diff options
Diffstat (limited to 'src/boot/efi/stub.c')
| -rw-r--r-- | src/boot/efi/stub.c | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/src/boot/efi/stub.c b/src/boot/efi/stub.c deleted file mode 100644 index 1e250f34f4..0000000000 --- a/src/boot/efi/stub.c +++ /dev/null @@ -1,130 +0,0 @@ -/* This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 2.1 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * Copyright (C) 2015 Kay Sievers <kay@vrfy.org> - */ - -#include <efi.h> -#include <efilib.h> - -#include "disk.h" -#include "graphics.h" -#include "linux.h" -#include "pefile.h" -#include "splash.h" -#include "util.h" -#include "measure.h" - -/* magic string to find in the binary image */ -static const char __attribute__((used)) magic[] = "#### LoaderInfo: systemd-stub " VERSION " ####"; - -static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE; - -EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) { - EFI_LOADED_IMAGE *loaded_image; - EFI_FILE *root_dir; - CHAR16 *loaded_image_path; - CHAR8 *b; - UINTN size; - BOOLEAN secure = FALSE; - CHAR8 *sections[] = { - (UINT8 *)".cmdline", - (UINT8 *)".linux", - (UINT8 *)".initrd", - (UINT8 *)".splash", - NULL - }; - UINTN addrs[ELEMENTSOF(sections)-1] = {}; - UINTN offs[ELEMENTSOF(sections)-1] = {}; - UINTN szs[ELEMENTSOF(sections)-1] = {}; - CHAR8 *cmdline = NULL; - UINTN cmdline_len; - CHAR16 uuid[37]; - EFI_STATUS err; - - InitializeLib(image, sys_table); - - err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image, - image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); - if (EFI_ERROR(err)) { - Print(L"Error getting a LoadedImageProtocol handle: %r ", err); - uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); - return err; - } - - root_dir = LibOpenRoot(loaded_image->DeviceHandle); - if (!root_dir) { - Print(L"Unable to open root directory: %r ", err); - uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); - return EFI_LOAD_ERROR; - } - - loaded_image_path = DevicePathToStr(loaded_image->FilePath); - - if (efivar_get_raw(&global_guid, L"SecureBoot", &b, &size) == EFI_SUCCESS) { - if (*b > 0) - secure = TRUE; - FreePool(b); - } - - err = pefile_locate_sections(root_dir, loaded_image_path, sections, addrs, offs, szs); - if (EFI_ERROR(err)) { - Print(L"Unable to locate embedded .linux section: %r ", err); - uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); - return err; - } - - if (szs[0] > 0) - cmdline = (CHAR8 *)(loaded_image->ImageBase + addrs[0]); - - cmdline_len = szs[0]; - - /* if we are not in secure boot mode, accept a custom command line and replace the built-in one */ - if (!secure && loaded_image->LoadOptionsSize > 0) { - CHAR16 *options; - CHAR8 *line; - UINTN i; - - options = (CHAR16 *)loaded_image->LoadOptions; - cmdline_len = (loaded_image->LoadOptionsSize / sizeof(CHAR16)) * sizeof(CHAR8); - line = AllocatePool(cmdline_len); - for (i = 0; i < cmdline_len; i++) - line[i] = options[i]; - cmdline = line; - -#ifdef SD_BOOT_LOG_TPM - /* Try to log any options to the TPM, escpecially manually edited options */ - err = tpm_log_event(SD_TPM_PCR, - (EFI_PHYSICAL_ADDRESS) loaded_image->LoadOptions, - loaded_image->LoadOptionsSize, loaded_image->LoadOptions); - if (EFI_ERROR(err)) { - Print(L"Unable to add image options measurement: %r", err); - uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); - return err; - } -#endif - } - - /* export the device path this image is started from */ - if (disk_get_part_uuid(loaded_image->DeviceHandle, uuid) == EFI_SUCCESS) - efivar_set(L"LoaderDevicePartUUID", uuid, FALSE); - - if (szs[3] > 0) - graphics_splash((UINT8 *)((UINTN)loaded_image->ImageBase + addrs[3]), szs[3], NULL); - - err = linux_exec(image, cmdline, cmdline_len, - (UINTN)loaded_image->ImageBase + addrs[1], - (UINTN)loaded_image->ImageBase + addrs[2], szs[2]); - - graphics_mode(FALSE); - Print(L"Execution of embedded linux image failed: %r\n", err); - uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); - return err; -} |