gnutls_session_get_id2 - API function
int gnutls_session_get_id2(gnutls_session_t session,
gnutls_datum_t * session_id);
- gnutls_session_t session
- is a gnutls_session_t type.
- gnutls_datum_t * session_id
- will point to the session ID.
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 1.2 with session tickets, the notion of session identifiers is
undefined and cannot be relied for uniquely identifying sessions across client
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
and should be treated as constant.
On success, GNUTLS_E_SUCCESS
(0) is returned, otherwise an error code is
Report bugs to <firstname.lastname@example.org>.
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