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
  19 set -eE -o pipefail
  20 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  21
  22
  23 usage() {
  24   cat <<EOF
  25 usage: ${0##*/} [-h] [-t 2|3|test|client] [-m WIRELESS_MAC]
  26 setup my router in general: dhcp, dns, etc.
  27
  28 Type 2 or 3 is for setting up a backup device, there are two kinds so
  29 that you can switch the main device to a backup, then a backup to the
  30 main. Type test is for setting up a testing device.
  31
  32 Passing an empty string for WIRELESS_MAC, or if none is defined in the
  33 secrets file, will cause the device's native mac to be used.
  34
  35 EOF
  36
  37   exit $1
  38 }
  39
  40
  41
  42
  43 dnsmasq_restart=false
  44 firewall_restart=false
  45 dev2=false
  46 test=false
  47 libremanage_host=wrt2
  48
  49 secrets=false
  50 if [[ -e /root/router-secrets ]]; then
  51   secrets=true
  52   source /root/router-secrets
  53 fi
  54 rmac=$(cat /sys/class/net/eth0/address)
  55 if $secrets; then
  56   hostname=${rhost[$rmac]}
  57 fi
  58 : ${hostname:=wrt}
  59
  60
  61 lanip=1
  62 while getopts hm:t: opt; do
  63   case $opt in
  64     h) usage ;;
  65     t)
  66       case $2 in
  67         2|3)
  68           dev2=true
  69           libremanage_host=$hostname
  70           ;;&
  71         2)
  72           lanip=4
  73           hostname=wrt2
  74           ;;
  75         3)
  76           lanip=14
  77           hostname=wrt3
  78           ;;
  79         test)
  80           test=true
  81           ;;
  82         client)
  83           client=true
  84           ;;
  85         *) echo "$0: unexpected arg to -t: $*" >&2; usage 1 ;;
  86       esac
  87       ;;
  88     m)  mac=$OPTARG ;;
  89     *) echo "$0: Internal error! unexpected args: $*" >&2 ; usage 1 ;;
  90   esac
  91 done
  92 shift "$((OPTIND-1))"   # Discard the options and sentinel --
  93
  94 if [[ ! $mac ]] && ! $test && $secrets; then
  95   # if we wanted to increment it
  96   #mac=${mac:0: -1}$((${mac: -1} + 2))
  97   mac=${rwmac[$rmac]}
  98 fi
  99
 100 if (( $# != 0 )); then
 101   usage 1
 102 fi
 103
 104
 105 macpre=${mac:0: -1}
 106 macsuf=${mac: -1}
 107
 108
 109 p_updated=false
 110 pmirror() {
 111   if $p_updated; then
 112     return
 113   fi
 114   # background: upgrading all packages is not recommended because it
 115   # doesn't go into the firmware. build new firmware if you want
 116   # lots of upgrades. I think /tmp/opkg-lists is a pre openwrt 14 location.
 117   f=(/var/opkg-lists/*)
 118   if ! (( $(date -r $f +%s) + 60*60*24 > $(date +%s) )); then
 119     if ! opkg update; then
 120       echo "$0: warning: opkg update failed" >&2
 121     fi
 122     p_updated=true
 123   fi
 124 }
 125
 126 pi() {
 127   to_install=()
 128   for p in "$@"; do
 129     pname=${p##*/}
 130     pname=${pname%%_*}
 131     if [[ ! $(opkg list-installed "$pname") ]]; then
 132       to_install+=($p)
 133       pmirror
 134     fi
 135   done
 136   if [[ $to_install ]]; then
 137     opkg install ${to_install[@]}
 138   fi
 139 }
 140
 141 v() {
 142   printf "+ %s\n" "$*"
 143   "$@"
 144 }
 145
 146 ######### uci example:#######
 147 # # https://wiki.openwrt.org/doc/uci
 148 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
 149 # wan="firewall.@zone[$wan_index]"
 150 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
 151 #     # default is wan
 152 #     v uci set firewall.@forwarding[0].dest=$forward_dest
 153 #     uci commit firewall
 154 #     firewall_restart=true
 155 # fi
 156 ####### end uci example #####
 157
 158 uset() {
 159   printf "+ uset %s\n" "$*"
 160   local key="$1"
 161   local val="$2"
 162   local service="${key%%.*}"
 163   restart_var=${service}_restart
 164   if [[ ! ${!restart_var} ]]; then
 165     eval $restart_var=false
 166   fi
 167   if [[ $(uci get "$key") != "$val" ]]; then
 168     v uci set "$key"="$val"
 169     uci commit $service
 170     eval $restart_var=true
 171   fi
 172 }
 173
 174 udel() {
 175   printf "+ udel %s\n" "$*"
 176   local key="$1"
 177   local val="$2"
 178   local service="${key%%.*}"
 179   restart_var=${service}_restart
 180   if [[ ! ${!restart_var} ]]; then
 181     eval $restart_var=false
 182   fi
 183   if uci get "$key" &>/dev/null; then
 184     v uci set "$key"="$val"
 185     uci commit $service
 186     eval $restart_var=true
 187   fi
 188 }
 189
 190
 191
 192 ### network config
 193 ###
 194 lan=10.0.0.0
 195 if $test; then
 196   lan=10.1.0.0
 197 elif [[ $hostname == cmc ]]; then
 198   lan=10.2.0.0
 199 elif $client; then
 200   lan=10.3.0.0
 201 fi
 202
 203 if $test; then
 204   ssid="gnuv3"
 205 elif $secrets; then
 206   ssid=${rssid[$rmac]}
 207 fi
 208
 209 : ${ssid:=librecmc}
 210
 211
 212 if $secrets; then
 213   key=${rkey[$rmac]}
 214 fi
 215 : ${key:=pictionary49}
 216
 217 mask=255.255.0.0
 218 cidr=16
 219 l=${lan%.0}
 220
 221 passwd -l root ||: #already locked fails
 222
 223 sed -ibak '/^root:/d' /etc/shadow
 224 # /root/router created by manually running passwd then copying the resulting
 225 # line. We have no mkpasswd on wrt/librecmc, then we scp it in.
 226 cat /root/router >>/etc/shadow
 227 # otherwise, serial console gets root login with no password
 228 uset system.@system[0].ttylogin 1
 229
 230
 231
 232 cat >/usr/bin/archlike-pxe-mount <<'EOFOUTER'
 233 #!/bin/bash
 234 # symlinks are collapsed for nfs mount points, so use a bind mount.
 235 # tried putting this in /etc/config/fstab,
 236 # then doing block mount, it didn't work. This doesn't persist across reboots,
 237 # todo: figure that out
 238 rm -f /etc/fstab
 239 for d in /run/{arch,parabola}iso/bootmnt; do
 240 cat >>/etc/fstab <<EOF
 241 /mnt/usb/tftpboot $d none bind 0 0
 242 EOF
 243 mount | grep $d &>/dev/null || mount $d
 244 done
 245 /etc/init.d/nfsd restart
 246 EOFOUTER
 247 chmod +x /usr/bin/archlike-pxe-mount
 248
 249 sed -i '/^root:/s,/bin/ash$,/bin/bash,' /etc/passwd
 250
 251
 252
 253 uset dropbear.@dropbear[0].PasswordAuth 0
 254 uset dropbear.@dropbear[0].RootPasswordAuth 0
 255 uset dropbear.@dropbear[0].Port 2220
 256 if ! cmp -s /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key; then
 257   cp /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key
 258   dropbear_restart=true
 259 fi
 260
 261 if $dropbear_restart; then
 262   v /etc/init.d/dropbear restart
 263 fi
 264
 265
 266 uset network.lan.ipaddr $l.$lanip
 267 uset network.lan.netmask $mask
 268 if $dev2  || $client; then
 269   if $dev2; then
 270     uset network.lan.gateway $l.1
 271     uset network.wan.proto none
 272     uset network.wan6.proto none
 273   fi
 274   /etc/init.d/dnsmasq stop
 275   /etc/init.d/dnsmasq disable
 276   /etc/init.d/odhcpd stop
 277   /etc/init.d/odhcpd disable
 278   rm -f /etc/resolv.conf
 279   cat >/etc/resolv.conf <<'EOF'
 280 nameserver 8.8.8.8
 281 nameserver 8.8.4.4
 282 EOF
 283
 284   # things i tried to keep dnsmasq running but not enabled except local dns,
 285   # but it didnt work right and i dont need it anyways.
 286   # uset dhcp.wan.ignore $dev2 # default is false
 287   # uset dhcp.lan.ignore $dev2 # default is false
 288   # uset dhcp.@dnsmasq[0].interface lo
 289   # uset dhcp.@dnsmasq[0].localuse 0
 290   # uset dhcp.@dnsmasq[0].resolvfile /etc/dnsmasq.conf
 291   # uset dhcp.@dnsmasq[0].noresolv 1
 292   # todo: populate /etc/resolv.conf with a static value
 293
 294 else
 295   # these are the defaults
 296   uset network.lan.gateway ''
 297   uset network.wan.proto dhcp
 298   uset network.wan6.proto dhcpv6
 299   /etc/init.d/dnsmasq start
 300   # todo: figure out why this returns 1
 301   /etc/init.d/dnsmasq enable ||:
 302   /etc/init.d/odhcpd start
 303   /etc/init.d/odhcpd enable
 304 fi
 305
 306 wireless_restart=false
 307
 308 if $client; then
 309   uset wireless.default_radio0.network 'wwan'
 310   uset wireless.default_radio0.ssid ${rclientssid[$rmac]}
 311   uset wireless.default_radio0.encryption 'psk2'
 312   uset wireless.default_radio0.device 'radio0'
 313   uset wireless.default_radio0.mode 'sta'
 314   uset wireless.default_radio0.bssid ${rclientbssid[$rmac]}
 315   # todo: look into whether 5g network is available.
 316   uset wireless.default_radio0.key ${rclientkey[$rmac]}
 317   uset wireless.radio0.disabled false
 318   uset wireless.radio1.disabled true
 319 else
 320   for x in 0 1; do
 321     uset wireless.default_radio$x.ssid "$ssid"
 322     uset wireless.default_radio$x.key $key
 323     uset wireless.default_radio$x.encryption psk2
 324     if [[ $mac ]]; then
 325       uset wireless.default_radio$x.macaddr $macpre$((macsuf + 2*x))
 326     fi
 327     # secondary device has wireless disabled
 328     uset wireless.radio$x.disabled $dev2
 329   done
 330 fi
 331
 332
 333
 334
 335
 336 # usb, screen, relay are for libremanage
 337 # rsync is for brc
 338 #
 339 # relay package temporarily disabled
 340 # /root/relay_1.0-1_mips_24kc.ipk
 341 v pi kmod-usb-storage block-mount kmod-fs-ext4 nfs-kernel-server \
 342   tcpdump openvpn-openssl adblock libusb-compat \
 343   screen kmod-usb-serial-cp210x kmod-usb-serial-ftdi rsync
 344
 345 cat >/etc/libremanage.conf <<EOF
 346 ${libremanage_host}_type=switch
 347 ${libremanage_host}_channel=1
 348 EOF
 349
 350
 351
 352 v /etc/init.d/fstab enable ||:
 353
 354 # rebooting makes mounting work, but comparing lsmod,
 355 # i'm guessing this will too. todo, test it.
 356 # 255 == module already loaded
 357 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
 358
 359 # for archlike pxe. The default settings in the installer expect to find
 360 # the NFS at one of these dirs
 361 mkdir -p /run/archiso/bootmnt
 362 mkdir -p /run/parabolaiso/bootmnt
 363
 364 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
 365 # that is the case after running this or rebooting.
 366 # wiki says safe to do in case of fstab changes:
 367
 368 ## ian: usb broke on old router. if that happens, can just comment this to disable problems
 369 # echo | cedit /etc/config/fstab ||:
 370 v cedit /etc/config/fstab <<EOF || { v block umount; v block mount; }
 371 config global automount
 372       option from_fstab 1
 373       option anon_mount 1
 374
 375 config mount
 376 # /overlay is an / overlay mount for installing extra packages, etc.
 377 # https://openwrt.org/docs/guide-user/additional-software/extroot_configuration
 378       option target     /mnt/usb
 379 #      option target    /overlay
 380       option device     /dev/sda1
 381       option fstype     ext4
 382       option options    rw,async,noatime,nodiratime
 383       option enabled    0
 384 EOF
 385
 386
 387 # ian: disabled because afaik I don't need it, no benefit.
 388 # config global autoswap
 389 #       option from_fstab 1
 390 #       option anon_swap 1
 391
 392 # config swap
 393 #       option device   /dev/sda1
 394 #       option enabled  1
 395
 396
 397
 398
 399 # exportfs -ra wont cut it when its the same path, but now a bind mount
 400 # todo: restart nfs when nfs is enabled?
 401 #cedit /etc/exports <<EOF || v /etc/init.d/nfsd restart ||:
 402 cedit /etc/exports <<EOF ||:
 403 /mnt/usb  $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 404 # for arch pxe
 405 /run/archiso/bootmnt    $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 406 /run/parabolaiso/bootmnt        $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 407 EOF
 408
 409
 410 # todo: enable nfs when we need it only.
 411 # v /etc/init.d/portmap start
 412 # v /etc/init.d/nfsd start
 413 # v /etc/init.d/portmap enable
 414 # v /etc/init.d/nfsd enable
 415
 416
 417
 418
 419
 420
 421
 422
 423 ########## openvpn exampl
 424 ########## missing firewall settings for routing lan
 425 ########## traffic
 426 # v /etc/init.d/openvpn start
 427 # v /etc/init.d/openvpn enable
 428
 429 # # from https://wiki.openwrt.org/doc/uci/firewall
 430 # # todo: not sure if /etc/init.d/network needs restarting.
 431 # # I did, and I had to restart the vpn afterwards.
 432 # # This maps a uci interface to a real interface which is
 433 # # managed outside of uci.
 434 # v cedit /etc/config/network <<'EOF' ||:
 435 # config interface 'tun0'
 436 #         option ifname 'tun0'
 437 #         option proto 'none'
 438 # EOF
 439 # v cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 440 # config openvpn my_client_config
 441 #         option enabled 1
 442 #         option config /etc/openvpn/client.conf
 443 # EOF
 444
 445 wgip4=10.3.0.1/24
 446 wgip6=fdfd::1/64
 447 wgport=26000
 448
 449 network_restart=false
 450 if $client; then
 451   v cedit wific /etc/config/network <<EOF || network_restart=true
 452 # https://openwrt.org/docs/guide-user/network/wifi/connect_client_wifi
 453 config interface 'wwan'
 454  option proto 'dhcp'
 455 EOF
 456 fi
 457
 458 v cedit /etc/config/network <<EOF || network_restart=true
 459 config 'route' 'transmission'
 460  option 'interface' 'lan'
 461  option 'target' '10.173.0.0'
 462  option 'netmask' '255.255.0.0'
 463  option 'gateway' '$l.3'
 464
 465 option interface 'wg0'
 466  option proto 'wireguard'
 467  option private_key '$(cat /root/wg.key)'
 468  option listen_port $wgport
 469  list addresses '10.3.0.1/24'
 470  list addresses 'fdfd::1/64'
 471
 472 # tp
 473 config wireguard_wg0 'wgclient'
 474  option public_key '3q+WJGrm85r59NgeXOIvppxoW4ux/+koSw6Fee1c1TI='
 475  option preshared_key '$(cat /root/wg.psk)'
 476  list allowed_ips '10.3.0.2/24'
 477  list allowed_ips 'fdfd::2/64'
 478 EOF
 479
 480 if $network_restart; then
 481   v /etc/init.d/network reload
 482 fi
 483
 484 firewall-cedit() {
 485
 486   if $client; then
 487     v cedit wific /etc/config/firewall <<EOF
 488 config zone
 489  option name    wwan
 490  option input    REJECT
 491  option output   ACCEPT
 492  option forward  REJECT
 493  option masq     1
 494  option mtu_fix  1
 495  option network  wwan
 496 EOF
 497   fi
 498
 499   case $hostname in
 500     wrt)
 501       v cedit host /etc/config/firewall <<EOF
 502 config redirect
 503  option name ssh
 504  option src              wan
 505  option src_dport        22
 506  option dest_ip          $l.3
 507  option dest             lan
 508 EOF
 509       ;;
 510     cmc)
 511       v cedit host /etc/config/firewall <<EOF
 512 config redirect
 513  option name ssh
 514  option src              wan
 515  option src_dport        22
 516  option dest_ip          $l.2
 517  option dest             lan
 518 EOF
 519       ;;
 520   esac
 521
 522   v cedit /etc/config/firewall <<EOF
 523 config rule
 524  option src              wan
 525  option target           ACCEPT
 526  option dest_port        22
 527
 528 config redirect
 529  option name sshtp
 530  option src              wan
 531  option src_dport        2202
 532  option dest_port        22
 533  option dest_ip          $l.2
 534  option dest             lan
 535 config rule
 536  option src              wan
 537  option target           ACCEPT
 538  option dest_port        2202
 539
 540 config redirect
 541  option name sshx2
 542  option src              wan
 543  option src_dport        2205
 544  option dest_port        22
 545  option dest_ip          $l.5
 546  option dest             lan
 547 config rule
 548  option src              wan
 549  option target           ACCEPT
 550  option dest_port        2205
 551
 552 config redirect
 553  option name sshx3
 554  option src              wan
 555  option src_dport        2207
 556  option dest_port        22
 557  option dest_ip          $l.7
 558  option dest             lan
 559 config rule
 560  option src              wan
 561  option target           ACCEPT
 562  option dest_port        2207
 563
 564 config redirect
 565  option name sshtp
 566  option src              wan
 567  option src_dport        2208
 568  option dest_port        22
 569  option dest_ip          $l.8
 570  option dest             lan
 571 config rule
 572  option src              wan
 573  option target           ACCEPT
 574  option dest_port        2208
 575
 576 config redirect
 577  option name sshbb8
 578  option src              wan
 579  option src_dport        2209
 580  option dest_port        22
 581  option dest_ip          $l.9
 582  option dest             lan
 583 config rule
 584  option src              wan
 585  option target           ACCEPT
 586  option dest_port        2209
 587
 588 config redirect
 589  option name icecast
 590  option src              wan
 591  option src_dport        8000
 592  option dest_port        8000
 593  option dest_ip          $l.2
 594  option dest             lan
 595 config rule
 596  option src              wan
 597  option target           ACCEPT
 598  option dest_port        8000
 599
 600 config rule
 601  option name sshwrt
 602  option src              wan
 603  option target           ACCEPT
 604  option dest_port        2220
 605
 606 config rule
 607  option name wg
 608  option src              wan
 609  option target           ACCEPT
 610  option dest_port        $wgport
 611  option proto            udp
 612
 613
 614 config redirect
 615  option name httpkd
 616  option src              wan
 617  option src_dport        80
 618  option dest             lan
 619  option dest_ip          $l.2
 620  option proto            tcp
 621 config rule
 622  option src              wan
 623  option target           ACCEPT
 624  option dest_port        80
 625  option proto            tcp
 626
 627 config redirect
 628  option name httpskd
 629  option src              wan
 630  option src_dport        443
 631  option dest             lan
 632  option dest_ip          $l.2
 633  option proto            tcp
 634 config rule
 635  option src              wan
 636  option target           ACCEPT
 637  option dest_port        443
 638  option proto            tcp
 639
 640 config redirect
 641  option name syncthing
 642  option src              wan
 643  option src_dport        22001
 644  option dest_ip          $l.8
 645  option dest             lan
 646 config rule
 647  option src              wan
 648  option target           ACCEPT
 649  option dest_port        22001
 650
 651
 652 config rule
 653  option name ssh-ipv6
 654  option src wan
 655  option dest lan
 656  # note, using mac transform, we could allow all traffic to a host like this,
 657  # replacing 1 as appropriate
 658  #option dest_ip ::111:11ff:fe11:1111/::ffff:ffff:ffff:ffff
 659  option dest_port 22
 660  option target ACCEPT
 661  option family ipv6
 662
 663 config rule
 664  option name http-ipv6
 665  option src wan
 666  option dest lan
 667  option dest_port 80
 668  option target ACCEPT
 669  option family ipv6
 670
 671 config rule
 672  option name https-ipv6
 673  option src wan
 674  option dest lan
 675  option dest_port 443
 676  option target ACCEPT
 677  option family ipv6
 678
 679 config rule
 680  option name node-exporter
 681  option src wan
 682  option dest lan
 683  option dest_port 9101
 684  option target ACCEPT
 685  option family ipv6
 686
 687 config rule
 688  option name mail587-ipv6
 689  option src wan
 690  option dest lan
 691  option dest_port 587
 692  option target ACCEPT
 693  option family ipv6
 694
 695 EOF
 696 }
 697 firewall-cedit || firewall_restart=true
 698
 699 if ! uci get firewall.@zone[1].network | grep wg0 &>/dev/null; then
 700   # cant mix cedit plus uci
 701   echo | cedit /etc/config/firewall ||:
 702   uci add_list firewall.@zone[1].network=wg0
 703   uci commit firewall
 704   firewall-cedit ||:
 705   firewall_restart=true
 706 fi
 707
 708
 709
 710 v cedit /etc/hosts <<EOF || dnsmasq_restart=true
 711 127.0.1.1 $hostname
 712 #$l.7 x3
 713 $l.12 demohost
 714 $l.13 trp
 715 72.14.176.105 li
 716 2600:3c00::f03c:91ff:fe6d:baf8 li
 717
 718 # netns creation looks for next free subnet starting at 10.173, but I only
 719 # use one, and I would keep this one as the first created.
 720 10.173.0.2 transmission
 721 EOF
 722 case $hostname in
 723   cmc)
 724     v cedit host /etc/hosts <<EOF || dnsmasq_restart=true
 725 $l.1 $hostname
 726 $l.2 kd b8.nz faiserver
 727 #$l.3 frodo
 728 $l.4 wrt2
 729 $l.5 x2
 730 $l.6 x2w
 731 $l.7 rp
 732 $l.8 tp
 733 $l.9 bb8
 734 $l.14 wrt3
 735 #$l.18 x3
 736 $l.19 brother
 737 $l.25 hp
 738 #$l.28 frodow
 739 EOF
 740     ;;
 741 esac
 742
 743
 744 #mail_host=$(grep -F mail.iankelling.org /etc/hosts | awk '{print $1}')
 745 # if [[ $mail_host ]]; then
 746 #     sed -i '/^$mail_host/a mail.iankelling.org' /etc/hosts
 747 # fi
 748
 749
 750 uset dhcp.@dnsmasq[0].domain b8.nz
 751 uset dhcp.@dnsmasq[0].local /b8.nz/
 752 uset system.@system[0].hostname $hostname
 753 # uci doesnt seem to have a way to set an empty value,
 754 # if you delete it, it goes back to the default. this seems
 755 # to be a decent workaround.
 756 # todo: setup /etc/resolv.conf to point to 127.0.0.1
 757 uset dhcp.@dnsmasq[0].resolvfile=/dev/null
 758
 759 # disabled for now. i want to selectively enable it
 760 # for specific hosts.
 761 if [[ $(uci get adblock.global.adb_enabled) != 0 ]]; then
 762   v uci set adblock.global.adb_enabled=0
 763   uci commit adblock
 764   /etc/init.d/adblock restart
 765 fi
 766 # https://github.com/openwrt/packages/tree/master/net/adblock/files
 767 cat >/etc/crontabs/root <<'EOF'
 768 0 06 * * *    /etc/init.d/adblock reload
 769 EOF
 770
 771
 772 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
 773
 774 # sometimes /mnt/usb fails, cuz it's just a flash drive,
 775 # so make sure we have this dir or else dnsmasq will fail
 776 # to start.
 777 mkdir -p /mnt/usb/tftpboot
 778 v cedit /etc/dnsmasq.conf <<EOF || dnsmasq_restart=true
 779 server=/dmarctest.b8.nz/#
 780 server=/_domainkey.b8.nz/#
 781 server=/_dmarc.b8.nz/#
 782 server=/ns1.b8.nz/#
 783 server=/ns2.b8.nz/#
 784 server=/bk.b8.nz/#
 785 server=/je.b8.nz/#
 786 mx-host=b8.nz,mail.iankelling.org,10
 787 txt-record=b8.nz,"v=spf1 a ?all"
 788
 789
 790 # https://ret2got.wordpress.com/2018/01/19/how-your-ethereum-can-be-stolen-using-dns-rebinding/
 791 stop-dns-rebind
 792
 793 # this says the ip of default gateway and dns server,
 794 # but I think they are unneded and default
 795 #dhcp-option=3,$l.1
 796 #dhcp-option=6,$l.1
 797
 798
 799
 800 # results from googling around dnsmasq optimizations
 801 # about 50k in memory. router has 62 megs.
 802 # in a browsing session, I probably won't ever do 5000 lookups
 803 # before the ttl expiration or whatever does expiration.
 804 cache-size=10000
 805
 806 # ask all servers, use the one which responds first.
 807 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
 808 all-servers
 809
 810 # namebench benchmarks dns servers. google's dns was only
 811 # slightly less fast than some others, and I trust it more
 812 # to give accurate results, stay relatively fast, and
 813 # not do anythin too malicious, so just use that.
 814 # download namebench and run it like this:
 815 # for x in all regional isp global preferred nearby; do ./namebench.py -s \$x -c US -i firefox -m weighted -J 10 -w; echo \$x; hr;  done
 816 # google
 817 server=8.8.4.4
 818 server=8.8.8.8
 819 server=2001:4860:4860::8888
 820 server=2001:4860:4860::8844
 821
 822
 823 # to fixup existin ips, on the client you can do
 824 # sudo dhclient -r; sudo dhclient <interface-name>
 825
 826 # default dhcp range is 100-150
 827 # bottom port,  iPXE (PCI 03:00.0) in seabios boot menu
 828 dhcp-host=c8:60:00:31:6b:75,set:kd,$l.2,kd
 829 # top port, iPXE (PCI 04:00.0) in seabios boot menu
 830 #dhcp-host=c8:60:00:2b:15:07,set:kd,$l.2,kd
 831 dhcp-host=00:26:18:97:bb:16,set:frodo,$l.3,frodo
 832 # 4 is reserved for a staticly configured host wrt2
 833 # old x2 with bad fan
 834 #dhcp-host=00:1f:16:16:39:24,set:x2,$l.5,x2
 835 dhcp-host=f0:de:f1:81:ec:88,set:x2,$l.5,x2
 836 dhcp-host=c4:8e:8f:44:f5:63,set:x2w,$l.6,x2w
 837 # This is so fai can have an explicit name to use for testing,
 838 # or else any random machine which did a pxe boot would get
 839 # reformatted. The mac is from doing a virt-install, cancelling it,
 840 # and copying the generated mac, so it should be randomish.
 841 dhcp-host=fa:08:f8:4c:14:1c,set:tp,$l.7,rp
 842 dhcp-host=80:fa:5b:1c:6e:cf,set:tp,$l.8,tp
 843 dhcp-host=52:54:00:9c:ef:ad,set:demohost,$l.12,demohost
 844 dhcp-host=62:03:cb:a8:3e:a3,set:trp,$1.13,trp
 845 dhcp-host=00:1f:16:14:01:d8,set:tp,$l.18,x3
 846 # BRN001BA98CA823 in dhcp logs
 847 dhcp-host=00:1b:a9:8c:a8:23,set:tp,$l.19,brother
 848 dhcp-host=38:63:bb:07:5a:f9,set:tp,$l.25,hp
 849 dhcp-host=00:26:b6:f6:0f:e9,set:frodow,$l.28,frodow
 850
 851
 852 # faiserver vm
 853 dhcp-host=52:54:00:56:09:f9,set:faiserver,$l.15,faiserver
 854
 855 # This is the ip it picks by default if dhcp fails,
 856 # so might as well use it.
 857 # hostname is the name it uses according to telnet
 858 dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,$l.251,switch9429ca
 859
 860 # template
 861 # dhcp-host=,$l.,
 862
 863 # Just leave the tftp server up even if we aren't doing pxe boot.
 864 # It has no sensitive info.
 865 enable-tftp=br-lan
 866 tftp-root=/mnt/usb/tftpboot
 867 dhcp-optsfile=/etc/dnsmasq-dhcpopts.conf
 868
 869 #log-queries=extra
 870 EOF
 871
 872
 873 if $dnsmasq_restart && ! $dev2; then
 874   v /etc/init.d/dnsmasq restart
 875 fi
 876
 877 if $firewall_restart; then
 878   v /etc/init.d/firewall restart
 879 fi
 880
 881 # this may just restart the network and take care of the network_restart below.
 882 if $wireless_restart; then
 883   v wifi
 884 fi
 885
 886 # todo: we should catch errors and still run this if needed
 887 if $network_restart; then
 888   reboot
 889 fi
 890
 891 exit 0