[isisd] Add support for Solaris DLPI

2007-08-07 James Carlson <james.d.carlson@sun.com>

	* configure.ac: Added support for separate link-layer access
	  mechanisms in isisd.
	* isis_network.c: split up into isis_bpf.c, isis_dlpi.c, and
	  isis_pfpacket.c, selected by autoconf, and added DLPI support.
	* (general) Fixed to allow compilation and use on Solaris.
diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h
index b5ef269..a7e719f 100644
--- a/isisd/isis_circuit.h
+++ b/isisd/isis_circuit.h
@@ -69,6 +69,7 @@
   struct isis_area *area;	/* back pointer to the area */
   struct interface *interface;	/* interface info from z */
   int fd;			/* IS-IS l1/2 socket */
+  int sap_length;		/* SAP length for DLPI */
   struct nlpids nlpids;
   /*
    * Threads