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authorDavid Lebrun <david.lebrun@uclouvain.be>2016-11-08 14:57:41 +0100
committerDavid S. Miller <davem@davemloft.net>2016-11-09 20:40:06 -0500
commit6c8702c60b88651072460f3f4026c7dfe2521d12 (patch)
tree2ff901e3824bb605585e76c43739aa9b4b90ec39 /include/linux/seg6_iptunnel.h
parent915d7e5e5930b4f01d0971d93b9b25ed17d221aa (diff)
ipv6: sr: add support for SRH encapsulation and injection with lwtunnels
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>
Diffstat (limited to 'include/linux/seg6_iptunnel.h')
-rw-r--r--include/linux/seg6_iptunnel.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/seg6_iptunnel.h b/include/linux/seg6_iptunnel.h
new file mode 100644
index 000000000000..5377cf6a5a02
--- /dev/null
+++ b/include/linux/seg6_iptunnel.h
@@ -0,0 +1,6 @@
+#ifndef _LINUX_SEG6_IPTUNNEL_H
+#define _LINUX_SEG6_IPTUNNEL_H
+
+#include <uapi/linux/seg6_iptunnel.h>
+
+#endif