net/ipv6/netfilter/Kconfig - linux - Git at Google

 # SPDX-License-Identifier: GPL-2.0-only
 #
 # IP netfilter configuration
 #

 menu "IPv6: Netfilter Configuration"
 	depends on INET && IPV6 && NETFILTER

 config NF_SOCKET_IPV6
 	tristate "IPv6 socket lookup support"
 	help
 	  This option enables the IPv6 socket lookup infrastructure. This
 	  is used by the {ip6,nf}tables socket match.

 config NF_TPROXY_IPV6
 	tristate "IPv6 tproxy support"

 if NF_TABLES

 config NF_TABLES_IPV6
 	bool "IPv6 nf_tables support"
 	help
 	  This option enables the IPv6 support for nf_tables.

 if NF_TABLES_IPV6

 config NFT_REJECT_IPV6
 	select NF_REJECT_IPV6
 	default NFT_REJECT
 	tristate

 config NFT_DUP_IPV6
 	tristate "IPv6 nf_tables packet duplication support"
 	depends on !NF_CONNTRACK || NF_CONNTRACK
 	select NF_DUP_IPV6
 	help
 	  This module enables IPv6 packet duplication support for nf_tables.

 config NFT_FIB_IPV6
 	tristate "nf_tables fib / ipv6 route lookup support"
 	select NFT_FIB
 	help
 	  This module enables IPv6 FIB lookups, e.g. for reverse path filtering.
 	  It also allows query of the FIB for the route type, e.g. local, unicast,
 	  multicast or blackhole.

 endif # NF_TABLES_IPV6
 endif # NF_TABLES

 config NF_FLOW_TABLE_IPV6
 	tristate "Netfilter flow table IPv6 module"
 	depends on NF_FLOW_TABLE
 	help
 	  This option adds the flow table IPv6 support.

 	  To compile it as a module, choose M here.

 config NF_DUP_IPV6
 	tristate "Netfilter IPv6 packet duplication to alternate destination"
 	depends on !NF_CONNTRACK || NF_CONNTRACK
 	help
 	  This option enables the nf_dup_ipv6 core, which duplicates an IPv6
 	  packet to be rerouted to another destination.

 config NF_REJECT_IPV6
 	tristate "IPv6 packet rejection"
 	default m if NETFILTER_ADVANCED=n

 config NF_LOG_IPV6
 	tristate "IPv6 packet logging"
 	default m if NETFILTER_ADVANCED=n
 	select NF_LOG_COMMON

 config IP6_NF_IPTABLES
 	tristate "IP6 tables support (required for filtering)"
 	depends on INET && IPV6
 	select NETFILTER_XTABLES
 	default m if NETFILTER_ADVANCED=n
 	help
 	  ip6tables is a general, extensible packet identification framework.
 	  Currently only the packet filtering and packet mangling subsystem
 	  for IPv6 use this, but connection tracking is going to follow.
 	  Say 'Y' or 'M' here if you want to use either of those.

 	  To compile it as a module, choose M here.  If unsure, say N.

 if IP6_NF_IPTABLES

 # The simple matches.
 config IP6_NF_MATCH_AH
 	tristate '"ah" match support'
 	depends on NETFILTER_ADVANCED
 	help
 	  This module allows one to match AH packets.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_EUI64
 	tristate '"eui64" address check'
 	depends on NETFILTER_ADVANCED
 	help
 	  This module performs checking on the IPv6 source address
 	  Compares the last 64 bits with the EUI64 (delivered
 	  from the MAC address) address

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_FRAG
 	tristate '"frag" Fragmentation header match support'
 	depends on NETFILTER_ADVANCED
 	help
 	  frag matching allows you to match packets based on the fragmentation
 	  header of the packet.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_OPTS
 	tristate '"hbh" hop-by-hop and "dst" opts header match support'
 	depends on NETFILTER_ADVANCED
 	help
 	  This allows one to match packets based on the hop-by-hop
 	  and destination options headers of a packet.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_HL
 	tristate '"hl" hoplimit match support'
 	depends on NETFILTER_ADVANCED
 	select NETFILTER_XT_MATCH_HL
 	---help---
 	This is a backwards-compat option for the user's convenience
 	(e.g. when running oldconfig). It selects
 	CONFIG_NETFILTER_XT_MATCH_HL.

 config IP6_NF_MATCH_IPV6HEADER
 	tristate '"ipv6header" IPv6 Extension Headers Match'
 	default m if NETFILTER_ADVANCED=n
 	help
 	  This module allows one to match packets based upon
 	  the ipv6 extension headers.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_MH
 	tristate '"mh" match support'
 	depends on NETFILTER_ADVANCED
 	help
 	  This module allows one to match MH packets.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_RPFILTER
 	tristate '"rpfilter" reverse path filter match support'
 	depends on NETFILTER_ADVANCED
 	depends on IP6_NF_MANGLE || IP6_NF_RAW
 	---help---
 	  This option allows you to match packets whose replies would
 	  go out via the interface the packet came in.

 	  To compile it as a module, choose M here.  If unsure, say N.
 	  The module will be called ip6t_rpfilter.

 config IP6_NF_MATCH_RT
 	tristate '"rt" Routing header match support'
 	depends on NETFILTER_ADVANCED
 	help
 	  rt matching allows you to match packets based on the routing
 	  header of the packet.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_MATCH_SRH
 	tristate '"srh" Segment Routing header match support'
 	depends on NETFILTER_ADVANCED
 	help
 	  srh matching allows you to match packets based on the segment
 	  routing header of the packet.

 	  To compile it as a module, choose M here.  If unsure, say N.

 # The targets
 config IP6_NF_TARGET_HL
 	tristate '"HL" hoplimit target support'
 	depends on NETFILTER_ADVANCED && IP6_NF_MANGLE
 	select NETFILTER_XT_TARGET_HL
 	---help---
 	This is a backwards-compatible option for the user's convenience
 	(e.g. when running oldconfig). It selects
 	CONFIG_NETFILTER_XT_TARGET_HL.

 config IP6_NF_FILTER
 	tristate "Packet filtering"
 	default m if NETFILTER_ADVANCED=n
 	help
 	  Packet filtering defines a table `filter', which has a series of
 	  rules for simple packet filtering at local input, forwarding and
 	  local output.  See the man page for iptables(8).

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_TARGET_REJECT
 	tristate "REJECT target support"
 	depends on IP6_NF_FILTER
 	select NF_REJECT_IPV6
 	default m if NETFILTER_ADVANCED=n
 	help
 	  The REJECT target allows a filtering rule to specify that an ICMPv6
 	  error should be issued in response to an incoming packet, rather
 	  than silently being dropped.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_TARGET_SYNPROXY
 	tristate "SYNPROXY target support"
 	depends on NF_CONNTRACK && NETFILTER_ADVANCED
 	select NETFILTER_SYNPROXY
 	select SYN_COOKIES
 	help
 	  The SYNPROXY target allows you to intercept TCP connections and
 	  establish them using syncookies before they are passed on to the
 	  server. This allows to avoid conntrack and server resource usage
 	  during SYN-flood attacks.

 	  To compile it as a module, choose M here. If unsure, say N.

 config IP6_NF_MANGLE
 	tristate "Packet mangling"
 	default m if NETFILTER_ADVANCED=n
 	help
 	  This option adds a `mangle' table to iptables: see the man page for
 	  iptables(8).  This table is used for various packet alterations
 	  which can effect how the packet is routed.

 	  To compile it as a module, choose M here.  If unsure, say N.

 config IP6_NF_RAW
 	tristate  'raw table support (required for TRACE)'
 	help
 	  This option adds a `raw' table to ip6tables. This table is the very
 	  first in the netfilter framework and hooks in at the PREROUTING
 	  and OUTPUT chains.

 	  If you want to compile it as a module, say M here and read
 	  <file:Documentation/kbuild/modules.rst>.  If unsure, say `N'.

 # security table for MAC policy
 config IP6_NF_SECURITY
        tristate "Security table"
        depends on SECURITY
        depends on NETFILTER_ADVANCED
        help
 	 This option adds a `security' table to iptables, for use
 	 with Mandatory Access Control (MAC) policy.

 	 If unsure, say N.

 config IP6_NF_NAT
 	tristate "ip6tables NAT support"
 	depends on NF_CONNTRACK
 	depends on NETFILTER_ADVANCED
 	select NF_NAT
 	select NETFILTER_XT_NAT
 	help
 	  This enables the `nat' table in ip6tables. This allows masquerading,
 	  port forwarding and other forms of full Network Address Port
 	  Translation.

 	  To compile it as a module, choose M here.  If unsure, say N.

 if IP6_NF_NAT

 config IP6_NF_TARGET_MASQUERADE
 	tristate "MASQUERADE target support"
 	select NETFILTER_XT_TARGET_MASQUERADE
 	help
 	  This is a backwards-compat option for the user's convenience
 	  (e.g. when running oldconfig). It selects NETFILTER_XT_TARGET_MASQUERADE.

 config IP6_NF_TARGET_NPT
 	tristate "NPT (Network Prefix translation) target support"
 	help
 	  This option adds the `SNPT' and `DNPT' target, which perform
 	  stateless IPv6-to-IPv6 Network Prefix Translation per RFC 6296.

 	  To compile it as a module, choose M here.  If unsure, say N.

 endif # IP6_NF_NAT

 endif # IP6_NF_IPTABLES
 endmenu

 config NF_DEFRAG_IPV6
 	tristate
	# SPDX-License-Identifier: GPL-2.0-only
	#
	# IP netfilter configuration
	#

	menu "IPv6: Netfilter Configuration"
	depends on INET && IPV6 && NETFILTER

	config NF_SOCKET_IPV6
	tristate "IPv6 socket lookup support"
	help
	This option enables the IPv6 socket lookup infrastructure. This
	is used by the {ip6,nf}tables socket match.

	config NF_TPROXY_IPV6
	tristate "IPv6 tproxy support"

	if NF_TABLES

	config NF_TABLES_IPV6
	bool "IPv6 nf_tables support"
	help
	This option enables the IPv6 support for nf_tables.

	if NF_TABLES_IPV6

	config NFT_REJECT_IPV6
	select NF_REJECT_IPV6
	default NFT_REJECT
	tristate

	config NFT_DUP_IPV6
	tristate "IPv6 nf_tables packet duplication support"
	depends on !NF_CONNTRACK \|\| NF_CONNTRACK
	select NF_DUP_IPV6
	help
	This module enables IPv6 packet duplication support for nf_tables.

	config NFT_FIB_IPV6
	tristate "nf_tables fib / ipv6 route lookup support"
	select NFT_FIB
	help
	This module enables IPv6 FIB lookups, e.g. for reverse path filtering.
	It also allows query of the FIB for the route type, e.g. local, unicast,
	multicast or blackhole.

	endif # NF_TABLES_IPV6
	endif # NF_TABLES

	config NF_FLOW_TABLE_IPV6
	tristate "Netfilter flow table IPv6 module"
	depends on NF_FLOW_TABLE
	help
	This option adds the flow table IPv6 support.

	To compile it as a module, choose M here.

	config NF_DUP_IPV6
	tristate "Netfilter IPv6 packet duplication to alternate destination"
	depends on !NF_CONNTRACK \|\| NF_CONNTRACK
	help
	This option enables the nf_dup_ipv6 core, which duplicates an IPv6
	packet to be rerouted to another destination.

	config NF_REJECT_IPV6
	tristate "IPv6 packet rejection"
	default m if NETFILTER_ADVANCED=n

	config NF_LOG_IPV6
	tristate "IPv6 packet logging"
	default m if NETFILTER_ADVANCED=n
	select NF_LOG_COMMON

	config IP6_NF_IPTABLES
	tristate "IP6 tables support (required for filtering)"
	depends on INET && IPV6
	select NETFILTER_XTABLES
	default m if NETFILTER_ADVANCED=n
	help
	ip6tables is a general, extensible packet identification framework.
	Currently only the packet filtering and packet mangling subsystem
	for IPv6 use this, but connection tracking is going to follow.
	Say 'Y' or 'M' here if you want to use either of those.

	To compile it as a module, choose M here. If unsure, say N.

	if IP6_NF_IPTABLES

	# The simple matches.
	config IP6_NF_MATCH_AH
	tristate '"ah" match support'
	depends on NETFILTER_ADVANCED
	help
	This module allows one to match AH packets.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_EUI64
	tristate '"eui64" address check'
	depends on NETFILTER_ADVANCED
	help
	This module performs checking on the IPv6 source address
	Compares the last 64 bits with the EUI64 (delivered
	from the MAC address) address

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_FRAG
	tristate '"frag" Fragmentation header match support'
	depends on NETFILTER_ADVANCED
	help
	frag matching allows you to match packets based on the fragmentation
	header of the packet.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_OPTS
	tristate '"hbh" hop-by-hop and "dst" opts header match support'
	depends on NETFILTER_ADVANCED
	help
	This allows one to match packets based on the hop-by-hop
	and destination options headers of a packet.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_HL
	tristate '"hl" hoplimit match support'
	depends on NETFILTER_ADVANCED
	select NETFILTER_XT_MATCH_HL
	---help---
	This is a backwards-compat option for the user's convenience
	(e.g. when running oldconfig). It selects
	CONFIG_NETFILTER_XT_MATCH_HL.

	config IP6_NF_MATCH_IPV6HEADER
	tristate '"ipv6header" IPv6 Extension Headers Match'
	default m if NETFILTER_ADVANCED=n
	help
	This module allows one to match packets based upon
	the ipv6 extension headers.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_MH
	tristate '"mh" match support'
	depends on NETFILTER_ADVANCED
	help
	This module allows one to match MH packets.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_RPFILTER
	tristate '"rpfilter" reverse path filter match support'
	depends on NETFILTER_ADVANCED
	depends on IP6_NF_MANGLE \|\| IP6_NF_RAW
	---help---
	This option allows you to match packets whose replies would
	go out via the interface the packet came in.

	To compile it as a module, choose M here. If unsure, say N.
	The module will be called ip6t_rpfilter.

	config IP6_NF_MATCH_RT
	tristate '"rt" Routing header match support'
	depends on NETFILTER_ADVANCED
	help
	rt matching allows you to match packets based on the routing
	header of the packet.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MATCH_SRH
	tristate '"srh" Segment Routing header match support'
	depends on NETFILTER_ADVANCED
	help
	srh matching allows you to match packets based on the segment
	routing header of the packet.

	To compile it as a module, choose M here. If unsure, say N.

	# The targets
	config IP6_NF_TARGET_HL
	tristate '"HL" hoplimit target support'
	depends on NETFILTER_ADVANCED && IP6_NF_MANGLE
	select NETFILTER_XT_TARGET_HL
	---help---
	This is a backwards-compatible option for the user's convenience
	(e.g. when running oldconfig). It selects
	CONFIG_NETFILTER_XT_TARGET_HL.

	config IP6_NF_FILTER
	tristate "Packet filtering"
	default m if NETFILTER_ADVANCED=n
	help
	Packet filtering defines a table `filter', which has a series of
	rules for simple packet filtering at local input, forwarding and
	local output. See the man page for iptables(8).

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_TARGET_REJECT
	tristate "REJECT target support"
	depends on IP6_NF_FILTER
	select NF_REJECT_IPV6
	default m if NETFILTER_ADVANCED=n
	help
	The REJECT target allows a filtering rule to specify that an ICMPv6
	error should be issued in response to an incoming packet, rather
	than silently being dropped.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_TARGET_SYNPROXY
	tristate "SYNPROXY target support"
	depends on NF_CONNTRACK && NETFILTER_ADVANCED
	select NETFILTER_SYNPROXY
	select SYN_COOKIES
	help
	The SYNPROXY target allows you to intercept TCP connections and
	establish them using syncookies before they are passed on to the
	server. This allows to avoid conntrack and server resource usage
	during SYN-flood attacks.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_MANGLE
	tristate "Packet mangling"
	default m if NETFILTER_ADVANCED=n
	help
	This option adds a `mangle' table to iptables: see the man page for
	iptables(8). This table is used for various packet alterations
	which can effect how the packet is routed.

	To compile it as a module, choose M here. If unsure, say N.

	config IP6_NF_RAW
	tristate 'raw table support (required for TRACE)'
	help
	This option adds a `raw' table to ip6tables. This table is the very
	first in the netfilter framework and hooks in at the PREROUTING
	and OUTPUT chains.

	If you want to compile it as a module, say M here and read
	<file:Documentation/kbuild/modules.rst>. If unsure, say `N'.

	# security table for MAC policy
	config IP6_NF_SECURITY
	tristate "Security table"
	depends on SECURITY
	depends on NETFILTER_ADVANCED
	help
	This option adds a `security' table to iptables, for use
	with Mandatory Access Control (MAC) policy.

	If unsure, say N.

	config IP6_NF_NAT
	tristate "ip6tables NAT support"
	depends on NF_CONNTRACK
	depends on NETFILTER_ADVANCED
	select NF_NAT
	select NETFILTER_XT_NAT
	help
	This enables the `nat' table in ip6tables. This allows masquerading,
	port forwarding and other forms of full Network Address Port
	Translation.

	To compile it as a module, choose M here. If unsure, say N.

	if IP6_NF_NAT

	config IP6_NF_TARGET_MASQUERADE
	tristate "MASQUERADE target support"
	select NETFILTER_XT_TARGET_MASQUERADE
	help
	This is a backwards-compat option for the user's convenience
	(e.g. when running oldconfig). It selects NETFILTER_XT_TARGET_MASQUERADE.

	config IP6_NF_TARGET_NPT
	tristate "NPT (Network Prefix translation) target support"
	help
	This option adds the `SNPT' and `DNPT' target, which perform
	stateless IPv6-to-IPv6 Network Prefix Translation per RFC 6296.

	To compile it as a module, choose M here. If unsure, say N.

	endif # IP6_NF_NAT

	endif # IP6_NF_IPTABLES
	endmenu

	config NF_DEFRAG_IPV6
	tristate