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6 months worth of security patches! #2

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6 months worth of security patches! #2

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13 changes: 9 additions & 4 deletions SN100x/halimpl/mifare/NxpMfcReader.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -54,13 +54,13 @@ int NxpMfcReader::Write(uint16_t mfcDataLen, const uint8_t *pMfcData) {
BuildMfcCmd(&mfcTagCmdBuff[3], &mfcTagCmdBuffLen);

mfcTagCmdBuff[2] = mfcTagCmdBuffLen;
mfcDataLen = mfcTagCmdBuffLen + NCI_HEADER_SIZE;
int writtenDataLen = phNxpNciHal_write_internal(mfcDataLen, mfcTagCmdBuff);
int writtenDataLen = phNxpNciHal_write_internal(
mfcTagCmdBuffLen + NCI_HEADER_SIZE, mfcTagCmdBuff);

/* send TAG_CMD part 2 for Mifare increment ,decrement and restore commands */
if (mfcTagCmdBuff[4] == eMifareDec || mfcTagCmdBuff[4] == eMifareInc ||
mfcTagCmdBuff[4] == eMifareRestore) {
SendIncDecRestoreCmdPart2(pMfcData);
SendIncDecRestoreCmdPart2(mfcDataLen, pMfcData);
}
return writtenDataLen;
}
Expand Down Expand Up @@ -264,14 +264,19 @@ void NxpMfcReader::AuthForWrite() {
** Returns None
**
*******************************************************************************/
void NxpMfcReader::SendIncDecRestoreCmdPart2(const uint8_t *mfcData) {
void NxpMfcReader::SendIncDecRestoreCmdPart2(uint16_t mfcDataLen,
const uint8_t *mfcData) {
NFCSTATUS status = NFCSTATUS_SUCCESS;
/* Build TAG_CMD part 2 for Mifare increment ,decrement and restore commands*/
uint8_t incDecRestorePart2[] = {0x00, 0x00, 0x05, (uint8_t)eMfRawDataXchgHdr,
0x00, 0x00, 0x00, 0x00};
uint8_t incDecRestorePart2Size =
(sizeof(incDecRestorePart2) / sizeof(incDecRestorePart2[0]));
if (mfcData[3] == eMifareInc || mfcData[3] == eMifareDec) {
if (incDecRestorePart2Size >= mfcDataLen) {
incDecRestorePart2Size = mfcDataLen - 1;
android_errorWriteLog(0x534e4554, "238177877");
}
for (int i = 4; i < incDecRestorePart2Size; i++) {
incDecRestorePart2[i] = mfcData[i + 1];
}
Expand Down
4 changes: 2 additions & 2 deletions SN100x/halimpl/mifare/NxpMfcReader.h
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Original file line number Diff line number Diff line change
Expand Up @@ -109,12 +109,12 @@ class NxpMfcReader {
void BuildIncDecCmd();
void CalcSectorAddress();
void AuthForWrite();
void SendIncDecRestoreCmdPart2(const uint8_t *mfcData);
void SendIncDecRestoreCmdPart2(uint16_t mfcDataLen, const uint8_t *mfcData);

public:
int Write(uint16_t mfcDataLen, const uint8_t *pMfcData);
NFCSTATUS AnalyzeMfcResp(uint8_t *pBuff, uint16_t *pBufflen);
NFCSTATUS CheckMfcResponse(uint8_t *pTransceiveData,
uint16_t transceiveDataLen);
static NxpMfcReader &getInstance();
};
};