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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" |
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24 | #include "cmdhf.h" |
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25 | |
26 | #define TOPAZ_MAX_MEMORY 2048 |
27 | |
28 | static 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 | |
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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 | |
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255 | int CmdHFTopazReader(const char *Cmd) { |
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256 | int status; |
257 | uint8_t atqa[2]; |
258 | uint8_t rid_response[8]; |
259 | uint8_t *uid_echo = &rid_response[2]; |
260 | uint8_t rall_response[124]; |
261 | |
262 | status = topaz_select(atqa, rid_response); |
263 | |
264 | if (status == -1) { |
265 | PrintAndLog("Error: couldn't receive ATQA"); |
266 | return -1; |
267 | } |
268 | |
269 | PrintAndLog("ATQA : %02x %02x", atqa[1], atqa[0]); |
270 | if (atqa[1] != 0x0c && atqa[0] != 0x00) { |
271 | PrintAndLog("Tag doesn't support the Topaz protocol."); |
272 | topaz_switch_off_field(); |
273 | return -1; |
274 | } |
275 | |
276 | if (status == -2) { |
277 | PrintAndLog("Error: tag didn't answer to RID"); |
278 | topaz_switch_off_field(); |
279 | return -1; |
280 | } |
281 | |
282 | topaz_tag.HR01[0] = rid_response[0]; |
283 | topaz_tag.HR01[1] = rid_response[1]; |
284 | |
285 | // ToDo: CRC check |
286 | PrintAndLog("HR0 : %02x (%sa Topaz tag (%scapable of carrying a NDEF message), %s memory map)", rid_response[0], |
287 | (rid_response[0] & 0xF0) == 0x10 ? "" : "not ", |
288 | (rid_response[0] & 0xF0) == 0x10 ? "" : "not ", |
289 | (rid_response[0] & 0x0F) == 0x10 ? "static" : "dynamic"); |
290 | PrintAndLog("HR1 : %02x", rid_response[1]); |
291 | |
292 | status = topaz_rall(uid_echo, rall_response); |
293 | |
294 | if(status == -1) { |
295 | PrintAndLog("Error: tag didn't answer to RALL"); |
296 | topaz_switch_off_field(); |
297 | return -1; |
298 | } |
299 | |
300 | memcpy(topaz_tag.uid, rall_response+2, 7); |
301 | PrintAndLog("UID : %02x %02x %02x %02x %02x %02x %02x", |
302 | topaz_tag.uid[6], |
303 | topaz_tag.uid[5], |
304 | topaz_tag.uid[4], |
305 | topaz_tag.uid[3], |
306 | topaz_tag.uid[2], |
307 | topaz_tag.uid[1], |
308 | topaz_tag.uid[0]); |
309 | PrintAndLog(" UID[6] (Manufacturer Byte) = %02x, Manufacturer: %s", |
310 | topaz_tag.uid[6], |
311 | getTagInfo(topaz_tag.uid[6])); |
312 | |
313 | memcpy(topaz_tag.data_blocks, rall_response+2, 0x10*8); |
314 | PrintAndLog(""); |
315 | PrintAndLog("Static Data blocks 00 to 0c:"); |
316 | PrintAndLog("block# | offset | Data | Locked?"); |
317 | char line[80]; |
318 | for (uint16_t i = 0; i <= 0x0c; i++) { |
319 | for (uint16_t j = 0; j < 8; j++) { |
320 | sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[i][j] /*rall_response[2 + 8*i + j]*/); |
321 | } |
322 | PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", i, i*8, line, topaz_block_is_locked(i, &topaz_tag.data_blocks[0x0e][0]) ? "yes" : "no"); |
323 | } |
324 | |
325 | PrintAndLog(""); |
326 | PrintAndLog("Static Reserved block 0d:"); |
327 | for (uint16_t j = 0; j < 8; j++) { |
328 | sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0d][j]); |
329 | } |
330 | PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0d, 0x0d*8, line, "n/a"); |
331 | |
332 | PrintAndLog(""); |
333 | PrintAndLog("Static Lockbits and OTP Bytes:"); |
334 | for (uint16_t j = 0; j < 8; j++) { |
335 | sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0e][j]); |
336 | } |
337 | PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0e, 0x0e*8, line, "n/a"); |
338 | |
339 | PrintAndLog(""); |
340 | |
341 | status = topaz_print_CC(&topaz_tag.data_blocks[1][0]); |
342 | |
343 | if (status == -1) { |
344 | PrintAndLog("No NDEF message present"); |
345 | topaz_switch_off_field(); |
346 | return 0; |
347 | } |
348 | |
349 | PrintAndLog(""); |
350 | bool lock_TLV_present = topaz_print_lock_control_TLVs(&topaz_tag.data_blocks[1][4]); |
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351 | if ( lock_TLV_present ) { |
352 | PrintAndLog(""); |
353 | } |
354 | |
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355 | PrintAndLog(""); |
356 | bool reserved_mem_present = topaz_print_reserved_memory_control_TLVs(&topaz_tag.data_blocks[1][4]); |
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357 | if (reserved_mem_present) { |
358 | PrintAndLog(""); |
359 | } |
360 | |
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361 | topaz_print_lifecycle_state(&topaz_tag.data_blocks[1][0]); |
362 | |
363 | topaz_print_NDEF(&topaz_tag.data_blocks[1][0]); |
364 | |
365 | topaz_switch_off_field(); |
366 | return 0; |
367 | } |
368 | |
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369 | int CmdHFTopazSim(const char *Cmd) { |
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370 | PrintAndLog("not yet implemented"); |
371 | return 0; |
372 | } |
373 | |
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374 | int CmdHFTopazCmdRaw(const char *Cmd) { |
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375 | PrintAndLog("not yet implemented"); |
376 | return 0; |
377 | } |
378 | |
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379 | int CmdHFTopazList(const char *Cmd) { |
380 | CmdHFList("topaz"); |
381 | return 0; |
382 | } |
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383 | |
384 | static int CmdHelp(const char *Cmd); |
385 | |
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386 | static command_t CommandTable[] = |
387 | { |
388 | {"help", CmdHelp, 1, "This help"}, |
389 | {"reader", CmdHFTopazReader, 0, "Act like a Topaz reader"}, |
390 | {"sim", CmdHFTopazSim, 0, "<UID> -- Simulate Topaz tag"}, |
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391 | {"sniff", CmdHF14ASniff, 0, "Sniff Topaz reader-tag communication"}, |
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392 | {"raw", CmdHFTopazCmdRaw, 0, "Send raw hex data to tag"}, |
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393 | {"list", CmdHFTopazList, 0, "[Deprecated] List Topaz history"}, |
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394 | {NULL, NULL, 0, NULL} |
395 | }; |
396 | |
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397 | int CmdHFTopaz(const char *Cmd) { |
398 | // flush |
399 | WaitForResponseTimeout(CMD_ACK,NULL,100); |
400 | |
401 | // parse |
402 | CmdsParse(CommandTable, Cmd); |
403 | return 0; |
404 | } |
405 | |
406 | static int CmdHelp(const char *Cmd) |
407 | { |
408 | CmdsHelp(CommandTable); |
409 | return 0; |
410 | } |
411 | |
412 | |