Telesect

Telesect is an integrated, low-overhead communication backbone and operational engine designed for secure, multiplexed data transmission and native telemetry. It operates as a reusable networking primitive, providing a foundational chassis for custom cloud-native transport layouts.

⚠️ Project Scope: Telesect is an engineering primitive and transport-layer engine. It is NOT a chat application or a high-level user messaging platform.

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🛠️ Architectural Pillars & Strict Rules

1. Pure Go Standard Library: Zero external dependencies for core networking operations (net, sync, crypto/tls).
2. Deterministic Resource Reclamation: Explicit design boundaries for backpressure, strict memory allocation controls, and graceful descriptor teardown.
3. Verified Performance: No premature optimization claims without explicit benchmarks (go test -bench).
4. Strict Semantic Versioning: Moving deliberately from baseline to production matrices (v0.1.0 starting layout).

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🗺️ Engineering Roadmap

📦 Phase 1: Relay Foundation — [COMPLETE]

• Full-Duplex Connection Engine (Decoupled Write/Read Worker Loops)
• Thread-Safe Registry Switchboard (sync.RWMutex protected)
• Graceful Signal Trapping (SIGINT/SIGTERM) and Controlled Cascading Teardown

🎛️ Phase 2: The Protocol & Framing Layer — [COMPLETE]

• Milestone 2.1 — TLV Binary Framing & Hardening
  • Implement rigid 5-byte wire contract with Network Byte Order (Big-Endian) serialization.
  • Build defensive OOM mitigation and maximum frame ceiling validation checks.
  • Route validated packet ingress streams to the central master InboundRouter switchboard channel.
• Milestone 2.2 — Application-Layer Flow Control & Backpressure
  • Introduce explicit Control Frames (0x05 WINDOW_UPDATE).
  • Implement queue saturation tracking and upstream execution throttling.
• Milestone 2.3 — Measurement & Profiling Baseline
  • Establish high-throughput micro-benchmarks (go test -bench -benchmem).
  • Profile hot paths using pprof and optimize allocations using pooling strategies (sync.Pool and fixed-size slice arrays).

🔒 Phase 3: The Secure Trust Layer — [UP NEXT]

• Milestone 3.1 — mTLS Transport & Identity Binding
• Milestone 3.2 — Stream-Level Role-Based Access Control (RBAC)
• Milestone 3.3 — Perimeter Defenses & Traffic Operations

📊 Phase 4: Native Telemetry & TUI Control Plane — [BACKLOG]

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🚀 Getting Started

Prerequisites

• Go 1.22+ (utilizing standard library execution patterns)

Building and Running the Backbone

1. Clone the repository into your development directory:

   git clone [https://github.com/Telesect/telesect.git](https://github.com/Telesect/telesect.git)
   cd telesect

2. Execute the test runner with the runtime race detector enabled to verify infrastructure integrity:

   go test -v -race ./...

3. Run the micro-throughput benchmarks:

   go test -bench=BenchmarkServer_Throughput -benchmem ./internal/transport

4. Spin up the core relay daemon

   go run cmd/telesectd/main.go

Protocol Framing Format

+-----------+-----------------------+-----------------------+
| Type (1B) |      Length (4B)      |   Value (Variable)    |
+-----------+-----------------------+-----------------------+
|  Offset 0 |      Offsets 1-4      |       Offset 5+       |
+-----------+-----------------------+-----------------------+

• Type (1 Byte / Offset 0): A transparent routing identifier. The engine enforces a strict boundary between internal transport operations and external application payloads.

  • 0x00 - 0x0F (Internal Engine Reserved): Exclusively intercepted and processed by the transport layer. External applications never see these.

    • Active: 0x05 - Window Update / Flow Control Frame.

• 0x10 - 0xFF (Application Space): 100% payload-agnostic. The engine transparently routes these to the central switchboard. Developers define their own contracts here.

  • Example Use Case: 0x10 - Health/Diagnostic Service

  • Example Use Case: 0x11 - Agritech/Telemetry Data Vector

  • Example Use Case: 0x12 - TUI Control Plane Command

• Length (4 Bytes / Offsets 1-4): Big-endian 32-bit unsigned integer defining the explicit sizing boundaries of the trailing payload (Max: 16MB).

• Value (Variable Sizing / Offset 5+): Raw application or network command bytes.

📈 Performance Log & Baselines

To respect Architectural Pillar #3, performance mutations are logged systematically against baseline engineering milestones.

Baseline Run: Milestone 2.1 Complete (Raw Ingestion Floor)

• Environment: AMD Ryzen 3 3250U (4 Logical Threads), Linux amd64

• Metrics:

  • Latency: 26884 ns/op (~37,000 packets/sec end-to-end loopback processing)

  • Memory Overhead: 138 B/op

  • Heap Allocations: 4 allocs/op

Optimized Run: Milestone 2.3 Complete (Zero-Allocation Hot Path)

• Environment: AMD Ryzen 3 3250U (4 Logical Threads), Linux amd64

• Metrics:

  • Latency: 26,118 ns/op

  • Memory Overhead: 0 B/op

  • Heap Allocations: 0 allocs/op

Notes: Achieved via sync.Pool packet recycling and fixed-size struct slice arrays for header bounds checking.

License

Telesect is open-source software licensed under the Apache License, Version 2.0. See the LICENSE file for full details.