From 62b6fe80822a34182cccad23cb62c35434a95dd9 Mon Sep 17 00:00:00 2001
From: Thierry Parmentelat <thierry.parmentelat@inria.fr>
Date: Wed, 10 Oct 2012 09:17:00 +0200
Subject: [PATCH] make showmacs - for now this is very patchy

---
 planetlab/exp-tool/Makefile     |  7 +++++--
 planetlab/scripts/sliver-ovs.in | 21 ++++++++++++++++++++-
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/planetlab/exp-tool/Makefile b/planetlab/exp-tool/Makefile
index dc5446664..71e04d3b0 100644
--- a/planetlab/exp-tool/Makefile
+++ b/planetlab/exp-tool/Makefile
@@ -103,7 +103,8 @@ sshs: $(foreach id,$(ALL_NODE_IDS),ssh-$(id))
 .PHONY: sshs
 showdpids: $(foreach id,$(ALL_NODE_IDS),showdpid-$(id))
 .PHONY: showdpids
-
+showmacs: $(foreach id,$(ALL_NODE_IDS),showmac-$(id))
+.PHONY: showmacs
 showports: $(foreach id,$(ALL_NODE_IDS),showports-$(id))
 .PHONY: showports
 
@@ -150,11 +151,13 @@ ssh-%: FORCE
 showdpid-%: FORCE
 	@echo $*_DPID=0x$$( $(SSH) $(HOST_$*) $(SUDO) ovs-vsctl get bridge $(BRIDGE) datapath_id | sed -e 's,",,g')
 
+showmac-%: FORCE
+	@echo $*_MAC=$$( $(SSH) $(HOST_$*) $(SUDO) sliver-ovs show-mac)
+
 showports-%: FORCE
 	@$(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 $(call display,$*)"
diff --git a/planetlab/scripts/sliver-ovs.in b/planetlab/scripts/sliver-ovs.in
index 50ecab855..1a63bf02e 100755
--- a/planetlab/scripts/sliver-ovs.in
+++ b/planetlab/scripts/sliver-ovs.in
@@ -353,13 +353,32 @@ function gmap_probe () {
     echo $! > $pid_file
 }
 
+####################
+# xxx tmp for a demo 
+# there *must* be a better way to do that
+# the thing is the slice sees several tap devices at this point, which is odd...
+# for now I'm searching the tapname based on some hint - the vnet ip range
+VNET=10.0.16
+function show_mac () {
+    ifnames=$(grep : /proc/net/dev | cut -d: -f1 | awk '{print $1;}')
+    tapname=""
+    for ifname in $ifnames; do
+	ifconfig $ifname | grep -q "$VNET" && tapname=$ifname
+    done
+    if [ -z "$tapname" ] ; then
+	echo "no-tap-found-for$VNET"
+	exit 1
+    fi
+    ifconfig $tapname | grep -i hwaddr | awk '{print $5;}'
+}
+
 ####################
 SUPPORTED_SUBCOMMANDS="start stop status 
 start_db stop_db start_switch stop_switch
 create_bridge create_port del_bridge del_port
 show get_local_endpoint set_remote_endpoint
 set_controller del_controller gmap_probe
-get_local_ip get_local_links"
+get_local_ip get_local_links show_mac"
 
 function main () {
 	message="Usage: $COMMAND <subcommand> ...
-- 
2.43.0