Commit d3e0c032 authored by Thomas Huth's avatar Thomas Huth Committed by Jason Wang
Browse files

options: Add documentation for filter-dump 



Add a short description for the filter-dump command line options.

Signed-off-by: default avatarThomas Huth <thuth@redhat.com>
Signed-off-by: default avatarJason Wang <jasowang@redhat.com>
parent 9d3e12e8

qemu-options.hx

+8 −0
Original line number Diff line number Diff line
@@ -2012,6 +2012,7 @@ qemu -m 512 -object memory-backend-file,id=mem,size=512M,mem-path=/hugetlbfs,sha 
Dump network traffic on VLAN @var{n} to file @var{file} (@file{qemu-vlan0.pcap} by default).

At most @var{len} bytes (64k by default) per packet are stored. The file format is

libpcap, so it can be analyzed with tools such as tcpdump or Wireshark.

Note: For devices created with '-netdev', use '-object filter-dump,...' instead.



@item -net none

Indicate that no network devices should be configured. It is used to
@@ -3665,6 +3666,13 @@ 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-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

@var{filename}. At most @var{len} bytes (64k by default) per packet are stored.

The file format is libpcap, so it can be analyzed with tools such as tcpdump

or Wireshark.



@end table



ETEXI