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Re: [PATCH] ath5k: add support of HW encryption in management frames

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On Tue, 2012-09-04 at 19:25 +0800, Yeoh Chun-Yeow wrote:
> Hi, Jouni
> 
> I have retested with the following:
> 
> case 1 with submitted patch:
> mesh1: ath5k nohwcrypt=1
> mesh2: ath5k (no IEEE80211_KEY_FLAG_SW_MGMT)
> Result: Both of them are not able to ping each other. Also, the PREP
> action frame is not able to decrypted by another node.
> 
> case 2 with submitted patch:
> mesh1: ath5k nohwcrypt=1
> mesh2: ath5k nohwcrypt=1
> Result: They are able to ping each other.
> 
> case 3 with submitted patch but enable IEEE80211_KEY_FLAG_SW_MGMT:
> mesh1: ath5k nohwcrypt=1
> mesh2: ath5k (with IEEE80211_KEY_FLAG_SW_MGMT)
> Result: They are able to ping each other
> 
> case 4 with submitted patch but enable IEEE80211_KEY_FLAG_SW_MGMT:
> mesh1: ath5k (with IEEE80211_KEY_FLAG_SW_MGMT)
> mesh2: ath5k (with IEEE80211_KEY_FLAG_SW_MGMT)
> Result: Both of them are not able to ping each other. Also, the PREP
> action frame is not able to decrypted by another node.
> 
> So can we conclude that hardware encryption is not working for both
> robust unicast management frame and also unicast
> data frame? I am confuse why on case 4, it is not working?

I would guess that hardware *decryption* is faulty, maybe only one
action frame needs to be correct and so if one of them is nohwcrypt=1 it
still works?

johannes

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