mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-25 11:37:56 +00:00
100 lines
2.7 KiB
Bash
Executable File
100 lines
2.7 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
|
|
# 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 AUTHORS 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 AUTHORS 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.
|
|
#
|
|
# $FreeBSD$
|
|
#
|
|
|
|
# PROVIDE: hostid
|
|
# REQUIRE: root
|
|
# BEFORE: mountcritlocal
|
|
# KEYWORD: nojail
|
|
|
|
. /etc/rc.subr
|
|
|
|
name="hostid"
|
|
start_cmd="hostid_start"
|
|
stop_cmd=":"
|
|
reset_cmd="hostid_reset"
|
|
extra_commands="reset"
|
|
rcvar="hostid_enable"
|
|
|
|
hostid_set()
|
|
{
|
|
uuid=$1
|
|
# Generate hostid based on hostuuid - take first four bytes from md5(uuid).
|
|
id=`echo -n $uuid | /sbin/md5`
|
|
id="0x${id%????????????????????????}"
|
|
|
|
# Set both kern.hostuuid and kern.hostid.
|
|
#
|
|
[ -z "${rc_quiet}" ] && echo "Setting hostuuid: ${uuid}."
|
|
${SYSCTL_W} kern.hostuuid="${uuid}" >/dev/null
|
|
[ -z "${rc_quiet}" ] && echo "Setting hostid: ${id}."
|
|
${SYSCTL_W} kern.hostid=${id} >/dev/null
|
|
}
|
|
|
|
hostid_hardware()
|
|
{
|
|
uuid=`kenv -q smbios.system.uuid`
|
|
x="[0-9a-f]"
|
|
y=$x$x$x$x
|
|
case "${uuid}" in
|
|
$y$y-$y-$y-$y-$y$y$y)
|
|
echo "${uuid}"
|
|
;;
|
|
esac
|
|
}
|
|
|
|
hostid_reset()
|
|
{
|
|
# First look for UUID in hardware.
|
|
uuid=`hostid_hardware`
|
|
if [ -z ${uuid} ]; then
|
|
# If not found, fall back to software-generated UUID.
|
|
uuid=`uuidgen`
|
|
fi
|
|
# Store newly generated UUID in ${hostid_file}.
|
|
echo $uuid > ${hostid_file}
|
|
if [ $? -ne 0 ]; then
|
|
warn "could not store hostuuid in ${hostid_file}."
|
|
fi
|
|
hostid_set $uuid
|
|
}
|
|
|
|
hostid_start()
|
|
{
|
|
# If ${hostid_file} already exists, we take UUID from there.
|
|
if [ -r ${hostid_file} ]; then
|
|
hostid_set `cat ${hostid_file}`
|
|
else
|
|
# No hostid file, generate UUID.
|
|
hostid_reset
|
|
fi
|
|
}
|
|
|
|
load_rc_config $name
|
|
run_rc_command "$1"
|