mirror of https://github.com/openssl/openssl
226 lines
9.0 KiB
Plaintext
226 lines
9.0 KiB
Plaintext
=pod
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=head1 NAME
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OSSL_STORE_INFO, OSSL_STORE_INFO_get_type, OSSL_STORE_INFO_get0_NAME,
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OSSL_STORE_INFO_get0_NAME_description,
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OSSL_STORE_INFO_get0_PARAMS, OSSL_STORE_INFO_get0_PUBKEY,
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OSSL_STORE_INFO_get0_PKEY, OSSL_STORE_INFO_get0_CERT, OSSL_STORE_INFO_get0_CRL,
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OSSL_STORE_INFO_get1_NAME, OSSL_STORE_INFO_get1_NAME_description,
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OSSL_STORE_INFO_get1_PARAMS, OSSL_STORE_INFO_get1_PUBKEY,
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OSSL_STORE_INFO_get1_PKEY, OSSL_STORE_INFO_get1_CERT, OSSL_STORE_INFO_get1_CRL,
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OSSL_STORE_INFO_type_string, OSSL_STORE_INFO_free,
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OSSL_STORE_INFO_new_NAME, OSSL_STORE_INFO_set0_NAME_description,
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OSSL_STORE_INFO_new_PARAMS, OSSL_STORE_INFO_new_PUBKEY,
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OSSL_STORE_INFO_new_PKEY, OSSL_STORE_INFO_new_CERT, OSSL_STORE_INFO_new_CRL,
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OSSL_STORE_INFO_new, OSSL_STORE_INFO_get0_data
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- Functions to manipulate OSSL_STORE_INFO objects
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=head1 SYNOPSIS
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#include <openssl/store.h>
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typedef struct ossl_store_info_st OSSL_STORE_INFO;
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int OSSL_STORE_INFO_get_type(const OSSL_STORE_INFO *store_info);
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const char *OSSL_STORE_INFO_get0_NAME(const OSSL_STORE_INFO *store_info);
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char *OSSL_STORE_INFO_get1_NAME(const OSSL_STORE_INFO *store_info);
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const char *OSSL_STORE_INFO_get0_NAME_description(const OSSL_STORE_INFO
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*store_info);
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char *OSSL_STORE_INFO_get1_NAME_description(const OSSL_STORE_INFO *store_info);
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EVP_PKEY *OSSL_STORE_INFO_get0_PARAMS(const OSSL_STORE_INFO *store_info);
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EVP_PKEY *OSSL_STORE_INFO_get1_PARAMS(const OSSL_STORE_INFO *store_info);
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EVP_PKEY *OSSL_STORE_INFO_get0_PUBKEY(const OSSL_STORE_INFO *info);
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EVP_PKEY *OSSL_STORE_INFO_get1_PUBKEY(const OSSL_STORE_INFO *info);
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EVP_PKEY *OSSL_STORE_INFO_get0_PKEY(const OSSL_STORE_INFO *store_info);
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EVP_PKEY *OSSL_STORE_INFO_get1_PKEY(const OSSL_STORE_INFO *store_info);
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X509 *OSSL_STORE_INFO_get0_CERT(const OSSL_STORE_INFO *store_info);
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X509 *OSSL_STORE_INFO_get1_CERT(const OSSL_STORE_INFO *store_info);
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X509_CRL *OSSL_STORE_INFO_get0_CRL(const OSSL_STORE_INFO *store_info);
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X509_CRL *OSSL_STORE_INFO_get1_CRL(const OSSL_STORE_INFO *store_info);
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const char *OSSL_STORE_INFO_type_string(int type);
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void OSSL_STORE_INFO_free(OSSL_STORE_INFO *store_info);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new_NAME(char *name);
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int OSSL_STORE_INFO_set0_NAME_description(OSSL_STORE_INFO *info, char *desc);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new_PARAMS(DSA *dsa_params);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new_PUBKEY(EVP_PKEY *pubkey);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new_PKEY(EVP_PKEY *pkey);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new_CERT(X509 *x509);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new_CRL(X509_CRL *crl);
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OSSL_STORE_INFO *OSSL_STORE_INFO_new(int type, void *data);
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void *OSSL_STORE_INFO_get0_data(int type, const OSSL_STORE_INFO *info);
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=head1 DESCRIPTION
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These functions are primarily useful for applications to retrieve
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supported objects from B<OSSL_STORE_INFO> objects and for scheme specific
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loaders to create B<OSSL_STORE_INFO> holders.
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=head2 Types
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B<OSSL_STORE_INFO> is an opaque type that's just an intermediary holder for
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the objects that have been retrieved by OSSL_STORE_load() and similar functions.
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Supported OpenSSL type object can be extracted using one of
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STORE_INFO_get0_<TYPE>() where <TYPE> can be NAME, PARAMS, PKEY, CERT, or CRL.
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The life time of this extracted object is as long as the life time of
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the B<OSSL_STORE_INFO> it was extracted from, so care should be taken not
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to free the latter too early.
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As an alternative, STORE_INFO_get1_<TYPE>() extracts a duplicate (or the
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same object with its reference count increased), which can be used
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after the containing B<OSSL_STORE_INFO> has been freed.
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The object returned by STORE_INFO_get1_<TYPE>() must be freed separately
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by the caller.
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See L</SUPPORTED OBJECTS> for more information on the types that are supported.
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=head2 Functions
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OSSL_STORE_INFO_get_type() takes a B<OSSL_STORE_INFO> and returns the STORE
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type number for the object inside.
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STORE_INFO_get_type_string() takes a STORE type number and returns a
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short string describing it.
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OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(),
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OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PUBKEY(),
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OSSL_STORE_INFO_get0_PKEY(), OSSL_STORE_INFO_get0_CERT(),
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OSSL_STORE_INFO_get0_CRL()
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all take a B<OSSL_STORE_INFO> and return the object it holds if the
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B<OSSL_STORE_INFO> type (as returned by OSSL_STORE_INFO_get_type())
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matches the function, otherwise NULL.
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OSSL_STORE_INFO_get1_NAME(), OSSL_STORE_INFO_get1_NAME_description(),
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OSSL_STORE_INFO_get1_PARAMS(), OSSL_STORE_INFO_get1_PUBKEY(),
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OSSL_STORE_INFO_get1_PKEY(), OSSL_STORE_INFO_get1_CERT() and
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OSSL_STORE_INFO_get1_CRL()
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all take a B<OSSL_STORE_INFO> and return a duplicate the object it
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holds if the B<OSSL_STORE_INFO> type (as returned by
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OSSL_STORE_INFO_get_type()) matches the function, otherwise NULL.
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OSSL_STORE_INFO_free() frees a B<OSSL_STORE_INFO> and its contained type.
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OSSL_STORE_INFO_new_NAME() , OSSL_STORE_INFO_new_PARAMS(),
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, OSSL_STORE_INFO_new_PUBKEY(), OSSL_STORE_INFO_new_PKEY(),
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OSSL_STORE_INFO_new_CERT() and OSSL_STORE_INFO_new_CRL()
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create a B<OSSL_STORE_INFO> object to hold the given input object.
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On success the input object is consumed.
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Additionally, for B<OSSL_STORE_INFO_NAME>` objects,
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OSSL_STORE_INFO_set0_NAME_description() can be used to add an extra
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description.
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This description is meant to be human readable and should be used for
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information printout.
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OSSL_STORE_INFO_new() creates a B<OSSL_STORE_INFO> with an arbitrary I<type>
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number and I<data> structure. It's the responsibility of the caller to
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define type numbers other than the ones defined by F<< <openssl/store.h> >>,
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and to handle freeing the associated data structure on their own.
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I<Using type numbers that are defined by F<< <openssl/store.h> >> may cause
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undefined behaviours, including crashes>.
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OSSL_STORE_INFO_get0_data() returns the data pointer that was passed to
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OSSL_STORE_INFO_new() if I<type> matches the type number in I<info>.
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OSSL_STORE_INFO_new() and OSSL_STORE_INFO_get0_data() may be useful for
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applications that define their own STORE data, but must be used with care.
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=head1 SUPPORTED OBJECTS
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Currently supported object types are:
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=over 4
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=item OSSL_STORE_INFO_NAME
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A name is exactly that, a name.
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It's like a name in a directory, but formatted as a complete URI.
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For example, the path in URI C<file:/foo/bar/> could include a file
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named C<cookie.pem>, and in that case, the returned B<OSSL_STORE_INFO_NAME>
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object would have the URI C<file:/foo/bar/cookie.pem>, which can be
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used by the application to get the objects in that file.
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This can be applied to all schemes that can somehow support a listing
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of object URIs.
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For C<file:> URIs that are used without the explicit scheme, the
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returned name will be the path of each object, so if C</foo/bar> was
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given and that path has the file C<cookie.pem>, the name
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C</foo/bar/cookie.pem> will be returned.
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The returned URI is considered canonical and must be unique and permanent
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for the storage where the object (or collection of objects) resides.
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Each loader is responsible for ensuring that it only returns canonical
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URIs.
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However, it's possible that certain schemes allow an object (or collection
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thereof) to be reached with alternative URIs; just because one URI is
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canonical doesn't mean that other variants can't be used.
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At the discretion of the loader that was used to get these names, an
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extra description may be attached as well.
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=item OSSL_STORE_INFO_PARAMS
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Key parameters.
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=item OSSL_STORE_INFO_PKEY
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A private/public key of some sort.
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=item OSSL_STORE_INFO_CERT
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An X.509 certificate.
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=item OSSL_STORE_INFO_CRL
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A X.509 certificate revocation list.
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=back
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=head1 RETURN VALUES
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OSSL_STORE_INFO_get_type() returns the STORE type number of the given
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B<OSSL_STORE_INFO>.
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There is no error value.
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OSSL_STORE_INFO_get0_NAME(), OSSL_STORE_INFO_get0_NAME_description(),
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OSSL_STORE_INFO_get0_PARAMS(), OSSL_STORE_INFO_get0_PKEY(),
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OSSL_STORE_INFO_get0_CERT() and OSSL_STORE_INFO_get0_CRL() all return
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a pointer to the OpenSSL object on success, NULL otherwise.
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OSSL_STORE_INFO_get1_NAME(), OSSL_STORE_INFO_get1_NAME_description(),
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OSSL_STORE_INFO_get1_PARAMS(), OSSL_STORE_INFO_get1_PKEY(),
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OSSL_STORE_INFO_get1_CERT() and OSSL_STORE_INFO_get1_CRL() all return
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a pointer to a duplicate of the OpenSSL object on success, NULL otherwise.
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OSSL_STORE_INFO_type_string() returns a string on success, or NULL on
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failure.
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OSSL_STORE_INFO_new_NAME(), OSSL_STORE_INFO_new_PARAMS(),
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OSSL_STORE_INFO_new_PKEY(), OSSL_STORE_INFO_new_CERT() and
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OSSL_STORE_INFO_new_CRL() return a B<OSSL_STORE_INFO>
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pointer on success, or NULL on failure.
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OSSL_STORE_INFO_set0_NAME_description() returns 1 on success, or 0 on
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failure.
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=head1 SEE ALSO
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L<ossl_store(7)>, L<OSSL_STORE_open(3)>, L<OSSL_STORE_register_loader(3)>
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=head1 HISTORY
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The OSSL_STORE API was added in OpenSSL 1.1.1.
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=head1 COPYRIGHT
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Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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