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authorStefan Schmidt <stefan@osg.samsung.com>2015-12-09 22:46:28 +0100
committerMarcel Holtmann <marcel@holtmann.org>2015-12-10 01:25:25 +0100
commit43f26e17d02f5c772cedc3ee16b192ed79764474 (patch)
treeda2a89ec0536b0ec1038bf9259fb9357db30ee2d /net/6lowpan/nhc_ghc_ext_route.c
parent2f4799478c94928802c79edd12711a0e9e8b6f1b (diff)
downloadlinux-stericsson-43f26e17d02f5c772cedc3ee16b192ed79764474.tar.gz
6lowpan: add nhc module for GHC routing extension header detection
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>
Diffstat (limited to 'net/6lowpan/nhc_ghc_ext_route.c')
-rw-r--r--net/6lowpan/nhc_ghc_ext_route.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/6lowpan/nhc_ghc_ext_route.c b/net/6lowpan/nhc_ghc_ext_route.c
new file mode 100644
index 000000000000..d7e5bd791c62
--- /dev/null
+++ b/net/6lowpan/nhc_ghc_ext_route.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_EXT_ROUTE_IDLEN 1
+#define LOWPAN_GHC_EXT_ROUTE_ID_0 0xb2
+#define LOWPAN_GHC_EXT_ROUTE_MASK_0 0xfe
+
+static void route_ghid_setup(struct lowpan_nhc *nhc)
+{
+ nhc->id[0] = LOWPAN_GHC_EXT_ROUTE_ID_0;
+ nhc->idmask[0] = LOWPAN_GHC_EXT_ROUTE_MASK_0;
+}
+
+LOWPAN_NHC(ghc_ext_route, "RFC7400 Routing Extension Header", NEXTHDR_ROUTING,
+ 0, route_ghid_setup, LOWPAN_GHC_EXT_ROUTE_IDLEN, NULL, NULL);
+
+module_lowpan_nhc(ghc_ext_route);
+MODULE_DESCRIPTION("6LoWPAN generic header routing extension compression");
+MODULE_LICENSE("GPL");