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cl349@firebug.cl.cam.ac.uk
b93e7f7e8b
Many files:
Make interface to network/block scripts consistent:
- output on stdout is returned to the script caller
- output on stderr is logged at the error level, messages with a '-' prefix
are logged at the debug level and messages with a '*' prefix are logged
at the info level.
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
78 lines
1.5 KiB
Bash
78 lines
1.5 KiB
Bash
#!/bin/sh
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#============================================================================
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# Default Xen network start/stop script when using NAT.
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# Xend calls a network script when it starts.
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# The script name to use is defined in /etc/xen/xend-config.sxp
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# in the network-script field.
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#
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# Usage:
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#
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# network-nat (start|stop|status) {VAR=VAL}*
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#
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# Vars:
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#
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# netdev The gateway interface (default eth0).
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# antispoof Whether to use iptables to prevent spoofing (default no).
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#
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#============================================================================
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# Exit if anything goes wrong.
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set -e
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# First arg is the operation.
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OP=$1
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shift
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# Pull variables in args in to environment.
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for arg ; do export "${arg}" ; done
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netdev=${netdev:-eth0}
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# antispoofing not yet implemented
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antispoof=${antispoof:-no}
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echo "*network-nat $OP netdev=$netdev antispoof=$antispoof" >&2
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op_start() {
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echo 1 >/proc/sys/net/ipv4/ip_forward
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iptables -t nat -A POSTROUTING -o ${netdev} -j MASQUERADE
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}
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op_stop() {
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iptables -t nat -D POSTROUTING -o ${netdev} -j MASQUERADE
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}
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show_status() {
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echo '============================================================'
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ifconfig
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echo ' '
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ip route list
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echo ' '
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route -n
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echo '============================================================'
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}
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case ${OP} in
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start)
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op_start
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;;
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stop)
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op_stop
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;;
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status)
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show_status
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;;
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*)
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echo 'Unknown command: ' ${OP} >&2
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echo 'Valid commands are: start, stop, status' >&2
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exit 1
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esac
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