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Diffstat (limited to 'zebra/zebra_evpn.h')
| -rw-r--r-- | zebra/zebra_evpn.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/zebra/zebra_evpn.h b/zebra/zebra_evpn.h new file mode 100644 index 0000000..2c84d23 --- /dev/null +++ b/zebra/zebra_evpn.h @@ -0,0 +1,221 @@ +/* + * Zebra EVPN Data structures and definitions + * These are "internal" to this function. + * Copyright (C) 2016, 2017 Cumulus Networks, Inc. + * Copyright (C) 2020 Volta Networks. + * + * This file is part of FRR. + * + * FRR is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * FRR is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with FRR; see the file COPYING. If not, write to the Free + * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +#ifndef _ZEBRA_EVPN_H +#define _ZEBRA_EVPN_H + +#include <zebra.h> + +#include "if.h" +#include "linklist.h" +#include "bitfield.h" + +#include "zebra/zebra_l2.h" +#include "zebra/interface.h" + +#ifdef __cplusplus +extern "C" { +#endif + +RB_HEAD(zebra_es_evi_rb_head, zebra_evpn_es_evi); +RB_PROTOTYPE(zebra_es_evi_rb_head, zebra_evpn_es_evi, rb_node, + zebra_es_evi_rb_cmp); + +/* Private Structure to pass callback data for hash iterator */ +struct zebra_evpn_show { + struct vty *vty; + json_object *json; + struct zebra_vrf *zvrf; + bool use_json; +}; + +/* + * VTEP info + * + * Right now, this just has each remote VTEP's IP address. + */ +struct zebra_vtep { + /* Remote IP. */ + /* NOTE: Can only be IPv4 right now. */ + struct in_addr vtep_ip; + /* Flood mode (one of enum vxlan_flood_control) based on the PMSI + * tunnel type advertised by the remote VTEP + */ + int flood_control; + + /* Links. */ + struct zebra_vtep *next; + struct zebra_vtep *prev; +}; + +/* + * VNI hash table + * + * Contains information pertaining to a VNI: + * - the list of remote VTEPs (with this VNI) + */ +struct zebra_evpn { + /* VNI - key */ + vni_t vni; + + /* ES flags */ + uint32_t flags; +#define ZEVPN_READY_FOR_BGP (1 << 0) /* ready to be sent to BGP */ + + /* Flag for advertising gw macip */ + uint8_t advertise_gw_macip; + + /* Flag for advertising svi macip */ + uint8_t advertise_svi_macip; + + /* Flag for advertising gw macip */ + uint8_t advertise_subnet; + + /* Corresponding VxLAN interface. */ + struct interface *vxlan_if; + + /* Corresponding SVI interface. */ + struct interface *svi_if; + + /* List of remote VTEPs */ + struct zebra_vtep *vteps; + + /* Local IP */ + struct in_addr local_vtep_ip; + + /* PIM-SM MDT group for BUM flooding */ + struct in_addr mcast_grp; + + /* tenant VRF, if any */ + vrf_id_t vrf_id; + + /* List of local or remote MAC */ + struct hash *mac_table; + + /* List of local or remote neighbors (MAC+IP) */ + struct hash *neigh_table; + + /* RB tree of ES-EVIs */ + struct zebra_es_evi_rb_head es_evi_rb_tree; + + /* List of local ESs */ + struct list *local_es_evi_list; +}; + +/* for parsing evpn and vni contexts */ +struct zebra_from_svi_param { + struct interface *br_if; + struct interface *svi_if; + struct zebra_if *zif; + uint8_t bridge_vlan_aware; + vlanid_t vid; +}; + +struct interface *zvni_map_to_svi(vlanid_t vid, struct interface *br_if); + +static inline struct interface *zevpn_map_to_svi(struct zebra_evpn *zevpn) +{ + struct interface *ifp; + struct zebra_if *zif = NULL; + struct zebra_l2info_vxlan zl2_info; + + ifp = zevpn->vxlan_if; + if (!ifp) + return NULL; + zif = ifp->info; + if (!zif) + return NULL; + + /* If down or not mapped to a bridge, we're done. */ + if (!if_is_operative(ifp) || !zif->brslave_info.br_if) + return NULL; + zl2_info = zif->l2info.vxl; + return zvni_map_to_svi(zl2_info.access_vlan, zif->brslave_info.br_if); +} + +int advertise_gw_macip_enabled(struct zebra_evpn *zevpn); +int advertise_svi_macip_enabled(struct zebra_evpn *zevpn); +void zebra_evpn_print(struct zebra_evpn *zevpn, void **ctxt); +void zebra_evpn_print_hash(struct hash_bucket *bucket, void *ctxt[]); +void zebra_evpn_print_hash_detail(struct hash_bucket *bucket, void *data); +int zebra_evpn_add_macip_for_intf(struct interface *ifp, + struct zebra_evpn *zevpn); +int zebra_evpn_del_macip_for_intf(struct interface *ifp, + struct zebra_evpn *zevpn); +int zebra_evpn_advertise_subnet(struct zebra_evpn *zevpn, struct interface *ifp, + int advertise); +int zebra_evpn_gw_macip_add(struct interface *ifp, struct zebra_evpn *zevpn, + struct ethaddr *macaddr, struct ipaddr *ip); +int zebra_evpn_gw_macip_del(struct interface *ifp, struct zebra_evpn *zevpn, + struct ipaddr *ip); +void zebra_evpn_gw_macip_del_for_evpn_hash(struct hash_bucket *bucket, + void *ctxt); +void zebra_evpn_gw_macip_add_for_evpn_hash(struct hash_bucket *bucket, + void *ctxt); +void zebra_evpn_svi_macip_del_for_evpn_hash(struct hash_bucket *bucket, + void *ctxt); +struct zebra_evpn *zebra_evpn_map_vlan(struct interface *ifp, + struct interface *br_if, vlanid_t vid); +struct zebra_evpn *zebra_evpn_from_svi(struct interface *ifp, + struct interface *br_if); +struct interface *zebra_evpn_map_to_macvlan(struct interface *br_if, + struct interface *svi_if); +void zebra_evpn_install_mac_hash(struct hash_bucket *bucket, void *ctxt); +void zebra_evpn_read_mac_neigh(struct zebra_evpn *zevpn, struct interface *ifp); +unsigned int zebra_evpn_hash_keymake(const void *p); +bool zebra_evpn_hash_cmp(const void *p1, const void *p2); +int zebra_evpn_list_cmp(void *p1, void *p2); +void *zebra_evpn_alloc(void *p); +struct zebra_evpn *zebra_evpn_lookup(vni_t vni); +struct zebra_evpn *zebra_evpn_add(vni_t vni); +int zebra_evpn_del(struct zebra_evpn *zevpn); +int zebra_evpn_send_add_to_client(struct zebra_evpn *zevpn); +int zebra_evpn_send_del_to_client(struct zebra_evpn *zevpn); +struct zebra_vtep *zebra_evpn_vtep_find(struct zebra_evpn *zevpn, + struct in_addr *vtep_ip); +struct zebra_vtep *zebra_evpn_vtep_add(struct zebra_evpn *zevpn, + struct in_addr *vtep_ip, + int flood_control); +int zebra_evpn_vtep_del(struct zebra_evpn *zevpn, struct zebra_vtep *zvtep); +int zebra_evpn_vtep_del_all(struct zebra_evpn *zevpn, int uninstall); +int zebra_evpn_vtep_install(struct zebra_evpn *zevpn, struct zebra_vtep *zvtep); +int zebra_evpn_vtep_uninstall(struct zebra_evpn *zevpn, + struct in_addr *vtep_ip); +void zebra_evpn_handle_flooding_remote_vteps(struct hash_bucket *bucket, + void *zvrf); +void zebra_evpn_cleanup_all(struct hash_bucket *bucket, void *arg); +void zebra_evpn_rem_macip_add(vni_t vni, const struct ethaddr *macaddr, + uint16_t ipa_len, const struct ipaddr *ipaddr, + uint8_t flags, uint32_t seq, + struct in_addr vtep_ip, const esi_t *esi); +void zebra_evpn_rem_macip_del(vni_t vni, const struct ethaddr *macaddr, + uint16_t ipa_len, const struct ipaddr *ipaddr, + struct in_addr vtep_ip); +void zebra_evpn_cfg_cleanup(struct hash_bucket *bucket, void *ctxt); + +#ifdef __cplusplus +} +#endif + +#endif /*_ZEBRA_EVPN_H */ |