-//-----------------------------------------------------------------------------
-// Copyright (C) 2015 Piwi
-//
-// This code is licensed to you under the terms of the GNU GPL, version 2 or,
-// at your option, any later version. See the LICENSE.txt file for the text of
-// the license.
-//-----------------------------------------------------------------------------
-// High frequency Topaz (NFC Type 1) commands
-//-----------------------------------------------------------------------------
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include "cmdmain.h"
-#include "cmdparser.h"
-#include "cmdhftopaz.h"
-#include "cmdhf14a.h"
-#include "ui.h"
-#include "mifare.h"
-#include "proxmark3.h"
-#include "iso14443crc.h"
-#include "protocols.h"
-
-#define TOPAZ_MAX_MEMORY 2048
-
-static struct {
- uint8_t HR01[2];
- uint8_t uid[7];
- uint8_t size;
- uint8_t data_blocks[TOPAZ_MAX_MEMORY/8][8];
- uint8_t *dynamic_lock_areas;
- uint8_t *dynamic_reserved_areas;
-} topaz_tag;
-
-
-static void topaz_switch_on_field(void)
-{
- UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_SELECT | ISO14A_NO_DISCONNECT | ISO14A_TOPAZMODE, 0, 0}};
- SendCommand(&c);
-}
-
-
-static void topaz_switch_off_field(void)
-{
- UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
- SendCommand(&c);
-}
-
-
-static int topaz_send_cmd_raw(uint8_t *cmd, uint8_t len, uint8_t *response)
-{
- UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_NO_DISCONNECT | ISO14A_TOPAZMODE, len, 0}};
- memcpy(c.d.asBytes, cmd, len);
- SendCommand(&c);
-
- UsbCommand resp;
- WaitForResponse(CMD_ACK, &resp);
-
- if (resp.arg[0] > 0) {
- memcpy(response, resp.d.asBytes, resp.arg[0]);
- }
-
- return resp.arg[0];
-}
-
-
-static int topaz_send_cmd(uint8_t *cmd, uint8_t len, uint8_t *response)
-{
- if (len > 1) {
- uint8_t first, second;
- ComputeCrc14443(CRC_14443_B, cmd, len-2, &first, &second);
- cmd[len-2] = first;
- cmd[len-1] = second;
- }
-
- return topaz_send_cmd_raw(cmd, len, response);
-}
-
-
-static int topaz_select(uint8_t *atqa, uint8_t *rid_response)
-{
- // ToDo: implement anticollision
-
- uint8_t wupa_cmd[] = {TOPAZ_WUPA};
- uint8_t rid_cmd[] = {TOPAZ_RID, 0, 0, 0, 0, 0, 0, 0, 0};
-
- topaz_switch_on_field();
-
- if (!topaz_send_cmd(wupa_cmd, sizeof(wupa_cmd), atqa)) {
- topaz_switch_off_field();
- return -1; // WUPA failed
- }
-
- if (!topaz_send_cmd(rid_cmd, sizeof(rid_cmd), rid_response)) {
- topaz_switch_off_field();
- return -2; // RID failed
- }
-
- return 0; // OK
-}
-
-
-static int topaz_rall(uint8_t *uid, uint8_t *response)
-{
- uint8_t rall_cmd[] = {TOPAZ_RALL, 0, 0, 0, 0, 0, 0, 0, 0};
-
- memcpy(&rall_cmd[3], uid, 4);
- if (!topaz_send_cmd(rall_cmd, sizeof(rall_cmd), response)) {
- topaz_switch_off_field();
- return -1; // RALL failed
- }
-
- return 0;
-}
-
-
-static bool topaz_block_is_locked(uint8_t blockno, uint8_t *lockbits)
-{
- if(lockbits[blockno/8] >> (blockno % 8) & 0x01) {
- return true;
- } else {
- return false;
- }
-}
-
-
-static int topaz_print_CC(uint8_t *data)
-{
- if(data[0] != 0xe1) {
- return -1; // no NDEF message
- }
-
- PrintAndLog("Capability Container: %02x %02x %02x %02x", data[0], data[1], data[2], data[3]);
- PrintAndLog(" %02x: NDEF Magic Number", data[0]);
- PrintAndLog(" %02x: version %d.%d supported by tag", data[1], (data[1] & 0xF0) >> 4, data[1] & 0x0f);
- PrintAndLog(" %02x: Physical Memory Size of this tag: %d bytes", data[2], (data[2] + 1) * 8);
- PrintAndLog(" %02x: %s / %s", data[3],
- (data[3] & 0xF0) ? "(RFU)" : "Read access granted without any security",
- (data[3] & 0x0F)==0 ? "Write access granted without any security" : (data[3] & 0x0F)==0x0F ? "No write access granted at all" : "(RFU)");
- return 0;
-}
-
-
-static void get_TLV(uint8_t **TLV_ptr, uint8_t *tag, uint16_t *length, uint8_t **value)
-{
- *length = 0;
- *value = NULL;
-
- *tag = **TLV_ptr;
- *TLV_ptr += 1;
- switch (*tag) {
- case 0x00: // NULL TLV.
- case 0xFE: // Terminator TLV.
- break;
- case 0x01: // Lock Control TLV
- case 0x02: // Reserved Memory TLV
- case 0x03: // NDEF message TLV
- case 0xFD: // proprietary TLV
- *length = **TLV_ptr;
- *TLV_ptr += 1;
- if (*length == 0xff) {
- *length = **TLV_ptr << 8;
- *TLV_ptr += 1;
- *length |= **TLV_ptr;
- *TLV_ptr += 1;
- }
- *value = *TLV_ptr;
- *TLV_ptr += *length;
- break;
- default: // RFU
- break;
- }
-}
-
-
-static bool topaz_print_lock_control_TLVs(uint8_t *memory)
-{
- uint8_t *TLV_ptr = memory;
- uint8_t tag = 0;
- uint16_t length;
- uint8_t *value;
- bool lock_TLV_present = false;
-
- while(*TLV_ptr != 0x03 && *TLV_ptr != 0xFD && *TLV_ptr != 0xFE) {
- // all Lock Control TLVs shall be present before the NDEF message TLV, the proprietary TLV (and the Terminator TLV)
- get_TLV(&TLV_ptr, &tag, &length, &value);
- if (tag == 0x01) { // the Lock Control TLV
- uint8_t pages_addr = value[0] >> 4;
- uint8_t byte_offset = value[0] & 0x0f;
- uint8_t size_in_bits = value[1] ? value[1] : 256;
- uint8_t bytes_per_page = 1 << (value[2] & 0x0f);
- uint8_t bytes_locked_per_bit = 1 << (value[2] >> 4);
- PrintAndLog("Lock Area of %d bits at byte offset 0x%02x. Each Lock Bit locks %d bytes.",
- size_in_bits,
- pages_addr * bytes_per_page + byte_offset,
- bytes_locked_per_bit);
- lock_TLV_present = true;
- }
- }
-
- if (!lock_TLV_present) {
- PrintAndLog("(No Lock Control TLV present)");
- return -1;
- } else {
- return 0;
- }
-}
-
-
-static int topaz_print_reserved_memory_control_TLVs(uint8_t *memory)
-{
- uint8_t *TLV_ptr = memory;
- uint8_t tag = 0;
- uint16_t length;
- uint8_t *value;
- bool reserved_memory_control_TLV_present = false;
-
- while(*TLV_ptr != 0x03 && *TLV_ptr != 0xFD && *TLV_ptr != 0xFE) {
- // all Reserved Memory Control TLVs shall be present before the NDEF message TLV, the proprietary TLV (and the Terminator TLV)
- get_TLV(&TLV_ptr, &tag, &length, &value);
- if (tag == 0x02) { // the Reserved Memory Control TLV
- uint8_t pages_addr = value[0] >> 4;
- uint8_t byte_offset = value[0] & 0x0f;
- uint8_t size_in_bytes = value[1] ? value[1] : 256;
- uint8_t bytes_per_page = 1 << (value[2] & 0x0f);
- PrintAndLog("Reserved Memory of %d bytes at byte offset 0x%02x.",
- size_in_bytes,
- pages_addr * bytes_per_page + byte_offset);
- reserved_memory_control_TLV_present = true;
- }
- }
-
- if (!reserved_memory_control_TLV_present) {
- PrintAndLog("(No Reserved Memory Control TLV present)");
- return -1;
- } else {
- return 0;
- }
-}
-
-
-static void topaz_print_lifecycle_state(uint8_t *data)
-{
-
-}
-
-
-static void topaz_print_NDEF(uint8_t *data)
-{
-
-}
-
-
-int CmdHFTopazReader(const char *Cmd)
-{
- int status;
- uint8_t atqa[2];
- uint8_t rid_response[8];
- uint8_t *uid_echo = &rid_response[2];
- uint8_t rall_response[124];
-
- status = topaz_select(atqa, rid_response);
-
- if (status == -1) {
- PrintAndLog("Error: couldn't receive ATQA");
- return -1;
- }
-
- PrintAndLog("ATQA : %02x %02x", atqa[1], atqa[0]);
- if (atqa[1] != 0x0c && atqa[0] != 0x00) {
- PrintAndLog("Tag doesn't support the Topaz protocol.");
- topaz_switch_off_field();
- return -1;
- }
-
- if (status == -2) {
- PrintAndLog("Error: tag didn't answer to RID");
- topaz_switch_off_field();
- return -1;
- }
-
- topaz_tag.HR01[0] = rid_response[0];
- topaz_tag.HR01[1] = rid_response[1];
-
- // ToDo: CRC check
- PrintAndLog("HR0 : %02x (%sa Topaz tag (%scapable of carrying a NDEF message), %s memory map)", rid_response[0],
- (rid_response[0] & 0xF0) == 0x10 ? "" : "not ",
- (rid_response[0] & 0xF0) == 0x10 ? "" : "not ",
- (rid_response[0] & 0x0F) == 0x10 ? "static" : "dynamic");
- PrintAndLog("HR1 : %02x", rid_response[1]);
-
- status = topaz_rall(uid_echo, rall_response);
-
- if(status == -1) {
- PrintAndLog("Error: tag didn't answer to RALL");
- topaz_switch_off_field();
- return -1;
- }
-
- memcpy(topaz_tag.uid, rall_response+2, 7);
- PrintAndLog("UID : %02x %02x %02x %02x %02x %02x %02x",
- topaz_tag.uid[6],
- topaz_tag.uid[5],
- topaz_tag.uid[4],
- topaz_tag.uid[3],
- topaz_tag.uid[2],
- topaz_tag.uid[1],
- topaz_tag.uid[0]);
- PrintAndLog(" UID[6] (Manufacturer Byte) = %02x, Manufacturer: %s",
- topaz_tag.uid[6],
- getTagInfo(topaz_tag.uid[6]));
-
- memcpy(topaz_tag.data_blocks, rall_response+2, 0x10*8);
- PrintAndLog("");
- PrintAndLog("Static Data blocks 00 to 0c:");
- PrintAndLog("block# | offset | Data | Locked?");
- char line[80];
- for (uint16_t i = 0; i <= 0x0c; i++) {
- for (uint16_t j = 0; j < 8; j++) {
- sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[i][j] /*rall_response[2 + 8*i + j]*/);
- }
- PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", i, i*8, line, topaz_block_is_locked(i, &topaz_tag.data_blocks[0x0d][0]) ? "yes" : "no");
- }
-
- PrintAndLog("");
- PrintAndLog("Static Reserved block 0d:");
- for (uint16_t j = 0; j < 8; j++) {
- sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0d][j]);
- }
- PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0d, 0x0d*8, line, "n/a");
-
- PrintAndLog("");
- PrintAndLog("Static Lockbits and OTP Bytes:");
- for (uint16_t j = 0; j < 8; j++) {
- sprintf(&line[3*j], "%02x ", topaz_tag.data_blocks[0x0e][j]);
- }
- PrintAndLog(" 0x%02x | 0x%02x | %s| %-3s", 0x0e, 0x0e*8, line, "n/a");
-
- PrintAndLog("");
-
- status = topaz_print_CC(&topaz_tag.data_blocks[1][0]);
-
- if (status == -1) {
- PrintAndLog("No NDEF message present");
- topaz_switch_off_field();
- return 0;
- }
-
- PrintAndLog("");
- bool lock_TLV_present = topaz_print_lock_control_TLVs(&topaz_tag.data_blocks[1][4]);
-
- PrintAndLog("");
- bool reserved_mem_present = topaz_print_reserved_memory_control_TLVs(&topaz_tag.data_blocks[1][4]);
-
- topaz_print_lifecycle_state(&topaz_tag.data_blocks[1][0]);
-
- topaz_print_NDEF(&topaz_tag.data_blocks[1][0]);
-
- topaz_switch_off_field();
- return 0;
-}
-
-
-int CmdHFTopazSim(const char *Cmd)
-{
- PrintAndLog("not yet implemented");
- return 0;
-}
-
-
-int CmdHFTopazCmdRaw(const char *Cmd)
-{
- PrintAndLog("not yet implemented");
- return 0;
-}
-
-
-static int CmdHelp(const char *Cmd);
-
-
-static command_t CommandTable[] =
-{
- {"help", CmdHelp, 1, "This help"},
- {"reader", CmdHFTopazReader, 0, "Act like a Topaz reader"},
- {"sim", CmdHFTopazSim, 0, "<UID> -- Simulate Topaz tag"},
- {"snoop", CmdHF14ASnoop, 0, "Eavesdrop a Topaz reader-tag communication"},
- {"raw", CmdHFTopazCmdRaw, 0, "Send raw hex data to tag"},
- {NULL, NULL, 0, NULL}
-};
-
-
-int CmdHFTopaz(const char *Cmd) {
- // flush
- WaitForResponseTimeout(CMD_ACK,NULL,100);
-
- // parse
- CmdsParse(CommandTable, Cmd);
- return 0;
-}
-
-static int CmdHelp(const char *Cmd)
-{
- CmdsHelp(CommandTable);
- return 0;
-}
-
-
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