fix GetCapabilityOwner function

PATCH New Kouichi Yasaki 1 participant 1 message Dec 28, 2007

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Kouichi Yasaki

author

2007-12-28 16:14 UTC #0 lore raw

PATCH 1/1 fix GetCapabilityOwner function

Hi,

GetCapabilityOwner function's behavior of vtpm is different from that of
real tpm device. By the difference, TPM Manager on HVM domain could not detect whether TPM device has an owner or not.

[TPM Manager]
http://sourceforge.net/projects/tpmmanager

Attached patch fix the difference.

Signed-off-by Kouichi YASAKI <[email protected]>

Thanks
Kouichi YASAKI

tools/vtpm/tpm_emulator.patch +15 -0

diff -r 7fbc521b07a9 tools/vtpm/tpm_emulator.patch
@@ -547,6 +547,21 @@ diff -uprN orig/tpm_emulator-0.4/README 
  Installation
  --------------------------------------------------------------------------
  The compilation and installation process uses the build environment for 
+diff -uprN orig/tpm_emulator-0.4/tpm/tpm_capability.c tpm_emulator/tpm/tpm_capability.c
+--- orig/tpm_emulator-0.4/tpm/tpm_capability.c	2006-06-23 19:37:07.000000000 +0900
++++ tpm_emulator/tpm/tpm_capability.c	2007-12-28 22:50:19.000000000 +0900
+@@ -701,7 +701,10 @@ TPM_RESULT TPM_GetCapabilityOwner(TPM_VE
+   TPM_RESULT res;
+   
+   info("TPM_GetCapabilityOwner()");
+-  
++ 
++  if (!tpmData.permanent.flags.owned) {
++    return TPM_NOSRK;
++  } 
+   /* Verify owner authorization */
+   res = tpm_verify_auth(auth1, tpmData.permanent.data.ownerAuth, TPM_KH_OWNER);
+   if (res != TPM_SUCCESS) return res;
 diff -uprN orig/tpm_emulator-0.4/tpm/tpm_cmd_handler.c tpm_emulator/tpm/tpm_cmd_handler.c
 --- orig/tpm_emulator-0.4/tpm/tpm_cmd_handler.c	2006-06-23 19:37:07.000000000 +0900
 +++ tpm_emulator/tpm/tpm_cmd_handler.c	2007-09-12 20:23:00.000000000 +0900

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