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 /*
  25  * The above AFI and SAFI definitions are for internal use. The protocol
  26  * definitions (IANA values) as for example used in BGP protocol packets
  27  * are defined below and these will get mapped to/from the internal values
  28  * in the appropriate places.
  29  * The rationale is that the protocol (IANA) values may be sparse and are
  30  * not optimal for use in data-structure sizing.
  31  * Note: Only useful (i.e., supported) values are defined below.
  32  */
  33 typedef enum {
  34         IANA_AFI_RESERVED = 0,
  35         IANA_AFI_IPV4 = 1,
  36         IANA_AFI_IPV6 = 2,
  37         IANA_AFI_L2VPN = 25,
  38 } iana_afi_t;
  39
  40 typedef enum {
  41         IANA_SAFI_RESERVED = 0,
  42         IANA_SAFI_UNICAST = 1,
  43         IANA_SAFI_MULTICAST = 2,
  44         IANA_SAFI_LABELED_UNICAST = 4,
  45         IANA_SAFI_ENCAP = 7,
  46         IANA_SAFI_EVPN = 70,
  47         IANA_SAFI_MPLS_VPN = 128,
  48         IANA_SAFI_FLOWSPEC = 133
  49 } iana_safi_t;
  50
  51 static inline afi_t afi_iana2int(iana_afi_t afi)
  52 {
  53         switch (afi) {
  54         case IANA_AFI_IPV4:
  55                 return AFI_IP;
  56         case IANA_AFI_IPV6:
  57                 return AFI_IP6;
  58         case IANA_AFI_L2VPN:
  59                 return AFI_L2VPN;
  60         default:
  61                 return AFI_MAX;
  62         }
  63 }
  64
  65 static inline iana_afi_t afi_int2iana(afi_t afi)
  66 {
  67         switch (afi) {
  68         case AFI_IP:
  69                 return IANA_AFI_IPV4;
  70         case AFI_IP6:
  71                 return IANA_AFI_IPV6;
  72         case AFI_L2VPN:
  73                 return IANA_AFI_L2VPN;
  74         default:
  75                 return IANA_AFI_RESERVED;
  76         }
  77 }
  78
  79 static inline const char *iana_afi2str(iana_afi_t afi)
  80 {
  81         return afi2str(afi_iana2int(afi));
  82 }
  83
  84 static inline safi_t safi_iana2int(iana_safi_t safi)
  85 {
  86         switch (safi) {
  87         case IANA_SAFI_UNICAST:
  88                 return SAFI_UNICAST;
  89         case IANA_SAFI_MULTICAST:
  90                 return SAFI_MULTICAST;
  91         case IANA_SAFI_MPLS_VPN:
  92                 return SAFI_MPLS_VPN;
  93         case IANA_SAFI_ENCAP:
  94                 return SAFI_ENCAP;
  95         case IANA_SAFI_EVPN:
  96                 return SAFI_EVPN;
  97         case IANA_SAFI_LABELED_UNICAST:
  98                 return SAFI_LABELED_UNICAST;
  99         case IANA_SAFI_FLOWSPEC:
 100                 return SAFI_FLOWSPEC;
 101         default:
 102                 return SAFI_MAX;
 103         }
 104 }
 105
 106 static inline iana_safi_t safi_int2iana(safi_t safi)
 107 {
 108         switch (safi) {
 109         case SAFI_UNICAST:
 110                 return IANA_SAFI_UNICAST;
 111         case SAFI_MULTICAST:
 112                 return IANA_SAFI_MULTICAST;
 113         case SAFI_MPLS_VPN:
 114                 return IANA_SAFI_MPLS_VPN;
 115         case SAFI_ENCAP:
 116                 return IANA_SAFI_ENCAP;
 117         case SAFI_EVPN:
 118                 return IANA_SAFI_EVPN;
 119         case SAFI_LABELED_UNICAST:
 120                 return IANA_SAFI_LABELED_UNICAST;
 121         case SAFI_FLOWSPEC:
 122                 return IANA_SAFI_FLOWSPEC;
 123         default:
 124                 return IANA_SAFI_RESERVED;
 125         }
 126 }
 127
 128 static inline const char *iana_safi2str(iana_safi_t safi)
 129 {
 130         return safi2str(safi_iana2int(safi));
 131 }
 132
 133 #endif