linux-stable/net/6lowpan/nhc_hop.c
Alexander Aring 31264f9563 net: 6lowpan: use array for find nhc id
This patch will remove the complete overengineered and overthinking rb data
structure for looking up the nhc by nhcid. Instead we using the existing
nhc next header array and iterate over it. It works now for 1 byte values
only. However there are only 1 byte nhc id values currently
supported and IANA also does not specify large than 1 byte values yet.
If there are 2 byte values for nhc ids specified we can revisit this
data structure and add support for it.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Reviewed-by: Stefan Schmidt <stefan@datenfreihafen.org>
Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220428030534.3220410-3-aahringo@redhat.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
2022-06-09 21:53:28 +02:00

16 lines
476 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* 6LoWPAN IPv6 Hop-by-Hop Options Header compression according to RFC6282
*/
#include "nhc.h"
#define LOWPAN_NHC_HOP_ID_0 0xe0
#define LOWPAN_NHC_HOP_MASK_0 0xfe
LOWPAN_NHC(nhc_hop, "RFC6282 Hop-by-Hop Options", NEXTHDR_HOP, 0,
LOWPAN_NHC_HOP_ID_0, LOWPAN_NHC_HOP_MASK_0, NULL, NULL);
module_lowpan_nhc(nhc_hop);
MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Hop-by-Hop Options compression");
MODULE_LICENSE("GPL");