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69a29536 1//-----------------------------------------------------------------------------
2// Copyright (C) 2015 Piwi
3//
4// This code is licensed to you under the terms of the GNU GPL, version 2 or,
5// at your option, any later version. See the LICENSE.txt file for the text of
6// the license.
7//-----------------------------------------------------------------------------
8// High frequency Topaz (NFC Type 1) commands
9//-----------------------------------------------------------------------------
10
11#include <stdio.h>
12#include <stdlib.h>
13#include <string.h>
14#include <unistd.h>
15#include "cmdmain.h"
16#include "cmdparser.h"
17#include "cmdhftopaz.h"
18#include "cmdhf14a.h"
19#include "ui.h"
20#include "mifare.h"
21#include "proxmark3.h"
22#include "iso14443crc.h"
23#include "protocols.h"
9332b857 24#include "cmdhf.h"
69a29536 25
26#define TOPAZ_MAX_MEMORY 2048
27
28static struct {
29 uint8_t HR01[2];
30 uint8_t uid[7];
31 uint8_t size;
32 uint8_t data_blocks[TOPAZ_MAX_MEMORY/8][8];
33 uint8_t *dynamic_lock_areas;
34 uint8_t *dynamic_reserved_areas;
35} topaz_tag;
36
69a29536 37static void topaz_switch_on_field(void)
38{
39 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_SELECT | ISO14A_NO_DISCONNECT | ISO14A_TOPAZMODE, 0, 0}};
40 SendCommand(&c);
41}
42
43
44static void topaz_switch_off_field(void)
45{
46 UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
47 SendCommand(&c);
48}
49
50
51static int topaz_send_cmd_raw(uint8_t *cmd, uint8_t len, uint8_t *response)
52{
53 UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_NO_DISCONNECT | ISO14A_TOPAZMODE, len, 0}};
54 memcpy(c.d.asBytes, cmd, len);
55 SendCommand(&c);
56
57 UsbCommand resp;
58 WaitForResponse(CMD_ACK, &resp);
59
60 if (resp.arg[0] > 0) {
61 memcpy(response, resp.d.asBytes, resp.arg[0]);
62 }
63
64 return resp.arg[0];
65}
66
67
68static int topaz_send_cmd(uint8_t *cmd, uint8_t len, uint8_t *response)
69{
70 if (len > 1) {
71 uint8_t first, second;
72 ComputeCrc14443(CRC_14443_B, cmd, len-2, &first, &second);
73 cmd[len-2] = first;
74 cmd[len-1] = second;
75 }
76
77 return topaz_send_cmd_raw(cmd, len, response);
78}
79
80
81static int topaz_select(uint8_t *atqa, uint8_t *rid_response)
82{
83 // ToDo: implement anticollision
84
85 uint8_t wupa_cmd[] = {TOPAZ_WUPA};
86 uint8_t rid_cmd[] = {TOPAZ_RID, 0, 0, 0, 0, 0, 0, 0, 0};
87
88 topaz_switch_on_field();
89
90 if (!topaz_send_cmd(wupa_cmd, sizeof(wupa_cmd), atqa)) {
91 topaz_switch_off_field();
92 return -1; // WUPA failed
93 }
94
95 if (!topaz_send_cmd(rid_cmd, sizeof(rid_cmd), rid_response)) {
96 topaz_switch_off_field();
97 return -2; // RID failed
98 }
99
100 return 0; // OK
101}
102
103
104static int topaz_rall(uint8_t *uid, uint8_t *response)
105{
106 uint8_t rall_cmd[] = {TOPAZ_RALL, 0, 0, 0, 0, 0, 0, 0, 0};
107
108 memcpy(&rall_cmd[3], uid, 4);
109 if (!topaz_send_cmd(rall_cmd, sizeof(rall_cmd), response)) {
110 topaz_switch_off_field();
111 return -1; // RALL failed
112 }
113
114 return 0;
115}
116
117
118static bool topaz_block_is_locked(uint8_t blockno, uint8_t *lockbits)
119{
120 if(lockbits[blockno/8] >> (blockno % 8) & 0x01) {
121 return true;
122 } else {
123 return false;
124 }
125}
126
127
128static int topaz_print_CC(uint8_t *data)
129{
130 if(data[0] != 0xe1) {
131 return -1; // no NDEF message
132 }
133
134 PrintAndLog("Capability Container: %02x %02x %02x %02x", data[0], data[1], data[2], data[3]);
135 PrintAndLog(" %02x: NDEF Magic Number", data[0]);
136 PrintAndLog(" %02x: version %d.%d supported by tag", data[1], (data[1] & 0xF0) >> 4, data[1] & 0x0f);
137 PrintAndLog(" %02x: Physical Memory Size of this tag: %d bytes", data[2], (data[2] + 1) * 8);
138 PrintAndLog(" %02x: %s / %s", data[3],
139 (data[3] & 0xF0) ? "(RFU)" : "Read access granted without any security",
140 (data[3] & 0x0F)==0 ? "Write access granted without any security" : (data[3] & 0x0F)==0x0F ? "No write access granted at all" : "(RFU)");
141 return 0;
142}
143
144
145static void get_TLV(uint8_t **TLV_ptr, uint8_t *tag, uint16_t *length, uint8_t **value)
146{
147 *length = 0;
148 *value = NULL;
149
150 *tag = **TLV_ptr;
151 *TLV_ptr += 1;
152 switch (*tag) {
153 case 0x00: // NULL TLV.
154 case 0xFE: // Terminator TLV.
155 break;
156 case 0x01: // Lock Control TLV
157 case 0x02: // Reserved Memory TLV
158 case 0x03: // NDEF message TLV
159 case 0xFD: // proprietary TLV
160 *length = **TLV_ptr;
161 *TLV_ptr += 1;
162 if (*length == 0xff) {
163 *length = **TLV_ptr << 8;
164 *TLV_ptr += 1;
165 *length |= **TLV_ptr;
166 *TLV_ptr += 1;
167 }
168 *value = *TLV_ptr;
169 *TLV_ptr += *length;
170 break;
171 default: // RFU
172 break;
173 }
174}
175
176
177static bool topaz_print_lock_control_TLVs(uint8_t *memory)
178{
179 uint8_t *TLV_ptr = memory;
180 uint8_t tag = 0;
181 uint16_t length;
182 uint8_t *value;
183 bool lock_TLV_present = false;
184
185 while(*TLV_ptr != 0x03 && *TLV_ptr != 0xFD && *TLV_ptr != 0xFE) {
186 // all Lock Control TLVs shall be present before the NDEF message TLV, the proprietary TLV (and the Terminator TLV)
187 get_TLV(&TLV_ptr, &tag, &length, &value);
188 if (tag == 0x01) { // the Lock Control TLV
189 uint8_t pages_addr = value[0] >> 4;
190 uint8_t byte_offset = value[0] & 0x0f;
02ac2ed4 191 uint8_t size_in_bits = value[1] ? value[1] : 255;
69a29536 192 uint8_t bytes_per_page = 1 << (value[2] & 0x0f);
193 uint8_t bytes_locked_per_bit = 1 << (value[2] >> 4);
194 PrintAndLog("Lock Area of %d bits at byte offset 0x%02x. Each Lock Bit locks %d bytes.",
195 size_in_bits,
196 pages_addr * bytes_per_page + byte_offset,
197 bytes_locked_per_bit);
198 lock_TLV_present = true;
199 }
200 }
201
202 if (!lock_TLV_present) {
203 PrintAndLog("(No Lock Control TLV present)");
204 return -1;
205 } else {
206 return 0;
207 }
208}
209
210
211static int topaz_print_reserved_memory_control_TLVs(uint8_t *memory)
212{
213 uint8_t *TLV_ptr = memory;
214 uint8_t tag = 0;
215 uint16_t length;
216 uint8_t *value;
217 bool reserved_memory_control_TLV_present = false;
218
219 while(*TLV_ptr != 0x03 && *TLV_ptr != 0xFD && *TLV_ptr != 0xFE) {
220 // all Reserved Memory Control TLVs shall be present before the NDEF message TLV, the proprietary TLV (and the Terminator TLV)
221 get_TLV(&TLV_ptr, &tag, &length, &value);
222 if (tag == 0x02) { // the Reserved Memory Control TLV
223 uint8_t pages_addr = value[0] >> 4;
224 uint8_t byte_offset = value[0] & 0x0f;
02ac2ed4 225 uint8_t size_in_bytes = value[1] ? value[1] : 255;
69a29536 226 uint8_t bytes_per_page = 1 << (value[2] & 0x0f);
227 PrintAndLog("Reserved Memory of %d bytes at byte offset 0x%02x.",
228 size_in_bytes,
229 pages_addr * bytes_per_page + byte_offset);
230 reserved_memory_control_TLV_present = true;
231 }
232 }
233
234 if (!reserved_memory_control_TLV_present) {
235 PrintAndLog("(No Reserved Memory Control TLV present)");
236 return -1;
237 } else {
238 return 0;
239 }
240}
241
242
243static void topaz_print_lifecycle_state(uint8_t *data)
244{
245
246}
247
248
249static void topaz_print_NDEF(uint8_t *data)
250{
251
252}
253
254
9332b857 255int CmdHFTopazReader(const char *Cmd) {
69a29536 256 int status;
257 uint8_t atqa[2];
258 uint8_t rid_response[8];
259 uint8_t *uid_echo = &rid_response[2];
63c23614 260 uint8_t rall_response[130];
7fa7e812 261 bool verbose = TRUE;
1f3d5401 262
263 char ctmp = param_getchar(Cmd, 0);
264 if ( ctmp == 'S' || ctmp == 's') verbose = FALSE;
69a29536 265
266 status = topaz_select(atqa, rid_response);
1f3d5401 267
69a29536 268 if (status == -1) {
1f3d5401 269 if (verbose) PrintAndLog("Error: couldn't receive ATQA");
69a29536 270 return -1;
271 }
272
273 PrintAndLog("ATQA : %02x %02x", atqa[1], atqa[0]);
274 if (atqa[1] != 0x0c && atqa[0] != 0x00) {
275 PrintAndLog("Tag doesn't support the Topaz protocol.");
276 topaz_switch_off_field();
277 return -1;
278 }
279
280 if (status == -2) {
281 PrintAndLog("Error: tag didn't answer to RID");
282 topaz_switch_off_field();
283 return -1;
284 }
285
286 topaz_tag.HR01[0] = rid_response[0];
287 topaz_tag.HR01[1] = rid_response[1];
288
289 // ToDo: CRC check
290 PrintAndLog("HR0 : %02x (%sa Topaz tag (%scapable of carrying a NDEF message), %s memory map)", rid_response[0],
291 (rid_response[0] & 0xF0) == 0x10 ? "" : "not ",
292 (rid_response[0] & 0xF0) == 0x10 ? "" : "not ",
63c23614 293 (rid_response[0] & 0x0F) == 0x01 ? "static" : "dynamic");
69a29536 294 PrintAndLog("HR1 : %02x", rid_response[1]);
295
296 status = topaz_rall(uid_echo, rall_response);
297
298 if(status == -1) {
299 PrintAndLog("Error: tag didn't answer to RALL");
300 topaz_switch_off_field();
301 return -1;
302 }
303
304 memcpy(topaz_tag.uid, rall_response+2, 7);
305 PrintAndLog("UID : %02x %02x %02x %02x %02x %02x %02x",
306 topaz_tag.uid[6],
307 topaz_tag.uid[5],
308 topaz_tag.uid[4],
309 topaz_tag.uid[3],
310 topaz_tag.uid[2],
311 topaz_tag.uid[1],
312 topaz_tag.uid[0]);
3607b5a9 313
69a29536 314 PrintAndLog(" UID[6] (Manufacturer Byte) = %02x, Manufacturer: %s",
315 topaz_tag.uid[6],
316 getTagInfo(topaz_tag.uid[6]));
317
318 memcpy(topaz_tag.data_blocks, rall_response+2, 0x10*8);
319 PrintAndLog("");
320 PrintAndLog("Static Data blocks 00 to 0c:");
321 PrintAndLog("block# | offset | Data | Locked?");
322 char line[80];
323 for (uint16_t i = 0; i <= 0x0c; i++) {
324 for (uint16_t j = 0; j < 8; j++) {
325 sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[i][j] /*rall_response[2 + 8*i + j]*/);
326 }
327 PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", i, i*8, line, topaz_block_is_locked(i, &topaz_tag.data_blocks[0x0e][0]) ? "yes" : "no");
328 }
329
330 PrintAndLog("");
331 PrintAndLog("Static Reserved block 0d:");
332 for (uint16_t j = 0; j < 8; j++) {
333 sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0d][j]);
334 }
335 PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0d, 0x0d*8, line, "n/a");
336
337 PrintAndLog("");
338 PrintAndLog("Static Lockbits and OTP Bytes:");
339 for (uint16_t j = 0; j < 8; j++) {
340 sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0e][j]);
341 }
342 PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0e, 0x0e*8, line, "n/a");
343
344 PrintAndLog("");
345
346 status = topaz_print_CC(&topaz_tag.data_blocks[1][0]);
347
348 if (status == -1) {
349 PrintAndLog("No NDEF message present");
350 topaz_switch_off_field();
351 return 0;
352 }
353
354 PrintAndLog("");
355 bool lock_TLV_present = topaz_print_lock_control_TLVs(&topaz_tag.data_blocks[1][4]);
2495281d 356 if ( lock_TLV_present ) {
357 PrintAndLog("");
358 }
359
69a29536 360 PrintAndLog("");
361 bool reserved_mem_present = topaz_print_reserved_memory_control_TLVs(&topaz_tag.data_blocks[1][4]);
2495281d 362 if (reserved_mem_present) {
363 PrintAndLog("");
364 }
365
69a29536 366 topaz_print_lifecycle_state(&topaz_tag.data_blocks[1][0]);
367
368 topaz_print_NDEF(&topaz_tag.data_blocks[1][0]);
369
370 topaz_switch_off_field();
371 return 0;
372}
373
9332b857 374int CmdHFTopazSim(const char *Cmd) {
69a29536 375 PrintAndLog("not yet implemented");
376 return 0;
377}
378
9332b857 379int CmdHFTopazCmdRaw(const char *Cmd) {
69a29536 380 PrintAndLog("not yet implemented");
381 return 0;
382}
383
9332b857 384int CmdHFTopazList(const char *Cmd) {
385 CmdHFList("topaz");
386 return 0;
387}
69a29536 388
389static int CmdHelp(const char *Cmd);
390
69a29536 391static command_t CommandTable[] =
392{
393 {"help", CmdHelp, 1, "This help"},
394 {"reader", CmdHFTopazReader, 0, "Act like a Topaz reader"},
395 {"sim", CmdHFTopazSim, 0, "<UID> -- Simulate Topaz tag"},
4f5cb23a 396 {"sniff", CmdHF14ASniff, 0, "Sniff Topaz reader-tag communication"},
69a29536 397 {"raw", CmdHFTopazCmdRaw, 0, "Send raw hex data to tag"},
9332b857 398 {"list", CmdHFTopazList, 0, "[Deprecated] List Topaz history"},
69a29536 399 {NULL, NULL, 0, NULL}
400};
401
69a29536 402int CmdHFTopaz(const char *Cmd) {
403 // flush
e1ad67ea 404 //WaitForResponseTimeout(CMD_ACK,NULL,100);
405 clearCommandBuffer();
406
69a29536 407 // parse
408 CmdsParse(CommandTable, Cmd);
409 return 0;
410}
411
412static int CmdHelp(const char *Cmd)
413{
414 CmdsHelp(CommandTable);
415 return 0;
416}
417
418
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