#include <efi.h>

#include <efilib.h>

#include "console.h"

#include "disk.h"

#include "graphics.h"

#include "linux.h"

#include "pefile.h"

#include "util.h"

#ifndef EFI_OS_INDICATIONS_BOOT_TO_FW_UI

#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001ULL

#endif

static const char __attribute__((used)) magic[] = "#### LoaderInfo: systemd-boot " VERSION " ####";

static const EFI_GUID global_guid = EFI_GLOBAL_VARIABLE;

enum loader_type {

LOADER_UNDEFINED,

LOADER_EFI,

LOADER_LINUX

};

typedef struct {

CHAR16 *file;

CHAR16 *title_show;

CHAR16 *title;

CHAR16 *version;

CHAR16 *machine_id;

EFI_HANDLE *device;

enum loader_type type;

CHAR16 *loader;

CHAR16 *options;

CHAR16 key;

EFI_STATUS (*call)(VOID);

BOOLEAN no_autoselect;

BOOLEAN non_unique;

} ConfigEntry;

typedef struct {

ConfigEntry **entries;

UINTN entry_count;

INTN idx_default;

INTN idx_default_efivar;

UINTN timeout_sec;

UINTN timeout_sec_config;

INTN timeout_sec_efivar;

CHAR16 *entry_default_pattern;

CHAR16 *entry_oneshot;

CHAR16 *options_edit;

BOOLEAN no_editor;

} Config;

static VOID cursor_left(UINTN *cursor, UINTN *first) {

if ((*cursor) > 0)

(*cursor)--;

else if ((*first) > 0)

(*first)--;

}

static VOID cursor_right(UINTN *cursor, UINTN *first, UINTN x_max, UINTN len) {

if ((*cursor)+1 < x_max)

(*cursor)++;

else if ((*first) + (*cursor) < len)

(*first)++;

}

static BOOLEAN line_edit(CHAR16 *line_in, CHAR16 **line_out, UINTN x_max, UINTN y_pos) {

CHAR16 *line;

UINTN size;

UINTN len;

UINTN first;

CHAR16 *print;

UINTN cursor;

UINTN clear;

BOOLEAN exit;

BOOLEAN enter;

if (!line_in)

line_in = L"";

size = StrLen(line_in) + 1024;

line = AllocatePool(size * sizeof(CHAR16));

StrCpy(line, line_in);

len = StrLen(line);

print = AllocatePool((x_max+1) * sizeof(CHAR16));

uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, TRUE);

first = 0;

cursor = 0;

clear = 0;

enter = FALSE;

exit = FALSE;

while (!exit) {

EFI_STATUS err;

UINT64 key;

UINTN i;

i = len - first;

if (i >= x_max-1)

i = x_max-1;

CopyMem(print, line + first, i * sizeof(CHAR16));

while (clear > 0 && i < x_max-1) {

clear--;

print[i++] = ' ';

}

print[i] = '\0';

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, 0, y_pos);

uefi_call_wrapper(ST->ConOut->OutputString, 2, ST->ConOut, print);

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);

err = console_key_read(&key, TRUE);

if (EFI_ERROR(err))

continue;

switch (key) {

case KEYPRESS(0, SCAN_ESC, 0):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'c'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'g'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('c')):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('g')):

exit = TRUE;

break;

case KEYPRESS(0, SCAN_HOME, 0):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'a'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('a')):

/* beginning-of-line */

cursor = 0;

first = 0;

continue;

case KEYPRESS(0, SCAN_END, 0):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'e'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('e')):

/* end-of-line */

cursor = len - first;

if (cursor+1 >= x_max) {

cursor = x_max-1;

first = len - (x_max-1);

}

continue;

case KEYPRESS(0, SCAN_DOWN, 0):

case KEYPRESS(EFI_ALT_PRESSED, 0, 'f'):

case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_RIGHT, 0):

/* forward-word */

while (line[first + cursor] && line[first + cursor] == ' ')

cursor_right(&cursor, &first, x_max, len);

while (line[first + cursor] && line[first + cursor] != ' ')

cursor_right(&cursor, &first, x_max, len);

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);

continue;

case KEYPRESS(0, SCAN_UP, 0):

case KEYPRESS(EFI_ALT_PRESSED, 0, 'b'):

case KEYPRESS(EFI_CONTROL_PRESSED, SCAN_LEFT, 0):

/* backward-word */

if ((first + cursor) > 0 && line[first + cursor-1] == ' ') {

cursor_left(&cursor, &first);

while ((first + cursor) > 0 && line[first + cursor] == ' ')

cursor_left(&cursor, &first);

}

while ((first + cursor) > 0 && line[first + cursor-1] != ' ')

cursor_left(&cursor, &first);

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);

continue;

case KEYPRESS(0, SCAN_RIGHT, 0):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'f'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('f')):

/* forward-char */

if (first + cursor == len)

continue;

cursor_right(&cursor, &first, x_max, len);

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);

continue;

case KEYPRESS(0, SCAN_LEFT, 0):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'b'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('b')):

/* backward-char */

cursor_left(&cursor, &first);

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);

continue;

case KEYPRESS(EFI_ALT_PRESSED, 0, 'd'):

/* kill-word */

clear = 0;

for (i = first + cursor; i < len && line[i] == ' '; i++)

clear++;

for (; i < len && line[i] != ' '; i++)

clear++;

for (i = first + cursor; i + clear < len; i++)

line[i] = line[i + clear];

len -= clear;

line[len] = '\0';

continue;

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'w'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('w')):

case KEYPRESS(EFI_ALT_PRESSED, 0, CHAR_BACKSPACE):

/* backward-kill-word */

clear = 0;

if ((first + cursor) > 0 && line[first + cursor-1] == ' ') {

cursor_left(&cursor, &first);

clear++;

while ((first + cursor) > 0 && line[first + cursor] == ' ') {

cursor_left(&cursor, &first);

clear++;

}

}

while ((first + cursor) > 0 && line[first + cursor-1] != ' ') {

cursor_left(&cursor, &first);

clear++;

}

uefi_call_wrapper(ST->ConOut->SetCursorPosition, 3, ST->ConOut, cursor, y_pos);

for (i = first + cursor; i + clear < len; i++)

line[i] = line[i + clear];

len -= clear;

line[len] = '\0';

continue;

case KEYPRESS(0, SCAN_DELETE, 0):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'd'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('d')):

if (len == 0)

continue;

if (first + cursor == len)

continue;

for (i = first + cursor; i < len; i++)

line[i] = line[i+1];

clear = 1;

len--;

continue;

case KEYPRESS(EFI_CONTROL_PRESSED, 0, 'k'):

case KEYPRESS(EFI_CONTROL_PRESSED, 0, CHAR_CTRL('k')):

/* kill-line */

line[first + cursor] = '\0';

clear = len - (first + cursor);

len = first + cursor;

continue;

case KEYPRESS(0, 0, CHAR_LINEFEED):

case KEYPRESS(0, 0, CHAR_CARRIAGE_RETURN):

if (StrCmp(line, line_in) != 0) {

*line_out = line;

line = NULL;

}

enter = TRUE;

exit = TRUE;

break;

case KEYPRESS(0, 0, CHAR_BACKSPACE):

if (len == 0)

continue;

if (first == 0 && cursor == 0)

continue;

for (i = first + cursor-1; i < len; i++)

line[i] = line[i+1];

clear = 1;

len--;

if (cursor > 0)

cursor--;

if (cursor > 0 || first == 0)

continue;

/* show full line if it fits */

if (len < x_max) {

cursor = first;

first = 0;

continue;

}

/* jump left to see what we delete */

if (first > 10) {

first -= 10;

cursor = 10;

} else {

cursor = first;

first = 0;

}

continue;

case KEYPRESS(0, 0, ' ') ... KEYPRESS(0, 0, '~'):

case KEYPRESS(0, 0, 0x80) ... KEYPRESS(0, 0, 0xffff):

if (len+1 == size)

continue;

for (i = len; i > first + cursor; i--)

line[i] = line[i-1];

line[first + cursor] = KEYCHAR(key);

len++;

line[len] = '\0';

if (cursor+1 < x_max)

cursor++;

else if (first + cursor < len)

first++;

continue;

}

}

uefi_call_wrapper(ST->ConOut->EnableCursor, 2, ST->ConOut, FALSE);

FreePool(print);

FreePool(line);

return enter;

}

static UINTN entry_lookup_key(Config *config, UINTN start, CHAR16 key) {

UINTN i;

if (key == 0)

return -1;

/* select entry by number key */

if (key >= '1' && key <= '9') {

i = key - '0';

if (i > config->entry_count)

i = config->entry_count;

return i-1;

}

/* find matching key in config entries */

for (i = start; i < config->entry_count; i++)

if (config->entries[i]->key == key)

return i;

for (i = 0; i < start; i++)

if (config->entries[i]->key == key)

return i;

return -1;

}

static VOID print_status(Config *config, CHAR16 *loaded_image_path) {

UINT64 key;

UINTN i;

CHAR16 *s;

CHAR8 *b;

UINTN x;

UINTN y;

UINTN size;

uefi_call_wrapper(ST->ConOut->SetAttribute, 2, ST->ConOut, EFI_LIGHTGRAY|EFI_BACKGROUND_BLACK);

uefi_call_wrapper(ST->ConOut->ClearScreen, 1, ST->ConOut);

Print(L"systemd-boot version: " 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_defaults(Config *config, EFI_FILE *root_dir) {

CHAR8 *content = NULL;

UINTN sec;

UINTN len;

EFI_STATUS err;

len = file_read(root_dir, L"\\loader\\loader.conf", 0, 0, &content);

if (len > 0)

config_defaults_load_from_file(config, content);

FreePool(content);

err = efivar_get_int(L"LoaderConfigTimeout", &sec);

if (!EFI_ERROR(err)) {

config->timeout_sec_efivar = sec;

config->timeout_sec = sec;

} else

config->timeout_sec_efivar = -1;

}

static VOID config_load_entries(Config *config, EFI_HANDLE *device, EFI_FILE *root_dir, CHAR16 *loaded_image_path) {

EFI_FILE_HANDLE entries_dir;

EFI_STATUS err;

err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &entries_dir, L"\\loader\\entries", EFI_FILE_MODE_READ, 0ULL);

if (!EFI_ERROR(err)) {

for (;;) {

CHAR16 buf[256];

UINTN bufsize;

EFI_FILE_INFO *f;

CHAR8 *content = NULL;

UINTN len;

bufsize = sizeof(buf);

err = uefi_call_wrapper(entries_dir->Read, 3, entries_dir, &bufsize, buf);

if (bufsize == 0 || EFI_ERROR(err))

break;

f = (EFI_FILE_INFO *) buf;

if (f->FileName[0] == '.')

continue;

if (f->Attribute & EFI_FILE_DIRECTORY)

continue;

len = StrLen(f->FileName);

if (len < 6)

continue;

if (StriCmp(f->FileName + len - 5, L".conf") != 0)

continue;

if (StrnCmp(f->FileName, L"auto-", 5) == 0)

continue;

len = file_read(entries_dir, f->FileName, 0, 0, &content);

if (len > 0)

config_entry_add_from_file(config, device, f->FileName, content, loaded_image_path);

FreePool(content);

}

uefi_call_wrapper(entries_dir->Close, 1, entries_dir);

}

}

static VOID config_sort_entries(Config *config) {

UINTN i;

for (i = 1; i < config->entry_count; i++) {

BOOLEAN more;

UINTN k;

more = FALSE;

for (k = 0; k < config->entry_count - i; k++) {

ConfigEntry *entry;

if (str_verscmp(config->entries[k]->file, config->entries[k+1]->file) <= 0)

continue;

entry = config->entries[k];

config->entries[k] = config->entries[k+1];

config->entries[k+1] = entry;

more = TRUE;

}

if (!more)

break;

}

}

static VOID config_default_entry_select(Config *config) {

CHAR16 *var;

EFI_STATUS err;

UINTN i;

/*

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;

}

/*

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;

/*

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;

}

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;

ConfigEntry *entry;

err = uefi_call_wrapper(root_dir->Open, 5, root_dir, &linux_dir, L"\\EFI\\Linux", EFI_FILE_MODE_READ, 0ULL);

if (!EFI_ERROR(err)) {

for (;;) {

CHAR16 buf[256];

UINTN bufsize;

EFI_FILE_INFO *f;

CHAR8 *sections[] = {

(UINT8 *)".osrel",

(UINT8 *)".cmdline",

NULL

};

UINTN offs[ELEMENTSOF(sections)-1] = {};

UINTN szs[ELEMENTSOF(sections)-1] = {};

UINTN addrs[ELEMENTSOF(sections)-1] = {};

CHAR8 *content = NULL;

UINTN len;

CHAR8 *line;

UINTN pos = 0;

CHAR8 *key, *value;

CHAR16 *os_name = NULL;

CHAR16 *os_id = NULL;

CHAR16 *os_version = NULL;

CHAR16 *os_build = NULL;

bufsize = sizeof(buf);

err = uefi_call_wrapper(linux_dir->Read, 3, linux_dir, &bufsize, buf);

if (bufsize == 0 || EFI_ERROR(err))

break;

f = (EFI_FILE_INFO *) buf;

if (f->FileName[0] == '.')

continue;

if (f->Attribute & EFI_FILE_DIRECTORY)

continue;

len = StrLen(f->FileName);

if (len < 5)

continue;

if (StriCmp(f->FileName + len - 4, L".efi") != 0)

continue;

/* look for .osrel and .cmdline sections in the .efi binary */

err = 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) {

FreePool(os_name);

os_name = stra_to_str(value);

continue;

}

if (strcmpa((CHAR8 *)"ID", key) == 0) {

FreePool(os_id);

os_id = stra_to_str(value);

continue;

}

if (strcmpa((CHAR8 *)"VERSION_ID", key) == 0) {

FreePool(os_version);

os_version = stra_to_str(value);

continue;

}

if (strcmpa((CHAR8 *)"BUILD_ID", key) == 0) {

FreePool(os_build);

os_build = stra_to_str(value);

continue;

}

}

if (os_name && os_id && (os_version || os_build)) {

CHAR16 *conf;

CHAR16 *path;

CHAR16 *cmdline;

conf = PoolPrint(L"%s-%s", os_id, os_version ? : os_build);

path = PoolPrint(L"\\EFI\\Linux\\%s", f->FileName);

entry = config_entry_add_loader(config, loaded_image->DeviceHandle, LOADER_LINUX, conf, 'l', os_name, path);

FreePool(content);

/* read the embedded cmdline file */

len = file_read(linux_dir, f->FileName, offs[1], szs[1] - 1 , &content);

if (len > 0) {

cmdline = stra_to_str(content);

entry->options = cmdline;

cmdline = NULL;

}

FreePool(cmdline);

FreePool(conf);

FreePool(path);

}

FreePool(os_name);

FreePool(os_id);

FreePool(os_version);

FreePool(os_build);

FreePool(content);

}

uefi_call_wrapper(linux_dir->Close, 1, linux_dir);

}

}

static EFI_STATUS image_start(EFI_HANDLE parent_image, const Config *config, const ConfigEntry *entry) {

EFI_HANDLE image;

EFI_DEVICE_PATH *path;

CHAR16 *options;

EFI_STATUS err;

path = FileDevicePath(entry->device, entry->loader);

if (!path) {

Print(L"Error getting device path.");

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

return EFI_INVALID_PARAMETER;

}

err = uefi_call_wrapper(BS->LoadImage, 6, FALSE, parent_image, path, NULL, 0, &image);

if (EFI_ERROR(err)) {

Print(L"Error loading %s: %r", entry->loader, err);

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

goto out;

}

if (config->options_edit)

options = config->options_edit;

else if (entry->options)

options = entry->options;

else

options = NULL;

if (options) {

EFI_LOADED_IMAGE *loaded_image;

err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image,

parent_image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);

if (EFI_ERROR(err)) {

Print(L"Error getting LoadedImageProtocol handle: %r", err);

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

goto out_unload;

}

loaded_image->LoadOptions = options;

loaded_image->LoadOptionsSize = (StrLen(loaded_image->LoadOptions)+1) * sizeof(CHAR16);

}

efivar_set_time_usec(L"LoaderTimeExecUSec", 0);

err = uefi_call_wrapper(BS->StartImage, 3, image, NULL, NULL);

out_unload:

uefi_call_wrapper(BS->UnloadImage, 1, image);

out:

FreePool(path);

return err;

}

static EFI_STATUS reboot_into_firmware(VOID) {

CHAR8 *b;

UINTN size;

UINT64 osind;

EFI_STATUS err;

osind = EFI_OS_INDICATIONS_BOOT_TO_FW_UI;

err = efivar_get_raw(&global_guid, L"OsIndications", &b, &size);

if (!EFI_ERROR(err))

osind |= (UINT64)*b;

FreePool(b);

err = efivar_set_raw(&global_guid, L"OsIndications", (CHAR8 *)&osind, sizeof(UINT64), TRUE);

if (EFI_ERROR(err))

return err;

err = uefi_call_wrapper(RT->ResetSystem, 4, EfiResetCold, EFI_SUCCESS, 0, NULL);

Print(L"Error calling ResetSystem: %r", err);

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

return err;

}

static VOID config_free(Config *config) {

UINTN i;

for (i = 0; i < config->entry_count; i++)

config_entry_free(config->entries[i]);

FreePool(config->entries);

FreePool(config->entry_default_pattern);

FreePool(config->options_edit);

FreePool(config->entry_oneshot);

}

EFI_STATUS efi_main(EFI_HANDLE image, EFI_SYSTEM_TABLE *sys_table) {

CHAR16 *s;

CHAR8 *b;

UINTN size;

EFI_LOADED_IMAGE *loaded_image;

EFI_FILE *root_dir;

CHAR16 *loaded_image_path;

EFI_STATUS err;

Config config;

UINT64 init_usec;

BOOLEAN menu = FALSE;

CHAR16 uuid[37];

InitializeLib(image, sys_table);

init_usec = time_usec();

efivar_set_time_usec(L"LoaderTimeInitUSec", init_usec);

efivar_set(L"LoaderInfo", L"systemd-boot " VERSION, FALSE);

s = PoolPrint(L"%s %d.%02d", ST->FirmwareVendor, ST->FirmwareRevision >> 16, ST->FirmwareRevision & 0xffff);

efivar_set(L"LoaderFirmwareInfo", s, FALSE);

FreePool(s);

s = PoolPrint(L"UEFI %d.%02d", ST->Hdr.Revision >> 16, ST->Hdr.Revision & 0xffff);

efivar_set(L"LoaderFirmwareType", s, FALSE);

FreePool(s);

err = uefi_call_wrapper(BS->OpenProtocol, 6, image, &LoadedImageProtocol, (VOID **)&loaded_image,

image, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);

if (EFI_ERROR(err)) {

Print(L"Error getting a LoadedImageProtocol handle: %r ", err);

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

return err;

}

/* export the device path this image is started from */

if (disk_get_part_uuid(loaded_image->DeviceHandle, uuid) == EFI_SUCCESS)

efivar_set(L"LoaderDevicePartUUID", uuid, FALSE);

root_dir = LibOpenRoot(loaded_image->DeviceHandle);

if (!root_dir) {

Print(L"Unable to open root directory: %r ", err);

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

return EFI_LOAD_ERROR;

}

/* the filesystem path to this image, to prevent adding ourselves to the menu */

loaded_image_path = DevicePathToStr(loaded_image->FilePath);

efivar_set(L"LoaderImageIdentifier", loaded_image_path, FALSE);

ZeroMem(&config, sizeof(Config));

config_load_defaults(&config, root_dir);

/* scan /EFI/Linux/ directory */

config_entry_add_linux(&config, loaded_image, root_dir);

/* scan /loader/entries/\*.conf files */

config_load_entries(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path);

/* sort entries after version number */

config_sort_entries(&config);

/* if we find some well-known loaders, add them to the end of the list */

config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path,

L"auto-windows", 'w', L"Windows Boot Manager", L"\\EFI\\Microsoft\\Boot\\bootmgfw.efi");

config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path,

L"auto-efi-shell", 's', L"EFI Shell", L"\\shell" EFI_MACHINE_TYPE_NAME ".efi");

config_entry_add_loader_auto(&config, loaded_image->DeviceHandle, root_dir, loaded_image_path,

L"auto-efi-default", '\0', L"EFI Default Loader", L"\\EFI\\Boot\\boot" EFI_MACHINE_TYPE_NAME ".efi");

config_entry_add_osx(&config);

if (efivar_get_raw(&global_guid, L"OsIndicationsSupported", &b, &size) == EFI_SUCCESS) {

UINT64 osind = (UINT64)*b;

if (osind & EFI_OS_INDICATIONS_BOOT_TO_FW_UI)

config_entry_add_call(&config, L"Reboot Into Firmware Interface", reboot_into_firmware);

FreePool(b);

}

if (config.entry_count == 0) {

Print(L"No loader found. Configuration files in \\loader\\entries\\*.conf are needed.");

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

goto out;

}

config_title_generate(&config);

/* select entry by configured pattern or EFI LoaderDefaultEntry= variable*/

config_default_entry_select(&config);

/* if no configured entry to select from was found, enable the menu */

if (config.idx_default == -1) {

config.idx_default = 0;

if (config.timeout_sec == 0)

config.timeout_sec = 10;

}

/* select entry or show menu when key is pressed or timeout is set */

if (config.timeout_sec == 0) {

UINT64 key;

err = console_key_read(&key, FALSE);

if (!EFI_ERROR(err)) {

INT16 idx;

/* find matching key in config entries */

idx = entry_lookup_key(&config, config.idx_default, KEYCHAR(key));

if (idx >= 0)

config.idx_default = idx;

else

menu = TRUE;

}

} else

menu = TRUE;

for (;;) {

ConfigEntry *entry;

entry = config.entries[config.idx_default];

if (menu) {

efivar_set_time_usec(L"LoaderTimeMenuUSec", 0);

uefi_call_wrapper(BS->SetWatchdogTimer, 4, 0, 0x10000, 0, NULL);

if (!menu_run(&config, &entry, loaded_image_path))

break;

/* run special entry like "reboot" */

if (entry->call) {

entry->call();

continue;

}

}

/* export the selected boot entry to the system */

efivar_set(L"LoaderEntrySelected", entry->file, FALSE);

uefi_call_wrapper(BS->SetWatchdogTimer, 4, 5 * 60, 0x10000, 0, NULL);

err = image_start(image, &config, entry);

if (EFI_ERROR(err)) {

graphics_mode(FALSE);

Print(L"\nFailed to execute %s (%s): %r\n", entry->title, entry->loader, err);

uefi_call_wrapper(BS->Stall, 1, 3 * 1000 * 1000);

goto out;

}

menu = TRUE;

config.timeout_sec = 0;

}

err = EFI_SUCCESS;

out:

FreePool(loaded_image_path);

config_free(&config);

uefi_call_wrapper(root_dir->Close, 1, root_dir);

uefi_call_wrapper(BS->CloseProtocol, 4, image, &LoadedImageProtocol, image, NULL);

return err;

}