Re: [PATCH] allow updating Time Advertisement

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 3/8/19 4:07 PM, Jouni Malinen wrote:
> On Thu, Mar 07, 2019 at 03:47:06PM +0100, Zefir Kurtisi wrote:
>> Once the Time Advertisement elements are set,
>> subsequent calls of hostapd_eid_time_adv()
>> won't update the WLAN_EID_TIME_ADVERTISEMENT
>> data, causing the propagated time to remain
>> at its initial value during the whole
>> lifetime of the AP.
> 
> Which is by design and needed for correct functionality..
> 
>> This change allows updating the time whenever
>> this function is called.
> 
> This would break the advertised time information. hostapd supports only
> the option of UTC time at TSF timer 0, i.e., at the time the BSS was
> started. If hostapd_update_time_adv() is called again during the
> lifetime of the BSS, the advertised time would be changed to be the
> current time at the time this call happened which would not be the time
> at TSF 0.
> 
> If this change would be needed for some purpose,
> hostapd_update_time_adv() would need to be modified to address the FIX
> comment there regarding fetching the current TSF value and updating the
> time stamp based on that information.
> 
Thanks for the explanation. I did not notice the relevant comment in
hostapd_update_time_adv().

Cheers,
Zefir

_______________________________________________
Hostap mailing list
Hostap@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/hostap



[Index of Archives]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux