Add a preference to override the radiotap FCS bit.

This is separate from the 802.11 preference, which only affects packets
where no file or packet metadata indicates whether there is an FCS (yes,
that is intentional behavior).  This is specifically for radiotap, in
case some driver fails to set the FCS bit correctly (this is currently
an issue with Npcap, which currently assumes that the packet has an FCS
iff NDIS indicated the packet with the DOT11_RECV_FLAG_RAW_PACKET flag;
that doesn't appear to be a reliable indicator, and it's not clear there
*is* a reliable indicator, so Npcap might have to fall back on something
really gross like a quirks database for particular adapters).

Change-Id: Ia3b134d89004307442d42cfa5ed3cf8fb938235f
Ping-Bug: 15010
Reviewed-on: https://code.wireshark.org/review/28855
Reviewed-by: Guy Harris <guy@alum.mit.edu>

0 files changed, 0 insertions, 0 deletions