On Fri, Jan 10, 2014 at 12:56 PM, Stig Bjørlykke <stig@xxxxxxxxxxxxx> wrote:
> This commit introduced a bug where I always get
> "[Malformed Packet: PRES]" in X.400 traffic.
Reassembly in RTSE is a bit special. The reassembly is done when
receiving a SES "MAJOR SYNC POINT", as this indicates the end of the
COTP DT Data stream. The payload for this pdu is empty, which results
in a empty tvb being sent to RTSE (which then reassemble all previous
received payloads).
Updating the RTSE dissector to a new-style was done by returning
tvb_length(tvb), which in this case is always 0. Returning 0 from a
new-style dissector means this package was not for us, which is wrong
in this case.
I've added a fix for this in 54693.
--
Stig Bjørlykke