tora.tcl

CBRP协议（移动adhoc中基于分簇的路由协议）ns2下的源码

# ======================================================================
# Default Script Options
# ======================================================================

set opt(imep)		"ON"			;# Enable/Disable IMEP
set opt(ragent)		Agent/rtProto/TORA
set opt(pos)		NONE			;# Box or NONE

if { $opt(pos) == "Box" } {
	puts "*** TORA using Box configuration..."
}

# ======================================================================
Agent instproc init args {
        $self next $args
}       
Agent/rtProto instproc init args {
        $self next $args
}       
Agent/rtProto/TORA instproc init args {
        $self next $args
}       

Agent/rtProto/TORA set sport_	0
Agent/rtProto/TORA set dport_	0

# ======================================================================

proc create-routing-agent { node id } {
	global ns_ ragent_ tracefd opt

	#
	#  Create the Routing Agent and attach it to port 255.
	#
	set ragent_($id) [new $opt(ragent) $id]
	set ragent $ragent_($id)
	$node attach $ragent 255

	$ragent if-queue [$node set ifq_(0)]	;# ifq between LL and MAC

	# now that the Beacon/Hello messages have been
	# moved to the IMEP layer, this is not necessary.
#	$ns_ at 0.$id "$ragent_($id) start"	;# start BEACON/HELLO Messages

        #
        # XXX: The routing protocol and the IMEP agents needs handles
        # to each other.
        #
        $ragent imep-agent [$node set imep_(0)]
        [$node set imep_(0)] rtagent $ragent

	#
	# Drop Target (always on regardless of other tracing)
	#
	set drpT [cmu-trace Drop "RTR" $node]
	$ragent drop-target $drpT
	
	#
	# Log Target
	#
	set T [new Trace/Generic]
	$T target [$ns_ set nullAgent_]
	$T attach $tracefd
	$T set src_ $id
	$ragent log-target $T

        #
        # XXX: let the IMEP agent use the same log target.
        #
        [$node set imep_(0)] log-target $T
}


proc create-mobile-node { id } {
	global ns_ chan prop topo tracefd opt node_
	global chan prop tracefd topo opt

	set node_($id) [new MobileNode]

	set node $node_($id)
	$node random-motion 0		;# disable random motion
	$node topography $topo

	#
	# This Trace Target is used to log changes in direction
	# and velocity for the mobile node.
	#
	set T [new Trace/Generic]
	$T target [$ns_ set nullAgent_]
	$T attach $tracefd
	$T set src_ $id
	$node log-target $T

	$node add-interface $chan $prop $opt(ll) $opt(mac)	\
		$opt(ifq) $opt(ifqlen) $opt(netif) $opt(ant)

	#
	# Create a Routing Agent for the Node
	#
	create-routing-agent $node $id

	# ============================================================

	if { $opt(pos) == "Box" } {
		#
		# Box Configuration
		#
		set spacing 200
		set maxrow 7
		set col [expr ($id - 1) % $maxrow]
		set row [expr ($id - 1) / $maxrow]
		$node set X_ [expr $col * $spacing]
		$node set Y_ [expr $row * $spacing]
		$node set Z_ 0.0
		$node set speed_ 0.0

		$ns_ at 0.0 "$node_($id) start"
	}
}