On Tue, 2011-04-19 at 11:17 +0800, Amos Kong wrote:
> Script is used to setup/remove of private bridge
> it provides dhcp service to guests by dnsmasq.
Ok, this is a great start! I'd rather have this as python code as part
of the framework, so I'll play with it a little and we can get this
going.
Jason, would you please re-send that patchset that removes the need for
the qemu-ifup script? We can make everything work together and deliver a
good experience for users and completely getting rid of user mode for
ever and ever :)
> Signed-off-by: Amos Kong <ak...@redhat.com>
> ---
> client/tests/kvm/scripts/set_private_br.sh | 53
> ++++++++++++++++++++++++++++
> 1 files changed, 53 insertions(+), 0 deletions(-)
> create mode 100755 client/tests/kvm/scripts/set_private_br.sh
>
> diff --git a/client/tests/kvm/scripts/set_private_br.sh
> b/client/tests/kvm/scripts/set_private_br.sh
> new file mode 100755
> index 0000000..4c4cff0
> --- /dev/null
> +++ b/client/tests/kvm/scripts/set_private_br.sh
> @@ -0,0 +1,53 @@
> +#!/bin/bash
> +#
> +# Author: Amos Kong <kongjian...@gmail.com>
> +# Date: Apr 14, 2011
> +# Description: this script is used to create/delete a private bridge,
> +# launch a dhcp server on the bridge by dnsmasq.
> +#
> +# @ ./set_private_br.sh $bridge_name $subnet_prefix
> +# @ ./set_private_br.sh vbr0 192.168.33
> +
> +brname='vbr0'
> +subnet='192.168.33'
> +
> +add_br()
> +{
> + echo "add new private bridge: $brname"
> + /usr/sbin/brctl show |egrep "\b$brname\b" && exit
> + /usr/sbin/brctl addbr $brname
> + echo 1 > /proc/sys/net/ipv4/ip_forward
> + /usr/sbin/brctl stp $brname on
> + /usr/sbin/brctl setfd $brname 0
> + ifconfig $brname $subnet.1 up
> + # Add forward rule, then guest can access public network
> + iptables -t nat -A POSTROUTING -s $subnet.254/24 ! -d $subnet.254/24 -j
> MASQUERADE
> + /etc/init.d/dnsmasq stop
> + dnsmasq --strict-order --bind-interfaces --listen-address $subnet.1
> --dhcp-range $subnet.1,$subnet.254 --pid-file=/tmp/dnsmasq.pid
> +}
> +
> +del_br()
> +{
> + echo "cleanup bridge setup"
> + kill -9 `cat /tmp/dnsmasq.pid`
> + ifconfig $brname down
> + /usr/sbin/brctl delbr $brname
> + iptables -t nat -D POSTROUTING -s $subnet.254/24 ! -d $subnet.254/24 -j
> MASQUERADE
> +}
> +
> +
> +if [ $# = 0 ]; then
> + echo "./set_private_br.sh add|del [brname] [subnet]"
> + exit
> +fi
> +if [ $# > 1 ]; then
> + brname="$2"
> +fi
> +if [ $# > 2 ]; then
> + subnet="$3"
> +fi
> +if [ $1 = 'add' ]; then
> + add_br
> +elif [ $1 = 'del' ]; then
> + del_br 2>/dev/null
> +fi
>
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