[Qemu-devel] [PATCH 00/12] For QEMU 2.5: Add a netfilter object and netbuffer filter

[Yang Hongyang]

I do not take this as v2 because the design of this has been changed,
and code is rewritten. according to thread:
http://lists.nongnu.org/archive/html/qemu-devel/2015-07/msg05445.html

This patch add a new object netfilter, capture all network packets.
Also implement a netbuffer based on this object.
the "buffer" netfilter could be used by VM FT solutions like
Macrocheckpointing, to buffer/release packets. Or to simulate
packet delay.

Usage:
 -netdev tap,id=bn0
 -netfilter buffer,id=f0,netdev=bn0,interval=1000
 -device e1000,netdev=bn0

dynamically add/remove netfilters:
 netfilter_add buffer,id=f0,netdev=bn0,interval=1000
 netfilter_del f0

TODO:
 - multiqueue support
 - dump

Yang Hongyang (12):
  net: add a new object netfilter
  init/cleanup of netfilter object
  netfilter: add netfilter_{add|del} commands
  net: add/remove filters from network backend
  netfilter: hook packets before receive
  netfilter: provide a compat receive_iov
  net/queue: export qemu_net_queue_append
  move out net queue structs define
  netfilter: add a netbuffer filter
  netbuffer: add a public api filter_buffer_release_all
  filter/buffer: add an interval option to buffer filter
  filter/buffer: update command description and help

 hmp-commands.hx         |  30 ++++++
 hmp.c                   |  29 ++++++
 hmp.h                   |   4 +
 include/net/filter.h    |  59 +++++++++++
 include/net/net.h       |   8 ++
 include/net/queue.h     |  26 +++++
 include/qemu/typedefs.h |   1 +
 include/sysemu/sysemu.h |   1 +
 monitor.c               |  33 ++++++
 net/Makefile.objs       |   2 +
 net/filter-buffer.c     | 192 ++++++++++++++++++++++++++++++++++
 net/filter.c            | 270 ++++++++++++++++++++++++++++++++++++++++++++++++
 net/filters.h           |  17 +++
 net/net.c               | 103 +++++++++++++++++-
 net/queue.c             |  31 ++----
 qapi-schema.json        |  86 +++++++++++++++
 qemu-options.hx         |   4 +
 qmp-commands.hx         |  55 ++++++++++
 vl.c                    |  13 +++
 19 files changed, 938 insertions(+), 26 deletions(-)
 create mode 100644 include/net/filter.h
 create mode 100644 net/filter-buffer.c
 create mode 100644 net/filter.c
 create mode 100644 net/filters.h

-- 
1.9.1