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net/filter-mirror:Add filter-mirror

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Filter-mirror is a netfilter plugin.
It gives qemu the ability to mirror
packets to a chardev.

usage:

-netdev tap,id=hn0
-chardev socket,id=mirror0,host=ip_primary,port=X,server,nowait
-filter-mirror,id=m0,netdev=hn0,queue=tx/rx/all,outdev=mirror0

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yang Hongyang <hongyang.yang@easystack.cn>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Zhang Chen 2016-03-15 15:41:33 +08:00 • committed by Jason Wang
parent 553934db66
commit f6d3afb51f
4 changed files with 191 additions and 1 deletions
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5
qemu-options.hx
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@ -3841,6 +3841,11 @@ queue @var{all|rx|tx} is an option that can be applied to any netfilter.
@option{tx}: the filter is attached to the transmit queue of the netdev,
where it will receive packets sent by the netdev.
@item -object filter-mirror,id=@var{id},netdev=@var{netdevid},outdev=@var{chardevid}[,queue=@var{all|rx|tx}]
filter-mirror on netdev @var{netdevid},mirror net packet to chardev
@var{chardevid}
@item -object filter-dump,id=@var{id},netdev=@var{dev},file=@var{filename}][,maxlen=@var{len}]
Dump the network traffic on netdev @var{dev} to the file specified by