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freenetis-github/application/models/subnet.php @ b8a40ec0

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<?php defined('SYSPATH') or die('No direct script access.');
/*
* This file is part of open source system FreenetIS
* and it is release under GPLv3 licence.
*
* More info about licence can be found:
* http://www.gnu.org/licenses/gpl-3.0.html
*
* More info about project can be found:
* http://www.freenetis.org/
*
*/

/**
* Subnet is part of net grouped to clouds.
*
* @package Model
*
* @property integer $id
* @property integer $OSPF_area_id
* @property string $name
* @property string $network_address
* @property string $netmask
* @property integer $redirect
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* @property integer $dhcp
* @property boolean $dhcp_expired
* @property integer $dns
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* @property Subnets_owner_Model $subnets_owner
* @property ORM_Iterator $clouds
* @property ORM_Iterator $ip_addresses
* @property ORM_Iterator $allowed_subnets
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* @property ORM_Iterator $connection_requests
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*/
class Subnet_Model extends ORM
{
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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/**
* Sets all subnets as (not) expired.
*
* @param int $flag expired (1) or not (0) [optional]
*/
public function set_expired_all_subnets($flag = 1)
{
$this->db->query("
UPDATE subnets
SET dhcp_expired = ?
WHERE dhcp = 1
", $flag);
}
/**
* Sets subnets as (not) expired.
*
* @param array|int $subnets Multiple subnet IDs or a single subnet ID
* @param int $flag expired (1) or not (0) [optional]
*/
public function set_expired_subnets($subnets, $flag = 1)
{
if (!is_array($subnets))
{
$subnets = array($subnets);
}
if (count($subnets))
{
$this->db->query("
UPDATE subnets s
SET s.dhcp_expired = ?
WHERE s.dhcp > 0 AND
s.id IN (" . implode(',', array_map('intval', $subnets)) . ")
", $flag);
}
}
/**
* Sets subnets of device as (not) expired
*
* @author Michal Kliment <kliment@freenetis.org>
* @param type $device_id ID of device
* @param type $flag sexpired (1) or not (0) [optional]
*/
public function set_expired_subnets_of_device($device_id, $flag = 1)
{
$this->db->query("
UPDATE subnets s
JOIN ip_addresses ip ON ip.subnet_id = s.id AND ip.gateway = 1
JOIN ifaces i ON ip.iface_id = i.id
SET s.dhcp_expired = ?
WHERE s.dhcp > 0 AND i.device_id = ?
", array($flag, $device_id));
}
/**
* Check if any of device subnet on that the device is gateway is expired
*
* @param int $device_id
* @return boolean
*/
public function is_any_subnet_of_device_expired($device_id)
{
return $this->db->query("
SELECT COUNT(*) AS c
FROM ifaces i
JOIN ip_addresses ip ON i.id = ip.iface_id
JOIN subnets s ON s.id = ip.subnet_id
WHERE i.device_id = ? AND s.dhcp > 0 AND s.dhcp_expired > 0
AND ip.gateway > 0
", $device_id)->current()->c > 0;
}
/**
* Check if the MAC address is unique in the subnet.
*
* @param string $mac MAC address
* @param int $ip_address_id Iface ID - for edit purposes
* @param int $subnet_id Subnet id [Optional - deafult self ID]
* @return bool
*/
public function is_mac_unique_in_subnet($mac, $ip_address_id = NULL, $subnet_id = NULL)
{
if ($subnet_id === NULL)
{
$subnet_id = $this->id;
}
$ip_address = new Ip_address_Model($ip_address_id);
$max_count = 0;
if ($ip_address && $ip_address->id && ($ip_address->iface->mac == $mac))
{
$max_count = 1;
}
$result = $this->db->query("
SELECT COUNT(*) AS count
FROM subnets s
JOIN ip_addresses ip ON ip.subnet_id = s.id
JOIN ifaces i ON i.id = ip.iface_id
WHERE s.id = ? AND i.mac = ?
", $subnet_id, $mac);
return ($result->count() && $result->current()->count <= $max_count);
}
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/**
* Gets mask and net of subnet
*
* @param integer $subnet_id
* @return ORM_Iterator
*/
public function get_net_and_mask_of_subnet($subnet_id = NULL)
{
if (empty($subnet_id))
{
$subnet_id = $this->id;
}
return $this->select(
"inet_aton(network_address) as net",
"32-log2((~inet_aton(netmask) & 0xffffffff) + 1) as mask"
)->where('id', $subnet_id)
->find();
}
/**
* Gets redirected ranges.
* Any IP address belonging to these subnet ranges can be redirected.
*
* @see Web_interface_Controller
* @return Mysql_Result
*/
public function get_redirected_ranges()
{
return $this->db->query("
SELECT DISTINCT CONCAT(
network_address, '/',
32-log2((~inet_aton(netmask) & 0xffffffff) + 1)
) AS subnet_range
FROM subnets
WHERE redirect = 1
ORDER BY INET_ATON(network_address)
");
}

/**
* Function counts all subnets specified by filter.
*
* @param array $filter_values
* @return integer
*/
public function count_all_subnets($filter_sql = '')
{
return $this->get_all_subnets(NULL, NULL, 'id', 'asc', $filter_sql)
->count();
}
/**
* Function gets all subnets specified by filter.
*
* @param integer $limit_from
* @param integer $limit_results
* @param string $order_by
* @param string $order_by_direction
* @param array $filter_values
* @return Mysql_Result
*/
public function get_all_subnets($limit_from = 0, $limit_results = NULL,
$order_by = 'id', $order_by_direction = 'ASC', $filter_sql = '')
{
$where = '';
$limit = '';
$order_by = $this->db->escape_column($order_by);
// order by direction check
if (strtolower($order_by_direction) != 'desc')
{
$order_by_direction = 'asc';
}
// filter
if ($filter_sql != '')
$where = "WHERE $filter_sql";
// limit is set
if ($limit_results)
$limit = "LIMIT ".intval($limit_from) . "," . intval($limit_results);
// query
return $this->db->query("
SELECT * FROM
(
SELECT s.id, s.id AS subnet_id, s.redirect, s.name AS subnet_name,
CONCAT(network_address,'/', 32-log2((~inet_aton(netmask) & 0xffffffff) + 1)) AS cidr_address,
INET_ATON(network_address) AS cidr,
network_address, netmask,
IFNULL(ROUND((
SELECT COUNT(*)
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
LEFT JOIN subnets_owners so ON s.id = so.subnet_id
LEFT JOIN members m ON so.member_id = m.id
) s
$where
ORDER BY $order_by $order_by_direction
$limit
");
}
/**
* Gets clouds of subnet
*
* @param integer $subnet_id
* @return Mysql_Result
*/
public function get_clouds_of_subnet($subnet_id)
{
return $this->db->query("
SELECT c.*
FROM clouds_subnets cs
LEFT JOIN clouds c ON c.id = cs.cloud_id
WHERE cs.subnet_id = ?
ORDER BY c.name
", $subnet_id);
}
/**
* Function finds subnet to which given ip address belongs to.
*
* @param string $ip_address
* @return Database_Result
*/
public function get_subnet_of_ip_address($ip_address)
{
$result = $this->db->query("
SELECT * FROM subnets
WHERE inet_aton(netmask) & inet_aton(?) = inet_aton(network_address)
", $ip_address);
return ($result && $result->count()) ? $result->current() : null;
}
/**
* Function tries to find subnet of user. Used in devices/add.
*
* @param integer $user_id
* @return Database_Result
*/
public function get_subnet_of_user($user_id)
{
$result = $this->db->query("
SELECT DISTINCT s.id, s.name
FROM subnets s
JOIN ip_addresses ip ON ip.subnet_id = s.id
JOIN ifaces i ON i.id = ip.iface_id
JOIN devices d ON d.id = i.device_id
WHERE d.user_id = ?
", $user_id);
return ($result && $result->count()) ? $result->current() : null;
}
/**
* Function gets items of subnet to export.
*
* @param integer $subnet_id
* @return Mysql_Result
*/
public function get_items_of_subnet($subnet_id)
{
return $this->db->query("
SELECT su.id, su.name AS subnet_name, ip.ip_address,
i.mac, l.name AS link_name, d.name AS device_name,
IFNULL(f.translated_term, e.value) AS device_type,
u.name AS user_name, u.surname, m.name AS member_name,
GROUP_CONCAT(vs.variable_symbol) AS variable_symbol, m.entrance_date, st.street, ap.street_number,
t.town, t.quarter, t.zip_code, m.comment
FROM subnets su
LEFT JOIN ip_addresses ip ON ip.subnet_id = su.id
LEFT JOIN ifaces i ON i.id = ip.iface_id
LEFT JOIN links l ON l.id = i.link_id
LEFT JOIN devices d ON d.id = i.device_id
LEFT JOIN enum_types e on d.type = e.id
LEFT JOIN translations f ON lang = ? AND e.value = f.original_term
LEFT JOIN users u ON u.id = d.user_id
LEFT JOIN members m ON m.id = u.member_id
LEFT JOIN address_points ap ON ap.id = m.address_point_id
LEFT JOIN towns t ON t.id = ap.town_id
LEFT JOIN streets st ON st.id = ap.street_id
LEFT JOIN accounts a ON a.member_id = m.id
LEFT JOIN variable_symbols vs ON vs.account_id = a.id
WHERE su.id = ?
GROUP BY ip_address
ORDER BY inet_aton(ip_address)
", Config::get('lang'), $subnet_id);
}
/**
* Function gets all subnets of the ip prefix.
*
* @author Lubomir Buben
* @param string $ip_prefix
* @return Mysql_Result
*/
public function get_subnet_of_ip_prefix($ip_prefix)
{
return $this->db->query("
SELECT s.id
FROM subnets s
WHERE s.network_address LIKE ? COLLATE utf8_general_ci
", "$ip_prefix%");
}

/**
* Function gets phone numbers of users of subnet.
*
* @author Sevcik Roman
* @param integer $subnet_id
* @return Mysql_Result
*/
public function get_phones_of_subnet($subnet_id)
{
return $this->db->query("
SELECT DISTINCT (co.value)
FROM subnets su
LEFT JOIN ip_addresses ip ON ip.subnet_id = su.id
LEFT JOIN ifaces i ON i.id = ip.iface_id
LEFT JOIN devices d ON d.id = i.device_id
LEFT JOIN users u ON u.id = d.user_id
LEFT JOIN members m ON m.id = u.member_id
LEFT JOIN users_contacts uc ON uc.user_id = u.id
LEFT JOIN contacts co ON co.id = uc.contact_id
WHERE su.id = ? AND co.type = ? AND m.id <> 1 AND m.locked <> 1;
", array($subnet_id, Contact_Model::TYPE_PHONE));
}

/**
* Returns all subnets without allowed subnets of member
*
* @author Michal Kliment
* @param integer $member_id
* @return Mysql_Result
*/
public function get_all_subnets_without_allowed_subnets_of_member ($member_id)
{
return $this->db->query("
SELECT
s.id,
CONCAT(network_address,'/', 32-log2((~inet_aton(netmask) & 0xffffffff) + 1), ': ',s.name) AS name,
inet_aton(network_address) AS net
FROM subnets s
WHERE s.id NOT IN (SELECT a.subnet_id FROM allowed_subnets a WHERE a.member_id = ?)
ORDER BY net
", array($member_id));
}

/**
* Returns subnet by ip address without member's allowed subnets
*
* @author Michal Kliment
* @param integer $member_id
* @param string $ip_address
* @return Mysql_Result object
*/
public function get_subnet_without_allowed_subnets_of_member_by_ip_address($member_id, $ip_address)
{
$result = $this->db->query("
SELECT *
FROM subnets s
WHERE inet_aton(netmask) & inet_aton(?) = inet_aton(network_address) AND
s.id NOT IN (
SELECT a.subnet_id
FROM allowed_subnets a
WHERE a.member_id = ?
)
", array($ip_address, $member_id));
return ($result && $result->count()) ? $result->current() : null;
}
/**
* Gets list of subnets ordered by net for dropdown
*
* @author Ondřej Fibich
* @return array[string]
*/
public function select_list_by_net()
{
// get subnets
$subnets = $this->db->query("
SELECT id, name, network_address as net_str,
32-log2((~inet_aton(netmask) & 0xffffffff) + 1) as mask
FROM subnets s
ORDER BY INET_ATON(s.network_address)
");
// array
$arr_subnets = array();
// for each subnet
foreach ($subnets as $subnet)
{
$arr_subnets[$subnet->id] = $subnet->net_str.'/'. $subnet->mask.': '.$subnet->name;
}
// result
return $arr_subnets;
}
/**
* Checks of overlaps of subnets
*
* @author Michal Kliment
* @param string $network_address
* @param string $netmask
* @param type $subnet_id
* @return bool
*/
public function check_overlaps_of_subnets ($network_address, $netmask, $subnet_id = NULL)
{
$where = "";
if ($subnet_id)
$where = "WHERE id <> ".intval($subnet_id);
$results = $this->db->query("
SELECT COUNT(*) AS total FROM
(
SELECT
INET_ATON(network_address) AS start,
INET_ATON(network_address) +
(~inet_aton(netmask) & 0xffffffff) + 1 AS end
FROM subnets s
$where
) s
WHERE
(
(INET_ATON(?) >= start AND INET_ATON(?) < end) OR
(
(INET_ATON(?)+(~INET_ATON(?) & 0xffffffff)) >= start AND
(INET_ATON(?)+(~INET_ATON(?) & 0xffffffff)) < end
)
) OR
(
(start >= INET_ATON(?) AND start <= INET_ATON(?)+(~inet_aton(?) & 0xffffffff)) AND
(end >= INET_ATON(?) AND end <= INET_ATON(?)+(~inet_aton(?) & 0xffffffff))
)
", $network_address, $network_address, $network_address,
$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;
$ip_queries = array();
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if ($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";
}
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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
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* @param type $device_id ID of device
* @param type $gateway Returns only subnet where device is gateway
* @param type $dhcp Returns only subnet where DHCP server is runnning
* @return MySQL_Result object
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*/
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public function get_all_subnets_by_device ($device_id = NULL, $gateway = FALSE, $dhcp = FALSE)
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{
if (!$device_id)
$device_id = $this->id;
$where = '';
if ($gateway)
$where .= ' AND gateway = 1';
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if ($dhcp)
$where .= ' AND s.dhcp = 1';
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return $this->db->query("
SELECT
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s.*, s.name AS subnet_name, ip.subnet_id, ip.gateway,
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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,
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INET_NTOA(INET_ATON(ip.ip_address)+(~inet_aton(netmask) & 0xffffffff)-1) AS broadcast,
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i.name AS iface, i.id AS iface_id, i.name AS iface_name
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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;
}
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/**
* 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
)
");
}
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}