Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxx>
---
net/6lowpan/Kconfig | 6 ++++++
net/6lowpan/Makefile | 1 +
net/6lowpan/nhc_ghc_ext_dest.c | 27 +++++++++++++++++++++++++++
3 files changed, 34 insertions(+)
create mode 100644 net/6lowpan/nhc_ghc_ext_dest.c
diff --git a/net/6lowpan/Kconfig b/net/6lowpan/Kconfig
index 0a3f5a8..e5184e6 100644
--- a/net/6lowpan/Kconfig
+++ b/net/6lowpan/Kconfig
@@ -75,4 +75,10 @@ config 6LOWPAN_GHC_ICMPV6
---help---
6LoWPAN IPv6 ICMPv6 generic header compression according to RFC7400.
+config 6LOWPAN_GHC_EXT_HDR_DEST
+ tristate "GHC Destination Options Header Support"
+ ---help---
+ 6LoWPAN IPv6 destination option generic header compression according
+ to RFC7400.
+
endif
diff --git a/net/6lowpan/Makefile b/net/6lowpan/Makefile
index 86af3fd..fc4bac0 100644
--- a/net/6lowpan/Makefile
+++ b/net/6lowpan/Makefile
@@ -15,3 +15,4 @@ obj-$(CONFIG_6LOWPAN_NHC_UDP) += nhc_udp.o
obj-$(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
+obj-$(CONFIG_6LOWPAN_GHC_EXT_HDR_DEST) += nhc_ghc_ext_dest.o
diff --git a/net/6lowpan/nhc_ghc_ext_dest.c b/net/6lowpan/nhc_ghc_ext_dest.c
new file mode 100644
index 0000000..9887b3a
--- /dev/null
+++ b/net/6lowpan/nhc_ghc_ext_dest.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_DEST_IDLEN 1
+#define LOWPAN_GHC_EXT_DEST_ID_0 0xb6
+#define LOWPAN_GHC_EXT_DEST_MASK_0 0xfe
+
+static void dest_ghid_setup(struct lowpan_nhc *nhc)
+{
+ nhc->id[0] = LOWPAN_GHC_EXT_DEST_ID_0;
+ nhc->idmask[0] = LOWPAN_GHC_EXT_DEST_MASK_0;
+}
+
+LOWPAN_NHC(ghc_ext_dest, "RFC7400 Destination Extension Header", NEXTHDR_DEST,
+ 0, dest_ghid_setup, LOWPAN_GHC_EXT_DEST_IDLEN, NULL, NULL);
+
+module_lowpan_nhc(ghc_ext_dest);
+MODULE_DESCRIPTION("6LoWPAN generic header destination extension compression");
+MODULE_LICENSE("GPL");
--
2.4.3
--
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