bgpd/bgp_evpn_private.h

   1 /* BGP EVPN internal definitions
   2  * Copyright (C) 2017 Cumulus Networks, Inc.
   3  *
   4  * This file is part of FRR.
   5  *
   6  * FRR is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * FRR is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with FRR; see the file COPYING.  If not, write to the Free
  18  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19  * 02111-1307, USA.
  20  */
  21
  22 #ifndef _BGP_EVPN_PRIVATE_H
  23 #define _BGP_EVPN_PRIVATE_H
  24
  25 #include "vxlan.h"
  26 #include "zebra.h"
  27
  28 #include "bgpd/bgpd.h"
  29 #include "bgpd/bgp_ecommunity.h"
  30
  31 #define RT_ADDRSTRLEN 28
  32
  33 /* EVPN prefix lengths. This reprsent the sizeof struct prefix_evpn  */
  34 #define EVPN_ROUTE_PREFIXLEN     224
  35
  36 /* EVPN route types. */
  37 typedef enum {
  38         BGP_EVPN_AD_ROUTE = 1,    /* Ethernet Auto-Discovery (A-D) route */
  39         BGP_EVPN_MAC_IP_ROUTE,    /* MAC/IP Advertisement route */
  40         BGP_EVPN_IMET_ROUTE,      /* Inclusive Multicast Ethernet Tag route */
  41         BGP_EVPN_ES_ROUTE,      /* Ethernet Segment route */
  42         BGP_EVPN_IP_PREFIX_ROUTE, /* IP Prefix route */
  43 } bgp_evpn_route_type;
  44
  45 /*
  46  * Hash table of EVIs. Right now, the only type of EVI supported is with
  47  * VxLAN encapsulation, hence each EVI corresponds to a L2 VNI.
  48  * The VNIs are not "created" through BGP but through some other interface
  49  * on the system. This table stores VNIs that BGP comes to know as present
  50  * on the system (through interaction with zebra) as well as pre-configured
  51  * VNIs (which need to be defined in the system to become "live").
  52  */
  53 struct bgpevpn {
  54         vni_t vni;
  55         vrf_id_t tenant_vrf_id;
  56         uint32_t flags;
  57 #define VNI_FLAG_CFGD              0x1  /* VNI is user configured */
  58 #define VNI_FLAG_LIVE              0x2  /* VNI is "live" */
  59 #define VNI_FLAG_RD_CFGD           0x4  /* RD is user configured. */
  60 #define VNI_FLAG_IMPRT_CFGD        0x8  /* Import RT is user configured */
  61 #define VNI_FLAG_EXPRT_CFGD        0x10 /* Export RT is user configured */
  62 #define VNI_FLAG_USE_TWO_LABELS    0x20 /* Attach both L2-VNI and L3-VNI if
  63                                            needed for this VPN */
  64
  65         struct bgp *bgp_vrf; /* back pointer to the vrf instance */
  66
  67                                            /* Flag to indicate if we are
  68                                             * advertising the g/w mac ip for
  69                                             * this VNI*/
  70         uint8_t advertise_gw_macip;
  71
  72         /* Flag to indicate if we are
  73          * advertising subnet for this VNI */
  74         uint8_t advertise_subnet;
  75
  76         /* Id for deriving the RD
  77          * automatically for this VNI */
  78         uint16_t rd_id;
  79
  80         /* RD for this VNI. */
  81         struct prefix_rd prd;
  82
  83         /* Route type 3 field */
  84         struct in_addr originator_ip;
  85
  86         /* Import and Export RTs. */
  87         struct list *import_rtl;
  88         struct list *export_rtl;
  89
  90         /* Route table for EVPN routes for
  91          * this VNI. */
  92         struct bgp_table *route_table;
  93
  94         QOBJ_FIELDS
  95 };
  96
  97 DECLARE_QOBJ_TYPE(bgpevpn)
  98
  99 struct evpnes {
 100
 101         /* Ethernet Segment Identifier */
 102         esi_t esi;
 103
 104         /* es flags */
 105         uint16_t flags;
 106 #define EVPNES_LOCAL    0x01
 107 #define EVPNES_REMOTE   0x02
 108
 109         /*
 110          * Id for deriving the RD
 111          * automatically for this ESI
 112          */
 113         uint16_t rd_id;
 114
 115         /* RD for this VNI. */
 116         struct prefix_rd prd;
 117
 118         /* originator ip address  */
 119         struct ipaddr originator_ip;
 120
 121         /* list of VTEPs in the same site */
 122         struct list *vtep_list;
 123
 124         /*
 125          * Route table for EVPN routes for
 126          * this ESI. - type4 routes
 127          */
 128         struct bgp_table *route_table;
 129
 130         QOBJ_FIELDS
 131 };
 132
 133 DECLARE_QOBJ_TYPE(evpnes)
 134
 135 /* Mapping of Import RT to VNIs.
 136  * The Import RTs of all VNIs are maintained in a hash table with each
 137  * RT linking to all VNIs that will import routes matching this RT.
 138  */
 139 struct irt_node {
 140         /* RT */
 141         struct ecommunity_val rt;
 142
 143         /* List of VNIs importing routes matching this RT. */
 144         struct list *vnis;
 145 };
 146
 147 /* Mapping of Import RT to VRFs.
 148  * The Import RTs of all VRFss are maintained in a hash table with each
 149  * RT linking to all VRFs that will import routes matching this RT.
 150  */
 151 struct vrf_irt_node {
 152         /* RT */
 153         struct ecommunity_val rt;
 154
 155         /* List of VNIs importing routes matching this RT. */
 156         struct list *vrfs;
 157 };
 158
 159
 160 #define RT_TYPE_IMPORT 1
 161 #define RT_TYPE_EXPORT 2
 162 #define RT_TYPE_BOTH   3
 163
 164 #define EVPN_DAD_DEFAULT_TIME 180 /* secs */
 165 #define EVPN_DAD_DEFAULT_MAX_MOVES 5 /* default from RFC 7432 */
 166 #define EVPN_DAD_DEFAULT_AUTO_RECOVERY_TIME 1800 /* secs */
 167
 168 struct bgp_evpn_info {
 169         /* enable disable dup detect */
 170         bool dup_addr_detect;
 171
 172         /* Detection time(M) */
 173         int dad_time;
 174         /* Detection max moves(N) */
 175         uint32_t dad_max_moves;
 176         /* Permanent freeze */
 177         bool dad_freeze;
 178         /* Recovery time */
 179         uint32_t dad_freeze_time;
 180 };
 181
 182 static inline int is_vrf_rd_configured(struct bgp *bgp_vrf)
 183 {
 184         return (CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_RD_CFGD));
 185 }
 186
 187 static inline int bgp_evpn_vrf_rd_matches_existing(struct bgp *bgp_vrf,
 188                                                    struct prefix_rd *prd)
 189 {
 190         return (memcmp(&bgp_vrf->vrf_prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
 191 }
 192
 193 static inline vni_t bgpevpn_get_l3vni(struct bgpevpn *vpn)
 194 {
 195         return vpn->bgp_vrf ? vpn->bgp_vrf->l3vni : 0;
 196 }
 197
 198 static inline void bgpevpn_get_rmac(struct bgpevpn *vpn, struct ethaddr *rmac)
 199 {
 200         memset(rmac, 0, sizeof(struct ethaddr));
 201         if (!vpn->bgp_vrf)
 202                 return;
 203         memcpy(rmac, &vpn->bgp_vrf->rmac, sizeof(struct ethaddr));
 204 }
 205
 206 static inline struct list *bgpevpn_get_vrf_export_rtl(struct bgpevpn *vpn)
 207 {
 208         if (!vpn->bgp_vrf)
 209                 return NULL;
 210
 211         return vpn->bgp_vrf->vrf_export_rtl;
 212 }
 213
 214 static inline struct list *bgpevpn_get_vrf_import_rtl(struct bgpevpn *vpn)
 215 {
 216         if (!vpn->bgp_vrf)
 217                 return NULL;
 218
 219         return vpn->bgp_vrf->vrf_import_rtl;
 220 }
 221
 222 static inline void bgpevpn_unlink_from_l3vni(struct bgpevpn *vpn)
 223 {
 224         /* bail if vpn is not associated to bgp_vrf */
 225         if (!vpn->bgp_vrf)
 226                 return;
 227
 228         UNSET_FLAG(vpn->flags, VNI_FLAG_USE_TWO_LABELS);
 229         listnode_delete(vpn->bgp_vrf->l2vnis, vpn);
 230
 231         /* remove the backpointer to the vrf instance */
 232         vpn->bgp_vrf = NULL;
 233 }
 234
 235 static inline void bgpevpn_link_to_l3vni(struct bgpevpn *vpn)
 236 {
 237         struct bgp *bgp_vrf = NULL;
 238
 239         /* bail if vpn is already associated to vrf */
 240         if (vpn->bgp_vrf)
 241                 return;
 242
 243         bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
 244         if (!bgp_vrf)
 245                 return;
 246
 247         /* associate the vpn to the bgp_vrf instance */
 248         vpn->bgp_vrf = bgp_vrf;
 249         listnode_add_sort(bgp_vrf->l2vnis, vpn);
 250
 251         /* check if we are advertising two labels for this vpn */
 252         if (!CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY))
 253                 SET_FLAG(vpn->flags, VNI_FLAG_USE_TWO_LABELS);
 254 }
 255
 256 static inline int is_vni_configured(struct bgpevpn *vpn)
 257 {
 258         return (CHECK_FLAG(vpn->flags, VNI_FLAG_CFGD));
 259 }
 260
 261 static inline int is_vni_live(struct bgpevpn *vpn)
 262 {
 263         return (CHECK_FLAG(vpn->flags, VNI_FLAG_LIVE));
 264 }
 265
 266 static inline int is_rd_configured(struct bgpevpn *vpn)
 267 {
 268         return (CHECK_FLAG(vpn->flags, VNI_FLAG_RD_CFGD));
 269 }
 270
 271 static inline int bgp_evpn_rd_matches_existing(struct bgpevpn *vpn,
 272                                                struct prefix_rd *prd)
 273 {
 274         return (memcmp(&vpn->prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
 275 }
 276
 277 static inline int is_import_rt_configured(struct bgpevpn *vpn)
 278 {
 279         return (CHECK_FLAG(vpn->flags, VNI_FLAG_IMPRT_CFGD));
 280 }
 281
 282 static inline int is_export_rt_configured(struct bgpevpn *vpn)
 283 {
 284         return (CHECK_FLAG(vpn->flags, VNI_FLAG_EXPRT_CFGD));
 285 }
 286
 287 static inline int is_vni_param_configured(struct bgpevpn *vpn)
 288 {
 289         return (is_rd_configured(vpn) || is_import_rt_configured(vpn)
 290                 || is_export_rt_configured(vpn));
 291 }
 292
 293 static inline void encode_es_rt_extcomm(struct ecommunity_val *eval,
 294                                         struct ethaddr *mac)
 295 {
 296         memset(eval, 0, sizeof(struct ecommunity_val));
 297         eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
 298         eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ES_IMPORT_RT;
 299         memcpy(&eval->val[2], mac, ETH_ALEN);
 300 }
 301
 302 static inline void encode_rmac_extcomm(struct ecommunity_val *eval,
 303                                        struct ethaddr *rmac)
 304 {
 305         memset(eval, 0, sizeof(*eval));
 306         eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
 307         eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC;
 308         memcpy(&eval->val[2], rmac, ETH_ALEN);
 309 }
 310
 311 static inline void encode_default_gw_extcomm(struct ecommunity_val *eval)
 312 {
 313         memset(eval, 0, sizeof(*eval));
 314         eval->val[0] = ECOMMUNITY_ENCODE_OPAQUE;
 315         eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_DEF_GW;
 316 }
 317
 318 static inline void encode_mac_mobility_extcomm(int static_mac, uint32_t seq,
 319                                                struct ecommunity_val *eval)
 320 {
 321         memset(eval, 0, sizeof(*eval));
 322         eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
 323         eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY;
 324         if (static_mac)
 325                 eval->val[2] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY;
 326         eval->val[4] = (seq >> 24) & 0xff;
 327         eval->val[5] = (seq >> 16) & 0xff;
 328         eval->val[6] = (seq >> 8) & 0xff;
 329         eval->val[7] = seq & 0xff;
 330 }
 331
 332 static inline void encode_na_flag_extcomm(struct ecommunity_val *eval,
 333                                           uint8_t na_flag)
 334 {
 335         memset(eval, 0, sizeof(*eval));
 336         eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
 337         eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ND;
 338         if (na_flag)
 339                 eval->val[2] |= ECOMMUNITY_EVPN_SUBTYPE_ND_ROUTER_FLAG;
 340 }
 341
 342 static inline void ip_prefix_from_type5_prefix(struct prefix_evpn *evp,
 343                                                struct prefix *ip)
 344 {
 345         memset(ip, 0, sizeof(struct prefix));
 346         if (is_evpn_prefix_ipaddr_v4(evp)) {
 347                 ip->family = AF_INET;
 348                 ip->prefixlen = evp->prefix.prefix_addr.ip_prefix_length;
 349                 memcpy(&(ip->u.prefix4), &(evp->prefix.prefix_addr.ip.ip),
 350                        IPV4_MAX_BYTELEN);
 351         } else if (is_evpn_prefix_ipaddr_v6(evp)) {
 352                 ip->family = AF_INET6;
 353                 ip->prefixlen = evp->prefix.prefix_addr.ip_prefix_length;
 354                 memcpy(&(ip->u.prefix6), &(evp->prefix.prefix_addr.ip.ip),
 355                        IPV6_MAX_BYTELEN);
 356         }
 357 }
 358
 359 static inline int is_evpn_prefix_default(const struct prefix *evp)
 360 {
 361         if (evp->family != AF_EVPN)
 362                 return 0;
 363
 364         return ((evp->u.prefix_evpn.prefix_addr.ip_prefix_length  == 0) ?
 365                 1 : 0);
 366 }
 367
 368 static inline void ip_prefix_from_type2_prefix(struct prefix_evpn *evp,
 369                                                struct prefix *ip)
 370 {
 371         memset(ip, 0, sizeof(struct prefix));
 372         if (is_evpn_prefix_ipaddr_v4(evp)) {
 373                 ip->family = AF_INET;
 374                 ip->prefixlen = IPV4_MAX_BITLEN;
 375                 memcpy(&(ip->u.prefix4), &(evp->prefix.macip_addr.ip.ip),
 376                        IPV4_MAX_BYTELEN);
 377         } else if (is_evpn_prefix_ipaddr_v6(evp)) {
 378                 ip->family = AF_INET6;
 379                 ip->prefixlen = IPV6_MAX_BITLEN;
 380                 memcpy(&(ip->u.prefix6), &(evp->prefix.macip_addr.ip.ip),
 381                        IPV6_MAX_BYTELEN);
 382         }
 383 }
 384
 385 static inline void ip_prefix_from_evpn_prefix(struct prefix_evpn *evp,
 386                                               struct prefix *ip)
 387 {
 388         if (evp->prefix.route_type == BGP_EVPN_MAC_IP_ROUTE)
 389                 ip_prefix_from_type2_prefix(evp, ip);
 390         else if (evp->prefix.route_type == BGP_EVPN_IP_PREFIX_ROUTE)
 391                 ip_prefix_from_type5_prefix(evp, ip);
 392 }
 393
 394 static inline void build_evpn_type2_prefix(struct prefix_evpn *p,
 395                                            struct ethaddr *mac,
 396                                            struct ipaddr *ip)
 397 {
 398         memset(p, 0, sizeof(struct prefix_evpn));
 399         p->family = AF_EVPN;
 400         p->prefixlen = EVPN_ROUTE_PREFIXLEN;
 401         p->prefix.route_type = BGP_EVPN_MAC_IP_ROUTE;
 402         memcpy(&p->prefix.macip_addr.mac.octet, mac->octet, ETH_ALEN);
 403         p->prefix.macip_addr.ip.ipa_type = IPADDR_NONE;
 404         if (ip)
 405                 memcpy(&p->prefix.macip_addr.ip, ip, sizeof(*ip));
 406 }
 407
 408 static inline void build_type5_prefix_from_ip_prefix(struct prefix_evpn *evp,
 409                                                      struct prefix *ip_prefix)
 410 {
 411         struct ipaddr ip;
 412
 413         memset(&ip, 0, sizeof(struct ipaddr));
 414         if (ip_prefix->family == AF_INET) {
 415                 ip.ipa_type = IPADDR_V4;
 416                 memcpy(&ip.ipaddr_v4, &ip_prefix->u.prefix4,
 417                        sizeof(struct in_addr));
 418         } else {
 419                 ip.ipa_type = IPADDR_V6;
 420                 memcpy(&ip.ipaddr_v6, &ip_prefix->u.prefix6,
 421                        sizeof(struct in6_addr));
 422         }
 423
 424         memset(evp, 0, sizeof(struct prefix_evpn));
 425         evp->family = AF_EVPN;
 426         evp->prefixlen = EVPN_ROUTE_PREFIXLEN;
 427         evp->prefix.route_type = BGP_EVPN_IP_PREFIX_ROUTE;
 428         evp->prefix.prefix_addr.ip_prefix_length = ip_prefix->prefixlen;
 429         evp->prefix.prefix_addr.ip.ipa_type = ip.ipa_type;
 430         memcpy(&evp->prefix.prefix_addr.ip, &ip, sizeof(struct ipaddr));
 431 }
 432
 433 static inline void build_evpn_type3_prefix(struct prefix_evpn *p,
 434                                            struct in_addr originator_ip)
 435 {
 436         memset(p, 0, sizeof(struct prefix_evpn));
 437         p->family = AF_EVPN;
 438         p->prefixlen = EVPN_ROUTE_PREFIXLEN;
 439         p->prefix.route_type = BGP_EVPN_IMET_ROUTE;
 440         p->prefix.imet_addr.ip.ipa_type = IPADDR_V4;
 441         p->prefix.imet_addr.ip.ipaddr_v4 = originator_ip;
 442 }
 443
 444 static inline void build_evpn_type4_prefix(struct prefix_evpn *p,
 445                                            esi_t *esi,
 446                                            struct in_addr originator_ip)
 447 {
 448         memset(p, 0, sizeof(struct prefix_evpn));
 449         p->family = AF_EVPN;
 450         p->prefixlen = EVPN_ROUTE_PREFIXLEN;
 451         p->prefix.route_type = BGP_EVPN_ES_ROUTE;
 452         p->prefix.es_addr.ip_prefix_length = IPV4_MAX_BITLEN;
 453         p->prefix.es_addr.ip.ipa_type = IPADDR_V4;
 454         p->prefix.es_addr.ip.ipaddr_v4 = originator_ip;
 455         memcpy(&p->prefix.es_addr.esi, esi, sizeof(esi_t));
 456 }
 457
 458 static inline int evpn_default_originate_set(struct bgp *bgp, afi_t afi,
 459                                              safi_t safi)
 460 {
 461         if (afi == AFI_IP &&
 462             CHECK_FLAG(bgp->af_flags[AFI_L2VPN][SAFI_EVPN],
 463                        BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4))
 464                 return 1;
 465         else if (afi == AFI_IP6 &&
 466                  CHECK_FLAG(bgp->af_flags[AFI_L2VPN][SAFI_EVPN],
 467                             BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6))
 468                 return 1;
 469         return 0;
 470 }
 471
 472 static inline void es_get_system_mac(esi_t *esi,
 473                                      struct ethaddr *mac)
 474 {
 475         /*
 476          * for type-1 and type-3 ESIs,
 477          * the system mac starts at val[1]
 478          */
 479         memcpy(mac, &esi->val[1], ETH_ALEN);
 480 }
 481
 482 static inline int is_es_local(struct evpnes *es)
 483 {
 484         return CHECK_FLAG(es->flags, EVPNES_LOCAL) ? 1 : 0;
 485 }
 486
 487 extern void evpn_rt_delete_auto(struct bgp *, vni_t, struct list *);
 488 extern void bgp_evpn_configure_export_rt_for_vrf(struct bgp *bgp_vrf,
 489                                                  struct ecommunity *ecomadd);
 490 extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp *bgp_vrf,
 491                                                    struct ecommunity *ecomdel);
 492 extern void bgp_evpn_configure_import_rt_for_vrf(struct bgp *bgp_vrf,
 493                                                  struct ecommunity *ecomadd);
 494 extern void bgp_evpn_unconfigure_import_rt_for_vrf(struct bgp *bgp_vrf,
 495                                                    struct ecommunity *ecomdel);
 496 extern int bgp_evpn_handle_export_rt_change(struct bgp *bgp,
 497                                             struct bgpevpn *vpn);
 498 extern void bgp_evpn_handle_autort_change(struct bgp *bgp);
 499 extern void bgp_evpn_handle_vrf_rd_change(struct bgp *bgp_vrf, int withdraw);
 500 extern void bgp_evpn_handle_rd_change(struct bgp *bgp, struct bgpevpn *vpn,
 501                                       int withdraw);
 502 extern int bgp_evpn_install_routes(struct bgp *bgp, struct bgpevpn *vpn);
 503 extern int bgp_evpn_uninstall_routes(struct bgp *bgp, struct bgpevpn *vpn);
 504 extern void bgp_evpn_map_vrf_to_its_rts(struct bgp *bgp_vrf);
 505 extern void bgp_evpn_unmap_vrf_from_its_rts(struct bgp *bgp_vrf);
 506 extern void bgp_evpn_map_vni_to_its_rts(struct bgp *bgp, struct bgpevpn *vpn);
 507 extern void bgp_evpn_unmap_vni_from_its_rts(struct bgp *bgp,
 508                                             struct bgpevpn *vpn);
 509 extern void bgp_evpn_derive_auto_rt_import(struct bgp *bgp,
 510                                            struct bgpevpn *vpn);
 511 extern void bgp_evpn_derive_auto_rt_export(struct bgp *bgp,
 512                                            struct bgpevpn *vpn);
 513 extern void bgp_evpn_derive_auto_rd(struct bgp *bgp, struct bgpevpn *vpn);
 514 extern void bgp_evpn_derive_auto_rd_for_vrf(struct bgp *bgp);
 515 extern struct bgpevpn *bgp_evpn_lookup_vni(struct bgp *bgp, vni_t vni);
 516 extern struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
 517                                     struct in_addr originator_ip,
 518                                     vrf_id_t tenant_vrf_id);
 519 extern void bgp_evpn_free(struct bgp *bgp, struct bgpevpn *vpn);
 520 extern struct evpnes *bgp_evpn_lookup_es(struct bgp *bgp, esi_t *esi);
 521 extern struct evpnes *bgp_evpn_es_new(struct bgp *bgp, esi_t *esi,
 522                                       struct ipaddr *originator_ip);
 523 extern void bgp_evpn_es_free(struct bgp *bgp, struct evpnes *es);
 524 extern bool bgp_evpn_lookup_l3vni_l2vni_table(vni_t vni);
 525 #endif /* _BGP_EVPN_PRIVATE_H */