xref: /openbmc/linux/net/xfrm/Kconfig (revision 2c684d89) 
1#
2# XFRM configuration
3#
4config XFRM
5       bool
6       depends on NET
7
8config XFRM_ALGO
9	tristate
10	select XFRM
11	select CRYPTO
12
13config XFRM_USER
14	tristate "Transformation user configuration interface"
15	depends on INET
16	select XFRM_ALGO
17	---help---
18	  Support for Transformation(XFRM) user configuration interface
19	  like IPsec used by native Linux tools.
20
21	  If unsure, say Y.
22
23config XFRM_SUB_POLICY
24	bool "Transformation sub policy support"
25	depends on XFRM
26	---help---
27	  Support sub policy for developers. By using sub policy with main
28	  one, two policies can be applied to the same packet at once.
29	  Policy which lives shorter time in kernel should be a sub.
30
31	  If unsure, say N.
32
33config XFRM_MIGRATE
34	bool "Transformation migrate database"
35	depends on XFRM
36	---help---
37	  A feature to update locator(s) of a given IPsec security
38	  association dynamically.  This feature is required, for
39	  instance, in a Mobile IPv6 environment with IPsec configuration
40	  where mobile nodes change their attachment point to the Internet.
41
42	  If unsure, say N.
43
44config XFRM_STATISTICS
45	bool "Transformation statistics"
46	depends on INET && XFRM && PROC_FS
47	---help---
48	  This statistics is not a SNMP/MIB specification but shows
49	  statistics about transformation error (or almost error) factor
50	  at packet processing for developer.
51
52	  If unsure, say N.
53
54config XFRM_IPCOMP
55	tristate
56	select XFRM_ALGO
57	select CRYPTO
58	select CRYPTO_DEFLATE
59
60config NET_KEY
61	tristate "PF_KEY sockets"
62	select XFRM_ALGO
63	---help---
64	  PF_KEYv2 socket family, compatible to KAME ones.
65	  They are required if you are going to use IPsec tools ported
66	  from KAME.
67
68	  Say Y unless you know what you are doing.
69
70config NET_KEY_MIGRATE
71	bool "PF_KEY MIGRATE"
72	depends on NET_KEY
73	select XFRM_MIGRATE
74	---help---
75	  Add a PF_KEY MIGRATE message to PF_KEYv2 socket family.
76	  The PF_KEY MIGRATE message is used to dynamically update
77	  locator(s) of a given IPsec security association.
78	  This feature is required, for instance, in a Mobile IPv6
79	  environment with IPsec configuration where mobile nodes
80	  change their attachment point to the Internet.  Detail
81	  information can be found in the internet-draft
82	  <draft-sugimoto-mip6-pfkey-migrate>.
83
84	  If unsure, say N.
85
86