Commit Graph

31 Commits

Author SHA1 Message Date
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 be8b30f8eb
kbx: Add bounds check to detect corrupt keyboxes.
* kbx/keybox-dump.c (_keybox_dump_blob): Fix the fixmes.  Add support
for 32 byte fingerprints.
--

kbxutil is a debug tool but nevertheless it should behave well and not
read beyond allocated buffers and in turn crash.

Vincent Ulitzsch and Dominik Maier were kind enough to report these
crashes along with a couple of test keyboxes and crash analysis.

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

Backported from master and while doing that adding also the support
for OpenPGP v5 keys.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-09-22 11:53:01 +02:00
Werner Koch 34f55c5e34
kbx: Include deleted records into the --stats output.
* kbx/keybox-dump.c (_keybox_dump_file): Take deleted records in
account.
--

This also changes the numbering of the records to reflect the real
record number.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 5ef0d7a795)
2019-08-23 15:59:06 +02:00
Werner Koch 0039d7107b
kbx: Unify blob reading functions.
* kbx/keybox-file.c (_keybox_read_blob): Remove.
(_keybox_read_blob2): Rename to ....
(_keybox_read_blob): this.  Make arg options.  Change all callers.
* kbx/keybox-search.c (keybox_search): Factor fopen call out to ...
(open_file): new.
(keybox_seek): Als use open_file.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-04-01 11:10:47 +02:00
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
Werner Koch 4d7dc432b5
Change all http://www.gnu.org in license notices to https://
--
2016-11-05 12:02:19 +01:00
Werner Koch 0de7d61437
kbx: Avoid warnings about useless assignments.
* kbx/keybox-dump.c (_keybox_dump_blob): Remove setting of IN_RANGE
and the last increment of P.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-01-07 19:09:15 +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 935edf88ab kbx: Let keydb_search skip unwanted blobs.
* kbx/keybox.h (keybox_blobtype_t): New.
* kbx/keybox-defs.h (BLOBTYPE_*): Replace by KEYBOX_BLOBTYPE_*.
* kbx/keybox-search.c (keybox_search): Add arg want_blobtype and skip
non-matching blobs.
* sm/keydb.c (keydb_search): Pass KEYBOX_BLOBTYPE_X509 to keybox_search.
* g10/keydb.c (keydb_search): Pass KEYBOX_BLOBTYPE_PGP to keybox_search.
--

Without this fix a listing of all keys would fail because the wrong
blob type would be returned for the gpg or gpgsm.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-10-31 12:15:34 +01:00
Werner Koch b6507bb80e kbx: Fix handling of overlong keys.
* kbx/keybox-file.c (IMAGELEN_LIMIT): Change limit from 10^6 to 2MiB.
(_keybox_read_blob2): Skip too long record records.
(_keybox_write_blob): Do not accept too long record.
* kbx/keybox-dump.c (file_stats_s): Add field skipped_long_blobs.
(_keybox_dump_file): Print new counter.
(_keybox_dump_file): Skip too long records.
----

To test this feature you may set the limit back to 1MiB and use key
F7F0E70F307D56ED which is in my local copy close to 2MiB.  Without
this patch it was possible to import the key but access to that key
and all keys stored after it was not possible.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-10-09 20:19:05 +02:00
Werner Koch ec332d58ef gpg: Take care to use pubring.kbx if it has ever been used.
* kbx/keybox-defs.h (struct keybox_handle): Add field for_openpgp.
* kbx/keybox-file.c (_keybox_write_header_blob): Set openpgp header
flag.
* kbx/keybox-blob.c (_keybox_update_header_blob): Add arg for_openpgp
and set header flag.
* kbx/keybox-init.c (keybox_new): Rename to do_keybox_new, make static
and add arg for_openpgp.
(keybox_new_openpgp, keybox_new_x509): New.  Use them instead of the
former keybox_new.
* kbx/keybox-update.c (blob_filecopy): Add arg for_openpgp and set the
openpgp header flags.

* g10/keydb.c (rt_from_file): New.  Factored out and extended from
keydb_add_resource.
(keydb_add_resource): Switch to the kbx file if it has the openpgp
flag set.

* kbx/keybox-dump.c (dump_header_blob): Print header flags.
--

The problem was reported by dkg on gnupg-devel (2014-10-07):

  I just discovered a new problem, though, which will affect people on
  systems that have gpg and gpg2 coinstalled:

   0) create a new keyring with gpg2, and use it exclusively with gpg2
  for a while.
   1) somehow (accidentally?) use gpg (1.4.x) again -- this creates
  ~/.gnupg/pubring.gpg
   2) future runs of gpg2 now only look at pubring.gpg and ignore
  pubring.kbx -- the keys you had accumulated in the keybox are no
  longer listed in the output of gpg2 --list-keys

Note that gpgsm has always used pubring.kbx and thus this file might
already be there but without gpg ever inserted a key.  The new flag in
the KBX header gives us an indication whether a KBX file has ever been
written by gpg >= 2.1.  If that is the case we will use it instead of
the default pubring.gpg.

Signed-off-by: Werner Koch <wk@gnupg.org>
2014-10-09 19:10:32 +02:00
Werner Koch 5499942571 kbx: Implement update operation for OpenPGP keyblocks.
* kbx/keybox-update.c (keybox_update_keyblock): Implement.
* kbx/keybox-search.c (get_blob_flags): Move to ...
* kbx/keybox-defs.h (blob_get_type): here.
* kbx/keybox-file.c (_keybox_read_blob2): Fix calling without R_BLOB.
* g10/keydb.c (build_keyblock_image): Allow calling without
R_SIGSTATUS.
(keydb_update_keyblock): Implement for keybox.

* kbx/keybox-dump.c (_keybox_dump_blob): Fix printing of the unhashed
size.  Print "does not expire" also on 64 bit platforms.

Signed-off-by: Werner Koch <wk@gnupg.org>
2013-11-15 15:54:31 +01:00
Werner Koch 9ae48b173c kbx: Fix possible segv in kbxdump.
* kbx/keybox-dump.c (_keybox_dump_blob): Check length before get32.

Signed-off-by: Werner Koch <wk@gnupg.org>
2013-11-15 09:01:11 +01:00
Werner Koch b11f84b858 kbx: Switch from MD5 to SHA-1 for the checksum.
* kbx/keybox-blob.c (put_membuf): Use a NULL buf to store zero bytes.
(create_blob_finish): Write just the needed space.
(create_blob_finish): Switch to SHA-1.
* kbx/keybox-dump.c (print_checksum): New.
(_keybox_dump_blob): Print the checksum and the verification status.
--

The checksum was never used in the past.  Due to fast SHA-1
computations in modern CPUs we now use SHA-1.  Eventually we will
support a First blob flag to enable the use of a secret or public
HMAC-SHA1.  The first may be used for authentication of keyblocks and
the latter to mitigate collission attacks on SHA-1.  It is not clear
whether this will be useful at all.
2013-01-08 21:55:34 +01:00
Werner Koch 564d10ea5c kbxutil: Improve format of the Sig-Expire lines.
* kbx/keybox-dump.c (_keybox_dump_blob): Print the expirate timestamp.
2012-12-28 17:07:37 +01:00
Werner Koch f7495f1004 kbxutil: Print algo number and fold similar lines.
* kbx/keybox-defs.h (_keybox_openpgp_key_info): Add field ALGO.
* kbx/keybox-openpgp.c (parse_key): Store algo.
* kbx/kbxutil.c (dump_openpgp_key): Print algo number.
* kbx/keybox-dump.c (_keybox_dump_blob): Print identical Sig-Expire
value lines with a range of indices.
2012-12-28 13:45:41 +01:00
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
Werner Koch b008274afd Nuked almost all trailing white space.
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces.  In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much.  For future commits the pre-commit scripts
checks that this won't happen again.
2011-02-04 12:57:53 +01:00
Werner Koch d8b1099d01 Merged jnlib into common. 2010-03-10 12:24:58 +00:00
Werner Koch 0a5f742466 Marked all unused args on non-W32 platforms. 2008-10-20 13:53:23 +00:00
Werner Koch 698ba5ae3c Add new features to kbxutil.
Fixed bug 829 (can't encrypt if duplicated certs are in the keybox)
2007-08-23 17:41:22 +00:00
Werner Koch 93d3811abc Changed to GPLv3.
Removed intl/.
2007-07-04 19:49:40 +00:00
Werner Koch f98537733a Updated FSF's address. 2006-06-20 17:21:37 +00:00
Werner Koch a1dfa88e52 * keybox-dump.c (_keybox_dump_file): New arg STATS_ONLY.
(update_stats): New.
* kbxutil.c (main): New command --stats.
2004-06-18 09:53:56 +00:00
Werner Koch 6aaceac7fe The keybox gets now compressed after 3 hours and ephemeral
stored certificates are deleted after about a day.
2004-04-26 08:09:25 +00:00
Repo Admin 7250331472 This commit was manufactured by cvs2svn to create branch
'GNUPG-1-9-BRANCH'.
2003-06-05 07:14:21 +00:00
Repo Admin 82a17c9fb3 This commit was manufactured by cvs2svn to create branch
'GNUPG-1-9-BRANCH'.
2002-10-19 07:55:27 +00:00
Werner Koch 508ce100c9 * keybox-defs.h: New BLOBTYPTE_EMPTY.
* keybox-dump.c (_keybox_dump_blob): Handle new type.
* keybox-file.c (_keybox_read_blob): Skip over empty blobs.  Store
the file offset.
* keybox-blob.c (_keybox_new_blob): Add new arg OFF.
(_keybox_get_blob_fileoffset): New.
* keybox-update.c (keybox_delete): Implemented.
2002-07-22 10:21:04 +00:00
Werner Koch 031a856a7e * keybox-init.c (keybox_set_ephemeral): New.
* keybox-blob.c (create_blob_header): Store epheermal flag.
(_keybox_create_x509_blob): Pass epheermal flag on.
* keybox-update.c (keybox_insert_cert): Ditto.
* keybox-search.c (blob_get_blob_flags): New.
(keybox_search): Ignore ephemeral blobs when not in ephemeral mode.

* keybox-dump.c (_keybox_dump_blob): Print blob flags as strings.
2002-06-19 08:29:41 +00:00
Werner Koch 90d060c199 We have reached a state where we are able to import certs and
check the certification path.
2001-11-13 12:50:14 +00:00
Werner Koch fcfec25620 Started with keybox implementation by basing it on code from the GnuPG
devel branch.
2001-11-10 18:06:11 +00:00