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Commit Graph

121 Commits

Author SHA1 Message Date
Neal H. Walfield
614ca00676 g10: Fix bit setting.
* g10/tofu.c (build_conflict_set): Fix bit setting.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
Fixes-commit: 1f1f56e606
2016-10-30 10:55:58 -07:00
Neal H. Walfield
95d0f3e5ee g10: Be more careful when checking if a binding is signed by a UTK.
* g10/tofu.c (signed_by_utk): When checking if a key is signed by an
ultimately trusted key, only consider the signatures on the specified
user id.
* tests/openpgp/tofu.scm: Add test for the above.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-13 21:14:55 +02:00
Neal H. Walfield
4c0389f8eb g10: Be more careful when checking cross signatures.
* g10/tofu.c (cross_sigs): When checking cross signatures, only
consider the signatures on the specified user id.
* tests/openpgp/tofu.scm: Add test for the above.
* tests/openpgp/tofu/cross-sigs/
  1938C3A0E4674B6C217AC0B987DB2814EC38277E-1.gpg:
  New file.
* tests/openpgp/tofu/cross-sigs/
  1938C3A0E4674B6C217AC0B987DB2814EC38277E-1.txt: New file.
* tests/openpgp/tofu/cross-sigs/
  1938C3A0E4674B6C217AC0B987DB2814EC38277E-2.gpg: New file.
* tests/openpgp/tofu/cross-sigs/
  1938C3A0E4674B6C217AC0B987DB2814EC38277E-2.txt: New file.
* tests/openpgp/tofu/cross-sigs/
  1938C3A0E4674B6C217AC0B987DB2814EC38277E-3.txt: New file.
* tests/openpgp/tofu/cross-sigs/
  1938C3A0E4674B6C217AC0B987DB2814EC38277E-secret.gpg: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-1.gpg: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-1.txt: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-2.gpg: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-2.txt: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-3.gpg: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-3.txt: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-4.gpg: New file.
* tests/openpgp/tofu/cross-sigs/
  DC463A16E42F03240D76E8BA8B48C6BD871C2247-secret.gpg: New file.
* tests/openpgp/tofu/cross-sigs/README: New file.

--
Signed-off-by: Neal H. Walfield
2016-10-13 12:44:59 +02:00
Neal H. Walfield
e09166c772 g10: Still check if the key is an UTK or cross signed in batch mode.
* g10/tofu.c (get_trust): If POLICY is ask, but we can't ask, don't
bail immediately.  Instead, check if the key in question is an
ultimately trusted key or cross signed.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-13 12:40:03 +02:00
Neal H. Walfield
5bf92e51df g10: If an sqlite operation fails, map the error code to GPG_ERR_GENERAL
* g10/tofu.c (get_policy): If an sqlite operation fails, map the error
  code to GPG_ERR_GENERAL.
(ask_about_binding): Likewise.
(build_conflict_set): Likewise.
(get_trust): Likewise.
(show_statistics): Likewise.
(tofu_register_signature): Likewise.
(tofu_register_encryption): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-13 12:32:03 +02:00
Neal H. Walfield
3ad17e72fa g10: When changing a TOFU binding's policy, update the conflict info
* g10/tofu.c (record_binding): Take an additional argument, CONFLICT.
Set the binding's conflict accordingly.  Update callers.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-12 21:42:10 +02:00
Neal H. Walfield
ca84f65c7c g10: Make a singular string singular.
* g10/tofu.c (ask_about_binding): Make the singular string singular.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-12 21:40:03 +02:00
Neal H. Walfield
6fdf37f083 g10: Correctly determine whether a binding has a conflict.
* g10/tofu.c (build_conflict_set): A binding has a conflict is
conflict is *not* NULL, not if it is NULL.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-10-12 21:39:12 +02:00
Neal H. Walfield
78eda335fd g10: Fix a column's type in TOFU DB.
* g10/tofu.c (initdb): Change policy from a boolean to an integer.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
Reported-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>

Note: sqlite ignores type information so this change has no real
impact.
2016-10-12 21:37:34 +02:00
Werner Koch
1a24c67e20
Revert "g10: Fix singular term."
--

This reverts commit b0d2526bc4.

The number of format elements may not change in ngettext.  The entire
construct is anyway wrong because ngettext is passed a different value
than what is used in the printf.

We need to rework the use of most strings in tofu.c.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-10-07 08:06:13 +02:00
Justus Winter
b0d2526bc4 g10: Fix singular term.
* g10/tofu.c (ask_about_binding): Fix singular message.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-10-06 14:33:20 +02:00
Justus Winter
73000d1ce0 g10: Use appropriate variant of 'abs'.
* g10/tofu.c (ask_about_binding): Use 'labs' instead of 'abs'.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-10-06 14:32:10 +02:00
Justus Winter
086d219d96 g10: Fix memory leak.
* g10/tofu.c (build_conflict_set): Free 'kb_all'.

Signed-off-by: Justus Winter <justus@g10code.com>
2016-09-19 12:32:50 +02:00
Daniel Kahn Gillmor
0d67241e31 Fix more spelling
* NEWS, acinclude.m4, agent/command-ssh.c, agent/command.c,
  agent/gpg-agent.c, agent/keyformat.txt, agent/protect-tool.c,
  common/asshelp.c, common/b64enc.c, common/recsel.c, doc/DETAILS,
  doc/HACKING, doc/Notes, doc/TRANSLATE, doc/dirmngr.texi,
  doc/faq.org, doc/gpg-agent.texi, doc/gpg.texi, doc/gpgsm.texi,
  doc/instguide.texi, g10/armor.c, g10/gpg.c, g10/keyedit.c,
  g10/mainproc.c, g10/pkclist.c, g10/tofu.c, g13/sh-cmd.c,
  g13/sh-dmcrypt.c, kbx/keybox-init.c, m4/pkg.m4, sm/call-dirmngr.c,
  sm/gpgsm.c, tests/Makefile.am, tests/gpgscm/Manual.txt,
  tests/gpgscm/scheme.c, tests/openpgp/gpgv-forged-keyring.scm,
  tests/openpgp/multisig.test, tests/openpgp/verify.scm,
  tests/pkits/README, tools/applygnupgdefaults,
  tools/gpg-connect-agent.c, tools/mime-maker.c, tools/mime-parser.c:
  minor spelling cleanup.

Signed-off-by: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
2016-09-17 16:00:37 +09:00
Neal H. Walfield
6e930f0e40 g10: On failure, propagate the return code.
* g10/tofu.c (tofu_register_encryption): If get_trust fails, set RC.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-16 15:35:21 +02:00
Neal H. Walfield
3825847300 g10: Improve some comments and a string.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-16 15:35:20 +02:00
Neal H. Walfield
221b0bd0e5 g10: Don't ignore failure. On failure, rollback.
* g10/tofu.c (tofu_set_policy): If record_binding fails, fail.  If the
function fails, rollback the transaction.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-16 15:35:20 +02:00
Neal H. Walfield
c2e563421e g10: Load the key block if the supplied user id list is NULL.
* g10/tofu.c (tofu_register_encryption): Load the key block if
USER_ID_LIST is NULL.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-16 15:35:19 +02:00
Neal H. Walfield
af196342bf g10: Use the accessor functions for accessing and comparing key ids
* g10/tofu.c (get_trust): Use the pk_main_keyid accessor function.
(tofu_register_signature): Likewise.
(tofu_register_encryption): Likewise.
(tofu_set_policy): Likewise and also use pk_keyid and keyid_cmp.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-16 15:35:18 +02:00
Neal H. Walfield
9799b5d18f g10: Fix whitespace.
* g10/tofu.c (show_statistics): Fix whitespace.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-14 15:22:11 +02:00
Neal H. Walfield
05b2b13efd g10: Correctly compute the euclidean distance.
* g10/tofu.c (write_stats_status): Correctly compute the euclidean
distance.
(show_statistics): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-14 15:22:10 +02:00
Neal H. Walfield
ca91caabb5 g10: Change the default TOFU policy for UTKs to good.
* g10/tofu.c (get_trust): Change the default TOFU policy for UTKs to
good.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-14 15:22:09 +02:00
Neal H. Walfield
9d62b79e62 g10: Add missing static qualifier.
* g10/tofu.c (cross_sigs): Add missing static qualifier.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-14 15:22:09 +02:00
Neal H. Walfield
8df8aa13c7 g10: Default to the "good" TOFU policy for keys signed by a UTK.
* g10/tofu.c (signed_by_utk): New function.
(get_trust): If a key is signed by an ultimately trusted key, then
set any bindings to good.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-14 15:22:08 +02:00
Neal H. Walfield
bde29a46ce g10: Use the time a signature was seen, not the embedded time, for stats
* g10/tofu.c (ask_about_binding): Use the time that a signature was
seen, not allegedly generated, when generating statistics.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-07 11:17:47 +02:00
Neal H. Walfield
ee06b3f788 g10: Check for a new binding a bit later.
* g10/tofu.c (build_conflict_set): Check for the current key after
looking for conflicts and removing any '!'.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
Fixes-commit: 1f1f56e6
2016-09-07 10:53:28 +02:00
Neal H. Walfield
7b3e8572e3 g10: Change TOFU code to respect --faked-system-time.
* g10/tofu.c (record_binding): New parameter now.  Update callers.
Don't use SQLite's strftime('%s','now') to get the current time, use
NOW.
(ask_about_binding): Likewise.
(get_trust): New parameter now.  Update callers.
(show_statistics): Likewise.
(tofu_register_signature): Don't use SQLite's strftime('%s','now') to
get the current time, use gnupg_get_time().
(tofu_register_encryption): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-07 10:28:39 +02:00
Neal H. Walfield
56c18408d4 g10: Use the correct conversion function.
* g10/tofu.c (show_statistics): Use string_to_ulong, not
string_to_long.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
Fixes-commit: 875ac921
2016-09-07 10:06:58 +02:00
Neal H. Walfield
1f90d3c71e g10: Add missing sqrtu32.h and sqrtu32.c.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
Fixes-commit: 875ac92.
2016-09-07 08:55:17 +02:00
Werner Koch
97a67d42dc
gpg: Fix format string issues in tofu.
* g10/tofu.c (write_stats_status): Use ulong for MESSSAGES.  Fix
format strings.  Simplify by using the new write_status_printf.

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-09-07 08:41:48 +02:00
Werner Koch
c894fa8d37
g10: Temporary hack to repalce missing sqrtu32.
--

Signed-off-by: Werner Koch <wk@gnupg.org>
2016-09-07 08:40:18 +02:00
Neal H. Walfield
13ddc17ddb g10: Make sure some functions are passed a primary key.
* g10/tofu.c (get_trust): Make sure the caller provides a primary key.
(tofu_register_signature): Likewise.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-06 22:40:59 +02:00
Neal H. Walfield
ee19eacd1d g10: Tweak TOFU's verbosity.
* g10/tofu.c (time_ago_str): Only show the most significant unit.
* g10/tofu.c (show_statistics): Tweak the output.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-06 22:40:01 +02:00
Neal H. Walfield
67cef405cb g10: Only show the TOFU warning once per key.
* g10/tofu.c (show_statistics): Return whether to call show_warning.
Move the warning from here...
(show_warning): ... to this new function.
(tofu_get_validity): If show_statistics returns a non-zero value, call
show_warning.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-06 22:10:57 +02:00
Neal H. Walfield
875ac9216f g10: Record and show statistics for encrypted messages when using TOFU
* g10/tofu.c: Include "sqrtu32.h".
(struct tofu_dbs_s.s): Rename get_trust_gather_other_keys to
get_trust_gather_signature_stats.  Add new field
get_trust_gather_encryption_stats.
(initdb): Create the encryptions table.
(ask_about_binding): Show the encryption statistics too.
(tofu_register): Rename from this...
(tofu_register_signature): ... to this and update callers.
(tofu_register_encryption): New function.
(write_stats_status): Add parameters encryption_count,
encryption_first_done and encryption_most_recent.  Update callers.
Compute the trust using the euclidean distance of the signature and
signature count.  Compare with twice the threshold.  Include
encryption count information in the TFS and TOFU_STATS lines.
(show_statistics): Also get information about the encrypted messages.
* g10/trustdb.c (tdb_get_validity_core): Use it.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-06 21:37:48 +02:00
Neal H. Walfield
a9e6db6c7e g10: Simplify the binding statistics shown for a TOFU conflict.
* g10/tofu.c (ask_about_binding): Simplify binding statistics.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-06 21:37:47 +02:00
Neal H. Walfield
1f1f56e606 g10: Refactor cross sig check code.
* g10/tofu.c (BINDING_NEW): New enum value.
(BINDING_CONFLICT): Likewise.
(BINDING_EXPIRED): Likewise.
(BINDING_REVOKED): Likewise.
(ask_about_binding): Move cross sig check from here...
(get_trust): ... and the conflict set building from here...
(build_conflict_set): ... to this new function.
(format_conflict_msg_part1): Replace parameter conflict with
conflict_set.  Drop parameter fingerprint.  Update callers.
(ask_about_binding): Drop unused parameter conflict and redundant
parameter bindings_with_this_email_count.  Rename parameter
bindings_with_this_email to conflict_set.  Update callers.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-05 15:14:27 +02:00
Neal H. Walfield
85fad6c34c g10: End transaction earlier.
* g10/tofu.c (ask_about_binding): End the transaction earlier.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-01 23:32:00 +02:00
Neal H. Walfield
b410a3cb76 g10: Don't consider cross-signed keys to be in conflict.
* g10/tofu.c (cross_sigs): New function.
(ask_about_binding): If apparently conflicting keys are cross signed,
then don't mark them as conflicting.

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

If two keys are cross signed, then the same person (probably)
controlled them both.  In this case, don't raise a TOFU conflict.
This usually occurs when someone transitions to a new key.  When that
person rotates to a third key, she will typically only cross sign it
with the second key.  As such, we check this transitively to avoid
declaring a conflict between the 1st and 3rd key.
2016-09-01 23:32:00 +02:00
Neal H. Walfield
44690befad g10: Fix typo.
--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-01 14:31:55 +02:00
Neal H. Walfield
3d44e5e8a8 g10: When asking about a TOFU binding conflict, default to unknown.
* g10/tofu.c (ask_about_binding): Default to unknown.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-01 14:31:31 +02:00
Neal H. Walfield
0cb0ea1633 g10: Improve text.
* g10/tofu.c (show_statistics): Improve the text (key and user id, not
just key).

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-01 13:17:54 +02:00
Neal H. Walfield
00c2850393 g10: Remove unused parameter.
* g10/tofu.c (show_statistics): Remove unused parameter sig_exclude.
Update callers.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-01 13:17:06 +02:00
Neal H. Walfield
4cbd2a690c g10: Be careful to not be in a transaction during long operations
* g10/tofu.c (begin_transaction): New parameter only_batch.  If set,
only start a batch transaction if there is none and one has been
requested.  Update callers.
(tofu_suspend_batch_transaction): New function.
(tofu_resume_batch_transaction): Likewise.
(ask_about_binding): Take a ctrl_t, not a tofu_dbs_t.  Update
callers.  Gather statistics within a transaction.  Suspend any batch
transaction when getting user input.
(get_trust): Take a ctrl_t, not a tofu_dbs_t.  Update callers.
Enclose in a transaction.
(tofu_get_validity): Use a batch transaction, not a normal
transaction.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-09-01 12:43:34 +02:00
Neal H. Walfield
edfb6934ca g10: On a TOFU conflict, show whether the uids are expired or revoked
* g10/tofu.c (struct signature_stats): Add fields is_expired and
is_revoked.
(signature_stats_prepend): Clear *stats when allocating it.
(ask_about_binding): Also show whether the user ids are expired or
revoked.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-08-31 17:52:50 +02:00
Neal H. Walfield
28c235ae75 g10: Always trust ultimately trusted keys.
* g10/tofu.c (get_trust): Always return TRUST_ULTIMATE for ultimately
trusted keys.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-08-31 13:53:36 +02:00
Neal H. Walfield
5b48960a8a g10: Fix error detection.
* g10/tofu.c: first_seen == 0 is not an error.

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

Fixes-commit: 0f1f02ac
Regression-due-to: 45bb9a2a
2016-08-31 12:11:58 +02:00
Neal H. Walfield
e4d5e3cb0d g10: Update a key's TOFU policy in a transaction.
* g10/tofu.c (tofu_set_policy): Do the update in a transaction.
* g10/gpg.c (main): Do a TOFU policy update in a batch transaction.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-08-31 11:47:50 +02:00
Neal H. Walfield
247eef005c g10: Fix the show old policy functionality when changing a TOFU policy.
* g10/tofu.c (record_binding): Fix the show old policy functionality.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-08-31 11:39:35 +02:00
Neal H. Walfield
70df5a8fd7 g10: Drop unused argument.
* g10/tofu.c (begin_transaction): Remove unused option only_batch.

--
Signed-off-by: Neal H. Walfield <neal@g10code.com>
2016-08-31 10:58:18 +02:00