applications/luci-firewall/luasrc/model/cbi/firewall/rules.lua

   1 --[[
   2 LuCI - Lua Configuration Interface
   3
   4 Copyright 2008 Steven Barth <steven@midlink.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 $Id$
  13 ]]--
  14
  15 local ds = require "luci.dispatcher"
  16 local ft = require "luci.tools.firewall"
  17
  18 m = Map("firewall",
  19         translate("Firewall - Traffic Rules"),
  20         translate("Traffic rules define policies for packets traveling between \
  21                 different zones, for example to reject traffic between certain hosts \
  22                 or to open WAN ports on the router."))
  23
  24 --
  25 -- Rules
  26 --
  27
  28 s = m:section(TypedSection, "rule", translate("Traffic Rules"))
  29 s.addremove = true
  30 s.anonymous = true
  31 s.sortable  = true
  32 s.template = "cbi/tblsection"
  33 s.extedit   = ds.build_url("admin/network/firewall/rules/%s")
  34 s.defaults.target = "ACCEPT"
  35 s.template_addremove = "firewall/cbi_addrule"
  36
  37
  38 function s.create(self, section)
  39         created = TypedSection.create(self, section)
  40 end
  41
  42 function s.parse(self, ...)
  43         TypedSection.parse(self, ...)
  44
  45         local i_n = m:formvalue("_newopen.name")
  46         local i_p = m:formvalue("_newopen.proto")
  47         local i_e = m:formvalue("_newopen.extport")
  48         local i_x = m:formvalue("_newopen.submit")
  49
  50         local f_n = m:formvalue("_newfwd.name")
  51         local f_s = m:formvalue("_newfwd.src")
  52         local f_d = m:formvalue("_newfwd.dest")
  53         local f_x = m:formvalue("_newfwd.submit")
  54
  55         if i_x then
  56                 created = TypedSection.create(self, section)
  57
  58                 self.map:set(created, "target",    "ACCEPT")
  59                 self.map:set(created, "src",       "wan")
  60                 self.map:set(created, "proto",     (i_p ~= "other") and i_p or "all")
  61                 self.map:set(created, "dest_port", i_e)
  62                 self.map:set(created, "_name",     i_n)
  63
  64                 if i_p ~= "other" and i_e and #i_e > 0 then
  65                         created = nil
  66                 end
  67
  68         elseif f_x then
  69                 created = TypedSection.create(self, section)
  70
  71                 self.map:set(created, "target", "ACCEPT")
  72                 self.map:set(created, "src",    f_s)
  73                 self.map:set(created, "dest",   f_d)
  74                 self.map:set(created, "_name",  f_n)
  75         end
  76
  77         if created then
  78                 m.uci:save("firewall")
  79                 luci.http.redirect(ds.build_url(
  80                         "admin/network/firewall/rules", created
  81                 ))
  82         end
  83 end
  84
  85 name = s:option(DummyValue, "_name", translate("Name"))
  86 function name.cfgvalue(self, s)
  87         return self.map:get(s, "_name") or "-"
  88 end
  89
  90 family = s:option(DummyValue, "family", translate("Family"))
  91 function family.cfgvalue(self, s)
  92         local f = self.map:get(s, "family")
  93         if f and f:match("4") then
  94                 return translate("IPv4")
  95         elseif f and f:match("6") then
  96                 return translate("IPv6")
  97         else
  98                 return translate("Any")
  99         end
 100 end
 101
 102 proto = s:option(DummyValue, "proto", translate("Protocol"))
 103 proto.rawhtml = true
 104 proto.width   = "20%"
 105 function proto.cfgvalue(self, s)
 106         return ft.fmt_proto(self.map:get(s, "proto"), self.map:get(s, "icmp_type"))
 107                 or "TCP+UDP"
 108 end
 109
 110 src = s:option(DummyValue, "src", translate("Source"))
 111 src.rawhtml = true
 112 src.width   = "20%"
 113 function src.cfgvalue(self, s)
 114         local z = ft.fmt_zone(self.map:get(s, "src"), translate("any zone"))
 115         local a = ft.fmt_ip(self.map:get(s, "src_ip"), translate("any host"))
 116         local p = ft.fmt_port(self.map:get(s, "src_port"))
 117         local m = ft.fmt_mac(self.map:get(s, "src_mac"))
 118
 119         if p and m then
 120                 return translatef("From %s in %s with source %s and %s", a, z, p, m)
 121         elseif p or m then
 122                 return translatef("From %s in %s with source %s", a, z, p or m)
 123         else
 124                 return translatef("From %s in %s", a, z)
 125         end
 126 end
 127
 128 dest = s:option(DummyValue, "dest", translate("Destination"))
 129 dest.rawhtml = true
 130 dest.width   = "20%"
 131 function dest.cfgvalue(self, s)
 132         local z = ft.fmt_zone(self.map:get(s, "dest"))
 133         local p = ft.fmt_port(self.map:get(s, "dest_port"))
 134
 135         -- Forward
 136         if z then
 137                 local a = ft.fmt_ip(self.map:get(s, "dest_ip"), translate("any host"))
 138                 if p then
 139                         return translatef("To %s, %s in %s", a, p, z)
 140                 else
 141                         return translatef("To %s in %s", a, z)
 142                 end
 143
 144         -- Input
 145         else
 146                 local a = ft.fmt_ip(self.map:get(s, "dest_ip"),
 147                         translate("any router IP"))
 148
 149                 if p then
 150                         return translatef("To %s at %s on <var>this device</var>", a, p)
 151                 else
 152                         return translatef("To %s on <var>this device</var>", a)
 153                 end
 154         end
 155 end
 156
 157
 158 target = s:option(DummyValue, "target", translate("Action"))
 159 target.rawhtml = true
 160 target.width   = "20%"
 161 function target.cfgvalue(self, s)
 162         local t = ft.fmt_target(self.map:get(s, "target"), self.map:get(s, "dest"))
 163         local l = ft.fmt_limit(self.map:get(s, "limit"),
 164                 self.map:get(s, "limit_burst"))
 165
 166         if l then
 167                 return translatef("<var>%s</var> and limit to %s", t, l)
 168         else
 169                 return "<var>%s</var>" % t
 170         end
 171 end
 172
 173
 174 --
 175 -- SNAT
 176 --
 177
 178 s = m:section(TypedSection, "redirect",
 179         translate("Source NAT"),
 180         translate("Source NAT is a specific form of masquerading which allows \
 181                 fine grained control over the source IP used for outgoing traffic, \
 182                 for example to map multiple WAN addresses to internal subnets."))
 183 s.template  = "cbi/tblsection"
 184 s.addremove = true
 185 s.anonymous = true
 186 s.sortable  = true
 187 s.extedit   = ds.build_url("admin/network/firewall/rules/%s")
 188 s.template_addremove = "firewall/cbi_addsnat"
 189
 190 function s.create(self, section)
 191         created = TypedSection.create(self, section)
 192 end
 193
 194 function s.parse(self, ...)
 195         TypedSection.parse(self, ...)
 196
 197         local n = m:formvalue("_newsnat.name")
 198         local s = m:formvalue("_newsnat.src")
 199         local d = m:formvalue("_newsnat.dest")
 200         local a = m:formvalue("_newsnat.dip")
 201         local p = m:formvalue("_newsnat.dport")
 202         local x = m:formvalue("_newsnat.submit")
 203
 204         if x and a and #a > 0 then
 205                 created = TypedSection.create(self, section)
 206
 207                 self.map:set(created, "target",    "SNAT")
 208                 self.map:set(created, "src",       s)
 209                 self.map:set(created, "dest",      d)
 210                 self.map:set(created, "proto",     "all")
 211                 self.map:set(created, "src_dip",   a)
 212                 self.map:set(created, "src_dport", p)
 213                 self.map:set(created, "_name",     n)
 214         end
 215
 216         if created then
 217                 m.uci:save("firewall")
 218                 luci.http.redirect(ds.build_url(
 219                         "admin/network/firewall/rules", created
 220                 ))
 221         end
 222 end
 223
 224 function s.filter(self, sid)
 225         return (self.map:get(sid, "target") == "SNAT")
 226 end
 227
 228 name = s:option(DummyValue, "_name", translate("Name"))
 229 function name.cfgvalue(self, s)
 230         return self.map:get(s, "_name") or "-"
 231 end
 232
 233 proto = s:option(DummyValue, "proto", translate("Protocol"))
 234 proto.rawhtml = true
 235 function proto.cfgvalue(self, s)
 236         return ft.fmt_proto(self.map:get(s, "proto")) or "TCP+UDP"
 237 end
 238
 239
 240 src = s:option(DummyValue, "src", translate("Source"))
 241 src.rawhtml = true
 242 src.width   = "20%"
 243 function src.cfgvalue(self, s)
 244         local z = ft.fmt_zone(self.map:get(s, "src"), translate("any zone"))
 245         local a = ft.fmt_ip(self.map:get(s, "src_ip"), translate("any host"))
 246         local p = ft.fmt_port(self.map:get(s, "src_port"))
 247         local m = ft.fmt_mac(self.map:get(s, "src_mac"))
 248
 249         if p and m then
 250                 return translatef("From %s in %s with source %s and %s", a, z, p, m)
 251         elseif p or m then
 252                 return translatef("From %s in %s with source %s", a, z, p or m)
 253         else
 254                 return translatef("From %s in %s", a, z)
 255         end
 256 end
 257
 258 dest = s:option(DummyValue, "dest", translate("Destination"))
 259 dest.rawhtml = true
 260 dest.width   = "30%"
 261 function dest.cfgvalue(self, s)
 262         local z = ft.fmt_zone(self.map:get(s, "dest"), translate("any zone"))
 263         local a = ft.fmt_ip(self.map:get(s, "dest_ip"), translate("any host"))
 264         local p = ft.fmt_port(self.map:get(s, "dest_port")) or
 265                 ft.fmt_port(self.map:get(s, "src_dport"))
 266
 267         if p then
 268                 return translatef("To %s, %s in %s", a, p, z)
 269         else
 270                 return translatef("To %s in %s", a, z)
 271         end
 272 end
 273
 274 snat = s:option(DummyValue, "via", translate("SNAT"))
 275 snat.rawhtml = true
 276 snat.width   = "20%"
 277 function snat.cfgvalue(self, s)
 278         local a = ft.fmt_ip(self.map:get(s, "src_dip"))
 279         local p = ft.fmt_port(self.map:get(s, "src_dport"))
 280
 281         if a and p then
 282                 return translatef("Rewrite to source %s, %s", a, p)
 283         else
 284                 return translatef("Rewrite to source %s", a or p)
 285         end
 286 end
 287
 288
 289 return m