On Sun, Jul 13, 2003 at 11:45:53AM +0200, Patrick Kilian wrote:
> Hi,
>
> does someone know how to create a socket in kernelspace and how to
> handle connections to it? I want to create a socket in the PF_LOCAL
> namespace called /tmp/guestsocket.
And what about "\0guestsocket" ?
> I know that I have to do this in a seperate kernel thread and I managed
> to to create a kernel thread using kernel_thread.
> All examples I could find were using the PF_INET namespace, but I want
> to use the PF_LOCAL namespace. The problem I have is:
>
> struct socket *guestsock;
> error = sock_create(PF_UNIX, SOCK_DGRAM, 0, &guestsock);
It looks OK to my eyes.
> if (error<0) {
> perror("socket thread: can't create guest socket");
That exists in kernel?!?! I really, really, really doubt that.
> }
>
> always gives:
> socket thread: can't create guest socket: Operation not permitted
Are you sure you know where the "Operation not permitted" comes from?
(Hint: the "perror" function was not passed the error argument, so it can't
know what it was!)
> Kernel panic: Segfault with no mm
This looks like an umlinux error, right?
If so, get a debugger, attach and inspect ;-).
Especially try to get value of "error".
-------------------------------------------------------------------------------
Jan 'Bulb' Hudec <bulb@ucw.cz>
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