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I have configured a control interface for hostapd on embedded Linux like this in the configuration file:

ctrl_interface=/var/run/hostapd

I can see that a file is created in the file system:

ls -la /var/run/hostapd/wifi_ap0
srwxrwx---    1 root     root             0 Jul 17 20:40 /var/run/hostapd/wifi_ap0

However when I try to open a connection to this interface via wpa_ctrl_open("/var/run/hostapd/wifi_ap0") it returns NULL and strerror(errno) returns No such file or directory.

Clearly the file exists, so I don't understand what is wrong here. Any hints?

Jan Schatz
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1 Answers1

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Try

hostapd_cli -r -a <command>

-a start as daemon and -r try to reconnect to hostapd socket.

I had same problem and it was sufficient to add -r Because I start hostapd_cli as service to open a Fotinet vpn every time the client is connected.

Mechano
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