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6lowpan: add nhc module for GHC hop-by-hopextension 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 22:46:23 +01:00 committed by Marcel Holtmann
parent 5e5c08cbee
commit 7e568f50c1
3 changed files with 36 additions and 0 deletions
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6
net/6lowpan/Kconfig
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@ -59,4 +59,10 @@ config 6LOWPAN_NHC_UDP
---help---
6LoWPAN IPv6 UDP Header compression according to RFC6282.
config 6LOWPAN_GHC_EXT_HDR_HOP
tristate "GHC Hop-by-Hop Options Header Support"
---help---
6LoWPAN IPv6 Hop-by-Hop option generic header compression according
to RFC7400.
endif

3
net/6lowpan/Makefile
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@ -10,3 +10,6 @@ obj-$(CONFIG_6LOWPAN_NHC_IPV6) += nhc_ipv6.o
obj-$(CONFIG_6LOWPAN_NHC_MOBILITY) += nhc_mobility.o
obj-$(CONFIG_6LOWPAN_NHC_ROUTING) += nhc_routing.o
obj-$(CONFIG_6LOWPAN_NHC_UDP) += nhc_udp.o
#rfc7400 ghcs
obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_HOP) += nhc_ghc_ext_hop.o

27
net/6lowpan/nhc_ghc_ext_hop.c Normal file
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@ -0,0 +1,27 @@
/*
* 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_HOP_IDLEN 1
#define LOWPAN_GHC_EXT_HOP_ID_0 0xb0
#define LOWPAN_GHC_EXT_HOP_MASK_0 0xfe
static void hop_ghid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_GHC_EXT_HOP_ID_0;
nhc->idmask[0] = LOWPAN_GHC_EXT_HOP_MASK_0;
}
LOWPAN_NHC(ghc_ext_hop, "RFC7400 Hop-by-Hop Extension Header", NEXTHDR_HOP, 0,
hop_ghid_setup, LOWPAN_GHC_EXT_HOP_IDLEN, NULL, NULL);
module_lowpan_nhc(ghc_ext_hop);
MODULE_DESCRIPTION("6LoWPAN generic header hop-by-hop extension compression");
MODULE_LICENSE("GPL");