static int
iterate_device (const char *name, void *data)
{
struct search_ctx *ctx = data;
char *cur_uuid;
if (get_uuid (name, &cur_uuid, 1))
{
if (grub_errno == GRUB_ERR_UNKNOWN_FS)
grub_errno = 0;
grub_print_error ();
return 0;
}
grub_dprintf ("nativedisk", "checking %s: %s\n", name,
cur_uuid);
if (ctx->prefix_uuid && grub_strcasecmp (cur_uuid, ctx->prefix_uuid) == 0)
{
char *prefix;
prefix = grub_xasprintf ("(%s)/%s", name, ctx->prefix_path);
grub_env_set ("prefix", prefix);
grub_free (prefix);
ctx->prefix_found = 1;
}
if (ctx->root_uuid && grub_strcasecmp (cur_uuid, ctx->root_uuid) == 0)
{
grub_env_set ("root", name);
ctx->root_found = 1;
}
return ctx->prefix_found && ctx->root_found;
}
void
grub_machine_set_prefix (void)
{
#ifndef __i386__
char bootpath[64]; /* XXX check length */
char *filename;
char *prefix;
#endif
if (grub_prefix[0])
{
grub_env_set ("prefix", grub_prefix);
/* Prefix is hardcoded in the core image. */
return;
}
#ifdef __i386__
grub_env_set ("prefix", "(sd,1)/");
#else
if (grub_ieee1275_get_property (grub_ieee1275_chosen, "bootpath", &bootpath,
sizeof (bootpath), 0))
{
/* Should never happen. */
grub_printf ("/chosen/bootpath property missing!\n");
grub_env_set ("prefix", "");
return;
}
/* Transform an OF device path to a GRUB path. */
prefix = grub_ieee1275_encode_devname (bootpath);
filename = grub_ieee1275_get_filename (bootpath);
if (filename)
{
char *newprefix;
char *lastslash = grub_strrchr (filename, '\\');
/* Truncate at last directory. */
if (lastslash)
{
*lastslash = '\0';
grub_translate_ieee1275_path (filename);
newprefix = grub_xasprintf ("%s%s", prefix, filename);
if (newprefix)
{
grub_free (prefix);
prefix = newprefix;
}
}
}
grub_env_set ("prefix", prefix);
grub_free (filename);
grub_free (prefix);
#endif
}
static grub_err_t
grub_cmd_next (grub_extcmd_context_t ctxt, int argc, char **args)
{
struct grub_arg_list *state = ctxt->state;
char *p, *root = NULL, *part_name = NULL, *part_guid = NULL;
/* TODO: Add a uuid parser and a command line flag for providing type. */
grub_gpt_part_type_t part_type = GRUB_GPT_PARTITION_TYPE_USR_X86_64;
if (!state[NEXT_SET_DEVICE].set || !state[NEXT_SET_UUID].set)
{
grub_error (GRUB_ERR_INVALID_COMMAND, N_("-d and -u are required"));
goto done;
}
if (argc == 0)
root = grub_strdup (grub_env_get ("root"));
else if (argc == 1)
root = grub_strdup (args[0]);
else
{
grub_error (GRUB_ERR_BAD_ARGUMENT, N_("unexpected arguments"));
goto done;
}
if (!root)
goto done;
/* To make using $root practical strip off the partition name. */
p = grub_strchr (root, ',');
if (p)
*p = '\0';
if (grub_find_next (root, &part_type, &part_name, &part_guid))
goto done;
if (grub_env_set (state[NEXT_SET_DEVICE].arg, part_name))
goto done;
if (grub_env_set (state[NEXT_SET_UUID].arg, part_guid))
goto done;
grub_errno = GRUB_ERR_NONE;
done:
grub_free (root);
grub_free (part_name);
grub_free (part_guid);
return grub_errno;
}
grub_err_t
grub_multiboot_set_console (int console_type, int accepted_consoles,
int width, int height, int depth,
int console_req)
{
console_required = console_req;
if (!(accepted_consoles
& (GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER
| (GRUB_MACHINE_HAS_VGA_TEXT ? GRUB_MULTIBOOT_CONSOLE_EGA_TEXT : 0))))
{
if (console_required)
return grub_error (GRUB_ERR_BAD_OS,
"OS requires a console but none is available");
grub_puts_ (N_("WARNING: no console will be available to OS"));
accepts_video = 0;
accepts_ega_text = 0;
return GRUB_ERR_NONE;
}
if (console_type == GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER)
{
char *buf;
if (depth && width && height)
buf = grub_xasprintf ("%dx%dx%d,%dx%d,auto", width,
height, depth, width, height);
else if (width && height)
buf = grub_xasprintf ("%dx%d,auto", width, height);
else
buf = grub_strdup ("auto");
if (!buf)
return grub_errno;
grub_env_set ("gfxpayload", buf);
grub_free (buf);
}
else
{
#if GRUB_MACHINE_HAS_VGA_TEXT
grub_env_set ("gfxpayload", "text");
#else
/* Always use video if no VGA text is available. */
grub_env_set ("gfxpayload", "auto");
#endif
}
accepts_video = !!(accepted_consoles & GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER);
accepts_ega_text = !!(accepted_consoles & GRUB_MULTIBOOT_CONSOLE_EGA_TEXT);
return GRUB_ERR_NONE;
}
/* Helper for grub_cmd_load_env. */
static int
set_var (const char *name, const char *value, void *whitelist)
{
if (! whitelist)
{
grub_env_set (name, value);
return 0;
}
if (test_whitelist_membership (name,
(const grub_env_whitelist_t *) whitelist))
grub_env_set (name, value);
return 0;
}
void
grub_machine_set_prefix (void)
{
grub_env_set ("prefix", prefix);
free (prefix);
prefix = 0;
}
/* Set slot status values */
static gboolean grub_set_state(RaucSlot *slot, gboolean good) {
GPtrArray *pairs = g_ptr_array_new_full(10, g_free);
gboolean res = FALSE;
g_assert_nonnull(slot);
if (good) {
g_ptr_array_add(pairs, g_strdup_printf("%s_OK=1", slot->bootname));
g_ptr_array_add(pairs, g_strdup_printf("%s_TRY=0", slot->bootname));
} else {
g_ptr_array_add(pairs, g_strdup_printf("%s_OK=0", slot->bootname));
g_ptr_array_add(pairs, g_strdup_printf("%s_TRY=0", slot->bootname));
}
res = grub_env_set(pairs);
if (!res) {
g_warning("failed marking as %s", good ? "good" : "bad");
goto out;
}
res = TRUE;
out:
g_ptr_array_unref(pairs);
return res;
}
static grub_err_t
grub_cmd_read (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
grub_uitree_t node;
if (argc < 2)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "not enough parameter");
if (! grub_widget_current_node)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no current node");
node = grub_widget_current_node;
while (node)
{
char *parm;
parm = grub_uitree_get_prop (node, "parameters");
if (parm)
{
char *result;
result = grub_dialog_get_parm (node, parm, args[0]);
if (result)
grub_env_set (args[1], result);
break;
}
node = node->parent;
}
return 0;
}
/* Get the first entry number from the value of the environment variable NAME,
which is a space-separated list of non-negative integers. The entry number
which is returned is stripped from the value of NAME. If no entry number
can be found, -1 is returned. */
static int
get_and_remove_first_entry_number (const char *name)
{
const char *val;
char *tail;
int entry;
val = grub_env_get (name);
if (! val)
return -1;
grub_error_push ();
entry = (int) grub_strtoul (val, &tail, 0);
if (grub_errno == GRUB_ERR_NONE)
{
/* Skip whitespace to find the next digit. */
while (*tail && grub_isspace (*tail))
tail++;
grub_env_set (name, tail);
}
else
{
grub_env_unset (name);
grub_errno = GRUB_ERR_NONE;
entry = -1;
}
grub_error_pop ();
return entry;
}
static grub_err_t
grub_script_env_set (const char *name, const char *val)
{
if (grub_env_special (name))
return grub_error (GRUB_ERR_BAD_ARGUMENT, "bad variable name");
return grub_env_set (name, val);
}
static PyObject *bits__putenv(PyObject *self, PyObject *args)
{
const char *key, *value;
if (!PyArg_ParseTuple(args, "ss:putenv", &key, &value))
return NULL;
if (grub_env_set(key, value) != GRUB_ERR_NONE || grub_env_export(key) != GRUB_ERR_NONE)
return PyErr_SetFromErrno(PyExc_OSError);
return Py_BuildValue("");
}
grub_err_t
grub_rescue_parse_line (char *line,
grub_reader_getline_t getline, void *getline_data)
{
char *name;
int n;
grub_command_t cmd;
char **args;
if (grub_parser_split_cmdline (line, getline, getline_data, &n, &args)
|| n < 0)
return grub_errno;
if (n == 0)
return GRUB_ERR_NONE;
/* In case of an assignment set the environment accordingly
instead of calling a function. */
if (n == 1)
{
char *val = grub_strchr (args[0], '=');
if (val)
{
val[0] = 0;
grub_env_set (args[0], val + 1);
val[0] = '=';
goto quit;
}
}
/* Get the command name. */
name = args[0];
/* If nothing is specified, restart. */
if (*name == '\0')
goto quit;
cmd = grub_command_find (name);
if (cmd)
{
(cmd->func) (cmd, n - 1, &args[1]);
}
else
{
grub_printf_ (N_("Unknown command `%s'.\n"), name);
if (grub_command_find ("help"))
grub_printf ("Try `help' for usage\n");
}
quit:
/* Arguments are returned in single memory chunk separated by zeroes */
grub_free (args[0]);
grub_free (args);
return grub_errno;
}
void
grub_efi_set_prefix (void)
{
grub_efi_loaded_image_t *image = NULL;
char *device = NULL;
char *path = NULL;
{
char *pptr = NULL;
if (grub_prefix[0] == '(')
{
pptr = grub_strrchr (grub_prefix, ')');
if (pptr)
{
device = grub_strndup (grub_prefix + 1, pptr - grub_prefix - 1);
pptr++;
}
}
if (!pptr)
pptr = grub_prefix;
if (pptr[0])
path = grub_strdup (pptr);
}
if (!device || !path)
image = grub_efi_get_loaded_image (grub_efi_image_handle);
if (image && !device)
device = grub_efidisk_get_device_name (image->device_handle);
if (image && !path)
{
char *p;
path = grub_efi_get_filename (image->file_path);
/* Get the directory. */
p = grub_strrchr (path, '/');
if (p)
*p = '\0';
}
if (device && path)
{
char *prefix;
prefix = grub_xasprintf ("(%s)%s", device, path);
if (prefix)
{
grub_env_set ("prefix", prefix);
grub_free (prefix);
}
}
grub_free (device);
grub_free (path);
}
void
grub_machine_set_prefix (void)
{
if (grub_prefix[0] != '(')
{
char bootpath[IEEE1275_MAX_PATH_LEN];
char *prefix, *path, *colon;
grub_ssize_t actual;
if (grub_ieee1275_get_property (grub_ieee1275_chosen, "bootpath",
&bootpath, sizeof (bootpath), &actual))
{
/* Should never happen. */
grub_printf ("/chosen/bootpath property missing!\n");
grub_env_set ("prefix", "");
return;
}
/* Transform an OF device path to a GRUB path. */
colon = grub_strchr (bootpath, ':');
if (colon)
{
char *part = colon + 1;
/* Consistently provide numbered partitions to GRUB.
OpenBOOT traditionally uses alphabetical partition
specifiers. */
if (part[0] >= 'a' && part[0] <= 'z')
part[0] = '1' + (part[0] - 'a');
}
prefix = grub_ieee1275_encode_devname (bootpath);
path = grub_xasprintf("%s%s", prefix, grub_prefix);
grub_strcpy (grub_prefix, path);
grub_free (path);
grub_free (prefix);
}
grub_env_set ("prefix", grub_prefix);
}
static grub_err_t
grub_cmd_read (grub_command_t cmd __attribute__ ((unused)), int argc, char **args)
{
char *line = grub_getline ();
if (! line)
return grub_errno;
if (argc > 0)
grub_env_set (args[0], line);
grub_free (line);
return 0;
}
/* Set current timeout in the variable "timeout". */
void
grub_menu_set_timeout (int timeout)
{
/* Ignore TIMEOUT if it is zero, because it will be unset really soon. */
if (timeout > 0)
{
char buf[16];
grub_snprintf (buf, sizeof (buf), "%d", timeout);
grub_env_set ("timeout", buf);
}
}
void
grub_machine_init (void)
{
char args[256];
grub_ssize_t actual;
grub_ieee1275_init ();
grub_console_init_early ();
#ifdef __i386__
grub_get_extended_memory ();
#endif
grub_claim_heap ();
grub_console_init_lately ();
grub_ofdisk_init ();
/* Process commandline. */
if (grub_ieee1275_get_property (grub_ieee1275_chosen, "bootargs", &args,
sizeof args, &actual) == 0
&& actual > 1)
{
int i = 0;
while (i < actual)
{
char *command = &args[i];
char *end;
char *val;
end = grub_strchr (command, ';');
if (end == 0)
i = actual; /* No more commands after this one. */
else
{
*end = '\0';
i += end - command + 1;
while (grub_isspace(args[i]))
i++;
}
/* Process command. */
val = grub_strchr (command, '=');
if (val)
{
*val = '\0';
grub_env_set (command, val + 1);
}
}
}
grub_install_get_time_ms (ieee1275_get_time_ms);
}
static grub_err_t
grub_rescue_parse_line (char *line, grub_reader_getline_t getline,
void *closure)
{
char *name;
int n;
grub_command_t cmd;
char **args;
if (grub_parser_split_cmdline (line, getline, closure, &n, &args) || n < 0)
return grub_errno;
if (n == 0)
return GRUB_ERR_NONE;
/* In case of an assignment set the environment accordingly
instead of calling a function. */
if (n == 1 && grub_strchr (line, '='))
{
char *val = grub_strchr (args[0], '=');
val[0] = 0;
grub_env_set (args[0], val + 1);
val[0] = '=';
goto quit;
}
/* Get the command name. */
name = args[0];
/* If nothing is specified, restart. */
if (*name == '\0')
goto quit;
cmd = grub_command_find (name);
if (cmd)
{
(cmd->func) (cmd, n - 1, &args[1]);
}
else
{
grub_printf ("Unknown command `%s'\n", name);
if (grub_command_find ("help"))
grub_printf ("Try `help' for usage\n");
}
quit:
grub_free (args[0]);
grub_free (args);
return grub_errno;
}
static grub_err_t
grub_env_new_context (int export_all)
{
struct grub_env_context *context;
int i;
struct menu_pointer *menu;
context = grub_zalloc (sizeof (*context));
if (! context)
return grub_errno;
menu = grub_zalloc (sizeof (*menu));
if (! menu)
{
grub_free (context);
return grub_errno;
}
context->prev = grub_current_context;
grub_current_context = context;
menu->prev = current_menu;
current_menu = menu;
/* Copy exported variables. */
for (i = 0; i < HASHSZ; i++)
{
struct grub_env_var *var;
for (var = context->prev->vars[i]; var; var = var->next)
if (var->global || export_all)
{
if (grub_env_set (var->name, var->value) != GRUB_ERR_NONE)
{
grub_env_context_close ();
return grub_errno;
}
grub_env_export (var->name);
grub_register_variable_hook (var->name, var->read_hook, var->write_hook);
}
}
return GRUB_ERR_NONE;
}
/**
* @attention 本注释得到了"核高基"科技重大专项2012年课题“开源操作系统内核分析和安全性评估
*（课题编号：2012ZX01039-004）”的资助。
*
* @copyright 注释添加单位：清华大学——03任务（Linux内核相关通用基础软件包分析）承担单位
*
* @author 注释添加人员：谢文学
*
* @date 注释添加日期：2013年6月8日
*
* @brief 导出一个环境变量。
*
* @note 注释详细内容:
*
* 本函数实现导出一个环境变量的功能。首先使用grub_env_find()找到该环境变量；如果没找到，则
* 使用grub_env_set()将其设置为“”，并重新使用grub_env_find()找到该环境变量；最后设置改环境
* 变量的global标志位1。
**/
grub_err_t
grub_env_export (const char *name)
{
struct grub_env_var *var;
var = grub_env_find (name);
if (! var)
{
grub_err_t err;
err = grub_env_set (name, "");
if (err)
return err;
var = grub_env_find (name);
}
var->global = 1;
return GRUB_ERR_NONE;
}
grub_err_t
grub_register_variable_hook (const char *name,
grub_env_read_hook_t read_hook,
grub_env_write_hook_t write_hook)
{
struct grub_env_var *var = grub_env_find (name);
if (! var)
{
if (grub_env_set (name, "") != GRUB_ERR_NONE)
return grub_errno;
var = grub_env_find (name);
/* XXX Insert an assertion? */
}
var->read_hook = read_hook;
var->write_hook = write_hook;
return GRUB_ERR_NONE;
}
void
grub_env_unset (const char *name)
{
struct grub_env_var *var;
var = grub_env_find (name);
if (! var)
return;
if (var->read_hook || var->write_hook)
{
grub_env_set (name, "");
return;
}
grub_env_remove (var);
grub_free (var->name);
grub_free (var->value);
grub_free (var);
}
static void
grub_parse_cmdline (void)
{
grub_ssize_t actual;
char args[256];
if (grub_ieee1275_get_property (grub_ieee1275_chosen, "bootargs", &args,
sizeof args, &actual) == 0
&& actual > 1)
{
int i = 0;
while (i < actual)
{
char *command = &args[i];
char *end;
char *val;
end = grub_strchr (command, ';');
if (end == 0)
i = actual; /* No more commands after this one. */
else
{
*end = '\0';
i += end - command + 1;
while (grub_isspace(args[i]))
i++;
}
/* Process command. */
val = grub_strchr (command, '=');
if (val)
{
*val = '\0';
grub_env_set (command, val + 1);
}
}
}
}
/* Set slot as primary boot slot */
static gboolean grub_set_primary(RaucSlot *slot) {
GPtrArray *pairs = g_ptr_array_new_full(10, g_free);
GString *order = g_string_sized_new(10);
gboolean res = FALSE;
GList *slots;
g_assert_nonnull(slot);
g_string_append(order, slot->bootname);
/* Iterate over class members */
slots = g_hash_table_get_values(r_context()->config->slots);
for (GList *l = slots; l != NULL; l = l->next) {
RaucSlot *s = l->data;
if (s == slot)
continue;
if (s->sclass != slot->sclass)
continue;
g_string_append_c(order, ' ');
g_string_append(order, s->bootname);
}
g_ptr_array_add(pairs, g_strdup_printf("%s_OK=%i", slot->bootname, 1));
g_ptr_array_add(pairs, g_strdup_printf("%s_TRY=%i", slot->bootname, 0));
g_ptr_array_add(pairs, g_strdup_printf("ORDER=%s", order->str));
res = grub_env_set(pairs);
if (!res) {
g_warning("failed marking as primary");
goto out;
}
res = TRUE;
out:
g_string_free(order, TRUE);
g_ptr_array_unref(pairs);
return res;
}
/* Run a menu entry. */
void
grub_menu_execute_entry(grub_menu_entry_t entry)
{
grub_err_t err = GRUB_ERR_NONE;
if (entry->restricted)
err = grub_normal_check_authentication (entry->users);
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
return;
}
grub_env_set ("chosen", entry->title);
grub_parser_execute ((char *) entry->sourcecode);
if (grub_errno == GRUB_ERR_NONE && grub_loader_is_loaded ())
/* Implicit execution of boot, only if something is loaded. */
grub_command_execute ("boot", 0, 0);
}
void
grub_efi_set_prefix (void)
{
grub_efi_loaded_image_t *image;
image = grub_efi_get_loaded_image (grub_efi_image_handle);
if (image)
{
char *device;
char *file;
char *prefix;
device = grub_efidisk_get_device_name (image->device_handle);
file = grub_efi_get_filename (image->file_path);
if (file)
{
char *p;
/* Get the directory. */
p = grub_strrchr (file, '/');
if (p)
*p = '\0';
}
prefix = grub_xasprintf ("(%s)%s", (device) ? device : "net0",
(file) ? file : "");
if (prefix)
{
grub_env_set ("prefix", prefix);
grub_free (prefix);
}
grub_free (device);
grub_free (file);
}
}
static grub_err_t
grub_cmd_read (grub_extcmd_t cmd, int argc, char **argv)
{
grub_target_addr_t addr;
grub_uint32_t value = 0;
char buf[sizeof ("XXXXXXXX")];
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "Invalid number of arguments");
addr = grub_strtoul (argv[0], 0, 0);
switch (cmd->cmd->name[sizeof ("in") - 1])
{
case 'l':
value = grub_inl (addr);
break;
case 'w':
value = grub_inw (addr);
break;
case 'b':
value = grub_inb (addr);
break;
}
if (cmd->state[0].set)
{
grub_snprintf (buf, sizeof (buf), "%x", value);
grub_env_set (cmd->state[0].arg, buf);
}
else
grub_printf ("0x%x\n", value);
return 0;
}
static grub_err_t
grub_cmd_read (grub_extcmd_context_t ctxt, int argc, char **argv)
{
grub_addr_t addr;
grub_uint32_t value = 0;
char buf[sizeof ("XXXXXXXX")];
if (argc != 1)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
addr = grub_strtoul (argv[0], 0, 0);
switch (ctxt->extcmd->cmd->name[sizeof ("read_") - 1])
{
case 'd':
value = *((volatile grub_uint32_t *) addr);
break;
case 'w':
value = *((volatile grub_uint16_t *) addr);
break;
case 'b':
value = *((volatile grub_uint8_t *) addr);
break;
}
if (ctxt->state[0].set)
{
grub_snprintf (buf, sizeof (buf), "%x", value);
grub_env_set (ctxt->state[0].arg, buf);
}
else
grub_printf ("0x%x\n", value);
return 0;
}
void
grub_machine_set_prefix (void)
{
/* Initialize the prefix. */
grub_env_set ("prefix", grub_prefix);
}
/* Run a menu entry. */
static void
grub_menu_execute_entry(grub_menu_entry_t entry, int auto_boot)
{
grub_err_t err = GRUB_ERR_NONE;
int errs_before;
grub_menu_t menu = NULL;
char *optr, *buf, *oldchosen = NULL, *olddefault = NULL;
const char *ptr, *chosen, *def;
grub_size_t sz = 0;
if (entry->restricted)
err = grub_auth_check_authentication (entry->users);
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
return;
}
errs_before = grub_err_printed_errors;
chosen = grub_env_get ("chosen");
def = grub_env_get ("default");
if (entry->submenu)
{
grub_env_context_open ();
menu = grub_zalloc (sizeof (*menu));
if (! menu)
return;
grub_env_set_menu (menu);
if (auto_boot)
grub_env_set ("timeout", "0");
}
for (ptr = entry->id; *ptr; ptr++)
sz += (*ptr == '>') ? 2 : 1;
if (chosen)
{
oldchosen = grub_strdup (chosen);
if (!oldchosen)
grub_print_error ();
}
if (def)
{
olddefault = grub_strdup (def);
if (!olddefault)
grub_print_error ();
}
sz++;
if (chosen)
sz += grub_strlen (chosen);
sz++;
buf = grub_malloc (sz);
if (!buf)
grub_print_error ();
else
{
optr = buf;
if (chosen)
{
optr = grub_stpcpy (optr, chosen);
*optr++ = '>';
}
for (ptr = entry->id; *ptr; ptr++)
{
if (*ptr == '>')
*optr++ = '>';
*optr++ = *ptr;
}
*optr = 0;
grub_env_set ("chosen", buf);
grub_env_export ("chosen");
grub_free (buf);
}
for (ptr = def; ptr && *ptr; ptr++)
{
if (ptr[0] == '>' && ptr[1] == '>')
{
ptr++;
continue;
}
if (ptr[0] == '>')
break;
}
if (ptr && ptr[0] && ptr[1])
grub_env_set ("default", ptr + 1);
else
grub_env_unset ("default");
grub_script_execute_sourcecode (entry->sourcecode, entry->argc, entry->args);
if (errs_before != grub_err_printed_errors)
grub_wait_after_message ();
if (grub_errno == GRUB_ERR_NONE && grub_loader_is_loaded ())
/* Implicit execution of boot, only if something is loaded. */
grub_command_execute ("boot", 0, 0);
if (entry->submenu)
{
if (menu && menu->size)
{
grub_show_menu (menu, 1, auto_boot);
grub_normal_free_menu (menu);
}
grub_env_context_close ();
}
if (oldchosen)
grub_env_set ("chosen", oldchosen);
else
grub_env_unset ("chosen");
if (olddefault)
grub_env_set ("default", olddefault);
else
grub_env_unset ("default");
grub_env_unset ("timeout");
}
