net/6lowpan/nhc_hop.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *      6LoWPAN IPv6 Hop-by-Hop Options Header compression according to RFC6282
   4  */
   5
   6 #include "nhc.h"
   7
   8 #define LOWPAN_NHC_HOP_IDLEN    1
   9 #define LOWPAN_NHC_HOP_ID_0     0xe0
  10 #define LOWPAN_NHC_HOP_MASK_0   0xfe
  11
  12 static void hop_nhid_setup(struct lowpan_nhc *nhc)
  13 {
  14         nhc->id[0] = LOWPAN_NHC_HOP_ID_0;
  15         nhc->idmask[0] = LOWPAN_NHC_HOP_MASK_0;
  16 }
  17
  18 LOWPAN_NHC(nhc_hop, "RFC6282 Hop-by-Hop Options", NEXTHDR_HOP, 0,
  19            hop_nhid_setup, LOWPAN_NHC_HOP_IDLEN, NULL, NULL);
  20
  21 module_lowpan_nhc(nhc_hop);
  22 MODULE_DESCRIPTION("6LoWPAN next header RFC6282 Hop-by-Hop Options compression");
  23 MODULE_LICENSE("GPL");