Add pcrauth status

[idesai]

Fixes #3330 Fixes #3333

[idesai]

TODO:

• [ ] Need to add a test
• [x] Must implement #3333

[codecov[bot]]

Codecov Report

Attention: 141 lines in your changes are missing coverage. Please review.

Comparison is base (b7e1d2f) 74.38% compared to head (0ae8cee) 73.97%.

Files	Patch %	Lines
lib/tpm2_util.c	7.04%	66 Missing :warning:
tools/tpm2_pcrsetauthvalue.c	1.53%	64 Missing :warning:
lib/tpm2.c	0.00%	11 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3337      +/-   ##
==========================================
- Coverage   74.38%   73.97%   -0.42%     
==========================================
  Files         173      174       +1     
  Lines       23673    23835     +162     
==========================================
+ Hits        17610    17631      +21     
- Misses       6063     6204     +141     

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[AndreasFuchsTPM]

Hmmmmm... you know that pcrsetauthvalue is forbidden for all PTP compatible TPMs, right ? @idesai What's the use case ?

[idesai]

Hmmmmm... you know that pcrsetauthvalue is forbidden for all PTP compatible TPMs, right ? @idesai What's the use case ?

This is implementing the command spec for TPMs that implement the command.

[AndreasFuchsTPM]

Please add big warnings to the manpage and also to the error printf's that this is not included in PC-Client compatible TPM; indicating that this is actually forbidden for PTP compliant TPMs.