f203b76d78
This patch adds support for virtual xfrm interfaces. Packets that are routed through such an interface are guaranteed to be IPsec transformed or dropped. It is a generic virtual interface that ensures IPsec transformation, no need to know what happens behind the interface. This means that we can tunnel IPv4 and IPv6 through the same interface and support all xfrm modes (tunnel, transport and beet) on it. Co-developed-by: Lorenzo Colitti <lorenzo@google.com> Co-developed-by: Benedict Wong <benedictwong@google.com> Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Signed-off-by: Benedict Wong <benedictwong@google.com> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Tested-by: Benedict Wong <benedictwong@google.com> Tested-by: Antony Antony <antony@phenome.org> Reviewed-by: Eyal Birger <eyal.birger@gmail.com>
99 lines
2.5 KiB
Plaintext
99 lines
2.5 KiB
Plaintext
#
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# XFRM configuration
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#
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config XFRM
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bool
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depends on NET
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select GRO_CELLS
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config XFRM_OFFLOAD
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bool
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depends on XFRM
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config XFRM_ALGO
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tristate
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select XFRM
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select CRYPTO
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config XFRM_USER
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tristate "Transformation user configuration interface"
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depends on INET
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select XFRM_ALGO
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---help---
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Support for Transformation(XFRM) user configuration interface
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like IPsec used by native Linux tools.
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If unsure, say Y.
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config XFRM_INTERFACE
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tristate "Transformation virtual interface"
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depends on XFRM && IPV6
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---help---
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This provides a virtual interface to route IPsec traffic.
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If unsure, say N.
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config XFRM_SUB_POLICY
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bool "Transformation sub policy support"
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depends on XFRM
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---help---
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Support sub policy for developers. By using sub policy with main
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one, two policies can be applied to the same packet at once.
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Policy which lives shorter time in kernel should be a sub.
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If unsure, say N.
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config XFRM_MIGRATE
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bool "Transformation migrate database"
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depends on XFRM
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---help---
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A feature to update locator(s) of a given IPsec security
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association dynamically. This feature is required, for
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instance, in a Mobile IPv6 environment with IPsec configuration
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where mobile nodes change their attachment point to the Internet.
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If unsure, say N.
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config XFRM_STATISTICS
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bool "Transformation statistics"
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depends on INET && XFRM && PROC_FS
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---help---
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This statistics is not a SNMP/MIB specification but shows
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statistics about transformation error (or almost error) factor
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at packet processing for developer.
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If unsure, say N.
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config XFRM_IPCOMP
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tristate
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select XFRM_ALGO
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select CRYPTO
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select CRYPTO_DEFLATE
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config NET_KEY
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tristate "PF_KEY sockets"
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select XFRM_ALGO
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---help---
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PF_KEYv2 socket family, compatible to KAME ones.
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They are required if you are going to use IPsec tools ported
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from KAME.
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Say Y unless you know what you are doing.
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config NET_KEY_MIGRATE
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bool "PF_KEY MIGRATE"
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depends on NET_KEY
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select XFRM_MIGRATE
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---help---
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Add a PF_KEY MIGRATE message to PF_KEYv2 socket family.
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The PF_KEY MIGRATE message is used to dynamically update
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locator(s) of a given IPsec security association.
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This feature is required, for instance, in a Mobile IPv6
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environment with IPsec configuration where mobile nodes
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change their attachment point to the Internet. Detail
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information can be found in the internet-draft
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<draft-sugimoto-mip6-pfkey-migrate>.
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If unsure, say N.
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