/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* ==================================================================== * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). */ #ifndef OPENSSL_HEADER_EX_DATA_H #define OPENSSL_HEADER_EX_DATA_H #include <openssl_grpc/base.h> #include <openssl_grpc/stack.h> #if defined(__cplusplus) extern "C" { #endif // ex_data is a mechanism for associating arbitrary extra data with objects. // For each type of object that supports ex_data, different users can be // assigned indexes in which to store their data. Each index has callback // functions that are called when an object of that type is freed or // duplicated. typedef struct crypto_ex_data_st CRYPTO_EX_DATA; // Type-specific functions. // // Each type that supports ex_data provides three functions: #if 0 // Sample // TYPE_get_ex_new_index allocates a new index for |TYPE|. An optional // |free_func| argument may be provided which is called when the owning object // is destroyed. See |CRYPTO_EX_free| for details. The |argl| and |argp| // arguments are opaque values that are passed to the callback. It returns the // new index or a negative number on error. OPENSSL_EXPORT int TYPE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_unused *unused, CRYPTO_EX_dup *dup_unused, CRYPTO_EX_free *free_func); // TYPE_set_ex_data sets an extra data pointer on |t|. The |index| argument // should have been returned from a previous call to |TYPE_get_ex_new_index|. OPENSSL_EXPORT int TYPE_set_ex_data(TYPE *t, int index, void *arg); // TYPE_get_ex_data returns an extra data pointer for |t|, or NULL if no such // pointer exists. The |index| argument should have been returned from a // previous call to |TYPE_get_ex_new_index|. OPENSSL_EXPORT void *TYPE_get_ex_data(const TYPE *t, int index); #endif // Sample // Callback types. // CRYPTO_EX_free is a callback function that is called when an object of the // class with extra data pointers is being destroyed. For example, if this // callback has been passed to |SSL_get_ex_new_index| then it may be called each // time an |SSL*| is destroyed. // // The callback is passed the new object (i.e. the |SSL*|) in |parent|. The // arguments |argl| and |argp| contain opaque values that were given to // |CRYPTO_get_ex_new_index|. The callback should return one on success, but // the value is ignored. // // This callback may be called with a NULL value for |ptr| if |parent| has no // value set for this index. However, the callbacks may also be skipped entirely // if no extra data pointers are set on |parent| at all. typedef void CRYPTO_EX_free(void *parent, void *ptr, CRYPTO_EX_DATA *ad, int index, long argl, void *argp); // Deprecated functions. // CRYPTO_cleanup_all_ex_data does nothing. OPENSSL_EXPORT void CRYPTO_cleanup_all_ex_data(void); // CRYPTO_EX_dup is a legacy callback function type which is ignored. typedef int CRYPTO_EX_dup(CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from, void **from_d, int index, long argl, void *argp); // Private structures. // CRYPTO_EX_unused is a placeholder for an unused callback. It is aliased to // int to ensure non-NULL callers fail to compile rather than fail silently. typedef int CRYPTO_EX_unused; struct crypto_ex_data_st { STACK_OF(void) *sk; }; #if defined(__cplusplus) } // extern C #endif #endif // OPENSSL_HEADER_EX_DATA_H