On 04/12/2011 07:38 PM, Jan Kiszka wrote:
On 2011-04-12 18:19, Daisuke Nojiri wrote:
>  This patch adds: -drop-udp, -allow-udp ADDR:PORT, -drop-log FILE
>
>    e.g.) $ qemu -net user -drop-log qemu.drop -drop-udp -allow-udp
>  10.0.2.3:53

No more stand-alone slirp arguments please. That syntax breaks when
instantiating>1 back-ends.

>
>  -drop-udp enables usermode firewall for out-going UDP packats from a guest.
>  All UDP packets except ones allowed by -allow-udp will be dropped. Dropped
>  packets are logged in the file specified by FILE. PORT can be a single
>  number
>  (e.g. 53) or a range (e.g. [80-81]). If ADDR is ommitted, all addresses
>  match
>  the rule.

Will we see a TCP firewall as well? Can we prepare for a more generic
infrastructure, or what makes UDP special?

If some generic firewall like BPF is available as a user library, perhaps we can integrate one instead of writing a new one from scratch.

--
error compiling committee.c: too many arguments to function


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