| /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| |
| #include <efi.h> |
| #include <efigpt.h> |
| #include <efilib.h> |
| |
| #include "console.h" |
| #include "crc32.h" |
| #include "disk.h" |
| #include "efi-loader-features.h" |
| #include "graphics.h" |
| #include "linux.h" |
| #include "measure.h" |
| #include "pe.h" |
| #include "random-seed.h" |
| #include "secure-boot.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 " ####"; |
| |
| enum loader_type { |
| LOADER_UNDEFINED, |
| LOADER_EFI, |
| LOADER_LINUX, |
| }; |
| |
| typedef struct { |
| CHAR16 *id; /* The unique identifier for this entry */ |
| 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; |
| RandomSeedMode random_seed_mode; |
| } 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( |
| const 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 j; |
| |
| j = len - first; |
| if (j >= x_max-1) |
| j = x_max-1; |
| CopyMem(print, line + first, j * sizeof(CHAR16)); |
| while (clear > 0 && j < x_max-1) { |
| clear--; |
| print[j++] = ' '; |
| } |
| print[j] = '\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, 0); |
| 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; |
| |
| UINTN k; |
| for (k = first + cursor; k < len && line[k] == ' '; k++) |
| clear++; |
| for (; k < len && line[k] != ' '; k++) |
| clear++; |
| |
| for (UINTN 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 (UINTN 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 (UINTN 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): |
| case KEYPRESS(0, CHAR_CARRIAGE_RETURN, 0): /* EZpad Mini 4s firmware sends malformed events */ |
| case KEYPRESS(0, CHAR_CARRIAGE_RETURN, CHAR_CARRIAGE_RETURN): /* Teclast X98+ II firmware sends malformed events */ |
| if (StrCmp(line, line_in) != 0) |
| *line_out = TAKE_PTR(line); |
| enter = TRUE; |
| exit = TRUE; |
| break; |
| |
| case KEYPRESS(0, 0, CHAR_BACKSPACE): |
| if (len == 0) |
| continue; |
| if (first == 0 && cursor == 0) |
| continue; |
| for (UINTN 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 (UINTN 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) { |
| if (key == 0) |
| return -1; |
| |
| /* select entry by number key */ |
| if (key >= '1' && key <= '9') { |
| UINTN i = key - '0'; |
| if (i > config->entry_count) |
| i = config->entry_count; |
| return i-1; |
| } |
| |
| /* find matching key in config entries */ |
| for (UINTN i = start; i < config->entry_count; i++) |
| if (config->entries[i]->key == key) |
| return i; |
| |
| for (UINTN 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, indvar; |
| UINTN timeout; |
| BOOLEAN modevar; |
| _cleanup_freepool_ CHAR16 *partstr = NULL, *defaultstr = NULL; |
| UINTN x, y; |
| |
| 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); |
| |
| Print(L"SecureBoot: %s\n", yes_no(secure_boot_enabled())); |
| |
| if (efivar_get_boolean_u8(EFI_GLOBAL_GUID, L"SetupMode", &modevar) == EFI_SUCCESS) |
| Print(L"SetupMode: %s\n", modevar ? L"setup" : L"user"); |
| |
| if (shim_loaded()) |
| Print(L"Shim: present\n"); |
| |
| if (efivar_get_uint64_le(EFI_GLOBAL_GUID, L"OsIndicationsSupported", &indvar) == EFI_SUCCESS) |
| Print(L"OsIndicationsSupported: %d\n", indvar); |
| |
| Print(L"\n--- press key ---\n\n"); |
| console_key_read(&key, 0); |
| |
| 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)); |
| |
| switch (config->random_seed_mode) { |
| case RANDOM_SEED_OFF: |
| Print(L"random-seed-mode: off\n"); |
| break; |
| case RANDOM_SEED_WITH_SYSTEM_TOKEN: |
| Print(L"random-seed-mode: with-system-token\n"); |
| break; |
| case RANDOM_SEED_ALWAYS: |
| Print(L"random-seed-mode: always\n"); |
| break; |
| default: |
| ; |
| } |
| |
| 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_uint_string(LOADER_GUID, L"LoaderConfigTimeout", &timeout) == EFI_SUCCESS) |
| Print(L"LoaderConfigTimeout: %u\n", timeout); |
| |
| if (config->entry_oneshot) |
| Print(L"LoaderEntryOneShot: %s\n", config->entry_oneshot); |
| if (efivar_get(LOADER_GUID, L"LoaderDevicePartUUID", &partstr) == EFI_SUCCESS) |
| Print(L"LoaderDevicePartUUID: %s\n", partstr); |
| if (efivar_get(LOADER_GUID, L"LoaderEntryDefault", &defaultstr) == EFI_SUCCESS) |
| Print(L"LoaderEntryDefault: %s\n", defaultstr); |
| |
| Print(L"\n--- press key ---\n\n"); |
| console_key_read(&key, 0); |
| |
| for (UINTN 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 = NULL; |
| |
| 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_MAX) |
| 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, 0); |
| } |
| |
| 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 line_width; |
| CHAR16 **lines; |
| UINTN x_start; |
| UINTN y_start; |
| UINTN x_max; |
| UINTN y_max; |
| CHAR16 *status; |
| CHAR16 *clearline; |
| UINTN timeout_remain = config->timeout_sec; |
| INT16 idx; |
| BOOLEAN exit = FALSE; |
| BOOLEAN run = TRUE; |
| |
| 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, (CHAR16*) L" "); |
| |
| if (config->console_mode_change != CONSOLE_MODE_KEEP) { |
| err = console_set_mode(&config->console_mode, config->console_mode_change); |
| if (EFI_ERROR(err)) { |
| uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut); |
| log_error_stall(L"Error switching console mode to %lu: %r", (UINT64)config->console_mode, err); |
| } |
| } else |
| 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; |
| } |
| |
| 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 (UINTN 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 (UINTN i = 0; i < config->entry_count; i++) { |
| UINTN j; |
| |
| lines[i] = AllocatePool(((x_max+1) * sizeof(CHAR16))); |
| for (j = 0; j < x_start; j++) |
| lines[i][j] = ' '; |
| |
| for (UINTN 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 (UINTN i = 0; i < x_max; i++) |
| clearline[i] = ' '; |
| clearline[x_max] = 0; |
| |
| while (!exit) { |
| UINT64 key; |
| |
| if (refresh) { |
| for (UINTN 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, (CHAR16*) 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, (CHAR16*) 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, (CHAR16*) L"=>"); |
| } |
| highlight = FALSE; |
| } |
| |
| if (timeout_remain > 0) { |
| FreePool(status); |
| status = PoolPrint(L"Boot in %d s.", timeout_remain); |
| } |
| |
| /* 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, timeout_remain > 0 ? 1000 * 1000 : 0); |
| if (err == EFI_TIMEOUT) { |
| timeout_remain--; |
| if (timeout_remain == 0) { |
| exit = TRUE; |
| break; |
| } |
| |
| /* update status */ |
| continue; |
| } else |
| timeout_remain = 0; |
| |
| /* 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): |
| case KEYPRESS(0, CHAR_CARRIAGE_RETURN, 0): /* EZpad Mini 4s firmware sends malformed events */ |
| case KEYPRESS(0, CHAR_CARRIAGE_RETURN, CHAR_CARRIAGE_RETURN): /* Teclast X98+ II firmware sends malformed events */ |
| case KEYPRESS(0, SCAN_RIGHT, 0): |
| 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( |
| LOADER_GUID, |
| L"LoaderEntryDefault", |
| config->entries[idx_highlight]->id, |
| EFI_VARIABLE_NON_VOLATILE); |
| config->idx_default_efivar = idx_highlight; |
| status = StrDuplicate(L"Default boot entry selected."); |
| } else { |
| /* clear the default entry EFI variable */ |
| efivar_set(LOADER_GUID, L"LoaderEntryDefault", NULL, EFI_VARIABLE_NON_VOLATILE); |
| 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_uint_string( |
| LOADER_GUID, |
| L"LoaderConfigTimeout", |
| config->timeout_sec_efivar, |
| EFI_VARIABLE_NON_VOLATILE); |
| if (config->timeout_sec_efivar > 0) |
| status = PoolPrint(L"Menu timeout set to %d s.", 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( |
| LOADER_GUID, L"LoaderConfigTimeout", NULL, EFI_VARIABLE_NON_VOLATILE); |
| if (config->timeout_sec_config > 0) |
| status = PoolPrint(L"Menu timeout of %d s 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_uint_string( |
| LOADER_GUID, |
| L"LoaderConfigTimeout", |
| config->timeout_sec_efivar, |
| EFI_VARIABLE_NON_VOLATILE); |
| if (config->timeout_sec_efivar > 0) |
| status = PoolPrint(L"Menu timeout set to %d s.", |
| 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 (UINTN 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 CHAR8 *line_get_key_value( |
| CHAR8 *content, |
| const CHAR8 *sep, |
| UINTN *pos, |
| CHAR8 **key_ret, |
| CHAR8 **value_ret) { |
| |
| CHAR8 *line, *value; |
| UINTN linelen; |
| |
| 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; |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"auto-entries", key) == 0) { |
| BOOLEAN on; |
| |
| if (EFI_ERROR(parse_boolean(value, &on))) |
| continue; |
| |
| config->auto_entries = on; |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"auto-firmware", key) == 0) { |
| BOOLEAN on; |
| |
| if (EFI_ERROR(parse_boolean(value, &on))) |
| continue; |
| |
| config->auto_firmware = on; |
| continue; |
| } |
| |
| 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; |
| } |
| |
| if (strcmpa((CHAR8*) "random-seed-mode", key) == 0) { |
| if (strcmpa((CHAR8*) "off", value) == 0) |
| config->random_seed_mode = RANDOM_SEED_OFF; |
| else if (strcmpa((CHAR8*) "with-system-token", value) == 0) |
| config->random_seed_mode = RANDOM_SEED_WITH_SYSTEM_TOKEN; |
| else if (strcmpa((CHAR8*) "always", value) == 0) |
| config->random_seed_mode = RANDOM_SEED_ALWAYS; |
| else { |
| BOOLEAN on; |
| |
| if (EFI_ERROR(parse_boolean(value, &on))) |
| continue; |
| |
| config->random_seed_mode = on ? RANDOM_SEED_ALWAYS : RANDOM_SEED_OFF; |
| } |
| } |
| } |
| } |
| |
| static VOID config_entry_parse_tries( |
| ConfigEntry *entry, |
| const CHAR16 *path, |
| const CHAR16 *file, |
| const CHAR16 *suffix) { |
| |
| UINTN left = UINTN_MAX, done = UINTN_MAX, 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_MAX) /* didn't read at least one digit for 'left'? */ |
| return; |
| |
| if (done == UINTN_MAX) /* no 'done' counter? If so, it's equivalent to 0 */ |
| done = 0; |
| |
| goto good; |
| |
| case '-': |
| if (left == UINTN_MAX) /* didn't parse any digit yet? */ |
| return; |
| |
| if (done != UINTN_MAX) /* 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_MAX; |
| factor = 1; |
| break; |
| |
| case '0'...'9': { |
| UINTN new_factor; |
| |
| if (left == UINTN_MAX) |
| left = file[i] - '0'; |
| else { |
| UINTN new_left, digit; |
| |
| digit = file[i] - '0'; |
| if (digit > UINTN_MAX / factor) /* overflow check */ |
| return; |
| |
| new_left = left + digit * factor; |
| if (new_left < left) /* overflow check */ |
| return; |
| |
| if (new_left == UINTN_MAX) /* don't allow us to be confused */ |
| return; |
| } |
| |
| new_factor = factor * 10; |
| if (new_factor < factor) /* overflow check */ |
| 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_MAX) |
| 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) { |
| log_error_stall(L"Failed to get file info for '%s': %r", old_path, r); |
| 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)) { |
| log_error_stall(L"Failed to rename '%s' to '%s', ignoring: %r", old_path, entry->next_name, r); |
| 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(LOADER_GUID, L"LoaderBootCountPath", new_path, 0); |
| |
| /* 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 = TAKE_PTR(new_path); |
| } |
| } |
| |
| static VOID config_entry_add_from_file( |
| Config *config, |
| EFI_HANDLE *device, |
| EFI_FILE *root_dir, |
| const CHAR16 *path, |
| const CHAR16 *file, |
| CHAR8 *content, |
| const CHAR16 *loaded_image_path) { |
| |
| ConfigEntry *entry; |
| CHAR8 *line; |
| UINTN pos = 0; |
| CHAR8 *key, *value; |
| EFI_STATUS err; |
| EFI_FILE_HANDLE handle; |
| _cleanup_freepool_ CHAR16 *initrd = NULL; |
| |
| entry = AllocatePool(sizeof(ConfigEntry)); |
| |
| *entry = (ConfigEntry) { |
| .tries_done = UINTN_MAX, |
| .tries_left = UINTN_MAX, |
| }; |
| |
| 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 (loaded_image_path && 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 = TAKE_PTR(new); |
| |
| continue; |
| } |
| } |
| |
| if (entry->type == LOADER_UNDEFINED) { |
| config_entry_free(entry); |
| return; |
| } |
| |
| /* check existence */ |
| err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &handle, entry->loader, EFI_FILE_MODE_READ, 0ULL); |
| if (EFI_ERROR(err)) { |
| config_entry_free(entry); |
| return; |
| } |
| uefi_call_wrapper(handle->Close, 1, handle); |
| |
| /* 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 = TAKE_PTR(initrd); |
| } |
| |
| entry->device = device; |
| entry->id = StrDuplicate(file); |
| 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, |
| .random_seed_mode = RANDOM_SEED_WITH_SYSTEM_TOKEN, |
| }; |
| |
| 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_uint_string(LOADER_GUID, 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_uint_string(LOADER_GUID, L"LoaderConfigTimeoutOneShot", &sec); |
| if (!EFI_ERROR(err)) { |
| /* Unset variable now, after all it's "one shot". */ |
| (void) efivar_set(LOADER_GUID, L"LoaderConfigTimeoutOneShot", NULL, EFI_VARIABLE_NON_VOLATILE); |
| |
| 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, (CHAR16*) 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; |
| |
| 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; |
| |
| if (!endswith_no_case(f->FileName, L".conf")) |
| continue; |
| if (startswith(f->FileName, L"auto-")) |
| continue; |
| |
| err = file_read(entries_dir, f->FileName, 0, 0, &content, NULL); |
| if (!EFI_ERROR(err)) |
| config_entry_add_from_file(config, device, root_dir, 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 beginning 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 = strverscmp_improved(a->id, b->id); |
| if (r != 0) |
| return r; |
| |
| if (a->tries_left == UINTN_MAX || |
| b->tries_left == UINTN_MAX) |
| return 0; |
| |
| /* If both items have boot counting, and otherwise are identical, put the entry with more tries left last */ |
| 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) { |
| for (UINTN i = 1; i < config->entry_count; i++) { |
| BOOLEAN more; |
| |
| more = FALSE; |
| for (UINTN 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) { |
| for (UINTN 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(LOADER_GUID, L"LoaderEntryOneShot", &entry_oneshot); |
| if (!EFI_ERROR(err)) { |
| |
| config->entry_oneshot = StrDuplicate(entry_oneshot); |
| efivar_set(LOADER_GUID, L"LoaderEntryOneShot", NULL, EFI_VARIABLE_NON_VOLATILE); |
| |
| 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(LOADER_GUID, 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; |
| |
| for (UINTN i = 0; i < entry_count; i++) |
| entries[i]->non_unique = FALSE; |
| |
| for (UINTN i = 0; i < entry_count; i++) |
| for (UINTN 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) { |
| /* set title */ |
| for (UINTN 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 (UINTN 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 (UINTN 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 (UINTN 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, |
| const CHAR16 *id, |
| const 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_MAX, |
| .tries_left = UINTN_MAX, |
| }; |
| |
| config_add_entry(config, entry); |
| return TRUE; |
| } |
| |
| static ConfigEntry *config_entry_add_loader( |
| Config *config, |
| EFI_HANDLE *device, |
| enum loader_type type, |
| const CHAR16 *id, |
| CHAR16 key, |
| const CHAR16 *title, |
| const CHAR16 *loader, |
| const CHAR16 *version) { |
| |
| ConfigEntry *entry; |
| |
| entry = AllocatePool(sizeof(ConfigEntry)); |
| *entry = (ConfigEntry) { |
| .type = type, |
| .title = StrDuplicate(title), |
| .version = version ? StrDuplicate(version) : NULL, |
| .device = device, |
| .loader = StrDuplicate(loader), |
| .id = StrDuplicate(id), |
| .key = key, |
| .tries_done = UINTN_MAX, |
| .tries_left = UINTN_MAX, |
| }; |
| |
| 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, |
| const CHAR16 *loaded_image_path, |
| const CHAR16 *id, |
| CHAR16 key, |
| const CHAR16 *title, |
| const 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)) |
| for (CHAR8 *start = content; start <= content + len - sizeof(magic) - 1; 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, (CHAR16*) 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, NULL); |
| 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)) { |
| for (UINTN 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_HANDLE *device, |
| 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, (CHAR16*) 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[] = { |
| (CHAR8 *)".osrel", |
| (CHAR8 *)".cmdline", |
| NULL |
| }; |
| UINTN offs[ELEMENTSOF(sections)-1] = {}; |
| UINTN szs[ELEMENTSOF(sections)-1] = {}; |
| UINTN addrs[ELEMENTSOF(sections)-1] = {}; |
| CHAR8 *content = NULL; |
| CHAR8 *line; |
| UINTN pos = 0; |
| CHAR8 *key, *value; |
| CHAR16 *os_name_pretty = NULL; |
| CHAR16 *os_name = NULL; |
| CHAR16 *os_id = NULL; |
| CHAR16 *os_version = NULL; |
| CHAR16 *os_version_id = NULL; |
| CHAR16 *os_build_id = 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; |
| if (!endswith_no_case(f->FileName, L".efi")) |
| continue; |
| if (startswith(f->FileName, L"auto-")) |
| 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_pretty); |
| os_name_pretty = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"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 *)"VERSION_ID", key) == 0) { |
| FreePool(os_version_id); |
| os_version_id = stra_to_str(value); |
| continue; |
| } |
| |
| if (strcmpa((CHAR8 *)"BUILD_ID", key) == 0) { |
| FreePool(os_build_id); |
| os_build_id = stra_to_str(value); |
| continue; |
| } |
| } |
| |
| if ((os_name_pretty || os_name) && os_id && (os_version || os_version_id || os_build_id)) { |
| _cleanup_freepool_ CHAR16 *path = NULL; |
| |
| path = PoolPrint(L"\\EFI\\Linux\\%s", f->FileName); |
| |
| entry = config_entry_add_loader(config, device, LOADER_LINUX, f->FileName, 'l', |
| os_name_pretty ?: os_name, path, |
| os_version ?: (os_version_id ? : os_build_id)); |
| |
| 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_pretty); |
| FreePool(os_name); |
| FreePool(os_id); |
| FreePool(os_version); |
| FreePool(os_version_id); |
| FreePool(os_build_id); |
| FreePool(content); |
| } |
| |
| uefi_call_wrapper(linux_dir->Close, 1, linux_dir); |
| } |
| |
| #define XBOOTLDR_GUID \ |
| &(const EFI_GUID) { 0xbc13c2ff, 0x59e6, 0x4262, { 0xa3, 0x52, 0xb2, 0x75, 0xfd, 0x6f, 0x71, 0x72 } } |
| |
| static EFI_DEVICE_PATH *path_parent(EFI_DEVICE_PATH *path, EFI_DEVICE_PATH *node) { |
| EFI_DEVICE_PATH *parent; |
| UINTN len; |
| |
| len = (UINT8*) NextDevicePathNode(node) - (UINT8*) path; |
| parent = (EFI_DEVICE_PATH*) AllocatePool(len + sizeof(EFI_DEVICE_PATH)); |
| CopyMem(parent, path, len); |
| CopyMem((UINT8*) parent + len, EndDevicePath, sizeof(EFI_DEVICE_PATH)); |
| |
| return parent; |
| } |
| |
| static VOID config_load_xbootldr( |
| Config *config, |
| EFI_HANDLE *device) { |
| |
| EFI_DEVICE_PATH *partition_path, *disk_path, *copy; |
| UINT32 found_partition_number = UINT32_MAX; |
| UINT64 found_partition_start = UINT64_MAX; |
| UINT64 found_partition_size = UINT64_MAX; |
| UINT8 found_partition_signature[16] = {}; |
| EFI_HANDLE new_device; |
| EFI_FILE *root_dir; |
| EFI_STATUS r; |
| |
| partition_path = DevicePathFromHandle(device); |
| if (!partition_path) |
| return; |
| |
| for (EFI_DEVICE_PATH *node = partition_path; !IsDevicePathEnd(node); node = NextDevicePathNode(node)) { |
| EFI_HANDLE disk_handle; |
| EFI_BLOCK_IO *block_io; |
| EFI_DEVICE_PATH *p; |
| |
| /* First, Let's look for the SCSI/SATA/USB/… device path node, i.e. one above the media |
| * devices */ |
| if (DevicePathType(node) != MESSAGING_DEVICE_PATH) |
| continue; |
| |
| /* Determine the device path one level up */ |
| disk_path = path_parent(partition_path, node); |
| p = disk_path; |
| r = uefi_call_wrapper(BS->LocateDevicePath, 3, &BlockIoProtocol, &p, &disk_handle); |
| if (EFI_ERROR(r)) |
| continue; |
| |
| r = uefi_call_wrapper(BS->HandleProtocol, 3, disk_handle, &BlockIoProtocol, (VOID **)&block_io); |
| if (EFI_ERROR(r)) |
| continue; |
| |
| /* Filter out some block devices early. (We only care about block devices that aren't |
| * partitions themselves — we look for GPT partition tables to parse after all —, and only |
| * those which contain a medium and have at least 2 blocks.) */ |
| if (block_io->Media->LogicalPartition || |
| !block_io->Media->MediaPresent || |
| block_io->Media->LastBlock <= 1) |
| continue; |
| |
| /* Try both copies of the GPT header, in case one is corrupted */ |
| for (UINTN nr = 0; nr < 2; nr++) { |
| _cleanup_freepool_ EFI_PARTITION_ENTRY* entries = NULL; |
| union { |
| EFI_PARTITION_TABLE_HEADER gpt_header; |
| uint8_t space[((sizeof(EFI_PARTITION_TABLE_HEADER) + 511) / 512) * 512]; |
| } gpt_header_buffer; |
| const EFI_PARTITION_TABLE_HEADER *h = &gpt_header_buffer.gpt_header; |
| UINT64 where; |
| UINTN sz; |
| UINT32 c; |
| |
| if (nr == 0) |
| /* Read the first copy at LBA 1 */ |
| where = 1; |
| else |
| /* Read the second copy at the very last LBA of this block device */ |
| where = block_io->Media->LastBlock; |
| |
| /* Read the GPT header */ |
| r = uefi_call_wrapper(block_io->ReadBlocks, 5, |
| block_io, |
| block_io->Media->MediaId, |
| where, |
| sizeof(gpt_header_buffer), &gpt_header_buffer); |
| if (EFI_ERROR(r)) |
| continue; |
| |
| /* Some superficial validation of the GPT header */ |
| c = CompareMem(&h->Header.Signature, "EFI PART", sizeof(h->Header.Signature)); |
| if (c != 0) |
| continue; |
| |
| if (h->Header.HeaderSize < 92 || |
| h->Header.HeaderSize > 512) |
| continue; |
| |
| if (h->Header.Revision != 0x00010000U) |
| continue; |
| |
| /* Calculate CRC check */ |
| c = ~crc32_exclude_offset(UINT32_MAX, |
| (const UINT8*) &gpt_header_buffer, |
| h->Header.HeaderSize, |
| OFFSETOF(EFI_PARTITION_TABLE_HEADER, Header.CRC32), |
| sizeof(h->Header.CRC32)); |
| if (c != h->Header.CRC32) |
| continue; |
| |
| if (h->MyLBA != where) |
| continue; |
| |
| if (h->SizeOfPartitionEntry < sizeof(EFI_PARTITION_ENTRY)) |
| continue; |
| |
| if (h->NumberOfPartitionEntries <= 0 || |
| h->NumberOfPartitionEntries > 1024) |
| continue; |
| |
| if (h->SizeOfPartitionEntry > UINTN_MAX / h->NumberOfPartitionEntries) /* overflow check */ |
| continue; |
| |
| /* Now load the GPT entry table */ |
| sz = ALIGN_TO((UINTN) h->SizeOfPartitionEntry * (UINTN) h->NumberOfPartitionEntries, 512); |
| entries = AllocatePool(sz); |
| |
| r = uefi_call_wrapper(block_io->ReadBlocks, 5, |
| block_io, |
| block_io->Media->MediaId, |
| h->PartitionEntryLBA, |
| sz, entries); |
| if (EFI_ERROR(r)) |
| continue; |
| |
| /* Calculate CRC of entries array, too */ |
| c = ~crc32(UINT32_MAX, entries, sz); |
| if (c != h->PartitionEntryArrayCRC32) |
| continue; |
| |
| for (UINTN i = 0; i < h->NumberOfPartitionEntries; i++) { |
| EFI_PARTITION_ENTRY *entry; |
| |
| entry = (EFI_PARTITION_ENTRY*) ((UINT8*) entries + h->SizeOfPartitionEntry * i); |
| |
| if (CompareMem(&entry->PartitionTypeGUID, XBOOTLDR_GUID, 16) == 0) { |
| UINT64 end; |
| |
| /* Let's use memcpy(), in case the structs are not aligned (they really should be though) */ |
| CopyMem(&found_partition_start, &entry->StartingLBA, sizeof(found_partition_start)); |
| CopyMem(&end, &entry->EndingLBA, sizeof(end)); |
| |
| if (end < found_partition_start) /* Bogus? */ |
| continue; |
| |
| found_partition_size = end - found_partition_start + 1; |
| CopyMem(found_partition_signature, &entry->UniquePartitionGUID, sizeof(found_partition_signature)); |
| |
| found_partition_number = i + 1; |
| goto found; |
| } |
| } |
| |
| break; /* This GPT was fully valid, but we didn't find what we are looking for. This |
| * means there's no reason to check the second copy of the GPT header */ |
| } |
| } |
| |
| return; /* Not found */ |
| |
| found: |
| copy = DuplicateDevicePath(partition_path); |
| |
| /* Patch in the data we found */ |
| for (EFI_DEVICE_PATH *node = copy; !IsDevicePathEnd(node); node = NextDevicePathNode(node)) { |
| HARDDRIVE_DEVICE_PATH *hd; |
| |
| if (DevicePathType(node) != MEDIA_DEVICE_PATH) |
| continue; |
| |
| if (DevicePathSubType(node) != MEDIA_HARDDRIVE_DP) |
| continue; |
| |
| hd = (HARDDRIVE_DEVICE_PATH*) node; |
| hd->PartitionNumber = found_partition_number; |
| hd->PartitionStart = found_partition_start; |
| hd->PartitionSize = found_partition_size; |
| CopyMem(hd->Signature, found_partition_signature, sizeof(hd->Signature)); |
| hd->MBRType = MBR_TYPE_EFI_PARTITION_TABLE_HEADER; |
| hd->SignatureType = SIGNATURE_TYPE_GUID; |
| } |
| |
| r = uefi_call_wrapper(BS->LocateDevicePath, 3, &BlockIoProtocol, ©, &new_device); |
| if (EFI_ERROR(r)) |
| return; |
| |
| root_dir = LibOpenRoot(new_device); |
| if (!root_dir) |
| return; |
| |
| config_entry_add_linux(config, new_device, root_dir); |
| config_load_entries(config, new_device, root_dir, NULL); |
| } |
| |
| 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) |
| return log_error_status_stall(EFI_INVALID_PARAMETER, L"Error getting device path."); |
| |
| err = uefi_call_wrapper(BS->LoadImage, 6, FALSE, parent_image, path, NULL, 0, &image); |
| if (EFI_ERROR(err)) |
| return log_error_status_stall(err, L"Error loading %s: %r", entry->loader, 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)) { |
| log_error_stall(L"Error getting LoadedImageProtocol handle: %r", err); |
| 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)) |
| log_error_stall(L"Unable to add image options measurement: %r", err); |
| #endif |
| } |
| |
| efivar_set_time_usec(LOADER_GUID, 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) { |
| UINT64 old, new; |
| EFI_STATUS err; |
| |
| new = EFI_OS_INDICATIONS_BOOT_TO_FW_UI; |
| |
| err = efivar_get_uint64_le(EFI_GLOBAL_GUID, L"OsIndications", &old); |
| if (!EFI_ERROR(err)) |
| new |= old; |
| |
| err = efivar_set_uint64_le(EFI_GLOBAL_GUID, L"OsIndications", new, EFI_VARIABLE_NON_VOLATILE); |
| if (EFI_ERROR(err)) |
| return err; |
| |
| err = uefi_call_wrapper(RT->ResetSystem, 4, EfiResetCold, EFI_SUCCESS, 0, NULL); |
| return log_error_status_stall(err, L"Error calling ResetSystem: %r", err); |
| } |
| |
| static VOID config_free(Config *config) { |
| for (UINTN 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 sz = 0; |
| CHAR16 *p; |
| |
| for (UINTN i = 0; i < config->entry_count; i++) |
| sz += StrLen(config->entries[i]->id) + 1; |
| |
| p = buffer = AllocatePool(sz * sizeof(CHAR16)); |
| |
| for (UINTN 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, 0); |
| } |
| |
| EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) { |
| static const UINT64 loader_features = |
| EFI_LOADER_FEATURE_CONFIG_TIMEOUT | |
| EFI_LOADER_FEATURE_CONFIG_TIMEOUT_ONE_SHOT | |
| EFI_LOADER_FEATURE_ENTRY_DEFAULT | |
| EFI_LOADER_FEATURE_ENTRY_ONESHOT | |
| EFI_LOADER_FEATURE_BOOT_COUNTING | |
| EFI_LOADER_FEATURE_XBOOTLDR | |
| EFI_LOADER_FEATURE_RANDOM_SEED | |
| 0; |
| |
| _cleanup_freepool_ CHAR16 *infostr = NULL, *typestr = NULL; |
| UINT64 osind = 0; |
| 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(LOADER_GUID, L"LoaderTimeInitUSec", init_usec); |
| efivar_set(LOADER_GUID, L"LoaderInfo", L"systemd-boot " GIT_VERSION, 0); |
| |
| infostr = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff); |
| efivar_set(LOADER_GUID, L"LoaderFirmwareInfo", infostr, 0); |
| |
| typestr = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff); |
| efivar_set(LOADER_GUID, L"LoaderFirmwareType", typestr, 0); |
| |
| (void) efivar_set_uint64_le(LOADER_GUID, L"LoaderFeatures", loader_features, 0); |
| |
| err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image, |
| image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); |
| if (EFI_ERROR(err)) |
| return log_error_status_stall(err, L"Error getting a LoadedImageProtocol handle: %r", err); |
| |
| /* export the device path this image is started from */ |
| if (disk_get_part_uuid(loaded_image->DeviceHandle, uuid) == EFI_SUCCESS) |
| efivar_set(LOADER_GUID, L"LoaderDevicePartUUID", uuid, 0); |
| |
| root_dir = LibOpenRoot(loaded_image->DeviceHandle); |
| if (!root_dir) |
| return log_error_status_stall(EFI_LOAD_ERROR, L"Unable to open root directory.", EFI_LOAD_ERROR); |
| |
| if (secure_boot_enabled() && shim_loaded()) { |
| err = security_policy_install(); |
| if (EFI_ERROR(err)) |
| return log_error_status_stall(err, L"Error installing security policy: %r", err); |
| } |
| |
| /* the filesystem path to this image, to prevent adding ourselves to the menu */ |
| loaded_image_path = DevicePathToStr(loaded_image->FilePath); |
| efivar_set(LOADER_GUID, L"LoaderImageIdentifier", loaded_image_path, 0); |
| |
| config_load_defaults(&config, root_dir); |
| |
| /* scan /EFI/Linux/ directory */ |
| config_entry_add_linux(&config, loaded_image->DeviceHandle, root_dir); |
| |
| /* scan /loader/entries/\*.conf files */ |
| config_load_entries(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path); |
| |
| /* Similar, but on any XBOOTLDR partition */ |
| config_load_xbootldr(&config, loaded_image->DeviceHandle); |
| |
| /* 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_uint64_le(EFI_GLOBAL_GUID, L"OsIndicationsSupported", &osind) == EFI_SUCCESS) { |
| 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); |
| } |
| |
| if (config.entry_count == 0) { |
| log_error_stall(L"No loader found. Configuration files in \\loader\\entries\\*.conf are needed."); |
| 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; |
| |
| /* Block up to 100ms to give firmware time to get input working. */ |
| err = console_key_read(&key, 100 * 1000); |
| 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(LOADER_GUID, 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 */ |
| (VOID) efivar_set(LOADER_GUID, L"LoaderEntrySelected", entry->id, 0); |
| |
| /* Optionally, read a random seed off the ESP and pass it to the OS */ |
| (VOID) process_random_seed(root_dir, config.random_seed_mode); |
| |
| uefi_call_wrapper(BS->SetWatchdogTimer, 4, 5 * 60, 0x10000, 0, NULL); |
| err = image_start(image, &config, entry); |
| if (EFI_ERROR(err)) { |
| graphics_mode(FALSE); |
| log_error_stall(L"Failed to execute %s (%s): %r", entry->title, entry->loader, err); |
| 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; |
| } |