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fs/jfs/jfs_xattr.h
2.65 KB
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/* |
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* Copyright (C) International Business Machines Corp., 2000-2002 |
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* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See * the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef H_JFS_XATTR #define H_JFS_XATTR /* * 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))) |
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extern int __jfs_setxattr(tid_t, struct inode *, const char *, const void *, size_t, int); |
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extern int jfs_setxattr(struct dentry *, const char *, const void *, size_t, int); extern ssize_t __jfs_getxattr(struct inode *, const char *, void *, size_t); extern ssize_t jfs_getxattr(struct dentry *, const char *, void *, size_t); extern ssize_t jfs_listxattr(struct dentry *, char *, size_t); extern int jfs_removexattr(struct dentry *, const char *); |
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#ifdef CONFIG_JFS_SECURITY |
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extern int jfs_init_security(tid_t, struct inode *, struct inode *, const struct qstr *); |
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#else static inline int jfs_init_security(tid_t tid, struct inode *inode, |
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struct inode *dir, const struct qstr *qstr) |
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{ return 0; } #endif |
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#endif /* H_JFS_XATTR */ |