forked from Minki/linux
f26e9b2c0b
Steffen Klassert says: ==================== pull request (net-next): ipsec-next 2020-05-29 1) Add IPv6 encapsulation support for ESP over UDP and TCP. From Sabrina Dubroca. 2) Remove unneeded reference when initializing xfrm interfaces. From Nicolas Dichtel. 3) Remove some indirect calls from the state_afinfo. From Florian Westphal. Please note that this pull request has two merge conflicts between commit:0c922a4850("xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish") from Linus' tree and commit:2ab6096db2("xfrm: remove output_finish indirection from xfrm_state_afinfo") from the ipsec-next tree. and between commit:3986912f6a("ipv6: move SIOCADDRT and SIOCDELRT handling into ->compat_ioctl") from the net-next tree and commit:0146dca70b("xfrm: add support for UDPv6 encapsulation of ESP") from the ipsec-next tree. Both conflicts can be resolved as done in linux-next. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
329 lines
8.9 KiB
Plaintext
329 lines
8.9 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# IPv6 configuration
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#
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# IPv6 as module will cause a CRASH if you try to unload it
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menuconfig IPV6
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tristate "The IPv6 protocol"
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default y
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---help---
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Support for IP version 6 (IPv6).
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For general information about IPv6, see
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<https://en.wikipedia.org/wiki/IPv6>.
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For specific information about IPv6 under Linux, see
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Documentation/networking/ipv6.rst and read the HOWTO at
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<http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/>
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To compile this protocol support as a module, choose M here: the
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module will be called ipv6.
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if IPV6
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config IPV6_ROUTER_PREF
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bool "IPv6: Router Preference (RFC 4191) support"
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---help---
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Router Preference is an optional extension to the Router
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Advertisement message which improves the ability of hosts
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to pick an appropriate router, especially when the hosts
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are placed in a multi-homed network.
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If unsure, say N.
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config IPV6_ROUTE_INFO
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bool "IPv6: Route Information (RFC 4191) support"
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depends on IPV6_ROUTER_PREF
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---help---
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Support of Route Information.
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If unsure, say N.
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config IPV6_OPTIMISTIC_DAD
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bool "IPv6: Enable RFC 4429 Optimistic DAD"
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---help---
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Support for optimistic Duplicate Address Detection. It allows for
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autoconfigured addresses to be used more quickly.
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If unsure, say N.
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config INET6_AH
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tristate "IPv6: AH transformation"
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select XFRM_ALGO
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select CRYPTO
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select CRYPTO_HMAC
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select CRYPTO_MD5
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select CRYPTO_SHA1
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---help---
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Support for IPsec AH.
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If unsure, say Y.
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config INET6_ESP
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tristate "IPv6: ESP transformation"
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select XFRM_ALGO
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select CRYPTO
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select CRYPTO_AUTHENC
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select CRYPTO_HMAC
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select CRYPTO_MD5
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select CRYPTO_CBC
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select CRYPTO_SHA1
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select CRYPTO_DES
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select CRYPTO_ECHAINIV
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---help---
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Support for IPsec ESP.
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If unsure, say Y.
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config INET6_ESP_OFFLOAD
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tristate "IPv6: ESP transformation offload"
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depends on INET6_ESP
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select XFRM_OFFLOAD
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default n
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---help---
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Support for ESP transformation offload. This makes sense
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only if this system really does IPsec and want to do it
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with high throughput. A typical desktop system does not
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need it, even if it does IPsec.
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If unsure, say N.
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config INET6_ESPINTCP
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bool "IPv6: ESP in TCP encapsulation (RFC 8229)"
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depends on XFRM && INET6_ESP
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select STREAM_PARSER
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select NET_SOCK_MSG
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select XFRM_ESPINTCP
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help
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Support for RFC 8229 encapsulation of ESP and IKE over
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TCP/IPv6 sockets.
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If unsure, say N.
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config INET6_IPCOMP
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tristate "IPv6: IPComp transformation"
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select INET6_XFRM_TUNNEL
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select XFRM_IPCOMP
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---help---
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Support for IP Payload Compression Protocol (IPComp) (RFC3173),
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typically needed for IPsec.
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If unsure, say Y.
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config IPV6_MIP6
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tristate "IPv6: Mobility"
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select XFRM
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---help---
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Support for IPv6 Mobility described in RFC 3775.
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If unsure, say N.
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config IPV6_ILA
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tristate "IPv6: Identifier Locator Addressing (ILA)"
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depends on NETFILTER
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select DST_CACHE
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select LWTUNNEL
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---help---
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Support for IPv6 Identifier Locator Addressing (ILA).
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ILA is a mechanism to do network virtualization without
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encapsulation. The basic concept of ILA is that we split an
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IPv6 address into a 64 bit locator and 64 bit identifier. The
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identifier is the identity of an entity in communication
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("who") and the locator expresses the location of the
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entity ("where").
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ILA can be configured using the "encap ila" option with
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"ip -6 route" command. ILA is described in
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https://tools.ietf.org/html/draft-herbert-nvo3-ila-00.
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If unsure, say N.
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config INET6_XFRM_TUNNEL
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tristate
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select INET6_TUNNEL
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default n
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config INET6_TUNNEL
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tristate
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default n
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config IPV6_VTI
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tristate "Virtual (secure) IPv6: tunneling"
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select IPV6_TUNNEL
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select NET_IP_TUNNEL
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select XFRM
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---help---
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Tunneling means encapsulating data of one protocol type within
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another protocol and sending it over a channel that understands the
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encapsulating protocol. This can be used with xfrm mode tunnel to give
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the notion of a secure tunnel for IPSEC and then use routing protocol
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on top.
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config IPV6_SIT
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tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
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select INET_TUNNEL
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select NET_IP_TUNNEL
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select IPV6_NDISC_NODETYPE
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default y
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---help---
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Tunneling means encapsulating data of one protocol type within
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another protocol and sending it over a channel that understands the
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encapsulating protocol. This driver implements encapsulation of IPv6
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into IPv4 packets. This is useful if you want to connect two IPv6
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networks over an IPv4-only path.
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Saying M here will produce a module called sit. If unsure, say Y.
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config IPV6_SIT_6RD
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bool "IPv6: IPv6 Rapid Deployment (6RD)"
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depends on IPV6_SIT
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default n
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---help---
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IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
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mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly
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deploy IPv6 unicast service to IPv4 sites to which it provides
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customer premise equipment. Like 6to4, it utilizes stateless IPv6 in
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IPv4 encapsulation in order to transit IPv4-only network
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infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6
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prefix of its own in place of the fixed 6to4 prefix.
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With this option enabled, the SIT driver offers 6rd functionality by
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providing additional ioctl API to configure the IPv6 Prefix for in
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stead of static 2002::/16 for 6to4.
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If unsure, say N.
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config IPV6_NDISC_NODETYPE
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bool
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config IPV6_TUNNEL
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tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
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select INET6_TUNNEL
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select DST_CACHE
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select GRO_CELLS
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---help---
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Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
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RFC 2473.
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If unsure, say N.
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config IPV6_GRE
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tristate "IPv6: GRE tunnel"
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select IPV6_TUNNEL
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select NET_IP_TUNNEL
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depends on NET_IPGRE_DEMUX
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---help---
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Tunneling means encapsulating data of one protocol type within
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another protocol and sending it over a channel that understands the
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encapsulating protocol. This particular tunneling driver implements
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GRE (Generic Routing Encapsulation) and at this time allows
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encapsulating of IPv4 or IPv6 over existing IPv6 infrastructure.
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This driver is useful if the other endpoint is a Cisco router: Cisco
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likes GRE much better than the other Linux tunneling driver ("IP
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tunneling" above). In addition, GRE allows multicast redistribution
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through the tunnel.
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Saying M here will produce a module called ip6_gre. If unsure, say N.
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config IPV6_FOU
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tristate
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default NET_FOU && IPV6
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config IPV6_FOU_TUNNEL
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tristate
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default NET_FOU_IP_TUNNELS && IPV6_FOU
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select IPV6_TUNNEL
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config IPV6_MULTIPLE_TABLES
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bool "IPv6: Multiple Routing Tables"
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select FIB_RULES
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---help---
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Support multiple routing tables.
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config IPV6_SUBTREES
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bool "IPv6: source address based routing"
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depends on IPV6_MULTIPLE_TABLES
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---help---
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Enable routing by source address or prefix.
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The destination address is still the primary routing key, so mixing
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normal and source prefix specific routes in the same routing table
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may sometimes lead to unintended routing behavior. This can be
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avoided by defining different routing tables for the normal and
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source prefix specific routes.
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If unsure, say N.
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config IPV6_MROUTE
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bool "IPv6: multicast routing"
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depends on IPV6
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select IP_MROUTE_COMMON
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---help---
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Support for IPv6 multicast forwarding.
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If unsure, say N.
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config IPV6_MROUTE_MULTIPLE_TABLES
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bool "IPv6: multicast policy routing"
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depends on IPV6_MROUTE
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select FIB_RULES
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help
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Normally, a multicast router runs a userspace daemon and decides
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what to do with a multicast packet based on the source and
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destination addresses. If you say Y here, the multicast router
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will also be able to take interfaces and packet marks into
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account and run multiple instances of userspace daemons
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simultaneously, each one handling a single table.
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If unsure, say N.
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config IPV6_PIMSM_V2
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bool "IPv6: PIM-SM version 2 support"
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depends on IPV6_MROUTE
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---help---
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Support for IPv6 PIM multicast routing protocol PIM-SMv2.
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If unsure, say N.
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config IPV6_SEG6_LWTUNNEL
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bool "IPv6: Segment Routing Header encapsulation support"
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depends on IPV6
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select LWTUNNEL
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select DST_CACHE
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select IPV6_MULTIPLE_TABLES
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---help---
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Support for encapsulation of packets within an outer IPv6
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header and a Segment Routing Header using the lightweight
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tunnels mechanism. Also enable support for advanced local
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processing of SRv6 packets based on their active segment.
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If unsure, say N.
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config IPV6_SEG6_HMAC
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bool "IPv6: Segment Routing HMAC support"
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depends on IPV6
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select CRYPTO_HMAC
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select CRYPTO_SHA1
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select CRYPTO_SHA256
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---help---
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Support for HMAC signature generation and verification
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of SR-enabled packets.
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If unsure, say N.
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config IPV6_SEG6_BPF
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def_bool y
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depends on IPV6_SEG6_LWTUNNEL
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depends on IPV6 = y
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config IPV6_RPL_LWTUNNEL
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bool "IPv6: RPL Source Routing Header support"
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depends on IPV6
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select LWTUNNEL
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---help---
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Support for RFC6554 RPL Source Routing Header using the lightweight
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tunnels mechanism.
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If unsure, say N.
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endif # IPV6
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