1SSL_CTX_SET_QUIET_SHUTDOWN(3)       OpenSSL      SSL_CTX_SET_QUIET_SHUTDOWN(3)
2
3
4

NAME

6       SSL_CTX_set_quiet_shutdown, SSL_CTX_get_quiet_shutdown,
7       SSL_set_quiet_shutdown, SSL_get_quiet_shutdown - manipulate shutdown
8       behaviour
9

SYNOPSIS

11        #include <openssl/ssl.h>
12
13        void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode);
14        int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx);
15
16        void SSL_set_quiet_shutdown(SSL *ssl, int mode);
17        int SSL_get_quiet_shutdown(const SSL *ssl);
18

DESCRIPTION

20       SSL_CTX_set_quiet_shutdown() sets the "quiet shutdown" flag for ctx to
21       be mode. SSL objects created from ctx inherit the mode valid at the
22       time SSL_new(3) is called. mode may be 0 or 1.
23
24       SSL_CTX_get_quiet_shutdown() returns the "quiet shutdown" setting of
25       ctx.
26
27       SSL_set_quiet_shutdown() sets the "quiet shutdown" flag for ssl to be
28       mode. The setting stays valid until ssl is removed with SSL_free(3) or
29       SSL_set_quiet_shutdown() is called again.  It is not changed when
30       SSL_clear(3) is called.  mode may be 0 or 1.
31
32       SSL_get_quiet_shutdown() returns the "quiet shutdown" setting of ssl.
33

NOTES

35       Normally when a SSL connection is finished, the parties must send out
36       close_notify alert messages using SSL_shutdown(3) for a clean shutdown.
37
38       When setting the "quiet shutdown" flag to 1, SSL_shutdown(3) will set
39       the internal flags to SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.
40       (SSL_shutdown(3) then behaves like SSL_set_shutdown(3) called with
41       SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN.)  The session is thus
42       considered to be shutdown, but no close_notify alert is sent to the
43       peer. This behaviour violates the TLS standard.
44
45       The default is normal shutdown behaviour as described by the TLS
46       standard.
47

RETURN VALUES

49       SSL_CTX_set_quiet_shutdown() and SSL_set_quiet_shutdown() do not return
50       diagnostic information.
51
52       SSL_CTX_get_quiet_shutdown() and SSL_get_quiet_shutdown return the
53       current setting.
54

SEE ALSO

56       ssl(7), SSL_shutdown(3), SSL_set_shutdown(3), SSL_new(3), SSL_clear(3),
57       SSL_free(3)
58

60       Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
61
62       Licensed under the OpenSSL license (the "License").  You may not use
63       this file except in compliance with the License.  You can obtain a copy
64       in the file LICENSE in the source distribution or at
65       <https://www.openssl.org/source/license.html>.
66
67
68
691.1.1l                            2021-09-15     SSL_CTX_SET_QUIET_SHUTDOWN(3)
Impressum