efi_loader: file: support creating a directory
In efi world, there is no obvious "mkdir" interface, instead, Open()
with EFI_FILE_MODE_CREATE in mode parameter and EFI_FILE_DIRECTORY
in attributes parameter creates a directory.
In this patch, efi_file_open() is extended so as to accept such
a combination of parameters and call u-boot's mkdir interface for
expected action.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c
index 5dafe28..9294fe5 100644
--- a/lib/efi_loader/efi_file.c
+++ b/lib/efi_loader/efi_file.c
@@ -131,7 +131,8 @@
* With windoze style backlashes, ofc.
*/
static struct efi_file_handle *file_open(struct file_system *fs,
- struct file_handle *parent, s16 *file_name, u64 mode)
+ struct file_handle *parent, s16 *file_name, u64 mode,
+ u64 attributes)
{
struct file_handle *fh;
char f0[MAX_UTF8_PER_UTF16] = {0};
@@ -174,7 +175,12 @@
if (set_blk_dev(fh))
goto error;
- if (!((mode & EFI_FILE_MODE_CREATE) || fs_exists(fh->path)))
+ if ((mode & EFI_FILE_MODE_CREATE) &&
+ (attributes & EFI_FILE_DIRECTORY)) {
+ if (fs_mkdir(fh->path))
+ goto error;
+ } else if (!((mode & EFI_FILE_MODE_CREATE) ||
+ fs_exists(fh->path)))
goto error;
/* figure out if file is a directory: */
@@ -200,7 +206,7 @@
EFI_ENTRY("%p, %p, \"%ls\", %llx, %llu", file, new_handle, file_name,
open_mode, attributes);
- *new_handle = file_open(fh->fs, fh, file_name, open_mode);
+ *new_handle = file_open(fh->fs, fh, file_name, open_mode, attributes);
if (!*new_handle)
return EFI_EXIT(EFI_NOT_FOUND);
@@ -601,7 +607,7 @@
EFI_ENTRY("%p, %p", this, root);
- *root = file_open(fs, NULL, NULL, 0);
+ *root = file_open(fs, NULL, NULL, 0, 0);
return EFI_EXIT(EFI_SUCCESS);
}