Software: Apache/2.4.53 (Unix) OpenSSL/1.1.1o PHP/7.4.29 mod_perl/2.0.12 Perl/v5.34.1. PHP/7.4.29 uname -a: Linux vps-2738122-x 4.15.0-213-generic #224-Ubuntu SMP Mon Jun 19 13:30:12 UTC 2023 x86_64 uid=1(daemon) gid=1(daemon) grupos=1(daemon) Safe-mode: OFF (not secure) /opt/lampp/share/doc/openssl/html/man3/ drwxr-xr-x | |
| Viewing file: Select action/file-type: NAMESSL_SESSION_new, SSL_SESSION_dup, SSL_SESSION_up_ref, SSL_SESSION_free - create, free and manage SSL_SESSION structures SYNOPSIS
DESCRIPTIONSSL_SESSION_new() creates a new SSL_SESSION structure and returns a pointer to it. SSL_SESSION_dup() copies the contents of the SSL_SESSION structure in src and returns a pointer to it. SSL_SESSION_up_ref() increments the reference count on the given SSL_SESSION structure. SSL_SESSION_free() decrements the reference count of session and removes the SSL_SESSION structure pointed to by session and frees up the allocated memory, if the reference count has reached 0. If session is NULL nothing is done. NOTESSSL_SESSION objects are allocated, when a TLS/SSL handshake operation is successfully completed. Depending on the settings, see SSL_CTX_set_session_cache_mode(3), the SSL_SESSION objects are internally referenced by the SSL_CTX and linked into its session cache. SSL objects may be using the SSL_SESSION object; as a session may be reused, several SSL objects may be using one SSL_SESSION object at the same time. It is therefore crucial to keep the reference count (usage information) correct and not delete a SSL_SESSION object that is still used, as this may lead to program failures due to dangling pointers. These failures may also appear delayed, e.g. when an SSL_SESSION object was completely freed as the reference count incorrectly became 0, but it is still referenced in the internal session cache and the cache list is processed during a SSL_CTX_flush_sessions(3) operation. SSL_SESSION_free() must only be called for SSL_SESSION objects, for which the reference count was explicitly incremented (e.g. by calling SSL_get1_session(), see SSL_get_session(3)) or when the SSL_SESSION object was generated outside a TLS handshake operation, e.g. by using d2i_SSL_SESSION(3). It must not be called on other SSL_SESSION objects, as this would cause incorrect reference counts and therefore program failures. RETURN VALUESSSL_SESSION_new returns a pointer to the newly allocated SSL_SESSION structure or NULL on error. SSL_SESSION_up_ref returns 1 on success or 0 on error. SEE ALSOssl(7), SSL_get_session(3), SSL_CTX_set_session_cache_mode(3), SSL_CTX_flush_sessions(3), d2i_SSL_SESSION(3) HISTORYThe SSL_SESSION_dup() function was added in OpenSSL 1.1.1. COPYRIGHTCopyright 2000-2016 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. |
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