src/loc/format.h

   1 /*
   2         libloc - A library to determine the location of someone on the Internet
   3
   4         Copyright (C) 2017 IPFire Development Team <info@ipfire.org>
   5
   6         This library is free software; you can redistribute it and/or
   7         modify it under the terms of the GNU Lesser General Public
   8         License as published by the Free Software Foundation; either
   9         version 2.1 of the License, or (at your option) any later version.
  10
  11         This library is distributed in the hope that it will be useful,
  12         but WITHOUT ANY WARRANTY; without even the implied warranty of
  13         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14         Lesser General Public License for more details.
  15 */
  16
  17 #ifndef LIBLOC_FORMAT_H
  18 #define LIBLOC_FORMAT_H
  19
  20 #include <stdint.h>
  21
  22 #define LOC_DATABASE_MAGIC      "LOCDBXX"
  23 #define LOC_DATABASE_VERSION    0
  24
  25 #define LOC_DATABASE_PAGE_SIZE  4096
  26
  27 struct loc_database_magic {
  28         char magic[7];
  29
  30         // Database version information
  31         uint8_t version;
  32 };
  33
  34 struct loc_database_header_v0 {
  35         // UNIX timestamp when the database was created
  36         uint64_t created_at;
  37
  38         // Vendor who created the database
  39         uint32_t vendor;
  40
  41         // Description of the database
  42         uint32_t description;
  43
  44         // Tells us where the ASes start
  45         uint32_t as_offset;
  46         uint32_t as_length;
  47
  48         // Tells us where the networks start
  49         uint32_t network_data_offset;
  50         uint32_t network_data_length;
  51
  52         // Tells us where the network nodes start
  53         uint32_t network_tree_offset;
  54         uint32_t network_tree_length;
  55
  56         // Tells us where the pool starts
  57         uint32_t pool_offset;
  58         uint32_t pool_length;
  59 };
  60
  61 struct loc_database_network_node_v0 {
  62         uint32_t zero;
  63         uint32_t one;
  64 };
  65
  66 struct loc_database_network_v0 {
  67         // The start address will be encoded in the tree
  68         uint8_t prefix;
  69
  70         // The country this network is located in
  71         char country_code[2];
  72
  73         // ASN
  74         uint32_t asn;
  75 };
  76
  77 struct loc_database_as_v0 {
  78         // The AS number
  79         uint32_t number;
  80
  81         // Name
  82         uint32_t name;
  83 };
  84
  85 #endif