165 lines
2.8 KiB
Bash
Executable File
165 lines
2.8 KiB
Bash
Executable File
#!/bin/bash
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# Default virtual mounts for linux systems
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cfg_mounts+=( 'proc:proc:/proc:' )
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cfg_mounts+=( 'run:tmpfs:/run:' )
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cfg_mounts+=( 'sys:sysfs:/sys:' )
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# devfs and its children
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cfg_mounts+=( 'dev:devtmpfs:/dev:' )
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cfg_mounts+=( 'pts:devpts:/dev/pts:noexec,nosuid,gid=5,mode=0620' )
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cfg_mounts+=( 'mqueue:mqueue:/dev/mqueue:noexec,nosuid,nodev' )
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cfg_mounts+=( 'shm:tmpfs:/dev/shm:defaults,mode=0777' )
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# Functions
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rc.rescue() { exec "${cfg_rc_rescue_shell:-"$SHELL"}"; }
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rc.motd() {
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[[ -f "/etc/rc.motd" ]] && {
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while read; do
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printf "$REPLY"
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done < "/etc/rc.motd"
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}
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return 0
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}
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rc.mount_misc() {
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for m in "${cfg_mounts[@]}"; do
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IFS=':' read fs fs_type mountpoint mount_options <<< "$m"
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[[ "$mount_options" ]] || { mount_options='defaults'; }
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mountpoint -q "$mountpoint" || {
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[[ -d "$mountpoint" ]] || { mkdir -p "$mountpoint"; }
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mount "$fs" -n -t "$fs_type" -o "$mount_options" "$mountpoint"
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}
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done
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}
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rc.parse_cmdline() {
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[[ -f "/proc/cmdline" ]] && {
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boot_cmdline=( $(</proc/cmdline) )
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}
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for i in "${boot_cmdline[@]}"; do
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case "$i" in
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init.single) rc.rescue;;
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esac
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done
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}
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rc.services_start() {
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local service_name start_mode
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for i in "${cfg_services[@]}"; do
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unset service_name
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[[ "$i" =~ ^@ ]] && {
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service_name="${i##*@}"
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start_mode='bg'
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}
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[[ "$i" =~ ^% ]] && {
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service_name="${i##*%}"
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start_mode='watch'
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}
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service_name=${service_name:-$i}
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start_mode="${start_mode:-start}"
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case "$start_mode" in
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bg) service "$service_name" start &;;
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start) service "$service_name" start;;
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*) echo "Mode $start_mode not supported";;
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esac
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done
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}
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rc.services_stop() {
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echo "Stopping services..."
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local service_name
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for i in "${cfg_services[@]}"; do
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service_name="${i##*@}"; service_name="${service_name##*%}"
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service "$service_name" stop &>/dev/null &
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done
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wait
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}
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rc.stop_everything() {
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echo "Politely asking all processes to shut down..."
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killall5 -15; sleep 3
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echo "Killing the remaning ones..."
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killall5 -9
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}
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rc.unmount_everything() {
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echo "Unmounting filesystems..."
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umount -a
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}
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rc.remount_root() {
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echo "Remounting / read-only..."
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mount / -o remount,ro
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}
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rc.boot() {
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rc.mount_misc
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rc.hostname
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rc.modules
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rc.services_start
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wait
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rc.motd
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}
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rc.halt() {
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case "$action" in
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poweroff|shutdown) echo 'o' > /proc/sysrq-trigger;;
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halt) :;;
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reboot|*) echo 'b' > /proc/sysrq-trigger;;
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esac
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}
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rc.shutdown() {
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rc.services_stop
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rc.stop_everything
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rc.unmount_everything
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rc.remount_root
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echo "Halt complete."
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rc.halt
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}
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rc.hostname() {
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[[ "$cfg_hostname" ]] && { hostname "$cfg_hostname"; }
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}
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rc.modules() {
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for i in "${cfg_modules[@]}"; do
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modprobe "$i"
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done
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}
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rc.main() {
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source "@ETC@/rc.conf"
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action="${1:-boot}"
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case "$action" in
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boot)
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echo "Welcome to `uname -rs`"
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rc.boot
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;;
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poweroff|reboot|shutdown)
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rc.shutdown
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;;
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esac
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}
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# Main part
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rc.main "$@"
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