lib/iana_afi.h

   1 /*
   2  * iana_afi and safi definitions.
   3  * Copyright (C) 2018-2019 Cumulus Networks, Inc.
   4  * Donald Sharp
   5  *
   6  * This program 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 Free
   8  * Software Foundation; either version 2 of the License, or (at your option)
   9  * any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * 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 #ifndef __IANA_AFI_H__
  21
  22 #include <prefix.h>
  23
  24 #ifdef __cplusplus
  25 extern "C" {
  26 #endif
  27
  28 /*
  29  * The above AFI and SAFI definitions are for internal use. The protocol
  30  * definitions (IANA values) as for example used in BGP protocol packets
  31  * are defined below and these will get mapped to/from the internal values
  32  * in the appropriate places.
  33  * The rationale is that the protocol (IANA) values may be sparse and are
  34  * not optimal for use in data-structure sizing.
  35  * Note: Only useful (i.e., supported) values are defined below.
  36  */
  37 typedef enum {
  38         IANA_AFI_RESERVED = 0,
  39         IANA_AFI_IPV4 = 1,
  40         IANA_AFI_IPV6 = 2,
  41         IANA_AFI_L2VPN = 25,
  42 } iana_afi_t;
  43
  44 typedef enum {
  45         IANA_SAFI_RESERVED = 0,
  46         IANA_SAFI_UNICAST = 1,
  47         IANA_SAFI_MULTICAST = 2,
  48         IANA_SAFI_LABELED_UNICAST = 4,
  49         IANA_SAFI_ENCAP = 7,
  50         IANA_SAFI_EVPN = 70,
  51         IANA_SAFI_MPLS_VPN = 128,
  52         IANA_SAFI_FLOWSPEC = 133
  53 } iana_safi_t;
  54
  55 static inline afi_t afi_iana2int(iana_afi_t afi)
  56 {
  57         switch (afi) {
  58         case IANA_AFI_IPV4:
  59                 return AFI_IP;
  60         case IANA_AFI_IPV6:
  61                 return AFI_IP6;
  62         case IANA_AFI_L2VPN:
  63                 return AFI_L2VPN;
  64         default:
  65                 return AFI_MAX;
  66         }
  67 }
  68
  69 static inline iana_afi_t afi_int2iana(afi_t afi)
  70 {
  71         switch (afi) {
  72         case AFI_IP:
  73                 return IANA_AFI_IPV4;
  74         case AFI_IP6:
  75                 return IANA_AFI_IPV6;
  76         case AFI_L2VPN:
  77                 return IANA_AFI_L2VPN;
  78         default:
  79                 return IANA_AFI_RESERVED;
  80         }
  81 }
  82
  83 static inline const char *iana_afi2str(iana_afi_t afi)
  84 {
  85         return afi2str(afi_iana2int(afi));
  86 }
  87
  88 static inline safi_t safi_iana2int(iana_safi_t safi)
  89 {
  90         switch (safi) {
  91         case IANA_SAFI_UNICAST:
  92                 return SAFI_UNICAST;
  93         case IANA_SAFI_MULTICAST:
  94                 return SAFI_MULTICAST;
  95         case IANA_SAFI_MPLS_VPN:
  96                 return SAFI_MPLS_VPN;
  97         case IANA_SAFI_ENCAP:
  98                 return SAFI_ENCAP;
  99         case IANA_SAFI_EVPN:
 100                 return SAFI_EVPN;
 101         case IANA_SAFI_LABELED_UNICAST:
 102                 return SAFI_LABELED_UNICAST;
 103         case IANA_SAFI_FLOWSPEC:
 104                 return SAFI_FLOWSPEC;
 105         default:
 106                 return SAFI_MAX;
 107         }
 108 }
 109
 110 static inline iana_safi_t safi_int2iana(safi_t safi)
 111 {
 112         switch (safi) {
 113         case SAFI_UNICAST:
 114                 return IANA_SAFI_UNICAST;
 115         case SAFI_MULTICAST:
 116                 return IANA_SAFI_MULTICAST;
 117         case SAFI_MPLS_VPN:
 118                 return IANA_SAFI_MPLS_VPN;
 119         case SAFI_ENCAP:
 120                 return IANA_SAFI_ENCAP;
 121         case SAFI_EVPN:
 122                 return IANA_SAFI_EVPN;
 123         case SAFI_LABELED_UNICAST:
 124                 return IANA_SAFI_LABELED_UNICAST;
 125         case SAFI_FLOWSPEC:
 126                 return IANA_SAFI_FLOWSPEC;
 127         default:
 128                 return IANA_SAFI_RESERVED;
 129         }
 130 }
 131
 132 static inline const char *iana_safi2str(iana_safi_t safi)
 133 {
 134         return safi2str(safi_iana2int(safi));
 135 }
 136
 137 #ifdef __cplusplus
 138 }
 139 #endif
 140
 141 #endif