net/6lowpan/nhc_ghc_ext_hop.c

   1 /*
   2  *      6LoWPAN Extension Header compression according to RFC7400
   3  *
   4  *      This program is free software; you can redistribute it and/or
   5  *      modify it under the terms of the GNU General Public License
   6  *      as published by the Free Software Foundation; either version
   7  *      2 of the License, or (at your option) any later version.
   8  */
   9
  10 #include "nhc.h"
  11
  12 #define LOWPAN_GHC_EXT_HOP_IDLEN        1
  13 #define LOWPAN_GHC_EXT_HOP_ID_0         0xb0
  14 #define LOWPAN_GHC_EXT_HOP_MASK_0       0xfe
  15
  16 static void hop_ghid_setup(struct lowpan_nhc *nhc)
  17 {
  18         nhc->id[0] = LOWPAN_GHC_EXT_HOP_ID_0;
  19         nhc->idmask[0] = LOWPAN_GHC_EXT_HOP_MASK_0;
  20 }
  21
  22 LOWPAN_NHC(ghc_ext_hop, "RFC7400 Hop-by-Hop Extension Header", NEXTHDR_HOP, 0,
  23            hop_ghid_setup, LOWPAN_GHC_EXT_HOP_IDLEN, NULL, NULL);
  24
  25 module_lowpan_nhc(ghc_ext_hop);
  26 MODULE_DESCRIPTION("6LoWPAN generic header hop-by-hop extension compression");
  27 MODULE_LICENSE("GPL");