GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-28 01:21:58 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

ipv6: sr: add support for SRH encapsulation and injection with lwtunnels

Browse source 
This patch creates a new type of interfaceless lightweight tunnel (SEG6),
enabling the encapsulation and injection of SRH within locally emitted
packets and forwarded packets.

>From a configuration viewpoint, a seg6 tunnel would be configured as follows:

  ip -6 ro ad fc00::1/128 encap seg6 mode encap segs fc42::1,fc42::2,fc42::3 dev eth0

Any packet whose destination address is fc00::1 would thus be encapsulated
within an outer IPv6 header containing the SRH with three segments, and would
actually be routed to the first segment of the list. If `mode inline' was
specified instead of `mode encap', then the SRH would be directly inserted
after the IPv6 header without outer encapsulation.

The inline mode is only available if CONFIG_IPV6_SEG6_INLINE is enabled. This
feature was made configurable because direct header insertion may break
several mechanisms such as PMTUD or IPSec AH.

Signed-off-by: David Lebrun <david.lebrun@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Lebrun 2016-11-08 14:57:41 +01:00 • committed by David S. Miller
parent 915d7e5e59
commit 6c8702c60b
9 changed files with 526 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/linux/seg6_iptunnel.h Normal file
View file

@ -0,0 +1,6 @@
#ifndef _LINUX_SEG6_IPTUNNEL_H
#define _LINUX_SEG6_IPTUNNEL_H
#include <uapi/linux/seg6_iptunnel.h>
#endif