1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * 6LoWPAN Extension Header compression according to RFC7400 4 */ 5 6 #include "nhc.h" 7 8 #define LOWPAN_GHC_EXT_HOP_IDLEN 1 9 #define LOWPAN_GHC_EXT_HOP_ID_0 0xb0 10 #define LOWPAN_GHC_EXT_HOP_MASK_0 0xfe 11 12 static void hop_ghid_setup(struct lowpan_nhc *nhc) 13 { 14 nhc->id[0] = LOWPAN_GHC_EXT_HOP_ID_0; 15 nhc->idmask[0] = LOWPAN_GHC_EXT_HOP_MASK_0; 16 } 17 18 LOWPAN_NHC(ghc_ext_hop, "RFC7400 Hop-by-Hop Extension Header", NEXTHDR_HOP, 0, 19 hop_ghid_setup, LOWPAN_GHC_EXT_HOP_IDLEN, NULL, NULL); 20 21 module_lowpan_nhc(ghc_ext_hop); 22 MODULE_DESCRIPTION("6LoWPAN generic header hop-by-hop extension compression"); 23 MODULE_LICENSE("GPL"); 24