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191 Commits

Author SHA1 Message Date
Werner Koch
5732e7a8e9
scd: New option --pcsc-shared.
* 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.
2021-03-12 09:31:17 +01:00
Werner Koch
33aaa37e5b
scd:p15: Make it code work again for D-Trust cards.
* scd/app-p15.c (select_and_read_binary): Allow to skip the select.
(select_and_read_record): Return the statusword.  Silence error
message for SW_FILE_STRUCT.
(select_ef_by_path): Fix selection with a home_DF.
(read_first_record): Fallback to read_binary for CardOS and return
info about this.
(read_ef_prkdf): Use info from read_first_record to decide whether to
use record or binary mode.
(read_ef_pukdf): Ditto.
(read_ef_aodf): Ditto.
(read_ef_cdf): Ditto.  New arg cdftype for diagnostics.
(read_p15_info): Pass cdftype.

* scd/apdu.h (SW_FILE_STRUCT): New.
* scd/apdu.c (apdu_strerror): Map that one to a string.
* scd/iso7816.c (map_sw): and to a gpg-error.
2021-02-23 12:56:42 +01:00
Werner Koch
7620473cd0
scd: Define new status word
* scd/apdu.h (SW_NO_CURRENT_EF): New.
--

This merely to show better diagnostics.
Used for example by CardOS 5.3.
2021-01-27 18:31:12 +01:00
Werner Koch
0e34683a6c
scd: New getinfo sub-command apdu_strerror.
* scd/apdu.c (apdu_strerror): Add missing status codes.
* scd/command.c (cmd_getinfo): New sub-command apdu_strerror.
--

This is quite handy for gpg-card's APDU command and avoids that we
need to duplicate the mapping table or put it into a shared file.
2020-11-27 11:14:30 +01:00
Werner Koch
23f1fc766a
scd: Do not print reader status change with --debug cardio.
--

... but use --debug reader for this.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit bd3b698d8ec427a02f2fa793777f2a88bc356f25)
2020-11-11 15:23:26 +01:00
NIIBE Yutaka
f808012ac2 scd: Use lock_slot for apdu_send_direct.
* scd/apdu.c (apdu_send_direct): Use lock_slot.

--

With trylock_slot, it may return SW_HOST_BUSY.  This may occur when
apdu_get_status is called by scd_update_reader_status_file.

Simply using lock_slot is much easier for user of apdu_send_direct.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-11-05 16:10:49 +09:00
NIIBE Yutaka
c5e8ef3ab9 scd: Internal CCID: Clear the handle after use.
* scd/apdu.c (close_ccid_reader): Clear the handle.
(open_ccid_reader): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-09-28 13:33:20 +09:00
NIIBE Yutaka
93e3c97889 scd: For PC/SC, send the ESC command at init for SPR532 reader.
* scd/apdu.c (struct reader_table_s): Remove is_spr532.
(pcsc_vendor_specific_init): Send the ESC command for SPR532.
(pcsc_pinpad_verify, pcsc_pinpad_modify): Remove no_lc hack.

--

The "no_lc" hack lets PC/SC-lite send the ESC command for SPR532
internally, for pcsc_pinpad_verify.  However, PC/SC-lite doesn't do
that for pcsc_pinpad_modify, unfortunately.  Besides, I'm not sure
this hack works on Windows, which has different implementation of
PC/SC service.

It's better to send the ESC command by the driver explicitly, at the
initialization.  Sending the ESC command results PCSC_E_NOT_TRANSACTED
error when a card is not active (that is the case, usually).  We
ignore this error.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-09-25 11:24:39 +09:00
Werner Koch
0e721b635d
scd: Increase the number of supported readers from 4 to 16.
--

The limit on 4 readers I introduced in 2003 is too low for some of our
use cases.  16 looks better.   TODO: Return a useful error message in
gpg-card if the limit has been reached.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-09-04 12:51:54 +02:00
Werner Koch
2af884c643
scd: Log info about CCIDs with permission problems.
* scd/apdu.c (open_ccid_reader): Add arg r_cciderr.
(apdu_open_reader): Print a note on EPERM of the USB device.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-12 16:44:22 +02:00
Werner Koch
9a8d7e41bb
scd: Map some error codes from libusb to ccid-driver error codes.
* scd/ccid-driver.h (CCID_DRIVER_ERR_USB_*): New error codes.
* scd/apdu.h: New SW_HOST error codes.
* scd/apdu.c (host_sw_string): Print them
* scd/ccid-driver.c (map_libusb_error): New.
(ccid_open_usb_reader, bulk_in, abort_cmd): Map libusb error codes.
* scd/iso7816.c (map_sw): Map new codes to gpg-error.
--

This change will help to get low level error conditions from hipher
application code.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-12 16:06:49 +02:00
NIIBE Yutaka
daa2cec6a5 scd: Fix closing reader and reeleasing context in PC/SC.
* scd/apdu.c (close_pcsc_reader): Unlock the reader_table_lock.
(apdu_dev_list_finish): Release the context when no readers.

--

Fixes-commit: 46d185f60397f68830bfdfb99627b29aea5016f1
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-07-17 20:42:38 +09:00
NIIBE Yutaka
46d185f603 scd: PC/SC: Don't release the context when it's in use.
* scd/apdu.c (close_pcsc_reader): Check if it's not in the loop.

--

GnuPG-bug-id: 4998
Reported-by: Kevin Locke
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-07-17 11:11:45 +09:00
Werner Koch
9b6f574928
scd: Shorten cardio debug output for all zeroes.
* scd/apdu.c (all_zero_p): New.
(send_le): Use it.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-06-29 15:04:08 +02:00
NIIBE Yutaka
49671b76ea scd,pcsc: Use HANDLE for context and card.
* scd/apdu.c (HANDLE): New.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-17 19:54:52 +09:00
NIIBE Yutaka
980d0234d3 scd: Remove old fallback logic from CCID to PC/SC.
* scd/apdu.c (apdu_dev_list_start): Return an error on failure.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-12 09:34:34 +09:00
NIIBE Yutaka
6d750fe7fc scd,pcsc: Support "reader-port" option for PC/SC reader.
* scd/apdu.c (apdu_open_reader): Skip use of a reader if it's not the
one specified when it is specified.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-12 09:30:37 +09:00
NIIBE Yutaka
c569e49d17 scd,pcsc: Remove the restriction of no-scanning in PC/SC.
* scd/apdu.h (app_open_reader): Remove the last argument.
* scd/apdu.c (app_open_reader): Ditto.
* scd/app.c (select_application): Don't supply APP_EMPTY.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-12 08:48:48 +09:00
NIIBE Yutaka
92be4e87ee scd,pcsc: Fix examining the list of readers.
* scd/apdu.c (apdu_dev_list_start): Traverse the string+NUL carefully.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-11 11:05:03 +09:00
NIIBE Yutaka
441106cdf0 scd,pcsc: Fix for initializing PC/SC.
* scd/apdu.c (pcsc_init): Load it at first.
(apdu_open_reader): Check for the CCID internal driver.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-11 10:36:29 +09:00
NIIBE Yutaka
e8534f8999 scd,pcsc: Support multiple card readers.
* scd/apdu.c (close_pcsc_reader, apdu_init): Clear pcsc.rdrname.
(pcsc_init): Load of PC/SC module moved from ...
(open_pcsc_reader): ... here.
(apdu_dev_list_start): Add support for PC/SC.
(apdu_dev_list_finish): Likewise.
(apdu_open_reader): Likewise.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-11 10:11:33 +09:00
NIIBE Yutaka
1080e91efd scd,pcsc: Use a single context.
* scd/apdu.c (pcsc): New variable.
(struct reader_table_s): Remove pcsc.context from member.
(pcsc_get_status, connect_pcsc_card): Use pcsc.context.
(close_pcsc_reader): Release pcsc.context here with reference count.
(pcsc_init): New.
(open_pcsc_reader): Don't call pcsc_establish_context here.  Call
close_pcsc_reader instead of pcsc_release_context.
(apdu_open_reader): Call pcsc_init if needed.
(apdu_init): Initialize pcsc.count and pcsc.context.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-11 10:11:25 +09:00
NIIBE Yutaka
f44aa290c1 scd: Clean up the structure for future fix of PC/SC.
* scd/apdu.c (struct dev_list): Rename from ccid_table, with void*.
(open_ccid_reader): Follow the change.
(apdu_dev_list_start, apdu_dev_list_finish): Likewise.
(apdu_open_reader): Likewise.
* scd/ccid-driver.c (ccid_dev_scan): Use void *.
(ccid_dev_scan_finish, ccid_get_BAI, ccid_open_usb_reader): Likewise.
* scd/ccid-driver.h: Change the APIs.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-09-11 10:11:18 +09:00
NIIBE Yutaka
100642e776 scd: Remove fallback mechanism to PC/SC.
* scd/apdu.c [HAVE_LIBUSB] (apdu_open_reader): Simply let it fail.

GnuPG-bug-id: 4673
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-08-07 08:50:19 +09:00
Werner Koch
fb1c8978f5
scd: Remove useless GNUPG_SCD_MAIN_HEADER macro.
* scd/apdu.c (): Remove never set and useless macro.
* scd/ccid-driver.c: Ditto.
* scd/iso7816.c: Ditto.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-07-12 13:39:47 +02:00
NIIBE Yutaka
1eb93d9229 scd: Fix for SCARD_IO_REQUEST structure.
* scd/apdu.c (struct pcsc_io_request_s): Use pcsc_dword_t for Windows.

--

This fix is for correctness and for the future when we will support
64-bit Windows.

GnuPG-bug-id: 4454
Suggested-by: Juris Ozols
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-05-21 16:38:23 +09:00
Werner Koch
79c99921e3
scd: Remove unused cruft from GnuPG 1.x
* scd/apdu.c: Remove code used only by GnuPG 1.
* scd/app-openpgp.c: Ditto.
* scd/ccid-driver.c: Ditto.
* scd/iso7816.c: Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-05-16 08:24:42 +02:00
Werner Koch
70bb5c7931
scd: One new and one improved 7816 function.
* scd/apdu.c (apdu_send_direct): New arg R_SW.
* scd/command.c (cmd_apdu): Ditto.
* scd/iso7816.c (iso7816_apdu_direct): New arg R_SW.
(iso7816_general_authenticate): New.
* scd/app-nks.c (get_chv_status, get_nks_version): Pass NULL for new
arg.
--

iso7816_general_authenticate will be used for the PIV card support.
The new arg to iso7816_apdu_direct and apdu_send_direct allows to get
the raw status word back without the need to handle an output buffer.

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-01-20 11:41:23 +01:00
Daniel Kahn Gillmor
54eb375ff1 all: fix spelling and typos
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2018-10-24 15:56:18 -04:00
NIIBE Yutaka
7a5a4c4cac scd: Support "acknowledge button" feature.
* scd/apdu.c (set_prompt_cb): New member function.
(set_prompt_cb_ccid_reader): New function.
(open_ccid_reader): Initialize with set_prompt_cb_ccid_reader.
(apdu_set_prompt_cb): New.
* scd/app.c (lock_app, unlock_app): Add call to apdu_set_prompt_cb.
* ccid-driver.c (ccid_set_prompt_cb): New.
(bulk_in): Call ->prompt_cb when timer extension.
* scd/command.c (popup_prompt): New.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-10-11 15:41:49 +09:00
Jiří Keresteš
967d3649d2 scd: Add support for Trustica Cryptoucan. 2018-07-26 11:44:50 +09:00
Werner Koch
d4dc4245bf
Merge branch 'STABLE-BRANCH-2-2' into master 2018-03-27 08:48:00 +02:00
NIIBE Yutaka
c84bae69e9 scd: After fatal error, shutdown a reader.
* scd/apdu.c (pcsc_send_apdu): Notify main loop after
fatal errors.

--

GnuPG-bug-id: 3825
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-13 12:53:49 +09:00
NIIBE Yutaka
655f0b9ad0 scd: Fix typo in previous commit.
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-12 10:17:05 +09:00
NIIBE Yutaka
1e27c0e04c scd: More fix with PC/SC for Windows.
* scd/apdu.c (pcsc_get_status): Return status based on CURRENT_STATUS.
Add debug log.

--

GnuPG-bug-id: 3825
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-09 08:56:50 +09:00
NIIBE Yutaka
f8b8b6aac2 scd: Fix status check when using PC/SC.
* scd/apdu.c (struct reader_table_s): Add field of current_state.
(new_reader_slot): Initialize current_state.
(pcsc_get_status): Keep the status in READER_TABLE array.
Return SW_HOST_NO_READER when PCSC_STATE_CHANGED.
* scd/scdaemon.c (handle_connections): Silence a warning.

--

To detect some change of card status, including suspend/resume
possibly, SCardGetStatusChange should be used keeping the
dwCurrentState field.

This change could improve situation for suspend/resume with Yubikey on
Windows.  Even not, this is doing the Right Thing.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-03-08 16:51:51 +09:00
Werner Koch
b56dfdfc18
Use the gpgrt log functions if possible.
* common/logging.c: Do not build any code if we can use the gpgrt_log
functions.
(log_logv_with_prefix): Rename to log_logv_prefix and change order of
args so that this function matches its printf like counterpart
gpgrt_logv_prefix.  Change all callers.
(log_debug_with_string): Rename to log_debug_string. Change all
callers.
(log_printhex): Move first arg to end so that this function matches
its printf like counterpart gpgrt_log_printhex.  Change all callers.
* common/logging.h: Divert to gpgrt/libgpg-error if we can use the
gpgrt_log functions.
(bug_at): Add inline versions if we can use the gpgrt_log functions.
* configure.ac (GPGRT_ENABLE_LOG_MACROS): Add to AH_BOTTOM.
(mycflags): Add -Wno-format-zero-length.
--

This patch enables the use of the log function from libgpgrt (aka
libgpg-error).  Instead of checking a version number, we enable them
depending on macros set by recent gpg-error versions.  Eventually the
whole divert stuff can be removed.

The -Wno-format-zero-length is required because log_printhex can be
called with an empty format string.  Note that this is fully specified
standard C behaviour.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-27 15:00:25 +01:00
Werner Koch
fe96ca8d86
Merge branch 'STABLE-BRANCH-2-2'
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-11-23 15:12:45 +01:00
NIIBE Yutaka
0bb7fd0cab scd: Enable card removal check after select_application.
* scd/apdu.c (open_ccid_reader): Fix error handling of ccid_get_atr.
* scd/app.c (select_application): Always kick the loop if new APP.
* scd/ccid-driver.c (ccid_open_usb_reader): Don't setup at open.
(ccid_slot_status): Setup interrupt transfer when !ON_WIRE.

--

We can use the interrupt transfer to be notified about card status
change.  In this case, we don't need to issue PC_to_RDR_GetSlotStatus
command.  This change improve the setup the notification; it should be
done after registration of APP.

When the setup is done just after opening the USB connection (before
issuing PC_to_RDR_IccPowerOn), a reader might notifies about no card
availability (because of not yet powered on), even though the card is
ready to be powered on.

GnuPG-bug-id: 3508
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-11-21 12:19:15 +09:00
NIIBE Yutaka
2396055c09 scd: Distinguish cancel by user and protocol error.
* scd/apdu.h (SW_HOST_CANCELLED): New.
* scd/apdu.c (host_sw_string): Support SW_HOST_CANCELLED.
(pcsc_error_to_sw): Return SW_HOST_CANCELLED for PCSC_E_CANCELLED.
* scd/iso7816.c (map_sw): Return GPG_ERR_INV_RESPONSE for
SW_HOST_ABORTED and GPG_ERR_CANCELED for SW_HOST_CANCELLED.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-09-20 10:06:43 +09:00
NIIBE Yutaka
5c8fe54809 Spelling fixes in docs and comments.
--

In addition, fix trailing spaces in tests/inittests.

GnuPG-bug-id: 3121
Reported-by: ka7 (klemens)
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-28 10:06:33 +09:00
NIIBE Yutaka
3c93595d70 scd: Don't keep CCID reader open when card is not available.
* scd/apdu.c (open_ccid_reader): Fail if no ATR.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-04-07 12:18:16 +09:00
NIIBE Yutaka
70aca95d68 Remove -I option to common.
* dirmngr/Makefile.am (AM_CPPFLAGS): Remove -I$(top_srcdir)/common.
* g10/Makefile.am (AM_CPPFLAGS): Ditto.
* g13/Makefile.am (AM_CPPFLAGS): Ditto.
* kbx/Makefile.am (AM_CPPFLAGS): Ditto.
* scd/Makefile.am (AM_CPPFLAGS): Ditto.
* sm/Makefile.am (AM_CPPFLAGS): Ditto.
* tools/Makefile.am (AM_CPPFLAGS): Ditto.
* Throughout: Follow the change.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-07 20:25:54 +09:00
NIIBE Yutaka
cb6337329d scd: Clean up old code.
* scd/apdu.c (CT_init, CT_data, CT_close): Remove.
(ct_error_string, ct_activate_card, close_ct_reader, reset_ct_reader)
(ct_get_status, ct_send_apdu, open_ct_reader): Remove.
(new_reader_slot) [NEED_PCSC_WRAPPER]: Remove fd and pid handling.
(writen, readn): Remove.
(pcsc_get_status, pcsc_send_apdu, control_pcsc, close_pcsc_reader)
(reset_pcsc_reader, open_pcsc_reader): Only DIRECT version.
(apdu_open_one_reader): Remove CT_api handling.
(apdu_get_status_internal, send_le): Fix to stop warnings.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-03-06 14:18:06 +09:00
Yuri Chornoivan
24cf0606b4 Clean up word replication.
--

This fixes extra word repetitions (like "the the" or "is is") in the
code and docs.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2017-02-21 13:11:46 -05:00
NIIBE Yutaka
da4c132cca scd: Fix use case of PC/SC.
* scd/apdu.c (apdu_open_reader): Add an argument APP_EMPTY.
When CCID driver fails to open, try PC/SC if APP is nothing.
* scd/app.c (select_application): Supply arg if APP is nothing.

--

After scanning available card readers by CCID driver, scdaemon should
try PC/SC service if no APP is registered yet.  Also, when the slot
is allocated for PC/SC (ccid.handle==NULL), it should not call
ccid_compare_BAI, otherwise scdaemon crashes.

Debian-bug-id: 852702, 854005, 854595, 854616

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-02-13 11:09:13 +09:00
NIIBE Yutaka
2a025039c1 scd: Fix GetSlotStatus.
* scd/apdu.c (get_status_reader): Add ON_WIRE arg, here.
(ct_get_status, pcsc_get_status_direct, pcsc_get_status_wrapped)
(pcsc_get_status, get_status_ccid, my_rapdu_get_status): Likewise.
(reset_pcsc_reader_wrapped, open_pcsc_reader_wrapped): Follow the
change.
(apdu_get_status_internal): It's lower-level driver which judge
it's not needed.  Otherwise, it can't detect the removal.
* scd/ccid-driver.c (ccid_slot_status): After the POWERED_OFF check,
we can skip sending GetSlotStatus packet on wire, when no need.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
Fixes-commit: c8eee4d396a751d41fd1ee1e1b87b851fca172a
2017-01-30 09:32:03 +09:00
NIIBE Yutaka
7c8eee4d39 scd: Don't send GET_STATUS packet if not needed.
* scd/apdu.c (apdu_get_status_internal): Add ON_WIRE arg.
(apdu_connect): Call apdu_get_status_internal with ON_WIRE enabled.
(apdu_get_status): For periodical check, call apdu_get_status_internal
with ON_WIRE disabled.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-01-30 09:05:37 +09:00
NIIBE Yutaka
25cc8575da scd: Improve watching USB device removal.
* scd/apdu.c(struct reader_table_s): Add require_get_status.
(apdu_connect): Change return value meaning.  Call apdu_reset here.
* scd/app.c (app_new_register): Add require_get_status.
(select_application): Use the return value of apdu_connect.
(scd_update_reader_status_file): Call update_fdset_for_usb with
checking all_have_intr_endp.
(app_list_start, app_list_finish): Remove.
* scd/ccid-driver.c (struct ccid_driver_s): Add transfer.
(intr_cb): Don't call libusb_transfer in this callback.
(ccid_require_get_status): New.
(do_close_reader): Call libusb_transfer here.
* scd/scdaemon.c (update_fdset_for_usb): Remove the first argument.

--

With Gnuk Token, it works fine as expected.  With Gemalto reader,
intr_cb is not called when card is removed.  So, the macro
LIBUSB_WORKS_EXPECTED_FOR_INTERRUPT_ENDP is not defined yet.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-01-27 18:01:52 +09:00
NIIBE Yutaka
881dcdfd84 scd: Only submit apdu_get_status when needed.
* scd/apdu.c (apdu_dev_list_finish): Return Boolean value if
all device support INTERRUPT transfer.
* scd/ccid-driver.c (ccid_dev_scan_finish): Likewise.
* scd/app.c (app_new_register): Fix initial value of card_status.
(select_application): Call update_fdset_for_usb.
(scd_update_reader_status_file): Ditto.
* scd/scdaemon.c (update_fdset_for_usb, need_tick): New.
(handle_connections): Call handle_tick when select returns.
Let select watch USB file descriptors, too.
Call libusb_handle_events_timeout_completed for INTERRUPT transfer.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2017-01-26 22:02:41 +09:00