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.

V5:
 - patch1: No change.
 - patch2: Keep the long line in qemu-option.hx.
           Squash patch2 into old patch3.
           Add more comments.
           Fix the return value.
 - patch3: Add more comments in commit log.
 - patch4: Add Suggested-by tag.
           Fix commit log.
           Move vnet_hdr to SocketReadState.
 - patch5: No change.
 - patch6: Squash old patch6 into this patch. 
 - patch7: No change.
 - patch8: Remove the offset_all.
 - patch9: Squash old patch11 and the patch12.


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 (9):
  net: Add vnet_hdr_len related arguments in NetClientState
  net/filter-mirror.c: Make filter mirror 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.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: Make filter-rewriter support vnet_hdr_len

 include/net/net.h     |   8 +++-
 net/colo-compare.c    |  92 +++++++++++++++++++++++++++++++++++++------
 net/colo.c            |   9 +++--
 net/colo.h            |   4 +-
 net/filter-mirror.c   | 107 +++++++++++++++++++++++++++++++++++++++++++++++---
 net/filter-rewriter.c |  55 +++++++++++++++++++++++++-
 net/net.c             |  35 +++++++++++++++--
 qemu-options.hx       |  19 +++++----
 8 files changed, 291 insertions(+), 38 deletions(-)

-- 
2.7.4