lib/pw.h

   1 /* Pseudowire definitions
   2  * Copyright (C) 2016 Volta Networks, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; see the file COPYING; if not, write to the
  16  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  17  * MA 02110-1301 USA
  18  */
  19
  20 #ifndef _FRR_PW_H
  21 #define _FRR_PW_H
  22
  23 #ifdef __cplusplus
  24 extern "C" {
  25 #endif
  26
  27 /* L2VPN name length. */
  28 #define L2VPN_NAME_LEN          32
  29
  30 /* Pseudowire type - LDP and BGP use the same values. */
  31 #define PW_TYPE_ETHERNET_TAGGED 0x0004  /* RFC 4446 */
  32 #define PW_TYPE_ETHERNET        0x0005  /* RFC 4446 */
  33 #define PW_TYPE_WILDCARD        0x7FFF  /* RFC 4863, RFC 6668 */
  34
  35 /* Pseudowire flags. */
  36 #define F_PSEUDOWIRE_CWORD      0x01
  37
  38 /* Pseudowire status TLV */
  39 #define PW_FORWARDING 0
  40 #define PW_NOT_FORWARDING (1 << 0)
  41 #define PW_LOCAL_RX_FAULT (1 << 1)
  42 #define PW_LOCAL_TX_FAULT (1 << 2)
  43 #define PW_PSN_RX_FAULT (1 << 3)
  44 #define PW_PSN_TX_FAULT (1 << 4)
  45
  46 /*
  47  * Protocol-specific information about the pseudowire.
  48  */
  49 union pw_protocol_fields {
  50         struct {
  51                 struct in_addr lsr_id;
  52                 uint32_t pwid;
  53                 char vpn_name[L2VPN_NAME_LEN];
  54         } ldp;
  55 };
  56
  57 #ifdef __cplusplus
  58 }
  59 #endif
  60
  61 #endif /* _FRR_PW_H */