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15 Commits

Author SHA1 Message Date
Werner Koch
2a13f7f9dc
gpgsm: Strip trailing zeroes from detached signatures.
* common/ksba-io-support.c: Include tlv.h
(struct reader_cb_parm_s): Add new fields.
(starts_with_sequence): New.
(simple_reader_cb): Handle stripping.
* common/ksba-io-support.h (GNUPG_KSBA_IO_STRIP): New.
(gnupg_ksba_create_reader): Handle the new flag.
* sm/verify.c (gpgsm_verify): Use the new flag for detached
signatures.
--

Note that this works only if --assume-binary is given.  The use case
for the feature is PDF signature checking where the PDF specs require
that the detached signature is padded with zeroes.
2023-03-08 11:00:00 +01:00
Werner Koch
94d13f53a3
common: Protect against a theoretical integer overflow in tlv.c
* common/tlv.c (parse_ber_header): Protect agains integer overflow.
--

Although there is no concrete case where we use the (nhdr + length),
it is better to protect against this already here.
2022-10-07 14:20:53 +02:00
Werner Koch
b6ba6a79ce
common: New function cmp_canon_sexp.
* common/sexputil.c (cmp_canon_sexp): New.
(cmp_canon_sexp_def_tcmp): New.
* common/t-sexputil.c (test_cmp_canon_sexp): Add a simple test.
--

To be used to fix
GnuPG-bug-id: 5061

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-09-11 15:23:22 +02:00
Werner Koch
5ea878274e
common: Add an easy to use DER builder.
* common/tlv-builder.c: New.
* common/tlv.c: Remove stuff only used by GnuPG 1.
(put_tlv_to_membuf, get_tlv_length): Move to ...
* common/tlv-builder.c: here.
* common/tlv.h (tlv_builder_t): New.
--

Such code should actually go into libksba and we will eventually do
that.  However, for now it is easier to keep it here.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-24 15:37:48 +02:00
Werner Koch
5d015b38eb
common: Add functions to help create DER objects.
* common/tlv.c (put_tlv_to_membuf): New.
(get_tlv_length): New.
* common/tlv.h: Include membuf.h.

Signed-off-by: Werner Koch <wk@gnupg.org>
2020-04-23 09:51:15 +02:00
Werner Koch
6170eb8090
Silence two -Wlogical-op warnings.
* common/tlv.c (parse_ber_header): Avoid compiler warning about a
duplicate condition.
* tools/gpgtar-create.c (pattern_valid_p): Likewise.

Signed-off-by: Werner Koch <wk@gnupg.org>
2017-01-05 20:43:40 +01:00
Werner Koch
4d7dc432b5
Change all http://www.gnu.org in license notices to https://
--
2016-11-05 12:02:19 +01:00
Werner Koch
e64317c15e
common: Avoid warnings about useless assignments.
* common/b64enc.c (b64enc_finish): Remove var assignment which is not
used later.
* common/iobuf.c (file_filter): Ditto.
* common/tlv.c (do_find_tlv): Ditto.
* common/userids.c (classify_user_id): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-01-06 08:35:56 +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 91b826a38880fd8a989318585eb502582636ddd8 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
37df3d5f59 Change license for some files in common to LGPLv3+/GPLv2+.
Having the LGPL on the common GnuPG code helps to share code
between GnuPG and related projects (like GPGME and Libassuan).  This
is good for interoperability and to reduces bugs.

* common/asshelp.c, common/asshelp.h, common/asshelp2.c, common/b64dec.c
* common/b64enc.c, common/convert.c, common/dns-cert.c
* common/dns-cert.h common/exechelp-posix.c, common/exechelp-w32.c
* common/exechelp-w32ce.c, common/exechelp.h, common/get-passphrase.c
* common/get-passphrase.h, common/gettime.c, common/gpgrlhelp.c
* common/helpfile.c, common/homedir.c, common/http.c, common/http.h
* common/i18n.c, common/init.c, common/init.h, common/iobuf.c
* common/iobuf.h, common/localename.c, common/membuf.c, common/membuf.h
* common/miscellaneous.c, common/openpgp-oid.c, common/openpgpdefs.h
* common/percent.c, common/pka.c, common/pka.h, common/session-env.c
* common/session-env.h, common/sexp-parse.h, common/sexputil.c
* common/signal.c, common/srv.c, common/srv.h, common/ssh-utils.c
* common/ssh-utils.h, common/sysutils.c, common/sysutils.h
* common/tlv.c, common/tlv.h, common/ttyio.c, common/ttyio.h
* common/userids.c, common/userids.h, common/xasprintf.c: Change
license to LGPLv3+/GPLv2+/
2012-04-20 15:48:48 +02:00
Werner Koch
13ec74481c common: Replace macro based function calls by using DEFAULT_ERRSOURCE.
* common/dns-cert.h (get_dns_cert): Remove macro.
* common/dns-cert.c (_get_dns_cert): Rename to get_dns_cert.  Replace
arg ERRSOURCE by global DEFAULT_ERRSOURCE.
* common/http.h (http_parse_uri, http_raw_connect, http_open)
(http_open_document, http_wait_response): Remove macros.
* common/http.c (_http_parse_uri, _http_raw_connect, _http_open)
(_http_open_document, _http_wait_response): Remove underscore from
symbols.  Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
* common/ssh-utils.h (ssh_get_fingerprint)
(ssh_get_fingerprint_string): Remove macros.
* common/ssh-utils.h (_ssh_get_fingerprint)
(_ssh_get_fingerprint_string): Remove underscore from symbols.
Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
* common/tlv.h (parse_ber_header, parse_sexp): Remove macros.
* common/tlv.c: Include util.h.
(_parse_ber_header, _parse_sexp): Remove underscore from symbols.
Replace args ERRSOURCE by global DEFAULT_ERRSOURCE.
2012-02-07 10:15:57 +01:00
Werner Koch
dfdda3b344 Add new functions to convert iso time strings. 2011-03-01 14:22:41 +01:00
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
0e018d7144 Some minor changes and typo fixes.
Started to implement a TCP option in gpg-connect-agent.
2010-02-26 10:52:05 +00:00
Werner Koch
74d344a521 Implemented the chain model for X.509 validation. 2007-08-10 16:52:05 +00:00