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fix states and get rid of INS code in receive (that code checks by controller)

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This commit is contained in:
merlokk 2018-12-18 14:33:28 +02:00
commit f32088e25c
2 changed files with 24 additions and 26 deletions
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48
client/cmdsmartcard.c
View file

@ -306,7 +306,7 @@ static int smart_wait(uint8_t *data) {
return len;
}
static int smart_response(uint8_t apduINS, uint8_t *data) {
static int smart_response(uint8_t *data) {
int datalen = smart_wait(data);
bool needGetData = false;
@ -315,12 +315,6 @@ static int smart_response(uint8_t apduINS, uint8_t *data) {
goto out;
}
if (datalen > 2 && data[0] != apduINS) {
PrintAndLogEx(ERR, "Card ACK error. len=0x%x data[0]=%02x", datalen, data[0]);
datalen = 0;
goto out;
}
if ( data[datalen - 2] == 0x61 || data[datalen - 2] == 0x9F ) {
needGetData = true;
}
@ -339,22 +333,26 @@ static int smart_response(uint8_t apduINS, uint8_t *data) {
if (datalen < 2 ) {
goto out;
}
if (datalen > 2 && data[0] != ISO7816_GETSTATUS) {
PrintAndLogEx(ERR, "GetResponse ACK error. len=0x%x data[0]=%02x", len, data[0]);
datalen = 0;
goto out;
}
if (datalen != len + 2 + 1) { // 2 - response, 1 - ACK
PrintAndLogEx(WARNING, "GetResponse wrong length. Must be: 0x%02x but: 0x%02x", len, datalen - 3);
// data wo ACK
if (datalen != len + 2) {
// data with ACK
if (datalen == len + 2 + 1) { // 2 - response, 1 - ACK
if (data[0] != ISO7816_GETSTATUS) {
PrintAndLogEx(ERR, "GetResponse ACK error. len=0x%x data[0]=%02x", len, data[0]);
datalen = 0;
goto out;
}
datalen--;
memmove(data, &data[1], datalen);
} else {
// wrong length
PrintAndLogEx(WARNING, "GetResponse wrong length. Must be: 0x%02x but: 0x%02x", len, datalen - 3);
}
}
}
if (datalen > 2) {
datalen--;
memmove(data, &data[1], datalen);
}
out:
return datalen;
}
@ -441,7 +439,7 @@ int CmdSmartRaw(const char *Cmd) {
if ( !buf )
return 1;
int len = smart_response(data[1], buf);
int len = smart_response(buf);
if ( len < 0 ) {
free(buf);
return 2;
@ -453,7 +451,7 @@ int CmdSmartRaw(const char *Cmd) {
memcpy(c.d.asBytes, data, sizeof(data) );
clearCommandBuffer();
SendCommand(&c);
len = smart_response(data[1], buf);
len = smart_response(buf);
data[4] = 0;
}
@ -481,7 +479,7 @@ int ExchangeAPDUSC(uint8_t *datain, int datainlen, bool activateCard, bool leave
clearCommandBuffer();
SendCommand(&c);
int len = smart_response(datain[1], dataout);
int len = smart_response(dataout);
if ( len < 0 ) {
return 2;
@ -501,7 +499,7 @@ int ExchangeAPDUSC(uint8_t *datain, int datainlen, bool activateCard, bool leave
clearCommandBuffer();
SendCommand(&c2);
len = smart_response(datain[1], dataout);
len = smart_response(dataout);
}
*dataoutlen = len;
@ -822,7 +820,7 @@ int CmdSmartBruteforceSFI(const char *Cmd) {
clearCommandBuffer();
SendCommand(&c);
smart_response(data[1], buf);
smart_response(buf);
// if 0x6C
if ( buf[0] == 0x6C ) {
@ -831,7 +829,7 @@ int CmdSmartBruteforceSFI(const char *Cmd) {
memcpy(c.d.asBytes, data, sizeof(data) );
clearCommandBuffer();
SendCommand(&c);
uint8_t len = smart_response(data[1], buf);
uint8_t len = smart_response(buf);
// TLV decoder
if (len > 4)

2
include/mifare.h
View file

@ -109,7 +109,7 @@ typedef enum SMARTCARD_COMMAND {
SC_CONNECT = (1 << 0),
SC_NO_DISCONNECT = (1 << 1),
SC_RAW = (1 << 2),
SC_SELECT = (1 << 3)
SC_SELECT = (1 << 3),
SC_RAW_T0 = (1 << 4),
} smartcard_command_t;