static leases use 0, not NULL timeout

fixed static leases

src/charon/plugins/sql/mysql.sql

@@ -158,7 +158,7 @@ CREATE TABLE pools (
   `start` varbinary(16) NOT NULL,
   `end` varbinary(16) NOT NULL,
   `next` varbinary(16) NOT NULL,
-  `timeout` int(10) unsigned DEFAULT NULL,
+  `timeout` int(10) unsigned NOT NULL,
   PRIMARY KEY (`id`),
   UNIQUE (`name`)
 ) ENGINE=MyISAM  DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

src/charon/plugins/sql/sql_attribute.c

@@ -95,7 +95,7 @@ static host_t* get_lease(private_sql_attribute_t *this,
 						"JOIN pools AS p ON l.pool = p.id "
 						"JOIN identities AS i ON l.identity = i.id "
 						"WHERE p.name = ? AND i.type = ? AND i.data = ? "
-						"AND (l.released IS NULL OR p.timeout IS NULL "
+						"AND (l.released IS NULL OR p.timeout = 0 "
 						" OR (l.released >= (? - p.timeout))) "
 						"ORDER BY l.acquired LIMIT 1", DB_TEXT, name,
 						DB_INT, id->get_type(id), DB_BLOB, id->get_encoding(id),
@@ -146,7 +146,7 @@ static host_t* create_lease(private_sql_attribute_t *this,
 	e = this->db->query(this->db,
 						"SELECT pool, address, released, timeout FROM leases "
 						"JOIN pools ON leases.pool = pools.id "
-						"WHERE name = ? "
+						"WHERE name = ? and timeout > 0 "
 						"GROUP BY address HAVING COUNT(released) = COUNT(*) "
 						"AND MAX(released) < (? - timeout) LIMIT 1",
 						DB_TEXT, name, DB_UINT, time(NULL),

src/charon/plugins/sql/sqlite.sql

@@ -159,7 +159,7 @@ CREATE TABLE pools (
   start BLOB NOT NULL,
   end BLOB NOT NULL,
   next BLOB NOT NULL,
-  timeout INTEGER DEFAULT NULL,
+  timeout INTEGER NOT NULL,
   UNIQUE (name)
 );
 DROP INDEX IF EXISTS pools_name;