24abaf28df
and ISO/IEC-9834-8:2005 is with LOWER-CASE hexadecimal characters only, so translate the (usually upper-case and this way not conforming) representation of the BIOS UUID when reading it. Also be more strict about the valid characters in the textual representation by checking for just the hexadecimal characters.
98 lines
2.7 KiB
Bash
98 lines
2.7 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
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# All rights reserved.
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#
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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 AUTHORS 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 AUTHORS 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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#
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# $FreeBSD$
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#
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# PROVIDE: hostid
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# REQUIRE: root
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# BEFORE: mountcritlocal
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# KEYWORD: nojail
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. /etc/rc.subr
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name="hostid"
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start_cmd="hostid_start"
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stop_cmd=":"
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reset_cmd="hostid_reset"
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extra_commands="reset"
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rcvar="hostid_enable"
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hostid_set()
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{
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uuid=$1
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# Generate hostid based on hostuuid - take first four bytes from md5(uuid).
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id=`echo -n $uuid | md5`
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id="0x${id%????????????????????????}"
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# Set both kern.hostuuid and kern.hostid.
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echo "Setting hostuuid: ${uuid}."
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${SYSCTL_W} kern.hostuuid="${uuid}" >/dev/null
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echo "Setting hostid: ${id}."
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${SYSCTL_W} kern.hostid=${id} >/dev/null
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}
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hostid_hardware()
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{
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uuid=`kenv smbios.system.uuid 2>/dev/null | tr '[:upper:]' '[:lower:]'`
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x="[0-9a-f]"
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y=$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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echo "${uuid}"
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;;
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esac
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}
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hostid_reset()
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{
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# First look for UUID in hardware.
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uuid=`hostid_hardware`
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if [ -z ${uuid} ]; then
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# If not found, fall back to software-generated UUID.
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uuid=`uuidgen`
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fi
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# Store newly generated UUID in ${hostid_file}.
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echo $uuid > ${hostid_file}
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if [ $? -ne 0 ]; then
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warn "could not store hostuuid in ${hostid_file}."
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fi
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hostid_set $uuid
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}
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hostid_start()
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{
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# If ${hostid_file} already exists, we take UUID from there.
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if [ -r ${hostid_file} ]; then
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hostid_set `cat ${hostid_file}`
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else
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# No hostid file, generate UUID.
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hostid_reset
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fi
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}
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load_rc_config $name
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run_rc_command "$1"
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