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 # shellcheck disable=SC1091 # somewhat dynamic
  19
  20 set -e; . /usr/local/lib/bash-bear; set +e
  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 ap=false
  54 libremanage_host=wrt2
  55 lanip=1
  56 while getopts hm:t:yz opt; do
  57   case $opt in
  58     h) usage 0 ;;
  59     t)
  60       case $2 in
  61         2|3)
  62           dev2=true
  63           libremanage_host=$hostname
  64           ;;&
  65         2)
  66           lanip=4
  67           hostname=wrt2
  68           ;;
  69         3)
  70           lanip=14
  71           hostname=wrt3
  72           ;;
  73         test)
  74           test=true
  75           ;;
  76         client)
  77           client=true
  78           ;;
  79         ap)
  80           ap=true
  81           lanip=53
  82           hostname=cmcap
  83           ;;
  84         *) echo "$0: unexpected arg to -t: $*" >&2; usage 1 ;;
  85       esac
  86       ;;
  87     y)
  88       zblock=false
  89       rm -f /root/zblock
  90       ;;
  91     z)
  92       zblock=true
  93       touch /root/zblock
  94       ;;
  95     m)  mac=$OPTARG ;;
  96     *) echo "$0: Internal error! unexpected args: $*" >&2 ; usage 1 ;;
  97   esac
  98 done
  99 shift "$((OPTIND-1))"   # Discard the options and sentinel --
 100
 101 if [[ $1 ]]; then
 102   h=$1
 103 elif [[ $hostname ]]; then
 104   h=$hostname
 105 else
 106   h=cmc
 107 fi
 108
 109 if [[ ! $hostname ]]; then
 110   hostname=$h
 111 fi
 112
 113
 114 secrets=false
 115 if [[ -e /root/router-secrets ]]; then
 116   secrets=true
 117   # shellcheck source=/p/router-secrets
 118   source /root/router-secrets
 119 fi
 120
 121 if [[ ! $mac ]] && ! $test && $secrets; then
 122   # if we wanted to increment it
 123   #mac=${mac:0: -1}$((${mac: -1} + 2))
 124   mac=${rwmac[$h]}
 125 fi
 126
 127 if (( $# != 0 )); then
 128   usage 1
 129 fi
 130
 131
 132 macpre=${mac:0: -1}
 133 macsuf=${mac: -1}
 134
 135
 136 p_updated=false
 137 pmirror() {
 138   if $p_updated; then
 139     return
 140   fi
 141   # background: upgrading all packages is not recommended because it
 142   # doesn't go into the firmware. build new firmware if you want
 143   # lots of upgrades. I think /tmp/opkg-lists is a pre openwrt 14 location.
 144   f=(/var/opkg-lists/*)
 145   if ! (( $(date -r ${f[0]} +%s) + 60*60*24 > $(date +%s) )); then
 146     if ! opkg update; then
 147       echo "$0: warning: opkg update failed" >&2
 148     fi
 149     p_updated=true
 150   fi
 151 }
 152
 153 pi() {
 154   to_install=()
 155   for p in "$@"; do
 156     pname=${p##*/}
 157     pname=${pname%%_*}
 158     if [[ ! $(opkg list-installed "$pname") ]]; then
 159       to_install+=($p)
 160       pmirror
 161     fi
 162   done
 163   if (( ${#to_install[@]} >= 1 )); then
 164     opkg install ${to_install[@]}
 165   fi
 166 }
 167
 168 v() {
 169   printf "+ %s\n" "$*"
 170   "$@"
 171 }
 172
 173 ######### uci example:#######
 174 # # https://wiki.openwrt.org/doc/uci
 175 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
 176 # wan="firewall.@zone[$wan_index]"
 177 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
 178 #     # default is wan
 179 #     v uci set firewall.@forwarding[0].dest=$forward_dest
 180 #     uci commit firewall
 181 #     firewall_restart=true
 182 # fi
 183 ####### end uci example #####
 184
 185 uset() {
 186   printf "+ uset %s\n" "$*"
 187   local key="$1"
 188   local val="$2"
 189   local service="${key%%.*}"
 190   restart_var=${service}_restart
 191   if [[ ! ${!restart_var} ]]; then
 192     eval $restart_var=false
 193   fi
 194   if [[ $(uci get "$key") != "$val" ]]; then
 195     v uci set "$key"="$val"
 196     uci commit $service
 197     eval $restart_var=true
 198   fi
 199 }
 200
 201 udel() {
 202   printf "+ udel %s\n" "$*"
 203   local key="$1"
 204   local val="$2"
 205   local service="${key%%.*}"
 206   restart_var=${service}_restart
 207   if [[ ! ${!restart_var} ]]; then
 208     eval $restart_var=false
 209   fi
 210   if uci get "$key" &>/dev/null; then
 211     v uci set "$key"="$val"
 212     uci commit $service
 213     eval $restart_var=true
 214   fi
 215 }
 216 cedit() {
 217   v command cedit -v "$@"
 218 }
 219
 220
 221 ### network config
 222 ###
 223 lan=10.0.0.0
 224 if $test; then
 225   lan=10.1.0.0
 226 elif [[ $hostname == cmc || $hostname == cmcap ]]; then
 227   lan=10.2.0.0
 228 elif $client; then
 229   lan=10.3.0.0
 230 fi
 231
 232 if $test; then
 233   ssid="gnuv3"
 234 elif $secrets; then
 235   ssid=${rssid[$h]}
 236 fi
 237
 238 : "${ssid:=librecmc}"
 239
 240
 241 if $secrets; then
 242   key=${rkey[$h]}
 243 fi
 244 : "${key:=pictionary49}"
 245
 246 mask=255.255.0.0
 247 cidr=16
 248 l=${lan%.0}
 249
 250 # why did we lock this? i don't know
 251 #passwd -l root ||: #already locked fails
 252
 253 sed -ibak '/^root:/d' /etc/shadow
 254 # /root/router created by manually running passwd then copying the resulting
 255 # line. We have no mkpasswd on wrt/librecmc, then we scp it in.
 256 cat /root/router >>/etc/shadow
 257 # otherwise, serial console gets root login with no password
 258 uset system.@system[0].ttylogin 1
 259
 260
 261
 262 cat >/usr/bin/archlike-pxe-mount <<'EOFOUTER'
 263 #!/bin/bash
 264 # symlinks are collapsed for nfs mount points, so use a bind mount.
 265 # tried putting this in /etc/config/fstab,
 266 # then doing block mount, it didn't work. This doesn't persist across reboots,
 267 # todo: figure that out
 268 rm -f /etc/fstab
 269 for d in /run/{arch,parabola}iso/bootmnt; do
 270 cat >>/etc/fstab <<EOF
 271 /mnt/usb/tftpboot $d none bind 0 0
 272 EOF
 273 mount | grep $d &>/dev/null || mount $d
 274 done
 275 /etc/init.d/nfsd restart
 276 EOFOUTER
 277 chmod +x /usr/bin/archlike-pxe-mount
 278
 279 sed -i '/^root:/s,/bin/ash$,/bin/bash,' /etc/passwd
 280
 281
 282
 283 uset dropbear.@dropbear[0].PasswordAuth 0
 284 uset dropbear.@dropbear[0].RootPasswordAuth 0
 285 uset dropbear.@dropbear[0].Port 2220
 286 if ! cmp -s /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key; then
 287   cp /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key
 288   dropbear_restart=true
 289 fi
 290
 291 if $dropbear_restart; then
 292   v /etc/init.d/dropbear restart
 293 fi
 294
 295
 296 uset network.lan.ipaddr $l.$lanip
 297 uset network.lan.netmask $mask
 298 if $dev2  || $client || $ap; then
 299   if $dev2 || $ap; then
 300     uset network.lan.gateway $l.1
 301     uset network.wan.proto none
 302     uset network.wan6.proto none
 303   fi
 304   /etc/init.d/dnsmasq stop
 305   /etc/init.d/dnsmasq disable
 306   /etc/init.d/odhcpd stop
 307   /etc/init.d/odhcpd disable
 308   rm -f /etc/resolv.conf
 309   if $ap; then
 310     cat >/etc/resolv.conf <<EOF
 311 nameserver $l.1
 312 EOF
 313   else
 314     cat >/etc/resolv.conf <<'EOF'
 315 nameserver 8.8.8.8
 316 nameserver 8.8.4.4
 317 EOF
 318   fi
 319
 320   # things i tried to keep dnsmasq running but not enabled except local dns,
 321   # but it didnt work right and i dont need it anyways.
 322   # uset dhcp.wan.ignore $dev2 # default is false
 323   # uset dhcp.lan.ignore $dev2 # default is false
 324   # uset dhcp.@dnsmasq[0].interface lo
 325   # uset dhcp.@dnsmasq[0].localuse 0
 326   # uset dhcp.@dnsmasq[0].resolvfile /etc/dnsmasq.conf
 327   # uset dhcp.@dnsmasq[0].noresolv 1
 328   # todo: populate /etc/resolv.conf with a static value
 329
 330 else
 331   # these are the defaults
 332
 333   # this is not needed unless switching from the above condition.
 334   # disabling just to debug
 335   #uset network.lan.gateway ''
 336
 337   uset network.wan.proto dhcp
 338   uset network.wan6.proto dhcpv6
 339   /etc/init.d/dnsmasq start
 340   # todo: figure out why this returns 1
 341   /etc/init.d/dnsmasq enable ||:
 342   /etc/init.d/odhcpd start
 343   /etc/init.d/odhcpd enable
 344 fi
 345
 346 wireless_restart=false
 347
 348 if $client; then
 349   uset wireless.default_radio0.network 'wwan'
 350   uset wireless.default_radio0.ssid ${rclientssid[$h]}
 351   uset wireless.default_radio0.encryption 'psk2'
 352   uset wireless.default_radio0.device 'radio0'
 353   uset wireless.default_radio0.mode 'sta'
 354   uset wireless.default_radio0.bssid ${rclientbssid[$h]}
 355   # todo: look into whether 5g network is available.
 356   uset wireless.default_radio0.key ${rclientkey[$h]}
 357   uset wireless.radio0.disabled false
 358   uset wireless.radio1.disabled true
 359 else
 360   # defaults, just reseting in case client config ran
 361   uset wireless.default_radio0.network lan
 362   uset wireless.default_radio0.mode ap
 363   for x in 0 1; do
 364     uset wireless.default_radio$x.ssid "$ssid"
 365     uset wireless.default_radio$x.key $key
 366     uset wireless.default_radio$x.encryption psk2
 367     if [[ $mac ]]; then
 368       uset wireless.default_radio$x.macaddr $macpre$((macsuf + 2*x))
 369     fi
 370     # disable/enable. secondary device has wireless disabled
 371     uset wireless.radio$x.disabled $dev2
 372   done
 373 fi
 374
 375 if grep '^OPENWRT_BOARD="mvebu/cortexa9"' /etc/os-release &>/dev/null; then
 376   # todo, I also enabled irqbalance, didnt script it though
 377   # https://forum.openwrt.org/t/wrt1900acs-wifi-issue-after-upgrade-from-19-07-to-21-02-vacuum-cleaner-legacy-rate-support/113311/28
 378   cat >/etc/rc.local <<'EOF'
 379 echo "0" >> /sys/kernel/debug/ieee80211/phy0/mwlwifi/tx_amsdu
 380 echo "0" >> /sys/kernel/debug/ieee80211/phy1/mwlwifi/tx_amsdu
 381 exit 0
 382 EOF
 383   chmod +x /etc/rc.local
 384   /etc/rc.local
 385   uset wireless.radio0.disassoc_low_ack 0
 386   uset wireless.radio1.disassoc_low_ack 0
 387 fi
 388
 389
 390 # found with https://openwrt.org/docs/guide-user/network/wifi/iwchan.
 391 # However, the default also chooses 11, and better to let it choose in case things change.
 392 # case $HOSTNAME in
 393 #   cmc)
 394 #     uset wireless.radio0.channel 11
 395 #     ;;
 396 # esac
 397
 398
 399 # usb, screen, relay are for libremanage
 400 # rsync is for brc
 401 #
 402 # relay package temporarily disabled
 403 # /root/relay_1.0-1_mips_24kc.ipk
 404 #
 405 # note: prometheus-node-exporter-lua-openwrt seems to be a dependency of
 406 # prometheus-node-exporter-lua in practice.
 407
 408 pkgs=(
 409   tcpdump
 410   screen
 411   rsync
 412   kmod-usb-storage
 413   block-mount
 414   kmod-fs-ext4
 415   prometheus-node-exporter-lua-openwrt
 416   prometheus-node-exporter-lua
 417 )
 418
 419 if ! $ap; then
 420   pkgs+=(
 421     unbound-daemon
 422     unbound-checkconf
 423   )
 424 fi
 425
 426 v pi "${pkgs[@]}"
 427 # nfs-kernel-server \
 428   #   openvpn-openssl adblock libusb-compat \
 429   #   kmod-usb-serial-cp210x kmod-usb-serial-ftdi \
 430
 431
 432 cat >/etc/libremanage.conf <<EOF
 433 ${libremanage_host}_type=switch
 434 ${libremanage_host}_channel=1
 435 EOF
 436
 437
 438
 439 v /etc/init.d/fstab enable ||:
 440
 441 # rebooting makes mounting work, but comparing lsmod,
 442 # i'm guessing this will too. todo, test it.
 443 # 255 == module already loaded
 444 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
 445
 446 # for archlike pxe. The default settings in the installer expect to find
 447 # the NFS at one of these dirs
 448 mkdir -p /run/archiso/bootmnt
 449 mkdir -p /run/parabolaiso/bootmnt
 450
 451 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
 452 # that is the case after running this or rebooting.
 453 # wiki says safe to do in case of fstab changes:
 454
 455 ## ian: usb broke on old router. if that happens, can just comment this to disable problems
 456 # echo | cedit /etc/config/fstab ||:
 457 cedit /etc/config/fstab <<EOF || { v block umount; v block mount; }
 458 config global automount
 459       option from_fstab 1
 460       option anon_mount 1
 461
 462 config mount
 463 # /overlay is an / overlay mount for installing extra packages, etc.
 464 # https://openwrt.org/docs/guide-user/additional-software/extroot_configuration
 465       option target     /mnt/usb
 466 #      option target    /overlay
 467       option device     /dev/sda1
 468       option fstype     ext4
 469       option options    rw,async,noatime,nodiratime
 470       option enabled    0
 471 EOF
 472
 473
 474 # ian: disabled because afaik I don't need it, no benefit.
 475 # config global autoswap
 476 #       option from_fstab 1
 477 #       option anon_swap 1
 478
 479 # config swap
 480 #       option device   /dev/sda1
 481 #       option enabled  1
 482
 483
 484
 485
 486 # exportfs -ra wont cut it when its the same path, but now a bind mount
 487 # todo: restart nfs when nfs is enabled?
 488 #cedit /etc/exports <<EOF || v /etc/init.d/nfsd restart ||:
 489 cedit /etc/exports <<EOF ||:
 490 /mnt/usb  $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 491 # for arch pxe
 492 /run/archiso/bootmnt    $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 493 /run/parabolaiso/bootmnt        $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 494 EOF
 495
 496
 497 # todo: enable nfs when we need it only.
 498 # v /etc/init.d/portmap start
 499 # v /etc/init.d/nfsd start
 500 # v /etc/init.d/portmap enable
 501 # v /etc/init.d/nfsd enable
 502
 503
 504 cedit /etc/config/prometheus-node-exporter-lua <<'EOF' || /etc/init.d/prometheus-node-exporter-lua restart
 505 config prometheus-node-exporter-lua 'main'
 506         option listen_ipv6 '0'
 507         option listen_interface 'lan'
 508         option listen_port '9100
 509 EOF
 510
 511 # default, as of this writing is:
 512 # config prometheus-node-exporter-lua 'main'
 513 #       option listen_interface 'loopback'
 514 #       option listen_port '9100'
 515
 516
 517
 518
 519
 520 ########## openvpn exampl
 521 ########## missing firewall settings for routing lan
 522 ########## traffic
 523 # v /etc/init.d/openvpn start
 524 # v /etc/init.d/openvpn enable
 525
 526 # # from https://wiki.openwrt.org/doc/uci/firewall
 527 # # todo: not sure if /etc/init.d/network needs restarting.
 528 # # I did, and I had to restart the vpn afterwards.
 529 # # This maps a uci interface to a real interface which is
 530 # # managed outside of uci.
 531 # cedit /etc/config/network <<'EOF' ||:
 532 # config interface 'tun0'
 533 #         option ifname 'tun0'
 534 #         option proto 'none'
 535 # EOF
 536 # cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 537 # config openvpn my_client_config
 538 #         option enabled 1
 539 #         option config /etc/openvpn/client.conf
 540 # EOF
 541
 542
 543 wgport=26000
 544
 545 network_restart=false
 546 if $client; then
 547   cedit wific /etc/config/network <<EOF || network_restart=true
 548 # https://openwrt.org/docs/guide-user/network/wifi/connect_client_wifi
 549 config interface 'wwan'
 550  option proto 'dhcp'
 551 EOF
 552 fi
 553
 554 cedit /etc/config/network <<EOF || network_restart=true
 555 config 'route' 'transmission'
 556  option 'interface' 'lan'
 557  option 'target' '10.174.0.0'
 558  option 'netmask' '255.255.0.0'
 559  option 'gateway' '$l.2'
 560
 561 option interface 'wg0'
 562  option proto 'wireguard'
 563  option private_key '$(cat /root/wg.key)'
 564  option listen_port $wgport
 565  list addresses '10.3.0.1/24'
 566  list addresses 'fdfd::1/64'
 567
 568 # tp
 569 config wireguard_wg0 'wgclient'
 570  option public_key '3q+WJGrm85r59NgeXOIvppxoW4ux/+koSw6Fee1c1TI='
 571  option preshared_key '$(cat /root/wg.psk)'
 572  list allowed_ips '10.3.0.2/24'
 573  list allowed_ips 'fdfd::2/64'
 574 EOF
 575
 576 # Need to reload before we change dnsmasq to give out
 577 # static ips in our new range.
 578 if $network_restart; then
 579   v /etc/init.d/network reload
 580 fi
 581
 582
 583 ### begin firewall edits ###
 584 if $client; then
 585   cedit wific /etc/config/firewall <<EOF || firewall_restart=true
 586 config zone
 587  option name    wwan
 588  option input    REJECT
 589  option output   ACCEPT
 590  option forward  REJECT
 591  option masq     1
 592  option mtu_fix  1
 593  option network  wwan
 594 EOF
 595 fi
 596
 597 case $hostname in
 598   wrt)
 599     cedit host /etc/config/firewall <<EOF || firewall_restart=true
 600 config redirect
 601  option name ssh
 602  option src              wan
 603  option src_dport        22
 604  option dest_ip          $l.3
 605  option dest             lan
 606 EOF
 607     ;;
 608   cmc)
 609     cedit host /etc/config/firewall <<EOF || firewall_restart=true
 610 config redirect
 611  option name ssh
 612  option src              wan
 613  option src_dport        22
 614  option dest_ip          $l.2
 615  option dest             lan
 616 EOF
 617     ;;
 618 esac
 619
 620 {
 621   # shellcheck source=/p/c/cmc-firewall-data
 622   . /root/cmc-firewall-data
 623   # sets $http_ip
 624   # shellcheck source=/p/c/cmc-firewall-data-http
 625   . /root/cmc-firewall-data-http
 626   cat <<EOF
 627 config redirect
 628  option name http
 629  option src              wan
 630  option src_dport        80
 631  option dest             lan
 632  option dest_ip          $l.$http_ip
 633  option proto            tcp
 634 config rule
 635  option src              wan
 636  option target           ACCEPT
 637  option dest_port        80
 638  option proto            tcp
 639
 640 config redirect
 641  option name https
 642  option src              wan
 643  option src_dport        443
 644  option dest             lan
 645  option dest_ip          $l.$http_ip
 646  option proto            tcp
 647 config rule
 648  option src              wan
 649  option target           ACCEPT
 650  option dest_port        443
 651  option proto            tcp
 652
 653
 654 ## begin no external dns for ziva
 655 config rule
 656  option src  lan
 657  option src_ip   10.2.0.23
 658  option dest_port 53
 659  option dest  wan
 660  option target REJECT
 661
 662
 663 config rule
 664  option src wan
 665  option dest_ip   10.2.0.23
 666  option src_port 53
 667  option dest  lan
 668  option target REJECT
 669
 670
 671 config rule
 672  option src  lan
 673  option src_ip   10.2.0.31
 674  option dest_port 53
 675  option dest  wan
 676  option target REJECT
 677
 678
 679 config rule
 680  option src wan
 681  option dest_ip   10.2.0.31
 682  option src_port 53
 683  option dest  lan
 684  option target REJECT
 685
 686
 687 config rule
 688  option src  lan
 689  option src_ip   10.2.0.32
 690  option dest_port 53
 691  option dest  wan
 692  option target REJECT
 693
 694
 695 config rule
 696  option src wan
 697  option dest_ip   10.2.0.32
 698  option src_port 53
 699  option dest  lan
 700  option target REJECT
 701 ## end no external dns for ziva
 702
 703
 704 config rule
 705  option src              wan
 706  option target           ACCEPT
 707  option dest_port        22
 708
 709 config redirect
 710  option name promkd
 711  option src              wan
 712  option src_dport        9091
 713  option dest_port        9091
 714  option dest_ip          $l.2
 715  option dest             lan
 716 config rule
 717  option src              wan
 718  option target           ACCEPT
 719  option dest_port        9091
 720
 721 # was working on an openvpn server, didn't finish
 722 # config redirect
 723 #  option name vpnkd
 724 #  option src              wan
 725 #  option src_dport        1196
 726 #  option dest_port        1196
 727 #  option dest_ip          $l.2
 728 #  option dest             lan
 729 # config rule
 730 #  option src              wan
 731 #  option target           ACCEPT
 732 #  option dest_port        1196
 733
 734
 735 config redirect
 736  option name sshkdalt
 737  option src              wan
 738  option src_dport        8989
 739  option dest_port        8989
 740  option dest_ip          $l.2
 741  option dest             lan
 742 config rule
 743  option src              wan
 744  option target           ACCEPT
 745  option dest_port        8989
 746
 747
 748
 749 config redirect
 750  option name icecast
 751  option src              wan
 752  option src_dport        8000
 753  option dest_port        8000
 754  option dest_ip          $l.2
 755  option dest             lan
 756 config rule
 757  option src              wan
 758  option target           ACCEPT
 759  option dest_port        8000
 760
 761 config rule
 762  option name sshcmc
 763  option src              wan
 764  option target           ACCEPT
 765  option dest_port        2220
 766
 767 config rule
 768  option name wg
 769  option src              wan
 770  option target           ACCEPT
 771  option dest_port        $wgport
 772  option proto            udp
 773
 774 config redirect
 775  option name navidromehttps
 776  option src              wan
 777  option src_dport        4500
 778  option dest_port        4500
 779  option dest_ip          $l.2
 780  option dest             lan
 781 config rule
 782  option src              wan
 783  option target           ACCEPT
 784  option dest_port        4500
 785
 786 config redirect
 787  option name navidrome
 788  option src              wan
 789  option src_dport        4533
 790  option dest_port        4533
 791  option dest_ip          $l.2
 792  option dest             lan
 793 config rule
 794  option src              wan
 795  option target           ACCEPT
 796  option dest_port        4533
 797
 798 # So a client can just have b8.nz dns even when they
 799 # are on the lan.
 800 #config redirect
 801 # option name navidromelan
 802 # option src              lan
 803 # option src_dport        4533
 804 # option dest_port        4533
 805 # option dest_ip          $l.2
 806 # option dest             lan
 807
 808
 809 # config redirect
 810 #  option name icecast
 811 #  option src              wan
 812 #  option src_dport        8000
 813 #  option dest_port        8000
 814 #  option dest_ip          $l.2
 815 #  option dest             lan
 816 # config rule
 817 #  option src              wan
 818 #  option target           ACCEPT
 819 #  option dest_port        8000
 820
 821
 822 # config redirect
 823 # option name httpskd8448
 824 #  option src              wan
 825 #  option src_dport        8448
 826 #  option dest             lan
 827 #  option dest_ip          $l.2
 828 #  option proto            tcp
 829 # config rule
 830 #  option src              wan
 831 #  option target           ACCEPT
 832 #  option dest_port        8448
 833 #  option proto            tcp
 834
 835 config redirect
 836  option name syncthing
 837  option src              wan
 838  option src_dport        22001
 839  option dest_ip          $l.8
 840  option dest             lan
 841 config rule
 842  option src              wan
 843  option target           ACCEPT
 844  option dest_port        22001
 845
 846
 847 #config redirect
 848 # option name i2p
 849 # option src              wan
 850 # option src_dport        $i2pport
 851 # option dest_ip          $l.178
 852 # option dest             lan
 853 #config rule
 854 # option src              wan
 855 # option target           ACCEPT
 856 # option dest_port        $i2pport
 857
 858 config rule
 859  option name ssh-ipv6
 860  option src wan
 861  option dest lan
 862  # note, using mac transform, we could allow all traffic to a host like this,
 863  # replacing 1 as appropriate
 864  #option dest_ip ::111:11ff:fe11:1111/::ffff:ffff:ffff:ffff
 865  option dest_port 22
 866  option target ACCEPT
 867  option family ipv6
 868
 869 # config rule
 870 #  option name http-ipv6
 871 #  option src wan
 872 #  option dest lan
 873 #  option dest_port 80
 874 #  option target ACCEPT
 875 #  option family ipv6
 876
 877 # config rule
 878 #  option name https-ipv6
 879 #  option src wan
 880 #  option dest lan
 881 #  option dest_port 443
 882 #  option target ACCEPT
 883 #  option family ipv6
 884
 885 config rule
 886  option name node-exporter
 887  option src wan
 888  option dest lan
 889  option dest_port 9101
 890  option target ACCEPT
 891  option family ipv6
 892
 893 config rule
 894  option name mail587-ipv6
 895  option src wan
 896  option dest lan
 897  option dest_port 587
 898  option target ACCEPT
 899  option family ipv6
 900
 901 EOF
 902 } | cedit /etc/config/firewall || firewall_restart=true
 903 ### end firewall edits ###
 904
 905
 906 # firewall comment:
 907 # not using and in newer wrt, fails, probably due to nonexistent file, error output
 908 # on:
 909
 910 # Reference error: left-hand side expression is not an array or object
 911 # In [anonymous function](), file /usr/share/ucode/fw4.uc, line 3137, byte 12:
 912 #   called from function [arrow function] (/usr/share/ucode/fw4.uc:733:71)
 913 #   called from function foreach ([C])
 914 #   called from function [anonymous function] (/usr/share/ucode/fw4.uc:733:72)
 915 #   called from function render_ruleset (/usr/share/firewall4/main.uc:56:24)
 916 #   called from anonymous function (/usr/share/firewall4/main.uc:143:29)
 917 #
 918 #  `        if (!inc.enabled) {`
 919 #   Near here -------^
 920 #
 921 #
 922 # The rendered ruleset contains errors, not doing firewall restart.
 923 # /usr/bin/wrt-setup-local:160:error: ""$@"" returned 1
 924
 925 ## include a file with users custom iptables rules
 926 #config include
 927 #       option path /etc/firewall.user
 928 #       option type 'restore'
 929 #       option family 'ipv4'
 930
 931
 932
 933 # not using wireguard for now
 934 # if ! uci get firewall.@zone[1].network | grep wg0 &>/dev/null; then
 935 #   # cant mix cedit plus uci
 936 #   echo | cedit /etc/config/firewall ||:
 937 #   uci add_list firewall.@zone[1].network=wg0
 938 #   uci commit firewall
 939 #   firewall-cedit ||:
 940 #   firewall_restart=true
 941 # fi
 942
 943
 944
 945 cedit /etc/hosts <<EOF ||:
 946 127.0.1.1 $hostname
 947 EOF
 948
 949
 950 #mail_host=$(grep -F mail.iankelling.org /etc/hosts | awk '{print $1}')
 951 # if [[ $mail_host ]]; then
 952 #     sed -i '/^$mail_host/a mail.iankelling.org' /etc/hosts
 953 # fi
 954
 955
 956 uset dhcp.@dnsmasq[0].domain b8.nz
 957 uset system.@system[0].hostname $hostname
 958 uset dhcp.@dnsmasq[0].local
 959
 960 # uci doesnt seem to have a way to set an empty value,
 961 # if you delete it, it goes back to the default. this seems
 962 # to be a decent workaround.
 963 # todo: setup /etc/resolv.conf to point to 127.0.0.1
 964 # later note: disabled, I dunno why I set this.
 965 # uset dhcp.@dnsmasq[0].resolvfile /dev/null
 966
 967 # if dnsmasq happens to not send out a dns server,
 968 # odhcpd will send one out like this:
 969 # NetworkManager[953]: <info>  [1614982580.5192] dhcp6 (wlan0): option dhcp6_name_servers   => 'fd58:5801:8e02::1'
 970 # but i dont want ipv6 dns, just keep it simple to ipv4.
 971 # I know my isp doesnt have ipv6 right now,
 972 # so just stop this thing.
 973 # note: tried this, it didn't do anything:
 974 # uset dhcp.@odhcpd[0].dns 10.2.0.1
 975
 976 # iank, disablde while debugging.
 977 #/etc/init.d/odhcpd stop
 978 #/etc/init.d/odhcpd disable
 979
 980 # todo: make the above conditional on which server this is.
 981
 982 ## left commented in case we have ipv6 problems in the future
 983 # avoid errors in log. current isp doesnt have ipv6
 984 #uset unbound.@unbound[0].protocol ip4_only
 985
 986 # todo: im not sure all these are needed, but they all look
 987 # like good options.
 988 # https://blog.cloudflare.com/dns-over-tls-for-openwrt/
 989 # https://gist.github.com/vqiu/7b32d3a19a7a09d32e108d998de166c2
 990 #https://blog.thestateofme.com/2018/04/04/howto-secure-your-dns-with-a-raspberry-pi-unbound-and-cloudflare-1-1-1-1/
 991 #
 992 # # i found that the zone example was having no effect on the config
 993 # # here:
 994 # https://github.com/openwrt/packages/blob/openwrt-19.07/net/unbound/files/README.md
 995 #
 996 # # todo: unbound-control, i'm not sure what the purpose of that thing is, some
 997 # # kind of coordination with dhcp of dnsmasq, but what?
 998 #
 999 # note: for debugging, edit /etc/init.d/unbound, change
1000 # procd_set_param command $PROG -d -c $UB_TOTAL_CONF
1001 # to:
1002 # procd_set_param command $PROG -vvv -d -c $UB_TOTAL_CONF
1003
1004 if ! $ap; then
1005   {
1006     cat <<'EOF'
1007 do-tcp: yes
1008 prefetch: yes
1009 qname-minimisation: yes
1010 rrset-roundrobin: yes
1011 use-caps-for-id: yes
1012 do-ip6: yes
1013 private-domain: b8.nz
1014 local-zone: "10.in-addr.arpa." transparent
1015 access-control-view: 10.2.0.31/32 "youtube"
1016 EOF
1017
1018     if $zblock; then
1019       cat <<'EOF'
1020 # no sy until that dongle is used by ziva
1021
1022 # syw
1023 #access-control-view: 10.2.0.7/32 "youtube"
1024 # bow
1025 access-control-view: 10.2.0.29/32 "youtube"
1026 # samsungtab
1027 access-control-view: 10.2.0.32/32 "youtube"
1028 EOF
1029     fi
1030   } | cedit /etc/unbound/unbound_srv.conf  || unbound_restart=true
1031
1032
1033   # dns based blocking vs ip based. with ip, same
1034   # server can have multiple domains. in dns,
1035   # you have to make sure clients to use the local dns.
1036   # https dns will need to be blocked by ip in
1037   # order to be comprehensive
1038
1039
1040
1041   {
1042     # shellcheck source=/p/c/ptr-data
1043     . /root/ptr-data
1044     cat  <<EOF
1045
1046 local-data-ptr: "10.2.0.1 cmc.b8.nz"
1047
1048 local-data-ptr: "10.174.2.2 transmission.b8.nz"
1049 local-data-ptr: "10.173.8.1 defaultnn.b8.nz"
1050 local-data-ptr: "10.173.8.2 nn.b8.nz"
1051
1052 forward-zone:
1053   name: "."
1054 #  forward-addr: 8.8.8.8
1055 #  forward-addr: 8.8.8.8
1056
1057 # ssl disabled due to this error:
1058 #Sat Dec 24 03:34:44 2022 daemon.err unbound: [6568:0] error: ssl handshake failed crypto error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
1059 #Sat Dec 24 03:34:44 2022 daemon.notice unbound: [6568:0] notice: ssl handshake failed 1.0.0.3 port 853
1060 # on OPENWRT_RELEASE="OpenWrt SNAPSHOT r18639-f5865452ac"
1061 # from about feb 2022
1062
1063 # https://developers.cloudflare.com/1.1.1.1/1.1.1.1-for-families/setup-instructions/dns-over-https
1064 #  forward-addr: 1.1.1.3@853#family.cloudflare-dns.com
1065 #  forward-addr: 1.0.0.3@853#family.cloudflare-dns.com
1066 #  forward-ssl-upstream: yes
1067   forward-first: no
1068   forward-addr: 1.1.1.3
1069   forward-addr: 1.0.0.3
1070
1071 view:
1072   name: "youtube"
1073   local-zone: "googlevideo.com." refuse
1074   local-zone: "video.google.com." refuse
1075   local-zone: "youtu.be." refuse
1076   local-zone: "youtube-nocookie.com." refuse
1077   local-zone: "youtube-ui.l.google.com." refuse
1078   local-zone: "youtube.com." refuse
1079   local-zone: "youtube.googleapis.com." refuse
1080   local-zone: "youtubeeducation.com." refuse
1081   local-zone: "youtubei.googleapis.com." refuse
1082   local-zone: "yt3.ggpht.com." refuse
1083   local-zone: "youtubekids.com." refuse
1084   # try global if no match in view
1085   view-first: yes
1086 EOF
1087   } | cedit /etc/unbound/unbound_ext.conf || unbound_restart=true
1088
1089
1090   if $unbound_restart; then
1091     /etc/init.d/unbound restart
1092     if ! unbound-checkconf; then
1093       echo $0: error: unbound-checkconf failed >&2
1094       exit 1
1095     fi
1096   fi
1097 fi # end if $ap
1098
1099 # # disabled for now. i want to selectively enable it
1100 # # for specific hosts.
1101 # if [[ $(uci get adblock.global.adb_enabled) != 0 ]]; then
1102 #   v uci set adblock.global.adb_enabled=0
1103 #   uci commit adblock
1104 #   /etc/init.d/adblock restart
1105 # fi
1106 # # https://github.com/openwrt/packages/tree/master/net/adblock/files
1107 # cat >/etc/crontabs/root <<'EOF'
1108 # 0 06 * * *    /etc/init.d/adblock reload
1109 # EOF
1110
1111
1112 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
1113
1114 # sometimes /mnt/usb fails, cuz it's just a flash drive,
1115 # so make sure we have this dir or else dnsmasq will fail
1116 # to start.
1117 mkdir -p /mnt/usb/tftpboot
1118
1119 {
1120   # generated with host-info-update
1121   # shellcheck source=/p/c/dnsmasq-data
1122   . /root/dnsmasq-data
1123   cat <<EOF
1124 # no dns
1125 port=0
1126 server=/b8.nz/#
1127 ptr-record=1.0.2.10.in-addr.arpa.,cmc.b8.nz
1128
1129
1130 # https://ret2got.wordpress.com/2018/01/19/how-your-ethereum-can-be-stolen-using-dns-rebinding/
1131 stop-dns-rebind
1132 rebind-domain-ok=b8.nz
1133
1134 # This says the ip of dns server.
1135 # It is default if dnsmasq is doing dns, otherwise, we have to specify it.
1136 # To see it in action, I ran this from a client machine:
1137 # sudo dhcpcd -o domain_name_servers -T
1138 dhcp-option=option:dns-server,$l.1
1139
1140 # use this when doing fai to get the right timezone, its nfsroot is
1141 # setup to use this dhcp option only and call ntpdate.
1142 # generate ips with:
1143 # for h in 0.ubuntu.pool.ntp.org 1.ubuntu.pool.ntp.org ntp.ubuntu.com; do host -t a $h | awk '{print $NF}'; done | while read -r l; do printf ,$l; done
1144 dhcp-option=option:ntp-server,188.165.3.28,202.12.97.45,91.236.251.13,50.205.244.23,78.30.254.80,31.131.0.123,202.65.114.202,94.228.220.14,185.125.190.57,185.125.190.58,91.189.91.157,185.125.190.56,91.189.94.4
1145
1146
1147 # results from googling around dnsmasq optimizations
1148 # about 50k in memory. router has 62 megs.
1149 # in a browsing session, I probably won't ever do 5000 lookups
1150 # before the ttl expiration or whatever does expiration.
1151 cache-size=10000
1152
1153 # ask all servers, use the one which responds first.
1154 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
1155 all-servers
1156
1157 # namebench benchmarks dns servers. google's dns was only
1158 # slightly less fast than some others, and I trust it more
1159 # to give accurate results, stay relatively fast, and
1160 # not do anythin too malicious, so just use that.
1161 # download namebench and run it like this:
1162 # 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
1163 # google
1164 server=1.1.1.3
1165 server=1.0.0.3
1166 server=2606:4700:4700::1113
1167 server=2606:4700:4700::1003
1168
1169 server=10.2.0.1
1170 # server=8.8.4.4
1171 # server=8.8.8.8
1172 # server=2001:4860:4860::8888
1173 # server=2001:4860:4860::8844
1174
1175
1176 # to fixup existin ips, on the client you can do
1177 # sudo dhclient -r; sudo dhclient <interface-name>
1178 # or on cmc,
1179 # /etc/init.d/dnsmasq stop
1180 # vi /tmp/dhcp.leases
1181 # /etc/init.d/dnsmasq start
1182
1183
1184 # default dhcp range is 100-150
1185
1186 # template
1187 # dhcp-host=,$l.,
1188
1189 # pxe tftpboot for arch-like. todo: openwrt snapshot from 2022-01, it cant
1190 # access /mnt/usb/tftpboot due to ujail sandbox
1191 #enable-tftp=br-lan
1192 #tftp-root=/mnt/usb/tftpboot
1193 #tftp-root=/var/run/dnsmasq/tftpboot
1194
1195
1196 dhcp-optsfile=/var/run/dnsmasq/dhcpopts.conf
1197
1198 # for debugging dhcp
1199 #log-queries=extra
1200 EOF
1201 } | cedit /etc/dnsmasq.conf || dnsmasq_restart=true
1202
1203
1204
1205 if $dnsmasq_restart && ! $dev2 && ! $ap; then
1206   # todo: can our ptr records be put in /etc/hosts?
1207   # eg: user normal /etc/hosts records, and they wont be used for A resolution
1208   # due to the other settings, but will be used for ptr? then maybe
1209   # we dont have to restart dnsmasq for a dns update?
1210   #
1211   # interesing link:
1212   # https://www.redpill-linpro.com/techblog/2019/08/27/evaluating-local-dnssec-validators.html#toggling-dnssec-validation-1
1213   # we could turn on dnssec validation when wrt gets dnsmasq > 2.80. currently at 2.80.
1214   # also we can turn off dnssec in systemd-resolved if we know the router is doing it.
1215   #
1216   # Also, reload of dnsmasq seems to break things, wifi
1217   # clients were not getting internet connectivity.
1218
1219   v /etc/init.d/dnsmasq restart
1220 fi
1221
1222 if $ap; then
1223   v /etc/init.d/firewall disable
1224   v /etc/init.d/firewall stop
1225 elif $firewall_restart; then
1226   v /etc/init.d/firewall restart
1227 fi
1228
1229 ## turn off luci
1230 # if already stopped, gives error we want to ignore
1231 /etc/init.d/uhttpd stop |& sed '1{/^Command failed/d}'
1232 /etc/init.d/uhttpd disable |& sed '1{/^Command failed/d}'
1233
1234 # this may just restart the network and take care of the network_restart below.
1235 if $wireless_restart; then
1236   v wifi
1237 fi
1238
1239 # todo: we should catch errors and still run this if needed
1240 if $network_restart; then
1241   reboot
1242 fi
1243
1244 v exit 0