[Qemu-devel] interesting tftp experiments

[Christian MICHON <christian.michon@gmail.com>]

Hi,

since I was able on a windows host to connect (but no transfer)
on a ftp server over slirp, I thought I could do the same:
over slirp, connect to a true tftp server, not the layer provided
in slirp/tftp.c

In order to do so, I had to do minor patches to v0.7.0
- remove reference to tftp in vl.c
- remove reference to tftp in slirp/udp.c
- remove tftp.o linkage

By doing so, I have a ~true~ tftp-over-slirp qemu. I tried it
and yes I can READ & WRITE to a small tftp server I
found for windows host (http://tftpd32.jounin.net).

I still have some problems though. When the read or
write command is sent, it apparently somehow jams
the slirp channel. The read or write happens, but
not immediately (around 2 sec delay). 

The bad news is that so far, I've manage per session
of qemu either one write, or one read. If someone
has the knowledge of what could be wrong in this
part of slirp, please correct the flaws of what I just
found out.

At least, we should be able to transfer back and
forth files lesser than 32M.

-- 
Christian