net/6lowpan/nhc_ghc_icmpv6.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *      6LoWPAN ICMPv6 compression according to RFC7400
   4  */
   5
   6 #include "nhc.h"
   7
   8 #define LOWPAN_GHC_ICMPV6_IDLEN         1
   9 #define LOWPAN_GHC_ICMPV6_ID_0          0xdf
  10 #define LOWPAN_GHC_ICMPV6_MASK_0        0xff
  11
  12 static void icmpv6_ghid_setup(struct lowpan_nhc *nhc)
  13 {
  14         nhc->id[0] = LOWPAN_GHC_ICMPV6_ID_0;
  15         nhc->idmask[0] = LOWPAN_GHC_ICMPV6_MASK_0;
  16 }
  17
  18 LOWPAN_NHC(ghc_icmpv6, "RFC7400 ICMPv6", NEXTHDR_ICMP, 0,
  19            icmpv6_ghid_setup, LOWPAN_GHC_ICMPV6_IDLEN, NULL, NULL);
  20
  21 module_lowpan_nhc(ghc_icmpv6);
  22 MODULE_DESCRIPTION("6LoWPAN generic header ICMPv6 compression");
  23 MODULE_LICENSE("GPL");