Add support for tapping into TPM communication #515
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This PR adds support for tapping into all communication to and from the TPM. It's currently only supported on Linux.
A couple concrete implementations of taps are provided too, incl. one that writes binary data by simply writing all reads and writes to a single
io.Writer
, and one that writes inpcapng
format. The binary tap is compatible with https://github.com/joholl/tpmstream, and the output of thepcapng
tap can be inspected using Wireshark (or compatible tooling).Example output: