libs/core/luasrc/model/wireless.lua

   1 --[[
   2 LuCI - Wireless model
   3
   4 Copyright 2009 Jo-Philipp Wich <xm@subsignal.org>
   5
   6 Licensed under the Apache License, Version 2.0 (the "License");
   7 you may not use this file except in compliance with the License.
   8 You may obtain a copy of the License at
   9
  10         http://www.apache.org/licenses/LICENSE-2.0
  11
  12 Unless required by applicable law or agreed to in writing, software
  13 distributed under the License is distributed on an "AS IS" BASIS,
  14 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15 See the License for the specific language governing permissions and
  16 limitations under the License.
  17
  18 ]]--
  19
  20 local pairs, i18n, uci, math = pairs, luci.i18n, luci.model.uci, math
  21
  22 local iwi = require "iwinfo"
  23 local utl = require "luci.util"
  24 local uct = require "luci.model.uci.bind"
  25
  26 module "luci.model.wireless"
  27
  28 local ub = uct.bind("wireless")
  29 local st, ifs
  30
  31 function init(cursor)
  32         cursor:unload("wireless")
  33         cursor:load("wireless")
  34         ub:init(cursor)
  35
  36         st = uci.cursor_state()
  37         ifs = { }
  38
  39         local count = 0
  40
  41         ub.uci:foreach("wireless", "wifi-iface",
  42                 function(s)
  43                         count = count + 1
  44
  45                         local id = "%s.network%d" %{ s.device, count }
  46
  47                         ifs[id] = {
  48                                 id    = id,
  49                                 sid   = s['.name'],
  50                                 count = count
  51                         }
  52
  53                         local dev = st:get("wireless", s['.name'], "ifname")
  54                                 or st:get("wireless", s['.name'], "device")
  55
  56                         local wtype = dev and iwi.type(dev)
  57
  58                         if dev and wtype then
  59                                 ifs[id].winfo = iwi[wtype]
  60                                 ifs[id].wdev  = dev
  61                         end
  62                 end)
  63 end
  64
  65 function get_device(self, dev)
  66         return device(dev)
  67 end
  68
  69 function get_devices(self)
  70         local devs = { }
  71         ub.uci:foreach("wireless", "wifi-device",
  72                 function(s) devs[#devs+1] = device(s['.name']) end)
  73         return devs
  74 end
  75
  76 function get_network(self, id)
  77         if ifs[id] then
  78                 return network(ifs[id].sid)
  79         else
  80                 local n
  81                 for n, _ in pairs(ifs) do
  82                         if ifs[n].sid == id then
  83                                 return network(id)
  84                         end
  85                 end
  86         end
  87 end
  88
  89 function shortname(self, iface)
  90         if iface.wdev and iface.winfo then
  91                 return "%s %q" %{
  92                         i18n.translate(iface:active_mode()),
  93                         iface:active_ssid() or i18n.translate("(hidden)")
  94                 }
  95         else
  96                 return iface:name()
  97         end
  98 end
  99
 100 function get_i18n(self, iface)
 101         if iface.wdev and iface.winfo then
 102                 return "%s: %s %q (%s)" %{
 103                         i18n.translate("Wireless Network"),
 104                         i18n.translate(iface:active_mode()),
 105                         iface:active_ssid() or i18n.translate("(hidden)"), iface.wdev
 106                 }
 107         else
 108                 return "%s: %q" %{ i18n.translate("Wireless Network"), iface:name() }
 109         end
 110 end
 111
 112 function del_network(self, id)
 113         if ifs[id] then
 114                 ub.uci:delete("wireless", ifs[id].sid)
 115                 ifs[id] = nil
 116         else
 117                 local n
 118                 for n, _ in pairs(ifs) do
 119                         if ifs[n].sid == id then
 120                                 ub.uci:delete("wireless", id)
 121                                 ifs[n] = nil
 122                         end
 123                 end
 124         end
 125 end
 126
 127 function find_interfaces(self, iflist, brlist)
 128         local iface
 129         for iface, _ in pairs(ifs) do
 130                 iflist[iface] = ifs[iface]
 131         end
 132 end
 133
 134 function ignore_interface(self, iface)
 135         if ifs and ifs[iface] then
 136                 return false
 137         else
 138                 return iwi.type(iface) and true or false
 139         end
 140 end
 141
 142 function add_interface(self, net, iface)
 143         if ifs and ifs[iface] and ifs[iface].sid then
 144                 ub.uci:set("wireless", ifs[iface].sid, "network", net:name())
 145                 ifs[iface].network = net:name()
 146                 return true
 147         end
 148
 149         return false
 150 end
 151
 152 function del_interface(self, net, iface)
 153         if ifs and ifs[iface] and ifs[iface].sid then
 154                 ub.uci:delete("wireless", ifs[iface].sid, "network")
 155                 --return true
 156         end
 157
 158         return false
 159 end
 160
 161
 162 device = ub:section("wifi-device")
 163 device:property("type")
 164 device:property("channel")
 165 device:property_bool("disabled")
 166
 167 function device.name(self)
 168         return self.sid
 169 end
 170
 171 function device.is_up(self)
 172         local rv = false
 173
 174         if not self:disabled() then
 175                 st:foreach("wireless", "wifi-iface",
 176                         function(s)
 177                                 if s.device == self:name() and s.up == "1" then
 178                                         rv = true
 179                                         return false
 180                                 end
 181                         end)
 182         end
 183
 184         return rv
 185 end
 186
 187 function device.get_networks(self)
 188         local nets = { }
 189
 190         ub.uci:foreach("wireless", "wifi-iface",
 191                 function(s)
 192                         if s.device == self:name() then
 193                                 nets[#nets+1] = network(s['.name'])
 194                         end
 195                 end)
 196
 197         return nets
 198 end
 199
 200
 201 network = ub:section("wifi-iface")
 202 network:property("mode")
 203 network:property("ssid")
 204 network:property("bssid")
 205 network:property("network")
 206
 207 function network._init(self, sid)
 208         local count = 0
 209
 210         ub.uci:foreach("wireless", "wifi-iface",
 211                 function(s)
 212                         count = count + 1
 213                         return s['.name'] ~= sid
 214                 end)
 215
 216         local parent_dev = st:get("wireless", sid, "device")
 217
 218         local dev = st:get("wireless", sid, "ifname")
 219                 or parent_dev
 220
 221         if dev then
 222                 self.id = "%s.network%d" %{ parent_dev, count }
 223
 224                 local wtype = iwi.type(dev)
 225                 if dev and wtype then
 226                         self.winfo = iwi[wtype]
 227                         self.wdev  = dev
 228                 end
 229         end
 230 end
 231
 232 function network.name(self)
 233         return self.id
 234 end
 235
 236 function network.ifname(self)
 237         return self.wdev
 238 end
 239
 240 function network.get_device(self)
 241         if self.device then
 242                 return device(self.device)
 243         end
 244 end
 245
 246 function network.is_up(self)
 247         return (st:get("wireless", self.sid, "up") == "1")
 248 end
 249
 250 function network.active_mode(self)
 251         local m = self.winfo and self.winfo.mode(self.wdev)
 252         if not m then
 253                 m = self:mode()
 254                 if     m == "ap"      then m = "AP"
 255                 elseif m == "sta"     then m = "Client"
 256                 elseif m == "adhoc"   then m = "Ad-Hoc"
 257                 elseif m == "mesh"    then m = "Mesh"
 258                 elseif m == "monitor" then m = "Monitor"
 259                 end
 260         end
 261         return m or "Client"
 262 end
 263
 264 function network.active_mode_i18n(self)
 265         return i18n.translate(self:active_mode())
 266 end
 267
 268 function network.active_ssid(self)
 269         return self.winfo and self.winfo.ssid(self.wdev) or
 270                 self:ssid()
 271 end
 272
 273 function network.active_bssid(self)
 274         return self.winfo and self.winfo.bssid(self.wdev) or
 275                 self:bssid() or "00:00:00:00:00:00"
 276 end
 277
 278 function network.active_encryption(self)
 279         return self.winfo and self.winfo.enctype(self.wdev) or "-"
 280 end
 281
 282 function network.assoclist(self)
 283         return self.winfo and self.winfo.assoclist(self.wdev) or { }
 284 end
 285
 286 function network.frequency(self)
 287         local freq = self.winfo and self.winfo.frequency(self.wdev)
 288         return freq and freq > 0 and "%.03f" % (freq / 1000)
 289 end
 290
 291 function network.bitrate(self)
 292         local rate = self.winfo and self.winfo.bitrate(self.wdev)
 293         return rate and rate > 0 and (rate / 1000)
 294 end
 295
 296 function network.channel(self)
 297         return self.winfo and self.winfo.channel(self.wdev)
 298 end
 299
 300 function network.signal(self)
 301         return self.winfo and self.winfo.signal(self.wdev) or 0
 302 end
 303
 304 function network.noise(self)
 305         return self.winfo and self.winfo.noise(self.wdev) or 0
 306 end
 307
 308 function network.signal_level(self, s, n)
 309         if self:active_bssid() ~= "00:00:00:00:00:00" then
 310                 local signal = s or self:signal()
 311                 local noise  = n or self:noise()
 312
 313                 if signal < 0 and noise < 0 then
 314                         local snr = -1 * (noise - signal)
 315                         return math.floor(snr / 5)
 316                 else
 317                         return 0
 318                 end
 319         else
 320                 return -1
 321         end
 322 end
 323
 324 function network.signal_percent(self)
 325         local qc = self.winfo and
 326                 self.winfo.quality(self.wdev) or 0
 327
 328         local qm = self.winfo and
 329                 self.winfo.quality_max(self.wdev) or 0
 330
 331         if qc > 0 and qm > 0 then
 332                 return math.floor((100 / qm) * qc)
 333         else
 334                 return 0
 335         end
 336 end
 337