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"); 24