IPChains NetLink Device

Walter Reed (walt@itrade.net)
Tue, 11 May 1999 11:10:12 -0700

I am working on some code that reads packets from the netlink device
(IP_FIREWALL_NETLINK) to do some specialized reporting about certain packets.

I was looking at the sample code in fwinterface.c (libfw-0.2) and it looks
like it reads 65535 bytes at a time (and always returns less).

Questions:
Are you guaranteed to only get one packet for one read or
are there sometimes several?

Does a read always return the start of the packet or is there a
possibility that you may start reading in the middle of a packet?

If you don't read packets fast enough, are some discarded?

--
  Walter Reed <walt@itrade.net>
  Director of Network Operations
  InterTrade Systems Corp.


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