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freebsd/crypto/openssl/doc/man7/ossl_store-file.pod
Pierre Pronchery b077aed33b Merge OpenSSL 3.0.9
Migrate to OpenSSL 3.0 in advance of FreeBSD 14.0.  OpenSSL 1.1.1 (the
version we were previously using) will be EOL as of 2023-09-11.

Most of the base system has already been updated for a seamless switch
to OpenSSL 3.0.  For many components we've added
`-DOPENSSL_API_COMPAT=0x10100000L` to CFLAGS to specify the API version,
which avoids deprecation warnings from OpenSSL 3.0.  Changes have also
been made to avoid OpenSSL APIs that were already deprecated in OpenSSL
1.1.1.  The process of updating to contemporary APIs can continue after
this merge.

Additional changes are still required for libarchive and Kerberos-
related libraries or tools; workarounds will immediately follow this
commit.  Fixes are in progress in the upstream projects and will be
incorporated when those are next updated.

There are some performance regressions in benchmarks (certain tests in
`openssl speed`) and in some OpenSSL consumers in ports (e.g.  haproxy).
Investigation will continue for these.

Netflix's testing showed no functional regression and a rather small,
albeit statistically significant, increase in CPU consumption with
OpenSSL 3.0.

Thanks to ngie@ and des@ for updating base system components, to
antoine@ and bofh@ for ports exp-runs and port fixes/workarounds, and to
Netflix and everyone who tested prior to commit or contributed to this
update in other ways.

PR:		271615
PR:		271656 [exp-run]
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation
2023-06-23 18:53:36 -04:00

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=pod
=begin comment
This is a recommended way to describe OSSL_STORE loaders,
"ossl_store-{name}", where {name} is replaced with the name of the
scheme it implements, in man section 7.
=end comment
=head1 NAME
ossl_store-file - The store 'file' scheme loader
=head1 SYNOPSIS
=for openssl generic
#include <openssl/store.h>
=head1 DESCRIPTION
Support for the 'file' scheme is built into C<libcrypto>.
Since files come in all kinds of formats and content types, the 'file'
scheme has its own layer of functionality called "file handlers",
which are used to try to decode diverse types of file contents.
In case a file is formatted as PEM, each called file handler receives
the PEM name (everything following any 'C<-----BEGIN >') as well as
possible PEM headers, together with the decoded PEM body. Since PEM
formatted files can contain more than one object, the file handlers
are called upon for each such object.
If the file isn't determined to be formatted as PEM, the content is
loaded in raw form in its entirety and passed to the available file
handlers as is, with no PEM name or headers.
Each file handler is expected to handle PEM and non-PEM content as
appropriate. Some may refuse non-PEM content for the sake of
determinism (for example, there are keys out in the wild that are
represented as an ASN.1 OCTET STRING. In raw form, it's not easily
possible to distinguish those from any other data coming as an ASN.1
OCTET STRING, so such keys would naturally be accepted as PEM files
only).
=head1 NOTES
When needed, the 'file' scheme loader will require a pass phrase by
using the B<UI_METHOD> that was passed via OSSL_STORE_open().
This pass phrase is expected to be UTF-8 encoded, anything else will
give an undefined result.
The files made accessible through this loader are expected to be
standard compliant with regards to pass phrase encoding.
Files that aren't should be re-generated with a correctly encoded pass
phrase.
See L<passphrase-encoding(7)> for more information.
=head1 SEE ALSO
L<ossl_store(7)>, L<passphrase-encoding(7)>
=head1 COPYRIGHT
Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut