The vectx API, computes the hash for verifying a file as it is read.
This avoids the overhead of reading files twice - once to verify, then
again to load.
For doing an install via loader, avoiding the need to rewind
large files is critical.
This API is only used for modules, kernel and mdimage as these are the
biggest files read by the loader.
The reduction in boot time depends on how expensive the I/O is
on any given platform. On a fast VM we see 6% improvement.
For install via loader the first file to be verified is likely to be the
kernel, so some of the prep work (finding manifest etc) done by
verify_file() needs to be factored so it can be reused for
vectx_open().
For missing or unrecognized fingerprint entries, we fail
in vectx_open() unless verifying is disabled.
Otherwise fingerprint check happens in vectx_close() and
since this API is only used for files which must be verified
(VE_MUST) we panic if we get an incorrect hash.
Reviewed by: imp,tsoome
MFC after: 1 week
Sponsored by: Juniper Networks
Differential Revision: https://reviews.freebsd.org//D23827
Since we can now add OpenPGP trust anchors at runtime,
ensure the latent support is available.
Ensure we do not add duplicate keys to trust store.
Also allow reporting names of trust anchors added/revoked
We only do this for loader and only after initializing trust store.
Thus only changes to initial trust store will be logged.
Reviewed by: stevek
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D20700
During boot we only want to measure things which *must*
be verified - this should provide more deterministic ordering.
Reviewed by: stevek
MFC after: 1 week
Sponsored by: Juniper Networks
Differential Revision: https://reviews.freebsd.org/D20297
sbin/veriexec will ignore entries that have no hash anyway,
but loader needs to be explicitly told that such files are
ok to ignore (not verify).
We will report as Unverified depending on verbose level,
but with no reason - because we are not rejecting the file.
Reviewed by: imp, mindal_semihalf
Sponsored by: Juniper Networks
MFC After: 1 week
Differential Revision: https://reviews.freebsd.org//D20018
