nfs4.h 19 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * include/linux/nfs4.h
  4. *
  5. * NFSv4 protocol definitions.
  6. *
  7. * Copyright (c) 2002 The Regents of the University of Michigan.
  8. * All rights reserved.
  9. *
  10. * Kendrick Smith <kmsmith@umich.edu>
  11. * Andy Adamson <andros@umich.edu>
  12. */
  13. #ifndef _LINUX_NFS4_H
  14. #define _LINUX_NFS4_H
  15. #include <linux/list.h>
  16. #include <linux/uidgid.h>
  17. #include <uapi/linux/nfs4.h>
  18. #include <linux/sunrpc/msg_prot.h>
  19. enum nfs4_acl_whotype {
  20. NFS4_ACL_WHO_NAMED = 0,
  21. NFS4_ACL_WHO_OWNER,
  22. NFS4_ACL_WHO_GROUP,
  23. NFS4_ACL_WHO_EVERYONE,
  24. };
  25. struct nfs4_ace {
  26. uint32_t type;
  27. uint32_t flag;
  28. uint32_t access_mask;
  29. int whotype;
  30. union {
  31. kuid_t who_uid;
  32. kgid_t who_gid;
  33. };
  34. };
  35. struct nfs4_acl {
  36. uint32_t naces;
  37. struct nfs4_ace aces[];
  38. };
  39. #define NFS4_MAXLABELLEN 2048
  40. struct nfs4_label {
  41. uint32_t lfs;
  42. uint32_t pi;
  43. u32 len;
  44. char *label;
  45. };
  46. typedef struct { char data[NFS4_VERIFIER_SIZE]; } nfs4_verifier;
  47. struct nfs4_stateid_struct {
  48. union {
  49. char data[NFS4_STATEID_SIZE];
  50. struct {
  51. __be32 seqid;
  52. char other[NFS4_STATEID_OTHER_SIZE];
  53. } __attribute__ ((packed));
  54. };
  55. enum {
  56. NFS4_INVALID_STATEID_TYPE = 0,
  57. NFS4_SPECIAL_STATEID_TYPE,
  58. NFS4_OPEN_STATEID_TYPE,
  59. NFS4_LOCK_STATEID_TYPE,
  60. NFS4_DELEGATION_STATEID_TYPE,
  61. NFS4_LAYOUT_STATEID_TYPE,
  62. NFS4_PNFS_DS_STATEID_TYPE,
  63. NFS4_REVOKED_STATEID_TYPE,
  64. } type;
  65. };
  66. typedef struct nfs4_stateid_struct nfs4_stateid;
  67. enum nfs_opnum4 {
  68. OP_ACCESS = 3,
  69. OP_CLOSE = 4,
  70. OP_COMMIT = 5,
  71. OP_CREATE = 6,
  72. OP_DELEGPURGE = 7,
  73. OP_DELEGRETURN = 8,
  74. OP_GETATTR = 9,
  75. OP_GETFH = 10,
  76. OP_LINK = 11,
  77. OP_LOCK = 12,
  78. OP_LOCKT = 13,
  79. OP_LOCKU = 14,
  80. OP_LOOKUP = 15,
  81. OP_LOOKUPP = 16,
  82. OP_NVERIFY = 17,
  83. OP_OPEN = 18,
  84. OP_OPENATTR = 19,
  85. OP_OPEN_CONFIRM = 20,
  86. OP_OPEN_DOWNGRADE = 21,
  87. OP_PUTFH = 22,
  88. OP_PUTPUBFH = 23,
  89. OP_PUTROOTFH = 24,
  90. OP_READ = 25,
  91. OP_READDIR = 26,
  92. OP_READLINK = 27,
  93. OP_REMOVE = 28,
  94. OP_RENAME = 29,
  95. OP_RENEW = 30,
  96. OP_RESTOREFH = 31,
  97. OP_SAVEFH = 32,
  98. OP_SECINFO = 33,
  99. OP_SETATTR = 34,
  100. OP_SETCLIENTID = 35,
  101. OP_SETCLIENTID_CONFIRM = 36,
  102. OP_VERIFY = 37,
  103. OP_WRITE = 38,
  104. OP_RELEASE_LOCKOWNER = 39,
  105. /* nfs41 */
  106. OP_BACKCHANNEL_CTL = 40,
  107. OP_BIND_CONN_TO_SESSION = 41,
  108. OP_EXCHANGE_ID = 42,
  109. OP_CREATE_SESSION = 43,
  110. OP_DESTROY_SESSION = 44,
  111. OP_FREE_STATEID = 45,
  112. OP_GET_DIR_DELEGATION = 46,
  113. OP_GETDEVICEINFO = 47,
  114. OP_GETDEVICELIST = 48,
  115. OP_LAYOUTCOMMIT = 49,
  116. OP_LAYOUTGET = 50,
  117. OP_LAYOUTRETURN = 51,
  118. OP_SECINFO_NO_NAME = 52,
  119. OP_SEQUENCE = 53,
  120. OP_SET_SSV = 54,
  121. OP_TEST_STATEID = 55,
  122. OP_WANT_DELEGATION = 56,
  123. OP_DESTROY_CLIENTID = 57,
  124. OP_RECLAIM_COMPLETE = 58,
  125. /* nfs42 */
  126. OP_ALLOCATE = 59,
  127. OP_COPY = 60,
  128. OP_COPY_NOTIFY = 61,
  129. OP_DEALLOCATE = 62,
  130. OP_IO_ADVISE = 63,
  131. OP_LAYOUTERROR = 64,
  132. OP_LAYOUTSTATS = 65,
  133. OP_OFFLOAD_CANCEL = 66,
  134. OP_OFFLOAD_STATUS = 67,
  135. OP_READ_PLUS = 68,
  136. OP_SEEK = 69,
  137. OP_WRITE_SAME = 70,
  138. OP_CLONE = 71,
  139. /* xattr support (RFC8726) */
  140. OP_GETXATTR = 72,
  141. OP_SETXATTR = 73,
  142. OP_LISTXATTRS = 74,
  143. OP_REMOVEXATTR = 75,
  144. OP_ILLEGAL = 10044,
  145. };
  146. /*Defining first and last NFS4 operations implemented.
  147. Needs to be updated if more operations are defined in future.*/
  148. #define FIRST_NFS4_OP OP_ACCESS
  149. #define LAST_NFS40_OP OP_RELEASE_LOCKOWNER
  150. #define LAST_NFS41_OP OP_RECLAIM_COMPLETE
  151. #define LAST_NFS42_OP OP_REMOVEXATTR
  152. #define LAST_NFS4_OP LAST_NFS42_OP
  153. enum nfsstat4 {
  154. NFS4_OK = 0,
  155. NFS4ERR_PERM = 1,
  156. NFS4ERR_NOENT = 2,
  157. NFS4ERR_IO = 5,
  158. NFS4ERR_NXIO = 6,
  159. NFS4ERR_ACCESS = 13,
  160. NFS4ERR_EXIST = 17,
  161. NFS4ERR_XDEV = 18,
  162. /* Unused/reserved 19 */
  163. NFS4ERR_NOTDIR = 20,
  164. NFS4ERR_ISDIR = 21,
  165. NFS4ERR_INVAL = 22,
  166. NFS4ERR_FBIG = 27,
  167. NFS4ERR_NOSPC = 28,
  168. NFS4ERR_ROFS = 30,
  169. NFS4ERR_MLINK = 31,
  170. NFS4ERR_NAMETOOLONG = 63,
  171. NFS4ERR_NOTEMPTY = 66,
  172. NFS4ERR_DQUOT = 69,
  173. NFS4ERR_STALE = 70,
  174. NFS4ERR_BADHANDLE = 10001,
  175. NFS4ERR_BAD_COOKIE = 10003,
  176. NFS4ERR_NOTSUPP = 10004,
  177. NFS4ERR_TOOSMALL = 10005,
  178. NFS4ERR_SERVERFAULT = 10006,
  179. NFS4ERR_BADTYPE = 10007,
  180. NFS4ERR_DELAY = 10008,
  181. NFS4ERR_SAME = 10009,
  182. NFS4ERR_DENIED = 10010,
  183. NFS4ERR_EXPIRED = 10011,
  184. NFS4ERR_LOCKED = 10012,
  185. NFS4ERR_GRACE = 10013,
  186. NFS4ERR_FHEXPIRED = 10014,
  187. NFS4ERR_SHARE_DENIED = 10015,
  188. NFS4ERR_WRONGSEC = 10016,
  189. NFS4ERR_CLID_INUSE = 10017,
  190. NFS4ERR_RESOURCE = 10018,
  191. NFS4ERR_MOVED = 10019,
  192. NFS4ERR_NOFILEHANDLE = 10020,
  193. NFS4ERR_MINOR_VERS_MISMATCH = 10021,
  194. NFS4ERR_STALE_CLIENTID = 10022,
  195. NFS4ERR_STALE_STATEID = 10023,
  196. NFS4ERR_OLD_STATEID = 10024,
  197. NFS4ERR_BAD_STATEID = 10025,
  198. NFS4ERR_BAD_SEQID = 10026,
  199. NFS4ERR_NOT_SAME = 10027,
  200. NFS4ERR_LOCK_RANGE = 10028,
  201. NFS4ERR_SYMLINK = 10029,
  202. NFS4ERR_RESTOREFH = 10030,
  203. NFS4ERR_LEASE_MOVED = 10031,
  204. NFS4ERR_ATTRNOTSUPP = 10032,
  205. NFS4ERR_NO_GRACE = 10033,
  206. NFS4ERR_RECLAIM_BAD = 10034,
  207. NFS4ERR_RECLAIM_CONFLICT = 10035,
  208. NFS4ERR_BADXDR = 10036,
  209. NFS4ERR_LOCKS_HELD = 10037,
  210. NFS4ERR_OPENMODE = 10038,
  211. NFS4ERR_BADOWNER = 10039,
  212. NFS4ERR_BADCHAR = 10040,
  213. NFS4ERR_BADNAME = 10041,
  214. NFS4ERR_BAD_RANGE = 10042,
  215. NFS4ERR_LOCK_NOTSUPP = 10043,
  216. NFS4ERR_OP_ILLEGAL = 10044,
  217. NFS4ERR_DEADLOCK = 10045,
  218. NFS4ERR_FILE_OPEN = 10046,
  219. NFS4ERR_ADMIN_REVOKED = 10047,
  220. NFS4ERR_CB_PATH_DOWN = 10048,
  221. /* nfs41 */
  222. NFS4ERR_BADIOMODE = 10049,
  223. NFS4ERR_BADLAYOUT = 10050,
  224. NFS4ERR_BAD_SESSION_DIGEST = 10051,
  225. NFS4ERR_BADSESSION = 10052,
  226. NFS4ERR_BADSLOT = 10053,
  227. NFS4ERR_COMPLETE_ALREADY = 10054,
  228. NFS4ERR_CONN_NOT_BOUND_TO_SESSION = 10055,
  229. NFS4ERR_DELEG_ALREADY_WANTED = 10056,
  230. NFS4ERR_BACK_CHAN_BUSY = 10057, /* backchan reqs outstanding */
  231. NFS4ERR_LAYOUTTRYLATER = 10058,
  232. NFS4ERR_LAYOUTUNAVAILABLE = 10059,
  233. NFS4ERR_NOMATCHING_LAYOUT = 10060,
  234. NFS4ERR_RECALLCONFLICT = 10061,
  235. NFS4ERR_UNKNOWN_LAYOUTTYPE = 10062,
  236. NFS4ERR_SEQ_MISORDERED = 10063, /* unexpected seq.id in req */
  237. NFS4ERR_SEQUENCE_POS = 10064, /* [CB_]SEQ. op not 1st op */
  238. NFS4ERR_REQ_TOO_BIG = 10065, /* request too big */
  239. NFS4ERR_REP_TOO_BIG = 10066, /* reply too big */
  240. NFS4ERR_REP_TOO_BIG_TO_CACHE = 10067, /* rep. not all cached */
  241. NFS4ERR_RETRY_UNCACHED_REP = 10068, /* retry & rep. uncached */
  242. NFS4ERR_UNSAFE_COMPOUND = 10069, /* retry/recovery too hard */
  243. NFS4ERR_TOO_MANY_OPS = 10070, /* too many ops in [CB_]COMP */
  244. NFS4ERR_OP_NOT_IN_SESSION = 10071, /* op needs [CB_]SEQ. op */
  245. NFS4ERR_HASH_ALG_UNSUPP = 10072, /* hash alg. not supp. */
  246. /* Error 10073 is unused. */
  247. NFS4ERR_CLIENTID_BUSY = 10074, /* clientid has state */
  248. NFS4ERR_PNFS_IO_HOLE = 10075, /* IO to _SPARSE file hole */
  249. NFS4ERR_SEQ_FALSE_RETRY = 10076, /* retry not original */
  250. NFS4ERR_BAD_HIGH_SLOT = 10077, /* sequence arg bad */
  251. NFS4ERR_DEADSESSION = 10078, /* persistent session dead */
  252. NFS4ERR_ENCR_ALG_UNSUPP = 10079, /* SSV alg mismatch */
  253. NFS4ERR_PNFS_NO_LAYOUT = 10080, /* direct I/O with no layout */
  254. NFS4ERR_NOT_ONLY_OP = 10081, /* bad compound */
  255. NFS4ERR_WRONG_CRED = 10082, /* permissions:state change */
  256. NFS4ERR_WRONG_TYPE = 10083, /* current operation mismatch */
  257. NFS4ERR_DIRDELEG_UNAVAIL = 10084, /* no directory delegation */
  258. NFS4ERR_REJECT_DELEG = 10085, /* on callback */
  259. NFS4ERR_RETURNCONFLICT = 10086, /* outstanding layoutreturn */
  260. NFS4ERR_DELEG_REVOKED = 10087, /* deleg./layout revoked */
  261. /* nfs42 */
  262. NFS4ERR_PARTNER_NOTSUPP = 10088,
  263. NFS4ERR_PARTNER_NO_AUTH = 10089,
  264. NFS4ERR_UNION_NOTSUPP = 10090,
  265. NFS4ERR_OFFLOAD_DENIED = 10091,
  266. NFS4ERR_WRONG_LFS = 10092,
  267. NFS4ERR_BADLABEL = 10093,
  268. NFS4ERR_OFFLOAD_NO_REQS = 10094,
  269. /* xattr (RFC8276) */
  270. NFS4ERR_NOXATTR = 10095,
  271. NFS4ERR_XATTR2BIG = 10096,
  272. };
  273. static inline bool seqid_mutating_err(u32 err)
  274. {
  275. /* See RFC 7530, section 9.1.7 */
  276. switch (err) {
  277. case NFS4ERR_STALE_CLIENTID:
  278. case NFS4ERR_STALE_STATEID:
  279. case NFS4ERR_BAD_STATEID:
  280. case NFS4ERR_BAD_SEQID:
  281. case NFS4ERR_BADXDR:
  282. case NFS4ERR_RESOURCE:
  283. case NFS4ERR_NOFILEHANDLE:
  284. case NFS4ERR_MOVED:
  285. return false;
  286. }
  287. return true;
  288. }
  289. /*
  290. * Note: NF4BAD is not actually part of the protocol; it is just used
  291. * internally by nfsd.
  292. */
  293. enum nfs_ftype4 {
  294. NF4BAD = 0,
  295. NF4REG = 1, /* Regular File */
  296. NF4DIR = 2, /* Directory */
  297. NF4BLK = 3, /* Special File - block device */
  298. NF4CHR = 4, /* Special File - character device */
  299. NF4LNK = 5, /* Symbolic Link */
  300. NF4SOCK = 6, /* Special File - socket */
  301. NF4FIFO = 7, /* Special File - fifo */
  302. NF4ATTRDIR = 8, /* Attribute Directory */
  303. NF4NAMEDATTR = 9 /* Named Attribute */
  304. };
  305. enum open_claim_type4 {
  306. NFS4_OPEN_CLAIM_NULL = 0,
  307. NFS4_OPEN_CLAIM_PREVIOUS = 1,
  308. NFS4_OPEN_CLAIM_DELEGATE_CUR = 2,
  309. NFS4_OPEN_CLAIM_DELEGATE_PREV = 3,
  310. NFS4_OPEN_CLAIM_FH = 4, /* 4.1 */
  311. NFS4_OPEN_CLAIM_DELEG_CUR_FH = 5, /* 4.1 */
  312. NFS4_OPEN_CLAIM_DELEG_PREV_FH = 6, /* 4.1 */
  313. };
  314. enum opentype4 {
  315. NFS4_OPEN_NOCREATE = 0,
  316. NFS4_OPEN_CREATE = 1
  317. };
  318. enum createmode4 {
  319. NFS4_CREATE_UNCHECKED = 0,
  320. NFS4_CREATE_GUARDED = 1,
  321. NFS4_CREATE_EXCLUSIVE = 2,
  322. /*
  323. * New to NFSv4.1. If session is persistent,
  324. * GUARDED4 MUST be used. Otherwise, use
  325. * EXCLUSIVE4_1 instead of EXCLUSIVE4.
  326. */
  327. NFS4_CREATE_EXCLUSIVE4_1 = 3
  328. };
  329. enum limit_by4 {
  330. NFS4_LIMIT_SIZE = 1,
  331. NFS4_LIMIT_BLOCKS = 2
  332. };
  333. enum open_delegation_type4 {
  334. NFS4_OPEN_DELEGATE_NONE = 0,
  335. NFS4_OPEN_DELEGATE_READ = 1,
  336. NFS4_OPEN_DELEGATE_WRITE = 2,
  337. NFS4_OPEN_DELEGATE_NONE_EXT = 3, /* 4.1 */
  338. };
  339. enum why_no_delegation4 { /* new to v4.1 */
  340. WND4_NOT_WANTED = 0,
  341. WND4_CONTENTION = 1,
  342. WND4_RESOURCE = 2,
  343. WND4_NOT_SUPP_FTYPE = 3,
  344. WND4_WRITE_DELEG_NOT_SUPP_FTYPE = 4,
  345. WND4_NOT_SUPP_UPGRADE = 5,
  346. WND4_NOT_SUPP_DOWNGRADE = 6,
  347. WND4_CANCELLED = 7,
  348. WND4_IS_DIR = 8,
  349. };
  350. enum lock_type4 {
  351. NFS4_UNLOCK_LT = 0,
  352. NFS4_READ_LT = 1,
  353. NFS4_WRITE_LT = 2,
  354. NFS4_READW_LT = 3,
  355. NFS4_WRITEW_LT = 4
  356. };
  357. enum change_attr_type4 {
  358. NFS4_CHANGE_TYPE_IS_MONOTONIC_INCR = 0,
  359. NFS4_CHANGE_TYPE_IS_VERSION_COUNTER = 1,
  360. NFS4_CHANGE_TYPE_IS_VERSION_COUNTER_NOPNFS = 2,
  361. NFS4_CHANGE_TYPE_IS_TIME_METADATA = 3,
  362. NFS4_CHANGE_TYPE_IS_UNDEFINED = 4
  363. };
  364. /* Mandatory Attributes */
  365. #define FATTR4_WORD0_SUPPORTED_ATTRS (1UL << 0)
  366. #define FATTR4_WORD0_TYPE (1UL << 1)
  367. #define FATTR4_WORD0_FH_EXPIRE_TYPE (1UL << 2)
  368. #define FATTR4_WORD0_CHANGE (1UL << 3)
  369. #define FATTR4_WORD0_SIZE (1UL << 4)
  370. #define FATTR4_WORD0_LINK_SUPPORT (1UL << 5)
  371. #define FATTR4_WORD0_SYMLINK_SUPPORT (1UL << 6)
  372. #define FATTR4_WORD0_NAMED_ATTR (1UL << 7)
  373. #define FATTR4_WORD0_FSID (1UL << 8)
  374. #define FATTR4_WORD0_UNIQUE_HANDLES (1UL << 9)
  375. #define FATTR4_WORD0_LEASE_TIME (1UL << 10)
  376. #define FATTR4_WORD0_RDATTR_ERROR (1UL << 11)
  377. /* Mandatory in NFSv4.1 */
  378. #define FATTR4_WORD2_SUPPATTR_EXCLCREAT (1UL << 11)
  379. /* Recommended Attributes */
  380. #define FATTR4_WORD0_ACL (1UL << 12)
  381. #define FATTR4_WORD0_ACLSUPPORT (1UL << 13)
  382. #define FATTR4_WORD0_ARCHIVE (1UL << 14)
  383. #define FATTR4_WORD0_CANSETTIME (1UL << 15)
  384. #define FATTR4_WORD0_CASE_INSENSITIVE (1UL << 16)
  385. #define FATTR4_WORD0_CASE_PRESERVING (1UL << 17)
  386. #define FATTR4_WORD0_CHOWN_RESTRICTED (1UL << 18)
  387. #define FATTR4_WORD0_FILEHANDLE (1UL << 19)
  388. #define FATTR4_WORD0_FILEID (1UL << 20)
  389. #define FATTR4_WORD0_FILES_AVAIL (1UL << 21)
  390. #define FATTR4_WORD0_FILES_FREE (1UL << 22)
  391. #define FATTR4_WORD0_FILES_TOTAL (1UL << 23)
  392. #define FATTR4_WORD0_FS_LOCATIONS (1UL << 24)
  393. #define FATTR4_WORD0_HIDDEN (1UL << 25)
  394. #define FATTR4_WORD0_HOMOGENEOUS (1UL << 26)
  395. #define FATTR4_WORD0_MAXFILESIZE (1UL << 27)
  396. #define FATTR4_WORD0_MAXLINK (1UL << 28)
  397. #define FATTR4_WORD0_MAXNAME (1UL << 29)
  398. #define FATTR4_WORD0_MAXREAD (1UL << 30)
  399. #define FATTR4_WORD0_MAXWRITE (1UL << 31)
  400. #define FATTR4_WORD1_MIMETYPE (1UL << 0)
  401. #define FATTR4_WORD1_MODE (1UL << 1)
  402. #define FATTR4_WORD1_NO_TRUNC (1UL << 2)
  403. #define FATTR4_WORD1_NUMLINKS (1UL << 3)
  404. #define FATTR4_WORD1_OWNER (1UL << 4)
  405. #define FATTR4_WORD1_OWNER_GROUP (1UL << 5)
  406. #define FATTR4_WORD1_QUOTA_HARD (1UL << 6)
  407. #define FATTR4_WORD1_QUOTA_SOFT (1UL << 7)
  408. #define FATTR4_WORD1_QUOTA_USED (1UL << 8)
  409. #define FATTR4_WORD1_RAWDEV (1UL << 9)
  410. #define FATTR4_WORD1_SPACE_AVAIL (1UL << 10)
  411. #define FATTR4_WORD1_SPACE_FREE (1UL << 11)
  412. #define FATTR4_WORD1_SPACE_TOTAL (1UL << 12)
  413. #define FATTR4_WORD1_SPACE_USED (1UL << 13)
  414. #define FATTR4_WORD1_SYSTEM (1UL << 14)
  415. #define FATTR4_WORD1_TIME_ACCESS (1UL << 15)
  416. #define FATTR4_WORD1_TIME_ACCESS_SET (1UL << 16)
  417. #define FATTR4_WORD1_TIME_BACKUP (1UL << 17)
  418. #define FATTR4_WORD1_TIME_CREATE (1UL << 18)
  419. #define FATTR4_WORD1_TIME_DELTA (1UL << 19)
  420. #define FATTR4_WORD1_TIME_METADATA (1UL << 20)
  421. #define FATTR4_WORD1_TIME_MODIFY (1UL << 21)
  422. #define FATTR4_WORD1_TIME_MODIFY_SET (1UL << 22)
  423. #define FATTR4_WORD1_MOUNTED_ON_FILEID (1UL << 23)
  424. #define FATTR4_WORD1_FS_LAYOUT_TYPES (1UL << 30)
  425. #define FATTR4_WORD2_LAYOUT_TYPES (1UL << 0)
  426. #define FATTR4_WORD2_LAYOUT_BLKSIZE (1UL << 1)
  427. #define FATTR4_WORD2_MDSTHRESHOLD (1UL << 4)
  428. #define FATTR4_WORD2_CLONE_BLKSIZE (1UL << 13)
  429. #define FATTR4_WORD2_CHANGE_ATTR_TYPE (1UL << 15)
  430. #define FATTR4_WORD2_SECURITY_LABEL (1UL << 16)
  431. #define FATTR4_WORD2_MODE_UMASK (1UL << 17)
  432. #define FATTR4_WORD2_XATTR_SUPPORT (1UL << 18)
  433. /* MDS threshold bitmap bits */
  434. #define THRESHOLD_RD (1UL << 0)
  435. #define THRESHOLD_WR (1UL << 1)
  436. #define THRESHOLD_RD_IO (1UL << 2)
  437. #define THRESHOLD_WR_IO (1UL << 3)
  438. #define NFSPROC4_NULL 0
  439. #define NFSPROC4_COMPOUND 1
  440. #define NFS4_VERSION 4
  441. #define NFS4_MINOR_VERSION 0
  442. #define NFS4_DEBUG 1
  443. /*
  444. * Index of predefined Linux client operations
  445. *
  446. * To ensure that /proc/net/rpc/nfs remains correctly ordered, please
  447. * append only to this enum when adding new client operations.
  448. */
  449. enum {
  450. NFSPROC4_CLNT_NULL = 0, /* Unused */
  451. NFSPROC4_CLNT_READ,
  452. NFSPROC4_CLNT_WRITE,
  453. NFSPROC4_CLNT_COMMIT,
  454. NFSPROC4_CLNT_OPEN,
  455. NFSPROC4_CLNT_OPEN_CONFIRM,
  456. NFSPROC4_CLNT_OPEN_NOATTR,
  457. NFSPROC4_CLNT_OPEN_DOWNGRADE,
  458. NFSPROC4_CLNT_CLOSE,
  459. NFSPROC4_CLNT_SETATTR,
  460. NFSPROC4_CLNT_FSINFO,
  461. NFSPROC4_CLNT_RENEW,
  462. NFSPROC4_CLNT_SETCLIENTID,
  463. NFSPROC4_CLNT_SETCLIENTID_CONFIRM,
  464. NFSPROC4_CLNT_LOCK,
  465. NFSPROC4_CLNT_LOCKT,
  466. NFSPROC4_CLNT_LOCKU,
  467. NFSPROC4_CLNT_ACCESS,
  468. NFSPROC4_CLNT_GETATTR,
  469. NFSPROC4_CLNT_LOOKUP,
  470. NFSPROC4_CLNT_LOOKUP_ROOT,
  471. NFSPROC4_CLNT_REMOVE,
  472. NFSPROC4_CLNT_RENAME,
  473. NFSPROC4_CLNT_LINK,
  474. NFSPROC4_CLNT_SYMLINK,
  475. NFSPROC4_CLNT_CREATE,
  476. NFSPROC4_CLNT_PATHCONF,
  477. NFSPROC4_CLNT_STATFS,
  478. NFSPROC4_CLNT_READLINK,
  479. NFSPROC4_CLNT_READDIR,
  480. NFSPROC4_CLNT_SERVER_CAPS,
  481. NFSPROC4_CLNT_DELEGRETURN,
  482. NFSPROC4_CLNT_GETACL,
  483. NFSPROC4_CLNT_SETACL,
  484. NFSPROC4_CLNT_FS_LOCATIONS,
  485. NFSPROC4_CLNT_RELEASE_LOCKOWNER,
  486. NFSPROC4_CLNT_SECINFO,
  487. NFSPROC4_CLNT_FSID_PRESENT,
  488. NFSPROC4_CLNT_EXCHANGE_ID,
  489. NFSPROC4_CLNT_CREATE_SESSION,
  490. NFSPROC4_CLNT_DESTROY_SESSION,
  491. NFSPROC4_CLNT_SEQUENCE,
  492. NFSPROC4_CLNT_GET_LEASE_TIME,
  493. NFSPROC4_CLNT_RECLAIM_COMPLETE,
  494. NFSPROC4_CLNT_LAYOUTGET,
  495. NFSPROC4_CLNT_GETDEVICEINFO,
  496. NFSPROC4_CLNT_LAYOUTCOMMIT,
  497. NFSPROC4_CLNT_LAYOUTRETURN,
  498. NFSPROC4_CLNT_SECINFO_NO_NAME,
  499. NFSPROC4_CLNT_TEST_STATEID,
  500. NFSPROC4_CLNT_FREE_STATEID,
  501. NFSPROC4_CLNT_GETDEVICELIST,
  502. NFSPROC4_CLNT_BIND_CONN_TO_SESSION,
  503. NFSPROC4_CLNT_DESTROY_CLIENTID,
  504. NFSPROC4_CLNT_SEEK,
  505. NFSPROC4_CLNT_ALLOCATE,
  506. NFSPROC4_CLNT_DEALLOCATE,
  507. NFSPROC4_CLNT_LAYOUTSTATS,
  508. NFSPROC4_CLNT_CLONE,
  509. NFSPROC4_CLNT_COPY,
  510. NFSPROC4_CLNT_OFFLOAD_CANCEL,
  511. NFSPROC4_CLNT_LOOKUPP,
  512. NFSPROC4_CLNT_LAYOUTERROR,
  513. NFSPROC4_CLNT_COPY_NOTIFY,
  514. NFSPROC4_CLNT_GETXATTR,
  515. NFSPROC4_CLNT_SETXATTR,
  516. NFSPROC4_CLNT_LISTXATTRS,
  517. NFSPROC4_CLNT_REMOVEXATTR,
  518. NFSPROC4_CLNT_READ_PLUS,
  519. };
  520. /* nfs41 types */
  521. struct nfs4_sessionid {
  522. unsigned char data[NFS4_MAX_SESSIONID_LEN];
  523. };
  524. /* Create Session Flags */
  525. #define SESSION4_PERSIST 0x001
  526. #define SESSION4_BACK_CHAN 0x002
  527. #define SESSION4_RDMA 0x004
  528. #define SESSION4_FLAG_MASK_A 0x007
  529. enum state_protect_how4 {
  530. SP4_NONE = 0,
  531. SP4_MACH_CRED = 1,
  532. SP4_SSV = 2
  533. };
  534. enum pnfs_layouttype {
  535. LAYOUT_NFSV4_1_FILES = 1,
  536. LAYOUT_OSD2_OBJECTS = 2,
  537. LAYOUT_BLOCK_VOLUME = 3,
  538. LAYOUT_FLEX_FILES = 4,
  539. LAYOUT_SCSI = 5,
  540. LAYOUT_TYPE_MAX
  541. };
  542. /* used for both layout return and recall */
  543. enum pnfs_layoutreturn_type {
  544. RETURN_FILE = 1,
  545. RETURN_FSID = 2,
  546. RETURN_ALL = 3
  547. };
  548. enum pnfs_iomode {
  549. IOMODE_READ = 1,
  550. IOMODE_RW = 2,
  551. IOMODE_ANY = 3,
  552. };
  553. enum pnfs_notify_deviceid_type4 {
  554. NOTIFY_DEVICEID4_CHANGE = 1 << 1,
  555. NOTIFY_DEVICEID4_DELETE = 1 << 2,
  556. };
  557. enum pnfs_block_volume_type {
  558. PNFS_BLOCK_VOLUME_SIMPLE = 0,
  559. PNFS_BLOCK_VOLUME_SLICE = 1,
  560. PNFS_BLOCK_VOLUME_CONCAT = 2,
  561. PNFS_BLOCK_VOLUME_STRIPE = 3,
  562. PNFS_BLOCK_VOLUME_SCSI = 4,
  563. };
  564. enum pnfs_block_extent_state {
  565. PNFS_BLOCK_READWRITE_DATA = 0,
  566. PNFS_BLOCK_READ_DATA = 1,
  567. PNFS_BLOCK_INVALID_DATA = 2,
  568. PNFS_BLOCK_NONE_DATA = 3,
  569. };
  570. /* on the wire size of a block layout extent */
  571. #define PNFS_BLOCK_EXTENT_SIZE \
  572. (7 * sizeof(__be32) + NFS4_DEVICEID4_SIZE)
  573. /* on the wire size of a scsi commit range */
  574. #define PNFS_SCSI_RANGE_SIZE \
  575. (4 * sizeof(__be32))
  576. enum scsi_code_set {
  577. PS_CODE_SET_BINARY = 1,
  578. PS_CODE_SET_ASCII = 2,
  579. PS_CODE_SET_UTF8 = 3
  580. };
  581. enum scsi_designator_type {
  582. PS_DESIGNATOR_T10 = 1,
  583. PS_DESIGNATOR_EUI64 = 2,
  584. PS_DESIGNATOR_NAA = 3,
  585. PS_DESIGNATOR_NAME = 8
  586. };
  587. #define NFL4_UFLG_MASK 0x0000003F
  588. #define NFL4_UFLG_DENSE 0x00000001
  589. #define NFL4_UFLG_COMMIT_THRU_MDS 0x00000002
  590. #define NFL4_UFLG_STRIPE_UNIT_SIZE_MASK 0xFFFFFFC0
  591. /* Encoded in the loh_body field of type layouthint4 */
  592. enum filelayout_hint_care4 {
  593. NFLH4_CARE_DENSE = NFL4_UFLG_DENSE,
  594. NFLH4_CARE_COMMIT_THRU_MDS = NFL4_UFLG_COMMIT_THRU_MDS,
  595. NFLH4_CARE_STRIPE_UNIT_SIZE = 0x00000040,
  596. NFLH4_CARE_STRIPE_COUNT = 0x00000080
  597. };
  598. #define NFS4_DEVICEID4_SIZE 16
  599. struct nfs4_deviceid {
  600. char data[NFS4_DEVICEID4_SIZE];
  601. };
  602. enum data_content4 {
  603. NFS4_CONTENT_DATA = 0,
  604. NFS4_CONTENT_HOLE = 1,
  605. };
  606. enum pnfs_update_layout_reason {
  607. PNFS_UPDATE_LAYOUT_UNKNOWN = 0,
  608. PNFS_UPDATE_LAYOUT_NO_PNFS,
  609. PNFS_UPDATE_LAYOUT_RD_ZEROLEN,
  610. PNFS_UPDATE_LAYOUT_MDSTHRESH,
  611. PNFS_UPDATE_LAYOUT_NOMEM,
  612. PNFS_UPDATE_LAYOUT_BULK_RECALL,
  613. PNFS_UPDATE_LAYOUT_IO_TEST_FAIL,
  614. PNFS_UPDATE_LAYOUT_FOUND_CACHED,
  615. PNFS_UPDATE_LAYOUT_RETURN,
  616. PNFS_UPDATE_LAYOUT_RETRY,
  617. PNFS_UPDATE_LAYOUT_BLOCKED,
  618. PNFS_UPDATE_LAYOUT_INVALID_OPEN,
  619. PNFS_UPDATE_LAYOUT_SEND_LAYOUTGET,
  620. PNFS_UPDATE_LAYOUT_EXIT,
  621. };
  622. #define NFS4_OP_MAP_NUM_LONGS \
  623. DIV_ROUND_UP(LAST_NFS4_OP, 8 * sizeof(unsigned long))
  624. #define NFS4_OP_MAP_NUM_WORDS \
  625. (NFS4_OP_MAP_NUM_LONGS * sizeof(unsigned long) / sizeof(u32))
  626. struct nfs4_op_map {
  627. union {
  628. unsigned long longs[NFS4_OP_MAP_NUM_LONGS];
  629. u32 words[NFS4_OP_MAP_NUM_WORDS];
  630. } u;
  631. };
  632. struct nfs42_netaddr {
  633. char netid[RPCBIND_MAXNETIDLEN];
  634. char addr[RPCBIND_MAXUADDRLEN + 1];
  635. u32 netid_len;
  636. u32 addr_len;
  637. };
  638. enum netloc_type4 {
  639. NL4_NAME = 1,
  640. NL4_URL = 2,
  641. NL4_NETADDR = 3,
  642. };
  643. struct nl4_server {
  644. enum netloc_type4 nl4_type;
  645. union {
  646. struct { /* NL4_NAME, NL4_URL */
  647. int nl4_str_sz;
  648. char nl4_str[NFS4_OPAQUE_LIMIT + 1];
  649. };
  650. struct nfs42_netaddr nl4_addr; /* NL4_NETADDR */
  651. } u;
  652. };
  653. /*
  654. * Options for setxattr. These match the flags for setxattr(2).
  655. */
  656. enum nfs4_setxattr_options {
  657. SETXATTR4_EITHER = 0,
  658. SETXATTR4_CREATE = 1,
  659. SETXATTR4_REPLACE = 2,
  660. };
  661. #endif