If user use -device virtio-net-pci, virtio-net driver will add a header
to raw net packet that colo-proxy can't handle it. COLO-proxy just
focus on the packet payload, so we skip the virtio-net header to compare
the sent packet that primary guest's to secondary guest's.

V4:
 - Add vnet_hdr option for filter-mirror, filter-redirector,
   filter-rewriter,colo-compare.
 - Use new design to impliment virtio-net support for colo-proxy.
 - Fix codestyle.
 - Remove unused option for filter-rewriter.
 - Add filter-rewriter virtio-net support.
 - Address other comments.


Zhang Chen (12):
  net: Add vnet_hdr_len related arguments in NetClientState
  net/filter-mirror.c: Add new option to enable vnet support for
    filter-mirror
  net/filter-mirror.c: Make filter_mirror_send support vnet support.
  net/filter-mirror.c: Add new option to enable vnet support for
    filter-redirector
  net/net.c: Add vnet_hdr support in SocketReadState
  net/colo-compare.c: Add new option to enable vnet support for
    colo-compare
  net/colo.c: Make vnet_hdr_len as packet property
  net/colo-compare.c: Make colo-compare support vnet_hdr_len
  net/colo.c: Add vnet packet parse feature in colo-proxy
  net/colo-compare.c: Add vnet packet's tcp/udp/icmp compare
  net/filter-rewriter.c: Add new option to enable vnet support for
    filter-rewriter
  net/filter-rewriter.c: Make filter-rewriter support vnet_hdr_len

 include/net/net.h     |  11 +++++-
 net/colo-compare.c    |  99 ++++++++++++++++++++++++++++++++++++++---------
 net/colo.c            |   9 +++--
 net/colo.h            |   4 +-
 net/filter-mirror.c   | 104 +++++++++++++++++++++++++++++++++++++++++++++++---
 net/filter-rewriter.c |  55 +++++++++++++++++++++++++-
 net/net.c             |  38 ++++++++++++++++--
 net/socket.c          |   2 +-
 qemu-options.hx       |  17 +++++----
 9 files changed, 296 insertions(+), 43 deletions(-)

-- 
2.7.4