1#
  2# IP netfilter configuration
  3#
  4
  5menu "IP: Netfilter Configuration"
  6	depends on INET && NETFILTER
  7
  8config NF_DEFRAG_IPV4
  9	tristate
 10	default n
 11
 12config NF_CONNTRACK_IPV4
 13	tristate "IPv4 connection tracking support (required for NAT)"
 14	depends on NF_CONNTRACK
 15	default m if NETFILTER_ADVANCED=n
 16	select NF_DEFRAG_IPV4
 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 IPv4 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_IPV4
 29	tristate "IPv4 socket lookup support"
 30	help
 31	  This option enables the IPv4 socket lookup infrastructure. This is
 32	  is required by the iptables socket match.
 
 
 
 33
 34if NF_TABLES
 35
 36config NF_TABLES_IPV4
 37	bool "IPv4 nf_tables support"
 38	help
 39	  This option enables the IPv4 support for nf_tables.
 40
 41if NF_TABLES_IPV4
 42
 43config NFT_CHAIN_ROUTE_IPV4
 44	tristate "IPv4 nf_tables route chain support"
 45	help
 46	  This option enables the "route" chain for IPv4 in nf_tables. This
 47	  chain type is used to force packet re-routing after mangling header
 48	  fields such as the source, destination, type of service and
 49	  the packet mark.
 50
 51config NFT_REJECT_IPV4
 52	select NF_REJECT_IPV4
 53	default NFT_REJECT
 54	tristate
 55
 56config NFT_DUP_IPV4
 57	tristate "IPv4 nf_tables packet duplication support"
 58	depends on !NF_CONNTRACK || NF_CONNTRACK
 59	select NF_DUP_IPV4
 60	help
 61	  This module enables IPv4 packet duplication support for nf_tables.
 62
 63config NFT_FIB_IPV4
 64	select NFT_FIB
 65	tristate "nf_tables fib / ip route lookup support"
 66	help
 67	  This module enables IPv4 FIB lookups, e.g. for reverse path filtering.
 68	  It also allows query of the FIB for the route type, e.g. local, unicast,
 69	  multicast or blackhole.
 70
 71endif # NF_TABLES_IPV4
 72
 73config NF_TABLES_ARP
 74	bool "ARP nf_tables support"
 75	select NETFILTER_FAMILY_ARP
 76	help
 77	  This option enables the ARP support for nf_tables.
 78
 79endif # NF_TABLES
 80
 81config NF_FLOW_TABLE_IPV4
 82	tristate "Netfilter flow table IPv4 module"
 83	depends on NF_FLOW_TABLE
 84	help
 85	  This option adds the flow table IPv4 support.
 86
 87	  To compile it as a module, choose M here.
 88
 89config NF_DUP_IPV4
 90	tristate "Netfilter IPv4 packet duplication to alternate destination"
 91	depends on !NF_CONNTRACK || NF_CONNTRACK
 92	help
 93	  This option enables the nf_dup_ipv4 core, which duplicates an IPv4
 94	  packet to be rerouted to another destination.
 95
 96config NF_LOG_ARP
 97	tristate "ARP packet logging"
 98	default m if NETFILTER_ADVANCED=n
 99	select NF_LOG_COMMON
 
 
 
100
101config NF_LOG_IPV4
102	tristate "IPv4 packet logging"
103	default m if NETFILTER_ADVANCED=n
104	select NF_LOG_COMMON
 
 
 
105
106config NF_REJECT_IPV4
107	tristate "IPv4 packet rejection"
108	default m if NETFILTER_ADVANCED=n
109
110config NF_NAT_IPV4
111	tristate "IPv4 NAT"
112	depends on NF_CONNTRACK_IPV4
113	default m if NETFILTER_ADVANCED=n
114	select NF_NAT
115	help
116	  The IPv4 NAT option allows masquerading, port forwarding and other
117	  forms of full Network Address Port Translation. This can be
118	  controlled by iptables or nft.
119
120if NF_NAT_IPV4
121
122config NFT_CHAIN_NAT_IPV4
123	depends on NF_TABLES_IPV4
124	tristate "IPv4 nf_tables nat chain support"
125	help
126	  This option enables the "nat" chain for IPv4 in nf_tables. This
127	  chain type is used to perform Network Address Translation (NAT)
128	  packet transformations such as the source, destination address and
129	  source and destination ports.
130
131config NF_NAT_MASQUERADE_IPV4
132	tristate "IPv4 masquerade support"
133	help
134	  This is the kernel functionality to provide NAT in the masquerade
135	  flavour (automatic source address selection).
136
137config NFT_MASQ_IPV4
138	tristate "IPv4 masquerading support for nf_tables"
139	depends on NF_TABLES_IPV4
140	depends on NFT_MASQ
141	select NF_NAT_MASQUERADE_IPV4
142	help
143	  This is the expression that provides IPv4 masquerading support for
144	  nf_tables.
145
146config NFT_REDIR_IPV4
147	tristate "IPv4 redirect support for nf_tables"
148	depends on NF_TABLES_IPV4
149	depends on NFT_REDIR
150	select NF_NAT_REDIRECT
151	help
152	  This is the expression that provides IPv4 redirect support for
153	  nf_tables.
154
155config NF_NAT_SNMP_BASIC
156	tristate "Basic SNMP-ALG support"
157	depends on NF_CONNTRACK_SNMP
158	depends on NETFILTER_ADVANCED
159	default NF_NAT && NF_CONNTRACK_SNMP
160	select ASN1
161	---help---
162
163	  This module implements an Application Layer Gateway (ALG) for
164	  SNMP payloads.  In conjunction with NAT, it allows a network
165	  management system to access multiple private networks with
166	  conflicting addresses.  It works by modifying IP addresses
167	  inside SNMP payloads to match IP-layer NAT mapping.
168
169	  This is the "basic" form of SNMP-ALG, as described in RFC 2962
170
171	  To compile it as a module, choose M here.  If unsure, say N.
172
173config NF_NAT_PROTO_GRE
174	tristate
175	depends on NF_CT_PROTO_GRE
176
177config NF_NAT_PPTP
178	tristate
179	depends on NF_CONNTRACK
180	default NF_CONNTRACK_PPTP
181	select NF_NAT_PROTO_GRE
182
183config NF_NAT_H323
184	tristate
185	depends on NF_CONNTRACK
186	default NF_CONNTRACK_H323
187
188endif # NF_NAT_IPV4
189
190config IP_NF_IPTABLES
191	tristate "IP tables support (required for filtering/masq/NAT)"
192	default m if NETFILTER_ADVANCED=n
193	select NETFILTER_XTABLES
194	help
195	  iptables is a general, extensible packet identification framework.
196	  The packet filtering and full NAT (masquerading, port forwarding,
197	  etc) subsystems now use this: say `Y' or `M' here if you want to use
198	  either of those.
199
200	  To compile it as a module, choose M here.  If unsure, say N.
201
202if IP_NF_IPTABLES
203
204# The matches.
205config IP_NF_MATCH_AH
206	tristate '"ah" match support'
207	depends on NETFILTER_ADVANCED
208	help
209	  This match extension allows you to match a range of SPIs
210	  inside AH header of IPSec packets.
211
212	  To compile it as a module, choose M here.  If unsure, say N.
213
214config IP_NF_MATCH_ECN
215	tristate '"ecn" match support'
216	depends on NETFILTER_ADVANCED
217	select NETFILTER_XT_MATCH_ECN
218	---help---
219	This is a backwards-compat option for the user's convenience
220	(e.g. when running oldconfig). It selects
221	CONFIG_NETFILTER_XT_MATCH_ECN.
222
223config IP_NF_MATCH_RPFILTER
224	tristate '"rpfilter" reverse path filter match support'
225	depends on NETFILTER_ADVANCED
226	depends on IP_NF_MANGLE || IP_NF_RAW
227	---help---
228	  This option allows you to match packets whose replies would
229	  go out via the interface the packet came in.
230
231	  To compile it as a module, choose M here.  If unsure, say N.
232	  The module will be called ipt_rpfilter.
233
234config IP_NF_MATCH_TTL
235	tristate '"ttl" match support'
236	depends on NETFILTER_ADVANCED
237	select NETFILTER_XT_MATCH_HL
238	---help---
239	This is a backwards-compat option for the user's convenience
240	(e.g. when running oldconfig). It selects
241	CONFIG_NETFILTER_XT_MATCH_HL.
242
243# `filter', generic and specific targets
244config IP_NF_FILTER
245	tristate "Packet filtering"
246	default m if NETFILTER_ADVANCED=n
 
247	help
248	  Packet filtering defines a table `filter', which has a series of
249	  rules for simple packet filtering at local input, forwarding and
250	  local output.  See the man page for iptables(8).
251
252	  To compile it as a module, choose M here.  If unsure, say N.
253
254config IP_NF_TARGET_REJECT
255	tristate "REJECT target support"
256	depends on IP_NF_FILTER
257	select NF_REJECT_IPV4
258	default m if NETFILTER_ADVANCED=n
259	help
260	  The REJECT target allows a filtering rule to specify that an ICMP
261	  error should be issued in response to an incoming packet, rather
262	  than silently being dropped.
263
264	  To compile it as a module, choose M here.  If unsure, say N.
265
266config IP_NF_TARGET_SYNPROXY
267	tristate "SYNPROXY target support"
268	depends on NF_CONNTRACK && NETFILTER_ADVANCED
269	select NETFILTER_SYNPROXY
270	select SYN_COOKIES
271	help
272	  The SYNPROXY target allows you to intercept TCP connections and
273	  establish them using syncookies before they are passed on to the
274	  server. This allows to avoid conntrack and server resource usage
275	  during SYN-flood attacks.
276
277	  To compile it as a module, choose M here. If unsure, say N.
278
279# NAT + specific targets: nf_conntrack
280config IP_NF_NAT
281	tristate "iptables NAT support"
282	depends on NF_CONNTRACK_IPV4
283	default m if NETFILTER_ADVANCED=n
284	select NF_NAT
285	select NF_NAT_IPV4
286	select NETFILTER_XT_NAT
 
287	help
288	  This enables the `nat' table in iptables. This allows masquerading,
289	  port forwarding and other forms of full Network Address Port
290	  Translation.
291
292	  To compile it as a module, choose M here.  If unsure, say N.
293
294if IP_NF_NAT
295
296config IP_NF_TARGET_MASQUERADE
297	tristate "MASQUERADE target support"
298	select NF_NAT_MASQUERADE_IPV4
299	default m if NETFILTER_ADVANCED=n
300	help
301	  Masquerading is a special case of NAT: all outgoing connections are
302	  changed to seem to come from a particular interface's address, and
303	  if the interface goes down, those connections are lost.  This is
304	  only useful for dialup accounts with dynamic IP address (ie. your IP
305	  address will be different on next dialup).
306
307	  To compile it as a module, choose M here.  If unsure, say N.
308
309config IP_NF_TARGET_NETMAP
310	tristate "NETMAP target support"
311	depends on NETFILTER_ADVANCED
312	select NETFILTER_XT_TARGET_NETMAP
313	---help---
314	This is a backwards-compat option for the user's convenience
315	(e.g. when running oldconfig). It selects
316	CONFIG_NETFILTER_XT_TARGET_NETMAP.
317
318config IP_NF_TARGET_REDIRECT
319	tristate "REDIRECT target support"
320	depends on NETFILTER_ADVANCED
321	select NETFILTER_XT_TARGET_REDIRECT
322	---help---
323	This is a backwards-compat option for the user's convenience
324	(e.g. when running oldconfig). It selects
325	CONFIG_NETFILTER_XT_TARGET_REDIRECT.
326
327endif # IP_NF_NAT
328
329# mangle + specific targets
330config IP_NF_MANGLE
331	tristate "Packet mangling"
332	default m if NETFILTER_ADVANCED=n
 
333	help
334	  This option adds a `mangle' table to iptables: see the man page for
335	  iptables(8).  This table is used for various packet alterations
336	  which can effect how the packet is routed.
337
338	  To compile it as a module, choose M here.  If unsure, say N.
339
340config IP_NF_TARGET_CLUSTERIP
341	tristate "CLUSTERIP target support"
342	depends on IP_NF_MANGLE
343	depends on NF_CONNTRACK_IPV4
344	depends on NETFILTER_ADVANCED
345	select NF_CONNTRACK_MARK
346	select NETFILTER_FAMILY_ARP
347	help
348	  The CLUSTERIP target allows you to build load-balancing clusters of
349	  network servers without having a dedicated load-balancing
350	  router/server/switch.
351	
352	  To compile it as a module, choose M here.  If unsure, say N.
353
354config IP_NF_TARGET_ECN
355	tristate "ECN target support"
356	depends on IP_NF_MANGLE
357	depends on NETFILTER_ADVANCED
358	---help---
359	  This option adds a `ECN' target, which can be used in the iptables mangle
360	  table.  
361
362	  You can use this target to remove the ECN bits from the IPv4 header of
363	  an IP packet.  This is particularly useful, if you need to work around
364	  existing ECN blackholes on the internet, but don't want to disable
365	  ECN support in general.
366
367	  To compile it as a module, choose M here.  If unsure, say N.
368
369config IP_NF_TARGET_TTL
370	tristate '"TTL" target support'
371	depends on NETFILTER_ADVANCED && IP_NF_MANGLE
372	select NETFILTER_XT_TARGET_HL
373	---help---
374	This is a backwards-compatible option for the user's convenience
375	(e.g. when running oldconfig). It selects
376	CONFIG_NETFILTER_XT_TARGET_HL.
377
378# raw + specific targets
379config IP_NF_RAW
380	tristate  'raw table support (required for NOTRACK/TRACE)'
 
381	help
382	  This option adds a `raw' table to iptables. This table is the very
383	  first in the netfilter framework and hooks in at the PREROUTING
384	  and OUTPUT chains.
385	
386	  If you want to compile it as a module, say M here and read
387	  <file:Documentation/kbuild/modules.txt>.  If unsure, say `N'.
388
389# security table for MAC policy
390config IP_NF_SECURITY
391	tristate "Security table"
392	depends on SECURITY
393	depends on NETFILTER_ADVANCED
 
394	help
395	  This option adds a `security' table to iptables, for use
396	  with Mandatory Access Control (MAC) policy.
397	 
398	  If unsure, say N.
399
400endif # IP_NF_IPTABLES
401
402# ARP tables
403config IP_NF_ARPTABLES
404	tristate "ARP tables support"
405	select NETFILTER_XTABLES
406	select NETFILTER_FAMILY_ARP
407	depends on NETFILTER_ADVANCED
408	help
409	  arptables is a general, extensible packet identification framework.
410	  The ARP packet filtering and mangling (manipulation)subsystems
411	  use this: say Y or M here if you want to use either of those.
412
413	  To compile it as a module, choose M here.  If unsure, say N.
414
415if IP_NF_ARPTABLES
 
 
 
 
416
417config IP_NF_ARPFILTER
418	tristate "ARP packet filtering"
 
 
 
419	help
420	  ARP packet filtering defines a table `filter', which has a series of
421	  rules for simple ARP packet filtering at local input and
422	  local output.  On a bridge, you can also specify filtering rules
423	  for forwarded ARP packets. See the man page for arptables(8).
424
425	  To compile it as a module, choose M here.  If unsure, say N.
426
427config IP_NF_ARP_MANGLE
428	tristate "ARP payload mangling"
 
429	help
430	  Allows altering the ARP packet payload: source and destination
431	  hardware and network addresses.
432
433endif # IP_NF_ARPTABLES
 
434
435endmenu
436

  1# SPDX-License-Identifier: GPL-2.0-only
  2#
  3# IP netfilter configuration
  4#
  5
  6menu "IP: Netfilter Configuration"
  7	depends on INET && NETFILTER
  8
  9config NF_DEFRAG_IPV4
 10	tristate
 11	default n
 12
 13# old sockopt interface and eval loop
 14config IP_NF_IPTABLES_LEGACY
 15	tristate
 
 
 
 
 
 
 
 
 
 
 
 
 16
 17config NF_SOCKET_IPV4
 18	tristate "IPv4 socket lookup support"
 19	help
 20	  This option enables the IPv4 socket lookup infrastructure. This is
 21	  is required by the {ip,nf}tables socket match.
 22
 23config NF_TPROXY_IPV4
 24	tristate "IPv4 tproxy support"
 25
 26if NF_TABLES
 27
 28config NF_TABLES_IPV4
 29	bool "IPv4 nf_tables support"
 30	help
 31	  This option enables the IPv4 support for nf_tables.
 32
 33if NF_TABLES_IPV4
 34
 
 
 
 
 
 
 
 
 35config NFT_REJECT_IPV4
 36	select NF_REJECT_IPV4
 37	default NFT_REJECT
 38	tristate
 39
 40config NFT_DUP_IPV4
 41	tristate "IPv4 nf_tables packet duplication support"
 42	depends on !NF_CONNTRACK || NF_CONNTRACK
 43	select NF_DUP_IPV4
 44	help
 45	  This module enables IPv4 packet duplication support for nf_tables.
 46
 47config NFT_FIB_IPV4
 48	select NFT_FIB
 49	tristate "nf_tables fib / ip route lookup support"
 50	help
 51	  This module enables IPv4 FIB lookups, e.g. for reverse path filtering.
 52	  It also allows query of the FIB for the route type, e.g. local, unicast,
 53	  multicast or blackhole.
 54
 55endif # NF_TABLES_IPV4
 56
 57config NF_TABLES_ARP
 58	bool "ARP nf_tables support"
 59	select NETFILTER_FAMILY_ARP
 60	help
 61	  This option enables the ARP support for nf_tables.
 62
 63endif # NF_TABLES
 64
 
 
 
 
 
 
 
 
 65config NF_DUP_IPV4
 66	tristate "Netfilter IPv4 packet duplication to alternate destination"
 67	depends on !NF_CONNTRACK || NF_CONNTRACK
 68	help
 69	  This option enables the nf_dup_ipv4 core, which duplicates an IPv4
 70	  packet to be rerouted to another destination.
 71
 72config NF_LOG_ARP
 73	tristate "ARP packet logging"
 74	default m if NETFILTER_ADVANCED=n
 75	select NF_LOG_SYSLOG
 76	help
 77	This is a backwards-compat option for the user's convenience
 78	(e.g. when running oldconfig). It selects CONFIG_NF_LOG_SYSLOG.
 79
 80config NF_LOG_IPV4
 81	tristate "IPv4 packet logging"
 82	default m if NETFILTER_ADVANCED=n
 83	select NF_LOG_SYSLOG
 84	help
 85	This is a backwards-compat option for the user's convenience
 86	(e.g. when running oldconfig). It selects CONFIG_NF_LOG_SYSLOG.
 87
 88config NF_REJECT_IPV4
 89	tristate "IPv4 packet rejection"
 90	default m if NETFILTER_ADVANCED=n
 91
 92if NF_NAT
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 93config NF_NAT_SNMP_BASIC
 94	tristate "Basic SNMP-ALG support"
 95	depends on NF_CONNTRACK_SNMP
 96	depends on NETFILTER_ADVANCED
 97	default NF_NAT && NF_CONNTRACK_SNMP
 98	select ASN1
 99	help
100
101	  This module implements an Application Layer Gateway (ALG) for
102	  SNMP payloads.  In conjunction with NAT, it allows a network
103	  management system to access multiple private networks with
104	  conflicting addresses.  It works by modifying IP addresses
105	  inside SNMP payloads to match IP-layer NAT mapping.
106
107	  This is the "basic" form of SNMP-ALG, as described in RFC 2962
108
109	  To compile it as a module, choose M here.  If unsure, say N.
110
 
 
 
 
111config NF_NAT_PPTP
112	tristate
113	depends on NF_CONNTRACK
114	default NF_CONNTRACK_PPTP
 
115
116config NF_NAT_H323
117	tristate
118	depends on NF_CONNTRACK
119	default NF_CONNTRACK_H323
120
121endif # NF_NAT
122
123config IP_NF_IPTABLES
124	tristate "IP tables support (required for filtering/masq/NAT)"
125	default m if NETFILTER_ADVANCED=n
126	select NETFILTER_XTABLES
127	help
128	  iptables is a general, extensible packet identification framework.
129	  The packet filtering and full NAT (masquerading, port forwarding,
130	  etc) subsystems now use this: say `Y' or `M' here if you want to use
131	  either of those.
132
133	  To compile it as a module, choose M here.  If unsure, say N.
134
135if IP_NF_IPTABLES
136
137# The matches.
138config IP_NF_MATCH_AH
139	tristate '"ah" match support'
140	depends on NETFILTER_ADVANCED
141	help
142	  This match extension allows you to match a range of SPIs
143	  inside AH header of IPSec packets.
144
145	  To compile it as a module, choose M here.  If unsure, say N.
146
147config IP_NF_MATCH_ECN
148	tristate '"ecn" match support'
149	depends on NETFILTER_ADVANCED
150	select NETFILTER_XT_MATCH_ECN
151	help
152	This is a backwards-compat option for the user's convenience
153	(e.g. when running oldconfig). It selects
154	CONFIG_NETFILTER_XT_MATCH_ECN.
155
156config IP_NF_MATCH_RPFILTER
157	tristate '"rpfilter" reverse path filter match support'
158	depends on NETFILTER_ADVANCED
159	depends on IP_NF_MANGLE || IP_NF_RAW || NFT_COMPAT
160	help
161	  This option allows you to match packets whose replies would
162	  go out via the interface the packet came in.
163
164	  To compile it as a module, choose M here.  If unsure, say N.
165	  The module will be called ipt_rpfilter.
166
167config IP_NF_MATCH_TTL
168	tristate '"ttl" match support'
169	depends on NETFILTER_ADVANCED
170	select NETFILTER_XT_MATCH_HL
171	help
172	This is a backwards-compat option for the user's convenience
173	(e.g. when running oldconfig). It selects
174	CONFIG_NETFILTER_XT_MATCH_HL.
175
176# `filter', generic and specific targets
177config IP_NF_FILTER
178	tristate "Packet filtering"
179	default m if NETFILTER_ADVANCED=n
180	select IP_NF_IPTABLES_LEGACY
181	help
182	  Packet filtering defines a table `filter', which has a series of
183	  rules for simple packet filtering at local input, forwarding and
184	  local output.  See the man page for iptables(8).
185
186	  To compile it as a module, choose M here.  If unsure, say N.
187
188config IP_NF_TARGET_REJECT
189	tristate "REJECT target support"
190	depends on IP_NF_FILTER || NFT_COMPAT
191	select NF_REJECT_IPV4
192	default m if NETFILTER_ADVANCED=n
193	help
194	  The REJECT target allows a filtering rule to specify that an ICMP
195	  error should be issued in response to an incoming packet, rather
196	  than silently being dropped.
197
198	  To compile it as a module, choose M here.  If unsure, say N.
199
200config IP_NF_TARGET_SYNPROXY
201	tristate "SYNPROXY target support"
202	depends on NF_CONNTRACK && NETFILTER_ADVANCED
203	select NETFILTER_SYNPROXY
204	select SYN_COOKIES
205	help
206	  The SYNPROXY target allows you to intercept TCP connections and
207	  establish them using syncookies before they are passed on to the
208	  server. This allows to avoid conntrack and server resource usage
209	  during SYN-flood attacks.
210
211	  To compile it as a module, choose M here. If unsure, say N.
212
213# NAT + specific targets: nf_conntrack
214config IP_NF_NAT
215	tristate "iptables NAT support"
216	depends on NF_CONNTRACK
217	default m if NETFILTER_ADVANCED=n
218	select NF_NAT
 
219	select NETFILTER_XT_NAT
220	select IP_NF_IPTABLES_LEGACY
221	help
222	  This enables the `nat' table in iptables. This allows masquerading,
223	  port forwarding and other forms of full Network Address Port
224	  Translation.
225
226	  To compile it as a module, choose M here.  If unsure, say N.
227
228if IP_NF_NAT
229
230config IP_NF_TARGET_MASQUERADE
231	tristate "MASQUERADE target support"
232	select NETFILTER_XT_TARGET_MASQUERADE
 
233	help
234	  This is a backwards-compat option for the user's convenience
235	  (e.g. when running oldconfig). It selects NETFILTER_XT_TARGET_MASQUERADE.
 
 
 
 
 
236
237config IP_NF_TARGET_NETMAP
238	tristate "NETMAP target support"
239	depends on NETFILTER_ADVANCED
240	select NETFILTER_XT_TARGET_NETMAP
241	help
242	This is a backwards-compat option for the user's convenience
243	(e.g. when running oldconfig). It selects
244	CONFIG_NETFILTER_XT_TARGET_NETMAP.
245
246config IP_NF_TARGET_REDIRECT
247	tristate "REDIRECT target support"
248	depends on NETFILTER_ADVANCED
249	select NETFILTER_XT_TARGET_REDIRECT
250	help
251	This is a backwards-compat option for the user's convenience
252	(e.g. when running oldconfig). It selects
253	CONFIG_NETFILTER_XT_TARGET_REDIRECT.
254
255endif # IP_NF_NAT
256
257# mangle + specific targets
258config IP_NF_MANGLE
259	tristate "Packet mangling"
260	default m if NETFILTER_ADVANCED=n
261	select IP_NF_IPTABLES_LEGACY
262	help
263	  This option adds a `mangle' table to iptables: see the man page for
264	  iptables(8).  This table is used for various packet alterations
265	  which can effect how the packet is routed.
266
267	  To compile it as a module, choose M here.  If unsure, say N.
268
 
 
 
 
 
 
 
 
 
 
 
 
 
 
269config IP_NF_TARGET_ECN
270	tristate "ECN target support"
271	depends on IP_NF_MANGLE || NFT_COMPAT
272	depends on NETFILTER_ADVANCED
273	help
274	  This option adds a `ECN' target, which can be used in the iptables mangle
275	  table.
276
277	  You can use this target to remove the ECN bits from the IPv4 header of
278	  an IP packet.  This is particularly useful, if you need to work around
279	  existing ECN blackholes on the internet, but don't want to disable
280	  ECN support in general.
281
282	  To compile it as a module, choose M here.  If unsure, say N.
283
284config IP_NF_TARGET_TTL
285	tristate '"TTL" target support'
286	depends on NETFILTER_ADVANCED && IP_NF_MANGLE
287	select NETFILTER_XT_TARGET_HL
288	help
289	This is a backwards-compatible option for the user's convenience
290	(e.g. when running oldconfig). It selects
291	CONFIG_NETFILTER_XT_TARGET_HL.
292
293# raw + specific targets
294config IP_NF_RAW
295	tristate  'raw table support (required for NOTRACK/TRACE)'
296	select IP_NF_IPTABLES_LEGACY
297	help
298	  This option adds a `raw' table to iptables. This table is the very
299	  first in the netfilter framework and hooks in at the PREROUTING
300	  and OUTPUT chains.
301
302	  If you want to compile it as a module, say M here and read
303	  <file:Documentation/kbuild/modules.rst>.  If unsure, say `N'.
304
305# security table for MAC policy
306config IP_NF_SECURITY
307	tristate "Security table"
308	depends on SECURITY
309	depends on NETFILTER_ADVANCED
310	select IP_NF_IPTABLES_LEGACY
311	help
312	  This option adds a `security' table to iptables, for use
313	  with Mandatory Access Control (MAC) policy.
314
315	  If unsure, say N.
316
317endif # IP_NF_IPTABLES
318
319# ARP tables
320config IP_NF_ARPTABLES
321	tristate
 
 
 
 
 
 
 
 
 
322
323config NFT_COMPAT_ARP
324	tristate
325	depends on NF_TABLES_ARP && NFT_COMPAT
326	default m if NFT_COMPAT=m
327	default y if NFT_COMPAT=y
328
329config IP_NF_ARPFILTER
330	tristate "arptables-legacy packet filtering support"
331	select IP_NF_ARPTABLES
332	select NETFILTER_FAMILY_ARP
333	depends on NETFILTER_XTABLES
334	help
335	  ARP packet filtering defines a table `filter', which has a series of
336	  rules for simple ARP packet filtering at local input and
337	  local output.  This is only needed for arptables-legacy(8).
338	  Neither arptables-nft nor nftables need this to work.
339
340	  To compile it as a module, choose M here.  If unsure, say N.
341
342config IP_NF_ARP_MANGLE
343	tristate "ARP payload mangling"
344	depends on IP_NF_ARPTABLES || NFT_COMPAT_ARP
345	help
346	  Allows altering the ARP packet payload: source and destination
347	  hardware and network addresses.
348
349	  This option is needed by both arptables-legacy and arptables-nft.
350	  It is not used by nftables.
351
352endmenu
353