boot.c revision 4db7e6d781c2d9bba4e9124d26e811dd4addc1c5
0N/A/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
0N/A
0N/A/*
0N/A * This program is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU Lesser General Public License as published by
0N/A * the Free Software Foundation; either version 2.1 of the License, or
0N/A * (at your option) any later version.
0N/A *
0N/A * This program is distributed in the hope that it will be useful, but
0N/A * WITHOUT ANY WARRANTY; without even the implied warranty of
0N/A * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
0N/A * Lesser General Public License for more details.
0N/A *
0N/A * Copyright (C) 2012-2015 Kay Sievers <kay@vrfy.org>
0N/A * Copyright (C) 2012-2015 Harald Hoyer <harald@redhat.com>
0N/A */
0N/A
0N/A#include <efi.h>
873N/A#include <efilib.h>
0N/A
0N/A#include "util.h"
0N/A#include "console.h"
0N/A#include "graphics.h"
0N/A#include "pefile.h"
868N/A#include "linux.h"
0N/A
0N/A#ifndef EFI_OS_INDICATIONS_BOOT_TO_FW_UI
2086N/A#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001ULL
0N/A#endif
0N/A
0N/A/* magic string to find in the binary image */
1663N/Astatic const char __attribute__((used)) magic[] = "#### LoaderInfo: systemd-boot " VERSION " ####";
0N/A
1689N/Astatic const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE;
338N/A
338N/Aenum loader_type {
513N/A LOADER_UNDEFINED,
0N/A LOADER_EFI,
0N/A LOADER_LINUX
0N/A};
0N/A
0N/Atypedef struct {
0N/A CHAR16 *file;
0N/A CHAR16 *title_show;
0N/A CHAR16 *title;
0N/A CHAR16 *version;
0N/A CHAR16 *machine_id;
0N/A EFI_HANDLE *device;
1663N/A enum loader_type type;
1663N/A CHAR16 *loader;
0N/A CHAR16 *options;
2095N/A CHAR16 key;
2095N/A EFI_STATUS (*call)(VOID);
2095N/A BOOLEAN no_autoselect;
2095N/A BOOLEAN non_unique;
2095N/A} ConfigEntry;
1663N/A
0N/Atypedef struct {
513N/A ConfigEntry **entries;
0N/A UINTN entry_count;
0N/A INTN idx_default;
0N/A INTN idx_default_efivar;
1663N/A UINTN timeout_sec;
1663N/A UINTN timeout_sec_config;
0N/A INTN timeout_sec_efivar;
0N/A CHAR16 *entry_default_pattern;
0N/A CHAR16 *entry_oneshot;
0N/A CHAR16 *options_edit;
0N/A BOOLEAN no_editor;
0N/A} Config;
0N/A
0N/Astatic VOID cursor_left(UINTN *cursor, UINTN *first)
0N/A{
0N/A if ((*cursor) > 0)
1663N/A (*cursor)--;
0N/A else if ((*first) > 0)
0N/A (*first)--;
0N/A}
0N/A
0N/Astatic VOID cursor_right(UINTN *cursor, UINTN *first, UINTN x_max, UINTN len)
0N/A{
0N/A if ((*cursor)+1 < x_max)
0N/A (*cursor)++;
0N/A else if ((*first) + (*cursor) < len)
0N/A (*first)++;
0N/A}
0N/A
0N/Astatic BOOLEAN line_edit(CHAR16 *line_in, CHAR16 **line_out, UINTN x_max, UINTN y_pos) {
2086N/A CHAR16 *line;
0N/A UINTN size;
0N/A UINTN len;
0N/A UINTN first;
0N/A CHAR16 *print;
0N/A UINTN cursor;
0N/A UINTN clear;
0N/A BOOLEAN exit;
0N/A BOOLEAN enter;
0N/A
0N/A if (!line_in)
0N/A line_in = L"";
0N/A size = StrLen(line_in) + 1024;
0N/A line = AllocatePool(size * sizeof(CHAR16));
0N/A StrCpy(line, line_in);
1689N/A len = StrLen(line);
0N/A print = AllocatePool((x_max+1) * sizeof(CHAR16));
513N/A
513N/A uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, TRUE);
513N/A
513N/A first = 0;
513N/A cursor = 0;
513N/A clear = 0;
513N/A enter = FALSE;
513N/A exit = FALSE;
513N/A while (!exit) {
513N/A EFI_STATUS err;
513N/A UINT64 key;
513N/A UINTN i;
513N/A
513N/A i = len - first;
513N/A if (i >= x_max-1)
513N/A i = x_max-1;
513N/A CopyMem(print, line + first, i * sizeof(CHAR16));
513N/A while (clear > 0 && i < x_max-1) {
513N/A clear--;
513N/A print[i++] = ' ';
513N/A }
513N/A print[i] = '\0';
513N/A
513N/A uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_pos);
513N/A uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, print);
513N/A uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
513N/A
513N/A err = console_key_read(&key, TRUE);
513N/A if (EFI_ERROR(err))
513N/A continue;
513N/A
513N/A switch (key) {
513N/A case KEYPRESS(0, SCAN_ESC, 0):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'c'):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'g'):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('c')):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('g')):
513N/A exit = TRUE;
513N/A break;
513N/A
513N/A case KEYPRESS(0, SCAN_HOME, 0):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'a'):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('a')):
513N/A /* beginning-of-line */
513N/A cursor = 0;
513N/A first = 0;
513N/A continue;
513N/A
513N/A case KEYPRESS(0, SCAN_END, 0):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'e'):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('e')):
513N/A /* end-of-line */
513N/A cursor = len - first;
513N/A if (cursor+1 >= x_max) {
513N/A cursor = x_max-1;
513N/A first = len - (x_max-1);
513N/A }
513N/A continue;
513N/A
513N/A case KEYPRESS(0, SCAN_DOWN, 0):
513N/A case KEYPRESS(EFI_ALT_PRESSED, 0, 'f'):
513N/A case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_RIGHT, 0):
0N/A /* forward-word */
0N/A 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: " 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 (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 " 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(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path) {
EFI_FILE_HANDLE entries_dir;
EFI_STATUS err;
CHAR8 *content = NULL;
UINTN sec;
UINTN len;
UINTN i;
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;
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);
}
/* sort entries after version number */
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"OS X",
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;
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",
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;
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 an .osrel section in the .efi binary */
err = pefile_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) {
os_name = stra_to_str(value);
continue;
}
if (strcmpa((CHAR8 *)"ID", key) == 0) {
os_id = stra_to_str(value);
continue;
}
if (strcmpa((CHAR8 *)"VERSION_ID", key) == 0) {
os_version = stra_to_str(value);
continue;
}
}
if (os_name && os_id && os_version) {
CHAR16 *conf;
CHAR16 *path;
conf = PoolPrint(L"%s-%s", os_id, os_version);
path = PoolPrint(L"\\EFI\\Linux\\%s", f->FileName);
config_entry_add_loader(config, loaded_image->DeviceHandle, LOADER_LINUX, conf, 'l', os_name, path);
FreePool(conf);
FreePool(path);
FreePool(os_name);
FreePool(os_id);
FreePool(os_version);
}
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);
}
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_DEVICE_PATH *device_path;
EFI_STATUS err;
Config config;
UINT64 init_usec;
BOOLEAN menu = FALSE;
InitializeLib(image, sys_table);
init_usec = time_usec();
efivar_set_time_usec(L"LoaderTimeInitUSec", init_usec);
efivar_set(L"LoaderInfo", L"systemd-boot " 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 */
device_path = DevicePathFromHandle(loaded_image->DeviceHandle);
if (device_path) {
EFI_DEVICE_PATH *path, *paths;
paths = UnpackDevicePath(device_path);
for (path = paths; !IsDevicePathEnd(path); path = NextDevicePathNode(path)) {
HARDDRIVE_DEVICE_PATH *drive;
CHAR16 uuid[37];
if (DevicePathType(path) != MEDIA_DEVICE_PATH)
continue;
if (DevicePathSubType(path) != MEDIA_HARDDRIVE_DP)
continue;
drive = (HARDDRIVE_DEVICE_PATH *)path;
if (drive->SignatureType != SIGNATURE_TYPE_GUID)
continue;
GuidToString(uuid, (EFI_GUID *)&drive->Signature);
efivar_set(L"LoaderDevicePartUUID", uuid, FALSE);
break;
}
FreePool(paths);
}
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;
}
/* 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);
/* scan "\loader\entries\*.conf" files */
ZeroMem(&config, sizeof(Config));
config_load(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path);
/* if we find some well-known loaders, add them to the end of the list */
config_entry_add_linux(&config, loaded_image, root_dir);
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;
}