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https://github.com/pfalcon/lwip-esp8266

Upstream lwIP with complete history and cleaned up ESP8266 patchset on top
https://github.com/pfalcon/lwip-esp8266

esp8266 lwip upstream

Last synced: 3 months ago
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Upstream lwIP with complete history and cleaned up ESP8266 patchset on top

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README 

        
INTRODUCTION



lwIP is a small independent implementation of the TCP/IP protocol

suite that has been developed by Adam Dunkels at the Computer and

Networks Architectures (CNA) lab at the Swedish Institute of Computer

Science (SICS).



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.



FEATURES



  * IP (Internet Protocol) 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

  * UDP (User Datagram Protocol) including experimental UDP-lite extensions

  * TCP (Transmission Control Protocol) with congestion control, RTT estimation

    and fast recovery/fast retransmit

  * Specialized raw/native API for enhanced performance

  * Optional Berkeley-like socket API

  * DNS (Domain names resolver)

  * SNMP (Simple Network Management Protocol)

  * DHCP (Dynamic Host Configuration Protocol)

  * AUTOIP (for IPv4, conform with RFC 3927)

  * PPP (Point-to-Point Protocol)

  * ARP (Address Resolution Protocol) for Ethernet



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, CVS and the

mailing list. A core team of developers will commit changes to the

CVS source tree.



The lwIP TCP/IP stack is maintained in the 'lwip' CVS module and

contributions (such as platform ports) are in the 'contrib' module.



See doc/savannah.txt for details on CVS server access for users and

developers.



Last night's CVS tar ball can be downloaded from:

  http://savannah.gnu.org/cvs.backups/lwip.tar.gz [CHANGED - NEEDS FIXING]



The current CVS trees are web-browsable:

  http://savannah.nongnu.org/cgi-bin/viewcvs/lwip/lwip/

  http://savannah.nongnu.org/cgi-bin/viewcvs/lwip/contrib/



Submit patches and bugs via the lwIP project page:

  http://savannah.nongnu.org/projects/lwip/



DOCUMENTATION



The original out-dated homepage of lwIP and Adam Dunkels' papers on

lwIP are at the official lwIP home page:

  http://www.sics.se/~adam/lwip/



Self documentation of the source code is regularly extracted from the

current CVS sources and is available from this web page:

  http://www.nongnu.org/lwip/



There is now a constantly growin wiki about lwIP at

  http://lwip.wikia.com/wiki/LwIP_Wiki



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/



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