in cases where you use pam_pkcs11, HOME might not be set
so paths based on $HOME are not usable, so that the combination
of home and caching does not work. Having the paths configurable
(together with a good setting of access rights)
resolves that problem.
The special value still needs to be handled for commands that are issued
during card initialization. This especially concerns T=0 cards that need
to use iso_get_response.
fixes#533
regression of 85b79a3332
This adds support for the Yubikey NEO. I'm not sure whether it breaks
the specification, or follows some other version of the spec, but in my
testing it returns SW1=0x63, SW2=0x0N for N PIN tries remaining.
Ignoring the top nibble seems a harmless change to the behaviour to
support this device.
This is already supported for a couple of the card drivers, but
since it's a general feature of ISO7816 it should go in iso7816.c,
rather than the current situation where identical code for this is
copy and pasted in each driver.
However, some cards apparently don't support this feature and count
it as a failed PIN attempt, so I've added a flag for now to indicate
whether the card supports this feature. It future, it could be moved
to blacklist cards rather than whitelist them, subject to more testing.
If the reader announces extended length support, but the card driver
leaves max_send_size/max_recv_size at `0`, max_send_size/max_recv_size
previously would have been overwritten with the reader's size though the
card might not have set SC_CARD_CAP_APDU_EXT. This commit fixes this
behavior.
Additionally card->max_send_size/max_recv_size is always initialized to
a value different from 0 after the card initialization. This removes the
need to check for this special value in all subsequent calls.
../../src/libopensc/errors.h:73:37: warning: statement with no effect [-Wunused-value]
#define SC_ERROR_INVALID_ARGUMENTS -1300
^
card-masktech.c:181:48: note: in expansion of macro 'SC_ERROR_INVALID_ARGUMENTS'
if (crgram_len > SC_MAX_EXT_APDU_BUFFER_SIZE) SC_ERROR_INVALID_ARGUMENTS;
card-piv.c tries to read the first 8 bytes of an object to get object size
so it can allocate a buffer. It then reads the whole object. apdu.c has changed
over the years, and apdu.c will keep reading as long as the card returns
status of 61 XX thus apdu.c will read the whole object while discarding
the extra data and returning to the caller only the first part of the data.
This in effect causes a double read of objects.
This patch sets SC_APDU_FLAGS_NO_GET_RESP to tell apdu to stop doing the
extra get-response commands thus avoiding most of the extra overhead.
This in not an optimal patch as it only works with T=1 cards/readers
but the patch is confined to just card-piv.c.
A better patch is in the works.
Fixes#462