bgpd/bgp_rd.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /* BGP RD definitions for BGP-based VPNs (IP/EVPN)
   3  * -- brought over from bgpd/bgp_mplsvpn.h
   4  * Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
   5  */
   6
   7 #ifndef _QUAGGA_BGP_RD_H
   8 #define _QUAGGA_BGP_RD_H
   9
  10 /* RD types */
  11 #define RD_TYPE_AS      0
  12 #define RD_TYPE_IP      1
  13 #define RD_TYPE_AS4     2
  14
  15 #ifdef ENABLE_BGP_VNC
  16 #define RD_TYPE_VNC_ETH 0xff00  /* VNC L2VPN */
  17 #endif
  18
  19 #define RD_ADDRSTRLEN  28
  20 #define RD_BYTES  8
  21
  22 struct rd_as {
  23         uint16_t type;
  24         as_t as;
  25         uint32_t val;
  26 };
  27
  28 struct rd_ip {
  29         uint16_t type;
  30         struct in_addr ip;
  31         uint16_t val;
  32 };
  33
  34 #ifdef ENABLE_BGP_VNC
  35 struct rd_vnc_eth {
  36         uint16_t type;
  37         uint8_t local_nve_id;
  38         struct ethaddr macaddr;
  39 };
  40 #endif
  41
  42 extern uint16_t decode_rd_type(const uint8_t *pnt);
  43 extern void encode_rd_type(uint16_t, uint8_t *);
  44
  45 extern void decode_rd_as(const uint8_t *pnt, struct rd_as *rd_as);
  46 extern void decode_rd_as4(const uint8_t *pnt, struct rd_as *rd_as);
  47 extern void decode_rd_ip(const uint8_t *pnt, struct rd_ip *rd_ip);
  48 #ifdef ENABLE_BGP_VNC
  49 extern void decode_rd_vnc_eth(const uint8_t *pnt,
  50                               struct rd_vnc_eth *rd_vnc_eth);
  51 #endif
  52
  53 extern int str2prefix_rd(const char *, struct prefix_rd *);
  54 extern char *prefix_rd2str(const struct prefix_rd *, char *, size_t);
  55 extern void form_auto_rd(struct in_addr router_id, uint16_t rd_id,
  56                          struct prefix_rd *prd);
  57
  58 #endif /* _QUAGGA_BGP_RD_H */