obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
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How to build
Building Vanetza is accomplished by the CMake build system. Hence, CMake needs to be available on the build host.
Prerequisites
You need following tools and libraries on your system for compiling Vanetza:
- C++11 compatible compiler, e.g. GNU GCC or Clang
- CMake 3.12 or higher
- Boost 1.58 or higher
- GeographicLib 1.37 or higher
- Crypto++ 5.6.1 or higher
If OpenSSL (1.0 or 1.1) or LibreSSL is available on your system, an alternative security backend implementation is compiled along with the Crypto++ based backend.
See security::Backend and security::create_backend for more details.
!!! hint If you are building on Ubuntu 16.04 or 18.04, please note that these Ubuntu releases ship outdated CMake versions unsuitable for Vanetza. Have a look at the Kitware APT Repository, which lists some of your options for installing an up-to-date CMake version.
Compilation
Following command line snippet demonstrates the build process using a generated Makefile. Other CMake generators and build directory setups can be used as well.
:::shell
cd vanetza
mkdir build && cd build
cmake ..
make
Unit tests
Vanetza comes with many unit tests covering the most critical parts.
When the CMake option BUILD_TESTS is enabled, the Google Test sources are downloaded by the build system automatically.
The built test cases are standalone executables located in the tests subdirectory of your build directory.
For running all test cases, I recommend to invoke ctest in your build directory.
Integrating Vanetza
Vanetza is primarily a library project intended for integration by other projects, e.g. V2X simulation tools such as Artery.
Projects using CMake can integrate Vanetza most easily by calling find_package(Vanetza) and then refer to the imported Vanetza targets, such as Vanetza::vanetza.