This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / linux / reiserfs_acl.h

diff --git a/include/linux/reiserfs_acl.h b/include/linux/reiserfs_acl.h
new file mode 100644 (file)
index 0000000..acfde2d
--- /dev/null
+++ b/include/linux/reiserfs_acl.h
@@ -0,0 +1,91 @@
+#include <linux/init.h>
+#include <linux/posix_acl.h>
+#include <linux/xattr_acl.h>
+
+#define REISERFS_ACL_VERSION   0x0001
+
+typedef struct {
+       __u16           e_tag;
+       __u16           e_perm;
+       __u32           e_id;
+} reiserfs_acl_entry;
+
+typedef struct {
+       __u16           e_tag;
+       __u16           e_perm;
+} reiserfs_acl_entry_short;
+
+typedef struct {
+       __u32           a_version;
+} reiserfs_acl_header;
+
+static inline size_t reiserfs_acl_size(int count)
+{
+       if (count <= 4) {
+               return sizeof(reiserfs_acl_header) +
+                      count * sizeof(reiserfs_acl_entry_short);
+       } else {
+               return sizeof(reiserfs_acl_header) +
+                      4 * sizeof(reiserfs_acl_entry_short) +
+                      (count - 4) * sizeof(reiserfs_acl_entry);
+       }
+}
+
+static inline int reiserfs_acl_count(size_t size)
+{
+       ssize_t s;
+       size -= sizeof(reiserfs_acl_header);
+       s = size - 4 * sizeof(reiserfs_acl_entry_short);
+       if (s < 0) {
+               if (size % sizeof(reiserfs_acl_entry_short))
+                       return -1;
+               return size / sizeof(reiserfs_acl_entry_short);
+       } else {
+               if (s % sizeof(reiserfs_acl_entry))
+                       return -1;
+               return s / sizeof(reiserfs_acl_entry) + 4;
+       }
+}
+
+
+#ifdef CONFIG_REISERFS_FS_POSIX_ACL
+struct posix_acl * reiserfs_get_acl(struct inode *inode, int type);
+int reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl);
+int reiserfs_acl_chmod (struct inode *inode);
+int reiserfs_inherit_default_acl (struct inode *dir, struct dentry *dentry, struct inode *inode);
+int reiserfs_cache_default_acl (struct inode *dir);
+extern int reiserfs_xattr_posix_acl_init (void) __init;
+extern int reiserfs_xattr_posix_acl_exit (void);
+extern struct reiserfs_xattr_handler posix_acl_default_handler;
+extern struct reiserfs_xattr_handler posix_acl_access_handler;
+#else
+
+#define reiserfs_set_acl NULL
+#define reiserfs_get_acl NULL
+#define reiserfs_cache_default_acl(inode) 0
+
+static inline int
+reiserfs_xattr_posix_acl_init (void)
+{
+    return 0;
+}
+
+static inline int
+reiserfs_xattr_posix_acl_exit (void)
+{
+    return 0;
+}
+
+static inline int
+reiserfs_acl_chmod (struct inode *inode)
+{
+    return 0;
+}
+
+static inline int
+reiserfs_inherit_default_acl (const struct inode *dir, struct dentry *dentry, struct inode *inode)
+{
+    return 0;
+}
+
+#endif