netdev - open() on sockets (sock_no

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Message-ID: <46995671.5080503@simon.arlott.org.uk>
Date:	Sun, 15 Jul 2007 00:04:17 +0100
From:	Simon Arlott <simon@...e.lp0.eu>
To:	netdev@...r.kernel.org
Subject: open() on sockets (sock_no_open)

There are sockets in /proc/<pid>/fd/, but they can't be opened because
of this function:

/*
 *  In theory you can't get an open on this inode, but /proc provides
 *  a back door. Remember to keep it shut otherwise you'll let the
 *  creepy crawlies in.
 */
static int sock_no_open(struct inode *irrelevant, struct file *dontcare)

How would I make it possible to open existing sockets?

It's possible to duplicate access to the same socket using fork(), but I
just seem to be creating a mess when I try to make open() work because
it breaks after calling socket_close... is there a way to do this so it
works properly?

-- 
Simon Arlott
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