UDSLib

Overview

UDSLib is a portable ISO 14229-1 protocol stack designed for safety-critical environments where deterministic behavior and auditability matter.

1. Safety by Design

• Static memory model: zero runtime allocation.
• Caller-owned buffers: the application controls memory.
• Overflow protection: guards multi-packet reads (SID 0x22).

2. Deterministic Timing

• Tickless timers: P2/P2* use monotonic time to avoid drift.
• Non-blocking: state machine won’t stall your main loop.
• Async dispatch: NRC 0x78 handled automatically for long ops.

3. Safety Gates

• Application approval required for destructive services (Flash, Reset, Write).
• Vehicle-state awareness delegated to your app (you keep control).

4. Developer Ecosystem

• Wireshark dissector for readable UDS traces.
• Python bindings (`pyudslib`) for host-side tests.
• Zephyr guides for RTOS integration.

5. Verification

• Host-based tests included.
• Fuzzing against malformed packets.
• MISRA-aligned codebase.

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Want to discuss deployment? Email andrii@shylenko.com.