15  * Original code by Ola Martin Lykkja (ola.lykkja@q-free.com)
22 #include "netdissect-stdinc.h"
31    ETSI TS 102 636-5-1 V1.1.1 (2011-02)
33    Part 5: Transport Protocols; Sub-part 1: Basic Transport Protocol
35    ETSI TS 102 636-4-1 V1.1.1 (2011-06)
37 …Part 4: Geographical addressing and forwarding for point-to-point and point-to-multipoint communic…
38    Sub-part 1: Media-Independent Functionality
67 	ND_PRINT(" t:%u-%s", msg_type,  in print_btp_body()
71 /* EN 302 636-5-1 V2.2.1 Section 7.2: BTP-A header */
106 	int hdr_size = -1;  in geonet_print()
108 	ndo->ndo_protocol = "geonet";  in geonet_print()
111 		ND_PRINT("src:%s", (src->addr_string)(ndo, src->addr));  in geonet_print()
120 	version = GET_U_1(bp) >> 4;  in geonet_print()
122 	hdr_type = GET_U_1(bp + 1) >> 4;  in geonet_print()
124 	payload_length = GET_BE_U_2(bp + 4);  in geonet_print()
127 	switch (next_hdr) {  in geonet_print()
129 		case 1: next_hdr_txt = "BTP-A"; break;  in geonet_print()
130 		case 2: next_hdr_txt = "BTP-B"; break;  in geonet_print()
134 	switch (hdr_type) {  in geonet_print()
138 		case 3: switch (hdr_subtype) {  in geonet_print()
144 		case 4: switch (hdr_subtype) {  in geonet_print()
150 		case 5: switch (hdr_subtype) {  in geonet_print()
151 				case 0: hdr_type_txt = "TopoScopeBcast-SH"; break;  in geonet_print()
152 				case 1: hdr_type_txt = "TopoScopeBcast-MH"; break;  in geonet_print()
155 		case 6: switch (hdr_subtype) {  in geonet_print()
156 				case 0: hdr_type_txt = "LocService-Request"; break;  in geonet_print()
157 				case 1: hdr_type_txt = "LocService-Reply"; break;  in geonet_print()
163 	ND_PRINT("NH:%u-%s ", next_hdr, next_hdr_txt);  in geonet_print()
164 	ND_PRINT("HT:%u-%u-%s ", hdr_type, hdr_subtype, hdr_type_txt);  in geonet_print()
171 	length -= 36;  in geonet_print()
175 	switch (hdr_type) {  in geonet_print()
184 		case 3: switch (hdr_subtype) {  in geonet_print()
193 		case 4: switch (hdr_subtype) {  in geonet_print()
202 		case 5: switch (hdr_subtype) {  in geonet_print()
203 				case 0: /* TopoScopeBcast-SH */  in geonet_print()
206 				case 1: /* TopoScopeBcast-MH */  in geonet_print()
207 					hdr_size = 68 - 36;  in geonet_print()
211 		case 6: switch (hdr_subtype) {  in geonet_print()
212 				case 0: /* LocService-Request */  in geonet_print()
214 				case 1: /* LocService-Reply */  in geonet_print()
227 		length -= hdr_size;  in geonet_print()
229 		switch (next_hdr) {  in geonet_print()
234 				if (length < 4) {  in geonet_print()
235 					ND_PRINT(" (BTP length %u < 4)", length);  in geonet_print()
239 				length -= 4;  in geonet_print()
240 				bp += 4;  in geonet_print()
243 					 * XXX - did print_btp_body()  in geonet_print()
258 	if (ndo->ndo_vflag)  in geonet_print()
264 	/* XXX - print the remaining data as hex? */  in geonet_print()