bgpd/bgp_mplsvpn.h

   1 /* MPLS-VPN
   2    Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org>
   3
   4 This file is part of GNU Zebra.
   5
   6 GNU Zebra 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 GNU Zebra 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
  17 along with GNU Zebra; see the file COPYING.  If not, write to the Free
  18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  19 02111-1307, USA.  */
  20
  21 #ifndef _QUAGGA_BGP_MPLSVPN_H
  22 #define _QUAGGA_BGP_MPLSVPN_H
  23
  24 #define RD_TYPE_AS      0
  25 #define RD_TYPE_IP      1
  26 #define RD_TYPE_AS4     2
  27 #if ENABLE_BGP_VNC
  28 #define RD_TYPE_VNC_ETH 0xff00  /* VNC L2VPN */
  29 #endif
  30
  31 #define RD_ADDRSTRLEN  28
  32
  33 typedef enum {
  34     MPLS_LABEL_IPV4_EXPLICIT_NULL = 0,  /* [RFC3032] */
  35     MPLS_LABEL_ROUTER_ALERT       = 1,  /* [RFC3032] */
  36     MPLS_LABEL_IPV6_EXPLICIT_NULL = 2,  /* [RFC3032] */
  37     MPLS_LABEL_IMPLICIT_NULL      = 3,  /* [RFC3032] */
  38     MPLS_LABEL_UNASSIGNED4        = 4,
  39     MPLS_LABEL_UNASSIGNED5        = 5,
  40     MPLS_LABEL_UNASSIGNED6        = 6,
  41     MPLS_LABEL_ELI                = 7,  /* Entropy Indicator [RFC6790] */
  42     MPLS_LABEL_UNASSIGNED8        = 8,
  43     MPLS_LABEL_UNASSIGNED9        = 9,
  44     MPLS_LABEL_UNASSIGNED10       = 10,
  45     MPLS_LABEL_UNASSIGNED11       = 11,
  46     MPLS_LABEL_GAL                = 13, /* [RFC5586] */
  47     MPLS_LABEL_OAM_ALERT          = 14, /* [RFC3429] */
  48     MPLS_LABEL_EXTENSION          = 15  /* [RFC7274] */
  49 } mpls_special_label_t;
  50
  51 #define MPLS_LABEL_IS_SPECIAL(label)             \
  52     ((label) <= MPLS_LABEL_EXTENSION)
  53 #define MPLS_LABEL_IS_NULL(label)                \
  54     ((label) == MPLS_LABEL_IPV4_EXPLICIT_NULL || \
  55      (label) == MPLS_LABEL_IPV6_EXPLICIT_NULL || \
  56      (label) == MPLS_LABEL_IMPLICIT_NULL)
  57
  58 struct rd_as
  59 {
  60   u_int16_t type;
  61   as_t as;
  62   u_int32_t val;
  63 };
  64
  65 struct rd_ip
  66 {
  67   u_int16_t type;
  68   struct in_addr ip;
  69   u_int16_t val;
  70 };
  71
  72 #if ENABLE_BGP_VNC
  73 struct rd_vnc_eth
  74 {
  75   u_int16_t type;
  76   uint8_t local_nve_id;
  77   struct ethaddr macaddr;
  78 };
  79 #endif
  80
  81 extern u_int16_t decode_rd_type (u_char *);
  82 extern void encode_rd_type (u_int16_t, u_char *);
  83 extern void bgp_mplsvpn_init (void);
  84 extern int bgp_nlri_parse_vpn (struct peer *, struct attr *, struct bgp_nlri *);
  85 extern u_int32_t decode_label (u_char *);
  86 extern void encode_label(u_int32_t, u_char *);
  87 extern void decode_rd_as (u_char *, struct rd_as *);
  88 extern void decode_rd_as4 (u_char *, struct rd_as *);
  89 extern void decode_rd_ip (u_char *, struct rd_ip *);
  90 #if ENABLE_BGP_VNC
  91 extern void decode_vnc_eth (u_char *, struct rd_vnc_eth *);
  92 #endif
  93 extern int str2prefix_rd (const char *, struct prefix_rd *);
  94 extern int str2tag (const char *, u_char *);
  95 extern char *prefix_rd2str (struct prefix_rd *, char *, size_t);
  96
  97 #endif /* _QUAGGA_BGP_MPLSVPN_H */