[U-Boot] [PATCH v3 16/26] efi_loader: file: support creating a directory
Akashi, Takahiro
takahiro.akashi at linaro.org
Tue Sep 11 06:59:12 UTC 2018
From: AKASHI Takahiro <takahiro.akashi at linaro.org>
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 at linaro.org>
---
lib/efi_loader/efi_file.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
diff --git a/lib/efi_loader/efi_file.c b/lib/efi_loader/efi_file.c
index e6a15bcb523e..6ec98c80227e 100644
--- a/lib/efi_loader/efi_file.c
+++ b/lib/efi_loader/efi_file.c
@@ -130,7 +130,8 @@ static int sanitize_path(char *path)
* 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};
@@ -173,7 +174,12 @@ static struct efi_file_handle *file_open(struct file_system *fs,
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: */
@@ -199,7 +205,7 @@ static efi_status_t EFIAPI efi_file_open(struct efi_file_handle *file,
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);
@@ -598,7 +604,7 @@ efi_open_volume(struct efi_simple_file_system_protocol *this,
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);
}
--
2.18.0
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