diff options
Diffstat (limited to 'ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c')
| -rw-r--r-- | ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c | 980 |
1 files changed, 490 insertions, 490 deletions
diff --git a/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c b/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c index 61788d1993..9fc8f041dd 100644 --- a/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c +++ b/ShellPkg/Library/UefiShellDebug1CommandsLib/SetVar.c @@ -1,490 +1,490 @@ -/** @file
- Main file for SetVar shell Debug1 function.
-
- (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
- Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "UefiShellDebug1CommandsLib.h"
-
-STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
- { L"-guid", TypeValue },
- { L"-bs", TypeFlag },
- { L"-rt", TypeFlag },
- { L"-nv", TypeFlag },
- { NULL, TypeMax }
-};
-
-typedef enum {
- DataTypeHexNumber = 0,
- DataTypeHexArray = 1,
- DataTypeAscii = 2,
- DataTypeUnicode = 3,
- DataTypeDevicePath = 4,
- DataTypeUnKnow = 5
-} DATA_TYPE;
-
-typedef union {
- UINT8 HexNumber8;
- UINT16 HexNumber16;
- UINT32 HexNumber32;
- UINT64 HexNumber64;
-} HEX_NUMBER;
-
-/**
- Check if the input is a (potentially empty) string of hexadecimal nibbles.
-
- @param[in] String The CHAR16 string to check.
-
- @retval FALSE A character has been found in String for which
- ShellIsHexaDecimalDigitCharacter() returned FALSE.
-
- @retval TRUE Otherwise. (Note that this covers the case when String is
- empty.)
-**/
-BOOLEAN
-IsStringOfHexNibbles (
- IN CONST CHAR16 *String
- )
-{
- CONST CHAR16 *Pos;
-
- for (Pos = String; *Pos != L'\0'; ++Pos) {
- if (!ShellIsHexaDecimalDigitCharacter (*Pos)) {
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-/**
- Function to check the TYPE of Data.
-
- @param[in] Data The Data to be check.
-
- @retval DATA_TYPE The TYPE of Data.
-**/
-DATA_TYPE
-TestDataType (
- IN CONST CHAR16 *Data
- )
-{
- if ((Data[0] == L'0') && ((Data[1] == L'x') || (Data[1] == L'X'))) {
- if (IsStringOfHexNibbles (Data+2) && (StrLen (Data + 2) <= 16)) {
- return DataTypeHexNumber;
- } else {
- return DataTypeUnKnow;
- }
- } else if (Data[0] == L'H') {
- if (IsStringOfHexNibbles (Data + 1) && (StrLen (Data + 1) % 2 == 0)) {
- return DataTypeHexArray;
- } else {
- return DataTypeUnKnow;
- }
- } else if (Data[0] == L'S') {
- return DataTypeAscii;
- } else if (Data[0] == L'L') {
- return DataTypeUnicode;
- } else if ((Data[0] == L'P') || (StrnCmp (Data, L"--", 2) == 0)) {
- return DataTypeDevicePath;
- }
-
- if (IsStringOfHexNibbles (Data) && (StrLen (Data) % 2 == 0)) {
- return DataTypeHexArray;
- }
-
- return DataTypeAscii;
-}
-
-/**
- Function to parse the Data by the type of Data, and save in the Buffer.
-
- @param[in] Data A pointer to a buffer to be parsed.
- @param[out] Buffer A pointer to a buffer to hold the return data.
- @param[in,out] BufferSize On input, indicates the size of Buffer in bytes.
- On output,indicates the size of data return in Buffer.
- Or the size in bytes of the buffer needed to obtain.
-
- @retval EFI_INVALID_PARAMETER The Buffer or BufferSize is NULL.
- @retval EFI_BUFFER_TOO_SMALL The Buffer is too small to hold the data.
- @retval EFI_OUT_OF_RESOURCES A memory allcation failed.
- @retval EFI_SUCCESS The Data parsed successful and save in the Buffer.
-**/
-EFI_STATUS
-ParseParameterData (
- IN CONST CHAR16 *Data,
- OUT VOID *Buffer,
- IN OUT UINTN *BufferSize
- )
-{
- UINT64 HexNumber;
- UINTN HexNumberLen;
- UINTN Size;
- CHAR8 *AsciiBuffer;
- DATA_TYPE DataType;
- EFI_DEVICE_PATH_PROTOCOL *DevPath;
- EFI_STATUS Status;
-
- HexNumber = 0;
- HexNumberLen = 0;
- Size = 0;
- AsciiBuffer = NULL;
- DevPath = NULL;
- Status = EFI_SUCCESS;
-
- if ((Data == NULL) || (BufferSize == NULL)) {
- return EFI_INVALID_PARAMETER;
- }
-
- DataType = TestDataType (Data);
- if (DataType == DataTypeHexNumber) {
- //
- // hex number
- //
- StrHexToUint64S (Data + 2, NULL, &HexNumber);
- HexNumberLen = StrLen (Data + 2);
- if ((HexNumberLen >= 1) && (HexNumberLen <= 2)) {
- Size = 1;
- } else if ((HexNumberLen >= 3) && (HexNumberLen <= 4)) {
- Size = 2;
- } else if ((HexNumberLen >= 5) && (HexNumberLen <= 8)) {
- Size = 4;
- } else if ((HexNumberLen >= 9) && (HexNumberLen <= 16)) {
- Size = 8;
- }
-
- if ((Buffer != NULL) && (*BufferSize >= Size)) {
- CopyMem (Buffer, (VOID *)&HexNumber, Size);
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *BufferSize = Size;
- } else if (DataType == DataTypeHexArray) {
- //
- // hex array
- //
- if (*Data == L'H') {
- Data = Data + 1;
- }
-
- Size = StrLen (Data) / 2;
- if ((Buffer != NULL) && (*BufferSize >= Size)) {
- StrHexToBytes (Data, StrLen (Data), (UINT8 *)Buffer, Size);
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *BufferSize = Size;
- } else if (DataType == DataTypeAscii) {
- //
- // ascii text
- //
- if (*Data == L'S') {
- Data = Data + 1;
- }
-
- AsciiBuffer = AllocateZeroPool (StrSize (Data) / 2);
- if (AsciiBuffer == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- } else {
- AsciiSPrint (AsciiBuffer, StrSize (Data) / 2, "%s", (CHAR8 *)Data);
-
- Size = StrSize (Data) / 2 - 1;
- if ((Buffer != NULL) && (*BufferSize >= Size)) {
- CopyMem (Buffer, AsciiBuffer, Size);
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *BufferSize = Size;
- }
-
- SHELL_FREE_NON_NULL (AsciiBuffer);
- } else if (DataType == DataTypeUnicode) {
- //
- // unicode text
- //
- if (*Data == L'L') {
- Data = Data + 1;
- }
-
- Size = StrSize (Data) - sizeof (CHAR16);
- if ((Buffer != NULL) && (*BufferSize >= Size)) {
- CopyMem (Buffer, Data, Size);
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *BufferSize = Size;
- } else if (DataType == DataTypeDevicePath) {
- if (*Data == L'P') {
- Data = Data + 1;
- } else if (StrnCmp (Data, L"--", 2) == 0) {
- Data = Data + 2;
- }
-
- DevPath = ConvertTextToDevicePath (Data);
- if (DevPath == NULL) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar");
- Status = EFI_INVALID_PARAMETER;
- } else {
- Size = GetDevicePathSize (DevPath);
- if ((Buffer != NULL) && (*BufferSize >= Size)) {
- CopyMem (Buffer, DevPath, Size);
- } else {
- Status = EFI_BUFFER_TOO_SMALL;
- }
-
- *BufferSize = Size;
- }
-
- SHELL_FREE_NON_NULL (DevPath);
- } else {
- Status = EFI_INVALID_PARAMETER;
- }
-
- return Status;
-}
-
-/**
- Function to get each data from parameters.
-
- @param[in] Package The package of checked values.
- @param[out] Buffer A pointer to a buffer to hold the return data.
- @param[out] BufferSize Indicates the size of data in bytes return in Buffer.
-
- @retval EFI_INVALID_PARAMETER Buffer or BufferSize is NULL.
- @retval EFI_OUT_OF_RESOURCES A memory allcation failed.
- @retval EFI_SUCCESS Get each parameter data was successful.
-**/
-EFI_STATUS
-GetVariableDataFromParameter (
- IN CONST LIST_ENTRY *Package,
- OUT UINT8 **Buffer,
- OUT UINTN *BufferSize
- )
-{
- CONST CHAR16 *TempData;
- UINTN Index;
- UINTN TotalSize;
- UINTN Size;
- UINT8 *BufferWalker;
- EFI_STATUS Status;
-
- TotalSize = 0;
- Size = 0;
- Status = EFI_SUCCESS;
-
- if ((BufferSize == NULL) || (Buffer == NULL) || (ShellCommandLineGetCount (Package) < 3)) {
- return EFI_INVALID_PARAMETER;
- }
-
- for (Index = 2; Index < ShellCommandLineGetCount (Package); Index++) {
- TempData = ShellCommandLineGetRawValue (Package, Index);
- ASSERT (TempData != NULL);
-
- if (TempData[0] != L'=') {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", TempData);
- return EFI_INVALID_PARAMETER;
- }
-
- TempData = TempData + 1;
- Size = 0;
- Status = ParseParameterData (TempData, NULL, &Size);
- if (EFI_ERROR (Status)) {
- if (Status == EFI_BUFFER_TOO_SMALL) {
- //
- // We expect return EFI_BUFFER_TOO_SMALL when pass 'NULL' as second parameter to the function ParseParameterData.
- //
- TotalSize += Size;
- } else {
- if (Status == EFI_INVALID_PARAMETER) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", TempData);
- } else if (Status == EFI_NOT_FOUND) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar");
- }
-
- return Status;
- }
- }
- }
-
- *BufferSize = TotalSize;
- *Buffer = AllocateZeroPool (TotalSize);
-
- if (*Buffer == NULL) {
- Status = EFI_OUT_OF_RESOURCES;
- } else {
- BufferWalker = *Buffer;
- for (Index = 2; Index < ShellCommandLineGetCount (Package); Index++) {
- TempData = ShellCommandLineGetRawValue (Package, Index);
- TempData = TempData + 1;
-
- Size = TotalSize;
- Status = ParseParameterData (TempData, (VOID *)BufferWalker, &Size);
- if (!EFI_ERROR (Status)) {
- BufferWalker = BufferWalker + Size;
- TotalSize = TotalSize - Size;
- } else {
- return Status;
- }
- }
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Function for 'setvar' 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
-ShellCommandRunSetVar (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
- RETURN_STATUS RStatus;
- LIST_ENTRY *Package;
- CHAR16 *ProblemParam;
- SHELL_STATUS ShellStatus;
- CONST CHAR16 *VariableName;
- EFI_GUID Guid;
- CONST CHAR16 *StringGuid;
- UINT32 Attributes;
- VOID *Buffer;
- UINTN Size;
- UINTN LoopVar;
-
- ShellStatus = SHELL_SUCCESS;
- Status = EFI_SUCCESS;
- Buffer = NULL;
- Size = 0;
- Attributes = 0;
-
- //
- // initialize the shell lib (we must be in non-auto-init...)
- //
- Status = ShellInitialize ();
- ASSERT_EFI_ERROR (Status);
-
- Status = CommandInit ();
- ASSERT_EFI_ERROR (Status);
-
- //
- // parse the command line
- //
- Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
- if (EFI_ERROR (Status)) {
- if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"setvar", ProblemParam);
- FreePool (ProblemParam);
- ShellStatus = SHELL_INVALID_PARAMETER;
- } else {
- ASSERT (FALSE);
- }
- } else if (ShellCommandLineCheckDuplicate (Package, &ProblemParam) != EFI_SUCCESS) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_DUPLICATE), gShellDebug1HiiHandle, L"setvar", ProblemParam);
- FreePool (ProblemParam);
- ShellStatus = SHELL_INVALID_PARAMETER;
- } else {
- if (ShellCommandLineGetCount (Package) < 2) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"setvar");
- ShellStatus = SHELL_INVALID_PARAMETER;
- } else {
- VariableName = ShellCommandLineGetRawValue (Package, 1);
- if (!ShellCommandLineGetFlag (Package, L"-guid")) {
- CopyGuid (&Guid, &gEfiGlobalVariableGuid);
- } else {
- StringGuid = ShellCommandLineGetValue (Package, L"-guid");
- RStatus = StrToGuid (StringGuid, &Guid);
- if (RETURN_ERROR (RStatus) || (StringGuid[GUID_STRING_LENGTH] != L'\0')) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", StringGuid);
- ShellStatus = SHELL_INVALID_PARAMETER;
- }
- }
-
- if (ShellCommandLineGetCount (Package) == 2) {
- //
- // Display
- //
- Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- Buffer = AllocateZeroPool (Size);
- Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);
- }
-
- if (!EFI_ERROR (Status) && (Buffer != NULL)) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_PRINT), gShellDebug1HiiHandle, &Guid, VariableName, Size);
- for (LoopVar = 0; LoopVar < Size; LoopVar++) {
- ShellPrintEx (-1, -1, L"%02x ", ((UINT8 *)Buffer)[LoopVar]);
- }
-
- ShellPrintEx (-1, -1, L"\r\n");
- } else {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_GET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName);
- ShellStatus = SHELL_ACCESS_DENIED;
- }
- } else {
- //
- // Create, Delete or Modify.
- //
- Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);
- if (Status == EFI_BUFFER_TOO_SMALL) {
- Buffer = AllocateZeroPool (Size);
- Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);
- }
-
- if (EFI_ERROR (Status) || (Buffer == NULL)) {
- //
- // Creating a new variable. determine attributes from command line.
- //
- Attributes = 0;
- if (ShellCommandLineGetFlag (Package, L"-bs")) {
- Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
- }
-
- if (ShellCommandLineGetFlag (Package, L"-rt")) {
- Attributes |= EFI_VARIABLE_RUNTIME_ACCESS |
- EFI_VARIABLE_BOOTSERVICE_ACCESS;
- }
-
- if (ShellCommandLineGetFlag (Package, L"-nv")) {
- Attributes |= EFI_VARIABLE_NON_VOLATILE;
- }
- }
-
- SHELL_FREE_NON_NULL (Buffer);
-
- Size = 0;
- Status = GetVariableDataFromParameter (Package, (UINT8 **)&Buffer, &Size);
- if (!EFI_ERROR (Status)) {
- Status = gRT->SetVariable ((CHAR16 *)VariableName, &Guid, Attributes, Size, Buffer);
- }
-
- if (EFI_ERROR (Status)) {
- ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName);
- ShellStatus = SHELL_ACCESS_DENIED;
- } else {
- ASSERT (ShellStatus == SHELL_SUCCESS);
- }
- }
- }
-
- ShellCommandLineFreeVarList (Package);
- }
-
- if (Buffer != NULL) {
- FreePool (Buffer);
- }
-
- return (ShellStatus);
-}
+/** @file + Main file for SetVar shell Debug1 function. + + (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR> + Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "UefiShellDebug1CommandsLib.h" + +STATIC CONST SHELL_PARAM_ITEM ParamList[] = { + { L"-guid", TypeValue }, + { L"-bs", TypeFlag }, + { L"-rt", TypeFlag }, + { L"-nv", TypeFlag }, + { NULL, TypeMax } +}; + +typedef enum { + DataTypeHexNumber = 0, + DataTypeHexArray = 1, + DataTypeAscii = 2, + DataTypeUnicode = 3, + DataTypeDevicePath = 4, + DataTypeUnKnow = 5 +} DATA_TYPE; + +typedef union { + UINT8 HexNumber8; + UINT16 HexNumber16; + UINT32 HexNumber32; + UINT64 HexNumber64; +} HEX_NUMBER; + +/** + Check if the input is a (potentially empty) string of hexadecimal nibbles. + + @param[in] String The CHAR16 string to check. + + @retval FALSE A character has been found in String for which + ShellIsHexaDecimalDigitCharacter() returned FALSE. + + @retval TRUE Otherwise. (Note that this covers the case when String is + empty.) +**/ +BOOLEAN +IsStringOfHexNibbles ( + IN CONST CHAR16 *String + ) +{ + CONST CHAR16 *Pos; + + for (Pos = String; *Pos != L'\0'; ++Pos) { + if (!ShellIsHexaDecimalDigitCharacter (*Pos)) { + return FALSE; + } + } + + return TRUE; +} + +/** + Function to check the TYPE of Data. + + @param[in] Data The Data to be check. + + @retval DATA_TYPE The TYPE of Data. +**/ +DATA_TYPE +TestDataType ( + IN CONST CHAR16 *Data + ) +{ + if ((Data[0] == L'0') && ((Data[1] == L'x') || (Data[1] == L'X'))) { + if (IsStringOfHexNibbles (Data+2) && (StrLen (Data + 2) <= 16)) { + return DataTypeHexNumber; + } else { + return DataTypeUnKnow; + } + } else if (Data[0] == L'H') { + if (IsStringOfHexNibbles (Data + 1) && (StrLen (Data + 1) % 2 == 0)) { + return DataTypeHexArray; + } else { + return DataTypeUnKnow; + } + } else if (Data[0] == L'S') { + return DataTypeAscii; + } else if (Data[0] == L'L') { + return DataTypeUnicode; + } else if ((Data[0] == L'P') || (StrnCmp (Data, L"--", 2) == 0)) { + return DataTypeDevicePath; + } + + if (IsStringOfHexNibbles (Data) && (StrLen (Data) % 2 == 0)) { + return DataTypeHexArray; + } + + return DataTypeAscii; +} + +/** + Function to parse the Data by the type of Data, and save in the Buffer. + + @param[in] Data A pointer to a buffer to be parsed. + @param[out] Buffer A pointer to a buffer to hold the return data. + @param[in,out] BufferSize On input, indicates the size of Buffer in bytes. + On output,indicates the size of data return in Buffer. + Or the size in bytes of the buffer needed to obtain. + + @retval EFI_INVALID_PARAMETER The Buffer or BufferSize is NULL. + @retval EFI_BUFFER_TOO_SMALL The Buffer is too small to hold the data. + @retval EFI_OUT_OF_RESOURCES A memory allcation failed. + @retval EFI_SUCCESS The Data parsed successful and save in the Buffer. +**/ +EFI_STATUS +ParseParameterData ( + IN CONST CHAR16 *Data, + OUT VOID *Buffer, + IN OUT UINTN *BufferSize + ) +{ + UINT64 HexNumber; + UINTN HexNumberLen; + UINTN Size; + CHAR8 *AsciiBuffer; + DATA_TYPE DataType; + EFI_DEVICE_PATH_PROTOCOL *DevPath; + EFI_STATUS Status; + + HexNumber = 0; + HexNumberLen = 0; + Size = 0; + AsciiBuffer = NULL; + DevPath = NULL; + Status = EFI_SUCCESS; + + if ((Data == NULL) || (BufferSize == NULL)) { + return EFI_INVALID_PARAMETER; + } + + DataType = TestDataType (Data); + if (DataType == DataTypeHexNumber) { + // + // hex number + // + StrHexToUint64S (Data + 2, NULL, &HexNumber); + HexNumberLen = StrLen (Data + 2); + if ((HexNumberLen >= 1) && (HexNumberLen <= 2)) { + Size = 1; + } else if ((HexNumberLen >= 3) && (HexNumberLen <= 4)) { + Size = 2; + } else if ((HexNumberLen >= 5) && (HexNumberLen <= 8)) { + Size = 4; + } else if ((HexNumberLen >= 9) && (HexNumberLen <= 16)) { + Size = 8; + } + + if ((Buffer != NULL) && (*BufferSize >= Size)) { + CopyMem (Buffer, (VOID *)&HexNumber, Size); + } else { + Status = EFI_BUFFER_TOO_SMALL; + } + + *BufferSize = Size; + } else if (DataType == DataTypeHexArray) { + // + // hex array + // + if (*Data == L'H') { + Data = Data + 1; + } + + Size = StrLen (Data) / 2; + if ((Buffer != NULL) && (*BufferSize >= Size)) { + StrHexToBytes (Data, StrLen (Data), (UINT8 *)Buffer, Size); + } else { + Status = EFI_BUFFER_TOO_SMALL; + } + + *BufferSize = Size; + } else if (DataType == DataTypeAscii) { + // + // ascii text + // + if (*Data == L'S') { + Data = Data + 1; + } + + AsciiBuffer = AllocateZeroPool (StrSize (Data) / 2); + if (AsciiBuffer == NULL) { + Status = EFI_OUT_OF_RESOURCES; + } else { + AsciiSPrint (AsciiBuffer, StrSize (Data) / 2, "%s", (CHAR8 *)Data); + + Size = StrSize (Data) / 2 - 1; + if ((Buffer != NULL) && (*BufferSize >= Size)) { + CopyMem (Buffer, AsciiBuffer, Size); + } else { + Status = EFI_BUFFER_TOO_SMALL; + } + + *BufferSize = Size; + } + + SHELL_FREE_NON_NULL (AsciiBuffer); + } else if (DataType == DataTypeUnicode) { + // + // unicode text + // + if (*Data == L'L') { + Data = Data + 1; + } + + Size = StrSize (Data) - sizeof (CHAR16); + if ((Buffer != NULL) && (*BufferSize >= Size)) { + CopyMem (Buffer, Data, Size); + } else { + Status = EFI_BUFFER_TOO_SMALL; + } + + *BufferSize = Size; + } else if (DataType == DataTypeDevicePath) { + if (*Data == L'P') { + Data = Data + 1; + } else if (StrnCmp (Data, L"--", 2) == 0) { + Data = Data + 2; + } + + DevPath = ConvertTextToDevicePath (Data); + if (DevPath == NULL) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar"); + Status = EFI_INVALID_PARAMETER; + } else { + Size = GetDevicePathSize (DevPath); + if ((Buffer != NULL) && (*BufferSize >= Size)) { + CopyMem (Buffer, DevPath, Size); + } else { + Status = EFI_BUFFER_TOO_SMALL; + } + + *BufferSize = Size; + } + + SHELL_FREE_NON_NULL (DevPath); + } else { + Status = EFI_INVALID_PARAMETER; + } + + return Status; +} + +/** + Function to get each data from parameters. + + @param[in] Package The package of checked values. + @param[out] Buffer A pointer to a buffer to hold the return data. + @param[out] BufferSize Indicates the size of data in bytes return in Buffer. + + @retval EFI_INVALID_PARAMETER Buffer or BufferSize is NULL. + @retval EFI_OUT_OF_RESOURCES A memory allcation failed. + @retval EFI_SUCCESS Get each parameter data was successful. +**/ +EFI_STATUS +GetVariableDataFromParameter ( + IN CONST LIST_ENTRY *Package, + OUT UINT8 **Buffer, + OUT UINTN *BufferSize + ) +{ + CONST CHAR16 *TempData; + UINTN Index; + UINTN TotalSize; + UINTN Size; + UINT8 *BufferWalker; + EFI_STATUS Status; + + TotalSize = 0; + Size = 0; + Status = EFI_SUCCESS; + + if ((BufferSize == NULL) || (Buffer == NULL) || (ShellCommandLineGetCount (Package) < 3)) { + return EFI_INVALID_PARAMETER; + } + + for (Index = 2; Index < ShellCommandLineGetCount (Package); Index++) { + TempData = ShellCommandLineGetRawValue (Package, Index); + ASSERT (TempData != NULL); + + if (TempData[0] != L'=') { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", TempData); + return EFI_INVALID_PARAMETER; + } + + TempData = TempData + 1; + Size = 0; + Status = ParseParameterData (TempData, NULL, &Size); + if (EFI_ERROR (Status)) { + if (Status == EFI_BUFFER_TOO_SMALL) { + // + // We expect return EFI_BUFFER_TOO_SMALL when pass 'NULL' as second parameter to the function ParseParameterData. + // + TotalSize += Size; + } else { + if (Status == EFI_INVALID_PARAMETER) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", TempData); + } else if (Status == EFI_NOT_FOUND) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar"); + } + + return Status; + } + } + } + + *BufferSize = TotalSize; + *Buffer = AllocateZeroPool (TotalSize); + + if (*Buffer == NULL) { + Status = EFI_OUT_OF_RESOURCES; + } else { + BufferWalker = *Buffer; + for (Index = 2; Index < ShellCommandLineGetCount (Package); Index++) { + TempData = ShellCommandLineGetRawValue (Package, Index); + TempData = TempData + 1; + + Size = TotalSize; + Status = ParseParameterData (TempData, (VOID *)BufferWalker, &Size); + if (!EFI_ERROR (Status)) { + BufferWalker = BufferWalker + Size; + TotalSize = TotalSize - Size; + } else { + return Status; + } + } + } + + return EFI_SUCCESS; +} + +/** + Function for 'setvar' 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 +ShellCommandRunSetVar ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + EFI_STATUS Status; + RETURN_STATUS RStatus; + LIST_ENTRY *Package; + CHAR16 *ProblemParam; + SHELL_STATUS ShellStatus; + CONST CHAR16 *VariableName; + EFI_GUID Guid; + CONST CHAR16 *StringGuid; + UINT32 Attributes; + VOID *Buffer; + UINTN Size; + UINTN LoopVar; + + ShellStatus = SHELL_SUCCESS; + Status = EFI_SUCCESS; + Buffer = NULL; + Size = 0; + Attributes = 0; + + // + // initialize the shell lib (we must be in non-auto-init...) + // + Status = ShellInitialize (); + ASSERT_EFI_ERROR (Status); + + Status = CommandInit (); + ASSERT_EFI_ERROR (Status); + + // + // parse the command line + // + Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE); + if (EFI_ERROR (Status)) { + if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"setvar", ProblemParam); + FreePool (ProblemParam); + ShellStatus = SHELL_INVALID_PARAMETER; + } else { + ASSERT (FALSE); + } + } else if (ShellCommandLineCheckDuplicate (Package, &ProblemParam) != EFI_SUCCESS) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_DUPLICATE), gShellDebug1HiiHandle, L"setvar", ProblemParam); + FreePool (ProblemParam); + ShellStatus = SHELL_INVALID_PARAMETER; + } else { + if (ShellCommandLineGetCount (Package) < 2) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"setvar"); + ShellStatus = SHELL_INVALID_PARAMETER; + } else { + VariableName = ShellCommandLineGetRawValue (Package, 1); + if (!ShellCommandLineGetFlag (Package, L"-guid")) { + CopyGuid (&Guid, &gEfiGlobalVariableGuid); + } else { + StringGuid = ShellCommandLineGetValue (Package, L"-guid"); + RStatus = StrToGuid (StringGuid, &Guid); + if (RETURN_ERROR (RStatus) || (StringGuid[GUID_STRING_LENGTH] != L'\0')) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", StringGuid); + ShellStatus = SHELL_INVALID_PARAMETER; + } + } + + if (ShellCommandLineGetCount (Package) == 2) { + // + // Display + // + Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer); + if (Status == EFI_BUFFER_TOO_SMALL) { + Buffer = AllocateZeroPool (Size); + Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer); + } + + if (!EFI_ERROR (Status) && (Buffer != NULL)) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_PRINT), gShellDebug1HiiHandle, &Guid, VariableName, Size); + for (LoopVar = 0; LoopVar < Size; LoopVar++) { + ShellPrintEx (-1, -1, L"%02x ", ((UINT8 *)Buffer)[LoopVar]); + } + + ShellPrintEx (-1, -1, L"\r\n"); + } else { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_GET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); + ShellStatus = SHELL_ACCESS_DENIED; + } + } else { + // + // Create, Delete or Modify. + // + Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer); + if (Status == EFI_BUFFER_TOO_SMALL) { + Buffer = AllocateZeroPool (Size); + Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer); + } + + if (EFI_ERROR (Status) || (Buffer == NULL)) { + // + // Creating a new variable. determine attributes from command line. + // + Attributes = 0; + if (ShellCommandLineGetFlag (Package, L"-bs")) { + Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS; + } + + if (ShellCommandLineGetFlag (Package, L"-rt")) { + Attributes |= EFI_VARIABLE_RUNTIME_ACCESS | + EFI_VARIABLE_BOOTSERVICE_ACCESS; + } + + if (ShellCommandLineGetFlag (Package, L"-nv")) { + Attributes |= EFI_VARIABLE_NON_VOLATILE; + } + } + + SHELL_FREE_NON_NULL (Buffer); + + Size = 0; + Status = GetVariableDataFromParameter (Package, (UINT8 **)&Buffer, &Size); + if (!EFI_ERROR (Status)) { + Status = gRT->SetVariable ((CHAR16 *)VariableName, &Guid, Attributes, Size, Buffer); + } + + if (EFI_ERROR (Status)) { + ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); + ShellStatus = SHELL_ACCESS_DENIED; + } else { + ASSERT (ShellStatus == SHELL_SUCCESS); + } + } + } + + ShellCommandLineFreeVarList (Package); + } + + if (Buffer != NULL) { + FreePool (Buffer); + } + + return (ShellStatus); +} |