嵌入式设备wpa_supplicant重新连接

debugcn 发表于 Dev

大胡子的庸医

我们有一个嵌入式Arm设备，运行基于Debian 9的OS，运行内核4.14.67-1.0.6 +。

编辑：根据@AB的要求，以下也是将来的查看器的驱动程序/芯片组信息-在询问问题时我不知道如何找到它。

filename:       /lib/modules/4.14.67-1.0.6+/extra/mlan.ko
license:        GPL
version:        C605
author:         Marvell International Ltd.
description:    M-WLAN MLAN Driver
srcversion:     103492D596FC10822F1F391
depends:
name:           mlan
vermagic:       4.14.67-1.0.6+ SMP preempt mod_unload modversions ARMv7 p2v8

我们可以在启动时连接到WiFi，但是当信号丢失时，设备不会自动重新连接。我一直在遍历文档/etc/network/interfaces，wpa_supplicant一遍又一遍地尝试不同的选项，尽管取得了一些进展，但仍然无法正确连接。

我的配置如下所示。我已经尝试过使用手动iface设置来与wpa-confvswpa-roam一起玩。我已经使用不同的尝试autoscan和ap_scan对的wpa_supplicant设置。我们过去曾尝试使用NetworkManager，但事实证明该设备上的GSM接口存在一些问题。

/ etc / network / interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

auto lo
iface lo inet loopback

allow-hotplug mlan0
iface mlan0 inet dhcp
        wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

/etc/wpa_supplicant/wpa_supplicant.conf

ap_scan=2

# Networks SSIDs
network={
        ssid="1+ Benji"
        psk="REDACTED"
        key_mgmt=WPA-PSK
}

我正在通过重新启动设备并确保其连接正常，然后关闭手机并在其WiFi热点上进行测试。重新启动后，wpa_supplicant现在进行扫描以尝试重新连接（以前不是这样），但是连接一直失败，只是说该站即将离开。

/ var / log / syslog

# Network manually turned off
Feb 11 15:56:08 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-DISCONNECTED bssid=94:65:2d:83:c2:0d reason=3
Feb 11 15:56:08 arm kernel: [  154.302149] wlan: EVENT: Disassociated (reason 0x3)
Feb 11 15:56:08 arm kernel: [  154.302166] wlan: REASON: (Deauth) Sending STA is leaving (or has left) IBSS or ESS
Feb 11 15:56:08 arm kernel: [  154.302339] wlan: Disconnected from 94:XX:XX:XX:c2:0d: Reason code 3
Feb 11 15:56:08 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Feb 11 15:56:08 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:13 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=1
Feb 11 15:56:13 arm kernel: [  159.732160] wlan: SCAN COMPLETED: scanned AP count=0
Feb 11 15:56:14 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:19 arm kernel: [  165.291259] usb 2-1: USB disconnect, device number 5
Feb 11 15:56:19 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=1
Feb 11 15:56:19 arm kernel: [  165.572172] wlan: SCAN COMPLETED: scanned AP count=0
Feb 11 15:56:20 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:26 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=1
Feb 11 15:56:26 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="1+ Benji" auth_failures=1 duration=10 reason=CONN_FAILED
Feb 11 15:56:26 arm kernel: [  171.912043] wlan: SCAN COMPLETED: scanned AP count=0
Feb 11 15:56:31 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:36 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-ASSOC-REJECT bssid=00:00:00:00:00:00 status_code=1
Feb 11 15:56:36 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="1+ Benji" auth_failures=2 duration=20 reason=CONN_FAILED
Feb 11 15:56:36 arm kernel: [  182.252181] wlan: SCAN COMPLETED: scanned AP count=0

# Network AP manually turned back on 
Feb 11 15:56:46 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:51 arm kernel: [  197.512170] wlan: SCAN COMPLETED: scanned AP count=1
Feb 11 15:56:51 arm kernel: [  197.682452] wlan: Connected to bssid 94:XX:XX:XX:c2:0d successfully
Feb 11 15:56:51 arm kernel: [  197.685349] wlan: Received disassociation request on mlan0, reason: 3
Feb 11 15:56:51 arm kernel: [  197.685361] wlan: REASON: (Deauth) Sending STA is leaving (or has left) IBSS or ESS
Feb 11 15:56:53 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-DISCONNECTED bssid=94:65:2d:83:c2:0d reason=3 locally_generated=1
Feb 11 15:56:53 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Feb 11 15:56:53 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:54 arm kernel: [  199.872319] wlan: Connected to bssid 94:XX:XX:XX:c2:0d successfully
Feb 11 15:56:54 arm kernel: [  199.874233] wlan: Received disassociation request on mlan0, reason: 3
Feb 11 15:56:54 arm kernel: [  199.874247] wlan: REASON: (Deauth) Sending STA is leaving (or has left) IBSS or ESS
Feb 11 15:56:55 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-DISCONNECTED bssid=94:65:2d:83:c2:0d reason=3 locally_generated=1
Feb 11 15:56:55 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Feb 11 15:56:55 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:55 arm kernel: [  201.702474] wlan: Connected to bssid 94:XX:XX:XX:c2:0d successfully
Feb 11 15:56:55 arm kernel: [  201.704140] wlan: Received disassociation request on mlan0, reason: 3
Feb 11 15:56:55 arm kernel: [  201.704152] wlan: REASON: (Deauth) Sending STA is leaving (or has left) IBSS or ESS
Feb 11 15:56:57 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-DISCONNECTED bssid=94:65:2d:83:c2:0d reason=3 locally_generated=1
Feb 11 15:56:57 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="1+ Benji" auth_failures=3 duration=30 reason=CONN_FAILED
Feb 11 15:56:57 arm wpa_supplicant[459]: mlan0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD
Feb 11 15:56:57 arm wpa_supplicant[459]: mlan0: Trying to associate with SSID '1+ Benji'
Feb 11 15:56:58 arm kernel: [  203.872352] wlan: Connected to bssid 94:XX:XX:XX:c2:0d successfully
Feb 11 15:56:58 arm kernel: [  203.874052] wlan: Received disassociation request on mlan0, reason: 3
Feb 11 15:56:58 arm kernel: [  203.874064] wlan: REASON: (Deauth) Sending STA is leaving (or has left) IBSS or ESS

如您所见，当我重新打开设备上的网络AP之后，它会继续尝试重新连接，但由于原因3失败。 STA即将离开（或已离开）IBSS或ESS”没有帮助。

如果需要任何其他信息或输出日志，请告诉我，我们将很乐意提供它们。

大胡子的庸医

几天前，我还询问设备制造商是否有任何建议，尽管他们花了一些时间做出答复，但他们的建议似乎运作良好。

基本/etc/network/interfaces我已经是很好，但有1线的时候，我想所有的各种选项，我失踪/etc/wpa_supplicant/wpa_supplicant.conf这是disable_scan_offload=1...有了ap_scan=1。

最终配置：

# Enable WiFi scanning on network disconnect.
ap_scan=1
autoscan=periodic:10
disable_scan_offload=1
# This above line is crucial for making wpa_supplicant do the scan instead of relying
# on the driver, which in this case didn't appear to be scanning to reconnect.

# Users saved network list
network={
        ssid="1+ Benji"
        psk="REDACTED"
        key_mgmt=WPA-PSK
}
#network={...}
#network={...}

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编辑于2021-07-1

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