1
0
mirror of git://git.gnupg.org/gnupg.git synced 2024-06-02 22:38:02 +02:00
Commit Graph

350 Commits

Author SHA1 Message Date
NIIBE Yutaka
b526f6e223 SCD: API cleanup for keypad handling.
* scd/iso7816.h (struct pininfo_s): Rename from iso7816_pininfo_s.
Change meaning of MODE.
(pininfo_t): Rename from iso7816_pininfo_t.
* scd/sc-copykeys.c: Include "iso7816.h".
* scd/scdaemon.c, scd/command.c: Likewise.
* scd/ccid-driver.c: Include "scdaemon.h" and "iso7816.h".
(ccid_transceive_secure): Follow the change of PININFO_T.
* scd/app.c: Include "apdu.h" after "iso7816.h".
* scd/iso7816.c (iso7816_check_keypad, iso7816_verify_kp)
(iso7816_change_reference_data_kp): Follow the change of API.
* scd/apdu.c (struct reader_table_s): Change API of CHECK_KEYPAD,
KEYPAD_VERIFY, KEYPAD_MODIFY to have arg of PININFO_T.
(check_pcsc_keypad, check_ccid_keypad): Likewise.
(apdu_check_keypad, apdu_keypad_verify, apdu_keypad_modify): Likewise.
(pcsc_keypad_verify, pcsc_keypad_modify, ct_send_apdu)
(pcsc_send_apdu_direct,  pcsc_send_apdu_wrapped, pcsc_send_apdu)
(send_apdu_ccid, ccid_keypad_operation, my_rapdu_send_apdu, send_apdu)
(send_le): Follow the change of API.
* scd/apdu.h (apdu_check_keypad, apdu_keypad_verify)
(apdu_keypad_modify): Change the API.
* scd/app-dinsig.c, scd/app-nks.c, scd/app-openpgp.c: Follow the
change.
2013-02-05 13:37:06 +09:00
NIIBE Yutaka
ca89277cb4 SCD: Clean up. Remove PADLEN for keypad input.
* scd/apdu.c (struct pininfo_s): Use iso7816_pininfo_s.
(struct reader_table_s): Remove last arg from check_keypad method.
(check_pcsc_keypad, check_pcsc_keypad): Remove PIN_PADLEN.
(pcsc_keypad_verify, pcsc_keypad_modify): Don't check PIN_PADLEN.
(send_apdu_ccid, ccid_keypad_operation): Remove PIN_PADLEN.
(apdu_check_keypad, apdu_keypad_verify, apdu_keypad_modify):
Likewise.

* scd/apdu.h (apdu_check_keypad, apdu_keypad_verify)
(apdu_keypad_modify): Remove PIN_PADLEN.

* scd/ccid-driver.c (ccid_transceive_secure): Remove PIN_PADLEN.

* scd/ccid-driver.h (ccid_transceive_secure): Remove PIN_PADLEN.

* scd/iso7816.c (iso7816_check_keypad, iso7816_verify_kp)
(iso7816_change_reference_data_kp): Remove PADLEN.

* scd/iso7816.h (struct iso7816_pininfo_s): Remove PADLEN, PADCHAR.
--
In the OpenPGPcard specification, password comes with no padding.  In
GnuPG, we support keypad input for OpenPGPcard only.  Thus, it is
useless to try to support padding for keypad input.
2013-02-05 13:35:44 +09:00
NIIBE Yutaka
d9f6cc7502 SCD: Add option enable-keypad-varlen and support for GEMPC_PINPAD.
* scd/scdaemon.h (opt): Add enable_keypad_varlen.
* scd/scdaemon.c (cmd_and_opt_values): Add oEnableKeypadVarlen.
(opts, main): Add oEnableKeypadVarlen.
* scd/ccid-driver.c (GEMPC_PINPAD): New.
(ccid_transceive_secure): Add enable_varlen handling.
Enable GEMPC_PINPAD.
--
Note that GEMPC_PINPAD doesn't support variable length keypad input.
The feature of fixed length keypad input will be added soon.
2013-02-05 13:33:44 +09:00
NIIBE Yutaka
4dddf32c83 SCD: Hold lock for pinpad input.
* scd/apdu.c (apdu_check_keypad, apdu_keypad_verify)
(apdu_keypad_modify): Hold lock to serialize communication.
2013-01-11 11:18:39 +09:00
NIIBE Yutaka
a776f66036 SCD: Support not-so-smart card readers.
* scd/ccid-driver.c (struct ccid_driver_s): Add auto_voltage,
auto_param, and auto_pps.
(parse_ccid_descriptor): Set auto_voltage, auto_param, and auto_pps.
Support non-autoconf readers.
(update_param_by_atr): New.
(ccid_get_atr): Use 5V for PowerOn when auto_voltage is not supported.
Use 0x10 when nonnull_nad for SetParameters.
Call update_param_by_atr for parsing ATR, and use param for
SetParameters.
Send PPS if reader requires it and card is negotiable.
When bNadValue in the return values of SetParameters == 0,
clear handle->nonnull_nad flag.
--
This change is to support more card readers by the internal driver.
Tested with 08e6:3478 Gemplus PinPad Smart Card Reader.
2013-01-08 15:22:31 +09:00
NIIBE Yutaka
e7dca3e83e SCD: Fix the process of writing key or generating key.
* scd/app-openpgp.c (store_fpr): Flush KEY-FPR and KEY-TIME.
2012-12-13 13:44:43 +09:00
NIIBE Yutaka
1e1326aeb8 Revert SCD changes of 2010-05-03.
* scd/apdu.c (pcsc_no_service): Remove.
(open_pcsc_reader_direct, open_pcsc_reader_wrapped): Remove
pcsc_no_service support.
(apdu_open_reader): Remove R_NO_SERVICE.
* scd/apdu.h (apdu_open_reader): Remove R_NO_SERVICE.
* scd/command.c (reader_disabled): Remove.
(get_current_reader): Follow the change of R_NO_SERVICE.
(open_card, cmd_serialno, scd_command_handler): Remove reader_disabled
support.
* scd/sc-copykeys.c (main): Follow the change of R_NO_SERVICE.
--
Daemon should handle all possible cases.  Even if such a difficult
case like reader_disabled, it should not exit.
2012-12-04 10:48:20 +01:00
NIIBE Yutaka
baf7b09e12 Don't keep opening unavailable card reader.
* scd/command.c (update_reader_status_file): Don't call
get_current_reader.

--
This fix has a impact that the insertion of a card reader will not be
detected upon the insertion, but will be deferred until user tries to
access his card.
2012-12-04 10:48:20 +01:00
Werner Koch
905b6a36d3 Allow decryption with card keys > 3072 bits
* scd/command.c (MAXLEN_SETDATA): New.
(cmd_setdata): Add option --append.
* agent/call-scd.c (agent_card_pkdecrypt): Use new option for long
data.

* scd/app-openpgp.c (struct app_local_s): Add field manufacturer.
(app_select_openpgp): Store manufacturer.
(do_decipher): Print a note for broken cards.

--

Please note that I was not able to run a full test because I only have
broken cards (S/N < 346) available.
2012-11-06 14:48:06 +01:00
NIIBE Yutaka
8df89f3e9c SCD: Upon error, open_pcsc_reader_wrapped does same as _direct.
* scd/apdu.c (PCSC_E_NO_SERVICE): New.
(open_pcsc_reader_direct): Use PCSC_E_NO_SERVICE.
(open_pcsc_reader_wrapped): Set pcsc_no_service.
2012-10-31 11:05:55 +09:00
David Prévot
94e663885b Actually show translators comments in PO files
--
2012-08-24 09:42:31 +02:00
Werner Koch
8156a38674 Fix left over use of jnlib on some platforms
* tools/watchgnupg.c: Take mischelp.h from common/ and not jnlib/.

--

Also fixed in some comments.
2012-08-24 09:29:56 +02:00
NIIBE Yutaka
ca8eec8e28 scd: handle reader/token removal.
* scd/apdu.c (pcsc_error_to_sw): PCSC_E_UNKNOWN_READER means
SW_HOST_NO_READER.
2012-06-25 10:48:11 +09:00
Werner Koch
096e7457ec Change all quotes in strings and comments to the new GNU standard.
The asymmetric quotes used by GNU in the past (`...') don't render
nicely on modern systems.  We now use two \x27 characters ('...').

The proper solution would be to use the correct Unicode symmetric
quotes here.  However this has the disadvantage that the system
requires Unicode support.  We don't want that today.  If Unicode is
available a generated po file can be used to output proper quotes.  A
simple sed script like the one used for en@quote is sufficient to
change them.

The changes have been done by applying

  sed -i "s/\`\([^'\`]*\)'/'\1'/g"

to most files and fixing obvious problems by hand.  The msgid strings in
the po files were fixed with a similar command.
2012-06-05 19:29:22 +02:00
Ben Kibbey
bee0ac28c9 Fix killing PID -1.
When the KILLSCD command had been sent a race condition would occur
causing PID -1 getting killed, which on Linux seems to terminate all
applications for the current user.
2012-04-10 09:02:18 +02:00
Werner Koch
de01c51ecb Print warning for arguments not considered an option.
GnuPG requires that options are given before other arguments.  This
can sometimes be confusing.  We now print a warning if we found an
argument looking alike a long option without being preceded by the
stop option.  This is bug#1343.

* common/argparse.h (ARGPARSE_FLAG_STOP_SEEN): New.
* common/argparse.c (arg_parse): Set new flag.
* g10/gpg.c (main): Print the warning.
* agent/gpg-agent.c (main): Ditto.
* dirmngr/dirmngr.c (main): Ditto.
* g13/g13.c (main): Ditto.
* scd/scdaemon.c (main): Ditto.
* sm/gpgsm.c (main): Ditto.
* tools/gpg-connect-agent.c (main): Ditto.
* tools/gpgconf.c (main): Ditto.
2012-03-27 12:38:49 +02:00
Werner Koch
12ea5c904c Use new status printing functions.
* agent/command.c (cmd_geteventcounter): Get rid of static buffers.
* scd/command.c (cmd_serialno, cmd_learn): Simplify by using
print_assuan_status.
2012-02-07 13:52:31 +01:00
Werner Koch
eb0faef81d common: Add a global variable to for the default error source.
For the shared code parts it is cumbersome to pass an error sourse
variable to each function.  Its value is always a constant for a given
binary and thus a global variable makes things a lot easier than the
former macro stuff.
* common/init.c (default_errsource): New global var.
(init_common_subsystems): Rename to _init_common_subsystems.  Set
DEFAULT_ERRSOURCE.
* common/init.h: Assert value of GPG_ERR_SOURCE_DEFAULT.
(init_common_subsystems): New macro.
* common/util.h (default_errsource): Add declaration.
* kbx/keybox-defs.h: Add some GPG_ERR_SOURCE_DEFAULT trickery.
2012-02-06 20:50:47 +01:00
Marcus Brinkmann
ccbb4c3652 Port Windows code to NPTH.
* agent/gpg-agent.c (get_agent_ssh_socket_name): Use
INVALID_HANDLE_VALUE instead of 0.
(handle_signal) [!HAVE_W32_SYSTEM]: Don't define.
(handle_connections): Port Windows code to NPTH.
* dirmngr/dirmngr.c (handle_connections): Port Windows code to NPTH.
* g13/g13.c (handle_connections): Port Windows code to NPTH.
* scd/scdaemon.c (handle_connections): Port Windows code to NPTH.
2012-01-25 14:50:47 +01:00
Marcus Brinkmann
7a7a597827 Port to npth.
* configure.ac: Don't check for PTH but for NPTH.
(AH_BOTTOM): Remove PTH_SYSCALL_SOFT.
(have_pth): Rename to ...
(have_npth): ... this.
(USE_GNU_NPTH): Rename to ...
(USE_GNU_PTH): ... this.
* m4/npth.m4: New file.
* agent/Makefile.am, agent/cache.c, agent/call-pinentry.c,
agent/call-scd.c, agent/findkey.c, agent/gpg-agent.c,
agent/trustlist.c, common/Makefile.am, common/estream.c,
common/exechelp-posix.c, common/exechelp-w32.c,
common/exechelp-w32ce.c, common/http.c, common/init.c,
common/sysutils.c, dirmngr/Makefile.am, dirmngr/crlfetch.c,
dirmngr/dirmngr.c, dirmngr/dirmngr_ldap.c, dirmngr/ldap-wrapper-ce.c,
dirmngr/ldap-wrapper.c, dirmngr/ldap.c, g13/Makefile.am,
g13/call-gpg.c, g13/g13.c, g13/runner.c, scd/Makefile.am,
scd/apdu.c, scd/app.c, scd/ccid-driver.c, scd/command.c,
scd/scdaemon.c, tools/Makefile.am: Port to npth.
2012-01-25 14:50:47 +01:00
NIIBE Yutaka
5988c8bfb7 Merge ccid_driver_improvement branch.
* scd/apdu.c (ccid_keypad_operation): Rename from ccid_keypad_verify.
(open_ccid_reader): Use ccid_keypad_operation for verify and modify.

* scd/ccid-driver.c (VENDOR_VASCO, VASCO_920): New.
(ccid_transceive_apdu_level): Permit sending packet where
apdulen <= 289.  Support receiving packets in a chain.
(ccid_transceive_secure): Maximum is 15 for VASCO DIGIPASS 920.
Support keypad_modify method such as CHANGE_REFERENCE_DATA: 0x24.
2012-01-06 13:50:21 +09:00
Marcus Brinkmann
0dce26778e Fix compiler warnings.
* common/dotlock.c (use_hardlinks_p, dotlock_take_unix): Check return
value of link().
* g13/g13.c: Make sure err is initialized.
* scd/scdaemon.c (main) [!USE_GCRY_THREAD_CBS]: Do not define ERR.
2012-01-03 17:08:01 +01:00
Werner Koch
d01d9ff11f Terminate csh commands with a semicolon.
Fixes bug#1386.

* agent/gpg-agent.c (main): Terminate csh style output with a semicolon.
* scd/scdaemon.c: Ditto.
2012-01-03 11:13:30 +01:00
Marcus Brinkmann
a2d9e48fcc Only set gcrypt thread callback for older version of gcrypt.
* agent/gpg-agent.c, dirmngr/dirmngr.c, g13/g13.c, scd/scdaemon.c
(USE_GCRY_THREAD_CBS): New macro, defined if
GCRY_THREAD_OPTION_VERSION is 0.
(fixed_gcry_pth_init) [!USE_GCRY_THREAD_CBS]: Don't define.
(main) [!USE_GCRY_THREAD_CBS]: Do not install thread callbacks.
2012-01-02 22:15:00 +01:00
Werner Koch
366512abe4 Require Libassuan 2.0.3
* configure.ac: Require Libassuan 2.0.3.
* agent/call-scd.c (ASSUAN_CONVEY_COMMENTS): Remove macro replacement.
* agent/command.c (cmd_killagent) [ASSUAN_FORCE_CLOSE]: Remove
dependency.
(cmd_killagent) [ASSUAN_FORCE_CLOSE]: Ditto.
* scd/command.c (cmd_killscd) [ASSUAN_FORCE_CLOSE]: Ditto.
2011-12-20 11:12:21 +01:00
NIIBE Yutaka
07f20f313a Add error log and debug log for pcsc_keypad_verify and pcsc_keypad_modify.
* scd/apdu.c (pcsc_keypad_verify): Add debug log and error log.
(pcsc_keypad_modify): Likewise.
2011-12-20 13:34:27 +09:00
Werner Koch
f4b7f71463 scd: Fix for card change returning GPG_ERR_CARD_RESET.
* scd/apdu.c (apdu_connect): Do not test for zero atrlen.
--
When gpg-agent prompts for insertion of a card this error would be
returned.

Co-authored-by: Ben Kibbey <bjk@luxsci.net>
2011-12-19 18:26:47 +01:00
Werner Koch
27089564b6 scd: Prefer application Geldkarte over DINSIG.
* scd/app.c (select_application): Reorder application tests.
--

Although the DINSIG application is available on most German cards, it
is in reality not used.  Thus showing the Geldkarte application is
more desirable for a good user experience.
2011-12-15 21:45:35 +01:00
Werner Koch
b22d62bd14 scd: Add option --dump-atr to command APDU.
* scd/atr.c: Rewrite.
* scd/Makefile.am (scdaemon_SOURCES): Add atr.c and atr.h.
* scd/command.c (cmd_apdu): Add option --dump-atr.
2011-12-15 15:21:02 +01:00
Werner Koch
792e137ec7 scd: Skip S/N reading for the "undefined" application.
* scd/app.c (select_application): Skip serial number reading.
2011-12-14 18:56:10 +01:00
Werner Koch
0bac31ee9f scd: Add more status word values for documentation. 2011-12-14 18:48:47 +01:00
Werner Koch
dcd64131c6 scd: Add the "undefined" stub application.
* scd/app.c (select_application): Implement the "undefined"
application.
2011-12-14 17:00:50 +01:00
Werner Koch
2d91febbd8 scd: Fix resetting and closing of the reader.
* scd/command.c (update_card_removed): Do no act on an invalid VRDR.
(do_reset): Ignore apdu_reset error codes for no and inactive card.
Close the reader before setting the slot to -1.
(update_reader_status_file): Notify the application before closing the
reader.
--

With this change the scd now works as it did in the past.  In
particular there is no more endless loop trying to open the reader by
the update_reader_status_file ticker function.  That bug basically
blocked all card operations until the scdaemon was killed.
2011-12-14 10:30:31 +01:00
Werner Koch
07ea8c56b5 scd: Add debug option for reader function calls.
* scd/scdaemon.h (DBG_READER_VALUE, DBG_READER): New.
* scd/apdu.c (apdu_open_reader, apdu_close_reader)
(apdu_shutdown_reader, apdu_connect, apdu_disconnect)
(apdu_reset, apdu_get_atr, apdu_get_status): Add debug code.
(apdu_activate): Remove this unused function.
2011-12-14 10:21:15 +01:00
Werner Koch
00c760f628 scd: New option --debug-assuan-log-cats.
* scd/scdaemon.c (oDebugAssuanLogCats): New.
(opts): Add option --debug-assuan-log-cats.
(main): Implement option.
* common/asshelp.c (set_libassuan_log_cats): New.

--

The old way of setting the logging categories with an environment
variable is awkward if sdaemon is spawned from a running gpg-agent.
2011-12-13 17:59:00 +01:00
Werner Koch
24e121ef26 scd: Introduce a virtual reader table.
The vreader table makes the code more clear by explicitly talking
about APDU slots and reader indices.  It also accommodates for future
extensions.

* scd/scdaemon.h (server_control_s): Remove READER_SLOT.
* scd/scdaemon.c (scd_init_default_ctrl): Do not init READER_SLOT.
* scd/app.c (check_application_conflict): Add arg SLOT.
* scd/command.c (slot_status_s): Rename to vreader_s.
(server_local_s): Add field VREADER_IDX as replacement for
the READER_SLOT in server_control_s.  Change all users.
(slot_table): Rename to vreader_table.  Change all users.
(vreader_slot): New.
(do_reset, cmd_apdu): Map vreader to apdu slot.
(get_reader_slot): Rename to get_current_reader.  Return -1 on error.
(open_card): Map vreader toapdu slot.  Pass slot to
check_application_conflict.
(scd_command_handler): Init VREADER_IDX.
(update_reader_status_file): Reset SLOT field on error.
2011-12-13 16:55:42 +01:00
Werner Koch
1116466278 scd: Retry command SERIALNO for an inactive card.
* scd/command.c (cmd_serialno): Retry once for an inactive card.
2011-12-12 21:02:54 +01:00
Werner Koch
cd29dc0f1c Fix detection of card removal and insertion.
* scd/apdu.c (apdu_connect): Return status codes for no card available
and inactive card.
* scd/command.c (TEST_CARD_REMOVAL): Also test for GPG_ERR_CARD_RESET.
(open_card): Map apdu_connect status to GPG_ERR_CARD_RESET.
2011-12-12 20:34:12 +01:00
Werner Koch
239659d3a0 Support the Cherry ST-2000 card reader.
* scd/ccid-driver.c (SCM_SCR331, SCM_SCR331DI, SCM_SCR335)
(SCM_SCR3320, SCM_SPR532, CHERRY_ST2000): New constants.
(parse_ccid_descriptor): Use them.
(scan_or_find_usb_device, ccid_transceive_secure): Handle Cherry
ST-2000.  Suggested by Matthias-Christian Ott.
2011-12-02 18:09:58 +01:00
NIIBE Yutaka
bf37c32367 Fix pinpad input support for passphrase modification.
* apdu.c (pcsc_keypad_verify): Have dummy Lc field with value 0.
(pcsc_keypad_modify): Likewise.
(pcsc_keypad_modify): It's only for ISO7816_CHANGE_REFERENCE_DATA.
bConfirmPIN value is determined by the parameter p0.

* app-openpgp.c (do_change_pin): The flag use_keypad should be 0 when
reset_mode is on, or resetcode is on.  use_keypad only makes sense for
iso7816_change_reference_data_kp.

* iso7816.h (iso7816_put_data_kp): Remove.
(iso7816_reset_retry_counter_kp): Remove.
(iso7816_reset_retry_counter_with_rc_kp): Remove.
(iso7816_change_reference_data_kp): Add an argument: IS_EXCHANGE.

* iso7816.c (iso7816_put_data_kp): Remove.
(iso7816_reset_retry_counter_kp): Remove.
(iso7816_reset_retry_counter_with_rc_kp): Remove.
(iso7816_change_reference_data_kp): Add an argument: IS_EXCHANGE.
2011-12-02 13:57:12 +09:00
Werner Koch
2336b09779 Generate the ChangeLog from commit logs.
* scripts/gitlog-to-changelog: New script.  Taken from gnulib.
* scripts/git-log-fix: New file.
* scripts/git-log-footer: New file.
* doc/HACKING: Describe the ChangeLog policy
* ChangeLog: New file.
* Makefile.am (EXTRA_DIST): Add new files.
(gen-ChangeLog): New.
(dist-hook): Run gen-ChangeLog.

Rename all ChangeLog files to ChangeLog-2011.
2011-12-01 11:09:02 +01:00
NIIBE Yutaka
2c5d021912 Fix pinpad input support 2011-12-01 11:09:51 +09:00
NIIBE Yutaka
5a62b0d6ee PC/SC pinpad support (pinpad input for modify pass phrase with resetcode, by admin). 2011-11-29 17:56:22 +09:00
NIIBE Yutaka
57d4f7fae1 PC/SC pinpad support (pinpad input for modify pass phrase). 2011-11-29 11:59:32 +09:00
NIIBE Yutaka
26b4a012e3 PC/SC pinpad support.
Before this change, it is layered like following:

	iso7816_verify
        iso7816_verify_kp
	apdu_send_simple, apdu_send_simple_kp
	...

After this change, it will be layered like:

	iso7816_verify      iso7816_verify_kp
        apdu_send_simple    apdu_keypad_verify
	...

and apdu_send_simple_kp will be deprecated.

For PC/SC API, we use:
  SCardControl API to compose CCID PC_to_RDR_Secure message
  SCardTransmit API to compose CCID PC_to_RDR_XfrBlock message

Considering the support of PC/SC, we have nothing to share between _kp
version of iso7816_* and no _kp version.
2011-11-28 16:16:38 +09:00
Werner Koch
816bee1fa0 Fixed set but unused variable bugs 2011-08-10 14:11:30 +02:00
Werner Koch
81389383a3 Made the KILLAGENT and KILLSCD commands working again.
This requires that GnuPG is build with a newer version of Libassuan
(2.0.3).
2011-08-10 11:47:04 +02:00
Werner Koch
14e0b60efd Adjust for signed integer passed to OpenPGP card decrypt. 2011-08-08 10:44:03 +02:00
Werner Koch
37228cfa05 Allow generation of card keys up to 4096 bit.
This patch implementes a chunk mode to pass the key parameters from
scdaemon to gpg.  This allows to pass arbitrary long key paremeters;
it is used for keys larger than 3072 bit.

Note: the card key generation in gpg is currently broken.  The keys
are generated but it is not possible to create the self-signature
because at that time the gpg-agent does not yet know about the new
keys and thus can't divert the sign request to the card.  We either
need to run the learn command right after calling agent_scd_genkey or
implement a way to sign using the currently inserted card.  Another
option would be to get rid of agent_scd_genkey and implement the
feature directly in agent_genkey.
2011-06-16 14:27:33 +02:00
NIIBE Yutaka
682da55aa9 fix wLangId in ccid-driver.c
This is not a part of pin pad support series of mine.

As I found the bug while I am preparing the patches, I report this.

As CCID protocol is little endian, wLangId of US English = 0x0409
is represented as two bytes of 0x09 then 0x04.

It is really confusing that the code like following is floating
around:
	pin_verify -> wLangId = HOST_TO_CCID_16(0x0904);

But, it is 0x0409 (not 0x0904).  It is defined in the documentation:

    http://www.usb.org/developers/docs/USB_LANGIDs.pdf

and origin of this table is Microsoft.  We can see it at:

    http://msdn.microsoft.com/en-us/library/bb165625%28VS.80%29.aspx

Yes, it would be better not to hard-code 0x0409.  It would be better
to try current locale of the user, or to use the first entry of string
descriptor.  I don't have time to implement such a thing...
2011-03-02 16:52:27 +01:00