182 lines
4.0 KiB
Bash
182 lines
4.0 KiB
Bash
#! /bin/sh
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# Copyright (c) 2004 SUSE LINUX AG Nuernberg, Germany.
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#
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# Submit feedback to http://www.suse.de/feedback/
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#
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# System startup script for XPRAM device driver
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XPRAM_CONFIG_FILE=/etc/sysconfig/xpram
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read_config_file() {
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if [ config_read = 1 ]; then
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return 0
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fi
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file=$XPRAM_CONFIG_FILE
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if [ -s "$file" ]; then
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source $file
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config_read=1
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else
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echo -ne "Cannot read $file: empty or nonexistant! "
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# Means not configured:
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return 6
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fi
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}
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prepare_xpram() {
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if [ -z "$XPRAM_MNTPATH" -o -z "$XPRAM_DEVNODE" ]; then
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echo -n "Cannot mkfs/mount XPRAM: Missing parameters! "
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exit 6
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fi
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grep -q $XPRAM_DEVNODE /proc/mounts 2>&1 > /dev/null
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if [ $? -eq 0 ] ; then
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echo -n "$service: $XPRAM_DEVNODE already mounted! "
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return
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fi
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current_fstype=`vol_id -t $XPRAM_DEVNODE 2> /dev/null`
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if [ $? -ne 0 -o "$XPRAM_FORCE" = "yes" ]
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then
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# Does not contain a valid filesystem/swap space
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if [ "$XPRAM_FSTYPE" = swap ]
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then
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mkswap $XPRAM_DEVNODE
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else
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mkfs -t "$XPRAM_FSTYPE" -b 4096 "$XPRAM_DEVNODE"
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fi
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sleep 1 # workaround
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current_fstype=$XPRAM_FSTYPE
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fi
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if [ ! "$current_fstype" = "$XPRAM_FSTYPE" ]
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then
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echo
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echo -n "Warning: current filessystem and configured filesystem are not the same!"
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exit 6
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fi
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if [ "$XPRAM_FSTYPE" = swap ]
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then
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if [ "$XPRAM_SWAP_PRI" = "" ]
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then
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swapon $XPRAM_DEVNODE
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else
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swapon -p $XPRAM_SWAP_PRI $XPRAM_DEVNODE
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fi
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else
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if [ ! -d "$XPRAM_MNTPATH" ]
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then
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mkdir -p "$XPRAM_MNTPATH"
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fi
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mount "$XPRAM_DEVNODE" "$XPRAM_MNTPATH"
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if [ $? -ne 0 ]
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then
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echo -n "Mount failed with error code $?"
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exit 6
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fi
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fi
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}
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# Return values acc. to LSB for all commands but status:
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# 0 - success
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# 1 - generic or unspecified error
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# 2 - invalid or excess argument(s)
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# 3 - unimplemented feature (e.g. "reload")
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# 4 - insufficient privilege
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# 5 - program is not installed
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# 6 - program is not configured
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# 7 - program is not running
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#
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# Note that starting an already running service, stopping
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# or restarting a not-running service as well as the restart
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# with force-reload (in case signalling is not supported) are
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# considered a success.
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check_config () {
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if [ -z "$XPRAM_MODULE" ]; then
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echo -n "$file: parameters XPRAM_MODULE missing! "
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exit 6
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fi
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}
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quit_disabled() {
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if [ "$XPRAM_START" != "yes" ]; then
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# Config file exists but xpram not enabled, do not complain,
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# but note with exit status 6 that we are not configured.
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echo "xpram not enabled"
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exit 0
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fi
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}
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service="xpram"
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case "$1" in
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start)
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# Read in configuration
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read_config_file || exit 6
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quit_disabled
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check_config
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echo -n "Creating $service device "
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modprobe "$XPRAM_MODULE"
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if [ $? -ne 0 ]; then
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echo -n "- failed to load $XPRAM_MODULE "
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exit 1
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else
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prepare_xpram
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fi
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;;
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stop)
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# Read in configuration
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read_config_file || exit 6
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# check_enabled
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# quit_disabled
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echo -n "Removing $service device "
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check_config
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if [ "$XPRAM_DEVNODE" ]; then
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if grep -q $XPRAM_DEVNODE /proc/mounts; then
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umount $XPRAM_DEVNODE
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fi
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if swapon -s | grep -q $XPRAM_DEVNODE; then
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swapoff $XPRAM_DEVNODE
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fi
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fi
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if grep -q "$XPRAM_MODULE" /proc/modules; then
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rmmod "$XPRAM_MODULE"
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else
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exit 7
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fi
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;;
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status)
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echo -n "Checking $service "
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# Status has a slightly different meaning for the status command:
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# 0 - service running
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# 1 - service dead, but /var/run/ pid file exists
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# 3 - service not running
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# Read in configuration
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read_config_file || exit 3
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check_config
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lsmod | grep -q $XPRAM_MODULE
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if [ $? -eq 0 ]; then
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if [ "$XPRAM_DEVNODE" ]; then
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if ! grep -q $XPRAM_DEVNODE /proc/mounts && ! swapon -s | grep -q $XPRAM_DEVNODE; then
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xpram_result=3
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echo -n "loaded, but $XPRAM_DEVNODE not used"
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exit 3
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fi
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fi
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else
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exit 3
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fi
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;;
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esac
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