1168546Spjd#!/bin/sh 2168546Spjd# 3168546Spjd# Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org> 4168546Spjd# All rights reserved. 5168546Spjd# 6168546Spjd# Redistribution and use in source and binary forms, with or without 7168546Spjd# modification, are permitted provided that the following conditions 8168546Spjd# are met: 9168546Spjd# 1. Redistributions of source code must retain the above copyright 10168546Spjd# notice, this list of conditions and the following disclaimer. 11168546Spjd# 2. Redistributions in binary form must reproduce the above copyright 12168546Spjd# notice, this list of conditions and the following disclaimer in the 13168546Spjd# documentation and/or other materials provided with the distribution. 14168546Spjd# 15168546Spjd# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 16168546Spjd# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17168546Spjd# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18168546Spjd# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 19168546Spjd# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20168546Spjd# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21168546Spjd# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22168546Spjd# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23168546Spjd# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24168546Spjd# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25168546Spjd# SUCH DAMAGE. 26168546Spjd# 27168546Spjd# $FreeBSD: releng/10.3/etc/rc.d/hostid 220153 2011-03-30 01:19:00Z emaste $ 28168546Spjd# 29168546Spjd 30168546Spjd# PROVIDE: hostid 31208307Sdougb# REQUIRE: sysctl 32168546Spjd# KEYWORD: nojail 33168546Spjd 34168546Spjd. /etc/rc.subr 35168546Spjd 36168546Spjdname="hostid" 37168546Spjdstart_cmd="hostid_start" 38168546Spjdstop_cmd=":" 39168546Spjdreset_cmd="hostid_reset" 40168546Spjdextra_commands="reset" 41168546Spjdrcvar="hostid_enable" 42168546Spjd 43168546Spjdhostid_set() 44168546Spjd{ 45168546Spjd uuid=$1 46168546Spjd # Generate hostid based on hostuuid - take first four bytes from md5(uuid). 47178809Smtm id=`echo -n $uuid | /sbin/md5` 48168546Spjd id="0x${id%????????????????????????}" 49179945Smtm 50168546Spjd # Set both kern.hostuuid and kern.hostid. 51179945Smtm # 52197947Sdougb check_startmsgs && echo "Setting hostuuid: ${uuid}." 53220153Semaste ${SYSCTL} kern.hostuuid="${uuid}" >/dev/null 54197947Sdougb check_startmsgs && echo "Setting hostid: ${id}." 55220153Semaste ${SYSCTL} kern.hostid=${id} >/dev/null 56168546Spjd} 57168546Spjd 58168607Spjdhostid_hardware() 59168607Spjd{ 60175618Sru uuid=`kenv -q smbios.system.uuid` 61169818Srse x="[0-9a-f]" 62168607Spjd y=$x$x$x$x 63168607Spjd case "${uuid}" in 64168607Spjd $y$y-$y-$y-$y-$y$y$y) 65168607Spjd echo "${uuid}" 66168607Spjd ;; 67168607Spjd esac 68168607Spjd} 69168607Spjd 70195938Spjdhostid_generate() 71168546Spjd{ 72168607Spjd # First look for UUID in hardware. 73168607Spjd uuid=`hostid_hardware` 74168607Spjd if [ -z ${uuid} ]; then 75168607Spjd # If not found, fall back to software-generated UUID. 76168607Spjd uuid=`uuidgen` 77168607Spjd fi 78195938Spjd hostid_set $uuid 79195938Spjd} 80195938Spjd 81195938Spjdhostid_reset() 82195938Spjd{ 83195938Spjd hostid_generate 84168546Spjd # Store newly generated UUID in ${hostid_file}. 85168546Spjd echo $uuid > ${hostid_file} 86168546Spjd if [ $? -ne 0 ]; then 87168546Spjd warn "could not store hostuuid in ${hostid_file}." 88168546Spjd fi 89168546Spjd} 90168546Spjd 91168546Spjdhostid_start() 92168546Spjd{ 93168546Spjd # If ${hostid_file} already exists, we take UUID from there. 94168546Spjd if [ -r ${hostid_file} ]; then 95168546Spjd hostid_set `cat ${hostid_file}` 96168546Spjd else 97168546Spjd # No hostid file, generate UUID. 98195938Spjd hostid_generate 99168546Spjd fi 100168546Spjd} 101168546Spjd 102168546Spjdload_rc_config $name 103168546Spjdrun_rc_command "$1" 104