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70 lines
2.2 KiB
70 lines
2.2 KiB
// This file was extracted from the TCG Published |
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// Trusted Platform Module Library |
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// Part 3: Commands |
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// Family "2.0" |
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// Level 00 Revision 01.16 |
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// October 30, 2014 |
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#include "InternalRoutines.h" |
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#include "SetCommandCodeAuditStatus_fp.h" |
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TPM_RC |
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TPM2_SetCommandCodeAuditStatus( |
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SetCommandCodeAuditStatus_In *in // IN: input parameter list |
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) |
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{ |
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TPM_RC result; |
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UINT32 i; |
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BOOL changed = FALSE; |
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// The command needs NV update. Check if NV is available. |
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// A TPM_RC_NV_UNAVAILABLE or TPM_RC_NV_RATE error may be returned at |
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// this point |
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result = NvIsAvailable(); |
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if(result != TPM_RC_SUCCESS) |
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return result; |
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// Internal Data Update |
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// Update hash algorithm |
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if( in->auditAlg != TPM_ALG_NULL |
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&& in->auditAlg != gp.auditHashAlg) |
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{ |
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// Can't change the algorithm and command list at the same time |
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if(in->setList.count != 0 || in->clearList.count != 0) |
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return TPM_RC_VALUE + RC_SetCommandCodeAuditStatus_auditAlg; |
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// Change the hash algorithm for audit |
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gp.auditHashAlg = in->auditAlg; |
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// Set the digest size to a unique value that indicates that the digest |
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// algorithm has been changed. The size will be cleared to zero in the |
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// command audit processing on exit. |
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gr.commandAuditDigest.t.size = 1; |
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// Save the change of command audit data (this sets g_updateNV so that NV |
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// will be updated on exit.) |
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NvWriteReserved(NV_AUDIT_HASH_ALG, &gp.auditHashAlg); |
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} else { |
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// Process set list |
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for(i = 0; i < in->setList.count; i++) |
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// If change is made in CommandAuditSet, set changed flag |
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if(CommandAuditSet(in->setList.commandCodes[i])) |
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changed = TRUE; |
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// Process clear list |
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for(i = 0; i < in->clearList.count; i++) |
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// If change is made in CommandAuditClear, set changed flag |
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if(CommandAuditClear(in->clearList.commandCodes[i])) |
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changed = TRUE; |
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// if change was made to command list, update NV |
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if(changed) |
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// this sets g_updateNV so that NV will be updated on exit. |
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NvWriteReserved(NV_AUDIT_COMMANDS, &gp.auditComands); |
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} |
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return TPM_RC_SUCCESS; |
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}
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