libIpPool.php

<?php

require_once( __DIR__ . '/libIp6Addr.php' );
require_once( __DIR__ . '/libConfig.php' );

/**
 *  Generate all v4 addresses
 *  @author Johnson Liu
 *  @version v1.0
 */
function getIp4Pool() {

    $config = getConfig();

    $clients = $config['clients'];
    $zones = $config['zones'];

    $v4_pool = [];

    // import zones' addresses
    foreach ( $zones as $current_zone ) {
        // v4_pool[zone_name4] = zone_v4_addr | null
        if ($current_zone['v4_addr']) 
            $v4_pool[ $current_zone['name'] . '4' ] = $current_zone['v4_addr'];
    }

    // import clients' addresses
    foreach ( $clients as $current_client ) {
        // v4_pool[client_name]['v4'] = client_v4_addr | zone_v4_addr | null
        if ($current_client['v4_addr']) {
            $v4_pool[ $current_client['name'] . '4' ] = $current_client['v4_addr'];
        } 
        else if (getZoneByName($current_client['zone'])['v4_addr']) {
            
            $v4_pool[ $current_client['name'] . '4' ] = getZoneByName($current_client['zone'])['v4_addr'];
        } 
    }

    return $v4_pool;
}

/**
 *  Generate all v6 addresses
 */
function getIp6Pool() {

    $config = getConfig();

    $clients = $config['clients'];
    $zones = $config['zones'];

    $v6_pool = [];

    // import clients' addresses
    foreach ( $zones as $current_zone ) {
        // v6_pool[zone_name]['v6'] = zone_v6_addr | null
        if ($current_zone['v6_addr'])
            $v6_pool[$current_zone['name'] . '6'] = $current_zone['v6_addr'];
    }

    foreach ( $clients as $current_client ) {
        // v6_pool[cient_name]['v6'] = client_v6_addr | zone_v6_prefix&client_v6_suffix | zone_v6_addr | null
        if ( $current_client['v6_addr'] ) {
            $v6_pool[$current_client['name'] . '6'] = $current_client['v6_address'];
            
        } else if ( $current_client['v6_suffix'] && getZoneByName($current_client['zone'])['v6_prefix'] ) {
            $suffix = $current_client['v6_suffix'];
            $prefix = getZoneByName($current_client['zone'])['v6_prefix'];
            $cidr = getZoneByName($current_client['zone'])['v6_cidr']?getZoneByName($current_client['zone'])['v6_cidr']:64;

            $v6_pool[$current_client['name'] . '6'] = ip6Merge($prefix, $suffix, $cidr);

        } else if ( getZoneByName($current_client['zone'])['v6_addr'] ) {
            $v6_pool[$current_client['name'] . '6'] = getZoneByName($current_client['zone'])['v6_addr'];
        }
    }

    return $v6_pool;
}

function getIpPool() {

    $v4_pool = getIp4Pool();
    $v6_pool = getIp6Pool();

    return array_merge_recursive($v4_pool, $v6_pool);
}

?>