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Commit Graph

1747 Commits

Author SHA1 Message Date
Neal H. Walfield
bd9ebe1404 g10: Remove dead code.
* g10/tofu.c (tofu_set_policy_by_keyid): Remove function.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-12-06 12:16:56 +01:00
Werner Koch
41b3d0975d
gpg: New option --quick-set-expire.
* g10/gpg.c (aQuickSetExpire): New.
(opts): New option --quick-set-expire.
(main): Implement option.
* g10/keyedit.c (menu_expire): Add args FORCE_MAINKEY and
NEWEXPIRATION.  Change semantics of the return value.  Change caller.
(keyedit_quick_set_expire): New.
--

This patch partly solves
GnuPG-bug-id: 2701
2016-12-05 11:00:11 +01:00
Werner Koch
ef10c348bf
gpg: Fix error code arg in ERRSIG status line.
* g10/mainproc.c (check_sig_and_print): Use gpg_err_code to return an
error code in ERRSIG.
--

Debian-bug-id: 846834
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-12-03 21:36:14 +01:00
Werner Koch
ce29272e24
gpg: New option --default-new-key-algo.
* common/openpgp-oid.c (openpgp_is_curve_supported): Add optional arg
R_ALGO and change all callers.
* common/util.h (GPG_ERR_UNKNOWN_FLAG): New error code.
* g10/options.h (struct opt): Add field DEF_NEW_KEY_ALGO.
* g10/gpg.c (oDefaultNewKeyAlgo): New enum.
(opts): New option "--default-new-key-algo".
(main): Set the option.
* g10/keygen.c: Remove DEFAULT_STD_ FUTURE_STD_ constants and replace
them by ...
(DEFAULT_STD_KEY_PARAM, FUTURE_STD_KEY_PARAM): new string constants.
(get_keysize_range): Remove arg R_DEF and return that value instead.
Change all callers.
(gen_rsa): Use get_keysize_range instead of the removed
DEFAULT_STD_KEYSIZE.
(parse_key_parameter_part): New function.
(parse_key_parameter_string): New function.
(quick_generate_keypair): Refactor using parse_key_parameter_string.
(generate_keypair): Ditto.
(parse_algo_usage_expire): Ditto.
--

This new option is intended to be used in the forthcoming
--set-profile command of gpgconf.  It allows to provide a gpg
configuration with custom defaults for a new key using the simple
commands which use the default algorithm set.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-12-02 19:47:40 +01:00
Neal H. Walfield
cd532bb7b8 g10: Improve debugging output.
* g10/tofu.c (string_to_long): Improve debugging output.
(string_to_ulong): Likewise.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-12-02 11:07:04 +01:00
Neal H. Walfield
bd1a1d8582 g10: In the TOFU module, make strings easier to translate.
* g10/tofu.c: Remove dead code.
(time_ago_str): Simplify implementation since we only want the most
significant unit.
(format_conflict_msg_part1): Use ngettext.
(ask_about_binding): Likewise and only emit full sentences.
(show_statistics): Likewise.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-12-01 22:12:56 +01:00
Werner Koch
86efc3ee53
gpg: Let only Dirmngr decide whether CERT is supported.
* g10/getkey.c (parse_auto_key_locate): Do not build parts depending
on USE_DNS_CERT.
--

This also removes USE_DNS_SRV from commented code.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-12-01 16:40:32 +01:00
Werner Koch
a5910e00ac
gpg: Make --decrypt with output '-&nnnn' work.
* g10/plaintext.c (get_output_file): Check and open special filename
before falling back to stdout.
--

GnuPG-bug-id: 2677
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-29 16:54:36 +01:00
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
Justus Winter
52385a2ba1 g10: Fix memory leak.
* g10/decrypt.c (decrypt_messages): Properly decrease the reference
count of the armor filters after pushing them.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-29 16:48:35 +01:00
Neal H. Walfield
522f74f7e3 Improve some comments. 2016-11-29 14:56:00 +01:00
Neal H. Walfield
2f27cb12e3 g10: Extend TOFU_STATS to always show the validity
* doc/DETAILS (TOFU_STATS): Rename the VALIDITY field to SUMMARY.  Add
a new field called VALIDITY.
* g10/tofu.c (write_stats_status): Update output accordingly.

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

Change TOFU_STATS as discussed offline with Werner, Justus and Andre.
2016-11-29 14:55:59 +01:00
Justus Winter
4db9a42564 g10: Fix iteration over getkey results.
* g10/getkey.c (getkey_next): Only ask 'lookup' for the exact match if
our caller requested the key.  Fixes a crash in 'lookup'.

GnuPG-bug-id: 2848
Fixes-commit: 1d03cc77e1
Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-28 13:48:19 +01:00
Neal H. Walfield
03a65a5323 g10: Avoid gratuitously loading a keyblock when it is already available
* g10/trust.c (get_validity): Add new, optional parameter KB.  Only
load the keyblock if KB is NULL.  Update callers.
(get_validity): Likewise.
* g10/trustdb.c (tdb_get_validity_core): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
GnuPG-bug-id: 2812
2016-11-23 12:29:22 +01:00
Neal H. Walfield
bfeafe2d3f g10: Use es_fopen instead of open.
* g10/tofu.c: Don't include <utime.h>, <fcntl.h> or <unistd.h>.
(busy_handler): Replace use of open with es_fopen.

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

Thanks for Werner for pointing this out: es_fopen is more portable
than open.
2016-11-22 17:12:38 +01:00
Neal H. Walfield
44c17bcb00 g10: If the set of UTKs changes, invalidate any changed policies.
* g10/trustdb.c (tdb_utks): New function.
* g10/tofu.c (check_utks): New function.
(initdb): Call it.
* tests/openpgp/tofu.scm: Modify test to check the effective policy of
keys whose effective policy changes when we change the set of UTKs.

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

If the set of ultimately trusted keys changes, then it is possible
that a binding's effective policy changes.  To deal with this, we
detect when the set of ultimately trusted keys changes and invalidate
all cached policies.
2016-11-22 15:24:05 +01:00
Justus Winter
6ce14a805f g10: Fix memory leak.
* g10/tofu.c (tofu_notice_key_changed): Remove spurious duplicate call
to 'hexfingerprint'.

Fixes-commit: 037f9de092
Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-22 12:09:47 +01:00
Neal H. Walfield
037f9de092 g10: Cache the effective policy. Recompute it when required.
* g10/tofu.c (initdb): Add column effective_policy to the bindings
table.
(record_binding): New parameters effective_policy and set_conflict.
Save the effective policy.  If SET_CONFLICT is set, then set conflict
according to CONFLICT.  Otherwise, preserve the current value of
conflict.  Update callers.
(get_trust): Don't compute the effective policy here...
(get_policy): ... do it here, if it was not cached.  Take new
parameters, PK, the public key, and NOW, the time that the operation
started.  Update callers.
(show_statistics): New parameter PK.  Pass it to get_policy.  Update
callers.
(tofu_notice_key_changed): New function.
* g10/gpgv.c (tofu_notice_key_changed): New stub.
* g10/import.c (import_revoke_cert): Take additional argument CTRL.
Pass it to keydb_update_keyblock.
* g10/keydb.c (keydb_update_keyblock): Take additional argument CTRL.
Update callers.
[USE_TOFU]: Call tofu_notice_key_changed.
* g10/test-stubs.c (tofu_notice_key_changed): New stub.
* tests/openpgp/tofu.scm: Assume that manually setting a binding's
policy to auto does not cause the tofu engine to forget about any
conflict.

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

We now store the computed policy in the tofu DB (in the
effective_policy column of the bindings table) to avoid computing it
every time, which is expensive.  Further, policy is never overridden
in case of a conflict.  Instead, we detect a conflict if CONFLICT is
not empty.

This change is backwards compatible to existing DBs.  The only minor
incompatibility is that unresolved conflicts won't be automatically
resolved in case we import a direct signature, or cross signatures.
2016-11-21 22:47:30 +01:00
Neal H. Walfield
182efc5b5d g10: Correctly parameterize ngettext.
* g10/tofu.c (ask_about_binding): Correctly parameterize ngettext.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-11-21 21:22:02 +01:00
Neal H. Walfield
7142b293c8 g10: Don't use the same variable for multiple SQL compiled statements
* g10/tofu.c (struct tofu_dbs_s): Remove unused field
record_binding_update2.  Replace register_insert with
register_signature and register_encryption.
(tofu_register_signature): Don't use dbs->s.register_insert, but
dbs->s.register_signature.
(tofu_register_encryption): Don't use dbs->s.register_insert, but
dbs->s.register_encryption.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-11-21 21:13:15 +01:00
Neal H. Walfield
91a0483c5d g10: Add a convenience function for checking if a key is a primary key
* g10/keydb.h (pk_is_primary): New function.
* g10/tofu.c (get_trust): Use it.
(tofu_register_signature): Likewise.
(tofu_register_encryption): Likewise.
(tofu_set_policy): Likewise.
(tofu_get_policy): Likewise.

Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-11-21 16:39:53 +01:00
NIIBE Yutaka
1c0b140ccc g10: Fix flags to open for lock of ToFU.
* g10/tofu.c (busy_handler): Fix the flags and utime is not needed.

--

The argument flags must include one of O_RDONLY, O_WRONLY, or O_RDWR.
Adding O_TRUNC, the file is updated.  So, utime is not needed.

Fixes-commit: b2e1b17efa
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-11-18 20:32:22 +09:00
NIIBE Yutaka
b2e1b17efa g10: Fix creating a lock for ToFU.
* g10/tofu.c (busy_handler): Add third argument which is mandatory for
O_CREATE flag.

--

Reported-by: Kristian Fiskerstrand
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-11-18 09:32:34 +09:00
Werner Koch
5210ff70bc
doc: Typo fixes.
--

Reported-by: Nathan Musoke <nathan.musoke@gmail.com>
2016-11-17 15:29:35 +01:00
Werner Koch
c4506a3f15
common: Rename keybox_file_rename to gnupg_rename_file.
* kbx/keybox-util.c (keybox_file_rename): Rename to ...
* common/sysutils.c (gnupg_rename_file): this.  Change all callers.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-16 17:43:59 +01:00
Werner Koch
43bfaf2c54
gpg: New option --override-session-key-fd.
* g10/gpg.c (oOverrideSessionKeyFD): New.
(opts): Add option --override-session-key-fd.
(main): Handle that option.
(read_sessionkey_from_fd): New.
--

The override-session-key feature was designed to mitigate the effect
of the British RIP act by allowing to keep the private key private and
hand out only a session key.  For that use case the leaking of the
session key would not be a problem.  However there are other use
cases, for example fast re-decryption after an initial decryption,
which would benefit from concealing the session key from other users.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-16 09:03:03 +01:00
Werner Koch
500e594c2d
gpgv: New option --enable-special-filenames.
* g10/gpgv.c (oEnableSpecialFilenames): New.
(opts): Add option --enable-special-filenames.
(main): Implement that option.
--

This is the same option we have in gpg.  It allows to use commands
like

 gpgv --enable-special-filenames -- '-&3' - <msg 3<msg.sig

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-15 20:11:59 +01:00
Werner Koch
b47603a0ac
gpg: Add new compliance mode "de-vs".
* g10/options.h (CO_DE_VS): New.
(GNUPG): Also allow CO_DE_VS.
* g10/gpg.c (oDE_VS): New.
(parse_compliance_option): Add "de-vs".
(set_compliance_option): Set "de-vs".
* g10/misc.c (compliance_option_string): Return a description string.
(compliance_failure): Ditto.
* g10/keygen.c (ask_algo): Take care of CO_DE_VS.
(get_keysize_range): Ditto.
(ask_curve): Add new field to CURVES and trun flags into bit flags.
Allow only Brainpool curves in CO_DE_VS mode.
--

As of now this compliance mode only restricts the set of algorithms
and curves which can be created.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-15 17:50:03 +01:00
Werner Koch
4bd12b571e
doc: Add comment to make clear that KBNODE is deprecated.
--

kbnode_t has replaced KBNODE for new code years ago, but that should
be documented.  No bulk changes please to keep git blame easy to read.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-15 16:29:08 +01:00
Werner Koch
8ea3b4c410
gpg: Use usual free semantics for packet structure free functions.
* g10/free-packet.c (free_attributes): Turn function into a nop for a
NULL arg.
(free_user_id): Ditto.
(free_compressed): Ditto.
(free_encrypted): Ditto.
(free_plaintext): Ditto.
(release_public_key_parts): Avoid extra check for NULL.
* g10/getkey.c (get_best_pubkey_byname): Ditto.
--

This change avoid surprises because it is common that function named
like free and taking a pointer also have similar semantics.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-15 16:24:09 +01:00
Justus Winter
12834e84ac g10: Optimize key iteration.
* g10/getkey.c (get_best_pubkey_byname): Use the node returned by
'getkey_next' instead of doing another lookup.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-15 15:38:09 +01:00
Justus Winter
d20107f6da g10: Fix memory leak.
* g10/getkey.c (finish_lookup): Clarify that we do not return a
reference.
(lookup): Clarify the relation between RET_KEYBLOCK and RET_FOUND_KEY.
Check arguments.  Actually release the node if it is not returned.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-15 15:38:09 +01:00
Justus Winter
1d03cc77e1 g10: Fix iteration over getkey results.
* g10/getkey.c (getkey_next): Fix invocation of 'lookup'.  If we want
to use RET_FOUND_KEY, RET_KEYBLOCK must be valid.

Fixes-commit: 8ea72a776a
Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-15 15:38:09 +01:00
Justus Winter
bd60742925 g10: Fix use-after-free.
* g10/getkey.c (pubkey_cmp): Make a copy of the user id.
(get_best_pubkey_byname): Free the user ids.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-15 15:38:09 +01:00
NIIBE Yutaka
1f7639ebbe g10: Fix memory leak.
* g10/keyedit.c (menu_adduid): Don't copy 'sig'.

--

Fixes-commit: 809d67e740
Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2016-11-15 21:10:51 +09:00
Werner Koch
f86b1a15ad
gpg: New option --compliance.
* g10/gpg.c (oCompliance): New.
(opts): Add "--compliance".
(parse_tofu_policy): Use a generic description string for "help".
(parse_compliance_option): New.
(main): Add option oCompliance.  Factor out code for compliance
setting to ...
(set_compliance_option): new.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-15 13:06:49 +01:00
Justus Winter
809d67e740 g10: Fix memory leak.
* g10/keyedit.c (menu_adduid): Deallocate 'sig'.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-15 11:46:40 +01:00
Justus Winter
2cd281c4de g10: Fix memory leak.
* g10/mainproc.c (check_sig_and_print): Free 'pk'.

Fixes-commit: 37e3c89725
Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-14 17:33:18 +01:00
Werner Koch
5d13581f47
gpg,sm: Add STATUS_ERROR keydb_search and keydb_add-resource.
* g10/keydb.c (keydb_add_resource): Make ANY_REGISTERED
file-global.  Write a STATUS_ERROR.
(maybe_create_keyring_or_box): Check for non-accessible but existant
file.
(keydb_search): Write a STATUS_ERROR if no keyring has been registered
but continue to return NOT_FOUND.
* sm/keydb.c (keydb_add_resource): Rename ANY_PUBLIC to ANY_REGISTERED
and make file-global.  Write a STATUS_ERROR.
(keydb_search): Write a STATUS_ERROR if no keyring has been registered
but continue to return NOT_FOUND.  Also add new arg CTRL and change
all callers to pass it down.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-10 17:07:28 +01:00
Werner Koch
088d955bd8
gpg: Improve error message for --quick-gen-key.
* g10/keygen.c (parse_algo_usage_expire): Use a different error
message for an unknown algorithm name.
--

GnuPG-bug-id: 2832
Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-10 12:18:33 +01:00
Justus Winter
5840353d8b g10: Fix crash.
* g10/getkey.c (get_best_pubkey_byname): If 'get_pubkey_byname' does
not return a getkey context, then it can return at most one key,
therefore there is nothing to rank.  Also, always initialize '*retctx'
to be on the safe side.

GnuPG-bug-id: 2828
Fixes: ab89164be0
Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-07 12:57:30 +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
2312a7f836
indent: Move comments inside the block.
--

This fixes a few

  if (foo)
    /* A comment
       with several
       lines.  */
    {
    }

Which has the problem that the block is visually not related to the
"if" and might thus falsely be considered a standalone block.

Also adds a asterisk on the left side of longer comments.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-04 14:52:08 +01:00
Werner Koch
c1ea0b577a
agent: Extend the PINENTRY_LAUNCHED inquiry and status.
* agent/call-pinentry.c (start_pinentry): Get flavor and version and
pass it to agent_inq_pinentry_launched.
* agent/command.c (agent_inq_pinentry_launched): Add arg EXTRA.
* g10/server.c (gpg_proxy_pinentry_notify): Print a new diagnostic.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-03 20:10:38 +01:00
Justus Winter
ab89164be0 g10: Improve and unify key selection for -r and --locate-keys.
* g10/getkey.c (struct pubkey_cmp_cookie): New type.
(key_is_ok, uid_is_ok, subkey_is_ok): New functions.
(pubkey_cmp): Likewise.
(get_best_pubkey_byname): Likewise.
* g10/keydb.h (get_best_pubkey_byname): New prototype.
* g10/keylist.c (locate_one): Use the new function.
* g10/pkclist.c (find_and_check_key): Likewise.
* tests/openpgp/Makefile.am (XTESTS): Add new test.
(TEST_FILES): Add new files.
* tests/openpgp/key-selection.scm: New file.
* tests/openpgp/key-selection/0.asc: Likewise.
* tests/openpgp/key-selection/1.asc: Likewise.
* tests/openpgp/key-selection/2.asc: Likewise.
* tests/openpgp/key-selection/3.asc: Likewise.
* tests/openpgp/key-selection/4.asc: Likewise.
--

When a name resembling a mail address is given to either --locate-keys
or --recipient, rank the search results and use only the most relevant
key.

This also lets us query which key will be used for encryption using
--locate-keys.  However, note that --locate-keys may also return keys
incapable of encryption, though it will prefer keys that have an
encryption subkey.

GnuPG-bug-id: 2359
Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-03 15:04:18 +01:00
Werner Koch
488b183811
common: Improve compare_string_versions.
* common/stringhelp.c: Include limits.h.
(compare_version_strings): Change semantics to behave like strcmp.
Include the patch lebel in the comparison.  Allow checking a single
version string.
* common/t-stringhelp.c (test_compare_version_strings): Adjust test
vectors and a few new vectors.
* g10/call-agent.c (warn_version_mismatch): Adjust to new sematics.
* g10/call-dirmngr.c (warn_version_mismatch): Ditto.
* sm/call-agent.c (warn_version_mismatch): Ditto.
* sm/call-dirmngr.c (warn_version_mismatch): Ditto.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-11-02 17:58:11 +01:00
Daniel Kahn Gillmor
68b59bbc42 Spelling: correct spelling of "passphrase".
There were several different variant spellings of "passphrase".  This
should fix them all for all English text.

I did notice that po/it.po contains multiple instances of
"passhprase", which also looks suspect to me, but i do not know
Italian, so i did not try to correct it.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-11-02 12:53:58 +01:00
Justus Winter
5d4f1408d0 g10,w32: Fix build on Windows.
* g10/tofu.c (begin_transaction): Use the new 'gnupg_usleep'.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-11-02 12:45:18 +01:00
Neal H. Walfield
7a634e48b1 g10: Avoid gratuitious SQLite aborts and starving writers.
* g10/tofu.c: Include <time.h>, <utime.h>, <fcntl.h> and <unistd.h>.
(tofu_dbs_s): Add fields want_lock_file and want_lock_file_ctime.
(begin_transaction): Only yield if DBS->WANT_LOCK_FILE_CTIME has
changed since we took the lock.  Don't use gpgrt_yield to yield, but
sleep for 100ms.  After taking the batch lock, update
DBS->WANT_LOCK_FILE_CTIME.  Also take the batch lock the first time we
take the real lock.  When taking the real lock, use immediate not
deferred mode to avoid gratuitious aborts.
(end_transaction): When dropping the outermost real lock, drop the
batch lock.
(busy_handler): New function.
(opendbs): Set the busy handler to it when opening the DB.  Initialize
CTRL->TOFU.DBS->WANT_LOCK_FILE.
(tofu_closedbs): Free DBS->WANT_LOCK_FILE.

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

By default, SQLite defers transactions until they are actually needed.
A consequence of this is that if we have two readers and both decide
to do a write, then one has to abort.  To avoid this problem, we can
make the outermost transaction an immediate transaction.  This has the
disadvantage that we only allow a single reader at a time, but at
least we don't have gratuitous aborts anymore.

A second problem is that SQLite apparently doesn't actually create a
queue of waiters.  The result is that doing a sched_yield between
dropping and retaking the batch transaction is not enough to allow the
other process to make progress.  Instead, we need to wait a
while (emperically: 100ms seems reasonable).  To avoid waiting when
there is no contention, we use a new file's timestamp to signal that
there is a waiter.
2016-10-30 19:10:42 -07:00
Neal H. Walfield
eec365a02b g10: Avoid reading in keys when possible.
* g10/tofu.c (build_conflict_set): If CONFLICT_SET contains a single
element, don't bother to check for cross sigs.  Add parameter PK.
Update callers.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-30 11:03:51 -07:00