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Re: NKE Manager
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Re: NKE Manager

On Friday, October 11, 2002, at 06:32 PM, Joshua Graessley wrote:

> In Mac OS X 10.2, the header sys/kern_control.h defines the
> AF_SYS_CONTROL protocol of PF_SYSTEM. This can be used to communicate
> with and control kernel extensions. It has some limitations.
> sys/kern_control.h has some documentation that should help you get
> started. Unlike the NKE manager (PF_NKE), there is no sample code.

Thanks Josh (and Justin), this has been helpful.

Because my NKE needs the ability to distinguish multiple channels (for
the lack of a better term) I've decided to go with PF_SYSTEM as Josh
described. It supports the concept of a unit number (per NKE signature)
and that's just what I need.

The header sys/kern_control.h is pretty complete as to the use of the
API but I have one question. When userland code writes data to the NKE
and its ctl_write() function is called is the NKE responsible for
freeing the mbuf? My hunch is yes since it's consuming the buffer (ie:
not passing it on to anything else) but I wanted to confirm.

Thanks,
Mike
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References: 
 >Re: NKE Manager (From: Joshua Graessley <email@hidden>)



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