| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * 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. |
| * |
| * Please update the expflags[] array in fs/nfsd/export.c when adding |
| * a new flag. |
| */ |
| #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 |
| #define NFSEXP_SECURITY_LABEL 0x0080 |
| /* 0x100 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 0x3FEFF |
| |
| /* 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 */ |
