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1#
2# IP netfilter configuration
3#
4
5menu "IPv6: Netfilter Configuration"
6 depends on INET && IPV6 && NETFILTER
7
8config NF_DEFRAG_IPV6
9 tristate
10 default n
11
12config NF_CONNTRACK_IPV6
13 tristate "IPv6 connection tracking support"
14 depends on INET && IPV6 && NF_CONNTRACK
15 default m if NETFILTER_ADVANCED=n
16 select NF_DEFRAG_IPV6
17 ---help---
18 Connection tracking keeps a record of what packets have passed
19 through your machine, in order to figure out how they are related
20 into connections.
21
22 This is IPv6 support on Layer 3 independent connection tracking.
23 Layer 3 independent connection tracking is experimental scheme
24 which generalize ip_conntrack to support other layer 3 protocols.
25
26 To compile it as a module, choose M here. If unsure, say N.
27
28config NF_SOCKET_IPV6
29 tristate "IPv6 socket lookup support"
30 help
31 This option enables the IPv6 socket lookup infrastructure. This
32 is used by the {ip6,nf}tables socket match.
33
34config NF_TPROXY_IPV6
35 tristate "IPv6 tproxy support"
36
37if NF_TABLES
38
39config NF_TABLES_IPV6
40 bool "IPv6 nf_tables support"
41 help
42 This option enables the IPv6 support for nf_tables.
43
44if NF_TABLES_IPV6
45
46config NFT_CHAIN_ROUTE_IPV6
47 tristate "IPv6 nf_tables route chain support"
48 help
49 This option enables the "route" chain for IPv6 in nf_tables. This
50 chain type is used to force packet re-routing after mangling header
51 fields such as the source, destination, flowlabel, hop-limit and
52 the packet mark.
53
54if NF_NAT_IPV6
55
56config NFT_CHAIN_NAT_IPV6
57 tristate "IPv6 nf_tables nat chain support"
58 help
59 This option enables the "nat" chain for IPv6 in nf_tables. This
60 chain type is used to perform Network Address Translation (NAT)
61 packet transformations such as the source, destination address and
62 source and destination ports.
63
64config NFT_MASQ_IPV6
65 tristate "IPv6 masquerade support for nf_tables"
66 depends on NFT_MASQ
67 select NF_NAT_MASQUERADE_IPV6
68 help
69 This is the expression that provides IPv4 masquerading support for
70 nf_tables.
71
72config NFT_REDIR_IPV6
73 tristate "IPv6 redirect support for nf_tables"
74 depends on NFT_REDIR
75 select NF_NAT_REDIRECT
76 help
77 This is the expression that provides IPv4 redirect support for
78 nf_tables.
79
80endif # NF_NAT_IPV6
81
82config NFT_REJECT_IPV6
83 select NF_REJECT_IPV6
84 default NFT_REJECT
85 tristate
86
87config NFT_DUP_IPV6
88 tristate "IPv6 nf_tables packet duplication support"
89 depends on !NF_CONNTRACK || NF_CONNTRACK
90 select NF_DUP_IPV6
91 help
92 This module enables IPv6 packet duplication support for nf_tables.
93
94config NFT_FIB_IPV6
95 tristate "nf_tables fib / ipv6 route lookup support"
96 select NFT_FIB
97 help
98 This module enables IPv6 FIB lookups, e.g. for reverse path filtering.
99 It also allows query of the FIB for the route type, e.g. local, unicast,
100 multicast or blackhole.
101
102endif # NF_TABLES_IPV6
103endif # NF_TABLES
104
105config NF_FLOW_TABLE_IPV6
106 tristate "Netfilter flow table IPv6 module"
107 depends on NF_FLOW_TABLE
108 help
109 This option adds the flow table IPv6 support.
110
111 To compile it as a module, choose M here.
112
113config NF_DUP_IPV6
114 tristate "Netfilter IPv6 packet duplication to alternate destination"
115 depends on !NF_CONNTRACK || NF_CONNTRACK
116 help
117 This option enables the nf_dup_ipv6 core, which duplicates an IPv6
118 packet to be rerouted to another destination.
119
120config NF_REJECT_IPV6
121 tristate "IPv6 packet rejection"
122 default m if NETFILTER_ADVANCED=n
123
124config NF_LOG_IPV6
125 tristate "IPv6 packet logging"
126 default m if NETFILTER_ADVANCED=n
127 select NF_LOG_COMMON
128
129config NF_NAT_IPV6
130 tristate "IPv6 NAT"
131 depends on NF_CONNTRACK_IPV6
132 depends on NETFILTER_ADVANCED
133 select NF_NAT
134 help
135 The IPv6 NAT option allows masquerading, port forwarding and other
136 forms of full Network Address Port Translation. This can be
137 controlled by iptables or nft.
138
139if NF_NAT_IPV6
140
141config NF_NAT_MASQUERADE_IPV6
142 bool
143
144endif # NF_NAT_IPV6
145
146config IP6_NF_IPTABLES
147 tristate "IP6 tables support (required for filtering)"
148 depends on INET && IPV6
149 select NETFILTER_XTABLES
150 default m if NETFILTER_ADVANCED=n
151 help
152 ip6tables is a general, extensible packet identification framework.
153 Currently only the packet filtering and packet mangling subsystem
154 for IPv6 use this, but connection tracking is going to follow.
155 Say 'Y' or 'M' here if you want to use either of those.
156
157 To compile it as a module, choose M here. If unsure, say N.
158
159if IP6_NF_IPTABLES
160
161# The simple matches.
162config IP6_NF_MATCH_AH
163 tristate '"ah" match support'
164 depends on NETFILTER_ADVANCED
165 help
166 This module allows one to match AH packets.
167
168 To compile it as a module, choose M here. If unsure, say N.
169
170config IP6_NF_MATCH_EUI64
171 tristate '"eui64" address check'
172 depends on NETFILTER_ADVANCED
173 help
174 This module performs checking on the IPv6 source address
175 Compares the last 64 bits with the EUI64 (delivered
176 from the MAC address) address
177
178 To compile it as a module, choose M here. If unsure, say N.
179
180config IP6_NF_MATCH_FRAG
181 tristate '"frag" Fragmentation header match support'
182 depends on NETFILTER_ADVANCED
183 help
184 frag matching allows you to match packets based on the fragmentation
185 header of the packet.
186
187 To compile it as a module, choose M here. If unsure, say N.
188
189config IP6_NF_MATCH_OPTS
190 tristate '"hbh" hop-by-hop and "dst" opts header match support'
191 depends on NETFILTER_ADVANCED
192 help
193 This allows one to match packets based on the hop-by-hop
194 and destination options headers of a packet.
195
196 To compile it as a module, choose M here. If unsure, say N.
197
198config IP6_NF_MATCH_HL
199 tristate '"hl" hoplimit match support'
200 depends on NETFILTER_ADVANCED
201 select NETFILTER_XT_MATCH_HL
202 ---help---
203 This is a backwards-compat option for the user's convenience
204 (e.g. when running oldconfig). It selects
205 CONFIG_NETFILTER_XT_MATCH_HL.
206
207config IP6_NF_MATCH_IPV6HEADER
208 tristate '"ipv6header" IPv6 Extension Headers Match'
209 default m if NETFILTER_ADVANCED=n
210 help
211 This module allows one to match packets based upon
212 the ipv6 extension headers.
213
214 To compile it as a module, choose M here. If unsure, say N.
215
216config IP6_NF_MATCH_MH
217 tristate '"mh" match support'
218 depends on NETFILTER_ADVANCED
219 help
220 This module allows one to match MH packets.
221
222 To compile it as a module, choose M here. If unsure, say N.
223
224config IP6_NF_MATCH_RPFILTER
225 tristate '"rpfilter" reverse path filter match support'
226 depends on NETFILTER_ADVANCED
227 depends on IP6_NF_MANGLE || IP6_NF_RAW
228 ---help---
229 This option allows you to match packets whose replies would
230 go out via the interface the packet came in.
231
232 To compile it as a module, choose M here. If unsure, say N.
233 The module will be called ip6t_rpfilter.
234
235config IP6_NF_MATCH_RT
236 tristate '"rt" Routing header match support'
237 depends on NETFILTER_ADVANCED
238 help
239 rt matching allows you to match packets based on the routing
240 header of the packet.
241
242 To compile it as a module, choose M here. If unsure, say N.
243
244config IP6_NF_MATCH_SRH
245 tristate '"srh" Segment Routing header match support'
246 depends on NETFILTER_ADVANCED
247 help
248 srh matching allows you to match packets based on the segment
249 routing header of the packet.
250
251 To compile it as a module, choose M here. If unsure, say N.
252
253# The targets
254config IP6_NF_TARGET_HL
255 tristate '"HL" hoplimit target support'
256 depends on NETFILTER_ADVANCED && IP6_NF_MANGLE
257 select NETFILTER_XT_TARGET_HL
258 ---help---
259 This is a backwards-compatible option for the user's convenience
260 (e.g. when running oldconfig). It selects
261 CONFIG_NETFILTER_XT_TARGET_HL.
262
263config IP6_NF_FILTER
264 tristate "Packet filtering"
265 default m if NETFILTER_ADVANCED=n
266 help
267 Packet filtering defines a table `filter', which has a series of
268 rules for simple packet filtering at local input, forwarding and
269 local output. See the man page for iptables(8).
270
271 To compile it as a module, choose M here. If unsure, say N.
272
273config IP6_NF_TARGET_REJECT
274 tristate "REJECT target support"
275 depends on IP6_NF_FILTER
276 select NF_REJECT_IPV6
277 default m if NETFILTER_ADVANCED=n
278 help
279 The REJECT target allows a filtering rule to specify that an ICMPv6
280 error should be issued in response to an incoming packet, rather
281 than silently being dropped.
282
283 To compile it as a module, choose M here. If unsure, say N.
284
285config IP6_NF_TARGET_SYNPROXY
286 tristate "SYNPROXY target support"
287 depends on NF_CONNTRACK && NETFILTER_ADVANCED
288 select NETFILTER_SYNPROXY
289 select SYN_COOKIES
290 help
291 The SYNPROXY target allows you to intercept TCP connections and
292 establish them using syncookies before they are passed on to the
293 server. This allows to avoid conntrack and server resource usage
294 during SYN-flood attacks.
295
296 To compile it as a module, choose M here. If unsure, say N.
297
298config IP6_NF_MANGLE
299 tristate "Packet mangling"
300 default m if NETFILTER_ADVANCED=n
301 help
302 This option adds a `mangle' table to iptables: see the man page for
303 iptables(8). This table is used for various packet alterations
304 which can effect how the packet is routed.
305
306 To compile it as a module, choose M here. If unsure, say N.
307
308config IP6_NF_RAW
309 tristate 'raw table support (required for TRACE)'
310 help
311 This option adds a `raw' table to ip6tables. This table is the very
312 first in the netfilter framework and hooks in at the PREROUTING
313 and OUTPUT chains.
314
315 If you want to compile it as a module, say M here and read
316 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
317
318# security table for MAC policy
319config IP6_NF_SECURITY
320 tristate "Security table"
321 depends on SECURITY
322 depends on NETFILTER_ADVANCED
323 help
324 This option adds a `security' table to iptables, for use
325 with Mandatory Access Control (MAC) policy.
326
327 If unsure, say N.
328
329config IP6_NF_NAT
330 tristate "ip6tables NAT support"
331 depends on NF_CONNTRACK_IPV6
332 depends on NETFILTER_ADVANCED
333 select NF_NAT
334 select NF_NAT_IPV6
335 select NETFILTER_XT_NAT
336 help
337 This enables the `nat' table in ip6tables. This allows masquerading,
338 port forwarding and other forms of full Network Address Port
339 Translation.
340
341 To compile it as a module, choose M here. If unsure, say N.
342
343if IP6_NF_NAT
344
345config IP6_NF_TARGET_MASQUERADE
346 tristate "MASQUERADE target support"
347 select NF_NAT_MASQUERADE_IPV6
348 help
349 Masquerading is a special case of NAT: all outgoing connections are
350 changed to seem to come from a particular interface's address, and
351 if the interface goes down, those connections are lost. This is
352 only useful for dialup accounts with dynamic IP address (ie. your IP
353 address will be different on next dialup).
354
355 To compile it as a module, choose M here. If unsure, say N.
356
357config IP6_NF_TARGET_NPT
358 tristate "NPT (Network Prefix translation) target support"
359 help
360 This option adds the `SNPT' and `DNPT' target, which perform
361 stateless IPv6-to-IPv6 Network Prefix Translation per RFC 6296.
362
363 To compile it as a module, choose M here. If unsure, say N.
364
365endif # IP6_NF_NAT
366
367endif # IP6_NF_IPTABLES
368
369endmenu
370