bgpd/bgp_evpn.h

   1 /* E-VPN header for packet handling
   2  * Copyright (C) 2016 6WIND
   3  *
   4  * This file is part of FRRouting.
   5  *
   6  * FRRouting 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  * FRRouting 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 along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _QUAGGA_BGP_EVPN_H
  22 #define _QUAGGA_BGP_EVPN_H
  23
  24 #include "vxlan.h"
  25 #include "bgpd.h"
  26
  27 #define EVPN_ROUTE_STRLEN 200 /* Must be >> MAC + IPv6 strings. */
  28
  29 static inline int is_evpn_enabled(void)
  30 {
  31         struct bgp *bgp = NULL;
  32
  33         bgp = bgp_get_default();
  34         return bgp ? bgp->advertise_all_vni : 0;
  35 }
  36
  37 static inline void vni2label(vni_t vni, mpls_label_t *label)
  38 {
  39         u_char *tag = (u_char *)label;
  40
  41         tag[0] = (vni >> 16) & 0xFF;
  42         tag[1] = (vni >> 8) & 0xFF;
  43         tag[2] = vni & 0xFF;
  44 }
  45
  46 static inline vni_t label2vni(mpls_label_t *label)
  47 {
  48         u_char *tag = (u_char *)label;
  49         vni_t vni;
  50
  51         vni = ((u_int32_t)*tag++ << 16);
  52         vni |= (u_int32_t)*tag++ << 8;
  53         vni |= (u_int32_t)(*tag & 0xFF);
  54
  55         return vni;
  56 }
  57
  58 extern void bgp_evpn_advertise_type5_route(struct bgp *bgp_vrf,
  59                                            struct prefix *p,
  60                                            struct attr *src_attr,
  61                                            afi_t afi, safi_t safi);
  62 extern void bgp_evpn_withdraw_type5_route(struct bgp *bgp_vrf,
  63                                           struct prefix *p,
  64                                           afi_t afi, safi_t safi);
  65 extern void bgp_evpn_withdraw_type5_routes(struct bgp *bgp_vrf, afi_t afi,
  66                                            safi_t safi);
  67 extern void bgp_evpn_advertise_type5_routes(struct bgp *bgp_vrf, afi_t afi,
  68                                             safi_t safi);
  69 extern void bgp_evpn_vrf_delete(struct bgp *bgp_vrf);
  70 extern void bgp_evpn_handle_router_id_update(struct bgp *bgp, int withdraw);
  71 extern char *bgp_evpn_label2str(mpls_label_t *label, u_int32_t num_labels,
  72                                 char *buf, int len);
  73 extern char *bgp_evpn_route2str(struct prefix_evpn *p, char *buf, int len);
  74 extern void bgp_evpn_route2json(struct prefix_evpn *p, json_object *json);
  75 extern void bgp_evpn_encode_prefix(struct stream *s, struct prefix *p,
  76                                    struct prefix_rd *prd,
  77                                    mpls_label_t *label, u_int32_t num_labels,
  78                                    struct attr *attr, int addpath_encode,
  79                                    u_int32_t addpath_tx_id);
  80 extern int bgp_nlri_parse_evpn(struct peer *peer, struct attr *attr,
  81                                struct bgp_nlri *packet, int withdraw);
  82 extern int bgp_evpn_import_route(struct bgp *bgp, afi_t afi, safi_t safi,
  83                                  struct prefix *p, struct bgp_info *ri);
  84 extern int bgp_evpn_unimport_route(struct bgp *bgp, afi_t afi, safi_t safi,
  85                                    struct prefix *p, struct bgp_info *ri);
  86 extern int bgp_filter_evpn_routes_upon_martian_nh_change(struct bgp *bgp);
  87 extern int bgp_evpn_local_macip_del(struct bgp *bgp, vni_t vni,
  88                                     struct ethaddr *mac, struct ipaddr *ip);
  89 extern int bgp_evpn_local_macip_add(struct bgp *bgp, vni_t vni,
  90                                     struct ethaddr *mac, struct ipaddr *ip,
  91                                     u_char flags);
  92 extern int bgp_evpn_local_l3vni_add(vni_t vni, vrf_id_t vrf_id,
  93                                     struct ethaddr *rmac,
  94                                     struct in_addr originator_ip);
  95 extern int bgp_evpn_local_l3vni_del(vni_t vni, vrf_id_t vrf_id);
  96 extern int bgp_evpn_local_vni_del(struct bgp *bgp, vni_t vni);
  97 extern int bgp_evpn_local_vni_add(struct bgp *bgp, vni_t vni,
  98                                   struct in_addr originator_ip,
  99                                   vrf_id_t tenant_vrf_id);
 100 extern void bgp_evpn_cleanup_on_disable(struct bgp *bgp);
 101 extern void bgp_evpn_cleanup(struct bgp *bgp);
 102 extern void bgp_evpn_init(struct bgp *bgp);
 103
 104 #endif /* _QUAGGA_BGP_EVPN_H */