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report_protocol.c
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/*
* Author: Copyright (C) Andrzej Surowiec 2012
*
*
* This file is part of Nitrokey.
*
* Nitrokey is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* Nitrokey is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Nitrokey. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stm32f10x_rcc.h>
#include "stm32f10x.h"
#include "platform_config.h"
#include "stm32f10x_crc.h"
#include "usb_lib.h"
#include "hw_config.h"
#include "usb_pwr.h"
#include "CCID_usb.h"
#include "keyboard.h"
#include "AccessInterface.h"
#include "hotp.h"
#include "report_protocol.h"
#include "CCIDHID_usb_desc.h"
#include "string.h"
#include "memory_ops.h"
#include "CcidLocalAccess.h"
#include "time.h"
#include "password_safe.h"
#include "FlashStorage.h"
#include "stm32f10x_bkp.h"
#include "stm32f10x_pwr.h"
uint8_t temp_password[25];
uint8_t temp_user_password[25];
bool temp_admin_password_set = FALSE;
bool temp_user_password_set = FALSE;
OTP_slot local_slot_content;
bool write_to_slot_transaction_started = FALSE;
bool is_valid_temp_user_password(const uint8_t *const user_password);
bool is_valid_admin_temp_password(const uint8_t *const password);
bool is_user_PIN_protection_enabled(void);
bool is_HOTP_slot_number(uint8_t slot_no);
bool is_TOTP_slot_number(uint8_t slot_no);
size_t s_min(size_t a, size_t b){
if (a<b){
return a;
}
return b;
}
uint8_t parse_report(uint8_t * const report, uint8_t * const output) {
uint8_t cmd_type = report[CMD_TYPE_OFFSET];
uint32_t received_crc32;
uint32_t calculated_crc32;
uint8_t not_authorized = 0;
received_crc32 = getu32(report + KEYBOARD_FEATURE_COUNT - 4);
CRC_ResetDR();
calculated_crc32 = CRC_CalcBlockCRC((uint32_t *) report, KEYBOARD_FEATURE_COUNT / 4 - 1);
memset(output, 0, KEYBOARD_FEATURE_COUNT);
output[OUTPUT_CMD_TYPE_OFFSET] = cmd_type;
output[OUTPUT_CMD_CRC_OFFSET] = (uint8_t) (calculated_crc32 & 0xFF);
output[OUTPUT_CMD_CRC_OFFSET + 1] = (uint8_t) ((calculated_crc32 >> 8) & 0xFF);
output[OUTPUT_CMD_CRC_OFFSET + 2] = (uint8_t) ((calculated_crc32 >> 16) & 0xFF);
output[OUTPUT_CMD_CRC_OFFSET + 3] = (uint8_t) ((calculated_crc32 >> 24) & 0xFF);
if (calculated_crc32 == received_crc32) {
switch (cmd_type) {
case CMD_GET_STATUS:
cmd_get_status(report, output);
break;
case CMD_SEND_OTP_DATA: {
cmd_send_OTP_data const * const otp_data = (cmd_send_OTP_data*) (report+1);
if(is_valid_admin_temp_password(otp_data->temporary_admin_password)){
if (!write_to_slot_transaction_started){
memset((void *) &local_slot_content, 0, sizeof(local_slot_content));
}
write_to_slot_transaction_started = TRUE;
if (otp_data->type == 'N') {
size_t bytes_count = s_min(sizeof(otp_data->data), sizeof(local_slot_content.name));
memcpy(local_slot_content.name, otp_data->data, bytes_count);
memcpy(&output[OUTPUT_CMD_RESULT_OFFSET], local_slot_content.name, sizeof(local_slot_content.name));
} else if (otp_data->type == 'S') {
size_t offset = otp_data->id * sizeof(otp_data->data);
if (offset > sizeof(local_slot_content.secret) ){
offset = 0;
}
size_t bytes_count = s_min(sizeof(otp_data->data), sizeof(local_slot_content.secret)-offset);
memcpy(local_slot_content.secret+offset, otp_data->data, bytes_count);
memcpy(&output[OUTPUT_CMD_RESULT_OFFSET], local_slot_content.secret, sizeof(local_slot_content.secret));
}
} else
not_authorized = 1;
}
break;
case CMD_WRITE_TO_SLOT: {
write_to_slot_payload const * const payload = (write_to_slot_payload*) report;
if(is_valid_admin_temp_password(payload->temporary_admin_password)
&& write_to_slot_transaction_started == TRUE) {
write_to_slot_transaction_started = FALSE;
local_slot_content.slot_number = payload->slot_number;
local_slot_content.interval_or_counter = payload->slot_counter_or_interval;
local_slot_content.config = payload->_slot_config;
memcpy(local_slot_content.token_id, payload->slot_token_id, sizeof(payload->slot_token_id));
cmd_write_to_slot(&local_slot_content, output);
} else
not_authorized = 1;
}
break;
case CMD_READ_SLOT_NAME:
cmd_read_slot_name(report, output);
break;
case CMD_READ_SLOT:
cmd_read_slot(report, output);
break;
case CMD_VERIFY_OTP_CODE:
cmd_verify_code(report, output);
break;
case CMD_GET_CODE: {
uint8_t *const user_temp_password = report + CMD_GC_PASSWORD_OFFSET;
if (!is_user_PIN_protection_enabled() || is_valid_temp_user_password(user_temp_password)) {
cmd_get_code(report, output);
} else
not_authorized = 1;
}
break;
case CMD_WRITE_CONFIG:
if (is_valid_admin_temp_password(report + CMD_WRITE_CONFIG_PASSWORD_OFFSET))
cmd_write_config(report, output);
else
not_authorized = 1;
break;
case CMD_ERASE_SLOT:
if (is_valid_admin_temp_password(report + CMD_ERASE_SLOT_PASSWORD_OFFSET))
cmd_erase_slot(report, output);
else
not_authorized = 1;
break;
case CMD_FIRST_AUTHENTICATE:
cmd_first_authenticate(report, output);
break;
case CMD_AUTHORIZE:
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_UNKNOWN_COMMAND;
break;
case CMD_USER_AUTHORIZE:
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_UNKNOWN_COMMAND;
break;
case CMD_GET_PASSWORD_RETRY_COUNT:
cmd_get_password_retry_count(report, output);
break;
case CMD_GET_USER_PASSWORD_RETRY_COUNT:
cmd_get_user_password_retry_count(report, output);
break;
case CMD_USER_AUTHENTICATE:
cmd_user_authenticate(report, output);
break;
case CMD_FACTORY_RESET:
cmd_factory_reset(report, output);
break;
case CMD_SET_TIME:
cmd_set_time(report, output);
break;
// Password Safe functions
case CMD_GET_PW_SAFE_SLOT_STATUS:
cmd_getPasswordSafeStatus(report, output);
break;
case CMD_GET_PW_SAFE_SLOT_NAME:
cmd_getPasswordSafeSlotName(report, output);
break;
case CMD_GET_PW_SAFE_SLOT_PASSWORD:
cmd_getPasswordSafeSlotPassword(report, output);
break;
case CMD_GET_PW_SAFE_SLOT_LOGINNAME:
cmd_getPasswordSafeSlotLoginName(report, output);
break;
case CMD_SET_PW_SAFE_SLOT_DATA_1:
cmd_setPasswordSafeSetSlotData_1(report, output);
break;
case CMD_SET_PW_SAFE_SLOT_DATA_2:
cmd_setPasswordSafeSetSlotData_2(report, output);
break;
case CMD_PW_SAFE_ERASE_SLOT:
cmd_getPasswordSafeEraseSlot(report, output);
break;
case CMD_PW_SAFE_ENABLE:
cmd_getPasswordSafeEnable(report, output);
break;
case CMD_PW_SAFE_INIT_KEY:
cmd_getPasswordSafeInitKey(report, output);
break;
#ifdef PWS_SEND_DATA
case CMD_PW_SAFE_SEND_DATA:
cmd_getPasswordSafeSendData(report, output);
break;
#endif // PWS_SEND_DATA
case CMD_LOCK_DEVICE:
cmd_lockDevice(report, output);
break;
case CMD_DETECT_SC_AES:
cmd_detectSmartCardAES(report, output);
break;
case CMD_NEW_AES_KEY:
cmd_newAesKey(report, output);
break;
case CMD_FIRMWARE_UPDATE:
cmd_enableFirmwareUpdate(report, output);
break;
case CMD_CHANGE_FIRMWARE_PASSWORD:
cmd_changeFirmwarePassword(report, output);
break;
#ifdef ADD_DEBUG_COMMANDS
#warning "Debug commands handled"
case GET_PRO_DEBUG:
cmd_getProDebug(report, output);
break;
#endif // ADD_DEBUG_COMMANDS
case CMD_GET_RANDOM:
cmd_get_random(report, output);
break;
case CMD_CHANGE_USER_PIN:
cmd_change_user_pin(report, output);
break;
case CMD_CHANGE_ADMIN_PIN:
cmd_change_admin_pin(report, output);
break;
case CMD_UNLOCK_USER_PASSWORD:
cmd_unblock_pin(report, output);
break;
default: // Non of the above cases was selected => unknown
// command
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_UNKNOWN_COMMAND;
break;
}
if (not_authorized)
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
} else
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_CRC;
CRC_ResetDR();
calculated_crc32 = CRC_CalcBlockCRC((uint32_t *) output, KEYBOARD_FEATURE_COUNT / 4 - 1);
output[OUTPUT_CRC_OFFSET] = calculated_crc32 & 0xFF;
output[OUTPUT_CRC_OFFSET + 1] = (calculated_crc32 >> 8) & 0xFF;
output[OUTPUT_CRC_OFFSET + 2] = (calculated_crc32 >> 16) & 0xFF;
output[OUTPUT_CRC_OFFSET + 3] = (calculated_crc32 >> 24) & 0xFF;
return 0;
}
uint8_t cmd_get_random(const uint8_t *const report, uint8_t *const output) {
const unsigned int size_requested = report[CMD_DATA_OFFSET];
const unsigned int size_clamped = s_min(size_requested, KEYBOARD_FEATURE_COUNT-OUTPUT_CMD_RESULT_OFFSET-2);
const unsigned int operation_success = getRandomNumber(size_clamped, &output[OUTPUT_CMD_RESULT_OFFSET + 2]);
output[OUTPUT_CMD_RESULT_OFFSET] = operation_success;
output[OUTPUT_CMD_RESULT_OFFSET+1] = size_clamped;
return 0;
}
bool is_user_PIN_protection_enabled(void) { return *((uint8_t *) (SLOTS_PAGE1_ADDRESS + GLOBAL_CONFIG_OFFSET + 3)) == 1; }
uint8_t cmd_get_status(uint8_t *report, uint8_t *output) {
output[OUTPUT_CMD_RESULT_OFFSET] = FIRMWARE_VERSION & 0xFF;
output[OUTPUT_CMD_RESULT_OFFSET + 1] = (FIRMWARE_VERSION >> 8) & 0xFF;
output[OUTPUT_CMD_RESULT_OFFSET + 2] = cardSerial & 0xFF;
output[OUTPUT_CMD_RESULT_OFFSET + 3] = (cardSerial >> 8) & 0xFF;
output[OUTPUT_CMD_RESULT_OFFSET + 4] = (cardSerial >> 16) & 0xFF;
output[OUTPUT_CMD_RESULT_OFFSET + 5] = (cardSerial >> 24) & 0xFF;
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 6, (uint8_t *) SLOTS_PAGE1_ADDRESS + GLOBAL_CONFIG_OFFSET, 3);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 9, (uint8_t *) SLOTS_PAGE1_ADDRESS + GLOBAL_CONFIG_OFFSET + 3, 2);
return 0;
}
uint8_t cmd_get_password_retry_count(uint8_t *report, uint8_t *output) {
output[OUTPUT_CMD_RESULT_OFFSET] = getPasswordRetryCount();
return 0;
}
uint8_t cmd_get_user_password_retry_count(uint8_t *report, uint8_t *output) {
output[OUTPUT_CMD_RESULT_OFFSET] = getUserPasswordRetryCount();
return 0;
}
uint8_t cmd_write_to_slot(OTP_slot *new_slot_data, uint8_t *output) {
uint8_t slot_no = new_slot_data->slot_number;
const int BUFFER_SIZE = sizeof(OTP_slot);
if (new_slot_data->name[0] == 0) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NO_NAME_ERROR;
return 1;
}
if (is_HOTP_slot_number(slot_no)) {
slot_no = slot_no & 0x0F;
uint64_t counter = new_slot_data->interval_or_counter;
set_counter_value(hotp_slot_counters[slot_no], counter);
new_slot_data->type = 'H';
write_to_slot(new_slot_data, get_HOTP_slot_offset(slot_no), BUFFER_SIZE);
} else if (is_TOTP_slot_number(slot_no)) {
slot_no = slot_no & 0x0F;
new_slot_data->type = 'T';
write_to_slot(new_slot_data, get_TOTP_slot_offset(slot_no), BUFFER_SIZE);
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_SLOT;
}
return 0;
}
bool is_TOTP_slot_number(uint8_t slot_no) { return slot_no >= 0x20 && slot_no < 0x20 + NUMBER_OF_TOTP_SLOTS; }
bool is_HOTP_slot_number(uint8_t slot_no) { return slot_no >= 0x10 && slot_no < 0x10 + NUMBER_OF_HOTP_SLOTS; }
bool is_HOTP_slot_programmed(int slot_no){
OTP_slot* otp_slot = (OTP_slot *) get_HOTP_slot_offset(slot_no);
bool is_programmed = otp_slot->type != 0xFF;
return is_programmed;
}
bool is_TOTP_slot_programmed(int slot_no){
OTP_slot* otp_slot = (OTP_slot *) get_TOTP_slot_offset(slot_no);
bool is_programmed = otp_slot->type != 0xFF;
return is_programmed;
}
uint8_t cmd_read_slot_name(uint8_t *report, uint8_t *output) {
uint8_t slot_no = report[1];
if (is_HOTP_slot_number(slot_no)) { // HOTP slot
slot_no = slot_no & 0x0F;
if ( is_HOTP_slot_programmed(slot_no) ) {
OTP_slot *const slot = (OTP_slot*)get_HOTP_slot_offset(slot_no);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, slot->name, 15);
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
}
} else if (is_TOTP_slot_number(slot_no)) { // TOTP slot
slot_no = slot_no & 0x0F;
if (is_TOTP_slot_programmed(slot_no)) {
OTP_slot *const slot = (OTP_slot*)get_TOTP_slot_offset(slot_no);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, slot->name, 15);
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
}
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_SLOT;
}
return 0;
}
uint8_t cmd_read_slot(uint8_t *report, uint8_t *output) {
uint8_t slot_no = report[1];
uint64_t counter;
if (is_HOTP_slot_number(slot_no)) { // HOTP slot
slot_no = slot_no & 0x0F;
if (is_HOTP_slot_programmed(slot_no)) {
OTP_slot* otp_slot = (OTP_slot *) get_HOTP_slot_offset(slot_no);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, otp_slot->name, 15);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 15, &otp_slot->config, 1);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 16, otp_slot->token_id, 13);
counter = get_counter_value(hotp_slot_counters[slot_no]);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 29, &counter, 8);
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
}
} else if (is_TOTP_slot_number(slot_no)) { // TOTP slot
slot_no = slot_no & 0x0F;
if (is_TOTP_slot_programmed(slot_no)) {
OTP_slot* otp_slot = (OTP_slot *) get_TOTP_slot_offset(slot_no);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, otp_slot->name, 15);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 15, &otp_slot->config, 1);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 16, otp_slot->token_id, 13);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 29, &otp_slot->interval_or_counter, 8);
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
}
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_SLOT;
}
return 0;
}
void wink_correct(bool correct){
ClearAllBlinking();
if (correct){
VerifyBlinkCorrect(20);
} else {
VerifyBlinkError(10000);
}
}
uint8_t cmd_verify_code(uint8_t *report, uint8_t *output) {
const uint8_t HOTP_VERIFY_SLOT_NO = 3;
uint8_t slot_no = HOTP_VERIFY_SLOT_NO;
cmd_query_verify_code* input = (cmd_query_verify_code*) (report+1);
int result = 0;
slot_no = slot_no & 0x0F;
OTP_slot* otp_slot = (OTP_slot *) get_HOTP_slot_offset(slot_no);
bool is_programmed = (bool) (otp_slot->type != 0xFF);
if (!is_programmed) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
return 1;
}
result = validate_code_from_hotp_slot(slot_no, input->otp_code_to_verify);
bool code_correct = (bool) (result >= 0);
wink_correct(code_correct);
output[OUTPUT_CMD_RESULT_OFFSET] = (uint8_t) (code_correct ? 1 : 0);
output[OUTPUT_CMD_RESULT_OFFSET+1] = (uint8_t) result;
return 0;
}
uint8_t cmd_get_code(uint8_t *report, uint8_t *output) {
uint64_t challenge = getu64(report + CMD_GC_CHALLENGE_OFFSET);
uint32_t result = 0;
uint8_t slot_no = report[CMD_GC_SLOT_NUMBER_OFFSET];
const bool is_HOTP_reserved = (slot_no & 0x0F) == NUMBER_OF_HOTP_SLOTS - 1; //last one is reserved
if (is_HOTP_slot_number(slot_no) && !is_HOTP_reserved) { // HOTP slot
slot_no = slot_no & 0x0F;
OTP_slot* otp_slot = (OTP_slot *) get_HOTP_slot_offset(slot_no);
bool is_programmed = otp_slot->type != 0xFF;
if (is_programmed) {
result = get_code_from_hotp_slot(slot_no);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, &result, 4);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 4, &otp_slot->config, sizeof(otp_slot->config));
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 5, otp_slot->token_id , sizeof(otp_slot->token_id));
} else
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
} else if (is_TOTP_slot_number(slot_no)) { // TOTP slot
slot_no = slot_no & 0x0F;
OTP_slot* otp_slot = (OTP_slot *) get_TOTP_slot_offset(slot_no);
bool is_programmed = otp_slot->type != 0xFF;
if (is_programmed) {
result = get_code_from_totp_slot(slot_no, challenge);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, &result, 4);
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 4, &otp_slot->config, sizeof(otp_slot->config));
memcpy(output + OUTPUT_CMD_RESULT_OFFSET + 5, otp_slot->token_id , sizeof(otp_slot->token_id));
} else
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_SLOT_NOT_PROGRAMMED;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_SLOT;
}
return 0;
}
uint8_t cmd_write_config(uint8_t *report, uint8_t *output) {
uint8_t slot_tmp[64]; // this will be the new slot contents
memset(slot_tmp, 0, 64);
memcpy(slot_tmp, report + 1, 5);
write_to_slot((OTP_slot *) slot_tmp, GLOBAL_CONFIG_OFFSET, 64);
return 0;
}
uint8_t cmd_erase_slot(uint8_t *report, uint8_t *output) {
uint8_t slot_no = report[CMD_WTS_SLOT_NUMBER_OFFSET];
const int buffer_size = sizeof(OTP_slot);
uint8_t slot_tmp[buffer_size];
memset(slot_tmp, 0xFF, buffer_size);
if (is_HOTP_slot_number(slot_no)) // HOTP
// slot
{
slot_no = slot_no & 0x0F;
write_to_slot((OTP_slot *) slot_tmp, get_HOTP_slot_offset(slot_no), buffer_size);
erase_counter(slot_no);
} else if (is_TOTP_slot_number(slot_no)) // TOTP
// slot
{
slot_no = slot_no & 0x0F;
write_to_slot((OTP_slot *) slot_tmp, get_TOTP_slot_offset(slot_no), buffer_size);
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_SLOT;
}
return 0;
}
uint8_t cmd_first_authenticate(uint8_t *report, uint8_t *output) {
uint8_t res = 1;
uint8_t card_password[26]; //must be a C string
//invalidate current admin password
memset(temp_password, 0, sizeof(temp_password));
temp_admin_password_set = FALSE;
memcpy(card_password, report + 1, 25);
card_password[sizeof(card_password)-1] = 0;
res = cardAuthenticate(card_password);
memset(card_password, 0, sizeof(card_password));
if (res == TRUE) {
memcpy(temp_password, report + 26, 25);
temp_admin_password_set = TRUE;
getAID();
return 0; //success
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return 1; // wrong card password
}
}
uint8_t cmd_user_authenticate(uint8_t *report, uint8_t *output) {
uint8_t res = 1;
uint8_t user_password[26]; //must be a C string
//invalidate current user password
memset(temp_user_password, 0, sizeof(temp_user_password));
temp_user_password_set = FALSE;
memcpy(user_password, report + 1, 25);
user_password[sizeof(user_password)-1] = 0;
res = userAuthenticate(user_password);
memset(user_password, 0, sizeof(user_password));
if (res == 0) { //correct User PIN
memcpy(temp_user_password, report + 26, 25);
temp_user_password_set = TRUE;
getAID();
return 0; //successfull authentication
} else { //incorrect User PIN
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return 1; // wrong card password
}
}
uint8_t cmd_change_user_pin(uint8_t *report, uint8_t *output) {
uint8_t res = 1;
uint8_t old_pin[26];
uint8_t new_pin[26];
memset(old_pin, 0, 26);
memset(new_pin, 0, 26);
memcpy(old_pin, report + 1, 25);
memcpy(new_pin, report + 26, 25);
res = userAuthenticate(old_pin);
if (res != 0) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return 1; // wrong card password
}
res = changeUserPin(old_pin, new_pin);
memset(old_pin, 0, sizeof(old_pin));
memset(new_pin, 0, sizeof(new_pin));
if (0 == res) {
return 0;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_ERROR_CHANGING_USER_PASSWORD;
return 1;
}
}
uint8_t cmd_change_admin_pin(uint8_t *report, uint8_t *output) {
uint8_t res = 1;
uint8_t old_admin_pin[26];
uint8_t new_admin_pin[26];
memset(old_admin_pin, 0, 26);
memset(new_admin_pin, 0, 26);
memcpy(old_admin_pin, report + 1, 25);
memcpy(new_admin_pin, report + 26, 25);
res = cardAuthenticate(old_admin_pin);
if (res != TRUE) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return 1;
}
res = changeAdminPin(old_admin_pin, new_admin_pin);
memset(old_admin_pin, 0, sizeof(old_admin_pin));
memset(old_admin_pin, 0, sizeof(new_admin_pin));
if (0 == res) {
return 0;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_ERROR_CHANGING_ADMIN_PASSWORD;
return 1;
}
}
uint8_t cmd_unblock_pin(uint8_t *report, uint8_t *output) {
uint8_t res = 1;
uint8_t admin_pin[25];
uint8_t new_pin[25];
memset(admin_pin, 0, 25);
memcpy(admin_pin, report + 1, 25);
memset(new_pin, 0, 25);
memcpy(new_pin, &(report[26]), 25);
res = cardAuthenticate(admin_pin);
memset(admin_pin, 0, sizeof(admin_pin));
if (res != TRUE) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return 1;
}
res = unblockPin(new_pin);
memset(new_pin, 0, sizeof(new_pin));
if (0 == res) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
return 0;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_ERROR_UNBLOCKING_PIN;
return 1;
}
}
bool is_valid_admin_temp_password(const uint8_t *const password) { return temp_admin_password_set && memcmp(password, temp_password, 25) == 0; }
bool is_valid_temp_user_password(const uint8_t *const user_password) { return temp_user_password_set && memcmp(user_password, temp_user_password, 25) == 0; }
uint8_t cmd_factory_reset(uint8_t *report, uint8_t *output) {
uint8_t res = 1;
uint8_t admin_password[26];
memset(admin_password, 0, 26);
memcpy(admin_password, report + 1, 25);
res = factoryReset(admin_password);
if (0 == res) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
return 0;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return 1;
}
}
uint8_t cmd_set_time(uint8_t *report, uint8_t *output) {
int err;
uint64_t new_time = (getu64(report + CMD_DATA_OFFSET + 1));
uint32_t old_time = get_time_value();
uint32_t new_time_minutes = (new_time - 1388534400) / 60;
if (0 == report[CMD_DATA_OFFSET]) // Check valid time only at check
// time
{
if (old_time == 0) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_TIMESTAMP_WARNING;
return 1;
}
}
if (old_time <= new_time_minutes || old_time == 0xffffffff || *((uint8_t *) (report + CMD_DATA_OFFSET)) == 1) {
current_time = new_time;
err = set_time_value(new_time_minutes);
if (err) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_TIMESTAMP_WARNING;
return 1;
}
return 0;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_TIMESTAMP_WARNING;
return 1;
}
}
uint8_t cmd_getPasswordSafeStatus(uint8_t *report, uint8_t *output) {
uint8_t Data_u8[PWS_SLOT_COUNT];
uint32_t Ret_u32;
Ret_u32 = PWS_GetAllSlotStatus(Data_u8);
if (TRUE == Ret_u32) {
memcpy(&output[OUTPUT_CMD_RESULT_OFFSET], Data_u8, PWS_SLOT_COUNT);
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_getPasswordSafeSlotName(uint8_t *report, uint8_t *output) {
uint32_t Ret_u32;
Ret_u32 = PWS_GetSlotName(report[1], &output[OUTPUT_CMD_RESULT_OFFSET]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_getPasswordSafeSlotPassword(uint8_t *report, uint8_t *output) {
uint32_t Ret_u32;
Ret_u32 = PWS_GetSlotPassword(report[1], &output[OUTPUT_CMD_RESULT_OFFSET]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_getPasswordSafeSlotLoginName(uint8_t *report, uint8_t *output) {
uint32_t Ret_u32;
Ret_u32 = PWS_GetSlotLoginName(report[1], &output[OUTPUT_CMD_RESULT_OFFSET]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_setPasswordSafeSetSlotData_1(uint8_t *report, uint8_t *output) {
uint32_t Ret_u32;
// Slot name, Slot password. Don't write it into flash
Ret_u32 = PWS_WriteSlotData_1(report[1], &report[2], &report[2 + PWS_SLOTNAME_LENGTH]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_setPasswordSafeSetSlotData_2(uint8_t *report, uint8_t *output) {
u32 Ret_u32;
// Slot login name and write to flash
Ret_u32 = PWS_WriteSlotData_2(report[1], &report[2]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_getPasswordSafeEraseSlot(uint8_t *report, uint8_t *output) {
u32 Ret_u32;
Ret_u32 = PWS_EraseSlot(report[1]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
uint8_t cmd_getPasswordSafeEnable(uint8_t *report, uint8_t *output) {
u8 ret;
ret = PWS_EnableAccess(&report[1]);
output[OUTPUT_CMD_STATUS_OFFSET] = ret;
return 0;
}
uint8_t cmd_getPasswordSafeInitKey(uint8_t *report, uint8_t *output) {
u32 Ret_u32;
Ret_u32 = PWS_InitKey();
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
#ifdef PWS_SEND_DATA
uint8_t cmd_getPasswordSafeSendData(uint8_t *report, uint8_t *output) {
u32 Ret_u32;
Ret_u32 = PWS_SendData(report[1], report[2]);
if (TRUE == Ret_u32) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_AUTHORIZED;
}
return (0);
}
#endif // PWS_SEND_DATA
uint8_t cmd_detectSmartCardAES(uint8_t *report, uint8_t *output) {
unsigned short ret;
unsigned char user_password[26];
memset(user_password, 0, 26);
memcpy(user_password, report + 1, 25);
ret = CcidVerifyPin(2, user_password);
if (APDU_ANSWER_COMMAND_CORRECT != ret) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_WRONG_PASSWORD;
return (0);
}
ret = isAesSupported();
if (TRUE == ret) {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
} else {
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_NOT_SUPPORTED;
}
return (0);
}
#include "password_safe.h"
#include "HandleAesStorageKey.h"
uint8_t cmd_newAesKey(uint8_t *report, uint8_t *output) {
u32 ret;
unsigned char admin_password[26];
memset(admin_password, 0, 26);
memcpy(admin_password, report + 1, 25);
ret = BuildPasswordSafeKey_u32();
if (TRUE != ret)
{
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_AES_CREATE_KEY_FAILED;
return 0;
}
// ret = sendAESMasterKey (AES_KEYSIZE_256_BIT, MasterKey_pu8);
#define AES_KEYSIZE_256_BIT 32 // 32 * 8 = 256
u8 MasterKey_au8[AES_KEYSIZE_256_BIT];
ret = BuildNewAesMasterKey_u32(admin_password, MasterKey_au8);
// ret = BuildStorageKeys_u32 (admin_password);
output[OUTPUT_CMD_STATUS_OFFSET] = ret;
return (0);
}
#ifdef ADD_DEBUG_COMMANDS
uint8_t cmd_getProDebug(uint8_t *report, uint8_t *output) {
unsigned char data[OUTPUT_CMD_RESULT_LENGTH];
unsigned int data_length = 0;
GetDebug(data, &data_length);
output[OUTPUT_CMD_STATUS_OFFSET] = CMD_STATUS_OK;
memcpy(output + OUTPUT_CMD_RESULT_OFFSET, data, data_length);
return (0);
}
#endif
uint8_t cmd_lockDevice(uint8_t *report, uint8_t *output) {
// Disable password safe
PWS_DisableKey();
return 0;
}
const uint8_t MAX_PASSWORD_LEN = UPDATE_PIN_MAX_SIZE;
const uint8_t MIN_PASSWORD_LEN = UPDATE_PIN_MIN_SIZE;
typedef struct {
uint8_t _command_type; // 0
uint8_t current_password[20]; //1-21
} Enable_firmware_password_t;
uint8_t cmd_enableFirmwareUpdate(uint8_t *report, uint8_t *output) {
Enable_firmware_password_t * input = (Enable_firmware_password_t*)(report);
/* FIXME: Dont use strnlen replace with counting zeroes from the back to allow binary passwords */
const uint8_t len_current = strnlen ((char*)input->current_password, MAX_PASSWORD_LEN);
if (len_current > MAX_PASSWORD_LEN || len_current < MIN_PASSWORD_LEN) {