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NixOS 下带有 wpa_supplicant 的 wlp2s0

tag-icon • tag-icon wireless-networking wpa-supplicant nixos
NixOS 下带有 wpa_supplicant 的 wlp2s0

我有一个 NixOS 系统（nixoshttps://nixos.org/channels/nixos-18.03)。使用wpa_supplicant，我无法让我的无线网卡连接到我的家庭网络（WPA2）。

它使用新的Systemd 可预测的网络接口名称方案（wlp2s0替换wlan0）。

A）下列的NixOS 手册 / 11.6 无线网络，我设置了 WPA sid 和密码。

$ wpa_passphrase ESSID PSK > /etc/wpa_supplicant.conf
$ systemctl restart wpa_supplicant.service

模块wpa_supplicant可以是活动的

$ systemctl status wpa_supplicant
● wpa_supplicant.service - WPA Supplicant
   Loaded: loaded (/nix/store/fw6xw11p5nprhbchdgapj54js84zk97l-unit-wpa_supplicant.service/wpa_supplicant.service; enabled; vendor preset: enabled)
   Active: active (running) since Sat 2019-03-09 14:40:43 EST; 1min 11s ago
 Main PID: 800 (wpa_supplicant)
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/wpa_supplicant.service
           └─800 wpa_supplicant -s -u -Dnl80211,wext -c /etc/wpa_supplicant.conf -iwlp2s0

Mar 09 14:40:43 nixos systemd[1]: Started WPA Supplicant.
Mar 09 14:40:48 nixos wpa_supplicant[800]: Successfully initialized wpa_supplicant

或者已加载，但不处于活动状态。

$ systemctl status wpa_supplicant
● wpa_supplicant.service - WPA Supplicant
   Loaded: loaded (/nix/store/fw6xw11p5nprhbchdgapj54js84zk97l-unit-wpa_supplicant.service/wpa_supplicant.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Sat 2019-03-09 12:04:11 EST; 2h 30min ago
  Process: 2017 ExecStart=/nix/store/77cvdnjyb1djvirr61591ipgnm6nx9mx-unit-script/bin/wpa_supplicant-start (code=exited, status=0/SUCCESS)
 Main PID: 2017 (code=exited, status=0/SUCCESS)

Mar 09 11:59:03 nixos systemd[1]: Started WPA Supplicant.
Mar 09 11:59:03 nixos wpa_supplicant[2017]: Successfully initialized wpa_supplicant
Mar 09 12:04:11 nixos wpa_supplicant[2017]: nl80211: Failed to open /proc/sys/net/ipv4/conf/p2p-dev-wlp2s0/drop_unicast_in_l2_multicast: No such file or directo>
Mar 09 12:04:11 nixos wpa_supplicant[2017]: nl80211: Failed to set IPv4 unicast in multicast filter
Mar 09 12:04:11 nixos wpa_supplicant[2017]: nl80211: Failed to open /proc/sys/net/ipv4/conf/p2p-dev-wlp2s0/drop_unicast_in_l2_multicast: No such file or directo>
Mar 09 12:04:11 nixos wpa_supplicant[2017]: nl80211: Failed to set IPv4 unicast in multicast filter
Mar 09 12:04:11 nixos wpa_supplicant[2017]: nl80211: deinit ifname=p2p-dev-wlp2s0 disabled_11b_rates=0
Mar 09 12:04:11 nixos wpa_supplicant[2017]: p2p-dev-wlp2s0: CTRL-EVENT-TERMINATING
Mar 09 12:04:11 nixos wpa_supplicant[2017]: nl80211: deinit ifname=wlp2s0 disabled_11b_rates=0
Mar 09 12:04:11 nixos wpa_supplicant[2017]: wlp2s0: CTRL-EVENT-TERMINATING

无论如何，我仍然无法 ping 网址。

$ iwconfig
lo        no wireless extensions.

wlp2s0    IEEE 802.11  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:on

enp0s20f0u2  no wireless extensions.

enp0s31f6  no wireless extensions.

B）我也尝试过手动设置 SSID 和密码。但没成功。

$ iwlist wlp2s0 scan
$ iwconfig wlp2s0 essid <mysid> key s:<mypassphrase>

C）我搜索了互联网，发现有人遇到了类似的问题。但这些解决方案对我不起作用（关闭、刷新、启动 wlp2s0、重新绑定 wpa_supplicant）。

$ ip link set dev wlp2s0 down
$ ip addr flush dev wlp2s0
$ ip link set dev wlp2s0 up
$ wpa_supplicant -B -i wlp2s0 -c /etc/wpa_supplicant.conf

Successfully initialized wpa_supplicant
nl80211: Could not set interface 'p2p-dev-wlp2s0' UP
nl80211: deinit ifname=p2p-dev-wlp2s0 disabled_11b_rates=0
p2p-dev-wlp2s0: Failed to initialize driver interface
P2P: Failed to enable P2P Device interface

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