set cfg_early_fsck by default

Signed-off-by: fbt <fbt@fleshless.org>

LICENSE

@@ -0,0 +1,13 @@
+Copyright (c) 2012-2014, Jack L. Frost <fbt@fleshless.org>
+
+
+Permission to use, copy, modify, and/or distribute this software for any purpose with or without
+fee is hereby granted, provided that the above copyright notice and this permission notice appear
+in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.

Makefile

@@ -0,0 +1,43 @@
+# spark-rc makefile
+
+# Please modify config.mk and not this
+sinclude config.mk
+
+.PHONY: clean install uninstall all tools
+
+build: rc tools
+
+all: build
+
+tools:
+	make -C tools
+
+rc: rc.in
+	sed -r \
+		-e 's%@ETC@%$(ETC)%' \
+		-e 's%@BASH_PATH@%$(BASH_PATH)%' \
+		rc.in > rc
+
+	chmod 750 $@
+
+clean:
+	rm rc
+
+	make -C tools clean
+
+install: build
+	install -dm755 $(BINDIR)
+	install -dm755 $(ETCDIR)
+
+	install -m750 rc $(BINDIR)/rc
+	install -m644 rc.conf $(ETCDIR)/rc.conf
+	install -m644 rc.motd $(ETCDIR)/rc.motd
+
+	install -m755 tools/killall5 $(BINDIR)/killall5
+
+	make -C tools install
+
+uninstall:
+	rm $(BINDIR)/rc
+
+	make -C tools uninstall

README.md

@@ -1,4 +1,8 @@
-spark-rc
+# spark-rc
-========
 
-An example rc to use with spark (or not)
+A simple rc script to kickstart your system.
+
+## depends
+
+* Enabled sysrq or halt from suckless.org's ubase.
+* /proc support.

bin/rc

@@ -1,70 +0,0 @@
-#!/bin/bash
-
-rc.hostname() { hostname "$cfg_hostname"; }
-
-rc.services_start() {
-	local service_name start_mode
-
-	for i in "${cfg_services[@]}"; do
-		unset service_name
-
-		[[ "$i" =~ ^@ ]] && {
-			service_name="${i##*@}"
-			start_mode='bg'
-		}
-
-		[[ "$i" =~ ^% ]] && {
-			service_name="${i##*%}"
-			start_mode='watch'
-		}
-
-		service_name=${service_name:-$i}
-		start_mode="${start_mode:-start}"
-		
-		case "$start_mode" in
-			bg) "${cfg_initscripts_dir}/$service_name" start &;;
-			watch) "${cfg_initscripts_dir}/$service_name" watch &;;
-			start) "${cfg_initscripts_dir}/$service_name" start;;
-			*) echo "Mode $start_mode not supported";;
-		esac
-	done
-}
-
-rc.services_stop() {
-	for i in "${cfg_services[@]}"; do
-		"${cfg_initscripts_dir}/$i" stop
-	done
-}
-
-rc.boot() {
-	rc.hostname
-	rc.modules
-	rc.services_start
-}
-
-rc.shutdown() {
-	rc.services_stop
-}
-
-rc.hostname() {
-	[[ "$cfg_hostname" ]] && { hostname "$cfg_hostname"; }
-}
-
-rc.modules() {
-	for i in "${cfg_modules[@]}"; do
-		modprobe "$i"
-	done
-}
-
-source "/etc/rc.conf"
-
-action="$1"
-action="${action:-boot}"
-
-case "$action" in
-	boot)
-		echo "Welcome to `uname -rs`"
-		rc.boot
-	;;
-	shutdown) rc.shutdown;;
-esac

config.mk

@@ -0,0 +1,10 @@
+# Make config
+
+USR ?= /usr/local
+ETC ?= /etc
+BIN ?= $(USR)/bin
+
+BASH_PATH ?= /bin/bash
+
+BINDIR = $(DESTDIR)$(PREFIX)$(BIN)
+ETCDIR = $(DESTDIR)$(PREFIX)$(ETC)

etc/rc.conf

@@ -1,17 +0,0 @@
-# System-wide configuration
-
-export PATH='/usr/local/bin:/usr/bin'
-
-# Where to look for initscripts
-cfg_initscripts_dir='/etc/rc.d'
-
-# Hostname
-cfg_hostname='changeme'
-
-# Services to start at boot time
-cfg_services+=( 'mount' 'udev' 'rc.local' ) # You probably do need these
-cfg_services+=( '@syslog-ng' '@crond' '@network' '@sshd' '@dbus' '@alsa' ) # Services starting with '@' start in background.
-cfg_services+=( %agetty-tty{2..6} ) # Do not modify this unless you know what you are doing!
-
-# Modules to be loaded at boot time. Most people don't need this
-#cfg_modules=( 'tun' )

rc.conf

@@ -0,0 +1,48 @@
+# A default PATH
+export PATH='/usr/local/bin:/usr/local/sbin:/usr/bin'
+
+# Locale
+export LC_ALL='en_US.UTF-8'
+
+# Hostname
+cfg_hostname='spark'
+
+# Timezone
+# Uncomment and change this to yours
+#cfg_timezone='Europe/Moscow'
+
+# Early fsck, if you don't have such a step in your initrd
+cfg_early_fsck=1
+
+# Services that start with @ are executed in parallel
+cfg_services+=(
+	'mount' 'sysctl' 'rsyslogd'
+	'@lo.iface' '@scron' @agetty-tty{2..6}
+)
+
+# Uncomment and add modules you want to be loaded at boot time here
+#cfg_modules=(  )
+
+# Make C-A-D perform a soft reset
+ctrlaltdel soft
+
+# Virtual filesystems
+cfg_mounts=(
+	'run:tmpfs:/run'
+	'tmp:tmpfs:/tmp'
+
+	'proc:proc:/proc:defaults,hidepid=2'
+	'sys:sysfs:/sys'
+
+	'dev:devtmpfs:/dev'
+	'pts:devpts:/dev/pts:noexec,nosuid,gid=5,mode=0620'
+	'mqueue:mqueue:/dev/mqueue:noexec,nosuid,nodev'
+	'shm:tmpfs:/dev/shm:defaults,mode=0777'
+)
+
+# Some temporary directories and files
+cfg_tmpdirs+=( '/run/lock' '/run/lock/lvm' '/run/lvm' '/run/user' )
+cfg_tmpfiles+=( '/run/utmp' )
+
+# How long do we wait for all processes to die nicely?
+cfg_killall5_timeout=30

rc.in

@@ -0,0 +1,222 @@
+#!@BASH_PATH@
+# vim: ft=zsh
+
+# Functions
+rc.rescue() { exec "${cfg_rc_rescue_shell:-"$SHELL"}"; }
+
+rc.motd() {
+	[[ -f "/etc/rc.motd" ]] && {
+		while read; do
+			printf "%s\n" "$REPLY"
+		done < "/etc/rc.motd"
+	}
+
+	return 0
+}
+
+rc.tmpfiles() {
+	printf '%s\n' "${cfg_tmpdirs[@]}" | while IFS=':' read dir perm own grp; do
+		mkdir -pm "${perm:-755}" "$dir"
+		chown -c "${own:-root}:${grp:-root}" "$dir"
+	done
+
+	printf '%s\n' "${cfg_tmpfiles[@]}" | while IFS=':' read file perm own grp; do
+		> "$file"
+		chmod -c "${perm:-644}" "$file"
+		chown -c "${own:-root}:${grp:-root}" "$file"
+	done
+}
+
+rc.mount() {
+	for fs in "${cfg_mounts[@]}"; do
+		echo "$fs" | while IFS=':' read device fs_type mountpoint mount_options; do
+			if mountpoint -q "$mountpoint"; then
+				if [[ "$mount_options" ]]; then
+					mount -o "remount,$mount_options" "$mountpoint"
+				fi
+			else
+				if ! [[ -d "$mountpoint" ]]; then
+					mkdir -p "$mountpoint"
+				fi
+
+				if ! [[ "$mount_options" ]]; then
+					mount_options='defaults'
+				fi
+
+				mount "$device" -n -t "$fs_type" -o "$mount_options" "$mountpoint"
+			fi
+		done
+	done
+}
+
+rc.parse_cmdline() {
+	[[ -f "/proc/cmdline" ]] && {
+		boot_cmdline=( $(</proc/cmdline) )
+	}
+
+	for i in "${boot_cmdline[@]}"; do
+		case "$i" in
+			init.single) rc.rescue;;
+		esac
+	done
+}
+
+rc.services_start() {
+	local service_name start_mode
+
+	for i in "${cfg_services[@]}"; do
+		unset service_name
+
+		[[ "$i" =~ ^@ ]] && {
+			service_name="${i##*@}"
+			start_mode='bg'
+		}
+
+		[[ "$i" =~ ^% ]] && {
+			service_name="${i##*%}"
+			start_mode='watch'
+		}
+
+		service_name=${service_name:-$i}
+		start_mode="${start_mode:-start}"
+		
+		case "$start_mode" in
+			bg) service "$service_name" start &;;
+			start) service "$service_name" start;;
+			*) echo "Mode $start_mode not supported";;
+		esac
+	done
+}
+
+rc.services_stop() {
+	echo "Stopping services..."
+	local service_name
+
+	for i in "${cfg_services[@]}"; do
+		service_name="${i##*@}"; service_name="${service_name##*%}"
+		service "$service_name" stop &>/dev/null &
+	done
+	wait
+}
+
+rc.stop_everything() {
+	echo "Politely asking all processes to shut down..."
+	killall5 -s 15 -w "$cfg_killall5_timeout"
+
+	echo "Killing the remaning ones..."
+	killall5 -s 9
+}
+
+rc.unmount_everything() {
+	echo "Unmounting filesystems..."
+	umount -r -a
+}
+
+rc.remount_root() {
+	echo "Remounting / read-only..."
+	mount / -o remount,ro
+}
+
+rc.boot() {
+	(( cfg_early_fsck )) && rc.fsck
+
+	rc.mount
+	rc.tmpfiles
+	rc.hostname
+	rc.timezone
+	rc.modules
+	rc.services_start
+	wait
+	rc.motd
+}
+
+rc.halt() {
+	if type -P halt &>/dev/null; then
+		function rc.halt_poweroff { halt -p; }
+		function rc.halt_reboot { halt -r; }
+	elif (( $(</proc/sys/kernel/sysrq) )); then
+		function rc.halt_poweroff { echo 'o' > /proc/sysrq-trigger; }
+		function rc.halt_reboot { echo 'b' > /proc/sysrq-trigger; }
+	else
+		printf 'Cannot halt, please install halt from suckless.org ubase or enable sysrq.\n'
+		return 1
+	fi
+
+	case "$action" in
+		halt) :;;
+		poweroff|shutdown) rc.halt_poweroff;;
+		reboot|*) rc.halt_reboot;;
+	esac
+}
+
+rc.sync() {
+	echo "Syncing disks."
+	sync
+}
+
+rc.shutdown() {
+	rc.services_stop
+	rc.stop_everything
+	rc.sync
+	rc.unmount_everything
+	rc.remount_root
+
+	echo "Halt complete."
+	
+	rc.halt
+}
+
+rc.hostname() {
+	[[ -f '/etc/hostname' ]] && { hostname "$(</etc/hostname)"; }
+	[[ "$cfg_hostname" ]] && { hostname "$cfg_hostname"; }
+}
+
+rc.modules() {
+	for i in "${cfg_modules[@]}"; do
+		modprobe "$i"
+	done
+}
+
+rc.timezone() {
+	[[ "$cfg_timezone" ]] && {
+		ln -fs "/usr/share/zoneinfo/${cfg_timezone}" /etc/localtime
+	}
+}
+
+rc.fsck() {
+	declare root_rw=0
+	touch /rc-write-test && root_rw=1
+	(( root_rw )) && mount -o remount,ro /
+	fsck -A -C -p
+	(( root_rw )) && mount -o remount,rw /
+}
+
+rc.main() {
+	source "@ETC@/rc.conf"
+
+	# Default XDG_RUNTIME_DIR for all non-system users
+	# rtkit:x:133:133:RealtimeKit:/proc:/sbin/nologin
+	# Also add one for root
+	cfg_tmpdirs+=( "/run/user/0:700:0:0" )
+	while IFS=':' read -r _ _ uid gid _; do
+		if (( uid >= 1000 )); then
+			cfg_tmpdirs+=( "/run/user/$uid:700:$uid:$gid" )
+		fi
+	done < /etc/passwd
+
+	action="${1:-boot}"
+
+	case "$action" in
+		boot)
+			echo "Welcome to $(uname -rs)"
+			rc.boot
+		;;
+
+		poweroff|reboot|shutdown|halt)
+			rc.shutdown
+		;;
+	esac
+}
+
+# Main part
+rc.main "$@"

rc.motd

@@ -0,0 +1 @@
+Boot finished. Switch to tty2 to login.

tools/Makefile

@@ -0,0 +1,29 @@
+# spark-rc tools makefile
+
+# Please modify config.mk and not this
+sinclude ../config.mk
+
+.PHONY: clean install uninstall all
+
+build: killall5
+
+all: build
+
+killall5: killall5.in
+	sed -r \
+		-e 's%@BASH_PATH@%$(BASH_PATH)%' \
+		killall5.in > killall5
+
+	chmod 750 $@
+
+clean:
+	rm killall5
+
+install: build
+	install -dm755 $(BINDIR)
+	install -dm755 $(ETCDIR)
+
+	install -m750 killall5 $(BINDIR)/killall5
+
+uninstall:
+	rm $(BINDIR)/killall5

tools/killall5.in

@@ -0,0 +1,98 @@
+#!@BASH_PATH@
+# A simple reimplementation of killall5 from sysvinit-tools
+
+get_my_tree() {
+	local my_pid
+	read my_pid garbage < "/proc/self/stat"
+	child="$my_pid"
+
+	while [[ "$parent" != 1 ]]; do
+		read a b c parent d < "/proc/$child/stat";
+		child="$parent"
+		echo "$parent"
+	done
+}
+
+get_all_procs() {
+	local processlist
+
+	for i in /proc/*/exe; do
+		process_dir="${i%/*}"
+		process_pid="${process_dir##*/}"
+
+		readlink -e "$i" &>/dev/null && {
+			echo "$process_pid"
+		}
+	done
+}
+
+get_procs_to_kill() {
+	for i in "${all_procs[@]}"; do
+		unset skip
+		for p in "${my_tree[@]}"; do
+			[[ "$i" == "$p" ]] && { skip=1; }
+		done
+
+		[[ "$skip" ]] || { echo "$i"; }
+	done
+}
+
+pids_exist() {
+	for i in "$@"; do
+		if [[ -d "/proc/$i" ]]; then
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+pid_wait() {
+	declare counter
+
+	while pids_exist "$@"; do
+		if (( counter == timeout )); then
+			return 1
+		fi
+
+		sleep 1
+
+		(( counter++ ))
+	done
+}
+
+main() {
+	timeout=30
+	signal=15
+
+	while (( $# )); do
+		case $1 in
+			-w)
+				flag_wait=1
+				timeout=$2
+				shift
+			;;
+
+			-s)
+				signal=$2
+				shift
+			;;
+		esac
+
+		shift
+	done
+
+	my_tree=( $(get_my_tree) self thread-self )
+	all_procs=( $(get_all_procs) )
+	procs_to_kill=( $(get_procs_to_kill) )
+
+	kill -n "$signal" "${procs_to_kill[@]}" 2>/dev/null
+
+	if (( flag_wait )); then
+		pid_wait "${procs_to_kill[@]}"
+	fi
+
+	return 0
+}
+
+main "$@"