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https://github.com/ibm-s390-linux/s390-tools.git
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dumpconf: Move dumpconf tool to scripts directory
Modern distributions use systemd and a corresponding systemd unit file is provided that handles the dumpconf tool. The tool is also the last script left in etc/init.d. Move it to scripts and get rid of the init.d directory altogether. Acked-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Jan Höppner
662
scripts/dumpconf
Executable file
662
scripts/dumpconf
Executable file
@@ -0,0 +1,662 @@
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#!/bin/bash
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### BEGIN INIT INFO
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# Provides: dumpconf
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# Required-Start: $local_fs
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# Required-Stop: $local_fs
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# Should-Start:
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# Should-Stop:
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# Default-Start: 0 1 2 3 5 6
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# Default-Stop:
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# Short-Description: Configure s390 dump feature
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# Description: Configures the s390 dump feature. It uses the configuration file
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# /etc/sysconfig/dumpconf
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# X-Systemd-RemainAfterExit: true
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### END INIT INFO
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# chkconfig: 012356 01 99
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# This script can be either used stand-alone or as System V init script.
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DUMPCONF_BIN=/etc/init.d/dumpconf
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DUMP_CONFIG_FILE=/etc/sysconfig/dumpconf
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CMDFULL=$0
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CMD="dumpconf"
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LOCKFILE=/var/lock/$CMD
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PIDFILE=/run/$CMD.pid
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ERRMSG="Check $DUMP_CONFIG_FILE!"
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RETVAL=0
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BACKGROUND=0
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pr_info()
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{
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if [ $BACKGROUND -eq 0 ]; then
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echo "$@"
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else
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echo "$@" | logger -t dumpconf
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fi
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}
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pr_error()
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{
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if [ $BACKGROUND -eq 0 ]; then
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echo "$@" >&2
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else
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echo "$@" | logger -t dumpconf
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fi
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}
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check_environment()
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{
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if [ ! -f $DUMP_CONFIG_FILE ]; then
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pr_error "no config file found: $DUMP_CONFIG_FILE"
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exit 1
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fi
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if [ "$(cat /proc/filesystems|grep sysfs)" = "" ]; then
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pr_error "no sysfs found"
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exit 1
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fi
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SYSFSDIR=$(cat /proc/mounts|awk '$3=="sysfs"{print $2; exit}')
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if [ "$SYSFSDIR" = "" ]; then
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pr_error "sysfs not mounted"
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exit 1
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fi
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DUMP_CONFIG_DIR=/$SYSFSDIR/firmware/dump
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ON_PANIC_CONFIG_FILE=/$SYSFSDIR/firmware/shutdown_act\
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ions/on_panic
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ON_RESTART_CONFIG_FILE=/$SYSFSDIR/firmware/shutdown_act\
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ions/on_restart
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if [ ! -d $DUMP_CONFIG_DIR ]; then
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pr_info "kernel has no dump on panic support"
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exit 0
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fi
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REIPL_CONFIG_DIR=/$SYSFSDIR/firmware/reipl
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if [ ! -d $REIPL_CONFIG_DIR ]; then
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pr_info "kernel has no dump on panic support"
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exit 0
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fi
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VMCMD_CONFIG_DIR=/$SYSFSDIR/firmware/vmcmd
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. $DUMP_CONFIG_FILE
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}
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printhelp()
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{
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cat <<EOF
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Usage: dumpconf [OPTIONS]
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This script can be used to configure the dump device which is used by the
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Linux kernel in case of a kernel panic.
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It uses the configuration file /etc/sysconfig/dumpconf as input.
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Options:
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-h, --help print this help
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-v, --version print version information
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start enable configuration defined in /etc/sysconfig/dumpconf
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stop disable dump on panic
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status show current dump on panic configuration
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EOF
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}
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printversion()
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{
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cat <<EOF
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dumpconf: zSeries dump configuration script version 1.1
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Copyright IBM Corp. 2006, 2009
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EOF
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}
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print_invalid_option()
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{
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cat <<EOF
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dumpconf: invalid option -- $1
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Try 'dumpconf --help' for more information.
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EOF
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}
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cleanup_pidfile()
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{
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if [ $(ps $1 | grep $CMD | wc -l) -eq 0 ]; then
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rm -f $PIDFILE
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fi
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}
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handle_stop_request()
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{
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rm -f $PIDFILE 2>/dev/null
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exit 0
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}
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delay_activation()
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{
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# Open lock file with file descriptor 123
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exec 123>$LOCKFILE
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if flock -n -x 123; then
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if [ -f $PIDFILE ]; then
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# concurrent process was faster
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exit 0
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fi
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trap handle_stop_request TERM
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echo $$ > $PIDFILE
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else
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# Nothing to do, "dumpconf start" is already in progress
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exit 0
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fi
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# Close file descriptor 123
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exec 123>&-
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# Do multiple sleeps in order to be interruptible
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for ((i=0; i < $DELAY_MINUTES * 60; i++)); do
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sleep 1
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done
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rm -f $PIDFILE
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}
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# $1: dump device bus id (e.g. 0.0.4711)
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verify_ccw_dump_device()
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{
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line=$(lsdasd -c $1)
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if [ $? -ne 0 ]; then
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line=$(lsdasd $1)
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fi
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if [ "$line" == "" ]; then
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pr_info "WARNING: device $1 not found!"
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return 1
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fi
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found=false
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for i in $line
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do
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if [ $found == true ]; then
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break
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fi
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if [ "$i" == "is" ]; then
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found=true
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fi
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done
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zgetdump -d /dev/$i > /dev/null 2>&1
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if [ $? == 0 ]; then
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return 0
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else
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pr_info "WARNING: $1 is no valid dump device!"
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return 1
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fi
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}
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#------------------------------------------------------------------------------
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# Helper function to check a device string.
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#------------------------------------------------------------------------------
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function CheckDeviceString() {
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local X
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X=$(
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echo "$1" |
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awk --posix -F. '
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function PrintBusID(css, grp, devno) {
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while(length(devno) < 4)
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devno = "0" devno
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print css "." grp "." devno
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}
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NF == 1 && $1 ~ /^[0-9a-fA-F]{1,4}$/ {
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PrintBusID("0","0", $1)
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next
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}
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NF != 3 || $1 !~ /^[0-9a-fA-F]{1,2}$/ {
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next
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}
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$2 !~ /^[0-9a-fA-F]{1,2}$/ {
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next
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}
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$3 !~ /^[0-9a-fA-F]{1,4}$/ {
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next
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}
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{
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PrintBusID($1, $2, $3)
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}
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'
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)
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if [ "$X" != "" ]; then
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echo $X
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return 0
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fi
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}
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setup_ccw_device()
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{
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DEV="$(CheckDeviceString $DEVICE)"
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if [ "$DEV" != "" ]; then
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echo $DEV > $1/$2/device
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else
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RETVAL=1
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pr_error "ERROR: Invalid DEVICE '$DEVICE'." $ERRMSG
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return
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fi
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}
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setup_fcp_device()
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{
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DEV="$(CheckDeviceString $DEVICE)"
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if [ "$DEV" != "" ]; then
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echo $DEV > $1/$2/device
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else
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RETVAL=1
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pr_error "ERROR: Invalid DEVICE '$DEVICE'." $ERRMSG
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return
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fi
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echo $WWPN > $1/fcp/wwpn 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid WWPN '$WWPN'." $ERRMSG
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return
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fi
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echo $LUN > $1/fcp/lun 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid LUN '$LUN'." $ERRMSG
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return
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fi
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echo $BOOTPROG > $1/fcp/bootprog 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid BOOTPROG '$BOOTPROG'." $ERRMSG
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return
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fi
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echo $BR_LBA > $1/fcp/br_lba 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid BR_LBA '$BR_LBA'." $ERRMSG
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return
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fi
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}
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setup_nss_device()
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{
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echo $NSS_NAME > $1/nss/name || RETVAL=1
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}
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setup_nvme_device()
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{
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echo $FID > $1/nvme/fid 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid FID '$FID'." $ERRMSG
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return
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fi
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echo $NSID > $1/nvme/nsid 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid NSID '$NSID'." $ERRMSG
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return
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fi
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echo $BOOTPROG > $1/nvme/bootprog 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid BOOTPROG '$BOOTPROG'." $ERRMSG
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return
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fi
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echo $BR_LBA > $1/nvme/br_lba 2>/dev/null || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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pr_error "ERROR: Invalid BR_LBA '$BR_LBA'." $ERRMSG
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return
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fi
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}
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setup_reipl()
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{
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if [ "$REIPL_TYPE" == "" ]; then
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pr_info "reipl on panic configured: Using default reipl values."
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return
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fi
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case "$REIPL_TYPE" in
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ccw)
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setup_ccw_device $REIPL_CONFIG_DIR $REIPL_TYPE
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;;
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fcp)
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setup_fcp_device $REIPL_CONFIG_DIR $REIPL_TYPE
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;;
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nvme)
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setup_nvme_device $REIPL_CONFIG_DIR
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;;
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nss)
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setup_nss_device $REIPL_CONFIG_DIR
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;;
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*)
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pr_error "ERROR: Unknown reipl type '$REIPL_TYPE'." $ERRMSG
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RETVAL=1
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return
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;;
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esac
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echo $REIPL_TYPE > $REIPL_CONFIG_DIR/reipl_type || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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return
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fi
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pr_info "$REIPL_TYPE reipl device configured."
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}
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setup_dump()
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{
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case "$DUMP_TYPE" in
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ccw)
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setup_ccw_device $DUMP_CONFIG_DIR $DUMP_TYPE
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;;
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fcp)
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setup_fcp_device $DUMP_CONFIG_DIR $DUMP_TYPE
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;;
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nvme)
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setup_nvme_device $DUMP_CONFIG_DIR
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;;
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none)
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;;
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*)
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pr_error "ERROR: Unknown dump type '$DUMP_TYPE'." $ERRMSG
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RETVAL=1
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return
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;;
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esac
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echo $DUMP_TYPE > $DUMP_CONFIG_DIR/dump_type || RETVAL=1
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if [ $RETVAL -eq 1 ]; then
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echo none > $DUMP_CONFIG_DIR/dump_type
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return
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fi
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pr_info "$ON_PANIC on panic configured: Using $DUMP_TYPE dump device."
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}
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setup_on_panic_vmcmd()
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{
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for I in "$VMCMD_1" "$VMCMD_2" "$VMCMD_3" "$VMCMD_4" "$VMCMD_5" "$VMCMD_6" "$VMCMD_7" "$VMCMD_8";
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do
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if [ "$I" != "" ]; then
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if [ "$VMCMD" != "" ]; then
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VMCMD="$VMCMD\\n$I"
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else
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VMCMD=$I
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fi
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fi
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done
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if [ ! -d $VMCMD_CONFIG_DIR ]; then
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pr_error "ERROR: No vmcmd support. Are you running on LPAR?"
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RETVAL=1
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elif [ "$VMCMD" == "" ]; then
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pr_error "ERROR: No VMCMD_x keyword specified." $ERRMSG
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RETVAL=1
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else
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echo -en "$VMCMD" | cat > $VMCMD_CONFIG_DIR/on_panic || RETVAL=1
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fi
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if [ $RETVAL -eq 0 ]; then
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pr_info "vmcmd on panic configured:"
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pr_info -e "$VMCMD"
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fi
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}
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print_fcp_device()
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{
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DEVICE=$(cat $1/fcp/device) || RETVAL=1
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pr_info "device..: $DEVICE"
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WWPN=$(cat $1/fcp/wwpn) || RETVAL=1
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pr_info "wwpn....: $WWPN"
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LUN=$(cat $1/fcp/lun) || RETVAL=1
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pr_info "lun.....: $LUN"
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BOOTPROG=$(cat $1/fcp/bootprog) || RETVAL=1
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pr_info "bootprog: $BOOTPROG"
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BR_LBA=$(cat $1/fcp/br_lba) || RETVAL=1
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pr_info "br_lba..: $BR_LBA"
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}
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print_ccw_device()
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{
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DEVICE=$(cat $1/ccw/device) || RETVAL=1
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pr_info "device..: $DEVICE"
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}
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print_nvme_device()
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{
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FID=$(cat $1/nvme/fid) || RETVAL=1
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pr_info "fid.....: $FID"
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NSID=$(cat $1/nvme/nsid) || RETVAL=1
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pr_info "nsid....: $NSID"
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BOOTPROG=$(cat $1/nvme/bootprog) || RETVAL=1
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pr_info "bootprog: $BOOTPROG"
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BR_LBA=$(cat $1/nvme/br_lba) || RETVAL=1
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pr_info "br_lba..: $BR_LBA"
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}
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print_nss_name()
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{
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NAME=$(cat $1/nss/device) || RETVAL=1
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pr_info "device..: $NAME"
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}
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status_dump()
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{
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CONF_DUMP_TYPE=$(cat $DUMP_CONFIG_DIR/dump_type) || RETVAL=1
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case "$CONF_DUMP_TYPE" in
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none)
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pr_info "type....: no dump device configured"
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;;
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ccw)
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pr_info "type....: ccw"
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print_ccw_device $DUMP_CONFIG_DIR
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verify_ccw_dump_device $(cat $DUMP_CONFIG_DIR/ccw/device)
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;;
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fcp)
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pr_info "type....: fcp"
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print_fcp_device $DUMP_CONFIG_DIR
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;;
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nvme)
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pr_info "type....: nvme"
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print_nvme_device $DUMP_CONFIG_DIR
|
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;;
|
||||
*)
|
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pr_error "ERROR: Unknown dump device type '$CONF_DUMP_TYPE'!"
|
||||
pr_error " Please check if you have the latest dumpconf package!"
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
status_reipl()
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{
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REIPL_TYPE=$(cat $REIPL_CONFIG_DIR/reipl_type) || RETVAL=1
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pr_info "type....: $REIPL_TYPE"
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case "$REIPL_TYPE" in
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ccw)
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print_ccw_device $REIPL_CONFIG_DIR
|
||||
;;
|
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fcp)
|
||||
print_fcp_device $REIPL_CONFIG_DIR
|
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;;
|
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nvme)
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print_nvme_device $REIPL_CONFIG_DIR
|
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;;
|
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nss)
|
||||
print_nss_name $REIPL_CONFIG_DIR
|
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;;
|
||||
*)
|
||||
pr_error "ERROR: Unknown reipl device type '$REIPL_TYPE'!"
|
||||
pr_error " Please check if you have the latest dumpconf package!"
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
status_dump_reipl()
|
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{
|
||||
pr_info -e "\ndump:"
|
||||
status_dump
|
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pr_info -e "\nreipl:"
|
||||
status_reipl
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}
|
||||
|
||||
|
||||
status_vmcmd()
|
||||
{
|
||||
VMCMD=$(cat $VMCMD_CONFIG_DIR/on_panic) || RETVAL=1
|
||||
if [ "$VMCMD" == "" ]; then
|
||||
pr_info "WARNING: No VM command specified!"
|
||||
else
|
||||
pr_info "---------------"
|
||||
pr_info "$VMCMD"
|
||||
fi
|
||||
}
|
||||
|
||||
start()
|
||||
{
|
||||
if [ "$1" == "background" ]; then
|
||||
BACKGROUND=1
|
||||
fi
|
||||
test -n "$DELAY_MINUTES" || DELAY_MINUTES=0
|
||||
test "$DELAY_MINUTES" -ge 0 2>/dev/null || RETVAL=1
|
||||
if [ $RETVAL -eq 1 ]; then
|
||||
pr_error "ERROR: Invalid DELAY_MINUTES parameter" \
|
||||
"'$DELAY_MINUTES'." $ERRMSG
|
||||
return
|
||||
fi
|
||||
if [ "$ON_PANIC" != "stop" -a $DELAY_MINUTES -gt 0 ]; then
|
||||
if [ -f $PIDFILE ]; then
|
||||
pr_info "A delayed instance of" $CMD \
|
||||
"is already active."
|
||||
return
|
||||
fi
|
||||
if [ $BACKGROUND -eq 1 ]; then
|
||||
delay_activation
|
||||
else
|
||||
pr_info "The activation of dumpconf is being delayed" \
|
||||
"for" $DELAY_MINUTES "minutes"
|
||||
$CMDFULL start background > /dev/null 2>&1 &
|
||||
return
|
||||
fi
|
||||
fi
|
||||
if [ "$ON_PANIC" == "" ]; then
|
||||
ON_PANIC="$(cat $ON_PANIC_CONFIG_FILE)"
|
||||
fi
|
||||
|
||||
case "$ON_PANIC" in
|
||||
reipl)
|
||||
setup_reipl
|
||||
;;
|
||||
dump|dump_reipl)
|
||||
setup_dump
|
||||
;;
|
||||
vmcmd)
|
||||
setup_on_panic_vmcmd
|
||||
;;
|
||||
stop)
|
||||
pr_info "stop on panic configured."
|
||||
;;
|
||||
*)
|
||||
pr_error "ERROR: Unknown 'on panic'" \
|
||||
"type '$ON_PANIC'." $ERRMSG
|
||||
RETVAL=1
|
||||
;;
|
||||
esac
|
||||
if [ $RETVAL -eq 1 ]; then
|
||||
return
|
||||
fi
|
||||
|
||||
if [ -f $ON_RESTART_CONFIG_FILE ]; then
|
||||
echo $ON_PANIC > $ON_RESTART_CONFIG_FILE 2> /dev/null || RETVAL=1
|
||||
fi
|
||||
echo $ON_PANIC > $ON_PANIC_CONFIG_FILE 2> /dev/null || RETVAL=1
|
||||
|
||||
# check for errors
|
||||
|
||||
if [ $RETVAL -eq 1 ]; then
|
||||
echo stop > $ON_PANIC_CONFIG_FILE
|
||||
pr_error "ERROR: $ON_PANIC not supported by hardware!"
|
||||
fi
|
||||
}
|
||||
|
||||
stop()
|
||||
{
|
||||
if [ -f $PIDFILE ]; then
|
||||
PID=$(cat $PIDFILE)
|
||||
kill -TERM $PID 2> /dev/null
|
||||
rm -f $PIDFILE
|
||||
fi
|
||||
echo none > $DUMP_CONFIG_DIR/dump_type || RETVAL=1
|
||||
if [ -f $ON_RESTART_CONFIG_FILE ]; then
|
||||
echo stop > $ON_RESTART_CONFIG_FILE 2> /dev/null || RETVAL=1
|
||||
fi
|
||||
echo stop > $ON_PANIC_CONFIG_FILE || RETVAL=1
|
||||
if [ $RETVAL -eq 0 ]; then
|
||||
pr_info "Dump on panic is disabled now"
|
||||
else
|
||||
pr_error "Disabling dump on panic failed"
|
||||
fi
|
||||
return $RETVAL
|
||||
}
|
||||
|
||||
status()
|
||||
{
|
||||
ON_PANIC=$(cat $ON_PANIC_CONFIG_FILE) || RETVAL=1
|
||||
if [ -f $PIDFILE ]; then
|
||||
pr_info "on_panic: $ON_PANIC - dumpconf activation is being" \
|
||||
"delayed for $DELAY_MINUTES minutes"
|
||||
else
|
||||
pr_info "on_panic: $ON_PANIC"
|
||||
fi
|
||||
case "$ON_PANIC" in
|
||||
vmcmd)
|
||||
status_vmcmd
|
||||
;;
|
||||
reipl)
|
||||
status_reipl
|
||||
;;
|
||||
dump)
|
||||
status_dump
|
||||
;;
|
||||
dump_reipl)
|
||||
status_dump_reipl
|
||||
;;
|
||||
stop)
|
||||
;;
|
||||
*)
|
||||
pr_error "ERROR: Unknown on_panic type '$ON_PANIC'"
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
case "$1" in
|
||||
-h|--help)
|
||||
printhelp
|
||||
exit 0
|
||||
;;
|
||||
-v|--version)
|
||||
printversion
|
||||
exit 0
|
||||
;;
|
||||
esac
|
||||
|
||||
check_environment
|
||||
|
||||
# If system crashed, an invalid $PIDFILE might still exist
|
||||
if [ -f $PIDFILE ]; then
|
||||
cleanup_pidfile $(cat $PIDFILE)
|
||||
fi
|
||||
|
||||
# See how we were called.
|
||||
case "$1" in
|
||||
restart|reload|force-reload|try-restart)
|
||||
stop
|
||||
DELAY_MINUTES=0
|
||||
start
|
||||
;;
|
||||
start)
|
||||
start $2
|
||||
;;
|
||||
stop)
|
||||
stop
|
||||
;;
|
||||
status)
|
||||
status
|
||||
;;
|
||||
*)
|
||||
print_invalid_option $1
|
||||
RETVAL=1
|
||||
;;
|
||||
esac
|
||||
|
||||
exit $RETVAL
|
||||
Reference in New Issue
Block a user