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

   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 dev2=false
  22 if [[ $1 == -2 ]]; then
  23   dev2=true
  24 fi
  25
  26 pmirror() {
  27   # background: upgrading all packages is not recommended because it
  28   # doesn't go into the firmware. build new firmware if you want
  29   # lots of upgrades. I think /tmp/opkg-lists is a pre openwrt 14 location.
  30   f=(/var/opkg-lists/*)
  31   if ! (( $(date -r $f +%s) + 60*60*24 > $(date +%s) )); then
  32     opkg update
  33   fi
  34 }
  35
  36 pi() {
  37   for x in "$@"; do
  38     if [[ ! $(opkg list-installed "$x") ]]; then
  39       pmirror
  40       opkg install "$@"
  41     fi
  42   done
  43 }
  44
  45 v() {
  46   printf "+ %s\n" "$*"
  47   "$@"
  48 }
  49
  50 ######### uci example:#######
  51 # # https://wiki.openwrt.org/doc/uci
  52 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
  53 # wan="firewall.@zone[$wan_index]"
  54 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
  55 #     # default is wan
  56 #     v uci set firewall.@forwarding[0].dest=$forward_dest
  57 #     uci commit firewall
  58 #     firewall_restart=true
  59 # fi
  60 ####### end uci example #####
  61
  62 uset() {
  63   local key="$1"
  64   local val="$2"
  65   local service="${key%%.*}"
  66   restart_var=${service}_restart
  67   if [[ ! ${!restart_var} ]]; then
  68     eval $restart_var=false
  69   fi
  70   if [[ $(uci get "$key") != "$val" ]]; then
  71     v uci set "$key"="$val"
  72     uci commit $service
  73     eval $restart_var=true
  74   fi
  75 }
  76
  77
  78 ### network config
  79 ###
  80 ssid="check out gnu.org"
  81 lan=10.0.0.0
  82 if $dev2; then
  83   ssid="gnuv3"
  84   lan=10.1.0.0
  85 fi
  86 mask=255.255.0.0
  87 l=${lan%.0}
  88
  89 passwd -l root ||: #already locked fails
  90
  91 sed -ibak '/^root:/d' /etc/shadow
  92 # /root/router created by manually running passwd then copying the resulting
  93 # line. We have no mkpasswd on wrt/librecmc, then we scp it in.
  94 cat /root/router >>/etc/shadow
  95 # otherwise, serial console gets root login with no password
  96 uset system.@system[0].ttylogin 1
  97
  98
  99 cat >/usr/bin/archlike-pxe-mount <<'EOFOUTER'
 100 #!/bin/bash
 101 # symlinks are collapsed for nfs mount points, so use a bind mount.
 102 # tried putting this in /etc/config/fstab,
 103 # then doing block mount, it didn't work. This doesn't persist across reboots,
 104 # todo: figure that out
 105 rm -f /etc/fstab
 106 for d in /run/{arch,parabola}iso/bootmnt; do
 107 cat >>/etc/fstab <<EOF
 108 /mnt/usb/tftpboot $d none bind 0 0
 109 EOF
 110 mount | grep $d &>/dev/null || mount $d
 111 done
 112 /etc/init.d/nfsd restart
 113 EOFOUTER
 114 chmod +x /usr/bin/archlike-pxe-mount
 115
 116 sed -i '/^root:/s,/bin/ash$,/bin/bash,' /etc/passwd
 117 v pi kmod-usb-storage block-mount kmod-fs-ext4 nfs-kernel-server \
 118   tcpdump openvpn-openssl adblock libusb-compat /root/relay_1.0-1_mips_24kc.ipk
 119
 120
 121
 122
 123
 124 v /etc/init.d/fstab enable ||:
 125
 126 # rebooting makes mounting work, but comparing lsmod,
 127 # i'm guessing this will too. todo, test it.
 128 # 255 == module already loaded
 129 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
 130
 131 # for archlike pxe. The default settings in the installer expect to find
 132 # the NFS at one of these dirs
 133 mkdir -p /run/archiso/bootmnt
 134 mkdir -p /run/parabolaiso/bootmnt
 135
 136 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
 137 # that is the case after running this or rebooting.
 138 # wiki says safe to do in case of fstab changes:
 139
 140 ## ian: usb broke on old router. if that happens, can just comment this to disable problems
 141 echo | cedit /etc/config/fstab ||:
 142 cedit /etc/config/fstab <<EOF || { v block umount; v block mount; }
 143 config global automount
 144       option from_fstab 1
 145       option anon_mount 1
 146
 147 config mount
 148 # /overlay is an / overlay mount for installing extra packages, etc.
 149 # https://openwrt.org/docs/guide-user/additional-software/extroot_configuration
 150       option target     /mnt/usb
 151 #      option target    /overlay
 152       option device     /dev/sda1
 153       option fstype     ext4
 154       option options    rw,async,noatime,nodiratime
 155       option enabled    0
 156 EOF
 157
 158
 159 # ian: disabled because afaik I don't need it, no benefit.
 160 # config global autoswap
 161 #       option from_fstab 1
 162 #       option anon_swap 1
 163
 164 # config swap
 165 #       option device   /dev/sda1
 166 #       option enabled  1
 167
 168
 169
 170
 171 # exportfs -ra wont cut it when its the same path, but now a bind mount
 172 # todo: restart nfs when nfs is enabled?
 173 #cedit /etc/exports <<EOF || v /etc/init.d/nfsd restart ||:
 174 cedit /etc/exports <<EOF ||:
 175 /mnt/usb  $lan/$netmask(rw,no_root_squash,insecure,sync,no_subtree_check)
 176 # for arch pxe
 177 /run/archiso/bootmnt    $lan/$netmask(rw,no_root_squash,insecure,sync,no_subtree_check)
 178 /run/parabolaiso/bootmnt        $lan/$netmask(rw,no_root_squash,insecure,sync,no_subtree_check)
 179 EOF
 180
 181
 182 # todo: enable nfs when we need it only.
 183 # v /etc/init.d/portmap start
 184 # v /etc/init.d/nfsd start
 185 # v /etc/init.d/portmap enable
 186 # v /etc/init.d/nfsd enable
 187
 188
 189
 190
 191
 192
 193
 194 uset dropbear.@dropbear[0].PasswordAuth 0
 195 uset dropbear.@dropbear[0].RootPasswordAuth 0
 196 uset dropbear.@dropbear[0].Port 2220
 197
 198 wireless_restart=false
 199 key=pictionary49
 200 for x in 0 1; do
 201   uset wireless.default_radio$x.ssid "$ssid"
 202   uset wireless.default_radio$x.key $key
 203   uset wireless.default_radio$x.encryption psk2
 204   if [[ $(uci get wireless.radio$x.disabled 2>/dev/null) ]]; then
 205     v uci delete wireless.radio$x.disabled
 206     wireless_restart=true
 207   fi
 208 done
 209
 210 if $wireless_restart; then
 211   v wifi
 212 fi
 213
 214
 215 ########## openvpn exampl
 216 ########## missing firewall settings for routing lan
 217 ########## traffic
 218 # v /etc/init.d/openvpn start
 219 # v /etc/init.d/openvpn enable
 220
 221 # # from https://wiki.openwrt.org/doc/uci/firewall
 222 # # todo: not sure if /etc/init.d/network needs restarting.
 223 # # I did, and I had to restart the vpn afterwards.
 224 # # This maps a uci interface to a real interface which is
 225 # # managed outside of uci.
 226 # v cedit /etc/config/network <<'EOF' ||:
 227 # config interface 'tun0'
 228 #         option ifname 'tun0'
 229 #         option proto 'none'
 230 # EOF
 231 # v cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 232 # config openvpn my_client_config
 233 #         option enabled 1
 234 #         option config /etc/openvpn/client.conf
 235 # EOF
 236
 237
 238
 239 v cedit /etc/config/network <<EOF || v /etc/init.d/network reload
 240 config 'route' 'transmission'
 241         option 'interface' 'lan'
 242         option 'target' '10.173.0.0'
 243         option 'netmask' '255.255.0.0'
 244         option 'gateway' '$l.3'
 245 EOF
 246
 247 firewall_restart=false
 248 v cedit /etc/config/firewall <<EOF || firewall_restart=true
 249
 250
 251 config redirect
 252     option name ssh
 253     option src              wan
 254     option src_dport        22
 255     option dest_ip          $l.8
 256     option dest             lan
 257 config rule
 258     option src              wan
 259     option target           ACCEPT
 260     option dest_port        22
 261
 262 config redirect
 263     option name sshalt
 264     option src              wan
 265     option src_dport        2222
 266     option dest_port        22
 267     option dest_ip          $l.3
 268     option dest             lan
 269 config rule
 270     option src              wan
 271     option target           ACCEPT
 272     option dest_port        2222
 273
 274 config rule
 275     option src              wan
 276     option target           ACCEPT
 277     option dest_port        2220
 278
 279
 280 config redirect
 281     option src              wan
 282     option src_dport        443
 283     option dest             lan
 284     option dest_ip          $l.8
 285     option proto            tcp
 286 config rule
 287     option src              wan
 288     option target           ACCEPT
 289     option dest_port        443
 290     option proto            tcp
 291
 292 config redirect
 293     option src              wan
 294     option src_dport        1196
 295     option dest             lan
 296     option dest_ip          $l.8
 297     option proto            udp
 298 config rule
 299     option src              wan
 300     option target           ACCEPT
 301     option dest_port        1196
 302     option proto            udp
 303
 304
 305 config redirect
 306     option src              wan
 307     option src_dport        80
 308     option dest             lan
 309     option dest_ip          $l.8
 310     option proto            tcp
 311 config rule
 312     option src              wan
 313     option target           ACCEPT
 314     option dest_port        80
 315     option proto            tcp
 316
 317 config redirect
 318     option name syncthing
 319     option src              wan
 320     option src_dport        22001
 321     option dest_ip          $l.8
 322     option dest             lan
 323 config rule
 324     option src              wan
 325     option target           ACCEPT
 326     option dest_port        22001
 327
 328
 329
 330 EOF
 331
 332
 333
 334
 335 dnsmasq_restart=false
 336 v cedit /etc/hosts <<EOF || dnsmasq_restart=true
 337 127.0.1.1 wrt
 338 $l.1 wrt
 339 $l.2 kd
 340 $l.3 frodo
 341 $l.4 htpc
 342 $l.5 x2
 343 $l.6 demohost
 344 $l.7 x3
 345 $l.8 tp b8.nz faiserver
 346 $l.9 bb8
 347 72.14.176.105 li
 348
 349 # netns creation looks for next free subnet starting at 10.173, but I only
 350 # use one, and I would keep this one as the first created.
 351 10.173.0.2 transmission
 352 EOF
 353
 354 #mail_host=$(grep -F mail.iankelling.org /etc/hosts | awk '{print $1}')
 355 # if [[ $mail_host ]]; then
 356 #     sed -i '/^$mail_host/a mail.iankelling.org' /etc/hosts
 357 # fi
 358
 359
 360 # avoid using the dns servers that my isp tells me about.
 361 if [[ $(uci get dhcp.@dnsmasq[0].resolvfile 2>/dev/null) ]]; then
 362   # default is '/tmp/resolv.conf.auto', we switch to the dnsmasq default of
 363   # /etc/resolv.conf. not sure why I did this.
 364   v uci delete dhcp.@dnsmasq[0].resolvfile
 365   uci commit dhcp
 366   dnsmasq_restart=true
 367 fi
 368
 369 uset dhcp.@dnsmasq[0].domain b8.nz
 370 uset dhcp.@dnsmasq[0].local /b8.nz/
 371 uset system.@system[0].hostname wrt
 372
 373 if [[ $(uci get adblock.global.adb_enabled) != 1 ]]; then
 374   v uci set adblock.global.adb_enabled=1
 375   uci commit adblock
 376   /etc/init.d/adblock restart
 377 fi
 378 # https://github.com/openwrt/packages/tree/master/net/adblock/files
 379 cat >/etc/crontabs/root <<'EOF'
 380 0 06 * * *    /etc/init.d/adblock reload
 381 EOF
 382
 383
 384 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
 385
 386 # sometimes /mnt/usb fails, cuz it's just a flash drive,
 387 # so make sure we have this dir or else dnsmasq will fail
 388 # to start.
 389 mkdir -p /mnt/usb/tftpboot
 390 v cedit /etc/dnsmasq.conf <<EOF || dnsmasq_restart=true
 391
 392 # https://ret2got.wordpress.com/2018/01/19/how-your-ethereum-can-be-stolen-using-dns-rebinding/
 393 stop-dns-rebind
 394
 395 # this says the ip of default gateway and dns server,
 396 # but I think they are unneded and default
 397 #dhcp-option=3,$l.1
 398 #dhcp-option=6,$l.1
 399
 400
 401
 402 # results from googling around dnsmasq optimizations
 403 # about 50k in memory. router has 62 megs.
 404 # in a browsing session, I probably won't ever do 5000 lookups
 405 # before the ttl expiration or whatever does expiration.
 406 cache-size=10000
 407
 408 # ask all servers, use the one which responds first.
 409 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
 410 all-servers
 411
 412 # namebench benchmarks dns servers. google's dns was only
 413 # slightly less fast than some others, and I trust it more
 414 # to give accurate results, stay relatively fast, and
 415 # not do anythin too malicious, so just use that.
 416 # download namebench and run it like this:
 417 # for x in all regional isp global preferred nearby; do ./namebench.py -s \$x -c US -i firefox -m weighted -J 10 -w; echo \$x; hr;  done
 418 # google
 419 server=8.8.4.4
 420 server=8.8.8.8
 421 server=2001:4860:4860::8888
 422 server=2001:4860:4860::8844
 423
 424
 425 # to fixup existin ips, on the client you can do
 426 # sudo dhclient -r; sudo dhclient <interface-name>
 427
 428 # default dhcp range is 100-150
 429 # bottom port,  iPXE (PCI 03:00.0) in seabios boot menu
 430 dhcp-host=c8:60:00:31:6b:75,set:kd,$l.2,kd
 431 # top port, iPXE (PCI 04:00.0) in seabios boot menu
 432 #dhcp-host=c8:60:00:2b:15:07,set:kd,$l.2,kd
 433 dhcp-host=00:26:18:97:bb:16,set:frodo,$l.3,frodo
 434 dhcp-host=10:78:d2:da:29:22,set:htpc,$l.4,htpc
 435 dhcp-host=00:1f:16:16:39:24,set:x2,$l.5,x2
 436 # This is so fai can have an explicit name to use for testing,
 437 # or else any random machine which did a pxe boot would get
 438 # reformatted. The mac is from doing a virt-install, cancelling it,
 439 # and copying the generated mac, so it should be randomish.
 440 dhcp-host=52:54:00:9c:ef:ad,set:demohost,$l.6,demohost
 441 dhcp-host=00:1f:16:14:01:d8,set:tp,$l.7,x3
 442 dhcp-host=80:fa:5b:1c:6e:cf,set:tp,$l.8,tp
 443
 444 # faiserver vm
 445 dhcp-host=52:54:00:56:09:f9,set:faiserver,$l.15,faiserver
 446
 447 # This is the ip it picks by default if dhcp fails,
 448 # so might as well use it.
 449 # hostname is the name it uses according to telnet
 450 dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,$l.251,switch9429ca
 451
 452 # template
 453 # dhcp-host=,$l.,
 454
 455 # Just leave the tftp server up even if we aren't doing pxe boot.
 456 # It has no sensitive info.
 457 enable-tftp=br-lan
 458 tftp-root=/mnt/usb/tftpboot
 459 EOF
 460
 461 if $dnsmasq_restart; then
 462   v /etc/init.d/dnsmasq restart
 463 fi
 464
 465 if $firewall_restart; then
 466   v /etc/init.d/firewall restart
 467 fi
 468
 469 uset network.lan.ipaddr $l.1
 470 uset network.lan.netmask $mask
 471
 472 if $network_restart; then
 473   reboot
 474 fi
 475 if $dropbear_restart; then
 476   v /etc/init.d/dropbear restart
 477 fi
 478
 479 exit 0