[linux-2.6-block.git] / net / xfrm / Kconfig

# SPDX-License-Identifier: GPL-2.0-only
#
# XFRM configuration
#
config XFRM
	bool
	depends on INET
	select GRO_CELLS
	select SKB_EXTENSIONS

config XFRM_OFFLOAD
	bool

config XFRM_ALGO
	tristate
	select XFRM
	select CRYPTO
	select CRYPTO_HASH
	select CRYPTO_SKCIPHER

if INET
config XFRM_USER
	tristate "Transformation user configuration interface"
	select XFRM_ALGO
	help
	  Support for Transformation(XFRM) user configuration interface
	  like IPsec used by native Linux tools.

	  If unsure, say Y.

config XFRM_USER_COMPAT
	tristate "Compatible ABI support"
	depends on XFRM_USER && COMPAT_FOR_U64_ALIGNMENT && \
		HAVE_EFFICIENT_UNALIGNED_ACCESS
	select WANT_COMPAT_NETLINK_MESSAGES
	help
	  Transformation(XFRM) user configuration interface like IPsec
	  used by compatible Linux applications.

	  If unsure, say N.

config XFRM_INTERFACE
	tristate "Transformation virtual interface"
	depends on XFRM && IPV6
	help
	  This provides a virtual interface to route IPsec traffic.

	  If unsure, say N.

config XFRM_SUB_POLICY
	bool "Transformation sub policy support"
	depends on XFRM
	help
	  Support sub policy for developers. By using sub policy with main
	  one, two policies can be applied to the same packet at once.
	  Policy which lives shorter time in kernel should be a sub.

	  If unsure, say N.

config XFRM_MIGRATE
	bool "Transformation migrate database"
	depends on XFRM
	help
	  A feature to update locator(s) of a given IPsec security
	  association dynamically.  This feature is required, for
	  instance, in a Mobile IPv6 environment with IPsec configuration
	  where mobile nodes change their attachment point to the Internet.

	  If unsure, say N.

config XFRM_STATISTICS
	bool "Transformation statistics"
	depends on XFRM && PROC_FS
	help
	  This statistics is not a SNMP/MIB specification but shows
	  statistics about transformation error (or almost error) factor
	  at packet processing for developer.

	  If unsure, say N.

# This option selects XFRM_ALGO along with the AH authentication algorithms that
# RFC 8221 lists as MUST be implemented.
config XFRM_AH
	tristate
	select XFRM_ALGO
	select CRYPTO
	select CRYPTO_HMAC
	select CRYPTO_SHA256

# This option selects XFRM_ALGO along with the ESP encryption and authentication
# algorithms that RFC 8221 lists as MUST be implemented.
config XFRM_ESP
	tristate
	select XFRM_ALGO
	select CRYPTO
	select CRYPTO_AES
	select CRYPTO_AUTHENC
	select CRYPTO_CBC
	select CRYPTO_ECHAINIV
	select CRYPTO_GCM
	select CRYPTO_HMAC
	select CRYPTO_SEQIV
	select CRYPTO_SHA256

config XFRM_IPCOMP
	tristate
	select XFRM_ALGO
	select CRYPTO
	select CRYPTO_DEFLATE

config NET_KEY
	tristate "PF_KEY sockets"
	select XFRM_ALGO
	help
	  PF_KEYv2 socket family, compatible to KAME ones.
	  They are required if you are going to use IPsec tools ported
	  from KAME.

	  Say Y unless you know what you are doing.

config NET_KEY_MIGRATE
	bool "PF_KEY MIGRATE"
	depends on NET_KEY
	select XFRM_MIGRATE
	help
	  Add a PF_KEY MIGRATE message to PF_KEYv2 socket family.
	  The PF_KEY MIGRATE message is used to dynamically update
	  locator(s) of a given IPsec security association.
	  This feature is required, for instance, in a Mobile IPv6
	  environment with IPsec configuration where mobile nodes
	  change their attachment point to the Internet.  Detail
	  information can be found in the internet-draft
	  <draft-sugimoto-mip6-pfkey-migrate>.

	  If unsure, say N.

config XFRM_ESPINTCP
	bool

endif # INET
Commit	Line	Data
ec8f24b7	1	# SPDX-License-Identifier: GPL-2.0-only
1da177e4 LT	2	#
	3	# XFRM configuration
	4	#
6a2e9b73	5	config XFRM
43da1411 KK	6	bool
	7	depends on INET
	8	select GRO_CELLS
	9	select SKB_EXTENSIONS
6a2e9b73	10
25393d3f	11	config XFRM_OFFLOAD
43da1411	12	bool
25393d3f	13
7e152524 JB	14	config XFRM_ALGO
	15	tristate
	16	select XFRM
	17	select CRYPTO
597179b0	18	select CRYPTO_HASH
b95bba5d	19	select CRYPTO_SKCIPHER
7e152524	20
e54d1527	21	if INET
1da177e4	22	config XFRM_USER
654b32c6	23	tristate "Transformation user configuration interface"
7e152524	24	select XFRM_ALGO
a7f7f624	25	help
654b32c6 MN	26	Support for Transformation(XFRM) user configuration interface
654b32c6 MN	27	like IPsec used by native Linux tools.
1da177e4 LT	28
	29	If unsure, say Y.
	30
c9e7c76d DS	31	config XFRM_USER_COMPAT
c9e7c76d DS	32	tristate "Compatible ABI support"
5106f4a8 DS	33	depends on XFRM_USER && COMPAT_FOR_U64_ALIGNMENT && \
5106f4a8 DS	34	HAVE_EFFICIENT_UNALIGNED_ACCESS
c9e7c76d DS	35	select WANT_COMPAT_NETLINK_MESSAGES
	36	help
	37	Transformation(XFRM) user configuration interface like IPsec
	38	used by compatible Linux applications.
	39
	40	If unsure, say N.
	41
f203b76d SK	42	config XFRM_INTERFACE
	43	tristate "Transformation virtual interface"
	44	depends on XFRM && IPV6
a7f7f624	45	help
f203b76d SK	46	This provides a virtual interface to route IPsec traffic.
	47
	48	If unsure, say N.
	49
c11f1a15	50	config XFRM_SUB_POLICY
f215bf48 KC	51	bool "Transformation sub policy support"
f215bf48 KC	52	depends on XFRM
a7f7f624	53	help
c11f1a15 MN	54	Support sub policy for developers. By using sub policy with main
	55	one, two policies can be applied to the same packet at once.
	56	Policy which lives shorter time in kernel should be a sub.
	57
	58	If unsure, say N.
	59
d0473655	60	config XFRM_MIGRATE
f215bf48 KC	61	bool "Transformation migrate database"
f215bf48 KC	62	depends on XFRM
a7f7f624	63	help
d0473655 SS	64	A feature to update locator(s) of a given IPsec security
	65	association dynamically. This feature is required, for
	66	instance, in a Mobile IPv6 environment with IPsec configuration
	67	where mobile nodes change their attachment point to the Internet.
	68
	69	If unsure, say N.
	70
8ea84349	71	config XFRM_STATISTICS
f215bf48	72	bool "Transformation statistics"
e54d1527	73	depends on XFRM && PROC_FS
a7f7f624	74	help
8ea84349 MN	75	This statistics is not a SNMP/MIB specification but shows
	76	statistics about transformation error (or almost error) factor
	77	at packet processing for developer.
	78
	79	If unsure, say N.
	80
be013698 EB	81	# This option selects XFRM_ALGO along with the AH authentication algorithms that
be013698 EB	82	# RFC 8221 lists as MUST be implemented.
7d4e3919 EB	83	config XFRM_AH
	84	tristate
	85	select XFRM_ALGO
	86	select CRYPTO
	87	select CRYPTO_HMAC
be013698	88	select CRYPTO_SHA256
7d4e3919	89
be013698 EB	90	# This option selects XFRM_ALGO along with the ESP encryption and authentication
be013698 EB	91	# algorithms that RFC 8221 lists as MUST be implemented.
7d4e3919 EB	92	config XFRM_ESP
	93	tristate
	94	select XFRM_ALGO
	95	select CRYPTO
be013698	96	select CRYPTO_AES
7d4e3919	97	select CRYPTO_AUTHENC
7d4e3919	98	select CRYPTO_CBC
7d4e3919	99	select CRYPTO_ECHAINIV
be013698 EB	100	select CRYPTO_GCM
be013698 EB	101	select CRYPTO_HMAC
37ea0f18	102	select CRYPTO_SEQIV
be013698	103	select CRYPTO_SHA256
7d4e3919	104
6fccab67 HX	105	config XFRM_IPCOMP
6fccab67 HX	106	tristate
7e152524	107	select XFRM_ALGO
6fccab67 HX	108	select CRYPTO
	109	select CRYPTO_DEFLATE
	110
6a2e9b73 SR	111	config NET_KEY
6a2e9b73 SR	112	tristate "PF_KEY sockets"
7e152524	113	select XFRM_ALGO
a7f7f624	114	help
6a2e9b73 SR	115	PF_KEYv2 socket family, compatible to KAME ones.
	116	They are required if you are going to use IPsec tools ported
	117	from KAME.
	118
	119	Say Y unless you know what you are doing.
	120
f6ed0ec0	121	config NET_KEY_MIGRATE
f215bf48 KC	122	bool "PF_KEY MIGRATE"
f215bf48 KC	123	depends on NET_KEY
f6ed0ec0	124	select XFRM_MIGRATE
a7f7f624	125	help
f6ed0ec0 SS	126	Add a PF_KEY MIGRATE message to PF_KEYv2 socket family.
	127	The PF_KEY MIGRATE message is used to dynamically update
	128	locator(s) of a given IPsec security association.
	129	This feature is required, for instance, in a Mobile IPv6
	130	environment with IPsec configuration where mobile nodes
	131	change their attachment point to the Internet. Detail
	132	information can be found in the internet-draft
	133	<draft-sugimoto-mip6-pfkey-migrate>.
	134
	135	If unsure, say N.
e54d1527	136
26333c37 SD	137	config XFRM_ESPINTCP
	138	bool
	139
e54d1527	140	endif # INET