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 
udp_ghid_setup(struct lowpan_nhc * nhc)12 static 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 
18 LOWPAN_NHC(ghc_udp, "RFC7400 UDP", NEXTHDR_UDP, 0,
19 	   udp_ghid_setup, LOWPAN_GHC_UDP_IDLEN, NULL, NULL);
20 
21 module_lowpan_nhc(ghc_udp);
22 MODULE_DESCRIPTION("6LoWPAN generic header UDP compression");
23 MODULE_LICENSE("GPL");
24