Re: AD-Hoc network specify channel

[Dan Williams <dcbw redhat com>]

On Thu, 2010-05-06 at 23:17 +0200, Simon Schampijer wrote:
> On 04/23/2010 02:15 AM, Dan Williams wrote:
> > On Sat, 2010-04-17 at 16:02 +0200, Simon Schampijer wrote:
> >> On 04/14/2010 10:42 PM, Dan Williams wrote:
> >>> On Tue, 2010-04-13 at 21:36 +0200, Simon Schampijer wrote:
> >>>> Hi,
> >>>>
> >>>> I am trying to create an Ad-Hoc Network with a specific channel. From
> >>>> the spec [1] I know that I have to set the band as well. However the
> >>>> created network always has channel 1. The nm-applet does not have an
> >>>> option to set the channel, and is using channel one, too.
> >>>>
> >>>> Using iwconfig to create an Ad-Hoc network I can set a channel fine. Is
> >>>> it fully implemented or do I miss something else?
> >>>
> >>> It should be, though it's likely not possible if you're using
> >>> nm-connection-editor since the channel/band aren't accessible there.
> >>> But looking at it now, they *should* be accessible for ad-hoc
> >>> connections.  So we'll need to whip up some code for page-wifi.c to
> >>> hide/show them when ad-hoc is selected.
> >>
> >> Yes, agreed. Having it accessible as a setting from within nm-applet
> >> would be nice.
> >>
> >>> (this is because wpa_supplicant only has the ability to set the channel
> >>> for ad-hoc networks, not a limitation in NM.  wpa_supplicant does not
> >>> have the ability to set a band limitation for infrastructure networks,
> >>> which means we can't let users limit particular connection to only
> >>> 802.11a for example)
> >>>
> >>> See nm_supplicant_config_add_setting_wireless() in NM for where the
> >>> frequency gets sent to the supplicant, and build_supplicant_config() for
> >>> where the channel/band get translated into a frequency.
> >>>
> >>> Also check nm_ap_new_fake_from_connection() to ensure that the frequency
> >>> is getting correctly set on the fake AP.
> >>>
> >>> This all should work as long as the connection dict has the band/freq
> >>> specified.
> >>>
> >>> Dan
> >>
> >> Actually when looking at the logs something caught my eye. The frequency
> >> was listed as being 5210 when I specified channel 11 and 'bg' as the
> >> band. Looking at the code I found a little typo. Patches for master and
> >> the NETWORKMANAGER_0_7 branch are attached.
> >>
> >> Dan, as always, thanks for taking the time to reply that detailed,
> >
> > Pushed to stable and master, thanks!
> >
> > Dan
> 
> Hi Dan,
> 
> is there a new rpm planned for Fedora 11 of the NETWORKMANAGER_0_7 
> branch? Anything I can help here?

Built here:

https://admin.fedoraproject.org/updates/NetworkManager-0.7.2.997-1.fc11

The best thing you can do is get yourself and 2 other people to test it,
and if it works give it a +1 karma in the update tool.  After it reaches
+3 karma, it'll get auto-pushed to stable F11-updates.

Let me know!

Dan