nfs.h
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上传日期:2009-04-28
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文件大小:5k
- /*
- * NFS protocol definitions
- *
- * This file contains constants mostly for Version 2 of the protocol,
- * but also has a couple of NFSv3 bits in (notably the error codes).
- */
- #ifndef _LINUX_NFS_H
- #define _LINUX_NFS_H
- #include <linux/sunrpc/msg_prot.h>
- #include <linux/string.h>
- #define NFS_PROGRAM 100003
- #define NFS_PORT 2049
- #define NFS_MAXDATA 8192
- #define NFS_MAXPATHLEN 1024
- #define NFS_MAXNAMLEN 255
- #define NFS_MAXGROUPS 16
- #define NFS_FHSIZE 32
- #define NFS_COOKIESIZE 4
- #define NFS_FIFO_DEV (-1)
- #define NFSMODE_FMT 0170000
- #define NFSMODE_DIR 0040000
- #define NFSMODE_CHR 0020000
- #define NFSMODE_BLK 0060000
- #define NFSMODE_REG 0100000
- #define NFSMODE_LNK 0120000
- #define NFSMODE_SOCK 0140000
- #define NFSMODE_FIFO 0010000
- #define NFS_MNT_PROGRAM 100005
- #define NFS_MNT_PORT 627
- /*
- * NFS stats. The good thing with these values is that NFSv3 errors are
- * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
- * no-one uses anyway), so we can happily mix code as long as we make sure
- * no NFSv3 errors are returned to NFSv2 clients.
- * Error codes that have a `--' in the v2 column are not part of the
- * standard, but seem to be widely used nevertheless.
- */
- enum nfs_stat {
- NFS_OK = 0, /* v2 v3 v4 */
- NFSERR_PERM = 1, /* v2 v3 v4 */
- NFSERR_NOENT = 2, /* v2 v3 v4 */
- NFSERR_IO = 5, /* v2 v3 v4 */
- NFSERR_NXIO = 6, /* v2 v3 v4 */
- NFSERR_EAGAIN = 11, /* v2 v3 */
- NFSERR_ACCES = 13, /* v2 v3 v4 */
- NFSERR_EXIST = 17, /* v2 v3 v4 */
- NFSERR_XDEV = 18, /* v3 v4 */
- NFSERR_NODEV = 19, /* v2 v3 v4 */
- NFSERR_NOTDIR = 20, /* v2 v3 v4 */
- NFSERR_ISDIR = 21, /* v2 v3 v4 */
- NFSERR_INVAL = 22, /* v2 v3 v4 */
- NFSERR_FBIG = 27, /* v2 v3 v4 */
- NFSERR_NOSPC = 28, /* v2 v3 v4 */
- NFSERR_ROFS = 30, /* v2 v3 v4 */
- NFSERR_MLINK = 31, /* v3 v4 */
- NFSERR_OPNOTSUPP = 45, /* v2 v3 */
- NFSERR_NAMETOOLONG = 63, /* v2 v3 v4 */
- NFSERR_NOTEMPTY = 66, /* v2 v3 v4 */
- NFSERR_DQUOT = 69, /* v2 v3 v4 */
- NFSERR_STALE = 70, /* v2 v3 v4 */
- NFSERR_REMOTE = 71, /* v2 v3 */
- NFSERR_WFLUSH = 99, /* v2 */
- NFSERR_BADHANDLE = 10001, /* v3 v4 */
- NFSERR_NOT_SYNC = 10002, /* v3 */
- NFSERR_BAD_COOKIE = 10003, /* v3 v4 */
- NFSERR_NOTSUPP = 10004, /* v3 v4 */
- NFSERR_TOOSMALL = 10005, /* v3 v4 */
- NFSERR_SERVERFAULT = 10006, /* v3 v4 */
- NFSERR_BADTYPE = 10007, /* v3 v4 */
- NFSERR_JUKEBOX = 10008, /* v3 v4 */
- NFSERR_SAME = 10009, /* v4 */
- NFSERR_DENIED = 10010, /* v4 */
- NFSERR_EXPIRED = 10011, /* v4 */
- NFSERR_LOCKED = 10012, /* v4 */
- NFSERR_GRACE = 10013, /* v4 */
- NFSERR_FHEXPIRED = 10014, /* v4 */
- NFSERR_SHARE_DENIED = 10015, /* v4 */
- NFSERR_WRONGSEC = 10016, /* v4 */
- NFSERR_CLID_INUSE = 10017, /* v4 */
- NFSERR_RESOURCE = 10018, /* v4 */
- NFSERR_MOVED = 10019, /* v4 */
- NFSERR_NOFILEHANDLE = 10020, /* v4 */
- NFSERR_MINOR_VERS_MISMATCH = 10021, /* v4 */
- NFSERR_STALE_CLIENTID = 10022, /* v4 */
- NFSERR_STALE_STATEID = 10023, /* v4 */
- NFSERR_OLD_STATEID = 10024, /* v4 */
- NFSERR_BAD_STATEID = 10025, /* v4 */
- NFSERR_BAD_SEQID = 10026, /* v4 */
- NFSERR_NOT_SAME = 10027, /* v4 */
- NFSERR_LOCK_RANGE = 10028, /* v4 */
- NFSERR_SYMLINK = 10029, /* v4 */
- NFSERR_RESTOREFH = 10030, /* v4 */
- NFSERR_LEASE_MOVED = 10031, /* v4 */
- NFSERR_ATTRNOTSUPP = 10032, /* v4 */
- NFSERR_NO_GRACE = 10033, /* v4 */
- NFSERR_RECLAIM_BAD = 10034, /* v4 */
- NFSERR_RECLAIM_CONFLICT = 10035,/* v4 */
- NFSERR_BAD_XDR = 10036, /* v4 */
- NFSERR_LOCKS_HELD = 10037, /* v4 */
- NFSERR_OPENMODE = 10038, /* v4 */
- NFSERR_BADOWNER = 10039, /* v4 */
- NFSERR_BADCHAR = 10040, /* v4 */
- NFSERR_BADNAME = 10041, /* v4 */
- NFSERR_BAD_RANGE = 10042, /* v4 */
- NFSERR_LOCK_NOTSUPP = 10043, /* v4 */
- NFSERR_OP_ILLEGAL = 10044, /* v4 */
- NFSERR_DEADLOCK = 10045, /* v4 */
- NFSERR_FILE_OPEN = 10046, /* v4 */
- NFSERR_ADMIN_REVOKED = 10047, /* v4 */
- NFSERR_CB_PATH_DOWN = 10048, /* v4 */
- NFSERR_REPLAY_ME = 10049 /* v4 */
- };
- /* NFSv2 file types - beware, these are not the same in NFSv3 */
- enum nfs_ftype {
- NFNON = 0,
- NFREG = 1,
- NFDIR = 2,
- NFBLK = 3,
- NFCHR = 4,
- NFLNK = 5,
- NFSOCK = 6,
- NFBAD = 7,
- NFFIFO = 8
- };
- #if defined(__KERNEL__)
- /*
- * This is the kernel NFS client file handle representation
- */
- #define NFS_MAXFHSIZE 128
- struct nfs_fh {
- unsigned short size;
- unsigned char data[NFS_MAXFHSIZE];
- };
- /*
- * Returns a zero iff the size and data fields match.
- * Checks only "size" bytes in the data field.
- */
- static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b)
- {
- return a->size != b->size || memcmp(a->data, b->data, a->size) != 0;
- }
- static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source)
- {
- target->size = source->size;
- memcpy(target->data, source->data, source->size);
- }
- /*
- * This is really a general kernel constant, but since nothing like
- * this is defined in the kernel headers, I have to do it here.
- */
- #define NFS_OFFSET_MAX ((__s64)((~(__u64)0) >> 1))
- enum nfs3_stable_how {
- NFS_UNSTABLE = 0,
- NFS_DATA_SYNC = 1,
- NFS_FILE_SYNC = 2
- };
- #endif /* __KERNEL__ */
- #endif /* _LINUX_NFS_H */