Wireless access point daemon, patched with ubus support
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Nicolas Escande 7b8517d197 nl80211: Fix AP scan with STA fallback error path
I've run into a case where I can bring a 2.4 GHz AP up without it being
in a bridge while I used the 'bridge=' config option. This happens when
the HT scan needed for 40 MHz operation failed to start from the get go
because another dev on the same phy was already in a scan. At the end
the AP is up and running but not added into any bridge.

Upon looking at the code, it seems that some hardware fails to issue a
scan while in AP and thus we have a fallback that switches the interface
from AP to STA before retrying another scan (it will change it back to
AP later on when finished). As we cannot have a (non-WDS) STA in a
bridge, during that procedure, we also remove/add the AP/STA from/to the
bridge as needed.

However, in wpa_driver_nl80211_scan() we do not set
drv->ap_scan_as_station until the end of the switch-to-sta &
retry-scan-start block. This means that when the recursive call to
wpa_driver_nl80211_scan() fails (the hardware is busy in my case) we
restore the interface to AP with wpa_driver_nl80211_set_mode() but that
will not add it back to the bridge. Problem.

To fix this lets always set drv->ap_scan_as_station before calling
wpa_driver_nl80211_set_mode(). In case wpa_driver_nl80211_set_mode() or
wpa_driver_nl80211_scan() fails lets call nl80211_restore_ap_mode() that
will set the mode back to AP but also handle the bridge thing as needed.

Signed-off-by: Nicolas Escande <nico.escande@gmail.com>
2024-07-12 16:44:30 +03:00
doc DBus: Add ANQP fields to BSS properties 2024-03-09 17:59:22 +02:00
eap_example build: Put archive files into build/ folder too 2020-10-11 11:16:00 +03:00
hostapd Fix channel switch without 'ht' for HE and EHT modes in 2.4 GHz band 2024-07-12 12:25:55 +03:00
hs20 EST: Write the RSA private key using the standard PRIVATE KEY format 2023-02-23 16:44:38 +02:00
radius_example build: Put archive files into build/ folder too 2020-10-11 11:16:00 +03:00
src nl80211: Fix AP scan with STA fallback error path 2024-07-12 16:44:30 +03:00
tests tests: NAN: Check USD publish type 2024-07-12 16:37:15 +03:00
wlantest wlantest: ICMP: Use sta_find_mlo() 2024-07-12 13:00:10 +03:00
wpa_supplicant NAN: Fix a typo in USD doc 2024-07-12 16:34:56 +03:00
wpadebug wpadebug: Allow WebView to parse and load clear text (HTTP) 2019-06-20 00:33:43 +03:00
wpaspy wpaspy: Do not mark not-existing UNIX domain socket as UDP 2021-03-01 12:51:20 +02:00
.gitignore gitignore: Remove obsolete mac80211_hwsim entry 2020-10-11 19:36:18 +03:00
Android.mk Android: Compile hs20-osu-client to /vendor/bin in test builds 2022-04-14 17:10:03 +03:00
build_release Drop OpenSSL 0.9.8 patches to add EAP-FAST support 2016-01-13 00:17:27 +02:00
CONTRIBUTIONS The main branch is now used for v2.11 development 2022-01-17 00:03:42 +02:00
COPYING Update copyright notices for the new year 2022 2022-01-16 22:51:29 +02:00
README Update copyright notices for the new year 2022 2022-01-16 22:51:29 +02:00

wpa_supplicant and hostapd
--------------------------

Copyright (c) 2002-2022, Jouni Malinen <j@w1.fi> and contributors
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