merge...

tools/examples/network-bridge

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/sh -x
 #============================================================================
 # Default Xen network start/stop script.
 # Xend calls a network script when it starts.
@@ -176,26 +176,40 @@ op_start () {
     fi
 
     if ifconfig veth0 2>/dev/null | grep -q veth0 ; then
-        # Propagate MAC address and ARP responsibilities to virtual interface.
-        mac=`ifconfig ${netdev} | grep HWadd | sed -e 's/.*\(..:..:..:..:..:..\).*/\1/'`
-        ifconfig veth0 down
-        ifconfig veth0 hw ether ${mac}
-        ifconfig veth0 arp up
-        transfer_addrs ${netdev} veth0
-        transfer_routes ${netdev} veth0
-        del_addrs ${netdev}
-        ifconfig ${netdev} -arp down
-        ifconfig ${netdev} hw ether fe:ff:ff:ff:ff:ff up
-        # Bring up second half of virtual device and attach it to the bridge.
-        ifconfig vif0.0 up
-        add_to_bridge ${bridge} vif0.0
+	mac=`ifconfig ${netdev} | grep HWadd | sed -e 's/.*\(..:..:..:..:..:..\).*/\1/'`
+	if ! ifdown ${netdev} ; then
+		# if ifup didn't work, see if we have an ip= on cmd line
+		if egrep 'ip=[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:' /proc/cmdline ; 
+		then
+                        kip=`sed -e 's!.*ip=\([0-9]\+\.[0-9]\+\.[0-9]\+\.[0-9]\+\):.*!\1!' /proc/cmdline`
+                        kmask=`sed -e 's!.*ip=[^:]*:[^:]*:[^:]*:\([^:]*\):.*!\1!' /proc/cmdline` 
+                        kgate=`sed -e 's!.*ip=[^:]*:[^:]*:\([^:]*\):.*!\1!' /proc/cmdline`
+			ifconfig ${netdev} 0.0.0.0 down
+		fi
+	fi
+	ip link set ${netdev} name p${netdev}
+	ip link set veth0 name eth0
+	ifconfig p${netdev} -arp down
+	ifconfig p${netdev} hw ether fe:ff:ff:ff:ff:ff
+	ifconfig ${netdev} hw ether ${mac}
+	add_to_bridge ${bridge} vif0.0
+	add_to_bridge ${bridge} p${netdev}
+	ip link set vif0.0 up
+	ip link set p${netdev} up
+	if ! ifup ${netdev} ; then
+		if [ ${kip} ] ; then
+			# use the addresses we grocked from /proc/cmdline	
+			ifconfig ${netdev} ${kip} 
+			[ ${kmask} ] && ifconfig ${netdev} netmask ${kmask} 
+			ifconfig ${netdev} up
+			[ ${kgate} ] && ip route add default via ${kgate}	
+		fi
+        fi
     else
-        transfer_addrs ${netdev} ${bridge}
+	# old style without veth0
+	transfer_addrs ${netdev} ${bridge}
         transfer_routes ${netdev} ${bridge}
     fi
-
-    # Attach the real interface to the bridge.
-    add_to_bridge ${bridge} ${netdev}
     
     if [ ${antispoof} == 'yes' ] ; then
         antispoofing ${netdev} ${bridge}

tools/examples/xend-config.sxp

@@ -28,7 +28,7 @@
 
 ## Use the following if VIF traffic is bridged.
 # The script used to start/stop networking for xend.
-(network-script    network)
+(network-script    network-bridge)
 # The default bridge that virtual interfaces should be connected to.
 (vif-bridge        xen-br0)
 # The default script used to control virtual interfaces.