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Commit Graph

431 Commits

Author SHA1 Message Date
Werner Koch
ef0a3abf73
scd: Fix possible NULL deref in apdu.c
* scd/apdu.c (control_pcsc_direct): Take care of BUFLEN being NULL.
(control_pcsc_wrapped): Ditto.
--

pcsc_vendor_specific_init calls the above with BUFFER and BUFLEN as
NULL.

Reported by Stack 0.3:

  bug: anti-dce
  model: |
    control_pcsc.exit77:
    %retval.0.i.i76 = phi i32 [ %rc.0.i.i.i73, \
            %pcsc_error_to_sw.exit.i.i74 ], [ 0, %if.end.i.i75 ]
    %tobool198 = icmp ne i32 %retval.0.i.i76, 0, !dbg !728
    br i1 %tobool198, label %if.then199, label %if.end200, !dbg !728
  stack:
    - /home/wk/s/gnupg/scd/apdu.c:1882:0
  ncore: 1
  core:
    - /home/wk/s/gnupg/scd/apdu.c:1309:0
      - buffer overflow
2015-03-15 12:15:55 +01:00
NIIBE Yutaka
bb5a1b7c73 scd: fix for 64-bit arch.
* agent/pksign.c (agent_pksign_do): Use int.
* scd/app-openpgp.c (get_public_key): Likewise.

--

On 64-bit architecture, int and size_t might be different.
For the first argument for '%b', int is expected.
2015-03-09 11:00:03 +09:00
Werner Koch
07a71da479 scd: Fix regression in 2.1.2 (due to commit 2183683)
* scd/apdu.c (pcsc_vendor_specific_init): Replace use of
bufNN_to_uint by direct code.
--

Hey, that was little endian.
2015-02-12 20:40:39 +01:00
Werner Koch
2183683bd6 Use inline functions to convert buffer data to scalars.
* common/host2net.h (buf16_to_ulong, buf16_to_uint): New.
(buf16_to_ushort, buf16_to_u16): New.
(buf32_to_size_t, buf32_to_ulong, buf32_to_uint, buf32_to_u32): New.
--

Commit 91b826a388 was not enough to
avoid all sign extension on shift problems.  Hanno Böck found a case
with an invalid read due to this problem.  To fix that once and for
all almost all uses of "<< 24" and "<< 8" are changed by this patch to
use an inline function from host2net.h.

Signed-off-by: Werner Koch <wk@gnupg.org>
2015-02-11 10:28:25 +01:00
Werner Koch
0c2bfd9d5a Add a hook to be called right after main.
* common/init.c (early_system_init): New stub function.

Signed-off-by: Werner Koch <wk@gnupg.org>
2015-01-28 19:57:22 +01:00
NIIBE Yutaka
f6d3c6e526 scd: Fix varargs call for 64-bit arch on ECC keys.
* scd/app-openpgp.c (store_fpr): Remove CARD_VERSION from the
arguments.
(rsa_writekey): Follow the change.
(do_genkey): Likewise.
(ecc_writekey): Likewise.  Cast to size_t.

--

KEYTOCARD caused SEGV of scdaemon on 64-bit arch.  That's because
int is 32-bit, but size_t is 64-bit.
2015-01-28 11:24:29 +09:00
Joshua Rogers
274d7b17a9 ccid: Remove incorrect expression leading to errors.
* scd/ccid-driver.c (send_escape_cmd): Fix setting of 'rc'.
--

Variable 'rc' in send_escape_cmd was overwritten before it was
returned, leading to incorrect computation.

Signed-off-by: Joshua Rogers <git@internot.info>

[Log entry reformatted - wk]

(cherry picked from commit 3d9f8bf1dc)
2015-01-25 10:43:52 +01:00
Andreas Schwier
16a1330fa1 scd: Allow for certificates > 1024 with PC/SC.
* scd/pcsc-wrapper.c (handle_transmit): Enlarge buffer to 4096 too
allow for larger certificates.

--

Cherry-pick from 5798673156.
Forward ported from 2.0.
2015-01-13 12:23:23 +09:00
Joshua Rogers
100b322f5d scd: fix get_public_key for OpenPGPcard v1.0.
* scd/app-openpgp.c (get_public_key): correctly close 'fp' upon use.

--

Inside the get_public_key function, 'fp' was opened using popen, but
incorrectly closed using fclose.

Debian-Bug-Id: 773474
2015-01-08 11:12:42 +09:00
NIIBE Yutaka
602f17b5a7 scd: fix merge failure.
* scd/apdu.c (pcsc_pinpad_verify): Remove wrong lines inserted by
merge.

--

Thanks to Joshua Rogers for reviewing and reporting.
2015-01-07 08:15:12 +09:00
Daniel Kahn Gillmor
b0b3803e8c scd: Avoid double-free on error condition in scd
* scd/command.c (cmd_readkey): avoid double-free of cert

--

When ksba_cert_new() fails, cert will be double-freed.

Debian-Bug-Id: 773471

Original patch changed by wk to do the free only at leave.
2014-12-22 13:17:50 +01:00
NIIBE Yutaka
bdc8efbdd1 scd: ECDH Support.
* agent/divert-scd.c (divert_pkdecrypt): Support ECDH.
* scd/app-openpgp.c (get_algo_byte, store_fpr): Support ECDH.
(send_key_attr): Support ECDH.  Fix EdDSA algorithm value.
(retrieve_key_material): Initialize fields.
(get_public_key, ecc_writekey, do_writekey): Support ECDH.
(ecdh_writekey): Remove.
(do_decipher): Support ECDH.
(parse_algorithm_attribute): Support ECDH.  Fix EdDSA.

--

Following the gpg-agent protocol, SCDaemon's counter part is now
implemented.
2014-12-22 09:27:00 +09:00
Werner Koch
dd65e21cb4 gpg: Add sub-command "factory-reset" to --card-edit.
* common/util.h (GPG_ERR_OBJ_TERM_STATE): New.
* scd/iso7816.c (map_sw): Add this error code.
* scd/app-openpgp.c (do_getattr): Return the life cycle indicator.
* scd/app.c (select_application): Allow a return value of
GPG_ERR_OBJ_TERM_STATE.
* scd/scdaemon.c (set_debug): Print the DBG_READER value.
* g10/call-agent.c (start_agent): Print a status line for the
termination state.
(agent_scd_learn): Make arg "info" optional.
(agent_scd_apdu): New.
* g10/card-util.c (send_apdu): New.
(factory_reset): New.
(card_edit): Add command factory-reset.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-12-15 17:38:40 +01:00
Werner Koch
68b4e7c9e4 scd: Fix possibly inhibited checkpin of the admin pin.
* scd/app-openpgp.c (do_check_pin): Do not check a byte of a released
buffer.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-12-12 20:11:36 +01:00
NIIBE Yutaka
c50c11d575 scd: Fix for EdDSA.
* scd/app-openpgp.c (get_algo_byte): It catches 22.
(store_fpr): It's MPI usually, but it's opaque bytes for EdDSA.
2014-12-08 10:21:55 +09:00
NIIBE Yutaka
8720125f5a scd: Fix for NIST P-256.
* g10/card-util.c (card_store_subkey): Error check.
* scd/app-opengpg.c (ecc_writekey): Support NIST P-256.
(do_writekey): Error check.
2014-12-05 14:20:50 +09:00
Werner Koch
2f90b7c21b scd: Implement socket redirection.
* scd/scdaemon.c (ENAMETOOLONG): New.
(redir_socket_name): New.
(cleanup): Take care of a redirected socket.
(main): Pass redir_socket_name to create_server_socket.
(create_socket_name): Remove superfluous length check.
(create_server_socket): Add arg r_redir_name and implement
redirection.  Replace assert for older Assuan by an error message.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-12-01 10:45:06 +01:00
Werner Koch
1adf719b2d Remove use of gnulib (part 1)
* gl/: Remove entire tree.
* configure.ac: Remove gnulib tests and the gl/ Makefile.
(setenv): Add to AC_CHECK_FUNCS.
* autogen.rc (extra_aclocal_flags): Set to empty.
* Makefile.am (ACLOCAL_AMFLAGS): Remove -I gl/m4
(SUBDIRS): Remove gl/.
* agent/Makefile.am (common_libs): Remove ../gl/gnulib.a
* common/Makefile.am (t_common_ldadd): Ditto.
* dirmngr/Makefile.am (dirmngr_LDADD): Ditto.
(dirmngr_ldap_LDADD, dirmngr_client_LDADD): Ditto.
* g10/Makefile.am (needed_libs): Ditto.
* g13/Makefile.am (g13_LDADD): Ditto.
* kbx/Makefile.am (kbxutil_LDADD): Ditto.
($(PROGRAMS)): Ditto.
* scd/Makefile.am (scdaemon_LDADD): Ditto.
* sm/Makefile.am (common_libs): Ditto.
* tools/Makefile.am (common_libs, commonpth_libs): Ditto.

* agent/gpg-agent.c: Remove "mkdtemp.h"
* g10/exec.c: Ditto.
* scd/scdaemon.c: Ditto.
* tools/symcryptrun.c: Ditto.
* common/sysutils.c: Remove "setenv.h"

* common/t-timestuff.c: Use putenv if setenv is not available.
--

gnulib has always been a cause of trouble in GnuPG because we used
only a very few functions and the complex include machinery of gnulib
is quite complex and the cause for many build problems for example on
OS X.  This is not gnulib's fault but due to our limited use of gnulib
and that we only rarely update the gnulib code to avoid regressions.

In part two we will address the functions

 mkdtemp
 setenv
 unsetenv
 strpbrk

which may bot be implemented on all platforms.  They are not required
on a libc based system.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-11-11 10:13:10 +01:00
Werner Koch
cf41763cdf Change a couple of files to use abbreviated copyright notes.
--

Also fixed some of my own copyright notices due to the termination of
my assignment.  The one displayed by --version is kept at FSF because
we had contributors in 2014 with FSF assignments and it gives the FSF
some visibility.
2014-11-04 16:28:03 +01:00
Werner Koch
54ffe2045a Use a unique capitalization for "Note:".
--
2014-10-10 15:29:42 +02:00
Werner Koch
9c380384da Remove support for the GPG_AGENT_INFO envvar.
* agent/agent.h (opt): Remove field use_standard_socket.
* agent/command.c (cmd_killagent): Always allow killing.
* agent/gpg-agent.c (main): Turn --{no,}use-standard-socket and
--write-env-file into dummy options.  Always return true for
--use-standard-socket-p. Do not print the GPG_AGENT_INFO envvar
setting or set that envvar.
(create_socket_name): Simplify by removing non standard socket
support.
(check_for_running_agent): Ditto.
* common/asshelp.c (start_new_gpg_agent): Remove GPG_AGENT_INFO use.
* common/simple-pwquery.c (agent_open): Ditto.
* configure.ac (GPG_AGENT_INFO_NAME): Remove.
* g10/server.c (gpg_server): Do not print the AgentInfo comment.
* g13/server.c (g13_server): Ditto.
* sm/server.c (gpgsm_server): Ditto.
* tools/gpgconf.c (main): Simplify by removing non standard socket
support.
--

The indented fix to allow using a different socket than the one in the
gnupg home directory is to change Libassuan to check whether the
socket files exists as a regualr file with a special keyword to
redirect to another socket file name.
2014-10-03 11:58:58 +02:00
Werner Koch
b17e8bbf20 scd: Fix int/short mismatch in format string of app-p15.c
* scd/app-p15.c (parse_certid): Use snprintf and cast value.
(send_certinfo): Ditto.
(send_keypairinfo): Ditto.
(do_getattr): Ditto.
2014-09-18 15:39:50 +02:00
Werner Koch
519305feb8 Switch to the libgpg-error provided estream.
* configure.ac (NEED_GPG_ERROR_VERSION): Reguire 1.14.
(GPGRT_ENABLE_ES_MACROS): Define.
(estream_INIT): Remove.
* m4/estream.m4: Remove.
* common/estream-printf.c, common/estream-printf.h: Remove.
* common/estream.c, common/estream.h: Remove.
* common/init.c (_init_common_subsystems): Call gpgrt initialization.
2014-08-26 17:47:54 +02:00
Werner Koch
a61b28df1f scd: Minor changes to app-sc-hsm.
* scd/app-sc-hsm.c: Re-indendet some parts and set some vars to NULL
after xfree for improbed robustness.
(read_ef_prkd): Replace serial operator by blocks for better
readability.
(apply_PKCS_padding): Rewrite for easier auditing.
(strip_PKCS15_padding): Ditto.  Add stricter check on SRCLEN.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-08-14 14:09:37 +02:00
Werner Koch
2e936915cf scd: Minor and editorial changes to app-sc-hsm.c
* scd/app-sc-hsm.c (select_and_read_binary): Use SW_ macro.
(parse_certid): Remove useless test.
(send_certinfo, send_keypairinfo): Shrink malloc to the needed size.
(do_getattr): Ditto.
(verify_pin): Use SW_ macro.
(do_decipher): Replace OFS variable and extend comment.
--

Code parts which have not been audited are marked with a warning
pragma.
2014-07-25 11:04:53 +02:00
Werner Koch
e49c851ff5 scd: Add a new status word code.
* scd/apdu.h (SW_REF_DATA_INV): New.
* scd/apdu.c (apdu_strerror): Add string.
2014-07-25 10:58:57 +02:00
Werner Koch
07b64eec14 scd: Comment typo fixes.
--
2014-07-25 10:56:51 +02:00
Andreas Schwier
8eb9224f32 scd: Support for SmartCard-HSM
* scd/app-sc-hsm.c: New.
* scd/app.c (select_application, get_supported_applications): Register
new app.

--
Add a read/only driver for scdaemon that provides access to keys and
certificates on a SmartCard-HSM (www.smartcard-hsm.com).

The driver supports RSA and ECC keys on SmartCard-HSM cards and
USB-Sticks.

The driver does not yet support the MicroSD edition.

--
ChangeLog and FSF copyright year fix by wk.
2014-07-25 09:43:29 +02:00
Werner Koch
bc6b452129 scd: Do not use the pcsc-wrapper.
* scd/apdu.c (NEED_PCSC_WRAPPER): Do not define.
* scd/Makefile.am (libexec_PROGRAMS): Remove gnupg-pcsc-wrapper
(gnupg_pcsc_wrapper_SOURCES): Remove.
(gnupg_pcsc_wrapper_LDADD): Remove.
(gnupg_pcsc_wrapper_CFLAGS): Remove.
2014-07-22 16:20:00 +02:00
NIIBE Yutaka
73ba75ad8b scd: Add pinpad support for REINER SCT cyberJack go
* scd/ccid-driver.h (VENDOR_REINER, CYBERJACK_GO): New.
* scd/ccid-driver.c (ccid_transceive_secure): Handle the case for
VENDOR_REINER. Original work was by Alina Friedrichsen (tiny change).

--
This is revised version which adapts changes of ccid-driver and was
later ported from branch-2.0 to master (2.1)
2014-06-27 10:07:28 +02:00
Werner Koch
24be0f24d3 scd: Support reader Gemalto IDBridge CT30
* scd/ccid-driver.h (GEMPC_CT30): New product id.
* scd/ccid-driver.c (parse_ccid_descriptor): Add quirk for that
reader.
--

GnuPG-bug-id: 1638
2014-06-27 09:42:03 +02:00
Werner Koch
cb2aeb4e11 Make more use of *_NAME macros.
* configure.ac (GPG_DISP_NAME, GPGSM_DISP_NAME): New.
(GPG_AGENT_DISP_NAME, SCDAEMON_DISP_NAME): New.
(DIRMNGR_DISP_NAME, G13_DISP_NAME): New.
(GPGCONF_DISP_NAME): New.
(SCDAEMON_SOCK_NAME): New.
* common/argparse.c (show_help): Map description string.
2014-05-08 10:28:23 +02:00
Werner Koch
6477e51919 Use "samethread" mode keyword for some es_fopenmem.
* dirmngr/ks-engine-hkp.c (armor_data): Add mode keyword.
* g10/call-dirmngr.c (ks_put_inq_cb): Ditto.
* scd/atr.c (atr_dump): Ditto.
2014-05-06 09:49:26 +02:00
Werner Koch
84289e85c7 common: Cleanup the use of USE_NPTH and HAVE_NPTH macros.
* configure.ac (HAVE_NPTH): New ac_define.
* common/estream.c: Use USE_NPTH instead of HAVE_NPTH.
* common/http.c: Ditto.  Replace remaining calls to pth by npth calls.
(connect_server): Remove useless _().
* common/exechelp-posix.c, common/exechelp-w32.c
* common/exechelp-w32ce.c: Use HAVE_PTH to include npth.h.
* common/init.c (_init_common_subsystems): Remove call to pth_init.
* common/sysutils.c (gnupg_sleep): Use npth_sleep.
* scd/ccid-driver.c (my_sleep): Ditto.
--

USE_NPTH is used in case were we may build with and without nPth.  The
missing definition HAVE_NPTH didn't allowed us to build outher sources
with nPTh support.
2014-05-02 08:22:38 +02:00
NIIBE Yutaka
3132bd90dc scd: EdDSA support.
* scd/app-openpgp.c (KEY_TYPE_EDDSA, CURVE_ED25519): New.
(struct app_local_s): Add eddsa.
(get_algo_byte, store_fpr): Support KEY_TYPE_EDDSA.
(get_ecc_key_parameters, get_curve_name): Support CURVE_ED25519.
(send_key_attr, get_public_key): Support KEY_TYPE_EDDSA.
(build_ecc_privkey_template): Rename as it supports both of
ECDSA and EdDSA.
(ecc_writekey): Rename.  Support CURVE_ED25519, too.
(do_writekey): Follow the change of ecc_writekey.
(do_auth): Support KEY_TYPE_EDDSA.
(parse_ecc_curve): Support CURVE_ED25519.  Bug fix for other curves.
(parse_algorithm_attribute): Bug fix for ECDH.  Support EdDSA.
2014-04-09 09:30:19 +09:00
Werner Koch
36dfc37e43 scd: Silent compiler warnings about unused variables.
* scd/app-openpgp.c (build_ecdsa_privkey_template): Mark unused arg.
(ecdh_writekey): Mark unused args.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-04-08 10:02:08 +02:00
NIIBE Yutaka
781b941743 scd: writekey support of ECC.
* scd/app-openpgp.c (CURVE_SEC_P256K1, get_algo_byte): New.
(store_fpr): Support ECC keys with varargs.
(get_ecc_key_parameters, get_curve_name): Support secp256k1.
(parse_ecc_curve): Likewise.
(build_ecdsa_privkey_template, rsa_writekey, ecdsa_writekey): New.
(ecdh_writekey): New.  Not implemented yet.
(do_writekey): Call rsa_writekey, ecdsa_writekey, or ecdh_writekey.
(do_genkey): Follow the change of store_fpr.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2014-03-12 17:25:33 +09:00
Werner Koch
9ab9f414fb scd: acquire lock in new_reader_slot.
* scd/apdu.c (new_reader_slot): Acquire lock.
(open_ct_reader, open_pcsc_reader_direct, open_pcsc_reader_wrapped)
(open_ccid_reader, open_rapdu_reader): Release lock.
(lock_slot, trylock_slot, unlock_slot): Move more to the top.

--
Fixes a test case of:
   No libpcsclite1 installed.
   Run gpg-agent
   Run command "gpg-connect-agent learn /bye" with no card/token
   Sometimes it fails: ERR 100663356 Not supported <SCD>
   While it should be always: ERR 100663404 Card error <SCD>

(cherry picked from commit 4f557cb9c2)

Resolved conflicts:
	scd/apdu.c: pth/npth changes. Move lock helpers to the top.
                    Take care of removed pcsc_no_service.
2014-03-10 16:07:46 +01:00
Werner Koch
094aa2589e w32: Silence warnings about unused vars.
* agent/gpg-agent.c (main) [W32]: Mark unused vars.
* sm/gpgsm.c (run_protect_tool) [W32]: Ditto.
* g10/trustdb.c (check_regexp) [DISABLE_REGEX]: Ditto.
* scd/scdaemon.c (main) [W32]: Ditto.
(handle_connections) [W32]: Ditto.
(handle_signal) [W32]: Do not build the function at all.
* scd/apdu.c (pcsc_send_apdu_direct): Ditto.
(connect_pcsc_card): s/long/pcsc_dword_t/.
(open_pcsc_reader_direct): Remove var listlen.
2014-03-07 16:11:15 +01:00
Werner Koch
4ad123d6fe Fix syntax error for building on APPLE.
* scd/pcsc-wrapper.c [__APPLE__]: Fix syntax error.
--

For W32 and probably for Cygwin we don't need the wrapper, thus the
problems does not exhibit itself.

(cherry picked from commit 8ddf604659)
2014-03-07 08:57:09 +01:00
Werner Koch
d2a6be24af Ignore obsolete option --disable-keypad.
* scd/scdaemon.c (opts): Ignore --disable-keypad.
--

The renaming of --disable-keypad to --disable-pinpad might mess up
configuration files managed with a GUI.  The GUI does not not anymore
know about the old option and would allow the user to switch
"disable-pinpad" on.  However, a "disable-keypad" might still linger
in the conf file with gpgconf not knowing about it.  Thus the conf
file would always be rejected and manual intervention would be
required.  Ignoring the old option nicely solves the problem.

(cherry picked from commit e24e92d7e2)
2014-03-07 08:53:11 +01:00
Werner Koch
cc9a0b69b6 Make use of the *_NAME etc macros.
Replace hardwired strings at many places with new macros from config.h
and use the new strusage macro replacement feature.

* common/asshelp.c (lock_spawning) [W32]: Change the names of the spawn
sentinels.
* agent/command.c (cmd_import_key): Use asprintf to create the prompt.
2013-11-18 14:09:47 +01:00
NIIBE Yutaka
abd922e79b scd: more pinpad input fix for PC/SC.
* scd/apdu.c (check_pcsc_pinpad): Set default values here.
(pcsc_pinpad_verify, pcsc_pinpad_modify): Remove setting default
values, as it's too late.

--

GnuPG-bug-id: 1549
2013-11-13 16:43:26 +09:00
NIIBE Yutaka
037dea9dd5 scd: more pinpad fix.
* scd/apdu.c (check_pcsc_pinpad): Set ->minlen and ->maxlen only when
those are specified.
(pcsc_pinpad_modify): Remove old check code.

--

GnuPG-bug-id: 1549
2013-11-11 16:41:43 +09:00
NIIBE Yutaka
32989ad2b1 scd: pinpad fix for PC/SC on Windows.
* scd/apdu.c (SCARD_CTL_CODE): Fix for Windows.
2013-10-29 09:07:05 +09:00
NIIBE Yutaka
de7e15c6b8 scd: fix pinpad input on Windows.
* scd/apdu.c (open_pcsc_reader_direct): Don't call
pcsc_vendor_specific_init here, but...
(connect_pcsc_card): Call it here.

--

Thanks to Martin Wolters for the bug report.
2013-10-25 09:57:31 +09:00
NIIBE Yutaka
5efcc2b8fe scd: add pinpad readers information for PC/SC service.
* scd/apdu.c (pcsc_vendor_specific_init): Add information for Cherry
ST-2xxx, Reiner cyberJack, Vasco DIGIPASS, FSIJ Gnuk Token, and KAAN
Advance.

--
2013-10-16 09:52:18 +09:00
NIIBE Yutaka
e0ab665a79 scd: remove pin length check.
* scd/apdu.c (pcsc_pinpad_verify): Remove old check code for pin
length.

--
GnuPG-bug-id: 1549
2013-10-15 10:44:51 +09:00
Werner Koch
244587ea41 scd: Suppress gcc warning about possible uninitialized use.
* scd/app-nks.c (parse_pwidstr): Always init r_pwid.

Signed-off-by: Werner Koch <wk@gnupg.org>
2013-08-30 10:28:26 +02:00
Werner Koch
fc31d730d8 scd: Use vendor and product id macros also in apdu.c
* scd/ccid-driver.c: Move vendor and product ids to ...
* scd/ccid-driver.h: here.
* scd/apdu.c (CCID_DRIVER_INCLUDE_USB_IDS): Define to include ids.
(pcsc_vendor_specific_init): Use vendor and product id macros.

Signed-off-by: Werner Koch <wk@gnupg.org>
2013-08-30 09:28:17 +02:00