src/efi/gummiboot.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /*
   4  * Simple UEFI boot loader which executes configured EFI images, where the
   5  * default entry is selected by a configured pattern (glob) or an on-screen
   6  * menu.
   7  *
   8  * All gummiboot code is LGPL not GPL, to stay out of politics and to give
   9  * the freedom of copying code from programs to possible future libraries.
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU Lesser General Public License as published by
  13  * the Free Software Foundation; either version 2.1 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * Copyright (C) 2012-2013 Kay Sievers <kay@vrfy.org>
  22  * Copyright (C) 2012 Harald Hoyer <harald@redhat.com>
  23  *
  24  * "Any intelligent fool can make things bigger, more complex, and more violent."
  25  *   -- Albert Einstein
  26  */
  27
  28 #include <efi.h>
  29 #include <efilib.h>
  30
  31 #include "util.h"
  32 #include "console.h"
  33 #include "graphics.h"
  34
  35 #ifndef EFI_OS_INDICATIONS_BOOT_TO_FW_UI
  36 #define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001ULL
  37 #endif
  38
  39 #ifndef EFI_SECURITY_VIOLATION
  40 #define EFI_SECURITY_VIOLATION      EFIERR(26)
  41 #endif
  42
  43 /* magic string to find in the binary image */
  44 static const char __attribute__((used)) magic[] = "#### LoaderInfo: gummiboot " VERSION " ####";
  45
  46 static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE;
  47
  48 enum loader_type {
  49         LOADER_UNDEFINED,
  50         LOADER_EFI,
  51         LOADER_LINUX
  52 };
  53
  54 typedef struct {
  55         CHAR16 *file;
  56         CHAR16 *title_show;
  57         CHAR16 *title;
  58         CHAR16 *version;
  59         CHAR16 *machine_id;
  60         EFI_HANDLE *device;
  61         enum loader_type type;
  62         CHAR16 *loader;
  63         CHAR16 *options;
  64         CHAR16 *splash;
  65         CHAR16 key;
  66         EFI_STATUS (*call)(void);
  67         BOOLEAN no_autoselect;
  68         BOOLEAN non_unique;
  69 } ConfigEntry;
  70
  71 typedef struct {
  72         ConfigEntry **entries;
  73         UINTN entry_count;
  74         INTN idx_default;
  75         INTN idx_default_efivar;
  76         UINTN timeout_sec;
  77         UINTN timeout_sec_config;
  78         INTN timeout_sec_efivar;
  79         CHAR16 *entry_default_pattern;
  80         CHAR16 *splash;
  81         CHAR16 *entry_oneshot;
  82         CHAR16 *options_edit;
  83         CHAR16 *entries_auto;
  84 } Config;
  85
  86 static void cursor_left(UINTN *cursor, UINTN *first)
  87 {
  88         if ((*cursor) > 0)
  89                 (*cursor)--;
  90         else if ((*first) > 0)
  91                 (*first)--;
  92 }
  93
  94 static void cursor_right(UINTN *cursor, UINTN *first, UINTN x_max, UINTN len)
  95 {
  96         if ((*cursor)+1 < x_max)
  97                 (*cursor)++;
  98         else if ((*first) + (*cursor) < len)
  99                 (*first)++;
 100 }
 101
 102 static BOOLEAN line_edit(CHAR16 *line_in, CHAR16 **line_out, UINTN x_max, UINTN y_pos) {
 103         CHAR16 *line;
 104         UINTN size;
 105         UINTN len;
 106         UINTN first;
 107         CHAR16 *print;
 108         UINTN cursor;
 109         UINTN clear;
 110         BOOLEAN exit;
 111         BOOLEAN enter;
 112
 113         if (!line_in)
 114                 line_in = L"";
 115         size = StrLen(line_in) + 1024;
 116         line = AllocatePool(size * sizeof(CHAR16));
 117         StrCpy(line, line_in);
 118         len = StrLen(line);
 119         print = AllocatePool((x_max+1) * sizeof(CHAR16));
 120
 121         uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, TRUE);
 122
 123         first = 0;
 124         cursor = 0;
 125         clear = 0;
 126         enter = FALSE;
 127         exit = FALSE;
 128         while (!exit) {
 129                 EFI_STATUS err;
 130                 UINT64 key;
 131                 UINTN i;
 132
 133                 i = len - first;
 134                 if (i >= x_max-1)
 135                         i = x_max-1;
 136                 CopyMem(print, line + first, i * sizeof(CHAR16));
 137                 while (clear > 0 && i < x_max-1) {
 138                         clear--;
 139                         print[i++] = ' ';
 140                 }
 141                 print[i] = '\0';
 142
 143                 uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_pos);
 144                 uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, print);
 145                 uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
 146
 147                 err = console_key_read(&key, TRUE);
 148                 if (EFI_ERROR(err))
 149                         continue;
 150
 151                 switch (key) {
 152                 case KEYPRESS(0, SCAN_ESC, 0):
 153                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'c'):
 154                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'g'):
 155                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('c')):
 156                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('g')):
 157                         exit = TRUE;
 158                         break;
 159
 160                 case KEYPRESS(0, SCAN_HOME, 0):
 161                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'a'):
 162                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('a')):
 163                         /* beginning-of-line */
 164                         cursor = 0;
 165                         first = 0;
 166                         continue;
 167
 168                 case KEYPRESS(0, SCAN_END, 0):
 169                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'e'):
 170                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('e')):
 171                         /* end-of-line */
 172                         cursor = len - first;
 173                         if (cursor+1 >= x_max) {
 174                                 cursor = x_max-1;
 175                                 first = len - (x_max-1);
 176                         }
 177                         continue;
 178
 179                 case KEYPRESS(0, SCAN_DOWN, 0):
 180                 case KEYPRESS(EFI_ALT_PRESSED, 0, 'f'):
 181                 case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_RIGHT, 0):
 182                         /* forward-word */
 183                         while (line[first + cursor] && line[first + cursor] == ' ')
 184                                 cursor_right(&cursor, &first, x_max, len);
 185                         while (line[first + cursor] && line[first + cursor] != ' ')
 186                                 cursor_right(&cursor, &first, x_max, len);
 187                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
 188                         continue;
 189
 190                 case KEYPRESS(0, SCAN_UP, 0):
 191                 case KEYPRESS(EFI_ALT_PRESSED, 0, 'b'):
 192                 case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_LEFT, 0):
 193                         /* backward-word */
 194                         if ((first + cursor) > 0 && line[first + cursor-1] == ' ') {
 195                                 cursor_left(&cursor, &first);
 196                                 while ((first + cursor) > 0 && line[first + cursor] == ' ')
 197                                         cursor_left(&cursor, &first);
 198                         }
 199                         while ((first + cursor) > 0 && line[first + cursor-1] != ' ')
 200                                 cursor_left(&cursor, &first);
 201                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
 202                         continue;
 203
 204                 case KEYPRESS(0, SCAN_RIGHT, 0):
 205                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'f'):
 206                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('f')):
 207                         /* forward-char */
 208                         if (first + cursor == len)
 209                                 continue;
 210                         cursor_right(&cursor, &first, x_max, len);
 211                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
 212                         continue;
 213
 214                 case KEYPRESS(0, SCAN_LEFT, 0):
 215                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'b'):
 216                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('b')):
 217                         /* backward-char */
 218                         cursor_left(&cursor, &first);
 219                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
 220                         continue;
 221
 222                 case KEYPRESS(EFI_ALT_PRESSED, 0, 'd'):
 223                         /* kill-word */
 224                         clear = 0;
 225                         for (i = first + cursor; i < len && line[i] == ' '; i++)
 226                                 clear++;
 227                         for (; i < len && line[i] != ' '; i++)
 228                                 clear++;
 229
 230                         for (i = first + cursor; i + clear < len; i++)
 231                                 line[i] = line[i + clear];
 232                         len -= clear;
 233                         line[len] = '\0';
 234                         continue;
 235
 236                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'w'):
 237                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('w')):
 238                 case KEYPRESS(EFI_ALT_PRESSED, 0, CHAR_BACKSPACE):
 239                         /* backward-kill-word */
 240                         clear = 0;
 241                         if ((first + cursor) > 0 && line[first + cursor-1] == ' ') {
 242                                 cursor_left(&cursor, &first);
 243                                 clear++;
 244                                 while ((first + cursor) > 0 && line[first + cursor] == ' ') {
 245                                         cursor_left(&cursor, &first);
 246                                         clear++;
 247                                 }
 248                         }
 249                         while ((first + cursor) > 0 && line[first + cursor-1] != ' ') {
 250                                 cursor_left(&cursor, &first);
 251                                 clear++;
 252                         }
 253                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);
 254
 255                         for (i = first + cursor; i + clear < len; i++)
 256                                 line[i] = line[i + clear];
 257                         len -= clear;
 258                         line[len] = '\0';
 259                         continue;
 260
 261                 case KEYPRESS(0, SCAN_DELETE, 0):
 262                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'd'):
 263                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('d')):
 264                         if (len == 0)
 265                                 continue;
 266                         if (first + cursor == len)
 267                                 continue;
 268                         for (i = first + cursor; i < len; i++)
 269                                 line[i] = line[i+1];
 270                         clear = 1;
 271                         len--;
 272                         continue;
 273
 274                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'k'):
 275                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('k')):
 276                         /* kill-line */
 277                         line[first + cursor] = '\0';
 278                         clear = len - (first + cursor);
 279                         len = first + cursor;
 280                         continue;
 281
 282                 case KEYPRESS(0, 0, CHAR_LINEFEED):
 283                 case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN):
 284                         if (StrCmp(line, line_in) != 0) {
 285                                 *line_out = line;
 286                                 line = NULL;
 287                         }
 288                         enter = TRUE;
 289                         exit = TRUE;
 290                         break;
 291
 292                 case KEYPRESS(0, 0, CHAR_BACKSPACE):
 293                         if (len == 0)
 294                                 continue;
 295                         if (first == 0 && cursor == 0)
 296                                 continue;
 297                         for (i = first + cursor-1; i < len; i++)
 298                                 line[i] = line[i+1];
 299                         clear = 1;
 300                         len--;
 301                         if (cursor > 0)
 302                                 cursor--;
 303                         if (cursor > 0 || first == 0)
 304                                 continue;
 305                         /* show full line if it fits */
 306                         if (len < x_max) {
 307                                 cursor = first;
 308                                 first = 0;
 309                                 continue;
 310                         }
 311                         /* jump left to see what we delete */
 312                         if (first > 10) {
 313                                 first -= 10;
 314                                 cursor = 10;
 315                         } else {
 316                                 cursor = first;
 317                                 first = 0;
 318                         }
 319                         continue;
 320
 321                 case KEYPRESS(0, 0, ' ') ... KEYPRESS(0, 0, '~'):
 322                 case KEYPRESS(0, 0, 0x80) ... KEYPRESS(0, 0, 0xffff):
 323                         if (len+1 == size)
 324                                 continue;
 325                         for (i = len; i > first + cursor; i--)
 326                                 line[i] = line[i-1];
 327                         line[first + cursor] = KEYCHAR(key);
 328                         len++;
 329                         line[len] = '\0';
 330                         if (cursor+1 < x_max)
 331                                 cursor++;
 332                         else if (first + cursor < len)
 333                                 first++;
 334                         continue;
 335                 }
 336         }
 337
 338         uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE);
 339         FreePool(print);
 340         FreePool(line);
 341         return enter;
 342 }
 343
 344 static UINTN entry_lookup_key(Config *config, UINTN start, CHAR16 key) {
 345         UINTN i;
 346
 347         if (key == 0)
 348                 return -1;
 349
 350         /* select entry by number key */
 351         if (key >= '1' && key <= '9') {
 352                 i = key - '0';
 353                 if (i > config->entry_count)
 354                         i = config->entry_count;
 355                 return i-1;
 356         }
 357
 358         /* find matching key in config entries */
 359         for (i = start; i < config->entry_count; i++)
 360                 if (config->entries[i]->key == key)
 361                         return i;
 362
 363         for (i = 0; i < start; i++)
 364                 if (config->entries[i]->key == key)
 365                         return i;
 366
 367         return -1;
 368 }
 369
 370 static VOID print_status(Config *config, CHAR16 *loaded_image_path) {
 371         UINT64 key;
 372         UINTN i;
 373         CHAR16 *s;
 374         CHAR8 *b;
 375         UINTN size;
 376
 377         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 378         uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);
 379
 380         Print(L"gummiboot version:      " VERSION "\n");
 381         Print(L"loaded image:           %s\n", loaded_image_path);
 382         Print(L"UEFI version:           %d.%02d\n", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff);
 383         Print(L"firmware vendor:        %s\n", ST->FirmwareVendor);
 384         Print(L"firmware version:       %d.%02d\n", ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);
 385         if (efivar_get_raw(&global_guid, L"SecureBoot", &b, &size) == EFI_SUCCESS) {
 386                 Print(L"SecureBoot:             %s\n", *b > 0 ? L"enabled" : L"disabled");
 387                 FreePool(b);
 388         }
 389
 390         if (efivar_get_raw(&global_guid, L"SetupMode", &b, &size) == EFI_SUCCESS) {
 391                 Print(L"SetupMode:              %s\n", *b > 0 ? L"setup" : L"user");
 392                 FreePool(b);
 393         }
 394
 395         if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) {
 396                 Print(L"OsIndicationsSupported: %d\n", (UINT64)*b);
 397                 FreePool(b);
 398         }
 399         Print(L"\n");
 400
 401         Print(L"timeout:                %d\n", config->timeout_sec);
 402         if (config->timeout_sec_efivar >= 0)
 403                 Print(L"timeout (EFI var):      %d\n", config->timeout_sec_efivar);
 404         Print(L"timeout (config):       %d\n", config->timeout_sec_config);
 405         if (config->entry_default_pattern)
 406                 Print(L"default pattern:        '%s'\n", config->entry_default_pattern);
 407         if (config->splash)
 408                 Print(L"splash                  '%s'\n", config->splash);
 409         Print(L"\n");
 410
 411         Print(L"config entry count:     %d\n", config->entry_count);
 412         Print(L"entry selected idx:     %d\n", config->idx_default);
 413         if (config->idx_default_efivar >= 0)
 414                 Print(L"entry EFI var idx:      %d\n", config->idx_default_efivar);
 415         Print(L"\n");
 416
 417         if (efivar_get_int(L"LoaderConfigTimeout", &i) == EFI_SUCCESS)
 418                 Print(L"LoaderConfigTimeout:    %d\n", i);
 419         if (config->entry_oneshot)
 420                 Print(L"LoaderEntryOneShot:     %s\n", config->entry_oneshot);
 421         if (efivar_get(L"LoaderDeviceIdentifier", &s) == EFI_SUCCESS) {
 422                 Print(L"LoaderDeviceIdentifier: %s\n", s);
 423                 FreePool(s);
 424         }
 425         if (efivar_get(L"LoaderDevicePartUUID", &s) == EFI_SUCCESS) {
 426                 Print(L"LoaderDevicePartUUID:   %s\n", s);
 427                 FreePool(s);
 428         }
 429         if (efivar_get(L"LoaderEntryDefault", &s) == EFI_SUCCESS) {
 430                 Print(L"LoaderEntryDefault:     %s\n", s);
 431                 FreePool(s);
 432         }
 433
 434         Print(L"\n--- press key ---\n\n");
 435         console_key_read(&key, TRUE);
 436
 437         for (i = 0; i < config->entry_count; i++) {
 438                 ConfigEntry *entry;
 439
 440                 if (key == KEYPRESS(0, SCAN_ESC, 0) || key == KEYPRESS(0, 0, 'q'))
 441                         break;
 442
 443                 entry = config->entries[i];
 444                 Print(L"config entry:           %d/%d\n", i+1, config->entry_count);
 445                 if (entry->file)
 446                         Print(L"file                    '%s'\n", entry->file);
 447                 Print(L"title show              '%s'\n", entry->title_show);
 448                 if (entry->title)
 449                         Print(L"title                   '%s'\n", entry->title);
 450                 if (entry->version)
 451                         Print(L"version                 '%s'\n", entry->version);
 452                 if (entry->machine_id)
 453                         Print(L"machine-id              '%s'\n", entry->machine_id);
 454                 if (entry->device) {
 455                         EFI_DEVICE_PATH *device_path;
 456                         CHAR16 *str;
 457
 458                         device_path = DevicePathFromHandle(entry->device);
 459                         if (device_path) {
 460                                 str = DevicePathToStr(device_path);
 461                                 Print(L"device handle           '%s'\n", str);
 462                                 FreePool(str);
 463                         }
 464                 }
 465                 if (entry->loader)
 466                         Print(L"loader                  '%s'\n", entry->loader);
 467                 if (entry->options)
 468                         Print(L"options                 '%s'\n", entry->options);
 469                 if (entry->splash)
 470                         Print(L"splash                  '%s'\n", entry->splash);
 471                 Print(L"auto-select             %s\n", entry->no_autoselect ? L"no" : L"yes");
 472                 if (entry->call)
 473                         Print(L"internal call           yes\n");
 474
 475                 Print(L"\n--- press key ---\n\n");
 476                 console_key_read(&key, TRUE);
 477         }
 478
 479         uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);
 480 }
 481
 482 static BOOLEAN menu_run(Config *config, ConfigEntry **chosen_entry, CHAR16 *loaded_image_path) {
 483         EFI_STATUS err;
 484         UINTN visible_max;
 485         UINTN idx_highlight;
 486         UINTN idx_highlight_prev;
 487         UINTN idx_first;
 488         UINTN idx_last;
 489         BOOLEAN refresh;
 490         BOOLEAN highlight;
 491         UINTN i;
 492         UINTN line_width;
 493         CHAR16 **lines;
 494         UINTN x_start;
 495         UINTN y_start;
 496         UINTN x_max;
 497         UINTN y_max;
 498         CHAR16 *status;
 499         CHAR16 *clearline;
 500         INTN timeout_remain;
 501         INT16 idx;
 502         BOOLEAN exit = FALSE;
 503         BOOLEAN run = TRUE;
 504         BOOLEAN wait = FALSE;
 505
 506         graphics_mode(FALSE);
 507         uefi_call_wrapper(ST->ConIn->Reset, 2, ST->ConIn, FALSE);
 508         uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE);
 509         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 510         uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);
 511
 512         err = uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &x_max, &y_max);
 513         if (EFI_ERROR(err)) {
 514                 x_max = 80;
 515                 y_max = 25;
 516         }
 517
 518         /* we check 10 times per second for a keystroke */
 519         if (config->timeout_sec > 0)
 520                 timeout_remain = config->timeout_sec * 10;
 521         else
 522                 timeout_remain = -1;
 523
 524         idx_highlight = config->idx_default;
 525         idx_highlight_prev = 0;
 526
 527         visible_max = y_max - 2;
 528
 529         if ((UINTN)config->idx_default >= visible_max)
 530                 idx_first = config->idx_default-1;
 531         else
 532                 idx_first = 0;
 533
 534         idx_last = idx_first + visible_max-1;
 535
 536         refresh = TRUE;
 537         highlight = FALSE;
 538
 539         /* length of the longest entry */
 540         line_width = 5;
 541         for (i = 0; i < config->entry_count; i++) {
 542                 UINTN entry_len;
 543
 544                 entry_len = StrLen(config->entries[i]->title_show);
 545                 if (line_width < entry_len)
 546                         line_width = entry_len;
 547         }
 548         if (line_width > x_max-6)
 549                 line_width = x_max-6;
 550
 551         /* offsets to center the entries on the screen */
 552         x_start = (x_max - (line_width)) / 2;
 553         if (config->entry_count < visible_max)
 554                 y_start = ((visible_max - config->entry_count) / 2) + 1;
 555         else
 556                 y_start = 0;
 557
 558         /* menu entries title lines */
 559         lines = AllocatePool(sizeof(CHAR16 *) * config->entry_count);
 560         for (i = 0; i < config->entry_count; i++) {
 561                 UINTN j, k;
 562
 563                 lines[i] = AllocatePool(((x_max+1) * sizeof(CHAR16)));
 564                 for (j = 0; j < x_start; j++)
 565                         lines[i][j] = ' ';
 566
 567                 for (k = 0; config->entries[i]->title_show[k] != '\0' && j < x_max; j++, k++)
 568                         lines[i][j] = config->entries[i]->title_show[k];
 569
 570                 for (; j < x_max; j++)
 571                         lines[i][j] = ' ';
 572                 lines[i][x_max] = '\0';
 573         }
 574
 575         status = NULL;
 576         clearline = AllocatePool((x_max+1) * sizeof(CHAR16));
 577         for (i = 0; i < x_max; i++)
 578                 clearline[i] = ' ';
 579         clearline[i] = 0;
 580
 581         while (!exit) {
 582                 UINT64 key;
 583
 584                 if (refresh) {
 585                         for (i = 0; i < config->entry_count; i++) {
 586                                 if (i < idx_first || i > idx_last)
 587                                         continue;
 588                                 uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + i - idx_first);
 589                                 if (i == idx_highlight)
 590                                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut,
 591                                                           EFI_BLACK|EFI_BACKGROUND_LIGHTGRAY);
 592                                 else
 593                                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut,
 594                                                           EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 595                                 uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[i]);
 596                                 if ((INTN)i == config->idx_default_efivar) {
 597                                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + i - idx_first);
 598                                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>");
 599                                 }
 600                         }
 601                         refresh = FALSE;
 602                 } else if (highlight) {
 603                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + idx_highlight_prev - idx_first);
 604                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 605                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[idx_highlight_prev]);
 606                         if ((INTN)idx_highlight_prev == config->idx_default_efivar) {
 607                                 uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + idx_highlight_prev - idx_first);
 608                                 uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>");
 609                         }
 610
 611                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_start + idx_highlight - idx_first);
 612                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_BLACK|EFI_BACKGROUND_LIGHTGRAY);
 613                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, lines[idx_highlight]);
 614                         if ((INTN)idx_highlight == config->idx_default_efivar) {
 615                                 uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, x_start-3, y_start + idx_highlight - idx_first);
 616                                 uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, L"=>");
 617                         }
 618                         highlight = FALSE;
 619                 }
 620
 621                 if (timeout_remain > 0) {
 622                         FreePool(status);
 623                         status = PoolPrint(L"Boot in %d sec.", (timeout_remain + 5) / 10);
 624                 }
 625
 626                 /* print status at last line of screen */
 627                 if (status) {
 628                         UINTN len;
 629                         UINTN x;
 630
 631                         /* center line */
 632                         len = StrLen(status);
 633                         if (len < x_max)
 634                                 x = (x_max - len) / 2;
 635                         else
 636                                 x = 0;
 637                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 638                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1);
 639                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline + (x_max - x));
 640                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, status);
 641                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1 + x + len);
 642                 }
 643
 644                 err = console_key_read(&key, wait);
 645                 if (EFI_ERROR(err)) {
 646                         /* timeout reached */
 647                         if (timeout_remain == 0) {
 648                                 exit = TRUE;
 649                                 break;
 650                         }
 651
 652                         /* sleep and update status */
 653                         if (timeout_remain > 0) {
 654                                 uefi_call_wrapper(BS->Stall, 1, 100 * 1000);
 655                                 timeout_remain--;
 656                                 continue;
 657                         }
 658
 659                         /* timeout disabled, wait for next key */
 660                         wait = TRUE;
 661                         continue;
 662                 }
 663
 664                 timeout_remain = -1;
 665
 666                 /* clear status after keystroke */
 667                 if (status) {
 668                         FreePool(status);
 669                         status = NULL;
 670                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 671                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1);
 672                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1);
 673                 }
 674
 675                 idx_highlight_prev = idx_highlight;
 676
 677                 switch (key) {
 678                 case KEYPRESS(0, SCAN_UP, 0):
 679                 case KEYPRESS(0, 0, 'k'):
 680                         if (idx_highlight > 0)
 681                                 idx_highlight--;
 682                         break;
 683
 684                 case KEYPRESS(0, SCAN_DOWN, 0):
 685                 case KEYPRESS(0, 0, 'j'):
 686                         if (idx_highlight < config->entry_count-1)
 687                                 idx_highlight++;
 688                         break;
 689
 690                 case KEYPRESS(0, SCAN_HOME, 0):
 691                 case KEYPRESS(EFI_ALT_PRESSED, 0, '<'):
 692                         if (idx_highlight > 0) {
 693                                 refresh = TRUE;
 694                                 idx_highlight = 0;
 695                         }
 696                         break;
 697
 698                 case KEYPRESS(0, SCAN_END, 0):
 699                 case KEYPRESS(EFI_ALT_PRESSED, 0, '>'):
 700                         if (idx_highlight < config->entry_count-1) {
 701                                 refresh = TRUE;
 702                                 idx_highlight = config->entry_count-1;
 703                         }
 704                         break;
 705
 706                 case KEYPRESS(0, SCAN_PAGE_UP, 0):
 707                         if (idx_highlight > visible_max)
 708                                 idx_highlight -= visible_max;
 709                         else
 710                                 idx_highlight = 0;
 711                         break;
 712
 713                 case KEYPRESS(0, SCAN_PAGE_DOWN, 0):
 714                         idx_highlight += visible_max;
 715                         if (idx_highlight > config->entry_count-1)
 716                                 idx_highlight = config->entry_count-1;
 717                         break;
 718
 719                 case KEYPRESS(0, 0, CHAR_LINEFEED):
 720                 case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN):
 721                         exit = TRUE;
 722                         break;
 723
 724                 case KEYPRESS(0, SCAN_F1, 0):
 725                 case KEYPRESS(0, 0, 'h'):
 726                 case KEYPRESS(0, 0, '?'):
 727                         status = StrDuplicate(L"(d)efault, (t/T)timeout, (e)dit, (v)ersion (Q)uit (P)rint (h)elp");
 728                         break;
 729
 730                 case KEYPRESS(0, 0, 'Q'):
 731                         exit = TRUE;
 732                         run = FALSE;
 733                         break;
 734
 735                 case KEYPRESS(0, 0, 'd'):
 736                         if (config->idx_default_efivar != (INTN)idx_highlight) {
 737                                 /* store the selected entry in a persistent EFI variable */
 738                                 efivar_set(L"LoaderEntryDefault", config->entries[idx_highlight]->file, TRUE);
 739                                 config->idx_default_efivar = idx_highlight;
 740                                 status = StrDuplicate(L"Default boot entry selected.");
 741                         } else {
 742                                 /* clear the default entry EFI variable */
 743                                 efivar_set(L"LoaderEntryDefault", NULL, TRUE);
 744                                 config->idx_default_efivar = -1;
 745                                 status = StrDuplicate(L"Default boot entry cleared.");
 746                         }
 747                         refresh = TRUE;
 748                         break;
 749
 750                 case KEYPRESS(0, 0, '-'):
 751                 case KEYPRESS(0, 0, 'T'):
 752                         if (config->timeout_sec_efivar > 0) {
 753                                 config->timeout_sec_efivar--;
 754                                 efivar_set_int(L"LoaderConfigTimeout", config->timeout_sec_efivar, TRUE);
 755                                 if (config->timeout_sec_efivar > 0)
 756                                         status = PoolPrint(L"Menu timeout set to %d sec.", config->timeout_sec_efivar);
 757                                 else
 758                                         status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu.");
 759                         } else if (config->timeout_sec_efivar <= 0){
 760                                 config->timeout_sec_efivar = -1;
 761                                 efivar_set(L"LoaderConfigTimeout", NULL, TRUE);
 762                                 if (config->timeout_sec_config > 0)
 763                                         status = PoolPrint(L"Menu timeout of %d sec is defined by configuration file.",
 764                                                            config->timeout_sec_config);
 765                                 else
 766                                         status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu.");
 767                         }
 768                         break;
 769
 770                 case KEYPRESS(0, 0, '+'):
 771                 case KEYPRESS(0, 0, 't'):
 772                         if (config->timeout_sec_efivar == -1 && config->timeout_sec_config == 0)
 773                                 config->timeout_sec_efivar++;
 774                         config->timeout_sec_efivar++;
 775                         efivar_set_int(L"LoaderConfigTimeout", config->timeout_sec_efivar, TRUE);
 776                         if (config->timeout_sec_efivar > 0)
 777                                 status = PoolPrint(L"Menu timeout set to %d sec.",
 778                                                    config->timeout_sec_efivar);
 779                         else
 780                                 status = StrDuplicate(L"Menu disabled. Hold down key at bootup to show menu.");
 781                         break;
 782
 783                 case KEYPRESS(0, 0, 'e'):
 784                         /* only the options of configured entries can be edited */
 785                         if (config->entries[idx_highlight]->type == LOADER_UNDEFINED)
 786                                 break;
 787                         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);
 788                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1);
 789                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1);
 790                         if (line_edit(config->entries[idx_highlight]->options, &config->options_edit, x_max-1, y_max-1))
 791                                 exit = TRUE;
 792                         uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_max-1);
 793                         uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, clearline+1);
 794                         break;
 795
 796                 case KEYPRESS(0, 0, 'v'):
 797                         status = PoolPrint(L"gummiboot " VERSION ", UEFI %d.%02d, %s %d.%02d",
 798                                            ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff,
 799                                            ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);
 800                         break;
 801
 802                 case KEYPRESS(0, 0, 'P'):
 803                         print_status(config, loaded_image_path);
 804                         refresh = TRUE;
 805                         break;
 806
 807                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'l'):
 808                 case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('l')):
 809                         refresh = TRUE;
 810                         break;
 811
 812                 default:
 813                         /* jump with a hotkey directly to a matching entry */
 814                         idx = entry_lookup_key(config, idx_highlight+1, KEYCHAR(key));
 815                         if (idx < 0)
 816                                 break;
 817                         idx_highlight = idx;
 818                         refresh = TRUE;
 819                 }
 820
 821                 if (idx_highlight > idx_last) {
 822                         idx_last = idx_highlight;
 823                         idx_first = 1 + idx_highlight - visible_max;
 824                         refresh = TRUE;
 825                 }
 826                 if (idx_highlight < idx_first) {
 827                         idx_first = idx_highlight;
 828                         idx_last = idx_highlight + visible_max-1;
 829                         refresh = TRUE;
 830                 }
 831
 832                 idx_last = idx_first + visible_max-1;
 833
 834                 if (!refresh && idx_highlight != idx_highlight_prev)
 835                         highlight = TRUE;
 836         }
 837
 838         *chosen_entry = config->entries[idx_highlight];
 839
 840         for (i = 0; i < config->entry_count; i++)
 841                 FreePool(lines[i]);
 842         FreePool(lines);
 843         FreePool(clearline);
 844
 845         uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_WHITE|EFI_BACKGROUND_BLACK);
 846         uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);
 847         return run;
 848 }
 849
 850 static VOID config_add_entry(Config *config, ConfigEntry *entry) {
 851         if ((config->entry_count & 15) == 0) {
 852                 UINTN i;
 853
 854                 i = config->entry_count + 16;
 855                 if (config->entry_count == 0)
 856                         config->entries = AllocatePool(sizeof(VOID *) * i);
 857                 else
 858                         config->entries = ReallocatePool(config->entries,
 859                                                          sizeof(VOID *) * config->entry_count, sizeof(VOID *) * i);
 860         }
 861         config->entries[config->entry_count++] = entry;
 862 }
 863
 864 static VOID config_entry_free(ConfigEntry *entry) {
 865         FreePool(entry->title_show);
 866         FreePool(entry->title);
 867         FreePool(entry->machine_id);
 868         FreePool(entry->loader);
 869         FreePool(entry->options);
 870 }
 871
 872 static BOOLEAN is_digit(CHAR16 c)
 873 {
 874         return (c >= '0') && (c <= '9');
 875 }
 876
 877 static UINTN c_order(CHAR16 c)
 878 {
 879         if (c == '\0')
 880                 return 0;
 881         if (is_digit(c))
 882                 return 0;
 883         else if ((c >= 'a') && (c <= 'z'))
 884                 return c;
 885         else
 886                 return c + 0x10000;
 887 }
 888
 889 static INTN str_verscmp(CHAR16 *s1, CHAR16 *s2)
 890 {
 891         CHAR16 *os1 = s1;
 892         CHAR16 *os2 = s2;
 893
 894         while (*s1 || *s2) {
 895                 INTN first;
 896
 897                 while ((*s1 && !is_digit(*s1)) || (*s2 && !is_digit(*s2))) {
 898                         INTN order;
 899
 900                         order = c_order(*s1) - c_order(*s2);
 901                         if (order)
 902                                 return order;
 903                         s1++;
 904                         s2++;
 905                 }
 906
 907                 while (*s1 == '0')
 908                         s1++;
 909                 while (*s2 == '0')
 910                         s2++;
 911
 912                 first = 0;
 913                 while (is_digit(*s1) && is_digit(*s2)) {
 914                         if (first == 0)
 915                                 first = *s1 - *s2;
 916                         s1++;
 917                         s2++;
 918                 }
 919
 920                 if (is_digit(*s1))
 921                         return 1;
 922                 if (is_digit(*s2))
 923                         return -1;
 924
 925                 if (first)
 926                         return first;
 927         }
 928
 929         return StrCmp(os1, os2);
 930 }
 931
 932 static CHAR8 *line_get_key_value(CHAR8 *content, UINTN *pos, CHAR8 **key_ret, CHAR8 **value_ret) {
 933         CHAR8 *line;
 934         UINTN linelen;
 935         CHAR8 *value;
 936
 937 skip:
 938         line = content + *pos;
 939         if (*line == '\0')
 940                 return NULL;
 941
 942         linelen = 0;
 943         while (line[linelen] && !strchra((CHAR8 *)"\n\r", line[linelen]))
 944                linelen++;
 945
 946         /* move pos to next line */
 947         *pos += linelen;
 948         if (content[*pos])
 949                 (*pos)++;
 950
 951         /* empty line */
 952         if (linelen == 0)
 953                 goto skip;
 954
 955         /* terminate line */
 956         line[linelen] = '\0';
 957
 958         /* remove leading whitespace */
 959         while (strchra((CHAR8 *)" \t", *line)) {
 960                 line++;
 961                 linelen--;
 962         }
 963
 964         /* remove trailing whitespace */
 965         while (linelen > 0 && strchra((CHAR8 *)" \t", line[linelen-1]))
 966                 linelen--;
 967         line[linelen] = '\0';
 968
 969         if (*line == '#')
 970                 goto skip;
 971
 972         /* split key/value */
 973         value = line;
 974         while (*value && !strchra((CHAR8 *)" \t", *value))
 975                 value++;
 976         if (*value == '\0')
 977                 goto skip;
 978         *value = '\0';
 979         value++;
 980         while (*value && strchra((CHAR8 *)" \t", *value))
 981                 value++;
 982
 983         *key_ret = line;
 984         *value_ret = value;
 985         return line;
 986 }
 987
 988 static VOID config_defaults_load_from_file(Config *config, CHAR8 *content) {
 989         CHAR8 *line;
 990         UINTN pos = 0;
 991         CHAR8 *key, *value;
 992
 993         line = content;
 994         while ((line = line_get_key_value(content, &pos, &key, &value))) {
 995                 if (strcmpa((CHAR8 *)"timeout", key) == 0) {
 996                         CHAR16 *s;
 997
 998                         s = stra_to_str(value);
 999                         config->timeout_sec_config = Atoi(s);
1000                         config->timeout_sec = config->timeout_sec_config;
1001                         FreePool(s);
1002                         continue;
1003                 }
1004
1005                 if (strcmpa((CHAR8 *)"default", key) == 0) {
1006                         config->entry_default_pattern = stra_to_str(value);
1007                         StrLwr(config->entry_default_pattern);
1008                         continue;
1009                 }
1010
1011                 if (strcmpa((CHAR8 *)"splash", key) == 0) {
1012                         config->splash = stra_to_path(value);
1013                         continue;
1014                 }
1015         }
1016 }
1017
1018 static VOID config_entry_add_from_file(Config *config, EFI_HANDLE *device, CHAR16 *file, CHAR8 *content, CHAR16 *loaded_image_path) {
1019         ConfigEntry *entry;
1020         CHAR8 *line;
1021         UINTN pos = 0;
1022         CHAR8 *key, *value;
1023         UINTN len;
1024         CHAR16 *initrd = NULL;
1025
1026         entry = AllocateZeroPool(sizeof(ConfigEntry));
1027
1028         line = content;
1029         while ((line = line_get_key_value(content, &pos, &key, &value))) {
1030                 if (strcmpa((CHAR8 *)"title", key) == 0) {
1031                         FreePool(entry->title);
1032                         entry->title = stra_to_str(value);
1033                         continue;
1034                 }
1035
1036                 if (strcmpa((CHAR8 *)"version", key) == 0) {
1037                         FreePool(entry->version);
1038                         entry->version = stra_to_str(value);
1039                         continue;
1040                 }
1041
1042                 if (strcmpa((CHAR8 *)"machine-id", key) == 0) {
1043                         FreePool(entry->machine_id);
1044                         entry->machine_id = stra_to_str(value);
1045                         continue;
1046                 }
1047
1048                 if (strcmpa((CHAR8 *)"linux", key) == 0) {
1049                         FreePool(entry->loader);
1050                         entry->type = LOADER_LINUX;
1051                         entry->loader = stra_to_path(value);
1052                         entry->key = 'l';
1053                         continue;
1054                 }
1055
1056                 if (strcmpa((CHAR8 *)"efi", key) == 0) {
1057                         entry->type = LOADER_EFI;
1058                         FreePool(entry->loader);
1059                         entry->loader = stra_to_path(value);
1060
1061                         /* do not add an entry for ourselves */
1062                         if (StriCmp(entry->loader, loaded_image_path) == 0) {
1063                                 entry->type = LOADER_UNDEFINED;
1064                                 break;
1065                         }
1066                         continue;
1067                 }
1068
1069                 if (strcmpa((CHAR8 *)"initrd", key) == 0) {
1070                         CHAR16 *new;
1071
1072                         new = stra_to_path(value);
1073                         if (initrd) {
1074                                 CHAR16 *s;
1075
1076                                 s = PoolPrint(L"%s initrd=%s", initrd, new);
1077                                 FreePool(initrd);
1078                                 initrd = s;
1079                         } else
1080                                 initrd = PoolPrint(L"initrd=%s", new);
1081                         FreePool(new);
1082                         continue;
1083                 }
1084
1085                 if (strcmpa((CHAR8 *)"options", key) == 0) {
1086                         CHAR16 *new;
1087
1088                         new = stra_to_str(value);
1089                         if (entry->options) {
1090                                 CHAR16 *s;
1091
1092                                 s = PoolPrint(L"%s %s", entry->options, new);
1093                                 FreePool(entry->options);
1094                                 entry->options = s;
1095                         } else {
1096                                 entry->options = new;
1097                                 new = NULL;
1098                         }
1099                         FreePool(new);
1100                         continue;
1101                 }
1102
1103                 if (strcmpa((CHAR8 *)"splash", key) == 0) {
1104                         FreePool(entry->splash);
1105                         entry->splash = stra_to_path(value);
1106                         continue;
1107                 }
1108         }
1109
1110         if (entry->type == LOADER_UNDEFINED) {
1111                 config_entry_free(entry);
1112                 FreePool(initrd);
1113                 FreePool(entry);
1114                 return;
1115         }
1116
1117         /* add initrd= to options */
1118         if (entry->type == LOADER_LINUX && initrd) {
1119                 if (entry->options) {
1120                         CHAR16 *s;
1121
1122                         s = PoolPrint(L"%s %s", initrd, entry->options);
1123                         FreePool(entry->options);
1124                         entry->options = s;
1125                 } else {
1126                         entry->options = initrd;
1127                         initrd = NULL;
1128                 }
1129         }
1130         FreePool(initrd);
1131
1132         if (entry->machine_id) {
1133                 CHAR16 *var;
1134
1135                 /* append additional options from EFI variables for this machine-id */
1136                 var = PoolPrint(L"LoaderEntryOptions-%s", entry->machine_id);
1137                 if (var) {
1138                         CHAR16 *s;
1139
1140                         if (efivar_get(var, &s) == EFI_SUCCESS) {
1141                                 if (entry->options) {
1142                                         CHAR16 *s2;
1143
1144                                         s2 = PoolPrint(L"%s %s", entry->options, s);
1145                                         FreePool(entry->options);
1146                                         entry->options = s2;
1147                                 } else
1148                                         entry->options = s;
1149                         }
1150                         FreePool(var);
1151                 }
1152
1153                 var = PoolPrint(L"LoaderEntryOptionsOneShot-%s", entry->machine_id);
1154                 if (var) {
1155                         CHAR16 *s;
1156
1157                         if (efivar_get(var, &s) == EFI_SUCCESS) {
1158                                 if (entry->options) {
1159                                         CHAR16 *s2;
1160
1161                                         s2 = PoolPrint(L"%s %s", entry->options, s);
1162                                         FreePool(entry->options);
1163                                         entry->options = s2;
1164                                 } else
1165                                         entry->options = s;
1166                                 efivar_set(var, NULL, TRUE);
1167                         }
1168                         FreePool(var);
1169                 }
1170         }
1171
1172         entry->device = device;
1173         entry->file = StrDuplicate(file);
1174         len = StrLen(entry->file);
1175         /* remove ".conf" */
1176         if (len > 5)
1177                 entry->file[len - 5] = '\0';
1178         StrLwr(entry->file);
1179
1180         config_add_entry(config, entry);
1181 }
1182
1183 static VOID config_load(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path) {
1184         EFI_FILE_HANDLE entries_dir;
1185         EFI_STATUS err;
1186         CHAR8 *content = NULL;
1187         UINTN sec;
1188         UINTN len;
1189         UINTN i;
1190
1191         len = file_read(root_dir, L"\\loader\\loader.conf", &content);
1192         if (len > 0)
1193                 config_defaults_load_from_file(config, content);
1194         FreePool(content);
1195
1196         err = efivar_get_int(L"LoaderConfigTimeout", &sec);
1197         if (!EFI_ERROR(err)) {
1198                 config->timeout_sec_efivar = sec;
1199                 config->timeout_sec = sec;
1200         } else
1201                 config->timeout_sec_efivar = -1;
1202
1203         err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &entries_dir, L"\\loader\\entries", EFI_FILE_MODE_READ, 0ULL);
1204         if (!EFI_ERROR(err)) {
1205                 for (;;) {
1206                         CHAR16 buf[256];
1207                         UINTN bufsize;
1208                         EFI_FILE_INFO *f;
1209                         CHAR8 *content = NULL;
1210                         UINTN len;
1211
1212                         bufsize = sizeof(buf);
1213                         err = uefi_call_wrapper(entries_dir->Read, 3, entries_dir, &bufsize, buf);
1214                         if (bufsize == 0 || EFI_ERROR(err))
1215                                 break;
1216
1217                         f = (EFI_FILE_INFO *) buf;
1218                         if (f->FileName[0] == '.')
1219                                 continue;
1220                         if (f->Attribute & EFI_FILE_DIRECTORY)
1221                                 continue;
1222                         len = StrLen(f->FileName);
1223                         if (len < 6)
1224                                 continue;
1225                         if (StriCmp(f->FileName + len - 5, L".conf") != 0)
1226                                 continue;
1227
1228                         len = file_read(entries_dir, f->FileName, &content);
1229                         if (len > 0)
1230                                 config_entry_add_from_file(config, device, f->FileName, content, loaded_image_path);
1231                         FreePool(content);
1232                 }
1233                 uefi_call_wrapper(entries_dir->Close, 1, entries_dir);
1234         }
1235
1236         /* sort entries after version number */
1237         for (i = 1; i < config->entry_count; i++) {
1238                 BOOLEAN more;
1239                 UINTN k;
1240
1241                 more = FALSE;
1242                 for (k = 0; k < config->entry_count - i; k++) {
1243                         ConfigEntry *entry;
1244
1245                         if (str_verscmp(config->entries[k]->file, config->entries[k+1]->file) <= 0)
1246                                 continue;
1247                         entry = config->entries[k];
1248                         config->entries[k] = config->entries[k+1];
1249                         config->entries[k+1] = entry;
1250                         more = TRUE;
1251                 }
1252                 if (!more)
1253                         break;
1254         }
1255 }
1256
1257 static VOID config_default_entry_select(Config *config) {
1258         CHAR16 *var;
1259         EFI_STATUS err;
1260         UINTN i;
1261
1262         /*
1263          * The EFI variable to specify a boot entry for the next, and only the
1264          * next reboot. The variable is always cleared directly after it is read.
1265          */
1266         err = efivar_get(L"LoaderEntryOneShot", &var);
1267         if (!EFI_ERROR(err)) {
1268                 BOOLEAN found = FALSE;
1269
1270                 for (i = 0; i < config->entry_count; i++) {
1271                         if (StrCmp(config->entries[i]->file, var) == 0) {
1272                                 config->idx_default = i;
1273                                 found = TRUE;
1274                                 break;
1275                         }
1276                 }
1277
1278                 config->entry_oneshot = StrDuplicate(var);
1279                 efivar_set(L"LoaderEntryOneShot", NULL, TRUE);
1280                 FreePool(var);
1281                 if (found)
1282                         return;
1283         }
1284
1285         /*
1286          * The EFI variable to select the default boot entry overrides the
1287          * configured pattern. The variable can be set and cleared by pressing
1288          * the 'd' key in the loader selection menu, the entry is marked with
1289          * an '*'.
1290          */
1291         err = efivar_get(L"LoaderEntryDefault", &var);
1292         if (!EFI_ERROR(err)) {
1293                 BOOLEAN found = FALSE;
1294
1295                 for (i = 0; i < config->entry_count; i++) {
1296                         if (StrCmp(config->entries[i]->file, var) == 0) {
1297                                 config->idx_default = i;
1298                                 config->idx_default_efivar = i;
1299                                 found = TRUE;
1300                                 break;
1301                         }
1302                 }
1303                 FreePool(var);
1304                 if (found)
1305                         return;
1306         }
1307         config->idx_default_efivar = -1;
1308
1309         if (config->entry_count == 0)
1310                 return;
1311
1312         /*
1313          * Match the pattern from the end of the list to the start, find last
1314          * entry (largest number) matching the given pattern.
1315          */
1316         if (config->entry_default_pattern) {
1317                 i = config->entry_count;
1318                 while (i--) {
1319                         if (config->entries[i]->no_autoselect)
1320                                 continue;
1321                         if (MetaiMatch(config->entries[i]->file, config->entry_default_pattern)) {
1322                                 config->idx_default = i;
1323                                 return;
1324                         }
1325                 }
1326         }
1327
1328         /* select the last suitable entry */
1329         i = config->entry_count;
1330         while (i--) {
1331                 if (config->entries[i]->no_autoselect)
1332                         continue;
1333                 config->idx_default = i;
1334                 return;
1335         }
1336
1337         /* no entry found */
1338         config->idx_default = -1;
1339 }
1340
1341 /* generate a unique title, avoiding non-distinguishable menu entries */
1342 static VOID config_title_generate(Config *config) {
1343         UINTN i, k;
1344         BOOLEAN unique;
1345
1346         /* set title */
1347         for (i = 0; i < config->entry_count; i++) {
1348                 CHAR16 *title;
1349
1350                 FreePool(config->entries[i]->title_show);
1351                 title = config->entries[i]->title;
1352                 if (!title)
1353                         title = config->entries[i]->file;
1354                 config->entries[i]->title_show = StrDuplicate(title);
1355         }
1356
1357         unique = TRUE;
1358         for (i = 0; i < config->entry_count; i++) {
1359                 for (k = 0; k < config->entry_count; k++) {
1360                         if (i == k)
1361                                 continue;
1362                         if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0)
1363                                 continue;
1364
1365                         unique = FALSE;
1366                         config->entries[i]->non_unique = TRUE;
1367                         config->entries[k]->non_unique = TRUE;
1368                 }
1369         }
1370         if (unique)
1371                 return;
1372
1373         /* add version to non-unique titles */
1374         for (i = 0; i < config->entry_count; i++) {
1375                 CHAR16 *s;
1376
1377                 if (!config->entries[i]->non_unique)
1378                         continue;
1379                 if (!config->entries[i]->version)
1380                         continue;
1381
1382                 s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, config->entries[i]->version);
1383                 FreePool(config->entries[i]->title_show);
1384                 config->entries[i]->title_show = s;
1385                 config->entries[i]->non_unique = FALSE;
1386         }
1387
1388         unique = TRUE;
1389         for (i = 0; i < config->entry_count; i++) {
1390                 for (k = 0; k < config->entry_count; k++) {
1391                         if (i == k)
1392                                 continue;
1393                         if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0)
1394                                 continue;
1395
1396                         unique = FALSE;
1397                         config->entries[i]->non_unique = TRUE;
1398                         config->entries[k]->non_unique = TRUE;
1399                 }
1400         }
1401         if (unique)
1402                 return;
1403
1404         /* add machine-id to non-unique titles */
1405         for (i = 0; i < config->entry_count; i++) {
1406                 CHAR16 *s;
1407                 CHAR16 *m;
1408
1409                 if (!config->entries[i]->non_unique)
1410                         continue;
1411                 if (!config->entries[i]->machine_id)
1412                         continue;
1413
1414                 m = StrDuplicate(config->entries[i]->machine_id);
1415                 m[8] = '\0';
1416                 s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, m);
1417                 FreePool(config->entries[i]->title_show);
1418                 config->entries[i]->title_show = s;
1419                 config->entries[i]->non_unique = FALSE;
1420                 FreePool(m);
1421         }
1422
1423         unique = TRUE;
1424         for (i = 0; i < config->entry_count; i++) {
1425                 for (k = 0; k < config->entry_count; k++) {
1426                         if (i == k)
1427                                 continue;
1428                         if (StrCmp(config->entries[i]->title_show, config->entries[k]->title_show) != 0)
1429                                 continue;
1430
1431                         unique = FALSE;
1432                         config->entries[i]->non_unique = TRUE;
1433                         config->entries[k]->non_unique = TRUE;
1434                 }
1435         }
1436         if (unique)
1437                 return;
1438
1439         /* add file name to non-unique titles */
1440         for (i = 0; i < config->entry_count; i++) {
1441                 CHAR16 *s;
1442
1443                 if (!config->entries[i]->non_unique)
1444                         continue;
1445                 s = PoolPrint(L"%s (%s)", config->entries[i]->title_show, config->entries[i]->file);
1446                 FreePool(config->entries[i]->title_show);
1447                 config->entries[i]->title_show = s;
1448                 config->entries[i]->non_unique = FALSE;
1449         }
1450 }
1451
1452 static BOOLEAN config_entry_add_call(Config *config, CHAR16 *title, EFI_STATUS (*call)(void)) {
1453         ConfigEntry *entry;
1454
1455         entry = AllocateZeroPool(sizeof(ConfigEntry));
1456         entry->title = StrDuplicate(title);
1457         entry->call = call;
1458         entry->no_autoselect = TRUE;
1459         config_add_entry(config, entry);
1460         return TRUE;
1461 }
1462
1463 static BOOLEAN config_entry_add_loader(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path,
1464                                        CHAR16 *file, CHAR16 key, CHAR16 *title, CHAR16 *loader) {
1465         EFI_FILE_HANDLE handle;
1466         EFI_STATUS err;
1467         ConfigEntry *entry;
1468
1469         /* do not add an entry for ourselves */
1470         if (loaded_image_path && StriCmp(loader, loaded_image_path) == 0)
1471                 return FALSE;
1472
1473         /* check existence */
1474         err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &handle, loader, EFI_FILE_MODE_READ, 0ULL);
1475         if (EFI_ERROR(err))
1476                 return FALSE;
1477         uefi_call_wrapper(handle->Close, 1, handle);
1478
1479         entry = AllocateZeroPool(sizeof(ConfigEntry));
1480         entry->title = StrDuplicate(title);
1481         entry->device = device;
1482         entry->loader = StrDuplicate(loader);
1483         entry->file = StrDuplicate(file);
1484         StrLwr(entry->file);
1485         entry->no_autoselect = TRUE;
1486         entry->key = key;
1487         config_add_entry(config, entry);
1488         return TRUE;
1489 }
1490
1491 static BOOLEAN config_entry_add_loader_auto(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path,
1492                                          CHAR16 *file, CHAR16 key, CHAR16 *title, CHAR16 *loader) {
1493         if (!config_entry_add_loader(config, device, root_dir, loaded_image_path, file, key, title, loader))
1494                 return FALSE;
1495
1496         /* export identifiers of automatically added entries */
1497         if (config->entries_auto) {
1498                 CHAR16 *s;
1499
1500                 s = PoolPrint(L"%s %s", config->entries_auto, file);
1501                 FreePool(config->entries_auto);
1502                 config->entries_auto = s;
1503         } else
1504                 config->entries_auto = StrDuplicate(file);
1505
1506         return TRUE;
1507 }
1508
1509 static VOID config_entry_add_osx(Config *config) {
1510         EFI_STATUS err;
1511         UINTN handle_count = 0;
1512         EFI_HANDLE *handles = NULL;
1513
1514         err = LibLocateHandle(ByProtocol, &FileSystemProtocol, NULL, &handle_count, &handles);
1515         if (!EFI_ERROR(err)) {
1516                 UINTN i;
1517
1518                 for (i = 0; i < handle_count; i++) {
1519                         EFI_FILE *root;
1520                         BOOLEAN found;
1521
1522                         root = LibOpenRoot(handles[i]);
1523                         if (!root)
1524                                 continue;
1525                         found = config_entry_add_loader_auto(config, handles[i], root, NULL, L"auto-osx", 'a', L"OS X",
1526                                                              L"\\System\\Library\\CoreServices\\boot.efi");
1527                         uefi_call_wrapper(root->Close, 1, root);
1528                         if (found)
1529                                 break;
1530                 }
1531
1532                 FreePool(handles);
1533         }
1534 }
1535
1536 static EFI_STATUS image_start(EFI_HANDLE parent_image, const Config *config, const ConfigEntry *entry) {
1537         EFI_STATUS err;
1538         EFI_HANDLE image;
1539         EFI_DEVICE_PATH *path;
1540         CHAR16 *options;
1541
1542         path = FileDevicePath(entry->device, entry->loader);
1543         if (!path) {
1544                 Print(L"Error getting device path.");
1545                 uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1546                 return EFI_INVALID_PARAMETER;
1547         }
1548
1549         err = uefi_call_wrapper(BS->LoadImage, 6, FALSE, parent_image, path, NULL, 0, &image);
1550         if (EFI_ERROR(err)) {
1551                 Print(L"Error loading %s: %r", entry->loader, err);
1552                 uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1553                 goto out;
1554         }
1555
1556         if (config->options_edit)
1557                 options = config->options_edit;
1558         else if (entry->options)
1559                 options = entry->options;
1560         else
1561                 options = NULL;
1562         if (options) {
1563                 EFI_LOADED_IMAGE *loaded_image;
1564
1565                 err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (void **)&loaded_image,
1566                                         parent_image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
1567                 if (EFI_ERROR(err)) {
1568                         Print(L"Error getting LoadedImageProtocol handle: %r", err);
1569                         uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1570                         goto out_unload;
1571                 }
1572                 loaded_image->LoadOptions = options;
1573                 loaded_image->LoadOptionsSize = (StrLen(loaded_image->LoadOptions)+1) * sizeof(CHAR16);
1574         }
1575
1576         efivar_set_time_usec(L"LoaderTimeExecUSec", 0);
1577         err = uefi_call_wrapper(BS->StartImage, 3, image, NULL, NULL);
1578 out_unload:
1579         uefi_call_wrapper(BS->UnloadImage, 1, image);
1580 out:
1581         FreePool(path);
1582         return err;
1583 }
1584
1585 static EFI_STATUS reboot_into_firmware(VOID) {
1586         CHAR8 *b;
1587         UINTN size;
1588         UINT64 osind;
1589         EFI_STATUS err;
1590
1591         osind = EFI_OS_INDICATIONS_BOOT_TO_FW_UI;
1592
1593         err = efivar_get_raw(&global_guid, L"OsIndications", &b, &size);
1594         if (!EFI_ERROR(err))
1595                 osind |= (UINT64)*b;
1596         FreePool(b);
1597
1598         err = efivar_set_raw(&global_guid, L"OsIndications", (CHAR8 *)&osind, sizeof(UINT64), TRUE);
1599         if (EFI_ERROR(err))
1600                 return err;
1601
1602         err = uefi_call_wrapper(RT->ResetSystem, 4, EfiResetCold, EFI_SUCCESS, 0, NULL);
1603         Print(L"Error calling ResetSystem: %r", err);
1604         uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1605         return err;
1606 }
1607
1608 static VOID config_free(Config *config) {
1609         UINTN i;
1610
1611         for (i = 0; i < config->entry_count; i++)
1612                 config_entry_free(config->entries[i]);
1613         FreePool(config->entries);
1614         FreePool(config->entry_default_pattern);
1615         FreePool(config->options_edit);
1616         FreePool(config->entry_oneshot);
1617         FreePool(config->entries_auto);
1618 }
1619
1620 EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {
1621         CHAR16 *s;
1622         CHAR8 *b;
1623         UINTN size;
1624         EFI_LOADED_IMAGE *loaded_image;
1625         EFI_FILE *root_dir;
1626         CHAR16 *loaded_image_path;
1627         EFI_DEVICE_PATH *device_path;
1628         EFI_STATUS err;
1629         Config config;
1630         UINT64 init_usec;
1631         BOOLEAN menu = FALSE;
1632
1633         InitializeLib(image, sys_table);
1634         init_usec = time_usec();
1635         efivar_set_time_usec(L"LoaderTimeInitUSec", init_usec);
1636         efivar_set(L"LoaderInfo", L"gummiboot " VERSION, FALSE);
1637         s = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);
1638         efivar_set(L"LoaderFirmwareInfo", s, FALSE);
1639         FreePool(s);
1640         s = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff);
1641         efivar_set(L"LoaderFirmwareType", s, FALSE);
1642         FreePool(s);
1643
1644         err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (void **)&loaded_image,
1645                                 image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
1646         if (EFI_ERROR(err)) {
1647                 Print(L"Error getting a LoadedImageProtocol handle: %r ", err);
1648                 uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1649                 return err;
1650         }
1651
1652         /* export the device path this image is started from */
1653         device_path = DevicePathFromHandle(loaded_image->DeviceHandle);
1654         if (device_path) {
1655                 CHAR16 *str;
1656                 EFI_DEVICE_PATH *path, *paths;
1657
1658                 str = DevicePathToStr(device_path);
1659                 efivar_set(L"LoaderDeviceIdentifier", str, FALSE);
1660                 FreePool(str);
1661
1662                 paths = UnpackDevicePath(device_path);
1663                 for (path = paths; !IsDevicePathEnd(path); path = NextDevicePathNode(path)) {
1664                         HARDDRIVE_DEVICE_PATH *drive;
1665                         CHAR16 uuid[37];
1666
1667                         if (DevicePathType(path) != MEDIA_DEVICE_PATH)
1668                                 continue;
1669                         if (DevicePathSubType(path) != MEDIA_HARDDRIVE_DP)
1670                                 continue;
1671                         drive = (HARDDRIVE_DEVICE_PATH *)path;
1672                         if (drive->SignatureType != SIGNATURE_TYPE_GUID)
1673                                 continue;
1674
1675                         GuidToString(uuid, (EFI_GUID *)&drive->Signature);
1676                         efivar_set(L"LoaderDevicePartUUID", uuid, FALSE);
1677                         break;
1678                 }
1679                 FreePool(paths);
1680         }
1681
1682         root_dir = LibOpenRoot(loaded_image->DeviceHandle);
1683         if (!root_dir) {
1684                 Print(L"Unable to open root directory: %r ", err);
1685                 uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1686                 return EFI_LOAD_ERROR;
1687         }
1688
1689         /* the filesystem path to this image, to prevent adding ourselves to the menu */
1690         loaded_image_path = DevicePathToStr(loaded_image->FilePath);
1691         efivar_set(L"LoaderImageIdentifier", loaded_image_path, FALSE);
1692
1693         /* scan "\loader\entries\*.conf" files */
1694         ZeroMem(&config, sizeof(Config));
1695         config_load(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path);
1696
1697         /* if we find some well-known loaders, add them to the end of the list */
1698         config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path,
1699                                      L"auto-windows", 'w', L"Windows Boot Manager", L"\\EFI\\Microsoft\\Boot\\bootmgfw.efi");
1700         config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path,
1701                                      L"auto-efi-shell", 's', L"EFI Shell", L"\\shell" MACHINE_TYPE_NAME ".efi");
1702         config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path,
1703                                      L"auto-efi-default", '\0', L"EFI Default Loader", L"\\EFI\\Boot\\boot" MACHINE_TYPE_NAME ".efi");
1704         config_entry_add_osx(&config);
1705         efivar_set(L"LoaderEntriesAuto", config.entries_auto, FALSE);
1706
1707         if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) {
1708                 UINT64 osind = (UINT64)*b;
1709
1710                 if (osind & EFI_OS_INDICATIONS_BOOT_TO_FW_UI)
1711                         config_entry_add_call(&config, L"Reboot Into Firmware Interface", reboot_into_firmware);
1712                 FreePool(b);
1713         }
1714
1715         if (config.entry_count == 0) {
1716                 Print(L"No loader found. Configuration files in \\loader\\entries\\*.conf are needed.");
1717                 uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1718                 goto out;
1719         }
1720
1721         config_title_generate(&config);
1722
1723         /* select entry by configured pattern or EFI LoaderDefaultEntry= variable*/
1724         config_default_entry_select(&config);
1725
1726         /* if no configured entry to select from was found, enable the menu */
1727         if (config.idx_default == -1) {
1728                 config.idx_default = 0;
1729                 if (config.timeout_sec == 0)
1730                         config.timeout_sec = 10;
1731         }
1732
1733         /* select entry or show menu when key is pressed or timeout is set */
1734         if (config.timeout_sec == 0) {
1735                 UINT64 key;
1736
1737                 err = console_key_read(&key, FALSE);
1738                 if (!EFI_ERROR(err)) {
1739                         INT16 idx;
1740
1741                         /* find matching key in config entries */
1742                         idx = entry_lookup_key(&config, config.idx_default, KEYCHAR(key));
1743                         if (idx >= 0)
1744                                 config.idx_default = idx;
1745                         else
1746                                 menu = TRUE;
1747                 }
1748         } else
1749                 menu = TRUE;
1750
1751         for (;;) {
1752                 ConfigEntry *entry;
1753
1754                 entry = config.entries[config.idx_default];
1755                 if (menu) {
1756                         efivar_set_time_usec(L"LoaderTimeMenuUSec", 0);
1757                         uefi_call_wrapper(BS->SetWatchdogTimer, 4, 0, 0x10000, 0, NULL);
1758                         if (!menu_run(&config, &entry, loaded_image_path))
1759                                 break;
1760
1761                         /* run special entry like "reboot" */
1762                         if (entry->call) {
1763                                 entry->call();
1764                                 continue;
1765                         }
1766                 } else {
1767                         err = EFI_NOT_FOUND;
1768
1769                         /* splash from entry file */
1770                         if (entry->splash)
1771                                 err = graphics_splash(root_dir, entry->splash);
1772
1773                         /* splash from config file */
1774                         if (EFI_ERROR(err) && config.splash)
1775                                 err = graphics_splash(root_dir, config.splash);
1776
1777                         /* default splash */
1778                         if (EFI_ERROR(err))
1779                                 graphics_splash(root_dir, L"\\EFI\\gummiboot\\splash.bmp");
1780                 }
1781
1782                 /* export the selected boot entry to the system */
1783                 efivar_set(L"LoaderEntrySelected", entry->file, FALSE);
1784
1785                 uefi_call_wrapper(BS->SetWatchdogTimer, 4, 5 * 60, 0x10000, 0, NULL);
1786                 err = image_start(image, &config, entry);
1787
1788                 if (err == EFI_ACCESS_DENIED || err == EFI_SECURITY_VIOLATION) {
1789                         /* Platform is secure boot and requested image isn't
1790                          * trusted. Need to go back to prior boot system and
1791                          * install more keys or hashes. Signal failure by
1792                          * returning the error */
1793                         Print(L"\nImage %s gives a security error\n", entry->title);
1794                         Print(L"Please enrol the hash or signature of %s\n", entry->loader);
1795                         uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);
1796                         goto out;
1797                 }
1798
1799                 menu = TRUE;
1800                 config.timeout_sec = 0;
1801         }
1802         err = EFI_SUCCESS;
1803 out:
1804         FreePool(loaded_image_path);
1805         config_free(&config);
1806         uefi_call_wrapper(root_dir->Close, 1, root_dir);
1807         uefi_call_wrapper(BS->CloseProtocol, 4, image, &LoadedImageProtocol, image, NULL);
1808         return err;
1809 }