freebsd-src/crypto/openssl/doc/man3/OCSP_REQUEST_new.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
=head1 NAME
OCSP_REQUEST_new, OCSP_REQUEST_free, OCSP_request_add0_id, OCSP_request_sign,
OCSP_request_add1_cert, OCSP_request_onereq_count,
OCSP_request_onereq_get0 - OCSP request functions
=head1 SYNOPSIS
#include <openssl/ocsp.h>
OCSP_REQUEST *OCSP_REQUEST_new(void);
void OCSP_REQUEST_free(OCSP_REQUEST *req);
OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid);
int OCSP_request_sign(OCSP_REQUEST *req,
X509 *signer, EVP_PKEY *key, const EVP_MD *dgst,
STACK_OF(X509) *certs, unsigned long flags);
int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert);
int OCSP_request_onereq_count(OCSP_REQUEST *req);
OCSP_ONEREQ *OCSP_request_onereq_get0(OCSP_REQUEST *req, int i);
=head1 DESCRIPTION
OCSP_REQUEST_new() allocates and returns an empty B<OCSP_REQUEST> structure.
OCSP_REQUEST_free() frees up the request structure B<req>.
OCSP_request_add0_id() adds certificate ID B<cid> to B<req>. It returns
the B<OCSP_ONEREQ> structure added so an application can add additional
extensions to the request. The B<id> parameter B<MUST NOT> be freed up after
the operation.
OCSP_request_sign() signs OCSP request B<req> using certificate
B<signer>, private key B<key>, digest B<dgst> and additional certificates
B<certs>. If the B<flags> option B<OCSP_NOCERTS> is set then no certificates
will be included in the request.
OCSP_request_add1_cert() adds certificate B<cert> to request B<req>. The
application is responsible for freeing up B<cert> after use.
OCSP_request_onereq_count() returns the total number of B<OCSP_ONEREQ>
structures in B<req>.
OCSP_request_onereq_get0() returns an internal pointer to the B<OCSP_ONEREQ>
contained in B<req> of index B<i>. The index value B<i> runs from 0 to
OCSP_request_onereq_count(req) - 1.
=head1 RETURN VALUES
OCSP_REQUEST_new() returns an empty B<OCSP_REQUEST> structure or B<NULL> if
an error occurred.
OCSP_request_add0_id() returns the B<OCSP_ONEREQ> structure containing B<cid>
or B<NULL> if an error occurred.
OCSP_request_sign() and OCSP_request_add1_cert() return 1 for success and 0
for failure.
OCSP_request_onereq_count() returns the total number of B<OCSP_ONEREQ>
structures in B<req> and -1 on error.
OCSP_request_onereq_get0() returns a pointer to an B<OCSP_ONEREQ> structure
or B<NULL> if the index value is out or range.
=head1 NOTES
An OCSP request structure contains one or more B<OCSP_ONEREQ> structures
corresponding to each certificate.
OCSP_request_onereq_count() and OCSP_request_onereq_get0() are mainly used by
OCSP responders.
=head1 EXAMPLES
Create an B<OCSP_REQUEST> structure for certificate B<cert> with issuer
B<issuer>:
OCSP_REQUEST *req;
OCSP_ID *cid;
req = OCSP_REQUEST_new();
if (req == NULL)
/* error */
cid = OCSP_cert_to_id(EVP_sha1(), cert, issuer);
if (cid == NULL)
/* error */
if (OCSP_REQUEST_add0_id(req, cid) == NULL)
/* error */
/* Do something with req, e.g. query responder */
OCSP_REQUEST_free(req);
=head1 SEE ALSO
L<crypto(7)>,
L<OCSP_cert_to_id(3)>,
L<OCSP_request_add1_nonce(3)>,
L<OCSP_resp_find_status(3)>,
L<OCSP_response_status(3)>,
L<OCSP_sendreq_new(3)>
=head1 COPYRIGHT
Copyright 2015-2016 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