From 00bf6890a9c63692215d690b3e00454dbe21b71c Mon Sep 17 00:00:00 2001 From: Yi Li Date: Tue, 19 Dec 2023 11:11:43 +0800 Subject: MdePkg: 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. REF: UEFI spec 2.10 Table 23.4 Signed-off-by: Yi Li Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Reviewed-by: Wei6 Xu Reviewed-by: Liming Gao --- MdePkg/Include/Protocol/FirmwareManagement.h | 29 ++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) (limited to 'MdePkg') diff --git a/MdePkg/Include/Protocol/FirmwareManagement.h b/MdePkg/Include/Protocol/FirmwareManagement.h index f37067df34..e535bb697d 100644 --- a/MdePkg/Include/Protocol/FirmwareManagement.h +++ b/MdePkg/Include/Protocol/FirmwareManagement.h @@ -30,20 +30,21 @@ typedef struct _EFI_FIRMWARE_MANAGEMENT_PROTOCOL EFI_FIRMWARE_MANAGEMENT_PROTOCO /// /// Dependency Expression Opcode /// -#define EFI_FMP_DEP_PUSH_GUID 0x00 -#define EFI_FMP_DEP_PUSH_VERSION 0x01 -#define EFI_FMP_DEP_VERSION_STR 0x02 -#define EFI_FMP_DEP_AND 0x03 -#define EFI_FMP_DEP_OR 0x04 -#define EFI_FMP_DEP_NOT 0x05 -#define EFI_FMP_DEP_TRUE 0x06 -#define EFI_FMP_DEP_FALSE 0x07 -#define EFI_FMP_DEP_EQ 0x08 -#define EFI_FMP_DEP_GT 0x09 -#define EFI_FMP_DEP_GTE 0x0A -#define EFI_FMP_DEP_LT 0x0B -#define EFI_FMP_DEP_LTE 0x0C -#define EFI_FMP_DEP_END 0x0D +#define EFI_FMP_DEP_PUSH_GUID 0x00 +#define EFI_FMP_DEP_PUSH_VERSION 0x01 +#define EFI_FMP_DEP_VERSION_STR 0x02 +#define EFI_FMP_DEP_AND 0x03 +#define EFI_FMP_DEP_OR 0x04 +#define EFI_FMP_DEP_NOT 0x05 +#define EFI_FMP_DEP_TRUE 0x06 +#define EFI_FMP_DEP_FALSE 0x07 +#define EFI_FMP_DEP_EQ 0x08 +#define EFI_FMP_DEP_GT 0x09 +#define EFI_FMP_DEP_GTE 0x0A +#define EFI_FMP_DEP_LT 0x0B +#define EFI_FMP_DEP_LTE 0x0C +#define EFI_FMP_DEP_END 0x0D +#define EFI_FMP_DEP_DECLARE_LENGTH 0x0E /// /// Image Attribute - Dependency -- cgit v1.2.3