s390-tools/iucv_configure.suse

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#! /bin/sh
#
# iucv_configure
#
# Configures a z/VM IUCV network adapter
#
# Usage:
# iucv_configure <peer_userid> <online>
#
# peer_userid = z/VM userid of the IUCV peer
# online = 0 to take the device offline
# 1 to bring the device online
#
# Return values:
# 1 sysfs not mounted
# 2 Invalid status for <online>
# 3 Could not create iucv device
# 4 Could not remove iucv device
#
if [ "${DEBUG}" != "yes" ]; then
DEBUG="no"
fi
mesg () {
echo "$@"
}
debug_mesg () {
case "$DEBUG" in
yes) mesg "$@" ;;
*) ;;
esac
}
if [ $# -ne 2 ] ; then
echo "Usage: $0 <peer_userid> <online>"
echo " peer_userid = z/VM userid of the IUCV peer"
echo " online = 0 to take the device offline"
echo " 1 to bring the device online"
exit 1
fi
# Get the mount point for sysfs
while read MNTPT MNTDIR MNTSYS MNTTYPE; do
if test "$MNTSYS" = "sysfs"; then
SYSFS="$MNTDIR"
break;
fi
done </proc/mounts
if [ -z "$SYSFS" ]; then
mesg "/sysfs not present"
exit 1
fi
PEER_USERID_LOWER=$1
PEER_USERID=$(echo $1 | tr "a-z" "A-Z")
ONLINE=$2
if [ -z "$PEER_USERID" ] ; then
mesg "No IUCV user name given"
exit 2
fi
if [ -z "$ONLINE" ] ; then
ONLINE=1
fi
_iucv_dir=${SYSFS}/bus/iucv/devices
_iucv_drv=${SYSFS}/bus/iucv/drivers/netiucv
if [ ! -d "$_iucv_drv" ] ; then
modprobe -q netiucv
fi
debug_mesg "Configuring IUCV device ${PEER_USERID}"
for _iucv_dev in $_iucv_dir/netiucv?* ; do
[ -d $_iucv_dev ] || continue
read user < $_iucv_dev/user
if [ "$user" = "$PEER_USERID" ] ; then
# Already configured, ok
iucvdev=${_iucv_dev##*/}
break;
fi
done
if [ -z "$iucvdev" -a $ONLINE -eq 1 ] ; then
echo $PEER_USERID > $_iucv_drv/connection
if [ $? -ne 0 ] ; then
mesg "Unable to connect to $PEER_USERID"
exit 3
fi
for _iucv_dev in $_iucv_dir/netiucv?* ; do
[ -d $_iucv_dev ] || continue
read user < $_iucv_dev/user
if [ "$user" = "$PEER_USERID" ] ; then
iucvdev=${_iucv_dev##*/}
break;
fi
done
if [ "$iucvdev" ] ; then
debug_mesg "Configured device $iucvdev"
fi
elif [ "$iucvdev" -a $ONLINE -eq 0 ] ; then
for _net_dev in $_iucv_dir/$iucvdev/net/* ; do
[ -d $_net_dev ] || continue
netdev=${_net_dev##*/}
break;
done
if [ "$netdev" ] ; then
echo $netdev > $_iucv_drv/remove
if [ $? -ne 0 ] ; then
mesg "Unable to remove device $netdev"
exit 4
else
debug_mesg "Removed device $iucvdev"
rm -f /etc/udev/rules.d/51-iucv-$PEER_USERID.rules /etc/udev/rules.d/51-iucv-$PEER_USERID_LOWER.rules
iucvdev=
fi
fi
fi
if [ "$iucvdev" ] ; then
cat > /etc/udev/rules.d/51-iucv-$PEER_USERID.rules <<EOF
ACTION=="add", SUBSYSTEM=="subsystem", KERNEL=="iucv", RUN+="/sbin/modprobe netiucv"
ACTION=="add", SUBSYSTEM=="drivers", KERNEL=="netiucv", ATTR{connection}="$PEER_USERID"
EOF
fi
exit