[Acx100-devel] [ acx100-Bugs-895630 ] start_net doesn't work with wep enabled

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Bugs item #895630, was opened at 2004-02-12 03:07
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Stefan Strigler (zeank)
Assigned to: Nobody/Anonymous (nobody)
Summary: start_net doesn't work with wep enabled

Initial Comment:
I'm using the latest start_net skript from cvs. Setting
the wep key before ifconfig is done didn't work for me.
Setting wep key after ifconfig configured the card did
work.

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Comment By: Nobody/Anonymous (nobody)
Date: 2004-03-06 13:31

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Using a driver build from current cvs-tree (as of march 3, 
2004), I found some related misbehavior in debug output: 
 
1.) acx100_interrupt is never called if WEP-key had been 
set before ifconfig had accessed the device. 
 
2.) issuing "iwconfig wlan0 key off" does result in a call 
to acx100_issue_cmd cmd 0x2, which in turn is setting the 
old key once more instead of (somehow) cancelling it. 
 
3.) if the accesspoint was offline before the WEP-key was 
set, the association is also not established, even if the 
ifconfig - related workaround was used. The difference is, 
that this time acx100_interrupt routine actually is 
getting called (with hw->state==0 (="started")) 
 
4.) Switching the AP off and on again does *not* destroy 
the association, if it was established before. After my 
understanding, the wep-intitalisation vector should be 
different, but I do not see any related reaction in debug 
output (level was set to 0xffff). 
 
 
It would be nice to include at least at this website some 
documentation on the acx100 software interface. Starring 
at the sources does not really help, and changes between 
the versions are not documented. For example: somebody 
changed hw->irq_mask  between pre6 and cvs-current from 
0xdfb5 to 0xdbb5, without any comment why he thinks that 
this is useful!  
 
TI does not provide any detailed information, neither on 
acx-100 nor on TNET W1100B, which is the controller I have 
found in my dlink-650+ pcmcia card. And Maxim, who should 
have produced my Maxim 2880 radio chip, provides exactly 
zero related documentation on their website. The whole 
assembly seems to be classified information -- strange! 
 
 
 
 
Regards 
 
hm  

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Comment By: Jochen Korb (jochenkorb)
Date: 2004-02-26 10:28

Message:
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While using 0.2.0pre7 release i had the same fault, but i 
managed it using the wep key in start_net in a different 
syntax:
128 bit wep key: KEY="1234-1234-1234-1234-12"
without the minus "-" it did not work!
i do not use any ifconfig only iwconfig or the start_net script.

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Comment By: Andreas Mohr (andim2)
Date: 2004-02-13 01:55

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Hmm, interesting. I'll have to check this. Maybe we're
forgetting to do something properly in the driver (init issues).

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