This directory contains a tool that is used to create the test data in the efi/testdata directory.

It depends on a minimal set of source data (stored in the efi/testdata/src directory) that includes pre-generated RSA keys, public certificates, source code for mock EFI binaries and public dbx updates from uefi.org.

It outputs event logs, EFI variable stores, EFI binaries and signature database updates for testing.

It currently only supports being executed in a Debian-like environment.

Note that recreating the EFI binaries and signature databases is not entirely reproducible because their signatures include timestamps. This means they are recreated with different file hashes, but this doesn't affect the actual tests.

Reproducibility of test data is dependent on the environment in which the data is built. This is particularly true for the EFI binaries, which are only reproducible when built with the same toolchain. The tool saves information about the build environment to buildenv.yaml.

This tool depends on make, sbsigntools, gcc and binutils.