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scd: New option --pcsc-shared.

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* scd/scdaemon.h (opt): Add field opcsc_shared.
* scd/scdaemon.c (opcscShared): New.
(opts): Add "--pcsc-shared".
(main): Set flag.
* scd/apdu.c (connect_pcsc_card): Use it.
(pcsc_get_status): Take flag in account.
* scd/app-openpgp.c (cache_pin): Bypass in shared mode.
(verify_chv2: Do not auto verify chv1 in shared mode.
* scd/app-piv.c (cache_pin): By pass caceh in shared mode.
--

This option should in general not be used.  The patch tries to limit
bad effects but using shared mode is somewhat dangerous depending on
the other PC/SC users.
This commit is contained in:
Werner Koch 2021-03-12 09:21:57 +01:00
parent 95156ef9bf
commit 5732e7a8e9
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GPG key ID: E3FDFF218E45B72B
6 changed files with 23 additions and 4 deletions
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3
scd/scdaemon.c
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@ -94,6 +94,7 @@ enum cmd_and_opt_values
oCardTimeout,
octapiDriver,
opcscDriver,
opcscShared,
oDisableCCID,
oDisableOpenSC,
oDisablePinpad,
@ -150,6 +151,7 @@ static gpgrt_opt_t opts[] = {
N_("|NAME|use NAME as ct-API driver")),
ARGPARSE_s_s (opcscDriver, "pcsc-driver",
N_("|NAME|use NAME as PC/SC driver")),
ARGPARSE_s_n (opcscShared, "pcsc-shared", "@"),
ARGPARSE_s_n (oDisableCCID, "disable-ccid",
#ifdef HAVE_LIBUSB
N_("do not use the internal CCID driver")
@ -602,6 +604,7 @@ main (int argc, char **argv )
case oReaderPort: opt.reader_port = pargs.r.ret_str; break;
case octapiDriver: opt.ctapi_driver = pargs.r.ret_str; break;
case opcscDriver: opt.pcsc_driver = pargs.r.ret_str; break;
case opcscShared: opt.pcsc_shared = 1; break;
case oDisableCCID: opt.disable_ccid = 1; break;
case oDisableOpenSC: break;