No DHCP lease with iwi(4)/wlan(4); works with an(4) at r197399

[David Wolfskill]

On Fri, Sep 25, 2009 at 09:24:03AM -0700, David Wolfskill wrote:
> ...
> But I did find one rather curious thing:  I was able to get the
> iwi(4) to work OK (while running head) with one of my access points;
> it's the other that seems to have an issue with iwi(4) under head.
> 
> I have 2 different access points at home:
> * An original Apple Airport
> * A Linksys WAP-11.
> (Each is, within the bounds of their rather different natures,
> configured the same except for channel: One is on channel 1; the other
> is on channel 6.  Neither is a DHCP server: each merely passes the DHCP
> traffic.)
> 
> Under stable/6 and stable/7, each works fine with iwi(4).
> 
> Under head (presently at r197479), the Linksys WAP-11 works (associates
> & dhclient(8) negotiates a DHCP lease using iwi(4)/wlan(4)).
> 
> Under head, the Apple Airport associates, but dhclient(8) cannot see a
> DHCP offer via iwi(4)/wlan(4). 
>...

This morning, after upgrading head to r199179, I now cannot get a DHCP
lease using teh Linksys WAP-11.

Prior to the upgrade, I was last running head r199134, which was able to
get a DHCP lease from teh Linksys WAP-11.

uname strings:

FreeBSD g1-106.catwhisker.org 9.0-CURRENT FreeBSD 9.0-CURRENT #1172 r199134: Tue Nov 10 10:47:11 PST 2009     root at d254.dwolf.juniper.net.:/common/S4/obj/usr/src/sys/CANARY  i386

FreeBSD  9.0-CURRENT FreeBSD 9.0-CURRENT #1173 r199179: Wed Nov 11 06:50:22 PST 2009     root at g1-106.catwhisker.org:/common/S4/obj/usr/src/sys/CANARY  i386

[The latter has no current hostname, since dhclient-exit-hooks
didn't get an IP address.]

I verified that the iwi0/wlan0 NIC did associate first.  I recall
the UPDATING entry from a couple of days ago:

20091109:
        The layout of the structure ieee80211req_scan_result has changed.
        Applications that require wireless scan results (e.g. ifconfig(8))
        from net80211 need to be recompiled.

and admit that I did the upgrade with -DNOCLEAN.  But it worked OK
for the upgrade yesterday -- and I don't expect that I actually use
scan results in any case.  (Recall that association still works.)

Peace,
david
-- 
David H. Wolfskill				david at catwhisker.org
Depriving a girl or boy of an opportunity for education is evil.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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