1# SPDX-License-Identifier: GPL-2.0-only 2# 3# XFRM configuration 4# 5config XFRM 6 bool 7 depends on INET 8 select GRO_CELLS 9 select SKB_EXTENSIONS 10 11config XFRM_OFFLOAD 12 bool 13 14config XFRM_ALGO 15 tristate 16 select XFRM 17 select CRYPTO 18 select CRYPTO_HASH 19 select CRYPTO_SKCIPHER 20 21if INET 22config XFRM_USER 23 tristate "Transformation user configuration interface" 24 select XFRM_ALGO 25 ---help--- 26 Support for Transformation(XFRM) user configuration interface 27 like IPsec used by native Linux tools. 28 29 If unsure, say Y. 30 31config XFRM_INTERFACE 32 tristate "Transformation virtual interface" 33 depends on XFRM && IPV6 34 ---help--- 35 This provides a virtual interface to route IPsec traffic. 36 37 If unsure, say N. 38 39config XFRM_SUB_POLICY 40 bool "Transformation sub policy support" 41 depends on XFRM 42 ---help--- 43 Support sub policy for developers. By using sub policy with main 44 one, two policies can be applied to the same packet at once. 45 Policy which lives shorter time in kernel should be a sub. 46 47 If unsure, say N. 48 49config XFRM_MIGRATE 50 bool "Transformation migrate database" 51 depends on XFRM 52 ---help--- 53 A feature to update locator(s) of a given IPsec security 54 association dynamically. This feature is required, for 55 instance, in a Mobile IPv6 environment with IPsec configuration 56 where mobile nodes change their attachment point to the Internet. 57 58 If unsure, say N. 59 60config XFRM_STATISTICS 61 bool "Transformation statistics" 62 depends on XFRM && PROC_FS 63 ---help--- 64 This statistics is not a SNMP/MIB specification but shows 65 statistics about transformation error (or almost error) factor 66 at packet processing for developer. 67 68 If unsure, say N. 69 70config XFRM_IPCOMP 71 tristate 72 select XFRM_ALGO 73 select CRYPTO 74 select CRYPTO_DEFLATE 75 76config NET_KEY 77 tristate "PF_KEY sockets" 78 select XFRM_ALGO 79 ---help--- 80 PF_KEYv2 socket family, compatible to KAME ones. 81 They are required if you are going to use IPsec tools ported 82 from KAME. 83 84 Say Y unless you know what you are doing. 85 86config NET_KEY_MIGRATE 87 bool "PF_KEY MIGRATE" 88 depends on NET_KEY 89 select XFRM_MIGRATE 90 ---help--- 91 Add a PF_KEY MIGRATE message to PF_KEYv2 socket family. 92 The PF_KEY MIGRATE message is used to dynamically update 93 locator(s) of a given IPsec security association. 94 This feature is required, for instance, in a Mobile IPv6 95 environment with IPsec configuration where mobile nodes 96 change their attachment point to the Internet. Detail 97 information can be found in the internet-draft 98 <draft-sugimoto-mip6-pfkey-migrate>. 99 100 If unsure, say N. 101 102endif # INET 103