From c39da3bb5b978ca03f1702c99965f3db1204516a Mon Sep 17 00:00:00 2001 From: Stefan Schmidt Date: Wed, 9 Dec 2015 22:46:25 +0100 Subject: [PATCH] 6lowpan: add nhc module for GHC ICMPv6 detection Acked-by: Jukka Rissanen Signed-off-by: Stefan Schmidt Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- net/6lowpan/Kconfig | 5 +++++ net/6lowpan/Makefile | 1 + net/6lowpan/nhc_ghc_icmpv6.c | 27 +++++++++++++++++++++++++++ 3 files changed, 33 insertions(+) create mode 100644 net/6lowpan/nhc_ghc_icmpv6.c diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig index 94d517893432..0a3f5a8b0f6d 100644 --- a/net/6lowpan/Kconfig +++ b/net/6lowpan/Kconfig @@ -70,4 +70,9 @@ config 6LOWPAN_GHC_UDP ---help--- 6LoWPAN IPv6 UDP generic header compression according to RFC7400. +config 6LOWPAN_GHC_ICMPV6 + tristate "GHC ICMPv6 Support" + ---help--- + 6LoWPAN IPv6 ICMPv6 generic header compression according to RFC7400. + endif diff --git a/net/6lowpan/Makefile b/net/6lowpan/Makefile index 5e4f2f3a2f57..86af3fd141a1 100644 --- a/net/6lowpan/Makefile +++ b/net/6lowpan/Makefile @@ -14,3 +14,4 @@ obj-$(CONFIG_6LOWPAN_NHC_UDP) += nhc_udp.o #rfc7400 ghcs obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_HOP) += nhc_ghc_ext_hop.o obj-$(CONFIG_6LOWPAN_GHC_UDP) += nhc_ghc_udp.o +obj-$(CONFIG_6LOWPAN_GHC_ICMPV6) += nhc_ghc_icmpv6.o diff --git a/net/6lowpan/nhc_ghc_icmpv6.c b/net/6lowpan/nhc_ghc_icmpv6.c new file mode 100644 index 000000000000..32e7c2c66bbc --- /dev/null +++ b/net/6lowpan/nhc_ghc_icmpv6.c @@ -0,0 +1,27 @@ +/* + * 6LoWPAN ICMPv6 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_ICMPV6_IDLEN 1 +#define LOWPAN_GHC_ICMPV6_ID_0 0xdf +#define LOWPAN_GHC_ICMPV6_MASK_0 0xff + +static void icmpv6_ghid_setup(struct lowpan_nhc *nhc) +{ + nhc->id[0] = LOWPAN_GHC_ICMPV6_ID_0; + nhc->idmask[0] = LOWPAN_GHC_ICMPV6_MASK_0; +} + +LOWPAN_NHC(ghc_icmpv6, "RFC7400 ICMPv6", NEXTHDR_ICMP, 0, + icmpv6_ghid_setup, LOWPAN_GHC_ICMPV6_IDLEN, NULL, NULL); + +module_lowpan_nhc(ghc_icmpv6); +MODULE_DESCRIPTION("6LoWPAN generic header ICMPv6 compression"); +MODULE_LICENSE("GPL"); -- 2.20.1