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Date: Thu, 21 Feb 2002 20:54:41 -0500 (EST)
From: Marek Zawadzki <mzawadzk@cs.stevens-tech.edu>
To: <linux-kernel@vger.kernel.org>
Subject: How to implement listen and accept routines
Message-ID: <Pine.NEB.4.33.0202212054040.7235-100000@courage.cs.stevens-tech.edu>
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Hello,

I want to make my protocol connection-oriented. I am really stuck with
listen and accept routines :-(. As examples, I took:
int tcp_listen_start(struct sock *sk);
struct sock *tcp_accept(struct sock *sk, int flags, int *err);

Could anybody briefly explain me how should I implement them? I know the
purpose of those functions in the userland.
Mainly I have 2 questions:
1. What else besides changing sk->state to TCP_LISTEN should my
"listen_start" do?
2. How do I get a pending "socket" in my "accept" function. Should
sock_alloc a new one or copy it from some queue?

Thanks for any help!
-marek

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