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6lowpan: add nhc module for GHC fragmentation extension header detection

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Acked-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Stefan Schmidt
2015-12-09 22:46:27 +01:00
committed by Marcel Holtmann
parent 20616a5a1e
commit 2f4799478c
3 changed files with 35 additions and 0 deletions
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28
net/6lowpan/nhc_ghc_ext_frag.c Normal file
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/*
* 6LoWPAN Extension Header compression according to RFC7400
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include "nhc.h"
#define LOWPAN_GHC_EXT_FRAG_IDLEN 1
#define LOWPAN_GHC_EXT_FRAG_ID_0 0xb4
#define LOWPAN_GHC_EXT_FRAG_MASK_0 0xfe
static void frag_ghid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_GHC_EXT_FRAG_ID_0;
nhc->idmask[0] = LOWPAN_GHC_EXT_FRAG_MASK_0;
}
LOWPAN_NHC(ghc_ext_frag, "RFC7400 Fragmentation Extension Header",
NEXTHDR_FRAGMENT, 0, frag_ghid_setup,
LOWPAN_GHC_EXT_FRAG_IDLEN, NULL, NULL);
module_lowpan_nhc(ghc_ext_frag);
MODULE_DESCRIPTION("6LoWPAN generic header fragmentation extension compression");
MODULE_LICENSE("GPL");