# -*- text -*-
#
#  ippool-dhcp/sqlite/queries.conf -- SQLite queries for rlm_sqlippool
#
#  $Id: 9458f89353b623907136f2b7ee72536ddabb4be3 $

#
#  This series of queries allocates an IP address
#
#allocate_clear = "\
#	UPDATE ${ippool_table} \
#	SET \
#		nasipaddress = '', \
#		pool_key = 0, \
#		callingstationid = '', \
#		username = '', \
#		expiry_time = NULL \
#	WHERE pool_key = '${pool_key}'"

#
#  This series of queries allocates an IP address
#  (Note: If your pool_key is set to Calling-Station-Id and not NAS-Port
#  then you may wish to delete the "AND nasipaddress = '%{Nas-IP-Address}'
#  from the WHERE clause)
#
allocate_clear = "\
	UPDATE ${ippool_table} \
	SET \
		nasipaddress = '', \
		pool_key = 0, \
		callingstationid = '', \
		username = '', \
		expiry_time = NULL \
	WHERE expiry_time <= datetime(strftime('%%s', 'now') - 1, 'unixepoch') \
	AND nasipaddress = '%{Nas-IP-Address}'"

#
#  The ORDER BY clause of this query tries to allocate the same IP-address
#  which user had last session...
#
allocate_find = "\
	SELECT framedipaddress \
	FROM ${ippool_table} \
	WHERE pool_name = '%{control:${pool_name}}' \
	AND (\
		((expiry_time < datetime('now')) OR expiry_time IS NULL) \
		OR (callingstationid = '%{Calling-Station-Id}') \
		AND expiry_time > datetime('now')\
	) \
	ORDER BY \
		(callingstationid <> '%{Calling-Station-Id}'), \
		expiry_time \
	LIMIT 1"

#
# If you prefer to allocate a random IP address every time, use this query instead
#
#allocate_find = "\
#	SELECT framedipaddress FROM ${ippool_table} \
#	WHERE pool_name = '%{control:${pool_name}}' \
#	AND expiry_time IS NULL \
#	ORDER BY RAND() \
#	LIMIT 1 \
#	FOR UPDATE"

#
#  If an IP could not be allocated, check to see if the pool exists or not
#  This allows the module to differentiate between a full pool and no pool
#  Note: If you are not running redundant pool modules this query may be
#  commented out to save running this query every time an ip is not allocated.
#
pool_check = "\
	SELECT id \
	FROM ${ippool_table} \
	WHERE pool_name='%{control:${pool_name}}' \
	LIMIT 1"

#
#  This is the final IP Allocation query, which saves the allocated ip details
#
allocate_update = "\
	UPDATE ${ippool_table} \
	SET \
		nasipaddress = '%{NAS-IP-Address}', \
		pool_key = '${pool_key}', \
		callingstationid = '%{Calling-Station-Id}', \
		username = '%{User-Name}', \
		expiry_time = datetime(strftime('%%s', 'now') + ${lease_duration}, 'unixepoch') \
	WHERE framedipaddress = '%I' \
	AND expiry_time IS NULL"

#
#  The following queries are not used for DHCP IP assignment.
#

#
#  This series of queries frees an IP number when an accounting START record arrives
#
start_update = "\
	UPDATE ${ippool_table} \
	SET \
		expiry_time = datetime(strftime('%%s', 'now') + ${lease_duration}, 'unixepoch') \
	WHERE nasipaddress = '%{NAS-IP-Address}' \
	AND pool_key = '${pool_key}' \
	AND username = '%{User-Name}' \
	AND callingstationid = '%{Calling-Station-Id}' \
	AND framedipaddress = '%{Framed-IP-Address}'"

#
#  This series of queries frees an IP number when an accounting STOP record arrives
#
stop_clear = "\
	UPDATE ${ippool_table} \
	SET \
		nasipaddress = '', \
		pool_key = 0, \
		callingstationid = '', \
		username = '', \
		expiry_time = NULL \
	WHERE nasipaddress = '%{Nas-IP-Address}' \
	AND pool_key = '${pool_key}' \
	AND username = '%{User-Name}' \
	AND callingstationid = '%{Calling-Station-Id}' \
	AND framedipaddress = '%{Framed-IP-Address}'"

#
#  This series of queries frees an IP number when an accounting ALIVE record arrives
#
alive_update = "\
	UPDATE ${ippool_table} \
	SET \
		expiry_time = datetime(strftime('%%s', 'now') + ${lease_duration}, 'unixepoch') \
	WHERE nasipaddress = '%{Nas-IP-Address}' \
	AND pool_key = '${pool_key}' \
	AND username = '%{User-Name}' \
	AND callingstationid = '%{Calling-Station-Id}' \
	AND framedipaddress = '%{Framed-IP-Address}'"

#
#  This series of queries frees the IP numbers allocate to a
#  NAS when an accounting ON record arrives
#
on_clear = "\
	UPDATE ${ippool_table} \
	SET \
		nasipaddress = '', \
		pool_key = 0, \
		callingstationid = '', \
		username = '', \
		expiry_time = NULL \
	WHERE nasipaddress = '%{Nas-IP-Address}'"

#
#  This series of queries frees the IP numbers allocate to a
#  NAS when an accounting OFF record arrives
#
off_clear = "\
	UPDATE ${ippool_table} \
	SET \
		nasipaddress = '', \
		pool_key = 0, \
		callingstationid = '', \
		username = '', \
		expiry_time = NULL \
	WHERE nasipaddress = '%{Nas-IP-Address}'"
