92 lines
2.5 KiB
Plaintext
92 lines
2.5 KiB
Plaintext
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#!/sbin/runscript
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# Copyright 1999-2007 Gentoo Foundation
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# Copyright 2007 Roy Marples
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# All rights reserved
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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extra_commands="reset"
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hostid_file=${hostid_file:-/etc/hostid}
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depend() {
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need checkroot
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}
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_set() {
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local id=0
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[ -n "$1" ] && id=$1
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ebegin "Setting Host UUID: ${id}"
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sysctl kern.hostuuid="${id}" >/dev/null
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eend $? || return 1
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if [ -n "$1" ]; then
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id=$(echo "$1" | md5)
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id="0x${id%????????????????????????}"
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fi
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ebegin "Setting Host ID: ${id}"
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sysctl kern.hostid="${id}" >/dev/null
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eend $?
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}
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# First we check to see if there is a system UUID
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# If so then we use that and erase the hostid file,
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# otherwise we generate a random UUID.
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reset() {
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local uuid=$(kenv smbios.system.uuid 2>/dev/null)
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local x="[0-9a-f]"
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local y="${x}${x}${x}${x}"
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case "${uuid}" in
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${y}${y}-${y}-${y}-${y}-${y}${y}${y});;
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*) uuid=;;
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esac
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if [ -n "${uuid}" ]; then
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rm -f "${hostid_file}"
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else
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uuid=$(uuidgen)
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if [ -z "${uuid}" ]; then
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eerror "Unable to generate a UUID"
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return 1
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fi
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if ! echo "${uuid}" > "${hostid_file}"; then
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eerror "Failed to store UUID in \`${hostid_file}'"
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return 1
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fi
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fi
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_set "${uuid}"
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}
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start()
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{
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if [ -r "${hostid_file}" ]; then
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_set $(cat "${hostid_file}")
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else
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reset
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fi
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}
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stop() {
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_set
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}
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