[PATCH bluetooth-next 2/4] 6lowpan: add nhc module for GHC extension header detection
From: Stefan Schmidt <hidden>
Date: 2015-09-18 11:52:46
Subsystem:
6lowpan generic (btle/ieee 802.15.4), networking [general], the rest · Maintainers:
Alexander Aring, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Signed-off-by: Stefan Schmidt <redacted> --- net/6lowpan/Kconfig | 5 +++++ net/6lowpan/Makefile | 3 +++ net/6lowpan/nhc_ghc_extension_header.c | 27 +++++++++++++++++++++++++++ 3 files changed, 35 insertions(+) create mode 100644 net/6lowpan/nhc_ghc_extension_header.c
diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig
index 6af7a46..f541f50 100644
--- a/net/6lowpan/Kconfig
+++ b/net/6lowpan/Kconfig@@ -59,4 +59,9 @@ config 6LOWPAN_NHC_UDP ---help--- 6LoWPAN IPv6 UDP Header compression according to RFC6282. +config 6LOWPAN_GHC_EXTENSION_HEADER + tristate "GHC Extension Header Support" + default y + ---help--- + endif
diff --git a/net/6lowpan/Makefile b/net/6lowpan/Makefile
index c6ffc55..2b42bd0 100644
--- a/net/6lowpan/Makefile
+++ b/net/6lowpan/Makefile@@ -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_EXTENSION_HEADER) += nhc_ghc_extension_header.o
diff --git a/net/6lowpan/nhc_ghc_extension_header.c b/net/6lowpan/nhc_ghc_extension_header.c
new file mode 100644
index 0000000..eeeabfa
--- /dev/null
+++ b/net/6lowpan/nhc_ghc_extension_header.c@@ -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_EXTENSION_HEADER_IDLEN 1 +#define LOWPAN_GHC_EXTENSION_HEADER_ID_0 0xb0 +#define LOWPAN_GHC_EXTENSION_HEADER_MASK_0 0xf8 + +static void ext_ghid_setup(struct lowpan_nhc *nhc) +{ + nhc->id[0] = LOWPAN_GHC_EXTENSION_HEADER_ID_0; + nhc->idmask[0] = LOWPAN_GHC_EXTENSION_HEADER_MASK_0; +} + +LOWPAN_NHC(ghc_extension_header, "RFC7400 Extension Header", NEXTHDR_HOP, 0, + ext_ghid_setup, LOWPAN_GHC_EXTENSION_HEADER_IDLEN, NULL, NULL); + +module_lowpan_nhc(ghc_extension_header); +MODULE_DESCRIPTION("6LoWPAN generic header RFC7400 Extension Header compression"); +MODULE_LICENSE("GPL");
--
2.4.3