nfsacl.h 1.4 KB

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  1. /*
  2. * File: linux/nfsacl.h
  3. *
  4. * (C) 2003 Andreas Gruenbacher <agruen@suse.de>
  5. */
  6. #ifndef __LINUX_NFSACL_H
  7. #define __LINUX_NFSACL_H
  8. #define NFS_ACL_PROGRAM 100227
  9. #define ACLPROC2_GETACL 1
  10. #define ACLPROC2_SETACL 2
  11. #define ACLPROC2_GETATTR 3
  12. #define ACLPROC2_ACCESS 4
  13. #define ACLPROC3_GETACL 1
  14. #define ACLPROC3_SETACL 2
  15. /* Flags for the getacl/setacl mode */
  16. #define NFS_ACL 0x0001
  17. #define NFS_ACLCNT 0x0002
  18. #define NFS_DFACL 0x0004
  19. #define NFS_DFACLCNT 0x0008
  20. /* Flag for Default ACL entries */
  21. #define NFS_ACL_DEFAULT 0x1000
  22. #ifdef __KERNEL__
  23. #include <linux/posix_acl.h>
  24. /* Maximum number of ACL entries over NFS */
  25. #define NFS_ACL_MAX_ENTRIES 1024
  26. #define NFSACL_MAXWORDS (2*(2+3*NFS_ACL_MAX_ENTRIES))
  27. #define NFSACL_MAXPAGES ((2*(8+12*NFS_ACL_MAX_ENTRIES) + PAGE_SIZE-1) \
  28. >> PAGE_SHIFT)
  29. static inline unsigned int
  30. nfsacl_size(struct posix_acl *acl_access, struct posix_acl *acl_default)
  31. {
  32. unsigned int w = 16;
  33. w += max(acl_access ? (int)acl_access->a_count : 3, 4) * 12;
  34. if (acl_default)
  35. w += max((int)acl_default->a_count, 4) * 12;
  36. return w;
  37. }
  38. extern unsigned int
  39. nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
  40. struct posix_acl *acl, int encode_entries, int typeflag);
  41. extern unsigned int
  42. nfsacl_decode(struct xdr_buf *buf, unsigned int base, unsigned int *aclcnt,
  43. struct posix_acl **pacl);
  44. #endif /* __KERNEL__ */
  45. #endif /* __LINUX_NFSACL_H */