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

[Andreas Schultz]

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
gnutls_dtls_set_mtu.

Should I open a new ticket for this?

(file #32761)
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Additional Item Attachment:

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


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