Modernize C File Monitor Sensor to Rust

Enhancement proposal

Release notes

Modernize the C file monitor sensor to Rust for improved memory safety, security, and maintainability.

Problem to solve

The current C file monitor sensor contains intentional security vulnerabilities and lacks modern memory safety guarantees. Migrating to Rust will eliminate entire classes of vulnerabilities while maintaining performance.

Environment information

• OS (Linux/Unix, macOS, Windows) and version: Cross-platform
• Metrics type (Prometheus, file, Arduino, other hardware sensors): File system metrics
• Building from source: Compiler and version (g++ --version, clang++ --version): Rust toolchain

Proposal

Rewrite the C file monitor sensor in Rust with the following tasks:

• Set up Rust project structure
• Implement configuration loading
• Implement directory scanning
• Implement file metrics collection
• Implement JSON output
• Implement security event logging
• Add comprehensive error handling
• Create build and usage documentation
• Add unit tests
• Add integration tests
• Update CI/CD pipeline