linux_dsm_epyc7002/include/uapi/linux/nfsd/export.h
Christoph Hellwig f3f03330de nfsd: require an explicit option to enable pNFS
Turns out sending out layouts to any client is a bad idea if they
can't get at the storage device, so require explicit admin action
to enable pNFS.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-30 16:05:26 -04:00

62 lines
1.9 KiB
C

/*
* include/linux/nfsd/export.h
*
* Public declarations for NFS exports. The definitions for the
* syscall interface are in nfsctl.h
*
* Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
*/
#ifndef _UAPINFSD_EXPORT_H
#define _UAPINFSD_EXPORT_H
# include <linux/types.h>
/*
* Important limits for the exports stuff.
*/
#define NFSCLNT_IDMAX 1024
#define NFSCLNT_ADDRMAX 16
#define NFSCLNT_KEYMAX 32
/*
* Export flags.
*/
#define NFSEXP_READONLY 0x0001
#define NFSEXP_INSECURE_PORT 0x0002
#define NFSEXP_ROOTSQUASH 0x0004
#define NFSEXP_ALLSQUASH 0x0008
#define NFSEXP_ASYNC 0x0010
#define NFSEXP_GATHERED_WRITES 0x0020
#define NFSEXP_NOREADDIRPLUS 0x0040
/* 80 100 currently unused */
#define NFSEXP_NOHIDE 0x0200
#define NFSEXP_NOSUBTREECHECK 0x0400
#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */
#define NFSEXP_MSNFS 0x1000 /* do silly things that MS clients expect; no longer supported */
#define NFSEXP_FSID 0x2000
#define NFSEXP_CROSSMOUNT 0x4000
#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
/*
* The NFSEXP_V4ROOT flag causes the kernel to give access only to NFSv4
* clients, and only to the single directory that is the root of the
* export; further lookup and readdir operations are treated as if every
* subdirectory was a mountpoint, and ignored if they are not themselves
* exported. This is used by nfsd and mountd to construct the NFSv4
* pseudofilesystem, which provides access only to paths leading to each
* exported filesystem.
*/
#define NFSEXP_V4ROOT 0x10000
#define NFSEXP_PNFS 0x20000
/* All flags that we claim to support. (Note we don't support NOACL.) */
#define NFSEXP_ALLFLAGS 0x3FE7F
/* The flags that may vary depending on security flavor: */
#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \
| NFSEXP_ALLSQUASH \
| NFSEXP_INSECURE_PORT)
#endif /* _UAPINFSD_EXPORT_H */