Hello hackers,
I am new to FreeBSD but I am familiar with Unix like systems in general and Linux in particular.
I am doing a project where-in I need to manipulate a few things in the mbuf's of network stack (mainly in TCP) and capture per packet statistics. Then the collated data has to be passed on to userspace. I have two queries regarding this.
First one is in general abt the method to be followed, I have the following ideas Please provide your suggestion on them also if you consider some other approach would be better then please do suggest.
1. Writing to a virtual device: This looks a very good option for me because it is light weight and should be straight forward to implement
2. A ring buffer in kernel: Something like libpcap does. should be good.
3. Writing to syslogger: not very attractive to me because it is mainly a common place for all modules and I dont have complete control over it.
4. Writing to a file: I dont think this is feasible because it is not appropriate to do costly I/O in kernel mode and also it is a cumbersome task.
Your say on the above ??? Any other approach(s) ???? Plzz let me know.
Second, as I said I am a newbie for FreeBSD, can somebody please point me to resources/docs for writing a virtual device. I read the chapter 13 in the Handbook, but it would be helpful if a document provide some info about interacting with a device from the kernel.
TIA,
Best Regards, Amit _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
