On 26/08/15 11:59, Yang Hongyang wrote:
This patch add a new object netfilter, capture all network packets.
Also implement a netbuffer based on this object.
the "buffer" netfilter could be used by VM FT solutions like
MicroCheckpointing, to buffer/release packets. Or to simulate
packet delay.
You can also get the series from:
https://github.com/macrosheep/qemu/tree/netfilter-v8
Usage:
-netdev tap,id=bn0
-netfilter buffer,id=f0,netdev=bn0,chain=in,interval=1000
-device e1000,netdev=bn0
dynamically add/remove netfilters:
netfilter_add buffer,id=f0,netdev=bn0,chain=in,interval=1000
netfilter_del f0
NOTE:
interval's scale is microsecond.
chain is optional, and is one of in|out|all, default is "all".
"in" means this filter will receive packets sent to the @netdev
"out" means this filter will receive packets sent from the @netdev
"all" means this filter will receive packets both sent to/from
the @netdev
TODO:
- dump
FYI, I've now reworked my dump patch series to use your netfilter
infrastructure - worked out fine and it was pretty easy since your
netfilter infrastructure is very usable! I'll polish my patches a little
bit more, then I'll send them out, too. So I am looking forward to see
your netfilter infrastructure included in upstream soon :-)