93 lines
2.9 KiB
Markdown
93 lines
2.9 KiB
Markdown
# openUF — C
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Daemon that makes an OpenWrt router appear as a **UniFi U6 InWall** to the UniFi Network controller.
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## Implemented Features
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| Feature | Description | Implementation |
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| --- | --- | --- |
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| **L2 Discovery** | UDP broadcast + multicast every 10s | `announce.c` → port 10001 |
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| **Adoption** | AES-128-CBC handshake with the controller | `inform.c` → `handle_response()` |
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| **WiFi Config** | Creates WiFi networks from the controller via UCI | `wlan.c` → `wlan_apply_config()` |
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| **Band Steering** | 802.11k/v Neighbor Reports + BSS Transition | `wlan.c` → `apply_vap()` |
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| **Fast Roaming** | 802.11r FT with mobility_domain derived from MAC | `wlan.c` → `apply_vap()` |
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| **WPA3 / PMF** | SAE, SAE-mixed, 802.11w 0/1/2 | `wlan.c` → `sec_to_uci()` |
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| **WiFi Clients** | MAC, signal, bitrate, bytes per VAP | `clients.c` → `iw station dump` |
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| **Wired Clients** | MACs from bridge FDB | `clients.c` → `bridge fdb` |
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| **CPU / RAM** | Real-time usage | `sysinfo.c` → `/proc/stat` + `/proc/meminfo` |
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| **Interfaces** | Speed, duplex, rx/tx counters | `sysinfo.c` → `/proc/net/dev` |
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| **Channel / RF** | Channel utilization, noise, tx_power | `sysinfo.c` → `iw survey dump` |
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| **LLDP Send** | Custom frames via AF_PACKET raw socket | `lldp.c` → `lldp_send_frame()` |
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| **LLDP Read** | Neighbors for UniFi topology | `lldp.c` → `lldpctl -f json` |
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## Quick Installation
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```sh
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# On the OpenWrt device:
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opkg update
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opkg install gcc make libmbedtls-dev libuci-dev libjson-c-dev
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# Compile and install
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make -f Makefile.standalone install
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# Configure
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vi /etc/openuf/openuf.conf # adjust controller_ip and lan_if
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# Start
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/etc/init.d/openuf start
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/etc/init.d/openuf enable # start on boot
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```
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## Configuration
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```ini
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controller_ip = 192.168.1.1 # UniFi controller IP
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lan_if = br-lan # LAN interface (for MAC and IP)
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ufmodel = u6-inwall # emulated model
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inform_interval = 10 # seconds between informs
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enable_announce = 1
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enable_inform = 1
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```
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## U6 InWall Model
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A **U6 IW** is emulated because it has 5 GbE ports, which covers most OpenWrt routers. The model reports:
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* 5 ethernet ports (eth0-eth4)
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* 2.4 GHz WiFi 6 Radio (HE/802.11ax)
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* 5 GHz WiFi 6 Radio (HE/802.11ax)
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## LLDP
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For visual topology in UniFi:
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```sh
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opkg install lldpd
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/etc/init.d/lldpd start
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/etc/init.d/lldpd enable
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```
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openuf sends its own LLDP frames even without lldpd (raw socket).
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With lldpd installed, it also reports upstream neighbors (switches).
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## Adoption
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The process is automatic:
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1. The AP appears as "Pending" in UniFi.
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2. Click on "Adopt" → the controller sends a new key.
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3. The AP applies the key and becomes "Connected".
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4. The controller pushes the WiFi configuration (SSIDs, channels, etc.).
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To reset: `rm /etc/openuf/state.json && reboot`
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## Dependencies
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```sh
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opkg install libmbedtls libuci libjson-c
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opkg install lldpd # optional, for topology
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``` |