Date: Wed, 19 Jul 2000 19:12:39 +0100 From: Brian Somers <brian@Awfulhak.org> To: Martin Husemann <martin@rumolt.teuto.de> Cc: drt@ailis.de (Doobee R . Tzeck), freebsd-isdn@FreeBSD.org, brian@Awfulhak.org Subject: Re: Calling a programm *before* the line is taken down. Message-ID: <200007191812.TAA01101@hak.lan.Awfulhak.org> In-Reply-To: Message from Martin Husemann <martin@rumolt.teuto.de> of "Fri, 14 Jul 2000 16:06:33 %2B0200." <200007141406.e6EE6XO00380@rumolt.teuto.de>
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The correct way (or one of them anyway) to handle this sort of thing
is with the time-remaining stuff specified for ppp in rfc1570. It's
been on my todo list for a long time....
> > It seems to me, I have to find all calls to N_DISCONNECT_REQUEST in i4bdrv.c
> > and i4bl4.c and chage them to sending a special Message like
> > WILL_DISCONECT_IND to userland, wait 5 seconds and then disconnect.
>
> I'm not sure this will work at this level: think of sudden ISDN disconnects
> (i.e. the famous cleaning woman pulling the line)
>
> What you need is a notification from ispp before it changes IPCP state to down,
> but that may be too late too.
>
> If you are just concernd about isdnd's idle timeout: simple add another
> timer triggering an adjustable time before the idle timeout occurs and set
> a special flag noting that the connection is going to drop now (idle timeout
> will not fire, because you are causing network traffic again).
>
> Or add an external program that is queried on idle timeout, returning either
> 0 (we may shut down the connection) or some error code (no, let's stay online).
>
>
> Martin
--
Brian <brian@Awfulhak.org> <brian@[uk.]FreeBSD.org>
<http://www.Awfulhak.org>; <brian@[uk.]OpenBSD.org>
Don't _EVER_ lose your sense of humour !
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