Merge branch 'master' into topaz
[proxmark3-svn] / client / cmdhftopaz.c
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"
24
25 #define TOPAZ_MAX_MEMORY 2048
26
27 static struct {
28 uint8_t HR01[2];
29 uint8_t uid[7];
30 uint8_t size;
31 uint8_t data_blocks[TOPAZ_MAX_MEMORY/8][8];
32 uint8_t *dynamic_lock_areas;
33 uint8_t *dynamic_reserved_areas;
34 } topaz_tag;
35
36
37 static 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
44 static void topaz_switch_off_field(void)
45 {
46 UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
47 SendCommand(&c);
48 }
49
50
51 static 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
68 static 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
81 static 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
104 static 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
118 static 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
128 static 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
145 static 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
177 static 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;
191 uint8_t size_in_bits = value[1] ? value[1] : 256;
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
211 static 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;
225 uint8_t size_in_bytes = value[1] ? value[1] : 256;
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
243 static void topaz_print_lifecycle_state(uint8_t *data)
244 {
245
246 }
247
248
249 static void topaz_print_NDEF(uint8_t *data)
250 {
251
252 }
253
254
255 int CmdHFTopazReader(const char *Cmd)
256 {
257 int status;
258 uint8_t atqa[2];
259 uint8_t rid_response[8];
260 uint8_t *uid_echo = &rid_response[2];
261 uint8_t rall_response[124];
262
263 status = topaz_select(atqa, rid_response);
264
265 if (status == -1) {
266 PrintAndLog("Error: couldn't receive ATQA");
267 return -1;
268 }
269
270 PrintAndLog("ATQA : %02x %02x", atqa[1], atqa[0]);
271 if (atqa[1] != 0x0c && atqa[0] != 0x00) {
272 PrintAndLog("Tag doesn't support the Topaz protocol.");
273 topaz_switch_off_field();
274 return -1;
275 }
276
277 if (status == -2) {
278 PrintAndLog("Error: tag didn't answer to RID");
279 topaz_switch_off_field();
280 return -1;
281 }
282
283 topaz_tag.HR01[0] = rid_response[0];
284 topaz_tag.HR01[1] = rid_response[1];
285
286 // ToDo: CRC check
287 PrintAndLog("HR0 : %02x (%sa Topaz tag (%scapable of carrying a NDEF message), %s memory map)", rid_response[0],
288 (rid_response[0] & 0xF0) == 0x10 ? "" : "not ",
289 (rid_response[0] & 0xF0) == 0x10 ? "" : "not ",
290 (rid_response[0] & 0x0F) == 0x10 ? "static" : "dynamic");
291 PrintAndLog("HR1 : %02x", rid_response[1]);
292
293 status = topaz_rall(uid_echo, rall_response);
294
295 if(status == -1) {
296 PrintAndLog("Error: tag didn't answer to RALL");
297 topaz_switch_off_field();
298 return -1;
299 }
300
301 memcpy(topaz_tag.uid, rall_response+2, 7);
302 PrintAndLog("UID : %02x %02x %02x %02x %02x %02x %02x",
303 topaz_tag.uid[6],
304 topaz_tag.uid[5],
305 topaz_tag.uid[4],
306 topaz_tag.uid[3],
307 topaz_tag.uid[2],
308 topaz_tag.uid[1],
309 topaz_tag.uid[0]);
310 PrintAndLog(" UID[6] (Manufacturer Byte) = %02x, Manufacturer: %s",
311 topaz_tag.uid[6],
312 getTagInfo(topaz_tag.uid[6]));
313
314 memcpy(topaz_tag.data_blocks, rall_response+2, 0x10*8);
315 PrintAndLog("");
316 PrintAndLog("Static Data blocks 00 to 0c:");
317 PrintAndLog("block# | offset | Data | Locked?");
318 char line[80];
319 for (uint16_t i = 0; i <= 0x0c; i++) {
320 for (uint16_t j = 0; j < 8; j++) {
321 sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[i][j] /*rall_response[2 + 8*i + j]*/);
322 }
323 PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", i, i*8, line, topaz_block_is_locked(i, &topaz_tag.data_blocks[0x0e][0]) ? "yes" : "no");
324 }
325
326 PrintAndLog("");
327 PrintAndLog("Static Reserved block 0d:");
328 for (uint16_t j = 0; j < 8; j++) {
329 sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0d][j]);
330 }
331 PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0d, 0x0d*8, line, "n/a");
332
333 PrintAndLog("");
334 PrintAndLog("Static Lockbits and OTP Bytes:");
335 for (uint16_t j = 0; j < 8; j++) {
336 sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0e][j]);
337 }
338 PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0e, 0x0e*8, line, "n/a");
339
340 PrintAndLog("");
341
342 status = topaz_print_CC(&topaz_tag.data_blocks[1][0]);
343
344 if (status == -1) {
345 PrintAndLog("No NDEF message present");
346 topaz_switch_off_field();
347 return 0;
348 }
349
350 PrintAndLog("");
351 bool lock_TLV_present = topaz_print_lock_control_TLVs(&topaz_tag.data_blocks[1][4]);
352
353 PrintAndLog("");
354 bool reserved_mem_present = topaz_print_reserved_memory_control_TLVs(&topaz_tag.data_blocks[1][4]);
355
356 topaz_print_lifecycle_state(&topaz_tag.data_blocks[1][0]);
357
358 topaz_print_NDEF(&topaz_tag.data_blocks[1][0]);
359
360 topaz_switch_off_field();
361 return 0;
362 }
363
364
365 int CmdHFTopazSim(const char *Cmd)
366 {
367 PrintAndLog("not yet implemented");
368 return 0;
369 }
370
371
372 int CmdHFTopazCmdRaw(const char *Cmd)
373 {
374 PrintAndLog("not yet implemented");
375 return 0;
376 }
377
378
379 static int CmdHelp(const char *Cmd);
380
381
382 static command_t CommandTable[] =
383 {
384 {"help", CmdHelp, 1, "This help"},
385 {"reader", CmdHFTopazReader, 0, "Act like a Topaz reader"},
386 {"sim", CmdHFTopazSim, 0, "<UID> -- Simulate Topaz tag"},
387 {"snoop", CmdHF14ASnoop, 0, "Eavesdrop a Topaz reader-tag communication"},
388 {"raw", CmdHFTopazCmdRaw, 0, "Send raw hex data to tag"},
389 {NULL, NULL, 0, NULL}
390 };
391
392
393 int CmdHFTopaz(const char *Cmd) {
394 // flush
395 WaitForResponseTimeout(CMD_ACK,NULL,100);
396
397 // parse
398 CmdsParse(CommandTable, Cmd);
399 return 0;
400 }
401
402 static int CmdHelp(const char *Cmd)
403 {
404 CmdsHelp(CommandTable);
405 return 0;
406 }
407
408
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