Re: supporting extend 'open live capture' parametes

[Guy Harris <guy () alum mit edu>]

Abeni Paolo wrote:

> I thought that such things (pcap API to ask for supported parameters)
> could be implemented adding dedicated fields into the pcap struct (on in
> a pcap_t sub structure), which must be set by the platform specific
> pcap_activate().

That would mean you couldn't ask for supported parameters until 
pcap_activate() is called; however, an application such as Wireshark 
would want to query whether monitor mode is available *before* activating.

If, instead, we have pcap_create() take a device name as an argument (as 
per another suggestion), it could set some function pointers at create 
time, e.g. the "can this support monitor mode?" function pointer - as 
well as an activate function pointer.  When the activate function is 
called, it would change other pointers.
-
This is the tcpdump-workers list.
Visit https://cod.sandelman.ca/ to unsubscribe.