如何在linux下检查WEP认证是否失败

Question

如果在开放模式下使用WEP安全，那么运行Linux内核的客户端如何检查身份验证因密钥错误而失败，但关联成功，因为它是WEP开放模式。

Answer 1

您将在wpa_supplican的日志中看到这一点。它会看起来像这样(对不起，只是我在互联网上找到的一个随机例子)：

[  778.327092] wlan0: associated
[  778.332503] ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready 
[  788.334222] wlan0: disassociating from 00:1c:f0:b1:80:6a by local choice (reason=3) 
[  788.341433] cfg80211: Calling CRDA for country: US 
[  788.342348] wlan0: deauthenticating from 00:1c:f0:b1:80:6a by local choice (reason=3) 
[  789.122029] wlan0: no IPv6 routers present 
[  789.263341] wlan0: authenticate with 00:1c:f0:b1:80:6a (try 1) 
[  789.463049] wlan0: authenticate with 00:1c:f0:b1:80:6a (try 2) 
[  789.663048] wlan0: authenticate with 00:1c:f0:b1:80:6a (try 3) 
[  789.863057] wlan0: authentication with 00:1c:f0:b1:80:6a timed out 

从上面的日志中可以看到，客户端已成功关联(778.327092)，但在身份验证阶段失败(789.863057)。

您还可以使用*wpa_cli*及其'status‘命令：

> status 
bssid=00:1c:f0:b1:80:6a 
ssid=KLUK2 
id=1 
mode=station 
pairwise_cipher=NONE 
group_cipher=NONE 
key_mgmt=IEEE 802.1X (no WPA) 
wpa_state=ASSOCIATED 
Supplicant PAE state=CONNECTING 
suppPortStatus=Unauthorized 
EAP state=IDLE 
<2>Authentication with 00:1c:f0:b1:80:6a timed out. 
> <2>CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 
> <2>CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3 
> <2>CTRL-EVENT-SCAN-RESULTS 
> <2>Trying to authenticate with 00:1c:f0:b1:80:6a (SSID='KLUK2' freq=2437 MHz) 
<2>CTRL-EVENT-SCAN-RESULTS 
<2>CTRL-EVENT-BSS-REMOVED 0 00:1d:19:cd:43:a1 
> <2>CTRL-EVENT-BSS-REMOVED 1 00:24:fe:82:ea:d9 
> <2>CTRL-EVENT-BSS-REMOVED 2 00:04:0e:8e:a7:fe 
> <2>CTRL-EVENT-SCAN-RESULTS