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
  22
  23 -------------------- View --------------------
  24 f = SimpleForm("ffwizward", "Freifunkassistent",
  25  "Dieser Assistent unterstüzt bei der Einrichtung des Routers für das Freifunknetz.")
  26
  27
  28 dev = f:field(ListValue, "device", "WLAN-Gerät")
  29 uci:foreach("wireless", "wifi-device",
  30         function(section)
  31                 dev:value(section[".name"])
  32         end)
  33
  34
  35 main = f:field(Flag, "wifi", "Freifunkzugang einrichten")
  36
  37 net = f:field(Value, "net", "Freifunknetz", "1. Teil der IP-Adresse")
  38 net.rmempty = true
  39 net:depends("wifi", "1")
  40 uci:foreach("freifunk", "community", function(s)
  41         net:value(s[".name"], "%s (%s)" % {s.name, s.prefix})
  42 end)
  43
  44 function net.cfgvalue(self, section)
  45         return uci:get("freifunk", "wizard", "net")
  46 end
  47 function net.write(self, section, value)
  48         uci:set("freifunk", "wizard", "net", value)
  49         uci:save("freifunk")
  50 end
  51
  52
  53 subnet = f:field(Value, "subnet", "Subnetz (Projekt)", "2. Teil der IP-Adresse")
  54 subnet.rmempty = true
  55 subnet:depends("wifi", "1")
  56 function subnet.cfgvalue(self, section)
  57         return uci:get("freifunk", "wizard", "subnet")
  58 end
  59 function subnet.write(self, section, value)
  60         uci:set("freifunk", "wizard", "subnet", value)
  61         uci:save("freifunk")
  62 end
  63
  64 node = f:field(Value, "node", "Knoten", "3. Teil der IP-Adresse")
  65 node.rmempty = true
  66 node:depends("wifi", "1")
  67 for i=1, 51 do
  68         node:value(i)
  69 end
  70 function node.cfgvalue(self, section)
  71         return uci:get("freifunk", "wizard", "node")
  72 end
  73 function node.write(self, section, value)
  74         uci:set("freifunk", "wizard", "node", value)
  75         uci:save("freifunk")
  76 end
  77
  78 client = f:field(Flag, "client", "WLAN-DHCP anbieten")
  79 client:depends("wifi", "1")
  80 client.rmempty = true
  81
  82
  83 olsr = f:field(Flag, "olsr", "OLSR einrichten")
  84 olsr.rmempty = true
  85
  86 share = f:field(Flag, "sharenet", "Eigenen Internetzugang freigeben")
  87 share.rmempty = true
  88
  89
  90
  91 -------------------- Control --------------------
  92 function f.handle(self, state, data)
  93         if state == FORM_VALID then
  94                 luci.http.redirect(luci.dispatcher.build_url("admin", "uci", "changes"))
  95                 return false
  96         elseif state == FORM_INVALID then
  97                 self.errmessage = "Ungültige Eingabe: Bitte die Formularfelder auf Fehler prüfen."
  98         end
  99         return true
 100 end
 101
 102 local function _strip_internals(tbl)
 103         tbl = tbl or {}
 104         for k, v in pairs(tbl) do
 105                 if k:sub(1, 1) == "." then
 106                         tbl[k] = nil
 107                 end
 108         end
 109         return tbl
 110 end
 111
 112 -- Configure Freifunk checked
 113 function main.write(self, section, value)
 114         if value == "0" then
 115                 return
 116         end
 117
 118         local device = dev:formvalue(section)
 119         local community, external
 120
 121         -- Collect IP-Address
 122         local inet = net:formvalue(section)
 123         local isubnet = subnet:formvalue(section)
 124         local inode = node:formvalue(section)
 125
 126         -- Invalidate fields
 127         if not inet then
 128                 net.tag_missing[section] = true
 129         else
 130                 community = inet
 131                 external  = uci:get("freifunk", community, "external") or ""
 132                 inet = uci:get("freifunk", community, "prefix") or inet
 133         end
 134         if not isubnet then
 135                 subnet.tag_missing[section] = true
 136         end
 137         if not inode then
 138                 node.tag_missing[section] = true
 139         end
 140
 141         if not inet or not isubnet or not inode then
 142                 return
 143         end
 144
 145         local ip = "%s.%s.%s" % {inet, isubnet, inode}
 146
 147
 148         -- Cleanup
 149         tools.wifi_delete_ifaces(device)
 150         tools.network_remove_interface(device)
 151         tools.firewall_zone_remove_interface("freifunk", device)
 152
 153         -- Tune community settings
 154         if community and uci:get("freifunk", community) then
 155                 uci:tset("freifunk", "community", uci:get_all("freifunk", community))
 156         end
 157
 158         -- Tune wifi device
 159         local devconfig = uci:get_all("freifunk", "wifi_device")
 160         util.update(devconfig, uci:get_all(external, "wifi_device") or {})
 161         uci:tset("wireless", device, devconfig)
 162
 163         -- Create wifi iface
 164         local ifconfig = uci:get_all("freifunk", "wifi_iface")
 165         util.update(ifconfig, uci:get_all(external, "wifi_iface") or {})
 166         ifconfig.device = device
 167         ifconfig.network = device
 168         ifconfig.ssid = uci:get("freifunk", community, "ssid")
 169         uci:section("wireless", "wifi-iface", nil, ifconfig)
 170
 171         -- Save wifi
 172         uci:save("wireless")
 173
 174         -- Create firewall zone and add default rules (first time)
 175         local newzone = tools.firewall_create_zone("freifunk", "DROP", "ACCEPT", "DROP", true)
 176         if newzone then
 177                 uci:foreach("freifunk", "fw_forwarding", function(section)
 178                         uci:section("firewall", "forwarding", nil, section)
 179                 end)
 180                 uci:foreach(external, "fw_forwarding", function(section)
 181                         uci:section("firewall", "forwarding", nil, section)
 182                 end)
 183
 184                 uci:foreach("freifunk", "fw_rule", function(section)
 185                         uci:section("firewall", "rule", nil, section)
 186                 end)
 187                 uci:foreach(external, "fw_rule", function(section)
 188                         uci:section("firewall", "rule", nil, section)
 189                 end)
 190         end
 191
 192         -- Enforce firewall include
 193         local has_include = false
 194         uci:foreach("firewall", "include",
 195                 function(section)
 196                         if section.path == "/etc/firewall.freifunk" then
 197                                 has_include = true
 198                         end
 199                 end)
 200
 201         if not has_include then
 202                 uci:section("firewall", "include", nil,
 203                         { path = "/etc/firewall.freifunk" })
 204         end
 205
 206         -- Allow state: invalid packets
 207         uci:foreach("firewall", "defaults",
 208                 function(section)
 209                         uci:set("firewall", section[".name"], "drop_invalid", "0")
 210                 end)
 211
 212         uci:save("firewall")
 213
 214
 215         -- Crate network interface
 216         local netconfig = uci:get_all("freifunk", "interface")
 217         util.update(netconfig, uci:get_all(external, "interface") or {})
 218         netconfig.proto = "static"
 219         netconfig.ipaddr = ip
 220         uci:section("network", "interface", device, netconfig)
 221
 222         uci:save("network")
 223
 224         tools.firewall_zone_add_interface("freifunk", device)
 225 end
 226
 227
 228 function olsr.write(self, section, value)
 229         if value == "0" then
 230                 return
 231         end
 232
 233
 234         local device = dev:formvalue(section)
 235
 236         local community = net:formvalue(section)
 237         local external  = community and uci:get("freifunk", community, "external") or ""
 238
 239         -- Delete old interface
 240         uci:delete_all("olsrd", "Interface", {interface=device})
 241
 242         -- Write new interface
 243         local olsrbase = uci:get_all("freifunk", "olsr_interface")
 244         util.update(olsrbase, uci:get_all(external, "olsr_interface") or {})
 245         olsrbase.interface = device
 246         olsrbase.ignore    = "0"
 247         uci:section("olsrd", "Interface", nil, olsrbase)
 248         uci:save("olsrd")
 249 end
 250
 251
 252 function share.write(self, section, value)
 253         uci:delete_all("firewall", "forwarding", {src="freifunk", dest="wan"})
 254
 255         if value == "1" then
 256                 uci:section("firewall", "forwarding", nil, {src="freifunk", dest="wan"})
 257         end
 258         uci:save("firewall")
 259 end
 260
 261
 262 function client.write(self, section, value)
 263         if value == "0" then
 264                 return
 265         end
 266
 267         local device = dev:formvalue(section)
 268
 269         -- Collect IP-Address
 270         local inet = net:formvalue(section)
 271         local isubnet = subnet:formvalue(section)
 272         local inode = node:formvalue(section)
 273
 274         if not inet or not isubnet or not inode then
 275                 return
 276         end
 277         local community = inet
 278         local external  = community and uci:get("freifunk", community, "external") or ""
 279         inet = uci:get("freifunk", community, "prefix") or inet
 280
 281         local dhcpbeg = 48 + tonumber(inode) * 4
 282         local dclient = "%s.%s.%s" % {inet:gsub("^[0-9]+", "10"), isubnet, dhcpbeg}
 283         local limit = dhcpbeg < 252 and 3 or 2
 284
 285         -- Delete old alias
 286         uci:delete("network", device .. "dhcp")
 287
 288         -- Create alias
 289         local aliasbase = uci:get_all("freifunk", "alias")
 290         util.update(aliasbase, uci:get_all(external, "alias") or {})
 291         aliasbase.interface = device
 292         aliasbase.ipaddr = dclient
 293         aliasbase.proto = "static"
 294         uci:section("network", "alias", device .. "dhcp", aliasbase)
 295         uci:save("network")
 296
 297
 298         -- Create dhcp
 299         local dhcpbase = uci:get_all("freifunk", "dhcp")
 300         util.update(dhcpbase, uci:get_all(external, "dhcp") or {})
 301         dhcpbase.interface = device .. "dhcp"
 302         dhcpbase.start = dhcpbeg
 303         dhcpbase.limit = limit
 304
 305         uci:section("dhcp", "dhcp", device .. "dhcp", dhcpbase)
 306         uci:save("dhcp")
 307
 308         uci:delete_all("firewall", "rule", {
 309                 src="freifunk",
 310                 proto="udp",
 311                 src_port="68",
 312                 dest_port="67"
 313         })
 314         uci:section("firewall", "rule", nil, {
 315                 src="freifunk",
 316                 proto="udp",
 317                 src_port="68",
 318                 dest_port="67",
 319                 target="ACCEPT"
 320         })
 321         uci:delete_all("firewall", "rule", {
 322                 src="freifunk",
 323                 proto="tcp",
 324                 dest_port="8082",
 325         })
 326         uci:section("firewall", "rule", nil, {
 327                 src="freifunk",
 328                 proto="tcp",
 329                 dest_port="8082",
 330                 target="ACCEPT"
 331         })
 332
 333
 334
 335         -- Delete old splash
 336         uci:delete_all("luci_splash", "iface", {net=device, zone="freifunk"})
 337
 338         -- Register splash
 339         uci:section("luci_splash", "iface", nil, {net=device, zone="freifunk"})
 340         uci:save("luci_splash")
 341 end
 342
 343 return f