aboutsummaryrefslogtreecommitdiffstats
path: root/net/6lowpan/nhc_ghc_ext_hop.c
diff options
context:
space:
mode:
authorStefan Schmidt <stefan@osg.samsung.com>2015-12-09 22:46:23 +0100
committerMarcel Holtmann <marcel@holtmann.org>2015-12-10 01:25:24 +0100
commit7e568f50c19c731938fee24a0f048f35120080f3 (patch)
treec8eebf5817e5457dcfc3687eafcccbe6a580074c /net/6lowpan/nhc_ghc_ext_hop.c
parent6lowpan: clarify Kconfig entries for upcoming GHC support (diff)
downloadlinux-dev-7e568f50c19c731938fee24a0f048f35120080f3.tar.xz
linux-dev-7e568f50c19c731938fee24a0f048f35120080f3.zip
6lowpan: add nhc module for GHC hop-by-hopextension 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 '')
-rw-r--r--net/6lowpan/nhc_ghc_ext_hop.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/6lowpan/nhc_ghc_ext_hop.c b/net/6lowpan/nhc_ghc_ext_hop.c
new file mode 100644
index 000000000000..baec86fd1974
--- /dev/null
+++ b/net/6lowpan/nhc_ghc_ext_hop.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_HOP_IDLEN 1
+#define LOWPAN_GHC_EXT_HOP_ID_0 0xb0
+#define LOWPAN_GHC_EXT_HOP_MASK_0 0xfe
+
+static void hop_ghid_setup(struct lowpan_nhc *nhc)
+{
+ nhc->id[0] = LOWPAN_GHC_EXT_HOP_ID_0;
+ nhc->idmask[0] = LOWPAN_GHC_EXT_HOP_MASK_0;
+}
+
+LOWPAN_NHC(ghc_ext_hop, "RFC7400 Hop-by-Hop Extension Header", NEXTHDR_HOP, 0,
+ hop_ghid_setup, LOWPAN_GHC_EXT_HOP_IDLEN, NULL, NULL);
+
+module_lowpan_nhc(ghc_ext_hop);
+MODULE_DESCRIPTION("6LoWPAN generic header hop-by-hop extension compression");
+MODULE_LICENSE("GPL");