From e11741625af584cbc4eba13eea0a2ad1495fb4e0 Mon Sep 17 00:00:00 2001
From: Giuseppe Lettieri <g.lettieri@iet.unipi.it>
Date: Tue, 9 Oct 2012 20:42:57 +0200
Subject: [PATCH] export OpenFlow port numbers

make showports will produce several lines of the form

PORT_src_dst=n

meaning that on node src the port that goes to node dst has OpenFlow id
equal to n.
---
 planetlab/exp-tool/Makefile | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/planetlab/exp-tool/Makefile b/planetlab/exp-tool/Makefile
index 7919aa5d4..dc5446664 100644
--- a/planetlab/exp-tool/Makefile
+++ b/planetlab/exp-tool/Makefile
@@ -104,6 +104,9 @@ sshs: $(foreach id,$(ALL_NODE_IDS),ssh-$(id))
 showdpids: $(foreach id,$(ALL_NODE_IDS),showdpid-$(id))
 .PHONY: showdpids
 
+showports: $(foreach id,$(ALL_NODE_IDS),showports-$(id))
+.PHONY: showports
+
 DBS=$(foreach id,$(ALL_NODE_IDS),cache/db.$(id))
 dbs: $(DBS)
 .PHONY: dbs
@@ -147,6 +150,11 @@ ssh-%: FORCE
 showdpid-%: FORCE
 	@echo $*_DPID=0x$$( $(SSH) $(HOST_$*) $(SUDO) ovs-vsctl get bridge $(BRIDGE) datapath_id | sed -e 's,",,g')
 
+showports-%: FORCE
+	@$(SSH) $(HOST_$*) $(SUDO) ovs-ofctl show $(BRIDGE) \
+		| perl -nle '/(\d+)\(L(.*?)\Q$(SEP)\E(.*?)\):/ && \
+			print "PORT_".("$$2" eq "$*" ? "$$2_$$3" : "$$3_$$2")."=$$1"'
+
 # should probably replace sshcheck
 cache/status.%: FORCE
 	@echo "=== DB and SWITCH processes on $(call display,$*)"
-- 
2.43.0