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|
#!/bin/bash
# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# Common functions
[[ ${RC_GOT_FUNCTIONS} != "yes" ]] && source /sbin/functions.sh
# User must be root to run most script stuff (except status)
if [[ ${EUID} != "0" ]] && ! [[ $2 == "status" && $# -eq 2 ]] ; then
eerror "$0: must be root to run init scripts"
exit 1
fi
myscript="$1"
if [[ -L $1 && ! -L "/etc/init.d/${1##*/}" ]] ; then
SVCNAME="$(readlink "$1")"
else
SVCNAME="$1"
fi
declare -r SVCNAME="${SVCNAME##*/}"
export SVCNAME
# Support deprecated myservice variable
myservice="${SVCNAME}"
# Stop init scripts from working until sysinit completes
if [[ -e /dev/.rcsysinit ]] ; then
eerror "ERROR: cannot run ${SVCNAME} until sysinit completes"
exit 1
fi
svc_trap() {
trap 'eerror "ERROR: ${SVCNAME} caught an interrupt"; exit 1' \
INT QUIT TSTP
}
# Setup a default trap
svc_trap
# State variables
svcpause="no"
svcrestart="no"
# Functions to handle dependencies and services
[[ ${RC_GOT_SVCNAMES} != "yes" ]] && source "${svclib}/sh/rc-services.sh"
# Functions to control daemons
[[ ${RC_GOT_DAEMON} != "yes" ]] && source "${svclib}/sh/rc-daemon.sh"
if [[ ${SVCNAME%%.*} == "net" && ${SVCNAME#*.} != "${SVCNAME}" ]] ; then
NETSERVICE="yes"
else
NETSERVICE="no"
fi
# Check if the textdomain is non-default
search_lang="${LC_ALL:-${LC_MESSAGES:-${LANG}}}"
[[ -f ${TEXTDOMAINDIR}/${search_lang%.*}/LC_MESSAGES/${myservice}.mo ]] \
&& TEXTDOMAIN="${myservice}"
# Source configuration files.
# (1) Source /etc/conf.d/net if it is a net.* service
# (2) Source /etc/conf.d/${SVCNAME} to get initscript-specific
# configuration (if it exists).
# (3) Source /etc/rc.conf to pick up potentially overriding
# configuration, if the system administrator chose to put it
# there (if it exists).
if [[ ${NETSERVICE} == "yes" ]] ; then
conf="$(add_suffix /etc/conf.d/net)"
[[ -e ${conf} ]] && source "${conf}"
fi
conf="$(add_suffix "/etc/conf.d/${SVCNAME}")"
[[ -e ${conf} ]] && source "${conf}"
conf="$(add_suffix /etc/rc.conf)"
[[ -e ${conf} ]] && source "${conf}"
mylevel="${SOFTLEVEL}"
[[ ${SOFTLEVEL} == "${BOOTLEVEL}" \
|| ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]] \
&& mylevel="${DEFAULTLEVEL}"
# Call svc_quit if we abort AND we have obtained a lock
service_started "${SVCNAME}"
svcstarted="$?"
service_inactive "${SVCNAME}"
svcinactive="$?"
svc_quit() {
eerror "ERROR: ${SVCNAME} caught an interrupt"
if service_inactive "${SVCNAME}" || [[ ${svcinactive} == 0 ]] ; then
mark_service_inactive "${SVCNAME}"
elif [[ ${svcstarted} == 0 ]] ; then
mark_service_started "${SVCNAME}"
else
mark_service_stopped "${SVCNAME}"
fi
exit 1
}
usage() {
local IFS="|"
myline="Usage: ${SVCNAME} { $* "
echo
eerror "${myline}}"
eerror " ${SVCNAME} without arguments for full help"
}
stop() {
# Return success so the symlink gets removed
return 0
}
start() {
eerror "ERROR: ${SVCNAME} does not have a start function."
# Return failure so the symlink doesn't get created
return 1
}
restart() {
svc_restart
}
status() {
# Dummy function
return 0
}
svc_schedule_start() {
local service="$1" start="$2"
[[ ! -d "${svcdir}/scheduled/${service}" ]] \
&& mkdir -p "${svcdir}/scheduled/${service}"
[[ ! -e "${svcdir}/scheduled/${service}/${start}" ]] \
&& ln -snf "/etc/init.d/${service}" \
"${svcdir}/scheduled/${service}/${start}"
}
svc_start_scheduled() {
[[ ! -d "${svcdir}/scheduled/${SVCNAME}" ]] && return
local x= services=
for x in $(dolisting "${svcdir}/scheduled/${SVCNAME}/") ; do
services="${services} ${x##*/}"
done
for x in ${services} ; do
service_stopped "${x}" && start_service "${x}"
rm -f "${svcdir}/scheduled/${SVCNAME}/${x}"
done
rmdir "${svcdir}/scheduled/${SVCNAME}"
}
svc_stop() {
local x= mydep= mydeps= retval=0
local -a servicelist=()
# Do not try to stop if it had already failed to do so
if is_runlevel_stop && service_failed "${SVCNAME}" ; then
return 1
elif service_stopped "${SVCNAME}" ; then
ewarn "WARNING: ${SVCNAME} has not yet been started."
return 0
fi
if ! mark_service_stopping "${SVCNAME}" ; then
eerror "ERROR: ${SVCNAME} is already stopping."
return 1
fi
# Ensure that we clean up if we abort for any reason
trap "svc_quit" INT QUIT TSTP
mark_service_starting "${SVCNAME}"
service_message "Service ${SVCNAME} stopping"
if in_runlevel "${SVCNAME}" "${BOOTLEVEL}" && \
[[ ${SOFTLEVEL} != "reboot" && ${SOFTLEVEL} != "shutdown" ]] ; then
ewarn "WARNING: you are stopping a boot service."
fi
if [[ ${svcpause} != "yes" ]] ; then
if [[ ${NETSERVICE} == "yes" ]] ; then
# A net.* service
if in_runlevel "${SVCNAME}" "${BOOTLEVEL}" || \
in_runlevel "${SVCNAME}" "${mylevel}" ; then
# Only worry about net.* services if this is the last one
# running or if RC_NET_STRICT_CHECKING is set ...
! is_net_up && mydeps="net"
fi
mydeps="${mydeps} ${SVCNAME}"
else
mydeps="${SVCNAME}"
fi
fi
# Save the IN_BACKGROUND var as we need to clear it for stopping depends
local ib_save="${IN_BACKGROUND}"
unset IN_BACKGROUND
for mydep in ${mydeps} ; do
for x in $(needsme "${mydep}") ; do
# Service not currently running, continue
if service_started "${x}" ; then
stop_service "${x}"
service_list=( "${service_list[@]}" "${x}" )
fi
done
done
for x in "${service_list[@]}" ; do
# We need to test if the service has been marked stopped
# as the fifo may still be around if called by custom code
# such as postup from a net script.
service_stopped "${mynetservice}" && continue
wait_service "${x}"
if ! service_stopped "${x}" ; then
retval=1
break
fi
done
IN_BACKGROUND="${ib_save}"
if [[ ${retval} != 0 ]] ; then
eerror "ERROR: problems stopping dependent services."
eerror " ${SVCNAME} is still up."
else
# Now that deps are stopped, stop our service
(
exit() {
RC_QUIET_STDOUT="no"
eerror "DO NOT USE EXIT IN INIT.D SCRIPTS"
eerror "This IS a bug, please fix your broken init.d"
unset -f exit
exit "$@"
}
# Stop einfo/ebegin/eend from working as parallel messes us up
[[ ${RC_PARALLEL_STARTUP} == "yes" ]] && RC_QUIET_STDOUT="yes"
stop
)
retval="$?"
# If a service has been marked inactive, exit now as something
# may attempt to start it again later
if service_inactive "${SVCNAME}" ; then
svcinactive=0
return 0
fi
fi
if [[ ${retval} != 0 ]] ; then
# Did we fail to stop? create symlink to stop multible attempts at
# runlevel change. Note this is only used at runlevel change ...
is_runlevel_stop && mark_service_failed "${SVCNAME}"
# If we are halting the system, do it as cleanly as possible
if [[ ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]] ; then
mark_service_stopped "${SVCNAME}"
else
if [[ ${svcinactive} == 0 ]] ; then
mark_service_inactive "${SVCNAME}"
else
mark_service_started "${SVCNAME}"
fi
fi
service_message "eerror" "ERROR: ${SVCNAME} failed to stop"
else
svcstarted=1
if service_inactive "${SVCNAME}" ; then
svcinactive=0
else
mark_service_stopped "${SVCNAME}"
fi
service_message "Service ${SVCNAME} stopped"
fi
# Reset the trap
svc_trap
return "${retval}"
}
svc_start() {
local x= y= retval=0 startfail= startinactive=
# Do not try to start if i have done so already on runlevel change
if is_runlevel_start && service_failed "${SVCNAME}" ; then
return 1
elif service_started "${SVCNAME}" ; then
ewarn "WARNING: ${SVCNAME} has already been started."
return 0
elif service_inactive "${SVCNAME}" ; then
if [[ ${IN_BACKGROUND} != "true" ]] ; then
ewarn "WARNING: ${SVCNAME} has already been started."
return 0
fi
fi
if ! mark_service_starting "${SVCNAME}" ; then
if service_stopping "${SVCNAME}" ; then
eerror "ERROR: ${SVCNAME} is already stopping."
else
eerror "ERROR: ${SVCNAME} is already starting."
fi
return 1
fi
# Ensure that we clean up if we abort for any reason
trap "svc_quit" INT QUIT TSTP
service_message "Service ${SVCNAME} starting"
# Save the IN_BACKGROUND var as we need to clear it for starting depends
local ib_save="${IN_BACKGROUND}"
unset IN_BACKGROUND
local startupservices="$(ineed "${SVCNAME}") $(valid_iuse "${SVCNAME}")"
local netservices=
for x in $(dolisting "/etc/runlevels/${BOOTLEVEL}/net.*") \
$(dolisting "/etc/runlevels/${mylevel}/net.*") ; do
netservices="${netservices} ${x##*/}"
done
# Start dependencies, if any.
if ! is_runlevel_start ; then
for x in ${startupservices} ; do
if [[ ${x} == "net" && ${NETSERVICE} != "yes" ]] && ! is_net_up ; then
for y in ${netservices} ; do
service_stopped "${y}" && start_service "${y}"
done
elif [[ ${x} != "net" ]] ; then
if service_stopped "${x}" ; then
start_service "${x}"
fi
fi
done
fi
# We also wait for any services we're after to finish incase they
# have a "before" dep but we don't dep on them.
if is_runlevel_start ; then
startupservices="${startupservices} $(valid_iafter "${SVCNAME}")"
fi
if [[ " ${startupservices} " == *" net "* ]] ; then
startupservices=" ${startupservices} "
startupservices="${startupservices/ net / ${netservices} }"
startupservices="${startupservices// net /}"
fi
# Wait for dependencies to finish.
for x in ${startupservices} ; do
service_started "${x}" && continue
wait_service "${x}"
if ! service_started "${x}" ; then
# A 'need' dependency is critical for startup
if ineed -t "${SVCNAME}" "${x}" >/dev/null \
|| net_service "${x}" && ineed -t "${SVCNAME}" net \
&& ! is_net_up ; then
if service_inactive "${x}" || service_wasinactive "${x}" || \
[[ -n $(ls "${svcdir}"/scheduled/*/"${x}" 2>/dev/null) ]] ; then
svc_schedule_start "${x}" "${SVCNAME}"
startinactive="${x}"
else
startfail="${x}"
fi
break
fi
fi
done
if [[ -n ${startfail} ]] ; then
eerror "ERROR: Problem starting needed service ${startfail}"
eerror " ${SVCNAME} was not started."
retval=1
elif [[ -n ${startinactive} ]] ; then
ewarn "WARNING: ${SVCNAME} is scheduled to start when ${startinactive} has started."
retval=1
elif broken "${SVCNAME}" ; then
eerror "ERROR: Some services needed are missing. Run"
eerror " './${SVCNAME} broken' for a list of those"
eerror " services. ${SVCNAME} was not started."
retval=1
else
IN_BACKGROUND="${ib_save}"
(
exit() {
RC_QUIET_STDOUT="no"
eerror "DO NOT USE EXIT IN INIT.D SCRIPTS"
eerror "This IS a bug, please fix your broken init.d"
unset -f exit
exit "$@"
}
# Apply any ulimits if defined
[[ -n ${RC_ULIMIT} ]] && ulimit ${RC_ULIMIT}
# Stop einfo/ebegin/eend from working as parallel messes us up
[[ ${RC_PARALLEL_STARTUP} == "yes" ]] && RC_QUIET_STDOUT="yes"
start
)
retval="$?"
# If a service has been marked inactive, exit now as something
# may attempt to start it again later
if service_inactive "${SVCNAME}" ; then
svcinactive=0
service_message "ewarn" "WARNING: ${SVCNAME} has started but is inactive"
return 1
fi
fi
if [[ ${retval} != 0 ]] ; then
if [[ ${svcinactive} == 0 ]] ; then
mark_service_inactive "${SVCNAME}"
else
mark_service_stopped "${SVCNAME}"
fi
if [[ -z ${startinactive} ]] ; then
is_runlevel_start && mark_service_failed "${SVCNAME}"
service_message "eerror" "ERROR: ${SVCNAME} failed to start"
fi
else
svcstarted=0
mark_service_started "${SVCNAME}"
service_message "Service ${SVCNAME} started"
fi
# Reset the trap
svc_trap
return "${retval}"
}
svc_restart() {
if ! service_stopped "${SVCNAME}" ; then
svc_stop || return "$?"
fi
svc_start
}
svc_status() {
# The basic idea here is to have some sort of consistent
# output in the status() function which scripts can use
# as an generic means to detect status. Any other output
# should thus be formatted in the custom status() function
# to work with the printed " * status: foo".
local efunc="" state=""
# If we are effectively root, check to see if required daemons are running
# and update our status accordingly
[[ ${EUID} == 0 ]] && update_service_status "${SVCNAME}"
if service_stopping "${SVCNAME}" ; then
efunc="eerror"
state="stopping"
elif service_starting "${SVCNAME}" ; then
efunc="einfo"
state="starting"
elif service_inactive "${SVCNAME}" ; then
efunc="ewarn"
state="inactive"
elif service_started "${SVCNAME}" ; then
efunc="einfo"
state="started"
else
efunc="eerror"
state="stopped"
fi
[[ ${RC_QUIET_STDOUT} != "yes" ]] \
&& ${efunc} "status: ${state}"
status
# Return 0 if started, otherwise 1
[[ ${state} == "started" ]]
}
rcscript_errors="$(bash -n "${myscript}" 2>&1)" || {
[[ -n ${rcscript_errors} ]] && echo "${rcscript_errors}" >&2
eerror "ERROR: ${myscript} has syntax errors in it; aborting ..."
exit 1
}
# set *after* wrap_rcscript, else we get duplicates.
opts="start stop restart"
source "${myscript}"
# make sure whe have valid $opts
if [[ -z ${opts} ]] ; then
opts="start stop restart"
fi
svc_homegrown() {
local x arg="$1"
shift
# Walk through the list of available options, looking for the
# requested one.
for x in ${opts} ; do
if [[ ${x} == "${arg}" ]] ; then
if typeset -F "${x}" &>/dev/null ; then
# Run the homegrown function
"${x}"
return $?
fi
fi
done
x=""
# If we're here, then the function wasn't in $opts.
[[ -n $* ]] && x="/ $* "
eerror "ERROR: wrong args ( "${arg}" ${x})"
# Do not quote this either ...
usage ${opts}
exit 1
}
shift
if [[ $# -lt 1 ]] ; then
eerror "ERROR: not enough args."
usage ${opts}
exit 1
fi
for arg in $* ; do
case "${arg}" in
--quiet)
RC_QUIET_STDOUT="yes"
;;
# We check this in functions.sh ...
# --nocolor)
# RC_NOCOLOR="yes"
# ;;
--verbose)
RC_VERBOSE="yes"
;;
esac
done
retval=0
for arg in $* ; do
case "${arg}" in
stop)
if [[ -e "${svcdir}/scheduled/${SVCNAME}" ]] ; then
rm -Rf "${svcdir}/scheduled/${SVCNAME}"
fi
# Stoped from the background - treat this as a restart so that
# stopped services come back up again when started.
if [[ ${IN_BACKGROUND} == "true" ]] ; then
rm -rf "${svcdir}/snapshot/$$"
mkdir -p "${svcdir}/snapshot/$$"
cp -pP "${svcdir}"/started/* "${svcdir}/snapshot/$$/"
rm -f "${svcdir}/snapshot/$$/${SVCNAME}"
fi
svc_stop
retval="$?"
if [[ ${IN_BACKGROUND} == "true" ]] ; then
for x in $(dolisting "${svcdir}/snapshot/$$/") ; do
if service_stopped "${x##*/}" ; then
svc_schedule_start "${SVCNAME}" "${x##*/}"
fi
done
else
rm -f "${svcdir}"/scheduled/*/"${SVCNAME}"
fi
;;
start)
svc_start
retval="$?"
service_started "${SVCNAME}" && svc_start_scheduled
;;
needsme|ineed|usesme|iuse|broken)
trace_dependencies "-${arg}"
;;
status)
svc_status
retval="$?"
;;
zap)
einfo "Manually resetting ${SVCNAME} to stopped state."
mark_service_stopped "${SVCNAME}"
;;
restart)
svcrestart="yes"
# We don't kill child processes if we're restarting
# This is especically important for sshd ....
RC_KILL_CHILDREN="no"
# Create a snapshot of started services
rm -rf "${svcdir}/snapshot/$$"
mkdir -p "${svcdir}/snapshot/$$"
cp -pP "${svcdir}"/started/* "${svcdir}/snapshot/$$/"
rm -f "${svcdir}/snapshot/$$/${SVCNAME}"
# Simple way to try and detect if the service use svc_{start,stop}
# to restart if it have a custom restart() funtion.
if [[ -n $(egrep '^[[:space:]]*restart[[:space:]]*()' "/etc/init.d/${SVCNAME}") ]] ; then
if [[ -z $(egrep 'svc_stop' "/etc/init.d/${SVCNAME}") || \
-z $(egrep 'svc_start' "/etc/init.d/${SVCNAME}") ]] ; then
echo
ewarn "Please use 'svc_stop; svc_start' and not 'stop; start' to"
ewarn "restart the service in its custom 'restart()' function."
ewarn "Run ${SVCNAME} without arguments for more info."
echo
svc_restart
else
restart
fi
else
restart
fi
retval="$?"
[[ -e "${svcdir}/scheduled/${SVCNAME}" ]] \
&& rm -Rf "${svcdir}/scheduled/${SVCNAME}"
# Restart dependencies as well
for x in $(dolisting "${svcdir}/snapshot/$$/") ; do
if service_stopped "${x##*/}" ; then
if service_inactive "${SVCNAME}" \
|| service_wasinactive "${SVCNAME}" ; then
svc_schedule_start "${SVCNAME}" "${x##*/}"
ewarn "WARNING: ${x##*/} is scheduled to start when ${SVCNAME} has started."
elif service_started "${SVCNAME}" ; then
start_service "${x##*/}"
fi
fi
done
rm -rf "${svcdir}/snapshot/$$"
service_started "${SVCNAME}" && svc_start_scheduled
# Wait for services to come up
[[ ${RC_PARALLEL_STARTUP} == "yes" ]] && wait
svcrestart="no"
;;
pause)
svcpause="yes"
svc_stop
retval="$?"
svcpause="no"
;;
--quiet|--nocolor)
;;
help)
exec "${svclib}"/sh/rc-help.sh "${myscript}" help
;;
*)
# Allow for homegrown functions
svc_homegrown ${arg}
retval="$?"
;;
esac
done
exit "${retval}"
# vim:ts=4
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