Stop dissection in get_pdu_len

[Tobias Weiss <tweiss () ra rockwell com>]

Hi,

I'm using tcp_dissect_pdus() to reassemble packets in my dissector. One of
my functions will calculate the length of the real message based on a
header with a fixed length (get_pdu_len function pointer). But what is the
best way to stop the dissection in get_pdu_len if I figured out that the
header is invalid? I could just return 0 which would result in a call to
show_reported_bounds_error(), but is that the best way to report the error?

Thanks!

Tobi

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