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 /* value of first byte of ESI */
  25 #define ESI_TYPE_ARBITRARY 0  /* */
  26 #define ESI_TYPE_LACP      1  /* <> */
  27 #define ESI_TYPE_BRIDGE    2  /* <Root bridge Mac-6B>:<Root Br Priority-2B>:00 */
  28 #define ESI_TYPE_MAC       3  /* <Syst Mac Add-6B>:<Local Discriminator Value-3B> */
  29 #define ESI_TYPE_ROUTER    4  /* <RouterId-4B>:<Local Discriminator Value-4B> */
  30 #define ESI_TYPE_AS        5  /* <AS-4B>:<Local Discriminator Value-4B> */
  31
  32 #define MAX_ESI {0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff}
  33 #define ESI_LEN 10
  34
  35 #define MAX_ET 0xffffffff
  36
  37 unsigned long eth_tag_id;
  38 struct attr;
  39
  40 /* EVPN ESI */
  41 struct eth_segment_id {
  42         uint8_t val[ESI_LEN];
  43 };
  44
  45 union gw_addr {
  46         struct in_addr ipv4;
  47         struct in6_addr ipv6;
  48 };
  49
  50 struct bgp_route_evpn {
  51         struct eth_segment_id eth_s_id;
  52         union gw_addr gw_ip;
  53 };
  54
  55 extern int str2esi(const char *str, struct eth_segment_id *id);
  56 extern char *esi2str(struct eth_segment_id *id);
  57 extern char *ecom_mac2str(char *ecom_mac);
  58
  59 extern void bgp_add_routermac_ecom(struct attr *attr,
  60                                    struct ethaddr *routermac);
  61 extern int bgp_build_evpn_prefix(int type, uint32_t eth_tag,
  62                                  struct prefix *dst);
  63 extern bool bgp_attr_rmac(struct attr *attr, struct ethaddr *rmac);
  64 extern uint32_t bgp_attr_mac_mobility_seqnum(struct attr *attr,
  65                                              uint8_t *sticky);
  66 extern uint8_t bgp_attr_default_gw(struct attr *attr);
  67
  68 extern void bgp_attr_evpn_na_flag(struct attr *attr, uint8_t *router_flag);
  69
  70 #endif /* _QUAGGA_BGP_ATTR_EVPN_H */