From 70cc86752e59ec26fcd31679b1eef23e8cb4b516 Mon Sep 17 00:00:00 2001 From: Stefan Schmidt Date: Wed, 9 Dec 2015 22:46:24 +0100 Subject: 6lowpan: add nhc module for GHC UDP detection Acked-by: Jukka Rissanen Signed-off-by: Stefan Schmidt Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig index 1bd49eb..94d5178 100644 --- a/net/6lowpan/Kconfig +++ b/net/6lowpan/Kconfig @@ -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 diff --git a/net/6lowpan/Makefile b/net/6lowpan/Makefile index ba20e01..5e4f2f3 100644 --- a/net/6lowpan/Makefile +++ b/net/6lowpan/Makefile @@ -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 diff --git a/net/6lowpan/nhc_ghc_udp.c b/net/6lowpan/nhc_ghc_udp.c new file mode 100644 index 0000000..17beefa --- /dev/null +++ b/net/6lowpan/nhc_ghc_udp.c @@ -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"); -- cgit v0.10.2