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authorTom Herbert <therbert@google.com>2014-09-17 12:25:56 -0700
committerDavid S. Miller <davem@davemloft.net>2014-09-19 17:15:31 -0400
commit23461551c00628c3f3fe9cf837bf53cf8f212b63 (patch)
treebd19f9ee79a5c2e8e899c6dfb25da38911515777 /net/ipv4/Kconfig
parentnet: Export inet_offloads and inet6_offloads (diff)
downloadlinux-dev-23461551c00628c3f3fe9cf837bf53cf8f212b63.tar.xz
linux-dev-23461551c00628c3f3fe9cf837bf53cf8f212b63.zip
fou: Support for foo-over-udp RX path
This patch provides a receive path for foo-over-udp. This allows direct encapsulation of IP protocols over UDP. The bound destination port is used to map to an IP protocol, and the XFRM framework (udp_encap_rcv) is used to receive encapsulated packets. Upon reception, the encapsulation header is logically removed (pointer to transport header is advanced) and the packet is reinjected into the receive path with the IP protocol indicated by the mapping. Netlink is used to configure FOU ports. The configuration information includes the port number to bind to and the IP protocol corresponding to that port. This should support GRE/UDP (http://tools.ietf.org/html/draft-yong-tsvwg-gre-in-udp-encap-02), as will as the other IP tunneling protocols (IPIP, SIT). Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/Kconfig')
-rw-r--r--net/ipv4/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index dbc10d84161f..84f710b7472a 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -311,6 +311,16 @@ config NET_UDP_TUNNEL
tristate
default n
+config NET_FOU
+ tristate "IP: Foo (IP protocols) over UDP"
+ select XFRM
+ select NET_UDP_TUNNEL
+ ---help---
+ Foo over UDP allows any IP protocol to be directly encapsulated
+ over UDP include tunnels (IPIP, GRE, SIT). By encapsulating in UDP
+ network mechanisms and optimizations for UDP (such as ECMP
+ and RSS) can be leveraged to provide better service.
+
config INET_AH
tristate "IP: AH transformation"
select XFRM_ALGO