#!/bin/bash
+# Thierry Parmentelat <thierry.parmentelat@inria.fr>
+# Copyright (C) 2010 INRIA
+#
# Establishment of a runtime environment for a
# virtual machine under QEMU, This script allows the host box
# to share its network connection with qemu-based guests
# Fonction de mise en place du pont
start () {
+ echo "========== $COMMAND: entering start - beg"
+ hostname
+ uname -a
+ ifconfig
+ netstat -rn
+ echo "========== $COMMAND: entering start - end"
+
# take extra arg for ifname, if provided
[ -n "$1" ] && { INTERFACE_LAN=$1; shift ; }
#if we have already configured the same host_box no need to do it again
/sbin/ifconfig $INTERFACE_BRIDGE &> /dev/null && {
- echo "Interface bridge $INTERFACE_BRIDGE already exist."
+ echo "Bridge interface $INTERFACE_BRIDGE already set up - $COMMAND start exiting"
exit 0
}
/sbin/ifconfig $INTERFACE_LAN &>/dev/null || {
echo "Starting udev ..."
/sbin/udevd restart
if modprobe kqemu &> /dev/null ; then
- echo "kqemu loadded"
+ echo "(bridge-init) kqemu loaded"
else
- echo "WARNING : Could not modprobe kqemu"
+ echo "(bridge-init) WARNING : Could not modprobe kqemu"
fi
#Loading the tun/tap model
if modprobe tun ; then
echo "Configuring gateway=$gateway"
route add default gw $gateway
+ echo "========== $COMMAND: exiting start - beg"
+ ifconfig
+ netstat -rn
+ echo "========== $COMMAND: exiting start - end"
}
#Adding a new interface to the bridge: this is used by qemu-ifup
[[ -z "$@" ]] && { echo "Usage: $COMMAND add ifname" ; exit 1 ; }
INTERFACE_LAN=$1; shift
+ echo "========== $COMMAND: entering add - beg"
+ ifconfig
+ netstat -rn
+ echo "========== $COMMAND: entering add - end"
+
echo "Activating link for $INTERFACE_LAN..."
/sbin/ip link set $INTERFACE_LAN up
sleep 1
./iptables.py iptables.pre iptables.post $IP
iptables-restore < iptables.post
+ echo "========== $COMMAND: exiting add - beg"
+
+ ifconfig
+ netstat -rn
+
echo "Installed iptables"
iptables-save
+ echo "========== $COMMAND: exiting add - end"
}
#Stop the bridge and restore the original setting
type -p brctl &> /dev/null || { echo "brctl not found, please install bridge-utils" ; exit 1 ; }
/sbin/ifconfig $INTERFACE_BRIDGE &> /dev/null || {
- echo "Interface bridge $INTERFACE_BRIDGE does not exist."
+ echo "Bridge interface $INTERFACE_BRIDGE does not exist - $COMMAND stop exiting"
exit 0
}
brctl delif $INTERFACE_BRIDGE $INTERFACE_LAN