forked from luck/tmp_suning_uos_patched
0157d021d2
v2: 1) "Over-put" of PipeFS mount point fixed. Fix is ugly, but allows to bisect the patch set. And it will be removed later in the series. This patch makes RPC clients PipeFs dentries allocations in it's owner network namespace context. RPC client pipefs dentries creation logic has been changed: 1) Pipefs dentries creation by sb was moved to separated function, which will be used for handling PipeFS mount notification. 2) Initial value of RPC client PipeFS dir dentry is set no NULL now. RPC client pipefs dentries cleanup logic has been changed: 1) Cleanup is done now in separated rpc_remove_pipedir() function, which takes care about pipefs superblock locking. Also this patch removes slashes from cb_program.pipe_dir_name and from NFS_PIPE_DIRNAME to make rpc_d_lookup_sb() work. This doesn't affect vfs_path_lookup() results in nfs4blocklayout_init() since this slash is cutted off anyway in link_path_walk(). Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
174 lines
5.2 KiB
C
174 lines
5.2 KiB
C
/*
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* NFS protocol definitions
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*
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* This file contains constants mostly for Version 2 of the protocol,
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* but also has a couple of NFSv3 bits in (notably the error codes).
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*/
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#ifndef _LINUX_NFS_H
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#define _LINUX_NFS_H
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#define NFS_PROGRAM 100003
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#define NFS_PORT 2049
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#define NFS_MAXDATA 8192
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#define NFS_MAXPATHLEN 1024
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#define NFS_MAXNAMLEN 255
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#define NFS_MAXGROUPS 16
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#define NFS_FHSIZE 32
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#define NFS_COOKIESIZE 4
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#define NFS_FIFO_DEV (-1)
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#define NFSMODE_FMT 0170000
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#define NFSMODE_DIR 0040000
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#define NFSMODE_CHR 0020000
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#define NFSMODE_BLK 0060000
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#define NFSMODE_REG 0100000
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#define NFSMODE_LNK 0120000
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#define NFSMODE_SOCK 0140000
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#define NFSMODE_FIFO 0010000
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#define NFS_MNT_PROGRAM 100005
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#define NFS_MNT_VERSION 1
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#define NFS_MNT3_VERSION 3
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#define NFS_PIPE_DIRNAME "nfs"
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/*
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* NFS stats. The good thing with these values is that NFSv3 errors are
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* a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which
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* no-one uses anyway), so we can happily mix code as long as we make sure
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* no NFSv3 errors are returned to NFSv2 clients.
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* Error codes that have a `--' in the v2 column are not part of the
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* standard, but seem to be widely used nevertheless.
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*/
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enum nfs_stat {
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NFS_OK = 0, /* v2 v3 v4 */
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NFSERR_PERM = 1, /* v2 v3 v4 */
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NFSERR_NOENT = 2, /* v2 v3 v4 */
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NFSERR_IO = 5, /* v2 v3 v4 */
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NFSERR_NXIO = 6, /* v2 v3 v4 */
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NFSERR_EAGAIN = 11, /* v2 v3 */
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NFSERR_ACCES = 13, /* v2 v3 v4 */
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NFSERR_EXIST = 17, /* v2 v3 v4 */
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NFSERR_XDEV = 18, /* v3 v4 */
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NFSERR_NODEV = 19, /* v2 v3 v4 */
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NFSERR_NOTDIR = 20, /* v2 v3 v4 */
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NFSERR_ISDIR = 21, /* v2 v3 v4 */
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NFSERR_INVAL = 22, /* v2 v3 v4 */
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NFSERR_FBIG = 27, /* v2 v3 v4 */
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NFSERR_NOSPC = 28, /* v2 v3 v4 */
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NFSERR_ROFS = 30, /* v2 v3 v4 */
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NFSERR_MLINK = 31, /* v3 v4 */
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NFSERR_OPNOTSUPP = 45, /* v2 v3 */
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NFSERR_NAMETOOLONG = 63, /* v2 v3 v4 */
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NFSERR_NOTEMPTY = 66, /* v2 v3 v4 */
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NFSERR_DQUOT = 69, /* v2 v3 v4 */
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NFSERR_STALE = 70, /* v2 v3 v4 */
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NFSERR_REMOTE = 71, /* v2 v3 */
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NFSERR_WFLUSH = 99, /* v2 */
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NFSERR_BADHANDLE = 10001, /* v3 v4 */
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NFSERR_NOT_SYNC = 10002, /* v3 */
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NFSERR_BAD_COOKIE = 10003, /* v3 v4 */
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NFSERR_NOTSUPP = 10004, /* v3 v4 */
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NFSERR_TOOSMALL = 10005, /* v3 v4 */
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NFSERR_SERVERFAULT = 10006, /* v3 v4 */
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NFSERR_BADTYPE = 10007, /* v3 v4 */
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NFSERR_JUKEBOX = 10008, /* v3 v4 */
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NFSERR_SAME = 10009, /* v4 */
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NFSERR_DENIED = 10010, /* v4 */
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NFSERR_EXPIRED = 10011, /* v4 */
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NFSERR_LOCKED = 10012, /* v4 */
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NFSERR_GRACE = 10013, /* v4 */
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NFSERR_FHEXPIRED = 10014, /* v4 */
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NFSERR_SHARE_DENIED = 10015, /* v4 */
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NFSERR_WRONGSEC = 10016, /* v4 */
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NFSERR_CLID_INUSE = 10017, /* v4 */
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NFSERR_RESOURCE = 10018, /* v4 */
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NFSERR_MOVED = 10019, /* v4 */
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NFSERR_NOFILEHANDLE = 10020, /* v4 */
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NFSERR_MINOR_VERS_MISMATCH = 10021, /* v4 */
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NFSERR_STALE_CLIENTID = 10022, /* v4 */
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NFSERR_STALE_STATEID = 10023, /* v4 */
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NFSERR_OLD_STATEID = 10024, /* v4 */
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NFSERR_BAD_STATEID = 10025, /* v4 */
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NFSERR_BAD_SEQID = 10026, /* v4 */
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NFSERR_NOT_SAME = 10027, /* v4 */
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NFSERR_LOCK_RANGE = 10028, /* v4 */
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NFSERR_SYMLINK = 10029, /* v4 */
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NFSERR_RESTOREFH = 10030, /* v4 */
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NFSERR_LEASE_MOVED = 10031, /* v4 */
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NFSERR_ATTRNOTSUPP = 10032, /* v4 */
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NFSERR_NO_GRACE = 10033, /* v4 */
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NFSERR_RECLAIM_BAD = 10034, /* v4 */
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NFSERR_RECLAIM_CONFLICT = 10035,/* v4 */
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NFSERR_BAD_XDR = 10036, /* v4 */
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NFSERR_LOCKS_HELD = 10037, /* v4 */
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NFSERR_OPENMODE = 10038, /* v4 */
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NFSERR_BADOWNER = 10039, /* v4 */
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NFSERR_BADCHAR = 10040, /* v4 */
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NFSERR_BADNAME = 10041, /* v4 */
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NFSERR_BAD_RANGE = 10042, /* v4 */
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NFSERR_LOCK_NOTSUPP = 10043, /* v4 */
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NFSERR_OP_ILLEGAL = 10044, /* v4 */
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NFSERR_DEADLOCK = 10045, /* v4 */
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NFSERR_FILE_OPEN = 10046, /* v4 */
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NFSERR_ADMIN_REVOKED = 10047, /* v4 */
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NFSERR_CB_PATH_DOWN = 10048, /* v4 */
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};
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/* NFSv2 file types - beware, these are not the same in NFSv3 */
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enum nfs_ftype {
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NFNON = 0,
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NFREG = 1,
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NFDIR = 2,
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NFBLK = 3,
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NFCHR = 4,
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NFLNK = 5,
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NFSOCK = 6,
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NFBAD = 7,
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NFFIFO = 8
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};
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#ifdef __KERNEL__
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#include <linux/sunrpc/msg_prot.h>
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#include <linux/string.h>
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/*
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* This is the kernel NFS client file handle representation
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*/
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#define NFS_MAXFHSIZE 128
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struct nfs_fh {
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unsigned short size;
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unsigned char data[NFS_MAXFHSIZE];
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};
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/*
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* Returns a zero iff the size and data fields match.
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* Checks only "size" bytes in the data field.
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*/
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static inline int nfs_compare_fh(const struct nfs_fh *a, const struct nfs_fh *b)
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{
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return a->size != b->size || memcmp(a->data, b->data, a->size) != 0;
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}
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static inline void nfs_copy_fh(struct nfs_fh *target, const struct nfs_fh *source)
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{
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target->size = source->size;
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memcpy(target->data, source->data, source->size);
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}
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/*
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* This is really a general kernel constant, but since nothing like
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* this is defined in the kernel headers, I have to do it here.
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*/
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#define NFS_OFFSET_MAX ((__s64)((~(__u64)0) >> 1))
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enum nfs3_stable_how {
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NFS_UNSTABLE = 0,
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NFS_DATA_SYNC = 1,
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NFS_FILE_SYNC = 2
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};
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#endif /* __KERNEL__ */
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#endif /* _LINUX_NFS_H */
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