Date: Tue, 26 Aug 1997 19:15:22 +0200 (MET DST) From: Wilko Bulte <wilko@yedi.iaf.nl> To: tinguely@plains.NoDak.edu (Mark Tinguely) Cc: FreeBSD-Hackers@FreeBSD.ORG, Shimon@i-Connect.Net Subject: Re: Calling a Daemon from the Kernel - How? Message-ID: <199708261715.TAA00851@yedi.iaf.nl> In-Reply-To: <199708252318.SAA13305@plains.NoDak.edu> from "Mark Tinguely" at Aug 25, 97 06:18:11 pm
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As Mark Tinguely wrote... > > > How do I write a program that gets called from the kernel. > > I know how to write a program that call the kernel :-) > > I even know (some of you may argue with this) how to write a kernel driver > > that gets called form userspace :-) > > > > I want to write a daemon (or whatever) that gets called by the kernel to do > > sone dirty work I do not think belongs in the kernel. > > you really do not want the kernel to make a user space and exec (look at > the gross things the kernel needs to do to get init running). > > it be easier to make a raw socket interface for the communication and > have the daemon start in user space from something like /etc/rc.local. > A good example of this is mrouted. Or implement a ioctl that is called by the userspace thingy and get's blocked in the ioctl code until needed. Not nice, but works _ ____________________________________________________________________ | / o / / _ Bulte email: wilko@yedi.iaf.nl http://www.tcja.nl/~wilko |/|/ / / /( (_) Arnhem, The Netherlands - Do, or do not. There is no 'try' ----------------------------------------------------------------------Yoda
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