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Added 'mf mfu sim t 7 n <numreads>' - MFU emulation now supports automatic exit after <num> blocks read.

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cyberpunk-re 2020-11-30 20:07:51 +00:00
commit 5486bdd18c
8 changed files with 35 additions and 13 deletions
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14
armsrc/iso14443a.c
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@ -1252,7 +1252,7 @@ bool SimulateIso14443aInit(int tagType, int flags, uint8_t *data, tag_response_i
// response to send, and send it.
// 'hf 14a sim'
//-----------------------------------------------------------------------------
void SimulateIso14443aTag(uint8_t tagType, uint8_t flags, uint8_t *data) {
void SimulateIso14443aTag(uint8_t tagType, uint8_t flags, uint8_t *data, uint8_t exitAfterNReads) {
#define ATTACK_KEY_COUNT 8 // keep same as define in cmdhfmf.c -> readerAttack()
@ -1328,6 +1328,7 @@ void SimulateIso14443aTag(uint8_t tagType, uint8_t flags, uint8_t *data) {
int happened = 0;
int happened2 = 0;
int cmdsRecvd = 0;
uint32_t numReads = 0; //Counts numer of times reader reads a block
// compatible write block number
uint8_t wrblock = 0;
@ -1339,7 +1340,10 @@ void SimulateIso14443aTag(uint8_t tagType, uint8_t flags, uint8_t *data) {
LED_A_ON();
// main loop
for (;;) {
//for (;;) {
bool finished = false;
bool button_pushed = BUTTON_PRESS();
while (!button_pushed && !finished) {
WDT_HIT();
tag_response_info_t *p_response = NULL;
@ -1468,6 +1472,12 @@ void SimulateIso14443aTag(uint8_t tagType, uint8_t flags, uint8_t *data) {
emlGetMemBt(emdata, start, 16);
AddCrc14A(emdata, 16);
EmSendCmd(emdata, sizeof(emdata));
numReads++; // Increment number of times reader requested a block
if (exitAfterNReads > 0 && numReads == exitAfterNReads) {
Dbprintf("[MFUEMUL_WORK] %d reads done, exiting", numReads);
finished = true;
}
}
// We already responded, do not send anything with the EmSendCmd14443aRaw() that is called below
p_response = NULL;