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Commit Graph

980 Commits

Author SHA1 Message Date
Werner Koch
157030271f
Replace all calls to stat by gnupg_stat.
* common/sysutils.c (gnupg_stat): New.
* common/sysutils.h: Include sys/stat.h.
--

Yet another wrapper for Unicode support on Windows.

GnuPG-bug-id: 5098
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: 18e5dd7b03)
2020-10-23 11:15:59 +02:00
Werner Koch
86e52e3c33
Replace most calls to open by a new wrapper.
* common/sysutils.c (any8bitchar) [W32]: New.
(gnupg_open): New.  Replace most calls to open by this.
* common/iobuf.c (any8bitchar) [W32]: New.
(direct_open) [W32]: Use CreateFileW if needed.
--

This is yet another step for full Unicode support on Windows.

GnuPG-bug-id: 5098
(cherry picked from commit 4dcef0e178)
2020-10-23 10:02:25 +02:00
Werner Koch
d65ea29683
w32: Allow Unicode filenames for dotlock
* common/dotlock.c (any8bitchar) [W32]: New.
(dotlock_create_w32): Use strconcat and CreateFileW.

* common/t-dotlock.c: Source include dotlock.c and modify to allow
manual testing on Windows.
--

GnuPG-bug-id: 5098
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit b47c355b18)
2020-10-21 21:10:27 +02:00
Werner Koch
5c6e9b44cc
Replace most of the remaining stdio calls by estream calls.
--

We need to use es_fopen on Windows to cope with non-ascii file names.
This is quite a large but fortunately straightforward change.  At a
very few places we keep using stdio (for example due to the use of
popen).

GnuPG-bug-id: 5098
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: 390497ea11
2020-10-21 21:09:38 +02:00
Werner Koch
dd5fd4a760
Replace all calls to access by gnupg_access
* common/sysutils.c (gnupg_access): New.  Replace all calls to access
by this wrapper.
* common/homedir.c (w32_shgetfolderpath): Change to return UTF-8
directory name.
(standard_homedir): Adjust for change.
(w32_commondir, gnupg_cachedir): Ditto.
--

Also use SHGetFolderPathW instead of SHGetFolderPathA on Windows.

This is required to correctly handle non-ascii filenames on Windows.

GnuPG-bug-id: 5098
(cherry picked from commit c94ee1386e)
2020-10-21 20:49:18 +02:00
Werner Koch
e12e5b3dab
common,w32: Change copyright holder notice.
--
2020-10-02 16:38:18 +02:00
Werner Koch
239e60a37f
gpgconf,w32: Add manifest so we get the correct windows version.
* common/w32info-rc.h.in: Update copyright info.
* tools/gpg-connect-agent-w32info.rc: Tweak file info.
* tools/gpgconf-w32info.rc: New.
* tools/gpgconf.w32-manifest.in: New.
* configure.ac: Add new .in file.
* tools/Makefile.am (EXTRA_DIST): Add them.
(gpg_connect_agent_robjs, gpgconf_robjs): New.
(gpgconf_LDADD): Add resource file.
(gpg_connect_agent_LDADD): Change name of resource macro.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-10-02 14:24:04 +02:00
Werner Koch
7de9ed521e
agent: Keep some permissions of private-keys-v1.d.
* common/sysutils.c (modestr_to_mode): Re-implement.
(gnupg_chmod): Support keeping of permissions.
--

GnuPG-bug-id: 2312
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-09-10 07:46:25 +02:00
Werner Koch
364cef997c
common: Use gpgrt functions for mkdir and chdir if available
* common/sysutils.c (gnupg_mkdir): Divert to gpgrt_mkdir.
(gnupg_chdir): Divert to gpgrt_chdir
--

To avoid bumping up the build dependency on libgpg-error 1.28 we use
the gpgrt version only if at least this libgpg-error version was used
at build time.  This won't fix any bugs though and it is in general
advisable to use the latest libgpg-error.  There are actually a couple
of very useful bug fixes for Windows in the upcoming libgpg-error 1.39
but on Unix you can live without them.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-22 14:37:44 +02:00
Werner Koch
bef68efd8d
common,w32: Do not assume the ANSI codepage during string conversion.
* common/utf8conv.c (get_w32_codepage): New.
(wchar_to_native): Use instead oc CP_ACP.
(native_to_wchar): Ditto.
--

This should fix quite some issue; we fixed it when using the iconv
based machinery about 14 years ago.  At some point we introduced the
new conversion functions because Windows started to support UTF-8
natively.  The fix comes late but well, it is done.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-22 14:23:05 +02:00
Werner Koch
73b0fdabdb
common: Strip trailing CR,LF from w32_strerror.
* common/stringhelp.c (w32_strerror): Strip trailing CR,LF.
* common/iobuf.c (iobuf_get_filelength): Use -1 and not 0 for the
arg to w32_strerror.

--

This is in particular annoying since we started to use a string
argument sanitizer in the logging code.  Before that we just add an
extra blank line.

The second patch corrects a never yet seen error message.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-22 14:22:01 +02:00
Werner Koch
1efe99f3d9
gpgtar: Make --files-from and --null work as described.
* tools/gpgtar-create.c (gpgtar_create): Add args files_from and
null_names.  Improve reading from a file.
* tools/gpgtar.c: Make global vars static.
(main): Remove tests for --files-from and --null option combinations.
Pass option variables to gpgtar_create.
--

GnuPG-bug-id: 5027
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-20 15:53:06 +02:00
Werner Koch
829bc3bc60
build: New configure option --disable-tests
* configure.ac: Add option --disable-tests.  Print warnings in the
summary.
(DISABLE_TESTS): New am_conditional.
--
GnuPG-bug-id: 4960
2020-08-20 10:58:52 +02:00
Werner Koch
3cf920a1e3
common: Pass the WAYLAND_DISPLAY envvar along
* common/session-env.c (stdenvnames): Add WAYLAND_DISPLAY.
--
GnuPG-bug-id: 5016

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-08-12 09:28:20 +02:00
NIIBE Yutaka
8d9ce32c30 w32: More adding NETLIBS.
* common/Makefile.am (t_common_ldadd): Add $(NETLIBS).

--

Cherry-picked master commit of:
	5fa4427419

GnuPG-bug-id: 4994
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2020-07-30 15:11:11 +09:00
Werner Koch
c5ab1dcd54
gpgsm: Make rsaPSS a compliant scheme in de-vs mode.
--

GnuPG-bug-id: 4538
Signed-off-by: Werner Koch <wk@gnupg.org>
Backported-from-master: 5fe3cdfc76
2020-07-14 12:30:36 +02:00
Werner Koch
4a36adaa64
sm: Exclude rsaPSS from de-vs compliance mode.
* common/compliance.h (PK_ALGO_FLAG_RSAPSS): New.
* common/compliance.c (gnupg_pk_is_compliant): Add arg alog_flags and
test rsaPSS.  Adjust all callers.
* common/util.c (pubkey_algo_to_string): New.
(gnupg_pk_is_allowed): Ditto.
* sm/misc.c (gpgsm_ksba_cms_get_sig_val): New wrapper function.
(gpgsm_get_hash_algo_from_sigval): New.
* sm/certcheck.c (gpgsm_check_cms_signature): Change type of sigval
arg.  Add arg pkalgoflags.  Use the PK_ALGO_FLAG_RSAPSS.
* sm/verify.c (gpgsm_verify): Use the new wrapper and new fucntion to
also get the algo flags.  Pass algo flags along.  Change some of the
info output to be more like current master.
--
Signed-off-by: Werner Koch <wk@gnupg.org>

This backport from master
commit 969abcf40c
also includes some changes taken from
commit a759fa963a
(sm: Improve readability of the data verification output.)

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-07-03 17:08:58 +02:00
Werner Koch
381c54179c
common: Add missing error code GPG_ERR_WRONG_NAME.
* configure.ac: Require libgpg-error 1.25.
* common/util.h: Define some extra error codes.
--

This actually defines a few more error ocdes in case they are used by
backported code.  The requirement chnaged to 1.25 because erro codes
from there are also required.

GnuPG-bug-id: 4965
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-06-03 10:29:18 +02:00
Werner Koch
c6324ee07a
common: Change argument order of log_printhex.
* common/logging.c (log_printhex): Chnage order of args.  Make it
printf alike.  Change all callers.
* configure.ac: Add -Wno-format-zero-length
--

This makes it consistent with modern libgpgrt logging and thus eases
back porting from newer GnuPG versions which use libgpgrt logging.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-05-12 18:51:47 +02:00
Werner Koch
1dfe71c62b
gpg: Support decryption of the new AEAD packet
* common/openpgpdefs.h (aead_algo_t): New.
(pkttype_t): Add PKT_ENCRYPTED_AEAD.
* g10/decrypt-data.c (struct decode_filter_context_s): Add fields for
AEAD.
(aead_set_nonce_and_ad): New.
(aead_checktag): New.
(decrypt_data): Support AEAD.
(aead_underflow): New.
(aead_decode_filter): New.
* g10/dek.h (DEK): Add field use_aead.  Turn use_mdc,
algo_info_printed, and symmetric into bit flags.
* g10/mainproc.c (struct mainproc_context): Add field
seen_pkt_encrypted_aead.
(release_list): Clear it.
(have_seen_pkt_encrypted_aead): New.
(symkey_decrypt_seskey): Support AEAD.
(proc_symkey_enc): Ditto.
(proc_encrypted): Ditto.
(proc_plaintext): Ditto.
* g10/misc.c (MY_GCRY_CIPHER_MODE_EAX): New.
(openpgp_aead_test_algo): New.
(openpgp_aead_algo_name): New.
(openpgp_aead_algo_info): New.
* g10/packet.h (PKT_symkey_enc): Add field use_aead.
(PKT_user_id): Add field flags.aead
(PKT_public_key): Ditto.
(PKT_encrypted): Add fields for AEAD.
* g10/parse-packet.c (parse): Handle PKT_ENCRYPTED_AEAD.
(parse_symkeyenc): Support AEAD.
(parse_encrypted): Ditto.
(dump_sig_subpkt): Dump AEAD preference packet.
(parse_encrypted_aead): New.
--

This patch allows to decrypt data encrypted using the new AEAD
mechanism as specified in rfc4880bis.  Although preferences are used
to enable this new mode, it is useful to have at least a decryption
option in case a user switches between GnuPG 2.2 and newer versions.

The new AEAD mechanism is much faster than the current CFB+MDC and
thus 2.2 will allow faster decryption of symmetric only decryption.

This patch is based on the current master (2.3) code base and includes
a few other patches.  In particular
commit 44be675b75
(gpg: More check for symmetric key encryption.)
is included.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-16 08:25:55 +02:00
Werner Koch
4d37cc72b8
common: New function to map hash algo names.
* common/sexputil.c (hash_algo_to_string): New.
--

Libgcrypt expects lowercase names and it is cumbersome to downcase
those retrieved via gcry_md_algo_name.  It is easier and also faster
to use a dedicated map function.
2020-04-15 15:43:00 +02:00
Werner Koch
471b06e91b
scd:p15: Fix decrypt followed by sign problem for D-Trust cards.
* scd/iso7816.c (iso7816_select_mf): New.
* scd/app-p15.c (card_product_t): New.
(struct app_local_s): Add field 'card_product'.
(read_ef_tokeninfo): Detect D-Trust card.
(prepare_verify_pin): Switch to D-Trust AID.
(do_decipher): Restore a SE for D-TRust cards.  Change the padding
indicator to 0x81.

* common/percent.c (percent_data_escape): new.  Taken from master.
--

Using what I learned from a USB trace running the Governikus Signer
Software on Windows this fixes the left over problem with the new
D-Trust card support.

Signed-off-by: Werner Koch <wk@gnupg.org>

Backported from master.  This required to add the percent_data_escape
function we introduced in master on 2018-07-02:

    commit 58baf40af6
    common: New function percent_data_escape.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-15 15:31:56 +02:00
Werner Koch
e730444e7b
scd:p15: Support signing with CardOS 5 cards.
* scd/app-help.c (app_help_get_keygrip_string_pk): Add optional arg
r_pkey and change all callers.
(app_help_get_keygrip_string): Ditto.
* scd/app-p15.c (struct cdf_object_s): Use bit flags
(struct aodf_object_s): Ditto.  Add field 'fid'.
(struct prkdf_object_s): Ditto.  Add fields keygrip, keyalgo, and
keynbits.
(parse_certid): Allow a keygrip instead of a certid aka keyref.
(read_ef_aodf): Store the FID.
(keygripstr_from_prkdf): Rename to ...
(keygrip_from_prkdf): this.  Remove arg r_gripstr and implement cache.
Change callers to directly use the values from the object.  Also store
the algo and length of the key ion the object.
(keyref_from_keyinfo): New. Factored out code.
(do_sign): Support SHA-256 and >2048 bit RSA keys.
common/scd:p15: Support signing with CardOS 5 cards.
* common/util.h (KEYGRIP_LEN): New.
--

This has been tested with a D-Trust card featuring 3072 bit keys.
Note that non-repudiation key for a qualified signature does not yet
work because we do not yet support rsaPSS padding.  Thus a gpgsm
--learn shows a couple of Bad Signature errors for this key.

Signed-off-by: Werner Koch <wk@gnupg.org>

Back ported from master:
- Removed do_with_keygrip
- Added KEYGRIP_LEN
- app_help_get_keygrip_string_pk actually added.
- Move keygrip_from_prkdf in do_sign before the verification.
  It used to work in master only because there it is implictly
  called prior to signing by do_with_keygrip

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-01 16:00:31 +02:00
Werner Koch
1424c12e4c
sm: Consider certificates w/o CRL DP as valid.
* sm/certchain.c (is_cert_still_valid): Shortcut if tehre is no DP.
* common/audit.c (proc_type_verify): Print "n/a" if a cert has no
distribution point.
* sm/gpgsm.h (opt): Add field enable_issuer_based_crl_check.
* sm/gpgsm.c (oEnableIssuerBasedCRLCheck): New.
(opts): Add option --enable-issuer-based-crl-check.
(main): Set option.
--

If the issuer does not provide a DP and the user wants such an issuer,
we expect that a certificate does not need revocation checks.  The new
option --enable-issuer-based-crl-check can be used to revert to the
old behaviour which requires that a suitable LDAP server has been
configured to lookup a CRL by issuer.

Signed-off-by: Werner Koch <wk@gnupg.org>

(cherry picked from master)
2020-03-27 21:20:13 +01:00
Werner Koch
b27d30df62
Copyright notice updates et al.
--
2020-03-19 15:48:12 +01:00
Werner Koch
d79ebee64e
gpg: New option --include-key-block.
* common/openpgpdefs.h (SIGSUBPKT_KEY_BLOCK): New.
* g10/gpg.c (oIncludeKeyBlock): New.
(opts): New option --include-key-block.
(main): Implement.
* g10/options.h (opt): New flag include_key_block.
* g10/parse-packet.c (dump_sig_subpkt): Support SIGSUBPKT_KEY_BLOCK.
(parse_one_sig_subpkt): Ditto.
(can_handle_critical): Ditto.
* g10/sign.c (mk_sig_subpkt_key_block): New.
(write_signature_packets): Call it for data signatures.
--

This patch adds support for a to be proposed OpenPGP ferature:

  Introduce the Key Block subpacket to align OpenPGP with CMS.

  This new subpacket may be used similar to the CertificateSet of
  CMS (RFC-5652) and thus allows to start encrypted communication
  after having received a signed message.  In practice a stripped down
  version of the key should be including having only the key material
  and the self-signatures which are really useful and shall be used by
  the recipient to reply encrypted.

  #### Key Block

  (1 octet with value 0, N octets of key data)

  This subpacket MAY be used to convey key data along with a signature
  of class 0x00, 0x01, or 0x02.  It MUST contain the key used to create
  the signature; either as the primary key or as a subkey.  The key
  SHOULD contain a primary or subkey capable of encryption and the
  entire key must be a valid OpenPGP key including at least one User ID
  packet and the corresponding self-signatures.

  Implementations MUST ignore this subpacket if the first octet does not
  have a value of zero or if the key data does not represent a valid
  transferable public key.

GnuPG-bug-id: 4856
Signed-off-by: Werner Koch <wk@gnupg.org>

Backported from master.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-03-14 19:38:09 +01:00
Werner Koch
e952026e19
sm: Remove left over debug output.
--
2020-02-17 11:38:23 +01:00
Werner Koch
38f819bd6d
gpgsm: Fix import of some CR,LF ternminated certificates
* common/ksba-io-support.c (base64_reader_cb): Detect the END tag and
don't just rely on the padding chars.  This could happen only with
CR+LF termnmated PEM files.  Also move the detection into the invalid
character detection branch for a minor parser speedup.
--

GnuPG-bug-id: 4847
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 6248739799)
2020-02-15 19:21:35 +01:00
Werner Koch
21d9bd8b87
build: Always use EXTERN_UNLESS_MAIN_MODULE pattern.
* common/util.h (EXTERN_UNLESS_MAIN_MODULE): Add the definion only
here but now without the Norcroft-C.  Change all other places where it
gets defined.
* common/iobuf.h (iobuf_debug_mode): Declare unconditionally as
extern.
* common/iobuf.c (iobuf_debug_mode): Define it here.
* agent/gpg-agent.c (INCLUDED_BY_MAIN_MODULE): Define here and also in
all main modules of all other programs.

* g10/main.h: Put util.h before the local header files.
--

This change is required for use with gcc/ld's LTO feature which does
not allow common blocks.  Further gcc 10 will make -fno-common the
default and thus this chnage is always needed.  What a pitty.

Co-authored-by: Tomáš Mráz
GnuPG-bug-id: 4831
Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-10 16:37:34 +01:00
Werner Koch
47f514fde6
common: Also protect log_inc_errorcount against counter overflow.
* common/logging.c (log_inc_errorcount): Also protect against
overflow.
(log_error): Call log_inc_errorcount instead of directly bumping the
counter.
--

We already had an overflow checking for log_error but not for the
silent increment function.

This is basically the same fix we have in libgpg-error
(libgpg-error commit d72c1ddfde09ffa69745ec2439c5a16d15e2202f)

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-02-10 14:55:53 +01:00
Werner Koch
a265d3997a
gpgconf,w32: Print a warning for a suspicious homedir.
* tools/gpgconf.c (list_dirs): Check whether the homedir has been
taken from the registry.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 7f12fb55f9)
2020-01-17 14:28:13 +01:00
Werner Koch
0353cb0a5e
common: Extend function pubkey_algo_string.
* common/sexputil.c (pubkey_algo_string): Add arg R_ALGOID.
* sm/certreqgen-ui.c (gpgsm_gencertreq_tty): Adjust.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f952226043)

Removed the changes in gpg-card which is not part of 2.2

Signed-off-by: Werner Koch <wk@gnupg.org>
2019-08-21 10:23:05 +02:00
NIIBE Yutaka
6e6078c8d0 common: Fix line break handling, finding a space.
* common/name-value.c (assert_raw_value): Correctly find a space.

--

Cherry-pick master commit of:
	f588dd8d17

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-08-12 10:46:26 +09:00
Werner Koch
d9b31d3a20
gpg: Allow deletion of subkeys with --delete-[secret-]key.
* common/userids.c (classify_user_id): Do not set the EXACT flag in
the default case.
* g10/export.c (exact_subkey_match_p): Make static,
* g10/delkey.c (do_delete_key): Implement subkey only deleting.
--

GnuPG-bug-id: 4457
2019-05-27 11:41:35 +02:00
NIIBE Yutaka
ee766b2b5d common: Fix AWK portability.
* common/Makefile.am: Use pkg_namespace.
* common/mkstrtable.awk: Use pkg_namespace.  Regexp fix.

--

Cherry-picked from master commit:
	b6f0b0efa1

GnuPG-bug-Bug: 4459
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-04-16 13:27:44 +09:00
NIIBE Yutaka
6e422b5135 common: Fix gnupg_wait_processes.
* common/exechelp-posix.c (gnupg_wait_processes): Loop for r_exitcodes
even if we already see an error.

--

Cherry-picked master commit of:
	eeb3da6eb7

The value stored by waitpid for exit code is encoded;  It requires
decoded by WEXITSTATUS macro, regardless of an error.

For example, when one of processes is already exited and another is
still running, it resulted wrong value of in r_exitcodes[n].

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2019-02-19 15:49:55 +09:00
Werner Koch
7922e2dd1c
Release 2.2.13 2019-02-12 16:30:31 +01:00
Werner Koch
d29d73264f
common: Provide function to get public key algo names in our format.
* common/sexputil.c (pubkey_algo_string): New.
--

The new gpg format for public key algorithms is useful at other places
as well.  Thus we make this new function available.  Note that the
code we use in gpg is not based on s-expressions and thus a new
function was required.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 03bf8e967a)

Not yet used in 2.2 but will likely be needed by future backports.
2019-02-11 10:59:35 +01:00
Werner Koch
ee8d1a9e6c
common: New functions get_option_value and ascii_strupr.
* common/server-help.c (get_option_value): New.
* common/stringhelp.c (ascii_strupr): New.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit e2f18023b3)

This might come handy when we eventually backport other changes.
2019-02-11 10:59:34 +01:00
Werner Koch
b78f293cf0
common: Provide some convenient OpenPGP related constants.
* common/openpgpdefs.h (OPENPGP_MAX_NPKEY): New.
(OPENPGP_MAX_NSKEY): New.
(OPENPGP_MAX_NSIG): New.
(OPENPGP_MAX_NENC): New.
* g10/packet.h: Define PUBKEY_MAX using the new consts.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit f382984966)
2019-01-29 20:18:52 +01:00
Werner Koch
dddbb26155
common: New helper functions for OpenPGP curve OIDs.
* common/openpgp-oid.c (openpgp_oidbuf_to_str): Factor most code out
to ...
(openpgp_oidbuf_to_str): new.
(openpgp_oidbuf_is_ed25519): New.
(openpgp_oidbuf_is_cv25519): New.
--

At some places it is more convenient (and faster) to directly work on
buffers and avoid the way via opaque MPIs.  These 3 new functions
allow for that.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 4a1558d0c7)
2019-01-29 20:17:29 +01:00
Jussi Kivilinna
ebd434a45e
common/iobuf: fix memory wiping in iobuf_copy
* common/iobuf.c (iobuf_copy): Wipe used area of buffer instead of
first sizeof(char*) bytes.
--

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
(cherry picked from commit 654e353d9b)
2018-12-05 08:25:48 +01:00
Jussi Kivilinna
21fdef6963
common: Use platform memory zeroing function for wipememory
* common/mischelp.h (wipememory): Replace macro with function
prototype.
(wipememory2): Remove.
* common/mischelp.c (wipememory): New.
* configure.ac (AC_CHECK_FUNCS): Check for 'explicit_bzero' and
remove duplicated checks.
--

In new wipememory function, memory is cleared through platform
provided secure memory zeroing function, SecureZeroMemory
or explicit_bzero.

If none of these is available, memset is called through
volatile function pointer to so that compiler won't optimize
away the call.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
(cherry picked from commit 2a650772b4)
2018-12-05 08:23:57 +01:00
Werner Koch
e53253485c
agent: Fix possible uninitalized use of CTX in simple_pwquery.
* common/simple-pwquery.c (agent_open): Clear CTX even on early error.
--

GnuPG-bug-id: 4223
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit bafcf70951)
2018-10-24 20:30:17 +02:00
NIIBE Yutaka
8f844ae1cd common: Fix gnupg_reopen_std.
* common/sysutils.c (gnupg_reopen_std): Use fcntl instead of fstat.

--

Cherry-pick from master commit of:
	50b02dba20

When gpg was invoked by a Perl web application on FreeBSD, fstat in
gnupg_reopen_std failed with EBADF.  Using fcntl, which is considered
lighter than fstat, it works fine.  Since uur purpose is to check if
file descriptor is valid or not, lighter operation is better.

Reported-by: Marcin Gryszkalis <mg@fork.pl>
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-10-02 14:31:56 +09:00
NIIBE Yutaka
0383e7fed7 common: Use iobuf_get_noeof to avoid undefined behaviors.
* common/iobuf.c (block_filter): Use iobuf_get_noeof.

--

Cherry-pick from master commit of:
	f80346f42d

When singed integer has negative value, left shift computation is
undefined in C.

GnuPG-bug-id: 4093
Reported-by: Philippe Antoine
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-10 13:59:14 +09:00
NIIBE Yutaka
f0fdee2e24 Fix use of strncpy, which is actually good to use memcpy.
* common/ssh-utils.c (get_fingerprint): Use memcpy.
* g10/build-packet.c (string_to_notation): Use memcpy.

--

Cherry-pick of master commit of:
	625ced6e67

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2018-09-06 11:46:20 +09:00
Werner Koch
38eb7c360b
assuan: Fix exponential decay for first second.
* common/asshelp.c (wait_for_sock): Round SECSLEFT.
* dirmngr/dirmngr.c (main): Take care of --debug-wait also in dameon
mode.
* common/sysutils.c (gnupg_usleep) [HAVE_NANOSLEEP]: Fix nanosleep use.
--

Without the rounding we saw in verbose mose

 [...]to come up ... (5s)
 [...]to come up ... (4s)

immediately without the expected one second delay.  Waiting for the
next seconds did not work if nanosleep was used due to improper passed
parameters in gnupg_usleep.

Adding --debug-wait for dirmngr in daemon mode is required to test
this change.

GnuPG-bug-id: 3490
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 0cfdd3b57d)
Fixes-commit: 1189df2cd7
Signed-off-by: Werner Koch <wk@gnupg.org>
2018-08-28 16:47:38 +02:00
Daniel Kahn Gillmor
1189df2cd7
assuan: Use exponential decay for first 1s of spinlock.
* common/asshelp.c (wait_for_sock): instead of checking the socket
every second, we check 10 times in the first second (with exponential
decay).
--

This cuts the wall clock time for the standard test suite roughly by
half.

GnuPG-bug-id: 3490
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
(cherry picked from commit 149041b0b9)
2018-08-28 16:41:47 +02:00
Daniel Kahn Gillmor
a22a55b994
assuan: Reorganize waiting for socket.
* common/asshelp.c (wait_for_sock): New function, collecting
codepaths from...
(start_new_gpg_agent) here and...
(start_new_dirmngr) here.
--

This has no functional change, but makes it easier to make this
function more efficient.

GnuPG-bug-id: 3490
Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
(cherry picked from commit 0471ff9d3b)
2018-08-28 16:41:35 +02:00