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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _LINUX_NFS_MOUNT_H3#define _LINUX_NFS_MOUNT_H4 5/*6 * linux/include/linux/nfs_mount.h7 *8 * Copyright (C) 1992 Rick Sladkey9 *10 * structure passed from user-space to kernel-space during an nfs mount11 */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. If19 * a new field is required then add it to the end. The version field20 * tracks which fields are present. This will ensure some measure of21 * mount-to-kernel version compatibility. Some of these aren't used yet22 * but here they are anyway.23 */24#define NFS_MOUNT_VERSION 625#define NFS_MAX_CONTEXT_LEN 25626 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 0xFFFF68 69#endif70