mirror of
https://github.com/Fishwaldo/Star64_linux.git
synced 2025-04-15 19:04:04 +00:00
f7a4f689bc
In preparation for refactoring kernel_read_file*(), remove the redundant "size" argument which is not needed: it can be included in the return code, with callers adjusted. (VFS reads already cannot be larger than INT_MAX.) Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: James Morris <jamorris@linux.microsoft.com> Acked-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20201002173828.2099543-6-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_KERNEL_READ_FILE_H
|
|
#define _LINUX_KERNEL_READ_FILE_H
|
|
|
|
#include <linux/file.h>
|
|
#include <linux/types.h>
|
|
|
|
/* This is a list of *what* is being read, not *how* nor *where*. */
|
|
#define __kernel_read_file_id(id) \
|
|
id(UNKNOWN, unknown) \
|
|
id(FIRMWARE, firmware) \
|
|
id(MODULE, kernel-module) \
|
|
id(KEXEC_IMAGE, kexec-image) \
|
|
id(KEXEC_INITRAMFS, kexec-initramfs) \
|
|
id(POLICY, security-policy) \
|
|
id(X509_CERTIFICATE, x509-certificate) \
|
|
id(MAX_ID, )
|
|
|
|
#define __fid_enumify(ENUM, dummy) READING_ ## ENUM,
|
|
#define __fid_stringify(dummy, str) #str,
|
|
|
|
enum kernel_read_file_id {
|
|
__kernel_read_file_id(__fid_enumify)
|
|
};
|
|
|
|
static const char * const kernel_read_file_str[] = {
|
|
__kernel_read_file_id(__fid_stringify)
|
|
};
|
|
|
|
static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id)
|
|
{
|
|
if ((unsigned int)id >= READING_MAX_ID)
|
|
return kernel_read_file_str[READING_UNKNOWN];
|
|
|
|
return kernel_read_file_str[id];
|
|
}
|
|
|
|
int kernel_read_file(struct file *file,
|
|
void **buf, loff_t max_size,
|
|
enum kernel_read_file_id id);
|
|
int kernel_read_file_from_path(const char *path,
|
|
void **buf, loff_t max_size,
|
|
enum kernel_read_file_id id);
|
|
int kernel_read_file_from_path_initns(const char *path,
|
|
void **buf, loff_t max_size,
|
|
enum kernel_read_file_id id);
|
|
int kernel_read_file_from_fd(int fd,
|
|
void **buf, loff_t max_size,
|
|
enum kernel_read_file_id id);
|
|
|
|
#endif /* _LINUX_KERNEL_READ_FILE_H */
|