nfs.h
上传用户:lgb322
上传日期:2013-02-24
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文件大小:3k
- /*
- * 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>
- #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 */
- NFSERR_PERM = 1, /* v2 v3 */
- NFSERR_NOENT = 2, /* v2 v3 */
- NFSERR_IO = 5, /* v2 v3 */
- NFSERR_NXIO = 6, /* v2 v3 */
- NFSERR_EAGAIN = 11, /* v2 v3 */
- NFSERR_ACCES = 13, /* v2 v3 */
- NFSERR_EXIST = 17, /* v2 v3 */
- NFSERR_XDEV = 18, /* v3 */
- NFSERR_NODEV = 19, /* v2 v3 */
- NFSERR_NOTDIR = 20, /* v2 v3 */
- NFSERR_ISDIR = 21, /* v2 v3 */
- NFSERR_INVAL = 22, /* v2 v3 that Sun forgot */
- NFSERR_FBIG = 27, /* v2 v3 */
- NFSERR_NOSPC = 28, /* v2 v3 */
- NFSERR_ROFS = 30, /* v2 v3 */
- NFSERR_MLINK = 31, /* v3 */
- NFSERR_OPNOTSUPP = 45, /* v2 v3 */
- NFSERR_NAMETOOLONG = 63, /* v2 v3 */
- NFSERR_NOTEMPTY = 66, /* v2 v3 */
- NFSERR_DQUOT = 69, /* v2 v3 */
- NFSERR_STALE = 70, /* v2 v3 */
- NFSERR_REMOTE = 71, /* v2 v3 */
- NFSERR_WFLUSH = 99, /* v2 */
- NFSERR_BADHANDLE = 10001, /* v3 */
- NFSERR_NOT_SYNC = 10002, /* v3 */
- NFSERR_BAD_COOKIE = 10003, /* v3 */
- NFSERR_NOTSUPP = 10004, /* v3 */
- NFSERR_TOOSMALL = 10005, /* v3 */
- NFSERR_SERVERFAULT = 10006, /* v3 */
- NFSERR_BADTYPE = 10007, /* v3 */
- NFSERR_JUKEBOX = 10008 /* v3 */
- };
-
- /* 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 64
- struct nfs_fh {
- unsigned short size;
- unsigned char data[NFS_MAXFHSIZE];
- };
- /*
- * 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 */