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6lowpan: add nhc module for GHC UDP 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 22:46:24 +01:00 committed by Marcel Holtmann
parent 7e568f50c1
commit 70cc86752e
3 changed files with 33 additions and 0 deletions
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5
net/6lowpan/Kconfig
View file

@ -65,4 +65,9 @@ config 6LOWPAN_GHC_EXT_HDR_HOP
6LoWPAN IPv6 Hop-by-Hop option generic header compression according
to RFC7400.
config 6LOWPAN_GHC_UDP
tristate "GHC UDP Support"
---help---
6LoWPAN IPv6 UDP generic header compression according to RFC7400.
endif

1
net/6lowpan/Makefile
View file

@ -13,3 +13,4 @@ obj-$(CONFIG_6LOWPAN_NHC_UDP) += nhc_udp.o
#rfc7400 ghcs
obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_HOP) += nhc_ghc_ext_hop.o
obj-$(CONFIG_6LOWPAN_GHC_UDP) += nhc_ghc_udp.o

27
net/6lowpan/nhc_ghc_udp.c Normal file
View file

@ -0,0 +1,27 @@
/*
* 6LoWPAN UDP 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_UDP_IDLEN 1
#define LOWPAN_GHC_UDP_ID_0 0xd0
#define LOWPAN_GHC_UDP_MASK_0 0xf8
static void udp_ghid_setup(struct lowpan_nhc *nhc)
{
nhc->id[0] = LOWPAN_GHC_UDP_ID_0;
nhc->idmask[0] = LOWPAN_GHC_UDP_MASK_0;
}
LOWPAN_NHC(ghc_udp, "RFC7400 UDP", NEXTHDR_UDP, 0,
udp_ghid_setup, LOWPAN_GHC_UDP_IDLEN, NULL, NULL);
module_lowpan_nhc(ghc_udp);
MODULE_DESCRIPTION("6LoWPAN generic header UDP compression");
MODULE_LICENSE("GPL");