dn42-roagen/rfc8416.php

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<?php
// Load lib files.
require ("lib/define.php");
require ("lib/functions.php");
// Define array() we are going to populate with data.
$roas["slurmVersion"] = 1;
2018-12-14 15:53:49 +00:00
$roas["validationOutputFilters"]["prefixFilters"] = array();
$roas["validationOutputFilters"]["bgpsecFilters"] = array();
$roas["locallyAddedAssertions"]["bgpsecAssertions"] = array();
/*
*
* IPv6
*
*/
$i = 0; // Counter used with tmp $raw_array.
$raw_array = array(); // tmp array() used for storing data to be processed
foreach ($files6 as $file)
{
$j = 0;
/*
* route6 with maxLength value set:
* - fd42:5d71:219::/48
*
* $ cat ../registry/data/route6/fd42:5d71:219::_48
* route6: fd42:5d71:219::/48
* origin: AS4242420119
* max-length: 48
* mnt-by: JRB0001-MNT
* source: DN42
*/
$data = file("../registry/data/route6/$file");
foreach ($data as $str)
{
$str = trim_special_chars ($str);
if (startsWith ($str, "max", 3)) $raw_array[$i]["max"] = $str;
elseif (startsWith ($str, "source", 6)) $raw_array[$i]["source"] = $str;
elseif (startsWith ($str, "route6", 6)) $raw_array[$i]["route"] = $str;
elseif (startsWith ($str, "origin", 6)) $raw_array[$i]["asn"][$j++] = $str;
elseif (startsWith ($str, "mnt", 3)) $raw_array[$i]["mnt"] = $str;
// Catch max-length not set in route object.
if (empty ($raw_array[$i]["max"])) $raw_array[$i]["max"] = -1;
}
$i++;
}
$k = 0;
foreach ($raw_array as $sub_array)
{
// Extract prefix and subnet size
// Match prefix sizes 29-64, 80.
$prefix = array();
preg_match ("/([a-f0-9\:]{0,128})\/(29|[3-5][0-9]|6[0-4]|80)/",
explode ("6: ", $sub_array["route"])[1],
$prefix);
// Extract ta information
$source = array();
preg_match ("/([A-Z0-4]+)/",
explode (":", $sub_array["source"])[1],
$source);
// Try to extract max-length information
$maxlength = array();
if (($sub_array["max"]) != -1)
preg_match ("/([0-9]+)/",
explode (":", $sub_array["max"])[1],
$maxlength);
// Extract mnt-by information
$mnt = array();
preg_match ("/([A-Z0-9\-]+)/",
explode (":", $sub_array["mnt"])[1],
$mnt);
// Store extracted values
$_prefix = $prefix[0];
$_ta = (isset ($source[0]) ? $source[0] : "");
// We need to do conditional setting of maxLength to avoid errornous output.
if (($sub_array["max"]) != -1)
$_maxlength = (isset ($maxlength[0]) ? $maxlength[0] : "");
else
// Do fallback to default prefix size if max-length was not set.
$_maxlength = ($prefix[2] < MAX_LEN_IPV6 ? MAX_LEN_IPV6 : $prefix[2]);
$_mnt = $mnt[0];
// Loop through each asn in single route6 object and assign
// other values accordingly.
foreach ($sub_array["asn"] as $asn)
{
// Extract ASxxxxx from string.
preg_match ("/AS[0-9]+/", explode (":", $asn)[1], $_asn);
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["asn"] = trim ($_asn[0], "AS");
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["prefix"] = $_prefix;
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["maxPrefixLength"] = $_maxlength;
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["comment"] = "$_ta - mnt-by $_mnt";
$k++;
}
}
/*
*
* IPv4
*
*/
$i = 0; // Counter used with tmp $raw_array.
$raw_array = array(); // tmp array() used for storing data to be processed
foreach ($files4 as $file)
{
$j = 0;
/*
* route with maxLength value set:
* - 172.20.1.0/24
*
* $ cat ../registry/data/route/172.20.1.0_24
* route: 172.20.1.0/24
* origin: AS4242420119
* max-length: 24
* mnt-by: JRB0001-MNT
* source: DN42
*/
$data = file("../registry/data/route/$file");
foreach ($data as $str)
{
$str = trim_special_chars ($str);
if (startsWith ($str, "max", 3)) $raw_array[$i]["max"] = $str;
elseif (startsWith ($str, "source", 6)) $raw_array[$i]["source"] = $str;
elseif (startsWith ($str, "route", 5)) $raw_array[$i]["route"] = $str;
elseif (startsWith ($str, "origin", 6)) $raw_array[$i]["asn"][$j++] = $str;
elseif (startsWith ($str, "mnt", 3)) $raw_array[$i]["mnt"] = $str;
// Catch max-length not set in route object.
if (empty ($raw_array[$i]["max"])) $raw_array[$i]["max"] = -1;
}
$i++;
}
foreach ($raw_array as $sub_array)
{
// Extract prefix and subnet size
// Match prefix sizes 8-32.
$prefix = array();
preg_match ("/([0-9\.]{7,15})\/([8-9]|[1-2][0-9]|3[0-2])/",
explode (":", $sub_array["route"])[1],
$prefix);
// Extract ta information
$source = array();
preg_match ("/([A-Z0-4]+)/",
explode (":", $sub_array["source"])[1],
$source);
// Try to extract max-length information
$maxlength = array();
if (($sub_array["max"]) != -1)
preg_match ("/([0-9]+)/",
explode (":", $sub_array["max"])[1],
$maxlength);
// Extract mnt-by information
$mnt = array();
preg_match ("/([A-Z0-9\-]+)/",
explode (":", $sub_array["mnt"])[1],
$mnt);
// Store extracted values
$_prefix = $prefix[0];
$_ta = (isset ($source[0]) ? $source[0] : "");
// We need to do conditional setting of maxLength to avoid errornous output.
if (($sub_array["max"]) != -1)
$_maxlength = (isset ($maxlength[0]) ? $maxlength[0] : "");
else
// Do fallback to default prefix size if max-length was not set.
$_maxlength = ($prefix[2] < MAX_LEN_IPV4 ? MAX_LEN_IPV4 : $prefix[2]);
$_mnt = $mnt[0];
// Loop through each asn in single route6 object and assign
// other values accordingly.
foreach ($sub_array["asn"] as $asn)
{
// Extract ASxxxxx from string.
preg_match ("/AS[0-9]+/", explode (":", $asn)[1], $_asn);
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["asn"] = trim ($_asn[0], "AS");
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["prefix"] = $_prefix;
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["maxPrefixLength"] = $_maxlength;
$roas["locallyAddedAssertions"]["prefixAssertions"][$k]["comment"] = "$_ta - mnt-by $_mnt";
$k++;
}
}
writeRoutinatorExceptionFile($roas);
?>