You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.0 KiB
60 lines
2.0 KiB
4 years ago
|
=pod
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
SSL_CTX_set_timeout, SSL_CTX_get_timeout - manipulate timeout values for session caching
|
||
|
|
|
||
|
|
=head1 SYNOPSIS
|
||
|
|
|
||
|
|
#include <openssl/ssl.h>
|
||
|
|
|
||
|
|
long SSL_CTX_set_timeout(SSL_CTX *ctx, long t);
|
||
|
|
long SSL_CTX_get_timeout(SSL_CTX *ctx);
|
||
|
|
|
||
|
|
=head1 DESCRIPTION
|
||
|
|
|
||
|
|
SSL_CTX_set_timeout() sets the timeout for newly created sessions for
|
||
|
|
B<ctx> to B<t>. The timeout value B<t> must be given in seconds.
|
||
|
|
|
||
|
|
SSL_CTX_get_timeout() returns the currently set timeout value for B<ctx>.
|
||
|
|
|
||
|
|
=head1 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
|
||
|
|
L<SSL_SESSION_get_time(3)|SSL_SESSION_get_time(3)> family of functions.
|
||
|
|
|
||
|
|
Expired sessions are removed from the internal session cache, whenever
|
||
|
|
L<SSL_CTX_flush_sessions(3)|SSL_CTX_flush_sessions(3)> is called, either
|
||
|
|
directly by the application or automatically (see
|
||
|
|
L<SSL_CTX_set_session_cache_mode(3)|SSL_CTX_set_session_cache_mode(3)>)
|
||
|
|
|
||
|
|
The default value for session timeout is decided on a per protocol
|
||
|
|
basis, see L<SSL_get_default_timeout(3)|SSL_get_default_timeout(3)>.
|
||
|
|
All currently supported protocols have the same default timeout value
|
||
|
|
of 300 seconds.
|
||
|
|
|
||
|
|
=head1 RETURN VALUES
|
||
|
|
|
||
|
|
SSL_CTX_set_timeout() returns the previously set timeout value.
|
||
|
|
|
||
|
|
SSL_CTX_get_timeout() returns the currently set timeout value.
|
||
|
|
|
||
|
|
=head1 SEE ALSO
|
||
|
|
|
||
|
|
L<ssl(3)|ssl(3)>,
|
||
|
|
L<SSL_CTX_set_session_cache_mode(3)|SSL_CTX_set_session_cache_mode(3)>,
|
||
|
|
L<SSL_SESSION_get_time(3)|SSL_SESSION_get_time(3)>,
|
||
|
|
L<SSL_CTX_flush_sessions(3)|SSL_CTX_flush_sessions(3)>,
|
||
|
|
L<SSL_get_default_timeout(3)|SSL_get_default_timeout(3)>
|
||
|
|
|
||
|
|
=cut
|