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3 Commits

Author SHA1 Message Date
Petr Vorel
1f4e423e7c pcr_tss: Fix compilation for old compilers 
pcr_tss.c: In function 'pcr_selections_match':
pcr_tss.c:73:2: error: 'for' loop initial declarations are only allowed in C99 mode
  for (int i = 0; i < a->count; i++) {
  ^
pcr_tss.c:73:2: note: use option -std=c99 or -std=gnu99 to compile your code
pcr_tss.c:78:3: error: 'for' loop initial declarations are only allowed in C99 mode
   for (int j = 0; j < a->pcrSelections[i].sizeofSelect; j++) {
   ^

Fixes: 03f99ea ("ima-evm-utils: Add support for Intel TSS2 for PCR
reading")

Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
 2020-07-22 07:01:12 -04:00
Petr Vorel
80d3fda608 ima-evm-utils: Check for tsspcrread in runtime 
instead of checking in build time as it's runtime dependency.
Also log when tsspcrread not found to make debugging easier.

We search for tsspcrread unless there is tss2-esys with Esys_PCR_Read(),
thus pcr_none.c was dropped as unneeded.

file_exist(), tst_get_path() and MIN() taken from LTP project.

Signed-off-by: Petr Vorel <pvorel@suse.cz>
[zohar@linux.ibm.com: added USE_FPRINTF definitions]
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
 2020-07-15 21:49:26 -04:00
Patrick Uiterwijk
03f99ea6d0 ima-evm-utils: Add support for Intel TSS2 for PCR reading 
This patch makes it possible to use the Intel TSS2 for getting
PCR values from the SHA1/SHA256 banks on a TPM2.
It is somewhat naive as it doesn't use the multi-PCR selection
that TSS2 is capable of, that is for a future patch.

Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
[zohar@linux.ibm.com: added missing "stdint.h" in pcr_tsspcrread.c]
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
 2020-05-19 17:28:00 -04:00