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 $1
  38 }
  39
  40
  41 secrets=false
  42 if [[ -e /root/router-secrets ]]; then
  43   secrets=true
  44   source /root/router-secrets
  45 fi
  46 rmac=$(cat /sys/class/net/eth0/address)
  47 if $secrets; then
  48   hostname=${rhost[$rmac]}
  49 fi
  50 : ${hostname:=wrt}
  51
  52
  53 zblock=false
  54 if [[ -e /root/zblock ]]; then
  55   zblock=true
  56 fi
  57
  58 dnsmasq_restart=false
  59 unbound_restart=false
  60 firewall_restart=false
  61 dev2=false
  62 test=false
  63 client=false
  64 libremanage_host=wrt2
  65 lanip=1
  66 while getopts hm:t:yz opt; do
  67   case $opt in
  68     h) usage ;;
  69     t)
  70       case $2 in
  71         2|3)
  72           dev2=true
  73           libremanage_host=$hostname
  74           ;;&
  75         2)
  76           lanip=4
  77           hostname=wrt2
  78           ;;
  79         3)
  80           lanip=14
  81           hostname=wrt3
  82           ;;
  83         test)
  84           test=true
  85           ;;
  86         client)
  87           client=true
  88           ;;
  89         *) echo "$0: unexpected arg to -t: $*" >&2; usage 1 ;;
  90       esac
  91       ;;
  92     y)
  93       zblock=false
  94       rm -f /root/zblock
  95       ;;
  96     z)
  97       zblock=true
  98       touch /root/zblock
  99       ;;
 100     m)  mac=$OPTARG ;;
 101     *) echo "$0: Internal error! unexpected args: $*" >&2 ; usage 1 ;;
 102   esac
 103 done
 104 shift "$((OPTIND-1))"   # Discard the options and sentinel --
 105
 106 if [[ ! $mac ]] && ! $test && $secrets; then
 107   # if we wanted to increment it
 108   #mac=${mac:0: -1}$((${mac: -1} + 2))
 109   mac=${rwmac[$rmac]}
 110 fi
 111
 112 if (( $# != 0 )); then
 113   usage 1
 114 fi
 115
 116
 117 macpre=${mac:0: -1}
 118 macsuf=${mac: -1}
 119
 120
 121 p_updated=false
 122 pmirror() {
 123   if $p_updated; then
 124     return
 125   fi
 126   # background: upgrading all packages is not recommended because it
 127   # doesn't go into the firmware. build new firmware if you want
 128   # lots of upgrades. I think /tmp/opkg-lists is a pre openwrt 14 location.
 129   f=(/var/opkg-lists/*)
 130   if ! (( $(date -r $f +%s) + 60*60*24 > $(date +%s) )); then
 131     if ! opkg update; then
 132       echo "$0: warning: opkg update failed" >&2
 133     fi
 134     p_updated=true
 135   fi
 136 }
 137
 138 pi() {
 139   to_install=()
 140   for p in "$@"; do
 141     pname=${p##*/}
 142     pname=${pname%%_*}
 143     if [[ ! $(opkg list-installed "$pname") ]]; then
 144       to_install+=($p)
 145       pmirror
 146     fi
 147   done
 148   if [[ $to_install ]]; then
 149     opkg install ${to_install[@]}
 150   fi
 151 }
 152
 153 v() {
 154   printf "+ %s\n" "$*"
 155   "$@"
 156 }
 157
 158 ######### uci example:#######
 159 # # https://wiki.openwrt.org/doc/uci
 160 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
 161 # wan="firewall.@zone[$wan_index]"
 162 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
 163 #     # default is wan
 164 #     v uci set firewall.@forwarding[0].dest=$forward_dest
 165 #     uci commit firewall
 166 #     firewall_restart=true
 167 # fi
 168 ####### end uci example #####
 169
 170 uset() {
 171   printf "+ uset %s\n" "$*"
 172   local key="$1"
 173   local val="$2"
 174   local service="${key%%.*}"
 175   restart_var=${service}_restart
 176   if [[ ! ${!restart_var} ]]; then
 177     eval $restart_var=false
 178   fi
 179   if [[ $(uci get "$key") != "$val" ]]; then
 180     v uci set "$key"="$val"
 181     uci commit $service
 182     eval $restart_var=true
 183   fi
 184 }
 185
 186 udel() {
 187   printf "+ udel %s\n" "$*"
 188   local key="$1"
 189   local val="$2"
 190   local service="${key%%.*}"
 191   restart_var=${service}_restart
 192   if [[ ! ${!restart_var} ]]; then
 193     eval $restart_var=false
 194   fi
 195   if uci get "$key" &>/dev/null; then
 196     v uci set "$key"="$val"
 197     uci commit $service
 198     eval $restart_var=true
 199   fi
 200 }
 201 cedit() {
 202   v command cedit -v "$@"
 203 }
 204
 205
 206 ### network config
 207 ###
 208 lan=10.0.0.0
 209 if $test; then
 210   lan=10.1.0.0
 211 elif [[ $hostname == cmc ]]; then
 212   lan=10.2.0.0
 213 elif $client; then
 214   lan=10.3.0.0
 215 fi
 216
 217 if $test; then
 218   ssid="gnuv3"
 219 elif $secrets; then
 220   ssid=${rssid[$rmac]}
 221 fi
 222
 223 : ${ssid:=librecmc}
 224
 225
 226 if $secrets; then
 227   key=${rkey[$rmac]}
 228 fi
 229 : ${key:=pictionary49}
 230
 231 mask=255.255.0.0
 232 cidr=16
 233 l=${lan%.0}
 234
 235 passwd -l root ||: #already locked fails
 236
 237 sed -ibak '/^root:/d' /etc/shadow
 238 # /root/router created by manually running passwd then copying the resulting
 239 # line. We have no mkpasswd on wrt/librecmc, then we scp it in.
 240 cat /root/router >>/etc/shadow
 241 # otherwise, serial console gets root login with no password
 242 uset system.@system[0].ttylogin 1
 243
 244
 245
 246 cat >/usr/bin/archlike-pxe-mount <<'EOFOUTER'
 247 #!/bin/bash
 248 # symlinks are collapsed for nfs mount points, so use a bind mount.
 249 # tried putting this in /etc/config/fstab,
 250 # then doing block mount, it didn't work. This doesn't persist across reboots,
 251 # todo: figure that out
 252 rm -f /etc/fstab
 253 for d in /run/{arch,parabola}iso/bootmnt; do
 254 cat >>/etc/fstab <<EOF
 255 /mnt/usb/tftpboot $d none bind 0 0
 256 EOF
 257 mount | grep $d &>/dev/null || mount $d
 258 done
 259 /etc/init.d/nfsd restart
 260 EOFOUTER
 261 chmod +x /usr/bin/archlike-pxe-mount
 262
 263 sed -i '/^root:/s,/bin/ash$,/bin/bash,' /etc/passwd
 264
 265
 266
 267 uset dropbear.@dropbear[0].PasswordAuth 0
 268 uset dropbear.@dropbear[0].RootPasswordAuth 0
 269 uset dropbear.@dropbear[0].Port 2220
 270 if ! cmp -s /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key; then
 271   cp /root/dropbear_rsa_host_key /etc/dropbear/dropbear_rsa_host_key
 272   dropbear_restart=true
 273 fi
 274
 275 if $dropbear_restart; then
 276   v /etc/init.d/dropbear restart
 277 fi
 278
 279
 280 uset network.lan.ipaddr $l.$lanip
 281 uset network.lan.netmask $mask
 282 if $dev2  || $client; then
 283   if $dev2; then
 284     uset network.lan.gateway $l.1
 285     uset network.wan.proto none
 286     uset network.wan6.proto none
 287   fi
 288   /etc/init.d/dnsmasq stop
 289   /etc/init.d/dnsmasq disable
 290   /etc/init.d/odhcpd stop
 291   /etc/init.d/odhcpd disable
 292   rm -f /etc/resolv.conf
 293   cat >/etc/resolv.conf <<'EOF'
 294 nameserver 8.8.8.8
 295 nameserver 8.8.4.4
 296 EOF
 297
 298   # things i tried to keep dnsmasq running but not enabled except local dns,
 299   # but it didnt work right and i dont need it anyways.
 300   # uset dhcp.wan.ignore $dev2 # default is false
 301   # uset dhcp.lan.ignore $dev2 # default is false
 302   # uset dhcp.@dnsmasq[0].interface lo
 303   # uset dhcp.@dnsmasq[0].localuse 0
 304   # uset dhcp.@dnsmasq[0].resolvfile /etc/dnsmasq.conf
 305   # uset dhcp.@dnsmasq[0].noresolv 1
 306   # todo: populate /etc/resolv.conf with a static value
 307
 308 else
 309   # these are the defaults
 310   uset network.lan.gateway ''
 311   uset network.wan.proto dhcp
 312   uset network.wan6.proto dhcpv6
 313   /etc/init.d/dnsmasq start
 314   # todo: figure out why this returns 1
 315   /etc/init.d/dnsmasq enable ||:
 316   /etc/init.d/odhcpd start
 317   /etc/init.d/odhcpd enable
 318 fi
 319
 320 wireless_restart=false
 321
 322 if $client; then
 323   uset wireless.default_radio0.network 'wwan'
 324   uset wireless.default_radio0.ssid ${rclientssid[$rmac]}
 325   uset wireless.default_radio0.encryption 'psk2'
 326   uset wireless.default_radio0.device 'radio0'
 327   uset wireless.default_radio0.mode 'sta'
 328   uset wireless.default_radio0.bssid ${rclientbssid[$rmac]}
 329   # todo: look into whether 5g network is available.
 330   uset wireless.default_radio0.key ${rclientkey[$rmac]}
 331   uset wireless.radio0.disabled false
 332   uset wireless.radio1.disabled true
 333 else
 334   # defaults, just reseting in case client config ran
 335   uset wireless.default_radio0.network lan
 336   uset wireless.default_radio0.mode ap
 337   for x in 0 1; do
 338     uset wireless.default_radio$x.ssid "$ssid"
 339     uset wireless.default_radio$x.key $key
 340     uset wireless.default_radio$x.encryption psk2
 341     if [[ $mac ]]; then
 342       uset wireless.default_radio$x.macaddr $macpre$((macsuf + 2*x))
 343     fi
 344     # secondary device has wireless disabled
 345     uset wireless.radio$x.disabled $dev2
 346   done
 347 fi
 348
 349
 350
 351
 352
 353 # usb, screen, relay are for libremanage
 354 # rsync is for brc
 355 #
 356 # relay package temporarily disabled
 357 # /root/relay_1.0-1_mips_24kc.ipk
 358 v pi kmod-usb-storage block-mount kmod-fs-ext4 nfs-kernel-server \
 359   tcpdump openvpn-openssl adblock libusb-compat \
 360   screen kmod-usb-serial-cp210x kmod-usb-serial-ftdi rsync\
 361   unbound-daemon-heavy unbound-checkconf
 362
 363 cat >/etc/libremanage.conf <<EOF
 364 ${libremanage_host}_type=switch
 365 ${libremanage_host}_channel=1
 366 EOF
 367
 368
 369
 370 v /etc/init.d/fstab enable ||:
 371
 372 # rebooting makes mounting work, but comparing lsmod,
 373 # i'm guessing this will too. todo, test it.
 374 # 255 == module already loaded
 375 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
 376
 377 # for archlike pxe. The default settings in the installer expect to find
 378 # the NFS at one of these dirs
 379 mkdir -p /run/archiso/bootmnt
 380 mkdir -p /run/parabolaiso/bootmnt
 381
 382 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
 383 # that is the case after running this or rebooting.
 384 # wiki says safe to do in case of fstab changes:
 385
 386 ## ian: usb broke on old router. if that happens, can just comment this to disable problems
 387 # echo | cedit /etc/config/fstab ||:
 388 cedit /etc/config/fstab <<EOF || { v block umount; v block mount; }
 389 config global automount
 390       option from_fstab 1
 391       option anon_mount 1
 392
 393 config mount
 394 # /overlay is an / overlay mount for installing extra packages, etc.
 395 # https://openwrt.org/docs/guide-user/additional-software/extroot_configuration
 396       option target     /mnt/usb
 397 #      option target    /overlay
 398       option device     /dev/sda1
 399       option fstype     ext4
 400       option options    rw,async,noatime,nodiratime
 401       option enabled    0
 402 EOF
 403
 404
 405 # ian: disabled because afaik I don't need it, no benefit.
 406 # config global autoswap
 407 #       option from_fstab 1
 408 #       option anon_swap 1
 409
 410 # config swap
 411 #       option device   /dev/sda1
 412 #       option enabled  1
 413
 414
 415
 416
 417 # exportfs -ra wont cut it when its the same path, but now a bind mount
 418 # todo: restart nfs when nfs is enabled?
 419 #cedit /etc/exports <<EOF || v /etc/init.d/nfsd restart ||:
 420 cedit /etc/exports <<EOF ||:
 421 /mnt/usb  $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 422 # for arch pxe
 423 /run/archiso/bootmnt    $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 424 /run/parabolaiso/bootmnt        $lan/$cidr(rw,no_root_squash,insecure,sync,no_subtree_check)
 425 EOF
 426
 427
 428 # todo: enable nfs when we need it only.
 429 # v /etc/init.d/portmap start
 430 # v /etc/init.d/nfsd start
 431 # v /etc/init.d/portmap enable
 432 # v /etc/init.d/nfsd enable
 433
 434
 435
 436
 437
 438
 439
 440
 441 ########## openvpn exampl
 442 ########## missing firewall settings for routing lan
 443 ########## traffic
 444 # v /etc/init.d/openvpn start
 445 # v /etc/init.d/openvpn enable
 446
 447 # # from https://wiki.openwrt.org/doc/uci/firewall
 448 # # todo: not sure if /etc/init.d/network needs restarting.
 449 # # I did, and I had to restart the vpn afterwards.
 450 # # This maps a uci interface to a real interface which is
 451 # # managed outside of uci.
 452 # cedit /etc/config/network <<'EOF' ||:
 453 # config interface 'tun0'
 454 #         option ifname 'tun0'
 455 #         option proto 'none'
 456 # EOF
 457 # cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 458 # config openvpn my_client_config
 459 #         option enabled 1
 460 #         option config /etc/openvpn/client.conf
 461 # EOF
 462
 463 wgip4=10.3.0.1/24
 464 wgip6=fdfd::1/64
 465 wgport=26000
 466
 467 network_restart=false
 468 if $client; then
 469   cedit wific /etc/config/network <<EOF || network_restart=true
 470 # https://openwrt.org/docs/guide-user/network/wifi/connect_client_wifi
 471 config interface 'wwan'
 472  option proto 'dhcp'
 473 EOF
 474 fi
 475
 476 cedit /etc/config/network <<EOF || network_restart=true
 477 config 'route' 'transmission'
 478  option 'interface' 'lan'
 479  option 'target' '10.173.0.0'
 480  option 'netmask' '255.255.0.0'
 481  option 'gateway' '$l.3'
 482
 483 option interface 'wg0'
 484  option proto 'wireguard'
 485  option private_key '$(cat /root/wg.key)'
 486  option listen_port $wgport
 487  list addresses '10.3.0.1/24'
 488  list addresses 'fdfd::1/64'
 489
 490 # tp
 491 config wireguard_wg0 'wgclient'
 492  option public_key '3q+WJGrm85r59NgeXOIvppxoW4ux/+koSw6Fee1c1TI='
 493  option preshared_key '$(cat /root/wg.psk)'
 494  list allowed_ips '10.3.0.2/24'
 495  list allowed_ips 'fdfd::2/64'
 496 EOF
 497
 498 if $network_restart; then
 499   v /etc/init.d/network reload
 500 fi
 501
 502 firewall-cedit() {
 503
 504   if $client; then
 505     cedit wific /etc/config/firewall <<EOF
 506 config zone
 507  option name    wwan
 508  option input    REJECT
 509  option output   ACCEPT
 510  option forward  REJECT
 511  option masq     1
 512  option mtu_fix  1
 513  option network  wwan
 514 EOF
 515   fi
 516
 517   case $hostname in
 518     wrt)
 519       cedit host /etc/config/firewall <<EOF
 520 config redirect
 521  option name ssh
 522  option src              wan
 523  option src_dport        22
 524  option dest_ip          $l.3
 525  option dest             lan
 526 EOF
 527       ;;
 528     cmc)
 529       cedit host /etc/config/firewall <<EOF
 530 config redirect
 531  option name ssh
 532  option src              wan
 533  option src_dport        22
 534  option dest_ip          $l.2
 535  option dest             lan
 536 EOF
 537       ;;
 538   esac
 539
 540   cedit /etc/config/firewall <<EOF
 541 ## begin no external dns for ziva
 542 config rule
 543  option src  lan
 544  option src_ip   10.2.0.23
 545  option dest_port 53
 546  option dest  wan
 547  option target REJECT
 548
 549
 550 config rule
 551  option src wan
 552  option dest_ip   10.2.0.23
 553  option src_port 53
 554  option dest  lan
 555  option target REJECT
 556
 557
 558 config rule
 559  option src  lan
 560  option src_ip   10.2.0.31
 561  option dest_port 53
 562  option dest  wan
 563  option target REJECT
 564
 565
 566 config rule
 567  option src wan
 568  option dest_ip   10.2.0.31
 569  option src_port 53
 570  option dest  lan
 571  option target REJECT
 572
 573
 574 config rule
 575  option src  lan
 576  option src_ip   10.2.0.32
 577  option dest_port 53
 578  option dest  wan
 579  option target REJECT
 580
 581
 582 config rule
 583  option src wan
 584  option dest_ip   10.2.0.32
 585  option src_port 53
 586  option dest  lan
 587  option target REJECT
 588 ## end no external dns for ziva
 589
 590
 591 config rule
 592  option src              wan
 593  option target           ACCEPT
 594  option dest_port        22
 595
 596 config redirect
 597  option name sshkd
 598  option src              wan
 599  option src_dport        2202
 600  option dest_port        22
 601  option dest_ip          $l.2
 602  option dest             lan
 603 config rule
 604  option src              wan
 605  option target           ACCEPT
 606  option dest_port        2202
 607
 608
 609 config redirect
 610  option name sshkdalt
 611  option src              wan
 612  option src_dport        8989
 613  option dest_port        8989
 614  option dest_ip          $l.2
 615  option dest             lan
 616 config rule
 617  option src              wan
 618  option target           ACCEPT
 619  option dest_port        8989
 620
 621
 622 config redirect
 623  option name sshx2
 624  option src              wan
 625  option src_dport        2205
 626  option dest_port        22
 627  option dest_ip          $l.5
 628  option dest             lan
 629 config rule
 630  option src              wan
 631  option target           ACCEPT
 632  option dest_port        2205
 633
 634 config redirect
 635  option name sshx3
 636  option src              wan
 637  option src_dport        2207
 638  option dest_port        22
 639  option dest_ip          $l.7
 640  option dest             lan
 641 config rule
 642  option src              wan
 643  option target           ACCEPT
 644  option dest_port        2207
 645
 646 config redirect
 647  option name sshtp
 648  option src              wan
 649  option src_dport        2208
 650  option dest_port        22
 651  option dest_ip          $l.8
 652  option dest             lan
 653 config rule
 654  option src              wan
 655  option target           ACCEPT
 656  option dest_port        2208
 657
 658 config redirect
 659  option name sshbb8
 660  option src              wan
 661  option src_dport        2209
 662  option dest_port        22
 663  option dest_ip          $l.9
 664  option dest             lan
 665 config rule
 666  option src              wan
 667  option target           ACCEPT
 668  option dest_port        2209
 669
 670 config redirect
 671  option name icecast
 672  option src              wan
 673  option src_dport        8000
 674  option dest_port        8000
 675  option dest_ip          $l.2
 676  option dest             lan
 677 config rule
 678  option src              wan
 679  option target           ACCEPT
 680  option dest_port        8000
 681
 682 config rule
 683  option name sshwrt
 684  option src              wan
 685  option target           ACCEPT
 686  option dest_port        2220
 687
 688 config rule
 689  option name wg
 690  option src              wan
 691  option target           ACCEPT
 692  option dest_port        $wgport
 693  option proto            udp
 694
 695
 696 config redirect
 697  option name httpkd
 698  option src              wan
 699  option src_dport        80
 700  option dest             lan
 701  option dest_ip          $l.2
 702  option proto            tcp
 703 config rule
 704  option src              wan
 705  option target           ACCEPT
 706  option dest_port        80
 707  option proto            tcp
 708
 709 config redirect
 710  option name httpskd
 711  option src              wan
 712  option src_dport        443
 713  option dest             lan
 714  option dest_ip          $l.2
 715  option proto            tcp
 716 config rule
 717  option src              wan
 718  option target           ACCEPT
 719  option dest_port        443
 720  option proto            tcp
 721
 722 config redirect
 723 option name httpskd8448
 724  option src              wan
 725  option src_dport        8448
 726  option dest             lan
 727  option dest_ip          $l.2
 728  option proto            tcp
 729 config rule
 730  option src              wan
 731  option target           ACCEPT
 732  option dest_port        8448
 733  option proto            tcp
 734
 735
 736 config redirect
 737  option name syncthing
 738  option src              wan
 739  option src_dport        22001
 740  option dest_ip          $l.8
 741  option dest             lan
 742 config rule
 743  option src              wan
 744  option target           ACCEPT
 745  option dest_port        22001
 746
 747
 748 config rule
 749  option name ssh-ipv6
 750  option src wan
 751  option dest lan
 752  # note, using mac transform, we could allow all traffic to a host like this,
 753  # replacing 1 as appropriate
 754  #option dest_ip ::111:11ff:fe11:1111/::ffff:ffff:ffff:ffff
 755  option dest_port 22
 756  option target ACCEPT
 757  option family ipv6
 758
 759 config rule
 760  option name http-ipv6
 761  option src wan
 762  option dest lan
 763  option dest_port 80
 764  option target ACCEPT
 765  option family ipv6
 766
 767 config rule
 768  option name https-ipv6
 769  option src wan
 770  option dest lan
 771  option dest_port 443
 772  option target ACCEPT
 773  option family ipv6
 774
 775 config rule
 776  option name node-exporter
 777  option src wan
 778  option dest lan
 779  option dest_port 9101
 780  option target ACCEPT
 781  option family ipv6
 782
 783 config rule
 784  option name mail587-ipv6
 785  option src wan
 786  option dest lan
 787  option dest_port 587
 788  option target ACCEPT
 789  option family ipv6
 790
 791 # include a file with users custom iptables rules
 792 config include
 793         option path /etc/firewall.user
 794         option type 'restore'
 795         option family 'ipv4'
 796
 797
 798 EOF
 799 }
 800 firewall-cedit || firewall_restart=true
 801
 802 # not using wireguard for now
 803 # if ! uci get firewall.@zone[1].network | grep wg0 &>/dev/null; then
 804 #   # cant mix cedit plus uci
 805 #   echo | cedit /etc/config/firewall ||:
 806 #   uci add_list firewall.@zone[1].network=wg0
 807 #   uci commit firewall
 808 #   firewall-cedit ||:
 809 #   firewall_restart=true
 810 # fi
 811
 812
 813
 814 cedit /etc/hosts <<EOF
 815 127.0.1.1 $hostname
 816 EOF
 817 # not sure this case statement is needed
 818 case $hostname in
 819   cmc)
 820     cedit host /etc/hosts <<EOF
 821 $l.1 $hostname
 822 # 127.0.0.1 www.youtube.com
 823 # 127.0.0.1 googlevideo.com
 824 # 127.0.0.1 youtu.be
 825 # 127.0.0.1 youtube-nocookie.com
 826 # 127.0.0.1 youtube.com
 827 # 127.0.0.1 youtube.googleapis.com
 828 # 127.0.0.1 youtubei.googleapis.com
 829 # 127.0.0.1 ytimg.com
 830 # 127.0.0.1 ytimg.l.google.com
 831 EOF
 832     ;;
 833 esac
 834
 835
 836 #mail_host=$(grep -F mail.iankelling.org /etc/hosts | awk '{print $1}')
 837 # if [[ $mail_host ]]; then
 838 #     sed -i '/^$mail_host/a mail.iankelling.org' /etc/hosts
 839 # fi
 840
 841
 842 uset dhcp.@dnsmasq[0].domain b8.nz
 843 uset system.@system[0].hostname $hostname
 844 uset dhcp.@dnsmasq[0].local
 845
 846 # uci doesnt seem to have a way to set an empty value,
 847 # if you delete it, it goes back to the default. this seems
 848 # to be a decent workaround.
 849 # todo: setup /etc/resolv.conf to point to 127.0.0.1
 850 uset dhcp.@dnsmasq[0].resolvfile /dev/null
 851
 852 # if dnsmasq happens to not send out a dns server,
 853 # odhcpd will send one out like this:
 854 # NetworkManager[953]: <info>  [1614982580.5192] dhcp6 (wlan0): option dhcp6_name_servers   => 'fd58:5801:8e02::1'
 855 # but i dont want ipv6 dns, just keep it simple to ipv4.
 856 # I know my isp doesnt have ipv6 right now,
 857 # so just stop this thing.
 858 # note: tried this, it didn't do anything:
 859 # uset dhcp.@odhcpd[0].dns 10.2.0.1
 860 /etc/init.d/odhcpd stop
 861 /etc/init.d/odhcpd disable
 862 # todo: make the above conditional on which server this is.
 863
 864 # avoid errors in log. current isp doesnt have ipv6
 865 uset unbound.@unbound[0].protocol ip4_only
 866
 867 # todo: im not sure all these are needed, but they all look
 868 # like good options.
 869 # https://blog.cloudflare.com/dns-over-tls-for-openwrt/
 870 # https://gist.github.com/vqiu/7b32d3a19a7a09d32e108d998de166c2
 871 #https://blog.thestateofme.com/2018/04/04/howto-secure-your-dns-with-a-raspberry-pi-unbound-and-cloudflare-1-1-1-1/
 872 #
 873 # # i found that the zone example was having no effect on the config
 874 # # here:
 875 # https://github.com/openwrt/packages/blob/openwrt-19.07/net/unbound/files/README.md
 876 #
 877 # # todo: unbound-control, i'm not sure what the purpose of that thing is, some
 878 # # kind of coordination with dhcp of dnsmasq, but what?
 879 #
 880 # note: for debugging, edit /etc/init.d/unbound, change
 881 # procd_set_param command $PROG -d -c $UB_TOTAL_CONF
 882 # to:
 883 # procd_set_param command $PROG -vvv -d -c $UB_TOTAL_CONF
 884
 885 {
 886   cat <<'EOF'
 887 do-tcp: yes
 888 prefetch: yes
 889 qname-minimisation: yes
 890 rrset-roundrobin: yes
 891 use-caps-for-id: yes
 892 do-ip6: no
 893 private-domain: b8.nz
 894 local-zone: "10.in-addr.arpa." transparent
 895 access-control-view: 10.2.0.31/32 "youtube"
 896 EOF
 897
 898   if $zblock; then
 899     cat <<'EOF'
 900 # amy, amyw, samsungtab
 901 access-control-view: 10.2.0.8/32 "youtube"
 902 access-control-view: 10.2.0.23/32 "youtube"
 903 access-control-view: 10.2.0.32/32 "youtube"
 904 EOF
 905   fi
 906 } | cedit /etc/unbound/unbound_srv.conf  || restart_unbound=true
 907
 908
 909 # dns based blocking vs ip based. with ip, same
 910 # server can have multiple domains. in dns,
 911 # you have to make sure clients to use the local dns.
 912 # https dns will need to be blocked by ip in
 913 # order to be comprehensive
 914
 915 cedit /etc/unbound/unbound_ext.conf <<'EOF' || restart_unbound=true
 916 local-data-ptr: "10.2.0.1 cmc.b8.nz"
 917 local-data-ptr: "10.2.0.2 kd.b8.nz"
 918 local-data-ptr: "10.2.0.3 sy.b8.nz"
 919 local-data-ptr: "10.2.0.4 wrt2.b8.nz"
 920 local-data-ptr: "10.2.0.5 x2.b8.nz"
 921 local-data-ptr: "10.2.0.6 x2w.b8.nz"
 922 local-data-ptr: "10.2.0.7 syw.b8.nz"
 923 local-data-ptr: "10.2.0.8 amy.b8.nz"
 924 local-data-ptr: "10.2.0.9 bb8.b8.nz"
 925 local-data-ptr: "10.2.0.12 demohost.b8.nz"
 926 local-data-ptr: "10.2.0.14 wrt3.b8.nz"
 927 local-data-ptr: "10.2.0.19 brother.b8.nz"
 928 local-data-ptr: "10.2.0.23 amyw.b8.nz"
 929 local-data-ptr: "10.2.0.25 hp.b8.nz"
 930 local-data-ptr: "10.2.0.31 amazontab.b8.nz"
 931 local-data-ptr: "10.2.0.32 samsungtab.b8.nz"
 932 local-data-ptr: "10.173.0.2 transmission.b8.nz"
 933 local-data-ptr: "10.173.8.1 defaultnn.b8.nz"
 934 local-data-ptr: "10.173.8.2 nn.b8.nz"
 935
 936 forward-zone:
 937   name: "."
 938 # https://developers.cloudflare.com/1.1.1.1/1.1.1.1-for-families/setup-instructions/dns-over-https
 939   forward-addr: 1.1.1.3@853#family.cloudflare-dns.com
 940   forward-addr: 1.0.0.3@853#family.cloudflare-dns.com
 941   forward-ssl-upstream: yes
 942   forward-first: no
 943
 944 view:
 945   name: "youtube"
 946   local-zone: "googlevideo.com." refuse
 947   local-zone: "video.google.com." refuse
 948   local-zone: "youtu.be." refuse
 949   local-zone: "youtube-nocookie.com." refuse
 950   local-zone: "youtube-ui.l.google.com." refuse
 951   local-zone: "youtube.com." refuse
 952   local-zone: "youtube.googleapis.com." refuse
 953   local-zone: "youtubeeducation.com." refuse
 954   local-zone: "youtubei.googleapis.com." refuse
 955   local-zone: "yt3.ggpht.com." refuse
 956   local-zone: "youtubekids.com." refuse
 957   # try global if no match in view
 958   view-first: yes
 959 EOF
 960
 961
 962 if $restart_unbound; then
 963   /etc/init.d/unbound restart
 964   if ! unbound-checkconf; then
 965     echo $0: error: unbound-checkconf failed >&2
 966     exit 1
 967   fi
 968 fi
 969
 970
 971 # disabled for now. i want to selectively enable it
 972 # for specific hosts.
 973 if [[ $(uci get adblock.global.adb_enabled) != 0 ]]; then
 974   v uci set adblock.global.adb_enabled=0
 975   uci commit adblock
 976   /etc/init.d/adblock restart
 977 fi
 978 # https://github.com/openwrt/packages/tree/master/net/adblock/files
 979 cat >/etc/crontabs/root <<'EOF'
 980 0 06 * * *    /etc/init.d/adblock reload
 981 EOF
 982
 983
 984 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
 985
 986 # sometimes /mnt/usb fails, cuz it's just a flash drive,
 987 # so make sure we have this dir or else dnsmasq will fail
 988 # to start.
 989 mkdir -p /mnt/usb/tftpboot
 990 cedit /etc/dnsmasq.conf  <<EOF || dnsmasq_restart=true
 991 # no dns
 992 port=0
 993 server=/b8.nz/#
 994 ptr-record=1.0.2.10.in-addr.arpa.,cmc.b8.nz
 995
 996 # https://ret2got.wordpress.com/2018/01/19/how-your-ethereum-can-be-stolen-using-dns-rebinding/
 997 stop-dns-rebind
 998 rebind-domain-ok=b8.nz
 999
1000 # This says the ip of dns server.
1001 # It is default if dnsmasq is doing dns, otherwise, we have to specify it.
1002 # To see it in action, I ran this from a client machine:
1003 # sudo dhcpcd -o domain_name_servers -T
1004 dhcp-option=6,$l.1
1005
1006
1007
1008 # results from googling around dnsmasq optimizations
1009 # about 50k in memory. router has 62 megs.
1010 # in a browsing session, I probably won't ever do 5000 lookups
1011 # before the ttl expiration or whatever does expiration.
1012 cache-size=10000
1013
1014 # ask all servers, use the one which responds first.
1015 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
1016 all-servers
1017
1018 # namebench benchmarks dns servers. google's dns was only
1019 # slightly less fast than some others, and I trust it more
1020 # to give accurate results, stay relatively fast, and
1021 # not do anythin too malicious, so just use that.
1022 # download namebench and run it like this:
1023 # 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
1024 # google
1025 server=1.1.1.3
1026 server=1.0.0.3
1027 server=2606:4700:4700::1113
1028 server=2606:4700:4700::1003
1029
1030 server=10.2.0.1
1031 # server=8.8.4.4
1032 # server=8.8.8.8
1033 # server=2001:4860:4860::8888
1034 # server=2001:4860:4860::8844
1035
1036
1037 # to fixup existin ips, on the client you can do
1038 # sudo dhclient -r; sudo dhclient <interface-name>
1039 # or on cmc,
1040 # /etc/init.d/dnsmasq stop
1041 # vi /tmp/dhcp.leases
1042 # /etc/init.d/dnsmasq start
1043
1044
1045 # default dhcp range is 100-150
1046 # bottom port,  iPXE (PCI 03:00.0) in seabios boot menu
1047 dhcp-host=c8:60:00:31:6b:75,set:kd,$l.2,kd
1048 dhcp-host=94:05:bb:1e:2c:2e,set:sy,$l.3,sy
1049 # top port, iPXE (PCI 04:00.0) in seabios boot menu
1050 #dhcp-host=c8:60:00:2b:15:07,set:kd,$l.2,kd
1051 # 4 is reserved for a staticly configured host wrt2
1052 # old x2 with bad fan
1053 #dhcp-host=00:1f:16:16:39:24,set:x2,$l.5,x2
1054 dhcp-host=f0:de:f1:81:ec:88,set:x2,$l.5,x2
1055 dhcp-host=c4:8e:8f:44:f5:63,set:x2w,$l.6,x2w
1056 dhcp-host=34:7d:f6:ed:ec:07,set:syw,$l.7,syw
1057 dhcp-host=80:fa:5b:1c:6e:cf,set:amy,$l.8,amy
1058 # This is so fai can have an explicit name to use for testing,
1059 # or else any random machine which did a pxe boot would get
1060 # reformatted. The mac is from doing a virt-install, cancelling it,
1061 # and copying the generated mac, so it should be randomish.
1062 dhcp-host=52:54:00:9c:ef:ad,set:demohost,$l.12,demohost
1063 dhcp-host=62:03:cb:a8:3e:a3,set:trp,$1.13,trp
1064 # 14 = wrt3
1065 dhcp-host=00:1f:16:14:01:d8,set:x3,$l.18,x3
1066 # BRN001BA98CA823 in dhcp logs
1067 dhcp-host=00:1b:a9:8c:a8:23,set:brother,$l.19,brother
1068
1069 dhcp-host=00:26:b6:f7:d4:d8,set:amyw,$l.23,amyw
1070 dhcp-host=9a:c6:52:6f:ce:7c,set:onep9,$l.24,onep9
1071 dhcp-host=38:63:bb:07:5a:f9,set:hp,$l.25,hp
1072 dhcp-host=00:26:b6:f6:0f:e9,set:frodow,$l.28,frodow
1073 dhcp-host=6c:56:97:88:7b:74,set:amazontab,$l.31,amazontab
1074 dhcp-host=0a:8a:9b:cf:b5:ec,set:samsungtab,$l.32,samsungtab
1075
1076
1077
1078 # faiserver vm
1079 dhcp-host=52:54:00:56:09:f9,set:faiserver,$l.15,faiserver
1080
1081 # This is the ip it picks by default if dhcp fails,
1082 # so might as well use it.
1083 # hostname is the name it uses according to telnet
1084 dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,$l.251,switch9429ca
1085
1086 # template
1087 # dhcp-host=,$l.,
1088
1089 # Just leave the tftp server up even if we aren't doing pxe boot.
1090 # It has no sensitive info.
1091 enable-tftp=br-lan
1092 tftp-root=/mnt/usb/tftpboot
1093 dhcp-optsfile=/etc/dnsmasq-dhcpopts.conf
1094
1095 #log-queries=extra
1096 EOF
1097
1098
1099 if $dnsmasq_restart && ! $dev2; then
1100   # todo: can our ptr records be put in /etc/hosts?
1101   # eg: user normal /etc/hosts records, and they wont be used for A resolution
1102   # due to the other settings, but will be used for ptr? then maybe
1103   # we dont have to restart dnsmasq for a dns update?
1104   #
1105   # interesing link:
1106   # https://www.redpill-linpro.com/techblog/2019/08/27/evaluating-local-dnssec-validators.html#toggling-dnssec-validation-1
1107   # we could turn on dnssec validation when wrt gets dnsmasq > 2.80. currently at 2.80.
1108   # also we can turn off dnssec in systemd-resolved if we know the router is doing it.
1109   #
1110   # Also, reload of dnsmasq seems to break things, wifi
1111   # clients were not getting internet connectivity.
1112
1113   v /etc/init.d/dnsmasq restart
1114 fi
1115
1116 if $firewall_restart; then
1117   v /etc/init.d/firewall restart
1118 fi
1119
1120 # this may just restart the network and take care of the network_restart below.
1121 if $wireless_restart; then
1122   v wifi
1123 fi
1124
1125 # todo: we should catch errors and still run this if needed
1126 if $network_restart; then
1127   reboot
1128 fi
1129
1130 exit 0