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# streamml
Streamml processes network packets in real-time, feeding them into the Half-Space Trees algorithm (via the River library). When the score exceeds the defined threshold, the application saves an evidentiary PCAP dump containing the relevant packet window.
Note: Currently supports Half-Space Trees, with plans to add more algorithms.
### Prerequisites
Ensure you have [uv](https://github.com/astral-sh/uv) installed.
### Running
Root privileges are needed for packet sniffing.
```bash
sudo uv run -m streamml.app
```
results are stored here:
LOGS_PATH = XDG_DATA_HOME/streamml/profiles_logs
PCAP_PATH = XDG_DATA_HOME/streamml/profiles_pcaps
This is how it works:
+--------------------+
| Profile Activation |
+---------+----------+
|
+---------------+---------------+
| |
+-------v-------+ +-------v---------+
| Start Sniffer | | Start Processor |
+-------+-------+ +-------+---------+
| |
+-------v-------+ +-------v-------------+
| BPF Filter | | Get Packet from |<------+
+-------+-------+ | FIFO | |
| +-------+-------------+ |
+-------v-------+ | |
| Receive Packet| +-------v-------------+ |
+-------+-------+ | Add Packet to | |
| | Window | |
+-------v-------+ +-------+-------------+ |
| Add to FIFO | | |
+---------------+ +-------v-------------+ No |
| End of Window? +-------+
+-------+-------------+ |
| Yes |
+-------v-------------+ |
| Calculate Features | |
+-------+-------------+ |
| |
+-------v-------------+ |
| HST: score_one + | |
| learn_one | |
+-------+-------------+ |
| |
+-------v-------------+ No |
| Score > Threshold? +-------+
+-------+-------------+
| Yes
+-------v-------------+
| PCAP Save |
| Logging |
| Alert |
+---------------------+
<img width="988" height="540" alt="screenshot1" src="https://github.com/user-attachments/assets/65ed2870-fb2c-4212-9db6-d74b10248809" />
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