LIB80211_CRYPT_TKIP unavailable in kernel > 2.6.30

01 · n00b Joined: 03 Aug 2009 Posts: 7

Hi,

Probably a stupid question but I can't get my Wifi Driver working (doesn't connect to encrypted networks) due to, I think, a missing option in Kernel config.
The Wifi driver I use is the proprietary broadcom-sta package, which builds fine.

ifconfig shows me the interface, but it can't get the IP from the access point. (I get it working with kernel 2.6.2

.

It seems broadcom needs Networking Support > Wireless > Common routines for IEEE802.11 drivers.
I enable it as a module, but I don't see options related to TKIP/CCMP and various encryption methods.
I can search for that option, it says :

erik258 · Posted: Mon Aug 03, 2009 11:53 pm Post subject:

HI,

it appears that those options were removed; whether they were depreciated, automatically selected, or what I can't discover although I looked around online a little. Anyway they're certainly not in my kernel either (2.6.30) - oh, and I'm using wpa just fine.

two things - first, there's an open source wireless driver for your card that apparently works well, called b43. if the kernel changed in a way that is incompatible with those closed-source broadcom drivers, it's a good bet that broadcom isn't being kept up at night worrying about making their driver compatible with the newest kernel versions. you might want to try this open source driver instead as it's more likely to stay compatible and current than broadcom's offerings are.

second, my wpa didn't work until I turned on CONFIG_CR YPTO_MICHAEL_MIC in 'Cryptographic API'. Perhaps it could help you too, and a lot less work than migrating away from those icky proprietary drivers ; )
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Gusar · Posted: Tue Aug 04, 2009 10:27 am Post subject:

I have an ipw2195, which uses the ipw2200 driver. The option you need is automatically selected in my kernel config. In "make xconfig" I can only see it if I select "Show All Options" in the Options menu. http://img91.imageshack.us/img91/7356/kernelwirelessconfig.png
Not sure how much this helps. But it does show that the option exists.

01 · n00b Joined: 03 Aug 2009 Posts: 7

Thanks a lot for your answers,

I wish I could have used the opensource driver, unfortunately my specific chipset isn't supported, either by b43 or b43legacy.

erik258 · Posted: Tue Aug 04, 2009 10:57 pm Post subject:

oooh, 2.6.31! The future... fancy.

Good work, and enjoy the latest and greatest release cantidate. I'm sorry to hear you can't use b43, but glad that broadcom has been kind about compatibility.
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cach0rr0 · Posted: Wed Aug 05, 2009 3:34 am Post subject:

njsg · Tux's lil' helper Joined: 17 Dec 2005 Posts: 88

Sorry for waking up a months-old thread, but it seems this issue is still alive, and I'm having trouble with the configuration hack:

I can enable HOSTAP, NETDEVICES and WLAN_80211. And probably LIBIPW too, but S390, which has no documentation and is not acessible, is set (the search lists S390 [=S390]).

I suppose this is why LIB80211_CRYPT_TKIP is never enabled. Does anyone know what is S390? Based on some web searches, it is an architecture. As I'm using AMD64, I doubt it should be set, but it is.

[quote="01"]
[code]
Symbol: LIB80211_CRYPT_TKIP [=n]
Selected by: LIBIPW && NETDEVICES && !S390 && PCI && WLAN_80211 || HOSTAP && NETDEVICES && !S390 && WLAN_80211
[/code]
[/quote]

TIA