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 bus = require "ubus"
  29 local nxo = require "nixio"
  30 local nfs = require "nixio.fs"
  31 local ipc = require "luci.ip"
  32 local sys = require "luci.sys"
  33 local utl = require "luci.util"
  34 local dsp = require "luci.dispatcher"
  35 local uci = require "luci.model.uci"
  36
  37 module "luci.model.network"
  38
  39
  40 IFACE_PATTERNS_VIRTUAL  = { }
  41 IFACE_PATTERNS_IGNORE   = { "^wmaster%d", "^wifi%d", "^hwsim%d", "^imq%d", "^ifb%d", "^mon%.wlan%d", "^sit%d", "^lo$" }
  42 IFACE_PATTERNS_WIRELESS = { "^wlan%d", "^wl%d", "^ath%d", "^%w+%.network%d" }
  43
  44
  45 protocol = utl.class()
  46
  47 local _protocols = { }
  48
  49 local _interfaces, _bridge, _switch, _tunnel
  50 local _ubus, _ubusnetcache, _ubusdevcache
  51 local _uci_real, _uci_state
  52
  53 function _filter(c, s, o, r)
  54         local val = _uci_real:get(c, s, o)
  55         if val then
  56                 local l = { }
  57                 if type(val) == "string" then
  58                         for val in val:gmatch("%S+") do
  59                                 if val ~= r then
  60                                         l[#l+1] = val
  61                                 end
  62                         end
  63                         if #l > 0 then
  64                                 _uci_real:set(c, s, o, table.concat(l, " "))
  65                         else
  66                                 _uci_real:delete(c, s, o)
  67                         end
  68                 elseif type(val) == "table" then
  69                         for _, val in ipairs(val) do
  70                                 if val ~= r then
  71                                         l[#l+1] = val
  72                                 end
  73                         end
  74                         if #l > 0 then
  75                                 _uci_real:set(c, s, o, l)
  76                         else
  77                                 _uci_real:delete(c, s, o)
  78                         end
  79                 end
  80         end
  81 end
  82
  83 function _append(c, s, o, a)
  84         local val = _uci_real:get(c, s, o) or ""
  85         if type(val) == "string" then
  86                 local l = { }
  87                 for val in val:gmatch("%S+") do
  88                         if val ~= a then
  89                                 l[#l+1] = val
  90                         end
  91                 end
  92                 l[#l+1] = a
  93                 _uci_real:set(c, s, o, table.concat(l, " "))
  94         elseif type(val) == "table" then
  95                 local l = { }
  96                 for _, val in ipairs(val) do
  97                         if val ~= a then
  98                                 l[#l+1] = val
  99                         end
 100                 end
 101                 l[#l+1] = a
 102                 _uci_real:set(c, s, o, l)
 103         end
 104 end
 105
 106 function _stror(s1, s2)
 107         if not s1 or #s1 == 0 then
 108                 return s2 and #s2 > 0 and s2
 109         else
 110                 return s1
 111         end
 112 end
 113
 114 function _get(c, s, o)
 115         return _uci_real:get(c, s, o)
 116 end
 117
 118 function _set(c, s, o, v)
 119         if v ~= nil then
 120                 if type(v) == "boolean" then v = v and "1" or "0" end
 121                 return _uci_real:set(c, s, o, v)
 122         else
 123                 return _uci_real:delete(c, s, o)
 124         end
 125 end
 126
 127 function _wifi_iface(x)
 128         local _, p
 129         for _, p in ipairs(IFACE_PATTERNS_WIRELESS) do
 130                 if x:match(p) then
 131                         return true
 132                 end
 133         end
 134         return false
 135 end
 136
 137 function _wifi_lookup(ifn)
 138         -- got a radio#.network# pseudo iface, locate the corresponding section
 139         local radio, ifnidx = ifn:match("^(%w+)%.network(%d+)$")
 140         if radio and ifnidx then
 141                 local sid = nil
 142                 local num = 0
 143
 144                 ifnidx = tonumber(ifnidx)
 145                 _uci_real:foreach("wireless", "wifi-iface",
 146                         function(s)
 147                                 if s.device == radio then
 148                                         num = num + 1
 149                                         if num == ifnidx then
 150                                                 sid = s['.name']
 151                                                 return false
 152                                         end
 153                                 end
 154                         end)
 155
 156                 return sid
 157
 158         -- looks like wifi, try to locate the section via state vars
 159         elseif _wifi_iface(ifn) then
 160                 local sid = nil
 161
 162                 _uci_state:foreach("wireless", "wifi-iface",
 163                         function(s)
 164                                 if s.ifname == ifn then
 165                                         sid = s['.name']
 166                                         return false
 167                                 end
 168                         end)
 169
 170                 return sid
 171         end
 172 end
 173
 174 function _iface_virtual(x)
 175         local _, p
 176         for _, p in ipairs(IFACE_PATTERNS_VIRTUAL) do
 177                 if x:match(p) then
 178                         return true
 179                 end
 180         end
 181         return false
 182 end
 183
 184 function _iface_ignore(x)
 185         local _, p
 186         for _, p in ipairs(IFACE_PATTERNS_IGNORE) do
 187                 if x:match(p) then
 188                         return true
 189                 end
 190         end
 191         return _iface_virtual(x)
 192 end
 193
 194
 195 function init(cursor)
 196         _uci_real  = cursor or _uci_real or uci.cursor()
 197         _uci_state = _uci_real:substate()
 198
 199         _interfaces = { }
 200         _bridge     = { }
 201         _switch     = { }
 202         _tunnel     = { }
 203
 204         _ubus         = bus.connect()
 205         _ubusnetcache = { }
 206         _ubusdevcache = { }
 207
 208         -- read interface information
 209         local n, i
 210         for n, i in ipairs(nxo.getifaddrs()) do
 211                 local name = i.name:match("[^:]+")
 212                 local prnt = name:match("^([^%.]+)%.")
 213
 214                 if _iface_virtual(name) then
 215                         _tunnel[name] = true
 216                 end
 217
 218                 if _tunnel[name] or not _iface_ignore(name) then
 219                         _interfaces[name] = _interfaces[name] or {
 220                                 idx      = i.ifindex or n,
 221                                 name     = name,
 222                                 rawname  = i.name,
 223                                 flags    = { },
 224                                 ipaddrs  = { },
 225                                 ip6addrs = { }
 226                         }
 227
 228                         if prnt then
 229                                 _switch[name] = true
 230                                 _switch[prnt] = true
 231                         end
 232
 233                         if i.family == "packet" then
 234                                 _interfaces[name].flags   = i.flags
 235                                 _interfaces[name].stats   = i.data
 236                                 _interfaces[name].macaddr = i.addr
 237                         elseif i.family == "inet" then
 238                                 _interfaces[name].ipaddrs[#_interfaces[name].ipaddrs+1] = ipc.IPv4(i.addr, i.netmask)
 239                         elseif i.family == "inet6" then
 240                                 _interfaces[name].ip6addrs[#_interfaces[name].ip6addrs+1] = ipc.IPv6(i.addr, i.netmask)
 241                         end
 242                 end
 243         end
 244
 245         -- read bridge informaton
 246         local b, l
 247         for l in utl.execi("brctl show") do
 248                 if not l:match("STP") then
 249                         local r = utl.split(l, "%s+", nil, true)
 250                         if #r == 4 then
 251                                 b = {
 252                                         name    = r[1],
 253                                         id      = r[2],
 254                                         stp     = r[3] == "yes",
 255                                         ifnames = { _interfaces[r[4]] }
 256                                 }
 257                                 if b.ifnames[1] then
 258                                         b.ifnames[1].bridge = b
 259                                 end
 260                                 _bridge[r[1]] = b
 261                         elseif b then
 262                                 b.ifnames[#b.ifnames+1] = _interfaces[r[2]]
 263                                 b.ifnames[#b.ifnames].bridge = b
 264                         end
 265                 end
 266         end
 267
 268         return _M
 269 end
 270
 271 function save(self, ...)
 272         _uci_real:save(...)
 273         _uci_real:load(...)
 274 end
 275
 276 function commit(self, ...)
 277         _uci_real:commit(...)
 278         _uci_real:load(...)
 279 end
 280
 281 function ifnameof(self, x)
 282         if utl.instanceof(x, interface) then
 283                 return x:name()
 284         elseif utl.instanceof(x, protocol) then
 285                 return x:ifname()
 286         elseif type(x) == "string" then
 287                 return x:match("^[^:]+")
 288         end
 289 end
 290
 291 function get_protocol(self, protoname, netname)
 292         local v = _protocols[protoname]
 293         if v then
 294                 return v(netname or "__dummy__")
 295         end
 296 end
 297
 298 function get_protocols(self)
 299         local p = { }
 300         local _, v
 301         for _, v in ipairs(_protocols) do
 302                 p[#p+1] = v("__dummy__")
 303         end
 304         return p
 305 end
 306
 307 function register_protocol(self, protoname)
 308         local proto = utl.class(protocol)
 309
 310         function proto.__init__(self, name)
 311                 self.sid = name
 312         end
 313
 314         function proto.proto(self)
 315                 return protoname
 316         end
 317
 318         _protocols[#_protocols+1] = proto
 319         _protocols[protoname]     = proto
 320
 321         return proto
 322 end
 323
 324 function register_pattern_virtual(self, pat)
 325         IFACE_PATTERNS_VIRTUAL[#IFACE_PATTERNS_VIRTUAL+1] = pat
 326 end
 327
 328
 329 function has_ipv6(self)
 330         return nfs.access("/proc/net/ipv6_route")
 331 end
 332
 333 function add_network(self, n, options)
 334         local oldnet = self:get_network(n)
 335         if n and #n > 0 and n:match("^[a-zA-Z0-9_]+$") and not oldnet then
 336                 if _uci_real:section("network", "interface", n, options) then
 337                         return network(n)
 338                 end
 339         elseif oldnet and oldnet:is_empty() then
 340                 if options then
 341                         local k, v
 342                         for k, v in pairs(options) do
 343                                 oldnet:set(k, v)
 344                         end
 345                 end
 346                 return oldnet
 347         end
 348 end
 349
 350 function get_network(self, n)
 351         if n and _uci_real:get("network", n) == "interface" then
 352                 return network(n)
 353         end
 354 end
 355
 356 function get_networks(self)
 357         local nets = { }
 358         local nls = { }
 359
 360         _uci_real:foreach("network", "interface",
 361                 function(s)
 362                         nls[s['.name']] = network(s['.name'])
 363                 end)
 364
 365         local n
 366         for n in utl.kspairs(nls) do
 367                 nets[#nets+1] = nls[n]
 368         end
 369
 370         return nets
 371 end
 372
 373 function del_network(self, n)
 374         local r = _uci_real:delete("network", n)
 375         if r then
 376                 _uci_real:delete_all("network", "alias",
 377                         function(s) return (s.interface == n) end)
 378
 379                 _uci_real:delete_all("network", "route",
 380                         function(s) return (s.interface == n) end)
 381
 382                 _uci_real:delete_all("network", "route6",
 383                         function(s) return (s.interface == n) end)
 384
 385                 _uci_real:foreach("wireless", "wifi-iface",
 386                         function(s)
 387                                 if s.network == n then
 388                                         _uci_real:delete("wireless", s['.name'], "network")
 389                                 end
 390                         end)
 391         end
 392         return r
 393 end
 394
 395 function rename_network(self, old, new)
 396         local r
 397         if new and #new > 0 and new:match("^[a-zA-Z0-9_]+$") and not self:get_network(new) then
 398                 r = _uci_real:section("network", "interface", new, _uci_real:get_all("network", old))
 399
 400                 if r then
 401                         _uci_real:foreach("network", "alias",
 402                                 function(s)
 403                                         if s.interface == old then
 404                                                 _uci_real:set("network", s['.name'], "interface", new)
 405                                         end
 406                                 end)
 407
 408                         _uci_real:foreach("network", "route",
 409                                 function(s)
 410                                         if s.interface == old then
 411                                                 _uci_real:set("network", s['.name'], "interface", new)
 412                                         end
 413                                 end)
 414
 415                         _uci_real:foreach("network", "route6",
 416                                 function(s)
 417                                         if s.interface == old then
 418                                                 _uci_real:set("network", s['.name'], "interface", new)
 419                                         end
 420                                 end)
 421
 422                         _uci_real:foreach("wireless", "wifi-iface",
 423                                 function(s)
 424                                         if s.network == old then
 425                                                 _uci_real:set("wireless", s['.name'], "network", new)
 426                                         end
 427                                 end)
 428
 429                         _uci_real:delete("network", old)
 430                 end
 431         end
 432         return r or false
 433 end
 434
 435 function get_interface(self, i)
 436         if _interfaces[i] or _wifi_iface(i) then
 437                 return interface(i)
 438         else
 439                 local ifc
 440                 local num = { }
 441                 _uci_real:foreach("wireless", "wifi-iface",
 442                         function(s)
 443                                 if s.device then
 444                                         num[s.device] = num[s.device] and num[s.device] + 1 or 1
 445                                         if s['.name'] == i then
 446                                                 ifc = interface(
 447                                                         "%s.network%d" %{s.device, num[s.device] })
 448                                                 return false
 449                                         end
 450                                 end
 451                         end)
 452                 return ifc
 453         end
 454 end
 455
 456 function get_interfaces(self)
 457         local iface
 458         local ifaces = { }
 459         local seen = { }
 460         local nfs = { }
 461         local baseof = { }
 462
 463         -- find normal interfaces
 464         _uci_real:foreach("network", "interface",
 465                 function(s)
 466                         for iface in utl.imatch(s.ifname) do
 467                                 if not _iface_ignore(iface) and not _wifi_iface(iface) then
 468                                         seen[iface] = true
 469                                         nfs[iface] = interface(iface)
 470                                 end
 471                         end
 472                 end)
 473
 474         for iface in utl.kspairs(_interfaces) do
 475                 if not (seen[iface] or _iface_ignore(iface) or _wifi_iface(iface)) then
 476                         nfs[iface] = interface(iface)
 477                 end
 478         end
 479
 480         -- find vlan interfaces
 481         _uci_real:foreach("network", "switch_vlan",
 482                 function(s)
 483                         if not s.device then
 484                                 return
 485                         end
 486
 487                         local base = baseof[s.device]
 488                         if not base then
 489                                 if not s.device:match("^eth%d") then
 490                                         local l
 491                                         for l in utl.execi("swconfig dev %q help 2>/dev/null" % s.device) do
 492                                                 if not base then
 493                                                         base = l:match("^%w+: (%w+)")
 494                                                 end
 495                                         end
 496                                         if not base or not base:match("^eth%d") then
 497                                                 base = "eth0"
 498                                         end
 499                                 else
 500                                         base = s.device
 501                                 end
 502                                 baseof[s.device] = base
 503                         end
 504
 505                         local vid = tonumber(s.vid or s.vlan)
 506                         if vid ~= nil and vid >= 0 and vid <= 4095 then
 507                                 local iface = "%s.%d" %{ base, vid }
 508                                 if not seen[iface] then
 509                                         seen[iface] = true
 510                                         nfs[iface] = interface(iface)
 511                                 end
 512                         end
 513                 end)
 514
 515         for iface in utl.kspairs(nfs) do
 516                 ifaces[#ifaces+1] = nfs[iface]
 517         end
 518
 519         -- find wifi interfaces
 520         local num = { }
 521         local wfs = { }
 522         _uci_real:foreach("wireless", "wifi-iface",
 523                 function(s)
 524                         if s.device then
 525                                 num[s.device] = num[s.device] and num[s.device] + 1 or 1
 526                                 local i = "%s.network%d" %{ s.device, num[s.device] }
 527                                 wfs[i] = interface(i)
 528                         end
 529                 end)
 530
 531         for iface in utl.kspairs(wfs) do
 532                 ifaces[#ifaces+1] = wfs[iface]
 533         end
 534
 535         return ifaces
 536 end
 537
 538 function ignore_interface(self, x)
 539         return _iface_ignore(x)
 540 end
 541
 542 function get_wifidev(self, dev)
 543         if _uci_real:get("wireless", dev) == "wifi-device" then
 544                 return wifidev(dev)
 545         end
 546 end
 547
 548 function get_wifidevs(self)
 549         local devs = { }
 550         local wfd  = { }
 551
 552         _uci_real:foreach("wireless", "wifi-device",
 553                 function(s) wfd[#wfd+1] = s['.name'] end)
 554
 555         local dev
 556         for _, dev in utl.vspairs(wfd) do
 557                 devs[#devs+1] = wifidev(dev)
 558         end
 559
 560         return devs
 561 end
 562
 563 function get_wifinet(self, net)
 564         local wnet = _wifi_lookup(net)
 565         if wnet then
 566                 return wifinet(wnet)
 567         end
 568 end
 569
 570 function add_wifinet(self, net, options)
 571         if type(options) == "table" and options.device and
 572                 _uci_real:get("wireless", options.device) == "wifi-device"
 573         then
 574                 local wnet = _uci_real:section("wireless", "wifi-iface", nil, options)
 575                 return wifinet(wnet)
 576         end
 577 end
 578
 579 function del_wifinet(self, net)
 580         local wnet = _wifi_lookup(net)
 581         if wnet then
 582                 _uci_real:delete("wireless", wnet)
 583                 return true
 584         end
 585         return false
 586 end
 587
 588
 589 function network(name, proto)
 590         if name then
 591                 local p = proto or _uci_real:get("network", name, "proto")
 592                 local c = p and _protocols[p] or protocol
 593                 return c(name)
 594         end
 595 end
 596
 597 function protocol.__init__(self, name)
 598         self.sid = name
 599 end
 600
 601 function protocol._get(self, opt)
 602         local v = _uci_real:get("network", self.sid, opt)
 603         if type(v) == "table" then
 604                 return table.concat(v, " ")
 605         end
 606         return v or ""
 607 end
 608
 609 function protocol._ubus(self, field)
 610         if not _ubusnetcache[self.sid] then
 611                 _ubusnetcache[self.sid] = _ubus:call("network.interface.%s" % self.sid,
 612                                                      "status", { })
 613         end
 614         if _ubusnetcache[self.sid] and field then
 615                 return _ubusnetcache[self.sid][field]
 616         end
 617         return _ubusnetcache[self.sid]
 618 end
 619
 620 function protocol.get(self, opt)
 621         return _get("network", self.sid, opt)
 622 end
 623
 624 function protocol.set(self, opt, val)
 625         return _set("network", self.sid, opt, val)
 626 end
 627
 628 function protocol.ifname(self)
 629         local ifname
 630         if self:is_floating() then
 631                 ifname = self:_ubus("l3_device")
 632         else
 633                 ifname = self:_ubus("device")
 634         end
 635         if not ifname then
 636                 local num = { }
 637                 _uci_real:foreach("wireless", "wifi-iface",
 638                         function(s)
 639                                 if s.device then
 640                                         num[s.device] = num[s.device]
 641                                                 and num[s.device] + 1 or 1
 642
 643                                         if s.network == self.sid then
 644                                                 ifname = "%s.network%d" %{ s.device, num[s.device] }
 645                                                 return false
 646                                         end
 647                                 end
 648                         end)
 649         end
 650         return ifname
 651 end
 652
 653 function protocol.proto(self)
 654         return "none"
 655 end
 656
 657 function protocol.get_i18n(self)
 658         local p = self:proto()
 659         if p == "none" then
 660                 return i18n.translate("Unmanaged")
 661         elseif p == "static" then
 662                 return i18n.translate("Static address")
 663         elseif p == "dhcp" then
 664                 return i18n.translate("DHCP client")
 665         else
 666                 return i18n.translate("Unknown")
 667         end
 668 end
 669
 670 function protocol.type(self)
 671         return self:_get("type")
 672 end
 673
 674 function protocol.name(self)
 675         return self.sid
 676 end
 677
 678 function protocol.uptime(self)
 679         return self:_ubus("uptime") or 0
 680 end
 681
 682 function protocol.expires(self)
 683         local a = tonumber(_uci_state:get("network", self.sid, "lease_acquired"))
 684         local l = tonumber(_uci_state:get("network", self.sid, "lease_lifetime"))
 685         if a and l then
 686                 l = l - (nxo.sysinfo().uptime - a)
 687                 return l > 0 and l or 0
 688         end
 689         return -1
 690 end
 691
 692 function protocol.metric(self)
 693         return tonumber(_uci_state:get("network", self.sid, "metric")) or 0
 694 end
 695
 696 function protocol.ipaddr(self)
 697         local addrs = self:_ubus("ipv4-address")
 698         return addrs and #addrs > 0 and addrs[1].address
 699 end
 700
 701 function protocol.netmask(self)
 702         local addrs = self:_ubus("ipv4-address")
 703         return addrs and #addrs > 0 and
 704                 ipc.IPv4("0.0.0.0/%d" % addrs[1].mask):mask():string()
 705 end
 706
 707 function protocol.gwaddr(self)
 708         local _, route
 709         for _, route in ipairs(self:_ubus("route") or { }) do
 710                 if route.target == "0.0.0.0" and route.mask == 0 then
 711                         return route.nexthop
 712                 end
 713         end
 714 end
 715
 716 function protocol.dnsaddrs(self)
 717         local dns = { }
 718         local _, addr
 719         for _, addr in ipairs(self:_ubus("dns-server") or { }) do
 720                 if not addr:match(":") then
 721                         dns[#dns+1] = addr
 722                 end
 723         end
 724         return dns
 725 end
 726
 727 function protocol.ip6addr(self)
 728         local addrs = self:_ubus("ipv6-address")
 729         return addrs and #addrs > 0
 730                 and "%s/%d" %{ addrs[1].address, addrs[1].mask }
 731 end
 732
 733 function protocol.gw6addr(self)
 734         local _, route
 735         for _, route in ipairs(self:_ubus("route") or { }) do
 736                 if route.target == "::" and route.mask == 0 then
 737                         return ipc.IPv6(route.nexthop):string()
 738                 end
 739         end
 740 end
 741
 742 function protocol.dns6addrs(self)
 743         local dns = { }
 744         local _, addr
 745         for _, addr in ipairs(self:_ubus("dns-server") or { }) do
 746                 if addr:match(":") then
 747                         dns[#dns+1] = addr
 748                 end
 749         end
 750         return dns
 751 end
 752
 753 function protocol.is_bridge(self)
 754         return (not self:is_virtual() and self:type() == "bridge")
 755 end
 756
 757 function protocol.opkg_package(self)
 758         return nil
 759 end
 760
 761 function protocol.is_installed(self)
 762         return true
 763 end
 764
 765 function protocol.is_virtual(self)
 766         return false
 767 end
 768
 769 function protocol.is_floating(self)
 770         return false
 771 end
 772
 773 function protocol.is_empty(self)
 774         if self:is_floating() then
 775                 return false
 776         else
 777                 local rv = true
 778
 779                 if (self:_get("ifname") or ""):match("%S+") then
 780                         rv = false
 781                 end
 782
 783                 _uci_real:foreach("wireless", "wifi-iface",
 784                         function(s)
 785                                 if s.network == self.sid then
 786                                         rv = false
 787                                         return false
 788                                 end
 789                         end)
 790
 791                 return rv
 792         end
 793 end
 794
 795 function protocol.add_interface(self, ifname)
 796         ifname = _M:ifnameof(ifname)
 797         if ifname and not self:is_floating() then
 798                 -- if its a wifi interface, change its network option
 799                 local wif = _wifi_lookup(ifname)
 800                 if wif then
 801                         _append("wireless", wif, "network", self.sid)
 802
 803                 -- add iface to our iface list
 804                 else
 805                         _append("network", self.sid, "ifname", ifname)
 806                 end
 807         end
 808 end
 809
 810 function protocol.del_interface(self, ifname)
 811         ifname = _M:ifnameof(ifname)
 812         if ifname and not self:is_floating() then
 813                 -- if its a wireless interface, clear its network option
 814                 local wif = _wifi_lookup(ifname)
 815                 if wif then _filter("wireless", wif, "network", self.sid) end
 816
 817                 -- remove the interface
 818                 _filter("network", self.sid, "ifname", ifname)
 819         end
 820 end
 821
 822 function protocol.get_interface(self)
 823         if self:is_virtual() then
 824                 _tunnel[self:proto() .. "-" .. self.sid] = true
 825                 return interface(self:proto() .. "-" .. self.sid, self)
 826         elseif self:is_bridge() then
 827                 _bridge["br-" .. self.sid] = true
 828                 return interface("br-" .. self.sid, self)
 829         else
 830                 local ifn = nil
 831                 local num = { }
 832                 for ifn in utl.imatch(_uci_real:get("network", self.sid, "ifname")) do
 833                         ifn = ifn:match("^[^:/]+")
 834                         return ifn and interface(ifn, self)
 835                 end
 836                 ifn = nil
 837                 _uci_real:foreach("wireless", "wifi-iface",
 838                         function(s)
 839                                 if s.device then
 840                                         num[s.device] = num[s.device] and num[s.device] + 1 or 1
 841                                         if s.network == self.sid then
 842                                                 ifn = "%s.network%d" %{ s.device, num[s.device] }
 843                                                 return false
 844                                         end
 845                                 end
 846                         end)
 847                 return ifn and interface(ifn, self)
 848         end
 849 end
 850
 851 function protocol.get_interfaces(self)
 852         if self:is_bridge() or (self:is_virtual() and not self:is_floating()) then
 853                 local ifaces = { }
 854
 855                 local ifn
 856                 local nfs = { }
 857                 for ifn in utl.imatch(self:get("ifname")) do
 858                         ifn = ifn:match("^[^:/]+")
 859                         nfs[ifn] = interface(ifn, self)
 860                 end
 861
 862                 for ifn in utl.kspairs(nfs) do
 863                         ifaces[#ifaces+1] = nfs[ifn]
 864                 end
 865
 866                 local num = { }
 867                 local wfs = { }
 868                 _uci_real:foreach("wireless", "wifi-iface",
 869                         function(s)
 870                                 if s.device then
 871                                         num[s.device] = num[s.device] and num[s.device] + 1 or 1
 872                                         if s.network == self.sid then
 873                                                 ifn = "%s.network%d" %{ s.device, num[s.device] }
 874                                                 wfs[ifn] = interface(ifn, self)
 875                                         end
 876                                 end
 877                         end)
 878
 879                 for ifn in utl.kspairs(wfs) do
 880                         ifaces[#ifaces+1] = wfs[ifn]
 881                 end
 882
 883                 return ifaces
 884         end
 885 end
 886
 887 function protocol.contains_interface(self, ifname)
 888         ifname = _M:ifnameof(ifname)
 889         if not ifname then
 890                 return false
 891         elseif self:is_virtual() and self:proto() .. "-" .. self.sid == ifname then
 892                 return true
 893         elseif self:is_bridge() and "br-" .. self.sid == ifname then
 894                 return true
 895         else
 896                 local ifn
 897                 for ifn in utl.imatch(self:get("ifname")) do
 898                         ifn = ifn:match("[^:]+")
 899                         if ifn == ifname then
 900                                 return true
 901                         end
 902                 end
 903
 904                 local wif = _wifi_lookup(ifname)
 905                 if wif then
 906                         local n
 907                         for n in utl.imatch(_uci_real:get("wireless", wif, "network")) do
 908                                 if n == self.sid then
 909                                         return true
 910                                 end
 911                         end
 912                 end
 913         end
 914
 915         return false
 916 end
 917
 918 function protocol.adminlink(self)
 919         return dsp.build_url("admin", "network", "network", self.sid)
 920 end
 921
 922
 923 interface = utl.class()
 924
 925 function interface.__init__(self, ifname, network)
 926         local wif = _wifi_lookup(ifname)
 927         if wif then
 928                 self.wif    = wifinet(wif)
 929                 self.ifname = _uci_state:get("wireless", wif, "ifname")
 930         end
 931
 932         self.ifname  = self.ifname or ifname
 933         self.dev     = _interfaces[self.ifname]
 934         self.network = network
 935 end
 936
 937 function interface._ubus(self, field)
 938         if not _ubusdevcache[self.ifname] then
 939                 _ubusdevcache[self.ifname] = _ubus:call("network.device", "status",
 940                                                         { name = self.ifname })
 941         end
 942         if _ubusdevcache[self.ifname] and field then
 943                 return _ubusdevcache[self.ifname][field]
 944         end
 945         return _ubusdevcache[self.ifname]
 946 end
 947
 948 function interface.name(self)
 949         return self.wif and self.wif:ifname() or self.ifname
 950 end
 951
 952 function interface.mac(self)
 953         return (self:_ubus("macaddr") or "00:00:00:00:00:00"):upper()
 954 end
 955
 956 function interface.ipaddrs(self)
 957         return self.dev and self.dev.ipaddrs or { }
 958 end
 959
 960 function interface.ip6addrs(self)
 961         return self.dev and self.dev.ip6addrs or { }
 962 end
 963
 964 function interface.type(self)
 965         if self.wif or _wifi_iface(self.ifname) then
 966                 return "wifi"
 967         elseif _bridge[self.ifname] then
 968                 return "bridge"
 969         elseif _tunnel[self.ifname] then
 970                 return "tunnel"
 971         elseif self.ifname:match("%.") then
 972                 return "vlan"
 973         elseif _switch[self.ifname] then
 974                 return "switch"
 975         else
 976                 return "ethernet"
 977         end
 978 end
 979
 980 function interface.shortname(self)
 981         if self.wif then
 982                 return "%s %q" %{
 983                         self.wif:active_mode(),
 984                         self.wif:active_ssid() or self.wif:active_bssid()
 985                 }
 986         else
 987                 return self.ifname
 988         end
 989 end
 990
 991 function interface.get_i18n(self)
 992         if self.wif then
 993                 return "%s: %s %q" %{
 994                         i18n.translate("Wireless Network"),
 995                         self.wif:active_mode(),
 996                         self.wif:active_ssid() or self.wif:active_bssid()
 997                 }
 998         else
 999                 return "%s: %q" %{ self:get_type_i18n(), self:name() }
1000         end
1001 end
1002
1003 function interface.get_type_i18n(self)
1004         local x = self:type()
1005         if x == "wifi" then
1006                 return i18n.translate("Wireless Adapter")
1007         elseif x == "bridge" then
1008                 return i18n.translate("Bridge")
1009         elseif x == "switch" then
1010                 return i18n.translate("Ethernet Switch")
1011         elseif x == "vlan" then
1012                 return i18n.translate("VLAN Interface")
1013         elseif x == "tunnel" then
1014                 return i18n.translate("Tunnel Interface")
1015         else
1016                 return i18n.translate("Ethernet Adapter")
1017         end
1018 end
1019
1020 function interface.adminlink(self)
1021         if self.wif then
1022                 return self.wif:adminlink()
1023         end
1024 end
1025
1026 function interface.ports(self)
1027         local members = self:_ubus("bridge-members")
1028         if members then
1029                 local _, iface
1030                 local ifaces = { }
1031                 for _, iface in ipairs(members) do
1032                         ifaces[#ifaces+1] = interface(iface)
1033                 end
1034         end
1035 end
1036
1037 function interface.bridge_id(self)
1038         if self.br then
1039                 return self.br.id
1040         else
1041                 return nil
1042         end
1043 end
1044
1045 function interface.bridge_stp(self)
1046         if self.br then
1047                 return self.br.stp
1048         else
1049                 return false
1050         end
1051 end
1052
1053 function interface.is_up(self)
1054         if self.wif then
1055                 return self.wif:is_up()
1056         else
1057                 return self:_ubus("up") or false
1058         end
1059 end
1060
1061 function interface.is_bridge(self)
1062         return (self:type() == "bridge")
1063 end
1064
1065 function interface.is_bridgeport(self)
1066         return self.dev and self.dev.bridge and true or false
1067 end
1068
1069 local function uint(x)
1070         if x then
1071                 return (x < 0) and ((2^32) + x) or x
1072         end
1073         return 0
1074 end
1075
1076 function interface.tx_bytes(self)
1077         local stat = self:_ubus("statistics")
1078         return stat and uint(stat.tx_bytes) or 0
1079 end
1080
1081 function interface.rx_bytes(self)
1082         local stat = self:_ubus("statistics")
1083         return stat and uint(stat.rx_bytes) or 0
1084 end
1085
1086 function interface.tx_packets(self)
1087         local stat = self:_ubus("statistics")
1088         return stat and uint(stat.tx_packets) or 0
1089 end
1090
1091 function interface.rx_packets(self)
1092         local stat = self:_ubus("statistics")
1093         return stat and uint(stat.rx_packets) or 0
1094 end
1095
1096 function interface.get_network(self)
1097         return self:get_networks()[1]
1098 end
1099
1100 function interface.get_networks(self)
1101         if not self.networks then
1102                 local nets = { }
1103                 local _, net
1104                 for _, net in ipairs(_M:get_networks()) do
1105                         if net:contains_interface(self.ifname) or
1106                            net:ifname() == self.ifname
1107                         then
1108                                 nets[#nets+1] = net
1109                         end
1110                 end
1111                 table.sort(nets, function(a, b) return a.sid < b.sid end)
1112                 self.networks = nets
1113                 return nets
1114         else
1115                 return self.networks
1116         end
1117 end
1118
1119 function interface.get_wifinet(self)
1120         return self.wif
1121 end
1122
1123
1124 wifidev = utl.class()
1125
1126 function wifidev.__init__(self, dev)
1127         self.sid    = dev
1128         self.iwinfo = dev and sys.wifi.getiwinfo(dev) or { }
1129 end
1130
1131 function wifidev.get(self, opt)
1132         return _get("wireless", self.sid, opt)
1133 end
1134
1135 function wifidev.set(self, opt, val)
1136         return _set("wireless", self.sid, opt, val)
1137 end
1138
1139 function wifidev.name(self)
1140         return self.sid
1141 end
1142
1143 function wifidev.hwmodes(self)
1144         local l = self.iwinfo.hwmodelist
1145         if l and next(l) then
1146                 return l
1147         else
1148                 return { b = true, g = true }
1149         end
1150 end
1151
1152 function wifidev.get_i18n(self)
1153         local t = "Generic"
1154         if self.iwinfo.type == "wl" then
1155                 t = "Broadcom"
1156         elseif self.iwinfo.type == "madwifi" then
1157                 t = "Atheros"
1158         end
1159
1160         local m = ""
1161         local l = self:hwmodes()
1162         if l.a then m = m .. "a" end
1163         if l.b then m = m .. "b" end
1164         if l.g then m = m .. "g" end
1165         if l.n then m = m .. "n" end
1166
1167         return "%s 802.11%s Wireless Controller (%s)" %{ t, m, self:name() }
1168 end
1169
1170 function wifidev.is_up(self)
1171         local up = false
1172
1173         _uci_state:foreach("wireless", "wifi-iface",
1174                 function(s)
1175                         if s.device == self.sid then
1176                                 if s.up == "1" then
1177                                         up = true
1178                                         return false
1179                                 end
1180                         end
1181                 end)
1182
1183         return up
1184 end
1185
1186 function wifidev.get_wifinet(self, net)
1187         if _uci_real:get("wireless", net) == "wifi-iface" then
1188                 return wifinet(net)
1189         else
1190                 local wnet = _wifi_lookup(net)
1191                 if wnet then
1192                         return wifinet(wnet)
1193                 end
1194         end
1195 end
1196
1197 function wifidev.get_wifinets(self)
1198         local nets = { }
1199
1200         _uci_real:foreach("wireless", "wifi-iface",
1201                 function(s)
1202                         if s.device == self.sid then
1203                                 nets[#nets+1] = wifinet(s['.name'])
1204                         end
1205                 end)
1206
1207         return nets
1208 end
1209
1210 function wifidev.add_wifinet(self, options)
1211         options = options or { }
1212         options.device = self.sid
1213
1214         local wnet = _uci_real:section("wireless", "wifi-iface", nil, options)
1215         if wnet then
1216                 return wifinet(wnet, options)
1217         end
1218 end
1219
1220 function wifidev.del_wifinet(self, net)
1221         if utl.instanceof(net, wifinet) then
1222                 net = net.sid
1223         elseif _uci_real:get("wireless", net) ~= "wifi-iface" then
1224                 net = _wifi_lookup(net)
1225         end
1226
1227         if net and _uci_real:get("wireless", net, "device") == self.sid then
1228                 _uci_real:delete("wireless", net)
1229                 return true
1230         end
1231
1232         return false
1233 end
1234
1235
1236 wifinet = utl.class()
1237
1238 function wifinet.__init__(self, net, data)
1239         self.sid = net
1240
1241         local num = { }
1242         local netid
1243         _uci_real:foreach("wireless", "wifi-iface",
1244                 function(s)
1245                         if s.device then
1246                                 num[s.device] = num[s.device] and num[s.device] + 1 or 1
1247                                 if s['.name'] == self.sid then
1248                                         netid = "%s.network%d" %{ s.device, num[s.device] }
1249                                         return false
1250                                 end
1251                         end
1252                 end)
1253
1254         local dev = _uci_state:get("wireless", self.sid, "ifname") or netid
1255
1256         self.netid  = netid
1257         self.wdev   = dev
1258         self.iwinfo = dev and sys.wifi.getiwinfo(dev) or { }
1259         self.iwdata = data or _uci_state:get_all("wireless", self.sid) or
1260                 _uci_real:get_all("wireless", self.sid) or { }
1261 end
1262
1263 function wifinet.get(self, opt)
1264         return _get("wireless", self.sid, opt)
1265 end
1266
1267 function wifinet.set(self, opt, val)
1268         return _set("wireless", self.sid, opt, val)
1269 end
1270
1271 function wifinet.mode(self)
1272         return _uci_state:get("wireless", self.sid, "mode") or "ap"
1273 end
1274
1275 function wifinet.ssid(self)
1276         return _uci_state:get("wireless", self.sid, "ssid")
1277 end
1278
1279 function wifinet.bssid(self)
1280         return _uci_state:get("wireless", self.sid, "bssid")
1281 end
1282
1283 function wifinet.network(self)
1284         return _uci_state:get("wifinet", self.sid, "network")
1285 end
1286
1287 function wifinet.id(self)
1288         return self.netid
1289 end
1290
1291 function wifinet.name(self)
1292         return self.sid
1293 end
1294
1295 function wifinet.ifname(self)
1296         local ifname = self.iwinfo.ifname
1297         if not ifname or ifname:match("^wifi%d") or ifname:match("^radio%d") then
1298                 ifname = self.wdev
1299         end
1300         return ifname
1301 end
1302
1303 function wifinet.get_device(self)
1304         if self.iwdata.device then
1305                 return wifidev(self.iwdata.device)
1306         end
1307 end
1308
1309 function wifinet.is_up(self)
1310         return (self.iwdata.up == "1")
1311 end
1312
1313 function wifinet.active_mode(self)
1314         local m = _stror(self.iwinfo.mode, self.iwdata.mode) or "ap"
1315
1316         if     m == "ap"      then m = "Master"
1317         elseif m == "sta"     then m = "Client"
1318         elseif m == "adhoc"   then m = "Ad-Hoc"
1319         elseif m == "mesh"    then m = "Mesh"
1320         elseif m == "monitor" then m = "Monitor"
1321         end
1322
1323         return m
1324 end
1325
1326 function wifinet.active_mode_i18n(self)
1327         return i18n.translate(self:active_mode())
1328 end
1329
1330 function wifinet.active_ssid(self)
1331         return _stror(self.iwinfo.ssid, self.iwdata.ssid)
1332 end
1333
1334 function wifinet.active_bssid(self)
1335         return _stror(self.iwinfo.bssid, self.iwdata.bssid) or "00:00:00:00:00:00"
1336 end
1337
1338 function wifinet.active_encryption(self)
1339         local enc = self.iwinfo and self.iwinfo.encryption
1340         return enc and enc.description or "-"
1341 end
1342
1343 function wifinet.assoclist(self)
1344         return self.iwinfo.assoclist or { }
1345 end
1346
1347 function wifinet.frequency(self)
1348         local freq = self.iwinfo.frequency
1349         if freq and freq > 0 then
1350                 return "%.03f" % (freq / 1000)
1351         end
1352 end
1353
1354 function wifinet.bitrate(self)
1355         local rate = self.iwinfo.bitrate
1356         if rate and rate > 0 then
1357                 return (rate / 1000)
1358         end
1359 end
1360
1361 function wifinet.channel(self)
1362         return self.iwinfo.channel or
1363                 tonumber(_uci_state:get("wireless", self.iwdata.device, "channel"))
1364 end
1365
1366 function wifinet.signal(self)
1367         return self.iwinfo.signal or 0
1368 end
1369
1370 function wifinet.noise(self)
1371         return self.iwinfo.noise or 0
1372 end
1373
1374 function wifinet.country(self)
1375         return self.iwinfo.country or "00"
1376 end
1377
1378 function wifinet.txpower(self)
1379         local pwr = (self.iwinfo.txpower or 0)
1380         return pwr + self:txpower_offset()
1381 end
1382
1383 function wifinet.txpower_offset(self)
1384         return self.iwinfo.txpower_offset or 0
1385 end
1386
1387 function wifinet.signal_level(self, s, n)
1388         if self:active_bssid() ~= "00:00:00:00:00:00" then
1389                 local signal = s or self:signal()
1390                 local noise  = n or self:noise()
1391
1392                 if signal < 0 and noise < 0 then
1393                         local snr = -1 * (noise - signal)
1394                         return math.floor(snr / 5)
1395                 else
1396                         return 0
1397                 end
1398         else
1399                 return -1
1400         end
1401 end
1402
1403 function wifinet.signal_percent(self)
1404         local qc = self.iwinfo.quality or 0
1405         local qm = self.iwinfo.quality_max or 0
1406
1407         if qc > 0 and qm > 0 then
1408                 return math.floor((100 / qm) * qc)
1409         else
1410                 return 0
1411         end
1412 end
1413
1414 function wifinet.shortname(self)
1415         return "%s %q" %{
1416                 i18n.translate(self:active_mode()),
1417                 self:active_ssid() or self:active_bssid()
1418         }
1419 end
1420
1421 function wifinet.get_i18n(self)
1422         return "%s: %s %q (%s)" %{
1423                 i18n.translate("Wireless Network"),
1424                 i18n.translate(self:active_mode()),
1425                 self:active_ssid() or self:active_bssid(),
1426                 self:ifname()
1427         }
1428 end
1429
1430 function wifinet.adminlink(self)
1431         return dsp.build_url("admin", "network", "wireless", self.netid)
1432 end
1433
1434 function wifinet.get_network(self)
1435         return self:get_networks()[1]
1436 end
1437
1438 function wifinet.get_networks(self)
1439         local nets = { }
1440         local net
1441         for net in utl.imatch(tostring(self.iwdata.network)) do
1442                 if _uci_real:get("network", net) == "interface" then
1443                         nets[#nets+1] = network(net)
1444                 end
1445         end
1446         table.sort(nets, function(a, b) return a.sid < b.sid end)
1447         return nets
1448 end
1449
1450 function wifinet.get_interface(self)
1451         return interface(self:ifname())
1452 end
1453
1454
1455 -- setup base protocols
1456 _M:register_protocol("static")
1457 _M:register_protocol("dhcp")
1458 _M:register_protocol("none")
1459
1460 -- load protocol extensions
1461 local exts = nfs.dir(utl.libpath() .. "/model/network")
1462 if exts then
1463         local ext
1464         for ext in exts do
1465                 if ext:match("%.lua$") then
1466                         require("luci.model.network." .. ext:gsub("%.lua$", ""))
1467                 end
1468         end
1469 end