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[Qemu-devel] [PATCH v2 0/9] For QEMU 2.5: Add a netfilter object and net
From: |
Yang Hongyang |
Subject: |
[Qemu-devel] [PATCH v2 0/9] For QEMU 2.5: Add a netfilter object and netbuffer filter |
Date: |
Fri, 31 Jul 2015 12:13:25 +0800 |
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
MicroCheckpointing, to buffer/release packets. Or to simulate
packet delay.
Most of the changes of v2 are from Jason's comments.
You can also get the series from:
https://github.com/macrosheep/qemu/tree/netfilter-v2
Usage:
-netdev tap,id=bn0
-netfilter buffer,id=f0,netdev=bn0,chain=in,interval=1000
-device e1000,netdev=bn0
dynamically add/remove netfilters:
netfilter_add buffer,id=f0,netdev=bn0,chain=in,interval=1000
netfilter_del f0
NOTE:
interval's scale is microsecond.
chain is optional, and is one of in|out|all, default is "all".
"in" means this filter will receive packets sent to the @netdev
"out" means this filter will receive packets sent from the @netdev
"all" means this filter will receive packets both sent to/from
the @netdev
TODO:
- multiqueue support
- dump
v2:
- add a chain option to netfilter object
- move the hook place earlier, before net_queue_send
- drop the unused api in buffer filter
- squash buffer filter patches into one
- remove receive() api from netfilter, only receive_iov() is enough
- addressed comments from Jason&Thomas
v1:
initial patch.
Yang Hongyang (9):
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 net queue send
net/queue: export qemu_net_queue_append_iov
move out net queue structs define
netfilter: add a netbuffer filter
filter/buffer: update command description and help
hmp-commands.hx | 30 ++++++
hmp.c | 29 ++++++
hmp.h | 4 +
include/net/filter.h | 55 +++++++++++
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 | 160 ++++++++++++++++++++++++++++++
net/filter.c | 251 ++++++++++++++++++++++++++++++++++++++++++++++++
net/filters.h | 17 ++++
net/net.c | 105 +++++++++++++++++++-
net/queue.c | 31 ++----
qapi-schema.json | 100 +++++++++++++++++++
qemu-options.hx | 4 +
qmp-commands.hx | 57 +++++++++++
vl.c | 13 +++
19 files changed, 901 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
- [Qemu-devel] [PATCH v2 0/9] For QEMU 2.5: Add a netfilter object and netbuffer filter,
Yang Hongyang <=
- [Qemu-devel] [PATCH v2 2/9] init/cleanup of netfilter object, Yang Hongyang, 2015/07/31
- [Qemu-devel] [PATCH v2 4/9] net: add/remove filters from network backend, Yang Hongyang, 2015/07/31
- [Qemu-devel] [PATCH v2 3/9] netfilter: add netfilter_{add|del} commands, Yang Hongyang, 2015/07/31
- [Qemu-devel] [PATCH v2 1/9] net: add a new object netfilter, Yang Hongyang, 2015/07/31
- [Qemu-devel] [PATCH v2 7/9] move out net queue structs define, Yang Hongyang, 2015/07/31
- [Qemu-devel] [PATCH v2 8/9] netfilter: add a netbuffer filter, Yang Hongyang, 2015/07/31
- Re: [Qemu-devel] [PATCH v2 8/9] netfilter: add a netbuffer filter, Dr. David Alan Gilbert, 2015/07/31