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authorDavid Lebrun <david.lebrun@uclouvain.be>2017-08-05 13:38:26 +0300
committerDavid S. Miller <davem@davemloft.net>2017-08-08 00:16:22 +0300
commitd1df6fd8a1d22d37cffa0075ab8ad423ce656777 (patch)
treedbdac3144dfdcf40f42aba921267e0c349ede55a /net/ipv6/Kconfig
parentb04c80d3a7e228cfb832cdb1c9ce8151f174669c (diff)
downloadlinux-d1df6fd8a1d22d37cffa0075ab8ad423ce656777.tar.xz
ipv6: sr: define core operations for seg6local lightweight tunnel
This patch implements a new type of lightweight tunnel named seg6local. A seg6local lwt is defined by a type of action and a set of parameters. The action represents the operation to perform on the packets matching the lwt's route, and is not necessarily an encapsulation. The set of parameters are arguments for the processing function. Each action is defined in a struct seg6_action_desc within seg6_action_table[]. This structure contains the action, mandatory attributes, the processing function, and a static headroom size required by the action. The mandatory attributes are encoded as a bitmask field. The static headroom is set to a non-zero value when the processing function always add a constant number of bytes to the skb (e.g. the header size for encapsulations). To facilitate rtnetlink-related operations such as parsing, fill_encap, and cmp_encap, each type of action parameter is associated to three function pointers, in seg6_action_params[]. All actions defined in seg6_local.h are detailed in [1]. [1] https://tools.ietf.org/html/draft-filsfils-spring-srv6-network-programming-01 Signed-off-by: David Lebrun <david.lebrun@uclouvain.be> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/Kconfig')
-rw-r--r--net/ipv6/Kconfig3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 50181a96923e..0d722396dce6 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -311,7 +311,8 @@ config IPV6_SEG6_LWTUNNEL
---help---
Support for encapsulation of packets within an outer IPv6
header and a Segment Routing Header using the lightweight
- tunnels mechanism.
+ tunnels mechanism. Also enable support for advanced local
+ processing of SRv6 packets based on their active segment.
If unsure, say N.