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ctl_send_func question

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ctl_send_func question

Subject: ctl_send_func question
From: "Jamie Wood" <email@hidden>
Date: Tue, 15 Mar 2005 17:04:38 -0800

Hi,

I have a couple of questions about the ctl_write function that needs to be provided when registering a kernel control. The declaration looks like this:

int (*ctl_write) (kern_ctl_ref ctlref, void *userdata, struct mbuf *m); /* Send data to the controller, called when user client */ /* writes data to the socket */

My question is about the lifetime of the input mbuf chain. Will the caller of ctl_write free the mbuf chain after ctl_write returns, or does it assume that ctl_write will free the mbuf chain?

Also, is the first mbuf in the mbuf chain always (or never) a header mbuf?

Thanks,
Jamie


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