aboutsummaryrefslogtreecommitdiff
path: root/secure/lib/libcrypto/man/man3/OSSL_STORE_LOADER.3
diff options
context:
space:
mode:
Diffstat (limited to 'secure/lib/libcrypto/man/man3/OSSL_STORE_LOADER.3')
-rw-r--r--secure/lib/libcrypto/man/man3/OSSL_STORE_LOADER.3429
1 files changed, 429 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/man3/OSSL_STORE_LOADER.3 b/secure/lib/libcrypto/man/man3/OSSL_STORE_LOADER.3
new file mode 100644
index 000000000000..98c43ae18b58
--- /dev/null
+++ b/secure/lib/libcrypto/man/man3/OSSL_STORE_LOADER.3
@@ -0,0 +1,429 @@
+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.0102 (Pod::Simple 3.45)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
+..
+.de Vb \" Begin verbatim text
+.ft CW
+.nf
+.ne \\$1
+..
+.de Ve \" End verbatim text
+.ft R
+.fi
+..
+.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>.
+.ie n \{\
+. ds C` ""
+. ds C' ""
+'br\}
+.el\{\
+. ds C`
+. ds C'
+'br\}
+.\"
+.\" Escape single quotes in literal strings from groff's Unicode transform.
+.ie \n(.g .ds Aq \(aq
+.el .ds Aq '
+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD. Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
+.de IX
+..
+.nr rF 0
+.if \n(.g .if rF .nr rF 1
+.if (\n(rF:(\n(.g==0)) \{\
+. if \nF \{\
+. de IX
+. tm Index:\\$1\t\\n%\t"\\$2"
+..
+. if !\nF==2 \{\
+. nr % 0
+. nr F 2
+. \}
+. \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "OSSL_STORE_LOADER 3ossl"
+.TH OSSL_STORE_LOADER 3ossl 2025-09-30 3.5.4 OpenSSL
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+OSSL_STORE_LOADER,
+OSSL_STORE_LOADER_fetch,
+OSSL_STORE_LOADER_up_ref,
+OSSL_STORE_LOADER_free,
+OSSL_STORE_LOADER_get0_provider,
+OSSL_STORE_LOADER_get0_properties,
+OSSL_STORE_LOADER_is_a,
+OSSL_STORE_LOADER_get0_description,
+OSSL_STORE_LOADER_do_all_provided,
+OSSL_STORE_LOADER_names_do_all,
+OSSL_STORE_LOADER_CTX, OSSL_STORE_LOADER_new,
+OSSL_STORE_LOADER_get0_engine, OSSL_STORE_LOADER_get0_scheme,
+OSSL_STORE_LOADER_set_open, OSSL_STORE_LOADER_set_open_ex,
+OSSL_STORE_LOADER_set_attach, OSSL_STORE_LOADER_set_ctrl,
+OSSL_STORE_LOADER_set_expect, OSSL_STORE_LOADER_set_find,
+OSSL_STORE_LOADER_set_load, OSSL_STORE_LOADER_set_eof,
+OSSL_STORE_LOADER_set_error, OSSL_STORE_LOADER_set_close,
+OSSL_STORE_register_loader, OSSL_STORE_unregister_loader,
+OSSL_STORE_open_fn, OSSL_STORE_open_ex_fn,
+OSSL_STORE_attach_fn, OSSL_STORE_ctrl_fn,
+OSSL_STORE_expect_fn, OSSL_STORE_find_fn,
+OSSL_STORE_load_fn, OSSL_STORE_eof_fn, OSSL_STORE_error_fn,
+OSSL_STORE_close_fn \- Types and functions to manipulate, register and
+unregister STORE loaders for different URI schemes
+.SH SYNOPSIS
+.IX Header "SYNOPSIS"
+.Vb 1
+\& #include <openssl/store.h>
+\&
+\& typedef struct ossl_store_loader_st OSSL_STORE_LOADER;
+\&
+\& OSSL_STORE_LOADER *OSSL_STORE_LOADER_fetch(OSSL_LIB_CTX *libctx,
+\& const char *scheme,
+\& const char *properties);
+\& int OSSL_STORE_LOADER_up_ref(OSSL_STORE_LOADER *loader);
+\& void OSSL_STORE_LOADER_free(OSSL_STORE_LOADER *loader);
+\& const OSSL_PROVIDER *OSSL_STORE_LOADER_get0_provider(const OSSL_STORE_LOADER *
+\& loader);
+\& const char *OSSL_STORE_LOADER_get0_properties(const OSSL_STORE_LOADER *loader);
+\& const char *OSSL_STORE_LOADER_get0_description(const OSSL_STORE_LOADER *loader);
+\& int OSSL_STORE_LOADER_is_a(const OSSL_STORE_LOADER *loader,
+\& const char *scheme);
+\& void OSSL_STORE_LOADER_do_all_provided(OSSL_LIB_CTX *libctx,
+\& void (*user_fn)(OSSL_STORE_LOADER *loader,
+\& void *arg),
+\& void *user_arg);
+\& int OSSL_STORE_LOADER_names_do_all(const OSSL_STORE_LOADER *loader,
+\& void (*fn)(const char *name, void *data),
+\& void *data);
+.Ve
+.PP
+The following functions have been deprecated since OpenSSL 3.0, and can be
+hidden entirely by defining \fBOPENSSL_API_COMPAT\fR with a suitable version value,
+see \fBopenssl_user_macros\fR\|(7):
+.PP
+.Vb 5
+\& OSSL_STORE_LOADER *OSSL_STORE_LOADER_new(ENGINE *e, const char *scheme);
+\& const ENGINE *OSSL_STORE_LOADER_get0_engine(const OSSL_STORE_LOADER
+\& *store_loader);
+\& const char *OSSL_STORE_LOADER_get0_scheme(const OSSL_STORE_LOADER
+\& *store_loader);
+\&
+\& /* struct ossl_store_loader_ctx_st is defined differently by each loader */
+\& typedef struct ossl_store_loader_ctx_st OSSL_STORE_LOADER_CTX;
+\&
+\& typedef OSSL_STORE_LOADER_CTX *(*OSSL_STORE_open_fn)(
+\& const char *uri, const UI_METHOD *ui_method, void *ui_data);
+\& int OSSL_STORE_LOADER_set_open(OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_open_fn store_open_function);
+\& typedef OSSL_STORE_LOADER_CTX *(*OSSL_STORE_open_ex_fn)(
+\& const char *uri, const UI_METHOD *ui_method, void *ui_data);
+\& int OSSL_STORE_LOADER_set_open_ex
+\& (OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_open_ex_fn store_open_ex_function);
+\& typedef OSSL_STORE_LOADER_CTX *(*OSSL_STORE_attach_fn)
+\& (const OSSL_STORE_LOADER *loader, BIO *bio,
+\& OSSL_LIB_CTX *libctx, const char *propq,
+\& const UI_METHOD *ui_method, void *ui_data);
+\& int OSSL_STORE_LOADER_set_attach(OSSL_STORE_LOADER *loader,
+\& OSSL_STORE_attach_fn attach_function);
+\& typedef int (*OSSL_STORE_ctrl_fn)(OSSL_STORE_LOADER_CTX *ctx, int cmd,
+\& va_list args);
+\& int OSSL_STORE_LOADER_set_ctrl(OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_ctrl_fn store_ctrl_function);
+\& typedef int (*OSSL_STORE_expect_fn)(OSSL_STORE_LOADER_CTX *ctx, int expected);
+\& int OSSL_STORE_LOADER_set_expect(OSSL_STORE_LOADER *loader,
+\& OSSL_STORE_expect_fn expect_function);
+\& typedef int (*OSSL_STORE_find_fn)(OSSL_STORE_LOADER_CTX *ctx,
+\& OSSL_STORE_SEARCH *criteria);
+\& int OSSL_STORE_LOADER_set_find(OSSL_STORE_LOADER *loader,
+\& OSSL_STORE_find_fn find_function);
+\& typedef OSSL_STORE_INFO *(*OSSL_STORE_load_fn)(OSSL_STORE_LOADER_CTX *ctx,
+\& UI_METHOD *ui_method,
+\& void *ui_data);
+\& int OSSL_STORE_LOADER_set_load(OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_load_fn store_load_function);
+\& typedef int (*OSSL_STORE_eof_fn)(OSSL_STORE_LOADER_CTX *ctx);
+\& int OSSL_STORE_LOADER_set_eof(OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_eof_fn store_eof_function);
+\& typedef int (*OSSL_STORE_error_fn)(OSSL_STORE_LOADER_CTX *ctx);
+\& int OSSL_STORE_LOADER_set_error(OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_error_fn store_error_function);
+\& typedef int (*OSSL_STORE_close_fn)(OSSL_STORE_LOADER_CTX *ctx);
+\& int OSSL_STORE_LOADER_set_close(OSSL_STORE_LOADER *store_loader,
+\& OSSL_STORE_close_fn store_close_function);
+\&
+\& int OSSL_STORE_register_loader(OSSL_STORE_LOADER *loader);
+\& OSSL_STORE_LOADER *OSSL_STORE_unregister_loader(const char *scheme);
+.Ve
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+\&\fBOSSL_STORE_LOADER\fR is a method for OSSL_STORE loaders, which implement
+\&\fBOSSL_STORE_open()\fR, \fBOSSL_STORE_open_ex()\fR, \fBOSSL_STORE_load()\fR,
+\&\fBOSSL_STORE_eof()\fR, \fBOSSL_STORE_error()\fR and \fBOSSL_STORE_close()\fR for specific
+storage schemes.
+.PP
+\&\fBOSSL_STORE_LOADER_fetch()\fR looks for an implementation for a storage
+\&\fIscheme\fR within the providers that has been loaded into the \fBOSSL_LIB_CTX\fR
+given by \fIlibctx\fR, and with the properties given by \fIproperties\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_up_ref()\fR increments the reference count for the given
+\&\fIloader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_free()\fR decrements the reference count for the given
+\&\fIloader\fR, and when the count reaches zero, frees it.
+If the argument is NULL, nothing is done.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_provider()\fR returns the provider of the given
+\&\fIloader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_properties()\fR returns the property definition associated
+with the given \fIloader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_is_a()\fR checks if \fIloader\fR is an implementation
+of an algorithm that's identifiable with \fIscheme\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_description()\fR returns a description of the \fIloader\fR, meant
+for display and human consumption. The description is at the discretion of the
+\&\fIloader\fR implementation.
+.PP
+\&\fBOSSL_STORE_LOADER_do_all_provided()\fR traverses all store implementations
+by all activated providers in the library context \fIlibctx\fR, and for each
+of the implementations, calls \fIuser_fn\fR with the implementation method and
+\&\fIuser_arg\fR as arguments.
+.PP
+\&\fBOSSL_STORE_LOADER_names_do_all()\fR traverses all names for the given
+\&\fIloader\fR, and calls \fIfn\fR with each name and \fIdata\fR.
+.SS "Legacy Types and Functions (deprecated)"
+.IX Subsection "Legacy Types and Functions (deprecated)"
+These functions help applications and engines to create loaders for
+schemes they support. These are all deprecated and discouraged in favour of
+provider implementations, see \fBprovider\-storemgmt\fR\|(7).
+.PP
+\&\fBOSSL_STORE_LOADER_CTX\fR is a type template, to be defined by each loader
+using \f(CW\*(C`struct ossl_store_loader_ctx_st { ... }\*(C'\fR.
+.PP
+\&\fBOSSL_STORE_open_fn\fR, \fBOSSL_STORE_open_ex_fn\fR,
+\&\fBOSSL_STORE_ctrl_fn\fR, \fBOSSL_STORE_expect_fn\fR, \fBOSSL_STORE_find_fn\fR,
+\&\fBOSSL_STORE_load_fn\fR, \fBOSSL_STORE_eof_fn\fR, and \fBOSSL_STORE_close_fn\fR
+are the function pointer types used within a STORE loader.
+The functions pointed at define the functionality of the given loader.
+.IP "\fBOSSL_STORE_open_fn\fR and \fBOSSL_STORE_open_ex_fn\fR" 4
+.IX Item "OSSL_STORE_open_fn and OSSL_STORE_open_ex_fn"
+\&\fBOSSL_STORE_open_ex_fn\fR takes a URI and is expected to
+interpret it in the best manner possible according to the scheme the
+loader implements. It also takes a \fBUI_METHOD\fR and associated data,
+to be used any time something needs to be prompted for, as well as a
+library context \fIlibctx\fR with an associated property query \fIpropq\fR,
+to be used when fetching necessary algorithms to perform the loads.
+Furthermore, this function is expected to initialize what needs to be
+initialized, to create a private data store (\fBOSSL_STORE_LOADER_CTX\fR,
+see above), and to return it.
+If something goes wrong, this function is expected to return NULL.
+.Sp
+\&\fBOSSL_STORE_open_fn\fR does the same thing as
+\&\fBOSSL_STORE_open_ex_fn\fR but uses NULL for the library
+context \fIlibctx\fR and property query \fIpropq\fR.
+.IP \fBOSSL_STORE_attach_fn\fR 4
+.IX Item "OSSL_STORE_attach_fn"
+This function takes a \fBBIO\fR, otherwise works like
+\&\fBOSSL_STORE_open_ex_fn\fR.
+.IP \fBOSSL_STORE_ctrl_fn\fR 4
+.IX Item "OSSL_STORE_ctrl_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer, a command number
+\&\fIcmd\fR and a \fBva_list\fR \fIargs\fR and is used to manipulate loader
+specific parameters.
+.Sp
+Loader specific command numbers must begin at \fBOSSL_STORE_C_CUSTOM_START\fR.
+Any number below that is reserved for future globally known command
+numbers.
+.Sp
+This function is expected to return 1 on success, 0 on error.
+.IP \fBOSSL_STORE_expect_fn\fR 4
+.IX Item "OSSL_STORE_expect_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer and a \fBOSSL_STORE_INFO\fR
+identity \fIexpected\fR, and is used to tell the loader what object type is
+expected.
+\&\fIexpected\fR may be zero to signify that no specific object type is expected.
+.Sp
+This function is expected to return 1 on success, 0 on error.
+.IP \fBOSSL_STORE_find_fn\fR 4
+.IX Item "OSSL_STORE_find_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer and a
+\&\fBOSSL_STORE_SEARCH\fR search criterion, and is used to tell the loader what
+to search for.
+.Sp
+When called with the loader context being NULL, this function is expected
+to return 1 if the loader supports the criterion, otherwise 0.
+.Sp
+When called with the loader context being something other than NULL, this
+function is expected to return 1 on success, 0 on error.
+.IP \fBOSSL_STORE_load_fn\fR 4
+.IX Item "OSSL_STORE_load_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer and a \fBUI_METHOD\fR
+with associated data.
+It's expected to load the next available data, mold it into a data
+structure that can be wrapped in a \fBOSSL_STORE_INFO\fR using one of the
+\&\fBOSSL_STORE_INFO\fR\|(3) functions.
+If no more data is available or an error occurs, this function is
+expected to return NULL.
+The \fBOSSL_STORE_eof_fn\fR and \fBOSSL_STORE_error_fn\fR functions must indicate if
+it was in fact the end of data or if an error occurred.
+.Sp
+Note that this function retrieves \fIone\fR data item only.
+.IP \fBOSSL_STORE_eof_fn\fR 4
+.IX Item "OSSL_STORE_eof_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer and is expected to
+return 1 to indicate that the end of available data has been reached.
+It is otherwise expected to return 0.
+.IP \fBOSSL_STORE_error_fn\fR 4
+.IX Item "OSSL_STORE_error_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer and is expected to
+return 1 to indicate that an error occurred in a previous call to the
+\&\fBOSSL_STORE_load_fn\fR function.
+It is otherwise expected to return 0.
+.IP \fBOSSL_STORE_close_fn\fR 4
+.IX Item "OSSL_STORE_close_fn"
+This function takes a \fBOSSL_STORE_LOADER_CTX\fR pointer and is expected to
+close or shut down what needs to be closed, and finally free the
+contents of the \fBOSSL_STORE_LOADER_CTX\fR pointer.
+It returns 1 on success and 0 on error.
+.PP
+\&\fBOSSL_STORE_LOADER_new()\fR creates a new \fBOSSL_STORE_LOADER\fR.
+It takes an \fBENGINE\fR \fIe\fR and a string \fIscheme\fR.
+\&\fIscheme\fR must \fIalways\fR be set.
+Both \fIe\fR and \fIscheme\fR are used as is and must therefore be alive as
+long as the created loader is.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_engine()\fR returns the engine of the \fIstore_loader\fR.
+\&\fBOSSL_STORE_LOADER_get0_scheme()\fR returns the scheme of the \fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_open()\fR sets the opener function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_open_ex()\fR sets the opener with library context
+function for the \fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_attach()\fR sets the attacher function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_ctrl()\fR sets the control function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_expect()\fR sets the expect function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_load()\fR sets the loader function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_eof()\fR sets the end of file checker function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_set_close()\fR sets the closing function for the
+\&\fIstore_loader\fR.
+.PP
+\&\fBOSSL_STORE_LOADER_free()\fR frees the given \fIstore_loader\fR.
+If the argument is NULL, nothing is done.
+.PP
+\&\fBOSSL_STORE_register_loader()\fR register the given \fIstore_loader\fR and
+thereby makes it available for use with \fBOSSL_STORE_open()\fR,
+\&\fBOSSL_STORE_open_ex()\fR, \fBOSSL_STORE_load()\fR, \fBOSSL_STORE_eof()\fR
+and \fBOSSL_STORE_close()\fR.
+.PP
+\&\fBOSSL_STORE_unregister_loader()\fR unregister the store loader for the given
+\&\fIscheme\fR.
+.SH "RETURN VALUES"
+.IX Header "RETURN VALUES"
+\&\fBOSSL_STORE_LOADER_fetch()\fR returns a pointer to an OSSL_STORE_LOADER object,
+or NULL on error.
+.PP
+\&\fBOSSL_STORE_LOADER_up_ref()\fR returns 1 on success, or 0 on error.
+.PP
+\&\fBOSSL_STORE_LOADER_names_do_all()\fR returns 1 if the callback was called for all
+names. A return value of 0 means that the callback was not called for any names.
+.PP
+\&\fBOSSL_STORE_LOADER_free()\fR doesn't return any value.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_provider()\fR returns a pointer to a provider object, or
+NULL on error.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_properties()\fR returns a pointer to a property
+definition string, or NULL on error.
+.PP
+\&\fBOSSL_STORE_LOADER_is_a()\fR returns 1 if \fIloader\fR was identifiable,
+otherwise 0.
+.PP
+\&\fBOSSL_STORE_LOADER_get0_description()\fR returns a pointer to a description, or NULL if
+there isn't one.
+.PP
+The functions with the types \fBOSSL_STORE_open_fn\fR,
+\&\fBOSSL_STORE_open_ex_fn\fR, \fBOSSL_STORE_ctrl_fn\fR,
+\&\fBOSSL_STORE_expect_fn\fR, \fBOSSL_STORE_load_fn\fR, \fBOSSL_STORE_eof_fn\fR
+and \fBOSSL_STORE_close_fn\fR have the same return values as \fBOSSL_STORE_open()\fR,
+\&\fBOSSL_STORE_open_ex()\fR, \fBOSSL_STORE_ctrl()\fR, \fBOSSL_STORE_expect()\fR,
+\&\fBOSSL_STORE_load()\fR, \fBOSSL_STORE_eof()\fR and \fBOSSL_STORE_close()\fR, respectively.
+.PP
+\&\fBOSSL_STORE_LOADER_new()\fR returns a pointer to a \fBOSSL_STORE_LOADER\fR on success,
+or NULL on failure.
+.PP
+\&\fBOSSL_STORE_LOADER_set_open()\fR, \fBOSSL_STORE_LOADER_set_open_ex()\fR,
+\&\fBOSSL_STORE_LOADER_set_ctrl()\fR, \fBOSSL_STORE_LOADER_set_load()\fR,
+\&\fBOSSL_STORE_LOADER_set_eof()\fR and \fBOSSL_STORE_LOADER_set_close()\fR return 1
+on success, or 0 on failure.
+.PP
+\&\fBOSSL_STORE_register_loader()\fR returns 1 on success, or 0 on failure.
+.PP
+\&\fBOSSL_STORE_unregister_loader()\fR returns the unregistered loader on success,
+or NULL on failure.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+\&\fBossl_store\fR\|(7), \fBOSSL_STORE_open\fR\|(3), \fBOSSL_LIB_CTX\fR\|(3),
+\&\fBprovider\-storemgmt\fR\|(7)
+.SH HISTORY
+.IX Header "HISTORY"
+\&\fBOSSL_STORE_LOADER_fetch()\fR, \fBOSSL_STORE_LOADER_up_ref()\fR,
+\&\fBOSSL_STORE_LOADER_get0_provider()\fR, \fBOSSL_STORE_LOADER_get0_properties()\fR,
+\&\fBOSSL_STORE_LOADER_get0_description()\fR, \fBOSSL_STORE_LOADER_is_a()\fR,
+\&\fBOSSL_STORE_LOADER_do_all_provided()\fR and \fBOSSL_STORE_LOADER_names_do_all()\fR
+were added in OpenSSL 3.0.
+.PP
+\&\fBOSSL_STORE_LOADER\fR and \fBOSSL_STORE_LOADER_free()\fR were added in OpenSSL
+1.1.1.
+.PP
+\&\fBOSSL_STORE_LOADER_set_open_ex()\fR and \fBOSSL_STORE_open_ex_fn()\fR were added in
+OpenSSL 3.0, and are deprecated.
+.PP
+\&\fBOSSL_STORE_LOADER_CTX\fR, \fBOSSL_STORE_LOADER_new()\fR,
+\&\fBOSSL_STORE_LOADER_set0_scheme()\fR, \fBOSSL_STORE_LOADER_get0_scheme()\fR,
+\&\fBOSSL_STORE_LOADER_get0_engine()\fR, \fBOSSL_STORE_LOADER_set_expect()\fR,
+\&\fBOSSL_STORE_LOADER_set_find()\fR, \fBOSSL_STORE_LOADER_set_attach()\fR,
+\&\fBOSSL_STORE_LOADER_set_open_ex()\fR, \fBOSSL_STORE_LOADER_set_open()\fR,
+\&\fBOSSL_STORE_LOADER_set_ctrl()\fR,
+\&\fBOSSL_STORE_LOADER_set_load()\fR, \fBOSSL_STORE_LOADER_set_eof()\fR,
+\&\fBOSSL_STORE_LOADER_set_close()\fR,
+\&\fBOSSL_STORE_register_loader()\fR, \fBOSSL_STORE_LOADER_set_error()\fR,
+\&\fBOSSL_STORE_unregister_loader()\fR, \fBOSSL_STORE_open_fn()\fR, \fBOSSL_STORE_ctrl_fn()\fR,
+\&\fBOSSL_STORE_load_fn()\fR, \fBOSSL_STORE_eof_fn()\fR and \fBOSSL_STORE_close_fn()\fR
+were added in OpenSSL 1.1.1, and became deprecated in OpenSSL 3.0.
+.SH COPYRIGHT
+.IX Header "COPYRIGHT"
+Copyright 2016\-2024 The OpenSSL Project Authors. All Rights Reserved.
+.PP
+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>.