From 9c8031c47a221310eb59e0b4906af1846ffcbc38 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ebbe=20Ba=C3=9F?= <ebbe.bass>
Date: Mon, 12 Feb 2024 18:07:43 +0100
Subject: [PATCH] added artnet converter script
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Signed-off-by: Ebbe Baß <ebbe.bass>
---
 README.md                  | 25 +++++++++++++++++++++++--
 server/artnet_converter.py | 17 +++++++++++++++++
 2 files changed, 40 insertions(+), 2 deletions(-)
 create mode 100644 server/artnet_converter.py

diff --git a/README.md b/README.md
index 2b6e6f5..74e9c96 100644
--- a/README.md
+++ b/README.md
@@ -213,7 +213,7 @@ sudo mysql -u root -p
 
 # At the password prompt, just hit enter. We are going to change the root password in a second
 
-alter user root identified by 'a password you write down or remember';
+alter user root@localhost identified by 'a password you write down or remember';
 
 CREATE DATABASE IF NOT EXISTS pixeltube_db;
 USE pixeltube_db;
@@ -236,7 +236,28 @@ exit;
 sudo systemctl restart apache2
 ```
 
-### Setup Open Lighting Archetecture as the ArtNET sACN middle man:
+### Setup Open Lighting Archetecture as the ArtNET/sACN middle man:
+
+Edit:
+
+`sudo nano /etc/ola/ola-artnet.conf`
+
+```
+always_broadcast = false
+enabled = true
+ip = eth0
+long_name = PiXelTube Master
+net = 0
+output_ports = 4
+short_name = PiXelTube Master
+subnet = 0
+use_limited_broadcast = false
+use_loopback = false
+```
+
+Save and exit.
+
+
 
 You can access the Pi's OLA webinterface via the following address:
 
diff --git a/server/artnet_converter.py b/server/artnet_converter.py
new file mode 100644
index 0000000..9822d6e
--- /dev/null
+++ b/server/artnet_converter.py
@@ -0,0 +1,17 @@
+from scapy.all import *
+from scapy.arch import get_if_addr
+
+def forward_artnet(pkt):
+    # Check if the packet is an ArtNet packet
+    if pkt.haslayer(IP) and pkt.haslayer(UDP) and pkt[UDP].dport == 6454:
+        # Check the source IP address and interface
+        if pkt[IP].src.startswith("10.0.") and pkt.route()[0] == "eth0":
+            # Modify the source IP address to the new network
+            pkt[IP].src = get_if_addr("wlan0")
+            # Forward the packet to the new network
+            send(pkt, iface="wlan0")
+            print("Forwarded ArtNet packet from eth0 to wlan0")
+
+# Sniff ArtNet packets on eth0
+while True:
+    sniff(iface="eth0", prn=forward_artnet, store=0)
\ No newline at end of file