* 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.
037f9de092