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gluon-core: add preserve wifi channels feature

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This new feature introduces the new uci section 'gluon-core.wireless' with a preserve_channels option:
 * preserve_channels (boolean)

By setting this option to 1 (true) wifi channels will be preserved during upgrades.
This commit is contained in:
Kokel 2016-02-06 00:01:40 +01:00 committed by Tobias Hachmer
parent e0e96b7b28
commit 388d264ff0
3 changed files with 20 additions and 1 deletions
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8
docs/features/wlan-configuration.rst
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@ -24,3 +24,11 @@ existing configuration will also be set for the new configuration.
This allows upgrades to change from IBSS to 11s and vice-versa while retaining the
"wireless meshing is enabled/disabled" property configured by the user regardless
of the used mode.
During upgrades the wifi channel of the 2.4GHz and 5GHz radio will be restored to the channel
configured in the site.conf. If you need to preserve a user defined wifi channel during upgrades
you can configure this via the uci section ``gluon-core.wireless``::
uci set gluon-core.@wireless[0].preserve_channels='1'
Keep in mind that nodes running wifi interfaces on custom channels can't mesh with default nodes anymore!

1
package/gluon-core/files/etc/config/gluon-core Normal file
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@ -0,0 +1 @@
config wireless

12
package/gluon-core/files/lib/gluon/upgrade/200-wireless
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@ -10,11 +10,21 @@ if not sysconfig.gluon_version then
uci:delete_all('wireless', 'wifi-iface')
end
local function get_channel(radio, config)
if uci:get_first('gluon-core', 'wireless', 'preserve_channels') then
return uci:get('wireless', radio, 'channel') or config.channel
else
return config.channel
end
end
local function configure_radio(radio, index, config)
if config then
local channel = get_channel(radio, config)
uci:delete('wireless', radio, 'disabled')
uci:set('wireless', radio, 'channel', config.channel)
uci:set('wireless', radio, 'channel', channel)
uci:set('wireless', radio, 'htmode', 'HT20')
uci:set('wireless', radio, 'country', site.regdom)
end