From: Alan T. DeKok <aland@freeradius.org>
Date: Thu, 3 Sep 2015 19:13:09 +0000 (-0400)
Subject: Notes about lease queries
X-Git-Tag: release_3_0_10~171
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=53e2862789da90a6a1414d379c298a27bebc4553;p=thirdparty%2Ffreeradius-server.git

Notes about lease queries
---

diff --git a/raddb/sites-available/dhcp b/raddb/sites-available/dhcp
index bfca95a5e08..595b1c29acd 100644
--- a/raddb/sites-available/dhcp
+++ b/raddb/sites-available/dhcp
@@ -263,6 +263,72 @@ dhcp DHCP-Release {
 }
 
 
+dhcp DHCP-Lease-Query {
+	#  The thing being queried for is implicit
+	#  in the packets.
+
+	# has MAC, asking for IP, etc.
+	if (&DHCP-Client-Hardware-Address) {
+		# look up MAC in database
+	}
+
+	# has IP, asking for MAC, etc.
+	elsif (&DHCP-Your-IP-Address) {
+		# look up IP in database
+	}
+
+	# has host name, asking for IP, MAC, etc.
+	elsif (&DHCP-Client-Identifier) {
+		# look up identifier in database
+	}
+	else {
+		update reply {
+			&DHCP-Message-Type = DHCP-Lease-Unknown
+		}
+
+		ok
+
+		# stop processing
+		return
+	}
+
+	#
+	#  We presume that the database lookup returns "notfound"
+	#  if it can't find anything.
+	#
+	if (notfound) {
+		update reply {
+			&DHCP-Message-Type = DHCP-Lease-Unknown
+		}
+		ok
+		return
+	}
+
+	#
+	#	Add more logic here.  Is the lease inactive?
+	#	If so, respond with DHCP-Lease-Unassigned.
+	#
+	#	Otherwise, respond with DHCP-Lease-Active
+	#
+
+	#
+	#	Also be sure to return ALL information about
+	#	the lease.
+	#
+
+	#
+	#	The reply types are:
+	#
+	#	DHCP-Lease-Unknown
+	#	DHCP-Lease-Active
+	#	DHCP-Lease-Unassigned
+	#
+	update reply {
+		&DHCP-Message-Type = DHCP-Lease-Unassigned
+	}
+
+}
+
 }
 
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