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Author: Edward Bartolo
Date:  
To: tilt
CC: dng, aitor_czr
Subject: Re: [DNG] [DN Offlist G] netman GIT project
Hi,

I tested my installation, Devuan 64 bit, for unwanted behaviour when
/etc/network/interfaces contains lines as follows but which point to
inexistent physical devices:

iface wlan1 inet dhcp

The OS didn't complain and I was able to use netman as usual without
the least of issues. Needless to state, I kept the original "iface
wlan0 inet dhcp".

This is with "iface wlan1 inet dhcp" present in /etc/network/interfaces:
# ifup wlan1
Internet Systems Consortium DHCP Client 4.3.1
Copyright 2004-2014 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Cannot find device "wlan1"
Bind socket to interface: No such device

If you think you have received this message due to a bug rather
than a configuration issue please read the section on submitting
bugs on either our web page at www.isc.org or in the README file
before submitting a bug. These pages explain the proper
process and the information we find helpful for debugging..

exiting.
Failed to bring up wlan1.


And this is with "iface wlan1 inet dhcp" removed from /etc/network/interfaces:
root@edbarx-pc:/dev# ifup wlan1
Ignoring unknown interface wlan1=wlan1.

Both instances fail to connect but with different error messages.


Edward.


On 14/09/2015, Edward Bartolo <edbarx@???> wrote:
> Hi all,
>
> The additional ability to recognize wlan1, wlan2, wlan3, etc, in
> something I will do as soon as I can.
>
> Regarding the use of "iface wlan0 inet dhcp" in
> /etc/network/interfaces, I have no other option unless someone really
> versed in network configuration provides an alternative that works and
> that doesn't disrupt the already working code.
>
> I have already a germinating idea of how to implement support for
> wlanN. This is by naming the essid files as wlanX_essid. This way only
> the essid saving function and the frontend essid listing functions
> would need to be changed. The connecting functions of the backend
> would simply parse the filename to extract the device name, and it
> would be done.
>
> However, at this time of the year, I am very busy doing other work
> besides programming for Devuan. At the moment, I am busy planting my
> vegetables which cannot wait as that depends on the season, and a
> couple of weeks makes a whole difference.
>
> Edward
>
> On 13/09/2015, aitor_czr <aitor_czr@???> wrote:
>> Ok, I like XFCE4 of course.
>>
>> Aitor.
>>
>> El 13/09/15 a las 20:13, Edward Bartolo escribió:
>>
>> Hi aitor, I forgot to write that the final step is to let netman be
>> automatically run as soon as a user boots into XFCE4 or desktop or
>> window manager. Edward On 13/09/2015, Edward Bartolo <edbarx@???>
>> wrote:
>>>> >Hi aitor,
>>>> >
>>>> >I think, the time has come to start thinking about producing a .deb
>>>> >package for netman. However, we will have to use a post installation
>>>> >script to add the line:
>>>> >
>>>> >"iface wlan0 inet dhcp"
>>>> >
>>>> >to /etc/network/interfaces. The script has also to create a new
>>>> >directory under /usr/bin with the name netman ie /usr/bin/netman will
>>>> >hold both the frontend and the backend.
>>>> >
>>>> >The SUID for backend must be changed to that belonging to root. I do
>>>> >this as follows:
>>>> >chown root:root backend
>>>> >chmod u+s backend
>>>> >
>>>> >A new directory under /etc/network with the name wifi must be created
>>>> >i.e. /etc/network/wifi must be an existing directory.
>>>> >
>>>> >Then, the final steps would be to create a launcher for netman, the
>>>> >frontend. To enable automatic attempts at connecting basing on
>>>> >installed essid files under /etc/network/wifi, the parameter
>>>> >--auto-conn must be passed to netman upon invocation. --auto-conn need
>>>> >not be used and netman would not attempt to connect without user
>>>> >intervention. This feature is for those who want to control what
>>>> >happens on their machine.
>>>> >
>>>> >Edward
>>>> >
>>>> >
>>
>>
>