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

["Li, Yi" <yi1.li@intel.com>]

Mantis: https://mantis.uefi.org/mantis/view.php?id=2025

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.

REF: UEFI spec 2.10 Table 23.4
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.

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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