* ifdown on unregister for debian system
@ 2002-01-07 17:07 Fumitoshi UKAI
2002-01-07 17:36 ` Bill Nottingham
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: Fumitoshi UKAI @ 2002-01-07 17:07 UTC (permalink / raw)
To: linux-hotplug
Hi, I'm linux-hotplug debian package maintainer.
On debian system, ifup/ifdown keep status of interface status (up/down)
in ifstate database, so ifdown is necessary when network interface
unregistered. Unless ifdown is called, next registering net device
will fail because it was already up in ifstate database.
--- hotplug-0.0.20010919.orig/etc/hotplug/net.agent
+++ hotplug-0.0.20010919/etc/hotplug/net.agent
@@ -9,6 +9,7 @@
#
# HISTORY:
#
+# 30-Sep-2001 ifdown on unregister for debian system
# 25-Feb-2001 Special case ppp and similar (redhat)
# 23-Jan-2001 Log invocation of "ifup" if debugging
# 04-Jan-2001 Initial version of "new" hotplug agent.
@@ -45,13 +46,27 @@
debug_mesg invoke ifup $INTERFACE
exec /sbin/ifup $INTERFACE
else
- mesg "how do I bring interfaces up on this distro?"
+ # mesg "how do I bring interfaces up on this distro?"
+ mesg "E: /sbin/ifup not found. You need to install ifupdown package"
fi
;;
esac
mesg $1 $ACTION event not handled
;;
+unregister)
+ # Assume that we want to run ifdown no matter what,
+ # because it's not going to remove the data from the
+ # ifstate database otherwise.
+ if [ -x /sbin/ifdown ]; then
+ debug_mesg invoke ifdown $INTERFACE
+ exec /sbin/ifdown $INTERFACE
+ else
+ # mesg "how do I bring interfaces up on this distro?"
+ mesg "E: /sbin/ifdown not found. You need to install ifupdown package"
+ fi
+ mesg $1 $ACTION event not handled
+ ;;
*)
debug_mesg NET $ACTION event not supported
exit 1 ;;
Regards,
Fumitoshi UKAI
_______________________________________________
Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: ifdown on unregister for debian system
2002-01-07 17:07 ifdown on unregister for debian system Fumitoshi UKAI
@ 2002-01-07 17:36 ` Bill Nottingham
2002-01-07 17:41 ` Fumitoshi UKAI
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Bill Nottingham @ 2002-01-07 17:36 UTC (permalink / raw)
To: linux-hotplug
Fumitoshi UKAI (ukai@debian.or.jp) said:
> On debian system, ifup/ifdown keep status of interface status (up/down)
> in ifstate database, so ifdown is necessary when network interface
> unregistered. Unless ifdown is called, next registering net device
> will fail because it was already up in ifstate database.
This patch:
a) refers to a debian-specific package
b) refers to debian-specific ifdown behavior
Is there any chance it could be cleaned up, or kept as a debian-specifc
diff?
Bill
_______________________________________________
Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: ifdown on unregister for debian system
2002-01-07 17:07 ifdown on unregister for debian system Fumitoshi UKAI
2002-01-07 17:36 ` Bill Nottingham
@ 2002-01-07 17:41 ` Fumitoshi UKAI
2002-01-07 17:44 ` Bill Nottingham
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Fumitoshi UKAI @ 2002-01-07 17:41 UTC (permalink / raw)
To: linux-hotplug
At Mon, 7 Jan 2002 12:36:05 -0500,
Bill Nottingham wrote:
>
> Fumitoshi UKAI (ukai@debian.or.jp) said:
> > On debian system, ifup/ifdown keep status of interface status (up/down)
> > in ifstate database, so ifdown is necessary when network interface
> > unregistered. Unless ifdown is called, next registering net device
> > will fail because it was already up in ifstate database.
>
> This patch:
> a) refers to a debian-specific package
> b) refers to debian-specific ifdown behavior
>
> Is there any chance it could be cleaned up, or kept as a debian-specifc
> diff?
debian's ifup/ifdown uses /etc/network/ifstate for status database.
How about checking the /etc/network/ifstate file existance to run ifdown?
Regards,
Fumitoshi UKAI
_______________________________________________
Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: ifdown on unregister for debian system
2002-01-07 17:07 ifdown on unregister for debian system Fumitoshi UKAI
2002-01-07 17:36 ` Bill Nottingham
2002-01-07 17:41 ` Fumitoshi UKAI
@ 2002-01-07 17:44 ` Bill Nottingham
2002-01-07 17:59 ` David Brownell
2002-01-07 18:05 ` David Brownell
4 siblings, 0 replies; 6+ messages in thread
From: Bill Nottingham @ 2002-01-07 17:44 UTC (permalink / raw)
To: linux-hotplug
Fumitoshi UKAI (ukai@debian.or.jp) said:
> > This patch:
> > a) refers to a debian-specific package
> > b) refers to debian-specific ifdown behavior
> >
> > Is there any chance it could be cleaned up, or kept as a debian-specifc
> > diff?
>
> debian's ifup/ifdown uses /etc/network/ifstate for status database.
> How about checking the /etc/network/ifstate file existance to run ifdown?
That could work, I suppose.
The situation on Red Hat is that ifdown is used to bring down the
network interface; if you've gotten the unregister event from the
driver, that means the network interface is already down, so running
ifdown doesn't gain you much.
Bill
_______________________________________________
Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: ifdown on unregister for debian system
2002-01-07 17:07 ifdown on unregister for debian system Fumitoshi UKAI
` (2 preceding siblings ...)
2002-01-07 17:44 ` Bill Nottingham
@ 2002-01-07 17:59 ` David Brownell
2002-01-07 18:05 ` David Brownell
4 siblings, 0 replies; 6+ messages in thread
From: David Brownell @ 2002-01-07 17:59 UTC (permalink / raw)
To: linux-hotplug
That sounds about right.
My understanding -- please correct if appropriate! -- is that
for the moment, distros have "agreed to disagree" about
details of network administration, at this level,
So I believe that logic along the lines of "if [ distro is X] ..."
is unfortunately appropriate in these cases. Maybe in
a few years we'll have more convergence, which hotplug
can be a part of ... :)
- Dave
----- Original Message -----
From: "Fumitoshi UKAI" <ukai@debian.or.jp>
To: "Bill Nottingham" <notting@redhat.com>
Cc: <linux-hotplug-devel@lists.sourceforge.net>
Sent: Monday, January 07, 2002 9:41 AM
Subject: Re: ifdown on unregister for debian system
> At Mon, 7 Jan 2002 12:36:05 -0500,
> Bill Nottingham wrote:
> >
> > Fumitoshi UKAI (ukai@debian.or.jp) said:
> > > On debian system, ifup/ifdown keep status of interface status (up/down)
> > > in ifstate database, so ifdown is necessary when network interface
> > > unregistered. Unless ifdown is called, next registering net device
> > > will fail because it was already up in ifstate database.
> >
> > This patch:
> > a) refers to a debian-specific package
> > b) refers to debian-specific ifdown behavior
> >
> > Is there any chance it could be cleaned up, or kept as a debian-specifc
> > diff?
>
> debian's ifup/ifdown uses /etc/network/ifstate for status database.
> How about checking the /etc/network/ifstate file existance to run ifdown?
>
> Regards,
> Fumitoshi UKAI
>
_______________________________________________
Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: ifdown on unregister for debian system
2002-01-07 17:07 ifdown on unregister for debian system Fumitoshi UKAI
` (3 preceding siblings ...)
2002-01-07 17:59 ` David Brownell
@ 2002-01-07 18:05 ` David Brownell
4 siblings, 0 replies; 6+ messages in thread
From: David Brownell @ 2002-01-07 18:05 UTC (permalink / raw)
To: linux-hotplug
> The situation on Red Hat is that ifdown is used to bring down the
> network interface;
... or hardware level actions like usb disconnect and cardbus eject.
> if you've gotten the unregister event from the
> driver, that means the network interface is already down, so running
> ifdown doesn't gain you much.
Actually for the 2.5 series I'd like to see someone look at
some of these issue some more ... there's inconsistency
in how the various network interfaces behave, as shown
by all the name-based special cases. History ... :)
- Dave
_______________________________________________
Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel
^ permalink raw reply [flat|nested] 6+ messages in thread
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2002-01-07 17:07 ifdown on unregister for debian system Fumitoshi UKAI
2002-01-07 17:36 ` Bill Nottingham
2002-01-07 17:41 ` Fumitoshi UKAI
2002-01-07 17:44 ` Bill Nottingham
2002-01-07 17:59 ` David Brownell
2002-01-07 18:05 ` David Brownell
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