nfs.h

  1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2/*
  3 * NFS protocol definitions
  4 *
  5 * This file contains constants mostly for Version 2 of the protocol,
  6 * but also has a couple of NFSv3 bits in (notably the error codes).
  7 */
  8#ifndef _UAPI_LINUX_NFS_H
  9#define _UAPI_LINUX_NFS_H
 10
 11#include <linux/types.h>
 12
 13#define NFS_PROGRAM	100003
 14#define NFS_PORT	2049
 15#define NFS_RDMA_PORT	20049
 16#define NFS_MAXDATA	8192
 17#define NFS_MAXPATHLEN	1024
 18#define NFS_MAXNAMLEN	255
 19#define NFS_MAXGROUPS	16
 20#define NFS_FHSIZE	32
 21#define NFS_COOKIESIZE	4
 22#define NFS_FIFO_DEV	(-1)
 23#define NFSMODE_FMT	0170000
 24#define NFSMODE_DIR	0040000
 25#define NFSMODE_CHR	0020000
 26#define NFSMODE_BLK	0060000
 27#define NFSMODE_REG	0100000
 28#define NFSMODE_LNK	0120000
 29#define NFSMODE_SOCK	0140000
 30#define NFSMODE_FIFO	0010000
 31
 32#define NFS_MNT_PROGRAM		100005
 33#define NFS_MNT_VERSION		1
 34#define NFS_MNT3_VERSION	3
 35
 36#define NFS_PIPE_DIRNAME "nfs"
 37
 38/*
 39 * NFS stats. The good thing with these values is that NFSv3 errors are
 40 * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
 41 * no-one uses anyway), so we can happily mix code as long as we make sure
 42 * no NFSv3 errors are returned to NFSv2 clients.
 43 * Error codes that have a `--' in the v2 column are not part of the
 44 * standard, but seem to be widely used nevertheless.
 45 */
 46 enum nfs_stat {
 47	NFS_OK = 0,			/* v2 v3 v4 */
 48	NFSERR_PERM = 1,		/* v2 v3 v4 */
 49	NFSERR_NOENT = 2,		/* v2 v3 v4 */
 50	NFSERR_IO = 5,			/* v2 v3 v4 */
 51	NFSERR_NXIO = 6,		/* v2 v3 v4 */
 52	NFSERR_ACCES = 13,		/* v2 v3 v4 */
 53	NFSERR_EXIST = 17,		/* v2 v3 v4 */
 54	NFSERR_XDEV = 18,		/*    v3 v4 */
 55	NFSERR_NODEV = 19,		/* v2 v3 v4 */
 56	NFSERR_NOTDIR = 20,		/* v2 v3 v4 */
 57	NFSERR_ISDIR = 21,		/* v2 v3 v4 */
 58	NFSERR_INVAL = 22,		/*    v3 v4 */
 59	NFSERR_FBIG = 27,		/* v2 v3 v4 */
 60	NFSERR_NOSPC = 28,		/* v2 v3 v4 */
 61	NFSERR_ROFS = 30,		/* v2 v3 v4 */
 62	NFSERR_MLINK = 31,		/*    v3 v4 */
 63	NFSERR_NAMETOOLONG = 63,	/* v2 v3 v4 */
 64	NFSERR_NOTEMPTY = 66,		/* v2 v3 v4 */
 65	NFSERR_DQUOT = 69,		/* v2 v3 v4 */
 66	NFSERR_STALE = 70,		/* v2 v3 v4 */
 67	NFSERR_REMOTE = 71,		/* v2 v3 */
 68	NFSERR_WFLUSH = 99,		/* v2    */
 69	NFSERR_BADHANDLE = 10001,	/*    v3 v4 */
 70	NFSERR_NOT_SYNC = 10002,	/*    v3 */
 71	NFSERR_BAD_COOKIE = 10003,	/*    v3 v4 */
 72	NFSERR_NOTSUPP = 10004,		/*    v3 v4 */
 73	NFSERR_TOOSMALL = 10005,	/*    v3 v4 */
 74	NFSERR_SERVERFAULT = 10006,	/*    v3 v4 */
 75	NFSERR_BADTYPE = 10007,		/*    v3 v4 */
 76	NFSERR_JUKEBOX = 10008,		/*    v3 v4 */
 77	NFSERR_SAME = 10009,		/*       v4 */
 78	NFSERR_DENIED = 10010,		/*       v4 */
 79	NFSERR_EXPIRED = 10011,		/*       v4 */
 80	NFSERR_LOCKED = 10012,		/*       v4 */
 81	NFSERR_GRACE = 10013,		/*       v4 */
 82	NFSERR_FHEXPIRED = 10014,	/*       v4 */
 83	NFSERR_SHARE_DENIED = 10015,	/*       v4 */
 84	NFSERR_WRONGSEC = 10016,	/*       v4 */
 85	NFSERR_CLID_INUSE = 10017,	/*       v4 */
 86	NFSERR_RESOURCE = 10018,	/*       v4 */
 87	NFSERR_MOVED = 10019,		/*       v4 */
 88	NFSERR_NOFILEHANDLE = 10020,	/*       v4 */
 89	NFSERR_MINOR_VERS_MISMATCH = 10021,   /* v4 */
 90	NFSERR_STALE_CLIENTID = 10022,	/*       v4 */
 91	NFSERR_STALE_STATEID = 10023,   /*       v4 */
 92	NFSERR_OLD_STATEID = 10024,     /*       v4 */
 93	NFSERR_BAD_STATEID = 10025,     /*       v4 */  
 94	NFSERR_BAD_SEQID = 10026,	/*       v4 */
 95	NFSERR_NOT_SAME = 10027,	/*       v4 */
 96	NFSERR_LOCK_RANGE = 10028,	/*       v4 */
 97	NFSERR_SYMLINK = 10029,		/*       v4 */
 98	NFSERR_RESTOREFH = 10030,	/*       v4 */
 99	NFSERR_LEASE_MOVED = 10031,	/*       v4 */
100	NFSERR_ATTRNOTSUPP = 10032,	/*       v4 */
101	NFSERR_NO_GRACE = 10033,	/*       v4 */
102	NFSERR_RECLAIM_BAD = 10034,	/*       v4 */
103	NFSERR_RECLAIM_CONFLICT = 10035,/*       v4 */
104	NFSERR_BAD_XDR = 10036,		/*       v4 */
105	NFSERR_LOCKS_HELD = 10037,	/*       v4 */
106	NFSERR_OPENMODE = 10038,       /*       v4 */
107	NFSERR_BADOWNER = 10039,       /*       v4 */
108	NFSERR_BADCHAR = 10040,        /*       v4 */
109	NFSERR_BADNAME = 10041,        /*       v4 */
110	NFSERR_BAD_RANGE = 10042,      /*       v4 */
111	NFSERR_LOCK_NOTSUPP = 10043,   /*       v4 */
112	NFSERR_OP_ILLEGAL = 10044,     /*       v4 */
113	NFSERR_DEADLOCK = 10045,       /*       v4 */
114	NFSERR_FILE_OPEN = 10046,      /*       v4 */
115	NFSERR_ADMIN_REVOKED = 10047,  /*       v4 */
116	NFSERR_CB_PATH_DOWN = 10048,   /*       v4 */
117};
118
119/* NFSv2 file types - beware, these are not the same in NFSv3 */
120
121enum nfs_ftype {
122	NFNON = 0,
123	NFREG = 1,
124	NFDIR = 2,
125	NFBLK = 3,
126	NFCHR = 4,
127	NFLNK = 5,
128	NFSOCK = 6,
129	NFBAD = 7,
130	NFFIFO = 8
131};
132
133#endif /* _UAPI_LINUX_NFS_H */