[Pcsclite-muscle] ccid: Change order of card readers

[Douglas E Engert]

What you should be dealing with is not the slot numbers, but the tokens in the slot.

Have a look at https://www.rfc-editor.org/rfc/rfc7512.html which tries address many of the following issues

PKCS11 does not really care about readers but the card in the readers

"CK_SLOT_ID is a Cryptoki-assigned value that identifies a slot." Each application gets a
list of known slots when it calls C_GetSlotList, Note the flags CKF_TOKEN_PRESENT and CKF_REMOVABLE_DEVICE
The list of slots will not change for that application until C_GetSlotList is called again. The
CKF_TOKEN_PRESENT may change if a card is removed or inserted.

If multiple applications call C_GetSlotList the slot numbers may be different if readers are are added or removed.
So you can not depend on the slot number. CKF_REMOVABLE_DEVICE distinguishes the difference.

The CK_SLOT_INFO slotDescription and manufacturerID  are set by the PKCS11  module (in your case Telesec)
which may or may not include the reader name.

C_GetTokenInfo is more of what you should look at, which serialNumber.

You may also find the OpenSC pkcs11-tool which can use any PKCS11 module to look at what the
Telesec pkcs11 module  does.

After all of this if your problem is something like trying to have one card for an ADMIN trying
to initialize a new card in another reader, you still need to tell the person which reader to insert
the new card.  One way to to have two different types of readers.
Personally I have found Identiv SCR3500 Smartfold Smart Card Reader to be good. Amazon   $17.95


On 11/7/2024 3:07 AM, Bernhard Walle wrote:
> Hello,
>
> I'm using Linux.
>
> Problem is that we don't use pcsc directly but via a PKCS#11 middleware (Telesec), so we're not dealing with reader names in PC/SC but with slot numbers in the PKCS#11.
>
>
> Regards,
> Bernhard
>
>
> Am 07.11.2024 02:52 schrieb Douglas E Engert:
>> If you have more then one reader,  you should be looking for the card
>> in the reader.
>> What code is calling PCSC?
>> What OS?
>>
>> On 11/6/2024 8:07 AM, Bernhard Walle wrote:
>>> Hello,
>>>
>>> is is possible to change the order of card readers detected by pcscd when using ccid drivers in some configuration file?
>>>
>>> I mean, we have two identical readers:
>>>
>>> $ pcsc_scan -r
>>> Using reader plug'n play mechanism
>>> Scanning present readers...
>>> 0: HID Global OMNIKEY 3x21 Smart Card Reader [OMNIKEY 3x21 Smart Card Reader] 00 00
>>> 1: HID Global OMNIKEY 3x21 Smart Card Reader [OMNIKEY 3x21 Smart Card Reader] 01 00
>>>
>>>
>>> So is it possible to revert the order?
>>>
>>>
>>> Regards,
>>> Bernhard
>>>
>>>
>>>
>>>
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-- 

  Douglas E. Engert  <DEEngert at gmail.com>