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_FRAG_IDLEN 1 9 #define LOWPAN_GHC_EXT_FRAG_ID_0 0xb4 10 #define LOWPAN_GHC_EXT_FRAG_MASK_0 0xfe 11 12 static void frag_ghid_setup(struct lowpan_nhc *nhc) 13 { 14 nhc->id[0] = LOWPAN_GHC_EXT_FRAG_ID_0; 15 nhc->idmask[0] = LOWPAN_GHC_EXT_FRAG_MASK_0; 16 } 17 18 LOWPAN_NHC(ghc_ext_frag, "RFC7400 Fragmentation Extension Header", 19 NEXTHDR_FRAGMENT, 0, frag_ghid_setup, 20 LOWPAN_GHC_EXT_FRAG_IDLEN, NULL, NULL); 21 22 module_lowpan_nhc(ghc_ext_frag); 23 MODULE_DESCRIPTION("6LoWPAN generic header fragmentation extension compression"); 24 MODULE_LICENSE("GPL"); 25