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