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
12static 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
18LOWPAN_NHC(ghc_icmpv6, "RFC7400 ICMPv6", NEXTHDR_ICMP, 0,
19	   icmpv6_ghid_setup, LOWPAN_GHC_ICMPV6_IDLEN, NULL, NULL);
20
21module_lowpan_nhc(ghc_icmpv6);
22MODULE_DESCRIPTION("6LoWPAN generic header ICMPv6 compression");
23MODULE_LICENSE("GPL");