libs/core/luasrc/model/network.lua

   1 --[[
   2 LuCI - Network model
   3
   4 Copyright 2009-2010 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 type, next, pairs, ipairs, loadfile, table
  21         = type, next, pairs, ipairs, loadfile, table
  22
  23 local tonumber, tostring, math, i18n
  24         = tonumber, tostring, math, luci.i18n
  25
  26 local require = require
  27
  28 local nxo = require "nixio"
  29 local nfs = require "nixio.fs"
  30 local ipc = require "luci.ip"
  31 local sys = require "luci.sys"
  32 local utl = require "luci.util"
  33 local dsp = require "luci.dispatcher"
  34 local uci = require "luci.model.uci"
  35
  36 module "luci.model.network"
  37
  38
  39 IFACE_PATTERNS_VIRTUAL  = { }
  40 IFACE_PATTERNS_IGNORE   = { "^wmaster%d", "^wifi%d", "^hwsim%d", "^imq%d", "^ifb%d", "^mon%.wlan%d", "^sit%d", "^lo$" }
  41 IFACE_PATTERNS_WIRELESS = { "^wlan%d", "^wl%d", "^ath%d", "^%w+%.network%d" }
  42
  43
  44 protocol = utl.class()
  45
  46 local _protocols = { }
  47
  48 local _interfaces, _bridge, _switch, _tunnel
  49 local _uci_real, _uci_state
  50
  51 function _filter(c, s, o, r)
  52         local val = _uci_real:get(c, s, o)
  53         if val then
  54                 local l = { }
  55                 if type(val) == "string" then
  56                         for val in val:gmatch("%S+") do
  57                                 if val ~= r then
  58                                         l[#l+1] = val
  59                                 end
  60                         end
  61                         if #l > 0 then
  62                                 _uci_real:set(c, s, o, table.concat(l, " "))
  63                         else
  64                                 _uci_real:delete(c, s, o)
  65                         end
  66                 elseif type(val) == "table" then
  67                         for _, val in ipairs(val) do
  68                                 if val ~= r then
  69                                         l[#l+1] = val
  70                                 end
  71                         end
  72                         if #l > 0 then
  73                                 _uci_real:set(c, s, o, l)
  74                         else
  75                                 _uci_real:delete(c, s, o)
  76                         end
  77                 end
  78         end
  79 end
  80
  81 function _append(c, s, o, a)
  82         local val = _uci_real:get(c, s, o) or ""
  83         if type(val) == "string" then
  84                 local l = { }
  85                 for val in val:gmatch("%S+") do
  86                         if val ~= a then
  87                                 l[#l+1] = val
  88                         end
  89                 end
  90                 l[#l+1] = a
  91                 _uci_real:set(c, s, o, table.concat(l, " "))
  92         elseif type(val) == "table" then
  93                 local l = { }
  94                 for _, val in ipairs(val) do
  95                         if val ~= a then
  96                                 l[#l+1] = val
  97                         end
  98                 end
  99                 l[#l+1] = a
 100                 _uci_real:set(c, s, o, l)
 101         end
 102 end
 103
 104 function _stror(s1, s2)
 105         if not s1 or #s1 == 0 then
 106                 return s2 and #s2 > 0 and s2
 107         else
 108                 return s1
 109         end
 110 end
 111
 112 function _get(c, s, o)
 113         return _uci_real:get(c, s, o)
 114 end
 115
 116 function _set(c, s, o, v)
 117         if v ~= nil then
 118                 if type(v) == "boolean" then v = v and "1" or "0" end
 119                 return _uci_real:set(c, s, o, v)
 120         else
 121                 return _uci_real:delete(c, s, o)
 122         end
 123 end
 124
 125 function _wifi_iface(x)
 126         local _, p
 127         for _, p in ipairs(IFACE_PATTERNS_WIRELESS) do
 128                 if x:match(p) then
 129                         return true
 130                 end
 131         end
 132         return false
 133 end
 134
 135 function _wifi_lookup(ifn)
 136         -- got a radio#.network# pseudo iface, locate the corresponding section
 137         local radio, ifnidx = ifn:match("^(%w+)%.network(%d+)$")
 138         if radio and ifnidx then
 139                 local sid = nil
 140                 local num = 0
 141
 142                 ifnidx = tonumber(ifnidx)
 143                 _uci_real:foreach("wireless", "wifi-iface",
 144                         function(s)
 145                                 if s.device == radio then
 146                                         num = num + 1
 147                                         if num == ifnidx then
 148                                                 sid = s['.name']
 149                                                 return false
 150                                         end
 151                                 end
 152                         end)
 153
 154                 return sid
 155
 156         -- looks like wifi, try to locate the section via state vars
 157         elseif _wifi_iface(ifn) then
 158                 local sid = nil
 159
 160                 _uci_state:foreach("wireless", "wifi-iface",
 161                         function(s)
 162                                 if s.ifname == ifn then
 163                                         sid = s['.name']
 164                                         return false
 165                                 end
 166                         end)
 167
 168                 return sid
 169         end
 170 end
 171
 172 function _iface_virtual(x)
 173         local _, p
 174         for _, p in ipairs(IFACE_PATTERNS_VIRTUAL) do
 175                 if x:match(p) then
 176                         return true
 177                 end
 178         end
 179         return false
 180 end
 181
 182 function _iface_ignore(x)
 183         local _, p
 184         for _, p in ipairs(IFACE_PATTERNS_IGNORE) do
 185                 if x:match(p) then
 186                         return true
 187                 end
 188         end
 189         return _iface_virtual(x)
 190 end
 191
 192
 193 function init(cursor)
 194         _uci_real  = cursor or _uci_real or uci.cursor()
 195         _uci_state = _uci_real:substate()
 196
 197         _interfaces = { }
 198         _bridge     = { }
 199         _switch     = { }
 200         _tunnel     = { }
 201
 202         -- read interface information
 203         local n, i
 204         for n, i in ipairs(nxo.getifaddrs()) do
 205                 local name = i.name:match("[^:]+")
 206                 local prnt = name:match("^([^%.]+)%.")
 207
 208                 if _iface_virtual(name) then
 209                         _tunnel[name] = true
 210                 end
 211
 212                 if _tunnel[name] or not _iface_ignore(name) then
 213                         _interfaces[name] = _interfaces[name] or {
 214                                 idx      = i.ifindex or n,
 215                                 name     = name,
 216                                 rawname  = i.name,
 217                                 flags    = { },
 218                                 ipaddrs  = { },
 219                                 ip6addrs = { }
 220                         }
 221
 222                         if prnt then
 223                                 _switch[name] = true
 224                                 _switch[prnt] = true
 225                         end
 226
 227                         if i.family == "packet" then
 228                                 _interfaces[name].flags   = i.flags
 229                                 _interfaces[name].stats   = i.data
 230                                 _interfaces[name].macaddr = i.addr
 231                         elseif i.family == "inet" then
 232                                 _interfaces[name].ipaddrs[#_interfaces[name].ipaddrs+1] = ipc.IPv4(i.addr, i.netmask)
 233                         elseif i.family == "inet6" then
 234                                 _interfaces[name].ip6addrs[#_interfaces[name].ip6addrs+1] = ipc.IPv6(i.addr, i.netmask)
 235                         end
 236                 end
 237         end
 238
 239         -- read bridge informaton
 240         local b, l
 241         for l in utl.execi("brctl show") do
 242                 if not l:match("STP") then
 243                         local r = utl.split(l, "%s+", nil, true)
 244                         if #r == 4 then
 245                                 b = {
 246                                         name    = r[1],
 247                                         id      = r[2],
 248                                         stp     = r[3] == "yes",
 249                                         ifnames = { _interfaces[r[4]] }
 250                                 }
 251                                 if b.ifnames[1] then
 252                                         b.ifnames[1].bridge = b
 253                                 end
 254                                 _bridge[r[1]] = b
 255                         elseif b then
 256                                 b.ifnames[#b.ifnames+1] = _interfaces[r[2]]
 257                                 b.ifnames[#b.ifnames].bridge = b
 258                         end
 259                 end
 260         end
 261
 262         return _M
 263 end
 264
 265 function save(self, ...)
 266         _uci_real:save(...)
 267         _uci_real:load(...)
 268 end
 269
 270 function commit(self, ...)
 271         _uci_real:commit(...)
 272         _uci_real:load(...)
 273 end
 274
 275 function ifnameof(self, x)
 276         if utl.instanceof(x, interface) then
 277                 return x:name()
 278         elseif utl.instanceof(x, protocol) then
 279                 return x:ifname()
 280         elseif type(x) == "string" then
 281                 return x:match("^[^:]+")
 282         end
 283 end
 284
 285 function get_protocol(self, protoname, netname)
 286         local v = _protocols[protoname]
 287         if v then
 288                 return v(netname or "__dummy__")
 289         end
 290 end
 291
 292 function get_protocols(self)
 293         local p = { }
 294         local _, v
 295         for _, v in ipairs(_protocols) do
 296                 p[#p+1] = v("__dummy__")
 297         end
 298         return p
 299 end
 300
 301 function register_protocol(self, protoname)
 302         local proto = utl.class(protocol)
 303
 304         function proto.__init__(self, name)
 305                 self.sid = name
 306         end
 307
 308         function proto.proto(self)
 309                 return protoname
 310         end
 311
 312         _protocols[#_protocols+1] = proto
 313         _protocols[protoname]     = proto
 314
 315         return proto
 316 end
 317
 318 function register_pattern_virtual(self, pat)
 319         IFACE_PATTERNS_VIRTUAL[#IFACE_PATTERNS_VIRTUAL+1] = pat
 320 end
 321
 322
 323 function has_ipv6(self)
 324         return nfs.access("/proc/net/ipv6_route")
 325 end
 326
 327 function add_network(self, n, options)
 328         local oldnet = self:get_network(n)
 329         if n and #n > 0 and n:match("^[a-zA-Z0-9_]+$") and not oldnet then
 330                 if _uci_real:section("network", "interface", n, options) then
 331                         return network(n)
 332                 end
 333         elseif oldnet and oldnet:is_empty() then
 334                 if options then
 335                         local k, v
 336                         for k, v in pairs(options) do
 337                                 oldnet:set(k, v)
 338                         end
 339                 end
 340                 return oldnet
 341         end
 342 end
 343
 344 function get_network(self, n)
 345         if n and _uci_real:get("network", n) == "interface" then
 346                 return network(n)
 347         end
 348 end
 349
 350 function get_networks(self)
 351         local nets = { }
 352         local nls = { }
 353
 354         _uci_real:foreach("network", "interface",
 355                 function(s)
 356                         nls[s['.name']] = network(s['.name'])
 357                 end)
 358
 359         local n
 360         for n in utl.kspairs(nls) do
 361                 nets[#nets+1] = nls[n]
 362         end
 363
 364         return nets
 365 end
 366
 367 function del_network(self, n)
 368         local r = _uci_real:delete("network", n)
 369         if r then
 370                 _uci_real:delete_all("network", "alias",
 371                         function(s) return (s.interface == n) end)
 372
 373                 _uci_real:delete_all("network", "route",
 374                         function(s) return (s.interface == n) end)
 375
 376                 _uci_real:delete_all("network", "route6",
 377                         function(s) return (s.interface == n) end)
 378
 379                 _uci_real:foreach("wireless", "wifi-iface",
 380                         function(s)
 381                                 if s.network == n then
 382                                         _uci_real:delete("wireless", s['.name'], "network")
 383                                 end
 384                         end)
 385         end
 386         return r
 387 end
 388
 389 function rename_network(self, old, new)
 390         local r
 391         if new and #new > 0 and new:match("^[a-zA-Z0-9_]+$") and not self:get_network(new) then
 392                 r = _uci_real:section("network", "interface", new, _uci_real:get_all("network", old))
 393
 394                 if r then
 395                         _uci_real:foreach("network", "alias",
 396                                 function(s)
 397                                         if s.interface == old then
 398                                                 _uci_real:set("network", s['.name'], "interface", new)
 399                                         end
 400                                 end)
 401
 402                         _uci_real:foreach("network", "route",
 403                                 function(s)
 404                                         if s.interface == old then
 405                                                 _uci_real:set("network", s['.name'], "interface", new)
 406                                         end
 407                                 end)
 408
 409                         _uci_real:foreach("network", "route6",
 410                                 function(s)
 411                                         if s.interface == old then
 412                                                 _uci_real:set("network", s['.name'], "interface", new)
 413                                         end
 414                                 end)
 415
 416                         _uci_real:foreach("wireless", "wifi-iface",
 417                                 function(s)
 418                                         if s.network == old then
 419                                                 _uci_real:set("wireless", s['.name'], "network", new)
 420                                         end
 421                                 end)
 422
 423                         _uci_real:delete("network", old)
 424                 end
 425         end
 426         return r or false
 427 end
 428
 429 function get_interface(self, i)
 430         if _interfaces[i] or _wifi_iface(i) then
 431                 return interface(i)
 432         else
 433                 local ifc
 434                 local num = { }
 435                 _uci_real:foreach("wireless", "wifi-iface",
 436                         function(s)
 437                                 if s.device then
 438                                         num[s.device] = num[s.device] and num[s.device] + 1 or 1
 439                                         if s['.name'] == i then
 440                                                 ifc = interface(
 441                                                         "%s.network%d" %{s.device, num[s.device] })
 442                                                 return false
 443                                         end
 444                                 end
 445                         end)
 446                 return ifc
 447         end
 448 end
 449
 450 function get_interfaces(self)
 451         local iface
 452         local ifaces = { }
 453         local seen = { }
 454         local nfs = { }
 455         local baseof = { }
 456
 457         -- find normal interfaces
 458         _uci_real:foreach("network", "interface",
 459                 function(s)
 460                         for iface in utl.imatch(s.ifname) do
 461                                 if not _iface_ignore(iface) and not _wifi_iface(iface) then
 462                                         seen[iface] = true
 463                                         nfs[iface] = interface(iface)
 464                                 end
 465                         end
 466                 end)
 467
 468         for iface in utl.kspairs(_interfaces) do
 469                 if not (seen[iface] or _iface_ignore(iface) or _wifi_iface(iface)) then
 470                         nfs[iface] = interface(iface)
 471                 end
 472         end
 473
 474         -- find vlan interfaces
 475         _uci_real:foreach("network", "switch_vlan",
 476                 function(s)
 477                         if not s.device then
 478                                 return
 479                         end
 480
 481                         local base = baseof[s.device]
 482                         if not base then
 483                                 if not s.device:match("^eth%d") then
 484                                         local l
 485                                         for l in utl.execi("swconfig dev %q help 2>/dev/null" % s.device) do
 486                                                 if not base then
 487                                                         base = l:match("^%w+: (%w+)")
 488                                                 end
 489                                         end
 490                                         if not base or not base:match("^eth%d") then
 491                                                 base = "eth0"
 492                                         end
 493                                 else
 494                                         base = s.device
 495                                 end
 496                                 baseof[s.device] = base
 497                         end
 498
 499                         local vid = tonumber(s.vid or s.vlan)
 500                         if vid ~= nil and vid >= 0 and vid <= 4095 then
 501                                 local iface = "%s.%d" %{ base, vid }
 502                                 if not seen[iface] then
 503                                         seen[iface] = true
 504                                         nfs[iface] = interface(iface)
 505                                 end
 506                         end
 507                 end)
 508
 509         for iface in utl.kspairs(nfs) do
 510                 ifaces[#ifaces+1] = nfs[iface]
 511         end
 512
 513         -- find wifi interfaces
 514         local num = { }
 515         local wfs = { }
 516         _uci_real:foreach("wireless", "wifi-iface",
 517                 function(s)
 518                         if s.device then
 519                                 num[s.device] = num[s.device] and num[s.device] + 1 or 1
 520                                 local i = "%s.network%d" %{ s.device, num[s.device] }
 521                                 wfs[i] = interface(i)
 522                         end
 523                 end)
 524
 525         for iface in utl.kspairs(wfs) do
 526                 ifaces[#ifaces+1] = wfs[iface]
 527         end
 528
 529         return ifaces
 530 end
 531
 532 function ignore_interface(self, x)
 533         return _iface_ignore(x)
 534 end
 535
 536 function get_wifidev(self, dev)
 537         if _uci_real:get("wireless", dev) == "wifi-device" then
 538                 return wifidev(dev)
 539         end
 540 end
 541
 542 function get_wifidevs(self)
 543         local devs = { }
 544         local wfd  = { }
 545
 546         _uci_real:foreach("wireless", "wifi-device",
 547                 function(s) wfd[#wfd+1] = s['.name'] end)
 548
 549         local dev
 550         for _, dev in utl.vspairs(wfd) do
 551                 devs[#devs+1] = wifidev(dev)
 552         end
 553
 554         return devs
 555 end
 556
 557 function get_wifinet(self, net)
 558         local wnet = _wifi_lookup(net)
 559         if wnet then
 560                 return wifinet(wnet)
 561         end
 562 end
 563
 564 function add_wifinet(self, net, options)
 565         if type(options) == "table" and options.device and
 566                 _uci_real:get("wireless", options.device) == "wifi-device"
 567         then
 568                 local wnet = _uci_real:section("wireless", "wifi-iface", nil, options)
 569                 return wifinet(wnet)
 570         end
 571 end
 572
 573 function del_wifinet(self, net)
 574         local wnet = _wifi_lookup(net)
 575         if wnet then
 576                 _uci_real:delete("wireless", wnet)
 577                 return true
 578         end
 579         return false
 580 end
 581
 582
 583 function network(name, proto)
 584         if name then
 585                 local p = proto or _uci_real:get("network", name, "proto")
 586                 local c = p and _protocols[p] or protocol
 587                 return c(name)
 588         end
 589 end
 590
 591 function protocol.__init__(self, name)
 592         self.sid = name
 593 end
 594
 595 function protocol._get(self, opt)
 596         local v = _uci_real:get("network", self.sid, opt)
 597         if type(v) == "table" then
 598                 return table.concat(v, " ")
 599         end
 600         return v or ""
 601 end
 602
 603 function protocol._ip(self, opt, family, list)
 604         local ip = _uci_state:get("network", self.sid, opt)
 605         local fc = (family == 6) and ipc.IPv6 or ipc.IPv4
 606         if ip or list then
 607                 if list then
 608                         local l = { }
 609                         for ip in utl.imatch(ip) do
 610                                 ip = fc(ip)
 611                                 if ip then l[#l+1] = ip:string() end
 612                         end
 613                         return l
 614                 else
 615                         ip = fc(ip)
 616                         return ip and ip:string()
 617                 end
 618         end
 619 end
 620
 621 function protocol.get(self, opt)
 622         return _get("network", self.sid, opt)
 623 end
 624
 625 function protocol.set(self, opt, val)
 626         return _set("network", self.sid, opt, val)
 627 end
 628
 629 function protocol.ifname(self)
 630         local p = self:proto()
 631         if self:is_bridge() then
 632                 return "br-" .. self.sid
 633         elseif self:is_virtual() then
 634                 return p .. "-" .. self.sid
 635         else
 636                 local num = { }
 637                 local dev = _uci_real:get("network", self.sid, "ifname") or
 638                         _uci_state:get("network", self.sid, "ifname")
 639
 640                 dev = (type(dev) == "table") and dev[1] or dev
 641                 dev = (dev ~= nil) and dev:match("%S+")
 642
 643                 if not dev then
 644                         _uci_real:foreach("wireless", "wifi-iface",
 645                                 function(s)
 646                                         if s.device then
 647                                                 num[s.device] = num[s.device]
 648                                                         and num[s.device] + 1 or 1
 649
 650                                                 if s.network == self.sid then
 651                                                         dev = "%s.network%d" %{ s.device, num[s.device] }
 652                                                         return false
 653                                                 end
 654                                         end
 655                                 end)
 656                 end
 657
 658                 return dev
 659         end
 660 end
 661
 662 function protocol.proto(self)
 663         return "none"
 664 end
 665
 666 function protocol.get_i18n(self)
 667         local p = self:proto()
 668         if p == "none" then
 669                 return i18n.translate("Unmanaged")
 670         elseif p == "static" then
 671                 return i18n.translate("Static address")
 672         elseif p == "dhcp" then
 673                 return i18n.translate("DHCP client")
 674         else
 675                 return i18n.translate("Unknown")
 676         end
 677 end
 678
 679 function protocol.type(self)
 680         return self:_get("type")
 681 end
 682
 683 function protocol.name(self)
 684         return self.sid
 685 end
 686
 687 function protocol.uptime(self)
 688         local cnt = tonumber(_uci_state:get("network", self.sid, "connect_time"))
 689         if cnt ~= nil then
 690                 return nxo.sysinfo().uptime - cnt
 691         else
 692                 return 0
 693         end
 694 end
 695
 696 function protocol.expires(self)
 697         local a = tonumber(_uci_state:get("network", self.sid, "lease_acquired"))
 698         local l = tonumber(_uci_state:get("network", self.sid, "lease_lifetime"))
 699         if a and l then
 700                 l = l - (nxo.sysinfo().uptime - a)
 701                 return l > 0 and l or 0
 702         end
 703         return -1
 704 end
 705
 706 function protocol.metric(self)
 707         return tonumber(_uci_state:get("network", self.sid, "metric")) or 0
 708 end
 709
 710 function protocol.ipaddr(self)
 711         return self:_ip("ipaddr", 4)
 712 end
 713
 714 function protocol.netmask(self)
 715         return self:_ip("netmask", 4)
 716 end
 717
 718 function protocol.gwaddr(self)
 719         return self:_ip("gateway", 4)
 720 end
 721
 722 function protocol.dnsaddrs(self)
 723         return self:_ip("dns", 4, true)
 724 end
 725
 726 function protocol.ip6addr(self)
 727         local ip6 = self:_ip("ip6addr", 6)
 728         if not ip6 then
 729                 local ifc = _interfaces[self:ifname()]
 730                 if ifc and ifc.ip6addrs then
 731                         local a
 732                         for _, a in ipairs(ifc.ip6addrs) do
 733                                 if not a:is6linklocal() then
 734                                         ip6 = a:string()
 735                                         break
 736                                 end
 737                         end
 738                 end
 739         end
 740         return ip6
 741 end
 742
 743 function protocol.gw6addr(self)
 744         local ip6 = self:_ip("ip6gw", 6)
 745         if not ip6 then
 746                 local dr6 = sys.net.defaultroute6()
 747                 if dr6 and dr6.device == self:ifname() then
 748                         return dr6.nexthop:string()
 749                 end
 750         end
 751         return ip6
 752 end
 753
 754 function protocol.dns6addrs(self)
 755         return self:_ip("dns", 6, true)
 756 end
 757
 758 function protocol.is_bridge(self)
 759         return (not self:is_virtual() and self:type() == "bridge")
 760 end
 761
 762 function protocol.opkg_package(self)
 763         return nil
 764 end
 765
 766 function protocol.is_installed(self)
 767         return true
 768 end
 769
 770 function protocol.is_virtual(self)
 771         return false
 772 end
 773
 774 function protocol.is_floating(self)
 775         return false
 776 end
 777
 778 function protocol.is_empty(self)
 779         if self:is_floating() then
 780                 return false
 781         else
 782                 local rv = true
 783
 784                 if (self:_get("ifname") or ""):match("%S+") then
 785                         rv = false
 786                 end
 787
 788                 _uci_real:foreach("wireless", "wifi-iface",
 789                         function(s)
 790                                 if s.network == self.sid then
 791                                         rv = false
 792                                         return false
 793                                 end
 794                         end)
 795
 796                 return rv
 797         end
 798 end
 799
 800 function protocol.add_interface(self, ifname)
 801         ifname = _M:ifnameof(ifname)
 802         if ifname and not self:is_floating() then
 803                 -- remove the interface from all ifaces
 804                 _uci_real:foreach("network", "interface",
 805                         function(s)
 806                                 _filter("network", s['.name'], "ifname", ifname)
 807                         end)
 808
 809                 -- if its a wifi interface, change its network option
 810                 local wif = _wifi_lookup(ifname)
 811                 if wif then
 812                         _uci_real:set("wireless", wif, "network", self.sid)
 813
 814                 -- add iface to our iface list
 815                 else
 816                         _append("network", self.sid, "ifname", ifname)
 817                 end
 818         end
 819 end
 820
 821 function protocol.del_interface(self, ifname)
 822         ifname = _M:ifnameof(ifname)
 823         if ifname and not self:is_floating() then
 824                 -- if its a wireless interface, clear its network option
 825                 local wif = _wifi_lookup(ifname)
 826                 if wif then     _uci_real:delete("wireless", wif, "network") end
 827
 828                 -- remove the interface
 829                 _filter("network", self.sid, "ifname", ifname)
 830         end
 831 end
 832
 833 function protocol.get_interface(self)
 834         if self:is_virtual() then
 835                 _tunnel[self:proto() .. "-" .. self.sid] = true
 836                 return interface(self:proto() .. "-" .. self.sid, self)
 837         elseif self:is_bridge() then
 838                 _bridge["br-" .. self.sid] = true
 839                 return interface("br-" .. self.sid, self)
 840         else
 841                 local ifn = nil
 842                 local num = { }
 843                 for ifn in utl.imatch(_uci_real:get("network", self.sid, "ifname")) do
 844                         ifn = ifn:match("^[^:/]+")
 845                         return ifn and interface(ifn, self)
 846                 end
 847                 ifn = nil
 848                 _uci_real:foreach("wireless", "wifi-iface",
 849                         function(s)
 850                                 if s.device then
 851                                         num[s.device] = num[s.device] and num[s.device] + 1 or 1
 852                                         if s.network == self.sid then
 853                                                 ifn = "%s.network%d" %{ s.device, num[s.device] }
 854                                                 return false
 855                                         end
 856                                 end
 857                         end)
 858                 return ifn and interface(ifn, self)
 859         end
 860 end
 861
 862 function protocol.get_interfaces(self)
 863         if self:is_bridge() or (self:is_virtual() and not self:is_floating()) then
 864                 local ifaces = { }
 865
 866                 local ifn
 867                 local nfs = { }
 868                 for ifn in utl.imatch(self:get("ifname")) do
 869                         ifn = ifn:match("^[^:/]+")
 870                         nfs[ifn] = interface(ifn, self)
 871                 end
 872
 873                 for ifn in utl.kspairs(nfs) do
 874                         ifaces[#ifaces+1] = nfs[ifn]
 875                 end
 876
 877                 local num = { }
 878                 local wfs = { }
 879                 _uci_real:foreach("wireless", "wifi-iface",
 880                         function(s)
 881                                 if s.device then
 882                                         num[s.device] = num[s.device] and num[s.device] + 1 or 1
 883                                         if s.network == self.sid then
 884                                                 ifn = "%s.network%d" %{ s.device, num[s.device] }
 885                                                 wfs[ifn] = interface(ifn, self)
 886                                         end
 887                                 end
 888                         end)
 889
 890                 for ifn in utl.kspairs(wfs) do
 891                         ifaces[#ifaces+1] = wfs[ifn]
 892                 end
 893
 894                 return ifaces
 895         end
 896 end
 897
 898 function protocol.contains_interface(self, ifname)
 899         ifname = _M:ifnameof(ifname)
 900         if not ifname then
 901                 return false
 902         elseif self:is_virtual() and self:proto() .. "-" .. self.sid == ifname then
 903                 return true
 904         elseif self:is_bridge() and "br-" .. self.sid == ifname then
 905                 return true
 906         else
 907                 local ifn
 908                 for ifn in utl.imatch(self:get("ifname")) do
 909                         ifn = ifn:match("[^:]+")
 910                         if ifn == ifname then
 911                                 return true
 912                         end
 913                 end
 914
 915                 local wif = _wifi_lookup(ifname)
 916                 if wif then
 917                         return (_uci_real:get("wireless", wif, "network") == self.sid)
 918                 end
 919         end
 920
 921         return false
 922 end
 923
 924 function protocol.adminlink(self)
 925         return dsp.build_url("admin", "network", "network", self.sid)
 926 end
 927
 928
 929 interface = utl.class()
 930
 931 function interface.__init__(self, ifname, network)
 932         local wif = _wifi_lookup(ifname)
 933         if wif then
 934                 self.wif    = wifinet(wif)
 935                 self.ifname = _uci_state:get("wireless", wif, "ifname")
 936         end
 937
 938         self.ifname  = self.ifname or ifname
 939         self.dev     = _interfaces[self.ifname]
 940         self.network = network
 941 end
 942
 943 function interface.name(self)
 944         return self.wif and self.wif:ifname() or self.ifname
 945 end
 946
 947 function interface.mac(self)
 948         return (self.dev and self.dev.macaddr or "00:00:00:00:00:00"):upper()
 949 end
 950
 951 function interface.ipaddrs(self)
 952         return self.dev and self.dev.ipaddrs or { }
 953 end
 954
 955 function interface.ip6addrs(self)
 956         return self.dev and self.dev.ip6addrs or { }
 957 end
 958
 959 function interface.type(self)
 960         if self.wif or _wifi_iface(self.ifname) then
 961                 return "wifi"
 962         elseif _bridge[self.ifname] then
 963                 return "bridge"
 964         elseif _tunnel[self.ifname] then
 965                 return "tunnel"
 966         elseif self.ifname:match("%.") then
 967                 return "vlan"
 968         elseif _switch[self.ifname] then
 969                 return "switch"
 970         else
 971                 return "ethernet"
 972         end
 973 end
 974
 975 function interface.shortname(self)
 976         if self.wif then
 977                 return "%s %q" %{
 978                         self.wif:active_mode(),
 979                         self.wif:active_ssid() or self.wif:active_bssid()
 980                 }
 981         else
 982                 return self.ifname
 983         end
 984 end
 985
 986 function interface.get_i18n(self)
 987         if self.wif then
 988                 return "%s: %s %q" %{
 989                         i18n.translate("Wireless Network"),
 990                         self.wif:active_mode(),
 991                         self.wif:active_ssid() or self.wif:active_bssid()
 992                 }
 993         else
 994                 return "%s: %q" %{ self:get_type_i18n(), self:name() }
 995         end
 996 end
 997
 998 function interface.get_type_i18n(self)
 999         local x = self:type()
1000         if x == "wifi" then
1001                 return i18n.translate("Wireless Adapter")
1002         elseif x == "bridge" then
1003                 return i18n.translate("Bridge")
1004         elseif x == "switch" then
1005                 return i18n.translate("Ethernet Switch")
1006         elseif x == "vlan" then
1007                 return i18n.translate("VLAN Interface")
1008         elseif x == "tunnel" then
1009                 return i18n.translate("Tunnel Interface")
1010         else
1011                 return i18n.translate("Ethernet Adapter")
1012         end
1013 end
1014
1015 function interface.adminlink(self)
1016         if self.wif then
1017                 return self.wif:adminlink()
1018         end
1019 end
1020
1021 function interface.ports(self)
1022         if self.br then
1023                 local iface
1024                 local ifaces = { }
1025                 for _, iface in ipairs(self.br.ifnames) do
1026                         ifaces[#ifaces+1] = interface(iface.name)
1027                 end
1028                 return ifaces
1029         end
1030 end
1031
1032 function interface.bridge_id(self)
1033         if self.br then
1034                 return self.br.id
1035         else
1036                 return nil
1037         end
1038 end
1039
1040 function interface.bridge_stp(self)
1041         if self.br then
1042                 return self.br.stp
1043         else
1044                 return false
1045         end
1046 end
1047
1048 function interface.is_up(self)
1049         if self.wif then
1050                 return self.wif:is_up()
1051         else
1052                 return self.dev and self.dev.flags and self.dev.flags.up or false
1053         end
1054 end
1055
1056 function interface.is_bridge(self)
1057         return (self:type() == "bridge")
1058 end
1059
1060 function interface.is_bridgeport(self)
1061         return self.dev and self.dev.bridge and true or false
1062 end
1063
1064 function interface.tx_bytes(self)
1065         return self.dev and self.dev.stats
1066                 and self.dev.stats.tx_bytes or 0
1067 end
1068
1069 function interface.rx_bytes(self)
1070         return self.dev and self.dev.stats
1071                 and self.dev.stats.rx_bytes or 0
1072 end
1073
1074 function interface.tx_packets(self)
1075         return self.dev and self.dev.stats
1076                 and self.dev.stats.tx_packets or 0
1077 end
1078
1079 function interface.rx_packets(self)
1080         return self.dev and self.dev.stats
1081                 and self.dev.stats.rx_packets or 0
1082 end
1083
1084 function interface.get_network(self)
1085         if not self.network then
1086                 if self.dev and self.dev.network then
1087                         self.network = _M:get_network(self.dev.network)
1088                 end
1089         end
1090
1091         if not self.network then
1092                 local net
1093                 for _, net in ipairs(_M:get_networks()) do
1094                         if net:contains_interface(self.ifname) or
1095                            net:ifname() == self.ifname
1096                         then
1097                                 self.network = net
1098                                 return net
1099                         end
1100                 end
1101         else
1102                 return self.network
1103         end
1104 end
1105
1106 function interface.get_wifinet(self)
1107         return self.wif
1108 end
1109
1110
1111 wifidev = utl.class()
1112
1113 function wifidev.__init__(self, dev)
1114         self.sid    = dev
1115         self.iwinfo = dev and sys.wifi.getiwinfo(dev) or { }
1116 end
1117
1118 function wifidev.get(self, opt)
1119         return _get("wireless", self.sid, opt)
1120 end
1121
1122 function wifidev.set(self, opt, val)
1123         return _set("wireless", self.sid, opt, val)
1124 end
1125
1126 function wifidev.name(self)
1127         return self.sid
1128 end
1129
1130 function wifidev.hwmodes(self)
1131         local l = self.iwinfo.hwmodelist
1132         if l and next(l) then
1133                 return l
1134         else
1135                 return { b = true, g = true }
1136         end
1137 end
1138
1139 function wifidev.get_i18n(self)
1140         local t = "Generic"
1141         if self.iwinfo.type == "wl" then
1142                 t = "Broadcom"
1143         elseif self.iwinfo.type == "madwifi" then
1144                 t = "Atheros"
1145         end
1146
1147         local m = ""
1148         local l = self:hwmodes()
1149         if l.a then m = m .. "a" end
1150         if l.b then m = m .. "b" end
1151         if l.g then m = m .. "g" end
1152         if l.n then m = m .. "n" end
1153
1154         return "%s 802.11%s Wireless Controller (%s)" %{ t, m, self:name() }
1155 end
1156
1157 function wifidev.is_up(self)
1158         local up = false
1159
1160         _uci_state:foreach("wireless", "wifi-iface",
1161                 function(s)
1162                         if s.device == self.sid then
1163                                 if s.up == "1" then
1164                                         up = true
1165                                         return false
1166                                 end
1167                         end
1168                 end)
1169
1170         return up
1171 end
1172
1173 function wifidev.get_wifinet(self, net)
1174         if _uci_real:get("wireless", net) == "wifi-iface" then
1175                 return wifinet(net)
1176         else
1177                 local wnet = _wifi_lookup(net)
1178                 if wnet then
1179                         return wifinet(wnet)
1180                 end
1181         end
1182 end
1183
1184 function wifidev.get_wifinets(self)
1185         local nets = { }
1186
1187         _uci_real:foreach("wireless", "wifi-iface",
1188                 function(s)
1189                         if s.device == self.sid then
1190                                 nets[#nets+1] = wifinet(s['.name'])
1191                         end
1192                 end)
1193
1194         return nets
1195 end
1196
1197 function wifidev.add_wifinet(self, options)
1198         options = options or { }
1199         options.device = self.sid
1200
1201         local wnet = _uci_real:section("wireless", "wifi-iface", nil, options)
1202         if wnet then
1203                 return wifinet(wnet, options)
1204         end
1205 end
1206
1207 function wifidev.del_wifinet(self, net)
1208         if utl.instanceof(net, wifinet) then
1209                 net = net.sid
1210         elseif _uci_real:get("wireless", net) ~= "wifi-iface" then
1211                 net = _wifi_lookup(net)
1212         end
1213
1214         if net and _uci_real:get("wireless", net, "device") == self.sid then
1215                 _uci_real:delete("wireless", net)
1216                 return true
1217         end
1218
1219         return false
1220 end
1221
1222
1223 wifinet = utl.class()
1224
1225 function wifinet.__init__(self, net, data)
1226         self.sid = net
1227
1228         local num = { }
1229         local netid
1230         _uci_real:foreach("wireless", "wifi-iface",
1231                 function(s)
1232                         if s.device then
1233                                 num[s.device] = num[s.device] and num[s.device] + 1 or 1
1234                                 if s['.name'] == self.sid then
1235                                         netid = "%s.network%d" %{ s.device, num[s.device] }
1236                                         return false
1237                                 end
1238                         end
1239                 end)
1240
1241         local dev = _uci_state:get("wireless", self.sid, "ifname") or netid
1242
1243         self.netid  = netid
1244         self.wdev   = dev
1245         self.iwinfo = dev and sys.wifi.getiwinfo(dev) or { }
1246         self.iwdata = data or _uci_state:get_all("wireless", self.sid) or
1247                 _uci_real:get_all("wireless", self.sid) or { }
1248 end
1249
1250 function wifinet.get(self, opt)
1251         return _get("wireless", self.sid, opt)
1252 end
1253
1254 function wifinet.set(self, opt, val)
1255         return _set("wireless", self.sid, opt, val)
1256 end
1257
1258 function wifinet.mode(self)
1259         return _uci_state:get("wireless", self.sid, "mode") or "ap"
1260 end
1261
1262 function wifinet.ssid(self)
1263         return _uci_state:get("wireless", self.sid, "ssid")
1264 end
1265
1266 function wifinet.bssid(self)
1267         return _uci_state:get("wireless", self.sid, "bssid")
1268 end
1269
1270 function wifinet.network(self)
1271         return _uci_state:get("wifinet", self.sid, "network")
1272 end
1273
1274 function wifinet.id(self)
1275         return self.netid
1276 end
1277
1278 function wifinet.name(self)
1279         return self.sid
1280 end
1281
1282 function wifinet.ifname(self)
1283         local ifname = self.iwinfo.ifname
1284         if not ifname or ifname:match("^wifi%d") or ifname:match("^radio%d") then
1285                 ifname = self.wdev
1286         end
1287         return ifname
1288 end
1289
1290 function wifinet.get_device(self)
1291         if self.iwdata.device then
1292                 return wifidev(self.iwdata.device)
1293         end
1294 end
1295
1296 function wifinet.is_up(self)
1297         return (self.iwdata.up == "1")
1298 end
1299
1300 function wifinet.active_mode(self)
1301         local m = _stror(self.iwinfo.mode, self.iwdata.mode) or "ap"
1302
1303         if     m == "ap"      then m = "Master"
1304         elseif m == "sta"     then m = "Client"
1305         elseif m == "adhoc"   then m = "Ad-Hoc"
1306         elseif m == "mesh"    then m = "Mesh"
1307         elseif m == "monitor" then m = "Monitor"
1308         end
1309
1310         return m
1311 end
1312
1313 function wifinet.active_mode_i18n(self)
1314         return i18n.translate(self:active_mode())
1315 end
1316
1317 function wifinet.active_ssid(self)
1318         return _stror(self.iwinfo.ssid, self.iwdata.ssid)
1319 end
1320
1321 function wifinet.active_bssid(self)
1322         return _stror(self.iwinfo.bssid, self.iwdata.bssid) or "00:00:00:00:00:00"
1323 end
1324
1325 function wifinet.active_encryption(self)
1326         local enc = self.iwinfo and self.iwinfo.encryption
1327         return enc and enc.description or "-"
1328 end
1329
1330 function wifinet.assoclist(self)
1331         return self.iwinfo.assoclist or { }
1332 end
1333
1334 function wifinet.frequency(self)
1335         local freq = self.iwinfo.frequency
1336         if freq and freq > 0 then
1337                 return "%.03f" % (freq / 1000)
1338         end
1339 end
1340
1341 function wifinet.bitrate(self)
1342         local rate = self.iwinfo.bitrate
1343         if rate and rate > 0 then
1344                 return (rate / 1000)
1345         end
1346 end
1347
1348 function wifinet.channel(self)
1349         return self.iwinfo.channel or
1350                 tonumber(_uci_state:get("wireless", self.iwdata.device, "channel"))
1351 end
1352
1353 function wifinet.signal(self)
1354         return self.iwinfo.signal or 0
1355 end
1356
1357 function wifinet.noise(self)
1358         return self.iwinfo.noise or 0
1359 end
1360
1361 function wifinet.country(self)
1362         return self.iwinfo.country or "00"
1363 end
1364
1365 function wifinet.txpower(self)
1366         local pwr = (self.iwinfo.txpower or 0)
1367         return pwr + self:txpower_offset()
1368 end
1369
1370 function wifinet.txpower_offset(self)
1371         return self.iwinfo.txpower_offset or 0
1372 end
1373
1374 function wifinet.signal_level(self, s, n)
1375         if self:active_bssid() ~= "00:00:00:00:00:00" then
1376                 local signal = s or self:signal()
1377                 local noise  = n or self:noise()
1378
1379                 if signal < 0 and noise < 0 then
1380                         local snr = -1 * (noise - signal)
1381                         return math.floor(snr / 5)
1382                 else
1383                         return 0
1384                 end
1385         else
1386                 return -1
1387         end
1388 end
1389
1390 function wifinet.signal_percent(self)
1391         local qc = self.iwinfo.quality or 0
1392         local qm = self.iwinfo.quality_max or 0
1393
1394         if qc > 0 and qm > 0 then
1395                 return math.floor((100 / qm) * qc)
1396         else
1397                 return 0
1398         end
1399 end
1400
1401 function wifinet.shortname(self)
1402         return "%s %q" %{
1403                 i18n.translate(self:active_mode()),
1404                 self:active_ssid() or self:active_bssid()
1405         }
1406 end
1407
1408 function wifinet.get_i18n(self)
1409         return "%s: %s %q (%s)" %{
1410                 i18n.translate("Wireless Network"),
1411                 i18n.translate(self:active_mode()),
1412                 self:active_ssid() or self:active_bssid(),
1413                 self:ifname()
1414         }
1415 end
1416
1417 function wifinet.adminlink(self)
1418         return dsp.build_url("admin", "network", "wireless", self.netid)
1419 end
1420
1421 function wifinet.get_network(self)
1422         local net = tostring(self.iwdata.network)
1423         if net and _uci_real:get("network", net) == "interface" then
1424                 return network(net)
1425         end
1426 end
1427
1428 function wifinet.get_interface(self)
1429         return interface(self:ifname())
1430 end
1431
1432
1433 -- setup base protocols
1434 _M:register_protocol("static")
1435 _M:register_protocol("dhcp")
1436 _M:register_protocol("none")
1437
1438 -- load protocol extensions
1439 local exts = nfs.dir(utl.libpath() .. "/model/network")
1440 if exts then
1441         local ext
1442         for ext in exts do
1443                 if ext:match("%.lua$") then
1444                         require("luci.model.network." .. ext:gsub("%.lua$", ""))
1445                 end
1446         end
1447 end