bgpd/bgp_attr_evpn.h

   1 /* E-VPN attribute handling structure file
   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_ATTR_EVPN_H
  22 #define _QUAGGA_BGP_ATTR_EVPN_H
  23
  24 #define MAX_ET 0xffffffff
  25
  26 struct attr;
  27
  28 enum overlay_index_type {
  29         OVERLAY_INDEX_TYPE_NONE,
  30         OVERLAY_INDEX_GATEWAY_IP,
  31         OVERLAY_INDEX_ESI,
  32         OVERLAY_INDEX_MAC,
  33 };
  34
  35 /*
  36  * Structure to store ovrelay index for EVPN type-5 route
  37  * This structure stores ESI and Gateway IP overlay index.
  38  * MAC overlay index is stored in the RMAC attribute.
  39  */
  40 struct bgp_route_evpn {
  41         enum overlay_index_type type;
  42         esi_t eth_s_id;
  43         struct ipaddr gw_ip;
  44 };
  45
  46 extern bool str2esi(const char *str, esi_t *id);
  47 extern char *ecom_mac2str(char *ecom_mac);
  48
  49 extern void bgp_add_routermac_ecom(struct attr *attr,
  50                                    struct ethaddr *routermac);
  51 extern int bgp_build_evpn_prefix(int type, uint32_t eth_tag,
  52                                  struct prefix *dst);
  53 extern bool bgp_attr_rmac(struct attr *attr, struct ethaddr *rmac);
  54 extern uint32_t bgp_attr_mac_mobility_seqnum(struct attr *attr,
  55                                              uint8_t *sticky);
  56 extern uint8_t bgp_attr_default_gw(struct attr *attr);
  57
  58 extern void bgp_attr_evpn_na_flag(struct attr *attr, uint8_t *router_flag,
  59                 bool *proxy);
  60 extern uint16_t bgp_attr_df_pref_from_ec(struct attr *attr, uint8_t *alg);
  61
  62
  63 extern bool bgp_route_evpn_same(const struct bgp_route_evpn *e1,
  64                                 const struct bgp_route_evpn *e2);
  65 #endif /* _QUAGGA_BGP_ATTR_EVPN_H */