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Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -08001menu "Core Netfilter Configuration"
Patrick McHardy3a411352006-12-12 00:27:46 -08002 depends on NET && INET && NETFILTER
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -08003
Harald Weltef9e815b2005-08-09 19:30:24 -07004config NETFILTER_NETLINK
Patrick McHardy2eeeba32007-12-05 01:31:52 -08005 tristate
Harald Welte7af4cc32005-08-09 19:44:15 -07006
7config NETFILTER_NETLINK_QUEUE
8 tristate "Netfilter NFQUEUE over NFNETLINK interface"
Patrick McHardy33b8e772007-12-17 22:47:05 -08009 depends on NETFILTER_ADVANCED
Patrick McHardy2eeeba32007-12-05 01:31:52 -080010 select NETFILTER_NETLINK
Harald Welte7af4cc32005-08-09 19:44:15 -070011 help
Thomas Vögtle50b521a2006-03-22 13:53:48 -080012 If this option is enabled, the kernel will include support
Harald Welte7af4cc32005-08-09 19:44:15 -070013 for queueing packets via NFNETLINK.
14
Harald Welte0597f262005-08-09 19:58:39 -070015config NETFILTER_NETLINK_LOG
16 tristate "Netfilter LOG over NFNETLINK interface"
Patrick McHardy33b8e772007-12-17 22:47:05 -080017 default m if NETFILTER_ADVANCED=n
Patrick McHardy2eeeba32007-12-05 01:31:52 -080018 select NETFILTER_NETLINK
Harald Welte0597f262005-08-09 19:58:39 -070019 help
20 If this option is enabled, the kernel will include support
21 for logging packets via NFNETLINK.
22
23 This obsoletes the existing ipt_ULOG and ebg_ulog mechanisms,
24 and is also scheduled to replace the old syslog-based ipt_LOG
25 and ip6t_LOG modules.
26
Patrick McHardyab4f58c2007-12-05 01:31:37 -080027config NF_CONNTRACK
Patrick McHardyb321e142006-12-02 22:05:46 -080028 tristate "Netfilter connection tracking support"
Patrick McHardy33b8e772007-12-17 22:47:05 -080029 default m if NETFILTER_ADVANCED=n
Patrick McHardyb321e142006-12-02 22:05:46 -080030 help
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -080031 Connection tracking keeps a record of what packets have passed
32 through your machine, in order to figure out how they are related
33 into connections.
34
Patrick McHardyb321e142006-12-02 22:05:46 -080035 This is required to do Masquerading or other kinds of Network
Russ Dillb11c16b2008-07-08 02:35:27 -070036 Address Translation. It can also be used to enhance packet
37 filtering (see `Connection state match support' below).
Patrick McHardyb321e142006-12-02 22:05:46 -080038
39 To compile it as a module, choose M here. If unsure, say N.
40
Jan Engelhardtc2df73d2008-10-08 11:35:18 +020041if NF_CONNTRACK
42
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -080043config NF_CONNTRACK_MARK
44 bool 'Connection mark tracking support'
Patrick McHardy33b8e772007-12-17 22:47:05 -080045 depends on NETFILTER_ADVANCED
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -080046 help
47 This option enables support for connection marks, used by the
48 `CONNMARK' target and `connmark' match. Similar to the mark value
49 of packets, but this mark value is kept in the conntrack session
50 instead of the individual packets.
51
James Morris7c9728c2006-06-09 00:31:46 -070052config NF_CONNTRACK_SECMARK
53 bool 'Connection tracking security mark support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +020054 depends on NETWORK_SECMARK
Patrick McHardy33b8e772007-12-17 22:47:05 -080055 default m if NETFILTER_ADVANCED=n
James Morris7c9728c2006-06-09 00:31:46 -070056 help
57 This option enables security markings to be applied to
58 connections. Typically they are copied to connections from
59 packets using the CONNSECMARK target and copied back from
60 connections to packets with the same target, with the packets
61 being originally labeled via SECMARK.
62
63 If unsure, say 'N'.
64
Patrick McHardy5d0aa2c2010-02-15 18:13:33 +010065config NF_CONNTRACK_ZONES
66 bool 'Connection tracking zones'
67 depends on NETFILTER_ADVANCED
68 depends on NETFILTER_XT_TARGET_CT
69 help
70 This option enables support for connection tracking zones.
71 Normally, each connection needs to have a unique system wide
72 identity. Connection tracking zones allow to have multiple
73 connections using the same identity, as long as they are
74 contained in different zones.
75
76 If unsure, say `N'.
77
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -080078config NF_CONNTRACK_EVENTS
Patrick McHardy8ce22fc2008-01-14 23:31:36 -080079 bool "Connection tracking events"
Patrick McHardy33b8e772007-12-17 22:47:05 -080080 depends on NETFILTER_ADVANCED
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -080081 help
82 If this option is enabled, the connection tracking code will
83 provide a notifier chain that can be used by other kernel code
Thomas Vögtle50b521a2006-03-22 13:53:48 -080084 to get notified about changes in the connection tracking state.
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -080085
86 If unsure, say `N'.
87
Pablo Neira Ayusoa992ca22011-01-19 16:00:07 +010088config NF_CONNTRACK_TIMESTAMP
89 bool 'Connection tracking timestamping'
90 depends on NETFILTER_ADVANCED
91 help
92 This option enables support for connection tracking timestamping.
93 This allows you to store the flow start-time and to obtain
94 the flow-stop time (once it has been destroyed) via Connection
95 tracking events.
96
97 If unsure, say `N'.
98
Patrick McHardy2bc78042008-03-20 15:15:55 +010099config NF_CT_PROTO_DCCP
100 tristate 'DCCP protocol connection tracking support (EXPERIMENTAL)'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200101 depends on EXPERIMENTAL
Patrick McHardy2bc78042008-03-20 15:15:55 +0100102 depends on NETFILTER_ADVANCED
Patrick McHardyf3261af2008-05-08 01:16:04 -0700103 default IP_DCCP
Patrick McHardy2bc78042008-03-20 15:15:55 +0100104 help
105 With this option enabled, the layer 3 independent connection
106 tracking code will be able to do state tracking on DCCP connections.
107
108 If unsure, say 'N'.
109
Patrick McHardyf09943f2006-12-02 22:09:41 -0800110config NF_CT_PROTO_GRE
111 tristate
Patrick McHardyf09943f2006-12-02 22:09:41 -0800112
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -0800113config NF_CT_PROTO_SCTP
Patrick McHardya3c47972006-12-02 22:11:01 -0800114 tristate 'SCTP protocol connection tracking support (EXPERIMENTAL)'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200115 depends on EXPERIMENTAL
Patrick McHardy33b8e772007-12-17 22:47:05 -0800116 depends on NETFILTER_ADVANCED
Patrick McHardyf3261af2008-05-08 01:16:04 -0700117 default IP_SCTP
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -0800118 help
119 With this option enabled, the layer 3 independent connection
120 tracking code will be able to do state tracking on SCTP connections.
121
122 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500123 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -0800124
Patrick McHardy59eecdf2007-07-14 20:48:44 -0700125config NF_CT_PROTO_UDPLITE
Patrick McHardy8ce22fc2008-01-14 23:31:36 -0800126 tristate 'UDP-Lite protocol connection tracking support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800127 depends on NETFILTER_ADVANCED
Patrick McHardy59eecdf2007-07-14 20:48:44 -0700128 help
129 With this option enabled, the layer 3 independent connection
130 tracking code will be able to do state tracking on UDP-Lite
131 connections.
132
133 To compile it as a module, choose M here. If unsure, say N.
134
Patrick McHardy16958902006-12-02 22:08:26 -0800135config NF_CONNTRACK_AMANDA
Patrick McHardyc9386cf2007-01-04 12:16:06 -0800136 tristate "Amanda backup protocol support"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800137 depends on NETFILTER_ADVANCED
Patrick McHardy16958902006-12-02 22:08:26 -0800138 select TEXTSEARCH
139 select TEXTSEARCH_KMP
140 help
141 If you are running the Amanda backup package <http://www.amanda.org/>
142 on this machine or machines that will be MASQUERADED through this
143 machine, then you may want to enable this feature. This allows the
144 connection tracking and natting code to allow the sub-channels that
145 Amanda requires for communication of the backup data, messages and
146 index.
147
148 To compile it as a module, choose M here. If unsure, say N.
149
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -0800150config NF_CONNTRACK_FTP
Patrick McHardyc9386cf2007-01-04 12:16:06 -0800151 tristate "FTP protocol support"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800152 default m if NETFILTER_ADVANCED=n
Yasuyuki Kozakai9fb9cbb2005-11-09 16:38:16 -0800153 help
154 Tracking FTP connections is problematic: special helpers are
155 required for tracking them, and doing masquerading and other forms
156 of Network Address Translation on them.
157
158 This is FTP support on Layer 3 independent connection tracking.
159 Layer 3 independent connection tracking is experimental scheme
160 which generalize ip_conntrack to support other layer 3 protocols.
161
162 To compile it as a module, choose M here. If unsure, say N.
163
Patrick McHardyf587de02006-12-02 22:08:46 -0800164config NF_CONNTRACK_H323
Patrick McHardy8ce22fc2008-01-14 23:31:36 -0800165 tristate "H.323 protocol support"
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200166 depends on (IPV6 || IPV6=n)
Patrick McHardy33b8e772007-12-17 22:47:05 -0800167 depends on NETFILTER_ADVANCED
Patrick McHardyf587de02006-12-02 22:08:46 -0800168 help
169 H.323 is a VoIP signalling protocol from ITU-T. As one of the most
170 important VoIP protocols, it is widely used by voice hardware and
171 software including voice gateways, IP phones, Netmeeting, OpenPhone,
172 Gnomemeeting, etc.
173
174 With this module you can support H.323 on a connection tracking/NAT
175 firewall.
176
177 This module supports RAS, Fast Start, H.245 Tunnelling, Call
178 Forwarding, RTP/RTCP and T.120 based audio, video, fax, chat,
179 whiteboard, file transfer, etc. For more information, please
180 visit http://nath323.sourceforge.net/.
181
182 To compile it as a module, choose M here. If unsure, say N.
183
Patrick McHardy869f37d82006-12-02 22:09:06 -0800184config NF_CONNTRACK_IRC
Patrick McHardyc9386cf2007-01-04 12:16:06 -0800185 tristate "IRC protocol support"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800186 default m if NETFILTER_ADVANCED=n
Patrick McHardy869f37d82006-12-02 22:09:06 -0800187 help
188 There is a commonly-used extension to IRC called
189 Direct Client-to-Client Protocol (DCC). This enables users to send
190 files to each other, and also chat to each other without the need
191 of a server. DCC Sending is used anywhere you send files over IRC,
192 and DCC Chat is most commonly used by Eggdrop bots. If you are
193 using NAT, this extension will enable you to send files and initiate
194 chats. Note that you do NOT need this extension to get files or
195 have others initiate chats, or everything else in IRC.
196
197 To compile it as a module, choose M here. If unsure, say N.
198
Jiri Olsa93557f52011-01-18 18:12:24 +0100199config NF_CONNTRACK_BROADCAST
200 tristate
201
Patrick McHardy92703ee2006-12-02 22:09:24 -0800202config NF_CONNTRACK_NETBIOS_NS
Patrick McHardy8ce22fc2008-01-14 23:31:36 -0800203 tristate "NetBIOS name service protocol support"
Jiri Olsa93557f52011-01-18 18:12:24 +0100204 select NF_CONNTRACK_BROADCAST
Patrick McHardy92703ee2006-12-02 22:09:24 -0800205 help
206 NetBIOS name service requests are sent as broadcast messages from an
207 unprivileged port and responded to with unicast messages to the
208 same port. This make them hard to firewall properly because connection
209 tracking doesn't deal with broadcasts. This helper tracks locally
210 originating NetBIOS name service requests and the corresponding
211 responses. It relies on correct IP address configuration, specifically
212 netmask and broadcast address. When properly configured, the output
213 of "ip address show" should look similar to this:
214
215 $ ip -4 address show eth0
216 4: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast qlen 1000
217 inet 172.16.2.252/24 brd 172.16.2.255 scope global eth0
218
219 To compile it as a module, choose M here. If unsure, say N.
220
Jiri Olsa93557f52011-01-18 18:12:24 +0100221config NF_CONNTRACK_SNMP
222 tristate "SNMP service protocol support"
223 depends on NETFILTER_ADVANCED
224 select NF_CONNTRACK_BROADCAST
225 help
226 SNMP service requests are sent as broadcast messages from an
227 unprivileged port and responded to with unicast messages to the
228 same port. This make them hard to firewall properly because connection
229 tracking doesn't deal with broadcasts. This helper tracks locally
230 originating SNMP service requests and the corresponding
231 responses. It relies on correct IP address configuration, specifically
232 netmask and broadcast address.
233
234 To compile it as a module, choose M here. If unsure, say N.
235
Patrick McHardyf09943f2006-12-02 22:09:41 -0800236config NF_CONNTRACK_PPTP
Patrick McHardyc9386cf2007-01-04 12:16:06 -0800237 tristate "PPtP protocol support"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800238 depends on NETFILTER_ADVANCED
Patrick McHardyf09943f2006-12-02 22:09:41 -0800239 select NF_CT_PROTO_GRE
240 help
241 This module adds support for PPTP (Point to Point Tunnelling
242 Protocol, RFC2637) connection tracking and NAT.
243
244 If you are running PPTP sessions over a stateful firewall or NAT
245 box, you may want to enable this feature.
246
247 Please note that not all PPTP modes of operation are supported yet.
248 Specifically these limitations exist:
David Sterba3dde6ad2007-05-09 07:12:20 +0200249 - Blindly assumes that control connections are always established
Patrick McHardyf09943f2006-12-02 22:09:41 -0800250 in PNS->PAC direction. This is a violation of RFC2637.
251 - Only supports a single call within each session
252
253 To compile it as a module, choose M here. If unsure, say N.
254
Michal Schmidt6fecd192007-02-07 15:05:12 -0800255config NF_CONNTRACK_SANE
256 tristate "SANE protocol support (EXPERIMENTAL)"
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200257 depends on EXPERIMENTAL
Patrick McHardy33b8e772007-12-17 22:47:05 -0800258 depends on NETFILTER_ADVANCED
Michal Schmidt6fecd192007-02-07 15:05:12 -0800259 help
260 SANE is a protocol for remote access to scanners as implemented
261 by the 'saned' daemon. Like FTP, it uses separate control and
262 data connections.
263
264 With this module you can support SANE on a connection tracking
265 firewall.
266
267 To compile it as a module, choose M here. If unsure, say N.
268
Patrick McHardy9fafcd72006-12-02 22:09:57 -0800269config NF_CONNTRACK_SIP
Patrick McHardy8ce22fc2008-01-14 23:31:36 -0800270 tristate "SIP protocol support"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800271 default m if NETFILTER_ADVANCED=n
Patrick McHardy9fafcd72006-12-02 22:09:57 -0800272 help
273 SIP is an application-layer control protocol that can establish,
274 modify, and terminate multimedia sessions (conferences) such as
275 Internet telephony calls. With the ip_conntrack_sip and
276 the nf_nat_sip modules you can support the protocol on a connection
277 tracking/NATing firewall.
278
279 To compile it as a module, choose M here. If unsure, say N.
280
Patrick McHardya536df32006-12-02 22:10:18 -0800281config NF_CONNTRACK_TFTP
Patrick McHardyc9386cf2007-01-04 12:16:06 -0800282 tristate "TFTP protocol support"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800283 depends on NETFILTER_ADVANCED
Patrick McHardya536df32006-12-02 22:10:18 -0800284 help
285 TFTP connection tracking helper, this is required depending
286 on how restrictive your ruleset is.
287 If you are using a tftp client behind -j SNAT or -j MASQUERADING
288 you will need this.
289
290 To compile it as a module, choose M here. If unsure, say N.
291
Pablo Neira Ayusoc1d10ad2006-01-05 12:19:05 -0800292config NF_CT_NETLINK
Patrick McHardy8ce22fc2008-01-14 23:31:36 -0800293 tristate 'Connection tracking netlink interface'
Patrick McHardy2eeeba32007-12-05 01:31:52 -0800294 select NETFILTER_NETLINK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800295 default m if NETFILTER_ADVANCED=n
Pablo Neira Ayusoc1d10ad2006-01-05 12:19:05 -0800296 help
297 This option enables support for a netlink-based userspace interface
298
Laszlo Attila Toth4b070662009-04-24 16:55:25 +0200299endif # NF_CONNTRACK
300
KOVACS Krisztian9ad2d742008-10-08 11:35:12 +0200301# transparent proxy support
302config NETFILTER_TPROXY
303 tristate "Transparent proxying support (EXPERIMENTAL)"
304 depends on EXPERIMENTAL
305 depends on IP_NF_MANGLE
306 depends on NETFILTER_ADVANCED
307 help
308 This option enables transparent proxying support, that is,
309 support for handling non-locally bound IPv4 TCP and UDP sockets.
310 For it to work you will have to configure certain iptables rules
311 and use policy routing. For more information on how to set it up
312 see Documentation/networking/tproxy.txt.
313
314 To compile it as a module, choose M here. If unsure, say N.
315
Harald Welte2e4e6a12006-01-12 13:30:04 -0800316config NETFILTER_XTABLES
317 tristate "Netfilter Xtables support (required for ip_tables)"
Patrick McHardy33b8e772007-12-17 22:47:05 -0800318 default m if NETFILTER_ADVANCED=n
Harald Welte2e4e6a12006-01-12 13:30:04 -0800319 help
320 This is required if you intend to use any of ip_tables,
321 ip6_tables or arp_tables.
322
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200323if NETFILTER_XTABLES
324
Jan Engelhardt28b94982009-02-28 03:23:57 +0100325comment "Xtables combined modules"
326
327config NETFILTER_XT_MARK
328 tristate 'nfmark target and match support'
329 default m if NETFILTER_ADVANCED=n
330 ---help---
331 This option adds the "MARK" target and "mark" match.
332
333 Netfilter mark matching allows you to match packets based on the
334 "nfmark" value in the packet.
335 The target allows you to create rules in the "mangle" table which alter
336 the netfilter mark (nfmark) field associated with the packet.
337
338 Prior to routing, the nfmark can influence the routing method (see
339 "Use netfilter MARK value as routing key") and can also be used by
340 other subsystems to change their behavior.
341
Jan Engelhardtb8f00ba2010-02-26 14:20:32 +0100342config NETFILTER_XT_CONNMARK
343 tristate 'ctmark target and match support'
344 depends on NF_CONNTRACK
345 depends on NETFILTER_ADVANCED
346 select NF_CONNTRACK_MARK
347 ---help---
348 This option adds the "CONNMARK" target and "connmark" match.
349
350 Netfilter allows you to store a mark value per connection (a.k.a.
351 ctmark), similarly to the packet mark (nfmark). Using this
352 target and match, you can set and match on this mark.
353
Jozsef Kadlecsikd9567982011-02-01 15:56:00 +0100354config NETFILTER_XT_SET
355 tristate 'set target and match support'
356 depends on IP_SET
357 depends on NETFILTER_ADVANCED
358 help
359 This option adds the "SET" target and "set" match.
360
361 Using this target and match, you can add/delete and match
362 elements in the sets created by ipset(8).
363
364 To compile it as a module, choose M here. If unsure, say N.
365
Harald Welte2e4e6a12006-01-12 13:30:04 -0800366# alphabetically ordered list of targets
367
Jan Engelhardt44c58732010-02-26 14:14:22 +0100368comment "Xtables targets"
369
Thomas Graf43f393c2011-01-16 18:10:28 +0100370config NETFILTER_XT_TARGET_AUDIT
371 tristate "AUDIT target support"
372 depends on AUDIT
373 depends on NETFILTER_ADVANCED
374 ---help---
375 This option adds a 'AUDIT' target, which can be used to create
376 audit records for packets dropped/accepted.
377
378 To compileit as a module, choose M here. If unsure, say N.
379
Michael S. Tsirkinedf0e1f2010-07-15 17:20:46 +0200380config NETFILTER_XT_TARGET_CHECKSUM
381 tristate "CHECKSUM target support"
382 depends on IP_NF_MANGLE || IP6_NF_MANGLE
383 depends on NETFILTER_ADVANCED
384 ---help---
385 This option adds a `CHECKSUM' target, which can be used in the iptables mangle
386 table.
387
388 You can use this target to compute and fill in the checksum in
389 a packet that lacks a checksum. This is particularly useful,
390 if you need to work around old applications such as dhcp clients,
391 that do not work well with checksum offloads, but don't want to disable
392 checksum offload in your device.
393
394 To compile it as a module, choose M here. If unsure, say N.
395
Harald Welte2e4e6a12006-01-12 13:30:04 -0800396config NETFILTER_XT_TARGET_CLASSIFY
397 tristate '"CLASSIFY" target support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800398 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800399 help
400 This option adds a `CLASSIFY' target, which enables the user to set
401 the priority of a packet. Some qdiscs can use this value for
402 classification, among these are:
403
404 atm, cbq, dsmark, pfifo_fast, htb, prio
405
406 To compile it as a module, choose M here. If unsure, say N.
407
408config NETFILTER_XT_TARGET_CONNMARK
409 tristate '"CONNMARK" target support'
Patrick McHardy587aa642007-03-14 16:37:25 -0700410 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800411 depends on NETFILTER_ADVANCED
Jan Engelhardtb8f00ba2010-02-26 14:20:32 +0100412 select NETFILTER_XT_CONNMARK
413 ---help---
414 This is a backwards-compat option for the user's convenience
415 (e.g. when running oldconfig). It selects
416 CONFIG_NETFILTER_XT_CONNMARK (combined connmark/CONNMARK module).
Harald Welte2e4e6a12006-01-12 13:30:04 -0800417
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200418config NETFILTER_XT_TARGET_CONNSECMARK
419 tristate '"CONNSECMARK" target support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200420 depends on NF_CONNTRACK && NF_CONNTRACK_SECMARK
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200421 default m if NETFILTER_ADVANCED=n
422 help
423 The CONNSECMARK target copies security markings from packets
424 to connections, and restores security markings from connections
425 to packets (if the packets are not already marked). This would
426 normally be used in conjunction with the SECMARK target.
427
428 To compile it as a module, choose M here. If unsure, say N.
429
Patrick McHardy84f3bb92010-02-03 17:17:06 +0100430config NETFILTER_XT_TARGET_CT
431 tristate '"CT" target support'
432 depends on NF_CONNTRACK
433 depends on IP_NF_RAW || IP6_NF_RAW
434 depends on NETFILTER_ADVANCED
435 help
436 This options adds a `CT' target, which allows to specify initial
437 connection tracking parameters like events to be delivered and
438 the helper to be used.
439
440 To compile it as a module, choose M here. If unsure, say N.
441
Yasuyuki Kozakaia4687012006-08-22 00:30:26 -0700442config NETFILTER_XT_TARGET_DSCP
Jan Engelhardtc9fd4962007-12-04 23:38:13 -0800443 tristate '"DSCP" and "TOS" target support'
Yasuyuki Kozakaia4687012006-08-22 00:30:26 -0700444 depends on IP_NF_MANGLE || IP6_NF_MANGLE
Patrick McHardy33b8e772007-12-17 22:47:05 -0800445 depends on NETFILTER_ADVANCED
Yasuyuki Kozakaia4687012006-08-22 00:30:26 -0700446 help
447 This option adds a `DSCP' target, which allows you to manipulate
448 the IPv4/IPv6 header DSCP field (differentiated services codepoint).
449
450 The DSCP field can have any value between 0x0 and 0x3f inclusive.
451
Jan Engelhardtc9fd4962007-12-04 23:38:13 -0800452 It also adds the "TOS" target, which allows you to create rules in
453 the "mangle" table which alter the Type Of Service field of an IPv4
Jan Engelhardt5c350e52007-12-04 23:39:09 -0800454 or the Priority field of an IPv6 packet, prior to routing.
Jan Engelhardtc9fd4962007-12-04 23:38:13 -0800455
Yasuyuki Kozakaia4687012006-08-22 00:30:26 -0700456 To compile it as a module, choose M here. If unsure, say N.
457
Jan Engelhardt563d36e2009-02-18 18:38:40 +0100458config NETFILTER_XT_TARGET_HL
459 tristate '"HL" hoplimit target support'
460 depends on IP_NF_MANGLE || IP6_NF_MANGLE
461 depends on NETFILTER_ADVANCED
462 ---help---
463 This option adds the "HL" (for IPv6) and "TTL" (for IPv4)
464 targets, which enable the user to change the
465 hoplimit/time-to-live value of the IP header.
466
467 While it is safe to decrement the hoplimit/TTL value, the
468 modules also allow to increment and set the hoplimit value of
469 the header to arbitrary values. This is EXTREMELY DANGEROUS
470 since you can easily create immortal packets that loop
471 forever on the network.
472
Luciano Coelho0902b462010-06-15 15:04:00 +0200473config NETFILTER_XT_TARGET_IDLETIMER
474 tristate "IDLETIMER target support"
475 depends on NETFILTER_ADVANCED
476 help
477
478 This option adds the `IDLETIMER' target. Each matching packet
479 resets the timer associated with label specified when the rule is
480 added. When the timer expires, it triggers a sysfs notification.
481 The remaining time for expiration can be read via sysfs.
482
483 To compile it as a module, choose M here. If unsure, say N.
484
Adam Nielsen268cb382009-02-20 10:55:14 +0100485config NETFILTER_XT_TARGET_LED
486 tristate '"LED" target support'
Alex Riesen3ae16f12009-04-06 17:09:43 +0200487 depends on LEDS_CLASS && LEDS_TRIGGERS
Adam Nielsen268cb382009-02-20 10:55:14 +0100488 depends on NETFILTER_ADVANCED
489 help
490 This option adds a `LED' target, which allows you to blink LEDs in
491 response to particular packets passing through your machine.
492
493 This can be used to turn a spare LED into a network activity LED,
494 which only flashes in response to FTP transfers, for example. Or
495 you could have an LED which lights up for a minute or two every time
496 somebody connects to your machine via SSH.
497
498 You will need support for the "led" class to make this work.
499
500 To create an LED trigger for incoming SSH traffic:
501 iptables -A INPUT -p tcp --dport 22 -j LED --led-trigger-id ssh --led-delay 1000
502
503 Then attach the new trigger to an LED on your system:
504 echo netfilter-ssh > /sys/class/leds/<ledname>/trigger
505
506 For more information on the LEDs available on your system, see
Paul Bolle395cf962011-08-15 02:02:26 +0200507 Documentation/leds/leds-class.txt
Adam Nielsen268cb382009-02-20 10:55:14 +0100508
Harald Welte2e4e6a12006-01-12 13:30:04 -0800509config NETFILTER_XT_TARGET_MARK
510 tristate '"MARK" target support'
Jan Engelhardt28b94982009-02-28 03:23:57 +0100511 depends on NETFILTER_ADVANCED
512 select NETFILTER_XT_MARK
513 ---help---
514 This is a backwards-compat option for the user's convenience
515 (e.g. when running oldconfig). It selects
516 CONFIG_NETFILTER_XT_MARK (combined mark/MARK module).
Harald Welte2e4e6a12006-01-12 13:30:04 -0800517
Patrick McHardybaf7b1e2006-11-29 02:35:38 +0100518config NETFILTER_XT_TARGET_NFLOG
519 tristate '"NFLOG" target support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800520 default m if NETFILTER_ADVANCED=n
Eric Leblond293a4f22008-12-10 17:24:33 -0800521 select NETFILTER_NETLINK_LOG
Patrick McHardybaf7b1e2006-11-29 02:35:38 +0100522 help
523 This option enables the NFLOG target, which allows to LOG
Eric Leblond293a4f22008-12-10 17:24:33 -0800524 messages through nfnetlink_log.
Patrick McHardybaf7b1e2006-11-29 02:35:38 +0100525
526 To compile it as a module, choose M here. If unsure, say N.
527
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200528config NETFILTER_XT_TARGET_NFQUEUE
529 tristate '"NFQUEUE" target Support'
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200530 depends on NETFILTER_ADVANCED
Florian Westphal5f2cafe2011-01-18 15:18:08 +0100531 select NETFILTER_NETLINK_QUEUE
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200532 help
533 This target replaced the old obsolete QUEUE target.
534
535 As opposed to QUEUE, it supports 65535 different queues,
536 not just one.
537
538 To compile it as a module, choose M here. If unsure, say N.
539
Harald Welte2e4e6a12006-01-12 13:30:04 -0800540config NETFILTER_XT_TARGET_NOTRACK
541 tristate '"NOTRACK" target support'
Harald Welte2e4e6a12006-01-12 13:30:04 -0800542 depends on IP_NF_RAW || IP6_NF_RAW
Patrick McHardy587aa642007-03-14 16:37:25 -0700543 depends on NF_CONNTRACK
Harald Welte2e4e6a12006-01-12 13:30:04 -0800544 help
545 The NOTRACK target allows a select rule to specify
546 which packets *not* to enter the conntrack/NAT
547 subsystem with all the consequences (no ICMP error tracking,
548 no protocol helpers for the selected packets).
Patrick McHardy33b8e772007-12-17 22:47:05 -0800549
Harald Welte2e4e6a12006-01-12 13:30:04 -0800550 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500551 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Harald Welte2e4e6a12006-01-12 13:30:04 -0800552
Patrick McHardy58590342007-12-04 23:40:05 -0800553config NETFILTER_XT_TARGET_RATEEST
554 tristate '"RATEEST" target support'
Patrick McHardyb26e76b2008-01-14 23:30:56 -0800555 depends on NETFILTER_ADVANCED
Patrick McHardy58590342007-12-04 23:40:05 -0800556 help
557 This option adds a `RATEEST' target, which allows to measure
558 rates similar to TC estimators. The `rateest' match can be
559 used to match on the measured rates.
560
561 To compile it as a module, choose M here. If unsure, say N.
562
Jan Engelhardte281b192010-04-19 14:17:47 +0200563config NETFILTER_XT_TARGET_TEE
Arnd Hannemannfe6fb552010-06-22 08:22:21 +0200564 tristate '"TEE" - packet cloning to alternate destination'
Jan Engelhardte281b192010-04-19 14:17:47 +0200565 depends on NETFILTER_ADVANCED
Jan Engelhardt9b7ce2b2010-05-12 10:11:35 +0000566 depends on (IPV6 || IPV6=n)
Randy Dunlap83827f62010-05-14 13:52:30 -0700567 depends on !NF_CONNTRACK || NF_CONNTRACK
Jan Engelhardte281b192010-04-19 14:17:47 +0200568 ---help---
569 This option adds a "TEE" target with which a packet can be cloned and
570 this clone be rerouted to another nexthop.
571
KOVACS Krisztiane8439272008-10-08 11:35:12 +0200572config NETFILTER_XT_TARGET_TPROXY
573 tristate '"TPROXY" target support (EXPERIMENTAL)'
574 depends on EXPERIMENTAL
575 depends on NETFILTER_TPROXY
576 depends on NETFILTER_XTABLES
577 depends on NETFILTER_ADVANCED
578 select NF_DEFRAG_IPV4
KOVACS Krisztianf6318e52010-10-24 23:38:32 +0000579 select NF_DEFRAG_IPV6 if IP6_NF_IPTABLES
KOVACS Krisztiane8439272008-10-08 11:35:12 +0200580 help
581 This option adds a `TPROXY' target, which is somewhat similar to
582 REDIRECT. It can only be used in the mangle table and is useful
583 to redirect traffic to a transparent proxy. It does _not_ depend
584 on Netfilter connection tracking and NAT, unlike REDIRECT.
585
586 To compile it as a module, choose M here. If unsure, say N.
587
Jozsef Kadlecsikba9dda32007-07-07 22:21:23 -0700588config NETFILTER_XT_TARGET_TRACE
589 tristate '"TRACE" target support'
Jozsef Kadlecsikba9dda32007-07-07 22:21:23 -0700590 depends on IP_NF_RAW || IP6_NF_RAW
Patrick McHardy33b8e772007-12-17 22:47:05 -0800591 depends on NETFILTER_ADVANCED
Jozsef Kadlecsikba9dda32007-07-07 22:21:23 -0700592 help
593 The TRACE target allows you to mark packets so that the kernel
594 will log every rule which match the packets as those traverse
595 the tables, chains, rules.
596
597 If you want to compile it as a module, say M here and read
Dirk Hohndele4031492007-10-30 13:37:19 -0700598 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Jozsef Kadlecsikba9dda32007-07-07 22:21:23 -0700599
James Morris5e6874c2006-06-09 00:30:57 -0700600config NETFILTER_XT_TARGET_SECMARK
601 tristate '"SECMARK" target support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200602 depends on NETWORK_SECMARK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800603 default m if NETFILTER_ADVANCED=n
James Morris5e6874c2006-06-09 00:30:57 -0700604 help
605 The SECMARK target allows security marking of network
606 packets, for use with security subsystems.
607
608 To compile it as a module, choose M here. If unsure, say N.
609
Patrick McHardycdd289a2007-02-07 15:09:46 -0800610config NETFILTER_XT_TARGET_TCPMSS
611 tristate '"TCPMSS" target support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200612 depends on (IPV6 || IPV6=n)
Patrick McHardy33b8e772007-12-17 22:47:05 -0800613 default m if NETFILTER_ADVANCED=n
Patrick McHardycdd289a2007-02-07 15:09:46 -0800614 ---help---
615 This option adds a `TCPMSS' target, which allows you to alter the
616 MSS value of TCP SYN packets, to control the maximum size for that
617 connection (usually limiting it to your outgoing interface's MTU
618 minus 40).
619
620 This is used to overcome criminally braindead ISPs or servers which
621 block ICMP Fragmentation Needed packets. The symptoms of this
622 problem are that everything works fine from your Linux
623 firewall/router, but machines behind it can never exchange large
624 packets:
625 1) Web browsers connect, then hang with no data received.
626 2) Small mail works fine, but large emails hang.
627 3) ssh works fine, but scp hangs after initial handshaking.
628
629 Workaround: activate this option and add a rule to your firewall
630 configuration like:
631
632 iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \
633 -j TCPMSS --clamp-mss-to-pmtu
634
635 To compile it as a module, choose M here. If unsure, say N.
636
Sven Schnelle338e8a72007-12-04 23:21:50 -0800637config NETFILTER_XT_TARGET_TCPOPTSTRIP
638 tristate '"TCPOPTSTRIP" target support (EXPERIMENTAL)'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200639 depends on EXPERIMENTAL
Sven Schnelle338e8a72007-12-04 23:21:50 -0800640 depends on IP_NF_MANGLE || IP6_NF_MANGLE
Patrick McHardy33b8e772007-12-17 22:47:05 -0800641 depends on NETFILTER_ADVANCED
Sven Schnelle338e8a72007-12-04 23:21:50 -0800642 help
643 This option adds a "TCPOPTSTRIP" target, which allows you to strip
644 TCP options from TCP packets.
645
Jan Engelhardt44c58732010-02-26 14:14:22 +0100646# alphabetically ordered list of matches
647
648comment "Xtables matches"
649
Florian Westphalde81bbe2011-03-15 20:16:20 +0100650config NETFILTER_XT_MATCH_ADDRTYPE
651 tristate '"addrtype" address type match support'
652 depends on NETFILTER_ADVANCED
653 ---help---
654 This option allows you to match what routing thinks of an address,
655 eg. UNICAST, LOCAL, BROADCAST, ...
656
657 If you want to compile it as a module, say M here and read
658 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
659
Pablo Neira Ayuso0269ea42009-03-16 17:10:36 +0100660config NETFILTER_XT_MATCH_CLUSTER
661 tristate '"cluster" match support'
662 depends on NF_CONNTRACK
663 depends on NETFILTER_ADVANCED
664 ---help---
665 This option allows you to build work-load-sharing clusters of
666 network servers/stateful firewalls without having a dedicated
667 load-balancing router/server/switch. Basically, this match returns
668 true when the packet must be handled by this cluster node. Thus,
669 all nodes see all packets and this match decides which node handles
670 what packets. The work-load sharing algorithm is based on source
671 address hashing.
672
673 If you say Y or M here, try `iptables -m cluster --help` for
674 more information.
675
Harald Welte2e4e6a12006-01-12 13:30:04 -0800676config NETFILTER_XT_MATCH_COMMENT
677 tristate '"comment" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800678 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800679 help
680 This option adds a `comment' dummy-match, which allows you to put
681 comments in your iptables ruleset.
682
683 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500684 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Harald Welte2e4e6a12006-01-12 13:30:04 -0800685
686config NETFILTER_XT_MATCH_CONNBYTES
687 tristate '"connbytes" per-connection counter match support'
Patrick McHardy587aa642007-03-14 16:37:25 -0700688 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800689 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800690 help
691 This option adds a `connbytes' match, which allows you to match the
692 number of bytes and/or packets for each direction within a connection.
693
694 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500695 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Harald Welte2e4e6a12006-01-12 13:30:04 -0800696
Jan Engelhardt370786f2007-07-14 20:47:26 -0700697config NETFILTER_XT_MATCH_CONNLIMIT
698 tristate '"connlimit" match support"'
Cornelia Huck3fd8f9e2007-07-18 02:38:32 -0700699 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800700 depends on NETFILTER_ADVANCED
Jan Engelhardt370786f2007-07-14 20:47:26 -0700701 ---help---
702 This match allows you to match against the number of parallel
703 connections to a server per client IP address (or address block).
704
Harald Welte2e4e6a12006-01-12 13:30:04 -0800705config NETFILTER_XT_MATCH_CONNMARK
706 tristate '"connmark" connection mark match support'
Patrick McHardy587aa642007-03-14 16:37:25 -0700707 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800708 depends on NETFILTER_ADVANCED
Jan Engelhardtb8f00ba2010-02-26 14:20:32 +0100709 select NETFILTER_XT_CONNMARK
710 ---help---
711 This is a backwards-compat option for the user's convenience
712 (e.g. when running oldconfig). It selects
713 CONFIG_NETFILTER_XT_CONNMARK (combined connmark/CONNMARK module).
Harald Welte2e4e6a12006-01-12 13:30:04 -0800714
715config NETFILTER_XT_MATCH_CONNTRACK
716 tristate '"conntrack" connection tracking match support'
Patrick McHardy587aa642007-03-14 16:37:25 -0700717 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800718 default m if NETFILTER_ADVANCED=n
Harald Welte2e4e6a12006-01-12 13:30:04 -0800719 help
720 This is a general conntrack match module, a superset of the state match.
721
722 It allows matching on additional conntrack information, which is
723 useful in complex configurations, such as NAT gateways with multiple
724 internet links or tunnels.
725
726 To compile it as a module, choose M here. If unsure, say N.
727
Eric Dumazete8648a12010-07-23 12:59:36 +0200728config NETFILTER_XT_MATCH_CPU
729 tristate '"cpu" match support'
730 depends on NETFILTER_ADVANCED
731 help
732 CPU matching allows you to match packets based on the CPU
733 currently handling the packet.
734
735 To compile it as a module, choose M here. If unsure, say N.
736
Harald Welte2e4e6a12006-01-12 13:30:04 -0800737config NETFILTER_XT_MATCH_DCCP
Jan Engelhardt4c377992007-12-04 23:31:59 -0800738 tristate '"dccp" protocol match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800739 depends on NETFILTER_ADVANCED
Patrick McHardyf3261af2008-05-08 01:16:04 -0700740 default IP_DCCP
Harald Welte2e4e6a12006-01-12 13:30:04 -0800741 help
742 With this option enabled, you will be able to use the iptables
743 `dccp' match in order to match on DCCP source/destination ports
744 and DCCP flags.
745
746 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500747 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Harald Welte2e4e6a12006-01-12 13:30:04 -0800748
Patrick McHardy92917472011-02-03 00:05:43 +0100749config NETFILTER_XT_MATCH_DEVGROUP
750 tristate '"devgroup" match support'
751 depends on NETFILTER_ADVANCED
752 help
753 This options adds a `devgroup' match, which allows to match on the
754 device group a network device is assigned to.
755
756 To compile it as a module, choose M here. If unsure, say N.
757
Yasuyuki Kozakai9ba16272006-08-22 00:29:37 -0700758config NETFILTER_XT_MATCH_DSCP
Jan Engelhardtc3b33e62007-12-04 23:37:54 -0800759 tristate '"dscp" and "tos" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800760 depends on NETFILTER_ADVANCED
Yasuyuki Kozakai9ba16272006-08-22 00:29:37 -0700761 help
762 This option adds a `DSCP' match, which allows you to match against
763 the IPv4/IPv6 header DSCP field (differentiated services codepoint).
764
765 The DSCP field can have any value between 0x0 and 0x3f inclusive.
766
Jan Engelhardtc3b33e62007-12-04 23:37:54 -0800767 It will also add a "tos" match, which allows you to match packets
768 based on the Type Of Service fields of the IPv4 packet (which share
769 the same bits as DSCP).
770
Yasuyuki Kozakai9ba16272006-08-22 00:29:37 -0700771 To compile it as a module, choose M here. If unsure, say N.
772
Yasuyuki Kozakaidc5ab2f2006-04-01 02:22:30 -0800773config NETFILTER_XT_MATCH_ESP
Jan Engelhardt4c377992007-12-04 23:31:59 -0800774 tristate '"esp" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800775 depends on NETFILTER_ADVANCED
Yasuyuki Kozakaidc5ab2f2006-04-01 02:22:30 -0800776 help
777 This match extension allows you to match a range of SPIs
778 inside ESP header of IPSec packets.
779
780 To compile it as a module, choose M here. If unsure, say N.
781
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200782config NETFILTER_XT_MATCH_HASHLIMIT
783 tristate '"hashlimit" match support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200784 depends on (IP6_NF_IPTABLES || IP6_NF_IPTABLES=n)
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200785 depends on NETFILTER_ADVANCED
786 help
787 This option adds a `hashlimit' match.
788
789 As opposed to `limit', this match dynamically creates a hash table
790 of limit buckets, based on your selection of source/destination
791 addresses and/or ports.
792
793 It enables you to express policies like `10kpps for any given
794 destination address' or `500pps from any given source address'
795 with a single rule.
796
Harald Welte2e4e6a12006-01-12 13:30:04 -0800797config NETFILTER_XT_MATCH_HELPER
798 tristate '"helper" match support'
Patrick McHardy587aa642007-03-14 16:37:25 -0700799 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -0800800 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800801 help
802 Helper matching allows you to match packets in dynamic connections
803 tracked by a conntrack-helper, ie. ip_conntrack_ftp
804
805 To compile it as a module, choose M here. If unsure, say Y.
806
Jan Engelhardtcfac5ef2009-02-18 18:39:31 +0100807config NETFILTER_XT_MATCH_HL
808 tristate '"hl" hoplimit/TTL match support'
809 depends on NETFILTER_ADVANCED
810 ---help---
811 HL matching allows you to match packets based on the hoplimit
812 in the IPv6 header, or the time-to-live field in the IPv4
813 header of the packet.
814
Jan Engelhardtf72e25a2008-01-14 23:42:47 -0800815config NETFILTER_XT_MATCH_IPRANGE
816 tristate '"iprange" address range match support'
Jan Engelhardtf72e25a2008-01-14 23:42:47 -0800817 depends on NETFILTER_ADVANCED
818 ---help---
819 This option adds a "iprange" match, which allows you to match based on
820 an IP address range. (Normal iptables only matches on single addresses
821 with an optional mask.)
822
823 If unsure, say M.
824
Hannes Eder9c3e1c32010-07-23 12:42:58 +0200825config NETFILTER_XT_MATCH_IPVS
826 tristate '"ipvs" match support'
827 depends on IP_VS
828 depends on NETFILTER_ADVANCED
829 depends on NF_CONNTRACK
830 help
831 This option allows you to match against IPVS properties of a packet.
832
833 If unsure, say N.
834
Harald Welte2e4e6a12006-01-12 13:30:04 -0800835config NETFILTER_XT_MATCH_LENGTH
836 tristate '"length" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800837 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800838 help
839 This option allows you to match the length of a packet against a
840 specific value or range of values.
841
842 To compile it as a module, choose M here. If unsure, say N.
843
844config NETFILTER_XT_MATCH_LIMIT
845 tristate '"limit" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800846 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800847 help
848 limit matching allows you to control the rate at which a rule can be
849 matched: mainly useful in combination with the LOG target ("LOG
850 target support", below) and to avoid some Denial of Service attacks.
851
852 To compile it as a module, choose M here. If unsure, say N.
853
854config NETFILTER_XT_MATCH_MAC
855 tristate '"mac" address match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800856 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800857 help
858 MAC matching allows you to match packets based on the source
859 Ethernet address of the packet.
860
861 To compile it as a module, choose M here. If unsure, say N.
862
863config NETFILTER_XT_MATCH_MARK
864 tristate '"mark" match support'
Jan Engelhardt28b94982009-02-28 03:23:57 +0100865 depends on NETFILTER_ADVANCED
866 select NETFILTER_XT_MARK
867 ---help---
868 This is a backwards-compat option for the user's convenience
869 (e.g. when running oldconfig). It selects
870 CONFIG_NETFILTER_XT_MARK (combined mark/MARK module).
Harald Welte2e4e6a12006-01-12 13:30:04 -0800871
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200872config NETFILTER_XT_MATCH_MULTIPORT
873 tristate '"multiport" Multiple port match support'
Jan Engelhardtaba0d342008-10-08 11:35:17 +0200874 depends on NETFILTER_ADVANCED
875 help
876 Multiport matching allows you to match TCP or UDP packets based on
877 a series of source or destination ports: normally a rule can only
878 match a single range of ports.
879
880 To compile it as a module, choose M here. If unsure, say N.
881
Jan Engelhardt115bc8f2010-03-16 20:06:55 +0100882config NETFILTER_XT_MATCH_OSF
883 tristate '"osf" Passive OS fingerprint match'
884 depends on NETFILTER_ADVANCED && NETFILTER_NETLINK
885 help
886 This option selects the Passive OS Fingerprinting match module
887 that allows to passively match the remote operating system by
888 analyzing incoming TCP SYN packets.
889
890 Rules and loading software can be downloaded from
891 http://www.ioremap.net/projects/osf
892
893 To compile it as a module, choose M here. If unsure, say N.
894
Jan Engelhardt0265ab42007-12-04 23:27:38 -0800895config NETFILTER_XT_MATCH_OWNER
896 tristate '"owner" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800897 depends on NETFILTER_ADVANCED
Jan Engelhardt0265ab42007-12-04 23:27:38 -0800898 ---help---
899 Socket owner matching allows you to match locally-generated packets
900 based on who created the socket: the user or group. It is also
901 possible to check whether a socket actually exists.
902
Patrick McHardyc4b88512006-03-20 18:03:40 -0800903config NETFILTER_XT_MATCH_POLICY
904 tristate 'IPsec "policy" match support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200905 depends on XFRM
Patrick McHardy33b8e772007-12-17 22:47:05 -0800906 default m if NETFILTER_ADVANCED=n
Patrick McHardyc4b88512006-03-20 18:03:40 -0800907 help
908 Policy matching allows you to match packets based on the
909 IPsec policy that was used during decapsulation/will
910 be used during encapsulation.
911
912 To compile it as a module, choose M here. If unsure, say N.
913
Harald Welte2e4e6a12006-01-12 13:30:04 -0800914config NETFILTER_XT_MATCH_PHYSDEV
915 tristate '"physdev" match support'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200916 depends on BRIDGE && BRIDGE_NETFILTER
Patrick McHardy33b8e772007-12-17 22:47:05 -0800917 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800918 help
919 Physdev packet matching matches against the physical bridge ports
920 the IP packet arrived on or will leave by.
921
922 To compile it as a module, choose M here. If unsure, say N.
923
924config NETFILTER_XT_MATCH_PKTTYPE
925 tristate '"pkttype" packet type match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800926 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -0800927 help
928 Packet type matching allows you to match a packet by
929 its "class", eg. BROADCAST, MULTICAST, ...
930
931 Typical usage:
932 iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG
933
934 To compile it as a module, choose M here. If unsure, say N.
935
Patrick McHardy62b77432006-05-29 18:20:32 -0700936config NETFILTER_XT_MATCH_QUOTA
937 tristate '"quota" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800938 depends on NETFILTER_ADVANCED
Patrick McHardy62b77432006-05-29 18:20:32 -0700939 help
940 This option adds a `quota' match, which allows to match on a
941 byte counter.
942
943 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500944 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Patrick McHardy62b77432006-05-29 18:20:32 -0700945
Patrick McHardy50c164a2007-12-04 13:02:19 +0100946config NETFILTER_XT_MATCH_RATEEST
947 tristate '"rateest" match support'
Patrick McHardyb26e76b2008-01-14 23:30:56 -0800948 depends on NETFILTER_ADVANCED
Patrick McHardy50c164a2007-12-04 13:02:19 +0100949 select NETFILTER_XT_TARGET_RATEEST
950 help
951 This option adds a `rateest' match, which allows to match on the
952 rate estimated by the RATEEST target.
953
954 To compile it as a module, choose M here. If unsure, say N.
955
Harald Welte2e4e6a12006-01-12 13:30:04 -0800956config NETFILTER_XT_MATCH_REALM
957 tristate '"realm" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -0800958 depends on NETFILTER_ADVANCED
Patrick McHardyc7066f72011-01-14 13:36:42 +0100959 select IP_ROUTE_CLASSID
Harald Welte2e4e6a12006-01-12 13:30:04 -0800960 help
961 This option adds a `realm' match, which allows you to use the realm
962 key from the routing subsystem inside iptables.
Patrick McHardy33b8e772007-12-17 22:47:05 -0800963
Harald Welte2e4e6a12006-01-12 13:30:04 -0800964 This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option
965 in tc world.
Patrick McHardy33b8e772007-12-17 22:47:05 -0800966
Harald Welte2e4e6a12006-01-12 13:30:04 -0800967 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500968 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Harald Welte2e4e6a12006-01-12 13:30:04 -0800969
Jan Engelhardte948b202008-10-08 11:35:00 +0200970config NETFILTER_XT_MATCH_RECENT
971 tristate '"recent" match support'
Jan Engelhardte948b202008-10-08 11:35:00 +0200972 depends on NETFILTER_ADVANCED
973 ---help---
974 This match is used for creating one or many lists of recently
975 used addresses and then matching against that/those list(s).
976
977 Short options are available by using 'iptables -m recent -h'
978 Official Website: <http://snowman.net/projects/ipt_recent/>
979
Harald Welte2e4e6a12006-01-12 13:30:04 -0800980config NETFILTER_XT_MATCH_SCTP
Patrick McHardyd5af981e2006-07-24 22:55:29 -0700981 tristate '"sctp" protocol match support (EXPERIMENTAL)'
Jan Engelhardtc2df73d2008-10-08 11:35:18 +0200982 depends on EXPERIMENTAL
Patrick McHardy33b8e772007-12-17 22:47:05 -0800983 depends on NETFILTER_ADVANCED
Patrick McHardyf3261af2008-05-08 01:16:04 -0700984 default IP_SCTP
Harald Welte2e4e6a12006-01-12 13:30:04 -0800985 help
986 With this option enabled, you will be able to use the
987 `sctp' match in order to match on SCTP source/destination ports
988 and SCTP chunk types.
989
990 If you want to compile it as a module, say M here and read
Alexander E. Patrakov39f5fb32007-03-16 18:28:43 +0500991 <file:Documentation/kbuild/modules.txt>. If unsure, say `N'.
Harald Welte2e4e6a12006-01-12 13:30:04 -0800992
KOVACS Krisztian136cdc72008-10-08 11:35:12 +0200993config NETFILTER_XT_MATCH_SOCKET
994 tristate '"socket" match support (EXPERIMENTAL)'
995 depends on EXPERIMENTAL
996 depends on NETFILTER_TPROXY
997 depends on NETFILTER_XTABLES
998 depends on NETFILTER_ADVANCED
Laszlo Attila Tothacda0742009-05-01 15:23:10 -0700999 depends on !NF_CONNTRACK || NF_CONNTRACK
KOVACS Krisztian136cdc72008-10-08 11:35:12 +02001000 select NF_DEFRAG_IPV4
KOVACS Krisztianf6318e52010-10-24 23:38:32 +00001001 select NF_DEFRAG_IPV6 if IP6_NF_IPTABLES
KOVACS Krisztian136cdc72008-10-08 11:35:12 +02001002 help
1003 This option adds a `socket' match, which can be used to match
1004 packets for which a TCP or UDP socket lookup finds a valid socket.
1005 It can be used in combination with the MARK target and policy
1006 routing to implement full featured non-locally bound sockets.
1007
1008 To compile it as a module, choose M here. If unsure, say N.
1009
Harald Welte2e4e6a12006-01-12 13:30:04 -08001010config NETFILTER_XT_MATCH_STATE
1011 tristate '"state" match support'
Patrick McHardy587aa642007-03-14 16:37:25 -07001012 depends on NF_CONNTRACK
Patrick McHardy33b8e772007-12-17 22:47:05 -08001013 default m if NETFILTER_ADVANCED=n
Harald Welte2e4e6a12006-01-12 13:30:04 -08001014 help
1015 Connection state matching allows you to match packets based on their
1016 relationship to a tracked connection (ie. previous packets). This
1017 is a powerful tool for packet classification.
1018
1019 To compile it as a module, choose M here. If unsure, say N.
1020
Patrick McHardyf3389802006-05-29 18:21:00 -07001021config NETFILTER_XT_MATCH_STATISTIC
1022 tristate '"statistic" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -08001023 depends on NETFILTER_ADVANCED
Patrick McHardyf3389802006-05-29 18:21:00 -07001024 help
Patrick McHardy68c16922006-06-27 03:02:14 -07001025 This option adds a `statistic' match, which allows you to match
1026 on packets periodically or randomly with a given percentage.
1027
1028 To compile it as a module, choose M here. If unsure, say N.
Patrick McHardyf3389802006-05-29 18:21:00 -07001029
Harald Welte2e4e6a12006-01-12 13:30:04 -08001030config NETFILTER_XT_MATCH_STRING
1031 tristate '"string" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -08001032 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -08001033 select TEXTSEARCH
1034 select TEXTSEARCH_KMP
1035 select TEXTSEARCH_BM
1036 select TEXTSEARCH_FSM
1037 help
1038 This option adds a `string' match, which allows you to look for
1039 pattern matchings in packets.
1040
1041 To compile it as a module, choose M here. If unsure, say N.
1042
1043config NETFILTER_XT_MATCH_TCPMSS
1044 tristate '"tcpmss" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -08001045 depends on NETFILTER_ADVANCED
Harald Welte2e4e6a12006-01-12 13:30:04 -08001046 help
1047 This option adds a `tcpmss' match, which allows you to examine the
1048 MSS value of TCP SYN packets, which control the maximum packet size
1049 for that connection.
1050
1051 To compile it as a module, choose M here. If unsure, say N.
1052
Jan Engelhardtee4411a2007-09-28 14:46:43 -07001053config NETFILTER_XT_MATCH_TIME
1054 tristate '"time" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -08001055 depends on NETFILTER_ADVANCED
Jan Engelhardtee4411a2007-09-28 14:46:43 -07001056 ---help---
1057 This option adds a "time" match, which allows you to match based on
1058 the packet arrival time (at the machine which netfilter is running)
1059 on) or departure time/date (for locally generated packets).
1060
1061 If you say Y here, try `iptables -m time --help` for
1062 more information.
1063
1064 If you want to compile it as a module, say M here.
1065 If unsure, say N.
1066
Jan Engelhardt1b50b8a2007-07-07 22:20:36 -07001067config NETFILTER_XT_MATCH_U32
1068 tristate '"u32" match support'
Patrick McHardy33b8e772007-12-17 22:47:05 -08001069 depends on NETFILTER_ADVANCED
Jan Engelhardt1b50b8a2007-07-07 22:20:36 -07001070 ---help---
1071 u32 allows you to extract quantities of up to 4 bytes from a packet,
1072 AND them with specified masks, shift them by specified amounts and
1073 test whether the results are in any of a set of specified ranges.
1074 The specification of what to extract is general enough to skip over
1075 headers with lengths stored in the packet, as in IP or TCP header
1076 lengths.
1077
1078 Details and examples are in the kernel module source.
1079
Jan Engelhardtc2df73d2008-10-08 11:35:18 +02001080endif # NETFILTER_XTABLES
Harald Weltea6c1cd572006-02-13 15:42:48 -08001081
Jan Engelhardtc2df73d2008-10-08 11:35:18 +02001082endmenu
Harald Weltef9e815b2005-08-09 19:30:24 -07001083
Jozsef Kadlecsika7b4f982011-02-01 15:28:35 +01001084source "net/netfilter/ipset/Kconfig"
1085
Julius Volzcb7f6a72008-09-19 12:32:57 +02001086source "net/netfilter/ipvs/Kconfig"