On Thu, 17 Jan 2008, Paul Fox wrote:
> > + if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter_prog,
> > + sizeof(filter_prog)) < 0)
> > + bb_perror_msg_and_die("setsockopt");
> > + DEBUG("attached filter to raw socket fdr %d", fd);
>
> is this supported on all kernel versions that busybox currently
> supports? i simply don't know, having never used BPF, and i'm
> wondering whether this needs to be configurable.
Quick search and found this note:
"At least from kernel version 2.1.96, Linux supports a packet capture
system called ``Linux Socket Filter'', which is based on BPF and
provides kernel level packet filtering."
http://www.wand.net.nz/pubs/22/html/node28.html
Cheers,
--
Cristian
_______________________________________________
busybox mailing list
[email protected]
http://busybox.net/cgi-bin/mailman/listinfo/busybox
