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", "REJECT", "ACCEPT", "REJECT", 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         -- Prepare advanced config
 213         local has_advanced = false
 214         uci:foreach("firewall", "advanced",
 215                 function(section) has_advanced = true end)
 216
 217         if not has_advanced then
 218                 uci:section("firewall", "advanced", nil,
 219                         { tcp_ecn = "0" })
 220         end
 221
 222         uci:save("firewall")
 223
 224
 225         -- Crate network interface
 226         local netconfig = uci:get_all("freifunk", "interface")
 227         util.update(netconfig, uci:get_all(external, "interface") or {})
 228         netconfig.proto = "static"
 229         netconfig.ipaddr = ip
 230         uci:section("network", "interface", device, netconfig)
 231
 232         uci:save("network")
 233
 234         tools.firewall_zone_add_interface("freifunk", device)
 235 end
 236
 237
 238 function olsr.write(self, section, value)
 239         if value == "0" then
 240                 return
 241         end
 242
 243
 244         local device = dev:formvalue(section)
 245
 246         local community = net:formvalue(section)
 247         local external  = community and uci:get("freifunk", community, "external") or ""
 248
 249         -- Delete old interface
 250         uci:delete_all("olsrd", "Interface", {interface=device})
 251
 252         -- Write new interface
 253         local olsrbase = uci:get_all("freifunk", "olsr_interface")
 254         util.update(olsrbase, uci:get_all(external, "olsr_interface") or {})
 255         olsrbase.interface = device
 256         olsrbase.ignore    = "0"
 257         uci:section("olsrd", "Interface", nil, olsrbase)
 258         uci:save("olsrd")
 259 end
 260
 261
 262 function share.write(self, section, value)
 263         uci:delete_all("firewall", "forwarding", {src="freifunk", dest="wan"})
 264
 265         if value == "1" then
 266                 uci:section("firewall", "forwarding", nil, {src="freifunk", dest="wan"})
 267         end
 268         uci:save("firewall")
 269 end
 270
 271
 272 function client.write(self, section, value)
 273         if value == "0" then
 274                 return
 275         end
 276
 277         local device = dev:formvalue(section)
 278
 279         -- Collect IP-Address
 280         local inet = net:formvalue(section)
 281         local isubnet = subnet:formvalue(section)
 282         local inode = node:formvalue(section)
 283
 284         if not inet or not isubnet or not inode then
 285                 return
 286         end
 287         local community = inet
 288         local external  = community and uci:get("freifunk", community, "external") or ""
 289         inet = uci:get("freifunk", community, "prefix") or inet
 290
 291         local dhcpbeg = 48 + tonumber(inode) * 4
 292         local dclient = "%s.%s.%s" % {inet:gsub("^[0-9]+", "10"), isubnet, dhcpbeg}
 293         local limit = dhcpbeg < 252 and 3 or 2
 294
 295         -- Delete old alias
 296         uci:delete("network", device .. "dhcp")
 297
 298         -- Create alias
 299         local aliasbase = uci:get_all("freifunk", "alias")
 300         util.update(aliasbase, uci:get_all(external, "alias") or {})
 301         aliasbase.interface = device
 302         aliasbase.ipaddr = dclient
 303         aliasbase.proto = "static"
 304         uci:section("network", "alias", device .. "dhcp", aliasbase)
 305         uci:save("network")
 306
 307
 308         -- Create dhcp
 309         local dhcpbase = uci:get_all("freifunk", "dhcp")
 310         util.update(dhcpbase, uci:get_all(external, "dhcp") or {})
 311         dhcpbase.interface = device .. "dhcp"
 312         dhcpbase.start = dhcpbeg
 313         dhcpbase.limit = limit
 314
 315         uci:section("dhcp", "dhcp", device .. "dhcp", dhcpbase)
 316         uci:save("dhcp")
 317
 318         uci:delete_all("firewall", "rule", {
 319                 src="freifunk",
 320                 proto="udp",
 321                 src_port="68",
 322                 dest_port="67"
 323         })
 324         uci:section("firewall", "rule", nil, {
 325                 src="freifunk",
 326                 proto="udp",
 327                 src_port="68",
 328                 dest_port="67",
 329                 target="ACCEPT"
 330         })
 331         uci:delete_all("firewall", "rule", {
 332                 src="freifunk",
 333                 proto="tcp",
 334                 dest_port="8082",
 335         })
 336         uci:section("firewall", "rule", nil, {
 337                 src="freifunk",
 338                 proto="tcp",
 339                 dest_port="8082",
 340                 target="ACCEPT"
 341         })
 342
 343
 344
 345         -- Delete old splash
 346         uci:delete_all("luci_splash", "iface", {net=device, zone="freifunk"})
 347
 348         -- Register splash
 349         uci:section("luci_splash", "iface", nil, {net=device, zone="freifunk"})
 350         uci:save("luci_splash")
 351 end
 352
 353 return f