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 #ifdef MPLS_LABEL_MAX
  34 # undef MPLS_LABEL_MAX
  35 #endif
  36
  37 typedef enum {
  38     MPLS_LABEL_IPV4_EXPLICIT_NULL = 0,  /* [RFC3032] */
  39     MPLS_LABEL_ROUTER_ALERT       = 1,  /* [RFC3032] */
  40     MPLS_LABEL_IPV6_EXPLICIT_NULL = 2,  /* [RFC3032] */
  41     MPLS_LABEL_IMPLICIT_NULL      = 3,  /* [RFC3032] */
  42     MPLS_LABEL_UNASSIGNED4        = 4,
  43     MPLS_LABEL_UNASSIGNED5        = 5,
  44     MPLS_LABEL_UNASSIGNED6        = 6,
  45     MPLS_LABEL_ELI                = 7,  /* Entropy Indicator [RFC6790] */
  46     MPLS_LABEL_UNASSIGNED8        = 8,
  47     MPLS_LABEL_UNASSIGNED9        = 9,
  48     MPLS_LABEL_UNASSIGNED10       = 10,
  49     MPLS_LABEL_UNASSIGNED11       = 11,
  50     MPLS_LABEL_GAL                = 13, /* [RFC5586] */
  51     MPLS_LABEL_OAM_ALERT          = 14, /* [RFC3429] */
  52     MPLS_LABEL_EXTENSION          = 15,  /* [RFC7274] */
  53     MPLS_LABEL_MAX                = 1048575,
  54     MPLS_LABEL_ILLEGAL            = 0xFFFFFFFF /* for internal use only */
  55 } mpls_special_label_t;
  56
  57 #define MPLS_LABEL_IS_SPECIAL(label)             \
  58     ((label) <= MPLS_LABEL_EXTENSION)
  59 #define MPLS_LABEL_IS_NULL(label)                \
  60     ((label) == MPLS_LABEL_IPV4_EXPLICIT_NULL || \
  61      (label) == MPLS_LABEL_IPV6_EXPLICIT_NULL || \
  62      (label) == MPLS_LABEL_IMPLICIT_NULL)
  63
  64 #define BGP_VPNVX_HELP_STR       \
  65   "Address Family \n"   \
  66   "Address Family \n"
  67
  68 struct rd_as
  69 {
  70   u_int16_t type;
  71   as_t as;
  72   u_int32_t val;
  73 };
  74
  75 struct rd_ip
  76 {
  77   u_int16_t type;
  78   struct in_addr ip;
  79   u_int16_t val;
  80 };
  81
  82 #if ENABLE_BGP_VNC
  83 struct rd_vnc_eth
  84 {
  85   u_int16_t type;
  86   uint8_t local_nve_id;
  87   struct ethaddr macaddr;
  88 };
  89 #endif
  90
  91 extern u_int16_t decode_rd_type (u_char *);
  92 extern void encode_rd_type (u_int16_t, u_char *);
  93 extern void bgp_mplsvpn_init (void);
  94 extern int bgp_nlri_parse_vpn (struct peer *, struct attr *, struct bgp_nlri *);
  95 extern u_int32_t decode_label (u_char *);
  96 extern void encode_label(u_int32_t, u_char *);
  97 extern void decode_rd_as (u_char *, struct rd_as *);
  98 extern void decode_rd_as4 (u_char *, struct rd_as *);
  99 extern void decode_rd_ip (u_char *, struct rd_ip *);
 100 #if ENABLE_BGP_VNC
 101 extern void decode_vnc_eth (u_char *, struct rd_vnc_eth *);
 102 #endif
 103 extern int str2prefix_rd (const char *, struct prefix_rd *);
 104 extern int str2tag (const char *, u_char *);
 105 extern char *prefix_rd2str (struct prefix_rd *, char *, size_t);
 106
 107 extern int
 108 argv_find_and_parse_vpnvx(struct cmd_token **argv, int argc, int *index, afi_t *afi);
 109
 110 #endif /* _QUAGGA_BGP_MPLSVPN_H */