3 # Copyright (c) 2007 Pawel Jakub Dawidek <pjd@FreeBSD.org>
4 # Copyright (c) 2015 Xin LI <delphij@FreeBSD.org>
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
9 # 1. Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright
12 # notice, this list of conditions and the following disclaimer in the
13 # documentation and/or other materials provided with the distribution.
15 # THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 desc="Generate a unique host ID"
38 start_cmd="hostid_start"
40 reset_cmd="hostid_reset"
41 extra_commands="reset"
47 # Generate hostid based on hostuuid - take first four bytes from md5(uuid).
48 id=`echo -n $uuid | /sbin/md5`
49 id="0x${id%????????????????????????}"
51 # Set both kern.hostuuid and kern.hostid.
53 startmsg "Setting hostuuid: ${uuid}."
54 ${SYSCTL} kern.hostuuid="${uuid}" >/dev/null
55 startmsg "Setting hostid: ${id}."
56 ${SYSCTL} kern.hostid=${id} >/dev/null
66 # Check against a blacklist before
69 00000000-0000-0000-0000-000000000000)
71 00020003-0004-0005-0006-000700080009)
73 03000200-0400-0500-0006-000700080009)
75 07090201-0103-0301-0807-060504030201)
77 11111111-1111-1111-1111-111111111111)
79 11111111-2222-3333-4444-555555555555)
81 4c4c4544-0000-2010-8020-80c04f202020)
83 58585858-5858-5858-5858-585858585858)
85 890e2d14-cacd-45d1-ae66-bc80e8bfeb0f)
87 8e275844-178f-44a8-aceb-a7d7e5178c63)
89 dc698397-fa54-4cf2-82c8-b1b5307a6a7f)
91 fefefefe-fefe-fefe-fefe-fefefefefefe)
93 *-ffff-ffff-ffff-ffffffffffff)
105 uuid=`kenv -q smbios.system.uuid`
107 if valid_hostid $uuid; then
109 elif [ "$uuid" ]; then
116 # First look for UUID in hardware.
117 uuid=`hostid_hardware`
119 # Warn about invalid UUIDs
120 if [ "${uuid}" = "INVALID" ]; then
121 warn "hostid: unable to figure out a UUID from DMI data, generating a new one"
126 # Generate a random UUID if invalid or not found
127 if [ -z "${uuid}" ]; then
128 # If not found, fall back to software-generated UUID.
129 uuid=`uuidgen ${hostid_uuidgen_flags}`
137 # Store newly generated UUID in ${hostid_file}.
138 echo $uuid > ${hostid_file}
139 if [ $? -ne 0 ]; then
140 warn "could not store hostuuid in ${hostid_file}."
146 # If ${hostid_file} already exists, we take UUID from there.
147 if [ -r ${hostid_file} ]; then
148 read saved_hostid < ${hostid_file}
149 if valid_hostid ${saved_hostid}; then
150 hostid_set ${saved_hostid}
155 # No hostid file, generate UUID.