[FS#1468] hostapd spams log

[LEDE Bugs]

The following task has a new comment added:

FS#1468 - hostapd spams log
User who did this - arl (arlit)

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**The following issue is not reproducible using r6501-745d0e7f4b and is likely a software regression: **

On r6671-f5195e72c0 hostapd handling of (Allow) MAC-ACL changed after [[https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=eba3b028e46dbfe54f1208e9edf47bb0c6f73ac8|commit eba3b028e4]] and it is now over-flooding syslog with multiple "notice" messages per second (see quote): 

Thu Apr 12 15:53:20 2018 daemon.notice hostapd: Station BB:BB:BB:BB:BB:BB not allowed to authenticate
Thu Apr 12 15:53:20 2018 daemon.notice hostapd: Station CC:CC:CC:CC:CC:CC not allowed to authenticate
Thu Apr 12 15:53:20 2018 daemon.notice hostapd: Station DD:DD:DD:DD:DD:DD not allowed to authenticate    

Please note that authentication attempts of wifi-clients (Stations) not listed in the Allow MAC-ACL result in slightly different output in syslog (see quote):  

Thu Apr 12 15:52:10 2018 daemon.notice hostapd: Station AA:AA:AA:AA:AA:AA not allowed to authenticate
Thu Apr 12 15:52:10 2018 daemon.notice hostapd: handle_auth_cb: STA AA:AA:AA:AA:AA:AA not found 

All "Not allowed to authenticate" messages overflooding hostapd  are not coupled with same-MAC  "handle_auth_cb" messages; As far I understand this means hostapd spams syslog while no actual connection attempt is really occurring.
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1468#comment4579