Implementation of Common Functionality #17
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Adds the AssignRandomValue command. To get a random value in the PSA architecture you need to instatiate a random value generator in the a_declarations section. This is achieved by declaring it as a state variable. To get a random value only the variable and the name of the random number genrator need to be supplied to the AssignRandomValue constructor. This will end up to call the read method of the rng.
This helps when testing hashes and other methods where the output might be non-readable acii.
this command assigns the hash of source-variable to the target-variable execute is note yet implemented adds simple test for CRC32
Adding GetTimestamp command. According to PSA specification the width of the Timestamp_t data type is dependent on the implementation. In case of ebpf this is a u64. Defined in psa.h A new data type is added to P4rrot because otherwise the p4c compiler complains.
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Hi Jonas and Alex, Could you please add some examples for the random number generator and the timestamping? The main goal is to show how to use them and ensure that the generated code compiles. (You do not need to create test packets.) Thank you in advance! |
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Hi Csaba, |
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Adding new commands to the psa ebpf backend in p4rrot.