[PLUG] Wireless Interface APIs needed

[Abhijit Bhopatkar]

If your wireless device is always coming up with same name e.g. "usb0" then
just add an entry in /etc/network/interfaces. This will prevent
network-manger from claiming this device and you can configure it as you
need using cli.

If the name is not same all the time you will have to play with udev to get
that done first. Google for how to make sure ethernet devices are given
same name. mostly editing /etc/udev/rules.d/70-persistent-net.rules

Also you may want to still use network-manager, you can control it using
"nmcli" through scripts, you don't need the UI or applet running. It might
be better since network manager takes care of lot of things for you esp in
wireless networks.

On 28 November 2014 at 05:58, Vasudeo Bidve <vkbidve at gmail.com> wrote:

> Hi,
>
> I am working on a networking project where only Wi-Fi interfaces are
> used on all hosts for communication. It has to be a private network,
> operating on IPv6 without using DHCP(v6). So obviously, the trick is
> to assign Link-Local IPv6 addresses to all hosts using their
> respective MAC ids and proceed.
>
> I did a proof-of-concept of such networking using Ethernet and PCs
> with ubuntu (14.04 LTS). But this is not working with wireless
> interfaces.
>
> I tried to do this with command line utilities like 'iw' and
> 'iwconfig' on my PCs, but as soon as I plug in the USB-wifi adapter,
> the network-manager in ubuntu sets it in 'managed' mode, which I don't
> want. Further, if I try to assign another mode, I get an error message
> as 'device is busy'. Then by taking the link down, it doesn't add any
> modes. Using the network setting panel in ubuntu, I can configure it
> in 'ad-hoc' mode, but I want to do it programmatically (through a C
> code, shell script, anything) without using that network-manager
> utility finally in my project.
>
> In my project, finally all PCs will be replaced by embedded linux
> SBCs. USB wi-fi adapters will possibly be replaced by wi-fi modules.
> But programmatically, they should be able to communicate with each
> other at Link-Local IPv6 addresses in Ad-Hoc mode.
>
> At this moment, what I need is a set of wireless interface APIs, (of
> course with some helpful documentation) to configure the wifi
> interface in Ad-Hoc mode (possibly in AP/Station mode as and when
> needed), get a Link-Local IPv6 address assigned to itself and start
> networking. Any URL to such information will also do.
>
> If there is any step-by-step guide (or example codes) then it will be
> even more helpful.
>
> Thanks and Regards
>
> Vasudeo K. Bidve
>
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