Since we're also now reading responses we need to check sender
credentials to make sure we're talking to the kernel, and not
some other process spoofing netlink.
Signed-off-by: Dan Williams <dan@ioncontrol.co>
Right now just with the support to setup link properties like up/down
state or the link mtu.
This features are required when using QMAP based multiplexing with the
qmi_wwan kernel driver.
Lukas Voegl
Dan Williams
Aleksander Morgado