nfs.h 5.2 KB

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  1. /*
  2. * NFS protocol definitions
  3. *
  4. * This file contains constants mostly for Version 2 of the protocol,
  5. * but also has a couple of NFSv3 bits in (notably the error codes).
  6. */
  7. #ifndef _LINUX_NFS_H
  8. #define _LINUX_NFS_H
  9. #define NFS_PROGRAM 100003
  10. #define NFS_PORT 2049
  11. #define NFS_MAXDATA 8192
  12. #define NFS_MAXPATHLEN 1024
  13. #define NFS_MAXNAMLEN 255
  14. #define NFS_MAXGROUPS 16
  15. #define NFS_FHSIZE 32
  16. #define NFS_COOKIESIZE 4
  17. #define NFS_FIFO_DEV (-1)
  18. #define NFSMODE_FMT 0170000
  19. #define NFSMODE_DIR 0040000
  20. #define NFSMODE_CHR 0020000
  21. #define NFSMODE_BLK 0060000
  22. #define NFSMODE_REG 0100000
  23. #define NFSMODE_LNK 0120000
  24. #define NFSMODE_SOCK 0140000
  25. #define NFSMODE_FIFO 0010000
  26. #define NFS_MNT_PROGRAM 100005
  27. #define NFS_MNT_PORT 627
  28. /*
  29. * NFS stats. The good thing with these values is that NFSv3 errors are
  30. * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
  31. * no-one uses anyway), so we can happily mix code as long as we make sure
  32. * no NFSv3 errors are returned to NFSv2 clients.
  33. * Error codes that have a `--' in the v2 column are not part of the
  34. * standard, but seem to be widely used nevertheless.
  35. */
  36. enum nfs_stat {
  37. NFS_OK = 0, /* v2 v3 v4 */
  38. NFSERR_PERM = 1, /* v2 v3 v4 */
  39. NFSERR_NOENT = 2, /* v2 v3 v4 */
  40. NFSERR_IO = 5, /* v2 v3 v4 */
  41. NFSERR_NXIO = 6, /* v2 v3 v4 */
  42. NFSERR_EAGAIN = 11, /* v2 v3 */
  43. NFSERR_ACCES = 13, /* v2 v3 v4 */
  44. NFSERR_EXIST = 17, /* v2 v3 v4 */
  45. NFSERR_XDEV = 18, /* v3 v4 */
  46. NFSERR_NODEV = 19, /* v2 v3 v4 */
  47. NFSERR_NOTDIR = 20, /* v2 v3 v4 */
  48. NFSERR_ISDIR = 21, /* v2 v3 v4 */
  49. NFSERR_INVAL = 22, /* v2 v3 v4 */
  50. NFSERR_FBIG = 27, /* v2 v3 v4 */
  51. NFSERR_NOSPC = 28, /* v2 v3 v4 */
  52. NFSERR_ROFS = 30, /* v2 v3 v4 */
  53. NFSERR_MLINK = 31, /* v3 v4 */
  54. NFSERR_OPNOTSUPP = 45, /* v2 v3 */
  55. NFSERR_NAMETOOLONG = 63, /* v2 v3 v4 */
  56. NFSERR_NOTEMPTY = 66, /* v2 v3 v4 */
  57. NFSERR_DQUOT = 69, /* v2 v3 v4 */
  58. NFSERR_STALE = 70, /* v2 v3 v4 */
  59. NFSERR_REMOTE = 71, /* v2 v3 */
  60. NFSERR_WFLUSH = 99, /* v2 */
  61. NFSERR_BADHANDLE = 10001, /* v3 v4 */
  62. NFSERR_NOT_SYNC = 10002, /* v3 */
  63. NFSERR_BAD_COOKIE = 10003, /* v3 v4 */
  64. NFSERR_NOTSUPP = 10004, /* v3 v4 */
  65. NFSERR_TOOSMALL = 10005, /* v3 v4 */
  66. NFSERR_SERVERFAULT = 10006, /* v3 v4 */
  67. NFSERR_BADTYPE = 10007, /* v3 v4 */
  68. NFSERR_JUKEBOX = 10008, /* v3 v4 */
  69. NFSERR_SAME = 10009, /* v4 */
  70. NFSERR_DENIED = 10010, /* v4 */
  71. NFSERR_EXPIRED = 10011, /* v4 */
  72. NFSERR_LOCKED = 10012, /* v4 */
  73. NFSERR_GRACE = 10013, /* v4 */
  74. NFSERR_FHEXPIRED = 10014, /* v4 */
  75. NFSERR_SHARE_DENIED = 10015, /* v4 */
  76. NFSERR_WRONGSEC = 10016, /* v4 */
  77. NFSERR_CLID_INUSE = 10017, /* v4 */
  78. NFSERR_RESOURCE = 10018, /* v4 */
  79. NFSERR_MOVED = 10019, /* v4 */
  80. NFSERR_NOFILEHANDLE = 10020, /* v4 */
  81. NFSERR_MINOR_VERS_MISMATCH = 10021, /* v4 */
  82. NFSERR_STALE_CLIENTID = 10022, /* v4 */
  83. NFSERR_STALE_STATEID = 10023, /* v4 */
  84. NFSERR_OLD_STATEID = 10024, /* v4 */
  85. NFSERR_BAD_STATEID = 10025, /* v4 */
  86. NFSERR_BAD_SEQID = 10026, /* v4 */
  87. NFSERR_NOT_SAME = 10027, /* v4 */
  88. NFSERR_LOCK_RANGE = 10028, /* v4 */
  89. NFSERR_SYMLINK = 10029, /* v4 */
  90. NFSERR_RESTOREFH = 10030, /* v4 */
  91. NFSERR_LEASE_MOVED = 10031, /* v4 */
  92. NFSERR_ATTRNOTSUPP = 10032, /* v4 */
  93. NFSERR_NO_GRACE = 10033, /* v4 */
  94. NFSERR_RECLAIM_BAD = 10034, /* v4 */
  95. NFSERR_RECLAIM_CONFLICT = 10035,/* v4 */
  96. NFSERR_BAD_XDR = 10036, /* v4 */
  97. NFSERR_LOCKS_HELD = 10037, /* v4 */
  98. NFSERR_OPENMODE = 10038, /* v4 */
  99. NFSERR_BADOWNER = 10039, /* v4 */
  100. NFSERR_BADCHAR = 10040, /* v4 */
  101. NFSERR_BADNAME = 10041, /* v4 */
  102. NFSERR_BAD_RANGE = 10042, /* v4 */
  103. NFSERR_LOCK_NOTSUPP = 10043, /* v4 */
  104. NFSERR_OP_ILLEGAL = 10044, /* v4 */
  105. NFSERR_DEADLOCK = 10045, /* v4 */
  106. NFSERR_FILE_OPEN = 10046, /* v4 */
  107. NFSERR_ADMIN_REVOKED = 10047, /* v4 */
  108. NFSERR_CB_PATH_DOWN = 10048, /* v4 */
  109. NFSERR_REPLAY_ME = 10049 /* v4 */
  110. };
  111. /* NFSv2 file types - beware, these are not the same in NFSv3 */
  112. enum nfs_ftype {
  113. NFNON = 0,
  114. NFREG = 1,
  115. NFDIR = 2,
  116. NFBLK = 3,
  117. NFCHR = 4,
  118. NFLNK = 5,
  119. NFSOCK = 6,
  120. NFBAD = 7,
  121. NFFIFO = 8
  122. };
  123. #ifdef __KERNEL__
  124. #include <linux/sunrpc/msg_prot.h>
  125. #include <linux/string.h>
  126. /*
  127. * This is the kernel NFS client file handle representation
  128. */
  129. #define NFS_MAXFHSIZE 128
  130. struct nfs_fh {
  131. unsigned short size;
  132. unsigned char data[NFS_MAXFHSIZE];
  133. };
  134. /*
  135. * Returns a zero iff the size and data fields match.
  136. * Checks only "size" bytes in the data field.
  137. */
  138. static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b)
  139. {
  140. return a->size != b->size || memcmp(a->data, b->data, a->size) != 0;
  141. }
  142. static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source)
  143. {
  144. target->size = source->size;
  145. memcpy(target->data, source->data, source->size);
  146. }
  147. /*
  148. * This is really a general kernel constant, but since nothing like
  149. * this is defined in the kernel headers, I have to do it here.
  150. */
  151. #define NFS_OFFSET_MAX ((__s64)((~(__u64)0) >> 1))
  152. enum nfs3_stable_how {
  153. NFS_UNSTABLE = 0,
  154. NFS_DATA_SYNC = 1,
  155. NFS_FILE_SYNC = 2
  156. };
  157. #endif /* __KERNEL__ */
  158. #endif /* _LINUX_NFS_H */