Feature Request: Support for FMI 3.0 Layered Standards (FMI-LS-BUS and FMI-LS-XCP)

[AmanChaturvedi24]

This is a feature request related to a problem described below:

We are building Virtual ECU and Software-in-the-Loop (SiL) simulation environments that require standardized automotive network buses (CAN, LIN, Ethernet) and measurement/calibration interfaces. The FMI project defines these workflows under the FMI Layered Standards (FMI-LS) specifications (such as FMI-LS-BUS and FMI-LS-XCP).

Currently, fmu4cpp provides great support for standard FMI 3.0 Co-Simulation FMUs, but it lacks native capabilities to generate the necessary layered standard manifests and assets required to output fully compliant FMI-LS FMUs.

Hoping to have a solution like :

We would love to see fmu4cpp extend its FMI 3.0 export capabilities to natively support the packaging of FMI Layered Standards. Ideally, this would include:

1. Manifest Support: C++ API builders/helpers to automatically generate and inject the required layered XML metadata files (e.g., fmiLsBus.xml or fmiLsXcp.xml) into the root of the FMU.
2. Resource Packaging: Built-in utilities to target and bundle communication protocol description files (like .dbc, .arxml, .ldf, or .a2l) directly into the FMU's resources/ folder.
3. FMI 3.0 Variable Bindings: Clean code-generation abstractions to link network frames and physical signals to FMI 3.0 native Clocks, Terminals, and Binary variables for High-Cut and Low-Cut simulation abstractions.

Additional context

Adding this functionality would make fmu4cpp one of the premier open-source C++ frameworks, aligning it perfectly with the evolving FMI 3.0 ecosystem.