/* 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 <linux/xattr.h> /* * 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[0]; /* Attribute name (includes null-terminator) */ }; /* Value immediately follows name */ struct jfs_ea_list { __le32 size; /* overall size */ struct jfs_ea ea[0]; /* 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 [31mCONFIG_JFS_SECURITY[0m 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 */ |