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Re: [Qemu-devel][PATCH] Tap and VLAN socket support for win32

From: Kazu
Subject: Re: [Qemu-devel][PATCH] Tap and VLAN socket support for win32
Date: Thu, 9 Feb 2006 23:00:33 +0900


I send this mail again because it doesn't reach qemu-devel list by unknown
security reason.

Sent: Sunday, February 05, 2006 3:28 AM Fabrice Bellard wrote:

> Kazu wrote:
>> Thursday, February 02, 2006 8:10 AM Fabrice Bellard wrote:
>>> Hi,
>>> I merged your patches and I made important changes to simplify them. I
>>> did not do any tests so tell me if you see problems.
>> -net socket,connect doesn't work. On Windows host, connect returns with
>> = WSAEWOULDBLOCK and second time err = WSAEINVAL. I think changing the
>> place
>> of EWOULDBLOCK would be good. On Linux host, EWOULDBLOCK is the same as
>> EAGAIN but a patch works on both Linux and Windows.
> Unfortunately on Linux the correct return value we are expecting is
> EINPROGRESS. EAGAIN means that the 'connect' was not initiated so it is
> necessary to redo it.

There is not good way to detect a completion of asynchronous connect. So I
used an event object to detect it. A patch is attached.

>> For -net socket,mcast, bind have to be done by sin_addr.s_addr =
>> It seems that it works on Linux host.
> It works on Linux but it is not correct because it prevents from
> listening to several multicast addresses at the same time. If doing the
> same on Windows is not possible I agree to make a special case.

I couldn't find a way to set a multicast address. I made it a special case
in the patch


Attachment: qemu-20060208-vlan-2.patch.gz
Description: GNU Zip compressed data

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