From 8b87d8768819767285669a25a8e160b6e2faad58 Mon Sep 17 00:00:00 2001 From: Carlos Santos Date: Tue, 6 Nov 2018 22:49:09 -0200 Subject: [PATCH] busybox: rewrite logging init script - Split S01logging into S01syslogd and S02klogd. Install them only if no other syslog package is selected and the corresponding daemons are selected in the Busybox configuration. - Support /etc/default/$DAEMON configuration files. - Detect and report start/stop errors (previous version ignored them and always reported OK). - Use a separate function for restart. - Implement reload as restart. The dependency of busybox on rsyslog and syslog-ng was only needed because those packages also installed S01logging. Since now they no longer install the same file, these dependencies are no longer needed. The dependency on sysklogd is still needed since that one installs the syslogd and klogd executables with the same name as busybox. The -n option of syslogd/klogd is obligatory because start-stop-daemon starts it in the background. Therefore, move it out of the SYSLOGD_ARGS resp. KLOGD_ARGS variable so the user can no longer remove it. Signed-off-by: Carlos Santos Reviewed-by: Matt Weber [Arnout: keep dependency on sysklogd] Signed-off-by: Arnout Vandecappelle (Essensium/Mind) --- package/busybox/S01logging | 40 --------------------------- package/busybox/S01syslogd | 55 ++++++++++++++++++++++++++++++++++++++ package/busybox/S02klogd | 55 ++++++++++++++++++++++++++++++++++++++ package/busybox/busybox.mk | 18 ++++++++----- 4 files changed, 121 insertions(+), 47 deletions(-) delete mode 100644 package/busybox/S01logging create mode 100644 package/busybox/S01syslogd create mode 100644 package/busybox/S02klogd diff --git a/package/busybox/S01logging b/package/busybox/S01logging deleted file mode 100644 index fcb3e7d236..0000000000 --- a/package/busybox/S01logging +++ /dev/null @@ -1,40 +0,0 @@ -#!/bin/sh -# -# Start logging -# - -SYSLOGD_ARGS=-n -KLOGD_ARGS=-n -[ -r /etc/default/logging ] && . /etc/default/logging - -start() { - printf "Starting logging: " - start-stop-daemon -b -S -q -m -p /var/run/syslogd.pid --exec /sbin/syslogd -- $SYSLOGD_ARGS - start-stop-daemon -b -S -q -m -p /var/run/klogd.pid --exec /sbin/klogd -- $KLOGD_ARGS - echo "OK" -} - -stop() { - printf "Stopping logging: " - start-stop-daemon -K -q -p /var/run/syslogd.pid - start-stop-daemon -K -q -p /var/run/klogd.pid - echo "OK" -} - -case "$1" in - start) - start - ;; - stop) - stop - ;; - restart|reload) - stop - start - ;; - *) - echo "Usage: $0 {start|stop|restart|reload}" - exit 1 -esac - -exit $? diff --git a/package/busybox/S01syslogd b/package/busybox/S01syslogd new file mode 100644 index 0000000000..6e642a678a --- /dev/null +++ b/package/busybox/S01syslogd @@ -0,0 +1,55 @@ +#!/bin/sh + +DAEMON="syslogd" +PIDFILE="/var/run/$DAEMON.pid" + +SYSLOGD_ARGS="" + +# shellcheck source=/dev/null +[ -r "/etc/default/$DAEMON" ] && . "/etc/default/$DAEMON" + +# BusyBox' syslogd does not create a pidfile, so pass "-n" in the command line +# and use "-m" to instruct start-stop-daemon to create one. +start() { + printf 'Starting %s: ' "$DAEMON" + # shellcheck disable=SC2086 # we need the word splitting + start-stop-daemon -b -m -S -q -p "$PIDFILE" -x "/sbin/$DAEMON" \ + -- -n $SYSLOGD_ARGS + status=$? + if [ "$status" -eq 0 ]; then + echo "OK" + else + echo "FAIL" + fi + return "$status" +} + +stop() { + printf 'Stopping %s: ' "$DAEMON" + start-stop-daemon -K -q -p "$PIDFILE" + status=$? + if [ "$status" -eq 0 ]; then + rm -f "$PIDFILE" + echo "OK" + else + echo "FAIL" + fi + return "$status" +} + +restart() { + stop + sleep 1 + start +} + +case "$1" in + start|stop|restart) + "$1";; + reload) + # Restart, since there is no true "reload" feature. + restart;; + *) + echo "Usage: $0 {start|stop|restart|reload}" + exit 1 +esac diff --git a/package/busybox/S02klogd b/package/busybox/S02klogd new file mode 100644 index 0000000000..a4200cfb34 --- /dev/null +++ b/package/busybox/S02klogd @@ -0,0 +1,55 @@ +#!/bin/sh + +DAEMON="klogd" +PIDFILE="/var/run/$DAEMON.pid" + +KLOGD_ARGS="" + +# shellcheck source=/dev/null +[ -r "/etc/default/$DAEMON" ] && . "/etc/default/$DAEMON" + +# BusyBox' klogd does not create a pidfile, so pass "-n" in the command line +# and use "-m" to instruct start-stop-daemon to create one. +start() { + printf 'Starting %s: ' "$DAEMON" + # shellcheck disable=SC2086 # we need the word splitting + start-stop-daemon -b -m -S -q -p "$PIDFILE" -x "/sbin/$DAEMON" \ + -- -n $KLOGD_ARGS + status=$? + if [ "$status" -eq 0 ]; then + echo "OK" + else + echo "FAIL" + fi + return "$status" +} + +stop() { + printf 'Stopping %s: ' "$DAEMON" + start-stop-daemon -K -q -p "$PIDFILE" + status=$? + if [ "$status" -eq 0 ]; then + rm -f "$PIDFILE" + echo "OK" + else + echo "FAIL" + fi + return "$status" +} + +restart() { + stop + sleep 1 + start +} + +case "$1" in + start|stop|restart) + "$1";; + reload) + # Restart, since there is no true "reload" feature. + restart;; + *) + echo "Usage: $0 {start|stop|restart|reload}" + exit 1 +esac diff --git a/package/busybox/busybox.mk b/package/busybox/busybox.mk index 757086592f..bfcca6ed3e 100644 --- a/package/busybox/busybox.mk +++ b/package/busybox/busybox.mk @@ -55,10 +55,8 @@ BUSYBOX_DEPENDENCIES = \ $(if $(BR2_PACKAGE_PCIUTILS),pciutils) \ $(if $(BR2_PACKAGE_PROCPS_NG),procps-ng) \ $(if $(BR2_PACKAGE_PSMISC),psmisc) \ - $(if $(BR2_PACKAGE_RSYSLOGD),rsyslog) \ $(if $(BR2_PACKAGE_START_STOP_DAEMON),start-stop-daemon) \ $(if $(BR2_PACKAGE_SYSKLOGD),sysklogd) \ - $(if $(BR2_PACKAGE_SYSLOG_NG),syslog-ng) \ $(if $(BR2_PACKAGE_SYSTEMD),systemd) \ $(if $(BR2_PACKAGE_SYSVINIT),sysvinit) \ $(if $(BR2_PACKAGE_TAR),tar) \ @@ -245,15 +243,21 @@ define BUSYBOX_INSTALL_INDIVIDUAL_BINARIES endef endif -# Only install our own if no other package already did. +# Only install our logging scripts if no other package does it. +ifeq ($(BR2_PACKAGE_SYSKLOGD)$(BR2_PACKAGE_RSYSLOG)$(BR2_PACKAGE_SYSLOG_NG),) define BUSYBOX_INSTALL_LOGGING_SCRIPT - if grep -q CONFIG_SYSLOGD=y $(@D)/.config && \ - [ ! -e $(TARGET_DIR)/etc/init.d/S01logging ]; \ + if grep -q CONFIG_SYSLOGD=y $(@D)/.config; \ then \ - $(INSTALL) -m 0755 -D package/busybox/S01logging \ - $(TARGET_DIR)/etc/init.d/S01logging; \ + $(INSTALL) -m 0755 -D package/busybox/S01syslogd \ + $(TARGET_DIR)/etc/init.d/S01syslogd; \ + fi; \ + if grep -q CONFIG_KLOGD=y $(@D)/.config; \ + then \ + $(INSTALL) -m 0755 -D package/busybox/S02klogd \ + $(TARGET_DIR)/etc/init.d/S02klogd; \ fi endef +endif ifeq ($(BR2_INIT_BUSYBOX),y) define BUSYBOX_INSTALL_INITTAB -- 2.30.2