// SPDX-License-Identifier: GPL-2.0-or-later /* E-VPN header for packet handling * Copyright (C) 2016 6WIND */ #ifndef _QUAGGA_BGP_EVPN_H #define _QUAGGA_BGP_EVPN_H #include "vxlan.h" #include "bgpd.h" #define EVPN_ROUTE_STRLEN 200 /* Must be >> MAC + IPv6 strings. */ #define EVPN_AUTORT_VXLAN 0x10000000 #define EVPN_ENABLED(bgp) (bgp)->advertise_all_vni static inline int is_evpn_enabled(void) { struct bgp *bgp = NULL; bgp = bgp_get_evpn(); return bgp ? EVPN_ENABLED(bgp) : 0; } static inline int advertise_type5_routes(struct bgp *bgp_vrf, afi_t afi) { if (!bgp_vrf->l3vni) return 0; if ((afi == AFI_IP) && ((CHECK_FLAG(bgp_vrf->af_flags[AFI_L2VPN][SAFI_EVPN], BGP_L2VPN_EVPN_ADV_IPV4_UNICAST)) || (CHECK_FLAG(bgp_vrf->af_flags[AFI_L2VPN][SAFI_EVPN], BGP_L2VPN_EVPN_ADV_IPV4_UNICAST_GW_IP)))) return 1; if ((afi == AFI_IP6) && ((CHECK_FLAG(bgp_vrf->af_flags[AFI_L2VPN][SAFI_EVPN], BGP_L2VPN_EVPN_ADV_IPV6_UNICAST)) || (CHECK_FLAG(bgp_vrf->af_flags[AFI_L2VPN][SAFI_EVPN], BGP_L2VPN_EVPN_ADV_IPV6_UNICAST_GW_IP)))) return 1; return 0; } /* Flag if the route's parent is a EVPN route. */ static inline struct bgp_path_info * get_route_parent_evpn(struct bgp_path_info *ri) { struct bgp_path_info *parent_ri; /* If not imported (or doesn't have a parent), bail. */ if (ri->sub_type != BGP_ROUTE_IMPORTED || !ri->extra || !ri->extra->parent) return NULL; /* Determine parent recursively */ for (parent_ri = ri->extra->parent; parent_ri->extra && parent_ri->extra->parent; parent_ri = parent_ri->extra->parent) ; return parent_ri; } /* Flag if the route's parent is a EVPN route. */ static inline int is_route_parent_evpn(struct bgp_path_info *ri) { struct bgp_path_info *parent_ri; struct bgp_table *table; struct bgp_dest *dest; parent_ri = get_route_parent_evpn(ri); if (!parent_ri) return 0; /* See if of family L2VPN/EVPN */ dest = parent_ri->net; if (!dest) return 0; table = bgp_dest_table(dest); if (table && table->afi == AFI_L2VPN && table->safi == SAFI_EVPN) return 1; return 0; } /* Flag if the route path's family is EVPN. */ static inline bool is_pi_family_evpn(struct bgp_path_info *pi) { return is_pi_family_matching(pi, AFI_L2VPN, SAFI_EVPN); } /* Flag if the route is injectable into EVPN. This would be either a * non-imported route or a non-EVPN imported route. */ static inline bool is_route_injectable_into_evpn(struct bgp_path_info *pi) { struct bgp_path_info *parent_pi; struct bgp_table *table; struct bgp_dest *dest; if (pi->sub_type != BGP_ROUTE_IMPORTED || !pi->extra || !pi->extra->parent) return true; parent_pi = (struct bgp_path_info *)pi->extra->parent; dest = parent_pi->net; if (!dest) return true; table = bgp_dest_table(dest); if (table && table->afi == AFI_L2VPN && table->safi == SAFI_EVPN) return false; return true; } static inline bool evpn_resolve_overlay_index(void) { struct bgp *bgp = NULL; bgp = bgp_get_evpn(); return bgp ? bgp->resolve_overlay_index : false; } extern void bgp_evpn_advertise_type5_route(struct bgp *bgp_vrf, const struct prefix *p, struct attr *src_attr, afi_t afi, safi_t safi); extern void bgp_evpn_withdraw_type5_route(struct bgp *bgp_vrf, const struct prefix *p, afi_t afi, safi_t safi); extern void bgp_evpn_withdraw_type5_routes(struct bgp *bgp_vrf, afi_t afi, safi_t safi); extern void bgp_evpn_advertise_type5_routes(struct bgp *bgp_vrf, afi_t afi, safi_t safi); extern void bgp_evpn_vrf_delete(struct bgp *bgp_vrf); extern void bgp_evpn_handle_router_id_update(struct bgp *bgp, int withdraw); extern char *bgp_evpn_label2str(mpls_label_t *label, uint32_t num_labels, char *buf, int len); extern void bgp_evpn_route2json(const struct prefix_evpn *p, json_object *json); extern void bgp_evpn_encode_prefix(struct stream *s, const struct prefix *p, const struct prefix_rd *prd, mpls_label_t *label, uint32_t num_labels, struct attr *attr, bool addpath_capable, uint32_t addpath_tx_id); extern int bgp_nlri_parse_evpn(struct peer *peer, struct attr *attr, struct bgp_nlri *packet, bool withdraw); extern int bgp_evpn_import_route(struct bgp *bgp, afi_t afi, safi_t safi, const struct prefix *p, struct bgp_path_info *ri); extern int bgp_evpn_unimport_route(struct bgp *bgp, afi_t afi, safi_t safi, const struct prefix *p, struct bgp_path_info *ri); extern int bgp_filter_evpn_routes_upon_martian_nh_change(struct bgp *bgp); extern int bgp_evpn_local_macip_del(struct bgp *bgp, vni_t vni, struct ethaddr *mac, struct ipaddr *ip, int state); extern int bgp_evpn_local_macip_add(struct bgp *bgp, vni_t vni, struct ethaddr *mac, struct ipaddr *ip, uint8_t flags, uint32_t seq, esi_t *esi); extern int bgp_evpn_local_l3vni_add(vni_t vni, vrf_id_t vrf_id, struct ethaddr *rmac, struct ethaddr *vrr_rmac, struct in_addr originator_ip, int filter, ifindex_t svi_ifindex, bool is_anycast_mac); extern int bgp_evpn_local_l3vni_del(vni_t vni, vrf_id_t vrf_id); extern int bgp_evpn_local_vni_del(struct bgp *bgp, vni_t vni); extern int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni, struct in_addr originator_ip, vrf_id_t tenant_vrf_id, struct in_addr mcast_grp, ifindex_t svi_ifindex); extern void bgp_evpn_flood_control_change(struct bgp *bgp); extern void bgp_evpn_cleanup_on_disable(struct bgp *bgp); extern void bgp_evpn_cleanup(struct bgp *bgp); extern void bgp_evpn_init(struct bgp *bgp); extern int bgp_evpn_get_type5_prefixlen(const struct prefix *pfx); extern bool bgp_evpn_is_prefix_nht_supported(const struct prefix *pfx); extern void update_advertise_vrf_routes(struct bgp *bgp_vrf); extern void bgp_evpn_show_remote_ip_hash(struct hash_bucket *bucket, void *args); extern void bgp_evpn_show_vni_svi_hash(struct hash_bucket *bucket, void *args); extern bool bgp_evpn_is_gateway_ip_resolved(struct bgp_nexthop_cache *bnc); extern void bgp_evpn_handle_resolve_overlay_index_set(struct hash_bucket *bucket, void *arg); extern void bgp_evpn_handle_resolve_overlay_index_unset(struct hash_bucket *bucket, void *arg); extern mpls_label_t *bgp_evpn_path_info_labels_get_l3vni(mpls_label_t *labels, uint32_t num_labels); extern vni_t bgp_evpn_path_info_get_l3vni(const struct bgp_path_info *pi); extern bool bgp_evpn_mpath_has_dvni(const struct bgp *bgp_vrf, struct bgp_path_info *mpinfo); #endif /* _QUAGGA_BGP_EVPN_H */