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         case IANA_AFI_RESERVED:
  65                 return AFI_MAX;
  66         }
  67
  68         return AFI_MAX;
  69 }
  70
  71 static inline iana_afi_t afi_int2iana(afi_t afi)
  72 {
  73         switch (afi) {
  74         case AFI_IP:
  75                 return IANA_AFI_IPV4;
  76         case AFI_IP6:
  77                 return IANA_AFI_IPV6;
  78         case AFI_L2VPN:
  79                 return IANA_AFI_L2VPN;
  80         case AFI_UNSPEC:
  81         case AFI_MAX:
  82                 return IANA_AFI_RESERVED;
  83         }
  84
  85         return IANA_AFI_RESERVED;
  86 }
  87
  88 static inline const char *iana_afi2str(iana_afi_t afi)
  89 {
  90         return afi2str(afi_iana2int(afi));
  91 }
  92
  93 static inline safi_t safi_iana2int(iana_safi_t safi)
  94 {
  95         switch (safi) {
  96         case IANA_SAFI_UNICAST:
  97                 return SAFI_UNICAST;
  98         case IANA_SAFI_MULTICAST:
  99                 return SAFI_MULTICAST;
 100         case IANA_SAFI_MPLS_VPN:
 101                 return SAFI_MPLS_VPN;
 102         case IANA_SAFI_ENCAP:
 103                 return SAFI_ENCAP;
 104         case IANA_SAFI_EVPN:
 105                 return SAFI_EVPN;
 106         case IANA_SAFI_LABELED_UNICAST:
 107                 return SAFI_LABELED_UNICAST;
 108         case IANA_SAFI_FLOWSPEC:
 109                 return SAFI_FLOWSPEC;
 110         case IANA_SAFI_RESERVED:
 111                 return SAFI_MAX;
 112         }
 113
 114         return SAFI_MAX;
 115 }
 116
 117 static inline iana_safi_t safi_int2iana(safi_t safi)
 118 {
 119         switch (safi) {
 120         case SAFI_UNICAST:
 121                 return IANA_SAFI_UNICAST;
 122         case SAFI_MULTICAST:
 123                 return IANA_SAFI_MULTICAST;
 124         case SAFI_MPLS_VPN:
 125                 return IANA_SAFI_MPLS_VPN;
 126         case SAFI_ENCAP:
 127                 return IANA_SAFI_ENCAP;
 128         case SAFI_EVPN:
 129                 return IANA_SAFI_EVPN;
 130         case SAFI_LABELED_UNICAST:
 131                 return IANA_SAFI_LABELED_UNICAST;
 132         case SAFI_FLOWSPEC:
 133                 return IANA_SAFI_FLOWSPEC;
 134         case SAFI_UNSPEC:
 135         case SAFI_MAX:
 136                 return IANA_SAFI_RESERVED;
 137         }
 138
 139         return IANA_SAFI_RESERVED;
 140 }
 141
 142 static inline const char *iana_safi2str(iana_safi_t safi)
 143 {
 144         return safi2str(safi_iana2int(safi));
 145 }
 146
 147 #ifdef __cplusplus
 148 }
 149 #endif
 150
 151 #endif