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