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- /*
- File: linux/xattr_acl.h
-
- (extended attribute representation of access control lists)
-
- (C) 2000 Andreas Gruenbacher, <a.gruenbacher@computer.org>
- */
-
- #ifndef _LINUX_XATTR_ACL_H
- #define _LINUX_XATTR_ACL_H
-
- #include <linux/posix_acl.h>
-
- #define XATTR_NAME_ACL_ACCESS "system.posix_acl_access"
- #define XATTR_NAME_ACL_DEFAULT "system.posix_acl_default"
-
- #define XATTR_ACL_VERSION 0x0002
-
- typedef struct {
- __u16 e_tag;
- __u16 e_perm;
- __u32 e_id;
- } xattr_acl_entry;
-
- typedef struct {
- __u32 a_version;
- xattr_acl_entry a_entries[0];
- } xattr_acl_header;
-
- static inline size_t xattr_acl_size(int count)
- {
- return sizeof(xattr_acl_header) + count * sizeof(xattr_acl_entry);
- }
-
- static inline int xattr_acl_count(size_t size)
- {
- if (size < sizeof(xattr_acl_header))
- return -1;
- size -= sizeof(xattr_acl_header);
- if (size % sizeof(xattr_acl_entry))
- return -1;
- return size / sizeof(xattr_acl_entry);
- }
-
- struct posix_acl * posix_acl_from_xattr(const void *value, size_t size);
- int posix_acl_to_xattr(const struct posix_acl *acl, void *buffer, size_t size);
-
-
-
- #endif /* _LINUX_XATTR_ACL_H */
-