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net: ipv6: add support for rpl sr exthdr

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This patch adds rpl source routing receive handling. Everything works
only if sysconf "rpl_seg_enabled" and source routing is enabled. Mostly
the same behaviour as IPv6 segmentation routing. To handle compression
and uncompression a rpl.c file is created which contains the necessary
functionality. The receive handling will also care about IPv6
encapsulated so far it's specified as possible nexthdr in RFC 6554.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Aring
2020-03-27 18:00:20 -04:00
committed by David S. Miller
parent f37c605936
commit 8610c7c6e3
7 changed files with 370 additions and 3 deletions
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include/linux/ipv6.h
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@@ -74,6 +74,7 @@ struct ipv6_devconf {
__u32 addr_gen_mode;
__s32 disable_policy;
__s32 ndisc_tclass;
__s32 rpl_seg_enabled;
struct ctl_table_header *sysctl_header;
};