[edk2-devel] [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

[edk2-devel] [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

[Li, Yi]

To avoid messy parsing of the Depex section of a Capsule, it would
be a lot easier for everyone involved if we preceded the Capsule Depex
Section with a length declaration. It provides simple bounds checking
to avoid having to parse the op-codes, but in the case of a malformed
depex being parsed, avoid other issues which can be messy.

Syntax
DECLARE_LENGTH <32-bit Length>
Description
Declares an 32-bit byte length of the entire dependency expression.
Behaviors and Restrictions
This opcode must be the first one in a dependency expression.

REF: UEFI spec 2.10 Table 23.4

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>

Yi Li (2):
  MdePkg: Add DECLARE_LENGTH opcode of dependency expression
  FmpDevicePkg: Add DECLARE_LENGTH opcode of dependency expression

 .../FmpDependencyLib/FmpDependencyLib.c       | 35 ++++++++
 .../PrivateInclude/FmpLastAttemptStatus.h     |  3 +
 .../EvaluateDependencyUnitTest.c              | 84 ++++++++++++++++---
 MdePkg/Include/Protocol/FirmwareManagement.h  | 29 +++----
 4 files changed, 125 insertions(+), 26 deletions(-)

-- 
2.42.0.windows.2



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Re: [edk2-devel] [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

[Li, Yi]

Hello, any comments about this patch series?

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Li, Yi
Sent: Wednesday, December 20, 2023 9:55 AM
To: devel@edk2.groups.io
Cc: Li, Yi1 <yi1.li@intel.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu@intel.com>; Xu, Wei6 <wei6.xu@intel.com>
Subject: [edk2-devel] [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

To avoid messy parsing of the Depex section of a Capsule, it would be a lot easier for everyone involved if we preceded the Capsule Depex Section with a length declaration. It provides simple bounds checking to avoid having to parse the op-codes, but in the case of a malformed depex being parsed, avoid other issues which can be messy.

Syntax
DECLARE_LENGTH <32-bit Length>
Description
Declares an 32-bit byte length of the entire dependency expression.
Behaviors and Restrictions
This opcode must be the first one in a dependency expression.

REF: UEFI spec 2.10 Table 23.4

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>

Yi Li (2):
  MdePkg: Add DECLARE_LENGTH opcode of dependency expression
  FmpDevicePkg: Add DECLARE_LENGTH opcode of dependency expression

 .../FmpDependencyLib/FmpDependencyLib.c       | 35 ++++++++
 .../PrivateInclude/FmpLastAttemptStatus.h     |  3 +
 .../EvaluateDependencyUnitTest.c              | 84 ++++++++++++++++---
 MdePkg/Include/Protocol/FirmwareManagement.h  | 29 +++----
 4 files changed, 125 insertions(+), 26 deletions(-)

--
2.42.0.windows.2








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Re: [edk2-devel] [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

[Xu, Wei6]

Reviewed-by: Wei6 Xu <wei6.xu@intel.com>

-----Original Message-----
From: Li, Yi1 <yi1.li@intel.com> 
Sent: Wednesday, December 20, 2023 9:55 AM
To: devel@edk2.groups.io
Cc: Li, Yi1 <yi1.li@intel.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu@intel.com>; Xu, Wei6 <wei6.xu@intel.com>
Subject: [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

To avoid messy parsing of the Depex section of a Capsule, it would be a lot easier for everyone involved if we preceded the Capsule Depex Section with a length declaration. It provides simple bounds checking to avoid having to parse the op-codes, but in the case of a malformed depex being parsed, avoid other issues which can be messy.

Syntax
DECLARE_LENGTH <32-bit Length>
Description
Declares an 32-bit byte length of the entire dependency expression.
Behaviors and Restrictions
This opcode must be the first one in a dependency expression.

REF: UEFI spec 2.10 Table 23.4

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Wei6 Xu <wei6.xu@intel.com>

Yi Li (2):
  MdePkg: Add DECLARE_LENGTH opcode of dependency expression
  FmpDevicePkg: Add DECLARE_LENGTH opcode of dependency expression

 .../FmpDependencyLib/FmpDependencyLib.c       | 35 ++++++++
 .../PrivateInclude/FmpLastAttemptStatus.h     |  3 +
 .../EvaluateDependencyUnitTest.c              | 84 ++++++++++++++++---
 MdePkg/Include/Protocol/FirmwareManagement.h  | 29 +++----
 4 files changed, 125 insertions(+), 26 deletions(-)

--
2.42.0.windows.2



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Re: [edk2-devel] [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

[Li, Yi]

Hi Liming,

I created a PR and CI passed, could you help merge it?
https://github.com/tianocore/edk2/pull/5210

Thanks,
Yi

-----Original Message-----
From: gaoliming <gaoliming@byosoft.com.cn> 
Sent: Wednesday, January 3, 2024 8:52 AM
To: Xu, Wei6 <wei6.xu@intel.com>; Li, Yi1 <yi1.li@intel.com>; devel@edk2.groups.io
Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Liu, Zhiguang <zhiguang.liu@intel.com>
Subject: 回复: [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency expression

Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn> for this patch set. 

> -----邮件原件-----
> 发件人: Xu, Wei6 <wei6.xu@intel.com>
> 发送时间: 2024年1月2日 9:43
> 收件人: Li, Yi1 <yi1.li@intel.com>; devel@edk2.groups.io
> 抄送: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming 
> <gaoliming@byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu@intel.com>
> 主题: RE: [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency 
> expression
> 
> Reviewed-by: Wei6 Xu <wei6.xu@intel.com>
> 
> -----Original Message-----
> From: Li, Yi1 <yi1.li@intel.com>
> Sent: Wednesday, December 20, 2023 9:55 AM
> To: devel@edk2.groups.io
> Cc: Li, Yi1 <yi1.li@intel.com>; Kinney, Michael D 
> <michael.d.kinney@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; 
> Liu, Zhiguang <zhiguang.liu@intel.com>; Xu, Wei6 <wei6.xu@intel.com>
> Subject: [PATCH V2 0/2] Add DECLARE_LENGTH opcode of dependency 
> expression
> 
> To avoid messy parsing of the Depex section of a Capsule, it would be 
> a
lot
> easier for everyone involved if we preceded the Capsule Depex Section 
> with
a
> length declaration. It provides simple bounds checking to avoid having 
> to parse the op-codes, but in the case of a malformed depex being 
> parsed,
avoid
> other issues which can be messy.
> 
> Syntax
> DECLARE_LENGTH <32-bit Length>
> Description
> Declares an 32-bit byte length of the entire dependency expression.
> Behaviors and Restrictions
> This opcode must be the first one in a dependency expression.
> 
> REF: UEFI spec 2.10 Table 23.4
> 
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> Cc: Wei6 Xu <wei6.xu@intel.com>
> 
> Yi Li (2):
>   MdePkg: Add DECLARE_LENGTH opcode of dependency expression
>   FmpDevicePkg: Add DECLARE_LENGTH opcode of dependency expression
> 
>  .../FmpDependencyLib/FmpDependencyLib.c       | 35 ++++++++
>  .../PrivateInclude/FmpLastAttemptStatus.h     |  3 +
>  .../EvaluateDependencyUnitTest.c              | 84
> ++++++++++++++++---
>  MdePkg/Include/Protocol/FirmwareManagement.h  | 29 +++----
>  4 files changed, 125 insertions(+), 26 deletions(-)
> 
> --
> 2.42.0.windows.2





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