openwrt/package/base-files/files/etc/rc.common
Karel Kočí cc7316d1e9 base-files: fix enabled for services with only STOP
There are services that have only STOP value set. They are executed only
on shutdown and it is common to use them for system cleanup. There is
one such service shipped directly with base-files, it is 'umount'. Those
work the same way as those with START but enabled does not report them
as enabled although it should have as they can be enabled and disabled
as any other service.

This also changes check from check for executable to check for symbolic
link. The implementation depends on those being links to service file
and it is much cleaner and direct to check for them being links.

Signed-off-by: Karel Kočí <karel.koci@nic.cz>
2021-06-22 09:45:27 -10:00

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#!/bin/sh
# Copyright (C) 2006-2012 OpenWrt.org
. $IPKG_INSTROOT/lib/functions.sh
. $IPKG_INSTROOT/lib/functions/service.sh
initscript=$1
action=${2:-help}
shift 2
start() {
return 0
}
stop() {
return 0
}
reload() {
restart
}
restart() {
trap '' TERM
stop "$@"
trap - TERM
start "$@"
}
boot() {
start "$@"
}
shutdown() {
stop
}
disable() {
name="$(basename "${initscript}")"
rm -f "$IPKG_INSTROOT"/etc/rc.d/S??$name
rm -f "$IPKG_INSTROOT"/etc/rc.d/K??$name
}
enable() {
err=1
name="$(basename "${initscript}")"
[ "$START" ] && \
ln -sf "../init.d/$name" "$IPKG_INSTROOT/etc/rc.d/S${START}${name##S[0-9][0-9]}" && \
err=0
[ "$STOP" ] && \
ln -sf "../init.d/$name" "$IPKG_INSTROOT/etc/rc.d/K${STOP}${name##K[0-9][0-9]}" && \
err=0
return $err
}
enabled() {
name="$(basename "${initscript}")"
name="${name##[SK][0-9][0-9]}"
{
[ -z "${START:-}" ] || [ -L "$IPKG_INSTROOT/etc/rc.d/S${START}$name" ]
} && {
[ -z "${STOP:-}" ] || [ -L "$IPKG_INSTROOT/etc/rc.d/K${STOP}$name" ]
}
}
depends() {
return 0
}
ALL_HELP=""
ALL_COMMANDS="boot shutdown depends"
extra_command() {
local cmd="$1"
local help="$2"
local extra="$(printf "%-16s%s" "${cmd}" "${help}")"
ALL_HELP="${ALL_HELP}\t${extra}\n"
ALL_COMMANDS="${ALL_COMMANDS} ${cmd}"
}
help() {
cat <<EOF
Syntax: $initscript [command]
Available commands:
EOF
echo -e "$ALL_HELP"
}
# for procd
start_service() {
return 0
}
stop_service() {
return 0
}
service_triggers() {
return 0
}
service_data() {
return 0
}
service_running() {
local service="${1:-$(basename $initscript)}"
local instance="${2:-*}"
procd_running "$service" "$instance" "$@"
}
${INIT_TRACE:+set -x}
extra_command "start" "Start the service"
extra_command "stop" "Stop the service"
extra_command "restart" "Restart the service"
extra_command "reload" "Reload configuration files (or restart if service does not implement reload)"
extra_command "enable" "Enable service autostart"
extra_command "disable" "Disable service autostart"
extra_command "enabled" "Check if service is started on boot"
. "$initscript"
[ -n "$USE_PROCD" ] && {
extra_command "running" "Check if service is running"
extra_command "status" "Service status"
extra_command "trace" "Start with syscall trace"
. $IPKG_INSTROOT/lib/functions/procd.sh
basescript=$(readlink "$initscript")
rc_procd() {
local method="set"
[ -n "$2" ] && method="add"
procd_open_service "$(basename ${basescript:-$initscript})" "$initscript"
"$@"
procd_close_service "$method"
}
start() {
rc_procd start_service "$@"
if eval "type service_started" 2>/dev/null >/dev/null; then
service_started
fi
}
trace() {
TRACE_SYSCALLS=1
start "$@"
}
stop() {
procd_lock
stop_service "$@"
procd_kill "$(basename ${basescript:-$initscript})" "$1"
if eval "type service_stopped" 2>/dev/null >/dev/null; then
service_stopped
fi
}
reload() {
if eval "type reload_service" 2>/dev/null >/dev/null; then
procd_lock
reload_service "$@"
else
start
fi
}
running() {
service_running "$@"
}
status() {
if eval "type status_service" 2>/dev/null >/dev/null; then
status_service "$@"
else
_procd_status "$(basename ${basescript:-$initscript})" "$1"
fi
}
}
ALL_COMMANDS="${ALL_COMMANDS} ${EXTRA_COMMANDS}"
ALL_HELP="${ALL_HELP}${EXTRA_HELP}"
list_contains ALL_COMMANDS "$action" || action=help
$action "$@"