2 # Copyright (C) 2016 Ian Kelling
4 # This program is free software; you can redistribute it and/or
5 # modify it under the terms of the GNU General Public License
6 # as published by the Free Software Foundation; either version 2
7 # of the License, or (at your option) any later version.
9 # This program is distributed in the hope that it will be useful,
10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 # GNU General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 x
="$(readlink -f "$BASH_SOURCE")"; source "${x%/*}/bash-trace"
25 Usage: ${0##*/} [OPTIONS] [HOST TYPE]
26 Configure dnsmasq boot options and fai-chboot if appropriate.
28 Without HOST TYPE, disable server and fai server.
30 HOST A hostname known to the dhcp server, or default for all.
31 TYPE One of arch, plain, fai.
33 -d Don't alter dhcp config. Only make sense for fai type, and on network
34 other than home network.
35 -r Don't redeploy fai config. For example, if there is a different host
38 -a Don't setup pxe, just Wait for 2 dhcp acks, then disable the pxe
39 server after a delay. First ack is for pxe boot, 2nd ack is
40 for os boot. Sometimes on debian, there is a 3rd one shortly
41 after the 2nd. I can't remember exactly why this caused a
42 problem, but I'm hoping the sleep will take care of it.
43 -S sets FAI_ACTION=sysinfo, see myfai-chboot for more info.
44 -w Setup pxe, then wait like -a.
45 -h|--help Print help and exit
48 Note, when switching between plain and arch, you will need to
53 ln -s <arch/debian iso dir> tftpboot
56 Note: Uses GNU getopt options parsing style
61 ##### begin command line parsing ########
67 temp
=$
(getopt
-l help adrSwh
"$@") || usage
1
71 -a) wait=true
; set=false
; shift ;;
72 -d) dhcp
=false
; shift ;;
73 -r) redep
=false
; shift ;;
74 -S) chboot_arg
=-S; shift ;;
75 -w) wait=true
; set=true
; shift ;;
78 *) echo "$0: Internal error!" ; exit 1 ;;
82 read -r host type <<<"$@"
87 echo "$0: error: expected 0 or 2 arguments"
93 if $wait && ! $dhcp; then
94 echo "$0: error -w conflicts with -d, choose one or other"
99 if [[ $host && $host != default
]]; then
100 host_tag
="tag:$host,"
103 ##### end command line parsing ########
112 dhcp-option-force=209,boot/syslinux/archiso.cfg
113 dhcp-option-force=210,/arch/
114 dhcp-boot=${host_tag}/arch/boot/syslinux/lpxelinux.0
119 # if arch was used before, this additionally needs
120 # the tftp link in /mnt/usb to be changed.
122 dhcp-boot=${host_tag}pxelinux.0
128 dhcp-boot=${host_tag}pxelinux.0,faiserver.b8.nz,faiserver.b8.nz
137 regex
=".*DHCPACK.*$host_regex$"
139 while (( i
!= wait_count
)) && read -r line
; do
140 if [[ $line =~
$regex ]]; then
144 done < <(ssh wrt logread
-f)
150 echo "$0: updating dnsmasq.conf:"
152 ${type:-:}|
ssh wrt
"cedit pxe /etc/dnsmasq.conf || /etc/init.d/dnsmasq restart
153 $([[ $type == arch ]] && echo arch-pxe-mount)"
159 if [[ $type == fai
]]; then
160 e myfai-chboot
$chboot_arg $host
165 # This will fail if faiserver is not setup, so ignore any
166 # failure and don't bother us about it.
167 myfai-chboot
&>/dev
/null ||
:
172 # fai's debian jessie 8.5ish does 2 dhcp requests when booting,
173 # roughly 4 seconds apart. Earlier
174 # versions did just 1. Now testing on a vm, it does 1.
176 echo "waiting for $acks dhcp acks then disabling pxe"
181 # previously tried waiting for one more ack then disabling faiserver,
182 # since it can contain sensitive info, so turn it off when not in use,
183 # but disabling that for now as it's inconvenient to clean this
184 # up and run it in the background etc.
186 # if [[ $type == fai ]]; then
187 # echo "waiting for 1 dhcp ack then disabling fai server"