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 pt = require "luci.tools.proto"
  19 local nw = require "luci.model.network"
  20 local fw = require "luci.model.firewall"
  21
  22 arg[1] = arg[1] or ""
  23
  24 local has_dnsmasq  = fs.access("/etc/config/dhcp")
  25 local has_firewall = fs.access("/etc/config/firewall")
  26
  27 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>)."))
  28 m:chain("wireless")
  29
  30 if has_firewall then
  31         m:chain("firewall")
  32 end
  33
  34 nw.init(m.uci)
  35 fw.init(m.uci)
  36
  37
  38 local net = nw:get_network(arg[1])
  39
  40 local function backup_ifnames(is_bridge)
  41         if not net:is_floating() and not m:get(net:name(), "_orig_ifname") then
  42                 local ifcs = net:get_interfaces() or { net:get_interface() }
  43                 if ifcs then
  44                         local _, ifn
  45                         local ifns = { }
  46                         for _, ifn in ipairs(ifcs) do
  47                                 ifns[#ifns+1] = ifn:name()
  48                         end
  49                         if #ifns > 0 then
  50                                 m:set(net:name(), "_orig_ifname", table.concat(ifns, " "))
  51                                 m:set(net:name(), "_orig_bridge", tostring(net:is_bridge()))
  52                         end
  53                 end
  54         end
  55 end
  56
  57
  58 -- redirect to overview page if network does not exist anymore (e.g. after a revert)
  59 if not net then
  60         luci.http.redirect(luci.dispatcher.build_url("admin/network/network"))
  61         return
  62 end
  63
  64 -- protocol switch was requested, rebuild interface config and reload page
  65 if m:formvalue("cbid.network.%s._switch" % net:name()) then
  66         -- get new protocol
  67         local ptype = m:formvalue("cbid.network.%s.proto" % net:name()) or "-"
  68         local proto = nw:get_protocol(ptype, net:name())
  69         if proto then
  70                 -- backup default
  71                 backup_ifnames()
  72
  73                 -- if current proto is not floating and target proto is not floating,
  74                 -- then attempt to retain the ifnames
  75                 --error(net:proto() .. " > " .. proto:proto())
  76                 if not net:is_floating() and not proto:is_floating() then
  77                         -- if old proto is a bridge and new proto not, then clip the
  78                         -- interface list to the first ifname only
  79                         if net:is_bridge() and proto:is_virtual() then
  80                                 local _, ifn
  81                                 local first = true
  82                                 for _, ifn in ipairs(net:get_interfaces() or { net:get_interface() }) do
  83                                         if first then
  84                                                 first = false
  85                                         else
  86                                                 net:del_interface(ifn)
  87                                         end
  88                                 end
  89                                 m:del(net:name(), "type")
  90                         end
  91
  92                 -- if the current proto is floating, the target proto not floating,
  93                 -- then attempt to restore ifnames from backup
  94                 elseif net:is_floating() and not proto:is_floating() then
  95                         -- if we have backup data, then re-add all orphaned interfaces
  96                         -- from it and restore the bridge choice
  97                         local br = (m:get(net:name(), "_orig_bridge") == "true")
  98                         local ifn
  99                         local ifns = { }
 100                         for ifn in ut.imatch(m:get(net:name(), "_orig_ifname")) do
 101                                 ifn = nw:get_interface(ifn)
 102                                 if ifn and not ifn:get_network() then
 103                                         proto:add_interface(ifn)
 104                                         if not br then
 105                                                 break
 106                                         end
 107                                 end
 108                         end
 109                         if br then
 110                                 m:set(net:name(), "type", "bridge")
 111                         end
 112
 113                 -- in all other cases clear the ifnames
 114                 else
 115                         local _, ifc
 116                         for _, ifc in ipairs(net:get_interfaces() or { net:get_interface() }) do
 117                                 net:del_interface(ifc)
 118                         end
 119                         m:del(net:name(), "type")
 120                 end
 121
 122                 -- clear options
 123                 local k, v
 124                 for k, v in pairs(m:get(net:name())) do
 125                         if k:sub(1,1) ~= "." and
 126                            k ~= "type" and
 127                            k ~= "ifname" and
 128                            k ~= "_orig_ifname" and
 129                            k ~= "_orig_bridge"
 130                         then
 131                                 m:del(net:name(), k)
 132                         end
 133                 end
 134
 135                 -- set proto
 136                 m:set(net:name(), "proto", proto:proto())
 137                 m.uci:save("network")
 138                 m.uci:save("wireless")
 139
 140                 -- reload page
 141                 luci.http.redirect(luci.dispatcher.build_url("admin/network/network", arg[1]))
 142                 return
 143         end
 144 end
 145
 146 -- dhcp setup was requested, create section and reload page
 147 if m:formvalue("cbid.dhcp._enable._enable") then
 148         m.uci:section("dhcp", "dhcp", nil, {
 149                 interface = arg[1],
 150                 start     = "100",
 151                 limit     = "150",
 152                 leasetime = "12h"
 153         })
 154
 155         m.uci:save("dhcp")
 156         luci.http.redirect(luci.dispatcher.build_url("admin/network/network", arg[1]))
 157         return
 158 end
 159
 160 local ifc = net:get_interface()
 161
 162 s = m:section(NamedSection, arg[1], "interface", translate("Common Configuration"))
 163 s.addremove = false
 164
 165 s:tab("general",  translate("General Setup"))
 166 s:tab("advanced", translate("Advanced Settings"))
 167 s:tab("physical", translate("Physical Settings"))
 168
 169 if has_firewall then
 170         s:tab("firewall", translate("Firewall Settings"))
 171 end
 172
 173
 174 st = s:taboption("general", DummyValue, "__status", translate("Status"))
 175
 176 local function set_status()
 177         -- if current network is empty, print a warning
 178         if not net:is_floating() and net:is_empty() then
 179                 st.template = "cbi/dvalue"
 180                 st.network  = nil
 181                 st.value    = translate("There is no device assigned yet, please attach a network device in the \"Physical Settings\" tab")
 182         else
 183                 st.template = "admin_network/iface_status"
 184                 st.network  = arg[1]
 185                 st.value    = nil
 186         end
 187 end
 188
 189 m.on_init = set_status
 190 m.on_after_save = set_status
 191
 192
 193 p = s:taboption("general", ListValue, "proto", translate("Protocol"))
 194 p.default = net:proto()
 195
 196
 197 if not net:is_installed() then
 198         p_install = s:taboption("general", Button, "_install")
 199         p_install.title      = translate("Protocol support is not installed")
 200         p_install.inputtitle = translate("Install package %q" % net:opkg_package())
 201         p_install.inputstyle = "apply"
 202         p_install:depends("proto", net:proto())
 203
 204         function p_install.write()
 205                 return luci.http.redirect(
 206                         luci.dispatcher.build_url("admin/system/packages") ..
 207                         "?submit=1&install=%s" % net:opkg_package()
 208                 )
 209         end
 210 end
 211
 212
 213 p_switch = s:taboption("general", Button, "_switch")
 214 p_switch.title      = translate("Really switch protocol?")
 215 p_switch.inputtitle = translate("Switch protocol")
 216 p_switch.inputstyle = "apply"
 217
 218 local _, pr
 219 for _, pr in ipairs(nw:get_protocols()) do
 220         p:value(pr:proto(), pr:get_i18n())
 221         if pr:proto() ~= net:proto() then
 222                 p_switch:depends("proto", pr:proto())
 223         end
 224 end
 225
 226
 227 auto = s:taboption("advanced", Flag, "auto", translate("Bring up on boot"))
 228 auto.default = (net:proto() == "none") and auto.disabled or auto.enabled
 229
 230 delegate = s:taboption("advanced", Flag, "delegate", translate("Use builtin IPv6-management"))
 231 delegate.default = delegate.enabled
 232
 233
 234 if not net:is_virtual() then
 235         br = s:taboption("physical", Flag, "type", translate("Bridge interfaces"), translate("creates a bridge over specified interface(s)"))
 236         br.enabled = "bridge"
 237         br.rmempty = true
 238         br:depends("proto", "static")
 239         br:depends("proto", "dhcp")
 240         br:depends("proto", "none")
 241
 242         stp = s:taboption("physical", Flag, "stp", translate("Enable <abbr title=\"Spanning Tree Protocol\">STP</abbr>"),
 243                 translate("Enables the Spanning Tree Protocol on this bridge"))
 244         stp:depends("type", "bridge")
 245         stp.rmempty = true
 246 end
 247
 248
 249 if not net:is_floating() then
 250         ifname_single = s:taboption("physical", Value, "ifname_single", translate("Interface"))
 251         ifname_single.template = "cbi/network_ifacelist"
 252         ifname_single.widget = "radio"
 253         ifname_single.nobridges = true
 254         ifname_single.rmempty = false
 255         ifname_single.network = arg[1]
 256         ifname_single:depends("type", "")
 257
 258         function ifname_single.cfgvalue(self, s)
 259                 -- let the template figure out the related ifaces through the network model
 260                 return nil
 261         end
 262
 263         function ifname_single.write(self, s, val)
 264                 local i
 265                 local new_ifs = { }
 266                 local old_ifs = { }
 267
 268                 for _, i in ipairs(net:get_interfaces() or { net:get_interface() }) do
 269                         old_ifs[#old_ifs+1] = i:name()
 270                 end
 271
 272                 for i in ut.imatch(val) do
 273                         new_ifs[#new_ifs+1] = i
 274
 275                         -- if this is not a bridge, only assign first interface
 276                         if self.option == "ifname_single" then
 277                                 break
 278                         end
 279                 end
 280
 281                 table.sort(old_ifs)
 282                 table.sort(new_ifs)
 283
 284                 for i = 1, math.max(#old_ifs, #new_ifs) do
 285                         if old_ifs[i] ~= new_ifs[i] then
 286                                 backup_ifnames()
 287                                 for i = 1, #old_ifs do
 288                                         net:del_interface(old_ifs[i])
 289                                 end
 290                                 for i = 1, #new_ifs do
 291                                         net:add_interface(new_ifs[i])
 292                                 end
 293                                 break
 294                         end
 295                 end
 296         end
 297 end
 298
 299
 300 if not net:is_virtual() then
 301         ifname_multi = s:taboption("physical", Value, "ifname_multi", translate("Interface"))
 302         ifname_multi.template = "cbi/network_ifacelist"
 303         ifname_multi.nobridges = true
 304         ifname_multi.rmempty = false
 305         ifname_multi.network = arg[1]
 306         ifname_multi.widget = "checkbox"
 307         ifname_multi:depends("type", "bridge")
 308         ifname_multi.cfgvalue = ifname_single.cfgvalue
 309         ifname_multi.write = ifname_single.write
 310 end
 311
 312
 313 if has_firewall then
 314         fwzone = s:taboption("firewall", Value, "_fwzone",
 315                 translate("Create / Assign firewall-zone"),
 316                 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."))
 317
 318         fwzone.template = "cbi/firewall_zonelist"
 319         fwzone.network = arg[1]
 320         fwzone.rmempty = false
 321
 322         function fwzone.cfgvalue(self, section)
 323                 self.iface = section
 324                 local z = fw:get_zone_by_network(section)
 325                 return z and z:name()
 326         end
 327
 328         function fwzone.write(self, section, value)
 329                 local zone = fw:get_zone(value)
 330
 331                 if not zone and value == '-' then
 332                         value = m:formvalue(self:cbid(section) .. ".newzone")
 333                         if value and #value > 0 then
 334                                 zone = fw:add_zone(value)
 335                         else
 336                                 fw:del_network(section)
 337                         end
 338                 end
 339
 340                 if zone then
 341                         fw:del_network(section)
 342                         zone:add_network(section)
 343                 end
 344         end
 345 end
 346
 347
 348 function p.write() end
 349 function p.remove() end
 350 function p.validate(self, value, section)
 351         if value == net:proto() then
 352                 if not net:is_floating() and net:is_empty() then
 353                         local ifn = ((br and (br:formvalue(section) == "bridge"))
 354                                 and ifname_multi:formvalue(section)
 355                              or ifname_single:formvalue(section))
 356
 357                         for ifn in ut.imatch(ifn) do
 358                                 return value
 359                         end
 360                         return nil, translate("The selected protocol needs a device assigned")
 361                 end
 362         end
 363         return value
 364 end
 365
 366
 367 local form, ferr = loadfile(
 368         ut.libpath() .. "/model/cbi/admin_network/proto_%s.lua" % net:proto()
 369 )
 370
 371 if not form then
 372         s:taboption("general", DummyValue, "_error",
 373                 translate("Missing protocol extension for proto %q" % net:proto())
 374         ).value = ferr
 375 else
 376         setfenv(form, getfenv(1))(m, s, net)
 377 end
 378
 379
 380 local _, field
 381 for _, field in ipairs(s.children) do
 382         if field ~= st and field ~= p and field ~= p_install and field ~= p_switch then
 383                 if next(field.deps) then
 384                         local _, dep
 385                         for _, dep in ipairs(field.deps) do
 386                                 dep.deps.proto = net:proto()
 387                         end
 388                 else
 389                         field:depends("proto", net:proto())
 390                 end
 391         end
 392 end
 393
 394
 395 --
 396 -- Display DNS settings if dnsmasq is available
 397 --
 398
 399 if has_dnsmasq and net:proto() == "static" then
 400         m2 = Map("dhcp", "", "")
 401
 402         local has_section = false
 403
 404         m2.uci:foreach("dhcp", "dhcp", function(s)
 405                 if s.interface == arg[1] then
 406                         has_section = true
 407                         return false
 408                 end
 409         end)
 410
 411         if not has_section and has_dnsmasq then
 412
 413                 s = m2:section(TypedSection, "dhcp", translate("DHCP Server"))
 414                 s.anonymous   = true
 415                 s.cfgsections = function() return { "_enable" } end
 416
 417                 x = s:option(Button, "_enable")
 418                 x.title      = translate("No DHCP Server configured for this interface")
 419                 x.inputtitle = translate("Setup DHCP Server")
 420                 x.inputstyle = "apply"
 421
 422         elseif has_section then
 423
 424                 s = m2:section(TypedSection, "dhcp", translate("DHCP Server"))
 425                 s.addremove = false
 426                 s.anonymous = true
 427                 s:tab("general",  translate("General Setup"))
 428                 s:tab("advanced", translate("Advanced Settings"))
 429                 s:tab("ipv6", translate("IPv6 Settings"))
 430
 431                 function s.filter(self, section)
 432                         return m2.uci:get("dhcp", section, "interface") == arg[1]
 433                 end
 434
 435                 local ignore = s:taboption("general", Flag, "ignore",
 436                         translate("Ignore interface"),
 437                         translate("Disable <abbr title=\"Dynamic Host Configuration Protocol\">DHCP</abbr> for " ..
 438                                 "this interface."))
 439
 440                 local start = s:taboption("general", Value, "start", translate("Start"),
 441                         translate("Lowest leased address as offset from the network address."))
 442                 start.optional = true
 443                 start.datatype = "or(uinteger,ip4addr)"
 444                 start.default = "100"
 445
 446                 local limit = s:taboption("general", Value, "limit", translate("Limit"),
 447                         translate("Maximum number of leased addresses."))
 448                 limit.optional = true
 449                 limit.datatype = "uinteger"
 450                 limit.default = "150"
 451
 452                 local ltime = s:taboption("general", Value, "leasetime", translate("Leasetime"),
 453                         translate("Expiry time of leased addresses, minimum is 2 Minutes (<code>2m</code>)."))
 454                 ltime.rmempty = true
 455                 ltime.default = "12h"
 456
 457                 local dd = s:taboption("advanced", Flag, "dynamicdhcp",
 458                         translate("Dynamic <abbr title=\"Dynamic Host Configuration Protocol\">DHCP</abbr>"),
 459                         translate("Dynamically allocate DHCP addresses for clients. If disabled, only " ..
 460                                 "clients having static leases will be served."))
 461                 dd.default = dd.enabled
 462
 463                 s:taboption("advanced", Flag, "force", translate("Force"),
 464                         translate("Force DHCP on this network even if another server is detected."))
 465
 466                 -- XXX: is this actually useful?
 467                 --s:taboption("advanced", Value, "name", translate("Name"),
 468                 --      translate("Define a name for this network."))
 469
 470                 mask = s:taboption("advanced", Value, "netmask",
 471                         translate("<abbr title=\"Internet Protocol Version 4\">IPv4</abbr>-Netmask"),
 472                         translate("Override the netmask sent to clients. Normally it is calculated " ..
 473                                 "from the subnet that is served."))
 474
 475                 mask.optional = true
 476                 mask.datatype = "ip4addr"
 477
 478                 s:taboption("advanced", DynamicList, "dhcp_option", translate("DHCP-Options"),
 479                         translate("Define additional DHCP options, for example \"<code>6,192.168.2.1," ..
 480                                 "192.168.2.2</code>\" which advertises different DNS servers to clients."))
 481
 482                 for i, n in ipairs(s.children) do
 483                         if n ~= ignore then
 484                                 n:depends("ignore", "")
 485                         end
 486                 end
 487
 488                 o = s:taboption("ipv6", ListValue, "ra", translate("Router Advertisement-Service"))
 489                 o:value("", translate("disabled"))
 490                 o:value("server", translate("server mode"))
 491                 o:value("relay", translate("relay mode"))
 492                 o:value("hybrid", translate("hybrid mode"))
 493
 494                 o = s:taboption("ipv6", ListValue, "dhcpv6", translate("DHCPv6-Service"))
 495                 o:value("", translate("disabled"))
 496                 o:value("server", translate("server mode"))
 497                 o:value("relay", translate("relay mode"))
 498                 o:value("hybrid", translate("hybrid mode"))
 499
 500                 o = s:taboption("ipv6", ListValue, "ndp", translate("NDP-Proxy"))
 501                 o:value("", translate("disabled"))
 502                 o:value("relay", translate("relay mode"))
 503                 o:value("hybrid", translate("hybrid mode"))
 504
 505                 o = s:taboption("ipv6", ListValue, "ra_management", translate("DHCPv6-Mode"))
 506                 o:value("", translate("stateless"))
 507                 o:value("1", translate("stateless + stateful"))
 508                 o:value("2", translate("stateful-only"))
 509                 o:depends("dhcpv6", "server")
 510                 o:depends("dhcpv6", "hybrid")
 511                 o.default = "1"
 512
 513                 o = s:taboption("ipv6", Flag, "ra_default", translate("Always announce default router"),
 514                         translate("Announce as default router even if no public prefix is available."))
 515                 o:depends("ra", "server")
 516                 o:depends("ra", "hybrid")
 517
 518                 s:taboption("ipv6", DynamicList, "dns", translate("Announced DNS servers"))
 519                 s:taboption("ipv6", DynamicList, "domain", translate("Announced DNS domains"))
 520
 521         else
 522                 m2 = nil
 523         end
 524 end
 525
 526
 527 return m, m2