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special handling before ndo_start_xmit() been invoked

DISCUSSION jiangtao.jit 2 participants 3 messages Jul 27, 2011 – Jul 30, 2011

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jiangtao.jit

author
#0 lore raw

Hi all:

in struct net_device
there is a function pointer rx_handler_func_t __rcu *rx_handler
it's very convenient to register a function in an externel module and do some special handlings

so i think what about to add an tx_handler_func
before ndo_start_xmit() been invoked
and do some special things before transmit

is it necessary or there is already some other better methods to achieve this goal ? Thank you all

-------
2011-07-27
jiangtao.jit

#1 lore raw

What would you want to achieve with that?

Quoted 22 lines · Wed, Jul 27, 2011 at 12:48:37PM CEST, [email protected] wrote:

Hi all:

in struct net_device
there is a function pointer rx_handler_func_t __rcu *rx_handler
it's very convenient to register a function in an externel module and do some special handlings

so i think what about to add an tx_handler_func
before ndo_start_xmit() been invoked
and do some special things before transmit

is it necessary or there is already some other better methods to achieve this goal ? Thank you all

-------
2011-07-27
jiangtao.jit

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author
#2 lore raw
In reply to jiangtao.jit

Jiri:

1. do some filter rules implemented in an externl module without NF_HOOK on a bridge
2. output skb through NIC and virtual net_devices
3. mirror a port

and so on.

2011-07-30
jiangtao.jit

发件人： Jiri Pirko
发送时间： 2011-07-29 03:38:03
收件人： jiangtao.jit
抄送： netdev
主题： Re: special handling before ndo_start_xmit() been invoked

What would you want to achieve with that?

Quoted 22 lines · Wed, Jul 27, 2011 at 12:48:37PM CEST, [email protected] wrote:

Hi all:

in struct net_device
there is a function pointer rx_handler_func_t __rcu *rx_handler
it's very convenient to register a function in an externel module and do some special handlings

so i think what about to add an tx_handler_func
before ndo_start_xmit() been invoked
and do some special things before transmit

is it necessary or there is already some other better methods to achieve this goal ? Thank you all

-------
2011-07-27
jiangtao.jit

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