From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- fs/jfs/jfs_xattr.h | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 fs/jfs/jfs_xattr.h (limited to 'fs/jfs/jfs_xattr.h') diff --git a/fs/jfs/jfs_xattr.h b/fs/jfs/jfs_xattr.h new file mode 100644 index 000000000..c50167a7b --- /dev/null +++ b/fs/jfs/jfs_xattr.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) International Business Machines Corp., 2000-2002 + */ + +#ifndef H_JFS_XATTR +#define H_JFS_XATTR + +#include + +/* + * jfs_ea_list describe the on-disk format of the extended attributes. + * I know the null-terminator is redundant since namelen is stored, but + * I am maintaining compatibility with OS/2 where possible. + */ +struct jfs_ea { + u8 flag; /* Unused? */ + u8 namelen; /* Length of name */ + __le16 valuelen; /* Length of value */ + char name[]; /* Attribute name (includes null-terminator) */ +}; /* Value immediately follows name */ + +struct jfs_ea_list { + __le32 size; /* overall size */ + struct jfs_ea ea[]; /* Variable length list */ +}; + +/* Macros for defining maxiumum number of bytes supported for EAs */ +#define MAXEASIZE 65535 +#define MAXEALISTSIZE MAXEASIZE + +/* + * some macros for dealing with variable length EA lists. + */ +#define EA_SIZE(ea) \ + (sizeof (struct jfs_ea) + (ea)->namelen + 1 + \ + le16_to_cpu((ea)->valuelen)) +#define NEXT_EA(ea) ((struct jfs_ea *) (((char *) (ea)) + (EA_SIZE (ea)))) +#define FIRST_EA(ealist) ((ealist)->ea) +#define EALIST_SIZE(ealist) le32_to_cpu((ealist)->size) +#define END_EALIST(ealist) \ + ((struct jfs_ea *) (((char *) (ealist)) + EALIST_SIZE(ealist))) + +extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *, + size_t, int); +extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t); +extern ssize_t jfs_listxattr(struct dentry *, char *, size_t); + +extern const struct xattr_handler *jfs_xattr_handlers[]; + +#ifdef CONFIG_JFS_SECURITY +extern int jfs_init_security(tid_t, struct inode *, struct inode *, + const struct qstr *); +#else +static inline int jfs_init_security(tid_t tid, struct inode *inode, + struct inode *dir, const struct qstr *qstr) +{ + return 0; +} +#endif + +#endif /* H_JFS_XATTR */ -- cgit v1.2.3