linux/net/6lowpan/nhc_ghc_udp.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *      6LoWPAN UDP compression according to RFC7400
   4 */
   5
   6#include "nhc.h"
   7
   8#define LOWPAN_GHC_UDP_IDLEN    1
   9#define LOWPAN_GHC_UDP_ID_0     0xd0
  10#define LOWPAN_GHC_UDP_MASK_0   0xf8
  11
  12static void udp_ghid_setup(struct lowpan_nhc *nhc)
  13{
  14        nhc->id[0] = LOWPAN_GHC_UDP_ID_0;
  15        nhc->idmask[0] = LOWPAN_GHC_UDP_MASK_0;
  16}
  17
  18LOWPAN_NHC(ghc_udp, "RFC7400 UDP", NEXTHDR_UDP, 0,
  19           udp_ghid_setup, LOWPAN_GHC_UDP_IDLEN, NULL, NULL);
  20
  21module_lowpan_nhc(ghc_udp);
  22MODULE_DESCRIPTION("6LoWPAN generic header UDP compression");
  23MODULE_LICENSE("GPL");
  24