[gnutls-devel] [sr #108712] mutiple DTLS records in one UDP packet not handled correctly

Andreas Schultz INVALID.NOREPLY at gnu.org
Mon Jan 5 12:11:02 CET 2015

Follow-up Comment #4, sr #108712 (project gnutls):

Got a working demo and it doesn't even the non-blocking socket.

However, when looking more closely at the socket code, I found another
potential problem. DTLS UDP sockets use writev to push out all parts for the
handshake flight. writev will combine all iovec's into one single UDP datagram
when the path MTU permits it. This defeats the purpose of

Should I open a new ticket for this?

(file #32761)

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File name: mini-dtls-srecord.c            Size:8 KB


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