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[vsys-scripts.git] / exec / setup-link

diff --git a/exec/setup-link b/exec/setup-link
new file mode 100755 (executable)
index 0000000..e5cbd2f
--- /dev/null
+++ b/exec/setup-link
@@ -0,0 +1,96 @@
+#!/bin/sh +x
+
+IP=/sbin/ip
+
+SLICE=$1
+SLICEID=`id -u $SLICE`
+read INDEX
+read REMOTE
+read KEY
+
+LINK=${KEY}if${INDEX}
+
+modprobe ip_gre
+modprobe etun
+
+### Setup EGRE tunnel
+EGRE=d$LINK
+$IP tunnel add $EGRE  mode gre/eth remote $REMOTE key $KEY
+$IP link set $EGRE up
+
+### Setup etun
+ETUN0=a$LINK
+ETUN1=b$LINK
+echo $ETUN0,$ETUN1 > /sys/module/etun/parameters/newif
+ifconfig $ETUN0 mtu 1458 up
+ifconfig $ETUN1 up
+
+### Setup bridge
+BRIDGE=c$LINK
+brctl addbr $BRIDGE
+brctl addif $BRIDGE $EGRE 
+brctl addif $BRIDGE $ETUN1
+ifconfig $BRIDGE up
+
+### Setup iptables so that packets are visible in the vserver
+iptables -t mangle -A FORWARD -o $BRIDGE -j MARK --set-mark $SLICEID
+
+### Create "grab link" script
+GRAB=/vsys/local_grab-$ETUN0
+echo $SLICE > $GRAB.acl 
+rm -f $GRAB
+cat > $GRAB <<EOF
+#!/bin/sh
+
+read PID
+
+chcontext --ctx 1 -- echo \$PID > /sys/class/net/$ETUN0/new_ns_pid 
+EOF
+chmod +x $GRAB
+
+### Create script for setting link rate
+BIND=/vsys/local_rate-$ETUN0
+echo $SLICE > $BIND.acl 
+rm -f $BIND
+cat > $BIND <<EOF
+#!/bin/sh
+
+read rt
+
+tc qdisc add dev $EGRE root handle 1: htb default 10
+tc class add dev $EGRE parent 1: classid 1:10 htb rate \$rt ceil \$rt
+
+rm -rf $BIND.acl 
+touch $BIND.acl 
+
+EOF
+chmod +x $BIND
+
+### Create "delete link" script
+DELETE=/vsys/local_delete-$ETUN0
+echo $SLICE > $DELETE.acl 
+rm -f $DELETE
+cat > $DELETE <<EOF
+#!/bin/sh
+
+read NULL
+
+# Remove iptables rule
+iptables -t mangle -D FORWARD -o $BRIDGE -j MARK --set-mark $SLICEID
+
+# Get rid of etun devices, only need name of one of them
+echo $ETUN1 > /sys/module/etun/parameters/delif
+
+# Get rid of bridge
+ifconfig $BRIDGE down
+brctl delbr $BRIDGE
+
+# Get rid of EGRE tunnel
+ip tunnel del $EGRE
+
+# Clean up files
+rm -f $GRAB $GRAB.acl
+rm -f $DELETE $DELETE.acl
+rm -f $BIND $BIND.acl
+EOF
+chmod +x $DELETE