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Inside the Linux Packet Filter, Part II
Gianluca concludes the packet's journey through the kernel, picking up with TCP processing.
Following a packet's journey through the kernel can be an interesting experience. In our trip we encountered typical kernel data structures (such as skbuffs), discovered idiomatic programming techniques (such as the use of structures with function pointers as an efficient alternative to C++ objects) and met some new 2.4 mechanisms (softirqs).
If you are eager to learn more on the subject, arm yourself with kernel sources and a comfortable editor, swallow a good cup of coffee and start peeking here and there. The price is cheap, and fun is guaranteed!
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Comments
Great article... I also found
Great article... I also found the below url interesting http://yusufonlinux.blogspot.com/
Packet Sniffer at application layer
i have a pacet sniifer at application layer that can sniff ARP through IPv4, TCP, UDP, IPv6
-tuhin
Have to express my appreciation
The best walk-through of Linux's PF_PACKET socket implementation and packet reception I've ever seen!
Re: Kernel Korner: Inside the Linux Packet Filter, Part II
Thank you!
Re: Kernel Korner: Inside the Linux Packet Filter, Part II
Thanks alot!
Re: Kernel Korner: Inside the Linux Packet Filter, Part II
Hi all,
by examining the kernel sources (especially the
network modules'), I see that there functions
embedded by the __initfunc(). Can anybody tell
me what is the role of the __initfunc() ? It denotes
a special function needed to be invoked at kernel
initialisation ?
Any answer is appreciated.
Kiss Jozsef, jkiss@pele.ilab.sztaki.hu
Re: Kernel Korner: Inside the Linux Packet Filter, Part II
Thanks a lot!
Both chapters have been very useful for me. Im making an analyse of kernel structures and functions to measure network and kernel activity in distributed applications.
Javier Mendiara Ca
thanks
Good reading thank you ....