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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/linux/reiserfs_xattr.h | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/linux/reiserfs_xattr.h')
-rw-r--r-- | include/linux/reiserfs_xattr.h | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/include/linux/reiserfs_xattr.h b/include/linux/reiserfs_xattr.h new file mode 100644 index 000000000000..1eaa48eca811 --- /dev/null +++ b/include/linux/reiserfs_xattr.h @@ -0,0 +1,139 @@ +/* + File: linux/reiserfs_xattr.h +*/ + +#include <linux/config.h> +#include <linux/init.h> +#include <linux/xattr.h> + +/* Magic value in header */ +#define REISERFS_XATTR_MAGIC 0x52465841 /* "RFXA" */ + +struct reiserfs_xattr_header { + __u32 h_magic; /* magic number for identification */ + __u32 h_hash; /* hash of the value */ +}; + +#ifdef __KERNEL__ + +struct reiserfs_xattr_handler { + char *prefix; + int (*init)(void); + void (*exit)(void); + int (*get)(struct inode *inode, const char *name, void *buffer, + size_t size); + int (*set)(struct inode *inode, const char *name, const void *buffer, + size_t size, int flags); + int (*del)(struct inode *inode, const char *name); + int (*list)(struct inode *inode, const char *name, int namelen, char *out); + struct list_head handlers; +}; + + +#ifdef CONFIG_REISERFS_FS_XATTR +#define is_reiserfs_priv_object(inode) IS_PRIVATE(inode) +#define has_xattr_dir(inode) (REISERFS_I(inode)->i_flags & i_has_xattr_dir) +ssize_t reiserfs_getxattr (struct dentry *dentry, const char *name, + void *buffer, size_t size); +int reiserfs_setxattr (struct dentry *dentry, const char *name, + const void *value, size_t size, int flags); +ssize_t reiserfs_listxattr (struct dentry *dentry, char *buffer, size_t size); +int reiserfs_removexattr (struct dentry *dentry, const char *name); +int reiserfs_delete_xattrs (struct inode *inode); +int reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs); +int reiserfs_xattr_init (struct super_block *sb, int mount_flags); +int reiserfs_permission (struct inode *inode, int mask, struct nameidata *nd); +int reiserfs_permission_locked (struct inode *inode, int mask, struct nameidata *nd); + +int reiserfs_xattr_del (struct inode *, const char *); +int reiserfs_xattr_get (const struct inode *, const char *, void *, size_t); +int reiserfs_xattr_set (struct inode *, const char *, const void *, + size_t, int); + +extern struct reiserfs_xattr_handler user_handler; +extern struct reiserfs_xattr_handler trusted_handler; +#ifdef CONFIG_REISERFS_FS_SECURITY +extern struct reiserfs_xattr_handler security_handler; +#endif + +int reiserfs_xattr_register_handlers (void) __init; +void reiserfs_xattr_unregister_handlers (void); + +static inline void +reiserfs_write_lock_xattrs(struct super_block *sb) +{ + down_write (&REISERFS_XATTR_DIR_SEM(sb)); +} +static inline void +reiserfs_write_unlock_xattrs(struct super_block *sb) +{ + up_write (&REISERFS_XATTR_DIR_SEM(sb)); +} +static inline void +reiserfs_read_lock_xattrs(struct super_block *sb) +{ + down_read (&REISERFS_XATTR_DIR_SEM(sb)); +} + +static inline void +reiserfs_read_unlock_xattrs(struct super_block *sb) +{ + up_read (&REISERFS_XATTR_DIR_SEM(sb)); +} + +static inline void +reiserfs_write_lock_xattr_i(struct inode *inode) +{ + down_write (&REISERFS_I(inode)->xattr_sem); +} +static inline void +reiserfs_write_unlock_xattr_i(struct inode *inode) +{ + up_write (&REISERFS_I(inode)->xattr_sem); +} +static inline void +reiserfs_read_lock_xattr_i(struct inode *inode) +{ + down_read (&REISERFS_I(inode)->xattr_sem); +} + +static inline void +reiserfs_read_unlock_xattr_i(struct inode *inode) +{ + up_read (&REISERFS_I(inode)->xattr_sem); +} + +static inline void +reiserfs_mark_inode_private(struct inode *inode) +{ + inode->i_flags |= S_PRIVATE; +} + +#else + +#define is_reiserfs_priv_object(inode) 0 +#define reiserfs_mark_inode_private(inode) +#define reiserfs_getxattr NULL +#define reiserfs_setxattr NULL +#define reiserfs_listxattr NULL +#define reiserfs_removexattr NULL +#define reiserfs_write_lock_xattrs(sb) +#define reiserfs_write_unlock_xattrs(sb) +#define reiserfs_read_lock_xattrs(sb) +#define reiserfs_read_unlock_xattrs(sb) + +#define reiserfs_permission NULL + +#define reiserfs_xattr_register_handlers() 0 +#define reiserfs_xattr_unregister_handlers() + +static inline int reiserfs_delete_xattrs (struct inode *inode) { return 0; }; +static inline int reiserfs_chown_xattrs (struct inode *inode, struct iattr *attrs) { return 0; }; +static inline int reiserfs_xattr_init (struct super_block *sb, int mount_flags) +{ + sb->s_flags = (sb->s_flags & ~MS_POSIXACL); /* to be sure */ + return 0; +}; +#endif + +#endif /* __KERNEL__ */ |