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![DAWN PICTURE](https://image.ibb.co/nbmNfJ/dawn_bla.png)
# DAWN
Decentralized WiFi Controller
## Related
|Repro |Content |
|------------------|--------------------------|
|[patches-pending](https://github.com/berlin-open-wireless-lab/patches-pending)|Pending OpenWrt Patches DAWN is depending on|
|[bowl-feed](https://github.com/berlin-open-wireless-lab/bowl-feed)|Feed for DAWN|
## Installation
See [installation](INSTALL.md).
## LuCI App
There is an luci app called [luci-app-dawn](https://github.com/berlin-open-wireless-lab/bowl-feed).
## Setting up Routers
You can find a good guide to configure your router is [here](https://gist.github.com/braian87b/bba9da3a7ac23c35b7f1eecafecdd47d).
I setup the OpenWRT Router as dumb APs.
## Configuration
|Option |Standard | Meaning |
|-------------------|---------|---------|
|ht_support | '10' |If AP and station support high throughput.|
|vht_support | '100' |If AP and station support very high throughput.|
|no_ht_support | '0' |If AP and station not supporting high throughput.|
|no_vht_support | '0' |If AP and station not supporting very high throughput.
|rssi | '10' |If RSSI is greater equal rssi_val.|
|low_rssi | '-500' |If RSSI is less than low_rssi_val.|
|freq | '100' |If connection is 5Ghz.|
|chan_util | '0' |If channel utilization is lower chan_util_val.|
|max_chan_util | '-500' |If channel utilization is greater max_chan_util_val.|
|rssi_val | '-60' |Threshold for an good RSSI.|
|low_rssi_val | '-80' |Threshold for an bad RSSI.|
|chan_util_val | '140' |Threshold for an good channel utilization.|
|max_chan_util_val | '170' |Threshold for a bad channel utilization.|
|min_probe_count | '2' |Minimum number of probe requests aftrer calculating if AP is best and sending a probe response.|
|bandwith_threshold | '6' |Threshold for the receiving bit rate indicating if a client is in an active transmission.|
|use_station_count | '1' |Use station count as metric.|
|max_station_diff | '1' |Maximal station difference that is allowed.|
|eval_probe_req | '1' |Evaluate the incoming probe requests.|
|eval_auth_req | '1' |Evaluate the incomning authentication reqeuests.|
|eval_assoc_req | '1' |Evaluate the incoming association requests.|
|deny_auth_reason | '1' |Status code for denying authentications.|
|deny_assoc_reason | '17' |Status code for denying associations.|
|use_driver_recog | '1' |Allow drivers to connect after a certain time.|
## ubus interface
To get an overview of all connected Clients sorted by the SSID.
root@OpenWrt:~# ubus call dawn get_network
{
"Free-Cookies": {
"00:27:19:XX:XX:XX": {
"78:02:F8:XX:XX:XX": {
"freq": 2452,
"ht": 1,
"vht": 0,
"collision_count": 4
}
},
"A4:2B:B0:XX:XX:XX": {
"48:27:EA:XX:XX:XX: {
"freq": 2412,
"ht": 1,
"vht": 0,
"collision_count": 4
},
}
},
"Free-Cookies_5G": {
}
}
To get the hearing map you can use:
root@OpenWrt:~# ubus call dawn get_hearing_map
{
"Free-Cookies": {
"0E:5B:DB:XX:XX:XX": {
"00:27:19:XX:XX:XX": {
"signal": -64,
"freq": 2452,
"ht_support": true,
"vht_support": false,
"channel_utilization": 12,
"num_sta": 1,
"ht": 1,
"vht": 0,
"score": 10
},
"A4:2B:B0:XX:XX:XX": {
"signal": -70,
"freq": 2412,
"ht_support": true,
"vht_support": false,
"channel_utilization": 71,
"num_sta": 3,
"ht": 1,
"vht": 0,
"score": 10
}
}
}
}
## OpenWrt in a Nutshell
![OpenWrtInANuthshell](https://raw.githubusercontent.com/PolynomialDivision/upload_stuff/master/dawn_pictures/openwrt_in_a_nutshell_dawn.png)