Add Temporary Control Settings menu.

Refer https://www.ventoy.net/en/doc_ctrl_settings.html for details.

GRUB2/MOD_SRC/grub-2.04/grub-core/normal/menu.c

@@ -1133,6 +1133,7 @@ show_menu (grub_menu_t menu, int nested, int autobooted)
     
   while (1)
     {
+      int ndown;
       int boot_entry;
       grub_menu_entry_t e;
       int auto_boot;
@@ -1175,6 +1176,16 @@ show_menu (grub_menu_t menu, int nested, int autobooted)
 
       if (2 == e->argc && e->args && e->args[1] && grub_strncmp(e->args[1], "VTOY_RUN_RET", 12) == 0)
         break; 
+      else if (2 == e->argc && e->args && e->args[1] && grub_strncmp(e->args[1], "VTOY_RUN_SET", 12) == 0) {        
+        ndown = (int)grub_strtol(e->args[1] + 12, NULL, 10);
+        while (ndown > 0)
+        {
+            ventoy_menu_push_key(GRUB_TERM_KEY_DOWN);
+            ndown--;
+        }
+        ventoy_menu_push_key('\n');
+        break;         
+      }
     }
 
   return GRUB_ERR_NONE;

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_cmd.c

@@ -6227,6 +6227,66 @@ static char * ventoy_gfxmode_write_hook(struct grub_env_var *var, const char *va
     return grub_strdup(val);
 }
 
+static ctrl_var_cfg g_ctrl_vars[] = 
+{
+    { "VTOY_WIN11_BYPASS_CHECK",  0 },
+    { "VTOY_LINUX_REMOUNT",       0 },
+    { "VTOY_SECONDARY_BOOT_MENU", 1 },
+    { NULL, 0 }
+};
+
+static const char * ventoy_ctrl_var_read_hook(struct grub_env_var *var, const char *val)
+{
+    int i;
+
+    for (i = 0; g_ctrl_vars[i].name; i++)
+    {
+        if (grub_strcmp(g_ctrl_vars[i].name, var->name) == 0)
+        {
+            return g_ctrl_vars[i].value ? "1" : "0";
+        }
+    }
+
+    return val;
+}
+
+static char * ventoy_ctrl_var_write_hook(struct grub_env_var *var, const char *val)
+{
+    int i;
+
+    for (i = 0; g_ctrl_vars[i].name; i++)
+    {
+        if (grub_strcmp(g_ctrl_vars[i].name, var->name) == 0)
+        {
+            if (val && val[0] == '1' && val[1] == 0)
+            {
+                g_ctrl_vars[i].value = 1;
+                return grub_strdup("1");
+            }
+            else
+            {
+                g_ctrl_vars[i].value = 0;
+                return grub_strdup("0");
+            }
+        }
+    }
+
+    return grub_strdup(val);
+}
+
+static int ventoy_ctrl_var_init(void)
+{
+    int i;
+
+    for (i = 0; g_ctrl_vars[i].name; i++)
+    {
+        ventoy_env_export(g_ctrl_vars[i].name, g_ctrl_vars[i].value ? "1" : "0");
+        grub_register_variable_hook(g_ctrl_vars[i].name, ventoy_ctrl_var_read_hook, ventoy_ctrl_var_write_hook);
+    }
+
+    return 0;
+}
+
 int ventoy_env_init(void)
 {
     int i;
@@ -6237,6 +6297,8 @@ int ventoy_env_init(void)
     grub_register_variable_hook("gfxmode", ventoy_gfxmode_read_hook, ventoy_gfxmode_write_hook);
     grub_register_vtoy_menu_lang_hook(ventoy_menu_lang_read_hook);
 
+    ventoy_ctrl_var_init();
+
     g_part_list_buf = grub_malloc(VTOY_PART_BUF_LEN);
     g_tree_script_buf = grub_malloc(VTOY_MAX_SCRIPT_BUF);
     g_list_script_buf = grub_malloc(VTOY_MAX_SCRIPT_BUF);

GRUB2/MOD_SRC/grub-2.04/grub-core/ventoy/ventoy_def.h

@@ -1256,6 +1256,12 @@ typedef struct systemd_menu_ctx
     int len;
 }systemd_menu_ctx;
 
+typedef struct ctrl_var_cfg
+{
+    const char *name;
+    int value;
+}ctrl_var_cfg;
+
 #define vtoy_check_goto_out(p)  if (!p) goto out
 
 extern char *g_tree_script_buf;