From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Fri, 30 Apr 2021 00:33:56 +0200 Subject: initial/final commit --- openssl-1.1.0h/crypto/dso/dso_locl.h | 106 +++++++++++++++++++++++++++++++++++ 1 file changed, 106 insertions(+) create mode 100644 openssl-1.1.0h/crypto/dso/dso_locl.h (limited to 'openssl-1.1.0h/crypto/dso/dso_locl.h') diff --git a/openssl-1.1.0h/crypto/dso/dso_locl.h b/openssl-1.1.0h/crypto/dso/dso_locl.h new file mode 100644 index 0000000..fbfad05 --- /dev/null +++ b/openssl-1.1.0h/crypto/dso/dso_locl.h @@ -0,0 +1,106 @@ +/* + * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. + * + * Licensed under the OpenSSL license (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 + */ + +#include +#include "internal/cryptlib.h" +#include "internal/dso.h" +#include "internal/dso_conf.h" + +/**********************************************************************/ +/* The low-level handle type used to refer to a loaded shared library */ + +struct dso_st { + DSO_METHOD *meth; + /* + * Standard dlopen uses a (void *). Win32 uses a HANDLE. VMS doesn't use + * anything but will need to cache the filename for use in the dso_bind + * handler. All in all, let each method control its own destiny. + * "Handles" and such go in a STACK. + */ + STACK_OF(void) *meth_data; + int references; + int flags; + /* + * For use by applications etc ... use this for your bits'n'pieces, don't + * touch meth_data! + */ + CRYPTO_EX_DATA ex_data; + /* + * If this callback function pointer is set to non-NULL, then it will be + * used in DSO_load() in place of meth->dso_name_converter. NB: This + * should normally set using DSO_set_name_converter(). + */ + DSO_NAME_CONVERTER_FUNC name_converter; + /* + * If this callback function pointer is set to non-NULL, then it will be + * used in DSO_load() in place of meth->dso_merger. NB: This should + * normally set using DSO_set_merger(). + */ + DSO_MERGER_FUNC merger; + /* + * This is populated with (a copy of) the platform-independent filename + * used for this DSO. + */ + char *filename; + /* + * This is populated with (a copy of) the translated filename by which + * the DSO was actually loaded. It is NULL iff the DSO is not currently + * loaded. NB: This is here because the filename translation process may + * involve a callback being invoked more than once not only to convert to + * a platform-specific form, but also to try different filenames in the + * process of trying to perform a load. As such, this variable can be + * used to indicate (a) whether this DSO structure corresponds to a + * loaded library or not, and (b) the filename with which it was actually + * loaded. + */ + char *loaded_filename; + CRYPTO_RWLOCK *lock; +}; + +struct dso_meth_st { + const char *name; + /* + * Loads a shared library, NB: new DSO_METHODs must ensure that a + * successful load populates the loaded_filename field, and likewise a + * successful unload OPENSSL_frees and NULLs it out. + */ + int (*dso_load) (DSO *dso); + /* Unloads a shared library */ + int (*dso_unload) (DSO *dso); + /* + * Binds a function - assumes a return type of DSO_FUNC_TYPE. This should + * be cast to the real function prototype by the caller. Platforms that + * don't have compatible representations for different prototypes (this + * is possible within ANSI C) are highly unlikely to have shared + * libraries at all, let alone a DSO_METHOD implemented for them. + */ + DSO_FUNC_TYPE (*dso_bind_func) (DSO *dso, const char *symname); + /* + * The generic (yuck) "ctrl()" function. NB: Negative return values + * (rather than zero) indicate errors. + */ + long (*dso_ctrl) (DSO *dso, int cmd, long larg, void *parg); + /* + * The default DSO_METHOD-specific function for converting filenames to a + * canonical native form. + */ + DSO_NAME_CONVERTER_FUNC dso_name_converter; + /* + * The default DSO_METHOD-specific function for converting filenames to a + * canonical native form. + */ + DSO_MERGER_FUNC dso_merger; + /* [De]Initialisation handlers. */ + int (*init) (DSO *dso); + int (*finish) (DSO *dso); + /* Return pathname of the module containing location */ + int (*pathbyaddr) (void *addr, char *path, int sz); + /* Perform global symbol lookup, i.e. among *all* modules */ + void *(*globallookup) (const char *symname); +}; -- cgit v1.2.3