modules/admin-full/luasrc/model/cbi/admin_network/ifaces.lua

   1 --[[
   2 LuCI - Lua Configuration Interface
   3
   4 Copyright 2008 Steven Barth <steven@midlink.org>
   5 Copyright 2008-2011 Jo-Philipp Wich <xm@subsignal.org>
   6
   7 Licensed under the Apache License, Version 2.0 (the "License");
   8 you may not use this file except in compliance with the License.
   9 You may obtain a copy of the License at
  10
  11         http://www.apache.org/licenses/LICENSE-2.0
  12
  13 $Id$
  14 ]]--
  15
  16 local fs = require "nixio.fs"
  17 local ut = require "luci.util"
  18 local nw = require "luci.model.network"
  19 local fw = require "luci.model.firewall"
  20
  21 arg[1] = arg[1] or ""
  22
  23 local has_dnsmasq  = fs.access("/etc/config/dhcp")
  24 local has_firewall = fs.access("/etc/config/firewall")
  25
  26 m = Map("network", translate("Interfaces") .. " - " .. arg[1]:upper(), translate("On this page you can configure the network interfaces. You can bridge several interfaces by ticking the \"bridge interfaces\" field and enter the names of several network interfaces separated by spaces. You can also use <abbr title=\"Virtual Local Area Network\">VLAN</abbr> notation <samp>INTERFACE.VLANNR</samp> (<abbr title=\"for example\">e.g.</abbr>: <samp>eth0.1</samp>)."))
  27 m:chain("wireless")
  28
  29 if has_firewall then
  30         m:chain("firewall")
  31 end
  32
  33 nw.init(m.uci)
  34 fw.init(m.uci)
  35
  36
  37 local net = nw:get_network(arg[1])
  38
  39 local function backup_ifnames(is_bridge)
  40         if not net:is_floating() and not m:get(net:name(), "_orig_ifname") then
  41                 local ifcs = net:get_interfaces() or { net:get_interface() }
  42                 if ifcs then
  43                         local _, ifn
  44                         local ifns = { }
  45                         for _, ifn in ipairs(ifcs) do
  46                                 ifns[#ifns+1] = ifn:name()
  47                         end
  48                         if #ifns > 0 then
  49                                 m:set(net:name(), "_orig_ifname", table.concat(ifns, " "))
  50                                 m:set(net:name(), "_orig_bridge", tostring(net:is_bridge()))
  51                         end
  52                 end
  53         end
  54 end
  55
  56
  57 -- redirect to overview page if network does not exist anymore (e.g. after a revert)
  58 if not net then
  59         luci.http.redirect(luci.dispatcher.build_url("admin/network/network"))
  60         return
  61 end
  62
  63 -- protocol switch was requested, rebuild interface config and reload page
  64 if m:formvalue("cbid.network.%s._switch" % net:name()) then
  65         -- get new protocol
  66         local ptype = m:formvalue("cbid.network.%s.proto" % net:name()) or "-"
  67         local proto = nw:get_protocol(ptype, net:name())
  68         if proto then
  69                 -- backup default
  70                 backup_ifnames()
  71
  72                 -- if current proto is not floating and target proto is not floating,
  73                 -- then attempt to retain the ifnames
  74                 --error(net:proto() .. " > " .. proto:proto())
  75                 if not net:is_floating() and not proto:is_floating() then
  76                         -- if old proto is a bridge and new proto not, then clip the
  77                         -- interface list to the first ifname only
  78                         if net:is_bridge() and proto:is_virtual() then
  79                                 local _, ifn
  80                                 local first = true
  81                                 for _, ifn in ipairs(net:get_interfaces() or { net:get_interface() }) do
  82                                         if first then
  83                                                 first = false
  84                                         else
  85                                                 net:del_interface(ifn)
  86                                         end
  87                                 end
  88                                 m:del(net:name(), "type")
  89                         end
  90
  91                 -- if the current proto is floating, the target proto not floating,
  92                 -- then attempt to restore ifnames from backup
  93                 elseif net:is_floating() and not proto:is_floating() then
  94                         -- if we have backup data, then re-add all orphaned interfaces
  95                         -- from it and restore the bridge choice
  96                         local br = (m:get(net:name(), "_orig_bridge") == "true")
  97                         local ifn
  98                         local ifns = { }
  99                         for ifn in ut.imatch(m:get(net:name(), "_orig_ifname")) do
 100                                 ifn = nw:get_interface(ifn)
 101                                 if ifn and not ifn:get_network() then
 102                                         proto:add_interface(ifn)
 103                                         if not br then
 104                                                 break
 105                                         end
 106                                 end
 107                         end
 108                         if br then
 109                                 m:set(net:name(), "type", "bridge")
 110                         end
 111
 112                 -- in all other cases clear the ifnames
 113                 else
 114                         local _, ifc
 115                         for _, ifc in ipairs(net:get_interfaces() or { net:get_interface() }) do
 116                                 net:del_interface(ifc)
 117                         end
 118                         m:del(net:name(), "type")
 119                 end
 120
 121                 -- clear options
 122                 local k, v
 123                 for k, v in pairs(m:get(net:name())) do
 124                         if k:sub(1,1) ~= "." and
 125                            k ~= "type" and
 126                            k ~= "ifname" and
 127                            k ~= "_orig_ifname" and
 128                            k ~= "_orig_bridge"
 129                         then
 130                                 m:del(net:name(), k)
 131                         end
 132                 end
 133
 134                 -- set proto
 135                 m:set(net:name(), "proto", proto:proto())
 136                 m.uci:save("network")
 137                 m.uci:save("wireless")
 138
 139                 -- reload page
 140                 luci.http.redirect(luci.dispatcher.build_url("admin/network/network", arg[1]))
 141                 return
 142         end
 143 end
 144
 145 -- dhcp setup was requested, create section and reload page
 146 if m:formvalue("cbid.dhcp._enable._enable") then
 147         m.uci:section("dhcp", "dhcp", nil, {
 148                 interface = arg[1],
 149                 start     = "100",
 150                 limit     = "150",
 151                 leasetime = "12h"
 152         })
 153
 154         m.uci:save("dhcp")
 155         luci.http.redirect(luci.dispatcher.build_url("admin/network/network", arg[1]))
 156         return
 157 end
 158
 159 local ifc = net:get_interface()
 160
 161 s = m:section(NamedSection, arg[1], "interface", translate("Common Configuration"))
 162 s.addremove = false
 163
 164 s:tab("general",  translate("General Setup"))
 165 s:tab("advanced", translate("Advanced Settings"))
 166 s:tab("physical", translate("Physical Settings"))
 167
 168 if has_firewall then
 169         s:tab("firewall", translate("Firewall Settings"))
 170 end
 171
 172
 173 st = s:taboption("general", DummyValue, "__status", translate("Status"))
 174
 175 local function set_status()
 176         -- if current network is empty, print a warning
 177         if not net:is_floating() and net:is_empty() then
 178                 st.template = "cbi/dvalue"
 179                 st.network  = nil
 180                 st.value    = translate("There is no device assigned yet, please attach a network device in the \"Physical Settings\" tab")
 181         else
 182                 st.template = "admin_network/iface_status"
 183                 st.network  = arg[1]
 184                 st.value    = nil
 185         end
 186 end
 187
 188 m.on_init = set_status
 189 m.on_after_save = set_status
 190
 191
 192 p = s:taboption("general", ListValue, "proto", translate("Protocol"))
 193 p.default = net:proto()
 194
 195
 196 if not net:is_installed() then
 197         p_install = s:taboption("general", Button, "_install")
 198         p_install.title      = translate("Protocol support is not installed")
 199         p_install.inputtitle = translate("Install package %q" % net:opkg_package())
 200         p_install.inputstyle = "apply"
 201         p_install:depends("proto", net:proto())
 202
 203         function p_install.write()
 204                 return luci.http.redirect(
 205                         luci.dispatcher.build_url("admin/system/packages") ..
 206                         "?submit=1&install=%s" % net:opkg_package()
 207                 )
 208         end
 209 end
 210
 211
 212 p_switch = s:taboption("general", Button, "_switch")
 213 p_switch.title      = translate("Really switch protocol?")
 214 p_switch.inputtitle = translate("Switch protocol")
 215 p_switch.inputstyle = "apply"
 216
 217 local _, pr
 218 for _, pr in ipairs(nw:get_protocols()) do
 219         p:value(pr:proto(), pr:get_i18n())
 220         if pr:proto() ~= net:proto() then
 221                 p_switch:depends("proto", pr:proto())
 222         end
 223 end
 224
 225
 226 auto = s:taboption("advanced", Flag, "auto", translate("Bring up on boot"))
 227 auto.default = (net:proto() == "none") and auto.disabled or auto.enabled
 228
 229
 230 if not net:is_virtual() then
 231         br = s:taboption("physical", Flag, "type", translate("Bridge interfaces"), translate("creates a bridge over specified interface(s)"))
 232         br.enabled = "bridge"
 233         br.rmempty = true
 234         br:depends("proto", "static")
 235         br:depends("proto", "dhcp")
 236         br:depends("proto", "none")
 237
 238         stp = s:taboption("physical", Flag, "stp", translate("Enable <abbr title=\"Spanning Tree Protocol\">STP</abbr>"),
 239                 translate("Enables the Spanning Tree Protocol on this bridge"))
 240         stp:depends("type", "bridge")
 241         stp.rmempty = true
 242 end
 243
 244
 245 if not net:is_floating() then
 246         ifname_single = s:taboption("physical", Value, "ifname_single", translate("Interface"))
 247         ifname_single.template = "cbi/network_ifacelist"
 248         ifname_single.widget = "radio"
 249         ifname_single.nobridges = true
 250         ifname_single.rmempty = false
 251         ifname_single.network = arg[1]
 252         ifname_single:depends("type", "")
 253
 254         function ifname_single.cfgvalue(self, s)
 255                 -- let the template figure out the related ifaces through the network model
 256                 return nil
 257         end
 258
 259         function ifname_single.write(self, s, val)
 260                 local i
 261                 local new_ifs = { }
 262                 local old_ifs = { }
 263
 264                 for _, i in ipairs(net:get_interfaces() or { net:get_interface() }) do
 265                         old_ifs[#old_ifs+1] = i:name()
 266                 end
 267
 268                 for i in ut.imatch(val) do
 269                         new_ifs[#new_ifs+1] = i
 270
 271                         -- if this is not a bridge, only assign first interface
 272                         if self.option == "ifname_single" then
 273                                 break
 274                         end
 275                 end
 276
 277                 table.sort(old_ifs)
 278                 table.sort(new_ifs)
 279
 280                 for i = 1, math.max(#old_ifs, #new_ifs) do
 281                         if old_ifs[i] ~= new_ifs[i] then
 282                                 backup_ifnames()
 283                                 for i = 1, #old_ifs do
 284                                         net:del_interface(old_ifs[i])
 285                                 end
 286                                 for i = 1, #new_ifs do
 287                                         net:add_interface(new_ifs[i])
 288                                 end
 289                                 break
 290                         end
 291                 end
 292         end
 293 end
 294
 295
 296 if not net:is_virtual() then
 297         ifname_multi = s:taboption("physical", Value, "ifname_multi", translate("Interface"))
 298         ifname_multi.template = "cbi/network_ifacelist"
 299         ifname_multi.nobridges = true
 300         ifname_multi.rmempty = false
 301         ifname_multi.network = arg[1]
 302         ifname_multi.widget = "checkbox"
 303         ifname_multi:depends("type", "bridge")
 304         ifname_multi.cfgvalue = ifname_single.cfgvalue
 305         ifname_multi.write = ifname_single.write
 306 end
 307
 308
 309 if has_firewall then
 310         fwzone = s:taboption("firewall", Value, "_fwzone",
 311                 translate("Create / Assign firewall-zone"),
 312                 translate("Choose the firewall zone you want to assign to this interface. Select <em>unspecified</em> to remove the interface from the associated zone or fill out the <em>create</em> field to define a new zone and attach the interface to it."))
 313
 314         fwzone.template = "cbi/firewall_zonelist"
 315         fwzone.network = arg[1]
 316         fwzone.rmempty = false
 317
 318         function fwzone.cfgvalue(self, section)
 319                 self.iface = section
 320                 local z = fw:get_zone_by_network(section)
 321                 return z and z:name()
 322         end
 323
 324         function fwzone.write(self, section, value)
 325                 local zone = fw:get_zone(value)
 326
 327                 if not zone and value == '-' then
 328                         value = m:formvalue(self:cbid(section) .. ".newzone")
 329                         if value and #value > 0 then
 330                                 zone = fw:add_zone(value)
 331                         else
 332                                 fw:del_network(section)
 333                         end
 334                 end
 335
 336                 if zone then
 337                         fw:del_network(section)
 338                         zone:add_network(section)
 339                 end
 340         end
 341 end
 342
 343
 344 function p.write() end
 345 function p.remove() end
 346 function p.validate(self, value, section)
 347         if value == net:proto() then
 348                 if not net:is_floating() and net:is_empty() then
 349                         local ifn = ((br and (br:formvalue(section) == "bridge"))
 350                                 and ifname_multi:formvalue(section)
 351                              or ifname_single:formvalue(section))
 352
 353                         for ifn in ut.imatch(ifn) do
 354                                 return value
 355                         end
 356                         return nil, translate("The selected protocol needs a device assigned")
 357                 end
 358         end
 359         return value
 360 end
 361
 362
 363 local form, ferr = loadfile(
 364         ut.libpath() .. "/model/cbi/admin_network/proto_%s.lua" % net:proto()
 365 )
 366
 367 if not form then
 368         s:taboption("general", DummyValue, "_error",
 369                 translate("Missing protocol extension for proto %q" % net:proto())
 370         ).value = ferr
 371 else
 372         setfenv(form, getfenv(1))(m, s, net)
 373 end
 374
 375
 376 local _, field
 377 for _, field in ipairs(s.children) do
 378         if field ~= st and field ~= p and field ~= p_install and field ~= p_switch then
 379                 if next(field.deps) then
 380                         local _, dep
 381                         for _, dep in ipairs(field.deps) do
 382                                 dep.deps.proto = net:proto()
 383                         end
 384                 else
 385                         field:depends("proto", net:proto())
 386                 end
 387         end
 388 end
 389
 390
 391 --
 392 -- Display IP Aliases
 393 --
 394
 395 if not net:is_floating() then
 396         s2 = m:section(TypedSection, "alias", translate("IP-Aliases"))
 397         s2.addremove = true
 398
 399         s2:depends("interface", arg[1])
 400         s2.defaults.interface = arg[1]
 401
 402         s2:tab("general", translate("General Setup"))
 403         s2.defaults.proto = "static"
 404
 405         ip = s2:taboption("general", Value, "ipaddr", translate("<abbr title=\"Internet Protocol Version 4\">IPv4</abbr>-Address"))
 406         ip.optional = true
 407         ip.datatype = "ip4addr"
 408
 409         nm = s2:taboption("general", Value, "netmask", translate("<abbr title=\"Internet Protocol Version 4\">IPv4</abbr>-Netmask"))
 410         nm.optional = true
 411         nm.datatype = "ip4addr"
 412         nm:value("255.255.255.0")
 413         nm:value("255.255.0.0")
 414         nm:value("255.0.0.0")
 415
 416         gw = s2:taboption("general", Value, "gateway", translate("<abbr title=\"Internet Protocol Version 4\">IPv4</abbr>-Gateway"))
 417         gw.optional = true
 418         gw.datatype = "ip4addr"
 419
 420         if has_ipv6 then
 421                 s2:tab("ipv6", translate("IPv6 Setup"))
 422
 423                 ip6 = s2:taboption("ipv6", Value, "ip6addr", translate("<abbr title=\"Internet Protocol Version 6\">IPv6</abbr>-Address"), translate("<abbr title=\"Classless Inter-Domain Routing\">CIDR</abbr>-Notation: address/prefix"))
 424                 ip6.optional = true
 425                 ip6.datatype = "ip6addr"
 426
 427                 gw6 = s2:taboption("ipv6", Value, "ip6gw", translate("<abbr title=\"Internet Protocol Version 6\">IPv6</abbr>-Gateway"))
 428                 gw6.optional = true
 429                 gw6.datatype = "ip6addr"
 430         end
 431
 432         s2:tab("advanced", translate("Advanced Settings"))
 433
 434         bcast = s2:taboption("advanced", Value, "bcast", translate("<abbr title=\"Internet Protocol Version 4\">IPv4</abbr>-Broadcast"))
 435         bcast.optional = true
 436         bcast.datatype = "ip4addr"
 437
 438         dns = s2:taboption("advanced", Value, "dns", translate("<abbr title=\"Domain Name System\">DNS</abbr>-Server"))
 439         dns.optional = true
 440         dns.datatype = "ip4addr"
 441 end
 442
 443
 444 --
 445 -- Display DNS settings if dnsmasq is available
 446 --
 447
 448 if has_dnsmasq and net:proto() == "static" then
 449         m2 = Map("dhcp", "", "")
 450
 451         local has_section = false
 452
 453         m2.uci:foreach("dhcp", "dhcp", function(s)
 454                 if s.interface == arg[1] then
 455                         has_section = true
 456                         return false
 457                 end
 458         end)
 459
 460         if not has_section then
 461
 462                 s = m2:section(TypedSection, "dhcp", translate("DHCP Server"))
 463                 s.anonymous   = true
 464                 s.cfgsections = function() return { "_enable" } end
 465
 466                 x = s:option(Button, "_enable")
 467                 x.title      = translate("No DHCP Server configured for this interface")
 468                 x.inputtitle = translate("Setup DHCP Server")
 469                 x.inputstyle = "apply"
 470
 471         else
 472
 473                 s = m2:section(TypedSection, "dhcp", translate("DHCP Server"))
 474                 s.addremove = false
 475                 s.anonymous = true
 476                 s:tab("general",  translate("General Setup"))
 477                 s:tab("advanced", translate("Advanced Settings"))
 478
 479                 function s.filter(self, section)
 480                         return m2.uci:get("dhcp", section, "interface") == arg[1]
 481                 end
 482
 483                 local ignore = s:taboption("general", Flag, "ignore",
 484                         translate("Ignore interface"),
 485                         translate("Disable <abbr title=\"Dynamic Host Configuration Protocol\">DHCP</abbr> for " ..
 486                                 "this interface."))
 487
 488                 local start = s:taboption("general", Value, "start", translate("Start"),
 489                         translate("Lowest leased address as offset from the network address."))
 490                 start.optional = true
 491                 start.datatype = "or(uinteger,ip4addr)"
 492                 start.default = "100"
 493
 494                 local limit = s:taboption("general", Value, "limit", translate("Limit"),
 495                         translate("Maximum number of leased addresses."))
 496                 limit.optional = true
 497                 limit.datatype = "uinteger"
 498                 limit.default = "150"
 499
 500                 local ltime = s:taboption("general", Value, "leasetime", translate("Leasetime"),
 501                         translate("Expiry time of leased addresses, minimum is 2 Minutes (<code>2m</code>)."))
 502                 ltime.rmempty = true
 503                 ltime.default = "12h"
 504
 505                 local dd = s:taboption("advanced", Flag, "dynamicdhcp",
 506                         translate("Dynamic <abbr title=\"Dynamic Host Configuration Protocol\">DHCP</abbr>"),
 507                         translate("Dynamically allocate DHCP addresses for clients. If disabled, only " ..
 508                                 "clients having static leases will be served."))
 509                 dd.default = dd.enabled
 510
 511                 s:taboption("advanced", Flag, "force", translate("Force"),
 512                         translate("Force DHCP on this network even if another server is detected."))
 513
 514                 -- XXX: is this actually useful?
 515                 --s:taboption("advanced", Value, "name", translate("Name"),
 516                 --      translate("Define a name for this network."))
 517
 518                 mask = s:taboption("advanced", Value, "netmask",
 519                         translate("<abbr title=\"Internet Protocol Version 4\">IPv4</abbr>-Netmask"),
 520                         translate("Override the netmask sent to clients. Normally it is calculated " ..
 521                                 "from the subnet that is served."))
 522
 523                 mask.optional = true
 524                 mask.datatype = "ip4addr"
 525
 526                 s:taboption("advanced", DynamicList, "dhcp_option", translate("DHCP-Options"),
 527                         translate("Define additional DHCP options, for example \"<code>6,192.168.2.1," ..
 528                                 "192.168.2.2</code>\" which advertises different DNS servers to clients."))
 529
 530                 for i, n in ipairs(s.children) do
 531                         if n ~= ignore then
 532                                 n:depends("ignore", "")
 533                         end
 534                 end
 535
 536         end
 537 end
 538
 539
 540 return m, m2