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authorThomas Huth <thuth@redhat.com>2015-10-13 12:40:02 +0200
committerJason Wang <jasowang@redhat.com>2015-10-27 10:30:36 +0800
commitd3e0c032f52f4fb855f9bd2892ebd175a9d975a1 (patch)
treeda654698278f5ccf4143abd632313dbf7c3e8854 /qemu-options.hx
parent9d3e12e881bc97bc32ac75d146b5347136f29ca1 (diff)
downloadqemu-arm-d3e0c032f52f4fb855f9bd2892ebd175a9d975a1.tar.gz
options: Add documentation for filter-dump
Add a short description for the filter-dump command line options. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx8
1 files changed, 8 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index edee5f4844..949db7f2ea 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -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