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nfsd
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export.h

export.h 2.0 KB
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  1. /*
    2. 

  2.  * include/linux/nfsd/export.h
    3. 

  3.  * 
    4. 

  4.  * Public declarations for NFS exports. The definitions for the
    5. 

  5.  * syscall interface are in nfsctl.h
    6. 

  6.  *
    7. 

  7.  * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
    8. 

  8.  */
    9. 

  9. 

  10. #ifndef NFSD_EXPORT_H
    11. 

  11. #define NFSD_EXPORT_H
    12. 

  12. 

  13. # include <linux/types.h>
    14. 

  14. 

  15. /*
    16. 

  16.  * Important limits for the exports stuff.
    17. 

  17.  */
    18. 

  18. #define NFSCLNT_IDMAX		1024
    19. 

  19. #define NFSCLNT_ADDRMAX		16
    20. 

  20. #define NFSCLNT_KEYMAX		32
    21. 

  21. 

  22. /*
    23. 

  23.  * Export flags.
    24. 

  24.  *
    25. 

  25.  * Please update the expflags[] array in fs/nfsd/export.c when adding
    26. 

  26.  * a new flag.
    27. 

  27.  */
    28. 

  28. #define NFSEXP_READONLY		0x0001
    29. 

  29. #define NFSEXP_INSECURE_PORT	0x0002
    30. 

  30. #define NFSEXP_ROOTSQUASH	0x0004
    31. 

  31. #define NFSEXP_ALLSQUASH	0x0008
    32. 

  32. #define NFSEXP_ASYNC		0x0010
    33. 

  33. #define NFSEXP_GATHERED_WRITES	0x0020
    34. 

  34. #define NFSEXP_NOREADDIRPLUS    0x0040
    35. 

  35. /* 80 100 currently unused */
    36. 

  36. #define NFSEXP_NOHIDE		0x0200
    37. 

  37. #define NFSEXP_NOSUBTREECHECK	0x0400
    38. 

  38. #define	NFSEXP_NOAUTHNLM	0x0800		/* Don't authenticate NLM requests - just trust */
    39. 

  39. #define NFSEXP_MSNFS		0x1000	/* do silly things that MS clients expect; no longer supported */
    40. 

  40. #define NFSEXP_FSID		0x2000
    41. 

  41. #define	NFSEXP_CROSSMOUNT	0x4000
    42. 

  42. #define	NFSEXP_NOACL		0x8000	/* reserved for possible ACL related use */
    43. 

  43. /*
    44. 

  44.  * The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
    45. 

  45.  * clients, and only to the single directory that is the root of the
    46. 

  46.  * export; further lookup and readdir operations are treated as if every
    47. 

  47.  * subdirectory was a mountpoint, and ignored if they are not themselves
    48. 

  48.  * exported.  This is used by nfsd and mountd to construct the NFSv4
    49. 

  49.  * pseudofilesystem, which provides access only to paths leading to each
    50. 

  50.  * exported filesystem.
    51. 

  51.  */
    52. 

  52. #define	NFSEXP_V4ROOT		0x10000
    53. 

  53. #define NFSEXP_PNFS		0x20000
    54. 

  54. 

  55. /* All flags that we claim to support.  (Note we don't support NOACL.) */
    56. 

  56. #define NFSEXP_ALLFLAGS		0x3FE7F
    57. 

  57. 

  58. /* The flags that may vary depending on security flavor: */
    59. 

  59. #define NFSEXP_SECINFO_FLAGS	(NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
    60. 

  60. 					| NFSEXP_ALLSQUASH \
    61. 

  61. 					| NFSEXP_INSECURE_PORT)
    62. 

  62. 

  63. 

  64. #endif /* NFSD_EXPORT_H */
    65.