mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2024-09-20 15:26:13 +08:00
252 lines
8.2 KiB
C
252 lines
8.2 KiB
C
//-----------------------------------------------------------------------------
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// Copyright (C) 2019 iceman
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//
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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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// Thinfilm commands
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//-----------------------------------------------------------------------------
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#include "cmdhfthinfilm.h"
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include "cmdparser.h" // command_t
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#include "comms.h"
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#include "cmdtrace.h"
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#include "crc16.h"
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#include "ui.h"
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#include "cmdhf14a.h" // manufacture
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static int CmdHelp(const char *Cmd);
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static int usage_thinfilm_info(void) {
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PrintAndLogEx(NORMAL, "Usage: hf thinfilm info [h]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h this help");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " hf thinfilm info");
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return PM3_SUCCESS;
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}
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static int usage_thinfilm_sim(void) {
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PrintAndLogEx(NORMAL, "Usage: hf thinfilm sim [h] [d <data>]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h this help");
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PrintAndLogEx(NORMAL, " d <bytes> bytes to send, in hex");
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PrintAndLogEx(NORMAL, " r raw, provided bytes should include CRC");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " hf thinfilm sim d B70470726f786d61726b2e636f6d");
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return PM3_SUCCESS;
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}
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// Printing function based upon the code in libnfc
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// ref
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// https://github.com/nfc-tools/libnfc/blob/master/utils/nfc-barcode.c
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static int print_barcode(uint8_t *barcode, const size_t barcode_len, bool verbose) {
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PrintAndLogEx(NORMAL, "");
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// remove start bit
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uint8_t mb = barcode[0] & ~0x80;
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PrintAndLogEx(SUCCESS, " Manufacturer : "_YELLOW_("%s") "[0x%02X]", getTagInfo(mb), mb);
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if (verbose) {
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PrintAndLogEx(SUCCESS, " Data format : "_YELLOW_("%02X"), barcode[1]);
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if (barcode_len > 2) {
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uint8_t b1, b2;
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compute_crc(CRC_14443_A, barcode, barcode_len - 2, &b1, &b2);
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bool isok = (barcode[barcode_len - 1] == b1 && barcode[barcode_len - 2] == b2);
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PrintAndLogEx(SUCCESS, " Checksum : "_YELLOW_("%02X %02X")"- %s", b2, b1, (isok) ? _GREEN_("OK") : _RED_("fail"));
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} else {
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PrintAndLogEx(SUCCESS, " Checksum : "_YELLOW_("too few data for checksum")"- " _RED_("fail"));
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}
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PrintAndLogEx(SUCCESS, " Data len (bits) : "_YELLOW_("%zu")"- %s", barcode_len * 8, (barcode_len == 16 || barcode_len == 32) ? _GREEN_("OK") : _YELLOW_("warning"));
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PrintAndLogEx(SUCCESS, " Raw data : "_YELLOW_("%s"), sprint_hex(barcode, barcode_len));
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if (barcode_len < 4) // too few to go to next decoding stages
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return PM3_ESOFT;
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}
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char s[45];
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memset(s, 0x00, sizeof(s));
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switch (barcode[1]) {
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case 0:
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PrintAndLogEx(SUCCESS, " Data format : Reserved for allocation by tag manufacturer");
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return PM3_SUCCESS;
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case 1:
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snprintf(s, sizeof(s), "http://www.");
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break;
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case 2:
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snprintf(s, sizeof(s), "https://www.");
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break;
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case 3:
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snprintf(s, sizeof(s), "http://");
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break;
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case 4:
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snprintf(s, sizeof(s), "https://");
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break;
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case 5:
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if (barcode_len < 16) {
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PrintAndLogEx(WARNING, "EPC: (partial data) %s", sprint_hex(barcode + 2, barcode_len - 2));
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return PM3_ESOFT;
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}
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PrintAndLogEx(SUCCESS, "EPC: %s", sprint_hex(barcode + 2, 12));
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return PM3_SUCCESS;
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default:
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PrintAndLogEx(SUCCESS, " Data format : RFU Reserved for future use (%02X)", barcode[1]);
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if (!verbose)
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PrintAndLogEx(SUCCESS, "Raw data with CRC: "_YELLOW_("%s"), sprint_hex(barcode, barcode_len));
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return PM3_SUCCESS;
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}
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snprintf(s + strlen(s), barcode_len - 3, (const char *)&barcode[2], barcode_len - 4);
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for (uint8_t i = 0; i < strlen(s); i++) {
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// terminate string
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if ((uint8_t) s[i] == 0xFE) {
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s[i] = 0;
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break;
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}
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}
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PrintAndLogEx(SUCCESS, " Decoded NFC URL : "_YELLOW_("%s"), s);
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return PM3_SUCCESS;
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}
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static int CmdHfThinFilmInfo(const char *Cmd) {
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uint8_t cmdp = 0;
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bool errors = false;
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while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
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switch (tolower(param_getchar(Cmd, cmdp))) {
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case 'h':
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return usage_thinfilm_info();
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default:
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PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
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errors = true;
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break;
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}
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}
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//Validations
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if (errors) {
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usage_thinfilm_info();
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return PM3_EINVARG;
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}
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return infoThinFilm(true);
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}
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int infoThinFilm(bool verbose) {
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clearCommandBuffer();
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SendCommandNG(CMD_HF_THINFILM_READ, NULL, 0);
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PacketResponseNG resp;
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if (!WaitForResponseTimeout(CMD_HF_THINFILM_READ, &resp, 1500)) {
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PrintAndLogEx(WARNING, "timeout while waiting for reply.");
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return PM3_ETIMEOUT;
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}
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if (resp.status == PM3_SUCCESS) {
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if (resp.length == 16 || resp.length == 32) {
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print_barcode(resp.data.asBytes, resp.length, verbose);
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} else {
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if (verbose)
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PrintAndLogEx(WARNING, "Response is wrong length. (%d)", resp.length);
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return PM3_ESOFT;
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}
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}
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return resp.status;
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}
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static int CmdHfThinFilmSim(const char *Cmd) {
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uint8_t cmdp = 0;
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uint8_t data[512];
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int datalen = 0;
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bool addcrc = true;
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bool errors = false;
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while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
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switch (tolower(param_getchar(Cmd, cmdp))) {
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case 'h':
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return usage_thinfilm_sim();
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case 'd':
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// Retrieve the data
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param_gethex_ex(Cmd, cmdp + 1, data, &datalen);
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datalen >>= 1;
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cmdp += 2;
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break;
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case 'r':
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addcrc = false;
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cmdp++;
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break;
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default:
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PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
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errors = true;
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break;
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}
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}
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//Validations
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if (errors || cmdp == 0 || datalen == 0 || datalen > 512) return usage_thinfilm_sim();
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if (addcrc && datalen <= 510) {
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uint8_t b1, b2;
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compute_crc(CRC_14443_A, data, datalen, &b1, &b2);
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data[datalen++] = b2;
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data[datalen++] = b1;
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}
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clearCommandBuffer();
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SendCommandNG(CMD_HF_THINFILM_SIMULATE, (uint8_t *)&data, datalen);
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PacketResponseNG resp;
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PrintAndLogEx(SUCCESS, "press pm3-button to abort simulation");
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int ret;
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while (!(ret = kbd_enter_pressed())) {
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if (WaitForResponseTimeout(CMD_HF_THINFILM_SIMULATE, &resp, 500) == 0) continue;
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if (resp.status != PM3_SUCCESS) break;
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}
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if (ret) {
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PrintAndLogEx(INFO, "Client side interrupted");
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PrintAndLogEx(WARNING, "Simulation still running on Proxmark3 till next command or button press");
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} else {
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PrintAndLogEx(INFO, "Done");
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}
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return PM3_SUCCESS;
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}
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static int CmdHfThinFilmList(const char *Cmd) {
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(void)Cmd; // Cmd is not used so far
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CmdTraceList("thinfilm");
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return PM3_SUCCESS;
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}
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static command_t CommandTable[] = {
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{"help", CmdHelp, AlwaysAvailable, "This help"},
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{"info", CmdHfThinFilmInfo, IfPm3NfcBarcode, "Tag information"},
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{"list", CmdHfThinFilmList, AlwaysAvailable, "List NFC Barcode / Thinfilm history - not correct"},
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{"sim", CmdHfThinFilmSim, IfPm3NfcBarcode, "Fake Thinfilm tag"},
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{NULL, NULL, NULL, NULL}
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};
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static int CmdHelp(const char *Cmd) {
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(void)Cmd; // Cmd is not used so far
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CmdsHelp(CommandTable);
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return PM3_SUCCESS;
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}
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int CmdHFThinfilm(const char *Cmd) {
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clearCommandBuffer();
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return CmdsParse(CommandTable, Cmd);
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}
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