/usr/man/cat.3/SSL_CTX_set_timeout.3

SSL_CTX_set_timeout(3)       OpenSSL       SSL_CTX_set_timeout(3)

NAME

     SSL_CTX_set_timeout, SSL_CTX_get_timeout - manipulate
     timeout values for session caching

SYNOPSIS

      #include <openssl/ssl.h>

      long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
      long SSL_CTX_get_timeout(SSL_CTX *ctx);

DESCRIPTION

     SSL_CTX_set_timeout() sets the timeout for newly created
     sessions for ctx to t. The timeout value t must be given in
     seconds.

     SSL_CTX_get_timeout() returns the currently set timeout
     value for ctx.

NOTES

     Whenever a new session is created, it is assigned a maximum
     lifetime. This lifetime is specified by storing the creation
     time of the session and the timeout value valid at this
     time. If the actual time is later than creation time plus
     timeout, the session is not reused.

     Due to this realization, all sessions behave according to
     the timeout value valid at the time of the session
     negotiation. Changes of the timeout value do not affect
     already established sessions.

     The expiration time of a single session can be modified
     using the SSL_SESSION_get_time(3) family of functions.

     Expired sessions are removed from the internal session
     cache, whenever SSL_CTX_flush_sessions(3) is called, either
     directly by the application or automatically (see
     SSL_CTX_set_session_cache_mode(3))

     The default value for session timeout is decided on a per
     protocol basis, see SSL_get_default_timeout(3).  All
     currently supported protocols have the same default timeout
     value of 300 seconds.

RETURN VALUES

     SSL_CTX_set_timeout() returns the previously set timeout
     value.

     SSL_CTX_get_timeout() returns the currently set timeout
     value.

SEE ALSO

     ssl(3), SSL_CTX_set_session_cache_mode(3),

1.0.2t               Last change: 2019-09-10                    1

SSL_CTX_set_timeout(3)       OpenSSL       SSL_CTX_set_timeout(3)

     SSL_SESSION_get_time(3), SSL_CTX_flush_sessions(3),
     SSL_get_default_timeout(3)

1.0.2t               Last change: 2019-09-10                    2

See also SSL_CTX_get_timeout(3)