mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-23 11:35:19 +01:00
318 lines
11 KiB
C
318 lines
11 KiB
C
/** @file
|
|
Main file for Parse shell level 2 function.
|
|
|
|
(C) Copyright 2013-2015 Hewlett-Packard Development Company, L.P.<BR>
|
|
Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials
|
|
are licensed and made available under the terms and conditions of the BSD License
|
|
which accompanies this distribution. The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.php
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
**/
|
|
|
|
#include "UefiShellLevel2CommandsLib.h"
|
|
|
|
/**
|
|
Check if data is coming from StdIn output.
|
|
|
|
@param[in] None
|
|
|
|
@retval TRUE StdIn stream data available to parse
|
|
@retval FALSE StdIn stream data is not available to parse.
|
|
**/
|
|
BOOLEAN
|
|
IsStdInDataAvailable (
|
|
VOID
|
|
)
|
|
{
|
|
SHELL_FILE_HANDLE FileHandle;
|
|
EFI_STATUS Status;
|
|
CHAR16 CharBuffer;
|
|
UINTN CharSize;
|
|
UINT64 OriginalFilePosition;
|
|
|
|
Status = EFI_SUCCESS;
|
|
FileHandle = NULL;
|
|
OriginalFilePosition = 0;
|
|
|
|
if (ShellOpenFileByName (L">i", &FileHandle, EFI_FILE_MODE_READ, 0) == EFI_SUCCESS) {
|
|
CharSize = sizeof(CHAR16);
|
|
gEfiShellProtocol->GetFilePosition (FileHandle, &OriginalFilePosition);
|
|
Status = gEfiShellProtocol->ReadFile (FileHandle, &CharSize, &CharBuffer);
|
|
if (EFI_ERROR (Status) || (CharSize != sizeof(CHAR16))) {
|
|
return FALSE;
|
|
}
|
|
gEfiShellProtocol->SetFilePosition(FileHandle, OriginalFilePosition);
|
|
}
|
|
|
|
if (FileHandle == NULL) {
|
|
return FALSE;
|
|
} else {
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
Handle stings for SFO Output with escape character ^ in a string
|
|
1. Quotation marks in the string must be escaped by using a ^ character (i.e. ^").
|
|
2. The ^ character may be inserted using ^^.
|
|
|
|
@param[in] String The Unicode NULL-terminated string.
|
|
|
|
@retval NewString The new string handled for SFO.
|
|
**/
|
|
EFI_STRING
|
|
HandleStringWithEscapeCharForParse (
|
|
IN CHAR16 *String
|
|
)
|
|
{
|
|
EFI_STRING NewStr;
|
|
EFI_STRING StrWalker;
|
|
EFI_STRING ReturnStr;
|
|
|
|
if (String == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
//
|
|
// start to parse the input string.
|
|
//
|
|
NewStr = AllocateZeroPool (StrSize (String));
|
|
if (NewStr == NULL) {
|
|
return NULL;
|
|
}
|
|
ReturnStr = NewStr;
|
|
StrWalker = String;
|
|
while (*StrWalker != CHAR_NULL) {
|
|
if (*StrWalker == L'^' && (*(StrWalker + 1) == L'^' || *(StrWalker + 1) == L'"')) {
|
|
*NewStr = *(StrWalker + 1);
|
|
StrWalker++;
|
|
} else {
|
|
*NewStr = *StrWalker;
|
|
}
|
|
StrWalker++;
|
|
NewStr++;
|
|
}
|
|
|
|
return ReturnStr;
|
|
}
|
|
|
|
|
|
/**
|
|
Do the actual parsing of the file. the file should be SFO output from a
|
|
shell command or a similar format.
|
|
|
|
@param[in] FileName The filename to open.
|
|
@param[in] TableName The name of the table to find.
|
|
@param[in] ColumnIndex The column number to get.
|
|
@param[in] TableNameInstance Which instance of the table to get (row).
|
|
@param[in] ShellCommandInstance Which instance of the command to get.
|
|
@param[in] StreamingUnicode Indicates Input file is StdIn Unicode streaming data or not
|
|
|
|
@retval SHELL_NOT_FOUND The requested instance was not found.
|
|
@retval SHELL_SUCCESS The operation was successful.
|
|
**/
|
|
SHELL_STATUS
|
|
PerformParsing(
|
|
IN CONST CHAR16 *FileName,
|
|
IN CONST CHAR16 *TableName,
|
|
IN CONST UINTN ColumnIndex,
|
|
IN CONST UINTN TableNameInstance,
|
|
IN CONST UINTN ShellCommandInstance,
|
|
IN BOOLEAN StreamingUnicode
|
|
)
|
|
{
|
|
SHELL_FILE_HANDLE FileHandle;
|
|
EFI_STATUS Status;
|
|
BOOLEAN Ascii;
|
|
UINTN LoopVariable;
|
|
UINTN ColumnLoop;
|
|
CHAR16 *TempLine;
|
|
CHAR16 *ColumnPointer;
|
|
SHELL_STATUS ShellStatus;
|
|
CHAR16 *TempSpot;
|
|
CHAR16 *SfoString;
|
|
|
|
ASSERT(FileName != NULL);
|
|
ASSERT(TableName != NULL);
|
|
|
|
ShellStatus = SHELL_SUCCESS;
|
|
|
|
Status = ShellOpenFileByName(FileName, &FileHandle, EFI_FILE_MODE_READ, 0);
|
|
if (EFI_ERROR(Status)) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellLevel2HiiHandle, L"parse", FileName);
|
|
ShellStatus = SHELL_NOT_FOUND;
|
|
} else if (!EFI_ERROR (FileHandleIsDirectory (FileHandle))) {
|
|
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_NOT_FILE), gShellLevel2HiiHandle, L"parse", FileName);
|
|
ShellStatus = SHELL_NOT_FOUND;
|
|
} else {
|
|
for (LoopVariable = 0 ; LoopVariable < ShellCommandInstance && !ShellFileHandleEof(FileHandle);) {
|
|
TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii);
|
|
|
|
if ((TempLine == NULL) || (*TempLine == CHAR_NULL && StreamingUnicode)) {
|
|
break;
|
|
}
|
|
|
|
//
|
|
// Search for "ShellCommand," in the file to start the SFO table
|
|
// for a given ShellCommand. The UEFI Shell spec does not specify
|
|
// a space after the comma.
|
|
//
|
|
if (StrStr (TempLine, L"ShellCommand,") == TempLine) {
|
|
LoopVariable++;
|
|
}
|
|
SHELL_FREE_NON_NULL(TempLine);
|
|
}
|
|
if (LoopVariable == ShellCommandInstance) {
|
|
LoopVariable = 0;
|
|
while(1) {
|
|
TempLine = ShellFileHandleReturnLine (FileHandle, &Ascii);
|
|
if (TempLine == NULL
|
|
|| *TempLine == CHAR_NULL
|
|
|| StrStr (TempLine, L"ShellCommand,") == TempLine) {
|
|
SHELL_FREE_NON_NULL(TempLine);
|
|
break;
|
|
}
|
|
if (StrStr (TempLine, TableName) == TempLine) {
|
|
LoopVariable++;
|
|
if (LoopVariable == TableNameInstance
|
|
|| (TableNameInstance == (UINTN)-1)) {
|
|
for (ColumnLoop = 1, ColumnPointer = TempLine; ColumnLoop < ColumnIndex && ColumnPointer != NULL && *ColumnPointer != CHAR_NULL; ColumnLoop++) {
|
|
ColumnPointer = StrStr (ColumnPointer, L",\"");
|
|
if (ColumnPointer != NULL && *ColumnPointer != CHAR_NULL){
|
|
ColumnPointer++;
|
|
}
|
|
}
|
|
if (ColumnLoop == ColumnIndex) {
|
|
if (ColumnPointer == NULL) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellLevel2HiiHandle, L"parse", L"Column Index");
|
|
ShellStatus = SHELL_INVALID_PARAMETER;
|
|
} else {
|
|
TempSpot = StrStr (ColumnPointer, L",\"");
|
|
if (TempSpot != NULL) {
|
|
*TempSpot = CHAR_NULL;
|
|
}
|
|
while (ColumnPointer != NULL && *ColumnPointer != CHAR_NULL && ColumnPointer[0] == L' '){
|
|
ColumnPointer++;
|
|
}
|
|
if (ColumnPointer != NULL && *ColumnPointer != CHAR_NULL && ColumnPointer[0] == L'\"'){
|
|
ColumnPointer++;
|
|
}
|
|
if (ColumnPointer != NULL && *ColumnPointer != CHAR_NULL && ColumnPointer[StrLen (ColumnPointer) - 1] == L'\"'){
|
|
ColumnPointer[StrLen (ColumnPointer) - 1] = CHAR_NULL;
|
|
}
|
|
SfoString = HandleStringWithEscapeCharForParse (ColumnPointer);
|
|
if (SfoString != NULL) {
|
|
ShellPrintEx (-1, -1, L"%s\r\n", SfoString);
|
|
SHELL_FREE_NON_NULL (SfoString);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
SHELL_FREE_NON_NULL(TempLine);
|
|
}
|
|
}
|
|
}
|
|
return (ShellStatus);
|
|
}
|
|
|
|
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
|
|
{L"-i", TypeValue},
|
|
{L"-s", TypeValue},
|
|
{NULL, TypeMax}
|
|
};
|
|
|
|
/**
|
|
Function for 'parse' command.
|
|
|
|
@param[in] ImageHandle Handle to the Image (NULL if Internal).
|
|
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
|
|
**/
|
|
SHELL_STATUS
|
|
EFIAPI
|
|
ShellCommandRunParse (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
LIST_ENTRY *Package;
|
|
CHAR16 *ProblemParam;
|
|
CONST CHAR16 *FileName;
|
|
CONST CHAR16 *TableName;
|
|
CONST CHAR16 *ColumnString;
|
|
SHELL_STATUS ShellStatus;
|
|
UINTN ShellCommandInstance;
|
|
UINTN TableNameInstance;
|
|
BOOLEAN StreamingUnicode;
|
|
|
|
ShellStatus = SHELL_SUCCESS;
|
|
ProblemParam = NULL;
|
|
StreamingUnicode = FALSE;
|
|
|
|
//
|
|
// initialize the shell lib (we must be in non-auto-init...)
|
|
//
|
|
Status = ShellInitialize();
|
|
ASSERT_EFI_ERROR(Status);
|
|
|
|
//
|
|
// parse the command line
|
|
//
|
|
Status = ShellCommandLineParseEx (ParamList, &Package, &ProblemParam, TRUE, FALSE);
|
|
if (EFI_ERROR(Status)) {
|
|
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"parse", ProblemParam);
|
|
FreePool(ProblemParam);
|
|
ShellStatus = SHELL_INVALID_PARAMETER;
|
|
} else {
|
|
ASSERT(FALSE);
|
|
}
|
|
} else {
|
|
StreamingUnicode = IsStdInDataAvailable ();
|
|
if ((!StreamingUnicode && (ShellCommandLineGetCount(Package) < 4)) ||
|
|
(ShellCommandLineGetCount(Package) < 3)) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel2HiiHandle, L"parse");
|
|
ShellStatus = SHELL_INVALID_PARAMETER;
|
|
} else if ((StreamingUnicode && (ShellCommandLineGetCount(Package) > 3)) ||
|
|
(ShellCommandLineGetCount(Package) > 4)) {
|
|
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"parse");
|
|
ShellStatus = SHELL_INVALID_PARAMETER;
|
|
} else {
|
|
if (StreamingUnicode) {
|
|
FileName = L">i";
|
|
TableName = ShellCommandLineGetRawValue(Package, 1);
|
|
ColumnString = ShellCommandLineGetRawValue(Package, 2);
|
|
} else {
|
|
FileName = ShellCommandLineGetRawValue(Package, 1);
|
|
TableName = ShellCommandLineGetRawValue(Package, 2);
|
|
ColumnString = ShellCommandLineGetRawValue(Package, 3);
|
|
}
|
|
if (ShellCommandLineGetValue(Package, L"-i") == NULL) {
|
|
TableNameInstance = (UINTN)-1;
|
|
} else {
|
|
TableNameInstance = ShellStrToUintn(ShellCommandLineGetValue(Package, L"-i"));
|
|
}
|
|
if (ShellCommandLineGetValue(Package, L"-s") == NULL) {
|
|
ShellCommandInstance = 1;
|
|
} else {
|
|
ShellCommandInstance = ShellStrToUintn(ShellCommandLineGetValue(Package, L"-s"));
|
|
}
|
|
|
|
ShellStatus = PerformParsing(FileName, TableName, ShellStrToUintn(ColumnString), TableNameInstance, ShellCommandInstance, StreamingUnicode);
|
|
}
|
|
}
|
|
|
|
//
|
|
// free the command line package
|
|
//
|
|
ShellCommandLineFreeVarList (Package);
|
|
|
|
return (ShellStatus);
|
|
}
|
|
|