141 lines
2.4 KiB
Bash
141 lines
2.4 KiB
Bash
#!/bin/sh
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#
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# This file, originally written by Garrett A. Wollman, is in the public
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# domain.
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#
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# $FreeBSD$
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#
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# PROVIDE: disks
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# KEYWORD: nojail
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. /etc/rc.subr
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name="gbde"
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start_precmd="find_gbde_devices start"
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stop_precmd="find_gbde_devices stop"
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start_cmd="gbde_start"
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stop_cmd="gbde_stop"
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# Change every ${_src} in ${_str} to ${_dst}.
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# We cannot use tr(1), sed(1) nor awk(1) here, because this script is executed
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# before /usr is mounted.
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local_tr()
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{
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_str=$1
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_src=$2
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_dst=$3
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_out=""
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IFS=${_src}
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for _com in ${_str}; do
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if [ -z "${_out}" ]; then
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_out="${_com}"
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else
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_out="${_out}${_dst}${_com}"
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fi
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done
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echo "${_out}"
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}
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find_gbde_devices()
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{
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case "${gbde_devices-auto}" in
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[Aa][Uu][Tt][Oo])
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gbde_devices=""
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;;
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*)
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return 0
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;;
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esac
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case "$1" in
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start)
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fstab="/etc/fstab"
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;;
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stop)
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fstab=$(mktemp /tmp/mtab.XXXXXX)
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mount -p >${fstab}
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;;
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esac
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#
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# We can't use "mount -p | while ..." because when a shell loop
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# is the target of a pipe it executes in a subshell, and so can't
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# modify variables in the script.
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#
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while read device mountpt type options dump pass; do
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case "$device" in
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*.bde)
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# Ignore swap devices
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case "$type" in
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swap)
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continue
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;;
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esac
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case "$options" in
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*noauto*)
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if checkyesno gbde_autoattach_all; then
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gbde_devices="${gbde_devices} ${device}"
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fi
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;;
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*)
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gbde_devices="${gbde_devices} ${device}"
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;;
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esac
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;;
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esac
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done <${fstab}
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case "$1" in
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stop)
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rm -f ${fstab}
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;;
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esac
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return 0
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}
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gbde_start()
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{
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for device in $gbde_devices; do
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parent=${device%.bde}
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parent=${parent#/dev/}
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parent_=`local_tr ${parent} '/' '_'`
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eval "lock=\${gbde_lock_${parent_}-\"${gbde_lockdir}/${parent_}.lock\"}"
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if [ -e "/dev/${parent}" -a ! -e "/dev/${parent}.bde" ]; then
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echo "Configuring Disk Encryption for ${parent}."
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count=1
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while [ ${count} -le ${gbde_attach_attempts} ]; do
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if [ -e "${lock}" ]; then
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gbde attach ${parent} -l ${lock}
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else
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gbde attach ${parent}
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fi
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if [ -e "/dev/${parent}.bde" ]; then
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break
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fi
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echo "Attach failed; attempt ${count} of ${gbde_attach_attempts}."
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count=$((${count} + 1))
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done
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fi
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done
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}
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gbde_stop()
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{
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for device in $gbde_devices; do
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parent=${device%.bde}
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parent=${parent#/dev/}
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if [ -e "/dev/${parent}.bde" ]; then
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umount "/dev/${parent}.bde" 2>/dev/null
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gbde detach "${parent}"
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fi
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done
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}
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load_rc_config $name
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run_rc_command "$1"
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