; |
| 3105 | } |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 3106 | } |
| 3107 | else |
| 3108 | { |
| 3109 | if (lcm->nsh_map_index == (u32) ~ 0) |
| 3110 | { |
| 3111 | clib_warning ("No locator-set defined for NSH!"); |
| 3112 | return -1; |
| 3113 | } |
| 3114 | else |
| 3115 | { |
| 3116 | map = pool_elt_at_index (lcm->mapping_pool, lcm->nsh_map_index); |
| 3117 | ls_index = map->locator_set_index; |
| 3118 | } |
| 3119 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3120 | } |
| 3121 | |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 3122 | /* overwrite locator set if map-request itr-rlocs configured */ |
| 3123 | if (~0 != lcm->mreq_itr_rlocs) |
| 3124 | { |
| 3125 | ls_index = lcm->mreq_itr_rlocs; |
| 3126 | } |
| 3127 | |
| 3128 | loc_set = pool_elt_at_index (lcm->locator_set_pool, ls_index); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3129 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3130 | if (get_egress_map_resolver_ip (lcm, &sloc) < 0) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3131 | { |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3132 | if (duplicate_pmr) |
| 3133 | duplicate_pmr->to_be_removed = 1; |
| 3134 | return -1; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3135 | } |
Florin Coras | ddfafb8 | 2016-05-13 18:09:56 +0200 | [diff] [blame] | 3136 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3137 | /* build the encapsulated map request */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3138 | b = build_encapsulated_map_request (lcm, seid, deid, loc_set, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3139 | &lcm->active_map_resolver, |
| 3140 | &sloc, is_smr_invoked, &nonce, &bi); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3141 | |
| 3142 | if (!b) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3143 | return -1; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3144 | |
Florin Coras | f727db9 | 2016-06-23 15:01:58 +0200 | [diff] [blame] | 3145 | /* set fib index to default and lookup node */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3146 | vnet_buffer (b)->sw_if_index[VLIB_TX] = 0; |
| 3147 | next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ? |
| 3148 | ip4_lookup_node.index : ip6_lookup_node.index; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3149 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3150 | f = vlib_get_frame_to_node (lcm->vlib_main, next_index); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3151 | |
| 3152 | /* Enqueue the packet */ |
| 3153 | to_next = vlib_frame_vector_args (f); |
| 3154 | to_next[0] = bi; |
| 3155 | f->n_vectors = 1; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3156 | vlib_put_frame_to_node (lcm->vlib_main, next_index, f); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3157 | |
Filip Tehlar | 5908e18 | 2017-10-16 06:51:11 -0700 | [diff] [blame] | 3158 | vlib_node_increment_counter (vlib_get_main (), lisp_cp_output_node.index, |
| 3159 | LISP_CP_OUTPUT_ERROR_MAP_REQUESTS_SENT, 1); |
| 3160 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3161 | if (duplicate_pmr) |
| 3162 | /* if there is a pending request already update it */ |
| 3163 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3164 | if (clib_fifo_elts (duplicate_pmr->nonces) >= PENDING_MREQ_QUEUE_LEN) |
| 3165 | { |
| 3166 | /* remove the oldest nonce */ |
| 3167 | u64 CLIB_UNUSED (tmp), *nonce_del; |
| 3168 | nonce_del = clib_fifo_head (duplicate_pmr->nonces); |
| 3169 | hash_unset (lcm->pending_map_requests_by_nonce, nonce_del[0]); |
| 3170 | clib_fifo_sub1 (duplicate_pmr->nonces, tmp); |
| 3171 | } |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3172 | |
Florin Coras | f4691cd | 2016-08-15 19:16:32 +0200 | [diff] [blame] | 3173 | clib_fifo_add1 (duplicate_pmr->nonces, nonce); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3174 | hash_set (lcm->pending_map_requests_by_nonce, nonce, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3175 | duplicate_pmr - lcm->pending_map_requests_pool); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3176 | } |
| 3177 | else |
| 3178 | { |
| 3179 | /* add map-request to pending requests table */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3180 | pool_get (lcm->pending_map_requests_pool, pmr); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3181 | memset (pmr, 0, sizeof (*pmr)); |
| 3182 | gid_address_copy (&pmr->src, seid); |
| 3183 | gid_address_copy (&pmr->dst, deid); |
Florin Coras | f4691cd | 2016-08-15 19:16:32 +0200 | [diff] [blame] | 3184 | clib_fifo_add1 (pmr->nonces, nonce); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3185 | pmr->is_smr_invoked = is_smr_invoked; |
| 3186 | reset_pending_mr_counters (pmr); |
| 3187 | hash_set (lcm->pending_map_requests_by_nonce, nonce, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3188 | pmr - lcm->pending_map_requests_pool); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3189 | } |
| 3190 | |
| 3191 | return 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3192 | } |
| 3193 | |
| 3194 | static void |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3195 | get_src_and_dst_ip (void *hdr, ip_address_t * src, ip_address_t * dst) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3196 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3197 | ip4_header_t *ip4 = hdr; |
| 3198 | ip6_header_t *ip6; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3199 | |
| 3200 | if ((ip4->ip_version_and_header_length & 0xF0) == 0x40) |
| 3201 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3202 | ip_address_set (src, &ip4->src_address, IP4); |
| 3203 | ip_address_set (dst, &ip4->dst_address, IP4); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3204 | } |
| 3205 | else |
| 3206 | { |
| 3207 | ip6 = hdr; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3208 | ip_address_set (src, &ip6->src_address, IP6); |
| 3209 | ip_address_set (dst, &ip6->dst_address, IP6); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3210 | } |
| 3211 | } |
| 3212 | |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 3213 | static u32 |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3214 | lisp_get_vni_from_buffer_ip (lisp_cp_main_t * lcm, vlib_buffer_t * b, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3215 | u8 version) |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 3216 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3217 | uword *vnip; |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 3218 | u32 vni = ~0, table_id = ~0; |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 3219 | |
Florin Coras | 87e4069 | 2016-09-22 18:02:17 +0200 | [diff] [blame] | 3220 | table_id = fib_table_get_table_id_for_sw_if_index ((version == |
| 3221 | IP4 ? FIB_PROTOCOL_IP4 : |
| 3222 | FIB_PROTOCOL_IP6), |
| 3223 | vnet_buffer |
| 3224 | (b)->sw_if_index |
| 3225 | [VLIB_RX]); |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 3226 | |
| 3227 | vnip = hash_get (lcm->vni_by_table_id, table_id); |
| 3228 | if (vnip) |
| 3229 | vni = vnip[0]; |
| 3230 | else |
| 3231 | clib_warning ("vrf %d is not mapped to any vni!", table_id); |
| 3232 | |
| 3233 | return vni; |
| 3234 | } |
| 3235 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3236 | always_inline u32 |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3237 | lisp_get_bd_from_buffer_eth (vlib_buffer_t * b) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3238 | { |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3239 | u32 sw_if_index0; |
| 3240 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3241 | l2input_main_t *l2im = &l2input_main; |
| 3242 | l2_input_config_t *config; |
| 3243 | l2_bridge_domain_t *bd_config; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3244 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3245 | sw_if_index0 = vnet_buffer (b)->sw_if_index[VLIB_RX]; |
| 3246 | config = vec_elt_at_index (l2im->configs, sw_if_index0); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3247 | bd_config = vec_elt_at_index (l2im->bd_configs, config->bd_index); |
| 3248 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3249 | return bd_config->bd_id; |
| 3250 | } |
| 3251 | |
| 3252 | always_inline u32 |
| 3253 | lisp_get_vni_from_buffer_eth (lisp_cp_main_t * lcm, vlib_buffer_t * b) |
| 3254 | { |
| 3255 | uword *vnip; |
| 3256 | u32 vni = ~0; |
| 3257 | u32 bd = lisp_get_bd_from_buffer_eth (b); |
| 3258 | |
| 3259 | vnip = hash_get (lcm->vni_by_bd_id, bd); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3260 | if (vnip) |
| 3261 | vni = vnip[0]; |
| 3262 | else |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3263 | clib_warning ("bridge domain %d is not mapped to any vni!", bd); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3264 | |
| 3265 | return vni; |
| 3266 | } |
| 3267 | |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 3268 | void |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3269 | get_src_and_dst_eids_from_buffer (lisp_cp_main_t * lcm, vlib_buffer_t * b, |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 3270 | gid_address_t * src, gid_address_t * dst, |
| 3271 | u16 type) |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3272 | { |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 3273 | ethernet_header_t *eh; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3274 | u32 vni = 0; |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3275 | icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *opt; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3276 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3277 | memset (src, 0, sizeof (*src)); |
| 3278 | memset (dst, 0, sizeof (*dst)); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3279 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3280 | gid_address_type (dst) = GID_ADDR_NO_ADDRESS; |
| 3281 | gid_address_type (src) = GID_ADDR_NO_ADDRESS; |
| 3282 | |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3283 | if (LISP_AFI_IP == type || LISP_AFI_IP6 == type) |
| 3284 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3285 | ip4_header_t *ip; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3286 | u8 version, preflen; |
| 3287 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3288 | gid_address_type (src) = GID_ADDR_IP_PREFIX; |
| 3289 | gid_address_type (dst) = GID_ADDR_IP_PREFIX; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3290 | |
| 3291 | ip = vlib_buffer_get_current (b); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3292 | get_src_and_dst_ip (ip, &gid_address_ip (src), &gid_address_ip (dst)); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3293 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3294 | version = gid_address_ip_version (src); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3295 | preflen = ip_address_max_len (version); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3296 | gid_address_ippref_len (src) = preflen; |
| 3297 | gid_address_ippref_len (dst) = preflen; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3298 | |
| 3299 | vni = lisp_get_vni_from_buffer_ip (lcm, b, version); |
| 3300 | gid_address_vni (dst) = vni; |
| 3301 | gid_address_vni (src) = vni; |
| 3302 | } |
| 3303 | else if (LISP_AFI_MAC == type) |
| 3304 | { |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3305 | ethernet_arp_header_t *ah; |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3306 | |
| 3307 | eh = vlib_buffer_get_current (b); |
| 3308 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3309 | if (clib_net_to_host_u16 (eh->type) == ETHERNET_TYPE_ARP) |
| 3310 | { |
| 3311 | ah = (ethernet_arp_header_t *) (((u8 *) eh) + sizeof (*eh)); |
Florin Coras | c1c0976 | 2018-01-30 03:21:32 -0800 | [diff] [blame] | 3312 | gid_address_type (dst) = GID_ADDR_ARP; |
| 3313 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3314 | if (clib_net_to_host_u16 (ah->opcode) |
| 3315 | != ETHERNET_ARP_OPCODE_request) |
Florin Coras | c1c0976 | 2018-01-30 03:21:32 -0800 | [diff] [blame] | 3316 | { |
| 3317 | memset (&gid_address_arp_ndp_ip (dst), 0, |
| 3318 | sizeof (ip_address_t)); |
| 3319 | ip_addr_version (&gid_address_arp_ndp_ip (dst)) = IP4; |
| 3320 | gid_address_arp_ndp_bd (dst) = ~0; |
| 3321 | return; |
| 3322 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3323 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3324 | gid_address_arp_bd (dst) = lisp_get_bd_from_buffer_eth (b); |
| 3325 | clib_memcpy (&gid_address_arp_ip4 (dst), |
| 3326 | &ah->ip4_over_ethernet[1].ip4, 4); |
| 3327 | } |
| 3328 | else |
| 3329 | { |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3330 | if (clib_net_to_host_u16 (eh->type) == ETHERNET_TYPE_IP6) |
| 3331 | { |
| 3332 | ip6_header_t *ip; |
| 3333 | ip = (ip6_header_t *) (eh + 1); |
| 3334 | |
| 3335 | if (IP_PROTOCOL_ICMP6 == ip->protocol) |
| 3336 | { |
| 3337 | icmp6_neighbor_solicitation_or_advertisement_header_t *ndh; |
| 3338 | ndh = ip6_next_header (ip); |
| 3339 | if (ndh->icmp.type == ICMP6_neighbor_solicitation) |
| 3340 | { |
Florin Coras | c1c0976 | 2018-01-30 03:21:32 -0800 | [diff] [blame] | 3341 | gid_address_type (dst) = GID_ADDR_NDP; |
| 3342 | |
| 3343 | /* check that source link layer address option is present */ |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3344 | opt = (void *) (ndh + 1); |
| 3345 | if ((opt->header.type != |
| 3346 | ICMP6_NEIGHBOR_DISCOVERY_OPTION_source_link_layer_address) |
| 3347 | || (opt->header.n_data_u64s != 1)) |
Florin Coras | c1c0976 | 2018-01-30 03:21:32 -0800 | [diff] [blame] | 3348 | { |
| 3349 | memset (&gid_address_arp_ndp_ip (dst), 0, |
| 3350 | sizeof (ip_address_t)); |
| 3351 | ip_addr_version (&gid_address_arp_ndp_ip (dst)) = |
| 3352 | IP6; |
| 3353 | gid_address_arp_ndp_bd (dst) = ~0; |
| 3354 | gid_address_type (src) = GID_ADDR_NO_ADDRESS; |
| 3355 | return; |
| 3356 | } |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3357 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3358 | gid_address_ndp_bd (dst) = |
| 3359 | lisp_get_bd_from_buffer_eth (b); |
| 3360 | ip_address_set (&gid_address_arp_ndp_ip (dst), |
| 3361 | &ndh->target_address, IP6); |
| 3362 | return; |
| 3363 | } |
| 3364 | } |
| 3365 | } |
| 3366 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3367 | gid_address_type (src) = GID_ADDR_MAC; |
| 3368 | gid_address_type (dst) = GID_ADDR_MAC; |
| 3369 | mac_copy (&gid_address_mac (src), eh->src_address); |
| 3370 | mac_copy (&gid_address_mac (dst), eh->dst_address); |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3371 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3372 | /* get vni */ |
| 3373 | vni = lisp_get_vni_from_buffer_eth (lcm, b); |
| 3374 | |
| 3375 | gid_address_vni (dst) = vni; |
| 3376 | gid_address_vni (src) = vni; |
| 3377 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3378 | } |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 3379 | else if (LISP_AFI_LCAF == type) |
| 3380 | { |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 3381 | lisp_nsh_hdr_t *nh; |
| 3382 | eh = vlib_buffer_get_current (b); |
| 3383 | |
| 3384 | if (clib_net_to_host_u16 (eh->type) == ETHERNET_TYPE_NSH) |
| 3385 | { |
| 3386 | nh = (lisp_nsh_hdr_t *) (((u8 *) eh) + sizeof (*eh)); |
| 3387 | u32 spi = clib_net_to_host_u32 (nh->spi_si << 8); |
| 3388 | u8 si = (u8) clib_net_to_host_u32 (nh->spi_si); |
| 3389 | gid_address_nsh_spi (dst) = spi; |
| 3390 | gid_address_nsh_si (dst) = si; |
| 3391 | |
| 3392 | gid_address_type (dst) = GID_ADDR_NSH; |
Filip Tehlar | 8d7a0b9 | 2017-10-18 07:10:25 -0700 | [diff] [blame] | 3393 | gid_address_type (src) = GID_ADDR_NSH; |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 3394 | } |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 3395 | } |
Florin Coras | 1a1adc7 | 2016-07-22 01:45:30 +0200 | [diff] [blame] | 3396 | } |
| 3397 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3398 | static uword |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 3399 | lisp_cp_lookup_inline (vlib_main_t * vm, |
| 3400 | vlib_node_runtime_t * node, |
| 3401 | vlib_frame_t * from_frame, int overlay) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3402 | { |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3403 | icmp6_neighbor_discovery_ethernet_link_layer_address_option_t *opt; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3404 | u32 *from, *to_next, di, si; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3405 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | 5908e18 | 2017-10-16 06:51:11 -0700 | [diff] [blame] | 3406 | u32 next_index; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3407 | uword n_left_from, n_left_to_next; |
| 3408 | vnet_main_t *vnm = vnet_get_main (); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3409 | |
| 3410 | from = vlib_frame_vector_args (from_frame); |
| 3411 | n_left_from = from_frame->n_vectors; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3412 | next_index = node->cached_next_index; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3413 | |
| 3414 | while (n_left_from > 0) |
| 3415 | { |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3416 | vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3417 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3418 | while (n_left_from > 0 && n_left_to_next > 0) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3419 | { |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3420 | u32 pi0, sw_if_index0, next0; |
| 3421 | u64 mac0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3422 | vlib_buffer_t *b0; |
| 3423 | gid_address_t src, dst; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3424 | ethernet_arp_header_t *arp0; |
| 3425 | ethernet_header_t *eth0; |
| 3426 | vnet_hw_interface_t *hw_if0; |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3427 | ethernet_header_t *eh0; |
| 3428 | icmp6_neighbor_solicitation_or_advertisement_header_t *ndh; |
| 3429 | ip6_header_t *ip0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3430 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3431 | pi0 = from[0]; |
| 3432 | from += 1; |
| 3433 | n_left_from -= 1; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3434 | to_next[0] = pi0; |
| 3435 | to_next += 1; |
| 3436 | n_left_to_next -= 1; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3437 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3438 | b0 = vlib_get_buffer (vm, pi0); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3439 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3440 | /* src/dst eid pair */ |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 3441 | get_src_and_dst_eids_from_buffer (lcm, b0, &src, &dst, overlay); |
Filip Tehlar | 324112f | 2016-06-02 16:07:38 +0200 | [diff] [blame] | 3442 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3443 | if (gid_address_type (&dst) == GID_ADDR_ARP) |
| 3444 | { |
| 3445 | mac0 = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst); |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3446 | if (GID_LOOKUP_MISS_L2 == mac0) |
| 3447 | goto drop; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3448 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3449 | /* send ARP reply */ |
| 3450 | sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; |
| 3451 | vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3452 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3453 | hw_if0 = vnet_get_sup_hw_interface (vnm, sw_if_index0); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3454 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3455 | eth0 = vlib_buffer_get_current (b0); |
| 3456 | arp0 = (ethernet_arp_header_t *) (((u8 *) eth0) |
| 3457 | + sizeof (*eth0)); |
| 3458 | arp0->opcode = clib_host_to_net_u16 (ETHERNET_ARP_OPCODE_reply); |
| 3459 | arp0->ip4_over_ethernet[1] = arp0->ip4_over_ethernet[0]; |
| 3460 | clib_memcpy (arp0->ip4_over_ethernet[0].ethernet, |
| 3461 | (u8 *) & mac0, 6); |
| 3462 | clib_memcpy (&arp0->ip4_over_ethernet[0].ip4, |
| 3463 | &gid_address_arp_ip4 (&dst), 4); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3464 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3465 | /* Hardware must be ethernet-like. */ |
| 3466 | ASSERT (vec_len (hw_if0->hw_address) == 6); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3467 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3468 | clib_memcpy (eth0->dst_address, eth0->src_address, 6); |
| 3469 | clib_memcpy (eth0->src_address, hw_if0->hw_address, 6); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3470 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3471 | b0->error = node->errors[LISP_CP_LOOKUP_ERROR_ARP_REPLY_TX]; |
| 3472 | next0 = LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX; |
| 3473 | goto enqueue; |
| 3474 | } |
| 3475 | else if (gid_address_type (&dst) == GID_ADDR_NDP) |
| 3476 | { |
| 3477 | mac0 = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst); |
| 3478 | if (GID_LOOKUP_MISS_L2 == mac0) |
| 3479 | goto drop; |
| 3480 | |
| 3481 | sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX]; |
| 3482 | vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0; |
| 3483 | |
| 3484 | eh0 = vlib_buffer_get_current (b0); |
| 3485 | ip0 = (ip6_header_t *) (eh0 + 1); |
| 3486 | ndh = ip6_next_header (ip0); |
| 3487 | int bogus_length; |
| 3488 | ip0->dst_address = ip0->src_address; |
| 3489 | ip0->src_address = ndh->target_address; |
| 3490 | ip0->hop_limit = 255; |
| 3491 | opt = (void *) (ndh + 1); |
| 3492 | opt->header.type = |
| 3493 | ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address; |
| 3494 | clib_memcpy (opt->ethernet_address, (u8 *) & mac0, 6); |
| 3495 | ndh->icmp.type = ICMP6_neighbor_advertisement; |
| 3496 | ndh->advertisement_flags = clib_host_to_net_u32 |
| 3497 | (ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_SOLICITED | |
| 3498 | ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE); |
| 3499 | ndh->icmp.checksum = 0; |
| 3500 | ndh->icmp.checksum = |
| 3501 | ip6_tcp_udp_icmp_compute_checksum (vm, b0, ip0, |
| 3502 | &bogus_length); |
| 3503 | clib_memcpy (eh0->dst_address, eh0->src_address, 6); |
| 3504 | clib_memcpy (eh0->src_address, (u8 *) & mac0, 6); |
| 3505 | b0->error = |
| 3506 | node->errors |
| 3507 | [LISP_CP_LOOKUP_ERROR_NDP_NEIGHBOR_ADVERTISEMENT_TX]; |
| 3508 | next0 = LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX; |
| 3509 | goto enqueue; |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3510 | } |
| 3511 | |
Paul Vinciguerra | bdc0e6b | 2018-09-22 05:32:50 -0700 | [diff] [blame] | 3512 | /* if we have remote mapping for destination already in map-cache |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3513 | add forwarding tunnel directly. If not send a map-request */ |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 3514 | di = gid_dictionary_sd_lookup (&lcm->mapping_index_by_gid, &dst, |
| 3515 | &src); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3516 | if (~0 != di) |
| 3517 | { |
| 3518 | mapping_t *m = vec_elt_at_index (lcm->mapping_pool, di); |
| 3519 | /* send a map-request also in case of negative mapping entry |
| 3520 | with corresponding action */ |
| 3521 | if (m->action == LISP_SEND_MAP_REQUEST) |
| 3522 | { |
| 3523 | /* send map-request */ |
| 3524 | queue_map_request (&src, &dst, 0 /* smr_invoked */ , |
| 3525 | 0 /* is_resend */ ); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3526 | } |
| 3527 | else |
| 3528 | { |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 3529 | if (GID_ADDR_NSH != gid_address_type (&dst)) |
| 3530 | { |
| 3531 | si = gid_dictionary_lookup (&lcm->mapping_index_by_gid, |
| 3532 | &src); |
| 3533 | } |
| 3534 | else |
| 3535 | si = lcm->nsh_map_index; |
| 3536 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3537 | if (~0 != si) |
| 3538 | { |
Filip Tehlar | ce1aae4 | 2017-01-04 10:42:25 +0100 | [diff] [blame] | 3539 | dp_add_fwd_entry_from_mt (si, di); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3540 | } |
| 3541 | } |
| 3542 | } |
| 3543 | else |
| 3544 | { |
| 3545 | /* send map-request */ |
| 3546 | queue_map_request (&src, &dst, 0 /* smr_invoked */ , |
| 3547 | 0 /* is_resend */ ); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3548 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3549 | |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3550 | drop: |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3551 | b0->error = node->errors[LISP_CP_LOOKUP_ERROR_DROP]; |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3552 | next0 = LISP_CP_LOOKUP_NEXT_DROP; |
| 3553 | enqueue: |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3554 | if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) |
| 3555 | { |
| 3556 | lisp_cp_lookup_trace_t *tr = vlib_add_trace (vm, node, b0, |
| 3557 | sizeof (*tr)); |
Andrej Kozemcak | 94e3476 | 2016-05-25 12:43:21 +0200 | [diff] [blame] | 3558 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3559 | memset (tr, 0, sizeof (*tr)); |
| 3560 | gid_address_copy (&tr->dst_eid, &dst); |
Florin Coras | 5a1c11b | 2016-09-06 16:29:34 +0200 | [diff] [blame] | 3561 | ip_address_copy (&tr->map_resolver_ip, |
| 3562 | &lcm->active_map_resolver); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3563 | } |
| 3564 | gid_address_free (&dst); |
| 3565 | gid_address_free (&src); |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3566 | vlib_validate_buffer_enqueue_x1 (vm, node, next_index, |
| 3567 | to_next, |
| 3568 | n_left_to_next, pi0, next0); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3569 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3570 | |
Filip Tehlar | d5a65db | 2017-05-17 17:21:10 +0200 | [diff] [blame] | 3571 | vlib_put_next_frame (vm, node, next_index, n_left_to_next); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3572 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3573 | return from_frame->n_vectors; |
| 3574 | } |
| 3575 | |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 3576 | static uword |
| 3577 | lisp_cp_lookup_ip4 (vlib_main_t * vm, |
| 3578 | vlib_node_runtime_t * node, vlib_frame_t * from_frame) |
| 3579 | { |
| 3580 | return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP)); |
| 3581 | } |
| 3582 | |
| 3583 | static uword |
| 3584 | lisp_cp_lookup_ip6 (vlib_main_t * vm, |
| 3585 | vlib_node_runtime_t * node, vlib_frame_t * from_frame) |
| 3586 | { |
| 3587 | return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_IP6)); |
| 3588 | } |
| 3589 | |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 3590 | static uword |
| 3591 | lisp_cp_lookup_l2 (vlib_main_t * vm, |
| 3592 | vlib_node_runtime_t * node, vlib_frame_t * from_frame) |
| 3593 | { |
| 3594 | return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_MAC)); |
| 3595 | } |
| 3596 | |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 3597 | static uword |
| 3598 | lisp_cp_lookup_nsh (vlib_main_t * vm, |
| 3599 | vlib_node_runtime_t * node, vlib_frame_t * from_frame) |
| 3600 | { |
| 3601 | /* TODO decide if NSH should be propagated as LCAF or not */ |
| 3602 | return (lisp_cp_lookup_inline (vm, node, from_frame, LISP_AFI_LCAF)); |
| 3603 | } |
| 3604 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3605 | /* *INDENT-OFF* */ |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 3606 | VLIB_REGISTER_NODE (lisp_cp_lookup_ip4_node) = { |
| 3607 | .function = lisp_cp_lookup_ip4, |
| 3608 | .name = "lisp-cp-lookup-ip4", |
| 3609 | .vector_size = sizeof (u32), |
| 3610 | .format_trace = format_lisp_cp_lookup_trace, |
| 3611 | .type = VLIB_NODE_TYPE_INTERNAL, |
| 3612 | |
| 3613 | .n_errors = LISP_CP_LOOKUP_N_ERROR, |
| 3614 | .error_strings = lisp_cp_lookup_error_strings, |
| 3615 | |
| 3616 | .n_next_nodes = LISP_CP_LOOKUP_N_NEXT, |
| 3617 | |
| 3618 | .next_nodes = { |
| 3619 | [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop", |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3620 | [LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX] = "interface-output", |
Neale Ranns | 0bfe5d8 | 2016-08-25 15:29:12 +0100 | [diff] [blame] | 3621 | }, |
| 3622 | }; |
| 3623 | /* *INDENT-ON* */ |
| 3624 | |
| 3625 | /* *INDENT-OFF* */ |
| 3626 | VLIB_REGISTER_NODE (lisp_cp_lookup_ip6_node) = { |
| 3627 | .function = lisp_cp_lookup_ip6, |
| 3628 | .name = "lisp-cp-lookup-ip6", |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3629 | .vector_size = sizeof (u32), |
| 3630 | .format_trace = format_lisp_cp_lookup_trace, |
| 3631 | .type = VLIB_NODE_TYPE_INTERNAL, |
| 3632 | |
| 3633 | .n_errors = LISP_CP_LOOKUP_N_ERROR, |
| 3634 | .error_strings = lisp_cp_lookup_error_strings, |
| 3635 | |
| 3636 | .n_next_nodes = LISP_CP_LOOKUP_N_NEXT, |
| 3637 | |
| 3638 | .next_nodes = { |
| 3639 | [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop", |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3640 | [LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX] = "interface-output", |
Neale Ranns | 5e575b1 | 2016-10-03 09:40:25 +0100 | [diff] [blame] | 3641 | }, |
| 3642 | }; |
| 3643 | /* *INDENT-ON* */ |
| 3644 | |
| 3645 | /* *INDENT-OFF* */ |
| 3646 | VLIB_REGISTER_NODE (lisp_cp_lookup_l2_node) = { |
| 3647 | .function = lisp_cp_lookup_l2, |
| 3648 | .name = "lisp-cp-lookup-l2", |
| 3649 | .vector_size = sizeof (u32), |
| 3650 | .format_trace = format_lisp_cp_lookup_trace, |
| 3651 | .type = VLIB_NODE_TYPE_INTERNAL, |
| 3652 | |
| 3653 | .n_errors = LISP_CP_LOOKUP_N_ERROR, |
| 3654 | .error_strings = lisp_cp_lookup_error_strings, |
| 3655 | |
| 3656 | .n_next_nodes = LISP_CP_LOOKUP_N_NEXT, |
| 3657 | |
| 3658 | .next_nodes = { |
| 3659 | [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop", |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3660 | [LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX] = "interface-output", |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3661 | }, |
| 3662 | }; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3663 | /* *INDENT-ON* */ |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3664 | |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 3665 | /* *INDENT-OFF* */ |
| 3666 | VLIB_REGISTER_NODE (lisp_cp_lookup_nsh_node) = { |
| 3667 | .function = lisp_cp_lookup_nsh, |
| 3668 | .name = "lisp-cp-lookup-nsh", |
| 3669 | .vector_size = sizeof (u32), |
| 3670 | .format_trace = format_lisp_cp_lookup_trace, |
| 3671 | .type = VLIB_NODE_TYPE_INTERNAL, |
| 3672 | |
| 3673 | .n_errors = LISP_CP_LOOKUP_N_ERROR, |
| 3674 | .error_strings = lisp_cp_lookup_error_strings, |
| 3675 | |
| 3676 | .n_next_nodes = LISP_CP_LOOKUP_N_NEXT, |
| 3677 | |
| 3678 | .next_nodes = { |
| 3679 | [LISP_CP_LOOKUP_NEXT_DROP] = "error-drop", |
Filip Tehlar | 0587999 | 2017-09-05 15:46:09 +0200 | [diff] [blame] | 3680 | [LISP_CP_LOOKUP_NEXT_ARP_NDP_REPLY_TX] = "interface-output", |
Florin Coras | ce1b4c7 | 2017-01-26 14:25:34 -0800 | [diff] [blame] | 3681 | }, |
| 3682 | }; |
| 3683 | /* *INDENT-ON* */ |
| 3684 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3685 | /* lisp_cp_input statistics */ |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 3686 | #define foreach_lisp_cp_input_error \ |
| 3687 | _(DROP, "drop") \ |
| 3688 | _(RLOC_PROBE_REQ_RECEIVED, "rloc-probe requests received") \ |
| 3689 | _(RLOC_PROBE_REP_RECEIVED, "rloc-probe replies received") \ |
| 3690 | _(MAP_NOTIFIES_RECEIVED, "map-notifies received") \ |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3691 | _(MAP_REPLIES_RECEIVED, "map-replies received") |
| 3692 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3693 | static char *lisp_cp_input_error_strings[] = { |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3694 | #define _(sym,string) string, |
| 3695 | foreach_lisp_cp_input_error |
| 3696 | #undef _ |
| 3697 | }; |
| 3698 | |
| 3699 | typedef enum |
| 3700 | { |
| 3701 | #define _(sym,str) LISP_CP_INPUT_ERROR_##sym, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3702 | foreach_lisp_cp_input_error |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3703 | #undef _ |
| 3704 | LISP_CP_INPUT_N_ERROR, |
| 3705 | } lisp_cp_input_error_t; |
| 3706 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3707 | typedef struct |
| 3708 | { |
| 3709 | gid_address_t dst_eid; |
| 3710 | ip4_address_t map_resolver_ip; |
| 3711 | } lisp_cp_input_trace_t; |
| 3712 | |
| 3713 | u8 * |
| 3714 | format_lisp_cp_input_trace (u8 * s, va_list * args) |
| 3715 | { |
| 3716 | CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); |
| 3717 | CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3718 | CLIB_UNUSED (lisp_cp_input_trace_t * t) = |
| 3719 | va_arg (*args, lisp_cp_input_trace_t *); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3720 | |
| 3721 | s = format (s, "LISP-CP-INPUT: TODO"); |
| 3722 | return s; |
| 3723 | } |
| 3724 | |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 3725 | static void |
| 3726 | remove_expired_mapping (lisp_cp_main_t * lcm, u32 mi) |
| 3727 | { |
| 3728 | mapping_t *m; |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 3729 | vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args; |
| 3730 | memset (adj_args, 0, sizeof (adj_args[0])); |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 3731 | |
| 3732 | m = pool_elt_at_index (lcm->mapping_pool, mi); |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 3733 | |
| 3734 | gid_address_copy (&adj_args->reid, &m->eid); |
| 3735 | adj_args->is_add = 0; |
| 3736 | if (vnet_lisp_add_del_adjacency (adj_args)) |
| 3737 | clib_warning ("failed to del adjacency!"); |
| 3738 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3739 | vnet_lisp_del_mapping (&m->eid, NULL); |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 3740 | mapping_delete_timer (lcm, mi); |
| 3741 | } |
| 3742 | |
| 3743 | static void |
| 3744 | mapping_start_expiration_timer (lisp_cp_main_t * lcm, u32 mi, |
| 3745 | f64 expiration_time) |
| 3746 | { |
| 3747 | mapping_t *m; |
| 3748 | u64 now = clib_cpu_time_now (); |
| 3749 | u64 cpu_cps = lcm->vlib_main->clib_time.clocks_per_second; |
| 3750 | u64 exp_clock_time = now + expiration_time * cpu_cps; |
| 3751 | |
| 3752 | m = pool_elt_at_index (lcm->mapping_pool, mi); |
| 3753 | |
| 3754 | m->timer_set = 1; |
| 3755 | timing_wheel_insert (&lcm->wheel, exp_clock_time, mi); |
| 3756 | } |
| 3757 | |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3758 | static void |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3759 | process_expired_mapping (lisp_cp_main_t * lcm, u32 mi) |
| 3760 | { |
| 3761 | int rv; |
| 3762 | vnet_lisp_gpe_add_del_fwd_entry_args_t _a, *a = &_a; |
| 3763 | mapping_t *m = pool_elt_at_index (lcm->mapping_pool, mi); |
| 3764 | uword *fei; |
| 3765 | fwd_entry_t *fe; |
| 3766 | vlib_counter_t c; |
| 3767 | u8 have_stats = 0; |
| 3768 | |
| 3769 | if (m->delete_after_expiration) |
| 3770 | { |
| 3771 | remove_expired_mapping (lcm, mi); |
| 3772 | return; |
| 3773 | } |
| 3774 | |
| 3775 | fei = hash_get (lcm->fwd_entry_by_mapping_index, mi); |
| 3776 | if (!fei) |
| 3777 | return; |
| 3778 | |
| 3779 | fe = pool_elt_at_index (lcm->fwd_entry_pool, fei[0]); |
| 3780 | |
| 3781 | memset (a, 0, sizeof (*a)); |
| 3782 | a->rmt_eid = fe->reid; |
| 3783 | if (fe->is_src_dst) |
| 3784 | a->lcl_eid = fe->leid; |
| 3785 | a->vni = gid_address_vni (&fe->reid); |
| 3786 | |
| 3787 | rv = vnet_lisp_gpe_get_fwd_stats (a, &c); |
| 3788 | if (0 == rv) |
| 3789 | have_stats = 1; |
| 3790 | |
| 3791 | if (m->almost_expired) |
| 3792 | { |
| 3793 | m->almost_expired = 0; /* reset flag */ |
| 3794 | if (have_stats) |
| 3795 | { |
| 3796 | if (m->packets != c.packets) |
| 3797 | { |
| 3798 | /* mapping is in use, re-fetch */ |
| 3799 | map_request_args_t mr_args; |
| 3800 | memset (&mr_args, 0, sizeof (mr_args)); |
| 3801 | mr_args.seid = fe->leid; |
| 3802 | mr_args.deid = fe->reid; |
| 3803 | |
| 3804 | send_map_request_thread_fn (&mr_args); |
| 3805 | } |
| 3806 | else |
| 3807 | remove_expired_mapping (lcm, mi); |
| 3808 | } |
| 3809 | else |
| 3810 | remove_expired_mapping (lcm, mi); |
| 3811 | } |
| 3812 | else |
| 3813 | { |
| 3814 | m->almost_expired = 1; |
| 3815 | mapping_start_expiration_timer (lcm, mi, TIME_UNTIL_REFETCH_OR_DELETE); |
| 3816 | |
| 3817 | if (have_stats) |
| 3818 | /* save counter */ |
| 3819 | m->packets = c.packets; |
| 3820 | else |
| 3821 | m->delete_after_expiration = 1; |
| 3822 | } |
| 3823 | } |
| 3824 | |
| 3825 | static void |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3826 | map_records_arg_free (map_records_arg_t * a) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3827 | { |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 3828 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3829 | mapping_t *m; |
| 3830 | vec_foreach (m, a->mappings) |
| 3831 | { |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3832 | vec_free (m->locators); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3833 | gid_address_free (&m->eid); |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3834 | } |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 3835 | pool_put (lcm->map_records_args_pool[vlib_get_thread_index ()], a); |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3836 | } |
| 3837 | |
| 3838 | void * |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3839 | process_map_reply (map_records_arg_t * a) |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3840 | { |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3841 | mapping_t *m; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3842 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 3843 | u32 dst_map_index = 0; |
| 3844 | pending_map_request_t *pmr; |
| 3845 | u64 *noncep; |
| 3846 | uword *pmr_index; |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3847 | u8 is_changed = 0; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3848 | |
| 3849 | if (a->is_rloc_probe) |
| 3850 | goto done; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3851 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3852 | /* Check pending requests table and nonce */ |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3853 | pmr_index = hash_get (lcm->pending_map_requests_by_nonce, a->nonce); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3854 | if (!pmr_index) |
| 3855 | { |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3856 | clib_warning ("No pending map-request entry with nonce %lu!", a->nonce); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3857 | goto done; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3858 | } |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3859 | pmr = pool_elt_at_index (lcm->pending_map_requests_pool, pmr_index[0]); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3860 | |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3861 | vec_foreach (m, a->mappings) |
| 3862 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3863 | vnet_lisp_add_del_mapping_args_t _m_args, *m_args = &_m_args; |
| 3864 | memset (m_args, 0, sizeof (m_args[0])); |
| 3865 | gid_address_copy (&m_args->eid, &m->eid); |
| 3866 | m_args->action = m->action; |
| 3867 | m_args->authoritative = m->authoritative; |
| 3868 | m_args->ttl = m->ttl; |
| 3869 | m_args->is_static = 0; |
| 3870 | |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3871 | /* insert/update mappings cache */ |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3872 | vnet_lisp_add_mapping (m_args, m->locators, &dst_map_index, &is_changed); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3873 | |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 3874 | if (dst_map_index == (u32) ~ 0) |
| 3875 | continue; |
| 3876 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3877 | if (is_changed) |
| 3878 | { |
| 3879 | /* try to program forwarding only if mapping saved or updated */ |
| 3880 | vnet_lisp_add_del_adjacency_args_t _adj_args, *adj_args = &_adj_args; |
| 3881 | memset (adj_args, 0, sizeof (adj_args[0])); |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 3882 | |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 3883 | gid_address_copy (&adj_args->leid, &pmr->src); |
| 3884 | gid_address_copy (&adj_args->reid, &m->eid); |
| 3885 | adj_args->is_add = 1; |
| 3886 | |
| 3887 | if (vnet_lisp_add_del_adjacency (adj_args)) |
| 3888 | clib_warning ("failed to add adjacency!"); |
| 3889 | } |
Florin Coras | f3dc11a | 2017-01-24 03:13:43 -0800 | [diff] [blame] | 3890 | |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 3891 | if ((u32) ~ 0 != m->ttl) |
Filip Tehlar | 0a62e5a | 2017-11-02 01:38:49 -0700 | [diff] [blame] | 3892 | mapping_start_expiration_timer (lcm, dst_map_index, |
| 3893 | (m->ttl == 0) ? 0 : MAPPING_TIMEOUT); |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 3894 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3895 | |
| 3896 | /* remove pending map request entry */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3897 | |
| 3898 | /* *INDENT-OFF* */ |
Florin Coras | f4691cd | 2016-08-15 19:16:32 +0200 | [diff] [blame] | 3899 | clib_fifo_foreach (noncep, pmr->nonces, ({ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3900 | hash_unset(lcm->pending_map_requests_by_nonce, noncep[0]); |
Florin Coras | f4691cd | 2016-08-15 19:16:32 +0200 | [diff] [blame] | 3901 | })); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 3902 | /* *INDENT-ON* */ |
| 3903 | |
| 3904 | clib_fifo_free (pmr->nonces); |
| 3905 | pool_put (lcm->pending_map_requests_pool, pmr); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3906 | |
| 3907 | done: |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 3908 | a->is_free = 1; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 3909 | return 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 3910 | } |
| 3911 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3912 | static int |
| 3913 | is_auth_data_valid (map_notify_hdr_t * h, u32 msg_len, |
| 3914 | lisp_key_type_t key_id, u8 * key) |
| 3915 | { |
| 3916 | u8 *auth_data = 0; |
| 3917 | u16 auth_data_len; |
| 3918 | int result; |
| 3919 | |
| 3920 | auth_data_len = auth_data_len_by_key_id (key_id); |
| 3921 | if ((u16) ~ 0 == auth_data_len) |
| 3922 | { |
| 3923 | clib_warning ("invalid length for key_id %d!", key_id); |
| 3924 | return 0; |
| 3925 | } |
| 3926 | |
| 3927 | /* save auth data */ |
| 3928 | vec_validate (auth_data, auth_data_len - 1); |
| 3929 | clib_memcpy (auth_data, MNOTIFY_DATA (h), auth_data_len); |
| 3930 | |
| 3931 | /* clear auth data */ |
| 3932 | memset (MNOTIFY_DATA (h), 0, auth_data_len); |
| 3933 | |
| 3934 | /* get hash of the message */ |
| 3935 | unsigned char *code = HMAC (get_encrypt_fcn (key_id), key, vec_len (key), |
| 3936 | (unsigned char *) h, msg_len, NULL, NULL); |
| 3937 | |
| 3938 | result = memcmp (code, auth_data, auth_data_len); |
| 3939 | |
| 3940 | vec_free (auth_data); |
| 3941 | |
| 3942 | return !result; |
| 3943 | } |
| 3944 | |
| 3945 | static void |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3946 | process_map_notify (map_records_arg_t * a) |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3947 | { |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3948 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3949 | uword *pmr_index; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3950 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3951 | pmr_index = hash_get (lcm->map_register_messages_by_nonce, a->nonce); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3952 | if (!pmr_index) |
| 3953 | { |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3954 | clib_warning ("No pending map-register entry with nonce %lu!", |
| 3955 | a->nonce); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 3956 | return; |
| 3957 | } |
| 3958 | |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 3959 | a->is_free = 1; |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 3960 | pool_put_index (lcm->pending_map_registers_pool, pmr_index[0]); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3961 | hash_unset (lcm->map_register_messages_by_nonce, a->nonce); |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 3962 | |
| 3963 | /* reset map-notify counter */ |
| 3964 | lcm->expired_map_registers = 0; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 3965 | } |
| 3966 | |
| 3967 | static mapping_t * |
| 3968 | get_mapping (lisp_cp_main_t * lcm, gid_address_t * e) |
| 3969 | { |
| 3970 | u32 mi; |
| 3971 | |
| 3972 | mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, e); |
| 3973 | if (~0 == mi) |
| 3974 | { |
| 3975 | clib_warning ("eid %U not found in map-cache!", unformat_gid_address, |
| 3976 | e); |
| 3977 | return 0; |
| 3978 | } |
| 3979 | return pool_elt_at_index (lcm->mapping_pool, mi); |
| 3980 | } |
| 3981 | |
| 3982 | /** |
| 3983 | * When map-notify is received it is necessary that all EIDs in the record |
| 3984 | * list share common key. The key is then used to verify authentication |
| 3985 | * data in map-notify message. |
| 3986 | */ |
| 3987 | static int |
| 3988 | map_record_integrity_check (lisp_cp_main_t * lcm, mapping_t * maps, |
| 3989 | u32 key_id, u8 ** key_out) |
| 3990 | { |
| 3991 | u32 i, len = vec_len (maps); |
| 3992 | mapping_t *m; |
| 3993 | |
| 3994 | /* get key of the first mapping */ |
| 3995 | m = get_mapping (lcm, &maps[0].eid); |
| 3996 | if (!m || !m->key) |
| 3997 | return -1; |
| 3998 | |
| 3999 | key_out[0] = m->key; |
| 4000 | |
| 4001 | for (i = 1; i < len; i++) |
| 4002 | { |
| 4003 | m = get_mapping (lcm, &maps[i].eid); |
| 4004 | if (!m || !m->key) |
| 4005 | return -1; |
| 4006 | |
| 4007 | if (key_id != m->key_id || vec_cmp (m->key, key_out[0])) |
| 4008 | { |
| 4009 | clib_warning ("keys does not match! %v, %v", key_out[0], m->key); |
| 4010 | return -1; |
| 4011 | } |
| 4012 | } |
| 4013 | return 0; |
| 4014 | } |
| 4015 | |
| 4016 | static int |
| 4017 | parse_map_records (vlib_buffer_t * b, map_records_arg_t * a, u8 count) |
| 4018 | { |
| 4019 | locator_t *locators = 0; |
| 4020 | u32 i, len; |
| 4021 | gid_address_t deid; |
| 4022 | mapping_t m; |
| 4023 | locator_t *loc; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4024 | |
Filip Tehlar | 68c74fc | 2017-05-04 14:52:42 +0200 | [diff] [blame] | 4025 | memset (&m, 0, sizeof (m)); |
| 4026 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4027 | /* parse record eid */ |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4028 | for (i = 0; i < count; i++) |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4029 | { |
Florin Coras | e68de8c | 2017-06-05 15:38:50 -0700 | [diff] [blame] | 4030 | locators = 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4031 | len = lisp_msg_parse_mapping_record (b, &deid, &locators, NULL); |
| 4032 | if (len == ~0) |
| 4033 | { |
| 4034 | clib_warning ("Failed to parse mapping record!"); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4035 | vec_foreach (loc, locators) locator_free (loc); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4036 | vec_free (locators); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4037 | return -1; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4038 | } |
| 4039 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4040 | m.locators = locators; |
| 4041 | gid_address_copy (&m.eid, &deid); |
| 4042 | vec_add1 (a->mappings, m); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4043 | } |
| 4044 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4045 | return 0; |
| 4046 | } |
| 4047 | |
| 4048 | static map_records_arg_t * |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4049 | map_record_args_get () |
| 4050 | { |
| 4051 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4052 | map_records_arg_t *rec; |
| 4053 | |
| 4054 | /* Cleanup first */ |
| 4055 | /* *INDENT-OFF* */ |
| 4056 | pool_foreach (rec, lcm->map_records_args_pool[vlib_get_thread_index()], ({ |
| 4057 | if (rec->is_free) |
| 4058 | map_records_arg_free (rec); |
| 4059 | })); |
| 4060 | /* *INDENT-ON* */ |
| 4061 | |
| 4062 | pool_get (lcm->map_records_args_pool[vlib_get_thread_index ()], rec); |
| 4063 | return rec; |
| 4064 | } |
| 4065 | |
| 4066 | static map_records_arg_t * |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4067 | parse_map_notify (vlib_buffer_t * b) |
| 4068 | { |
| 4069 | int rc = 0; |
| 4070 | map_notify_hdr_t *mnotif_hdr; |
| 4071 | lisp_key_type_t key_id; |
| 4072 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4073 | u8 *key = 0; |
| 4074 | gid_address_t deid; |
| 4075 | u16 auth_data_len = 0; |
| 4076 | u8 record_count; |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4077 | map_records_arg_t *a; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4078 | |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4079 | a = map_record_args_get (); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4080 | memset (a, 0, sizeof (*a)); |
| 4081 | mnotif_hdr = vlib_buffer_get_current (b); |
| 4082 | vlib_buffer_pull (b, sizeof (*mnotif_hdr)); |
| 4083 | memset (&deid, 0, sizeof (deid)); |
| 4084 | |
| 4085 | a->nonce = MNOTIFY_NONCE (mnotif_hdr); |
| 4086 | key_id = clib_net_to_host_u16 (MNOTIFY_KEY_ID (mnotif_hdr)); |
| 4087 | auth_data_len = auth_data_len_by_key_id (key_id); |
| 4088 | |
| 4089 | /* advance buffer by authentication data */ |
| 4090 | vlib_buffer_pull (b, auth_data_len); |
| 4091 | |
| 4092 | record_count = MNOTIFY_REC_COUNT (mnotif_hdr); |
| 4093 | rc = parse_map_records (b, a, record_count); |
| 4094 | if (rc != 0) |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4095 | { |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4096 | map_records_arg_free (a); |
| 4097 | return 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4098 | } |
| 4099 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4100 | rc = map_record_integrity_check (lcm, a->mappings, key_id, &key); |
| 4101 | if (rc != 0) |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4102 | { |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4103 | map_records_arg_free (a); |
| 4104 | return 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4105 | } |
| 4106 | |
| 4107 | /* verify authentication data */ |
| 4108 | if (!is_auth_data_valid (mnotif_hdr, vlib_buffer_get_tail (b) |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4109 | - (u8 *) mnotif_hdr, key_id, key)) |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4110 | { |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4111 | clib_warning ("Map-notify auth data verification failed for nonce " |
| 4112 | "0x%lx!", a->nonce); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4113 | map_records_arg_free (a); |
| 4114 | return 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4115 | } |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4116 | return a; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4117 | } |
| 4118 | |
| 4119 | static vlib_buffer_t * |
| 4120 | build_map_reply (lisp_cp_main_t * lcm, ip_address_t * sloc, |
| 4121 | ip_address_t * dst, u64 nonce, u8 probe_bit, |
| 4122 | mapping_t * records, u16 dst_port, u32 * bi_res) |
| 4123 | { |
| 4124 | vlib_buffer_t *b; |
| 4125 | u32 bi; |
| 4126 | vlib_main_t *vm = lcm->vlib_main; |
| 4127 | |
| 4128 | if (vlib_buffer_alloc (vm, &bi, 1) != 1) |
| 4129 | { |
| 4130 | clib_warning ("Can't allocate buffer for Map-Register!"); |
| 4131 | return 0; |
| 4132 | } |
| 4133 | |
| 4134 | b = vlib_get_buffer (vm, bi); |
| 4135 | |
| 4136 | /* leave some space for the encap headers */ |
| 4137 | vlib_buffer_make_headroom (b, MAX_LISP_MSG_ENCAP_LEN); |
| 4138 | |
| 4139 | lisp_msg_put_map_reply (b, records, nonce, probe_bit); |
| 4140 | |
| 4141 | /* push outer ip header */ |
Florin Coras | fdbc382 | 2017-07-27 00:34:12 -0700 | [diff] [blame] | 4142 | pkt_push_udp_and_ip (vm, b, LISP_CONTROL_PORT, dst_port, sloc, dst, 1); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4143 | |
| 4144 | bi_res[0] = bi; |
| 4145 | return b; |
| 4146 | } |
| 4147 | |
| 4148 | static int |
| 4149 | send_map_reply (lisp_cp_main_t * lcm, u32 mi, ip_address_t * dst, |
| 4150 | u8 probe_bit, u64 nonce, u16 dst_port, |
| 4151 | ip_address_t * probed_loc) |
| 4152 | { |
| 4153 | ip_address_t src; |
| 4154 | u32 bi; |
| 4155 | vlib_buffer_t *b; |
| 4156 | vlib_frame_t *f; |
| 4157 | u32 next_index, *to_next; |
| 4158 | mapping_t *records = 0, *m; |
| 4159 | |
| 4160 | m = pool_elt_at_index (lcm->mapping_pool, mi); |
| 4161 | if (!m) |
| 4162 | return -1; |
| 4163 | |
| 4164 | vec_add1 (records, m[0]); |
| 4165 | add_locators (lcm, &records[0], m->locator_set_index, probed_loc); |
| 4166 | memset (&src, 0, sizeof (src)); |
| 4167 | |
| 4168 | if (!ip_fib_get_first_egress_ip_for_dst (lcm, dst, &src)) |
| 4169 | { |
Paul Vinciguerra | bdc0e6b | 2018-09-22 05:32:50 -0700 | [diff] [blame] | 4170 | clib_warning ("can't find interface address for %U", format_ip_address, |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4171 | dst); |
| 4172 | return -1; |
| 4173 | } |
| 4174 | |
| 4175 | b = build_map_reply (lcm, &src, dst, nonce, probe_bit, records, dst_port, |
| 4176 | &bi); |
| 4177 | if (!b) |
| 4178 | return -1; |
| 4179 | free_map_register_records (records); |
| 4180 | |
| 4181 | vnet_buffer (b)->sw_if_index[VLIB_TX] = 0; |
| 4182 | next_index = (ip_addr_version (&lcm->active_map_resolver) == IP4) ? |
| 4183 | ip4_lookup_node.index : ip6_lookup_node.index; |
| 4184 | |
| 4185 | f = vlib_get_frame_to_node (lcm->vlib_main, next_index); |
| 4186 | |
| 4187 | /* Enqueue the packet */ |
| 4188 | to_next = vlib_frame_vector_args (f); |
| 4189 | to_next[0] = bi; |
| 4190 | f->n_vectors = 1; |
| 4191 | vlib_put_frame_to_node (lcm->vlib_main, next_index, f); |
| 4192 | return 0; |
| 4193 | } |
| 4194 | |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 4195 | static void |
| 4196 | find_ip_header (vlib_buffer_t * b, u8 ** ip_hdr) |
| 4197 | { |
Damjan Marion | 072401e | 2017-07-13 18:53:27 +0200 | [diff] [blame] | 4198 | const i32 start = vnet_buffer (b)->l3_hdr_offset; |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 4199 | if (start < 0 && start < -sizeof (b->pre_data)) |
| 4200 | { |
| 4201 | *ip_hdr = 0; |
| 4202 | return; |
| 4203 | } |
| 4204 | |
| 4205 | *ip_hdr = b->data + start; |
| 4206 | if ((u8 *) * ip_hdr > (u8 *) vlib_buffer_get_current (b)) |
| 4207 | *ip_hdr = 0; |
| 4208 | } |
| 4209 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4210 | void |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4211 | process_map_request (vlib_main_t * vm, vlib_node_runtime_t * node, |
| 4212 | lisp_cp_main_t * lcm, vlib_buffer_t * b) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4213 | { |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 4214 | u8 *ip_hdr = 0; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4215 | ip_address_t *dst_loc = 0, probed_loc, src_loc; |
| 4216 | mapping_t m; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4217 | map_request_hdr_t *mreq_hdr; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4218 | gid_address_t src, dst; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4219 | u64 nonce; |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4220 | u32 i, len = 0, rloc_probe_recv = 0; |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4221 | gid_address_t *itr_rlocs = 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4222 | |
| 4223 | mreq_hdr = vlib_buffer_get_current (b); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4224 | if (!MREQ_SMR (mreq_hdr) && !MREQ_RLOC_PROBE (mreq_hdr)) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4225 | { |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4226 | clib_warning |
| 4227 | ("Only SMR Map-Requests and RLOC probe supported for now!"); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4228 | return; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4229 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4230 | |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 4231 | vlib_buffer_pull (b, sizeof (*mreq_hdr)); |
| 4232 | nonce = MREQ_NONCE (mreq_hdr); |
| 4233 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4234 | /* parse src eid */ |
| 4235 | len = lisp_msg_parse_addr (b, &src); |
| 4236 | if (len == ~0) |
| 4237 | return; |
| 4238 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4239 | len = lisp_msg_parse_itr_rlocs (b, &itr_rlocs, |
| 4240 | MREQ_ITR_RLOC_COUNT (mreq_hdr) + 1); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4241 | if (len == ~0) |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4242 | goto done; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4243 | |
| 4244 | /* parse eid records and send SMR-invoked map-requests */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4245 | for (i = 0; i < MREQ_REC_COUNT (mreq_hdr); i++) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4246 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4247 | memset (&dst, 0, sizeof (dst)); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4248 | len = lisp_msg_parse_eid_rec (b, &dst); |
| 4249 | if (len == ~0) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4250 | { |
| 4251 | clib_warning ("Can't parse map-request EID-record"); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4252 | goto done; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4253 | } |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4254 | |
| 4255 | if (MREQ_SMR (mreq_hdr)) |
| 4256 | { |
| 4257 | /* send SMR-invoked map-requests */ |
| 4258 | queue_map_request (&dst, &src, 1 /* invoked */ , 0 /* resend */ ); |
| 4259 | } |
| 4260 | else if (MREQ_RLOC_PROBE (mreq_hdr)) |
| 4261 | { |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 4262 | find_ip_header (b, &ip_hdr); |
| 4263 | if (!ip_hdr) |
| 4264 | { |
| 4265 | clib_warning ("Cannot find the IP header!"); |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4266 | goto done; |
Filip Tehlar | b601f22 | 2017-01-02 10:22:56 +0100 | [diff] [blame] | 4267 | } |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4268 | rloc_probe_recv++; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4269 | memset (&m, 0, sizeof (m)); |
| 4270 | u32 mi = gid_dictionary_lookup (&lcm->mapping_index_by_gid, &dst); |
| 4271 | |
| 4272 | // TODO: select best locator; for now use the first one |
| 4273 | dst_loc = &gid_address_ip (&itr_rlocs[0]); |
| 4274 | |
| 4275 | /* get src/dst IP addresses */ |
| 4276 | get_src_and_dst_ip (ip_hdr, &src_loc, &probed_loc); |
| 4277 | |
| 4278 | // TODO get source port from buffer |
| 4279 | u16 src_port = LISP_CONTROL_PORT; |
| 4280 | |
| 4281 | send_map_reply (lcm, mi, dst_loc, 1 /* probe-bit */ , nonce, |
| 4282 | src_port, &probed_loc); |
| 4283 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4284 | } |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4285 | |
| 4286 | done: |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4287 | vlib_node_increment_counter (vm, node->node_index, |
| 4288 | LISP_CP_INPUT_ERROR_RLOC_PROBE_REQ_RECEIVED, |
| 4289 | rloc_probe_recv); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4290 | vec_free (itr_rlocs); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4291 | } |
| 4292 | |
Filip Tehlar | 816f437 | 2017-04-26 16:09:06 +0200 | [diff] [blame] | 4293 | map_records_arg_t * |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4294 | parse_map_reply (vlib_buffer_t * b) |
| 4295 | { |
| 4296 | locator_t probed; |
| 4297 | gid_address_t deid; |
| 4298 | void *h; |
| 4299 | u32 i, len = 0; |
| 4300 | mapping_t m; |
| 4301 | map_reply_hdr_t *mrep_hdr; |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4302 | map_records_arg_t *a; |
| 4303 | |
| 4304 | a = map_record_args_get (); |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4305 | memset (a, 0, sizeof (*a)); |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4306 | |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4307 | locator_t *locators; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4308 | |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4309 | mrep_hdr = vlib_buffer_get_current (b); |
| 4310 | a->nonce = MREP_NONCE (mrep_hdr); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4311 | a->is_rloc_probe = MREP_RLOC_PROBE (mrep_hdr); |
Filip Tehlar | 816f437 | 2017-04-26 16:09:06 +0200 | [diff] [blame] | 4312 | if (!vlib_buffer_has_space (b, sizeof (*mrep_hdr))) |
| 4313 | { |
| 4314 | clib_mem_free (a); |
| 4315 | return 0; |
| 4316 | } |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4317 | vlib_buffer_pull (b, sizeof (*mrep_hdr)); |
| 4318 | |
| 4319 | for (i = 0; i < MREP_REC_COUNT (mrep_hdr); i++) |
| 4320 | { |
| 4321 | memset (&m, 0, sizeof (m)); |
| 4322 | locators = 0; |
| 4323 | h = vlib_buffer_get_current (b); |
| 4324 | |
| 4325 | m.ttl = clib_net_to_host_u32 (MAP_REC_TTL (h)); |
| 4326 | m.action = MAP_REC_ACTION (h); |
| 4327 | m.authoritative = MAP_REC_AUTH (h); |
| 4328 | |
| 4329 | len = lisp_msg_parse_mapping_record (b, &deid, &locators, &probed); |
| 4330 | if (len == ~0) |
| 4331 | { |
| 4332 | clib_warning ("Failed to parse mapping record!"); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4333 | map_records_arg_free (a); |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4334 | return 0; |
| 4335 | } |
| 4336 | |
| 4337 | m.locators = locators; |
| 4338 | gid_address_copy (&m.eid, &deid); |
| 4339 | vec_add1 (a->mappings, m); |
| 4340 | } |
| 4341 | return a; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4342 | } |
| 4343 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4344 | static void |
| 4345 | queue_map_reply_for_processing (map_records_arg_t * a) |
| 4346 | { |
Florin Coras | 655fcc4 | 2017-01-10 08:57:54 -0800 | [diff] [blame] | 4347 | vl_api_rpc_call_main_thread (process_map_reply, (u8 *) a, sizeof (*a)); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4348 | } |
| 4349 | |
| 4350 | static void |
| 4351 | queue_map_notify_for_processing (map_records_arg_t * a) |
| 4352 | { |
| 4353 | vl_api_rpc_call_main_thread (process_map_notify, (u8 *) a, sizeof (a[0])); |
| 4354 | } |
| 4355 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4356 | static uword |
| 4357 | lisp_cp_input (vlib_main_t * vm, vlib_node_runtime_t * node, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4358 | vlib_frame_t * from_frame) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4359 | { |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4360 | u32 n_left_from, *from, *to_next_drop, rloc_probe_rep_recv = 0, |
| 4361 | map_notifies_recv = 0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4362 | lisp_msg_type_e type; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4363 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4364 | map_records_arg_t *a; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4365 | |
| 4366 | from = vlib_frame_vector_args (from_frame); |
| 4367 | n_left_from = from_frame->n_vectors; |
| 4368 | |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4369 | |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4370 | while (n_left_from > 0) |
| 4371 | { |
| 4372 | u32 n_left_to_next_drop; |
| 4373 | |
| 4374 | vlib_get_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4375 | to_next_drop, n_left_to_next_drop); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4376 | while (n_left_from > 0 && n_left_to_next_drop > 0) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4377 | { |
| 4378 | u32 bi0; |
| 4379 | vlib_buffer_t *b0; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4380 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4381 | bi0 = from[0]; |
| 4382 | from += 1; |
| 4383 | n_left_from -= 1; |
| 4384 | to_next_drop[0] = bi0; |
| 4385 | to_next_drop += 1; |
| 4386 | n_left_to_next_drop -= 1; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4387 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4388 | b0 = vlib_get_buffer (vm, bi0); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4389 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4390 | type = lisp_msg_type (vlib_buffer_get_current (b0)); |
| 4391 | switch (type) |
| 4392 | { |
| 4393 | case LISP_MAP_REPLY: |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4394 | a = parse_map_reply (b0); |
| 4395 | if (a) |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4396 | { |
| 4397 | if (a->is_rloc_probe) |
| 4398 | rloc_probe_rep_recv++; |
| 4399 | queue_map_reply_for_processing (a); |
| 4400 | } |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4401 | break; |
| 4402 | case LISP_MAP_REQUEST: |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4403 | process_map_request (vm, node, lcm, b0); |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4404 | break; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4405 | case LISP_MAP_NOTIFY: |
Filip Tehlar | fb9931f | 2016-12-09 13:52:38 +0100 | [diff] [blame] | 4406 | a = parse_map_notify (b0); |
| 4407 | if (a) |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4408 | { |
| 4409 | map_notifies_recv++; |
| 4410 | queue_map_notify_for_processing (a); |
| 4411 | } |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4412 | break; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4413 | default: |
| 4414 | clib_warning ("Unsupported LISP message type %d", type); |
| 4415 | break; |
| 4416 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4417 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4418 | b0->error = node->errors[LISP_CP_INPUT_ERROR_DROP]; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4419 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4420 | if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED)) |
| 4421 | { |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4422 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4423 | } |
| 4424 | } |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4425 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4426 | vlib_put_next_frame (vm, node, LISP_CP_INPUT_NEXT_DROP, |
| 4427 | n_left_to_next_drop); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4428 | } |
Filip Tehlar | cda7066 | 2017-01-16 10:30:03 +0100 | [diff] [blame] | 4429 | vlib_node_increment_counter (vm, node->node_index, |
| 4430 | LISP_CP_INPUT_ERROR_RLOC_PROBE_REP_RECEIVED, |
| 4431 | rloc_probe_rep_recv); |
| 4432 | vlib_node_increment_counter (vm, node->node_index, |
| 4433 | LISP_CP_INPUT_ERROR_MAP_NOTIFIES_RECEIVED, |
| 4434 | map_notifies_recv); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4435 | return from_frame->n_vectors; |
| 4436 | } |
| 4437 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4438 | /* *INDENT-OFF* */ |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4439 | VLIB_REGISTER_NODE (lisp_cp_input_node) = { |
| 4440 | .function = lisp_cp_input, |
| 4441 | .name = "lisp-cp-input", |
| 4442 | .vector_size = sizeof (u32), |
| 4443 | .format_trace = format_lisp_cp_input_trace, |
| 4444 | .type = VLIB_NODE_TYPE_INTERNAL, |
| 4445 | |
| 4446 | .n_errors = LISP_CP_INPUT_N_ERROR, |
| 4447 | .error_strings = lisp_cp_input_error_strings, |
| 4448 | |
| 4449 | .n_next_nodes = LISP_CP_INPUT_N_NEXT, |
| 4450 | |
| 4451 | .next_nodes = { |
| 4452 | [LISP_CP_INPUT_NEXT_DROP] = "error-drop", |
| 4453 | }, |
| 4454 | }; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4455 | /* *INDENT-ON* */ |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4456 | |
| 4457 | clib_error_t * |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4458 | lisp_cp_init (vlib_main_t * vm) |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4459 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4460 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4461 | clib_error_t *error = 0; |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4462 | vlib_thread_main_t *vtm = vlib_get_thread_main (); |
| 4463 | u32 num_threads; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4464 | |
| 4465 | if ((error = vlib_call_init_function (vm, lisp_gpe_init))) |
| 4466 | return error; |
| 4467 | |
| 4468 | lcm->im4 = &ip4_main; |
| 4469 | lcm->im6 = &ip6_main; |
| 4470 | lcm->vlib_main = vm; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4471 | lcm->vnet_main = vnet_get_main (); |
Andrej Kozemcak | b6e4d39 | 2016-06-14 13:55:57 +0200 | [diff] [blame] | 4472 | lcm->mreq_itr_rlocs = ~0; |
Florin Coras | ba888e4 | 2017-01-24 11:38:18 -0800 | [diff] [blame] | 4473 | lcm->flags = 0; |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 4474 | lcm->pitr_map_index = ~0; |
| 4475 | lcm->petr_map_index = ~0; |
Florin Coras | 5a1c11b | 2016-09-06 16:29:34 +0200 | [diff] [blame] | 4476 | memset (&lcm->active_map_resolver, 0, sizeof (lcm->active_map_resolver)); |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4477 | memset (&lcm->active_map_server, 0, sizeof (lcm->active_map_server)); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4478 | |
| 4479 | gid_dictionary_init (&lcm->mapping_index_by_gid); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4480 | lcm->do_map_resolver_election = 1; |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4481 | lcm->do_map_server_election = 1; |
Florin Coras | dca8804 | 2016-09-14 16:01:38 +0200 | [diff] [blame] | 4482 | lcm->map_request_mode = MR_MODE_DST_ONLY; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4483 | |
Florin Coras | acd4c63 | 2017-06-15 14:33:48 -0700 | [diff] [blame] | 4484 | num_threads = 1 /* main thread */ + vtm->n_threads; |
| 4485 | vec_validate (lcm->map_records_args_pool, num_threads - 1); |
| 4486 | |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 4487 | /* default vrf mapped to vni 0 */ |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4488 | hash_set (lcm->table_id_by_vni, 0, 0); |
| 4489 | hash_set (lcm->vni_by_table_id, 0, 0); |
Florin Coras | 577c355 | 2016-04-21 00:45:40 +0200 | [diff] [blame] | 4490 | |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 4491 | lisp_cp_register_dst_port (vm); |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4492 | |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 4493 | u64 now = clib_cpu_time_now (); |
| 4494 | timing_wheel_init (&lcm->wheel, now, vm->clib_time.clocks_per_second); |
Filip Tehlar | ef2a5bf | 2017-05-30 07:14:46 +0200 | [diff] [blame] | 4495 | lcm->nsh_map_index = ~0; |
Filip Tehlar | 1e553a0 | 2017-08-02 12:45:07 +0200 | [diff] [blame] | 4496 | lcm->map_register_ttl = MAP_REGISTER_DEFAULT_TTL; |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4497 | lcm->max_expired_map_registers = MAX_EXPIRED_MAP_REGISTERS_DEFAULT; |
| 4498 | lcm->expired_map_registers = 0; |
Filip Tehlar | a4980b8 | 2017-09-27 14:32:02 +0200 | [diff] [blame] | 4499 | lcm->transport_protocol = LISP_TRANSPORT_PROTOCOL_UDP; |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 4500 | lcm->flags |= LISP_FLAG_XTR_MODE; |
Florin Coras | e127a7e | 2016-02-18 22:20:01 +0100 | [diff] [blame] | 4501 | return 0; |
| 4502 | } |
| 4503 | |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 4504 | static int |
| 4505 | lisp_stats_api_fill (lisp_cp_main_t * lcm, lisp_gpe_main_t * lgm, |
| 4506 | lisp_api_stats_t * stat, lisp_stats_key_t * key, |
| 4507 | u32 stats_index) |
| 4508 | { |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 4509 | vlib_counter_t v; |
| 4510 | vlib_combined_counter_main_t *cm = &lgm->counters; |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 4511 | lisp_gpe_fwd_entry_key_t fwd_key; |
| 4512 | const lisp_gpe_tunnel_t *lgt; |
| 4513 | fwd_entry_t *fe; |
| 4514 | |
| 4515 | memset (stat, 0, sizeof (*stat)); |
| 4516 | memset (&fwd_key, 0, sizeof (fwd_key)); |
| 4517 | |
| 4518 | fe = pool_elt_at_index (lcm->fwd_entry_pool, key->fwd_entry_index); |
| 4519 | ASSERT (fe != 0); |
| 4520 | |
| 4521 | gid_to_dp_address (&fe->reid, &stat->deid); |
| 4522 | gid_to_dp_address (&fe->leid, &stat->seid); |
| 4523 | stat->vni = gid_address_vni (&fe->reid); |
| 4524 | |
| 4525 | lgt = lisp_gpe_tunnel_get (key->tunnel_index); |
| 4526 | stat->loc_rloc = lgt->key->lcl; |
| 4527 | stat->rmt_rloc = lgt->key->rmt; |
| 4528 | |
Filip Tehlar | 2151191 | 2017-04-07 10:41:42 +0200 | [diff] [blame] | 4529 | vlib_get_combined_counter (cm, stats_index, &v); |
| 4530 | stat->counters = v; |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 4531 | return 1; |
| 4532 | } |
| 4533 | |
| 4534 | lisp_api_stats_t * |
| 4535 | vnet_lisp_get_stats (void) |
| 4536 | { |
| 4537 | lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main (); |
| 4538 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4539 | lisp_api_stats_t *stats = 0, stat; |
| 4540 | lisp_stats_key_t *key; |
| 4541 | u32 index; |
| 4542 | |
| 4543 | /* *INDENT-OFF* */ |
| 4544 | hash_foreach_mem (key, index, lgm->lisp_stats_index_by_key, |
| 4545 | { |
| 4546 | if (lisp_stats_api_fill (lcm, lgm, &stat, key, index)) |
| 4547 | vec_add1 (stats, stat); |
| 4548 | }); |
| 4549 | /* *INDENT-ON* */ |
| 4550 | |
| 4551 | return stats; |
| 4552 | } |
| 4553 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4554 | static void * |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4555 | send_map_request_thread_fn (void *arg) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4556 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4557 | map_request_args_t *a = arg; |
| 4558 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4559 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4560 | if (a->is_resend) |
| 4561 | resend_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked); |
| 4562 | else |
Filip Tehlar | cdab4bd | 2016-12-06 10:31:57 +0100 | [diff] [blame] | 4563 | send_encapsulated_map_request (lcm, &a->seid, &a->deid, a->smr_invoked); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4564 | |
| 4565 | return 0; |
| 4566 | } |
| 4567 | |
| 4568 | static int |
| 4569 | queue_map_request (gid_address_t * seid, gid_address_t * deid, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4570 | u8 smr_invoked, u8 is_resend) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4571 | { |
| 4572 | map_request_args_t a; |
| 4573 | |
| 4574 | a.is_resend = is_resend; |
| 4575 | gid_address_copy (&a.seid, seid); |
| 4576 | gid_address_copy (&a.deid, deid); |
| 4577 | a.smr_invoked = smr_invoked; |
| 4578 | |
| 4579 | vl_api_rpc_call_main_thread (send_map_request_thread_fn, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4580 | (u8 *) & a, sizeof (a)); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4581 | return 0; |
| 4582 | } |
| 4583 | |
| 4584 | /** |
| 4585 | * Take an action with a pending map request depending on expiration time |
| 4586 | * and re-try counters. |
| 4587 | */ |
| 4588 | static void |
| 4589 | update_pending_request (pending_map_request_t * r, f64 dt) |
| 4590 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4591 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4592 | lisp_msmr_t *mr; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4593 | |
| 4594 | if (r->time_to_expire - dt < 0) |
| 4595 | /* it's time to decide what to do with this pending request */ |
| 4596 | { |
| 4597 | if (r->retries_num >= NUMBER_OF_RETRIES) |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4598 | /* too many retries -> assume current map resolver is not available */ |
| 4599 | { |
| 4600 | mr = get_map_resolver (&lcm->active_map_resolver); |
| 4601 | if (!mr) |
| 4602 | { |
| 4603 | clib_warning ("Map resolver %U not found - probably deleted " |
| 4604 | "by the user recently.", format_ip_address, |
| 4605 | &lcm->active_map_resolver); |
| 4606 | } |
| 4607 | else |
| 4608 | { |
| 4609 | clib_warning ("map resolver %U is unreachable, ignoring", |
| 4610 | format_ip_address, &lcm->active_map_resolver); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4611 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4612 | /* mark current map resolver unavailable so it won't be |
| 4613 | * selected next time */ |
| 4614 | mr->is_down = 1; |
| 4615 | mr->last_update = vlib_time_now (lcm->vlib_main); |
| 4616 | } |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4617 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4618 | reset_pending_mr_counters (r); |
| 4619 | elect_map_resolver (lcm); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4620 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4621 | /* try to find a next eligible map resolver and re-send */ |
| 4622 | queue_map_request (&r->src, &r->dst, r->is_smr_invoked, |
| 4623 | 1 /* resend */ ); |
| 4624 | } |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4625 | else |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4626 | { |
| 4627 | /* try again */ |
| 4628 | queue_map_request (&r->src, &r->dst, r->is_smr_invoked, |
| 4629 | 1 /* resend */ ); |
| 4630 | r->retries_num++; |
| 4631 | r->time_to_expire = PENDING_MREQ_EXPIRATION_TIME; |
| 4632 | } |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4633 | } |
| 4634 | else |
| 4635 | r->time_to_expire -= dt; |
| 4636 | } |
| 4637 | |
| 4638 | static void |
| 4639 | remove_dead_pending_map_requests (lisp_cp_main_t * lcm) |
| 4640 | { |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4641 | u64 *nonce; |
| 4642 | pending_map_request_t *pmr; |
| 4643 | u32 *to_be_removed = 0, *pmr_index; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4644 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4645 | /* *INDENT-OFF* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4646 | pool_foreach (pmr, lcm->pending_map_requests_pool, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4647 | ({ |
| 4648 | if (pmr->to_be_removed) |
| 4649 | { |
| 4650 | clib_fifo_foreach (nonce, pmr->nonces, ({ |
| 4651 | hash_unset (lcm->pending_map_requests_by_nonce, nonce[0]); |
| 4652 | })); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4653 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4654 | vec_add1 (to_be_removed, pmr - lcm->pending_map_requests_pool); |
| 4655 | } |
| 4656 | })); |
| 4657 | /* *INDENT-ON* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4658 | |
| 4659 | vec_foreach (pmr_index, to_be_removed) |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4660 | pool_put_index (lcm->pending_map_requests_pool, pmr_index[0]); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4661 | |
| 4662 | vec_free (to_be_removed); |
| 4663 | } |
| 4664 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4665 | static void |
| 4666 | update_rloc_probing (lisp_cp_main_t * lcm, f64 dt) |
| 4667 | { |
| 4668 | static f64 time_left = RLOC_PROBING_INTERVAL; |
| 4669 | |
| 4670 | if (!lcm->is_enabled || !lcm->rloc_probing) |
| 4671 | return; |
| 4672 | |
| 4673 | time_left -= dt; |
| 4674 | if (time_left <= 0) |
| 4675 | { |
| 4676 | time_left = RLOC_PROBING_INTERVAL; |
| 4677 | send_rloc_probes (lcm); |
| 4678 | } |
| 4679 | } |
| 4680 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4681 | static int |
| 4682 | update_pending_map_register (pending_map_register_t * r, f64 dt, u8 * del_all) |
| 4683 | { |
| 4684 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4685 | lisp_msmr_t *ms; |
| 4686 | del_all[0] = 0; |
| 4687 | |
| 4688 | r->time_to_expire -= dt; |
| 4689 | |
| 4690 | if (r->time_to_expire < 0) |
| 4691 | { |
| 4692 | lcm->expired_map_registers++; |
| 4693 | |
| 4694 | if (lcm->expired_map_registers >= lcm->max_expired_map_registers) |
| 4695 | { |
| 4696 | ms = get_map_server (&lcm->active_map_server); |
| 4697 | if (!ms) |
| 4698 | { |
| 4699 | clib_warning ("Map server %U not found - probably deleted " |
| 4700 | "by the user recently.", format_ip_address, |
| 4701 | &lcm->active_map_server); |
| 4702 | } |
| 4703 | else |
| 4704 | { |
| 4705 | clib_warning ("map server %U is unreachable, ignoring", |
| 4706 | format_ip_address, &lcm->active_map_server); |
| 4707 | |
| 4708 | /* mark current map server unavailable so it won't be |
| 4709 | * elected next time */ |
| 4710 | ms->is_down = 1; |
| 4711 | ms->last_update = vlib_time_now (lcm->vlib_main); |
| 4712 | } |
| 4713 | |
| 4714 | elect_map_server (lcm); |
| 4715 | |
| 4716 | /* indication for deleting all pending map registers */ |
| 4717 | del_all[0] = 1; |
| 4718 | lcm->expired_map_registers = 0; |
| 4719 | return 0; |
| 4720 | } |
| 4721 | else |
| 4722 | { |
| 4723 | /* delete pending map register */ |
| 4724 | return 0; |
| 4725 | } |
| 4726 | } |
| 4727 | return 1; |
| 4728 | } |
| 4729 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4730 | static void |
| 4731 | update_map_register (lisp_cp_main_t * lcm, f64 dt) |
| 4732 | { |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4733 | u32 *to_be_removed = 0, *pmr_index; |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4734 | static f64 time_left = QUICK_MAP_REGISTER_INTERVAL; |
| 4735 | static u64 mreg_sent_counter = 0; |
| 4736 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4737 | pending_map_register_t *pmr; |
| 4738 | u8 del_all = 0; |
| 4739 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4740 | if (!lcm->is_enabled || !lcm->map_registering) |
| 4741 | return; |
| 4742 | |
Filip Tehlar | 7048ff1 | 2017-07-27 08:09:14 +0200 | [diff] [blame] | 4743 | /* *INDENT-OFF* */ |
| 4744 | pool_foreach (pmr, lcm->pending_map_registers_pool, |
| 4745 | ({ |
| 4746 | if (!update_pending_map_register (pmr, dt, &del_all)) |
| 4747 | { |
| 4748 | if (del_all) |
| 4749 | break; |
| 4750 | vec_add1 (to_be_removed, pmr - lcm->pending_map_registers_pool); |
| 4751 | } |
| 4752 | })); |
| 4753 | /* *INDENT-ON* */ |
| 4754 | |
| 4755 | if (del_all) |
| 4756 | { |
| 4757 | /* delete all pending map register messages so they won't |
| 4758 | * trigger another map server election.. */ |
| 4759 | pool_free (lcm->pending_map_registers_pool); |
| 4760 | hash_free (lcm->map_register_messages_by_nonce); |
| 4761 | |
| 4762 | /* ..and trigger registration against next map server (if any) */ |
| 4763 | time_left = 0; |
| 4764 | } |
| 4765 | else |
| 4766 | { |
| 4767 | vec_foreach (pmr_index, to_be_removed) |
| 4768 | pool_put_index (lcm->pending_map_registers_pool, pmr_index[0]); |
| 4769 | } |
| 4770 | |
| 4771 | vec_free (to_be_removed); |
| 4772 | |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4773 | time_left -= dt; |
| 4774 | if (time_left <= 0) |
| 4775 | { |
| 4776 | if (mreg_sent_counter >= QUICK_MAP_REGISTER_MSG_COUNT) |
| 4777 | time_left = MAP_REGISTER_INTERVAL; |
| 4778 | else |
| 4779 | { |
| 4780 | mreg_sent_counter++; |
| 4781 | time_left = QUICK_MAP_REGISTER_INTERVAL; |
| 4782 | } |
| 4783 | send_map_register (lcm, 1 /* want map notify */ ); |
| 4784 | } |
| 4785 | } |
| 4786 | |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4787 | static uword |
| 4788 | send_map_resolver_service (vlib_main_t * vm, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4789 | vlib_node_runtime_t * rt, vlib_frame_t * f) |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4790 | { |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 4791 | u32 *expired = 0; |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4792 | f64 period = 2.0; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4793 | pending_map_request_t *pmr; |
| 4794 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4795 | |
| 4796 | while (1) |
| 4797 | { |
| 4798 | vlib_process_wait_for_event_or_clock (vm, period); |
| 4799 | |
| 4800 | /* currently no signals are expected - just wait for clock */ |
| 4801 | (void) vlib_process_get_events (vm, 0); |
| 4802 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4803 | /* *INDENT-OFF* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4804 | pool_foreach (pmr, lcm->pending_map_requests_pool, |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4805 | ({ |
| 4806 | if (!pmr->to_be_removed) |
| 4807 | update_pending_request (pmr, period); |
| 4808 | })); |
| 4809 | /* *INDENT-ON* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4810 | |
| 4811 | remove_dead_pending_map_requests (lcm); |
Filip Tehlar | 397fd7d | 2016-10-26 14:31:24 +0200 | [diff] [blame] | 4812 | |
| 4813 | update_map_register (lcm, period); |
| 4814 | update_rloc_probing (lcm, period); |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 4815 | |
| 4816 | u64 now = clib_cpu_time_now (); |
| 4817 | |
| 4818 | expired = timing_wheel_advance (&lcm->wheel, now, expired, 0); |
| 4819 | if (vec_len (expired) > 0) |
| 4820 | { |
| 4821 | u32 *mi = 0; |
| 4822 | vec_foreach (mi, expired) |
| 4823 | { |
Filip Tehlar | 809bc74 | 2017-08-14 19:15:36 +0200 | [diff] [blame] | 4824 | process_expired_mapping (lcm, mi[0]); |
Filip Tehlar | 9677a94 | 2016-11-28 10:23:31 +0100 | [diff] [blame] | 4825 | } |
| 4826 | _vec_len (expired) = 0; |
| 4827 | } |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4828 | } |
| 4829 | |
| 4830 | /* unreachable */ |
| 4831 | return 0; |
| 4832 | } |
| 4833 | |
Filip Tehlar | 7eaf0e5 | 2017-03-08 08:46:51 +0100 | [diff] [blame] | 4834 | vnet_api_error_t |
| 4835 | vnet_lisp_stats_enable_disable (u8 enable) |
| 4836 | { |
| 4837 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4838 | |
| 4839 | if (vnet_lisp_enable_disable_status () == 0) |
| 4840 | return VNET_API_ERROR_LISP_DISABLED; |
| 4841 | |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 4842 | if (enable) |
| 4843 | lcm->flags |= LISP_FLAG_STATS_ENABLED; |
| 4844 | else |
| 4845 | lcm->flags &= ~LISP_FLAG_STATS_ENABLED; |
| 4846 | |
Filip Tehlar | 7eaf0e5 | 2017-03-08 08:46:51 +0100 | [diff] [blame] | 4847 | return 0; |
| 4848 | } |
| 4849 | |
| 4850 | u8 |
| 4851 | vnet_lisp_stats_enable_disable_state (void) |
| 4852 | { |
| 4853 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4854 | |
| 4855 | if (vnet_lisp_enable_disable_status () == 0) |
| 4856 | return VNET_API_ERROR_LISP_DISABLED; |
| 4857 | |
Filip Tehlar | 4868ff6 | 2017-03-09 16:48:39 +0100 | [diff] [blame] | 4858 | return lcm->flags & LISP_FLAG_STATS_ENABLED; |
Filip Tehlar | 7eaf0e5 | 2017-03-08 08:46:51 +0100 | [diff] [blame] | 4859 | } |
| 4860 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4861 | /* *INDENT-OFF* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4862 | VLIB_REGISTER_NODE (lisp_retry_service_node,static) = { |
| 4863 | .function = send_map_resolver_service, |
| 4864 | .type = VLIB_NODE_TYPE_PROCESS, |
| 4865 | .name = "lisp-retry-service", |
| 4866 | .process_log2_n_stack_bytes = 16, |
| 4867 | }; |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 4868 | /* *INDENT-ON* */ |
Filip Tehlar | a5abdeb | 2016-07-18 17:35:40 +0200 | [diff] [blame] | 4869 | |
Filip Tehlar | a4980b8 | 2017-09-27 14:32:02 +0200 | [diff] [blame] | 4870 | u32 |
| 4871 | vnet_lisp_set_transport_protocol (u8 protocol) |
| 4872 | { |
| 4873 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4874 | |
| 4875 | if (protocol < LISP_TRANSPORT_PROTOCOL_UDP || |
| 4876 | protocol > LISP_TRANSPORT_PROTOCOL_API) |
| 4877 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 4878 | |
| 4879 | lcm->transport_protocol = protocol; |
| 4880 | return 0; |
| 4881 | } |
| 4882 | |
| 4883 | lisp_transport_protocol_t |
| 4884 | vnet_lisp_get_transport_protocol (void) |
| 4885 | { |
| 4886 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4887 | return lcm->transport_protocol; |
| 4888 | } |
| 4889 | |
Filip Tehlar | 0a8840d | 2017-10-16 05:48:23 -0700 | [diff] [blame] | 4890 | int |
| 4891 | vnet_lisp_enable_disable_xtr_mode (u8 is_enabled) |
| 4892 | { |
| 4893 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4894 | u8 pitr_mode = lcm->flags & LISP_FLAG_PITR_MODE; |
| 4895 | u8 xtr_mode = lcm->flags & LISP_FLAG_XTR_MODE; |
| 4896 | u8 petr_mode = lcm->flags & LISP_FLAG_PETR_MODE; |
| 4897 | |
| 4898 | if (pitr_mode && is_enabled) |
| 4899 | return VNET_API_ERROR_INVALID_ARGUMENT; |
| 4900 | |
| 4901 | if (is_enabled && xtr_mode) |
| 4902 | return 0; |
| 4903 | if (!is_enabled && !xtr_mode) |
| 4904 | return 0; |
| 4905 | |
| 4906 | if (is_enabled) |
| 4907 | { |
| 4908 | if (!petr_mode) |
| 4909 | { |
| 4910 | lisp_cp_register_dst_port (lcm->vlib_main); |
| 4911 | } |
| 4912 | lisp_cp_enable_l2_l3_ifaces (lcm, 1 /* with_default_route */ ); |
| 4913 | lcm->flags |= LISP_FLAG_XTR_MODE; |
| 4914 | } |
| 4915 | else |
| 4916 | { |
| 4917 | if (!petr_mode) |
| 4918 | { |
| 4919 | lisp_cp_unregister_dst_port (lcm->vlib_main); |
| 4920 | } |
| 4921 | lisp_cp_disable_l2_l3_ifaces (lcm); |
| 4922 | lcm->flags &= ~LISP_FLAG_XTR_MODE; |
| 4923 | } |
| 4924 | return 0; |
| 4925 | } |
| 4926 | |
| 4927 | int |
| 4928 | vnet_lisp_enable_disable_pitr_mode (u8 is_enabled) |
| 4929 | { |
| 4930 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4931 | u8 xtr_mode = lcm->flags & LISP_FLAG_XTR_MODE; |
| 4932 | u8 pitr_mode = lcm->flags & LISP_FLAG_PITR_MODE; |
| 4933 | |
| 4934 | if (xtr_mode && is_enabled) |
| 4935 | return VNET_API_ERROR_INVALID_VALUE; |
| 4936 | |
| 4937 | if (is_enabled && pitr_mode) |
| 4938 | return 0; |
| 4939 | if (!is_enabled && !pitr_mode) |
| 4940 | return 0; |
| 4941 | |
| 4942 | if (is_enabled) |
| 4943 | { |
| 4944 | /* create iface, no default route */ |
| 4945 | lisp_cp_enable_l2_l3_ifaces (lcm, 0 /* with_default_route */ ); |
| 4946 | lcm->flags |= LISP_FLAG_PITR_MODE; |
| 4947 | } |
| 4948 | else |
| 4949 | { |
| 4950 | lisp_cp_disable_l2_l3_ifaces (lcm); |
| 4951 | lcm->flags &= ~LISP_FLAG_PITR_MODE; |
| 4952 | } |
| 4953 | return 0; |
| 4954 | } |
| 4955 | |
| 4956 | int |
| 4957 | vnet_lisp_enable_disable_petr_mode (u8 is_enabled) |
| 4958 | { |
| 4959 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4960 | u8 xtr_mode = lcm->flags & LISP_FLAG_XTR_MODE; |
| 4961 | u8 petr_mode = lcm->flags & LISP_FLAG_PETR_MODE; |
| 4962 | |
| 4963 | if (is_enabled && petr_mode) |
| 4964 | return 0; |
| 4965 | if (!is_enabled && !petr_mode) |
| 4966 | return 0; |
| 4967 | |
| 4968 | if (is_enabled) |
| 4969 | { |
| 4970 | if (!xtr_mode) |
| 4971 | { |
| 4972 | lisp_cp_register_dst_port (lcm->vlib_main); |
| 4973 | } |
| 4974 | lcm->flags |= LISP_FLAG_PETR_MODE; |
| 4975 | } |
| 4976 | else |
| 4977 | { |
| 4978 | if (!xtr_mode) |
| 4979 | { |
| 4980 | lisp_cp_unregister_dst_port (lcm->vlib_main); |
| 4981 | } |
| 4982 | lcm->flags &= ~LISP_FLAG_PETR_MODE; |
| 4983 | } |
| 4984 | return 0; |
| 4985 | } |
| 4986 | |
| 4987 | u8 |
| 4988 | vnet_lisp_get_xtr_mode (void) |
| 4989 | { |
| 4990 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4991 | return (lcm->flags & LISP_FLAG_XTR_MODE); |
| 4992 | } |
| 4993 | |
| 4994 | u8 |
| 4995 | vnet_lisp_get_pitr_mode (void) |
| 4996 | { |
| 4997 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 4998 | return (lcm->flags & LISP_FLAG_PITR_MODE); |
| 4999 | } |
| 5000 | |
| 5001 | u8 |
| 5002 | vnet_lisp_get_petr_mode (void) |
| 5003 | { |
| 5004 | lisp_cp_main_t *lcm = vnet_lisp_cp_get_main (); |
| 5005 | return (lcm->flags & LISP_FLAG_PETR_MODE); |
| 5006 | } |
| 5007 | |
Florin Coras | a2157cf | 2016-08-16 21:09:14 +0200 | [diff] [blame] | 5008 | VLIB_INIT_FUNCTION (lisp_cp_init); |
| 5009 | |
| 5010 | /* |
| 5011 | * fd.io coding-style-patch-verification: ON |
| 5012 | * |
| 5013 | * Local Variables: |
| 5014 | * eval: (c-set-style "gnu") |
| 5015 | * End: |
| 5016 | */ |