37 lines
1.5 KiB
Diff
37 lines
1.5 KiB
Diff
From ecfc3b4c1e9a59c6a230398bced24118d19ea099 Mon Sep 17 00:00:00 2001
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From: William Roberts <william.c.roberts@intel.com>
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Date: Thu, 7 Jul 2022 09:00:19 -0500
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Subject: [PATCH 23/23] SAPI: fix number of handles for FlushContext
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The lookup table for the number of command handles for
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Tss2_Sys_FlushContext has the count set to 1, when in reality the
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command takes no handles in the handle area but a handle as the input
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parameter. This works currently because handles and parameters are just
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concatenated and the parsing logic on the TPM just unpacks them, so in
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this case, thet're in the same spot with the same value. This goes
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unnoticed until you call Tss2_Sys_GetCpBuffer and the buffer is empty as
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the logic things its a handle in the handle area and not a handle in the
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parameter area.
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Signed-off-by: William Roberts <william.c.roberts@intel.com>
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---
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src/tss2-sys/sysapi_util.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/tss2-sys/sysapi_util.c b/src/tss2-sys/sysapi_util.c
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index d84acc5d..a92f47a2 100644
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--- a/src/tss2-sys/sysapi_util.c
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+++ b/src/tss2-sys/sysapi_util.c
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@@ -262,7 +262,7 @@ static int GetNumHandles(TPM2_CC commandCode, bool req)
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{ TPM2_CC_FirmwareRead, 0, 0 },
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{ TPM2_CC_ContextSave, 1, 0 },
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{ TPM2_CC_ContextLoad, 0, 1 },
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- { TPM2_CC_FlushContext, 1, 0 },
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+ { TPM2_CC_FlushContext, 0, 0 },
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{ TPM2_CC_EvictControl, 2, 0 },
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{ TPM2_CC_ReadClock, 0, 0 },
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{ TPM2_CC_ClockSet, 1, 0 },
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--
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2.34.3
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