这是一本系统阐述Linux设备驱动程序技术内幕的专业书籍，它的侧重点不是讨论如何在Linux系统下编写设备驱动程序，而是要告诉读者隐藏在这些设备驱动程序背后的那些内核机制及原理。作者通过对Linux内核源码抽丝剥茧般的解读，再辅之以精心设计的大量图片，使读者在阅读完《深入Linux设备驱动程序内核机制》后对驱动程序前台所展现出来的那些行为特点变得豁然开朗。

INTRODUCTION lwIP is a small independent implementation of the TCP/IP protocol suite. The focus of the lwIP TCP/IP implementation is to reduce the RAM usage while still having a full scale TCP. This making lwIP suitable for use in embedded systems with tens of kilobytes of free RAM and room for around 40 kilobytes of code ROM. lwIP was originally developed by Adam Dunkels at the Computer and Networks Architectures (CNA) lab at the Swedish Institute of Computer Science (SICS) and is now developed and maintained by a worldwide network of developers. FEATURES * IP (Internet Protocol, IPv4 and IPv6) including packet forwarding over multiple network interfaces * ICMP (Internet Control Message Protocol) for network maintenance and debugging * IGMP (Internet Group Management Protocol) for multicast traffic management * MLD (Multicast listener discovery for IPv6). Aims to be compliant with RFC 2710. No support for MLDv2 * ND (Neighbor discovery and stateless address autoconfiguration for IPv6). Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 (Address autoconfiguration) * DHCP, AutoIP/APIPA (Zeroconf), ACD (Address Conflict Detection) and (stateless) DHCPv6 * UDP (User Datagram Protocol) including experimental UDP-lite extensions * TCP (Transmission Control Protocol) with congestion control, RTT estimation fast recovery/fast retransmit and sending SACKs * raw/native API for enhanced performance * Optional Berkeley-like socket API * TLS: optional layered TCP ("altcp") for nearly transparent TLS for any TCP-based protocol (ported to mbedTLS) (see changelog for more info) * PPPoS and PPPoE (Point-to-point protocol over Serial/Ethernet) * DNS (Domain name resolver incl. mDNS) * 6LoWPAN (via IEEE 802.15.4, BLE or ZEP) APPLICATIONS * HTTP server with SSI and CGI (HTTPS via altcp) * SNMPv2c agent with MIB compiler (Simple Network Management Protocol), v3 via altcp * SNTP (Simple network time protocol) * NetBIOS name service responder * MDNS (Multicast DNS) responder * iPerf server implementation * MQTT client (TLS support via altcp) LICENSE lwIP is freely available under a BSD license. DEVELOPMENT lwIP has grown into an excellent TCP/IP stack for embedded devices, and developers using the stack often submit bug fixes, improvements, and additions to the stack to further increase its usefulness. Development of lwIP is hosted on Savannah, a central point for software development, maintenance and distribution. Everyone can help improve lwIP by use of Savannah's interface, Git and the mailing list. A core team of developers will commit changes to the Git source tree. The lwIP TCP/IP stack is maintained in the 'lwip' Git module and contributions (such as platform ports) are in the 'contrib' Git module. See doc/savannah.txt for details on Git server access for users and developers. The current Git trees are web-browsable: http://git.savannah.gnu.org/cgit/lwip.git http://git.savannah.gnu.org/cgit/lwip/lwip-contrib.git Submit patches and bugs via the lwIP project page: http://savannah.nongnu.org/projects/lwip/ Continuous integration builds (GCC, clang): https://travis-ci.org/lwip-tcpip/lwip DOCUMENTATION Self documentation of the source code is regularly extracted from the current Git sources and is available from this web page: http://www.nongnu.org/lwip/ Also, there are mailing lists you can subscribe at http://savannah.nongnu.org/mail/?group=lwip plus searchable archives: http://lists.nongnu.org/archive/html/lwip-users/ http://lists.nongnu.org/archive/html/lwip-devel/ There is a wiki about lwIP at http://lwip.wikia.com/wiki/LwIP_Wiki You might get questions answered there, but unfortunately, it is not as well maintained as it should be. lwIP was originally written by Adam Dunkels: http://dunkels.com/adam/ Reading Adam's papers, the files in docs/, browsing the source code documentation and browsing the mailing list archives is a good way to become familiar with the design of lwIP. Adam Dunkels Leon Woestenberg

linux TCP/ip协议栈源码分析文档，逐块分析协议栈各个子模块。

阐述了Linux中TCP/IP协议的实现，并对其中的源代码进行解析

LINUX 的TCP/IP协议栈源码！！！！！！！！！！！！

深入浅出Linux+TCP_IP协议栈，很详实，如果你有这方面需求，这本书会是你不错的选择

51+单片机TCP-IP+协议栈ZLIP源码

本书涵盖了Linux嵌入式系统开发中网络体系结构实现的主要内容。[1] 全书共分12章，第1章概述Linux内核组件与内核技术特点，以及网络体系结构实现应用到的内核开发的基础知识。第2～5章在介绍了实现网络体系结构、协议栈、设备驱动程序的两个最重要的数据结构sk_buff和net_device的基础上，展示了Linux内核中为网络设备驱动程序设计和开发而建立的系统构架，最后以两个实例来具体说明如何着手开发网络设备驱动程序，数据在硬件设备上的接收和发送过程。第6章讨论了网络协议栈中数据链路层收发数据的设计和实现，以及硬件层与协议层之间的接口。第7章讲解了网络层IP协议的实现。第8～9章介绍传输层数据收发过程，重点介绍基于套接字的TCP/UDP传输实现。第10章讨论了Linux内核套接字层的实现，以及套接字层与应用层、传输层之间的接口。第11章介绍网络应用软件的开发技术，以及内核对网络应用的支持。第12章讲解在嵌入式系统开发中如何将硬件驱动程序、内核代码、应用程序集成在一起下载至芯片中，形成嵌入式可运行的系统，作为全书的总结。 本书可以作为高等院校计算机、通信专业学生学习操作系统的参考书，也可以作为从事嵌入式、计算机行业的工程技术人员的参考书。

linux聊天工具，基于TCP协议，使用c语言编写，Ubuntu16.04下测试通过。

STM32F103VET6 & STM32F103ZET6 兼容，例程支持SPI访问与FSMC访问。实测完美驱动W5100S，量产使用例程。