2020-06-15 20:31:34 +08:00
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//-----------------------------------------------------------------------------
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// Copyright (C) 2020 tharexde
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//
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2020-12-04 07:11:57 +08:00
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// modified iceman, 2020
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//
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2020-06-15 20:31:34 +08:00
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Low frequency EM4x50 commands
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//-----------------------------------------------------------------------------
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2020-11-02 05:51:32 +08:00
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#include "cliparser.h"
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2020-06-15 20:31:34 +08:00
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#include "cmdlfem4x50.h"
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#include <ctype.h>
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2020-12-04 07:11:57 +08:00
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#include "cmdparser.h" // command_t
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2020-06-15 20:31:34 +08:00
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#include "fileutils.h"
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2020-06-18 05:39:00 +08:00
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#include "commonutil.h"
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2020-11-10 07:39:48 +08:00
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#include "pmflash.h"
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2020-12-05 05:38:48 +08:00
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#include "cmdflashmemspiffs.h"
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2020-06-15 20:31:34 +08:00
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2020-12-04 03:40:58 +08:00
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#define BYTES2UINT32(x) ((x[0] << 24) | (x[1] << 16) | (x[2] << 8) | (x[3]))
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2020-12-07 03:40:46 +08:00
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static int CmdHelp(const char *Cmd);
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2020-06-15 20:31:34 +08:00
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2020-10-12 02:06:03 +08:00
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static void prepare_result(const uint8_t *data, int fwr, int lwr, em4x50_word_t *words) {
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2020-06-15 20:31:34 +08:00
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2020-10-12 02:06:03 +08:00
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// restructure received result in "em4x50_word_t" structure
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2020-12-09 19:18:01 +08:00
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for (int i = fwr; i <= lwr; i++) {
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for (int j = 0; j < 4; j++) {
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2020-12-12 21:46:40 +08:00
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words[i].byte[j] = data[i * 4 + (3 - j)];
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2020-12-09 19:18:01 +08:00
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}
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}
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2020-06-15 20:31:34 +08:00
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}
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2020-07-06 11:41:44 +08:00
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static void print_result(const em4x50_word_t *words, int fwr, int lwr) {
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2020-07-01 00:50:38 +08:00
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2020-06-15 20:31:34 +08:00
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// print available information for given word from fwr to lwr, i.e.
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// bit table + summary lines with hex notation of word (msb + lsb)
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2020-07-01 00:50:38 +08:00
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2020-07-06 11:41:44 +08:00
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(INFO, " # | word (msb) | word (lsb) | desc");
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PrintAndLogEx(INFO, "----+-------------+-------------+--------------------");
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2020-06-15 20:31:34 +08:00
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for (int i = fwr; i <= lwr; i++) {
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2020-07-06 11:41:44 +08:00
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char s[50] = {0};
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2020-08-13 18:25:04 +08:00
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switch (i) {
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2020-07-06 11:41:44 +08:00
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case EM4X50_DEVICE_PASSWORD:
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sprintf(s, _YELLOW_("password, write only"));
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break;
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case EM4X50_PROTECTION:
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sprintf(s, _YELLOW_("protection cfg (locked)"));
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break;
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case EM4X50_CONTROL:
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sprintf(s, _YELLOW_("control cfg (locked)"));
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break;
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case EM4X50_DEVICE_SERIAL:
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sprintf(s, _YELLOW_("device serial number (read only)"));
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break;
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case EM4X50_DEVICE_ID:
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sprintf(s, _YELLOW_("device identification (read only)"));
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break;
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default:
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sprintf(s, "user data");
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break;
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}
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2020-06-29 03:35:06 +08:00
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2020-07-06 11:41:44 +08:00
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char r[30] = {0};
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for (int j = 3; j >= 0; j--) {
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sprintf(r + strlen(r), "%02x ", reflect8(words[i].byte[j]));
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2020-06-15 20:31:34 +08:00
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}
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2020-08-13 18:25:04 +08:00
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2020-07-06 11:41:44 +08:00
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PrintAndLogEx(INFO, " %2i | " _GREEN_("%s") "| %s| %s",
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2020-08-13 18:25:04 +08:00
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i,
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sprint_hex(words[i].byte, 4),
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r,
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s
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);
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2020-06-15 20:31:34 +08:00
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}
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2020-07-06 11:41:44 +08:00
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PrintAndLogEx(INFO, "----+-------------+-------------+--------------------");
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2020-06-15 20:31:34 +08:00
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}
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2020-12-20 05:00:48 +08:00
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static void print_info_result(uint8_t *data, bool verbose) {
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2020-06-15 20:31:34 +08:00
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2020-06-23 06:36:19 +08:00
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// display all information of info result in structured format
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em4x50_word_t words[EM4X50_NO_WORDS];
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prepare_result(data, 0, EM4X50_NO_WORDS - 1, words);
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bool bpwc = words[EM4X50_CONTROL].byte[CONFIG_BLOCK] & PASSWORD_CHECK;
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bool braw = words[EM4X50_CONTROL].byte[CONFIG_BLOCK] & READ_AFTER_WRITE;
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2020-06-30 23:43:47 +08:00
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2020-06-23 06:36:19 +08:00
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int fwr = reflect8(words[EM4X50_CONTROL].byte[FIRST_WORD_READ]);
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int lwr = reflect8(words[EM4X50_CONTROL].byte[LAST_WORD_READ]);
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int fwrp = reflect8(words[EM4X50_PROTECTION].byte[FIRST_WORD_READ_PROTECTED]);
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int lwrp = reflect8(words[EM4X50_PROTECTION].byte[LAST_WORD_READ_PROTECTED]);
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int fwwi = reflect8(words[EM4X50_PROTECTION].byte[FIRST_WORD_WRITE_INHIBITED]);
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int lwwi = reflect8(words[EM4X50_PROTECTION].byte[LAST_WORD_WRITE_INHIBITED]);
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2020-07-01 00:50:38 +08:00
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2020-06-30 23:43:47 +08:00
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(INFO, "--- " _CYAN_("Tag Information") " ---------------------------");
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PrintAndLogEx(INFO, "-------------------------------------------------------------");
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2020-07-01 00:50:38 +08:00
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2020-06-15 20:31:34 +08:00
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// data section
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2020-06-30 23:43:47 +08:00
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(INFO, _YELLOW_("EM4x50 data:"));
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2020-12-20 05:00:48 +08:00
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if (verbose) {
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print_result(words, 0, EM4X50_NO_WORDS - 1);
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} else {
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print_result(words, EM4X50_DEVICE_SERIAL, EM4X50_DEVICE_ID);
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}
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2020-08-13 18:25:04 +08:00
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2020-06-15 20:31:34 +08:00
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// configuration section
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2020-06-30 23:43:47 +08:00
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(INFO, "---- " _CYAN_("Configuration") " ----");
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2020-06-15 20:31:34 +08:00
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2020-06-30 23:43:47 +08:00
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PrintAndLogEx(INFO, "first word read %3i", fwr);
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PrintAndLogEx(INFO, "last word read %3i", lwr);
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2020-08-13 18:25:04 +08:00
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PrintAndLogEx(INFO, "password check %3s", (bpwc) ? _RED_("on") : _GREEN_("off"));
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2020-06-30 23:43:47 +08:00
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PrintAndLogEx(INFO, "read after write %3s", (braw) ? "on" : "off");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(INFO, "--------- " _CYAN_("Protection") " ---------");
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PrintAndLogEx(INFO, "first word read protected %3i", fwrp);
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PrintAndLogEx(INFO, "last word read protected %3i", lwrp);
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PrintAndLogEx(INFO, "first word write inhibited %3i", fwwi);
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PrintAndLogEx(INFO, "last word write inhibited %3i", lwwi);
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(INFO, "zero values may indicate read protection");
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PrintAndLogEx(NORMAL, "");
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}
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2020-06-15 20:31:34 +08:00
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2020-11-20 06:18:04 +08:00
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static int em4x50_load_file(const char *filename, uint8_t *data, size_t data_len, size_t *bytes_read) {
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2020-06-15 20:31:34 +08:00
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2020-11-20 06:18:04 +08:00
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// read data from dump file; file type is derived from file name extension
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2020-06-15 20:31:34 +08:00
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2020-11-20 06:18:04 +08:00
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int res = 0;
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uint32_t serial = 0x0, device_id = 0x0;
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2020-12-12 21:46:40 +08:00
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2020-11-20 06:18:04 +08:00
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if (str_endswith(filename, ".eml"))
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res = loadFileEML(filename, data, bytes_read) != PM3_SUCCESS;
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else if (str_endswith(filename, ".json"))
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res = loadFileJSON(filename, data, data_len, bytes_read, NULL);
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else
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res = loadFile(filename, ".bin", data, data_len, bytes_read);
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2020-11-02 05:51:32 +08:00
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2020-11-20 06:18:04 +08:00
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if ((res != PM3_SUCCESS) && (*bytes_read != DUMP_FILESIZE))
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return PM3_EFILE;
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2020-06-15 20:31:34 +08:00
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2020-11-20 06:18:04 +08:00
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// valid em4x50 data?
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serial = bytes_to_num(data + 4 * EM4X50_DEVICE_SERIAL, 4);
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device_id = bytes_to_num(data + 4 * EM4X50_DEVICE_ID, 4);
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if (serial == device_id) {
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PrintAndLogEx(WARNING, "No valid em4x50 data in file %s.", filename);
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return PM3_ENODATA;
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2020-06-15 20:31:34 +08:00
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}
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2020-11-20 06:18:04 +08:00
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return PM3_SUCCESS;
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}
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2020-06-15 20:31:34 +08:00
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2020-12-04 03:40:58 +08:00
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static void em4x50_seteml(uint8_t *src, uint32_t offset, uint32_t numofbytes) {
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2020-12-04 05:00:52 +08:00
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2020-12-04 03:40:58 +08:00
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// fast push mode
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conn.block_after_ACK = true;
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for (size_t i = offset; i < numofbytes; i += PM3_CMD_DATA_SIZE) {
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size_t len = MIN((numofbytes - i), PM3_CMD_DATA_SIZE);
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if (len == numofbytes - i) {
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// Disable fast mode on last packet
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conn.block_after_ACK = false;
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}
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clearCommandBuffer();
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SendCommandOLD(CMD_LF_EM4X50_ESET, i, len, 0, src + i, len);
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}
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}
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2020-11-20 06:18:04 +08:00
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int CmdEM4x50ELoad(const char *Cmd) {
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2020-11-02 05:51:32 +08:00
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CLIParserContext *ctx;
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2020-12-07 06:14:41 +08:00
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CLIParserInit(&ctx, "lf em 4x50 eload",
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2020-12-04 03:40:58 +08:00
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"Loads EM4x50 tag dump into emulator memory on device.",
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2020-12-09 19:18:01 +08:00
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"lf em 4x50 eload -f mydump.bin\n"
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"lf em 4x50 eload -f mydump.eml\n"
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"lf em 4x50 eload -f mydump.json"
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2020-11-02 05:51:32 +08:00
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);
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void *argtable[] = {
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arg_param_begin,
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2020-11-20 06:18:04 +08:00
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arg_str1("f", "filename", "<filename>", "dump filename"),
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2020-11-02 05:51:32 +08:00
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arg_param_end
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};
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2020-11-20 06:18:04 +08:00
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2020-11-02 05:51:32 +08:00
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CLIExecWithReturn(ctx, Cmd, argtable, true);
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2020-12-09 19:18:01 +08:00
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int fnlen = 0;
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char filename[FILE_PATH_SIZE] = {0};
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CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
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2020-11-20 06:18:04 +08:00
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CLIParserFree(ctx);
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// read data from dump file; file type has to be "bin", "eml" or "json"
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2020-12-09 19:18:01 +08:00
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size_t bytes_read = 0;
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uint8_t data[DUMP_FILESIZE] = {0x0};
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2020-11-20 06:18:04 +08:00
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if (em4x50_load_file(filename, data, DUMP_FILESIZE, &bytes_read) != PM3_SUCCESS) {
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PrintAndLogEx(FAILED, "Read error");
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return PM3_EFILE;
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2020-11-02 05:51:32 +08:00
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}
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2020-11-20 06:18:04 +08:00
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2020-12-04 03:40:58 +08:00
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// upload to emulator memory
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PrintAndLogEx(INFO, "Uploading dump " _YELLOW_("%s") " to emulator memory", filename);
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em4x50_seteml(data, 0, DUMP_FILESIZE);
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2020-12-12 21:46:40 +08:00
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2020-11-20 06:18:04 +08:00
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PrintAndLogEx(INFO, "Done");
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return PM3_SUCCESS;
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}
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int CmdEM4x50ESave(const char *Cmd) {
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CLIParserContext *ctx;
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2020-12-07 06:14:41 +08:00
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CLIParserInit(&ctx, "lf em 4x50 esave",
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2020-12-04 03:40:58 +08:00
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"Saves bin/eml/json dump file of emulator memory.",
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2020-12-09 19:18:01 +08:00
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"lf em 4x50 esave -> use UID as filename\n"
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"lf em 4x50 esave -f mydump.bin\n"
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"lf em 4x50 esave -f mydump.eml\n"
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"lf em 4x50 esave -f mydump.json\n"
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2020-11-20 06:18:04 +08:00
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);
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void *argtable[] = {
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arg_param_begin,
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arg_str0("f", "filename", "<filename>", "data filename"),
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arg_param_end
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};
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CLIExecWithReturn(ctx, Cmd, argtable, true);
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2020-12-09 19:18:01 +08:00
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int fnlen = 0;
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char filename[FILE_PATH_SIZE] = {0};
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CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
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2020-11-02 05:51:32 +08:00
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CLIParserFree(ctx);
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2020-06-17 05:25:27 +08:00
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2020-12-04 03:40:58 +08:00
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// download emulator memory
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PrintAndLogEx(SUCCESS, "Reading emulator memory...");
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2020-12-09 19:18:01 +08:00
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uint8_t data[DUMP_FILESIZE] = {0x0};
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if (GetFromDevice(BIG_BUF_EML, data, DUMP_FILESIZE, 0, NULL, 0, NULL, 2500, false) == false) {
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2020-11-20 06:18:04 +08:00
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PrintAndLogEx(WARNING, "Fail, transfer from device time-out");
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2020-06-18 05:13:13 +08:00
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return PM3_ETIMEOUT;
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2020-06-17 05:25:27 +08:00
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}
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2020-12-12 21:46:40 +08:00
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2020-11-20 06:18:04 +08:00
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// valid em4x50 data?
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2020-12-09 19:18:01 +08:00
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uint32_t serial = bytes_to_num(data + 4 * EM4X50_DEVICE_SERIAL, 4);
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uint32_t device_id = bytes_to_num(data + 4 * EM4X50_DEVICE_ID, 4);
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2020-11-20 06:18:04 +08:00
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if (serial == device_id) {
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PrintAndLogEx(WARNING, "No valid em4x50 data in flash memory.");
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return PM3_ENODATA;
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2020-06-30 23:59:06 +08:00
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}
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2020-12-12 21:46:40 +08:00
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2020-11-20 06:18:04 +08:00
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// user supplied filename?
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2020-12-09 19:18:01 +08:00
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if (fnlen == 0) {
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2020-11-20 06:18:04 +08:00
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PrintAndLogEx(INFO, "Using UID as filename");
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2020-12-09 19:18:01 +08:00
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char *fptr = filename;
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2020-11-20 06:18:04 +08:00
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fptr += snprintf(fptr, sizeof(filename), "lf-4x50-");
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FillFileNameByUID(fptr, (uint8_t *)&data[4 * EM4X50_DEVICE_ID], "-dump", 4);
|
2020-06-30 23:59:06 +08:00
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
saveFile(filename, ".bin", data, DUMP_FILESIZE);
|
|
|
|
saveFileEML(filename, data, DUMP_FILESIZE, 4);
|
|
|
|
saveFileJSON(filename, jsfEM4x50, data, DUMP_FILESIZE, NULL);
|
2020-06-30 23:59:06 +08:00
|
|
|
return PM3_SUCCESS;
|
2020-06-17 05:25:27 +08:00
|
|
|
}
|
|
|
|
|
2020-12-12 02:55:15 +08:00
|
|
|
int CmdEM4x50EView(const char *Cmd) {
|
|
|
|
|
|
|
|
CLIParserContext *ctx;
|
|
|
|
CLIParserInit(&ctx, "lf em 4x50 eview",
|
|
|
|
"Displays em4x50 content of emulator memory.",
|
|
|
|
"lf em 4x50 eview\n"
|
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
|
|
|
arg_param_end
|
|
|
|
};
|
|
|
|
|
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
// download emulator memory
|
|
|
|
PrintAndLogEx(SUCCESS, "Reading emulator memory...");
|
|
|
|
uint8_t data[DUMP_FILESIZE] = {0x0};
|
|
|
|
if (GetFromDevice(BIG_BUF_EML, data, DUMP_FILESIZE, 0, NULL, 0, NULL, 2500, false) == false) {
|
|
|
|
PrintAndLogEx(WARNING, "Fail, transfer from device time-out");
|
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
2020-12-24 02:51:10 +08:00
|
|
|
|
2020-12-12 02:55:15 +08:00
|
|
|
// valid em4x50 data?
|
|
|
|
uint32_t serial = bytes_to_num(data + 4 * EM4X50_DEVICE_SERIAL, 4);
|
|
|
|
uint32_t device_id = bytes_to_num(data + 4 * EM4X50_DEVICE_ID, 4);
|
|
|
|
if (serial == device_id) {
|
|
|
|
PrintAndLogEx(WARNING, "No valid em4x50 data in emulator memory.");
|
|
|
|
return PM3_ENODATA;
|
|
|
|
}
|
|
|
|
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
|
|
|
for (int i = 0; i < EM4X50_NO_WORDS; i++) {
|
|
|
|
memcpy(words[i].byte, data + i * 4, 4);
|
|
|
|
}
|
|
|
|
print_result(words, 0, EM4X50_NO_WORDS - 1);
|
|
|
|
PrintAndLogEx(NORMAL, "");
|
|
|
|
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Login(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 login",
|
2020-11-20 06:18:04 +08:00
|
|
|
"Login into EM4x50 tag.",
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 login -p 12345678 -> login with password 12345678\n"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-04 04:01:39 +08:00
|
|
|
arg_str1("p", "passsword", "<hex>", "password, 4 bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-11-20 06:18:04 +08:00
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 1, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes");
|
2020-11-02 05:51:32 +08:00
|
|
|
return PM3_EINVARG;
|
2020-12-12 21:46:40 +08:00
|
|
|
}
|
2020-11-20 06:18:04 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
uint32_t password = BYTES2UINT32(pwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
|
|
|
|
// start
|
|
|
|
clearCommandBuffer();
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2020-11-20 06:18:04 +08:00
|
|
|
SendCommandNG(CMD_LF_EM4X50_LOGIN, (uint8_t *)&password, sizeof(password));
|
|
|
|
WaitForResponse(CMD_LF_EM4X50_LOGIN, &resp);
|
|
|
|
|
|
|
|
// print response
|
|
|
|
if (resp.status == PM3_SUCCESS)
|
|
|
|
PrintAndLogEx(SUCCESS, "Login " _GREEN_("ok"));
|
|
|
|
else
|
|
|
|
PrintAndLogEx(FAILED, "Login " _RED_("failed"));
|
|
|
|
|
|
|
|
return resp.status;
|
|
|
|
}
|
|
|
|
|
|
|
|
int CmdEM4x50Brute(const char *Cmd) {
|
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 brute",
|
2020-12-09 19:18:01 +08:00
|
|
|
"Tries to bruteforce the password of a EM4x50.\n"
|
|
|
|
"Function can be stopped by pressing pm3 button.",
|
|
|
|
"lf em 4x50 brute --first 12330000 --last 12340000 -> tries pwds from 0x12330000 to 0x1234000000\n"
|
2020-11-20 06:18:04 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str1(NULL, "first", "<hex>", "first password (start), 4 bytes, lsb"),
|
|
|
|
arg_str1(NULL, "last", "<hex>", "last password (stop), 4 bytes, lsb"),
|
2020-11-20 06:18:04 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int first_len = 0;
|
2020-12-12 21:46:40 +08:00
|
|
|
uint8_t first[4] = {0, 0, 0, 0};
|
2020-12-09 19:18:01 +08:00
|
|
|
CLIGetHexWithReturn(ctx, 1, first, &first_len);
|
|
|
|
int last_len = 0;
|
2020-12-12 21:46:40 +08:00
|
|
|
uint8_t last[4] = {0, 0, 0, 0};
|
2020-12-09 19:18:01 +08:00
|
|
|
CLIGetHexWithReturn(ctx, 2, last, &last_len);
|
|
|
|
CLIParserFree(ctx);
|
2020-11-20 06:18:04 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (first_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes");
|
2020-11-02 05:51:32 +08:00
|
|
|
return PM3_EINVARG;
|
2020-12-12 21:46:40 +08:00
|
|
|
}
|
|
|
|
if (last_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes");
|
|
|
|
return PM3_EINVARG;
|
|
|
|
}
|
2020-06-17 05:25:27 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
em4x50_data_t etd;
|
|
|
|
etd.password1 = BYTES2UINT32(first);
|
|
|
|
etd.password2 = BYTES2UINT32(last);
|
|
|
|
|
|
|
|
// 27 passwords/second (empirical value)
|
2020-12-12 21:46:40 +08:00
|
|
|
const int speed = 27;
|
2020-06-17 05:25:27 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// print some information
|
2020-12-09 19:18:01 +08:00
|
|
|
int no_iter = etd.password2 - etd.password1 + 1;
|
|
|
|
int dur_s = no_iter / speed;
|
|
|
|
int dur_h = dur_s / 3600;
|
|
|
|
int dur_m = (dur_s - dur_h * 3600) / 60;
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
dur_s -= dur_h * 3600 + dur_m * 60;
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(INFO, "Trying %i passwords in range [0x%08x, 0x%08x]"
|
2020-12-12 21:46:40 +08:00
|
|
|
, no_iter
|
|
|
|
, etd.password1
|
|
|
|
, etd.password2
|
|
|
|
);
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(INFO, "Estimated duration: %ih%im%is", dur_h, dur_m, dur_s);
|
|
|
|
|
|
|
|
// start
|
2020-06-17 05:25:27 +08:00
|
|
|
clearCommandBuffer();
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2020-11-20 06:18:04 +08:00
|
|
|
SendCommandNG(CMD_LF_EM4X50_BRUTE, (uint8_t *)&etd, sizeof(etd));
|
|
|
|
WaitForResponse(CMD_LF_EM4X50_BRUTE, &resp);
|
2020-06-17 05:25:27 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// print response
|
2020-12-09 19:18:01 +08:00
|
|
|
if (resp.status == PM3_SUCCESS)
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(SUCCESS, "Password " _GREEN_("found") ": 0x%08x", resp.data.asDwords[0]);
|
|
|
|
else
|
|
|
|
PrintAndLogEx(FAILED, "Password: " _RED_("not found"));
|
|
|
|
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// upload passwords from given dictionary to device and start check;
|
|
|
|
// if no filename is given dictionary "t55xx_default_pwds.dic" is used
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Chk(const char *Cmd) {
|
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 chk",
|
2020-11-20 06:18:04 +08:00
|
|
|
"Dictionary attack against EM4x50.",
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 chk -> uses T55xx default dictionary\n"
|
|
|
|
"lf em 4x50 chk -f my.dic"
|
2020-11-20 06:18:04 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
|
|
|
arg_str0("f", "filename", "<filename>", "dictionary filename"),
|
|
|
|
arg_param_end
|
|
|
|
};
|
|
|
|
|
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int fnlen = 0;
|
|
|
|
char filename[FILE_PATH_SIZE] = {0};
|
|
|
|
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
|
2020-11-20 06:18:04 +08:00
|
|
|
CLIParserFree(ctx);
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (IfPm3Flash() == false) {
|
|
|
|
PrintAndLogEx(WARNING, "no flash memory available");
|
|
|
|
return PM3_EFLASH;
|
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// no filename -> default = t55xx_default_pwds
|
|
|
|
if (strlen(filename) == 0) {
|
|
|
|
snprintf(filename, sizeof(filename), "t55xx_default_pwds");
|
|
|
|
PrintAndLogEx(INFO, "treating file as T55xx keys");
|
2020-06-17 05:25:27 +08:00
|
|
|
}
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
size_t datalen = 0;
|
|
|
|
uint8_t data[FLASH_MEM_MAX_SIZE] = {0x0};
|
|
|
|
uint8_t *keys = data;
|
|
|
|
uint32_t key_count = 0;
|
|
|
|
|
|
|
|
int res = loadFileDICTIONARY(filename, data, &datalen, 4, &key_count);
|
2020-11-20 06:18:04 +08:00
|
|
|
if (res || !key_count)
|
|
|
|
return PM3_EFILE;
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(INFO, "You can cancel this operation by pressing the pm3 button");
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
int status = PM3_EFAILED;
|
|
|
|
int keyblock = 2000; // block with 2000 bytes -> 500 keys
|
|
|
|
uint8_t destfn[32] = "em4x50_chk.bin";
|
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
PacketResponseNG resp;
|
2020-12-09 19:18:01 +08:00
|
|
|
int bytes_remaining = datalen;
|
2020-12-06 06:47:53 +08:00
|
|
|
while (bytes_remaining > 0) {
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-12-06 06:47:53 +08:00
|
|
|
PrintAndLogEx(INPLACE, "Remaining keys: %i ", bytes_remaining / 4);
|
|
|
|
|
2020-12-05 05:38:48 +08:00
|
|
|
// upload to flash.
|
2020-12-06 06:47:53 +08:00
|
|
|
datalen = MIN(bytes_remaining, keyblock);
|
2021-03-09 21:38:31 +08:00
|
|
|
res = flashmem_spiffs_load((char*)destfn, keys, datalen);
|
2020-11-20 06:18:04 +08:00
|
|
|
if (res != PM3_SUCCESS) {
|
2020-12-05 05:42:54 +08:00
|
|
|
PrintAndLogEx(WARNING, "SPIFFS upload failed");
|
2020-11-20 06:18:04 +08:00
|
|
|
return res;
|
|
|
|
}
|
2020-12-06 06:47:53 +08:00
|
|
|
|
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_CHK, destfn, sizeof(destfn));
|
|
|
|
WaitForResponseTimeoutW(CMD_LF_EM4X50_CHK, &resp, -1, false);
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-12-06 06:47:53 +08:00
|
|
|
status = resp.status;
|
|
|
|
if ((status == PM3_SUCCESS) || (status == PM3_EOPABORTED))
|
|
|
|
break;
|
|
|
|
|
|
|
|
bytes_remaining -= keyblock;
|
|
|
|
keys += keyblock;
|
2020-11-20 06:18:04 +08:00
|
|
|
}
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
PrintAndLogEx(NORMAL, "");
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// print response
|
|
|
|
if (status == PM3_SUCCESS) {
|
|
|
|
PrintAndLogEx(SUCCESS, "Key " _GREEN_("found: %02x %02x %02x %02x"),
|
|
|
|
resp.data.asBytes[3],
|
|
|
|
resp.data.asBytes[2],
|
|
|
|
resp.data.asBytes[1],
|
|
|
|
resp.data.asBytes[0]
|
2020-12-12 21:46:40 +08:00
|
|
|
);
|
2020-11-20 06:18:04 +08:00
|
|
|
} else {
|
|
|
|
PrintAndLogEx(FAILED, "No key found");
|
|
|
|
}
|
|
|
|
|
|
|
|
PrintAndLogEx(INFO, "Done");
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
//quick test for EM4x50 tag
|
|
|
|
bool detect_4x50_block(void) {
|
|
|
|
em4x50_data_t etd = {
|
|
|
|
.pwd_given = false,
|
|
|
|
.addr_given = true,
|
2020-12-20 04:27:03 +08:00
|
|
|
.addresses = (EM4X50_DEVICE_SERIAL << 8) | EM4X50_DEVICE_SERIAL,
|
2020-11-20 06:18:04 +08:00
|
|
|
};
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
|
|
|
return (em4x50_read(&etd, words) == PM3_SUCCESS);
|
|
|
|
}
|
2020-06-29 03:35:06 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
int read_em4x50_uid(void) {
|
|
|
|
em4x50_data_t etd = {
|
|
|
|
.pwd_given = false,
|
|
|
|
.addr_given = true,
|
|
|
|
.addresses = (EM4X50_DEVICE_SERIAL << 8) | EM4X50_DEVICE_SERIAL,
|
|
|
|
};
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
|
|
|
int res = em4x50_read(&etd, words);
|
|
|
|
if (res == PM3_SUCCESS)
|
|
|
|
PrintAndLogEx(INFO, " Serial: " _GREEN_("%s"), sprint_hex(words[EM4X50_DEVICE_SERIAL].byte, 4));
|
|
|
|
return res;
|
2020-06-17 05:25:27 +08:00
|
|
|
}
|
2020-06-26 20:20:46 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// envoke reading
|
|
|
|
// - with given address (option b) (and optional password if address is
|
|
|
|
// read protected) -> selective read mode
|
2020-10-28 02:16:54 +08:00
|
|
|
int em4x50_read(em4x50_data_t *etd, em4x50_word_t *out) {
|
2020-07-01 00:50:38 +08:00
|
|
|
|
2020-06-30 23:59:06 +08:00
|
|
|
em4x50_data_t edata = { .pwd_given = false, .addr_given = false };
|
2020-07-01 00:50:38 +08:00
|
|
|
|
2020-06-30 23:43:47 +08:00
|
|
|
if (etd != NULL) {
|
|
|
|
edata = *etd;
|
|
|
|
}
|
2020-06-29 03:35:06 +08:00
|
|
|
|
2020-06-30 23:43:47 +08:00
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_READ, (uint8_t *)&edata, sizeof(edata));
|
2020-06-26 20:20:46 +08:00
|
|
|
|
2020-06-30 23:43:47 +08:00
|
|
|
PacketResponseNG resp;
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_READ, &resp, TIMEOUT_CMD)) {
|
2020-09-06 05:57:06 +08:00
|
|
|
PrintAndLogEx(WARNING, "(em4x50) timeout while waiting for reply.");
|
2020-06-30 23:43:47 +08:00
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
2020-07-01 00:50:38 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
if (resp.status != PM3_SUCCESS)
|
2020-06-30 23:43:47 +08:00
|
|
|
return PM3_ESOFT;
|
2020-07-01 00:50:38 +08:00
|
|
|
|
2020-06-30 23:43:47 +08:00
|
|
|
uint8_t *data = resp.data.asBytes;
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
2020-10-28 02:16:54 +08:00
|
|
|
prepare_result(data, etd->addresses & 0xFF, (etd->addresses >> 8) & 0xFF, words);
|
2020-06-26 20:20:46 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
if (out != NULL)
|
2020-06-30 23:43:47 +08:00
|
|
|
memcpy(out, &words, sizeof(em4x50_word_t) * EM4X50_NO_WORDS);
|
2020-07-01 00:50:38 +08:00
|
|
|
|
2020-10-28 02:16:54 +08:00
|
|
|
print_result(words, etd->addresses & 0xFF, (etd->addresses >> 8) & 0xFF);
|
2020-09-05 19:25:57 +08:00
|
|
|
|
2020-06-30 23:43:47 +08:00
|
|
|
return PM3_SUCCESS;
|
2020-06-26 20:20:46 +08:00
|
|
|
}
|
|
|
|
|
2020-06-30 23:43:47 +08:00
|
|
|
int CmdEM4x50Read(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2021-03-10 05:02:08 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 rdbl",
|
2020-11-13 07:50:49 +08:00
|
|
|
"Reads single EM4x50 block/word.",
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 rdbl -b 3\n"
|
|
|
|
"lf em 4x50 rdbl -b 32 -p 12345678 -> reads block 32 with pwd 0x12345678\n"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-04 04:01:39 +08:00
|
|
|
arg_int1("b", "block", "<dec>", "block/word address"),
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str0("p", "pwd", "<hex>", "password, 4 hex bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-06-26 20:20:46 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
int addr = arg_get_int_def(ctx, 1, 0);
|
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 2, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
if (addr <= 0 || addr >= EM4X50_NO_WORDS) {
|
|
|
|
return PM3_EINVARG;
|
2020-12-12 21:46:40 +08:00
|
|
|
}
|
2020-10-22 06:42:18 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
em4x50_data_t etd;
|
|
|
|
|
|
|
|
// init
|
|
|
|
memset(&etd, 0x00, sizeof(em4x50_data_t));
|
|
|
|
etd.addr_given = false;
|
|
|
|
etd.pwd_given = false;
|
|
|
|
etd.addresses = (addr << 8) | addr;
|
|
|
|
etd.addr_given = true;
|
|
|
|
|
|
|
|
if (pwd_len) {
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
2020-11-02 05:51:32 +08:00
|
|
|
return PM3_EINVARG;
|
2020-11-20 06:18:04 +08:00
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
etd.pwd_given = true;
|
|
|
|
}
|
2020-11-02 05:51:32 +08:00
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
return em4x50_read(&etd, NULL);
|
2020-09-05 19:25:57 +08:00
|
|
|
}
|
2020-09-28 05:22:51 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// envoke reading of a EM4x50 tag which has to be on the antenna because
|
|
|
|
// decoding is done by the device (not on client side)
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Info(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 info",
|
2020-11-20 06:18:04 +08:00
|
|
|
"Tag information EM4x50.",
|
2020-12-07 06:14:41 +08:00
|
|
|
"lf em 4x50 info\n"
|
2020-12-20 05:00:48 +08:00
|
|
|
"lf em 4x50 info -v -> show data section\n"
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 info -p 12345678 -> uses pwd 0x12345678\n"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
2020-09-28 05:39:04 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str0("p", "pwd", "<hex>", "password, 4 hex bytes, lsb"),
|
2020-12-20 05:00:48 +08:00
|
|
|
arg_lit0("v", "verbose", "additional output of data section"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-10-22 06:42:18 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int pwd_len = 0;
|
2020-12-12 21:46:40 +08:00
|
|
|
uint8_t pwd[4] = {0x0};
|
2020-12-09 19:18:01 +08:00
|
|
|
CLIGetHexWithReturn(ctx, 1, pwd, &pwd_len);
|
2020-12-20 05:00:48 +08:00
|
|
|
bool verb = arg_get_lit(ctx, 2);
|
2020-12-09 19:18:01 +08:00
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
em4x50_data_t etd = {.pwd_given = false};
|
2020-12-09 19:18:01 +08:00
|
|
|
if (pwd_len) {
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
etd.pwd_given = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-09-28 05:39:04 +08:00
|
|
|
clearCommandBuffer();
|
2020-11-20 06:18:04 +08:00
|
|
|
SendCommandNG(CMD_LF_EM4X50_INFO, (uint8_t *)&etd, sizeof(etd));
|
|
|
|
PacketResponseNG resp;
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_INFO, &resp, TIMEOUT_CMD)) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
if (resp.status == PM3_SUCCESS)
|
2020-12-20 05:00:48 +08:00
|
|
|
print_info_result(resp.data.asBytes, verb);
|
2020-09-28 05:39:04 +08:00
|
|
|
else
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(FAILED, "Reading tag " _RED_("failed"));
|
2020-09-28 05:39:04 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
return resp.status;
|
2020-09-28 05:39:04 +08:00
|
|
|
}
|
2020-10-06 04:59:08 +08:00
|
|
|
|
2020-11-30 06:59:36 +08:00
|
|
|
int CmdEM4x50Reader(const char *Cmd) {
|
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 reader",
|
2020-11-30 06:59:36 +08:00
|
|
|
"Shows standard read data of EM4x50 tag.",
|
2020-12-07 06:14:41 +08:00
|
|
|
"lf em 4x50 reader\n"
|
|
|
|
"lf em 4x50 reader -@ -> continuous reader mode"
|
2020-11-30 06:59:36 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
|
|
|
arg_lit0("@", NULL, "optional - continuous reader mode"),
|
|
|
|
arg_param_end
|
|
|
|
};
|
|
|
|
|
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
|
|
|
bool cm = arg_get_lit(ctx, 1);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
// start
|
|
|
|
do {
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2020-11-30 06:59:36 +08:00
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_READER, 0, 0);
|
2020-12-01 03:31:02 +08:00
|
|
|
WaitForResponseTimeoutW(CMD_LF_EM4X50_READER, &resp, -1, false);
|
2020-11-30 06:59:36 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// iceman, misuse of return status code.
|
|
|
|
int now = resp.status;
|
|
|
|
|
2020-11-30 06:59:36 +08:00
|
|
|
if (now > 0) {
|
|
|
|
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
|
|
|
prepare_result(resp.data.asBytes, 0, now - 1, words);
|
|
|
|
|
|
|
|
PrintAndLogEx(NORMAL, "");
|
|
|
|
PrintAndLogEx(INFO, " word (msb) | word (lsb) ");
|
|
|
|
PrintAndLogEx(INFO, "-------------+-------------");
|
|
|
|
|
|
|
|
for (int i = 0; i < now; i++) {
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
char r[30];
|
|
|
|
memset(r, 0, sizeof(r));
|
|
|
|
for (int j = 3; j >= 0; j--) {
|
2020-11-30 06:59:36 +08:00
|
|
|
sprintf(r + strlen(r), "%02x ", reflect8(words[i].byte[j]));
|
2020-12-09 19:18:01 +08:00
|
|
|
}
|
2020-11-30 06:59:36 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(INFO, _GREEN_(" %s") "| %s", sprint_hex(words[i].byte, 4), r);
|
2020-11-30 06:59:36 +08:00
|
|
|
}
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-30 06:59:36 +08:00
|
|
|
PrintAndLogEx(INFO, "-------------+-------------");
|
|
|
|
}
|
|
|
|
} while (cm && !kbd_enter_pressed());
|
|
|
|
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Dump(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 dump",
|
2020-11-20 06:18:04 +08:00
|
|
|
"Reads all blocks/words from EM4x50 tag and saves dump in bin/eml/json format.",
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 dump\n"
|
|
|
|
"lf em 4x50 dump -f mydump.eml\n"
|
2020-12-07 06:14:41 +08:00
|
|
|
"lf em 4x50 dump -p 12345678\n"
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 dump -f mydump.eml -p 12345678"
|
2020-11-20 06:18:04 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
|
|
|
arg_str0("f", "filename", "<filename>", "dump filename (bin/eml/json)"),
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str0("p", "pwd", "<hex>", "password, 4 hex bytes, lsb"),
|
2020-11-20 06:18:04 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
|
|
|
|
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int fnLen = 0;
|
|
|
|
char filename[FILE_PATH_SIZE] = {0};
|
|
|
|
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnLen);
|
|
|
|
|
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 2, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
em4x50_data_t etd = {.pwd_given = false};
|
|
|
|
|
|
|
|
if (pwd_len) {
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes");
|
|
|
|
CLIParserFree(ctx);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
etd.pwd_given = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
PrintAndLogEx(INFO, "Reading EM4x50 tag");
|
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_INFO, (uint8_t *)&etd, sizeof(etd));
|
|
|
|
PacketResponseNG resp;
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_INFO, &resp, TIMEOUT_CMD)) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (resp.status != PM3_SUCCESS) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(FAILED, "Reading tag " _RED_("failed"));
|
|
|
|
return PM3_ESOFT;
|
|
|
|
}
|
|
|
|
|
|
|
|
// structured format
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
|
|
|
prepare_result(resp.data.asBytes, 0, EM4X50_NO_WORDS - 1, words);
|
|
|
|
|
|
|
|
// result output
|
|
|
|
PrintAndLogEx(INFO, _YELLOW_("EM4x50 data:"));
|
|
|
|
print_result(words, 0, EM4X50_NO_WORDS - 1);
|
|
|
|
|
|
|
|
// user supplied filename?
|
|
|
|
if (fnLen == 0) {
|
|
|
|
PrintAndLogEx(INFO, "Using UID as filename");
|
2020-12-09 19:18:01 +08:00
|
|
|
char *fptr = filename;
|
2020-11-20 06:18:04 +08:00
|
|
|
fptr += sprintf(fptr, "lf-4x50-");
|
|
|
|
FillFileNameByUID(fptr, words[EM4X50_DEVICE_ID].byte, "-dump", 4);
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
uint8_t data[DUMP_FILESIZE] = {0};
|
|
|
|
for (int i = 0; i < EM4X50_NO_WORDS; i++) {
|
2020-11-20 06:18:04 +08:00
|
|
|
memcpy(data + (i * 4), words[i].byte, 4);
|
2020-12-09 19:18:01 +08:00
|
|
|
}
|
2020-11-20 06:18:04 +08:00
|
|
|
|
|
|
|
saveFile(filename, ".bin", data, sizeof(data));
|
2020-12-09 19:18:01 +08:00
|
|
|
saveFileEML(filename, data, sizeof(data), 4);
|
2020-11-20 06:18:04 +08:00
|
|
|
saveFileJSON(filename, jsfEM4x50, data, sizeof(data), NULL);
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// envoke writing a single word (32 bit) to a EM4x50 tag
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Write(const char *Cmd) {
|
|
|
|
CLIParserContext *ctx;
|
2020-12-09 19:18:01 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 wrbl",
|
2020-11-20 06:18:04 +08:00
|
|
|
"Writes single block/word to EM4x50 tag.",
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 wrbl -b 3 -d 4f22e7ff \n"
|
|
|
|
"lf em 4x50 wrbl -b 3 -d 4f22e7ff -p 12345678\n"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-04 04:01:39 +08:00
|
|
|
arg_int1("b", "block", "<dec>", "block/word address, dec"),
|
|
|
|
arg_str1("d", "data", "<hex>", "data, 4 bytes, lsb"),
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str0("p", "pwd", "<hex>", "password, 4 bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
int addr = arg_get_int_def(ctx, 1, 0);
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
int word_len = 0;
|
|
|
|
uint8_t word[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 2, word, &word_len);
|
|
|
|
|
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 3, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
if (addr <= 0 || addr >= EM4X50_NO_WORDS) {
|
|
|
|
PrintAndLogEx(FAILED, "address has to be within range [0, 31]");
|
2020-11-02 05:51:32 +08:00
|
|
|
return PM3_EINVARG;
|
2020-12-12 21:46:40 +08:00
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (word_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "word/data length must be 4 bytes instead of %d", word_len);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
2020-11-02 05:51:32 +08:00
|
|
|
}
|
2020-12-09 19:18:01 +08:00
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
em4x50_data_t etd = {.pwd_given = false};
|
2020-12-09 19:18:01 +08:00
|
|
|
if (pwd_len) {
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
2020-11-02 05:51:32 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
2020-11-02 05:51:32 +08:00
|
|
|
etd.pwd_given = true;
|
|
|
|
}
|
2020-10-25 23:39:10 +08:00
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
etd.addresses = (addr << 8) | addr;
|
|
|
|
etd.addr_given = true;
|
|
|
|
etd.word = BYTES2UINT32(word);
|
2020-10-25 23:39:10 +08:00
|
|
|
|
|
|
|
clearCommandBuffer();
|
2020-11-20 06:18:04 +08:00
|
|
|
SendCommandNG(CMD_LF_EM4X50_WRITE, (uint8_t *)&etd, sizeof(etd));
|
2020-10-25 23:39:10 +08:00
|
|
|
PacketResponseNG resp;
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_WRITE, &resp, TIMEOUT_CMD)) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
2020-10-25 23:39:10 +08:00
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
int status = resp.status;
|
2020-11-20 06:18:04 +08:00
|
|
|
if (status == PM3_ETEAROFF)
|
2020-12-09 19:18:01 +08:00
|
|
|
return status;
|
2020-10-25 23:39:10 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
if (status != PM3_SUCCESS) {
|
|
|
|
PrintAndLogEx(FAILED, "Writing " _RED_("failed"));
|
2020-10-25 23:39:10 +08:00
|
|
|
return PM3_ESOFT;
|
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// display result of writing operation in structured format
|
|
|
|
uint8_t *data = resp.data.asBytes;
|
|
|
|
em4x50_word_t words[EM4X50_NO_WORDS];
|
|
|
|
|
|
|
|
prepare_result(data, addr, addr, words);
|
|
|
|
print_result(words, addr, addr);
|
|
|
|
PrintAndLogEx(SUCCESS, "Successfully wrote to tag");
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(HINT, "Try `" _YELLOW_("lf em 4x50 rdbl -a %u") "` - to read your data", addr);
|
2020-10-27 05:11:57 +08:00
|
|
|
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// envokes changing the password of EM4x50 tag
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50WritePwd(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 writepwd",
|
2020-11-20 06:18:04 +08:00
|
|
|
"Writes EM4x50 password.",
|
2020-12-09 19:18:01 +08:00
|
|
|
"lf em 4x50 writepwd -p 4f22e7ff -n 12345678"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str1("p", "pwd", "<hex>", "password, 4 hex bytes, lsb"),
|
|
|
|
arg_str1("n", "new", "<hex>", "new password, 4 hex bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 1, pwd, &pwd_len);
|
|
|
|
|
|
|
|
int npwd_len = 0;
|
|
|
|
uint8_t npwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 2, npwd, &npwd_len);
|
|
|
|
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
em4x50_data_t etd;
|
2020-12-09 19:18:01 +08:00
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
}
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
if (npwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", npwd_len);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password2 = BYTES2UINT32(npwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
}
|
2020-10-27 07:53:50 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2020-11-20 06:18:04 +08:00
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_WRITEPWD, (uint8_t *)&etd, sizeof(etd));
|
2020-11-10 07:39:48 +08:00
|
|
|
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_WRITEPWD, &resp, TIMEOUT_CMD)) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
|
|
|
return PM3_ETIMEOUT;
|
2020-10-27 07:53:50 +08:00
|
|
|
}
|
2020-10-27 05:11:57 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (resp.status == PM3_ETEAROFF)
|
2020-10-27 05:11:57 +08:00
|
|
|
return PM3_SUCCESS;
|
2020-11-20 06:18:04 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (resp.status != PM3_SUCCESS) {
|
|
|
|
PrintAndLogEx(FAILED, "Writing password (" _RED_("failed") ")");
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EFAILED;
|
2020-11-02 05:51:32 +08:00
|
|
|
}
|
2020-10-27 05:11:57 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(SUCCESS, "Writing new password %s (%s)"
|
2020-12-12 21:46:40 +08:00
|
|
|
, sprint_hex_inrow(npwd, sizeof(npwd))
|
|
|
|
, _GREEN_("ok")
|
|
|
|
);
|
2020-10-25 23:39:10 +08:00
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
2020-10-28 01:18:02 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
// fills EM4x50 tag with zeros including password
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Wipe(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 wipe",
|
2020-12-09 19:18:01 +08:00
|
|
|
"Wipes EM4x50 tag by filling it with zeros, including the new password\n"
|
|
|
|
"Must give a password.",
|
|
|
|
"lf em 4x50 wipe -p 12345678"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
2020-10-28 01:18:02 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-04 04:01:39 +08:00
|
|
|
arg_str1("p", "passsword", "<hex>", "password, 4 bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-10-28 01:18:02 +08:00
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 1, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
}
|
2020-10-28 01:18:02 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
em4x50_data_t etd = {.pwd_given = false, .word = 0x0, .password2 = 0x0};
|
|
|
|
|
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
|
|
|
etd.pwd_given = true;
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// clear password
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2020-10-28 01:18:02 +08:00
|
|
|
clearCommandBuffer();
|
2020-11-20 06:18:04 +08:00
|
|
|
SendCommandNG(CMD_LF_EM4X50_WRITEPWD, (uint8_t *)&etd, sizeof(etd));
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_WRITEPWD, &resp, TIMEOUT_CMD)) {
|
2020-10-28 01:18:02 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
if (resp.status == PM3_SUCCESS) {
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(SUCCESS, "Resetting password to 00000000 (" _GREEN_("ok") ")");
|
2020-11-20 06:18:04 +08:00
|
|
|
} else {
|
|
|
|
PrintAndLogEx(FAILED, "Resetting password " _RED_("failed"));
|
|
|
|
return PM3_ESOFT;
|
|
|
|
}
|
|
|
|
|
|
|
|
// from now on new password 0x0
|
|
|
|
etd.password1 = 0x0;
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// clear data (words 1 to 31)
|
|
|
|
for (int i = 1; i < EM4X50_DEVICE_SERIAL; i++) {
|
2020-10-28 01:18:02 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
// no login necessary for blocks 3 to 31
|
|
|
|
etd.pwd_given = (i <= EM4X50_CONTROL);
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(INPLACE, "Wiping block %i", i);
|
2020-10-28 01:18:02 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
etd.addresses = i << 8 | i;
|
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_WRITE, (uint8_t *)&etd, sizeof(etd));
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_WRITE, &resp, TIMEOUT_CMD)) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
|
|
|
return PM3_ETIMEOUT;
|
2020-10-28 01:18:02 +08:00
|
|
|
}
|
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
if (resp.status != PM3_SUCCESS) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(NORMAL, "");
|
|
|
|
PrintAndLogEx(FAILED, "Wiping data " _RED_("failed"));
|
|
|
|
return PM3_ESOFT;
|
|
|
|
}
|
2020-10-28 01:18:02 +08:00
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(NORMAL, "");
|
|
|
|
PrintAndLogEx(INFO, "Done");
|
|
|
|
return PM3_SUCCESS;
|
2020-10-28 01:18:02 +08:00
|
|
|
}
|
2020-10-30 07:41:45 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Restore(const char *Cmd) {
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 restore",
|
2020-12-09 19:18:01 +08:00
|
|
|
"Restores data from dumpfile onto a Em4x50 tag.\n"
|
|
|
|
"if used with -u, the filetemplate `lf-4x50-UID-dump.bin` is used as filename",
|
|
|
|
"lf em 4x50 restore -u 1b5aff5c -> uses lf-4x50-1B5AFF5C-dump.bin\n"
|
|
|
|
"lf em 4x50 restore -f mydump.eml\n"
|
2020-12-07 06:14:41 +08:00
|
|
|
"lf em 4x50 restore -u 1b5aff5c -p 12345678\n"
|
|
|
|
"lf em 4x50 restore -f mydump.eml -p 12345678\n"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
2020-10-30 07:41:45 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str0("u", "uid", "<hex>", "uid, 4 hex bytes, msb"),
|
2020-11-20 06:18:04 +08:00
|
|
|
arg_str0("f", "filename", "<filename>", "dump filename (bin/eml/json)"),
|
2020-12-09 19:18:01 +08:00
|
|
|
arg_str0("p", "pwd", "<hex>", "password, 4 hex bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
2020-10-30 07:41:45 +08:00
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
int uidLen = 0;
|
|
|
|
uint8_t uid[4] = {0x0};
|
2020-11-20 06:18:04 +08:00
|
|
|
CLIGetHexWithReturn(ctx, 1, uid, &uidLen);
|
2020-12-09 19:18:01 +08:00
|
|
|
int fnlen = 0;
|
|
|
|
char filename[FILE_PATH_SIZE] = {0};
|
|
|
|
CLIParamStrToBuf(arg_get_str(ctx, 2), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
|
|
|
|
|
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0x0};
|
|
|
|
CLIGetHexWithReturn(ctx, 3, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
if ((uidLen && fnlen) || (!uidLen && !fnlen)) {
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(FAILED, "either use option 'u' or option 'f'");
|
|
|
|
return PM3_EINVARG;
|
|
|
|
}
|
2020-12-09 19:18:01 +08:00
|
|
|
|
|
|
|
int startblock = EM4X50_CONTROL + 1;
|
|
|
|
em4x50_data_t etd = {.pwd_given = false};
|
|
|
|
|
|
|
|
if (pwd_len) {
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
2020-11-20 06:18:04 +08:00
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
2020-12-04 03:40:58 +08:00
|
|
|
etd.password1 = BYTES2UINT32(pwd);
|
2020-11-20 06:18:04 +08:00
|
|
|
etd.pwd_given = true;
|
2020-12-07 02:26:20 +08:00
|
|
|
// if password is available protection and control word can be restored
|
|
|
|
startblock = EM4X50_PROTECTION;
|
2020-11-20 06:18:04 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (uidLen) {
|
|
|
|
PrintAndLogEx(INFO, "Using UID as filename");
|
|
|
|
char *fptr = filename;
|
|
|
|
fptr += sprintf(fptr, "lf-4x50-");
|
|
|
|
FillFileNameByUID(fptr, uid, "-dump", 4);
|
|
|
|
}
|
2020-10-30 07:41:45 +08:00
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
PrintAndLogEx(INFO, "Restoring " _YELLOW_("%s")" to card", filename);
|
|
|
|
|
2020-10-30 07:41:45 +08:00
|
|
|
// read data from dump file; file type has to be "bin", "eml" or "json"
|
2020-12-09 19:18:01 +08:00
|
|
|
uint8_t data[DUMP_FILESIZE] = {0x0};
|
|
|
|
size_t bytes_read = 0;
|
2020-11-20 06:18:04 +08:00
|
|
|
if (em4x50_load_file(filename, data, DUMP_FILESIZE, &bytes_read) != PM3_SUCCESS)
|
2020-10-30 07:41:45 +08:00
|
|
|
return PM3_EFILE;
|
|
|
|
|
2020-12-07 02:26:20 +08:00
|
|
|
for (int i = startblock; i < EM4X50_DEVICE_SERIAL; i++) {
|
2020-10-30 07:41:45 +08:00
|
|
|
|
2020-12-04 05:00:52 +08:00
|
|
|
PrintAndLogEx(INPLACE, "Restoring block %i", i);
|
|
|
|
|
|
|
|
etd.addresses = i << 8 | i;
|
|
|
|
etd.word = reflect32(BYTES2UINT32((data + 4 * i)));
|
2020-12-12 21:46:40 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2020-12-04 05:00:52 +08:00
|
|
|
clearCommandBuffer();
|
|
|
|
SendCommandNG(CMD_LF_EM4X50_WRITE, (uint8_t *)&etd, sizeof(etd));
|
2021-02-07 02:59:34 +08:00
|
|
|
if (!WaitForResponseTimeout(CMD_LF_EM4X50_WRITE, &resp, TIMEOUT_CMD)) {
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(NORMAL, "");
|
2020-12-04 05:00:52 +08:00
|
|
|
PrintAndLogEx(WARNING, "Timeout while waiting for reply.");
|
|
|
|
return PM3_ETIMEOUT;
|
|
|
|
}
|
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
if (resp.status != PM3_SUCCESS) {
|
2020-12-04 05:00:52 +08:00
|
|
|
PrintAndLogEx(NORMAL, "");
|
|
|
|
PrintAndLogEx(FAILED, "Restoring data " _RED_("failed"));
|
|
|
|
return PM3_ESOFT;
|
|
|
|
}
|
2020-10-30 07:41:45 +08:00
|
|
|
}
|
2020-11-20 06:18:04 +08:00
|
|
|
|
2020-12-12 21:46:40 +08:00
|
|
|
PrintAndLogEx(NORMAL, "");
|
2020-12-04 05:00:52 +08:00
|
|
|
PrintAndLogEx(INFO, "Done");
|
|
|
|
return PM3_SUCCESS;
|
2020-11-02 05:51:32 +08:00
|
|
|
}
|
|
|
|
|
2020-11-20 06:18:04 +08:00
|
|
|
int CmdEM4x50Sim(const char *Cmd) {
|
2021-01-24 05:38:07 +08:00
|
|
|
|
2021-01-17 02:40:42 +08:00
|
|
|
int status = PM3_EFAILED;
|
2021-01-07 08:22:46 +08:00
|
|
|
uint32_t password = 0;
|
2021-01-24 05:38:07 +08:00
|
|
|
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserContext *ctx;
|
2020-12-07 06:14:41 +08:00
|
|
|
CLIParserInit(&ctx, "lf em 4x50 sim",
|
2020-12-09 19:18:01 +08:00
|
|
|
"Simulates a EM4x50 tag.\n"
|
|
|
|
"Upload using `lf em 4x50 eload`",
|
|
|
|
"lf em 4x50 sim"
|
2021-01-07 08:22:46 +08:00
|
|
|
"lf em 4x50 sim -p 27182818 -> uses password for eload data"
|
2020-11-02 05:51:32 +08:00
|
|
|
);
|
|
|
|
|
|
|
|
void *argtable[] = {
|
|
|
|
arg_param_begin,
|
2021-01-07 08:22:46 +08:00
|
|
|
arg_str0("p", "passsword", "<hex>", "password, 4 bytes, lsb"),
|
2020-11-02 05:51:32 +08:00
|
|
|
arg_param_end
|
|
|
|
};
|
|
|
|
|
|
|
|
CLIExecWithReturn(ctx, Cmd, argtable, true);
|
2021-01-07 08:22:46 +08:00
|
|
|
int pwd_len = 0;
|
|
|
|
uint8_t pwd[4] = {0};
|
|
|
|
CLIGetHexWithReturn(ctx, 1, pwd, &pwd_len);
|
|
|
|
CLIParserFree(ctx);
|
|
|
|
|
|
|
|
if (pwd_len) {
|
|
|
|
if (pwd_len != 4) {
|
|
|
|
PrintAndLogEx(FAILED, "password length must be 4 bytes instead of %d", pwd_len);
|
|
|
|
return PM3_EINVARG;
|
|
|
|
} else {
|
|
|
|
password = BYTES2UINT32(pwd);
|
|
|
|
}
|
|
|
|
}
|
2020-11-02 05:51:32 +08:00
|
|
|
CLIParserFree(ctx);
|
2020-11-11 08:11:09 +08:00
|
|
|
|
2020-12-09 19:18:01 +08:00
|
|
|
PrintAndLogEx(INFO, "Simulating data from emulator memory");
|
2020-11-20 06:18:04 +08:00
|
|
|
|
|
|
|
clearCommandBuffer();
|
2021-01-07 08:22:46 +08:00
|
|
|
SendCommandNG(CMD_LF_EM4X50_SIM, (uint8_t *)&password, sizeof(password));
|
2020-12-09 19:18:01 +08:00
|
|
|
PacketResponseNG resp;
|
2021-01-24 05:38:07 +08:00
|
|
|
|
2021-01-16 08:59:02 +08:00
|
|
|
PrintAndLogEx(INFO, "Press pm3-button to abort simulation");
|
|
|
|
bool keypress = kbd_enter_pressed();
|
|
|
|
while (keypress == false) {
|
|
|
|
keypress = kbd_enter_pressed();
|
|
|
|
|
|
|
|
if (WaitForResponseTimeout(CMD_LF_EM4X50_SIM, &resp, 1500)) {
|
2021-01-17 02:40:42 +08:00
|
|
|
status = resp.status;
|
2021-01-16 08:59:02 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
if (keypress) {
|
|
|
|
SendCommandNG(CMD_BREAK_LOOP, NULL, 0);
|
2021-01-17 02:40:42 +08:00
|
|
|
status = PM3_EOPABORTED;
|
2021-01-16 08:59:02 +08:00
|
|
|
}
|
|
|
|
|
2021-01-17 02:40:42 +08:00
|
|
|
if ((status == PM3_SUCCESS) || (status == PM3_EOPABORTED))
|
|
|
|
PrintAndLogEx(INFO, "Done");
|
2020-11-21 05:03:19 +08:00
|
|
|
else
|
2021-01-16 08:59:02 +08:00
|
|
|
PrintAndLogEx(FAILED, "No valid em4x50 data in memory");
|
2020-11-02 05:51:32 +08:00
|
|
|
|
2020-11-21 05:03:19 +08:00
|
|
|
return resp.status;
|
2020-10-30 07:41:45 +08:00
|
|
|
}
|
2020-12-07 03:40:46 +08:00
|
|
|
|
2020-12-04 07:11:57 +08:00
|
|
|
static command_t CommandTable[] = {
|
2020-12-07 06:08:43 +08:00
|
|
|
{"help", CmdHelp, AlwaysAvailable, "This help"},
|
2020-12-09 19:18:01 +08:00
|
|
|
{"brute", CmdEM4x50Brute, IfPm3EM4x50, "guess password of EM4x50"},
|
|
|
|
{"chk", CmdEM4x50Chk, IfPm3EM4x50, "check passwords from dictionary"},
|
2020-12-07 06:00:26 +08:00
|
|
|
{"dump", CmdEM4x50Dump, IfPm3EM4x50, "dump EM4x50 tag"},
|
|
|
|
{"info", CmdEM4x50Info, IfPm3EM4x50, "tag information EM4x50"},
|
2020-12-09 19:18:01 +08:00
|
|
|
{"login", CmdEM4x50Login, IfPm3EM4x50, "login into EM4x50"},
|
|
|
|
{"rdbl", CmdEM4x50Read, IfPm3EM4x50, "read word data from EM4x50"},
|
|
|
|
{"wrbl", CmdEM4x50Write, IfPm3EM4x50, "write word data to EM4x50"},
|
2020-12-12 21:46:40 +08:00
|
|
|
{"writepwd", CmdEM4x50WritePwd, IfPm3EM4x50, "change password of EM4x50"},
|
2020-12-07 06:00:26 +08:00
|
|
|
{"wipe", CmdEM4x50Wipe, IfPm3EM4x50, "wipe EM4x50 tag"},
|
2020-12-09 19:18:01 +08:00
|
|
|
{"reader", CmdEM4x50Reader, IfPm3EM4x50, "show standard read mode data of EM4x50"},
|
2020-12-12 21:46:40 +08:00
|
|
|
{"restore", CmdEM4x50Restore, IfPm3EM4x50, "restore EM4x50 dump to tag"},
|
2020-12-07 06:00:26 +08:00
|
|
|
{"sim", CmdEM4x50Sim, IfPm3EM4x50, "simulate EM4x50 tag"},
|
2020-12-12 02:55:15 +08:00
|
|
|
{"eload", CmdEM4x50ELoad, IfPm3EM4x50, "upload dump of EM4x50 to emulator memory"},
|
|
|
|
{"esave", CmdEM4x50ESave, IfPm3EM4x50, "save emulator memory to file"},
|
|
|
|
{"eview", CmdEM4x50EView, IfPm3EM4x50, "view EM4x50 content in emulator memory"},
|
2020-12-04 07:11:57 +08:00
|
|
|
{NULL, NULL, NULL, NULL}
|
|
|
|
};
|
|
|
|
|
|
|
|
static int CmdHelp(const char *Cmd) {
|
|
|
|
(void)Cmd; // Cmd is not used so far
|
|
|
|
CmdsHelp(CommandTable);
|
|
|
|
return PM3_SUCCESS;
|
|
|
|
}
|
|
|
|
|
|
|
|
int CmdLFEM4X50(const char *Cmd) {
|
|
|
|
clearCommandBuffer();
|
|
|
|
return CmdsParse(CommandTable, Cmd);
|
|
|
|
}
|
2020-12-28 05:22:44 +08:00
|
|
|
|