Part I. General Background
The information in this part of the book represents the basic knowledge you need to understand the rest of the book comfortably. If you are already familiar with the Linux kernel, or you are an experienced software engineer, you will be able to go pretty quickly through these chapters. For other readers, I suggest getting familiar with this material before proceeding with the following parts of the book:
- Chapter 1 Introduction
The bulk of this chapter is devoted to introducing a few of the common programming patterns and tricks that you’ll often meet in the networking code.
- Chapter 2 Critical Data Structures
In this chapter, you can find a detailed description of two of the most important data structures used by the networking code: the socket buffer
sk_buffand the network devicenet_device.- Chapter 3 User-Space-to-Kernel Interface
The discussion of each feature in this book ends with a set of sections that shows how user-space configuration tools and the kernel communicate. The information in this chapter can help you understand those sections better.
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