diff options
Diffstat (limited to 'bgpd/bgp_evpn.h')
| -rw-r--r-- | bgpd/bgp_evpn.h | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/bgpd/bgp_evpn.h b/bgpd/bgp_evpn.h new file mode 100644 index 0000000..5547446 --- /dev/null +++ b/bgpd/bgp_evpn.h @@ -0,0 +1,210 @@ +// 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->vrfleak || !ri->extra->vrfleak->parent) + return NULL; + + /* Determine parent recursively */ + for (parent_ri = ri->extra->vrfleak->parent; + parent_ri->extra && parent_ri->extra->vrfleak && + parent_ri->extra->vrfleak->parent; + parent_ri = parent_ri->extra->vrfleak->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->vrfleak || !pi->extra->vrfleak->parent) + return true; + + parent_pi = (struct bgp_path_info *)pi->extra->vrfleak->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 void +bgp_reimport_evpn_routes_upon_macvrf_soo_change(struct bgp *bgp, + struct ecommunity *old_soo, + struct ecommunity *new_soo); +extern void bgp_reimport_evpn_routes_upon_martian_change( + struct bgp *bgp, enum bgp_martian_type martian_type, void *old_martian, + void *new_martian); +extern void +bgp_filter_evpn_routes_upon_martian_change(struct bgp *bgp, + enum bgp_martian_type martian_type); +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 */ |