On Thu, 2015-04-30 at 18:04 +0300, Yury Shvedov wrote: > Yes... I mean.. partly. Gnutls stopped using pull_timeout as > synchronous timeout, but I still have problems: > I used > gnutls_dtls_set_timeouts(m_session, 1000, 60*1000); > it helped, but from man pages: > If the retransmission timeout is zero then the handshake will > operate in a non-blocking way, i.e., return GNUTLS_E_AGAIN.
I'll have to check it. However, the documentation seems wrong for that. Does the version with a second of retransmissions work? That should be the correct choice for blocking or non-blocking. > If I set retrnasmission timeout to zero, the gnutls_dtls_get_timeout > returns me zero every time. But according to man pages: > This function is useful when DTLS is used in non-blocking mode. > And gnutls_handshake() doesn't perform any sending after receiving > server_hello. The problem is then I set retrnasmission timeout to > zero, it returns me 0 again after 3 timeouts. What I have to do, when > gnutls_dtls_get_timeout returns zero? When gnutls_dtls_get_timeout is zero, you call gnutls_handshake(). > P.S. I have another several question. > 1. What I have to do when gnutls pass me to pull function the > buffer of smaller size than one, I have the first in queue (in > DTLS mode!)? Divide buffer? If not, return the size of > requested buffer or size of full buffer? I'm not sure I understand the question. > 1. Does gnutls supports the exchange without encryption? What if > I want only fragmentation and authentication feature from this > library? You have to enable the null cipher. E.g., use the priority string "NORMAL:-CIPHER-ALL:+NULL" to both peers. > 1. The valgrind tells me that the buffer, gnutls_dtls_cookie_send > passes to my push function (44 bytes), have an uninitialized > values after first 0xa bytes. The buffer allocated on the > stack. Could you reproduce that with gnutls' tests/mini-dtls-hello-verify.c? regards, Nikos _______________________________________________ Gnutls-help mailing list [email protected] http://lists.gnupg.org/mailman/listinfo/gnutls-help
