1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _LINUX_NFS_MOUNT_H 3#define _LINUX_NFS_MOUNT_H 4 5/* 6 * linux/include/linux/nfs_mount.h 7 * 8 * Copyright (C) 1992 Rick Sladkey 9 * 10 * structure passed from user-space to kernel-space during an nfs mount 11 */ 12#include <linux/in.h> 13#include <linux/nfs.h> 14#include <linux/nfs2.h> 15#include <linux/nfs3.h> 16 17/* 18 * WARNING! Do not delete or change the order of these fields. If 19 * a new field is required then add it to the end. The version field 20 * tracks which fields are present. This will ensure some measure of 21 * mount-to-kernel version compatibility. Some of these aren't used yet 22 * but here they are anyway. 23 */ 24#define NFS_MOUNT_VERSION 6 25#define NFS_MAX_CONTEXT_LEN 256 26 27struct nfs_mount_data { 28 int version; /* 1 */ 29 int fd; /* 1 */ 30 struct nfs2_fh old_root; /* 1 */ 31 int flags; /* 1 */ 32 int rsize; /* 1 */ 33 int wsize; /* 1 */ 34 int timeo; /* 1 */ 35 int retrans; /* 1 */ 36 int acregmin; /* 1 */ 37 int acregmax; /* 1 */ 38 int acdirmin; /* 1 */ 39 int acdirmax; /* 1 */ 40 struct sockaddr_in addr; /* 1 */ 41 char hostname[NFS_MAXNAMLEN + 1]; /* 1 */ 42 int namlen; /* 2 */ 43 unsigned int bsize; /* 3 */ 44 struct nfs3_fh root; /* 4 */ 45 int pseudoflavor; /* 5 */ 46 char context[NFS_MAX_CONTEXT_LEN + 1]; /* 6 */ 47}; 48 49/* bits in the flags field visible to user space */ 50 51#define NFS_MOUNT_SOFT 0x0001 /* 1 */ 52#define NFS_MOUNT_INTR 0x0002 /* 1 */ /* now unused, but ABI */ 53#define NFS_MOUNT_SECURE 0x0004 /* 1 */ 54#define NFS_MOUNT_POSIX 0x0008 /* 1 */ 55#define NFS_MOUNT_NOCTO 0x0010 /* 1 */ 56#define NFS_MOUNT_NOAC 0x0020 /* 1 */ 57#define NFS_MOUNT_TCP 0x0040 /* 2 */ 58#define NFS_MOUNT_VER3 0x0080 /* 3 */ 59#define NFS_MOUNT_KERBEROS 0x0100 /* 3 */ 60#define NFS_MOUNT_NONLM 0x0200 /* 3 */ 61#define NFS_MOUNT_BROKEN_SUID 0x0400 /* 4 */ 62#define NFS_MOUNT_NOACL 0x0800 /* 4 */ 63#define NFS_MOUNT_STRICTLOCK 0x1000 /* reserved for NFSv4 */ 64#define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 non-text parsed mount data only */ 65#define NFS_MOUNT_NORDIRPLUS 0x4000 /* 5 */ 66#define NFS_MOUNT_UNSHARED 0x8000 /* 5 */ 67#define NFS_MOUNT_FLAGMASK 0xFFFF 68 69#endif 70