iankelling.org Git - automated-distro-installer/blob - wrt-setup

   1 #!/bin/bash
   2 # Copyright (C) 2016 Ian Kelling
   3
   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.
   8
   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.
  13
  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.
  17
  18 set -eE -o pipefail
  19 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  20
  21
  22 pmirror() {
  23     # background: upgrading all packages is not recommended because it
  24     # doesn't go into the firmware. build new firmware if you want
  25     # lots of upgrades.
  26     f=(/tmp/opkg-lists/*)
  27     if ! (( $(date -r $f +%s) + 60*60*24 > $(date +%s) )); then
  28         opkg update
  29     fi
  30 }
  31
  32 pi() {
  33     for x in "$@"; do
  34         if [[ ! $(opkg list-installed "$x") ]]; then
  35             pmirror
  36             opkg install "$@"
  37         fi
  38     done
  39 }
  40
  41 v() {
  42     printf "+ %s\n" "$*"
  43     "$@"
  44 }
  45
  46 cat >/usr/bin/arch-pxe-mount <<'EOFOUTER'
  47 #!/bin/bash
  48 # symlinks are collapsed for nfs mount points, so use a bind mount.
  49 # tried putting this in /etc/config/fstab,
  50 # then doig block mount, it didn't work. This doesn't persist across reboots,
  51 # todo: figure that out
  52 d=/run/archiso/bootmnt
  53 cat > /etc/fstab <<EOF
  54 /mnt/usb/tftpboot $d none bind 0 0
  55 EOF
  56 mount | grep $d &>/dev/null || mount $d
  57 /etc/init.d/nfsd restart
  58 EOFOUTER
  59 chmod +x /usr/bin/arch-pxe-mount
  60
  61 cat >.profile <<'EOF'
  62 # changing login shell emits spam on ssh single commands & scp
  63     # sed -i 's#/bin/ash$#/bin/bash#' /etc/passwd
  64 #https://dev.openwrt.org/ticket/13852
  65 [ "$PS1" = "" ] || {
  66        /bin/bash
  67        exit
  68 }
  69 EOF
  70 v pi kmod-usb-storage block-mount kmod-fs-ext4 nfs-kernel-server \
  71   tcpdump openvpn-openssl
  72
  73
  74
  75 sed -ri "s/option[[:space:]]*encryption[[:space:]]*'?none'?/option encryption psk2\n        option key  pictionary49/" /etc/config/wireless
  76 sed -i '/^[[:space:]]*option disabled/d' /etc/config/wireless
  77 v wifi
  78
  79
  80 v /etc/init.d/fstab enable ||:
  81
  82 # rebooting makes mounting work, but comparing lsmod,
  83 # i'm guessing this will too. todo, test it.
  84 # 255 == module already loaded
  85 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
  86
  87 # for arch pxe. The default settings in the installer expect to find
  88 # the NFS at /run/archiso/bootmnt
  89 mkdir -p /run/archiso/bootmnt
  90
  91 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
  92 # that is the case after running this or rebooting.
  93 # wiki says safe to do in case of fstab changes:
  94
  95 ## ian: commented and replaced with just an echo
  96 ## since usb port seems to be busted.
  97 echo | cedit /etc/config/fstab ||:
  98 # cedit /etc/config/fstab <<'EOF' || { v block umount; v block mount; }
  99 # config global automount
 100 #       option from_fstab 1
 101 #       option anon_mount 1
 102
 103 # config global autoswap
 104 #       option from_fstab 1
 105 #       option anon_swap 1
 106
 107 # config mount
 108 #       option target   /mnt/usb
 109 #       option device   /dev/sda2
 110 #       option fstype   ext2
 111 #       option options  rw,async,noatime,nodiratime
 112 #       option enabled  1
 113 #       option enabled_fsck 0
 114
 115 # config swap
 116 #       option device   /dev/sda1
 117 #       option enabled  1
 118
 119 # EOF
 120
 121
 122
 123 # exportfs -ra wont cut it when its the same path, but now a bind mount
 124 cedit /etc/exports <<'EOF' || v /etc/init.d/nfsd restart ||:
 125 /mnt/usb  192.168.1.0/255.255.255.0(rw,no_root_squash,insecure,sync,no_subtree_check)
 126 # for arch pxe
 127 /run/archiso/bootmnt    192.168.1.0/255.255.255.0(rw,no_root_squash,insecure,sync,no_subtree_check)
 128 EOF
 129
 130
 131 v /etc/init.d/portmap start
 132 v /etc/init.d/nfsd start
 133 v /etc/init.d/portmap enable
 134 v /etc/init.d/nfsd enable
 135
 136
 137
 138
 139
 140
 141 ######### uci example:#######
 142 # # https://wiki.openwrt.org/doc/uci
 143 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
 144 # wan="firewall.@zone[$wan_index]"
 145 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
 146 #     # default is wan
 147 #     v uci set firewall.@forwarding[0].dest=$forward_dest
 148 #     uci commit firewall
 149 #     firewall_restart=true
 150 # fi
 151
 152
 153
 154 ########## openvpn exampl
 155 ########## missing firewall settings for routing lan
 156 ########## traffic
 157 # v /etc/init.d/openvpn start
 158 # v /etc/init.d/openvpn enable
 159
 160 # # from https://wiki.openwrt.org/doc/uci/firewall
 161 # # todo: not sure if /etc/init.d/network needs restarting.
 162 # # I did, and I had to restart the vpn afterwards.
 163 # # This maps a uci interface to a real interface which is
 164 # # managed outside of uci.
 165 # v cedit /etc/config/network <<'EOF' ||:
 166 # config interface 'tun0'
 167 #         option ifname 'tun0'
 168 #         option proto 'none'
 169 # EOF
 170 # v cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 171 # config openvpn my_client_config
 172 #         option enabled 1
 173 #         option config /etc/openvpn/client.conf
 174 # EOF
 175
 176
 177 v cedit /etc/config/network <<'EOF' || v /etc/init.d/network reload
 178 config 'route' 'transmission'
 179         option 'interface' 'lan'
 180         option 'target' '10.173.0.0'
 181         option 'netmask' '255.255.0.0'
 182         option 'gateway' '192.168.1.3'
 183 EOF
 184
 185 v cedit /etc/config/firewall <<'EOF' || firewall_restart=true
 186 config redirect
 187     option name ssh
 188     option src              wan
 189     option src_dport        22
 190     option dest_ip          192.168.1.8
 191     option dest             lan
 192 config rule
 193     option src              wan
 194     option target           ACCEPT
 195     option dest_port        22
 196
 197 config redirect
 198     option name sshalt
 199     option src              wan
 200     option src_dport        2222
 201     option dest_port        22
 202     option dest_ip          192.168.1.3
 203     option dest             lan
 204 config rule
 205     option src              wan
 206     option target           ACCEPT
 207     option dest_port        2222
 208
 209 config redirect
 210     option src              wan
 211     option src_dport        443
 212     option dest             lan
 213     option dest_ip          192.168.1.8
 214     option proto            tcp
 215 config rule
 216     option src              wan
 217     option target           ACCEPT
 218     option dest_port        443
 219     option proto            tcp
 220
 221 config redirect
 222     option src              wan
 223     option src_dport        1196
 224     option dest             lan
 225     option dest_ip          192.168.1.8
 226     option proto            udp
 227 config rule
 228     option src              wan
 229     option target           ACCEPT
 230     option dest_port        1196
 231     option proto            udp
 232
 233
 234 config redirect
 235     option src              wan
 236     option src_dport        80
 237     option dest             lan
 238     option dest_ip          192.168.1.8
 239     option proto            tcp
 240 config rule
 241     option src              wan
 242     option target           ACCEPT
 243     option dest_port        80
 244     option proto            tcp
 245
 246 config redirect
 247     option name syncthing
 248     option src              wan
 249     option src_dport        22001
 250     option dest_ip          192.168.1.8
 251     option dest             lan
 252 config rule
 253     option src              wan
 254     option target           ACCEPT
 255     option dest_port        22001
 256
 257
 258
 259 EOF
 260
 261
 262
 263
 264 dnsmasq_restart=false
 265 mail_host=$(grep -F mail.iankelling.org /etc/hosts | awk '{print $1}')
 266 v cedit /etc/hosts <<EOF || dnsmasq_restart=true
 267 127.0.1.1 wrt
 268 192.168.1.1 wrt
 269 192.168.1.2 treetowl
 270 192.168.1.3 frodo
 271 192.168.1.4 htpc
 272 192.168.1.5 x2
 273 192.168.1.6 demohost
 274 #192.168.1.7 faiserver
 275 192.168.1.8 tp faiserver b8.nz
 276 192.168.1.9 n5
 277 192.168.1.10 kw
 278 192.168.1.11 kww
 279 192.168.1.12 fz
 280 72.14.176.105 li
 281 45.33.9.11 lj
 282 138.68.10.24 dopub
 283 # netns creation looks for next free subnet starting at 10.173, but I only
 284 # use one, and I would keep this one as the first created.
 285 10.173.0.2 transmission
 286 EOF
 287
 288 # if [[ $mail_host ]]; then
 289 #     sed -i '/^$mail_host/a mail.iankelling.org' /etc/hosts
 290 # fi
 291
 292
 293 # avoid using the dns servers that my isp tells me about.
 294 if [[ $(uci get dhcp.@dnsmasq[0].resolvfile) ]]; then
 295     # default is '/tmp/resolv.conf.auto', we switch to the dnsmasq default of
 296     # /etc/resolv.conf. not sure why I did this.
 297     v uci delete dhcp.@dnsmasq[0].resolvfile
 298     uci commit dhcp
 299     dnsmasq_restart=true
 300 fi
 301
 302 if [[ $(uci get dhcp.@dnsmasq[0].domain) != b8.nz ]]; then
 303     v uci set dhcp.@dnsmasq[0].domain=b8.nz
 304     uci commit dhcp
 305     dnsmasq_restart=true
 306 fi
 307 if [[ $(uci get dhcp.@dnsmasq[0].local) != b8.nz ]]; then
 308     v uci set dhcp.@dnsmasq[0].local=/b8.nz/
 309     uci commit dhcp
 310     dnsmasq_restart=true
 311 fi
 312
 313 if [[ $(uci get system.@system[0].hostname) != wrt ]]; then
 314     v uci set system.@system[0].hostname=wrt
 315     uci commit system
 316 fi
 317
 318
 319 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
 320
 321 # sometimes /mnt/usb fails, cuz it's just a flash drive,
 322 # so make sure we have this dir or else dnsmasq will fail
 323 # to start.
 324 mkdir -p /mnt/usb/tftpboot
 325 v cedit /etc/dnsmasq.conf <<'EOF' || dnsmasq_restart=true
 326
 327 ############ updating dns servers ###################3
 328
 329
 330 # this says the ip of default gateway and dns server,
 331 # but I think they are unneded and default
 332 #dhcp-option=3,192.168.1.1
 333 #dhcp-option=6,192.168.1.1
 334
 335
 336
 337 # results from googling around dnsmasq optimizations
 338 # about 50k in memory. router has 62 megs.
 339 # in a browsing session, I probably won't ever do 5000 lookups
 340 # before the ttl expiration or whatever does expiration.
 341 cache-size=10000
 342
 343 # ask all servers, use the one which responds first.
 344 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
 345 all-servers
 346
 347 # namebench benchmarks dns servers. google's dns was only
 348 # slightly less fast than some others, and I trust it more
 349 # to give accurate results, stay relatively fast, and
 350 # not do anythin too malicious, so just use that.
 351 # download namebench and run it like this:
 352 # for x in all regional isp global preferred nearby; do ./namebench.py -s $x -c US -i firefox -m weighted -J 10 -w; echo $x; hr;  done
 353 # google
 354 server=8.8.4.4
 355 server=8.8.8.8
 356 server=2001:4860:4860::8888
 357 server=2001:4860:4860::8844
 358
 359
 360 # to fixup existin ips, on the client you can do
 361 # sudo dhclient -r; sudo dhclient <interface-name>
 362
 363 # default dhcp range is 100-150
 364 dhcp-host=f4:6d:04:02:ed:66,set:treetowl,192.168.1.2,treetowl
 365 dhcp-host=00:26:18:97:bb:16,set:frodo,192.168.1.3,frodo
 366 dhcp-host=10:78:d2:da:29:22,set:htpc,192.168.1.4,htpc
 367 dhcp-host=00:1f:16:16:39:24,set:kw,192.168.1.5,x2
 368 #dhcp-host=00:1f:16:16:39:24,set:kw,192.168.1.10,kw
 369 #dhcp-host=00:c0:ca:27:e9:b2,set:kww,192.168.1.11,kww
 370 # this is so fai can have an explicit name to use for testing,
 371 # or else any random machine which did a pxe boot would get
 372 # reformatted. The mac is from doing a virt-install, cancelling it,
 373 # and copying the generated mac, so it should be randomish.
 374 dhcp-host=52:54:00:9c:ef:ad,set:demohost,192.168.1.6,demohost
 375 #dhcp-host=52:54:00:56:09:f9,set:faiserver,192.168.1.7,faiserver
 376 dhcp-host=80:fa:5b:1c:6e:cf,set:tp,192.168.1.8,tp
 377 dhcp-host=c4:43:8f:f2:79:1f,set:n5,192.168.1.9,n5
 378 # this is the ip it picks by default if dhcp fails,
 379 # so might as well use it.
 380 # hostname is the name it uses according to telnet
 381 dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,192.168.1.251,switch9429ca
 382
 383 # template
 384 # dhcp-host=,192.168.1.,
 385
 386 # Just leave the tftp server up even if we aren't doing pxe boot.
 387 # It has no sensitive info.
 388 enable-tftp=br-lan
 389 tftp-root=/mnt/usb/tftpboot
 390 EOF
 391
 392 if $dnsmasq_restart; then
 393     v /etc/init.d/dnsmasq restart
 394 fi
 395
 396 if $firewall_restart; then
 397     v /etc/init.d/firewall restart
 398 fi