Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) # IPv6 configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #   IPv6 as module will cause a CRASH if you try to unload it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) menuconfig IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 	tristate "The IPv6 protocol"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 	  Support for IP version 6 (IPv6).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	  For general information about IPv6, see
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	  <https://en.wikipedia.org/wiki/IPv6>.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	  For specific information about IPv6 under Linux, see
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	  Documentation/networking/ipv6.rst and read the HOWTO at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	  <https://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	  To compile this protocol support as a module, choose M here: the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	  module will be called ipv6.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) if IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) config IPV6_ROUTER_PREF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	bool "IPv6: Router Preference (RFC 4191) support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	  Router Preference is an optional extension to the Router
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	  Advertisement message which improves the ability of hosts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	  to pick an appropriate router, especially when the hosts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	  are placed in a multi-homed network.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) config IPV6_ROUTE_INFO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	bool "IPv6: Route Information (RFC 4191) support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	depends on IPV6_ROUTER_PREF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	  Support of Route Information.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) config IPV6_OPTIMISTIC_DAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	bool "IPv6: Enable RFC 4429 Optimistic DAD"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	  Support for optimistic Duplicate Address Detection. It allows for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	  autoconfigured addresses to be used more quickly.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) config INET6_AH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	tristate "IPv6: AH transformation"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	select XFRM_AH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	  Support for IPsec AH (Authentication Header).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	  AH can be used with various authentication algorithms.  Besides
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	  enabling AH support itself, this option enables the generic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	  implementations of the algorithms that RFC 8221 lists as MUST be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	  implemented.  If you need any other algorithms, you'll need to enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	  them in the crypto API.  You should also enable accelerated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	  implementations of any needed algorithms when available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	  If unsure, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) config INET6_ESP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	tristate "IPv6: ESP transformation"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	select XFRM_ESP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	  Support for IPsec ESP (Encapsulating Security Payload).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	  ESP can be used with various encryption and authentication algorithms.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	  Besides enabling ESP support itself, this option enables the generic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	  implementations of the algorithms that RFC 8221 lists as MUST be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	  implemented.  If you need any other algorithms, you'll need to enable
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	  them in the crypto API.  You should also enable accelerated
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	  implementations of any needed algorithms when available.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	  If unsure, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) config INET6_ESP_OFFLOAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	tristate "IPv6: ESP transformation offload"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	depends on INET6_ESP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	select XFRM_OFFLOAD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	  Support for ESP transformation offload. This makes sense
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	  only if this system really does IPsec and want to do it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	  with high throughput. A typical desktop system does not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	  need it, even if it does IPsec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) config INET6_ESPINTCP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	bool "IPv6: ESP in TCP encapsulation (RFC 8229)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	depends on XFRM && INET6_ESP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	select STREAM_PARSER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	select NET_SOCK_MSG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	select XFRM_ESPINTCP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	  Support for RFC 8229 encapsulation of ESP and IKE over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	  TCP/IPv6 sockets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) config INET6_IPCOMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	tristate "IPv6: IPComp transformation"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	select INET6_XFRM_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	select XFRM_IPCOMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	  Support for IP Payload Compression Protocol (IPComp) (RFC3173),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	  typically needed for IPsec.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	  If unsure, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) config IPV6_MIP6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	tristate "IPv6: Mobility"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	select XFRM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	  Support for IPv6 Mobility described in RFC 3775.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) config IPV6_ILA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	tristate "IPv6: Identifier Locator Addressing (ILA)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	depends on NETFILTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	select DST_CACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	select LWTUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	  Support for IPv6 Identifier Locator Addressing (ILA).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	  ILA is a mechanism to do network virtualization without
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	  encapsulation. The basic concept of ILA is that we split an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	  IPv6 address into a 64 bit locator and 64 bit identifier. The
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	  identifier is the identity of an entity in communication
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	  ("who") and the locator expresses the location of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	  entity ("where").
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	  ILA can be configured using the "encap ila" option with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	  "ip -6 route" command. ILA is described in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	  https://tools.ietf.org/html/draft-herbert-nvo3-ila-00.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) config INET6_XFRM_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	select INET6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) config INET6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) config IPV6_VTI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) tristate "Virtual (secure) IPv6: tunneling"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	select IPV6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	select NET_IP_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	select XFRM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	Tunneling means encapsulating data of one protocol type within
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	another protocol and sending it over a channel that understands the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	encapsulating protocol. This can be used with xfrm mode tunnel to give
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	the notion of a secure tunnel for IPSEC and then use routing protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	on top.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) config IPV6_SIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	select INET_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	select NET_IP_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	select IPV6_NDISC_NODETYPE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	default y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	  Tunneling means encapsulating data of one protocol type within
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	  another protocol and sending it over a channel that understands the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	  encapsulating protocol. This driver implements encapsulation of IPv6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	  into IPv4 packets. This is useful if you want to connect two IPv6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	  networks over an IPv4-only path.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	  Saying M here will produce a module called sit. If unsure, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) config IPV6_SIT_6RD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	bool "IPv6: IPv6 Rapid Deployment (6RD)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	depends on IPV6_SIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	  IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	  mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	  deploy IPv6 unicast service to IPv4 sites to which it provides
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	  customer premise equipment.  Like 6to4, it utilizes stateless IPv6 in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	  IPv4 encapsulation in order to transit IPv4-only network
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	  infrastructure.  Unlike 6to4, a 6rd service provider uses an IPv6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	  prefix of its own in place of the fixed 6to4 prefix.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	  With this option enabled, the SIT driver offers 6rd functionality by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	  providing additional ioctl API to configure the IPv6 Prefix for in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	  stead of static 2002::/16 for 6to4.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) config IPV6_NDISC_NODETYPE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) config IPV6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	select INET6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	select DST_CACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	select GRO_CELLS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	  Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	  RFC 2473.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) config IPV6_GRE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	tristate "IPv6: GRE tunnel"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	select IPV6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	select NET_IP_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	depends on NET_IPGRE_DEMUX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	  Tunneling means encapsulating data of one protocol type within
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	  another protocol and sending it over a channel that understands the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	  encapsulating protocol. This particular tunneling driver implements
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	  GRE (Generic Routing Encapsulation) and at this time allows
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	  encapsulating of IPv4 or IPv6 over existing IPv6 infrastructure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	  This driver is useful if the other endpoint is a Cisco router: Cisco
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	  likes GRE much better than the other Linux tunneling driver ("IP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	  tunneling" above). In addition, GRE allows multicast redistribution
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	  through the tunnel.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	  Saying M here will produce a module called ip6_gre. If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) config IPV6_FOU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	default NET_FOU && IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) config IPV6_FOU_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	tristate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	default NET_FOU_IP_TUNNELS && IPV6_FOU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	select IPV6_TUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) config IPV6_MULTIPLE_TABLES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	bool "IPv6: Multiple Routing Tables"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	select FIB_RULES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	  Support multiple routing tables.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) config IPV6_SUBTREES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	bool "IPv6: source address based routing"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	depends on IPV6_MULTIPLE_TABLES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	  Enable routing by source address or prefix.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	  The destination address is still the primary routing key, so mixing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	  normal and source prefix specific routes in the same routing table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	  may sometimes lead to unintended routing behavior.  This can be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	  avoided by defining different routing tables for the normal and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	  source prefix specific routes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) config IPV6_MROUTE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	bool "IPv6: multicast routing"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	depends on IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	select IP_MROUTE_COMMON
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	  Support for IPv6 multicast forwarding.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) config IPV6_MROUTE_MULTIPLE_TABLES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	bool "IPv6: multicast policy routing"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	depends on IPV6_MROUTE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	select FIB_RULES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	  Normally, a multicast router runs a userspace daemon and decides
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	  what to do with a multicast packet based on the source and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	  destination addresses. If you say Y here, the multicast router
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	  will also be able to take interfaces and packet marks into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	  account and run multiple instances of userspace daemons
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	  simultaneously, each one handling a single table.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) config IPV6_PIMSM_V2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	bool "IPv6: PIM-SM version 2 support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 	depends on IPV6_MROUTE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 	  Support for IPv6 PIM multicast routing protocol PIM-SMv2.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) config IPV6_SEG6_LWTUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	bool "IPv6: Segment Routing Header encapsulation support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 	depends on IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	select LWTUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 	select DST_CACHE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	select IPV6_MULTIPLE_TABLES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	  Support for encapsulation of packets within an outer IPv6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	  header and a Segment Routing Header using the lightweight
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	  tunnels mechanism. Also enable support for advanced local
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	  processing of SRv6 packets based on their active segment.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) config IPV6_SEG6_HMAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	bool "IPv6: Segment Routing HMAC support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 	depends on IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	select CRYPTO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	select CRYPTO_HMAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	select CRYPTO_SHA1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	select CRYPTO_SHA256
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	  Support for HMAC signature generation and verification
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	  of SR-enabled packets.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) config IPV6_SEG6_BPF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	depends on IPV6_SEG6_LWTUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	depends on IPV6 = y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) config IPV6_RPL_LWTUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	bool "IPv6: RPL Source Routing Header support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	depends on IPV6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	select LWTUNNEL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	  Support for RFC6554 RPL Source Routing Header using the lightweight
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	  tunnels mechanism.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) endif # IPV6