Dr. Werner Fink 2011-08-17 15:27:01 +00:00 committed by Git OBS Bridge
parent 1782c52e6e
commit 18bf42399c

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#!/bin/bash
#
# /lib/systemd/system-generator/syslog-service-generator
#
# Copyright (c) 2011 SuSE LINUX Products GmbH, Germany.
#
# Description:
#
# Write out syslog.service and if required klogd.service depending
# on the configuration found in /etc/sysconfig/syslog. Also check
# if network target is required with this we do not required the
# earlysyslog hack anymore. Based on the /etc/init.d/syslog script
# as well as on the /etc/init.d/earlysyslog wrapper script.
#
# Author: Werner Fink
# Please send feedback to http://www.suse.de/feedback
#
umask 0022
BINDIR=/sbin
UNIT_PATH=/etc/systemd/system
RUN_PATH=/run/systemd/system
test -s /etc/sysconfig/syslog && . /etc/sysconfig/syslog
#
# Update $SYSLOG_DAEMON if not up-to-date
#
if test -z "$SYSLOG_DAEMON" -o ! -x "$BINDIR/$SYSLOG_DAEMON" ; then
for SYSLOG_DAEMON in rsyslogd syslog-ng syslogd ; do
test -x "$BINDIR/$SYSLOG_DAEMON" && break
done
fi
#
# Default is no network and start klogd
#
network=
start_klogd=yes
klogd=klogd.service
#
# Now check for the three possible system loggers for required
# network connection and for external klogd. Note that /var/run
# does not exist at boot time, therefore files and directories
# will be created below the /run tmpfs.
#
case "$SYSLOG_DAEMON" in
syslog-ng)
syslog=syslog-ng
config=/etc/syslog-ng/syslog-ng.conf
socksdir=/var/run/syslog-ng
socks=$socksdir/additional-log-sockets.conf
if test -s "$config" ; then
while read line ; do
case "$line" in
\#*|"") continue ;;
*udp\ *|*udp\(*) network=network.target ;;
*tcp\ *|*tcp\(*) network=network.target ;;
esac
done < ${config}
fi
/bin/mkdir -p -m 0755 ${socksdir#/var}
/bin/touch -m 0600 ${socks#/var}
params="$SYSLOG_NG_PARAMS"
;;
rsyslogd)
syslog=rsyslogd
config=/etc/rsyslog.early.conf
socksdir=/var/run/rsyslog
socks=$socksdir/additional-log-sockets.conf
#
# In hope this works with the rsyslog.early.conf file
# (hard to implement for rsyslog with its includes/if
# statements)...
#
if test -s "$config" ; then
while read select action ; do
case "$select" in
\#*|"")
continue
esac
case "$action" in
*@*)
network=network.target
break
esac
done < ${config}
test -n "$network" && config=/etc/rsyslog.conf
else
config=/etc/rsyslog.conf
fi
if test -r "$config" ; then
while read one two rest ; do
if test "$one" = '$ModLoad' -a "$two" = 'imklog.so' ; then
start_klogd=no
break
fi
done < $config
fi
/bin/mkdir -p -m 0755 ${socksdir#/var}
/bin/touch -m 0600 ${socks#/var}
compat=${RSYSLOGD_COMPAT_VERSION:-${RSYSLOGD_NATIVE_VERSION}}
params="-c ${compat:-3} -f $config $RSYSLOGD_PARAMS"
;;
*)
syslog=syslogd
config=/etc/syslog.conf
socksdir=/var/run/syslog
socks=$socksdir/additional-log-sockets.env
if test -s "$config" ; then
while read select action ; do
case "$select" in \#*|"") continue ;; esac
case "$action" in *@*) network=network.target ;; esac
done < ${config}
fi
if test -r "$config" ; then
while read line; do
case $line in
file*/proc/kmsg*)
start_klogd=no
break
esac
done < $config
fi
/bin/mkdir -p -m 0755 ${socksdir#/var}
/bin/touch -m 0600 ${socks#/var}
params="$SYSLOGD_PARAMS"
esac
syslog_bin=${BINDIR}/$syslog
klog_bin=${BINDIR}/klogd
test -s ${config} || exit 1
test -x ${syslog_bin} || exit 1
#
# Make sure that we have a log fifo which is used by X11
#
if test -e /dev/xconsole -a ! -p /dev/xconsole ; then
/bin/rm -f /dev/xconsole
fi
if test ! -e /dev/xconsole ; then
/bin/mknod -m 0600 /dev/xconsole p
/bin/chown root:tty /dev/xconsole
fi
#
# No klogd.service required
#
test "$start_klogd" = no && klogd=
#
# Create a temporary file for syslog.service
#
trap 'rm -f "$service"' EXIT
service=$(/bin/mktemp $RUN_PATH/syslog.XXXXXXXX) || exit 1
(/bin/cat > $service)<<-EOF
# Warning: Do not edit as this service file has been and will be
# autogenerated by $0
[Unit]
Description=System Logging Service
Requires=var-run.mount ${network:+$network }syslog.target${klogd:+ $klogd}
After=var-run.mount${network:+ $network}
Before=syslog.target${klogd:+ $klogd}
[Service]
Type=forking
Sockets=syslog.socket
PIDFile=/var/run/${syslog_bin##*/}.pid
StandardOutput=null
ExecStartPre=/bin/systemctl stop systemd-kmsg-syslogd.service
ExecStartPre=-$socksdir/addsockets
EOF
#
# For additional sockets we use further configuration files
# for rsyslogd and syslog-ng but an envrionment file for syslogd
#
case "$SYSLOG_DAEMON" in
rsyslogd)
(/bin/cat > ${socksdir#/var}/addsockets)<<-EOF
#!/bin/sh
# Warning: Do not edit as this file has been and will be
# autogenerated by $0
test -s /etc/sysconfig/syslog && . /etc/sysconfig/syslog
umask 0022
> $socks
for variable in \${!SYSLOGD_ADDITIONAL_SOCKET*}; do
eval value=\\\$\$variable
test -z "\$value" && continue
test ! -d \${value%/*} && continue
echo "\\\$AddUnixListenSocket \$value"
done >> $socks
EOF
;;
syslog-ng)
(/bin/cat > ${socksdir#/var}/addsockets)<<-EOF
#!/bin/sh
# Warning: Do not edit as this file has been and will be
# autogenerated by $0
test -s /etc/sysconfig/syslog && . /etc/sysconfig/syslog
umask 0022
echo 'source chroots {' > $socks
for variable in \${!SYSLOGD_ADDITIONAL_SOCKET*}; do
eval value=\\\$\$variable
test -z "\$value" && continue
test ! -d \${value%/*} && continue
echo "unix-dgram(\\"\$value\\");"
done >> $socks
echo '};' >> $socks
EOF
;;
*)
(/bin/cat > ${socksdir#/var}/addsockets)<<-EOF
#!/bin/sh
# Warning: Do not edit as this file has been and will be
# autogenerated by $0
test -s /etc/sysconfig/syslog && . /etc/sysconfig/syslog
umask 0022
echo -n 'ADDITIONAL_SOCKET="' > $socks
for variable in \${!SYSLOGD_ADDITIONAL_SOCKET*}; do
eval value=\\\$\$variable
test -z "\$value" && continue
test ! -d \${value%/*} && continue
echo -n "-a \$value "
done >> $socks
echo -n '"' >> $socks
EOF
echo "Environment=ADDITIONAL_SOCKET=" >>$service
echo "EnvironmentFile=-$socks" 1>>$service
params="${params:+$params }\$ADDITIONAL_SOCKET"
esac
chmod u+x ${socksdir#/var}/addsockets
#
# If klogd.service is required handle reload of syslog.service efficient
# otherwise we may loose kernel messages or klogd is forwarding kernel
# messages back to systemd as the creator of the system logging socket
# and we would get a message loop.
#
exec 3>&1 1>>$service
echo "ExecStart=$syslog_bin $params"
if test "$start_klogd" != no ; then
echo "ExecReload=/bin/systemctl kill --signal=TSTP klogd.service"
fi
echo "ExecReload=/sbin/killproc -p /var/run/${syslog_bin##*/}.pid -HUP $syslog_bin"
if test "$start_klogd" != no ; then
echo "ExecReload=/bin/systemctl kill --signal=CONT klogd.service"
echo "ExecReload=/bin/systemctl kill --signal=USR2 klogd.service"
fi
echo
echo "[Install]"
echo "WantedBy=multi-user.target"
exec 1>&3 3>&-
if test "$start_klogd" != no -a -x ${klog_bin} ; then
trap 'rm -f "$service" "$klogserv"' EXIT
klogserv=$(/bin/mktemp $RUN_PATH/klogd.XXXXXXXX) || exit 1
(/bin/cat > $klogserv)<<-EOF
# Warning: Do not edit as this service file has been and will be
# autogenerated by $0
[Unit]
# If klogd.service is started then BindTo=syslog.service
# within unit section to make it disappear if syslogd dies.
Description=System Kernel Logging Service
Requisite=syslog.service
BindTo=syslog.service
After=syslog.service
[Service]
Type=forking
StandardOutput=syslog
StandardError=syslog
PIDFile=/var/run/${klog_bin##*/}.pid
Environment=KERNEL_LOGLEVEL=1
Environment=KLOGD_PARAMS=
EnvironmentFile=-/etc/sysconfig/syslog
ExecStart=${klog_bin} -c \$KERNEL_LOGLEVEL \$KLOGD_PARAMS -x
[Install]
WantedBy=multi-user.target
EOF
fi
#
# Now enable the service(s) for multi-user target
#
test -d $UNIT_PATH/multi-user.target.wants/ || mkdir -p $UNIT_PATH/multi-user.target.wants
/bin/mv $service $RUN_PATH/syslog.service
/bin/ln -sf $RUN_PATH/syslog.service $UNIT_PATH/multi-user.target.wants/
if test "$start_klogd" != no ; then
/bin/mv $klogserv $RUN_PATH/klogd.service
/bin/ln -sf $RUN_PATH/klogd.service $UNIT_PATH/multi-user.target.wants/
fi