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/** @file
Helper functions for parsing GuidedSectionTools.txt
Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <assert.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include "MemoryFile.h"
#include "CommonLib.h"
#include "EfiUtilityMsgs.h"
#include "ParseInf.h"
#include "ParseGuidedSectionTools.h"
#include "StringFuncs.h"
//
// Local types / structures
//
typedef struct _GUID_SEC_TOOL_ENTRY {
EFI_GUID Guid;
CHAR8* Name;
CHAR8* Path;
struct _GUID_SEC_TOOL_ENTRY *Next;
} GUID_SEC_TOOL_ENTRY;
//
// Function Implementation
//
EFI_HANDLE
ParseGuidedSectionToolsFile (
IN CHAR8 *InputFile
)
/*++
Routine Description:
This function parses the tools_def.txt file. It returns a
EFI_HANDLE object which can be used for the other library
functions and should be passed to FreeParsedGuidedSectionToolsHandle
to free resources when the tools_def.txt information is no
longer needed.
Arguments:
InputFile Path name of file to read
Returns:
NULL if error parsing
A non-NULL EFI_HANDLE otherwise
--*/
{
EFI_STATUS Status;
EFI_HANDLE MemoryFile;
EFI_HANDLE ParsedGuidedSectionTools;
Status = GetMemoryFile (InputFile, &MemoryFile);
if (EFI_ERROR (Status)) {
return NULL;
}
ParsedGuidedSectionTools = ParseGuidedSectionToolsMemoryFile (MemoryFile);
FreeMemoryFile (MemoryFile);
return ParsedGuidedSectionTools;
}
EFI_HANDLE
ParseGuidedSectionToolsMemoryFile (
IN EFI_HANDLE InputFile
)
/*++
Routine Description:
This function parses the tools_def.txt file. It returns a
EFI_HANDLE object which can be used for the other library
functions and should be passed to FreeParsedGuidedSectionToolsHandle
to free resources when the tools_def.txt information is no
longer needed.
Arguments:
InputFile Memory file image.
Returns:
NULL if error or EOF
InputBuffer otherwise
--*/
{
EFI_STATUS Status;
CHAR8 *NextLine;
STRING_LIST *Tool;
EFI_GUID Guid;
GUID_SEC_TOOL_ENTRY *FirstGuidTool;
GUID_SEC_TOOL_ENTRY *LastGuidTool;
GUID_SEC_TOOL_ENTRY *NewGuidTool;
FirstGuidTool = NULL;
LastGuidTool = NULL;
while (TRUE) {
NextLine = ReadMemoryFileLine (InputFile);
if (NextLine == NULL) {
break;
}
Status = StripInfDscStringInPlace (NextLine);
if (EFI_ERROR (Status)) {
free (NextLine);
break;
}
if (NextLine[0] == '\0') {
free (NextLine);
continue;
}
Tool = SplitStringByWhitespace (NextLine);
if ((Tool != NULL) &&
(Tool->Count == 3)
) {
Status = StringToGuid (Tool->Strings[0], &Guid);
if (!EFI_ERROR (Status)) {
NewGuidTool = malloc (sizeof (GUID_SEC_TOOL_ENTRY));
if (NewGuidTool != NULL) {
memcpy (&(NewGuidTool->Guid), &Guid, sizeof (Guid));
NewGuidTool->Name = CloneString(Tool->Strings[1]);
NewGuidTool->Path = CloneString(Tool->Strings[2]);
NewGuidTool->Next = NULL;
if (FirstGuidTool == NULL) {
FirstGuidTool = NewGuidTool;
} else {
LastGuidTool->Next = NewGuidTool;
}
LastGuidTool = NewGuidTool;
}
}
}
if (Tool != NULL) {
FreeStringList (Tool);
}
free (NextLine);
}
return FirstGuidTool;
}
CHAR8*
LookupGuidedSectionToolPath (
IN EFI_HANDLE ParsedGuidedSectionToolsHandle,
IN EFI_GUID *SectionGuid
)
/*++
Routine Description:
This function looks up the appropriate tool to use for extracting
a GUID defined FV section.
Arguments:
ParsedGuidedSectionToolsHandle A parsed GUID section tools handle.
SectionGuid The GUID for the section.
Returns:
NULL - if no tool is found or there is another error
Non-NULL - The tool to use to access the section contents. (The caller
must free the memory associated with this string.)
--*/
{
GUID_SEC_TOOL_ENTRY *GuidTool;
GuidTool = (GUID_SEC_TOOL_ENTRY*)ParsedGuidedSectionToolsHandle;
if (GuidTool == NULL) {
return NULL;
}
for ( ; GuidTool != NULL; GuidTool = GuidTool->Next) {
if (CompareGuid (&(GuidTool->Guid), SectionGuid) == 0) {
return CloneString (GuidTool->Path);
}
}
return NULL;
}
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