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MdeModulePkg/CapsuleApp: Add Fmp->GetImage() support.

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We add Fmp->GetImage() support in CapsuleApp. So that user may call
Fmp->GetImage() in UEFI shell environment.
This is useful to do unit test for FMP which supports GetImage(),
or user wants to get current image, such as Microcode.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
This commit is contained in:
Jiewen Yao
2016-11-29 21:37:28 +08:00
parent 56e4a7d726
commit 1e09ec0946
3 changed files with 411 additions and 1 deletions
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141
MdeModulePkg/Application/CapsuleApp/AppSupport.c
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@@ -27,6 +27,9 @@
#include <Guid/FileInfo.h>
#include <Guid/Gpt.h>
#define IS_HYPHEN(a) ((a) == L'-')
#define IS_NULL(a) ((a) == L'\0')
#define MAX_ARG_NUM 11
UINTN Argc;
@@ -60,6 +63,144 @@ GetArg (
return EFI_SUCCESS;
}
/**
Converts a list of string to a specified buffer.
@param[out] Buf The output buffer that contains the string.
@param[in] BufferLength The length of the buffer
@param[in] Str The input string that contains the hex number
@retval EFI_SUCCESS The string was successfully converted to the buffer.
**/
EFI_STATUS
StrToBuf (
OUT UINT8 *Buf,
IN UINTN BufferLength,
IN CHAR16 *Str
)
{
UINTN Index;
UINTN StrLength;
UINT8 Digit;
UINT8 Byte;
Digit = 0;
//
// Two hex char make up one byte
//
StrLength = BufferLength * sizeof (CHAR16);
for(Index = 0; Index < StrLength; Index++, Str++) {
if ((*Str >= L'a') && (*Str <= L'f')) {
Digit = (UINT8) (*Str - L'a' + 0x0A);
} else if ((*Str >= L'A') && (*Str <= L'F')) {
Digit = (UINT8) (*Str - L'A' + 0x0A);
} else if ((*Str >= L'0') && (*Str <= L'9')) {
Digit = (UINT8) (*Str - L'0');
} else {
return EFI_INVALID_PARAMETER;
}
//
// For odd characters, write the upper nibble for each buffer byte,
// and for even characters, the lower nibble.
//
if ((Index & 1) == 0) {
Byte = (UINT8) (Digit << 4);
} else {
Byte = Buf[Index / 2];
Byte &= 0xF0;
Byte = (UINT8) (Byte | Digit);
}
Buf[Index / 2] = Byte;
}
return EFI_SUCCESS;
}
/**
Converts a string to GUID value.
Guid Format is xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
@param[in] Str The registry format GUID string that contains the GUID value.
@param[out] Guid A pointer to the converted GUID value.
@retval EFI_SUCCESS The GUID string was successfully converted to the GUID value.
@retval EFI_UNSUPPORTED The input string is not in registry format.
@return others Some error occurred when converting part of GUID value.
**/
EFI_STATUS
StrToGuid (
IN CHAR16 *Str,
OUT EFI_GUID *Guid
)
{
//
// Get the first UINT32 data
//
Guid->Data1 = (UINT32) StrHexToUint64 (Str);
while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
Str ++;
}
if (IS_HYPHEN (*Str)) {
Str++;
} else {
return EFI_UNSUPPORTED;
}
//
// Get the second UINT16 data
//
Guid->Data2 = (UINT16) StrHexToUint64 (Str);
while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
Str ++;
}
if (IS_HYPHEN (*Str)) {
Str++;
} else {
return EFI_UNSUPPORTED;
}
//
// Get the third UINT16 data
//
Guid->Data3 = (UINT16) StrHexToUint64 (Str);
while (!IS_HYPHEN (*Str) && !IS_NULL (*Str)) {
Str ++;
}
if (IS_HYPHEN (*Str)) {
Str++;
} else {
return EFI_UNSUPPORTED;
}
//
// Get the following 8 bytes data
//
StrToBuf (&Guid->Data4[0], 2, Str);
//
// Skip 2 byte hex chars
//
Str += 2 * 2;
if (IS_HYPHEN (*Str)) {
Str++;
} else {
return EFI_UNSUPPORTED;
}
StrToBuf (&Guid->Data4[2], 6, Str);
return EFI_SUCCESS;
}
/**
Return File System Volume containing this shell application.