| /* SPDX-License-Identifier: LGPL-2.1+ */ |
| |
| #include <efi.h> |
| #include <efilib.h> |
| |
| #include "console.h" |
| #include "disk.h" |
| #include "graphics.h" |
| #include "linux.h" |
| #include "measure.h" |
| #include "pe.h" |
| #include "shim.h" |
| #include "util.h" |
| |
| #ifndef EFI_OS_INDICATIONS_BOOT_TO_FW_UI |
| #define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001ULL |
| #endif |
| |
| /* magic string to find in the binary image */ |
| static const char __attribute__((used)) magic[] = "#### LoaderInfo: systemd-boot " GIT_VERSION " ####"; |
| |
| static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE; |
| |
| enum loader_type { |
| LOADER_UNDEFINED, |
| LOADER_EFI, |
| LOADER_LINUX, |
| }; |
| |
| typedef struct { |
| CHAR16 *id; /* The identifier for this entry (note that this id is not necessarily unique though!) */ |
| CHAR16 *title_show; |
| CHAR16 *title; |
| CHAR16 *version; |
| CHAR16 *machine_id; |
| EFI_HANDLE *device; |
| enum loader_type type; |
| CHAR16 *loader; |
| CHAR16 *options; |
| CHAR16 key; |
| EFI_STATUS (*call)(VOID); |
| BOOLEAN no_autoselect; |
| BOOLEAN non_unique; |
| UINTN tries_done; |
| UINTN tries_left; |
| CHAR16 *path; |
| CHAR16 *current_name; |
| CHAR16 *next_name; |
| } ConfigEntry; |
| |
| typedef struct { |
| ConfigEntry **entries; |
| UINTN entry_count; |
| INTN idx_default; |
| INTN idx_default_efivar; |
| UINTN timeout_sec; |
| UINTN timeout_sec_config; |
| INTN timeout_sec_efivar; |
| CHAR16 *entry_default_pattern; |
| CHAR16 *entry_oneshot; |
| CHAR16 *options_edit; |
| BOOLEAN editor; |
| BOOLEAN auto_entries; |
| BOOLEAN auto_firmware; |
| BOOLEAN force_menu; |
| UINTN console_mode; |
| enum console_mode_change_type console_mode_change; |
| } Config; |
| |
| static VOID cursor_left(UINTN *cursor, UINTN *first) { |
| if ((*cursor) > 0) |
| (*cursor)--; |
| else if ((*first) > 0) |
| (*first)--; |
| } |
| |
| static VOID cursor_right( |
| UINTN *cursor, |
| UINTN *first, |
| UINTN x_max, |
| UINTN len) { |
| |
| if ((*cursor)+1 < x_max) |
| (*cursor)++; |
| else if ((*first) + (*cursor) < len) |
| (*first)++; |
| } |
| |
| static BOOLEAN line_edit( |
| CHAR16 *line_in, |
| CHAR16 **line_out, |
| UINTN x_max, |
| UINTN y_pos) { |
| |
| _cleanup_freepool_ CHAR16 *line = NULL, *print = NULL; |
| UINTN size, len, first, cursor, clear; |
| BOOLEAN exit, enter; |
| |
| if (!line_in) |
| line_in = L""; |
| size = StrLen(line_in) + 1024; |
| line = AllocatePool(size * sizeof(CHAR16)); |
| StrCpy(line, line_in); |
| len = StrLen(line); |
| print = AllocatePool((x_max+1) * sizeof(CHAR16)); |
| |
| uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, TRUE); |
| |
| first = 0; |
| cursor = 0; |
| clear = 0; |
| enter = FALSE; |
| exit = FALSE; |
| while (!exit) { |
| EFI_STATUS err; |
| UINT64 key; |
| UINTN i; |
| |
| i = len - first; |
| if (i >= x_max-1) |
| i = x_max-1; |
| CopyMem(print, line + first, i * sizeof(CHAR16)); |
| while (clear > 0 && i < x_max-1) { |
| clear--; |
| print[i++] = ' '; |
| } |
| print[i] = '\0'; |
| |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_pos); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, print); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); |
| |
| err = console_key_read(&key, TRUE); |
| if (EFI_ERROR(err)) |
| continue; |
| |
| switch (key) { |
| case KEYPRESS(0, SCAN_ESC, 0): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'c'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'g'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('c')): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('g')): |
| exit = TRUE; |
| break; |
| |
| case KEYPRESS(0, SCAN_HOME, 0): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'a'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('a')): |
| /* beginning-of-line */ |
| cursor = 0; |
| first = 0; |
| continue; |
| |
| case KEYPRESS(0, SCAN_END, 0): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'e'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('e')): |
| /* end-of-line */ |
| cursor = len - first; |
| if (cursor+1 >= x_max) { |
| cursor = x_max-1; |
| first = len - (x_max-1); |
| } |
| continue; |
| |
| case KEYPRESS(0, SCAN_DOWN, 0): |
| case KEYPRESS(EFI_ALT_PRESSED, 0, 'f'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_RIGHT, 0): |
| /* forward-word */ |
| while (line[first + cursor] == ' ') |
| cursor_right(&cursor, &first, x_max, len); |
| while (line[first + cursor] && line[first + cursor] != ' ') |
| cursor_right(&cursor, &first, x_max, len); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); |
| continue; |
| |
| case KEYPRESS(0, SCAN_UP, 0): |
| case KEYPRESS(EFI_ALT_PRESSED, 0, 'b'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_LEFT, 0): |
| /* backward-word */ |
| if ((first + cursor) > 0 && line[first + cursor-1] == ' ') { |
| cursor_left(&cursor, &first); |
| while ((first + cursor) > 0 && line[first + cursor] == ' ') |
| cursor_left(&cursor, &first); |
| } |
| while ((first + cursor) > 0 && line[first + cursor-1] != ' ') |
| cursor_left(&cursor, &first); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); |
| continue; |
| |
| case KEYPRESS(0, SCAN_RIGHT, 0): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'f'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('f')): |
| /* forward-char */ |
| if (first + cursor == len) |
| continue; |
| cursor_right(&cursor, &first, x_max, len); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); |
| continue; |
| |
| case KEYPRESS(0, SCAN_LEFT, 0): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'b'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('b')): |
| /* backward-char */ |
| cursor_left(&cursor, &first); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); |
| continue; |
| |
| case KEYPRESS(EFI_ALT_PRESSED, 0, 'd'): |
| /* kill-word */ |
| clear = 0; |
| for (i = first + cursor; i < len && line[i] == ' '; i++) |
| clear++; |
| for (; i < len && line[i] != ' '; i++) |
| clear++; |
| |
| for (i = first + cursor; i + clear < len; i++) |
| line[i] = line[i + clear]; |
| len -= clear; |
| line[len] = '\0'; |
| continue; |
| |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'w'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('w')): |
| case KEYPRESS(EFI_ALT_PRESSED, 0, CHAR_BACKSPACE): |
| /* backward-kill-word */ |
| clear = 0; |
| if ((first + cursor) > 0 && line[first + cursor-1] == ' ') { |
| cursor_left(&cursor, &first); |
| clear++; |
| while ((first + cursor) > 0 && line[first + cursor] == ' ') { |
| cursor_left(&cursor, &first); |
| clear++; |
| } |
| } |
| while ((first + cursor) > 0 && line[first + cursor-1] != ' ') { |
| cursor_left(&cursor, &first); |
| clear++; |
| } |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos); |
| |
| for (i = first + cursor; i + clear < len; i++) |
| line[i] = line[i + clear]; |
| len -= clear; |
| line[len] = '\0'; |
| continue; |
| |
| case KEYPRESS(0, SCAN_DELETE, 0): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'd'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('d')): |
| if (len == 0) |
| continue; |
| if (first + cursor == len) |
| continue; |
| for (i = first + cursor; i < len; i++) |
| line[i] = line[i+1]; |
| clear = 1; |
| len--; |
| continue; |
| |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'k'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('k')): |
| /* kill-line */ |
| line[first + cursor] = '\0'; |
| clear = len - (first + cursor); |
| len = first + cursor; |
| continue; |
| |
| case KEYPRESS(0, 0, CHAR_LINEFEED): |
| case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN): |
| if (StrCmp(line, line_in) != 0) { |
| *line_out = line; |
| line = NULL; |
| } |
| enter = TRUE; |
| exit = TRUE; |
| break; |
| |
| case KEYPRESS(0, 0, CHAR_BACKSPACE): |
| if (len == 0) |
| continue; |
| if (first == 0 && cursor == 0) |
| continue; |
| for (i = first + cursor-1; i < len; i++) |
| line[i] = line[i+1]; |
| clear = 1; |
| len--; |
| if (cursor > 0) |
| cursor--; |
| if (cursor > 0 || first == 0) |
| continue; |
| /* show full line if it fits */ |
| if (len < x_max) { |
| cursor = first; |
| first = 0; |
| continue; |
| } |
| /* jump left to see what we delete */ |
| if (first > 10) { |
| first -= 10; |
| cursor = 10; |
| } else { |
| cursor = first; |
| first = 0; |
| } |
| continue; |
| |
| case KEYPRESS(0, 0, ' ') ... KEYPRESS(0, 0, '~'): |
| case KEYPRESS(0, 0, 0x80) ... KEYPRESS(0, 0, 0xffff): |
| if (len+1 == size) |
| continue; |
| for (i = len; i > first + cursor; i--) |
| line[i] = line[i-1]; |
| line[first + cursor] = KEYCHAR(key); |
| len++; |
| line[len] = '\0'; |
| if (cursor+1 < x_max) |
| cursor++; |
| else if (first + cursor < len) |
| first++; |
| continue; |
| } |
| } |
| |
| uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE); |
| return enter; |
| } |
| |
| static UINTN entry_lookup_key(Config *config, UINTN start, CHAR16 key) { |
| UINTN i; |
| |
| if (key == 0) |
| return -1; |
| |
| /* select entry by number key */ |
| if (key >= '1' && key <= '9') { |
| i = key - '0'; |
| if (i > config->entry_count) |
| i = config->entry_count; |
| return i-1; |
| } |
| |
| /* find matching key in config entries */ |
| for (i = start; i < config->entry_count; i++) |
| if (config->entries[i]->key == key) |
| return i; |
| |
| for (i = 0; i < start; i++) |
| if (config->entries[i]->key == key) |
| return i; |
| |
| return -1; |
| } |
| |
| static VOID print_status(Config *config, CHAR16 *loaded_image_path) { |
| UINT64 key; |
| UINTN i; |
| _cleanup_freepool_ CHAR8 *bootvar = NULL, *modevar = NULL, *indvar = NULL; |
| _cleanup_freepool_ CHAR16 *partstr = NULL, *defaultstr = NULL; |
| UINTN x, y, size; |
| |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); |
| |
| Print(L"systemd-boot version: " GIT_VERSION "\n"); |
| Print(L"architecture: " EFI_MACHINE_TYPE_NAME "\n"); |
| Print(L"loaded image: %s\n", loaded_image_path); |
| Print(L"UEFI specification: %d.%02d\n", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); |
| Print(L"firmware vendor: %s\n", ST->FirmwareVendor); |
| Print(L"firmware version: %d.%02d\n", ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); |
| |
| if (uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &x, &y) == EFI_SUCCESS) |
| Print(L"console size: %d x %d\n", x, y); |
| |
| if (efivar_get_raw(&global_guid, L"SecureBoot", &bootvar, &size) == EFI_SUCCESS) |
| Print(L"SecureBoot: %s\n", yes_no(*bootvar > 0)); |
| |
| if (efivar_get_raw(&global_guid, L"SetupMode", &modevar, &size) == EFI_SUCCESS) |
| Print(L"SetupMode: %s\n", *modevar > 0 ? L"setup" : L"user"); |
| |
| if (shim_loaded()) |
| Print(L"Shim: present\n"); |
| |
| if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &indvar, &size) == EFI_SUCCESS) |
| Print(L"OsIndicationsSupported: %d\n", (UINT64)*indvar); |
| |
| Print(L"\n--- press key ---\n\n"); |
| console_key_read(&key, TRUE); |
| |
| Print(L"timeout: %u\n", config->timeout_sec); |
| if (config->timeout_sec_efivar >= 0) |
| Print(L"timeout (EFI var): %d\n", config->timeout_sec_efivar); |
| Print(L"timeout (config): %u\n", config->timeout_sec_config); |
| if (config->entry_default_pattern) |
| Print(L"default pattern: '%s'\n", config->entry_default_pattern); |
| Print(L"editor: %s\n", yes_no(config->editor)); |
| Print(L"auto-entries: %s\n", yes_no(config->auto_entries)); |
| Print(L"auto-firmware: %s\n", yes_no(config->auto_firmware)); |
| Print(L"\n"); |
| |
| Print(L"config entry count: %d\n", config->entry_count); |
| Print(L"entry selected idx: %d\n", config->idx_default); |
| if (config->idx_default_efivar >= 0) |
| Print(L"entry EFI var idx: %d\n", config->idx_default_efivar); |
| Print(L"\n"); |
| |
| if (efivar_get_int(L"LoaderConfigTimeout", &i) == EFI_SUCCESS) |
| Print(L"LoaderConfigTimeout: %u\n", i); |
| |
| if (config->entry_oneshot) |
| Print(L"LoaderEntryOneShot: %s\n", config->entry_oneshot); |
| if (efivar_get(L"LoaderDevicePartUUID", &partstr) == EFI_SUCCESS) |
| Print(L"LoaderDevicePartUUID: %s\n", partstr); |
| if (efivar_get(L"LoaderEntryDefault", &defaultstr) == EFI_SUCCESS) |
| Print(L"LoaderEntryDefault: %s\n", defaultstr); |
| |
| Print(L"\n--- press key ---\n\n"); |
| console_key_read(&key, TRUE); |
| |
| for (i = 0; i < config->entry_count; i++) { |
| ConfigEntry *entry; |
| |
| if (key == KEYPRESS(0, SCAN_ESC, 0) || key == KEYPRESS(0, 0, 'q')) |
| break; |
| |
| entry = config->entries[i]; |
| Print(L"config entry: %d/%d\n", i+1, config->entry_count); |
| if (entry->id) |
| Print(L"id '%s'\n", entry->id); |
| Print(L"title show '%s'\n", entry->title_show); |
| if (entry->title) |
| Print(L"title '%s'\n", entry->title); |
| if (entry->version) |
| Print(L"version '%s'\n", entry->version); |
| if (entry->machine_id) |
| Print(L"machine-id '%s'\n", entry->machine_id); |
| if (entry->device) { |
| EFI_DEVICE_PATH *device_path; |
| |
| device_path = DevicePathFromHandle(entry->device); |
| if (device_path) { |
| _cleanup_freepool_ CHAR16 *str; |
| |
| str = DevicePathToStr(device_path); |
| Print(L"device handle '%s'\n", str); |
| } |
| } |
| if (entry->loader) |
| Print(L"loader '%s'\n", entry->loader); |
| if (entry->options) |
| Print(L"options '%s'\n", entry->options); |
| Print(L"auto-select %s\n", yes_no(!entry->no_autoselect)); |
| if (entry->call) |
| Print(L"internal call yes\n"); |
| |
| if (entry->tries_left != (UINTN) -1) |
| Print(L"counting boots yes\n" |
| "tries done %u\n" |
| "tries left %u\n" |
| "current path %s\\%s\n" |
| "next path %s\\%s\n", |
| entry->tries_done, |
| entry->tries_left, |
| entry->path, entry->current_name, |
| entry->path, entry->next_name); |
| |
| Print(L"\n--- press key ---\n\n"); |
| console_key_read(&key, TRUE); |
| } |
| |
| uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); |
| } |
| |
| static BOOLEAN menu_run( |
| Config *config, |
| ConfigEntry **chosen_entry, |
| CHAR16 *loaded_image_path) { |
| |
| EFI_STATUS err; |
| UINTN visible_max; |
| UINTN idx_highlight; |
| UINTN idx_highlight_prev; |
| UINTN idx_first; |
| UINTN idx_last; |
| BOOLEAN refresh; |
| BOOLEAN highlight; |
| UINTN i; |
| UINTN line_width; |
| CHAR16 **lines; |
| UINTN x_start; |
| UINTN y_start; |
| UINTN x_max; |
| UINTN y_max; |
| CHAR16 *status; |
| CHAR16 *clearline; |
| INTN timeout_remain; |
| INT16 idx; |
| BOOLEAN exit = FALSE; |
| BOOLEAN run = TRUE; |
| BOOLEAN wait = FALSE; |
| BOOLEAN cleared_screen = FALSE; |
| |
| graphics_mode(FALSE); |
| uefi_call_wrapper(ST->ConIn->Reset, 2, ST->ConIn, FALSE); |
| uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE); |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| |
| /* draw a single character to make ClearScreen work on some firmware */ |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L" "); |
| |
| if (config->console_mode_change != CONSOLE_MODE_KEEP) { |
| err = console_set_mode(&config->console_mode, config->console_mode_change); |
| if (!EFI_ERROR(err)) |
| cleared_screen = TRUE; |
| } |
| |
| if (!cleared_screen) |
| uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); |
| |
| if (config->console_mode_change != CONSOLE_MODE_KEEP && EFI_ERROR(err)) |
| Print(L"Error switching console mode to %ld: %r.\r", (UINT64)config->console_mode, err); |
| |
| err = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &x_max, &y_max); |
| if (EFI_ERROR(err)) { |
| x_max = 80; |
| y_max = 25; |
| } |
| |
| /* we check 10 times per second for a keystroke */ |
| if (config->timeout_sec > 0) |
| timeout_remain = config->timeout_sec * 10; |
| else |
| timeout_remain = -1; |
| |
| idx_highlight = config->idx_default; |
| idx_highlight_prev = 0; |
| |
| visible_max = y_max - 2; |
| |
| if ((UINTN)config->idx_default >= visible_max) |
| idx_first = config->idx_default-1; |
| else |
| idx_first = 0; |
| |
| idx_last = idx_first + visible_max-1; |
| |
| refresh = TRUE; |
| highlight = FALSE; |
| |
| /* length of the longest entry */ |
| line_width = 5; |
| for (i = 0; i < config->entry_count; i++) { |
| UINTN entry_len; |
| |
| entry_len = StrLen(config->entries[i]->title_show); |
| if (line_width < entry_len) |
| line_width = entry_len; |
| } |
| if (line_width > x_max-6) |
| line_width = x_max-6; |
| |
| /* offsets to center the entries on the screen */ |
| x_start = (x_max - (line_width)) / 2; |
| if (config->entry_count < visible_max) |
| y_start = ((visible_max - config->entry_count) / 2) + 1; |
| else |
| y_start = 0; |
| |
| /* menu entries title lines */ |
| lines = AllocatePool(sizeof(CHAR16 *) * config->entry_count); |
| for (i = 0; i < config->entry_count; i++) { |
| UINTN j, k; |
| |
| lines[i] = AllocatePool(((x_max+1) * sizeof(CHAR16))); |
| for (j = 0; j < x_start; j++) |
| lines[i][j] = ' '; |
| |
| for (k = 0; config->entries[i]->title_show[k] != '\0' && j < x_max; j++, k++) |
| lines[i][j] = config->entries[i]->title_show[k]; |
| |
| for (; j < x_max; j++) |
| lines[i][j] = ' '; |
| lines[i][x_max] = '\0'; |
| } |
| |
| status = NULL; |
| clearline = AllocatePool((x_max+1) * sizeof(CHAR16)); |
| for (i = 0; i < x_max; i++) |
| clearline[i] = ' '; |
| clearline[i] = 0; |
| |
| while (!exit) { |
| UINT64 key; |
| |
| if (refresh) { |
| for (i = 0; i < config->entry_count; i++) { |
| if (i < idx_first || i > idx_last) |
| continue; |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + i - idx_first); |
| if (i == idx_highlight) |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, |
| EFI_BLACK|EFI_BACKGROUND_LIGHTGRAY); |
| else |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, |
| EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[i]); |
| if ((INTN)i == config->idx_default_efivar) { |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + i - idx_first); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>"); |
| } |
| } |
| refresh = FALSE; |
| } else if (highlight) { |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + idx_highlight_prev - idx_first); |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[idx_highlight_prev]); |
| if ((INTN)idx_highlight_prev == config->idx_default_efivar) { |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + idx_highlight_prev - idx_first); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>"); |
| } |
| |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + idx_highlight - idx_first); |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_BLACK|EFI_BACKGROUND_LIGHTGRAY); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[idx_highlight]); |
| if ((INTN)idx_highlight == config->idx_default_efivar) { |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + idx_highlight - idx_first); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>"); |
| } |
| highlight = FALSE; |
| } |
| |
| if (timeout_remain > 0) { |
| FreePool(status); |
| status = PoolPrint(L"Boot in %d sec.", (timeout_remain + 5) / 10); |
| } |
| |
| /* print status at last line of screen */ |
| if (status) { |
| UINTN len; |
| UINTN x; |
| |
| /* center line */ |
| len = StrLen(status); |
| if (len < x_max) |
| x = (x_max - len) / 2; |
| else |
| x = 0; |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline + (x_max - x)); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, status); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1 + x + len); |
| } |
| |
| err = console_key_read(&key, wait); |
| if (EFI_ERROR(err)) { |
| /* timeout reached */ |
| if (timeout_remain == 0) { |
| exit = TRUE; |
| break; |
| } |
| |
| /* sleep and update status */ |
| if (timeout_remain > 0) { |
| uefi_call_wrapper(BS->Stall, 1, 100 * 1000); |
| timeout_remain--; |
| continue; |
| } |
| |
| /* timeout disabled, wait for next key */ |
| wait = TRUE; |
| continue; |
| } |
| |
| timeout_remain = -1; |
| |
| /* clear status after keystroke */ |
| if (status) { |
| FreePool(status); |
| status = NULL; |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1); |
| } |
| |
| idx_highlight_prev = idx_highlight; |
| |
| switch (key) { |
| case KEYPRESS(0, SCAN_UP, 0): |
| case KEYPRESS(0, 0, 'k'): |
| if (idx_highlight > 0) |
| idx_highlight--; |
| break; |
| |
| case KEYPRESS(0, SCAN_DOWN, 0): |
| case KEYPRESS(0, 0, 'j'): |
| if (idx_highlight < config->entry_count-1) |
| idx_highlight++; |
| break; |
| |
| case KEYPRESS(0, SCAN_HOME, 0): |
| case KEYPRESS(EFI_ALT_PRESSED, 0, '<'): |
| if (idx_highlight > 0) { |
| refresh = TRUE; |
| idx_highlight = 0; |
| } |
| break; |
| |
| case KEYPRESS(0, SCAN_END, 0): |
| case KEYPRESS(EFI_ALT_PRESSED, 0, '>'): |
| if (idx_highlight < config->entry_count-1) { |
| refresh = TRUE; |
| idx_highlight = config->entry_count-1; |
| } |
| break; |
| |
| case KEYPRESS(0, SCAN_PAGE_UP, 0): |
| if (idx_highlight > visible_max) |
| idx_highlight -= visible_max; |
| else |
| idx_highlight = 0; |
| break; |
| |
| case KEYPRESS(0, SCAN_PAGE_DOWN, 0): |
| idx_highlight += visible_max; |
| if (idx_highlight > config->entry_count-1) |
| idx_highlight = config->entry_count-1; |
| break; |
| |
| case KEYPRESS(0, 0, CHAR_LINEFEED): |
| case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN): |
| exit = TRUE; |
| break; |
| |
| case KEYPRESS(0, SCAN_F1, 0): |
| case KEYPRESS(0, 0, 'h'): |
| case KEYPRESS(0, 0, '?'): |
| status = StrDuplicate(L"(d)efault, (t/T)timeout, (e)dit, (v)ersion (Q)uit (P)rint (h)elp"); |
| break; |
| |
| case KEYPRESS(0, 0, 'Q'): |
| exit = TRUE; |
| run = FALSE; |
| break; |
| |
| case KEYPRESS(0, 0, 'd'): |
| if (config->idx_default_efivar != (INTN)idx_highlight) { |
| /* store the selected entry in a persistent EFI variable */ |
| efivar_set(L"LoaderEntryDefault", config->entries[idx_highlight]->id, TRUE); |
| config->idx_default_efivar = idx_highlight; |
| status = StrDuplicate(L"Default boot entry selected."); |
| } else { |
| /* clear the default entry EFI variable */ |
| efivar_set(L"LoaderEntryDefault", NULL, TRUE); |
| config->idx_default_efivar = -1; |
| status = StrDuplicate(L"Default boot entry cleared."); |
| } |
| refresh = TRUE; |
| break; |
| |
| case KEYPRESS(0, 0, '-'): |
| case KEYPRESS(0, 0, 'T'): |
| if (config->timeout_sec_efivar > 0) { |
| config->timeout_sec_efivar--; |
| efivar_set_int(L"LoaderConfigTimeout", config->timeout_sec_efivar, TRUE); |
| if (config->timeout_sec_efivar > 0) |
| status = PoolPrint(L"Menu timeout set to %d sec.", config->timeout_sec_efivar); |
| else |
| status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu."); |
| } else if (config->timeout_sec_efivar <= 0){ |
| config->timeout_sec_efivar = -1; |
| efivar_set(L"LoaderConfigTimeout", NULL, TRUE); |
| if (config->timeout_sec_config > 0) |
| status = PoolPrint(L"Menu timeout of %d sec is defined by configuration file.", |
| config->timeout_sec_config); |
| else |
| status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu."); |
| } |
| break; |
| |
| case KEYPRESS(0, 0, '+'): |
| case KEYPRESS(0, 0, 't'): |
| if (config->timeout_sec_efivar == -1 && config->timeout_sec_config == 0) |
| config->timeout_sec_efivar++; |
| config->timeout_sec_efivar++; |
| efivar_set_int(L"LoaderConfigTimeout", config->timeout_sec_efivar, TRUE); |
| if (config->timeout_sec_efivar > 0) |
| status = PoolPrint(L"Menu timeout set to %d sec.", |
| config->timeout_sec_efivar); |
| else |
| status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu."); |
| break; |
| |
| case KEYPRESS(0, 0, 'e'): |
| /* only the options of configured entries can be edited */ |
| if (!config->editor || config->entries[idx_highlight]->type == LOADER_UNDEFINED) |
| break; |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1); |
| if (line_edit(config->entries[idx_highlight]->options, &config->options_edit, x_max-1, y_max-1)) |
| exit = TRUE; |
| uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1); |
| uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1); |
| break; |
| |
| case KEYPRESS(0, 0, 'v'): |
| status = PoolPrint(L"systemd-boot " GIT_VERSION " (" EFI_MACHINE_TYPE_NAME "), UEFI Specification %d.%02d, Vendor %s %d.%02d", |
| ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff, |
| ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); |
| break; |
| |
| case KEYPRESS(0, 0, 'P'): |
| print_status(config, loaded_image_path); |
| refresh = TRUE; |
| break; |
| |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'l'): |
| case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('l')): |
| refresh = TRUE; |
| break; |
| |
| default: |
| /* jump with a hotkey directly to a matching entry */ |
| idx = entry_lookup_key(config, idx_highlight+1, KEYCHAR(key)); |
| if (idx < 0) |
| break; |
| idx_highlight = idx; |
| refresh = TRUE; |
| } |
| |
| if (idx_highlight > idx_last) { |
| idx_last = idx_highlight; |
| idx_first = 1 + idx_highlight - visible_max; |
| refresh = TRUE; |
| } else if (idx_highlight < idx_first) { |
| idx_first = idx_highlight; |
| idx_last = idx_highlight + visible_max-1; |
| refresh = TRUE; |
| } |
| |
| if (!refresh && idx_highlight != idx_highlight_prev) |
| highlight = TRUE; |
| } |
| |
| *chosen_entry = config->entries[idx_highlight]; |
| |
| for (i = 0; i < config->entry_count; i++) |
| FreePool(lines[i]); |
| FreePool(lines); |
| FreePool(clearline); |
| |
| uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_WHITE|EFI_BACKGROUND_BLACK); |
| uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); |
| return run; |
| } |
| |
| static VOID config_add_entry(Config *config, ConfigEntry *entry) { |
| if ((config->entry_count & 15) == 0) { |
| UINTN i; |
| |
| i = config->entry_count + 16; |
| if (config->entry_count == 0) |
| config->entries = AllocatePool(sizeof(VOID *) * i); |
| else |
| config->entries = ReallocatePool(config->entries, |
| sizeof(VOID *) * config->entry_count, sizeof(VOID *) * i); |
| } |
| config->entries[config->entry_count++] = entry; |
| } |
| |
| static VOID config_entry_free(ConfigEntry *entry) { |
| if (!entry) |
| return; |
| |
| FreePool(entry->id); |
| FreePool(entry->title_show); |
| FreePool(entry->title); |
| FreePool(entry->version); |
| FreePool(entry->machine_id); |
| FreePool(entry->loader); |
| FreePool(entry->options); |
| FreePool(entry->path); |
| FreePool(entry->current_name); |
| FreePool(entry->next_name); |
| FreePool(entry); |
| } |
| |
| static BOOLEAN is_digit(CHAR16 c) { |
| return (c >= '0') && (c <= '9'); |
| } |
| |
| static UINTN c_order(CHAR16 c) { |
| if (c == '\0') |
| return 0; |
| if (is_digit(c)) |
| return 0; |
| else if ((c >= 'a') && (c <= 'z')) |
| return c; |
| else |
| return c + 0x10000; |
| } |
| |
| static INTN str_verscmp(CHAR16 *s1, CHAR16 *s2) { |
| CHAR16 *os1 = s1; |
| CHAR16 *os2 = s2; |
| |
| while (*s1 || *s2) { |
| INTN first; |
| |
| while ((*s1 && !is_digit(*s1)) || (*s2 && !is_digit(*s2))) { |
| INTN order; |
| |
| order = c_order(*s1) - c_order(*s2); |
| if (order != 0) |
| return order; |
| s1++; |
| s2++; |
| } |
| |
| while (*s1 == '0') |
| s1++; |
| while (*s2 == '0') |
| s2++; |
| |
| first = 0; |
| while (is_digit(*s1) && is_digit(*s2)) { |
| if (first == 0) |
| first = *s1 - *s2; |
| s1++; |
| s2++; |
| } |
| |
| if (is_digit(*s1)) |
| return 1; |
| if (is_digit(*s2)) |
| return -1; |
| |
| if (first != 0) |
| return first; |
| } |
| |
| return StrCmp(os1, os2); |
| } |
| |
| static CHAR8 *line_get_key_value( |
| CHAR8 *content, |
| CHAR8 *sep, |
| UINTN *pos, |
| CHAR8 **key_ret, |
| CHAR8 **value_ret) { |
| |
| CHAR8 *line; |
| UINTN linelen; |
| CHAR8 *value; |
| |
| skip: |
| line = content + *pos; |
| if (*line == '\0') |
| return NULL; |
| |
| linelen = 0; |
| while (line[linelen] && !strchra((CHAR8 *)"\n\r", line[linelen])) |
| linelen++; |
| |
| /* move pos to next line */ |
| *pos += linelen; |
| if (content[*pos]) |
| (*pos)++; |
| |
| /* empty line */ |
| if (linelen == 0) |
| goto skip; |
| |
| /* terminate line */ |
| line[linelen] = '\0'; |
| |
| /* remove leading whitespace */ |
| while (strchra((CHAR8 *)" \t", *line)) { |
| line++; |
| linelen--; |
| } |
| |
| /* remove trailing whitespace */ |
| while (linelen > 0 && strchra((CHAR8 *)" \t", line[linelen-1])) |
| linelen--; |
| line[linelen] = '\0'; |
| |
| if (*line == '#') |
| goto skip; |
| |
| /* split key/value */ |
| value = line; |
| while (*value && !strchra(sep, *value)) |
| value++; |
| if (*value == '\0') |
| goto skip; |
| *value = '\0'; |
| value++; |
| while (*value && strchra(sep, *value)) |
| value++; |
| |
| /* unquote */ |
| if (value[0] == '"' && line[linelen-1] == '"') { |
| value++; |
| line[linelen-1] = '\0'; |
| } |
| |
| *key_ret = line; |
| *value_ret = value; |
| return line; |
| } |
| |
| static VOID config_defaults_load_from_file(Config *config, CHAR8 *content) { |
| CHAR8 *line; |
| UINTN pos = 0; |
| CHAR8 *key, *value; |
| |
| while ((line = line_get_key_value(content, (CHAR8 *)" \t", &pos, &key, &value))) { |
| if (strcmpa((CHAR8 *)"timeout", key) == 0) { |
| _cleanup_freepool_ CHAR16 *s = NULL; |
| |
| s = stra_to_str(value); |
| config->timeout_sec_config = Atoi(s); |
| config->timeout_sec = config->timeout_sec_config; |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"default", key) == 0) { |
| FreePool(config->entry_default_pattern); |
| config->entry_default_pattern = stra_to_str(value); |
| StrLwr(config->entry_default_pattern); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"editor", key) == 0) { |
| BOOLEAN on; |
| |
| if (EFI_ERROR(parse_boolean(value, &on))) |
| continue; |
| config->editor = on; |
| } |
| |
| if (strcmpa((CHAR8 *)"auto-entries", key) == 0) { |
| BOOLEAN on; |
| |
| if (EFI_ERROR(parse_boolean(value, &on))) |
| continue; |
| config->auto_entries = on; |
| } |
| |
| if (strcmpa((CHAR8 *)"auto-firmware", key) == 0) { |
| BOOLEAN on; |
| |
| if (EFI_ERROR(parse_boolean(value, &on))) |
| continue; |
| config->auto_firmware = on; |
| } |
| |
| if (strcmpa((CHAR8 *)"console-mode", key) == 0) { |
| if (strcmpa((CHAR8 *)"auto", value) == 0) |
| config->console_mode_change = CONSOLE_MODE_AUTO; |
| else if (strcmpa((CHAR8 *)"max", value) == 0) |
| config->console_mode_change = CONSOLE_MODE_MAX; |
| else if (strcmpa((CHAR8 *)"keep", value) == 0) |
| config->console_mode_change = CONSOLE_MODE_KEEP; |
| else { |
| _cleanup_freepool_ CHAR16 *s = NULL; |
| |
| s = stra_to_str(value); |
| config->console_mode = Atoi(s); |
| config->console_mode_change = CONSOLE_MODE_SET; |
| } |
| |
| continue; |
| } |
| } |
| } |
| |
| static VOID config_entry_parse_tries( |
| ConfigEntry *entry, |
| CHAR16 *path, |
| CHAR16 *file, |
| CHAR16 *suffix) { |
| |
| UINTN left = (UINTN) -1, done = (UINTN) -1, factor = 1, i, next_left, next_done; |
| _cleanup_freepool_ CHAR16 *prefix = NULL; |
| |
| /* |
| * Parses a suffix of two counters (one going down, one going up) in the form "+LEFT-DONE" from the end of the |
| * filename (but before the .efi/.conf suffix), where the "-DONE" part is optional and may be left out (in |
| * which case that counter as assumed to be zero, i.e. the missing part is synonymous to "-0"). |
| * |
| * Names we grok, and the series they result in: |
| * |
| * foobar+3.efi → foobar+2-1.efi → foobar+1-2.efi → foobar+0-3.efi → STOP! |
| * foobar+4-0.efi → foobar+3-1.efi → foobar+2-2.efi → foobar+1-3.efi → foobar+0-4.efi → STOP! |
| */ |
| |
| i = StrLen(file); |
| |
| /* Chop off any suffix such as ".conf" or ".efi" */ |
| if (suffix) { |
| UINTN suffix_length; |
| |
| suffix_length = StrLen(suffix); |
| if (i < suffix_length) |
| return; |
| |
| i -= suffix_length; |
| } |
| |
| /* Go backwards through the string and parse everything we encounter */ |
| for (;;) { |
| if (i == 0) |
| return; |
| |
| i--; |
| |
| switch (file[i]) { |
| |
| case '+': |
| if (left == (UINTN) -1) /* didn't read at least one digit for 'left'? */ |
| return; |
| |
| if (done == (UINTN) -1) /* no 'done' counter? If so, it's equivalent to 0 */ |
| done = 0; |
| |
| goto good; |
| |
| case '-': |
| if (left == (UINTN) -1) /* didn't parse any digit yet? */ |
| return; |
| |
| if (done != (UINTN) -1) /* already encountered a dash earlier? */ |
| return; |
| |
| /* So we encountered a dash. This means this counter is of the form +LEFT-DONE. Let's assign |
| * what we already parsed to 'done', and start fresh for the 'left' part. */ |
| |
| done = left; |
| left = (UINTN) -1; |
| factor = 1; |
| break; |
| |
| case '0'...'9': { |
| UINTN new_factor; |
| |
| if (left == (UINTN) -1) |
| left = file[i] - '0'; |
| else { |
| UINTN new_left, digit; |
| |
| digit = file[i] - '0'; |
| if (digit > (UINTN) -1 / factor) /* overflow check */ |
| return; |
| |
| new_left = left + digit * factor; |
| if (new_left < left) /* overflow check */ |
| return; |
| |
| if (new_left == (UINTN) -1) /* don't allow us to be confused */ |
| return; |
| } |
| |
| new_factor = factor * 10; |
| if (new_factor < factor) /* overflow chck */ |
| return; |
| |
| factor = new_factor; |
| break; |
| } |
| |
| default: |
| return; |
| } |
| } |
| |
| good: |
| entry->tries_left = left; |
| entry->tries_done = done; |
| |
| entry->path = StrDuplicate(path); |
| entry->current_name = StrDuplicate(file); |
| |
| next_left = left <= 0 ? 0 : left - 1; |
| next_done = done >= (UINTN) -2 ? (UINTN) -2 : done + 1; |
| |
| prefix = StrDuplicate(file); |
| prefix[i] = 0; |
| |
| entry->next_name = PoolPrint(L"%s+%u-%u%s", prefix, next_left, next_done, suffix ?: L""); |
| } |
| |
| static VOID config_entry_bump_counters( |
| ConfigEntry *entry, |
| EFI_FILE_HANDLE root_dir) { |
| |
| _cleanup_freepool_ CHAR16* old_path = NULL, *new_path = NULL; |
| _cleanup_(FileHandleClosep) EFI_FILE_HANDLE handle = NULL; |
| static EFI_GUID EfiFileInfoGuid = EFI_FILE_INFO_ID; |
| _cleanup_freepool_ EFI_FILE_INFO *file_info = NULL; |
| UINTN file_info_size, a, b; |
| EFI_STATUS r; |
| |
| if (entry->tries_left == (UINTN) -1) |
| return; |
| |
| if (!entry->path || !entry->current_name || !entry->next_name) |
| return; |
| |
| old_path = PoolPrint(L"%s\\%s", entry->path, entry->current_name); |
| |
| r = uefi_call_wrapper(root_dir->Open, 5, root_dir, &handle, old_path, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE, 0ULL); |
| if (EFI_ERROR(r)) |
| return; |
| |
| a = StrLen(entry->current_name); |
| b = StrLen(entry->next_name); |
| |
| file_info_size = OFFSETOF(EFI_FILE_INFO, FileName) + (a > b ? a : b) + 1; |
| |
| for (;;) { |
| file_info = AllocatePool(file_info_size); |
| |
| r = uefi_call_wrapper(handle->GetInfo, 4, handle, &EfiFileInfoGuid, &file_info_size, file_info); |
| if (!EFI_ERROR(r)) |
| break; |
| |
| if (r != EFI_BUFFER_TOO_SMALL || file_info_size * 2 < file_info_size) { |
| Print(L"\nFailed to get file info for '%s': %r\n", old_path, r); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| return; |
| } |
| |
| file_info_size *= 2; |
| FreePool(file_info); |
| } |
| |
| /* And rename the file */ |
| StrCpy(file_info->FileName, entry->next_name); |
| r = uefi_call_wrapper(handle->SetInfo, 4, handle, &EfiFileInfoGuid, file_info_size, file_info); |
| if (EFI_ERROR(r)) { |
| Print(L"\nFailed to rename '%s' to '%s', ignoring: %r\n", old_path, entry->next_name, r); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| return; |
| } |
| |
| /* Flush everything to disk, just in case… */ |
| (void) uefi_call_wrapper(handle->Flush, 1, handle); |
| |
| /* Let's tell the OS that we renamed this file, so that it knows what to rename to the counter-less name on |
| * success */ |
| new_path = PoolPrint(L"%s\\%s", entry->path, entry->next_name); |
| efivar_set(L"LoaderBootCountPath", new_path, FALSE); |
| |
| /* If the file we just renamed is the loader path, then let's update that. */ |
| if (StrCmp(entry->loader, old_path) == 0) { |
| FreePool(entry->loader); |
| entry->loader = new_path; |
| new_path = NULL; |
| } |
| } |
| |
| static VOID config_entry_add_from_file( |
| Config *config, |
| EFI_HANDLE *device, |
| CHAR16 *path, |
| CHAR16 *file, |
| CHAR8 *content, |
| CHAR16 *loaded_image_path) { |
| |
| ConfigEntry *entry; |
| CHAR8 *line; |
| UINTN pos = 0; |
| CHAR8 *key, *value; |
| UINTN len; |
| _cleanup_freepool_ CHAR16 *initrd = NULL; |
| |
| entry = AllocatePool(sizeof(ConfigEntry)); |
| |
| *entry = (ConfigEntry) { |
| .tries_done = (UINTN) -1, |
| .tries_left = (UINTN) -1, |
| }; |
| |
| while ((line = line_get_key_value(content, (CHAR8 *)" \t", &pos, &key, &value))) { |
| if (strcmpa((CHAR8 *)"title", key) == 0) { |
| FreePool(entry->title); |
| entry->title = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"version", key) == 0) { |
| FreePool(entry->version); |
| entry->version = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"machine-id", key) == 0) { |
| FreePool(entry->machine_id); |
| entry->machine_id = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"linux", key) == 0) { |
| FreePool(entry->loader); |
| entry->type = LOADER_LINUX; |
| entry->loader = stra_to_path(value); |
| entry->key = 'l'; |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"efi", key) == 0) { |
| entry->type = LOADER_EFI; |
| FreePool(entry->loader); |
| entry->loader = stra_to_path(value); |
| |
| /* do not add an entry for ourselves */ |
| if (StriCmp(entry->loader, loaded_image_path) == 0) { |
| entry->type = LOADER_UNDEFINED; |
| break; |
| } |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"architecture", key) == 0) { |
| /* do not add an entry for an EFI image of architecture not matching with that of the image */ |
| if (strcmpa((CHAR8 *)EFI_MACHINE_TYPE_NAME, value) != 0) { |
| entry->type = LOADER_UNDEFINED; |
| break; |
| } |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"initrd", key) == 0) { |
| _cleanup_freepool_ CHAR16 *new = NULL; |
| |
| new = stra_to_path(value); |
| if (initrd) { |
| CHAR16 *s; |
| |
| s = PoolPrint(L"%s initrd=%s", initrd, new); |
| FreePool(initrd); |
| initrd = s; |
| } else |
| initrd = PoolPrint(L"initrd=%s", new); |
| |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"options", key) == 0) { |
| _cleanup_freepool_ CHAR16 *new = NULL; |
| |
| new = stra_to_str(value); |
| if (entry->options) { |
| CHAR16 *s; |
| |
| s = PoolPrint(L"%s %s", entry->options, new); |
| FreePool(entry->options); |
| entry->options = s; |
| } else { |
| entry->options = new; |
| new = NULL; |
| } |
| |
| continue; |
| } |
| } |
| |
| if (entry->type == LOADER_UNDEFINED) { |
| config_entry_free(entry); |
| return; |
| } |
| |
| /* add initrd= to options */ |
| if (entry->type == LOADER_LINUX && initrd) { |
| if (entry->options) { |
| CHAR16 *s; |
| |
| s = PoolPrint(L"%s %s", initrd, entry->options); |
| FreePool(entry->options); |
| entry->options = s; |
| } else { |
| entry->options = initrd; |
| initrd = NULL; |
| } |
| } |
| |
| entry->device = device; |
| entry->id = StrDuplicate(file); |
| len = StrLen(entry->id); |
| /* remove ".conf" */ |
| if (len > 5) |
| entry->id[len - 5] = '\0'; |
| StrLwr(entry->id); |
| |
| config_add_entry(config, entry); |
| |
| config_entry_parse_tries(entry, path, file, L".conf"); |
| } |
| |
| static VOID config_load_defaults(Config *config, EFI_FILE *root_dir) { |
| _cleanup_freepool_ CHAR8 *content = NULL; |
| UINTN sec; |
| EFI_STATUS err; |
| |
| *config = (Config) { |
| .editor = TRUE, |
| .auto_entries = TRUE, |
| .auto_firmware = TRUE, |
| }; |
| |
| err = file_read(root_dir, L"\\loader\\loader.conf", 0, 0, &content, NULL); |
| if (!EFI_ERROR(err)) |
| config_defaults_load_from_file(config, content); |
| |
| err = efivar_get_int(L"LoaderConfigTimeout", &sec); |
| if (!EFI_ERROR(err)) { |
| config->timeout_sec_efivar = sec > INTN_MAX ? INTN_MAX : sec; |
| config->timeout_sec = sec; |
| } else |
| config->timeout_sec_efivar = -1; |
| |
| err = efivar_get_int(L"LoaderConfigTimeoutOneShot", &sec); |
| if (!EFI_ERROR(err)) { |
| /* Unset variable now, after all it's "one shot". */ |
| (void) efivar_set(L"LoaderConfigTimeoutOneShot", NULL, TRUE); |
| |
| config->timeout_sec = sec; |
| config->force_menu = TRUE; /* force the menu when this is set */ |
| } |
| } |
| |
| static VOID config_load_entries( |
| Config *config, |
| EFI_HANDLE *device, |
| EFI_FILE *root_dir, |
| CHAR16 *loaded_image_path) { |
| |
| EFI_FILE_HANDLE entries_dir; |
| EFI_STATUS err; |
| |
| err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &entries_dir, L"\\loader\\entries", EFI_FILE_MODE_READ, 0ULL); |
| if (!EFI_ERROR(err)) { |
| for (;;) { |
| CHAR16 buf[256]; |
| UINTN bufsize; |
| EFI_FILE_INFO *f; |
| _cleanup_freepool_ CHAR8 *content = NULL; |
| UINTN len; |
| |
| bufsize = sizeof(buf); |
| err = uefi_call_wrapper(entries_dir->Read, 3, entries_dir, &bufsize, buf); |
| if (bufsize == 0 || EFI_ERROR(err)) |
| break; |
| |
| f = (EFI_FILE_INFO *) buf; |
| if (f->FileName[0] == '.') |
| continue; |
| if (f->Attribute & EFI_FILE_DIRECTORY) |
| continue; |
| |
| len = StrLen(f->FileName); |
| if (len < 6) |
| continue; |
| if (StriCmp(f->FileName + len - 5, L".conf") != 0) |
| continue; |
| if (StrnCmp(f->FileName, L"auto-", 5) == 0) |
| continue; |
| |
| err = file_read(entries_dir, f->FileName, 0, 0, &content, NULL); |
| if (!EFI_ERROR(err)) |
| config_entry_add_from_file(config, device, L"\\loader\\entries", f->FileName, content, loaded_image_path); |
| } |
| uefi_call_wrapper(entries_dir->Close, 1, entries_dir); |
| } |
| } |
| |
| static INTN config_entry_compare(ConfigEntry *a, ConfigEntry *b) { |
| INTN r; |
| |
| /* Order entries that have no tries left to the end of the list */ |
| if (a->tries_left != 0 && b->tries_left == 0) |
| return -1; |
| if (a->tries_left == 0 && b->tries_left != 0) |
| return 1; |
| |
| r = str_verscmp(a->id, b->id); |
| if (r != 0) |
| return r; |
| |
| if (a->tries_left == (UINTN) -1 || |
| b->tries_left == (UINTN) -1) |
| return 0; |
| |
| /* If both items have boot counting, and otherwise are identical, put the entry with more tries left first */ |
| if (a->tries_left > b->tries_left) |
| return -1; |
| if (a->tries_left < b->tries_left) |
| return 1; |
| |
| /* If they have the same number of tries left, then let the one win which was tried fewer times so far */ |
| if (a->tries_done < b->tries_done) |
| return -1; |
| if (a->tries_done > b->tries_done) |
| return 1; |
| |
| return 0; |
| } |
| |
| static VOID config_sort_entries(Config *config) { |
| UINTN i; |
| |
| for (i = 1; i < config->entry_count; i++) { |
| BOOLEAN more; |
| UINTN k; |
| |
| more = FALSE; |
| for (k = 0; k < config->entry_count - i; k++) { |
| ConfigEntry *entry; |
| |
| if (config_entry_compare(config->entries[k], config->entries[k+1]) <= 0) |
| continue; |
| |
| entry = config->entries[k]; |
| config->entries[k] = config->entries[k+1]; |
| config->entries[k+1] = entry; |
| more = TRUE; |
| } |
| if (!more) |
| break; |
| } |
| } |
| |
| static INTN config_entry_find(Config *config, CHAR16 *id) { |
| UINTN i; |
| |
| for (i = 0; i < config->entry_count; i++) |
| if (StrCmp(config->entries[i]->id, id) == 0) |
| return (INTN) i; |
| |
| return -1; |
| } |
| |
| static VOID config_default_entry_select(Config *config) { |
| _cleanup_freepool_ CHAR16 *entry_oneshot = NULL, *entry_default = NULL; |
| EFI_STATUS err; |
| INTN i; |
| |
| /* |
| * The EFI variable to specify a boot entry for the next, and only the |
| * next reboot. The variable is always cleared directly after it is read. |
| */ |
| err = efivar_get(L"LoaderEntryOneShot", &entry_oneshot); |
| if (!EFI_ERROR(err)) { |
| |
| config->entry_oneshot = StrDuplicate(entry_oneshot); |
| efivar_set(L"LoaderEntryOneShot", NULL, TRUE); |
| |
| i = config_entry_find(config, entry_oneshot); |
| if (i >= 0) { |
| config->idx_default = i; |
| return; |
| } |
| } |
| |
| /* |
| * The EFI variable to select the default boot entry overrides the |
| * configured pattern. The variable can be set and cleared by pressing |
| * the 'd' key in the loader selection menu, the entry is marked with |
| * an '*'. |
| */ |
| err = efivar_get(L"LoaderEntryDefault", &entry_default); |
| if (!EFI_ERROR(err)) { |
| |
| i = config_entry_find(config, entry_default); |
| if (i >= 0) { |
| config->idx_default = i; |
| config->idx_default_efivar = i; |
| return; |
| } |
| } |
| config->idx_default_efivar = -1; |
| |
| if (config->entry_count == 0) |
| return; |
| |
| /* |
| * Match the pattern from the end of the list to the start, find last |
| * entry (largest number) matching the given pattern. |
| */ |
| if (config->entry_default_pattern) { |
| i = config->entry_count; |
| while (i--) { |
| if (config->entries[i]->no_autoselect) |
| continue; |
| if (MetaiMatch(config->entries[i]->id, config->entry_default_pattern)) { |
| config->idx_default = i; |
| return; |
| } |
| } |
| } |
| |
| /* select the last suitable entry */ |
| i = config->entry_count; |
| while (i--) { |
| if (config->entries[i]->no_autoselect) |
| continue; |
| config->idx_default = i; |
| return; |
| } |
| |
| /* no entry found */ |
| config->idx_default = -1; |
| } |
| |
| static BOOLEAN find_nonunique(ConfigEntry **entries, UINTN entry_count) { |
| BOOLEAN non_unique = FALSE; |
| UINTN i, k; |
| |
| for (i = 0; i < entry_count; i++) |
| entries[i]->non_unique = FALSE; |
| |
| for (i = 0; i < entry_count; i++) |
| for (k = 0; k < entry_count; k++) { |
| if (i == k) |
| continue; |
| if (StrCmp(entries[i]->title_show, entries[k]->title_show) != 0) |
| continue; |
| |
| non_unique = entries[i]->non_unique = entries[k]->non_unique = TRUE; |
| } |
| |
| return non_unique; |
| } |
| |
| /* generate a unique title, avoiding non-distinguishable menu entries */ |
| static VOID config_title_generate(Config *config) { |
| UINTN i; |
| |
| /* set title */ |
| for (i = 0; i < config->entry_count; i++) { |
| CHAR16 *title; |
| |
| FreePool(config->entries[i]->title_show); |
| title = config->entries[i]->title; |
| if (!title) |
| title = config->entries[i]->id; |
| config->entries[i]->title_show = StrDuplicate(title); |
| } |
| |
| if (!find_nonunique(config->entries, config->entry_count)) |
| return; |
| |
| /* add version to non-unique titles */ |
| for (i = 0; i < config->entry_count; i++) { |
| CHAR16 *s; |
| |
| if (!config->entries[i]->non_unique) |
| continue; |
| if (!config->entries[i]->version) |
| continue; |
| |
| s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, config->entries[i]->version); |
| FreePool(config->entries[i]->title_show); |
| config->entries[i]->title_show = s; |
| } |
| |
| if (!find_nonunique(config->entries, config->entry_count)) |
| return; |
| |
| /* add machine-id to non-unique titles */ |
| for (i = 0; i < config->entry_count; i++) { |
| CHAR16 *s; |
| _cleanup_freepool_ CHAR16 *m = NULL; |
| |
| if (!config->entries[i]->non_unique) |
| continue; |
| if (!config->entries[i]->machine_id) |
| continue; |
| |
| m = StrDuplicate(config->entries[i]->machine_id); |
| m[8] = '\0'; |
| s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, m); |
| FreePool(config->entries[i]->title_show); |
| config->entries[i]->title_show = s; |
| } |
| |
| if (!find_nonunique(config->entries, config->entry_count)) |
| return; |
| |
| /* add file name to non-unique titles */ |
| for (i = 0; i < config->entry_count; i++) { |
| CHAR16 *s; |
| |
| if (!config->entries[i]->non_unique) |
| continue; |
| s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, config->entries[i]->id); |
| FreePool(config->entries[i]->title_show); |
| config->entries[i]->title_show = s; |
| config->entries[i]->non_unique = FALSE; |
| } |
| } |
| |
| static BOOLEAN config_entry_add_call( |
| Config *config, |
| CHAR16 *id, |
| CHAR16 *title, |
| EFI_STATUS (*call)(VOID)) { |
| |
| ConfigEntry *entry; |
| |
| entry = AllocatePool(sizeof(ConfigEntry)); |
| *entry = (ConfigEntry) { |
| .id = StrDuplicate(id), |
| .title = StrDuplicate(title), |
| .call = call, |
| .no_autoselect = TRUE, |
| .tries_done = (UINTN) -1, |
| .tries_left = (UINTN) -1, |
| }; |
| |
| config_add_entry(config, entry); |
| return TRUE; |
| } |
| |
| static ConfigEntry *config_entry_add_loader( |
| Config *config, |
| EFI_HANDLE *device, |
| enum loader_type type, |
| CHAR16 *id, |
| CHAR16 key, |
| CHAR16 *title, |
| CHAR16 *loader) { |
| |
| ConfigEntry *entry; |
| |
| entry = AllocatePool(sizeof(ConfigEntry)); |
| *entry = (ConfigEntry) { |
| .type = type, |
| .title = StrDuplicate(title), |
| .device = device, |
| .loader = StrDuplicate(loader), |
| .id = StrDuplicate(id), |
| .key = key, |
| .tries_done = (UINTN) -1, |
| .tries_left = (UINTN) -1, |
| }; |
| |
| StrLwr(entry->id); |
| |
| config_add_entry(config, entry); |
| return entry; |
| } |
| |
| static BOOLEAN config_entry_add_loader_auto( |
| Config *config, |
| EFI_HANDLE *device, |
| EFI_FILE *root_dir, |
| CHAR16 *loaded_image_path, |
| CHAR16 *id, |
| CHAR16 key, |
| CHAR16 *title, |
| CHAR16 *loader) { |
| |
| EFI_FILE_HANDLE handle; |
| ConfigEntry *entry; |
| EFI_STATUS err; |
| |
| if (!config->auto_entries) |
| return FALSE; |
| |
| /* do not add an entry for ourselves */ |
| if (loaded_image_path) { |
| UINTN len; |
| _cleanup_freepool_ CHAR8 *content = NULL; |
| |
| if (StriCmp(loader, loaded_image_path) == 0) |
| return FALSE; |
| |
| /* look for systemd-boot magic string */ |
| err = file_read(root_dir, loader, 0, 100*1024, &content, &len); |
| if (!EFI_ERROR(err)) { |
| CHAR8 *start = content; |
| CHAR8 *last = content + len - sizeof(magic) - 1; |
| |
| for (; start <= last; start++) |
| if (start[0] == magic[0] && CompareMem(start, magic, sizeof(magic) - 1) == 0) |
| return FALSE; |
| } |
| } |
| |
| /* check existence */ |
| err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &handle, loader, EFI_FILE_MODE_READ, 0ULL); |
| if (EFI_ERROR(err)) |
| return FALSE; |
| uefi_call_wrapper(handle->Close, 1, handle); |
| |
| entry = config_entry_add_loader(config, device, LOADER_UNDEFINED, id, key, title, loader); |
| if (!entry) |
| return FALSE; |
| |
| /* do not boot right away into auto-detected entries */ |
| entry->no_autoselect = TRUE; |
| |
| return TRUE; |
| } |
| |
| static VOID config_entry_add_osx(Config *config) { |
| EFI_STATUS err; |
| UINTN handle_count = 0; |
| _cleanup_freepool_ EFI_HANDLE *handles = NULL; |
| |
| if (!config->auto_entries) |
| return; |
| |
| err = LibLocateHandle(ByProtocol, &FileSystemProtocol, NULL, &handle_count, &handles); |
| if (!EFI_ERROR(err)) { |
| UINTN i; |
| |
| for (i = 0; i < handle_count; i++) { |
| EFI_FILE *root; |
| BOOLEAN found; |
| |
| root = LibOpenRoot(handles[i]); |
| if (!root) |
| continue; |
| found = config_entry_add_loader_auto(config, handles[i], root, NULL, L"auto-osx", 'a', L"macOS", |
| L"\\System\\Library\\CoreServices\\boot.efi"); |
| uefi_call_wrapper(root->Close, 1, root); |
| if (found) |
| break; |
| } |
| } |
| } |
| |
| static VOID config_entry_add_linux( |
| Config *config, |
| EFI_LOADED_IMAGE *loaded_image, |
| EFI_FILE *root_dir) { |
| |
| EFI_FILE_HANDLE linux_dir; |
| EFI_STATUS err; |
| ConfigEntry *entry; |
| |
| err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &linux_dir, L"\\EFI\\Linux", EFI_FILE_MODE_READ, 0ULL); |
| if (EFI_ERROR(err)) |
| return; |
| |
| for (;;) { |
| CHAR16 buf[256]; |
| UINTN bufsize = sizeof buf; |
| EFI_FILE_INFO *f; |
| CHAR8 *sections[] = { |
| (UINT8 *)".osrel", |
| (UINT8 *)".cmdline", |
| NULL |
| }; |
| UINTN offs[ELEMENTSOF(sections)-1] = {}; |
| UINTN szs[ELEMENTSOF(sections)-1] = {}; |
| UINTN addrs[ELEMENTSOF(sections)-1] = {}; |
| CHAR8 *content = NULL; |
| UINTN len; |
| CHAR8 *line; |
| UINTN pos = 0; |
| CHAR8 *key, *value; |
| CHAR16 *os_name = NULL; |
| CHAR16 *os_id = NULL; |
| CHAR16 *os_version = NULL; |
| CHAR16 *os_build = NULL; |
| |
| err = uefi_call_wrapper(linux_dir->Read, 3, linux_dir, &bufsize, buf); |
| if (bufsize == 0 || EFI_ERROR(err)) |
| break; |
| |
| f = (EFI_FILE_INFO *) buf; |
| if (f->FileName[0] == '.') |
| continue; |
| if (f->Attribute & EFI_FILE_DIRECTORY) |
| continue; |
| len = StrLen(f->FileName); |
| if (len < 5) |
| continue; |
| if (StriCmp(f->FileName + len - 4, L".efi") != 0) |
| continue; |
| |
| /* look for .osrel and .cmdline sections in the .efi binary */ |
| err = pe_file_locate_sections(linux_dir, f->FileName, sections, addrs, offs, szs); |
| if (EFI_ERROR(err)) |
| continue; |
| |
| err = file_read(linux_dir, f->FileName, offs[0], szs[0], &content, NULL); |
| if (EFI_ERROR(err)) |
| continue; |
| |
| /* read properties from the embedded os-release file */ |
| while ((line = line_get_key_value(content, (CHAR8 *)"=", &pos, &key, &value))) { |
| if (strcmpa((CHAR8 *)"PRETTY_NAME", key) == 0) { |
| FreePool(os_name); |
| os_name = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"ID", key) == 0) { |
| FreePool(os_id); |
| os_id = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"VERSION", key) == 0) { |
| FreePool(os_version); |
| os_version = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"BUILD_ID", key) == 0) { |
| FreePool(os_build); |
| os_build = stra_to_str(value); |
| continue; |
| } |
| } |
| |
| if (os_name && os_id && (os_version || os_build)) { |
| _cleanup_freepool_ CHAR16 *conf = NULL, *path = NULL; |
| |
| conf = PoolPrint(L"%s-%s", os_id, os_version ? : os_build); |
| path = PoolPrint(L"\\EFI\\Linux\\%s", f->FileName); |
| |
| entry = config_entry_add_loader(config, loaded_image->DeviceHandle, LOADER_LINUX, conf, 'l', os_name, path); |
| |
| FreePool(content); |
| content = NULL; |
| |
| /* read the embedded cmdline file */ |
| err = file_read(linux_dir, f->FileName, offs[1], szs[1], &content, NULL); |
| if (!EFI_ERROR(err)) { |
| |
| /* chomp the newline */ |
| if (content[szs[1]-1] == '\n') |
| content[szs[1]-1] = '\0'; |
| |
| entry->options = stra_to_str(content); |
| } |
| |
| config_entry_parse_tries(entry, L"\\EFI\\Linux", f->FileName, L".efi"); |
| } |
| |
| FreePool(os_name); |
| FreePool(os_id); |
| FreePool(os_version); |
| FreePool(os_build); |
| FreePool(content); |
| } |
| |
| uefi_call_wrapper(linux_dir->Close, 1, linux_dir); |
| } |
| |
| static EFI_STATUS image_start( |
| EFI_HANDLE parent_image, |
| const Config *config, |
| const ConfigEntry *entry) { |
| |
| EFI_HANDLE image; |
| _cleanup_freepool_ EFI_DEVICE_PATH *path = NULL; |
| CHAR16 *options; |
| EFI_STATUS err; |
| |
| path = FileDevicePath(entry->device, entry->loader); |
| if (!path) { |
| Print(L"Error getting device path."); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| return EFI_INVALID_PARAMETER; |
| } |
| |
| err = uefi_call_wrapper(BS->LoadImage, 6, FALSE, parent_image, path, NULL, 0, &image); |
| if (EFI_ERROR(err)) { |
| Print(L"Error loading %s: %r", entry->loader, err); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| return err; |
| } |
| |
| if (config->options_edit) |
| options = config->options_edit; |
| else if (entry->options) |
| options = entry->options; |
| else |
| options = NULL; |
| if (options) { |
| EFI_LOADED_IMAGE *loaded_image; |
| |
| err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image, |
| parent_image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); |
| if (EFI_ERROR(err)) { |
| Print(L"Error getting LoadedImageProtocol handle: %r", err); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| goto out_unload; |
| } |
| loaded_image->LoadOptions = options; |
| loaded_image->LoadOptionsSize = (StrLen(loaded_image->LoadOptions)+1) * sizeof(CHAR16); |
| |
| #if ENABLE_TPM |
| /* Try to log any options to the TPM, especially to catch manually edited options */ |
| err = tpm_log_event(SD_TPM_PCR, |
| (EFI_PHYSICAL_ADDRESS) (UINTN) 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, 200 * 1000); |
| } |
| #endif |
| } |
| |
| efivar_set_time_usec(L"LoaderTimeExecUSec", 0); |
| err = uefi_call_wrapper(BS->StartImage, 3, image, NULL, NULL); |
| out_unload: |
| uefi_call_wrapper(BS->UnloadImage, 1, image); |
| return err; |
| } |
| |
| static EFI_STATUS reboot_into_firmware(VOID) { |
| _cleanup_freepool_ CHAR8 *b = NULL; |
| UINTN size; |
| UINT64 osind; |
| EFI_STATUS err; |
| |
| osind = EFI_OS_INDICATIONS_BOOT_TO_FW_UI; |
| |
| err = efivar_get_raw(&global_guid, L"OsIndications", &b, &size); |
| if (!EFI_ERROR(err)) |
| osind |= (UINT64)*b; |
| |
| err = efivar_set_raw(&global_guid, L"OsIndications", &osind, sizeof(UINT64), TRUE); |
| if (EFI_ERROR(err)) |
| return err; |
| |
| err = uefi_call_wrapper(RT->ResetSystem, 4, EfiResetCold, EFI_SUCCESS, 0, NULL); |
| Print(L"Error calling ResetSystem: %r", err); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| return err; |
| } |
| |
| static VOID config_free(Config *config) { |
| UINTN i; |
| |
| for (i = 0; i < config->entry_count; i++) |
| config_entry_free(config->entries[i]); |
| FreePool(config->entries); |
| FreePool(config->entry_default_pattern); |
| FreePool(config->options_edit); |
| FreePool(config->entry_oneshot); |
| } |
| |
| static VOID config_write_entries_to_variable(Config *config) { |
| _cleanup_freepool_ CHAR16 *buffer = NULL; |
| UINTN i, sz = 0; |
| CHAR16 *p; |
| |
| for (i = 0; i < config->entry_count; i++) |
| sz += StrLen(config->entries[i]->id) + 1; |
| |
| p = buffer = AllocatePool(sz * sizeof(CHAR16)); |
| |
| for (i = 0; i < config->entry_count; i++) { |
| UINTN l; |
| |
| l = StrLen(config->entries[i]->id) + 1; |
| CopyMem(p, config->entries[i]->id, l * sizeof(CHAR16)); |
| |
| p += l; |
| } |
| |
| /* Store the full list of discovered entries. */ |
| (void) efivar_set_raw(&loader_guid, L"LoaderEntries", buffer, (UINT8*) p - (UINT8*) buffer, FALSE); |
| } |
| |
| EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) { |
| static const UINT64 loader_features = |
| (1ULL << 0) | /* I honour the LoaderConfigTimeout variable */ |
| (1ULL << 1) | /* I honour the LoaderConfigTimeoutOneShot variable */ |
| (1ULL << 2) | /* I honour the LoaderEntryDefault variable */ |
| (1ULL << 3) | /* I honour the LoaderEntryOneShot variable */ |
| (1ULL << 4) | /* I support boot counting */ |
| 0; |
| |
| _cleanup_freepool_ CHAR16 *infostr = NULL, *typestr = NULL; |
| CHAR8 *b; |
| UINTN size; |
| EFI_LOADED_IMAGE *loaded_image; |
| EFI_FILE *root_dir; |
| CHAR16 *loaded_image_path; |
| EFI_STATUS err; |
| Config config; |
| UINT64 init_usec; |
| BOOLEAN menu = FALSE; |
| CHAR16 uuid[37]; |
| |
| InitializeLib(image, sys_table); |
| init_usec = time_usec(); |
| efivar_set_time_usec(L"LoaderTimeInitUSec", init_usec); |
| efivar_set(L"LoaderInfo", L"systemd-boot " GIT_VERSION, FALSE); |
| |
| infostr = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); |
| efivar_set(L"LoaderFirmwareInfo", infostr, FALSE); |
| |
| typestr = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); |
| efivar_set(L"LoaderFirmwareType", typestr, FALSE); |
| |
| (void) efivar_set_raw(&loader_guid, L"LoaderFeatures", &loader_features, sizeof(loader_features), FALSE); |
| |
| 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; |
| } |
| |
| /* 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); |
| |
| 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; |
| } |
| |
| if (secure_boot_enabled() && shim_loaded()) { |
| err = security_policy_install(); |
| if (EFI_ERROR(err)) { |
| Print(L"Error installing security policy: %r ", err); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| return err; |
| } |
| } |
| |
| /* the filesystem path to this image, to prevent adding ourselves to the menu */ |
| loaded_image_path = DevicePathToStr(loaded_image->FilePath); |
| efivar_set(L"LoaderImageIdentifier", loaded_image_path, FALSE); |
| |
| config_load_defaults(&config, root_dir); |
| |
| /* scan /EFI/Linux/ directory */ |
| config_entry_add_linux(&config, loaded_image, root_dir); |
| |
| /* scan /loader/entries/\*.conf files */ |
| config_load_entries(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path); |
| |
| /* sort entries after version number */ |
| config_sort_entries(&config); |
| |
| /* if we find some well-known loaders, add them to the end of the list */ |
| config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, NULL, |
| L"auto-windows", 'w', L"Windows Boot Manager", L"\\EFI\\Microsoft\\Boot\\bootmgfw.efi"); |
| config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, NULL, |
| L"auto-efi-shell", 's', L"EFI Shell", L"\\shell" EFI_MACHINE_TYPE_NAME ".efi"); |
| config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path, |
| L"auto-efi-default", '\0', L"EFI Default Loader", L"\\EFI\\Boot\\boot" EFI_MACHINE_TYPE_NAME ".efi"); |
| config_entry_add_osx(&config); |
| |
| if (config.auto_firmware && efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) { |
| UINT64 osind = (UINT64)*b; |
| |
| if (osind & EFI_OS_INDICATIONS_BOOT_TO_FW_UI) |
| config_entry_add_call(&config, L"auto-reboot-to-firmware-setup", L"Reboot Into Firmware Interface", reboot_into_firmware); |
| FreePool(b); |
| } |
| |
| if (config.entry_count == 0) { |
| Print(L"No loader found. Configuration files in \\loader\\entries\\*.conf are needed."); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| goto out; |
| } |
| |
| config_write_entries_to_variable(&config); |
| |
| config_title_generate(&config); |
| |
| /* select entry by configured pattern or EFI LoaderDefaultEntry= variable */ |
| config_default_entry_select(&config); |
| |
| /* if no configured entry to select from was found, enable the menu */ |
| if (config.idx_default == -1) { |
| config.idx_default = 0; |
| if (config.timeout_sec == 0) |
| config.timeout_sec = 10; |
| } |
| |
| /* select entry or show menu when key is pressed or timeout is set */ |
| if (config.force_menu || config.timeout_sec > 0) |
| menu = TRUE; |
| else { |
| UINT64 key; |
| |
| err = console_key_read(&key, FALSE); |
| if (!EFI_ERROR(err)) { |
| INT16 idx; |
| |
| /* find matching key in config entries */ |
| idx = entry_lookup_key(&config, config.idx_default, KEYCHAR(key)); |
| if (idx >= 0) |
| config.idx_default = idx; |
| else |
| menu = TRUE; |
| } |
| } |
| |
| for (;;) { |
| ConfigEntry *entry; |
| |
| entry = config.entries[config.idx_default]; |
| if (menu) { |
| efivar_set_time_usec(L"LoaderTimeMenuUSec", 0); |
| uefi_call_wrapper(BS->SetWatchdogTimer, 4, 0, 0x10000, 0, NULL); |
| if (!menu_run(&config, &entry, loaded_image_path)) |
| break; |
| } |
| |
| /* run special entry like "reboot" */ |
| if (entry->call) { |
| entry->call(); |
| continue; |
| } |
| |
| config_entry_bump_counters(entry, root_dir); |
| |
| /* export the selected boot entry to the system */ |
| efivar_set(L"LoaderEntrySelected", entry->id, FALSE); |
| |
| uefi_call_wrapper(BS->SetWatchdogTimer, 4, 5 * 60, 0x10000, 0, NULL); |
| err = image_start(image, &config, entry); |
| if (EFI_ERROR(err)) { |
| graphics_mode(FALSE); |
| Print(L"\nFailed to execute %s (%s): %r\n", entry->title, entry->loader, err); |
| uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000); |
| goto out; |
| } |
| |
| menu = TRUE; |
| config.timeout_sec = 0; |
| } |
| err = EFI_SUCCESS; |
| out: |
| FreePool(loaded_image_path); |
| config_free(&config); |
| uefi_call_wrapper(root_dir->Close, 1, root_dir); |
| uefi_call_wrapper(BS->CloseProtocol, 4, image, &LoadedImageProtocol, image, NULL); |
| return err; |
| } |