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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" | |
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 |