gnutls_session_get_id(3) — Linux manual page
gnutls_session_get_id(3) gnutls gnutls_session_get_id(3)
NAME
gnutls_session_get_id - API function
SYNOPSIS
#include <gnutls/gnutls.h>
int gnutls_session_get_id(gnutls_session_t session, void *
session_id, size_t * session_id_size);
ARGUMENTS
gnutls_session_t session
is a gnutls_session_t type.
void * session_id
is a pointer to space to hold the session id.
size_t * session_id_size
initially should contain the maximum session_id size
and will be updated.
DESCRIPTION
Returns the TLS session identifier. The session ID is selected by
the server, and in older versions of TLS was a unique identifier
shared between client and server which was persistent across
resumption. In the latest version of TLS (1.3) or TLS with
session tickets, the notion of session identifiers is undefined
and cannot be relied for uniquely identifying sessions across
client and server.
In client side this function returns the identifier returned by
the server, and cannot be assumed to have any relation to session
resumption. In server side this function is guaranteed to return
a persistent identifier of the session since GnuTLS 3.6.4, which
may not necessarily map into the TLS session ID value. Prior to
that version the value could only be considered a persistent
identifier, under TLS1.2 or earlier and when no session tickets
were in use.
The session identifier value returned is always less than
GNUTLS_MAX_SESSION_ID_SIZE.
RETURNS
On success, GNUTLS_E_SUCCESS (0) is returned, otherwise an error
code is returned.
REPORTING BUGS
Report bugs to <bugs@gnutls.org>.
Home page: https://www.gnutls.org
COPYRIGHT
Copyright © 2001-2023 Free Software Foundation, Inc., and others.
Copying and distribution of this file, with or without
modification, are permitted in any medium without royalty
provided the copyright notice and this notice are preserved.
SEE ALSO
The full documentation for gnutls is maintained as a Texinfo
manual. If the /usr/share/doc/gnutls/ directory does not contain
the HTML form visit
https://www.gnutls.org/manual/
COLOPHON
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manual page, send it to bugs@gnutls.org. This page was obtained
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