1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
-- 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
ft.opt_name(s, DummyValue, translate("Name"))
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"), translate("any zone"))
local a = ft.fmt_ip(self.map:get(s, "src_ip"), translate("any host"))
local p = ft.fmt_port(self.map:get(s, "src_port"))
local m = ft.fmt_mac(self.map:get(s, "src_mac"))
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
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
match.width = "70%"
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
target.width = "20%"
function target.cfgvalue(self, s)
local t = ft.fmt_target(self.map:get(s, "target"), 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")).width = "1%"
--
-- 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
ft.opt_name(s, DummyValue, translate("Name"))
match = s:option(DummyValue, "match", translate("Match"))
match.rawhtml = true
match.width = "70%"
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
snat.width = "20%"
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")).width = "1%"
return m
|
