lib/iana_afi.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * iana_afi and safi definitions.
   4  * Copyright (C) 2018-2019 Cumulus Networks, Inc.
   5  * Donald Sharp
   6  */
   7 #ifndef __IANA_AFI_H__
   8
   9 #include <prefix.h>
  10
  11 #ifdef __cplusplus
  12 extern "C" {
  13 #endif
  14
  15 /*
  16  * The above AFI and SAFI definitions are for internal use. The protocol
  17  * definitions (IANA values) as for example used in BGP protocol packets
  18  * are defined below and these will get mapped to/from the internal values
  19  * in the appropriate places.
  20  * The rationale is that the protocol (IANA) values may be sparse and are
  21  * not optimal for use in data-structure sizing.
  22  * Note: Only useful (i.e., supported) values are defined below.
  23  */
  24 typedef enum {
  25         IANA_AFI_RESERVED = 0,
  26         IANA_AFI_IPV4 = 1,
  27         IANA_AFI_IPV6 = 2,
  28         IANA_AFI_L2VPN = 25,
  29 } iana_afi_t;
  30
  31 typedef enum {
  32         IANA_SAFI_RESERVED = 0,
  33         IANA_SAFI_UNICAST = 1,
  34         IANA_SAFI_MULTICAST = 2,
  35         IANA_SAFI_LABELED_UNICAST = 4,
  36         IANA_SAFI_ENCAP = 7,
  37         IANA_SAFI_EVPN = 70,
  38         IANA_SAFI_MPLS_VPN = 128,
  39         IANA_SAFI_FLOWSPEC = 133
  40 } iana_safi_t;
  41
  42 static inline afi_t afi_iana2int(iana_afi_t afi)
  43 {
  44         switch (afi) {
  45         case IANA_AFI_IPV4:
  46                 return AFI_IP;
  47         case IANA_AFI_IPV6:
  48                 return AFI_IP6;
  49         case IANA_AFI_L2VPN:
  50                 return AFI_L2VPN;
  51         case IANA_AFI_RESERVED:
  52                 return AFI_MAX;
  53         }
  54
  55         return AFI_MAX;
  56 }
  57
  58 static inline iana_afi_t afi_int2iana(afi_t afi)
  59 {
  60         switch (afi) {
  61         case AFI_IP:
  62                 return IANA_AFI_IPV4;
  63         case AFI_IP6:
  64                 return IANA_AFI_IPV6;
  65         case AFI_L2VPN:
  66                 return IANA_AFI_L2VPN;
  67         case AFI_UNSPEC:
  68         case AFI_MAX:
  69                 return IANA_AFI_RESERVED;
  70         }
  71
  72         return IANA_AFI_RESERVED;
  73 }
  74
  75 static inline const char *iana_afi2str(iana_afi_t afi)
  76 {
  77         return afi2str(afi_iana2int(afi));
  78 }
  79
  80 static inline safi_t safi_iana2int(iana_safi_t safi)
  81 {
  82         switch (safi) {
  83         case IANA_SAFI_UNICAST:
  84                 return SAFI_UNICAST;
  85         case IANA_SAFI_MULTICAST:
  86                 return SAFI_MULTICAST;
  87         case IANA_SAFI_MPLS_VPN:
  88                 return SAFI_MPLS_VPN;
  89         case IANA_SAFI_ENCAP:
  90                 return SAFI_ENCAP;
  91         case IANA_SAFI_EVPN:
  92                 return SAFI_EVPN;
  93         case IANA_SAFI_LABELED_UNICAST:
  94                 return SAFI_LABELED_UNICAST;
  95         case IANA_SAFI_FLOWSPEC:
  96                 return SAFI_FLOWSPEC;
  97         case IANA_SAFI_RESERVED:
  98                 return SAFI_MAX;
  99         }
 100
 101         return SAFI_MAX;
 102 }
 103
 104 static inline iana_safi_t safi_int2iana(safi_t safi)
 105 {
 106         switch (safi) {
 107         case SAFI_UNICAST:
 108                 return IANA_SAFI_UNICAST;
 109         case SAFI_MULTICAST:
 110                 return IANA_SAFI_MULTICAST;
 111         case SAFI_MPLS_VPN:
 112                 return IANA_SAFI_MPLS_VPN;
 113         case SAFI_ENCAP:
 114                 return IANA_SAFI_ENCAP;
 115         case SAFI_EVPN:
 116                 return IANA_SAFI_EVPN;
 117         case SAFI_LABELED_UNICAST:
 118                 return IANA_SAFI_LABELED_UNICAST;
 119         case SAFI_FLOWSPEC:
 120                 return IANA_SAFI_FLOWSPEC;
 121         case SAFI_UNSPEC:
 122         case SAFI_MAX:
 123                 return IANA_SAFI_RESERVED;
 124         }
 125
 126         return IANA_SAFI_RESERVED;
 127 }
 128
 129 static inline const char *iana_safi2str(iana_safi_t safi)
 130 {
 131         return safi2str(safi_iana2int(safi));
 132 }
 133
 134 #ifdef __cplusplus
 135 }
 136 #endif
 137
 138 #endif