iwn(4) and WEP

Adrian Chadd adrian at freebsd.org
Sat Mar 15 04:44:58 UTC 2014


Ok. Please file prs for this.

I'm glad you all have debugged this!

Adrian
 On Mar 14, 2014 9:43 PM, "Sean Bruno" <sbruno at ignoranthack.me> wrote:

> On Fri, 2014-03-14 at 21:31 -0700, Adrian Chadd wrote:
> > What other drivers are missing this?
> >
> >
> > Adrian
> >
>
> From my quick search, many of the older ones.
>
> The list is quicker if we talk about the ones that *do* have it:
>
> ath(4)
> run(4)
> mwl(4)
> ndis(4)
> wi(4)
>
> It looks like the capabilities struct defines that the driver/hardware
> will provide to wpa_supplicant.
>
> Using the pre-2.0 wpa_supplicant seems to work with iwn(4) as well.
>
> sean
>
>
>
>
> >
> > On Mar 14, 2014 7:52 PM, "Sean Bruno" <sbruno at ignoranthack.me> wrote:
> >         It looks like the wpa_supplicant 2.0 import now checks the
> >         cryptocapability mask when trying to validate WEP usage.
> >
> >         iwn(4) does not populate the mask with any values so
> >         wpa_supplicant sees
> >         a value of 0.
> >
> >         I added the capabilites and can associate, but dhclient cannot
> >         get an IP
> >         from the AP.  I assume then, that once again, I don't know
> >         what I'm
> >         doing.
> >
> >         More or less, this is what I tried:
> >
> >         Index: if_iwn.c
> >
> ===================================================================
> >         --- if_iwn.c    (revision 263173)
> >         +++ if_iwn.c    (working copy)
> >         @@ -564,6 +564,8 @@
> >                         | IEEE80211_C_PMGT              /*
> >         Station-side power mgmt */
> >                         ;
> >
> >         +        ic->ic_cryptocaps = IEEE80211_CRYPTO_WEP;
> >         +
> >                 /* Read MAC address, channels, etc from EEPROM. */
> >                 if ((error = iwn_read_eeprom(sc, macaddr)) != 0) {
> >                         device_printf(dev, "could not read EEPROM,
> >         error %d\n",
> >
> >
> >         sean
> >
> >         p.s. Allan Jude came up with a hack for wpa_supplicant that
> >         seems to
> >         work, so I've bcc'd him here to get a patch out of him.
>
>


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