ShellPkg/Library/UefiShellLevel3CommandsLib/GetMtc.c

   1 /** @file
   2   Main file for GetMtc shell level 3 function.
   3
   4   (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
   5   Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved. <BR>
   6   This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include "UefiShellLevel3CommandsLib.h"
  17
  18 #include <Library/ShellLib.h>
  19
  20 /**
  21   Function for 'getmtc' command.
  22
  23   @param[in] ImageHandle  Handle to the Image (NULL if Internal).
  24   @param[in] SystemTable  Pointer to the System Table (NULL if Internal).
  25 **/
  26 SHELL_STATUS
  27 EFIAPI
  28 ShellCommandRunGetMtc (
  29   IN EFI_HANDLE        ImageHandle,
  30   IN EFI_SYSTEM_TABLE  *SystemTable
  31   )
  32 {
  33   EFI_STATUS          Status;
  34   LIST_ENTRY          *Package;
  35   CHAR16              *ProblemParam;
  36   SHELL_STATUS        ShellStatus;
  37   UINT64              Mtc;
  38
  39   ProblemParam        = NULL;
  40   ShellStatus         = SHELL_SUCCESS;
  41
  42   //
  43   // initialize the shell lib (we must be in non-auto-init...)
  44   //
  45   Status = ShellInitialize();
  46   ASSERT_EFI_ERROR(Status);
  47
  48   //
  49   // parse the command line
  50   //
  51   Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
  52   if (EFI_ERROR(Status)) {
  53     if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
  54       ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel3HiiHandle, L"getmtc", ProblemParam);
  55       FreePool(ProblemParam);
  56       ShellStatus = SHELL_INVALID_PARAMETER;
  57     } else {
  58       ASSERT(FALSE);
  59     }
  60   } else {
  61     //
  62     // check for "-?"
  63     //
  64     if (ShellCommandLineGetFlag(Package, L"-?")) {
  65       ASSERT(FALSE);
  66     } else if (ShellCommandLineGetRawValue(Package, 1) != NULL) {
  67       ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel3HiiHandle, L"getmtc");
  68       ShellStatus = SHELL_INVALID_PARAMETER;
  69     } else {
  70       //
  71       // Get the monotonic counter count
  72       //
  73       Status = gBS->GetNextMonotonicCount(&Mtc);
  74       if (Status == EFI_DEVICE_ERROR) {
  75         ShellStatus = SHELL_DEVICE_ERROR;
  76       } else if (Status == EFI_SECURITY_VIOLATION) {
  77         ShellStatus = SHELL_SECURITY_VIOLATION;
  78       } else if (EFI_ERROR(Status)) {
  79         ShellStatus = SHELL_DEVICE_ERROR;
  80       }
  81
  82       //
  83       // print it...
  84       //
  85       if (ShellStatus == SHELL_SUCCESS) {
  86         ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GET_MTC_OUTPUT), gShellLevel3HiiHandle, Mtc);
  87       }
  88     }
  89     //
  90     // free the command line package
  91     //
  92     ShellCommandLineFreeVarList (Package);
  93   }
  94
  95   return (ShellStatus);
  96 }
  97