/* * 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) 2012-2015 Kay Sievers * Copyright (C) 2012-2015 Harald Hoyer */ #include #include #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 " PACKAGE_VERSION " ####"; static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE; enum loader_type { LOADER_UNDEFINED, LOADER_EFI, LOADER_LINUX }; typedef struct { CHAR16 *file; 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; } 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 no_editor; } 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) { CHAR16 *line; UINTN size; UINTN len; UINTN first; CHAR16 *print; UINTN cursor; UINTN clear; BOOLEAN exit; BOOLEAN 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] && 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); FreePool(print); FreePool(line); 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; CHAR16 *s; CHAR8 *b; UINTN x; UINTN y; UINTN 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: " PACKAGE_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", &b, &size) == EFI_SUCCESS) { Print(L"SecureBoot: %s\n", yes_no(*b > 0)); FreePool(b); } if (efivar_get_raw(&global_guid, L"SetupMode", &b, &size) == EFI_SUCCESS) { Print(L"SetupMode: %s\n", *b > 0 ? L"setup" : L"user"); FreePool(b); } if (shim_loaded()) Print(L"Shim: present\n"); if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) { Print(L"OsIndicationsSupported: %d\n", (UINT64)*b); FreePool(b); } Print(L"\n"); Print(L"timeout: %d\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): %d\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->no_editor)); 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: %d\n", i); if (config->entry_oneshot) Print(L"LoaderEntryOneShot: %s\n", config->entry_oneshot); if (efivar_get(L"LoaderDevicePartUUID", &s) == EFI_SUCCESS) { Print(L"LoaderDevicePartUUID: %s\n", s); FreePool(s); } if (efivar_get(L"LoaderEntryDefault", &s) == EFI_SUCCESS) { Print(L"LoaderEntryDefault: %s\n", s); FreePool(s); } 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->file) Print(L"file '%s'\n", entry->file); 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; CHAR16 *str; device_path = DevicePathFromHandle(entry->device); if (device_path) { str = DevicePathToStr(device_path); Print(L"device handle '%s'\n", str); FreePool(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"); 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; 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" "); uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); 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]->file, 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->no_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 " PACKAGE_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) { FreePool(entry->title_show); FreePool(entry->title); FreePool(entry->machine_id); FreePool(entry->loader); FreePool(entry->options); } 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) 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) 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(sep, 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; line = content; while ((line = line_get_key_value(content, (CHAR8 *)" \t", &pos, &key, &value))) { if (strcmpa((CHAR8 *)"timeout", key) == 0) { CHAR16 *s; s = stra_to_str(value); config->timeout_sec_config = Atoi(s); config->timeout_sec = config->timeout_sec_config; FreePool(s); 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->no_editor = !on; } } } static VOID config_entry_add_from_file(Config *config, EFI_HANDLE *device, CHAR16 *file, CHAR8 *content, CHAR16 *loaded_image_path) { ConfigEntry *entry; CHAR8 *line; UINTN pos = 0; CHAR8 *key, *value; UINTN len; CHAR16 *initrd = NULL; entry = AllocateZeroPool(sizeof(ConfigEntry)); line = content; 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) { CHAR16 *new; 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); FreePool(new); continue; } if (strcmpa((CHAR8 *)"options", key) == 0) { CHAR16 *new; 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; } FreePool(new); continue; } } if (entry->type == LOADER_UNDEFINED) { config_entry_free(entry); FreePool(initrd); FreePool(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; } } FreePool(initrd); entry->device = device; entry->file = StrDuplicate(file); len = StrLen(entry->file); /* remove ".conf" */ if (len > 5) entry->file[len - 5] = '\0'; StrLwr(entry->file); config_add_entry(config, entry); } static VOID config_load_defaults(Config *config, EFI_FILE *root_dir) { CHAR8 *content = NULL; UINTN sec; UINTN len; EFI_STATUS err; len = file_read(root_dir, L"\\loader\\loader.conf", 0, 0, &content); if (len > 0) config_defaults_load_from_file(config, content); FreePool(content); err = efivar_get_int(L"LoaderConfigTimeout", &sec); if (!EFI_ERROR(err)) { config->timeout_sec_efivar = sec; config->timeout_sec = sec; } else config->timeout_sec_efivar = -1; } 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; 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; len = file_read(entries_dir, f->FileName, 0, 0, &content); if (len > 0) config_entry_add_from_file(config, device, f->FileName, content, loaded_image_path); FreePool(content); } uefi_call_wrapper(entries_dir->Close, 1, entries_dir); } } 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 (str_verscmp(config->entries[k]->file, config->entries[k+1]->file) <= 0) continue; entry = config->entries[k]; config->entries[k] = config->entries[k+1]; config->entries[k+1] = entry; more = TRUE; } if (!more) break; } } static VOID config_default_entry_select(Config *config) { CHAR16 *var; EFI_STATUS err; UINTN 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", &var); if (!EFI_ERROR(err)) { BOOLEAN found = FALSE; for (i = 0; i < config->entry_count; i++) { if (StrCmp(config->entries[i]->file, var) == 0) { config->idx_default = i; found = TRUE; break; } } config->entry_oneshot = StrDuplicate(var); efivar_set(L"LoaderEntryOneShot", NULL, TRUE); FreePool(var); if (found) 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", &var); if (!EFI_ERROR(err)) { BOOLEAN found = FALSE; for (i = 0; i < config->entry_count; i++) { if (StrCmp(config->entries[i]->file, var) == 0) { config->idx_default = i; config->idx_default_efivar = i; found = TRUE; break; } } FreePool(var); if (found) 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]->file, 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; } /* generate a unique title, avoiding non-distinguishable menu entries */ static VOID config_title_generate(Config *config) { UINTN i, k; BOOLEAN unique; /* 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]->file; config->entries[i]->title_show = StrDuplicate(title); } unique = TRUE; for (i = 0; i < config->entry_count; i++) { for (k = 0; k < config->entry_count; k++) { if (i == k) continue; if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0) continue; unique = FALSE; config->entries[i]->non_unique = TRUE; config->entries[k]->non_unique = TRUE; } } if (unique) 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; config->entries[i]->non_unique = FALSE; } unique = TRUE; for (i = 0; i < config->entry_count; i++) { for (k = 0; k < config->entry_count; k++) { if (i == k) continue; if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0) continue; unique = FALSE; config->entries[i]->non_unique = TRUE; config->entries[k]->non_unique = TRUE; } } if (unique) return; /* add machine-id to non-unique titles */ for (i = 0; i < config->entry_count; i++) { CHAR16 *s; CHAR16 *m; 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; config->entries[i]->non_unique = FALSE; FreePool(m); } unique = TRUE; for (i = 0; i < config->entry_count; i++) { for (k = 0; k < config->entry_count; k++) { if (i == k) continue; if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0) continue; unique = FALSE; config->entries[i]->non_unique = TRUE; config->entries[k]->non_unique = TRUE; } } if (unique) 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]->file); 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 *title, EFI_STATUS (*call)(VOID)) { ConfigEntry *entry; entry = AllocateZeroPool(sizeof(ConfigEntry)); entry->title = StrDuplicate(title); entry->call = call; entry->no_autoselect = TRUE; config_add_entry(config, entry); return TRUE; } static ConfigEntry *config_entry_add_loader(Config *config, EFI_HANDLE *device, enum loader_type type,CHAR16 *file, CHAR16 key, CHAR16 *title, CHAR16 *loader) { ConfigEntry *entry; entry = AllocateZeroPool(sizeof(ConfigEntry)); entry->type = type; entry->title = StrDuplicate(title); entry->device = device; entry->loader = StrDuplicate(loader); entry->file = StrDuplicate(file); StrLwr(entry->file); entry->key = key; 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 *file, CHAR16 key, CHAR16 *title, CHAR16 *loader) { EFI_FILE_HANDLE handle; ConfigEntry *entry; EFI_STATUS err; /* do not add an entry for ourselves */ if (loaded_image_path && StriCmp(loader, loaded_image_path) == 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, file, 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; EFI_HANDLE *handles = NULL; 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; } FreePool(handles); } } 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)) { for (;;) { CHAR16 buf[256]; UINTN bufsize; 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; bufsize = sizeof(buf); 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; len = file_read(linux_dir, f->FileName, offs[0], szs[0], &content); if (len <= 0) continue; /* read properties from the embedded os-release file */ line = content; 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_ID", 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)) { CHAR16 *conf; CHAR16 *path; CHAR16 *cmdline; 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); /* read the embedded cmdline file */ len = file_read(linux_dir, f->FileName, offs[1], szs[1] - 1 , &content); if (len > 0) { cmdline = stra_to_str(content); entry->options = cmdline; cmdline = NULL; } FreePool(cmdline); FreePool(conf); FreePool(path); } 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; EFI_DEVICE_PATH *path; 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); goto out; } 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); #ifdef SD_BOOT_LOG_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) 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 } 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); out: FreePool(path); return err; } static EFI_STATUS reboot_into_firmware(VOID) { CHAR8 *b; 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; FreePool(b); err = efivar_set_raw(&global_guid, L"OsIndications", (CHAR8 *)&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); } EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) { CHAR16 *s; 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 " PACKAGE_VERSION, FALSE); s = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); efivar_set(L"LoaderFirmwareInfo", s, FALSE); FreePool(s); s = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); efivar_set(L"LoaderFirmwareType", s, FALSE); FreePool(s); 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); ZeroMem(&config, sizeof(Config)); 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, loaded_image_path, 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, loaded_image_path, 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 (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"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_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.timeout_sec == 0) { 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; } } 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; } } /* export the selected boot entry to the system */ efivar_set(L"LoaderEntrySelected", entry->file, 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; }