Fabio Erculiani
96 lines
2.5 KiB
Plaintext
Executable File
96 lines
2.5 KiB
Plaintext
Executable File
#!/sbin/runscript
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# Copyright 1999-2008 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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description="Maintain a tarball of not udev managed device nodes"
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[ -e /etc/conf.d/udev ] && . /etc/conf.d/udev
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rc_device_tarball=${rc_device_tarball:-${RC_DEVICE_TARBALL:-NO}}
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device_tarball=/lib/udev/state/devices.tar.bz2
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depend() {
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if [ -f /etc/init.d/sysfs ]; then
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need udev-mount
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fi
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}
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start()
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{
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_start
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}
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_start() {
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if yesno "${rc_device_tarball}" && \
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[ -s "${device_tarball}" ]
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then
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ebegin "Populating /dev with saved device nodes"
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tar -jxpf "${device_tarball}" -C /dev
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eend $?
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fi
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}
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stop() {
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if [ -e /dev/.devfsd ] || [ ! -e /dev/.udev ] || [ ! -z "${CDBOOT}" ] || \
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! yesno "${rc_device_tarball}" || \
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! touch "${device_tarball}" 2>/dev/null
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then
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return 0
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fi
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ebegin "Saving device nodes"
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# Handle our temp files
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save_tmp_base=/tmp/udev.savedevices."$$"
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devices_udev="${save_tmp_base}"/devices.udev
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devices_real="${save_tmp_base}"/devices.real
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devices_totar="${save_tmp_base}"/devices.totar
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device_tmp_tarball="${save_tmp_base}"/devices
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rm -rf "${save_tmp_base}"
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mkdir "${save_tmp_base}"
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touch "${devices_udev}" "${devices_real}" \
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"${devices_totar}" "${device_tmp_tarball}"
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if [ -f "${devices_udev}" -a -f "${devices_real}" -a \
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-f "${devices_totar}" -a -f "${device_tmp_tarball}" ]
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then
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cd /dev
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# Find all devices, but ignore .udev directory
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find . -xdev -type b -or -type c -or -type l | \
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cut -d/ -f2- | \
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grep -v ^\\.udev >"${devices_real}"
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# Figure out what udev created
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udevadm info --export-db | sed -ne 's,^[SN]: \(.*\),\1,p' >"${devices_udev}"
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# These ones we also do not want in there
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for x in MAKEDEV core fd initctl pts shm stderr stdin stdout root; do
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echo "${x}" >> "${devices_udev}"
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done
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if [ -d /lib/udev/devices ]; then
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cd /lib/udev/devices
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find . -xdev -type b -or -type c -or -type l | \
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cut -d/ -f2- >> "${devices_udev}"
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cd /dev
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fi
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fgrep -x -v -f "${devices_udev}" "${devices_real}" > "${devices_totar}"
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# Now only tarball those not created by udev if we have any
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if [ -s "${devices_totar}" ]; then
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# we dont want to descend into mounted filesystems (e.g. devpts)
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# looking up username may involve NIS/network
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# and net may be down
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tar --one-file-system --numeric-owner \
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-jcpf "${device_tmp_tarball}" -T "${devices_totar}"
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mv -f "${device_tmp_tarball}" "${device_tarball}"
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else
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rm -f "${device_tarball}"
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fi
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eend 0
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else
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eend 1 "Could not create temporary files!"
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fi
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rm -rf "${save_tmp_base}"
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}
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