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less global vars

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This commit is contained in:
Philippe Teuwen 2020-06-01 20:10:45 +02:00
parent b9b230bb99
commit b6077df68e
5 changed files with 13 additions and 15 deletions
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5
client/src/cmdhfmf.c
View file

@ -3394,6 +3394,7 @@ static int CmdHF14AMfSniff(const char *Cmd) {
SendCommandNG(CMD_HF_MIFARE_SNIFF, NULL, 0);
PacketResponseNG resp;
struct Crypto1State *traceCrypto1 = NULL;
// wait cycle
while (true) {
@ -3490,13 +3491,13 @@ static int CmdHF14AMfSniff(const char *Cmd) {
PrintAndLogEx(SUCCESS, "Trace saved to %s", logHexFileName);
}
if (wantDecrypt)
mfTraceInit(uid, uid_len, atqa, sak, wantSaveToEmlFile);
mfTraceInit(&traceCrypto1, uid, uid_len, atqa, sak, wantSaveToEmlFile);
} else {
PrintAndLogEx(NORMAL, "%03d| %s |%s", num, isTag ? "TAG" : "RDR", sprint_hex(bufPtr, len));
if (wantLogToFile)
AddLogHex(logHexFileName, isTag ? "TAG| " : "RDR| ", bufPtr, len);
if (wantDecrypt)
mfTraceDecode(bufPtr, len, wantSaveToEmlFile);
mfTraceDecode(traceCrypto1, bufPtr, len, wantSaveToEmlFile);
num++;
}
bufPtr += len;

2
client/src/cmdlft55xx.c
View file

@ -54,7 +54,7 @@ t55xx_conf_block_t config = {
.downlink_mode = refFixedBit
};
t55xx_memory_item_t cardmem[T55x7_BLOCK_COUNT] = {{0}};
static t55xx_memory_item_t cardmem[T55x7_BLOCK_COUNT] = {{0}};
t55xx_conf_block_t Get_t55xx_Config(void) {
return config;

2
client/src/comms.c
View file

@ -36,7 +36,7 @@ static bool comm_thread_dead = false;
// Transmit buffer.
static PacketCommandOLD txBuffer;
static PacketCommandNGRaw txBufferNG;
size_t txBufferNGLen;
static size_t txBufferNGLen;
static bool txBuffer_pending = false;
static pthread_mutex_t txBufferMutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t txBufferSig = PTHREAD_COND_INITIALIZER;

15
client/src/mifare/mifarehost.c
View file

@ -955,9 +955,6 @@ static int traceState = TRACE_IDLE;
static uint8_t traceCurBlock = 0;
static uint8_t traceCurKey = 0;
struct Crypto1State *traceCrypto1 = NULL;
struct Crypto1State *revstate = NULL;
uint32_t cuid = 0; // uid part used for crypto1.
int isTraceCardEmpty(void) {
@ -1046,12 +1043,12 @@ int saveTraceCard(void) {
return PM3_SUCCESS;
}
//
int mfTraceInit(uint8_t *tuid, uint8_t uidlen, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {
int mfTraceInit(struct Crypto1State **traceCrypto1, uint8_t *tuid, uint8_t uidlen, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {
if (traceCrypto1)
crypto1_destroy(traceCrypto1);
if (*traceCrypto1)
crypto1_destroy(*traceCrypto1);
traceCrypto1 = NULL;
*traceCrypto1 = NULL;
if (wantSaveToEmlFile)
loadTraceCard(tuid, uidlen);
@ -1079,7 +1076,7 @@ void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len, bool i
}
}
int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
int mfTraceDecode(struct Crypto1State *traceCrypto1, uint8_t *data_src, int len, bool wantSaveToEmlFile) {
if (traceState == TRACE_ERROR)
return PM3_ESOFT;
@ -1209,7 +1206,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
uint64_t key = 0;
uint32_t ks2 = ar_enc ^ prng_successor(nt, 64);
uint32_t ks3 = at_enc ^ prng_successor(nt, 96);
revstate = lfsr_recovery64(ks2, ks3);
struct Crypto1State *revstate = lfsr_recovery64(ks2, ks3);
lfsr_rollback_word(revstate, 0, 0);
lfsr_rollback_word(revstate, 0, 0);
lfsr_rollback_word(revstate, nr_enc, 1);

4
client/src/mifare/mifarehost.h
View file

@ -81,8 +81,8 @@ int mfCWipe(uint8_t *uid, uint8_t *atqa, uint8_t *sak);
int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, uint8_t params);
int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params);
int mfTraceInit(uint8_t *tuid, uint8_t uidlen, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile);
int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile);
int mfTraceInit(struct Crypto1State **traceCrypto1, uint8_t *tuid, uint8_t uidlen, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile);
int mfTraceDecode(struct Crypto1State *traceCrypto1, uint8_t *data_src, int len, bool wantSaveToEmlFile);
int isTraceCardEmpty(void);
int isBlockEmpty(int blockN);