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

   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 x="$(readlink -f "$BASH_SOURCE")"; source "${x%/*}/bash-trace"
  19
  20 pmirror() {
  21     # background: upgrading all packages is not recommended because it
  22     # doesn't go into the firmware. build new firmware if you want
  23     # lots of upgrades.
  24     f=(/tmp/opkg-lists/*)
  25     if ! (( $(date -r $f +%s) + 60*60*24 > $(date +%s) )); then
  26         opkg update
  27     fi
  28 }
  29
  30 pi() {
  31     for x in "$@"; do
  32         if [[ ! $(opkg list-installed "$x") ]]; then
  33             pmirror
  34             opkg install "$@"
  35         fi
  36     done
  37 }
  38
  39 v() {
  40     printf "+ %s\n" "$*"
  41     "$@"
  42 }
  43
  44 cat >/usr/bin/arch-pxe-mount <<'EOFOUTER'
  45 #!/bin/bash
  46 # symlinks are collapsed for nfs mount points, so use a bind mount.
  47 # tried putting this in /etc/config/fstab,
  48 # then doig block mount, it didn't work. This doesn't persist across reboots,
  49 # todo: figure that out
  50 d=/run/archiso/bootmnt
  51 cat > /etc/fstab <<EOF
  52 /mnt/usb/tftpboot $d none bind 0 0
  53 EOF
  54 mount | grep $d &>/dev/null || mount $d
  55 /etc/init.d/nfsd restart
  56 EOFOUTER
  57 chmod +x /usr/bin/arch-pxe-mount
  58
  59 cat >.profile <<'EOF'
  60 # changing login shell emits spam on ssh single commands & scp
  61     # sed -i 's#/bin/ash$#/bin/bash#' /etc/passwd
  62 #https://dev.openwrt.org/ticket/13852
  63 [ "$PS1" = "" ] || {
  64        /bin/bash
  65        exit
  66 }
  67 EOF
  68 v pi kmod-usb-storage block-mount kmod-fs-ext4 nfs-kernel-server \
  69   tcpdump openvpn-openssl
  70
  71
  72
  73 sed -ri "s/option[[:space:]]*encryption[[:space:]]*'?none'?/option encryption psk2\n        option key  pictionary49/" /etc/config/wireless
  74 sed -i '/^[[:space:]]*option disabled/d' /etc/config/wireless
  75 v wifi
  76
  77
  78 v /etc/init.d/fstab enable ||:
  79
  80 # rebooting makes mounting work, but comparing lsmod,
  81 # i'm guessing this will too. todo, test it.
  82 # 255 == module already loaded
  83 for mod in scsi_mod sd_mod; do v modprobe $mod || [[ $? == 255 ]]; done
  84
  85 # for arch pxe. The default settings in the installer expect to find
  86 # the NFS at /run/archiso/bootmnt
  87 mkdir -p /run/archiso/bootmnt
  88
  89 # todo: at some later time, i found /mnt/usb not mounted, watch to see if
  90 # that is the case after running this or rebooting.
  91 # wiki says safe to do in case of fstab changes:
  92 cedit /etc/config/fstab <<'EOF' || { v block umount; v block mount; }
  93 config global automount
  94       option from_fstab 1
  95       option anon_mount 1
  96
  97 config global autoswap
  98       option from_fstab 1
  99       option anon_swap 1
 100
 101 config mount
 102       option target     /mnt/usb
 103       option device     /dev/sda2
 104       option fstype     ext4
 105       option options    rw,async,noatime,nodiratime
 106       option enabled    1
 107       option enabled_fsck 0
 108
 109 config swap
 110       option device     /dev/sda1
 111       option enabled    1
 112
 113 EOF
 114
 115
 116
 117 # exportfs -ra wont cut it when its the same path, but now a bind mount
 118 cedit /etc/exports <<'EOF' || v /etc/init.d/nfsd restart ||:
 119 /mnt/usb  192.168.1.0/255.255.255.0(rw,no_root_squash,insecure,sync,no_subtree_check)
 120 # for arch pxe
 121 /run/archiso/bootmnt    192.168.1.0/255.255.255.0(rw,no_root_squash,insecure,sync,no_subtree_check)
 122 EOF
 123
 124
 125 v /etc/init.d/portmap start
 126 v /etc/init.d/nfsd start
 127 v /etc/init.d/portmap enable
 128 v /etc/init.d/nfsd enable
 129
 130
 131
 132
 133
 134
 135 ######### uci example:#######
 136 # # https://wiki.openwrt.org/doc/uci
 137 # wan_index=$(uci show firewall | sed -rn 's/firewall\.@zone\[([0-9])+\]\.name=wan/\1/p')
 138 # wan="firewall.@zone[$wan_index]"
 139 # if [[ $(uci get firewall.@forwarding[0].dest) != $forward_dest ]]; then
 140 #     # default is wan
 141 #     v uci set firewall.@forwarding[0].dest=$forward_dest
 142 #     uci commit firewall
 143 #     firewall_restart=true
 144 # fi
 145
 146
 147
 148 ########## openvpn exampl
 149 ########## missing firewall settings for routing lan
 150 ########## traffic
 151 # v /etc/init.d/openvpn start
 152 # v /etc/init.d/openvpn enable
 153
 154 # # from https://wiki.openwrt.org/doc/uci/firewall
 155 # # todo: not sure if /etc/init.d/network needs restarting.
 156 # # I did, and I had to restart the vpn afterwards.
 157 # # This maps a uci interface to a real interface which is
 158 # # managed outside of uci.
 159 # v cedit /etc/config/network <<'EOF' ||:
 160 # config interface 'tun0'
 161 #         option ifname 'tun0'
 162 #         option proto 'none'
 163 # EOF
 164 # v cedit /etc/config/openvpn <<'EOF' || v /etc/init.d/openvpn restart
 165 # config openvpn my_client_config
 166 #         option enabled 1
 167 #         option config /etc/openvpn/client.conf
 168 # EOF
 169
 170
 171 v cedit /etc/config/network <<'EOF' || v /etc/init.d/network reload
 172 config 'route' 'transmission'
 173         option 'interface' 'lan'
 174         option 'target' '10.173.0.0'
 175         option 'netmask' '255.255.0.0'
 176         option 'gateway' '192.168.1.2'
 177 EOF
 178
 179 v cedit /etc/config/firewall <<'EOF' || firewall_restart=true
 180 config redirect
 181     option name ssh
 182     option src              wan
 183     option src_dport        22
 184     option dest_ip          192.168.1.2
 185     option dest             lan
 186 config rule
 187     option src              wan
 188     option target           ACCEPT
 189     option dest_port        22
 190
 191 config redirect
 192     option name sshalt
 193     option src              wan
 194     option src_dport        2222
 195     option dest_port        22
 196     option dest_ip          192.168.1.3
 197     option dest             lan
 198 config rule
 199     option src              wan
 200     option target           ACCEPT
 201     option dest_port        2222
 202
 203 config redirect
 204     option src              wan
 205     option src_dport        443
 206     option dest             lan
 207     option dest_ip          192.168.1.2
 208     option proto            tcp
 209 config rule
 210     option src              wan
 211     option target           ACCEPT
 212     option dest_port        443
 213     option proto            tcp
 214
 215 config redirect
 216     option src              wan
 217     option src_dport        1194
 218     option dest             lan
 219     option dest_ip          192.168.1.2
 220     option proto            udp
 221 config rule
 222     option src              wan
 223     option target           ACCEPT
 224     option dest_port        1194
 225     option proto            udp
 226
 227
 228 config redirect
 229     option src              wan
 230     option src_dport        80
 231     option dest             lan
 232     option dest_ip          192.168.1.2
 233     option proto            tcp
 234 config rule
 235     option src              wan
 236     option target           ACCEPT
 237     option dest_port        80
 238     option proto            tcp
 239
 240 config redirect
 241     option name syncthing
 242     option src              wan
 243     option src_dport        22001
 244     option dest_ip          192.168.1.2
 245     option dest             lan
 246 config rule
 247     option src              wan
 248     option target           ACCEPT
 249     option dest_port        22001
 250
 251
 252
 253 EOF
 254
 255
 256
 257
 258 dnsmasq_restart=false
 259 v cedit /etc/hosts <<EOF || dnsmasq_restart=true
 260 127.0.1.1 wrt
 261 192.168.1.1 wrt
 262 192.168.1.2 treetowl b8.nz faiserver
 263 192.168.1.3 frodo
 264 192.168.1.4 htpc
 265 192.168.1.5 x2
 266 192.168.1.6 demohost
 267 #192.168.1.7 faiserver
 268 192.168.1.8 tp
 269 192.168.1.9 n5
 270 72.14.176.105 li
 271 45.33.9.11 lj
 272 138.68.10.24 dopub
 273 # netns creation looks for next free subnet starting at 10.173, but I only
 274 # use one, and I would keep this one as the first created.
 275 10.173.0.2 transmission
 276 EOF
 277
 278
 279 # avoid using the dns servers that my isp tells me about.
 280 if [[ $(uci get dhcp.@dnsmasq[0].resolvfile) ]]; then
 281     # default is '/tmp/resolv.conf.auto', we switch to the dnsmasq default of
 282     # /etc/resolv.conf. not sure why I did this.
 283     v uci delete dhcp.@dnsmasq[0].resolvfile
 284     uci commit dhcp
 285     dnsmasq_restart=true
 286 fi
 287
 288 if [[ $(uci get dhcp.@dnsmasq[0].domain) != b8.nz ]]; then
 289     v uci set dhcp.@dnsmasq[0].domain=b8.nz
 290     uci commit dhcp
 291     dnsmasq_restart=true
 292 fi
 293 if [[ $(uci get dhcp.@dnsmasq[0].local) != b8.nz ]]; then
 294     v uci set dhcp.@dnsmasq[0].local=/b8.nz/
 295     uci commit dhcp
 296     dnsmasq_restart=true
 297 fi
 298
 299 if [[ $(uci get system.@system[0].hostname) != wrt ]]; then
 300     v uci set system.@system[0].hostname=wrt
 301     uci commit system
 302 fi
 303
 304
 305 # useful: http://wiki.openwrt.org/doc/howto/dhcp.dnsmasq
 306
 307 # sometimes /mnt/usb fails, cuz it's just a flash drive,
 308 # so make sure we have this dir or else dnsmasq will fail
 309 # to start.
 310 mkdir -p /mnt/usb/tftpboot
 311 v cedit /etc/dnsmasq.conf <<'EOF' || dnsmasq_restart=true
 312
 313 ############ updating dns servers ###################3
 314
 315
 316 # this says the ip of default gateway and dns server,
 317 # but I think they are unneded and default
 318 #dhcp-option=3,192.168.1.1
 319 #dhcp-option=6,192.168.1.1
 320
 321
 322
 323 # results from googling around dnsmasq optimizations
 324 # about 50k in memory. router has 62 megs.
 325 # in a browsing session, I probably won't ever do 5000 lookups
 326 # before the ttl expiration or whatever does expiration.
 327 cache-size=10000
 328
 329 # ask all servers, use the one which responds first.
 330 # http://ma.ttwagner.com/make-dns-fly-with-dnsmasq-all-servers/
 331 all-servers
 332
 333 # namebench benchmarks dns servers. google's dns was only
 334 # slightly less fast than some others, and I trust it more
 335 # to give accurate results, stay relatively fast, and
 336 # not do anythin too malicious, so just use that.
 337 # download namebench and run it like this:
 338 # 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
 339 # google
 340 server=8.8.4.4
 341 server=8.8.8.8
 342 server=2001:4860:4860::8888
 343 server=2001:4860:4860::8844
 344
 345
 346 # to fixup existin ips, on the client you can do
 347 # sudo dhclient -r; sudo dhclient <interface-name>
 348
 349 # default dhcp range is 100-150
 350 dhcp-host=f4:6d:04:02:ed:66,set:treetowl,192.168.1.2,treetowl
 351 dhcp-host=00:26:18:97:bb:16,set:frodo,192.168.1.3,frodo
 352 dhcp-host=10:78:d2:da:29:22,set:htpc,192.168.1.4,htpc
 353 dhcp-host=00:1f:16:16:39:24,set:x2,192.168.1.5,x2
 354 # this is so fai can have an explicit name to use for testing,
 355 # or else any random machine which did a pxe boot would get
 356 # reformatted. The mac is from doing a virt-install, cancelling it,
 357 # and copying the generated mac, so it should be randomish.
 358 dhcp-host=52:54:00:9c:ef:ad,set:demohost,192.168.1.6,demohost
 359 #dhcp-host=52:54:00:56:09:f9,set:faiserver,192.168.1.7,faiserver
 360 dhcp-host=80:fa:5b:1c:6e:cf,set:tp,192.168.1.8,tp
 361 dhcp-host=c4:43:8f:f2:79:1f,set:n5,192.168.1.9,n5
 362 # this is the ip it picks by default if dhcp fails,
 363 # so might as well use it.
 364 # hostname is the name it uses according to telnet
 365 dhcp-host=b4:75:0e:94:29:ca,set:switch9429ca,192.168.1.251,switch9429ca
 366
 367
 368 # template
 369 # dhcp-host=,192.168.1.,
 370
 371 # Just leave the tftp server up even if we aren't doing pxe boot.
 372 # It has no sensitive info.
 373 enable-tftp=br-lan
 374 tftp-root=/mnt/usb/tftpboot
 375 EOF
 376
 377 if $dnsmasq_restart; then
 378     v /etc/init.d/dnsmasq restart
 379 fi
 380
 381 if $firewall_restart; then
 382     v /etc/init.d/firewall restart
 383 fi