mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-18 13:11:31 +00:00
efi_loader: correct file creation
The EFI shell expects that after opening a file with EFI_FILE_MODE_CREATE GetInfo() succeeds. Up to now we do not actually create the file when method Open() of the EFI_FILE_PROTOCOL is called. If method Open() of the EFI_FILE_PROTOCOL is called with EFI_FILE_MODE_CREATE and the file does not yet exist, call fs_write() with a buffer size of zero to actually create the file. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
parent
19b2d895fb
commit
cb0c2a7430
1 changed files with 27 additions and 8 deletions
|
@ -134,6 +134,25 @@ static int sanitize_path(char *path)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* efi_create_file() - create file or directory
|
||||
*
|
||||
* @fh: file handle
|
||||
* @attributes: attributes for newly created file
|
||||
* Returns: 0 for success
|
||||
*/
|
||||
static int efi_create_file(struct file_handle *fh, u64 attributes)
|
||||
{
|
||||
loff_t actwrite;
|
||||
void *buffer = &actwrite;
|
||||
|
||||
if (attributes & EFI_FILE_DIRECTORY)
|
||||
return fs_mkdir(fh->path);
|
||||
else
|
||||
return fs_write(fh->path, map_to_sysmem(buffer), 0, 0,
|
||||
&actwrite);
|
||||
}
|
||||
|
||||
/**
|
||||
* file_open() - open a file handle
|
||||
*
|
||||
|
@ -176,6 +195,7 @@ static struct efi_file_handle *file_open(struct file_system *fs,
|
|||
|
||||
if (parent) {
|
||||
char *p = fh->path;
|
||||
int exists;
|
||||
|
||||
if (plen > 0) {
|
||||
strcpy(p, parent->path);
|
||||
|
@ -192,18 +212,17 @@ static struct efi_file_handle *file_open(struct file_system *fs,
|
|||
if (set_blk_dev(fh))
|
||||
goto error;
|
||||
|
||||
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;
|
||||
|
||||
exists = fs_exists(fh->path);
|
||||
/* fs_exists() calls fs_close(), so open file system again */
|
||||
if (set_blk_dev(fh))
|
||||
goto error;
|
||||
|
||||
if (!exists) {
|
||||
if (!(mode & EFI_FILE_MODE_CREATE) ||
|
||||
efi_create_file(fh, attributes))
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* figure out if file is a directory: */
|
||||
fh->isdir = is_dir(fh);
|
||||
} else {
|
||||
|
|
Loading…
Add table
Reference in a new issue