github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-21 05:43:48 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions 4

Merge pull request #157 from McEloff/temp

Browse source 
BugFix.'mifaresim.c' used wrong Uart reference
This commit is contained in:
Philippe Teuwen 2019-04-12 00:21:15 +02:00 • committed by GitHub
commit 521add0c51
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 12 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

30
armsrc/mifaresim.c
View file

@ -34,8 +34,6 @@
#include "protocols.h"
#include "apps.h"
static tUart Uart;
uint8_t MifareCardType;
static bool IsTrailerAccessAllowed(uint8_t blockNo, uint8_t keytype, uint8_t action) {
@ -372,12 +370,6 @@ static bool MifareSimInit(uint16_t flags, uint8_t *datain, tag_response_info_t *
return true;
}
static bool HasValidCRC(uint8_t *receivedCmd, uint16_t receivedCmd_len) {
uint8_t CRC_byte_1, CRC_byte_2;
compute_crc(CRC_14443_A, receivedCmd, receivedCmd_len - 2, &CRC_byte_1, &CRC_byte_2);
return (receivedCmd[receivedCmd_len - 2] == CRC_byte_1 && receivedCmd[receivedCmd_len - 1] == CRC_byte_2);
}
/**
*MIFARE 1K simulate.
@ -453,6 +445,8 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
uint8_t rAUTH_NT_keystream[4];
uint32_t nonce = 0;
tUart *uart = GetUart();
if ((flags & FLAG_MF_MINI) == FLAG_MF_MINI) {
MifareCardType = 0;
Dbprintf("Mifare Mini");
@ -544,7 +538,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
case MFEMUL_HALTED:
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("MFEMUL_HALTED");
case MFEMUL_IDLE: {
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("MFEMUL_IDLE");
break;
}
@ -709,7 +703,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
case MFEMUL_SELECT3: {
if (!uid_len) {
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
break;
}
if (receivedCmd_len == 2 && (receivedCmd[0] == ISO14443A_CMD_ANTICOLL_OR_SELECT_3 && receivedCmd[1] == 0x20)) {
@ -772,7 +766,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
memcpy(receivedCmd_dec, receivedCmd, receivedCmd_len);
}
if (!HasValidCRC(receivedCmd_dec, receivedCmd_len)) { // all commands must have a valid CRC
if (!CheckCrc14A(receivedCmd_dec, receivedCmd_len)) { // all commands must have a valid CRC
EmSend4bit(encrypted_data ? mf_crypto1_encrypt4bit(pcs, CARD_NACK_NA) : CARD_NACK_NA);
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("[MFEMUL_WORK] All commands must have a valid CRC %02X (%d)", receivedCmd_dec, receivedCmd_len);
break;
@ -999,7 +993,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
// case MFEMUL_WORK => CMD HALT
if (receivedCmd_len > 1 && receivedCmd_dec[0] == ISO14443A_CMD_HALT && receivedCmd_dec[1] == 0x00) {
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
LED_B_OFF();
LED_C_OFF();
cardSTATE = MFEMUL_HALTED;
@ -1027,7 +1021,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
if (receivedCmd_len != 8) {
cardSTATE_TO_IDLE();
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("MFEMUL_AUTH1: receivedCmd_len != 8 (%d) => cardSTATE_TO_IDLE())", receivedCmd_len);
break;
}
@ -1138,7 +1132,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
case MFEMUL_WRITEBL2: {
if (receivedCmd_len == MAX_MIFARE_FRAME_SIZE) {
mf_crypto1_decryptEx(pcs, receivedCmd, receivedCmd_len, receivedCmd_dec);
if (HasValidCRC(receivedCmd_dec, receivedCmd_len)) {
if (CheckCrc14A(receivedCmd_dec, receivedCmd_len)) {
if (IsSectorTrailer(cardWRBL)) {
emlGetMem(response, cardWRBL, 1);
if (!IsAccessAllowed(cardWRBL, cardAUTHKEY, AC_KEYA_WRITE)) {
@ -1164,7 +1158,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
}
cardSTATE_TO_IDLE();
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("[MFEMUL_WRITEBL2] cardSTATE = MFEMUL_IDLE");
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
break;
}
@ -1177,7 +1171,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
cardSTATE_TO_IDLE();
break;
}
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
cardINTREG = cardINTREG + ans;
cardSTATE = MFEMUL_WORK;
@ -1197,7 +1191,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
break;
}
}
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
cardINTREG = cardINTREG - ans;
cardSTATE = MFEMUL_WORK;
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("[MFEMUL_INTREG_DEC] cardSTATE = MFEMUL_WORK");
@ -1212,7 +1206,7 @@ void Mifare1ksim(uint16_t flags, uint8_t exitAfterNReads, uint8_t arg2, uint8_t
cardSTATE_TO_IDLE();
break;
}
LogTrace(Uart.output, Uart.len, Uart.startTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.endTime * 16 - DELAY_AIR2ARM_AS_TAG, Uart.parity, true);
LogTrace(uart->output, uart->len, uart->startTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->endTime * 16 - DELAY_AIR2ARM_AS_TAG, uart->parity, true);
cardSTATE = MFEMUL_WORK;
if (MF_DBGLEVEL >= MF_DBG_EXTENDED) Dbprintf("[MFEMUL_INTREG_REST] cardSTATE = MFEMUL_WORK");
break;