1 /* 2 * File: linux/nfsacl.h 3 * 4 * (C) 2003 Andreas Gruenbacher <[email protected]> 5 */ 6 #ifndef __LINUX_NFSACL_H 7 #define __LINUX_NFSACL_H 8 9 10 #include <linux/posix_acl.h> 11 #include <linux/sunrpc/xdr.h> 12 #include <uapi/linux/nfsacl.h> 13 14 /* Maximum number of ACL entries over NFS */ 15 #define NFS_ACL_MAX_ENTRIES 1024 16 17 #define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES)) 18 #define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \ 19 >> PAGE_SHIFT) 20 21 #define NFS_ACL_MAX_ENTRIES_INLINE (5) 22 #define NFS_ACL_INLINE_BUFSIZE ((2*(2+3*NFS_ACL_MAX_ENTRIES_INLINE)) << 2) 23 24 static inline unsigned int 25 nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default) 26 { 27 unsigned int w = 16; 28 w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12; 29 if (acl_default) 30 w += max((int)acl_default->a_count, 4) * 12; 31 return w; 32 } 33 34 extern int 35 nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode, 36 struct posix_acl *acl, int encode_entries, int typeflag); 37 extern int 38 nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt, 39 struct posix_acl **pacl); 40 41 #endif /* __LINUX_NFSACL_H */ 42