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2017-05-02metadata: get and set policies from goJoe Richey
This commit adds in the ability to get and set policy data from go using the GetPolicy and SetPolicy functions. This is done via a patch of the x/sys/unix package that exposes the filesystem encryption structures. Note that not all the fields of the PolicyData protocol buffer are needed to get and set policies. The wrapped_policy_keys are not used and will be written and read by other components of fscrypt. To run the policy tests, the environment variable BASE_TEST_DIR must be set to a directory for testing on a filesystem that supports encryption. Change-Id: I13b1d983356845f3ffc1945cedf53234218f32e5
2017-05-02metadata: introduce protobuf structuresJoe Richey
This commit adds in the metadata package. The primary purpose of this package is to provide the on-disk metadata structures in the form of protocol buffers. This includes: - Policy metadata structure - Protector metadata structure - Config file structure - All necessary sub-structures (wrapped keys, parameters, etc) This commit also adds in an example usage of the Config structure, which represents the structure of the global config file. All the package does at this point is convert between the Config structure and a JSON representation. Here we introduce govendor, which is described more in the README. This means we will have all of our Go dependencies in the vendor subdirectory. This means we will have no Go source dependencies, only dependencies on the build tools (Go and govendor). The README describes this in detail. Note that we commit the generated files. see: https://blog.golang.org/generate Change-Id: Iaacd46666b5d3e4e865a0f4045dd63ed7e3d6f96