lib/asn.h

   1 /*
   2  * AS number structure
   3  * Copyright 2022 6WIND
   4  *
   5  * This file is part of GNU Zebra.
   6  *
   7  * GNU Zebra is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published
   9  * by the Free Software Foundation; either version 2, or (at your
  10  * option) any later version.
  11  *
  12  * GNU Zebra is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; see the file COPYING; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef _FRR_ASN_H
  23 #define _FRR_ASN_H
  24
  25 #include "zebra.h"
  26 #include "command_match.h"
  27 #include "json.h"
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 #define ASN_STRING_MAX_SIZE     12
  34
  35 enum asnotation_mode {
  36         ASNOTATION_PLAIN = 0,
  37         ASNOTATION_DOT,
  38         ASNOTATION_DOTPLUS,
  39         ASNOTATION_UNDEFINED,
  40 };
  41
  42 typedef uint32_t as_t;
  43
  44 extern bool asn_str2asn(const char *asstring, as_t *asn);
  45 extern const char *asn_asn2asplain(as_t asn);
  46 extern const char *asn_str2asn_parse(const char *asstring, as_t *asn,
  47                                      bool *found_ptr);
  48 extern enum match_type asn_str2asn_match(const char *str);
  49 extern bool asn_str2asn_notation(const char *asstring, as_t *asn,
  50                                  enum asnotation_mode *asnotation);
  51 extern const char *asn_mode2str(enum asnotation_mode asnotation);
  52 void asn_asn2json_array(json_object *jseg_list, as_t asn,
  53                         enum asnotation_mode asnotation);
  54 void asn_asn2json(json_object *jseg_list, const char *attr,
  55                   as_t asn, enum asnotation_mode asnotation);
  56 extern char *asn_asn2string(const as_t *as, char *buf, size_t len,
  57                             enum asnotation_mode asnotation);
  58 /* display AS in appropriate format */
  59 #ifdef _FRR_ATTRIBUTE_PRINTFRR
  60 #pragma FRR printfrr_ext "%pASP"  (as_t *)
  61 #pragma FRR printfrr_ext "%pASD"  (as_t *)
  62 #pragma FRR printfrr_ext "%pASE"  (as_t *)
  63 #endif
  64
  65 #define ASN_FORMAT(mode)  \
  66         ((mode == ASNOTATION_DOT) ? "%pASD" :       \
  67          ((mode == ASNOTATION_DOTPLUS) ? "%pASE" :      \
  68           "%pASP"))
  69 #define ASN_FORMAT_SPACE(mode)              \
  70         ((mode == ASNOTATION_DOT) ? "%10pASD" :     \
  71          ((mode == ASNOTATION_DOTPLUS) ? "%10pASE" :    \
  72           "%10pASP"))
  73
  74 /* for test */
  75 extern void asn_relax_as_zero(bool relax);
  76
  77 #ifdef __cplusplus
  78 }
  79 #endif
  80
  81 #endif /* _FRR_ASN_H */