linux kernel socket buffer : sk_buff

linux kernel socket buffer : sk_buff

quoted from Professional linux kernel architecture by wolfgang Mauerer., page 750-752.

1. socket buffers areused to exchange data between the network implementation levelswithput having to copy packet data to and from

2. Socket buffers are linked by means of the various pointers they contain with an area in emory where the data of a network packet reside.

3. The basic idea of a socket buffer is to add and remove protocol headers by manipulating pointers.

The Linux® Networking Architecture: Design and Implementation of Network Protocols in the Linux Kernel
http://ngn.ee.tsinghua.edu.cn/~lujx/linux_networking/index.html?page=0131777203_ch04lev1sec1.html

Linux Networking and Network Devices APIs
http://docs.blackfin.uclinux.org/kernel/generated/networking/index.html

毓民第五節 100622.wmv
http://www.youtube.com/watch?v=Sc7ox0yrYIM&feature=youtube_gdata