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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>
67 lines
1.6 KiB
Bash
67 lines
1.6 KiB
Bash
#!/bin/sh
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#============================================================================
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# /etc/xen/vif-nat
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#
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# Script for configuring a vif in routed-nat mode.
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# Xend calls a vif script when bringing a vif up or down.
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# This script is the default - but it can be configured for each vif.
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#
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# Example invocation:
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#
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# vif-nat up domain=VM1 vif=vif1.0 ip="192.168.0.10/31"
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#
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# Usage:
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# vif-nat (up|down) {VAR=VAL}*
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#
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# Vars:
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#
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# domain name of the domain the interface is on (required).
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# vif vif interface name (required).
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# ip list of IP networks for the vif, space-separated (required).
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#============================================================================
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# Exit if anything goes wrong
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set -e
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echo "*vif-nat $*" >&2
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# Operation name.
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OP=$1
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shift
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# Pull variables in args into environment
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for arg ; do export "${arg}" ; done
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# Required parameters. Fail if not set.
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domain=${domain:?}
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vif=${vif:?}
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ip=${ip:?}
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# strip /netmask
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vif_ip=`echo ${ip} | awk -F/ '{print $1}'`
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main_ip=`ifconfig eth0 | grep "inet addr:" | sed -e 's/.*inet addr:\(\w\w*\.\w\w*\.\w\w*\.\w\w*\).*/\1/'`
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# Are we going up or down?
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case $OP in
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up)
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ifconfig ${vif} ${vif_ip} netmask 255.255.255.0 up
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echo 1 >/proc/sys/net/ipv4/conf/${vif}/proxy_arp
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iptcmd='-A'
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ipcmd='a'
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;;
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down)
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ifconfig ${vif} down
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iptcmd='-D'
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ipcmd='d'
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;;
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*)
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echo 'Invalid command: ' $OP >&2
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echo 'Valid commands are: up, down' >&2
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exit 1
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;;
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esac
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ip r ${ipcmd} ${ip} dev ${vif} src ${main_ip}
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# iptables ${iptcmd} FORWARD -m physdev --physdev-in ${vif} -p udp --sport 68 --dport 67 -j ACCEPT
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