Line data    Source code

       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          15 : static inline afi_t afi_iana2int(iana_afi_t afi)
      56             : {
      57          15 :         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          21 : static inline iana_afi_t afi_int2iana(afi_t afi)
      72             : {
      73          21 :         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           0 : static inline const char *iana_afi2str(iana_afi_t afi)
      89             : {
      90           0 :         return afi2str(afi_iana2int(afi));
      91             : }
      92             : 
      93          15 : static inline safi_t safi_iana2int(iana_safi_t safi)
      94             : {
      95          15 :         switch (safi) {
      96             :         case IANA_SAFI_UNICAST:
      97             :                 return SAFI_UNICAST;
      98           0 :         case IANA_SAFI_MULTICAST:
      99           0 :                 return SAFI_MULTICAST;
     100           0 :         case IANA_SAFI_MPLS_VPN:
     101           0 :                 return SAFI_MPLS_VPN;
     102           0 :         case IANA_SAFI_ENCAP:
     103           0 :                 return SAFI_ENCAP;
     104           0 :         case IANA_SAFI_EVPN:
     105           0 :                 return SAFI_EVPN;
     106           0 :         case IANA_SAFI_LABELED_UNICAST:
     107           0 :                 return SAFI_LABELED_UNICAST;
     108           0 :         case IANA_SAFI_FLOWSPEC:
     109           0 :                 return SAFI_FLOWSPEC;
     110             :         case IANA_SAFI_RESERVED:
     111             :                 return SAFI_MAX;
     112             :         }
     113             : 
     114             :         return SAFI_MAX;
     115             : }
     116             : 
     117          21 : static inline iana_safi_t safi_int2iana(safi_t safi)
     118             : {
     119          21 :         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           0 : static inline const char *iana_safi2str(iana_safi_t safi)
     143             : {
     144           0 :         return safi2str(safi_iana2int(safi));
     145             : }
     146             : 
     147             : #ifdef __cplusplus
     148             : }
     149             : #endif
     150             : 
     151             : #endif