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<?php defined('SYSPATH') or die('No direct script access.');
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/*
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* This file is part of open source system FreenetIS
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* and it is release under GPLv3 licence.
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*
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* More info about licence can be found:
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* http://www.gnu.org/licenses/gpl-3.0.html
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*
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* More info about project can be found:
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* http://www.freenetis.org/
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*
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*/
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/**
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* Subnet is part of net grouped to clouds.
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*
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* @package Model
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*
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* @property integer $id
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* @property integer $OSPF_area_id
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* @property string $name
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* @property string $network_address
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* @property string $netmask
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* @property integer $redirect
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* @property integer $dhcp
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* @property boolean $dhcp_expired
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* @property integer $dns
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* @property Subnets_owner_Model $subnets_owner
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* @property ORM_Iterator $clouds
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* @property ORM_Iterator $ip_addresses
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* @property ORM_Iterator $allowed_subnets
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* @property ORM_Iterator $connection_requests
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*/
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class Subnet_Model extends ORM
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{
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protected $has_one = array('subnets_owner');
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protected $has_many = array('ip_addresses', 'allowed_subnets', 'connection_requests');
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protected $has_and_belongs_to_many = array('clouds');
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/**
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* Sets all subnets as (not) expired.
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*
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* @param int $flag expired (1) or not (0) [optional]
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*/
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public function set_expired_all_subnets($flag = 1)
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{
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$this->db->query("
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UPDATE subnets
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SET dhcp_expired = ?
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WHERE dhcp = 1
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", $flag);
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}
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/**
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* Sets subnets as (not) expired.
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*
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* @param array|int $subnets Multiple subnet IDs or a single subnet ID
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* @param int $flag expired (1) or not (0) [optional]
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*/
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public function set_expired_subnets($subnets, $flag = 1)
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{
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if (!is_array($subnets))
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{
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$subnets = array($subnets);
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}
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if (count($subnets))
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{
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$this->db->query("
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UPDATE subnets s
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SET s.dhcp_expired = ?
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WHERE s.dhcp > 0 AND
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s.id IN (" . implode(',', array_map('intval', $subnets)) . ")
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", $flag);
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}
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}
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/**
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* Sets subnets of device as (not) expired
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*
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* @author Michal Kliment <kliment@freenetis.org>
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* @param type $device_id ID of device
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* @param type $flag sexpired (1) or not (0) [optional]
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*/
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public function set_expired_subnets_of_device($device_id, $flag = 1)
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{
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$this->db->query("
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UPDATE subnets s
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JOIN ip_addresses ip ON ip.subnet_id = s.id AND ip.gateway = 1
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JOIN ifaces i ON ip.iface_id = i.id
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SET s.dhcp_expired = ?
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WHERE s.dhcp > 0 AND i.device_id = ?
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", array($flag, $device_id));
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}
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/**
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* Check if any of device subnet on that the device is gateway is expired
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*
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* @param int $device_id
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* @return boolean
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*/
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public function is_any_subnet_of_device_expired($device_id)
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{
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return $this->db->query("
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SELECT COUNT(*) AS c
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FROM ifaces i
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JOIN ip_addresses ip ON i.id = ip.iface_id
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JOIN subnets s ON s.id = ip.subnet_id
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WHERE i.device_id = ? AND s.dhcp > 0 AND s.dhcp_expired > 0
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AND ip.gateway > 0
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", $device_id)->current()->c > 0;
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}
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/**
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* Check if the MAC address is unique in the subnet.
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*
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* @param string $mac MAC address
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* @param int $ip_address_id Iface ID - for edit purposes
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* @param int $subnet_id Subnet id [Optional - deafult self ID]
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* @return bool
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*/
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public function is_mac_unique_in_subnet($mac, $ip_address_id = NULL, $subnet_id = NULL)
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{
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if ($subnet_id === NULL)
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{
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$subnet_id = $this->id;
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}
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$ip_address = new Ip_address_Model($ip_address_id);
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$max_count = 0;
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if ($ip_address && $ip_address->id && ($ip_address->iface->mac == $mac))
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{
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$max_count = 1;
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}
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$result = $this->db->query("
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SELECT COUNT(*) AS count
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FROM subnets s
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JOIN ip_addresses ip ON ip.subnet_id = s.id
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JOIN ifaces i ON i.id = ip.iface_id
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WHERE s.id = ? AND i.mac = ?
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", $subnet_id, $mac);
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return ($result->count() && $result->current()->count <= $max_count);
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}
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/**
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* Gets mask and net of subnet
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*
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* @param integer $subnet_id
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* @return ORM_Iterator
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*/
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public function get_net_and_mask_of_subnet($subnet_id = NULL)
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{
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if (empty($subnet_id))
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{
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$subnet_id = $this->id;
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}
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return $this->select(
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"inet_aton(network_address) as net",
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"32-log2((~inet_aton(netmask) & 0xffffffff) + 1) as mask"
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)->where('id', $subnet_id)
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->find();
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}
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/**
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* Gets redirected ranges.
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* Any IP address belonging to these subnet ranges can be redirected.
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*
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* @see Web_interface_Controller
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* @return Mysql_Result
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*/
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public function get_redirected_ranges()
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{
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return $this->db->query("
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SELECT DISTINCT CONCAT(
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network_address, '/',
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32-log2((~inet_aton(netmask) & 0xffffffff) + 1)
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) AS subnet_range
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FROM subnets
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WHERE redirect = 1
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ORDER BY INET_ATON(network_address)
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");
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}
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/**
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* Function counts all subnets specified by filter.
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*
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* @param array $filter_values
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* @return integer
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*/
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public function count_all_subnets($filter_sql = '')
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{
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return $this->get_all_subnets(NULL, NULL, 'id', 'asc', $filter_sql)
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->count();
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}
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/**
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* Function gets all subnets specified by filter.
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*
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* @param integer $limit_from
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* @param integer $limit_results
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* @param string $order_by
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* @param string $order_by_direction
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* @param array $filter_values
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* @return Mysql_Result
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*/
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public function get_all_subnets($limit_from = 0, $limit_results = NULL,
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$order_by = 'id', $order_by_direction = 'ASC', $filter_sql = '')
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{
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$where = '';
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$limit = '';
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$order_by = $this->db->escape_column($order_by);
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// order by direction check
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if (strtolower($order_by_direction) != 'desc')
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{
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$order_by_direction = 'asc';
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}
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// filter
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if ($filter_sql != '')
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$where = "WHERE $filter_sql";
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// limit is set
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if ($limit_results)
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$limit = "LIMIT ".intval($limit_from) . "," . intval($limit_results);
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// query
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return $this->db->query("
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SELECT * FROM
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(
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SELECT s.id, s.id AS subnet_id, s.redirect, s.name AS subnet_name,
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CONCAT(network_address,'/', 32-log2((~inet_aton(netmask) & 0xffffffff) + 1)) AS cidr_address,
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INET_ATON(network_address) AS cidr,
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network_address, netmask,
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IFNULL(ROUND((
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SELECT COUNT(*)
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FROM ip_addresses
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WHERE subnet_id = s.id
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)/((~inet_aton(s.netmask) & 0xffffffff)+1)*100,1),0) AS used,
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m.id AS member_id, m.name AS member_name, dhcp, dns, qos
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FROM subnets s
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LEFT JOIN subnets_owners so ON s.id = so.subnet_id
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LEFT JOIN members m ON so.member_id = m.id
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) s
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$where
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ORDER BY $order_by $order_by_direction
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$limit
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");
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}
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/**
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* Gets clouds of subnet
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*
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* @param integer $subnet_id
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* @return Mysql_Result
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*/
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public function get_clouds_of_subnet($subnet_id)
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{
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return $this->db->query("
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SELECT c.*
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FROM clouds_subnets cs
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LEFT JOIN clouds c ON c.id = cs.cloud_id
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WHERE cs.subnet_id = ?
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ORDER BY c.name
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", $subnet_id);
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}
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/**
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* Function finds subnet to which given ip address belongs to.
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*
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* @param string $ip_address
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* @return Database_Result
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*/
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public function get_subnet_of_ip_address($ip_address)
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{
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$result = $this->db->query("
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SELECT * FROM subnets
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WHERE inet_aton(netmask) & inet_aton(?) = inet_aton(network_address)
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", $ip_address);
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return ($result && $result->count()) ? $result->current() : null;
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}
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/**
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* Function tries to find subnet of user. Used in devices/add.
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*
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* @param integer $user_id
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* @return Database_Result
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*/
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public function get_subnet_of_user($user_id)
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{
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$result = $this->db->query("
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SELECT DISTINCT s.id, s.name
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FROM subnets s
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JOIN ip_addresses ip ON ip.subnet_id = s.id
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JOIN ifaces i ON i.id = ip.iface_id
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JOIN devices d ON d.id = i.device_id
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WHERE d.user_id = ?
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", $user_id);
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return ($result && $result->count()) ? $result->current() : null;
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}
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/**
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* Function gets items of subnet to export.
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*
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* @param integer $subnet_id
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* @return Mysql_Result
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*/
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public function get_items_of_subnet($subnet_id)
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{
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return $this->db->query("
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SELECT su.id, su.name AS subnet_name, ip.ip_address,
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i.mac, l.name AS link_name, d.name AS device_name,
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IFNULL(f.translated_term, e.value) AS device_type,
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u.name AS user_name, u.surname, m.name AS member_name,
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GROUP_CONCAT(vs.variable_symbol) AS variable_symbol, m.entrance_date, st.street, ap.street_number,
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t.town, t.quarter, t.zip_code, m.comment
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FROM subnets su
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LEFT JOIN ip_addresses ip ON ip.subnet_id = su.id
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LEFT JOIN ifaces i ON i.id = ip.iface_id
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LEFT JOIN links l ON l.id = i.link_id
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LEFT JOIN devices d ON d.id = i.device_id
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LEFT JOIN enum_types e on d.type = e.id
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LEFT JOIN translations f ON lang = ? AND e.value = f.original_term
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LEFT JOIN users u ON u.id = d.user_id
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LEFT JOIN members m ON m.id = u.member_id
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LEFT JOIN address_points ap ON ap.id = m.address_point_id
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LEFT JOIN towns t ON t.id = ap.town_id
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LEFT JOIN streets st ON st.id = ap.street_id
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LEFT JOIN accounts a ON a.member_id = m.id
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LEFT JOIN variable_symbols vs ON vs.account_id = a.id
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WHERE su.id = ?
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GROUP BY ip_address
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ORDER BY inet_aton(ip_address)
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", Config::get('lang'), $subnet_id);
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}
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/**
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* Function gets all subnets of the ip prefix.
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*
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* @author Lubomir Buben
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* @param string $ip_prefix
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* @return Mysql_Result
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*/
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public function get_subnet_of_ip_prefix($ip_prefix)
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{
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return $this->db->query("
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SELECT s.id
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FROM subnets s
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WHERE s.network_address LIKE ? COLLATE utf8_general_ci
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", "$ip_prefix%");
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}
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/**
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* Function gets phone numbers and names of users of subnet to export address book.
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*
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* @author Lubomir Buben
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* @param integer $subnet_id
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* @return Mysql_Result
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*/
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public function get_phones_and_names_of_subnet($subnet_id)
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{
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return $this->db->query("
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SELECT DISTINCT(co.value) as phone, CONCAT(u.surname,' ',u.name) as name, u.id
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FROM subnets su
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LEFT JOIN ip_addresses ip ON ip.subnet_id = su.id
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LEFT JOIN ifaces i ON i.id = ip.iface_id
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LEFT JOIN devices d ON d.id = i.device_id
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LEFT JOIN users u ON u.id = d.user_id
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LEFT JOIN members m ON m.id = u.member_id
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LEFT JOIN users_contacts uc ON uc.user_id = u.id
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LEFT JOIN contacts co ON co.id = uc.contact_id
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WHERE su.id = ? AND co.type = ? AND m.id <> 1 AND m.locked <> 1;
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", array($subnet_id, Contact_Model::TYPE_PHONE));
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}
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/**
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* Function gets phone numbers of users of subnet.
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*
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* @author Sevcik Roman
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* @param integer $subnet_id
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* @return Mysql_Result
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*/
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public function get_phones_of_subnet($subnet_id)
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{
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return $this->db->query("
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SELECT DISTINCT (co.value)
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FROM subnets su
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LEFT JOIN ip_addresses ip ON ip.subnet_id = su.id
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LEFT JOIN ifaces i ON i.id = ip.iface_id
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LEFT JOIN devices d ON d.id = i.device_id
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LEFT JOIN users u ON u.id = d.user_id
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LEFT JOIN members m ON m.id = u.member_id
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LEFT JOIN users_contacts uc ON uc.user_id = u.id
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LEFT JOIN contacts co ON co.id = uc.contact_id
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WHERE su.id = ? AND co.type = ? AND m.id <> 1 AND m.locked <> 1;
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", array($subnet_id, Contact_Model::TYPE_PHONE));
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}
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/**
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* Returns all subnets without allowed subnets of member
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*
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* @author Michal Kliment
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* @param integer $member_id
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* @return Mysql_Result
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*/
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public function get_all_subnets_without_allowed_subnets_of_member ($member_id)
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{
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return $this->db->query("
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SELECT
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s.id,
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CONCAT(network_address,'/', 32-log2((~inet_aton(netmask) & 0xffffffff) + 1), ': ',s.name) AS name,
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inet_aton(network_address) AS net
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FROM subnets s
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WHERE s.id NOT IN (SELECT a.subnet_id FROM allowed_subnets a WHERE a.member_id = ?)
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ORDER BY net
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", array($member_id));
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}
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/**
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* Returns subnet by ip address without member's allowed subnets
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*
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* @author Michal Kliment
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* @param integer $member_id
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* @param string $ip_address
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* @return Mysql_Result object
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*/
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public function get_subnet_without_allowed_subnets_of_member_by_ip_address($member_id, $ip_address)
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{
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$result = $this->db->query("
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SELECT *
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FROM subnets s
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WHERE inet_aton(netmask) & inet_aton(?) = inet_aton(network_address) AND
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s.id NOT IN (
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SELECT a.subnet_id
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FROM allowed_subnets a
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WHERE a.member_id = ?
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)
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", array($ip_address, $member_id));
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return ($result && $result->count()) ? $result->current() : null;
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}
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/**
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* Gets list of subnets ordered by net for dropdown
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*
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* @author Ondřej Fibich
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* @return array[string]
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*/
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public function select_list_by_net()
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{
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// get subnets
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$subnets = $this->db->query("
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SELECT id, name, network_address as net_str,
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32-log2((~inet_aton(netmask) & 0xffffffff) + 1) as mask
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FROM subnets s
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ORDER BY INET_ATON(s.network_address)
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");
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// array
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$arr_subnets = array();
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// for each subnet
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foreach ($subnets as $subnet)
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{
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$arr_subnets[$subnet->id] = $subnet->net_str.'/'. $subnet->mask.': '.$subnet->name;
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}
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// result
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return $arr_subnets;
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}
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/**
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* Checks of overlaps of subnets
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*
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* @author Michal Kliment
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* @param string $network_address
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* @param string $netmask
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* @param type $subnet_id
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* @return bool
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*/
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public function check_overlaps_of_subnets ($network_address, $netmask, $subnet_id = NULL)
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{
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$where = "";
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if ($subnet_id)
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$where = "WHERE id <> ".intval($subnet_id);
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$results = $this->db->query("
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SELECT COUNT(*) AS total FROM
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(
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SELECT
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INET_ATON(network_address) AS start,
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INET_ATON(network_address) +
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(~inet_aton(netmask) & 0xffffffff) + 1 AS end
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FROM subnets s
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$where
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) s
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WHERE
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(
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(INET_ATON(?) >= start AND INET_ATON(?) < end) OR
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(
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(INET_ATON(?)+(~INET_ATON(?) & 0xffffffff)) >= start AND
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(INET_ATON(?)+(~INET_ATON(?) & 0xffffffff)) < end
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)
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) OR
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(
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(start >= INET_ATON(?) AND start <= INET_ATON(?)+(~inet_aton(?) & 0xffffffff)) AND
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(end >= INET_ATON(?) AND end <= INET_ATON(?)+(~inet_aton(?) & 0xffffffff))
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)
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", $network_address, $network_address, $network_address,
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$netmask, $network_address, $netmask,
|
|
$network_address, $network_address, $netmask,
|
|
$network_address, $network_address, $netmask,
|
|
$network_address, $network_address, $netmask);
|
|
|
|
if ($results && $results->current())
|
|
return (bool) $results->current()->total;
|
|
else
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns array of free IP addresses of subnet
|
|
*
|
|
* @author Michal Kliment
|
|
* @return array
|
|
*/
|
|
public function get_free_ip_addresses()
|
|
{
|
|
$arr_ip_addresses = array();
|
|
|
|
if (!$this->id)
|
|
return $arr_ip_addresses;
|
|
|
|
$network = ip2long($this->network_address);
|
|
$total_available = (~ip2long($this->netmask) & 0xffffffff)-1;
|
|
|
|
$ip_queries = array();
|
|
|
|
if ($total_available > 1)
|
|
{
|
|
for ($i = 1; $i <= $total_available; $i++)
|
|
$ip_queries[] = "SELECT '".long2ip($network+$i)."' AS ip_address";
|
|
}
|
|
// for special 1-host subnet (mask /32) add only 1 IP address with network address (#507)
|
|
else
|
|
{
|
|
$ip_queries[] = "SELECT '".long2ip($network)."' AS ip_address";
|
|
}
|
|
|
|
if (!count($ip_queries))
|
|
return array();
|
|
|
|
$ip_query = implode("\nUNION\n", $ip_queries);
|
|
|
|
$ips = $this->db->query("
|
|
SELECT ip_address
|
|
FROM
|
|
(
|
|
$ip_query
|
|
) AS ip
|
|
WHERE ip_address NOT IN
|
|
(
|
|
SELECT ip_address
|
|
FROM ip_addresses
|
|
WHERE subnet_id = ?
|
|
)
|
|
", $this->id);
|
|
|
|
foreach ($ips as $ip)
|
|
$arr_ip_addresses[] = $ip->ip_address;
|
|
|
|
return $arr_ip_addresses;
|
|
}
|
|
|
|
/**
|
|
* Returns all subnets with owner
|
|
*
|
|
* @author Michal Kliment
|
|
* @return Mysql_Result
|
|
*/
|
|
public function get_all_subnets_with_owner ()
|
|
{
|
|
return $this
|
|
->select('subnets.*','subnets_owners.member_id')
|
|
->join('subnets_owners','subnets.id', 'subnets_owners.subnet_id')
|
|
->where('subnets_owners.member_id IS NOT NULL')
|
|
->find_all();
|
|
}
|
|
|
|
/**
|
|
* Returns all members with at least one ip address in subnet
|
|
* @param type $subnet_id
|
|
* @return type
|
|
*/
|
|
public function get_members ($subnet_id = NULL)
|
|
{
|
|
if (!$subnet_id)
|
|
$subnet_id = $this->id;
|
|
|
|
return ORM::factory('member')->get_members_of_subnet($subnet_id);
|
|
}
|
|
|
|
/**
|
|
* Returns all subnets by device
|
|
*
|
|
* @author Michal Kliment
|
|
* @param type $device_id
|
|
* @return type
|
|
*/
|
|
public function get_all_subnets_by_device ($device_id = NULL, $gateway = FALSE)
|
|
{
|
|
if (!$device_id)
|
|
$device_id = $this->id;
|
|
|
|
$where = '';
|
|
|
|
if ($gateway)
|
|
$where .= ' AND gateway = 1';
|
|
|
|
return $this->db->query("
|
|
SELECT
|
|
s.*, ip.gateway,
|
|
32-log2((~inet_aton(netmask) & 0xffffffff) + 1) AS subnet_range,
|
|
ip.ip_address, INET_NTOA(INET_ATON(ip.ip_address)+1) AS subnet_range_start,
|
|
INET_NTOA(INET_ATON(ip.ip_address)+(~inet_aton(netmask) & 0xffffffff)-2) AS subnet_range_end,
|
|
INET_NTOA(INET_ATON(ip.ip_address)+(~inet_aton(netmask) & 0xffffffff)-1) AS broadcast,
|
|
i.name AS iface
|
|
FROM ip_addresses ip
|
|
JOIN subnets s ON s.id = ip.subnet_id
|
|
JOIN ifaces i ON i.id = ip.iface_id
|
|
WHERE i.device_id = ? $where
|
|
ORDER BY INET_ATON(ip_address)
|
|
", $device_id);
|
|
}
|
|
|
|
/**
|
|
* Returns all unique subnets by device
|
|
*
|
|
* @author David Raska
|
|
* @param type $device_id
|
|
* @return type
|
|
*/
|
|
public function get_all_unique_subnets_by_device ($device_id = NULL)
|
|
{
|
|
if (!$device_id)
|
|
$device_id = $this->id;
|
|
|
|
return $this->db->query("
|
|
SELECT s.id
|
|
FROM ip_addresses ip
|
|
JOIN ifaces i ON i.id = ip.iface_id
|
|
JOIN subnets s ON s.id = ip.subnet_id
|
|
JOIN devices d ON d.id = i.device_id
|
|
JOIN users u ON u.id = d.user_id
|
|
WHERE i.device_id = ? AND s.id NOT IN
|
|
(
|
|
SELECT s2.id
|
|
FROM users u2
|
|
JOIN devices d2 ON d2.user_id = u2.id
|
|
JOIN ifaces i2 ON i2.device_id = d2.id
|
|
JOIN ip_addresses ip2 ON ip2.iface_id = i2.id
|
|
JOIN subnets s2 ON s2.id = ip2.subnet_id
|
|
WHERE d2.id <> ? AND u2.member_id = u.member_id
|
|
)
|
|
ORDER BY INET_ATON(ip_address)
|
|
", $device_id, $device_id);
|
|
}
|
|
|
|
/**
|
|
* Returns all dependent subnets of device
|
|
*
|
|
* @author Michal Kliment
|
|
* @param type $device_id
|
|
* @return type
|
|
*/
|
|
public function get_all_dependent_subnets_by_device ($device_id = NULL, $recursive = TRUE)
|
|
{
|
|
$subnets = array();
|
|
|
|
$device_model = new Device_Model();
|
|
|
|
// find all subnets of which device is gateway
|
|
$gateway_subnets = arr::from_objects(
|
|
$this->get_all_subnets_by_device($device_id, TRUE), 'id'
|
|
);
|
|
|
|
$subnets += $gateway_subnets;
|
|
|
|
if ($recursive && count($gateway_subnets))
|
|
{
|
|
// finds all dependent devices of device's subnets
|
|
$dependent_devices = $device_model
|
|
->get_all_service_devices_of_subnets($gateway_subnets);
|
|
|
|
foreach ($dependent_devices as $dependent_device)
|
|
{
|
|
// recursively find dependent subnets of dependent device
|
|
$subnets += $this->get_all_dependent_subnets_by_device($dependent_device->id, $recursive);
|
|
}
|
|
}
|
|
|
|
return $subnets;
|
|
}
|
|
|
|
/**
|
|
* Get gateway of subnet
|
|
*
|
|
* @author Michal Kliment <kliment@freenetis.org>
|
|
* @param type $subnet_id
|
|
* @return type
|
|
*/
|
|
public function get_gateway($subnet_id = NULL)
|
|
{
|
|
if (!$subnet_id && $this->id)
|
|
$subnet_id = $this->id;
|
|
|
|
return ORM::factory('ip_address')->get_gateway_of_subnet($subnet_id);
|
|
}
|
|
|
|
/**
|
|
* Check whether subnet has gateway
|
|
*
|
|
* @author Michal Kliment
|
|
* @param type $subnet_id
|
|
* @return type
|
|
*/
|
|
public function has_gateway($subnet_id = NULL)
|
|
{
|
|
if (!$subnet_id && $this->id)
|
|
$subnet_id = $this->id;
|
|
|
|
$gateway = $this->get_gateway($subnet_id);
|
|
|
|
return ($gateway && $gateway->id);
|
|
}
|
|
|
|
/**
|
|
* This method is used for determining whether the user is connected
|
|
* from registered connection. If he is the null is returned.
|
|
* If not then subnet from which he is connected is searched.
|
|
* If the user may obtain this IP from the searched subnet
|
|
* the ID of subnet is returned. (but there must not be any connection
|
|
* request on this connection already in tha database)
|
|
*
|
|
* @author Ondřej Fibich
|
|
* @param string $ip_address IP address from which the connection request is made
|
|
* @return int|null Subnet ID or null if invalid request was made
|
|
*/
|
|
public function get_subnet_for_connection_request($ip_address)
|
|
{
|
|
$result = $this->db->query("
|
|
SELECT s.subnet_id FROM (
|
|
SELECT s.id AS subnet_id
|
|
FROM subnets s
|
|
WHERE inet_aton(s.netmask) & inet_aton(?) = inet_aton(s.network_address)
|
|
) s
|
|
LEFT JOIN ip_addresses ip ON ip.subnet_id = s.subnet_id AND inet_aton(ip.ip_address) = inet_aton(?)
|
|
WHERE ? NOT IN (
|
|
SELECT cr.ip_address FROM connection_requests cr
|
|
WHERE cr.state = ?
|
|
)
|
|
GROUP BY s.subnet_id
|
|
HAVING COUNT(ip.id) = 0
|
|
", $ip_address, $ip_address, $ip_address, Connection_request_Model::STATE_UNDECIDED);
|
|
|
|
return ($result->count() > 0 ? $result->current()->subnet_id : NULL);
|
|
}
|
|
|
|
/**
|
|
* Returns all subnets with existing gateway
|
|
*
|
|
* @author Michal Kliment
|
|
* @return Mysql_Result
|
|
*/
|
|
public function get_all_subnets_with_gateway()
|
|
{
|
|
return $this->db->query("
|
|
SELECT s.*
|
|
FROM subnets s
|
|
JOIN ip_addresses ip ON ip.subnet_id = s.id AND ip.gateway = 1
|
|
");
|
|
}
|
|
|
|
/**
|
|
* Return all subnets on which DHCP is running and has no gateway.
|
|
*
|
|
* @return Mysql_Result
|
|
*/
|
|
public function get_all_dhcp_subnets_without_gateway()
|
|
{
|
|
return $this->db->query("
|
|
SELECT s.*
|
|
FROM subnets s
|
|
WHERE s.dhcp > 0 AND s.id NOT IN (
|
|
SELECT s2.id
|
|
FROM subnets s2
|
|
JOIN ip_addresses ip ON ip.subnet_id = s2.id
|
|
AND ip.gateway = 1
|
|
)
|
|
");
|
|
}
|
|
|
|
}
|