I have a copy. It's well, but too big) Recently was published book about TCP/IP stack implementation in Linux:
http://www.amazon.com/Architecture-Design-Implementation-Linux-Practitioners/dp/0470147733/ref=sr_1_3?ie=UTF8&s=books&qid=1231089656&sr=8-3 I think that the book should be good. -- Regards, Denis
