Document when a new session ticket gets created on resumption
Reviewed-by: Viktor Dukhovni <viktor@openssl.org> (Merged from https://github.com/openssl/openssl/pull/6198)
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@ -77,6 +77,12 @@ the key that was used to encrypt the session ticket.
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When the B<gen_cb> callback is invoked, the SSL_get_session() function can be
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used to retrieve the SSL_SESSION for SSL_SESSION_set1_ticket_appdata().
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By default, in TLSv1.2 and below, a new session ticket is not issued on a
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successful resumption and therefore B<gen_cb> will not be called. In TLSv1.3 the
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default behaviour is to always issue a new ticket on resumption. In both cases
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this behaviour can be changed if a ticket key callback is in use (see
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L<SSL_CTX_set_tlsext_ticket_key_cb(3)>).
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=head1 RETURN VALUES
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The SSL_CTX_set_session_ticket_cb(), SSL_SESSION_set1_ticket_appdata() and
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