Multiple BSSes specified in BSS-config

yogo1212 · May 1, 2020, 7:41am

I'm facing these log messages on a tl-wdr4300 (trunk):

Fri May  1 06:56:48 2020 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy nw0-1)
Fri May  1 06:56:48 2020 daemon.err hostapd: Multiple BSSes specified in BSS-config
Fri May  1 06:56:48 2020 daemon.notice netifd: radio24_0 (26729): Command failed: Invalid argument
Fri May  1 06:56:48 2020 daemon.notice netifd: radio24_0 (26729): WARNING (wireless_add_process): executable path /usr/sbin/wpad does not match process  path (/proc/exe)
Fri May  1 06:56:48 2020 daemon.notice netifd: radio24_0 (26729): Command failed: Invalid argument
Fri May  1 06:56:49 2020 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy1.conf (phy nw1-1)
Fri May  1 06:56:49 2020 daemon.err hostapd: Multiple BSSes specified in BSS-config
Fri May  1 06:56:49 2020 daemon.notice netifd: radio5_0 (26737): Command failed: Invalid argument
Fri May  1 06:56:49 2020 daemon.notice netifd: radio5_0 (26737): WARNING (wireless_add_process): executable path /usr/sbin/wpad does not match process  path (/proc/exe)
Fri May  1 06:56:49 2020 daemon.notice netifd: radio5_0 (26737): Command failed: Invalid argument

the configuration is generated from /etc/config/wireless.
does anyone have an idea what could be going wrong?

uci wireless:


config wifi-device 'radio24_0'
	option type 'mac80211'
	option channel '11'
	option hwmode '11g'
	option path 'platform/ahb/18100000.wmac'
	option htmode 'HT20'
	option country 'DE'
	option phyref 'phy0'

config wifi-device 'radio5_0'
	option type 'mac80211'
	option channel '36'
	option hwmode '11a'
	option path 'pci0000:00/0000:00:00.0'
	option country 'DE'
	option phyref 'phy1'
	option htmode 'HT40'

config wifi-iface 'w0_1'
	option mode 'ap'
	option ifname 'nw0-1'
	option device 'radio24_0'
	option network 'n_1'
	option encryption 'psk2'
	option isolate '0'
	option hidden '0'
	option key 'xxxxxxxx'
	option ssid 'mpsk test'

config wifi-iface 'w1_1'
	option mode 'ap'
	option ifname 'nw1-1'
	option device 'radio5_0'
	option network 'n_1'
	option encryption 'psk2'
	option isolate '0'
	option hidden '0'
	option key 'xxxxxxxx'
	option ssid 'mpsk test'

config wifi-iface 'w0_47f'
	option mode 'ap'
	option ifname 'w0-47f'
	option device 'radio24_0'
	option network 'n_734'
	option encryption 'none'
	option isolate '1'
	option hidden '0'
	option ssid 'prod open'

config wifi-iface 'w1_47f'
	option mode 'ap'
	option ifname 'w1-47f'
	option device 'radio5_0'
	option network 'n_734'
	option encryption 'none'
	option isolate '1'
	option hidden '0'
	option ssid 'prod open'

config wifi-iface 'w0_8ed'
	option mode 'ap'
	option ifname 'w0-8ed'
	option device 'radio24_0'
	option network 'n_1'
	option encryption 'psk2'
	option isolate '0'
	option hidden '0'
	option key 'xxxxxxxxxxxx'
	option ssid 'private'

config wifi-iface 'w1_8ed'
	option mode 'ap'
	option ifname 'w1-8ed'
	option device 'radio5_0'
	option network 'n_1'
	option encryption 'psk2'
	option isolate '0'
	option hidden '0'
	option key 'xxxxxxxxxxxx'
	option ssid 'private'

config wifi-iface 'w0_98a'
	option mode 'ap'
	option ifname 'w0-98a'
	option device 'radio24_0'
	option network 'n_734'
	option encryption 'psk2'
	option isolate '1'
	option hidden '0'
	option key 'xxxxxxxxxxxx'
	option ssid 'Wehlan'

config wifi-iface 'w1_98a'
	option mode 'ap'
	option ifname 'w1-98a'
	option device 'radio5_0'
	option network 'n_734'
	option encryption 'psk2'
	option isolate '1'
	option hidden '0'
	option key 'xxxxxxxxxxxx'
	option ssid 'Wehlan'

config wifi-iface 'w0_9'
	option mode 'ap'
	option ifname 'w0-9'
	option device 'radio24_0'
	option network 'n_1'
	option encryption 'psk2'
	option isolate '0'
	option hidden '0'
	option key 'xxxxxxxxxxx'
	option ssid 'schedule'

config wifi-iface 'w1_9'
	option mode 'ap'
	option ifname 'w1-9'
	option device 'radio5_0'
	option network 'n_1'
	option encryption 'psk2'
	option isolate '0'
	option hidden '0'
	option key 'xxxxxxxxxxx'
	option ssid 'schedule'

config wifi-iface 'mesh0'
	option ifname 'mesh0'
	option device 'radio24_0'
	option network 'mesh0'
	option mode 'adhoc'
	option encryption 'psk2'
	option ssid 'nom'
	option bssid '02:BA:CC:11:55:90'
	option key 'xxxxxxxxxxxxxxxx'

config wifi-iface 'mesh1'
	option ifname 'mesh1'
	option device 'radio5_0'
	option network 'mesh1'
	option mode 'adhoc'
	option encryption 'psk2'
	option ssid 'nom'
	option bssid '02:BA:CC:11:55:90'
	option key 'xxxxxxxxxxxxxxxx'

hostapd-phy0.conf:

driver=nl80211
logger_syslog=127
logger_syslog_level=2
logger_stdout=127
logger_stdout_level=2
country_code=DE
ieee80211d=1
hw_mode=g
beacon_int=100
dtim_period=2
channel=11

noscan=1

ieee80211n=1
ht_coex=0
ht_capab=[LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40]

radio_config_id=836304575238177feb8d5b96dd3db342
interface=nw0-1
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=mpsk test
bridge=br-n_1
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=111530b7ee9c5b9024ba3bd80980e101
bssid=xx:xx:xx:xx:xx:xx


bss=w0-47f
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
auth_algs=1
wpa=0
ssid=prod open
bridge=br-n_734
config_id=0ac707c8583cb415426777e8cad64e88
bssid=xx:xx:xx:xx:xx:xx


bss=w0-8ed
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=private
bridge=br-n_1
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=883933ec3e12f654b0c0c0ee200ecf47
bssid=xx:xx:xx:xx:xx:xx


bss=w0-98a
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=Wehlan
bridge=br-n_734
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=41e596dcb0ac98d3e65e52aa21019f51
bssid=xx:xx:xx:xx:xx:xx


bss=w0-9
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=schedule
bridge=br-n_1
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=7797cdc22e5d00620c86cda232f130ab
bssid=xx:xx:xx:xx:xx:xx

hostapd-ph1.conf:

driver=nl80211
logger_syslog=127
logger_syslog_level=2
logger_stdout=127
logger_stdout_level=2
country_code=DE
ieee80211d=1
ieee80211h=1
hw_mode=a
beacon_int=100
dtim_period=2
channel=36

noscan=1

ieee80211n=1
ht_coex=0
ht_capab=[HT40+][LDPC][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40]

radio_config_id=21396da8e00a736603c54dff9138828b
interface=nw1-1
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=mpsk test
bridge=br-n_1
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=111530b7ee9c5b9024ba3bd80980e101
bssid=xx:xx:xx:xx:xx:xx


bss=w1-47f
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
auth_algs=1
wpa=0
ssid=prod open
bridge=br-n_734
config_id=0ac707c8583cb415426777e8cad64e88
bssid=xx:xx:xx:xx:xx:xx


bss=w1-8ed
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=private
bridge=br-n_1
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=883933ec3e12f654b0c0c0ee200ecf47
bssid=xx:xx:xx:xx:xx:xx


bss=w1-98a
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=Wehlan
bridge=br-n_734
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=41e596dcb0ac98d3e65e52aa21019f51
bssid=xx:xx:xx:xx:xx:xx


bss=w1-9
ctrl_interface=/var/run/hostapd
ap_isolate=1
bss_load_update_period=60
chan_util_avg_period=600
disassoc_low_ack=1
preamble=1
wmm_enabled=1
ignore_broadcast_ssid=0
uapsd_advertisement_enabled=1
utf8_ssid=1
multi_ap=0
wpa_passphrase=xxxxxxxxxxx
auth_algs=1
wpa=2
wpa_pairwise=CCMP
ssid=schedule
bridge=br-n_1
wpa_disable_eapol_key_retries=0
wpa_key_mgmt=WPA-PSK
okc=0
disable_pmksa_caching=1
config_id=7797cdc22e5d00620c86cda232f130ab
bssid=xx:xx:xx:xx:xx:xx

DDK · February 22, 2021, 7:58am

I'm getting a similar issue ( IPQ806x with WLE1216V2 and WLE1216V5 - QCA9984 based WLAN cards )

strange thing is sometimes it works.. ( see on the 3rd radio where it also has 3 different bssids and that worked OK on this reboot )

other times I get this error, and in both cases there are several BSSes in the config file..
I can see the radios broadcast the Wireless signals but HostAPD seems to be "down" for those interfaces.

Mon Feb 22 09:46:10 2021 daemon.notice netifd: radio0 (11297): command failed: Resource busy (-16)
Mon Feb 22 09:46:10 2021 daemon.notice netifd: radio0 (11297): RTNETLINK answers: Resource busy
Mon Feb 22 09:46:12 2021 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy wlan0-1)
Mon Feb 22 09:46:12 2021 daemon.err hostapd: Multiple BSSes specified in BSS-config
Mon Feb 22 09:46:12 2021 daemon.notice netifd: radio0 (11297): Command failed: Invalid argument
Mon Feb 22 09:46:12 2021 daemon.notice netifd: radio0 (11297): Device setup failed: HOSTAPD_START_FAILED
Mon Feb 22 09:46:12 2021 daemon.notice netifd: radio0 (11470): WARNING: Variable 'data' does not exist or is not an array/object

OPenWRT master ( OpenWrt SNAPSHOT r15731-dba76a85de , Kernel 5.4.96 )
wpad-mesh-openssl 2020-06-08-5a8b3662-30
ath10k-ct
ath10k-board-qca9984 20201118-3
ath10k-firmware-qca9984-ct-htt 2020-11-08-1

on each radio I'm running a
802.11s Mesh ( with SAE )
and open AP
a WPA2-PSK encrypted AP

DDK · February 22, 2021, 10:40am

mmm,

seems This patch might be the reason for the
RTNETLINK answers: Resource busy line..
When I edit my /lib/netifd/netifd-wireless.sh file ( on line 176 ) from
[ -n "$4" ] && json_add_boolean keep 1
to
[ -n "$4" ] && json_add_boolean keep 0

I get reliable restarts of the WLAN card and the networks come up as expected..

( I have a script that detects WAN failure and re configures the system for a different network mode, so the WLAN gets reconfigured and reload_config is called )

yogo1212 · February 24, 2021, 10:53am

@DDK interesting. in a "tested this a few times" kind-of-test i can confirm that the messages go away.
not sure what it breaks, though

ptpt52 · April 6, 2021, 4:38pm

I can reproduce this issue

create 2 or more ssid on each phy
run /etc/init.d/network restart
run /etc/init.d/network restart again
run /etc/init.d/network restart again
run /etc/init.d/network restart again
the issue happens

pgaskin · May 12, 2021, 5:27pm

I also encountered this on a hAP AC² (OpenWrt SNAPSHOT r16640-b607e7df34) with two SSIDs on each radio.

config wifi-device 'radio0'
	option type 'mac80211'
	option hwmode '11g'
	option path 'platform/soc/a000000.wifi'
	option htmode 'HT20'
	option cell_density '0'
	option country 'CA'
	option noscan '1'
	option channel '1'
	option txpower '28'
	option disabled '0'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'AAAA'
	option encryption 'sae-mixed'
	option key '***'
	option ieee80211w '1'

config wifi-device 'radio1'
	option type 'mac80211'
	option hwmode '11a'
	option path 'platform/soc/a800000.wifi'
	option htmode 'VHT80'
	option cell_density '0'
	option country 'CA'
	option noscan '1'
	option channel '157'
	option disabled '0'

config wifi-iface 'default_radio1'
	option device 'radio1'
	option network 'lan'
	option mode 'ap'
	option ssid 'AAA'
	option encryption 'sae-mixed'
	option key '***'
	option ieee80211w '1'

config wifi-iface 'wifinet2'
	option device 'radio0'
	option mode 'ap'
	option ssid 'BBBB'
	option encryption 'sae-mixed'
	option key '***'
	option ieee80211w '1'
	option network 'lan1'

config wifi-iface 'wifinet3'
	option device 'radio1'
	option mode 'ap'
	option ssid 'BBBB'
	option encryption 'sae-mixed'
	option key '***'
	option ieee80211w '1'
	option network 'lan1'

I've applied the change suggested by @DDK, and I'll see what happens.

pgaskin · May 12, 2021, 5:37pm

Based on https://github.com/masap/hostap/blob/de4d62dbcd58daa791b5b281d279b269d5ceae82/src/ap/hostapd.c#L2554, I'd suspect this has something to do with updating the config for the kept process, since unlike a fresh start, hostapd can only add(?) one BSS at a time to an existing instance.

I'm going to look into what controls the fourth argument used to determine whether keep is set when I have time later this week.

Catfriend1 · June 3, 2021, 7:54am

I've experienced this problem too (hostapd: Multiple BSSes specified in BSS-config) on my TP-Link Archer C7v2 after running

/etc/init.d/network restart

@pgaskin Thanks for looking into it.

Running multiple SSIDs on the same radio here (radio0) and using OpenWrt 21.02.0-rc2

greybeard · March 15, 2024, 11:26pm

I'm currently seeing what appears to be similar on a current (feb/mar 24) snapshot build
https://forum.openwrt.org/t/multiple-bsses-specified-in-bss-config/191177

Did this issue just go away or was there an update or change made?

[edit] Just tried the mod by @DDK and it appears to have resolved the issue after restart with single bss and then adding and removing extra bss but still failed after reboot with multiple bss enabled.

Catfriend1 · March 16, 2024, 7:19am

I am no longer using the mentioned device, sorry.