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Commit 2f479947 authored by Stefan Schmidt's avatar Stefan Schmidt Committed by Marcel Holtmann
Browse files

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



Acked-by: default avatarJukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: default avatarStefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: default avatarAlexander Aring <alex.aring@gmail.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 20616a5a

net/6lowpan/Kconfig

+6 −0
Original line number Diff line number Diff line
@@ -81,4 +81,10 @@ config 6LOWPAN_GHC_EXT_HDR_DEST 
	  6LoWPAN IPv6 destination option generic header compression according

	  to RFC7400.



config 6LOWPAN_GHC_EXT_HDR_FRAG

	tristate "GHC Fragmentation Options Header Support"

	---help---

	  6LoWPAN IPv6 fragmentation option generic header compression

	  according to RFC7400.



endif

net/6lowpan/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -16,3 +16,4 @@ obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_HOP) += nhc_ghc_ext_hop.o 
obj-$(CONFIG_6LOWPAN_GHC_UDP) += nhc_ghc_udp.o

obj-$(CONFIG_6LOWPAN_GHC_ICMPV6) += nhc_ghc_icmpv6.o

obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_DEST) += nhc_ghc_ext_dest.o

obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_FRAG) += nhc_ghc_ext_frag.o

net/6lowpan/nhc_ghc_ext_frag.c

0 → 100644
+28 −0
Original line number Diff line number Diff line 
/*

 *	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");