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] [hostname]
  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 zblock=false
  43 if [[ -e /root/zblock ]]; then
  44   zblock=true
  45 fi
  46
  47 dnsmasq_restart=false
  48 unbound_restart=false
  49 firewall_restart=false
  50 dev2=false
  51 test=false
  52 client=false
  53 libremanage_host=wrt2
  54 lanip=1
  55 while getopts hm:t:yz opt; do
  56   case $opt in
  57     h) usage ;;
  58     t)
  59       case $2 in
  60         2|3)
  61           dev2=true
  62           libremanage_host=$hostname
  63           ;;&
  64         2)
  65           lanip=4
  66           hostname=wrt2
  67           ;;
  68         3)
  69           lanip=14
  70           hostname=wrt3
  71           ;;
  72         test)
  73           test=true
  74           ;;
  75         client)
  76           client=true
  77           ;;
  78         *) echo "$0: unexpected arg to -t: $*" >&2; usage 1 ;;
  79       esac
  80       ;;
  81     y)
  82       zblock=false
  83       rm -f /root/zblock
  84       ;;
  85     z)
  86       zblock=true
  87       touch /root/zblock
  88       ;;
  89     m)  mac=$OPTARG ;;
  90     *) echo "$0: Internal error! unexpected args: $*" >&2 ; usage 1 ;;
  91   esac
  92 done
  93 shift "$((OPTIND-1))"   # Discard the options and sentinel --
  94
  95 if [[ $1 ]]; then
  96   h=$1
  97   hostname=$h
  98 else
  99   h=cmc
 100   hostname=$h
 101 fi
 102
 103 secrets=false
 104 if [[ -e /root/router-secrets ]]; then
 105   secrets=true
 106   source /root/router-secrets
 107 fi
 108
 109 if [[ ! $mac ]] && ! $test && $secrets; then
 110   # if we wanted to increment it
 111   #mac=${mac:0: -1}$((${mac: -1} + 2))
 112   mac=${rwmac[$h]}
 113 fi
 114
 115 if (( $# != 0 )); then
 116   usage 1
 117 fi
 118
 119
 120 macpre=${mac:0: -1}
 121 macsuf=${mac: -1}
 122
 123
 124 p_updated=false
 125 pmirror() {
 126   if $p_updated; then
 127     return
 128   fi
 129   # background: upgrading all packages is not recommended because it
 130   # doesn't go into the firmware. build new firmware if you want
 131   # lots of upgrades. I think /tmp/opkg-lists is a pre openwrt 14 location.
 132   f=(/var/opkg-lists/*)
 133   if ! (( $(date -r $f +%s) + 60*60*24 > $(date +%s) )); then
 134     if ! opkg update; then
 135       echo "$0: warning: opkg update failed" >&2
 136     fi
 137     p_updated=true
 138   fi
 139 }
 140
 141 pi() {
 142   to_install=()
 143   for p in "$@"; do
 144     pname=${p##*/}
 145     pname=${pname%%_*}
 146     if [[ ! $(opkg list-installed "$pname") ]]; then
 147       to_install+=($p)
 148       pmirror
 149     fi
 150   done
 151   if [[ $to_install ]]; then
 152     opkg install ${to_install[@]}
 153   fi
 154 }
 155
 156 v() {
 157   printf "+ %s\n" "$*"
 158   "$@"
 159 }
 160
 161 ######### uci example:#######
 162 # # https://wiki.openwrt.org/doc/uci
 163 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
 164 # wan="firewall.@zone[$wan_index]"
 165 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
 166 #     # default is wan
 167 #     v uci set firewall.@forwarding[0].dest=$forward_dest
 168 #     uci commit firewall
 169 #     firewall_restart=true
 170 # fi
 171 ####### end uci example #####
 172
 173 uset() {
 174   printf "+ uset %s\n" "$*"
 175   local key="$1"
 176   local val="$2"
 177   local service="${key%%.*}"
 178   restart_var=${service}_restart
 179   if [[ ! ${!restart_var} ]]; then
 180     eval $restart_var=false
 181   fi
 182   if [[ $(uci get "$key") != "$val" ]]; then
 183     v uci set "$key"="$val"
 184     uci commit $service
 185     eval $restart_var=true
 186   fi
 187 }
 188
 189 udel() {
 190   printf "+ udel %s\n" "$*"
 191   local key="$1"
 192   local val="$2"
 193   local service="${key%%.*}"
 194   restart_var=${service}_restart
 195   if [[ ! ${!restart_var} ]]; then
 196     eval $restart_var=false
 197   fi
 198   if uci get "$key" &>/dev/null; then
 199     v uci set "$key"="$val"
 200     uci commit $service
 201     eval $restart_var=true
 202   fi
 203 }
 204 cedit() {
 205   v command cedit -v "$@"
 206 }
 207
 208
 209 ### network config
 210 ###
 211 lan=10.0.0.0
 212 if $test; then
 213   lan=10.1.0.0
 214 elif [[ $hostname == cmc ]]; then
 215   lan=10.2.0.0
 216 elif $client; then
 217   lan=10.3.0.0
 218 fi
 219
 220 if $test; then
 221   ssid="gnuv3"
 222 elif $secrets; then
 223   ssid=${rssid[$h]}
 224 fi
 225
 226 : ${ssid:=librecmc}
 227
 228
 229 if $secrets; then
 230   key=${rkey[$h]}
 231 fi
 232 : ${key:=pictionary49}
 233
 234 mask=255.255.0.0
 235 cidr=16
 236 l=${lan%.0}
 237
 238 passwd -l root ||: #already locked fails
 239
 240 sed -ibak '/^root:/d' /etc/shadow
 241 # /root/router created by manually running passwd then copying the resulting
 242 # line. We have no mkpasswd on wrt/librecmc, then we scp it in.
 243 cat /root/router >>/etc/shadow
 244 # otherwise, serial console gets root login with no password
 245 uset system.@system[0].ttylogin 1
 246
 247
 248
 249 cat >/usr/bin/archlike-pxe-mount <<'EOFOUTER'
 250 #!/bin/bash
 251 # symlinks are collapsed for nfs mount points, so use a bind mount.
 252 # tried putting this in /etc/config/fstab,
 253 # then doing block mount, it didn't work. This doesn't persist across reboots,
 254 # todo: figure that out
 255 rm -f /etc/fstab
 256 for d in /run/{arch,parabola}iso/bootmnt; do
 257 cat >>/etc/fstab <<EOF
 258 /mnt/usb/tftpboot $d none bind 0 0
 259 EOF
 260 mount | grep $d &>/dev/null || mount $d
 261 done
 262 /etc/init.d/nfsd restart
 263 EOFOUTER
 264 chmod +x /usr/bin/archlike-pxe-mount
 265
 266 sed -i '/^root:/s,/bin/ash$,/bin/bash,' /etc/passwd
 267
 268
 269
 270 uset dropbear.@dropbear[0].PasswordAuth 0
 271 uset dropbear.@dropbear[0].RootPasswordAuth 0
 272 uset dropbear.@dropbear[0].Port 2220
 273 if ! cmp -s /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key; then
 274   cp /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key
 275   dropbear_restart=true
 276 fi
 277
 278 if $dropbear_restart; then
 279   v /etc/init.d/dropbear restart
 280 fi
 281
 282
 283 uset network.lan.ipaddr $l.$lanip
 284 uset network.lan.netmask $mask
 285 if $dev2  || $client; then
 286   if $dev2; then
 287     uset network.lan.gateway $l.1
 288     uset network.wan.proto none
 289     uset network.wan6.proto none
 290   fi
 291   /etc/init.d/dnsmasq stop
 292   /etc/init.d/dnsmasq disable
 293   /etc/init.d/odhcpd stop
 294   /etc/init.d/odhcpd disable
 295   rm -f /etc/resolv.conf
 296   cat >/etc/resolv.conf <<'EOF'
 297 nameserver 8.8.8.8
 298 nameserver 8.8.4.4
 299 EOF
 300
 301   # things i tried to keep dnsmasq running but not enabled except local dns,
 302   # but it didnt work right and i dont need it anyways.
 303   # uset dhcp.wan.ignore $dev2 # default is false
 304   # uset dhcp.lan.ignore $dev2 # default is false
 305   # uset dhcp.@dnsmasq[0].interface lo
 306   # uset dhcp.@dnsmasq[0].localuse 0
 307   # uset dhcp.@dnsmasq[0].resolvfile /etc/dnsmasq.conf
 308   # uset dhcp.@dnsmasq[0].noresolv 1
 309   # todo: populate /etc/resolv.conf with a static value
 310
 311 else
 312   # these are the defaults
 313
 314   # this is not needed unless switching from the above condition.
 315   # disabling just to debug
 316   #uset network.lan.gateway ''
 317
 318   uset network.wan.proto dhcp
 319   uset network.wan6.proto dhcpv6
 320   /etc/init.d/dnsmasq start
 321   # todo: figure out why this returns 1
 322   /etc/init.d/dnsmasq enable ||:
 323   /etc/init.d/odhcpd start
 324   /etc/init.d/odhcpd enable
 325 fi
 326
 327 wireless_restart=false
 328
 329 if $client; then
 330   uset wireless.default_radio0.network 'wwan'
 331   uset wireless.default_radio0.ssid ${rclientssid[$h]}
 332   uset wireless.default_radio0.encryption 'psk2'
 333   uset wireless.default_radio0.device 'radio0'
 334   uset wireless.default_radio0.mode 'sta'
 335   uset wireless.default_radio0.bssid ${rclientbssid[$h]}
 336   # todo: look into whether 5g network is available.
 337   uset wireless.default_radio0.key ${rclientkey[$h]}
 338   uset wireless.radio0.disabled false
 339   uset wireless.radio1.disabled true
 340 else
 341   # defaults, just reseting in case client config ran
 342   uset wireless.default_radio0.network lan
 343   uset wireless.default_radio0.mode ap
 344   for x in 0 1; do
 345     uset wireless.default_radio$x.ssid "$ssid"
 346     uset wireless.default_radio$x.key $key
 347     uset wireless.default_radio$x.encryption psk2
 348     if [[ $mac ]]; then
 349       uset wireless.default_radio$x.macaddr $macpre$((macsuf + 2*x))
 350     fi
 351     # secondary device has wireless disabled
 352     uset wireless.radio$x.disabled $dev2
 353   done
 354 fi
 355
 356 if grep '^OPENWRT_BOARD="mvebu/cortexa9"' /etc/os-release &>/dev/null; then
 357   # todo, I also enabled irqbalance, didnt script it though
 358   # https://forum.openwrt.org/t/wrt1900acs-wifi-issue-after-upgrade-from-19-07-to-21-02-vacuum-cleaner-legacy-rate-support/113311/28
 359   cat >/etc/rc.local <<'EOF'
 360 echo "0" >> /sys/kernel/debug/ieee80211/phy0/mwlwifi/tx_amsdu
 361 echo "0" >> /sys/kernel/debug/ieee80211/phy1/mwlwifi/tx_amsdu
 362 exit 0
 363 EOF
 364   chmod +x /etc/rc.local
 365   /etc/rc.local
 366   uset wireless.radio0.disassoc_low_ack 0
 367   uset wireless.radio1.disassoc_low_ack 0
 368 fi
 369 case $HOSTNAME in
 370   cmc)
 371     # found with https://openwrt.org/docs/guide-user/network/wifi/iwchan
 372     uset wireless.radio0.channel 11
 373     ;;
 374 esac
 375
 376
 377 # usb, screen, relay are for libremanage
 378 # rsync is for brc
 379 #
 380 # relay package temporarily disabled
 381 # /root/relay_1.0-1_mips_24kc.ipk
 382 v pi tcpdump screen rsync unbound-daemon unbound-checkconf \
 383   kmod-usb-storage block-mount kmod-fs-ext4
 384 # nfs-kernel-server \
 385   #   openvpn-openssl adblock libusb-compat \
 386   #   kmod-usb-serial-cp210x kmod-usb-serial-ftdi \
 387
 388
 389 cat >/etc/libremanage.conf <<EOF
 390 ${libremanage_host}_type=switch
 391 ${libremanage_host}_channel=1
 392 EOF
 393
 394
 395
 396 v /etc/init.d/fstab enable ||:
 397
 398 # rebooting makes mounting work, but comparing lsmod,
 399 # i'm guessing this will too. todo, test it.
 400 # 255 == module already loaded
 401 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
 402
 403 # for archlike pxe. The default settings in the installer expect to find
 404 # the NFS at one of these dirs
 405 mkdir -p /run/archiso/bootmnt
 406 mkdir -p /run/parabolaiso/bootmnt
 407
 408 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
 409 # that is the case after running this or rebooting.
 410 # wiki says safe to do in case of fstab changes:
 411
 412 ## ian: usb broke on old router. if that happens, can just comment this to disable problems
 413 # echo | cedit /etc/config/fstab ||:
 414 cedit /etc/config/fstab <<EOF || { v block umount; v block mount; }
 415 config global automount
 416       option from_fstab 1
 417       option anon_mount 1
 418
 419 config mount
 420 # /overlay is an / overlay mount for installing extra packages, etc.
 421 # https://openwrt.org/docs/guide-user/additional-software/extroot_configuration
 422       option target     /mnt/usb
 423 #      option target    /overlay
 424       option device     /dev/sda1
 425       option fstype     ext4
 426       option options    rw,async,noatime,nodiratime
 427       option enabled    0
 428 EOF
 429
 430
 431 # ian: disabled because afaik I don't need it, no benefit.
 432 # config global autoswap
 433 #       option from_fstab 1
 434 #       option anon_swap 1
 435
 436 # config swap
 437 #       option device   /dev/sda1
 438 #       option enabled  1
 439
 440
 441
 442
 443 # exportfs -ra wont cut it when its the same path, but now a bind mount
 444 # todo: restart nfs when nfs is enabled?
 445 #cedit /etc/exports <<EOF || v /etc/init.d/nfsd restart ||:
 446 cedit /etc/exports <<EOF ||:
 447 /mnt/usb  $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 448 # for arch pxe
 449 /run/archiso/bootmnt    $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 450 /run/parabolaiso/bootmnt        $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 451 EOF
 452
 453
 454 # todo: enable nfs when we need it only.
 455 # v /etc/init.d/portmap start
 456 # v /etc/init.d/nfsd start
 457 # v /etc/init.d/portmap enable
 458 # v /etc/init.d/nfsd enable
 459
 460
 461
 462
 463
 464
 465
 466
 467 ########## openvpn exampl
 468 ########## missing firewall settings for routing lan
 469 ########## traffic
 470 # v /etc/init.d/openvpn start
 471 # v /etc/init.d/openvpn enable
 472
 473 # # from https://wiki.openwrt.org/doc/uci/firewall
 474 # # todo: not sure if /etc/init.d/network needs restarting.
 475 # # I did, and I had to restart the vpn afterwards.
 476 # # This maps a uci interface to a real interface which is
 477 # # managed outside of uci.
 478 # cedit /etc/config/network <<'EOF' ||:
 479 # config interface 'tun0'
 480 #         option ifname 'tun0'
 481 #         option proto 'none'
 482 # EOF
 483 # cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 484 # config openvpn my_client_config
 485 #         option enabled 1
 486 #         option config /etc/openvpn/client.conf
 487 # EOF
 488
 489 wgip4=10.3.0.1/24
 490 wgip6=fdfd::1/64
 491 wgport=26000
 492
 493 network_restart=false
 494 if $client; then
 495   cedit wific /etc/config/network <<EOF || network_restart=true
 496 # https://openwrt.org/docs/guide-user/network/wifi/connect_client_wifi
 497 config interface 'wwan'
 498  option proto 'dhcp'
 499 EOF
 500 fi
 501
 502 cedit /etc/config/network <<EOF || network_restart=true
 503 config 'route' 'transmission'
 504  option 'interface' 'lan'
 505  option 'target' '10.173.0.0'
 506  option 'netmask' '255.255.0.0'
 507  option 'gateway' '$l.3'
 508
 509 option interface 'wg0'
 510  option proto 'wireguard'
 511  option private_key '$(cat /root/wg.key)'
 512  option listen_port $wgport
 513  list addresses '10.3.0.1/24'
 514  list addresses 'fdfd::1/64'
 515
 516 # tp
 517 config wireguard_wg0 'wgclient'
 518  option public_key '3q+WJGrm85r59NgeXOIvppxoW4ux/+koSw6Fee1c1TI='
 519  option preshared_key '$(cat /root/wg.psk)'
 520  list allowed_ips '10.3.0.2/24'
 521  list allowed_ips 'fdfd::2/64'
 522 EOF
 523
 524 # Need to reload before we change dnsmasq to give out
 525 # static ips in our new range.
 526 if $network_restart; then
 527   v /etc/init.d/network reload
 528 fi
 529
 530 firewall-cedit() {
 531
 532   if $client; then
 533     cedit wific /etc/config/firewall <<EOF
 534 config zone
 535  option name    wwan
 536  option input    REJECT
 537  option output   ACCEPT
 538  option forward  REJECT
 539  option masq     1
 540  option mtu_fix  1
 541  option network  wwan
 542 EOF
 543   fi
 544
 545   case $hostname in
 546     wrt)
 547       cedit host /etc/config/firewall <<EOF
 548 config redirect
 549  option name ssh
 550  option src              wan
 551  option src_dport        22
 552  option dest_ip          $l.3
 553  option dest             lan
 554 EOF
 555       ;;
 556     cmc)
 557       cedit host /etc/config/firewall <<EOF
 558 config redirect
 559  option name ssh
 560  option src              wan
 561  option src_dport        22
 562  option dest_ip          $l.2
 563  option dest             lan
 564 EOF
 565       ;;
 566   esac
 567
 568   cedit /etc/config/firewall <<EOF
 569 ## begin no external dns for ziva
 570 config rule
 571  option src  lan
 572  option src_ip   10.2.0.23
 573  option dest_port 53
 574  option dest  wan
 575  option target REJECT
 576
 577
 578 config rule
 579  option src wan
 580  option dest_ip   10.2.0.23
 581  option src_port 53
 582  option dest  lan
 583  option target REJECT
 584
 585
 586 config rule
 587  option src  lan
 588  option src_ip   10.2.0.31
 589  option dest_port 53
 590  option dest  wan
 591  option target REJECT
 592
 593
 594 config rule
 595  option src wan
 596  option dest_ip   10.2.0.31
 597  option src_port 53
 598  option dest  lan
 599  option target REJECT
 600
 601
 602 config rule
 603  option src  lan
 604  option src_ip   10.2.0.32
 605  option dest_port 53
 606  option dest  wan
 607  option target REJECT
 608
 609
 610 config rule
 611  option src wan
 612  option dest_ip   10.2.0.32
 613  option src_port 53
 614  option dest  lan
 615  option target REJECT
 616 ## end no external dns for ziva
 617
 618
 619 config rule
 620  option src              wan
 621  option target           ACCEPT
 622  option dest_port        22
 623
 624 config redirect
 625  option name sshkd
 626  option src              wan
 627  option src_dport        2202
 628  option dest_port        22
 629  option dest_ip          $l.2
 630  option dest             lan
 631 config rule
 632  option src              wan
 633  option target           ACCEPT
 634  option dest_port        2202
 635
 636
 637 config redirect
 638  option name sshkdalt
 639  option src              wan
 640  option src_dport        8989
 641  option dest_port        8989
 642  option dest_ip          $l.2
 643  option dest             lan
 644 config rule
 645  option src              wan
 646  option target           ACCEPT
 647  option dest_port        8989
 648
 649
 650 config redirect
 651  option name sshx2
 652  option src              wan
 653  option src_dport        2205
 654  option dest_port        22
 655  option dest_ip          $l.5
 656  option dest             lan
 657 config rule
 658  option src              wan
 659  option target           ACCEPT
 660  option dest_port        2205
 661
 662 config redirect
 663  option name sshx3
 664  option src              wan
 665  option src_dport        2207
 666  option dest_port        22
 667  option dest_ip          $l.7
 668  option dest             lan
 669 config rule
 670  option src              wan
 671  option target           ACCEPT
 672  option dest_port        2207
 673
 674 config redirect
 675  option name sshtp
 676  option src              wan
 677  option src_dport        2208
 678  option dest_port        22
 679  option dest_ip          $l.8
 680  option dest             lan
 681 config rule
 682  option src              wan
 683  option target           ACCEPT
 684  option dest_port        2208
 685
 686 config redirect
 687  option name sshbb8
 688  option src              wan
 689  option src_dport        2209
 690  option dest_port        22
 691  option dest_ip          $l.9
 692  option dest             lan
 693 config rule
 694  option src              wan
 695  option target           ACCEPT
 696  option dest_port        2209
 697
 698 config redirect
 699  option name icecast
 700  option src              wan
 701  option src_dport        8000
 702  option dest_port        8000
 703  option dest_ip          $l.2
 704  option dest             lan
 705 config rule
 706  option src              wan
 707  option target           ACCEPT
 708  option dest_port        8000
 709
 710 config rule
 711  option name sshwrt
 712  option src              wan
 713  option target           ACCEPT
 714  option dest_port        2220
 715
 716 config rule
 717  option name wg
 718  option src              wan
 719  option target           ACCEPT
 720  option dest_port        $wgport
 721  option proto            udp
 722
 723
 724 config redirect
 725  option name httpkd
 726  option src              wan
 727  option src_dport        80
 728  option dest             lan
 729  option dest_ip          $l.2
 730  option proto            tcp
 731 config rule
 732  option src              wan
 733  option target           ACCEPT
 734  option dest_port        80
 735  option proto            tcp
 736
 737 config redirect
 738  option name httpskd
 739  option src              wan
 740  option src_dport        443
 741  option dest             lan
 742  option dest_ip          $l.2
 743  option proto            tcp
 744 config rule
 745  option src              wan
 746  option target           ACCEPT
 747  option dest_port        443
 748  option proto            tcp
 749
 750 config redirect
 751 option name httpskd8448
 752  option src              wan
 753  option src_dport        8448
 754  option dest             lan
 755  option dest_ip          $l.2
 756  option proto            tcp
 757 config rule
 758  option src              wan
 759  option target           ACCEPT
 760  option dest_port        8448
 761  option proto            tcp
 762
 763 config redirect
 764  option name syncthing
 765  option src              wan
 766  option src_dport        22001
 767  option dest_ip          $l.8
 768  option dest             lan
 769 config rule
 770  option src              wan
 771  option target           ACCEPT
 772  option dest_port        22001
 773
 774
 775 #config redirect
 776 # option name i2p
 777 # option src              wan
 778 # option src_dport        $i2pport
 779 # option dest_ip          $l.178
 780 # option dest             lan
 781 #config rule
 782 # option src              wan
 783 # option target           ACCEPT
 784 # option dest_port        $i2pport
 785
 786 config rule
 787  option name ssh-ipv6
 788  option src wan
 789  option dest lan
 790  # note, using mac transform, we could allow all traffic to a host like this,
 791  # replacing 1 as appropriate
 792  #option dest_ip ::111:11ff:fe11:1111/::ffff:ffff:ffff:ffff
 793  option dest_port 22
 794  option target ACCEPT
 795  option family ipv6
 796
 797 config rule
 798  option name http-ipv6
 799  option src wan
 800  option dest lan
 801  option dest_port 80
 802  option target ACCEPT
 803  option family ipv6
 804
 805 config rule
 806  option name https-ipv6
 807  option src wan
 808  option dest lan
 809  option dest_port 443
 810  option target ACCEPT
 811  option family ipv6
 812
 813 config rule
 814  option name node-exporter
 815  option src wan
 816  option dest lan
 817  option dest_port 9101
 818  option target ACCEPT
 819  option family ipv6
 820
 821 config rule
 822  option name mail587-ipv6
 823  option src wan
 824  option dest lan
 825  option dest_port 587
 826  option target ACCEPT
 827  option family ipv6
 828
 829 # include a file with users custom iptables rules
 830 config include
 831         option path /etc/firewall.user
 832         option type 'restore'
 833         option family 'ipv4'
 834
 835
 836 EOF
 837 }
 838 firewall-cedit || firewall_restart=true
 839
 840 # not using wireguard for now
 841 # if ! uci get firewall.@zone[1].network | grep wg0 &>/dev/null; then
 842 #   # cant mix cedit plus uci
 843 #   echo | cedit /etc/config/firewall ||:
 844 #   uci add_list firewall.@zone[1].network=wg0
 845 #   uci commit firewall
 846 #   firewall-cedit ||:
 847 #   firewall_restart=true
 848 # fi
 849
 850
 851
 852 cedit /etc/hosts <<EOF ||:
 853 127.0.1.1 $hostname
 854 EOF
 855
 856
 857 #mail_host=$(grep -F mail.iankelling.org /etc/hosts | awk '{print $1}')
 858 # if [[ $mail_host ]]; then
 859 #     sed -i '/^$mail_host/a mail.iankelling.org' /etc/hosts
 860 # fi
 861
 862
 863 uset dhcp.@dnsmasq[0].domain b8.nz
 864 uset system.@system[0].hostname $hostname
 865 uset dhcp.@dnsmasq[0].local
 866
 867 # uci doesnt seem to have a way to set an empty value,
 868 # if you delete it, it goes back to the default. this seems
 869 # to be a decent workaround.
 870 # todo: setup /etc/resolv.conf to point to 127.0.0.1
 871 # later note: disabled, I dunno why I set this.
 872 # uset dhcp.@dnsmasq[0].resolvfile /dev/null
 873
 874 # if dnsmasq happens to not send out a dns server,
 875 # odhcpd will send one out like this:
 876 # NetworkManager[953]: <info>  [1614982580.5192] dhcp6 (wlan0): option dhcp6_name_servers   => 'fd58:5801:8e02::1'
 877 # but i dont want ipv6 dns, just keep it simple to ipv4.
 878 # I know my isp doesnt have ipv6 right now,
 879 # so just stop this thing.
 880 # note: tried this, it didn't do anything:
 881 # uset dhcp.@odhcpd[0].dns 10.2.0.1
 882
 883 # iank, disabled while debugging.
 884 #/etc/init.d/odhcpd stop
 885 #/etc/init.d/odhcpd disable
 886
 887 # todo: make the above conditional on which server this is.
 888
 889 # avoid errors in log. current isp doesnt have ipv6
 890 uset unbound.@unbound[0].protocol ip4_only
 891
 892 # todo: im not sure all these are needed, but they all look
 893 # like good options.
 894 # https://blog.cloudflare.com/dns-over-tls-for-openwrt/
 895 # https://gist.github.com/vqiu/7b32d3a19a7a09d32e108d998de166c2
 896 #https://blog.thestateofme.com/2018/04/04/howto-secure-your-dns-with-a-raspberry-pi-unbound-and-cloudflare-1-1-1-1/
 897 #
 898 # # i found that the zone example was having no effect on the config
 899 # # here:
 900 # https://github.com/openwrt/packages/blob/openwrt-19.07/net/unbound/files/README.md
 901 #
 902 # # todo: unbound-control, i'm not sure what the purpose of that thing is, some
 903 # # kind of coordination with dhcp of dnsmasq, but what?
 904 #
 905 # note: for debugging, edit /etc/init.d/unbound, change
 906 # procd_set_param command $PROG -d -c $UB_TOTAL_CONF
 907 # to:
 908 # procd_set_param command $PROG -vvv -d -c $UB_TOTAL_CONF
 909
 910 {
 911   cat <<'EOF'
 912 do-tcp: yes
 913 prefetch: yes
 914 qname-minimisation: yes
 915 rrset-roundrobin: yes
 916 use-caps-for-id: yes
 917 do-ip6: no
 918 private-domain: b8.nz
 919 local-zone: "10.in-addr.arpa." transparent
 920 access-control-view: 10.2.0.31/32 "youtube"
 921 EOF
 922
 923   if $zblock; then
 924     cat <<'EOF'
 925 # amy, amyw, samsungtab
 926 access-control-view: 10.2.0.8/32 "youtube"
 927 access-control-view: 10.2.0.23/32 "youtube"
 928 access-control-view: 10.2.0.32/32 "youtube"
 929 EOF
 930   fi
 931 } | cedit /etc/unbound/unbound_srv.conf  || restart_unbound=true
 932
 933
 934 # dns based blocking vs ip based. with ip, same
 935 # server can have multiple domains. in dns,
 936 # you have to make sure clients to use the local dns.
 937 # https dns will need to be blocked by ip in
 938 # order to be comprehensive
 939
 940 cedit /etc/unbound/unbound_ext.conf <<'EOF' || restart_unbound=true
 941 local-data-ptr: "10.2.0.1 cmc.b8.nz"
 942 local-data-ptr: "10.2.0.2 kd.b8.nz"
 943 local-data-ptr: "10.2.0.3 sy.b8.nz"
 944 local-data-ptr: "10.2.0.4 wrt2.b8.nz"
 945 local-data-ptr: "10.2.0.5 x2.b8.nz"
 946 local-data-ptr: "10.2.0.6 x2w.b8.nz"
 947 local-data-ptr: "10.2.0.7 syw.b8.nz"
 948 local-data-ptr: "10.2.0.8 amy.b8.nz"
 949 local-data-ptr: "10.2.0.9 bb8.b8.nz"
 950 local-data-ptr: "10.2.0.12 demohost.b8.nz"
 951 local-data-ptr: "10.2.0.14 wrt3.b8.nz"
 952 local-data-ptr: "10.2.0.19 brother.b8.nz"
 953 local-data-ptr: "10.2.0.23 amyw.b8.nz"
 954 local-data-ptr: "10.2.0.25 hp.b8.nz"
 955 local-data-ptr: "10.2.0.31 amazontab.b8.nz"
 956 local-data-ptr: "10.2.0.32 samsungtab.b8.nz"
 957 local-data-ptr: "10.173.0.2 transmission.b8.nz"
 958 local-data-ptr: "10.173.8.1 defaultnn.b8.nz"
 959 local-data-ptr: "10.173.8.2 nn.b8.nz"
 960
 961 forward-zone:
 962   name: "."
 963 # https://developers.cloudflare.com/1.1.1.1/1.1.1.1-for-families/setup-instructions/dns-over-https
 964   forward-addr: 1.1.1.3@853#family.cloudflare-dns.com
 965   forward-addr: 1.0.0.3@853#family.cloudflare-dns.com
 966   forward-ssl-upstream: yes
 967   forward-first: no
 968
 969 view:
 970   name: "youtube"
 971   local-zone: "googlevideo.com." refuse
 972   local-zone: "video.google.com." refuse
 973   local-zone: "youtu.be." refuse
 974   local-zone: "youtube-nocookie.com." refuse
 975   local-zone: "youtube-ui.l.google.com." refuse
 976   local-zone: "youtube.com." refuse
 977   local-zone: "youtube.googleapis.com." refuse
 978   local-zone: "youtubeeducation.com." refuse
 979   local-zone: "youtubei.googleapis.com." refuse
 980   local-zone: "yt3.ggpht.com." refuse
 981   local-zone: "youtubekids.com." refuse
 982   # try global if no match in view
 983   view-first: yes
 984 EOF
 985
 986
 987 if $restart_unbound; then
 988   /etc/init.d/unbound restart
 989   if ! unbound-checkconf; then
 990     echo $0: error: unbound-checkconf failed >&2
 991     exit 1
 992   fi
 993 fi
 994
 995
 996 # # disabled for now. i want to selectively enable it
 997 # # for specific hosts.
 998 # if [[ $(uci get adblock.global.adb_enabled) != 0 ]]; then
 999 #   v uci set adblock.global.adb_enabled=0
1000 #   uci commit adblock
1001 #   /etc/init.d/adblock restart
1002 # fi
1003 # # https://github.com/openwrt/packages/tree/master/net/adblock/files
1004 # cat >/etc/crontabs/root <<'EOF'
1005 # 0 06 * * *    /etc/init.d/adblock reload
1006 # EOF
1007
1008
1009 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
1010
1011 # sometimes /mnt/usb fails, cuz it's just a flash drive,
1012 # so make sure we have this dir or else dnsmasq will fail
1013 # to start.
1014 mkdir -p /mnt/usb/tftpboot
1015 cedit /etc/dnsmasq.conf  <<EOF || dnsmasq_restart=true
1016 # no dns
1017 port=0
1018 server=/b8.nz/#
1019 ptr-record=1.0.2.10.in-addr.arpa.,cmc.b8.nz
1020
1021 # https://ret2got.wordpress.com/2018/01/19/how-your-ethereum-can-be-stolen-using-dns-rebinding/
1022 stop-dns-rebind
1023 rebind-domain-ok=b8.nz
1024
1025 # This says the ip of dns server.
1026 # It is default if dnsmasq is doing dns, otherwise, we have to specify it.
1027 # To see it in action, I ran this from a client machine:
1028 # sudo dhcpcd -o domain_name_servers -T
1029 dhcp-option=6,$l.1
1030
1031
1032
1033 # results from googling around dnsmasq optimizations
1034 # about 50k in memory. router has 62 megs.
1035 # in a browsing session, I probably won't ever do 5000 lookups
1036 # before the ttl expiration or whatever does expiration.
1037 cache-size=10000
1038
1039 # ask all servers, use the one which responds first.
1040 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
1041 all-servers
1042
1043 # namebench benchmarks dns servers. google's dns was only
1044 # slightly less fast than some others, and I trust it more
1045 # to give accurate results, stay relatively fast, and
1046 # not do anythin too malicious, so just use that.
1047 # download namebench and run it like this:
1048 # 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
1049 # google
1050 server=1.1.1.3
1051 server=1.0.0.3
1052 server=2606:4700:4700::1113
1053 server=2606:4700:4700::1003
1054
1055 server=10.2.0.1
1056 # server=8.8.4.4
1057 # server=8.8.8.8
1058 # server=2001:4860:4860::8888
1059 # server=2001:4860:4860::8844
1060
1061
1062 # to fixup existin ips, on the client you can do
1063 # sudo dhclient -r; sudo dhclient <interface-name>
1064 # or on cmc,
1065 # /etc/init.d/dnsmasq stop
1066 # vi /tmp/dhcp.leases
1067 # /etc/init.d/dnsmasq start
1068
1069
1070 # default dhcp range is 100-150
1071 # bottom port,  iPXE (PCI 03:00.0) in seabios boot menu
1072 dhcp-host=c8:60:00:31:6b:75,set:kd,$l.2,kd
1073 dhcp-host=94:05:bb:1e:2c:2e,set:sy,$l.3,sy
1074 # top port, iPXE (PCI 04:00.0) in seabios boot menu
1075 #dhcp-host=c8:60:00:2b:15:07,set:kd,$l.2,kd
1076 # 4 is reserved for a staticly configured host wrt2
1077 # old x2 with bad fan
1078 #dhcp-host=00:1f:16:16:39:24,set:x2,$l.5,x2
1079 dhcp-host=f0:de:f1:81:ec:88,set:x2,$l.5,x2
1080 dhcp-host=c4:8e:8f:44:f5:63,set:x2w,$l.6,x2w
1081 dhcp-host=34:7d:f6:ed:ec:07,set:syw,$l.7,syw
1082 dhcp-host=80:fa:5b:1c:6e:cf,set:amy,$l.8,amy
1083 # This is so fai can have an explicit name to use for testing,
1084 # or else any random machine which did a pxe boot would get
1085 # reformatted. The mac is from doing a virt-install, cancelling it,
1086 # and copying the generated mac, so it should be randomish.
1087 dhcp-host=52:54:00:9c:ef:ad,set:demohost,$l.12,demohost
1088 dhcp-host=62:03:cb:a8:3e:a3,set:trp,$1.13,trp
1089 # 14 = wrt3
1090 dhcp-host=00:1f:16:14:01:d8,set:x3,$l.18,x3
1091 # BRN001BA98CA823 in dhcp logs
1092 dhcp-host=00:1b:a9:8c:a8:23,set:brother,$l.19,brother
1093
1094 dhcp-host=00:26:b6:f7:d4:d8,set:amyw,$l.23,amyw
1095 dhcp-host=9a:c6:52:6f:ce:7c,set:onep9,$l.24,onep9
1096 dhcp-host=38:63:bb:07:5a:f9,set:hp,$l.25,hp
1097 dhcp-host=00:26:b6:f6:0f:e9,set:frodow,$l.28,frodow
1098 dhcp-host=6c:56:97:88:7b:74,set:amazontab,$l.31,amazontab
1099 dhcp-host=0a:8a:9b:cf:b5:ec,set:samsungtab,$l.32,samsungtab
1100
1101
1102
1103 # faiserver vm
1104 dhcp-host=52:54:00:56:09:f9,set:faiserver,$l.15,faiserver
1105
1106 # This is the ip it picks by default if dhcp fails,
1107 # so might as well use it.
1108 # hostname is the name it uses according to telnet
1109 dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,$l.251,switch9429ca
1110
1111 # template
1112 # dhcp-host=,$l.,
1113
1114 # uncomment to do tftpboot. openwrt snapshot from 2022-01, seems like it cant
1115 # access /mnt/usb/tftpboot due to some jail or sandbox thing
1116 #enable-tftp=br-lan
1117 #tftp-root=/mnt/usb/tftpboot
1118 #dhcp-optsfile=/etc/dnsmasq-dhcpopts.conf
1119
1120 #log-queries=extra
1121 EOF
1122
1123
1124 if $dnsmasq_restart && ! $dev2; then
1125   # todo: can our ptr records be put in /etc/hosts?
1126   # eg: user normal /etc/hosts records, and they wont be used for A resolution
1127   # due to the other settings, but will be used for ptr? then maybe
1128   # we dont have to restart dnsmasq for a dns update?
1129   #
1130   # interesing link:
1131   # https://www.redpill-linpro.com/techblog/2019/08/27/evaluating-local-dnssec-validators.html#toggling-dnssec-validation-1
1132   # we could turn on dnssec validation when wrt gets dnsmasq > 2.80. currently at 2.80.
1133   # also we can turn off dnssec in systemd-resolved if we know the router is doing it.
1134   #
1135   # Also, reload of dnsmasq seems to break things, wifi
1136   # clients were not getting internet connectivity.
1137
1138   v /etc/init.d/dnsmasq restart
1139 fi
1140
1141 if $firewall_restart; then
1142   v /etc/init.d/firewall restart
1143 fi
1144
1145 # this may just restart the network and take care of the network_restart below.
1146 if $wireless_restart; then
1147   v wifi
1148 fi
1149
1150 # todo: we should catch errors and still run this if needed
1151 if $network_restart; then
1152   reboot
1153 fi
1154
1155 exit 0