On Apr 4, 2025, at 11:29 AM, Michael Richardson <[email protected]> wrote:
> I can't recall if we can read pcapng.
libpcap - and thus programs, such as tcpdump, that use libpcap to read capture
files - can read some pcapng files, as long as the current libpcap API can
handle them. That's been the case since libpcap 1.1.
However, "as long as the current libpcap API can handle them" means that:
1) all of the sections of the pcapng file must have the same byte
order, as the current API reports a single byte order for the entire file;
2) all interfaces in all sections of the pcapng file must have the same
link-layer header type and snapshot length, as the current API reports a single
link-layer header type and snapshot length for the entire file;
3) block types other than packet blocks can't be reported to the caller;
4) options such as comments can't be reported to the caller.
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