Re: Query regarding a NetworkManager error-code.

[Ajay Garg <ajaygargnsit gmail com>]

Hi Jirka.

I have been stuck in a peculiar situation.

As I said before, after adding the '802-1x' settings. I am able to connect to the WPA/WPA2-Enterprise network via "ActivateConnection" dbus-api.
However, if I pre-save the network-settings-profile (via python configparser), and then load, I get the following error (I have not been able to figure out the exact API call here, still in process; however, I think that there may be some very basic error) ::

1322623903.644373 ERROR dbus.service: Unable to append ({'802-11-wireless': {'security': '802-11-wireless-security', 'ssid': dbus.ByteArray('MTNL')}, 'connection': {'timestamp': 1322623871, 'autoconnect': True, 'type': '802-11-wireless', 'id': 'Auto MTNL', 'uuid': 'c467a80dd4c64d7abc1ab94fa543f8f2438191b4'}, '802-1x': "{'ca_cert': 'file://usr/local/etc/raddb/certs/ca.pem', 'phase2_auth': 'pap', 'anonymous_identity': 'anonymous', 'eap': ['ttls'], 'password': 'hello', 'identity': 'John Doe'}", '802-11-wireless-security': {'key-mgmt': 'wpa-eap', 'pairwise': "['tkip']", 'group': "['tkip']", 'proto': 'rsn'}},) to message with signature a{sa{sv}}: <type 'exceptions.TypeError'>: string indices must be integers, not str



Also, the NetworkManager logs (in /var/log/messages) are ::

Nov 30 08:58:52 ajay NetworkManager[1478]: <info> couldn't retrieve connection settings: Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/dbus/service.py", line 749, in _message_cb#012    _method_reply_return(connection, message, method_name, signature, *retval)#012  File "/usr/lib/python2.7/site-packages/dbus/service.py", line 256, in _method_reply_return#012    reply.append(signature=signature, *retval)#012TypeError: string indices must be integers, not str#012.


Note that, if I remove the '802-1x' setting-parameters from the pre-saved profile, I DO NOT get the Error: string indices must be integers, not str error.

Anything basic that I may be doing wrong?


Regards,
Ajay

On Mon, Nov 28, 2011 at 8:06 PM, Jirka Klimes <jklimes redhat com> wrote:

On Friday 25 of November 2011 21:25:18 Ajay Garg wrote:
> Thanks Jirka,
>
> I understood, that there needed a set of key-value pairs, to be added under
> the heading-setting '802-1x'.
> It is working now - I am able to connect to the WPA2-Enterprise network.
>
> Thanks a ton !!
>

You're welcome. It's great that you got it working.

You can find description of NM settings at [3]. A connection consists of
settings, which in turn have some properties, see NetworkManagerConfiguration
at [1]. The D-Bus API used to communicate with NM can be found at [2].

[1]  http://live.gnome.org/NetworkManager  - wiki page about NetworkManager
[2] http://projects.gnome.org/NetworkManager/developers/api/09/spec.html  - D-
Bus API specifications
[3] http://projects.gnome.org/NetworkManager/developers/api/09/ref-
settings.html  - specification of connection settings

Jirka

> Ajay Garg wrote:
> > You are a champ, Jirka.
> > I am, in fact, trying to activate a connection - a WPA2-Enterprise type.
> >
> > The key-management is, in fact,
> > wireless_security['key_mgmt'] = 'wpa-eap'
> >
> > I have also set
> >
> > wireless_security['proto'] = "rsn"
> > wireless_security['pairwise'] = ['ccmp', 'tkip']
> > wireless_security['group'] = ['ccmp', 'tkip']
> >
> >
> > and also
> >
> > wireless_security['ssid']='Auto MTNL
> > 'wireless_security['eap']='TTLS'
> > wireless_security.['scan_ssid']=1
> > wireless_security['identity']="John Doe"
> > wireless_security['password']="hello"
> > wireless_security['phase2']="auth=PAP"
> > wireless_security['ca_cert']="/usr/local/etc/raddb/certs/ca.pem"
> > wireless_security['anonymous_identity']="anonymous"
> >
> >
> > but I see, the following (potentially non-fatal, but warnings
> > nevertheless) logs:
> >
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'password'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'ca_cert'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'anonymous_identity'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'scan_ssid'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'ssid'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'identity'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'phase2'
> > Nov 25 00:57:17 ajay NetworkManager[1451]: <WARN>  one_property_cb():
> > Ignoring invalid property 'eap'
> >
> >
> > Strangely, the above settings are seen as 'Config added:' when I do the
> > connection via nm-applet, and not through python-dbus-apis. Obviously, I
> > am able to connect through nm-applet, but not through python-dbus-apis.
> >
> > So, I am, in fact, missing the '802-1x' setting.
> > Could you please let-me-know/point-to-the-relevant-docs the possible
> > value(s) that
> > wireless_security['802-1x'] may take? My 3-day long struggle may finally
> > come to an end...
> >
> > Thanks for returning my confidence..
> >
> > Regards,
> > Ajay
> >
> > Jirka Klimes wrote:
> >> Your connection is not valid.
> >> You probaly have a connection which requires '802-1x' setting, but it is
> >> missing.
> >> The setting is required for "ieee8021x" or "wpa-eap" key management.
> >>
> >> List your connection with:
> >> nmcli con list id "Auto MTNL"
> >>
> >> You can create a valid connection using nm-connection-editor.
> >>
> >> Jirka
> >> _______________________________________________
> >> networkmanager-list mailing list
> >> networkmanager-list gnome org
> >> http://mail.gnome.org/mailman/listinfo/networkmanager-list