https://github.com/kioubit/l3mp

Multiplex layer 3 tunnels through another layer 3 tunnel (eBPF)
https://github.com/kioubit/l3mp

ebpf networking tunnel

Last synced: about 2 months ago
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Multiplex layer 3 tunnels through another layer 3 tunnel (eBPF)

• Host: GitHub
• URL: https://github.com/kioubit/l3mp
• Owner: Kioubit
• Created: 2024-01-25T14:33:49.000Z (12 months ago)
• Default Branch: master
• Last Pushed: 2024-01-25T17:45:06.000Z (12 months ago)
• Last Synced: 2024-11-20T01:17:17.583Z (about 2 months ago)
• Topics: ebpf, networking, tunnel
• Language: C
• Homepage:
• Size: 57.6 KB
• Stars: 3
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# L3MP

Multiplex up to 16 layer 3 tunnels through a single layer 3 tunnel

- Uses the "diffserv" field in the IPv4/IPv6 header to label packets

- Zero byte overhead (no MTU penalty)

- Performant: Packets are never copied to userspace.

(Uses an eBPF TC direct-action program that runs in the kernel eBPF sandbox)

## Usage:

Requires root privileges or the CAP_NET_ADMIN linux capability

```

./l3mp  

    The interface-label definitions file contains up to 16 entries in this format:

    @

    Where  is a number from 0 to 16

```

### Building

#### Main program

Run ``go build -o L3MP .``

#### Re-compile included eBPF program (Optional)

Requires llvm and clang to be installed. To start the compilation, run ``go generate .``