Hi Thomas.
Thank you for your help. I am new using this library so, your help is much
appreciated.
That's really what I was looking for because, right now, I am simply calling
system("nmcli con mod Wired\ connection\ 1 ...") in my test application to
modify settings and I wanted to replace that part.
I will keep you informed.
Thanks again,
António Pontinha Mendes
________________________________________
From: Thomas Haller <[email protected]>
Sent: 25 February 2020 17:34
To: António Mendes; [email protected]
Subject: Re: Change IP address with libnm
On Tue, 2020-02-25 at 17:02 +0000, António Mendes wrote:
> Hi.
> I tried to use the example add-connection-libnm-glib.c and adapt to
> my case but without success...
> I wanted to change an IP address from a connection already created
> and add some 802.1X configurations.
Hi,
add-connection adds a new profile.
Basically, what `nmcli connection add ...` does.
The example you refer to is about usage of libnm. So, the corresponding
API is nm_remote_connection_update2() ([1]). This maps to the D-Bus
call Update2 ([2]). This is what `nmcli connection modify ...` does.
[1]
https://developer.gnome.org/libnm/1.22/NMRemoteConnection.html#nm-remote-connection-update2
[2]
https://developer.gnome.org/NetworkManager/1.22/gdbus-org.freedesktop.NetworkManager.Settings.Connection.html#gdbus-method-org-freedesktop-NetworkManager-Settings-Connection.Update2
As always, connection profiles in NetworkManager are really just a bunch of
nested
dictionaries, that is the plain settings. There is no further logic involved,
just
create a suitable profile. If you use libnm, you probably create the profile
using the
NMConnection and NMSetting types. These represent the nested dictionaries.
After you modify a profile, you usually need to activate it so that your actual
networking
configuration (`nmcli device`, `ip link`) changes.
best,
Thomas
www.eid.pt
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