[brooks@FreeBSD.ORG: [src] cvs commit: src/etc pccard_ether]
brooks at one-eyed-alien.net
Wed Sep 28 16:50:38 PDT 2005
On Wed, Sep 28, 2005 at 05:14:17PM -0600, Warner Losh wrote:
> > I've just committed the following change to /etc/pccard_ether. I think
> > it's the right solution, but I'm concerned it may cause problems with
> > drivers that incorrectly frob the IFF_UP flag themselves. If so it may
> > be nessicary to revert this change temporarily or at least not MFC it.
> This change converts the "I already have an address" check to be a
> "I'm up" which are two different things. dhclient leaves the
> interface up when it exits, even if it can't get an address. I think
> that might cause a lot of problems for people. I originally had this
> test in pccard_ether, but changed it to checking for netmask because
> roving from network to network didn't work without it on my laptop
> with multiple network interfaces.
I don't think dhclient's behavior will have any effect in the normal
case. "pccard_ether <ifn> start" is only called on attach. It is not
involved in any with the link state transitions caused by roving since
those should not happen until after attach. The one POLA violation I
can see is that you probably can't manually run pccard_ether's start
mode twice without performing a stop first.
Any statement of the form "X is the one, true Y" is FALSE.
PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4
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