SCardConnect returns SCARD_E_PROTO_MISMATCH if SCARD_PROTOCOL_RAW was used in previous connection

[godfreychung]

I found a problem when using SCardConnect with SCARD_PROTOCOL_RAW. It always returns SCARD_E_PROTO_MISMATCH if SCARD_PROTOCOL_RAW was used in previous connection.

Please insert a card before running testraw.
After running testraw, it will generate the following output:

Establishing the context...
Getting reader names...
Reader 0: ACS ACR 38U-CCID 00 00
Select reader: 0
Connecting to the reader (shared, T=0 or T=1)...
Disconnecting the reader...
Connecting to the reader (direct, raw)...
Disconnecting the reader...
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Connecting to the reader (shared, T=0 or T=1)...
Error: SCardConnect failed with error 0x8010000F
Releasing the context...

Here is the test code (testraw.c.txt).
Here is the log from pcscd (log.txt).

[LudovicRousseau]

I don't think it is a bug in pcsclite.
Your program works fine if you use:

    err = SCardDisconnect(hCard, SCARD_RESET_CARD);

instead of:

    err = SCardDisconnect(hCard, SCARD_LEAVE_CARD);

You can't (re)connect using a different protocol without powering off or reseting the card first.

Have you tried your program on Windows?
What is the result?

[godfreychung]

Here is the result on Windows:

Establishing the context...
Getting reader names...
Reader 0: ACS CCID USB Reader 0
Select reader: 0
Connecting to the reader (shared, T=0 or T=1)...
Disconnecting the reader...
Connecting to the reader (direct, raw)...
Error: SCardConnect failed with error 0x000006F9
Connecting to the reader (shared, T=0 or T=1)...
Disconnecting the reader...
Releasing the context...

It seems that Windows does not support raw protocol.
I modified testraw2.c.txt for testing.

[LudovicRousseau]

Another test you can make on Windows is to use a card with support of both T=0 and T=1.
First you connect with T=0, disconnect, then connect with T=1.
It should fail the same way as with pcsclite.

[godfreychung]

Yes, I can reproduce the result on Windows.
It's clear now. Thanks!