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-- Copyright 2008 Steven Barth <steven@midlink.org>
-- Copyright 2010-2012 Jo-Philipp Wich <jow@openwrt.org>
-- Licensed to the public under the Apache License 2.0.
local ds = require "luci.dispatcher"
local ft = require "luci.tools.firewall"
m = Map("firewall",
translate("Firewall - Traffic Rules"),
translate("Traffic rules define policies for packets traveling between \
different zones, for example to reject traffic between certain hosts \
or to open WAN ports on the router."))
--
-- Rules
--
s = m:section(TypedSection, "rule", translate("Traffic Rules"))
s.addremove = true
s.anonymous = true
s.sortable = true
s.template = "cbi/tblsection"
s.extedit = ds.build_url("admin/network/firewall/rules/%s")
s.defaults.target = "ACCEPT"
s.template_addremove = "firewall/cbi_addrule"
function s.create(self, section)
created = TypedSection.create(self, section)
end
function s.parse(self, ...)
TypedSection.parse(self, ...)
local i_n = m:formvalue("_newopen.name")
local i_p = m:formvalue("_newopen.proto")
local i_e = m:formvalue("_newopen.extport")
local i_x = m:formvalue("_newopen.submit")
local f_n = m:formvalue("_newfwd.name")
local f_s = m:formvalue("_newfwd.src")
local f_d = m:formvalue("_newfwd.dest")
local f_x = m:formvalue("_newfwd.submit")
if i_x then
created = TypedSection.create(self, section)
self.map:set(created, "target", "ACCEPT")
self.map:set(created, "src", "wan")
self.map:set(created, "proto", (i_p ~= "other") and i_p or "all")
self.map:set(created, "dest_port", i_e)
self.map:set(created, "name", i_n)
if i_p ~= "other" and i_e and #i_e > 0 then
created = nil
end
elseif f_x then
created = TypedSection.create(self, section)
self.map:set(created, "target", "ACCEPT")
self.map:set(created, "src", f_s)
self.map:set(created, "dest", f_d)
self.map:set(created, "name", f_n)
end
if created then
m.uci:save("firewall")
luci.http.redirect(ds.build_url(
"admin/network/firewall/rules", created
))
end
end
function s.sectiontitle(self, sid)
return (self.map:get(sid, "name") or translate("Unnamed rule"))
end
local function rule_proto_txt(self, s)
local f = self.map:get(s, "family")
local p = ft.fmt_proto(self.map:get(s, "proto"),
self.map:get(s, "icmp_type")) or translate("traffic")
if f and f:match("4") then
return "%s-%s" %{ translate("IPv4"), p }
elseif f and f:match("6") then
return "%s-%s" %{ translate("IPv6"), p }
else
return "%s %s" %{ translate("Any"), p }
end
end
local function rule_src_txt(self, s)
local z = ft.fmt_zone(self.map:get(s, "src"))
local p = ft.fmt_port(self.map:get(s, "src_port"))
local m = ft.fmt_mac(self.map:get(s, "src_mac"))
-- Forward/Input
if z and #z > 0 then
local a = ft.fmt_ip(self.map:get(s, "src_ip"), translate("any host"))
if p and m then
return translatef("From %s in %s with source %s and %s", a, z, p, m)
elseif p or m then
return translatef("From %s in %s with source %s", a, z, p or m)
else
return translatef("From %s in %s", a, z)
end
-- Output
else
local a = ft.fmt_ip(self.map:get(s, "src_ip"), translate("any router IP"))
if p and m then
return translatef("From %s on <var>this device</var> with source %s and %s", a, p, m)
elseif p or m then
return translatef("From %s on <var>this device</var> with source %s", a, p or m)
else
return translatef("From %s on <var>this device</var>", a)
end
end
end
local function rule_dest_txt(self, s)
local z = ft.fmt_zone(self.map:get(s, "dest"))
local p = ft.fmt_port(self.map:get(s, "dest_port"))
-- Forward
if z then
local a = ft.fmt_ip(self.map:get(s, "dest_ip"), translate("any host"))
if p then
return translatef("To %s, %s in %s", a, p, z)
else
return translatef("To %s in %s", a, z)
end
-- Input
else
local a = ft.fmt_ip(self.map:get(s, "dest_ip"),
translate("any router IP"))
if p then
return translatef("To %s at %s on <var>this device</var>", a, p)
else
return translatef("To %s on <var>this device</var>", a)
end
end
end
local function snat_dest_txt(self, s)
local z = ft.fmt_zone(self.map:get(s, "dest"), translate("any zone"))
local a = ft.fmt_ip(self.map:get(s, "dest_ip"), translate("any host"))
local p = ft.fmt_port(self.map:get(s, "dest_port")) or
ft.fmt_port(self.map:get(s, "src_dport"))
if p then
return translatef("To %s, %s in %s", a, p, z)
else
return translatef("To %s in %s", a, z)
end
end
match = s:option(DummyValue, "match", translate("Match"))
match.rawhtml = true
function match.cfgvalue(self, s)
return "<small>%s<br />%s<br />%s</small>" % {
rule_proto_txt(self, s),
rule_src_txt(self, s),
rule_dest_txt(self, s)
}
end
target = s:option(DummyValue, "target", translate("Action"))
target.rawhtml = true
function target.cfgvalue(self, s)
local t = ft.fmt_target(self.map:get(s, "target"), self.map:get(s, "src"), self.map:get(s, "dest"))
local l = ft.fmt_limit(self.map:get(s, "limit"),
self.map:get(s, "limit_burst"))
if l then
return translatef("<var>%s</var> and limit to %s", t, l)
else
return "<var>%s</var>" % t
end
end
ft.opt_enabled(s, Flag, translate("Enable"))
--
-- SNAT
--
s = m:section(TypedSection, "redirect",
translate("Source NAT"),
translate("Source NAT is a specific form of masquerading which allows \
fine grained control over the source IP used for outgoing traffic, \
for example to map multiple WAN addresses to internal subnets."))
s.template = "cbi/tblsection"
s.addremove = true
s.anonymous = true
s.sortable = true
s.extedit = ds.build_url("admin/network/firewall/rules/%s")
s.template_addremove = "firewall/cbi_addsnat"
function s.create(self, section)
created = TypedSection.create(self, section)
end
function s.parse(self, ...)
TypedSection.parse(self, ...)
local n = m:formvalue("_newsnat.name")
local s = m:formvalue("_newsnat.src")
local d = m:formvalue("_newsnat.dest")
local a = m:formvalue("_newsnat.dip")
local p = m:formvalue("_newsnat.dport")
local x = m:formvalue("_newsnat.submit")
if x and a and #a > 0 then
created = TypedSection.create(self, section)
self.map:set(created, "target", "SNAT")
self.map:set(created, "src", s)
self.map:set(created, "dest", d)
self.map:set(created, "proto", "all")
self.map:set(created, "src_dip", a)
self.map:set(created, "src_dport", p)
self.map:set(created, "name", n)
end
if created then
m.uci:save("firewall")
luci.http.redirect(ds.build_url(
"admin/network/firewall/rules", created
))
end
end
function s.filter(self, sid)
return (self.map:get(sid, "target") == "SNAT")
end
function s.sectiontitle(self, sid)
return (self.map:get(sid, "name") or translate("Unnamed SNAT"))
end
match = s:option(DummyValue, "match", translate("Match"))
match.rawhtml = true
function match.cfgvalue(self, s)
return "<small>%s<br />%s<br />%s</small>" % {
rule_proto_txt(self, s),
rule_src_txt(self, s),
snat_dest_txt(self, s)
}
end
snat = s:option(DummyValue, "via", translate("Action"))
snat.rawhtml = true
function snat.cfgvalue(self, s)
local a = ft.fmt_ip(self.map:get(s, "src_dip"))
local p = ft.fmt_port(self.map:get(s, "src_dport"))
if a and p then
return translatef("Rewrite to source %s, %s", a, p)
else
return translatef("Rewrite to source %s", a or p)
end
end
ft.opt_enabled(s, Flag, translate("Enable"))
return m
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