Path of the Persistent object created in the Trusted Application of Secure Storage example

[gunaMect]

Hi, I have been trying out the example, secure_storage -> I need to know the path of the Object being created. I am using virtual machine Linux setup for QemuV8 environment.

https://github.com/linaro-swg/optee_examples/blob/378dc0db2d5dd279f58a3b6cb3f78ffd6b165035/secure_storage/ta/secure_storage_ta.c#L156C11-L156C11

It gets the object id from the Client application as Object#1 & Object#2 -> https://github.com/linaro-swg/optee_examples/blob/378dc0db2d5dd279f58a3b6cb3f78ffd6b165035/secure_storage/host/main.c#L172 https://github.com/linaro-swg/optee_examples/blob/378dc0db2d5dd279f58a3b6cb3f78ffd6b165035/secure_storage/host/main.c#L173

Here, I need to know the exact path in the REE file system. Is it available in the /data/tee path?

Also, is it possible to provide an absolute path of my own to store the object? Thanks.

[jenswi-linaro]

The files are stored under /data/tee, but they are just numbered from 0 and upwards. The file dirf.db contains a list of all the files and mappings to the object ids. All the files are encrypted as described at https://optee.readthedocs.io/en/latest/architecture/secure_storage.html#tee-file-structure-in-linux-file-system

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