| 1 | /** @file
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| 2 | Main file for attrib shell level 2 function.
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| 3 |
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| 4 | (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
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| 5 | Copyright (c) 2009 - 2019, Intel Corporation. All rights reserved.<BR>
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| 6 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 7 |
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| 8 | **/
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| 9 |
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| 10 | #include "UefiShellLevel2CommandsLib.h"
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| 11 |
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| 12 | // This function was from from the BdsLib implementation in
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| 13 | // IntelFrameworkModulePkg\Library\GenericBdsLib\BdsConnect.c
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| 14 | // function name: BdsLibConnectAllEfi
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| 15 |
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| 16 | /**
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| 17 | This function will connect all current system handles recursively. The
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| 18 | connection will finish until every handle's child handle created if it have.
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| 19 |
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| 20 | @retval EFI_SUCCESS All handles and it's child handle have been
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| 21 | connected
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| 22 | @retval EFI_STATUS Return the status of gBS->LocateHandleBuffer().
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| 23 |
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| 24 | **/
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| 25 | EFI_STATUS
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| 26 | ConnectAllEfi (
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| 27 | VOID
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| 28 | )
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| 29 | {
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| 30 | EFI_STATUS Status;
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| 31 | UINTN HandleCount;
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| 32 | EFI_HANDLE *HandleBuffer;
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| 33 | UINTN Index;
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| 34 |
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| 35 | Status = gBS->LocateHandleBuffer (
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| 36 | AllHandles,
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| 37 | NULL,
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| 38 | NULL,
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| 39 | &HandleCount,
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| 40 | &HandleBuffer
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| 41 | );
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| 42 | if (EFI_ERROR (Status)) {
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| 43 | return Status;
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| 44 | }
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| 45 |
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| 46 | for (Index = 0; Index < HandleCount; Index++) {
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| 47 | Status = gBS->ConnectController (HandleBuffer[Index], NULL, NULL, TRUE);
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| 48 | }
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| 49 |
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| 50 | if (HandleBuffer != NULL) {
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| 51 | FreePool (HandleBuffer);
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| 52 | }
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| 53 |
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| 54 | return EFI_SUCCESS;
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| 55 | }
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| 56 |
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| 57 | /**
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| 58 | function to load a .EFI driver into memory and possible connect the driver.
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| 59 |
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| 60 | if FileName is NULL then ASSERT.
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| 61 |
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| 62 | @param[in] FileName FileName of the driver to load
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| 63 | @param[in] Connect Whether to connect or not
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| 64 |
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| 65 | @retval EFI_SUCCESS the driver was loaded and if Connect was
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| 66 | true then connect was attempted. Connection may
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| 67 | have failed.
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| 68 | @retval EFI_OUT_OF_RESOURCES there was insufficient memory
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| 69 | **/
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| 70 | EFI_STATUS
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| 71 | LoadDriver (
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| 72 | IN CONST CHAR16 *FileName,
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| 73 | IN CONST BOOLEAN Connect
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| 74 | )
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| 75 | {
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| 76 | EFI_HANDLE LoadedDriverHandle;
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| 77 | EFI_STATUS Status;
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| 78 | EFI_DEVICE_PATH_PROTOCOL *FilePath;
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| 79 | EFI_LOADED_IMAGE_PROTOCOL *LoadedDriverImage;
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| 80 |
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| 81 | LoadedDriverImage = NULL;
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| 82 | FilePath = NULL;
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| 83 | LoadedDriverHandle = NULL;
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| 84 | Status = EFI_SUCCESS;
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| 85 |
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| 86 | ASSERT (FileName != NULL);
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| 87 |
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| 88 | //
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| 89 | // Fix local copies of the protocol pointers
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| 90 | //
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| 91 | Status = CommandInit ();
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| 92 | ASSERT_EFI_ERROR (Status);
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| 93 |
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| 94 | //
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| 95 | // Convert to DEVICE_PATH
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| 96 | //
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| 97 | FilePath = gEfiShellProtocol->GetDevicePathFromFilePath (FileName);
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| 98 |
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| 99 | if (FilePath == NULL) {
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| 100 | ASSERT (FALSE);
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| 101 | return (EFI_INVALID_PARAMETER);
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| 102 | }
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| 103 |
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| 104 | //
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| 105 | // Use LoadImage to get it into memory
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| 106 | //
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| 107 | Status = gBS->LoadImage (
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| 108 | FALSE,
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| 109 | gImageHandle,
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| 110 | FilePath,
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| 111 | NULL,
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| 112 | 0,
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| 113 | &LoadedDriverHandle
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| 114 | );
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| 115 |
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| 116 | if (EFI_ERROR (Status)) {
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| 117 | //
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| 118 | // With EFI_SECURITY_VIOLATION retval, the Image was loaded and an ImageHandle was created
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| 119 | // with a valid EFI_LOADED_IMAGE_PROTOCOL, but the image can not be started right now.
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| 120 | // If the caller doesn't have the option to defer the execution of an image, we should
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| 121 | // unload image for the EFI_SECURITY_VIOLATION to avoid resource leak.
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| 122 | //
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| 123 | if (Status == EFI_SECURITY_VIOLATION) {
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| 124 | gBS->UnloadImage (LoadedDriverHandle);
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| 125 | }
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| 126 |
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| 127 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_LOAD_NOT_IMAGE), gShellLevel2HiiHandle, FileName, Status);
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| 128 | } else {
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| 129 | //
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| 130 | // Make sure it is a driver image
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| 131 | //
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| 132 | Status = gBS->HandleProtocol (LoadedDriverHandle, &gEfiLoadedImageProtocolGuid, (VOID *)&LoadedDriverImage);
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| 133 |
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| 134 | ASSERT (LoadedDriverImage != NULL);
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| 135 |
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| 136 | if ( EFI_ERROR (Status)
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| 137 | || ( (LoadedDriverImage->ImageCodeType != EfiBootServicesCode)
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| 138 | && (LoadedDriverImage->ImageCodeType != EfiRuntimeServicesCode))
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| 139 | )
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| 140 | {
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| 141 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_LOAD_NOT_DRIVER), gShellLevel2HiiHandle, FileName);
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| 142 |
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| 143 | //
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| 144 | // Exit and unload the non-driver image
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| 145 | //
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| 146 | gBS->Exit (LoadedDriverHandle, EFI_INVALID_PARAMETER, 0, NULL);
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| 147 | Status = EFI_INVALID_PARAMETER;
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| 148 | }
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| 149 | }
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| 150 |
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| 151 | if (!EFI_ERROR (Status)) {
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| 152 | //
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| 153 | // Start the image
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| 154 | //
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| 155 | Status = gBS->StartImage (LoadedDriverHandle, NULL, NULL);
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| 156 | if (EFI_ERROR (Status)) {
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| 157 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_LOAD_ERROR), gShellLevel2HiiHandle, FileName, Status);
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| 158 | } else {
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| 159 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_LOAD_LOADED), gShellLevel2HiiHandle, FileName, LoadedDriverImage->ImageBase, Status);
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| 160 | }
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| 161 | }
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| 162 |
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| 163 | if (!EFI_ERROR (Status) && Connect) {
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| 164 | //
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| 165 | // Connect it...
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| 166 | //
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| 167 | Status = ConnectAllEfi ();
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| 168 | }
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| 169 |
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| 170 | //
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| 171 | // clean up memory...
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| 172 | //
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| 173 | if (FilePath != NULL) {
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| 174 | FreePool (FilePath);
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| 175 | }
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| 176 |
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| 177 | return (Status);
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| 178 | }
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| 179 |
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| 180 | STATIC CONST SHELL_PARAM_ITEM LoadParamList[] = {
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| 181 | { L"-nc", TypeFlag },
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| 182 | { NULL, TypeMax }
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| 183 | };
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| 184 |
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| 185 | /**
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| 186 | Function for 'load' command.
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| 187 |
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| 188 | @param[in] ImageHandle Handle to the Image (NULL if Internal).
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| 189 | @param[in] SystemTable Pointer to the System Table (NULL if Internal).
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| 190 | **/
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| 191 | SHELL_STATUS
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| 192 | EFIAPI
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| 193 | ShellCommandRunLoad (
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| 194 | IN EFI_HANDLE ImageHandle,
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| 195 | IN EFI_SYSTEM_TABLE *SystemTable
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| 196 | )
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| 197 | {
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| 198 | EFI_STATUS Status;
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| 199 | LIST_ENTRY *Package;
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| 200 | CHAR16 *ProblemParam;
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| 201 | SHELL_STATUS ShellStatus;
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| 202 | UINTN ParamCount;
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| 203 | EFI_SHELL_FILE_INFO *ListHead;
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| 204 | EFI_SHELL_FILE_INFO *Node;
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| 205 |
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| 206 | ListHead = NULL;
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| 207 | ProblemParam = NULL;
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| 208 | ShellStatus = SHELL_SUCCESS;
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| 209 |
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| 210 | //
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| 211 | // initialize the shell lib (we must be in non-auto-init...)
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| 212 | //
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| 213 | Status = ShellInitialize ();
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| 214 | ASSERT_EFI_ERROR (Status);
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| 215 |
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| 216 | //
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| 217 | // parse the command line
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| 218 | //
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| 219 | Status = ShellCommandLineParse (LoadParamList, &Package, &ProblemParam, TRUE);
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| 220 | if (EFI_ERROR (Status)) {
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| 221 | if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
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| 222 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"load", ProblemParam);
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| 223 | FreePool (ProblemParam);
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| 224 | ShellStatus = SHELL_INVALID_PARAMETER;
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| 225 | } else {
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| 226 | ASSERT (FALSE);
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| 227 | }
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| 228 | } else {
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| 229 | //
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| 230 | // check for "-?"
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| 231 | //
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| 232 | if (ShellCommandLineGetFlag (Package, L"-?")) {
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| 233 | ASSERT (FALSE);
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| 234 | } else if (ShellCommandLineGetRawValue (Package, 1) == NULL) {
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| 235 | //
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| 236 | // we didnt get a single file to load parameter
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| 237 | //
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| 238 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel2HiiHandle, L"load");
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| 239 | ShellStatus = SHELL_INVALID_PARAMETER;
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| 240 | } else {
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| 241 | for ( ParamCount = 1
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| 242 | ; ShellCommandLineGetRawValue (Package, ParamCount) != NULL
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| 243 | ; ParamCount++
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| 244 | )
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| 245 | {
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| 246 | Status = ShellOpenFileMetaArg ((CHAR16 *)ShellCommandLineGetRawValue (Package, ParamCount), EFI_FILE_MODE_READ, &ListHead);
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| 247 | if (!EFI_ERROR (Status)) {
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| 248 | for ( Node = (EFI_SHELL_FILE_INFO *)GetFirstNode (&ListHead->Link)
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| 249 | ; !IsNull (&ListHead->Link, &Node->Link)
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| 250 | ; Node = (EFI_SHELL_FILE_INFO *)GetNextNode (&ListHead->Link, &Node->Link)
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| 251 | )
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| 252 | {
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| 253 | //
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| 254 | // once we have an error preserve that value, but finish the loop.
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| 255 | //
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| 256 | if (EFI_ERROR (Status)) {
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| 257 | LoadDriver (Node->FullName, (BOOLEAN)(ShellCommandLineGetFlag (Package, L"-nc") == FALSE));
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| 258 | } else {
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| 259 | Status = LoadDriver (Node->FullName, (BOOLEAN)(ShellCommandLineGetFlag (Package, L"-nc") == FALSE));
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| 260 | }
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| 261 | } // for loop for multi-open
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| 262 |
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| 263 | if (EFI_ERROR (Status)) {
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| 264 | ShellCloseFileMetaArg (&ListHead);
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| 265 | } else {
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| 266 | Status = ShellCloseFileMetaArg (&ListHead);
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| 267 | }
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| 268 | } else {
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| 269 | //
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| 270 | // no files found.
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| 271 | //
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| 272 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_NF), gShellLevel2HiiHandle, L"load", (CHAR16 *)ShellCommandLineGetRawValue (Package, ParamCount));
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| 273 | ShellStatus = SHELL_NOT_FOUND;
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| 274 | }
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| 275 | } // for loop for params
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| 276 | }
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| 277 |
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| 278 | //
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| 279 | // free the command line package
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| 280 | //
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| 281 | ShellCommandLineFreeVarList (Package);
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| 282 | }
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| 283 |
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| 284 | if (EFI_ERROR (Status) && (ShellStatus == SHELL_SUCCESS)) {
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| 285 | ShellStatus = SHELL_DEVICE_ERROR;
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| 286 | }
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| 287 |
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| 288 | return (ShellStatus);
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| 289 | }
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