Add MSS Clamping option for Essentials (closes #45)

[project/luci.git] / modules / admin-mini / luasrc / model / cbi / mini / network.lua

diff --git a/modules/admin-mini/luasrc/model/cbi/mini/network.lua b/modules/admin-mini/luasrc/model/cbi/mini/network.lua
index d03e6a77732e25a4b754b07b2568d36523d1eea5..508bac155cd2391cebe4964a8a581fbfa6e0c97a 100644 (file)
--- a/modules/admin-mini/luasrc/model/cbi/mini/network.lua
+++ b/modules/admin-mini/luasrc/model/cbi/mini/network.lua
@@ -109,6 +109,16 @@ p:value("dhcp", translate("automatic", "automatic"))
 if has_pppoe then p:value("pppoe", "PPPoE") end
 if has_pptp  then p:value("pptp",  "PPTP")  end
 
+function p.write(self, section, value)
+       -- Always set defaultroute to PPP and use remote dns
+       -- Overwrite a bad variable behaviour in OpenWrt
+       if value == "pptp" or value == "pppoe" then
+               self.map:set(section, "peerdns", "1")
+               self.map:set(section, "defaultroute", "1")
+       end
+       return ListValue.write(self, section, value)
+end
+
 if not ( has_pppoe and has_pptp ) then
        p.description = translate("network_interface_prereq_mini")
 end
@@ -137,6 +147,34 @@ pwd.password = true
 pwd:depends("proto", "pppoe")
 pwd:depends("proto", "pptp")
 
+
+-- Allow user to set MSS correction here if the UCI firewall is installed
+-- This cures some cancer for providers with pre-war routers
+if luci.fs.access("/etc/config/firewall") then
+       mssfix = s:option(Flag, "_mssfix",
+               translate("m_n_mssfix"), translate("m_n_mssfix_desc"))
+       mssfix.rmempty = false
+
+       function mssfix.cfgvalue(self)
+               local value
+               m.uci:foreach("firewall", "forwarding", function(s)
+                       if s.src == "lan" and s.dest == "wan" then
+                               value = s.mtu_fix
+                       end
+               end)
+               return value
+       end
+
+       function mssfix.write(self, section, value)
+               m.uci:foreach("firewall", "forwarding", function(s)
+                       if s.src == "lan" and s.dest == "wan" then
+                               m.uci:set("firewall", s[".name"], "mtu_fix", value)
+                               m:chain("firewall")
+                       end
+               end)
+       end
+end
+
 kea = s:option(Flag, "keepalive", translate("m_n_keepalive"))
 kea:depends("proto", "pppoe")
 kea:depends("proto", "pptp")