- when listing the slots, we don't have a hotplug slot anymore with
slot->reader == NULL. Instead, we're now using this state for any left
over slots when a reader is removed. So we don't need to include this in
the slot list
- when listing the slots, we need to remember which slots the
application has seen already, to not shrink the list of slots (which is
allowed in PKCS#11 v2.2, but NSS can't handle this)
Macro DEBUG_VSS and routine _debug_virtual_slots were added.
DEBUG_VSS(slot, "printf like format string" [,args...]) will print the virtual_slots
to the opensc-debug.log showing were it was called from.
If slot is not NULL and found in the table it will be highlighted
with an "*".
In gdb: call _debug_virtual_slots(slot) can be used along with
another window to tail opensc-debug.log
On branch PKCS11-SLOTS-2
Date: Fri Feb 21 08:19:37 2020 -0600
Changes to be committed:
modified: src/pkcs11/sc-pkcs11.h
modified: src/pkcs11/slot.c
- allows re-attatching a reader to an existing reader object by
resetting the SC_READER_REMOVED flag
- readers that are flagged with SC_READER_REMOVED are not used for
SCardGetStatusChange to avoid SCARD_E_UNKNOWN_READER
fixes https://github.com/OpenSC/OpenSC/issues/1903
OpenSC PKCS11 now retains slots even when the reader is removed.
It can do this because existing OpenSC reader handling in ctx.c,
reader-pcsc.c and PC/SC allow OpenSC to do this.
This simplifies the code, and allow a reader to be reinserted
and use the existing slot. This matching is actually done
in reader-pcsc.c because PC/SC returns the unique ids based on
the OS reader names. This is then used as the manufacturerID
By not deleting slots the slot list can only increase which is a
restriction of Firefox. It does not fix all the Firefox issues, but
it does not go into a loop, when all the readers are removed.
The defaults in opensc.conf for max-virtual-readers and slots-per-card
allow for 4 different readers used during one session.
On branch PKCS11-SLOTS-3
Changes to be committed:
modified: sc-pkcs11.h
modified: slot.c
* distinguish between Internal and Working EFs
* add information optionally available in sc_file_t
- record_count
- record_length
- type_attr
* align all labelled values
Replace magic numbers, used as size of PIN-type buffers,
with the symbolic constant SC_MAX_PIN_SIZE, fixing
- readability / understandability
- too small sizes (e.g. for GnuPG cards)
* define file type SC_FILE_TYPE_UNKNOWN
* explicitly set file->type to SC_FILE_TYPE_UNKNOWN for unkown files
* store full-length file type attributes via sc_file_set_type_attr()
* parse # of records for record-oriented EFs
* parse record length for for EFs with fixed-size records
Note: I am not sure, parsing the record length only for EFs with fixed-
size records is the correct approach.
My interpretation of the norm is slightly different, but it seems
to be in-line what's currently in opensc:
- there's a comment hinting at that interpretation
- otherwise variable size records fail to be read in opensc-explorer
So I leave it this way for now.
Jakub Jelen
Frank Morgner
Doug Engert
Peter Marschall
Charlène