NAME

       OSSL_STORE_INFO, OSSL_STORE_INFO_get_type, OSSL_STORE_INFO_get0_NAME,
       OSSL_STORE_INFO_get0_NAME_description, OSSL_STORE_INFO_get0_PARAMS,
       OSSL_STORE_INFO_get0_PUBKEY, OSSL_STORE_INFO_get0_PKEY, OSSL_STORE_INFO_get0_CERT,
       OSSL_STORE_INFO_get0_CRL, OSSL_STORE_INFO_get1_NAME,
       OSSL_STORE_INFO_get1_NAME_description, OSSL_STORE_INFO_get1_PARAMS,
       OSSL_STORE_INFO_get1_PUBKEY, OSSL_STORE_INFO_get1_PKEY, OSSL_STORE_INFO_get1_CERT,
       OSSL_STORE_INFO_get1_CRL, OSSL_STORE_INFO_type_string, OSSL_STORE_INFO_free,
       OSSL_STORE_INFO_new_NAME, OSSL_STORE_INFO_set0_NAME_description,
       OSSL_STORE_INFO_new_PARAMS, OSSL_STORE_INFO_new_PUBKEY, OSSL_STORE_INFO_new_PKEY,
       OSSL_STORE_INFO_new_CERT, OSSL_STORE_INFO_new_CRL, OSSL_STORE_INFO_new,
       OSSL_STORE_INFO_get0_data - Functions to manipulate OSSL_STORE_INFO objects

SYNOPSIS

        #include <openssl/store.h>

        typedef struct ossl_store_info_st OSSL_STORE_INFO;

        int OSSL_STORE_INFO_get_type(const OSSL_STORE_INFO *store_info);
        const char *OSSL_STORE_INFO_get0_NAME(const OSSL_STORE_INFO *store_info);
        char *OSSL_STORE_INFO_get1_NAME(const OSSL_STORE_INFO *store_info);
        const char *OSSL_STORE_INFO_get0_NAME_description(const OSSL_STORE_INFO
                                                          *store_info);
        char *OSSL_STORE_INFO_get1_NAME_description(const OSSL_STORE_INFO *store_info);
        EVP_PKEY *OSSL_STORE_INFO_get0_PARAMS(const OSSL_STORE_INFO *store_info);
        EVP_PKEY *OSSL_STORE_INFO_get1_PARAMS(const OSSL_STORE_INFO *store_info);
        EVP_PKEY *OSSL_STORE_INFO_get0_PUBKEY(const OSSL_STORE_INFO *info);
        EVP_PKEY *OSSL_STORE_INFO_get1_PUBKEY(const OSSL_STORE_INFO *info);
        EVP_PKEY *OSSL_STORE_INFO_get0_PKEY(const OSSL_STORE_INFO *store_info);
        EVP_PKEY *OSSL_STORE_INFO_get1_PKEY(const OSSL_STORE_INFO *store_info);
        X509 *OSSL_STORE_INFO_get0_CERT(const OSSL_STORE_INFO *store_info);
        X509 *OSSL_STORE_INFO_get1_CERT(const OSSL_STORE_INFO *store_info);
        X509_CRL *OSSL_STORE_INFO_get0_CRL(const OSSL_STORE_INFO *store_info);
        X509_CRL *OSSL_STORE_INFO_get1_CRL(const OSSL_STORE_INFO *store_info);

        const char *OSSL_STORE_INFO_type_string(int type);

        void OSSL_STORE_INFO_free(OSSL_STORE_INFO *store_info);

        OSSL_STORE_INFO *OSSL_STORE_INFO_new_NAME(char *name);
        int OSSL_STORE_INFO_set0_NAME_description(OSSL_STORE_INFO *info, char *desc);
        OSSL_STORE_INFO *OSSL_STORE_INFO_new_PARAMS(DSA *dsa_params);
        OSSL_STORE_INFO *OSSL_STORE_INFO_new_PUBKEY(EVP_PKEY *pubkey);
        OSSL_STORE_INFO *OSSL_STORE_INFO_new_PKEY(EVP_PKEY *pkey);
        OSSL_STORE_INFO *OSSL_STORE_INFO_new_CERT(X509 *x509);
        OSSL_STORE_INFO *OSSL_STORE_INFO_new_CRL(X509_CRL *crl);

        OSSL_STORE_INFO *OSSL_STORE_INFO_new(int type, void *data);
        void *OSSL_STORE_INFO_get0_data(int type, const OSSL_STORE_INFO *info);

DESCRIPTION

       These functions are primarily useful for applications to retrieve supported objects from
       OSSL_STORE_INFO objects and for scheme specific loaders to create OSSL_STORE_INFO holders.

   Types
       OSSL_STORE_INFO is an opaque type that's just an intermediary holder for the objects that
       have been retrieved by OSSL_STORE_load() and similar functions.  Supported OpenSSL type
       object can be extracted using one of STORE_INFO_get0_<TYPE>() where <TYPE> can be NAME,
       PARAMS, PKEY, CERT, or CRL.  The life time of this extracted object is as long as the life
       time of the OSSL_STORE_INFO it was extracted from, so care should be taken not to free the
       latter too early.  As an alternative, STORE_INFO_get1_<TYPE>() extracts a duplicate (or
       the same object with its reference count increased), which can be used after the
       containing OSSL_STORE_INFO has been freed.  The object returned by
       STORE_INFO_get1_<TYPE>() must be freed separately by the caller.  See "SUPPORTED OBJECTS"
       for more information on the types that are supported.

   Functions
       OSSL_STORE_INFO_get_type() takes a OSSL_STORE_INFO and returns the STORE type number for
       the object inside.

       STORE_INFO_get_type_string() takes a STORE type number and returns a short string
       describing it.

       OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(),
       OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PUBKEY(), OSSL_STORE_INFO_get0_PKEY(),
       OSSL_STORE_INFO_get0_CERT(), OSSL_STORE_INFO_get0_CRL() all take a OSSL_STORE_INFO and
       return the object it holds if the OSSL_STORE_INFO type (as returned by
       OSSL_STORE_INFO_get_type()) matches the function, otherwise NULL.

       OSSL_STORE_INFO_get1_NAME(), OSSL_STORE_INFO_get1_NAME_description(),
       OSSL_STORE_INFO_get1_PARAMS(), OSSL_STORE_INFO_get1_PUBKEY(), OSSL_STORE_INFO_get1_PKEY(),
       OSSL_STORE_INFO_get1_CERT() and OSSL_STORE_INFO_get1_CRL() all take a OSSL_STORE_INFO and
       return a duplicate the object it holds if the OSSL_STORE_INFO type (as returned by
       OSSL_STORE_INFO_get_type()) matches the function, otherwise NULL.

       OSSL_STORE_INFO_free() frees a OSSL_STORE_INFO and its contained type.

       OSSL_STORE_INFO_new_NAME() , OSSL_STORE_INFO_new_PARAMS(), , OSSL_STORE_INFO_new_PUBKEY(),
       OSSL_STORE_INFO_new_PKEY(), OSSL_STORE_INFO_new_CERT() and OSSL_STORE_INFO_new_CRL()
       create a OSSL_STORE_INFO object to hold the given input object.  On success the input
       object is consumed.

       Additionally, for OSSL_STORE_INFO_NAME objects, OSSL_STORE_INFO_set0_NAME_description()
       can be used to add an extra description.  This description is meant to be human readable
       and should be used for information printout.

       OSSL_STORE_INFO_new() creates a OSSL_STORE_INFO with an arbitrary type number and data
       structure.  It's the responsibility of the caller to define type numbers other than the
       ones defined by <openssl/store.h>, and to handle freeing the associated data structure on
       their own.  Using type numbers that are defined by <openssl/store.h> may cause undefined
       behaviours, including crashes.

       OSSL_STORE_INFO_get0_data() returns the data pointer that was passed to
       OSSL_STORE_INFO_new() if type matches the type number in info.

       OSSL_STORE_INFO_new() and OSSL_STORE_INFO_get0_data() may be useful for applications that
       define their own STORE data, but must be used with care.

SUPPORTED OBJECTS

       Currently supported object types are:

       OSSL_STORE_INFO_NAME
           A name is exactly that, a name.  It's like a name in a directory, but formatted as a
           complete URI.  For example, the path in URI "file:/foo/bar/" could include a file
           named "cookie.pem", and in that case, the returned OSSL_STORE_INFO_NAME object would
           have the URI "file:/foo/bar/cookie.pem", which can be used by the application to get
           the objects in that file.  This can be applied to all schemes that can somehow support
           a listing of object URIs.

           For "file:" URIs that are used without the explicit scheme, the returned name will be
           the path of each object, so if "/foo/bar" was given and that path has the file
           "cookie.pem", the name "/foo/bar/cookie.pem" will be returned.

           The returned URI is considered canonical and must be unique and permanent for the
           storage where the object (or collection of objects) resides.  Each loader is
           responsible for ensuring that it only returns canonical URIs.  However, it's possible
           that certain schemes allow an object (or collection thereof) to be reached with
           alternative URIs; just because one URI is canonical doesn't mean that other variants
           can't be used.

           At the discretion of the loader that was used to get these names, an extra description
           may be attached as well.

       OSSL_STORE_INFO_PARAMS
           Key parameters.

       OSSL_STORE_INFO_PKEY
           A keypair or just a private key (possibly with key parameters).

       OSSL_STORE_INFO_PUBKEY
           A public key (possibly with key parameters).

       OSSL_STORE_INFO_CERT
           An X.509 certificate.

       OSSL_STORE_INFO_CRL
           A X.509 certificate revocation list.

RETURN VALUES

       OSSL_STORE_INFO_get_type() returns the STORE type number of the given OSSL_STORE_INFO.
       There is no error value.

       OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(),
       OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PKEY(), OSSL_STORE_INFO_get0_CERT()
       and OSSL_STORE_INFO_get0_CRL() all return a pointer to the OpenSSL object on success, NULL
       otherwise.

       OSSL_STORE_INFO_get1_NAME(), OSSL_STORE_INFO_get1_NAME_description(),
       OSSL_STORE_INFO_get1_PARAMS(), OSSL_STORE_INFO_get1_PKEY(), OSSL_STORE_INFO_get1_CERT()
       and OSSL_STORE_INFO_get1_CRL() all return a pointer to a duplicate of the OpenSSL object
       on success, NULL otherwise.

       OSSL_STORE_INFO_type_string() returns a string on success, or NULL on failure.

       OSSL_STORE_INFO_new_NAME(), OSSL_STORE_INFO_new_PARAMS(), OSSL_STORE_INFO_new_PKEY(),
       OSSL_STORE_INFO_new_CERT() and OSSL_STORE_INFO_new_CRL() return a OSSL_STORE_INFO pointer
       on success, or NULL on failure.

       OSSL_STORE_INFO_set0_NAME_description() returns 1 on success, or 0 on failure.

SEE ALSO

       ossl_store(7), OSSL_STORE_open(3), OSSL_STORE_register_loader(3)

HISTORY

       The OSSL_STORE API was added in OpenSSL 1.1.1.

       The OSSL_STORE_INFO_PUBKEY object type was added in OpenSSL 3.0.

COPYRIGHT

       Copyright 2016-2021 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 <https://www.openssl.org/source/license.html>.