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CHG: corrections for the detection of chinese backdoor commands in cmdhf14a.c

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This commit is contained in:
iceman1001 2015-01-05 19:12:59 +01:00
commit 5db9756676
1 changed files with 18 additions and 7 deletions
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25
client/cmdhf14a.c
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@ -98,13 +98,6 @@ int CmdHF14AReader(const char *Cmd)
card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes
} }
// disconnect
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
bool ta1 = 0, tb1 = 0, tc1 = 0; bool ta1 = 0, tb1 = 0, tc1 = 0;
int pos; int pos;
@ -243,6 +236,24 @@ int CmdHF14AReader(const char *Cmd)
PrintAndLog("proprietary non iso14443-4 card found, RATS not supported"); PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
} }
// try to see if card responses to "chinese magic backdoor" commands.
c.cmd = CMD_MIFARE_CIDENT;
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
WaitForResponse(CMD_ACK,&resp);
uint8_t isOK = resp.arg[0] & 0xff;
PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
// disconnect
c.cmd = CMD_READER_ISO_14443a;
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
return select_status; return select_status;
} }