--- /dev/null
+--[[
+LuCI - Lua Configuration Interface
+
+Copyright 2008 Steven Barth <steven@midlink.org>
+Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+$Id$
+
+]]--
+
+local uci = require "luci.model.uci".cursor()
+
+-------------------- Init --------------------
+
+--
+-- Find link-local address
+--
+LL_PREFIX = luci.ip.IPv6("fe80::/64")
+function find_ll()
+ for _, r in ipairs(luci.sys.net.routes6()) do
+ if LL_PREFIX:contains(r.dest) and r.dest:higher(LL_PREFIX) then
+ return r.dest:sub(LL_PREFIX)
+ end
+ end
+ return luci.ip.IPv6("::")
+end
+
+--
+-- Determine defaults
+--
+local ula_prefix = uci:get("siit", "ipv6", "ula_prefix") or "fd00::"
+local ula_global = uci:get("siit", "ipv6", "ula_global") or "00ca:ffee:babe::" -- = Freifunk
+local ula_subnet = uci:get("siit", "ipv6", "ula_subnet") or "0000:0000:0000:4223::" -- = Berlin
+local siit_prefix = uci:get("siit", "ipv6", "siit_prefix") or "::ffff:0000:0000"
+local ipv4_pool = uci:get("siit", "ipv4", "pool") or "172.16.0.0/12"
+local ipv4_netsz = uci:get("siit", "ipv4", "netsize") or "24"
+
+--
+-- Find IPv4 allocation pool
+--
+local gv4_net = luci.ip.IPv4(ipv4_pool)
+
+--
+-- Generate ULA
+--
+local ula = luci.ip.IPv6("::/64")
+
+for _, prefix in ipairs({ ula_prefix, ula_global, ula_subnet }) do
+ ula = ula:add(luci.ip.IPv6(prefix))
+end
+
+ula = ula:add(find_ll())
+
+
+-------------------- View --------------------
+f = SimpleForm("siitwizward", "SIIT-Wizzard",
+ "This wizzard helps to setup SIIT (IPv4-over-IPv6) translation according to RFC2765.")
+
+f:field(DummyValue, "info_ula", "Mesh ULA address").value = ula:string()
+
+f:field(DummyValue, "ipv4_pool", "IPv4 allocation pool").value =
+ "%s (%i hosts)" %{ gv4_net:string(), 2 ^ ( 32 - gv4_net:prefix() ) - 2 }
+
+f:field(DummyValue, "ipv4_size", "IPv4 LAN network prefix").value =
+ "%i bit (%i hosts)" %{ ipv4_netsz, 2 ^ ( 32 - ipv4_netsz ) - 2 }
+
+mode = f:field(ListValue, "mode", "Operation mode")
+mode:value("client", "Client")
+mode:value("gateway", "Gateway")
+
+dev = f:field(ListValue, "device", "Wireless device")
+uci:foreach("wireless", "wifi-device",
+ function(section)
+ dev:value(section[".name"])
+ end)
+
+lanip = f:field(Value, "ipaddr", "LAN IPv4 subnet")
+function lanip.formvalue(self, section)
+ local val = self.map:formvalue(self:cbid(section))
+ local net = luci.ip.IPv4("%s/%i" %{ val, ipv4_netsz })
+
+ if net then
+ if gv4_net:contains(net) then
+ if not net:minhost():equal(net:host()) then
+ self.error = { [section] = true }
+ f.errmessage = "IPv4 address is not the first host of " ..
+ "subnet, expected " .. net:minhost():string()
+ end
+ else
+ self.error = { [section] = true }
+ f.errmessage = "IPv4 address is not within the allocation pool"
+ end
+ else
+ self.error = { [section] = true }
+ f.errmessage = "Invalid IPv4 address given"
+ end
+
+ return val
+end
+
+dns = f:field(Value, "dns", "DNS server for LAN clients")
+dns.value = "141.1.1.1"
+
+-------------------- Control --------------------
+function f.handle(self, state, data)
+ if state == FORM_VALID then
+ luci.http.redirect(luci.dispatcher.build_url("admin", "uci", "changes"))
+ return false
+ end
+ return true
+end
+
+function mode.write(self, section, value)
+
+ --
+ -- Find LAN IPv4 range
+ --
+ local lan_net = luci.ip.IPv4(
+ ( lanip:formvalue(section) or "172.16.0.1" ) .. "/" .. ipv4_netsz
+ )
+
+ if not lan_net then return end
+
+ --
+ -- Find wifi interface, dns server and hostname
+ --
+ local device = dev:formvalue(section)
+ local dns_server = dns:formvalue(section) or "141.1.1.1"
+ local hostname = "siit-" .. lan_net:host():string():gsub("%.","-")
+
+ --
+ -- Configure wifi device
+ --
+ local wifi_device = dev:formvalue(section)
+ local wifi_essid = uci:get("siit", "wifi", "essid") or "6mesh.freifunk.net"
+ local wifi_bssid = uci:get("siit", "wifi", "bssid") or "02:ca:ff:ee:ba:be"
+ local wifi_channel = uci:get("siit", "wifi", "channel") or "1"
+
+ -- nuke old device definition
+ uci:delete_all("wireless", "wifi-iface",
+ function(s) return s.device == wifi_device end )
+
+ uci:delete_all("network", "interface",
+ function(s) return s['.name'] == wifi_device end )
+
+ -- create wifi device definition
+ uci:tset("wireless", wifi_device, {
+ disabled = 0,
+ channel = wifi_channel,
+-- txantenna = 1,
+-- rxantenna = 1,
+-- diversity = 0
+ })
+
+ uci:section("wireless", "wifi-iface", nil, {
+ encryption = "none",
+ mode = "adhoc",
+ txpower = 10,
+ sw_merge = 1,
+ network = wifi_device,
+ device = wifi_device,
+ ssid = wifi_essid,
+ bssid = wifi_bssid,
+ })
+
+ --
+ -- Gateway mode
+ --
+ -- * wan port is dhcp, lan port is 172.23.1.1/24
+ -- * siit0 gets a dummy address: 169.254.42.42
+ -- * wl0 gets an ipv6 address, in this case the fdca:ffee:babe::1:1/64
+ -- * we do a ::ffff:ffff:0/96 route into siit0, so everything from 6mesh goes into translation.
+ -- * an HNA6 of ::ffff:ffff:0:0/96 announces the mapped 0.0.0.0/0 ipv4 space.
+ -- * MTU on WAN, LAN down to 1400, ipv6 headers are slighly larger.
+
+ if value == "gateway" then
+
+ -- wan mtu
+ uci:set("network", "wan", "mtu", 1240)
+
+ -- lan settings
+ uci:tset("network", "lan", {
+ mtu = 1240,
+ ipaddr = lan_net:host():string(),
+ netmask = lan_net:mask():string(),
+ proto = "static"
+ })
+
+ -- use full siit subnet
+ siit_route = luci.ip.IPv6(siit_prefix .. "/96")
+
+ -- v4 <-> siit route
+ uci:delete_all("network", "route",
+ function(s) return s.interface == "siit0" end)
+
+ uci:section("network", "route", nil, {
+ interface = "siit0",
+ target = gv4_net:network():string(),
+ netmask = gv4_net:mask():string()
+ })
+
+ --
+ -- Client mode
+ --
+ -- * 172.23.2.1/24 on its lan, fdca:ffee:babe::1:2 on wl0 and the usual dummy address on siit0.
+ -- * we do a ::ffff:ffff:172.13.2.0/120 to siit0, because in this case, only traffic directed to clients needs to go into translation.
+ -- * same route as HNA6 announcement to catch the traffic out of the mesh.
+ -- * Also, MTU on LAN reduced to 1400.
+
+ else
+
+ -- lan settings
+ uci:tset("network", "lan", {
+ mtu = 1240,
+ ipaddr = lan_net:host():string(),
+ netmask = lan_net:mask():string()
+ })
+
+ -- derive siit subnet from lan config
+ siit_route = luci.ip.IPv6(
+ siit_prefix .. "/" .. (96 + lan_net:prefix())
+ ):add(lan_net[2])
+
+ -- ipv4 <-> siit route
+ uci:delete_all("network", "route",
+ function(s) return s.interface == "siit0" end)
+
+ -- XXX: kind of a catch all, gv4_net would be better
+ -- but does not cover non-local v4 space
+ uci:section("network", "route", nil, {
+ interface = "siit0",
+ target = "0.0.0.0",
+ netmask = "0.0.0.0"
+ })
+ end
+
+ -- setup the firewall
+ uci:delete_all("firewall", "zone",
+ function(s) return (
+ s['.name'] == "siit0" or s.name == "siit0" or
+ s.network == "siit0" or s['.name'] == wifi_device or
+ s.name == wifi_device or s.network == wifi_device
+ ) end)
+
+ uci:delete_all("firewall", "forwarding",
+ function(s) return (
+ s.src == wifi_device and s.dest == "siit0" or
+ s.dest == wifi_device and s.src == "siit0" or
+ s.src == "lan" and s.dest == "siit0" or
+ s.dest == "lan" and s.src == "siit0"
+ ) end)
+
+ uci:section("firewall", "zone", "siit0", {
+ name = "siit0",
+ network = "siit0",
+ input = "ACCEPT",
+ output = "ACCEPT",
+ forward = "ACCEPT"
+ })
+
+ uci:section("firewall", "zone", wifi_device, {
+ name = wifi_device,
+ network = wifi_device,
+ input = "ACCEPT",
+ output = "ACCEPT",
+ forward = "ACCEPT"
+ })
+
+ uci:section("firewall", "forwarding", nil, {
+ src = wifi_device,
+ dest = "siit0"
+ })
+
+ uci:section("firewall", "forwarding", nil, {
+ src = "siit0",
+ dest = wifi_device
+ })
+
+ uci:section("firewall", "forwarding", nil, {
+ src = "lan",
+ dest = "siit0"
+ })
+
+ uci:section("firewall", "forwarding", nil, {
+ src = "siit0",
+ dest = "lan"
+ })
+
+ -- firewall include
+ uci:delete_all("firewall", "include",
+ function(s) return s.path == "/etc/firewall.user" end)
+
+ uci:section("firewall", "include", nil, {
+ path = "/etc/firewall.user"
+ })
+
+
+ -- siit0 interface
+ uci:delete_all("network", "interface",
+ function(s) return ( s.ifname == "siit0" ) end)
+
+ uci:section("network", "interface", "siit0", {
+ ifname = "siit0",
+ proto = "none"
+ })
+
+ -- siit0 route
+ uci:delete_all("network", "route6",
+ function(s) return siit_route:contains(luci.ip.IPv6(s.target)) end)
+
+ uci:section("network", "route6", nil, {
+ interface = "siit0",
+ target = siit_route:string()
+ })
+
+ -- create wifi network interface
+ uci:section("network", "interface", wifi_device, {
+ proto = "static",
+ mtu = 1400,
+ ip6addr = ula:string()
+ })
+
+ -- nuke old olsrd interfaces
+ uci:delete_all("olsrd", "Interface",
+ function(s) return s.interface == wifi_device end)
+
+ -- configure olsrd interface
+ uci:foreach("olsrd", "olsrd",
+ function(s) uci:set("olsrd", s['.name'], "IpVersion", 6) end)
+
+ uci:section("olsrd", "Interface", nil, {
+ ignore = 0,
+ interface = wifi_device,
+ Ip6AddrType = "unique-local"
+ })
+
+ -- hna6
+ uci:delete_all("olsrd", "Hna6",
+ function(s) return true end)
+
+ uci:section("olsrd", "Hna6", nil, {
+ netaddr = siit_route:host():string(),
+ prefix = siit_route:prefix()
+ })
+
+ -- txtinfo v6 & olsrd nameservice
+ uci:foreach("olsrd", "LoadPlugin",
+ function(s)
+ if s.library == "olsrd_txtinfo.so.0.1" then
+ uci:set("olsrd", s['.name'], "accept", "::1")
+ elseif s.library == "olsrd_nameservice.so.0.3" then
+ uci:set("olsrd", s['.name'], "name", hostname)
+ end
+ end)
+
+ -- lan dns
+ uci:tset("dhcp", "lan", {
+ dhcp_option = "6," .. dns_server,
+ start = bit.band(lan_net:minhost():add(1)[2][2], 0xFF),
+ limit = ( 2 ^ ( 32 - lan_net:prefix() ) ) - 3
+ })
+
+ -- hostname
+ uci:foreach("system", "system",
+ function(s)
+ uci:set("system", s['.name'], "hostname", hostname)
+ end)
+
+ uci:save("wireless")
+ uci:save("firewall")
+ uci:save("network")
+ uci:save("system")
+ uci:save("olsrd")
+ uci:save("dhcp")
+end
+
+return f
projects / project / luci.git / blobdiff