iwn(4) and WEP

[Sean Bruno]

On Fri, 2014-03-14 at 21:44 -0700, Adrian Chadd wrote:
> Ok. Please file prs for this.
> 
> I'm glad you all have debugged this!
> 
> 
> Adrian
> 

Well, there's the rub.

Allan's patch works, mine will associate, but passes no traffic.    :-)

sean


> 
> 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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