applications/luci-ffwizard-leipzig/luasrc/model/cbi/ffwizard.lua

   1 --[[
   2 LuCI - Lua Configuration Interface
   3
   4 Copyright 2008 Steven Barth <steven@midlink.org>
   5 Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
   6
   7 Licensed under the Apache License, Version 2.0 (the "License");
   8 you may not use this file except in compliance with the License.
   9 You may obtain a copy of the License at
  10
  11 http://www.apache.org/licenses/LICENSE-2.0
  12
  13 $Id$
  14
  15 ]]--
  16
  17
  18 local uci = require "luci.model.uci".cursor()
  19 local tools = require "luci.tools.ffwizard"
  20 local util = require "luci.util"
  21 local sys = require "luci.sys"
  22
  23
  24 -------------------- View --------------------
  25 f = SimpleForm("ffwizward", "Freifunkassistent",
  26  "Dieser Assistent unterstüzt bei der Einrichtung des Routers für das Freifunknetz.")
  27
  28
  29 dev = f:field(ListValue, "device", "WLAN-Gerät")
  30 uci:foreach("wireless", "wifi-device",
  31         function(section)
  32                 dev:value(section[".name"])
  33         end)
  34
  35
  36 main = f:field(Flag, "wifi", "Freifunkzugang einrichten")
  37
  38 net = f:field(Value, "net", "Freifunknetz", "1. Teil der IP-Adresse")
  39 net.rmempty = true
  40 net:depends("wifi", "1")
  41 uci:foreach("freifunk", "community", function(s)
  42         net:value(s[".name"], "%s (%s)" % {s.name, s.prefix})
  43 end)
  44
  45 function net.cfgvalue(self, section)
  46         return uci:get("freifunk", "wizard", "net")
  47 end
  48 function net.write(self, section, value)
  49         uci:set("freifunk", "wizard", "net", value)
  50         uci:save("freifunk")
  51 end
  52
  53
  54 subnet = f:field(Value, "subnet", "Subnetz (Projekt)", "2. Teil der IP-Adresse")
  55 subnet.rmempty = true
  56 subnet:depends("wifi", "1")
  57 function subnet.cfgvalue(self, section)
  58         return uci:get("freifunk", "wizard", "subnet")
  59 end
  60 function subnet.write(self, section, value)
  61         uci:set("freifunk", "wizard", "subnet", value)
  62         uci:save("freifunk")
  63 end
  64
  65 node = f:field(Value, "node", "Knoten", "3. Teil der IP-Adresse")
  66 node.rmempty = true
  67 node:depends("wifi", "1")
  68 for i=1, 51 do
  69         node:value(i)
  70 end
  71 function node.cfgvalue(self, section)
  72         return uci:get("freifunk", "wizard", "node")
  73 end
  74 function node.write(self, section, value)
  75         uci:set("freifunk", "wizard", "node", value)
  76         uci:save("freifunk")
  77 end
  78
  79 client = f:field(Flag, "client", "WLAN-DHCP anbieten")
  80 client:depends("wifi", "1")
  81 client.rmempty = true
  82
  83
  84 olsr = f:field(Flag, "olsr", "OLSR einrichten")
  85 olsr.rmempty = true
  86
  87 share = f:field(Flag, "sharenet", "Eigenen Internetzugang freigeben")
  88 share.rmempty = true
  89
  90
  91
  92 -------------------- Control --------------------
  93 function f.handle(self, state, data)
  94         if state == FORM_VALID then
  95                 luci.http.redirect(luci.dispatcher.build_url("admin", "uci", "changes"))
  96                 return false
  97         elseif state == FORM_INVALID then
  98                 self.errmessage = "Ungültige Eingabe: Bitte die Formularfelder auf Fehler prüfen."
  99         end
 100         return true
 101 end
 102
 103 local function _strip_internals(tbl)
 104         tbl = tbl or {}
 105         for k, v in pairs(tbl) do
 106                 if k:sub(1, 1) == "." then
 107                         tbl[k] = nil
 108                 end
 109         end
 110         return tbl
 111 end
 112
 113 -- Configure Freifunk checked
 114 function main.write(self, section, value)
 115         if value == "0" then
 116                 return
 117         end
 118
 119         local device = dev:formvalue(section)
 120         local community, external
 121
 122         -- Collect IP-Address
 123         local inet = net:formvalue(section)
 124         local isubnet = subnet:formvalue(section)
 125         local inode = node:formvalue(section)
 126
 127         -- Invalidate fields
 128         if not inet then
 129                 net.tag_missing[section] = true
 130         else
 131                 community = inet
 132                 external  = uci:get("freifunk", community, "external") or ""
 133                 inet = uci:get("freifunk", community, "prefix") or inet
 134         end
 135         if not isubnet then
 136                 subnet.tag_missing[section] = true
 137         end
 138         if not inode then
 139                 node.tag_missing[section] = true
 140         end
 141
 142         if not inet or not isubnet or not inode then
 143                 return
 144         end
 145
 146         local ip = "%s.%s.%s" % {inet, isubnet, inode}
 147
 148
 149         -- Cleanup
 150         tools.wifi_delete_ifaces(device)
 151         tools.network_remove_interface(device)
 152         tools.firewall_zone_remove_interface("freifunk", device)
 153
 154         -- Tune community settings
 155         if community and uci:get("freifunk", community) then
 156                 uci:tset("freifunk", "community", uci:get_all("freifunk", community))
 157         end
 158
 159         -- Tune wifi device
 160         local devconfig = uci:get_all("freifunk", "wifi_device")
 161         util.update(devconfig, uci:get_all(external, "wifi_device") or {})
 162         uci:tset("wireless", device, devconfig)
 163
 164         -- Create wifi iface
 165         local ifconfig = uci:get_all("freifunk", "wifi_iface")
 166         util.update(ifconfig, uci:get_all(external, "wifi_iface") or {})
 167         ifconfig.device = device
 168         ifconfig.network = device
 169         ifconfig.ssid = uci:get("freifunk", community, "ssid")
 170         uci:section("wireless", "wifi-iface", nil, ifconfig)
 171
 172         -- Save wifi
 173         uci:save("wireless")
 174
 175         -- Create firewall zone and add default rules (first time)
 176         local newzone = tools.firewall_create_zone("freifunk", "REJECT", "ACCEPT", "REJECT", true)
 177         if newzone then
 178                 uci:foreach("freifunk", "fw_forwarding", function(section)
 179                         uci:section("firewall", "forwarding", nil, section)
 180                 end)
 181                 uci:foreach(external, "fw_forwarding", function(section)
 182                         uci:section("firewall", "forwarding", nil, section)
 183                 end)
 184
 185                 uci:foreach("freifunk", "fw_rule", function(section)
 186                         uci:section("firewall", "rule", nil, section)
 187                 end)
 188                 uci:foreach(external, "fw_rule", function(section)
 189                         uci:section("firewall", "rule", nil, section)
 190                 end)
 191         end
 192
 193         -- Enforce firewall include
 194         local has_include = false
 195         uci:foreach("firewall", "include",
 196                 function(section)
 197                         if section.path == "/etc/firewall.freifunk" then
 198                                 has_include = true
 199                         end
 200                 end)
 201
 202         if not has_include then
 203                 uci:section("firewall", "include", nil,
 204                         { path = "/etc/firewall.freifunk" })
 205         end
 206
 207         -- Allow state: invalid packets
 208         uci:foreach("firewall", "defaults",
 209                 function(section)
 210                         uci:set("firewall", section[".name"], "drop_invalid", "0")
 211                 end)
 212
 213         -- Prepare advanced config
 214         local has_advanced = false
 215         uci:foreach("firewall", "advanced",
 216                 function(section) has_advanced = true end)
 217
 218         if not has_advanced then
 219                 uci:section("firewall", "advanced", nil,
 220                         { tcp_ecn = "0", ip_conntrack_max = "8192", tcp_westwood = "1" })
 221         end
 222
 223         uci:save("firewall")
 224
 225
 226         -- Create network interface
 227         local netconfig = uci:get_all("freifunk", "interface")
 228         util.update(netconfig, uci:get_all(external, "interface") or {})
 229         netconfig.proto = "static"
 230         netconfig.ipaddr = ip
 231         uci:section("network", "interface", device, netconfig)
 232
 233         uci:save("network")
 234
 235         tools.firewall_zone_add_interface("freifunk", device)
 236
 237
 238         -- Set hostname
 239         local new_hostname = ip:gsub("%.", "-")
 240         local old_hostname = sys.hostname()
 241
 242         if old_hostname == "OpenWrt" or old_hostname:match("^%d+-%d+-%d+-%d+$") then
 243                 uci:foreach("system", "system",
 244                         function(s)
 245                                 uci:set("system", s['.name'], "hostname", new_hostname)
 246                         end)
 247
 248                 sys.hostname(new_hostname)
 249                 uci:save("system")
 250         end
 251 end
 252
 253
 254 function olsr.write(self, section, value)
 255         if value == "0" then
 256                 return
 257         end
 258
 259
 260         local device = dev:formvalue(section)
 261
 262         local community = net:formvalue(section)
 263         local external  = community and uci:get("freifunk", community, "external") or ""
 264
 265         -- Delete old interface
 266         uci:delete_all("olsrd", "Interface", {interface=device})
 267
 268         -- Write new interface
 269         local olsrbase = uci:get_all("freifunk", "olsr_interface")
 270         util.update(olsrbase, uci:get_all(external, "olsr_interface") or {})
 271         olsrbase.interface = device
 272         olsrbase.ignore    = "0"
 273         uci:section("olsrd", "Interface", nil, olsrbase)
 274
 275         -- Delete old watchdog settings
 276         uci:delete_all("olsrd", "LoadPlugin", {library="olsrd_watchdog.so.0.1"})
 277
 278         -- Write new watchdog settings
 279         uci:section("olsrd", "LoadPlugin", nil, {
 280                 library  = "olsrd_watchdog.so.0.1",
 281                 file     = "/var/run/olsrd.watchdog",
 282                 interval = "30"
 283         })
 284
 285         -- Import hosts
 286         uci:foreach("dhcp", "dnsmasq", function(s)
 287                 uci:set("dhcp", s[".name"], "addnhosts", "/var/etc/hosts.olsr")
 288         end)
 289
 290         uci:save("olsrd")
 291         uci:save("dhcp")
 292 end
 293
 294
 295 function share.write(self, section, value)
 296         uci:delete_all("firewall", "forwarding", {src="freifunk", dest="wan"})
 297         uci:delete_all("olsrd", "LoadPlugin", {library="olsrd_dyn_gw_plain.so.0.4"})
 298
 299         if value == "1" then
 300                 uci:section("firewall", "forwarding", nil, {src="freifunk", dest="wan"})
 301                 uci:section("olsrd", "LoadPlugin", nil, {library="olsrd_dyn_gw_plain.so.0.4"})
 302         end
 303         uci:save("firewall")
 304         uci:save("olsrd")
 305 end
 306
 307
 308 function client.write(self, section, value)
 309         if value == "0" then
 310                 return
 311         end
 312
 313         local device = dev:formvalue(section)
 314
 315         -- Collect IP-Address
 316         local inet = net:formvalue(section)
 317         local isubnet = subnet:formvalue(section)
 318         local inode = node:formvalue(section)
 319
 320         if not inet or not isubnet or not inode then
 321                 return
 322         end
 323         local community = inet
 324         local external  = community and uci:get("freifunk", community, "external") or ""
 325         inet = uci:get("freifunk", community, "prefix") or inet
 326
 327         local dhcpbeg = 48 + tonumber(inode) * 4
 328         local dclient = "%s.%s.%s" % {inet:gsub("^[0-9]+", "10"), isubnet, dhcpbeg}
 329         local limit = dhcpbeg < 252 and 3 or 2
 330
 331         -- Delete old alias
 332         uci:delete("network", device .. "dhcp")
 333
 334         -- Create alias
 335         local aliasbase = uci:get_all("freifunk", "alias")
 336         util.update(aliasbase, uci:get_all(external, "alias") or {})
 337         aliasbase.interface = device
 338         aliasbase.ipaddr = dclient
 339         aliasbase.proto = "static"
 340         uci:section("network", "alias", device .. "dhcp", aliasbase)
 341         uci:save("network")
 342
 343
 344         -- Create dhcp
 345         local dhcpbase = uci:get_all("freifunk", "dhcp")
 346         util.update(dhcpbase, uci:get_all(external, "dhcp") or {})
 347         dhcpbase.interface = device .. "dhcp"
 348         dhcpbase.start = dhcpbeg
 349         dhcpbase.limit = limit
 350         dhcpbase.force = 1
 351
 352         uci:section("dhcp", "dhcp", device .. "dhcp", dhcpbase)
 353         uci:save("dhcp")
 354
 355         uci:delete_all("firewall", "rule", {
 356                 src="freifunk",
 357                 proto="udp",
 358                 dest_port="53"
 359         })
 360         uci:section("firewall", "rule", nil, {
 361                 src="freifunk",
 362                 proto="udp",
 363                 dest_port="53",
 364                 target="ACCEPT"
 365         })
 366         uci:delete_all("firewall", "rule", {
 367                 src="freifunk",
 368                 proto="udp",
 369                 src_port="68",
 370                 dest_port="67"
 371         })
 372         uci:section("firewall", "rule", nil, {
 373                 src="freifunk",
 374                 proto="udp",
 375                 src_port="68",
 376                 dest_port="67",
 377                 target="ACCEPT"
 378         })
 379         uci:delete_all("firewall", "rule", {
 380                 src="freifunk",
 381                 proto="tcp",
 382                 dest_port="8082",
 383         })
 384         uci:section("firewall", "rule", nil, {
 385                 src="freifunk",
 386                 proto="tcp",
 387                 dest_port="8082",
 388                 target="ACCEPT"
 389         })
 390
 391         uci:save("firewall")
 392
 393         -- Delete old splash
 394         uci:delete_all("luci_splash", "iface", {network=device.."dhcp", zone="freifunk"})
 395
 396         -- Register splash
 397         uci:section("luci_splash", "iface", nil, {network=device.."dhcp", zone="freifunk"})
 398         uci:save("luci_splash")
 399 end
 400
 401 return f