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I've been trying to use various Python libraries for working with Connman and the dbus, particularly this sample code:

https://github.com/liamw9534/pyconnman/blob/master/demo/demo.py

The problem I have is that when connecting to a WPA2 access point for the very first time, I will always receive a timeout message. For example:

CONN> list-services
CONN> agent-start /test/agent ssid=myNetwork passphrase=myPassphrase
CONN> service-connect /net/connman/service/wifi_xxxxx__managed_psk

Eventually this is the message I receive back from the interface:

Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken

I can confirm at this point that Connman has no connected to a wifi network or obtained an IP address. The only way I can manage to get this to work is by using the Connman application itself from a Linux terminal:

connmanctl
connmanctl> agent on
connmanctl> connect wifi_xxxxx__managed_psk
Agent RequestInput wifi_xxxxx__managed_psk
    Passphrase = [ Type=psk, Requirement=mandatory ]
Passphrase? myPassword
connmanctl> Connected wifi_xxxxx__managed_psk

This creates a settings folder under /var/lib/connman for the wifi network. I can now use the demo.py script mentioned above to either disconnect or reconnect.

Connman is still a bit of a mystery to me in many ways, and I'm not sure why I have to use the interactive shell to connect to a network for the first time. Any ideas?

Andrew Langley
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1 Answers1

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In case you're still looking for the answer : Connman needs an agent to answer the security questions (in the WPA2: it's the password). You can either run an agent and reply to Connman questions or you can create a file in /var/lib/connman with the right keys. See here. Once a file is created or deleted Connman will auto magically act accordingly (try to connect or disconnect.

A basic file would look like:

[service_mywificonfig]
Type = wifi
Security = wpa2
Name = myssid
Passphrase = yourpass
Dror Cohen
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