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//etc/rc1.d/K50netconsole
#!/bin/bash # # netconsole This loads the netconsole module with the configured parameters. # # chkconfig: - 50 50 # description: Initializes network console logging # config: /etc/sysconfig/netconsole # # Copyright 2002 Red Hat, Inc. # # Based in part on a shell script by # Andreas Dilger <adilger@turbolinux.com> Sep 26, 2001 PATH=/sbin:/usr/sbin:$PATH RETVAL=0 SERVER_ADDRESS_RESOLUTION= # Check that networking is up. . /etc/sysconfig/network # Source function library. . /etc/rc.d/init.d/functions # Default values LOCALPORT=6666 DEV= SYSLOGADDR= SYSLOGPORT=514 SYSLOGMACADDR= kernel=`uname -r | cut -d. -f1-2` usage () { echo $"Usage: $0 {start|stop|status|restart|condrestart}" 1>&2 RETVAL=1 } print_address_info () { local host=$1 local route via target route=$(LANG=C ip -o route get to $host/32) [ -z "$DEV" ] && DEV=$(echo $route | sed "s|.* dev \([^ ]*\).*|\1|") echo "DEV=$DEV" echo "LOCALADDR=$(echo $route | sed "s|.* src \([^ ]*\).*|\1|")" if echo $route | grep -q " via " ; then via=$(echo $route | sed "s|.* via \([^ ]*\).*|\1|") target=$via else target=$host fi if [ -z "$SYSLOGMACADDR" ]; then arp=$(LANG=C /sbin/arping -f -c 1 -I $DEV $target 2>/dev/null | awk '/ reply from .*[.*]/ { print gensub(".* reply from .* \\[(.*)\\].*","\\1","G"); exit }') [ -n "$arp" ] && echo "SYSLOGMACADDR=$arp" fi } netconsole_failure () { echo -n "$1" failure echo exit 1 } start () { [ -f /etc/sysconfig/netconsole ] || exit 0 . /etc/sysconfig/netconsole SYSLOGOPTS= # syslogd server, if any if [ -n "$SYSLOGADDR" ]; then if ! [[ "$SYSLOGADDR" =~ "^([0-9]{1,3}\.){3}[0-9]{1,3}$" ]]; then SYSLOGADDR=$(LANG=C host $SYSLOGADDR 2>/dev/null | awk '/has address / { print $NF }') fi fi if [ -z "$SYSLOGADDR" ] ; then echo $"Server address not specified in /etc/sysconfig/netconsole" 1>&2 exit 1 fi eval $(print_address_info $SYSLOGADDR) if [ -z "$SYSLOGMACADDR" ]; then echo $"netconsole: can't resolve MAC address of $SYSLOGADDR" 1>&2 netconsole_failure "syslog server address resolution" fi SYSLOGOPTS="netconsole=$LOCALPORT@$LOCALADDR/$DEV,$SYSLOGPORT@$SYSLOGADDR/$SYSLOGMACADDR " /usr/bin/logger -p daemon.info -t netconsole: inserting netconsole module with arguments \ $SYSLOGOPTS if [ -n "$SYSLOGOPTS" ]; then action $"Initializing netconsole" modprobe netconsole \ $SYSLOGOPTS fi touch /var/lock/subsys/netconsole } stop () { if /sbin/lsmod | grep netconsole >/dev/null 2>&1 ; then action $"Disabling netconsole" rmmod netconsole; fi rm -f /var/lock/subsys/netconsole } status () { if /sbin/lsmod | grep netconsole >/dev/null 2>&1 ; then echo $"netconsole module loaded" RETVAL=0 else echo $"netconsole module not loaded" RETVAL=3 fi } restart () { stop start } condrestart () { [ -e /var/lock/subsys/netconsole ] && restart } case "$1" in stop) stop ;; status) status ;; start|restart|reload) restart ;; condrestart) condrestart ;; *) usage ;; esac exit $RETVAL