/* The auto-loading hook for filesystems. */
static int
autoload_fs_module (void)
{
grub_named_list_t p;
int ret = 0;
grub_file_filter_t grub_file_filters_was[GRUB_FILE_FILTER_MAX];
grub_memcpy (grub_file_filters_was, grub_file_filters_enabled,
sizeof (grub_file_filters_enabled));
grub_memcpy (grub_file_filters_enabled, grub_file_filters_all,
sizeof (grub_file_filters_enabled));
while ((p = fs_module_list) != NULL)
{
if (! grub_dl_get (p->name) && grub_dl_load (p->name))
{
ret = 1;
break;
}
if (grub_errno)
grub_print_error ();
fs_module_list = p->next;
grub_free (p->name);
grub_free (p);
}
grub_memcpy (grub_file_filters_enabled, grub_file_filters_was,
sizeof (grub_file_filters_enabled));
return ret;
}
/* Keep global so that GDB scripts work. */
grub_err_t
grub_dl_add (grub_dl_t mod)
{
if (grub_dl_get (mod->name))
return grub_error (GRUB_ERR_BAD_MODULE,
"`%s' is already loaded", mod->name);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_dl_add (grub_dl_t mod)
{
grub_dl_list_t l;
if (grub_dl_get (mod->name))
return grub_error (GRUB_ERR_BAD_MODULE,
"`%s' is already loaded", mod->name);
l = (grub_dl_list_t) grub_malloc (sizeof (*l));
if (! l)
return grub_errno;
l->mod = mod;
l->next = grub_dl_head;
grub_dl_head = l;
return GRUB_ERR_NONE;
}
/* The auto-loading hook for filesystems. */
static int
autoload_fs_module (void)
{
grub_named_list_t p;
while ((p = fs_module_list) != NULL)
{
if (! grub_dl_get (p->name) && grub_dl_load (p->name))
return 1;
if (grub_errno)
grub_print_error ();
fs_module_list = p->next;
grub_free (p->name);
grub_free (p);
}
return 0;
}
static grub_err_t
grub_cmd_nativedisk (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args_in)
{
char *uuid_root = 0, *uuid_prefix, *prefdev = 0;
const char *prefix = 0;
const char *path_prefix = 0;
int mods_loaded = 0;
grub_dl_t *mods;
const char **args;
int i;
if (argc == 0)
{
argc = ARRAY_SIZE (modnames_def);
args = modnames_def;
}
else
args = (const char **) args_in;
prefix = grub_env_get ("prefix");
if (! prefix)
return grub_error (GRUB_ERR_FILE_NOT_FOUND, N_("variable `%s' isn't set"), "prefix");
if (prefix)
path_prefix = (prefix[0] == '(') ? grub_strchr (prefix, ')') : NULL;
if (path_prefix)
path_prefix++;
else
path_prefix = prefix;
mods = grub_malloc (argc * sizeof (mods[0]));
if (!mods)
return grub_errno;
if (get_uuid (NULL, &uuid_root, 0))
return grub_errno;
prefdev = grub_file_get_device_name (prefix);
if (grub_errno)
{
grub_print_error ();
prefdev = 0;
}
if (get_uuid (prefdev, &uuid_prefix, 0))
{
grub_free (uuid_root);
return grub_errno;
}
grub_dprintf ("nativedisk", "uuid_prefix = %s, uuid_root = %s\n",
uuid_prefix, uuid_root);
for (mods_loaded = 0; mods_loaded < argc; mods_loaded++)
{
char *filename;
grub_dl_t mod;
grub_file_t file = NULL;
grub_ssize_t size;
void *core = 0;
mod = grub_dl_get (args[mods_loaded]);
if (mod)
{
mods[mods_loaded] = 0;
continue;
}
filename = grub_xasprintf ("%s/" GRUB_TARGET_CPU "-" GRUB_PLATFORM "/%s.mod",
prefix, args[mods_loaded]);
if (! filename)
goto fail;
file = grub_file_open (filename);
grub_free (filename);
if (! file)
goto fail;
size = grub_file_size (file);
core = grub_malloc (size);
if (! core)
{
grub_file_close (file);
goto fail;
}
if (grub_file_read (file, core, size) != (grub_ssize_t) size)
{
grub_file_close (file);
grub_free (core);
goto fail;
}
grub_file_close (file);
mods[mods_loaded] = grub_dl_load_core_noinit (core, size);
if (! mods[mods_loaded])
goto fail;
}
for (i = 0; i < argc; i++)
if (mods[i])
grub_dl_init (mods[i]);
if (uuid_prefix || uuid_root)
{
struct search_ctx ctx;
grub_fs_autoload_hook_t saved_autoload;
/* No need to autoload FS since obviously we already have the necessary fs modules. */
saved_autoload = grub_fs_autoload_hook;
grub_fs_autoload_hook = 0;
ctx.root_uuid = uuid_root;
ctx.prefix_uuid = uuid_prefix;
ctx.prefix_path = path_prefix;
ctx.prefix_found = !uuid_prefix;
ctx.root_found = !uuid_root;
/* FIXME: try to guess the correct values. */
grub_device_iterate (iterate_device, &ctx);
grub_fs_autoload_hook = saved_autoload;
}
grub_free (uuid_root);
grub_free (uuid_prefix);
return GRUB_ERR_NONE;
fail:
grub_free (uuid_root);
grub_free (uuid_prefix);
for (i = 0; i < mods_loaded; i++)
if (mods[i])
{
mods[i]->fini = 0;
grub_dl_unload (mods[i]);
}
return grub_errno;
}
/* Read the file command.lst for auto-loading. */
void
read_command_list (const char *prefix)
{
if (prefix)
{
char *filename;
filename = grub_xasprintf ("%s/command.lst", prefix);
if (filename)
{
grub_file_t file;
file = grub_file_open (filename);
if (file)
{
char *buf = NULL;
grub_command_t ptr, last = 0, next;
/* Override previous commands.lst. */
for (ptr = grub_command_list; ptr; ptr = next)
{
next = ptr->next;
if (ptr->func == grub_dyncmd_dispatcher)
{
if (last)
last->next = ptr->next;
else
grub_command_list = ptr->next;
grub_free (ptr);
}
else
last = ptr;
}
for (;; grub_free (buf))
{
char *p, *name, *modname;
grub_command_t cmd;
int prio = 0;
buf = grub_file_getline (file);
if (! buf)
break;
name = buf;
if (*name == '*')
{
name++;
prio++;
}
if (! grub_isgraph (name[0]))
continue;
p = grub_strchr (name, ':');
if (! p)
continue;
*p = '\0';
while (*++p == ' ')
;
if (! grub_isgraph (*p))
continue;
if (grub_dl_get (p))
continue;
name = grub_strdup (name);
if (! name)
continue;
modname = grub_strdup (p);
if (! modname)
{
grub_free (name);
continue;
}
cmd = grub_register_command_prio (name,
grub_dyncmd_dispatcher,
0, N_("not loaded"), prio);
if (! cmd)
{
grub_free (name);
grub_free (modname);
continue;
}
cmd->flags |= GRUB_COMMAND_FLAG_DYNCMD;
cmd->data = modname;
/* Update the active flag. */
grub_command_find (name);
}
grub_file_close (file);
}
grub_free (filename);
}
}
/* Ignore errors. */
grub_errno = GRUB_ERR_NONE;
}
