回复: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
gaoliming
gaoliming at byosoft.com.cn
Fri Aug 13 01:37:35 UTC 2021
Bret:
I suggest to define new macro that follows EDKII style. This MACRO is only
used in CommandLib. Its impact should be small.
Thanks
Liming
发件人: devel at edk2.groups.io <devel at edk2.groups.io> 代表 Bret Barkelew via
groups.io
发送时间: 2021年8月13日 8:24
收件人: Yao, Jiewen <jiewen.yao at intel.com>; devel at edk2.groups.io;
bret at corthon.com; Kinney, Michael D <michael.d.kinney at intel.com>
抄送: Wang, Jian J <jian.j.wang at intel.com>; Zhang, Qi1
<qi1.zhang at intel.com>; Kumar, Rahul1 <rahul1.kumar at intel.com>
主题: Re: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
+ <mailto:michael.d.kinney at intel.com> @Kinney, Michael D
Mike, any thoughts on when “sticking with the file convention” breaks ECC?
Should I just ignore the rest of the file and pass ECC at all costs?
- Bret
From: Yao, Jiewen <mailto:jiewen.yao at intel.com>
Sent: Thursday, August 12, 2021 5:06 PM
To: Bret Barkelew <mailto:Bret.Barkelew at microsoft.com> ;
devel at edk2.groups.io <mailto:devel at edk2.groups.io> ; bret at corthon.com
<mailto:bret at corthon.com>
Cc: Wang, Jian J <mailto:jian.j.wang at intel.com> ; Zhang, Qi1
<mailto:qi1.zhang at intel.com> ; Kumar, Rahul1 <mailto:rahul1.kumar at intel.com>
Subject: RE: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
I don’t know the answer about ECC or PatchChecker.
I just know we need pass CI to merge the patch.
Thank you
Yao Jiewen
From: Bret Barkelew <Bret.Barkelew at microsoft.com
<mailto:Bret.Barkelew at microsoft.com> >
Sent: Friday, August 13, 2021 1:52 AM
To: devel at edk2.groups.io <mailto:devel at edk2.groups.io> ; bret at corthon.com
<mailto:bret at corthon.com>
Cc: Yao, Jiewen <jiewen.yao at intel.com <mailto:jiewen.yao at intel.com> >; Wang,
Jian J <jian.j.wang at intel.com <mailto:jian.j.wang at intel.com> >; Zhang, Qi1
<qi1.zhang at intel.com <mailto:qi1.zhang at intel.com> >; Kumar, Rahul1
<rahul1.kumar at intel.com <mailto:rahul1.kumar at intel.com> >
Subject: RE: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
Thoughts?
- Bret
From: devel at edk2.groups.io <mailto:devel at edk2.groups.io>
<devel at edk2.groups.io <mailto:devel at edk2.groups.io> > on behalf of Bret
Barkelew via groups.io <bret.barkelew=microsoft.com at groups.io
<mailto:bret.barkelew=microsoft.com at groups.io> >
Sent: Wednesday, August 11, 2021 12:37:52 PM
To: devel at edk2.groups.io <mailto:devel at edk2.groups.io>
<devel at edk2.groups.io <mailto:devel at edk2.groups.io> >; bret at corthon.com
<mailto:bret at corthon.com> <bret at corthon.com <mailto:bret at corthon.com> >
Cc: Yao, Jiewen <jiewen.yao at intel.com <mailto:jiewen.yao at intel.com> >; Jian
J Wang <jian.j.wang at intel.com <mailto:jian.j.wang at intel.com> >; Qi Zhang
<qi1.zhang at intel.com <mailto:qi1.zhang at intel.com> >; Rahul Kumar
<rahul1.kumar at intel.com <mailto:rahul1.kumar at intel.com> >
Subject: Re: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
Thoughts?
- Bret
From: devel at edk2.groups.io <mailto:devel at edk2.groups.io>
<devel at edk2.groups.io <mailto:devel at edk2.groups.io> > on behalf of Bret
Barkelew via groups.io <bret.barkelew=microsoft.com at groups.io
<mailto:bret.barkelew=microsoft.com at groups.io> >
Sent: Wednesday, August 4, 2021 9:32:32 AM
To: devel at edk2.groups.io <mailto:devel at edk2.groups.io>
<devel at edk2.groups.io <mailto:devel at edk2.groups.io> >; bret at corthon.com
<mailto:bret at corthon.com> <bret at corthon.com <mailto:bret at corthon.com> >
Cc: Yao, Jiewen <jiewen.yao at intel.com <mailto:jiewen.yao at intel.com> >; Jian
J Wang <jian.j.wang at intel.com <mailto:jian.j.wang at intel.com> >; Qi Zhang
<qi1.zhang at intel.com <mailto:qi1.zhang at intel.com> >; Rahul Kumar
<rahul1.kumar at intel.com <mailto:rahul1.kumar at intel.com> >
Subject: Re: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
Poking this one.
1. It’s a easy review with small, obvious code change.
2. I need some answers on “when is it okay to violate ECC/PatchCheck,
if the new code matches the style of the existing code. Should I endeavor to
pass the PatchCheck and ECCCheck with this patch only, and leave it in
conflict with the rest of the file?
Thanks!
- Bret
From: Bret Barkelew via groups.io
<mailto:bret.barkelew=microsoft.com at groups.io>
Sent: Friday, July 30, 2021 11:08 AM
To: devel at edk2.groups.io <mailto:devel at edk2.groups.io> ; bret at corthon.com
<mailto:bret at corthon.com>
Cc: Yao, Jiewen <mailto:jiewen.yao at intel.com> ; Jian J Wang
<mailto:jian.j.wang at intel.com> ; Qi Zhang <mailto:qi1.zhang at intel.com> ;
Rahul Kumar <mailto:rahul1.kumar at intel.com>
Subject: Re: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
Note, even though this keeps with the style of the rest of the file, it
breaks ECC:
SecurityPkg/Library: Add Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib by
corthon ・ Pull Request #1848 ・ tianocore/edk2 (github.com) <https://nam06.
safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Ftianocore%2
Fedk2%2Fpull%2F1848&data=04%7C01%7CBret.Barkelew%40microsoft.com%7Ce90f066a5
a8c4feae73108d95dee3ec3%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C6376441
00117879377%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJB
TiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=7uX%2FX1sJDbWsxeqYtqfQIFXBbDRVnii7kc
J1nri65T4%3D&reserved=0>
PROGRESS - --Running SecurityPkg: EccCheck Test NO-TARGET --
ERROR -
ERROR -
ERROR - EFI coding style error
ERROR - *Error code: 8001
ERROR - *Only capital letters are allowed to be used for #define
declarations
ERROR - *file:
//home/vsts/work/1/s/SecurityPkg/Library/Tpm2CommandLib/Tpm2NVStorage.c
ERROR - *Line number: 27
ERROR - *The #define name [RC_NV_UndefineSpaceSpecial_nvIndex] does no
Thoughts?
- Bret
From: Bret Barkelew via groups.io <mailto:bret=corthon.com at groups.io>
Sent: Friday, July 30, 2021 10:55 AM
To: devel at edk2.groups.io <mailto:devel at edk2.groups.io>
Cc: Yao, Jiewen <mailto:jiewen.yao at intel.com> ; Jian J Wang
<mailto:jian.j.wang at intel.com> ; Qi Zhang <mailto:qi1.zhang at intel.com> ;
Rahul Kumar <mailto:rahul1.kumar at intel.com>
Subject: [EXTERNAL] [edk2-devel] [PATCH v1 1/1] SecurityPkg/Library: Add
Tpm2NvUndefineSpaceSpecial to Tpm2CommandLib
Used to provision and maintain certain HW-defined NV spaces.
REF:
https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbugzilla.t
ianocore.org%2Fshow_bug.cgi%3Fid%3D2994 <https://nam06.safelinks.protection.
outlook.com/?url=https%3A%2F%2Fbugzilla.tianocore.org%2Fshow_bug.cgi%3Fid%3D
2994&data=04%7C01%7CBret.Barkelew%40microsoft.com%7Ce90f066a5a8c4feae73108d9
5dee3ec3%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637644100117889332%7CU
nknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJ
XVCI6Mn0%3D%7C1000&sdata=padkn1C%2BUQzKQSPo5gyurkMYW5ihwyf2Wm2mp2lrRKg%3D&re
served=0>
&data=04%7C01%7CBret.Barkelew%40microsoft.com%7Cb7ae3c62047c48fc85d908d9
53833ca0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637632645397602953%7CU
nknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJ
XVCI6Mn0%3D%7C1000&sdata=s96M3RvxMOY831Vfr1nt%2Fz1h3cyb6jU9eFzvjKO7Dtc%3
D&reserved=0
Signed-off-by: Bret Barkelew <bret.barkelew at microsoft.com
<mailto:bret.barkelew at microsoft.com> >
Cc: Jiewen Yao <jiewen.yao at intel.com <mailto:jiewen.yao at intel.com> >
Cc: Jian J Wang <jian.j.wang at intel.com <mailto:jian.j.wang at intel.com> >
Cc: Qi Zhang <qi1.zhang at intel.com <mailto:qi1.zhang at intel.com> >
Cc: Rahul Kumar <rahul1.kumar at intel.com <mailto:rahul1.kumar at intel.com> >
---
SecurityPkg/Library/Tpm2CommandLib/Tpm2NVStorage.c | 122
++++++++++++++++++++
SecurityPkg/Include/Library/Tpm2CommandLib.h | 22 ++++
2 files changed, 144 insertions(+)
diff --git a/SecurityPkg/Library/Tpm2CommandLib/Tpm2NVStorage.c
b/SecurityPkg/Library/Tpm2CommandLib/Tpm2NVStorage.c
index 87572de20164..7931fade9190 100644
--- a/SecurityPkg/Library/Tpm2CommandLib/Tpm2NVStorage.c
+++ b/SecurityPkg/Library/Tpm2CommandLib/Tpm2NVStorage.c
@@ -24,6 +24,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#define RC_NV_UndefineSpace_authHandle (TPM_RC_H + TPM_RC_1)
#define RC_NV_UndefineSpace_nvIndex (TPM_RC_H + TPM_RC_2)
+#define RC_NV_UndefineSpaceSpecial_nvIndex (TPM_RC_H + TPM_RC_1)
+
#define RC_NV_Read_authHandle (TPM_RC_H + TPM_RC_1)
#define RC_NV_Read_nvIndex (TPM_RC_H + TPM_RC_2)
#define RC_NV_Read_size (TPM_RC_P + TPM_RC_1)
@@ -74,6 +76,20 @@ typedef struct {
TPMS_AUTH_RESPONSE AuthSession;
} TPM2_NV_UNDEFINESPACE_RESPONSE;
+typedef struct {
+ TPM2_COMMAND_HEADER Header;
+ TPMI_RH_NV_INDEX NvIndex;
+ TPMI_RH_PLATFORM Platform;
+ UINT32 AuthSessionSize;
+ TPMS_AUTH_COMMAND AuthSession;
+} TPM2_NV_UNDEFINESPACESPECIAL_COMMAND;
+
+typedef struct {
+ TPM2_RESPONSE_HEADER Header;
+ UINT32 AuthSessionSize;
+ TPMS_AUTH_RESPONSE AuthSession;
+} TPM2_NV_UNDEFINESPACESPECIAL_RESPONSE;
+
typedef struct {
TPM2_COMMAND_HEADER Header;
TPMI_RH_NV_AUTH AuthHandle;
@@ -506,6 +522,112 @@ Done:
return Status;
}
+/**
+ This command removes an index from the TPM.
+
+ @param[in] NvIndex The NV Index.
+ @param[in] IndexAuthSession Auth session context for the Index
auth/policy
+ @param[in] PlatAuthSession Auth session context for the Platform
auth/policy
+
+ @retval EFI_SUCCESS Operation completed successfully.
+ @retval EFI_NOT_FOUND The command was returned successfully,
but NvIndex is not found.
+ @retval EFI_UNSUPPORTED Selected NvIndex does not support
deletion through this call.
+ @retval EFI_SECURITY_VIOLATION Deletion is not authorized by current
policy session.
+ @retval EFI_INVALID_PARAMETER The command was unsuccessful.
+ @retval EFI_DEVICE_ERROR The command was unsuccessful.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2NvUndefineSpaceSpecial (
+ IN TPMI_RH_NV_INDEX NvIndex,
+ IN TPMS_AUTH_COMMAND *IndexAuthSession OPTIONAL,
+ IN TPMS_AUTH_COMMAND *PlatAuthSession OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ TPM2_NV_UNDEFINESPACESPECIAL_COMMAND SendBuffer;
+ TPM2_NV_UNDEFINESPACESPECIAL_RESPONSE RecvBuffer;
+ UINT32 SendBufferSize;
+ UINT32 RecvBufferSize;
+ UINT8 *Buffer;
+ UINT32 IndexAuthSize, PlatAuthSize;
+ TPM_RC ResponseCode;
+
+ //
+ // Construct command
+ //
+ SendBuffer.Header.tag = SwapBytes16(TPM_ST_SESSIONS);
+ SendBuffer.Header.commandCode =
SwapBytes32(TPM_CC_NV_UndefineSpaceSpecial);
+
+ SendBuffer.NvIndex = SwapBytes32 (NvIndex);
+ SendBuffer.Platform = SwapBytes32 (TPM_RH_PLATFORM);
+
+ //
+ // Marshall the Auth Sessions for the two handles.
+ Buffer = (UINT8 *)&SendBuffer.AuthSession;
+ // IndexAuthSession
+ IndexAuthSize = CopyAuthSessionCommand (IndexAuthSession, Buffer);
+ Buffer += IndexAuthSize;
+ // PlatAuthSession
+ PlatAuthSize = CopyAuthSessionCommand (PlatAuthSession, Buffer);
+ Buffer += PlatAuthSize;
+ // AuthSessionSize
+ SendBuffer.AuthSessionSize = SwapBytes32(IndexAuthSize + PlatAuthSize);
+
+ // Update total command size.
+ SendBufferSize = (UINT32)(Buffer - (UINT8 *)&SendBuffer);
+ SendBuffer.Header.paramSize = SwapBytes32 (SendBufferSize);
+
+ //
+ // send Tpm command
+ //
+ RecvBufferSize = sizeof (RecvBuffer);
+ Status = Tpm2SubmitCommand (SendBufferSize, (UINT8 *)&SendBuffer,
&RecvBufferSize, (UINT8 *)&RecvBuffer);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ if (RecvBufferSize < sizeof (TPM2_RESPONSE_HEADER)) {
+ DEBUG ((EFI_D_ERROR, "Tpm2NvUndefineSpaceSpecial - RecvBufferSize Error
- %x\n", RecvBufferSize));
+ Status = EFI_DEVICE_ERROR;
+ goto Done;
+ }
+
+ ResponseCode = SwapBytes32(RecvBuffer.Header.responseCode);
+ if (ResponseCode != TPM_RC_SUCCESS) {
+ DEBUG ((EFI_D_ERROR, "Tpm2NvUndefineSpaceSpecial - responseCode -
%x\n", SwapBytes32(RecvBuffer.Header.responseCode)));
+ }
+ switch (ResponseCode) {
+ case TPM_RC_SUCCESS:
+ // return data
+ break;
+ case TPM_RC_ATTRIBUTES:
+ case TPM_RC_ATTRIBUTES + RC_NV_UndefineSpaceSpecial_nvIndex:
+ Status = EFI_UNSUPPORTED;
+ break;
+ case TPM_RC_NV_AUTHORIZATION:
+ Status = EFI_SECURITY_VIOLATION;
+ break;
+ case TPM_RC_HANDLE + RC_NV_UndefineSpaceSpecial_nvIndex: //
TPM_RC_NV_DEFINED:
+ Status = EFI_NOT_FOUND;
+ break;
+ case TPM_RC_VALUE + RC_NV_UndefineSpace_nvIndex:
+ Status = EFI_INVALID_PARAMETER;
+ break;
+ default:
+ Status = EFI_DEVICE_ERROR;
+ break;
+ }
+
+Done:
+ //
+ // Clear AuthSession Content
+ //
+ ZeroMem (&SendBuffer, sizeof(SendBuffer));
+ ZeroMem (&RecvBuffer, sizeof(RecvBuffer));
+ return Status;
+} // Tpm2NvUndefineSpaceSpecial()
+
/**
This command reads a value from an area in NV memory previously defined
by TPM2_NV_DefineSpace().
diff --git a/SecurityPkg/Include/Library/Tpm2CommandLib.h
b/SecurityPkg/Include/Library/Tpm2CommandLib.h
index ee8eb622951c..8d7b4998d98d 100644
--- a/SecurityPkg/Include/Library/Tpm2CommandLib.h
+++ b/SecurityPkg/Include/Library/Tpm2CommandLib.h
@@ -364,6 +364,28 @@ Tpm2NvUndefineSpace (
IN TPMS_AUTH_COMMAND *AuthSession OPTIONAL
);
+/**
+ This command removes an index from the TPM.
+
+ @param[in] NvIndex The NV Index.
+ @param[in] IndexAuthSession Auth session context for the Index
auth/policy
+ @param[in] PlatAuthSession Auth session context for the Platform
auth/policy
+
+ @retval EFI_SUCCESS Operation completed successfully.
+ @retval EFI_NOT_FOUND The command was returned successfully,
but NvIndex is not found.
+ @retval EFI_UNSUPPORTED Selected NvIndex does not support
deletion through this call.
+ @retval EFI_SECURITY_VIOLATION Deletion is not authorized by current
policy session.
+ @retval EFI_INVALID_PARAMETER The command was unsuccessful.
+ @retval EFI_DEVICE_ERROR The command was unsuccessful.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2NvUndefineSpaceSpecial (
+ IN TPMI_RH_NV_INDEX NvIndex,
+ IN TPMS_AUTH_COMMAND *IndexAuthSession OPTIONAL,
+ IN TPMS_AUTH_COMMAND *PlatAuthSession OPTIONAL
+ );
+
/**
This command reads a value from an area in NV memory previously defined
by TPM2_NV_DefineSpace().
--
2.31.1.windows.1
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