ia64/xen-unstable

view tools/examples/vif-nat @ 4895:24dfd18ea63e

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bitkeeper revision 1.1159.258.120 (42848bfe8kMyWWcBA64rq7h7l7AyoA)

Shadow code bug fix (found by Ian) that was breaking refcounts, and subsequently
causing migration problems.
author mafetter@fleming.research
date Fri May 13 11:14:06 2005 +0000 (2005-05-13)
parents d2e0edbc060d
children b11e02124f71 0dc3b8b8c298
line source
1 #!/bin/sh
2 #============================================================================
3 # /etc/xen/vif-nat
4 #
5 # Script for configuring a vif in routed-nat mode.
6 # Xend calls a vif script when bringing a vif up or down.
7 # This script is the default - but it can be configured for each vif.
8 #
9 # Example invocation:
10 #
11 # vif-nat up domain=VM1 vif=vif1.0 ip="192.168.0.10/31"
12 #
13 # Usage:
14 # vif-nat (up|down) {VAR=VAL}*
15 #
16 # Vars:
17 #
18 # domain name of the domain the interface is on (required).
19 # vif vif interface name (required).
20 # ip list of IP networks for the vif, space-separated (required).
21 #============================================================================
22
23 # Exit if anything goes wrong
24 set -e
25
26 echo "vif-nat $*"
27
28 # Operation name.
29 OP=$1
30 shift
31
32 # Pull variables in args into environment
33 for arg ; do export "${arg}" ; done
34
35 # Required parameters. Fail if not set.
36 domain=${domain:?}
37 vif=${vif:?}
38 ip=${ip:?}
39
40 # strip /netmask
41 vif_ip=`echo ${ip} | awk -F/ '{print $1}'`
42
43 main_ip=`ifconfig eth0 | grep "inet addr:" | sed -e 's/.*inet addr:\(\w\w*\.\w\w*\.\w\w*\.\w\w*\).*/\1/'`
44
45 # Are we going up or down?
46 case $OP in
47 up)
48 ifconfig ${vif} ${vif_ip} netmask 255.255.255.0 up
49 echo 1 >/proc/sys/net/ipv4/conf/${vif}/proxy_arp
50 iptcmd='-A'
51 ipcmd='a'
52 ;;
53 down)
54 ifconfig ${vif} down
55 iptcmd='-D'
56 ipcmd='d'
57 ;;
58 *)
59 echo 'Invalid command: ' $OP
60 echo 'Valid commands are: up, down'
61 exit 1
62 ;;
63 esac
64
65 ip r ${ipcmd} ${ip} dev ${vif} src ${main_ip}
66 # iptables ${iptcmd} FORWARD -m physdev --physdev-in ${vif} -p udp --sport 68 --dport 67 -j ACCEPT