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86 Commits

Author SHA1 Message Date
Werner Koch
60b4982836
gpg,sm: Merge the two versions of check_special_filename.
* sm/gpgsm.c (check_special_filename): Move to ..
* common/sysutils.c (check_special_filename): here.  Add arg
NOTRANSLATE.
(allow_special_filenames): New local var.
(enable_special_filenames): New public functions.
* sm/gpgsm.c (allow_special_filenames): Remove var.
(main): Call enable_special_filenames instead of setting the var.
(open_read, open_es_fread, open_es_fwrite): Call
check_special_filename with 0 for NOTRANSLATE.
* common/iobuf.c (special_names_enabled): Remove var.
(iobuf_enable_special_filenames): Remove func.
(check_special_filename): Remove func.
(iobuf_is_pipe_filename): Call new version of the function with
NOTRANSLATE set.
(do_open): Ditto.
* g10/gpg.c (main): Call enable_special_filenames instead of
iobuf_enable_special_filenames.
* g10/gpgv.c (main): Ditto.
--

Note that we keep the iobuf.c:translate_file_handle because it is a
bit different (for whatever reasons) than the translate function from
sysutils.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-29 16:54:36 +01:00
Werner Koch
4d7dc432b5
Change all http://www.gnu.org in license notices to https://
--
2016-11-05 12:02:19 +01:00
Daniel Kahn Gillmor
dc107b7850 More cleanup of "allow to".
* README, agent/command.c, agent/keyformat.txt, common/i18n.c,
  common/iobuf.c, common/keyserver.h, dirmngr/cdblib.c,
  dirmngr/ldap-wrapper.c, doc/DETAILS, doc/TRANSLATE,
  doc/announce-2.1.txt, doc/gpg.texi, doc/gpgsm.texi,
  doc/scdaemon.texi, doc/tools.texi, doc/whats-new-in-2.1.txt,
  g10/export.c, g10/getkey.c, g10/import.c, g10/keyedit.c, m4/ksba.m4,
  m4/libgcrypt.m4, m4/ntbtls.m4, po/ca.po, po/cs.po, po/da.po,
  po/de.po, po/el.po, po/eo.po, po/es.po, po/et.po, po/fi.po,
  po/fr.po, po/gl.po, po/hu.po, po/id.po, po/it.po, po/ja.po,
  po/nb.po, po/pl.po, po/pt.po, po/ro.po, po/ru.po, po/sk.po,
  po/sv.po, po/tr.po, po/uk.po, po/zh_CN.po, po/zh_TW.po,
  scd/app-p15.c, scd/ccid-driver.c, scd/command.c, sm/gpgsm.c,
  sm/sign.c, tools/gpgconf-comp.c, tools/gpgtar.h: replace "Allow to"
  with clearer text.

In standard English, the normal construction is "${XXX} allows ${YYY}
to" -- that is, the subject (${XXX}) of the sentence is allowing the
object (${YYY}) to do something.  When the object is missing, the
phrasing sounds awkward, even if the object is implied by context.
There's almost always a better construction that isn't as awkward.

These changes should make the language a bit clearer.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-08-03 16:55:33 +02:00
Justus Winter
b2572b0c38 common: Fix iobuf_peek corner case.
Previously, iobuf_peek on a file smaller than 'buflen' would hang.

* common/iobuf.c (underflow): Generalize by adding a target parameter.
(iobuf_peek): Use this to prevent looping here.
* tests/openpgp/Makefile.am (TESTS): Add new test.
* tests/openpgp/setup.scm (dearmor): Move function...
* tests/openpgp/defs.scm (dearmor): ... here.
* tests/openpgp/issue2419.scm: New file.
* tests/openpgp/samplemsgs/issue2419.asc: Likewise.

GnuPG-bug-id: 2419
Signed-off-by: Justus Winter <justus@g10code.com>
2016-07-26 18:37:37 +02:00
Justus Winter
d2d19063d3 common: Fix memory leak.
* common/iobuf.c (iobuf_set_partial_body_length_mode): Only create
context if necessary.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-06-30 18:50:16 +02:00
Neal H. Walfield
1463f9b962 gpg: Rename pop_filter to iobuf_pop_filter and export it.
* common/iobuf.c (pop_filter): Rename from this...
(iobuf_pop_filter): ... to this.  Don't mark it as static.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-03-02 20:36:16 +01:00
Neal H. Walfield
75861b663b common: Reduce buffer size.
* common/iobuf.c (iobuf_copy): Change buffer size from 1 MB to 32 KB.

--
Change suggested by Werner based on the observation that other buffers
are of a similar size.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-02-23 22:39:58 +01:00
Neal H. Walfield
14d27b2cad common: Improve a function's documentation and comments.
* common/iobuf.c (iobuf_set_partial_body_length_mode): Fix
documentation and comment.  Add an assert.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-02-23 21:28:24 +01:00
Neal H. Walfield
33ac735a78 gpg: Use higher-level functions.
* g10/build-packet.c (do_symkey_enc): Use iobuf_write instead of
iobuf_put in a loop.  Use iobuf_copy instead of iobuf_read and
iobuf_write in a loop.  Move the memory wiping from here...
* common/iobuf.c (iobuf_copy): ... to here.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-02-23 21:10:51 +01:00
Neal H. Walfield
8066f8a347 common: Check for an error before reading.
* common/iobuf.c (iobuf_copy): If DEST has a pending error, don't
start copying.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-02-23 21:04:29 +01:00
Neal H. Walfield
903466e124 common: More accurately name function.
* common/iobuf.c (iobuf_set_partial_block_mode): Rename from this...
(iobuf_set_partial_body_length_mode): ... to this.  Update callers.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-02-23 20:49:47 +01:00
NIIBE Yutaka
ea9cfcfbf7 common, g10: Fix indentation to silence GCC-6.
* common/iobuf.c (iobuf_ioctl): Fix.
* g10/encrypt.c (encrypt_filter): Likewise.
* g10/keyring.c (prepare_search): Likewise.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-02-15 11:05:29 +09:00
Neal H. Walfield
ad43dc6cfc common: Fix comment.
* common/iobuf.c (iobuf_flush_temp): Fix comment.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-02-14 14:46:16 +01:00
NIIBE Yutaka
3f52c7da39 common: Fix iobuf API of filter function for alignment.
* common/iobuf.h (IOBUFCTRL_DESC): Change the call semantics.
* common/iobuf.c (iobuf_desc): Add the second argument DESC.
(print_chain, iobuf_close, do_open, iobuf_sockopen, iobuf_ioctl)
(iobuf_push_filter2, pop_filter, iobuf_write_temp): Change calls
of iobuf_desc.
(file_filter, file_es_filter, sock_filter, block_filter): Fill the
description.
* common/t-iobuf.c (every_other_filter, double_filter): Likewise.
* g10/armor.c, g10/cipher.c, g10/compress-bz2.c, g10/compress.c,
g10/decrypt-data.c, g10/encrypt.c, g10/mdfilter.c, g10/progress.c,
g10/textfilter.c: Likewise.

--

Newer GCC warns against possible alignment difference of pointers.
This change can silence those warnings.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-01-12 10:32:20 +09:00
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
022342e284
Silence unused variable or parameter warnings.
--
2015-11-27 18:32:26 +01:00
Justus Winter
eb957ffc47 common: Avoid undefined behavior.
* common/iobuf.c (iobuf_esopen): Initialize 'len' as 'file_es_filter'
will make use of it.
--
Found using the Clang Static Analyzer.

Signed-off-by: Justus Winter <justus@g10code.com>
2015-11-19 16:13:55 +01:00
Justus Winter
a9e0905342 Fix typos found using codespell.
* agent/cache.c: Fix typos.
* agent/call-pinentry.c: Likewise.
* agent/call-scd.c: Likewise.
* agent/command-ssh.c: Likewise.
* agent/command.c: Likewise.
* agent/divert-scd.c: Likewise.
* agent/findkey.c: Likewise.
* agent/gpg-agent.c: Likewise.
* agent/w32main.c: Likewise.
* common/argparse.c: Likewise.
* common/audit.c: Likewise.
* common/audit.h: Likewise.
* common/convert.c: Likewise.
* common/dotlock.c: Likewise.
* common/exechelp-posix.c: Likewise.
* common/exechelp-w32.c: Likewise.
* common/exechelp-w32ce.c: Likewise.
* common/exechelp.h: Likewise.
* common/helpfile.c: Likewise.
* common/i18n.h: Likewise.
* common/iobuf.c: Likewise.
* common/iobuf.h: Likewise.
* common/localename.c: Likewise.
* common/logging.c: Likewise.
* common/openpgp-oid.c: Likewise.
* common/session-env.c: Likewise.
* common/sexputil.c: Likewise.
* common/sysutils.c: Likewise.
* common/t-sexputil.c: Likewise.
* common/ttyio.c: Likewise.
* common/util.h: Likewise.
* dirmngr/cdblib.c: Likewise.
* dirmngr/certcache.c: Likewise.
* dirmngr/crlcache.c: Likewise.
* dirmngr/dirmngr-client.c: Likewise.
* dirmngr/dirmngr.c: Likewise.
* dirmngr/dirmngr_ldap.c: Likewise.
* dirmngr/dns-stuff.c: Likewise.
* dirmngr/http.c: Likewise.
* dirmngr/ks-engine-hkp.c: Likewise.
* dirmngr/ks-engine-ldap.c: Likewise.
* dirmngr/ldap-wrapper.c: Likewise.
* dirmngr/ldap.c: Likewise.
* dirmngr/misc.c: Likewise.
* dirmngr/ocsp.c: Likewise.
* dirmngr/validate.c: Likewise.
* g10/encrypt.c: Likewise.
* g10/getkey.c: Likewise.
* g10/gpg.c: Likewise.
* g10/gpgv.c: Likewise.
* g10/import.c: Likewise.
* g10/keydb.c: Likewise.
* g10/keydb.h: Likewise.
* g10/keygen.c: Likewise.
* g10/keyid.c: Likewise.
* g10/keylist.c: Likewise.
* g10/keyring.c: Likewise.
* g10/mainproc.c: Likewise.
* g10/misc.c: Likewise.
* g10/options.h: Likewise.
* g10/packet.h: Likewise.
* g10/parse-packet.c: Likewise.
* g10/pkclist.c: Likewise.
* g10/pkglue.c: Likewise.
* g10/plaintext.c: Likewise.
* g10/server.c: Likewise.
* g10/sig-check.c: Likewise.
* g10/sqlite.c: Likewise.
* g10/tdbio.c: Likewise.
* g10/test-stubs.c: Likewise.
* g10/tofu.c: Likewise.
* g10/trust.c: Likewise.
* g10/trustdb.c: Likewise.
* g13/create.c: Likewise.
* g13/mountinfo.c: Likewise.
* kbx/keybox-blob.c: Likewise.
* kbx/keybox-file.c: Likewise.
* kbx/keybox-init.c: Likewise.
* kbx/keybox-search-desc.h: Likewise.
* kbx/keybox-search.c: Likewise.
* kbx/keybox-update.c: Likewise.
* scd/apdu.c: Likewise.
* scd/app-openpgp.c: Likewise.
* scd/app-p15.c: Likewise.
* scd/app.c: Likewise.
* scd/ccid-driver.c: Likewise.
* scd/command.c: Likewise.
* scd/iso7816.c: Likewise.
* sm/base64.c: Likewise.
* sm/call-agent.c: Likewise.
* sm/call-dirmngr.c: Likewise.
* sm/certchain.c: Likewise.
* sm/gpgsm.c: Likewise.
* sm/import.c: Likewise.
* sm/keydb.c: Likewise.
* sm/minip12.c: Likewise.
* sm/qualified.c: Likewise.
* sm/server.c: Likewise.
* tools/gpg-check-pattern.c: Likewise.
* tools/gpgconf-comp.c: Likewise.
* tools/gpgkey2ssh.c: Likewise.
* tools/gpgparsemail.c: Likewise.
* tools/gpgtar.c: Likewise.
* tools/rfc822parse.c: Likewise.
* tools/symcryptrun.c: Likewise.

Signed-off-by: Justus Winter <justus@g10code.com>
2015-11-17 12:50:22 +01:00
Neal H. Walfield
fd4b9e2328 common: Add a function for copying data from one iobuf to another.
* common/iobuf.c (iobuf_copy): New function.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2015-11-05 14:09:01 +01:00
Neal H. Walfield
f2d75ac7dc iobuf: Add the IOBUF_INPUT_TEMP type to improve input temp handling.
* common/iobuf.h (enum iobuf_use): Add new member, IOBUF_INPUT_TEMP.
* common/iobuf.c (iobuf_temp_with_content): Create the iobuf as an
IOBUF_INPUT_TEMP, not an IOBUF_INPUT buffer.  Assert that LENGTH ==
A->D.SIZE.
(iobuf_push_filter2): If A is an IOBUF_INPUT_TEMP, then make the new
filter an IOBUF_INPUT filter and set its buffer size to
IOBUF_BUFFER_SIZE.
(underflow): If A is an IOBUF_INPUT_TEMP, then just return EOF; don't
remove already read data.
(iobuf_seek): If A is an IOBUF_INPUT_TEMP, don't discard the buffered
data.
(iobuf_alloc): Allow USE == IOBUF_INPUT_TEMP.
(pop_filter): Allow USE == IOBUF_INPUT_TEMP.
(iobuf_peek): Allow USE == IOBUF_INPUT_TEMP.
(iobuf_writebyte): Fail if USE == IOBUF_INPUT_TEMP.
(iobuf_write): Fail if USE == IOBUF_INPUT_TEMP.
(iobuf_writestr): Fail if USE == IOBUF_INPUT_TEMP.
(iobuf_flush_temp): Fail if USE == IOBUF_INPUT_TEMP.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.

Introduce a new iobuf type, IOBUF_INPUT_TEMP.  Use this for the iobuf
created by iobuf_temp_with_content instead of IOBUF_INPUT.  This was
necessary so that seeking and peeking correctly work on this type of
iobuf.  In particular, seeking didn't work because we discarded the
buffered data and peeking didn't work because we discarded data which
was already read, which made seeking later impossible.
2015-09-02 10:24:49 +02:00
Neal H. Walfield
5ff5e72b9c iobuf: Rename IOBUF_TEMP to IOBUF_OUTPUT_TEMP.
* common/iobuf.h (enum iobuf_use): Rename IOBUF_TEMP to
IOBUF_OUTPUT_TEMP.  Update users.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-09-02 10:07:41 +02:00
Neal H. Walfield
49f922286f common/iobuf.c: Make control flow more obvious.
* common/iobuf.c (iobuf_read): Make control flow more obvious.
(iobuf_get_filelength): Likewise.
(iobuf_get_fd): Likewise.
(iobuf_seek): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:27 +02:00
Neal H. Walfield
c5da750cf3 common/iobuf.c: Add some sanity checks to catch programmer bugs.
* common/iobuf.c (iobuf_alloc): Check that BUFSIZE is not 0.
(iobuf_readbyte): Check that A is an input filter.  Check that the
amount of read data is at most the amount of buffered data.
(iobuf_read): Check that A is an input filter.
(iobuf_writebyte): Check that A is not an input filter.
(iobuf_writestr): Check that A is not an input filter.
(iobuf_flush_temp): Check that A is not an input filter.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:27 +02:00
Neal H. Walfield
e291b631c3 common/iobuf.c:iobuf_write_temp: Elide redundant code.
* common/iobuf.c (iobuf_write_temp): Don't repeat iobuf_flush_temp.
Use it directly.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:26 +02:00
Neal H. Walfield
a6d4bca3b5 common/iobuf.c: Have iobuf_writestr use iobuf_write, not iobuf_writebyte
* common/iobuf.c (iobuf_write): Don't write a byte at a time.  Use
iobuf_write.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:26 +02:00
Neal H. Walfield
1bfd1e4324 common/iobuf: Improve documentation and code comments.
common/iobuf.h: Improve documentation and code comments.
common/iobuf.c: Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:25 +02:00
Neal H. Walfield
0d40c4e83f common/iobuf.c: Adjust buffer size of filters in front of temp filters.
* common/iobuf.c (iobuf_push_filter2): If the head filter is a temp
filter, use IOBUF_BUFFER_SIZE for the new filter.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:25 +02:00
Neal H. Walfield
827cc922d8 common/iobuf.c: Buffered data should not be processed by new filters.
* common/iobuf.c (iobuf_push_filter2): If the pipeline is an output or
temp pipeline, the new filter shouldn't assume ownership of the old
head's internal buffer: the data was written before the filter was
added.
* common/t-iobuf.c (double_filter): New function.
(main): Add test cases for the above bug.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:24 +02:00
Neal H. Walfield
616181f3c7 common/iobuf.c: Flush the pipeline in iobuf_temp_to_buffer.
* common/iobuf.c (iobuf_temp_to_buffer): Flush each filter in the
pipeline and copy the data from the last (not the first) filter's
internal buffer.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:23 +02:00
Neal H. Walfield
15ae99f887 common/iobuf.c: Combine iobuf_open, iobuf_create and iobuf_openrw.
* common/iobuf.c (do_open): New function, which is a generalization of
iobuf_open, iobuf_Create, iobuf_openrw.
(iobuf_open): Call do_open.
(iobuf_create): Likewise.
(iobuf_openrw): Likewise.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:23 +02:00
Neal H. Walfield
8402815d8e common/iobuf.h: Remove iobuf_open_fd_or_name.
* common/iobuf.h (iobuf_open_fd_or_name): Remove prototype.  Replace
use with either iobuf_open or iobuf_fdopen_nc, as appropriate.
* common/iobuf.c (iobuf_open): Remove function.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:22 +02:00
Neal H. Walfield
6d49a2b669 common/iobuf.c: Rename iobuf_flush and make it a static function.
* common/iobuf.h (iobuf_flush): Remove prototype.
* common/iobuf.c (filter_flush): New static prototype.
(iobuf_flush): Rename...
(filter_flush): ... to this.  Make static.  Simplify code.  Update
callers.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:21 +02:00
Neal H. Walfield
1f94646a86 common/iobuf.c: Don't abort freeing a pipeline if freeing a filter fails
* common/iobuf.c (iobuf_cancel): Don't abort freeing a pipeline if
freeing a filter fails.  This needs to a memory leak.  Instead, keep
freeing and return the error code of the first filter that fails.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:21 +02:00
Neal H. Walfield
a250f73783 common/iobuf.c: Improve iobuf_peek.
* common/iobuf.c (underflow): Take additional parameter
clear_pending_eof.  If not set, don't clear a pending eof when
returning EOF.  Update callers.
(iobuf_peek): Fill the internal buffer, if needed, to be able to
better satisfy any request.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:20 +02:00
Neal H. Walfield
c7ad36eb0d common/iobuf.c: When requested, fill the buffer even if it is not empty.
* common/iobuf.c (underflow): Don't require that the buffer be empty.
When called, fill any available space.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:20 +02:00
Neal H. Walfield
4e32c602f5 common/iobuf.c: Better respect boundary conditions in iobuf_read_line.
* common/iobuf.c (iobuf_read_line): Be more careful with boundary
conditions.
* common/iobuf.h: Include <gpg-error.h>.
* common/t-iobuf.c: New file.
* common/Makefile.am (module_tests): Add t-iobuf.
(t_mbox_util_LDADD): New variable.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:19 +02:00
Neal H. Walfield
fa9fda23c2 common/iobuf.c: Fix filter type for iobuf_temp_with_content.
* common/iobuf.c (iobuf_temp_with_content): Set the filter type to
IOBUF_INPUT, not IOBUF_TEMP, which is only for output filters that
write into a dynamic buffer.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:18 +02:00
Neal H. Walfield
679acc671e common/iobuf.c: Refactor code to not need the desc field.
* common/iobuf.h (struct iobuf_struct): Remove field desc.
* common/iobuf.c (iobuf_desc): New function.  When a filter's
description is needed, use this instead of the filter's desc field.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:17 +02:00
Neal H. Walfield
12fc56bcb5 common/iobuf.h: Clarify semantics of nofast. Simplify implementation.
* common/iobuf.h (struct iobuf_struct): Clarify semantics of nofast.
Simplify use of nofast to implement just these semantics.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:16 +02:00
Neal H. Walfield
e8c0b6abf8 common/iobuf.c: Remove dead code (directfp).
* common/iobuf.h (struct iobuf_struct): Remove field directfp.  Remove
all uses of it.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:16 +02:00
Neal H. Walfield
f05d60b381 common/iobuf.c: Remove dead code (opaque).
* common/iobuf.h (struct iobuf_struct): Remove field opaque.  Remove
all uses of it.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:15 +02:00
Neal H. Walfield
c06eabac8e common/iobuf.h: Replace further use of literals with symbolic constants.
* common/iobuf.c: Move BLOCK_FILTER_INPUT,
BLOCK_FILTER_OUTPUT_BLOCK_FILTER_TEMP from here...
* common/iobuf.h: ... to here and rename to IOBUF_INPUT, IOBUF_OUTPUT
and IOBUF_TEMP, respectively.  Where appropriate, use these macros
instead of a literal.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-20 14:16:14 +02:00
Neal H. Walfield
c80643c5ec common/iobuf.c: Replace use of literals with symbolic constants.
* common/iobuf.c (BLOCK_FILTER_INPUT): Define.  Where appropriate, use
this instead of a literal.
(BLOCK_FILTER_OUTPUT): Likewise.
(BLOCK_FILTER_TEMP): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>.
2015-08-08 13:09:00 +02:00
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
Daniel Kahn Gillmor
367b073ab5 avoid future chance of using uninitialized memory
* common/iobuf.c: (iobuf_open): initialize len

--

In iobuf_open, IOBUFCTRL_DESC and IOBUFCTRL_INIT commands are invoked
(via file_filter()) on fcx, passing in a pointer to an uninitialized
len.

With these two commands, file_filter doesn't actually do anything with
the value of len, so there's no actual risk of use of uninitialized
memory in the code as it stands.

However, some static analysis tools might flag this situation with a
warning, and initializing the value doesn't hurt anything, so i think
this trivial cleanup is warranted.

Debian-Bug-Id: 773469
2014-12-22 13:14:17 +01:00
Werner Koch
c434de4d83 gpg: Create exported secret files and revocs with mode 700.
* common/iobuf.c (direct_open): Add arg MODE700.
(iobuf_create): Ditto.
* g10/openfile.c (open_outfile): Add arg RESTRICTEDPERM.  Change call
callers to pass 0 for it.
* g10/revoke.c (gen_desig_revoke, gen_revoke): Here pass true for new
arg.
* g10/export.c (do_export): Pass true for new arg if SECRET is true.
--

GnuPG-bug-id: 1653.

Note that this works only if --output has been used.
2014-06-30 09:12:48 +02:00
Werner Koch
35fdfaa0b9 common: Minor code cleanup for a legacy OS.
* common/iobuf.c (direct_open) [__riscos__]: Simply cpp conditionals.
2014-06-30 08:51:26 +02:00
Werner Koch
cb0dcc3408 w32: Include winsock2.h to silence warnings. 2014-03-07 14:18:43 +01:00
Werner Koch
e6175055fb gpg: Limit the nesting level of I/O filters.
* common/iobuf.c (MAX_NESTING_FILTER): New.
(iobuf_push_filter2): Limit the nesting level.

* g10/mainproc.c (mainproc_context): New field ANY.  Change HAVE_DATA
and ANY_SIG_SIGN to bit fields of ANY.  Add bit field
UNCOMPRESS_FAILED.
(proc_compressed): Avoid printing multiple Bad Data messages.
(check_nesting): Return GPG_ERR_BAD_DATA instead of UNEXPECTED_DATA.
--

This is a more general fix for the nested compression packet bug.  In
particular this helps g10/import.c:read_block to stop pushing
compression filters onto an iobuf stream.  This patch also reduces the
number of error messages for the non-import case.

Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 35e40e2d51)

Resolved conflicts:
	common/iobuf.c
	g10/mainproc.c
2013-10-04 14:05:59 +02:00
Werner Koch
492792378d gpg: Cache keybox searches.
* common/iobuf.c (iobuf_seek): Fix for temp streams.
* g10/pubkey-enc.c (get_session_key, get_it): Add some log_clock calls.
* g10/keydb.c (dump_search_desc): New.
(enum_keyblock_states, struct keyblock_cache): New.
(keyblock_cache_clear): New.
(keydb_get_keyblock, keydb_search): Implement a keyblock cache.
(keydb_update_keyblock, keydb_insert_keyblock, keydb_delete_keyblock)
(keydb_rebuild_caches, keydb_search_reset): Clear the cache.
--

Gpg uses the key database at several places without a central
coordination.  This leads to several scans of the keybox for the same
key.  To improve that we now use a simple cache to store a retrieved
keyblock in certain cases.  In theory this caching could also be done
for old keyrings, but it is a bit more work and questionable whether
it is needed; the keybox scheme is anyway much faster than keyrings.

Using a keybox with 20000 384 bit ECDSA/ECHD keypairs and a 252 byte
sample text we get these values for encrypt and decrypt operations on
an Core i5 4*3.33Ghz system.  The option --trust-model=always is used.
Times are given in milliseconds wall time.

|           | enc | dec | dec,q |
|-----------+-----+-----+-------|
| key 1     |  48 |  96 |    70 |
| key 10000 |  60 |  98 |    80 |
| key 20000 |  69 | 106 |    88 |
| 10 keys   | 540 | 290 |    70 |

The 10 keys test uses a mix of keys, the first one is used for
decryption but all keys are looked up so that information about are
printed.  The last column gives decryption results w/o information
printing (--quiet).

The keybox is always scanned sequentially without using any index.  By
adding an index to the keybox it will be possible to further reduce
the time required for keys stored to the end of the file.
2013-01-08 14:46:06 +01:00