Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * JFFS2 -- Journalling Flash File System, Version 2.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright © 2006  NEC Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Created by KaiGai Kohei <kaigai@ak.jp.nec.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * For licensing information, see the file 'LICENCE' in this directory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/jffs2.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/xattr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/mtd/mtd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "nodelist.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) static int jffs2_trusted_getxattr(const struct xattr_handler *handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 				  struct dentry *unused, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 				  const char *name, void *buffer, size_t size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 				  int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 				 name, buffer, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static int jffs2_trusted_setxattr(const struct xattr_handler *handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 				  struct dentry *unused, struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 				  const char *name, const void *buffer,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 				  size_t size, int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 				 name, buffer, size, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static bool jffs2_trusted_listxattr(struct dentry *dentry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	return capable(CAP_SYS_ADMIN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) const struct xattr_handler jffs2_trusted_xattr_handler = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	.prefix = XATTR_TRUSTED_PREFIX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	.list = jffs2_trusted_listxattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	.set = jffs2_trusted_setxattr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	.get = jffs2_trusted_getxattr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) };