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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _LINUX_NFS4_MOUNT_H3#define _LINUX_NFS4_MOUNT_H4 5/*6 * linux/include/linux/nfs4_mount.h7 *8 * Copyright (C) 2002 Trond Myklebust9 *10 * structure passed from user-space to kernel-space during an nfsv4 mount11 */12 13/*14 * WARNING! Do not delete or change the order of these fields. If15 * a new field is required then add it to the end. The version field16 * tracks which fields are present. This will ensure some measure of17 * mount-to-kernel version compatibility. Some of these aren't used yet18 * but here they are anyway.19 */20#define NFS4_MOUNT_VERSION 121 22struct nfs_string {23 unsigned int len;24 const char __user * data;25};26 27struct nfs4_mount_data {28 int version; /* 1 */29 int flags; /* 1 */30 int rsize; /* 1 */31 int wsize; /* 1 */32 int timeo; /* 1 */33 int retrans; /* 1 */34 int acregmin; /* 1 */35 int acregmax; /* 1 */36 int acdirmin; /* 1 */37 int acdirmax; /* 1 */38 39 /* see the definition of 'struct clientaddr4' in RFC3010 */40 struct nfs_string client_addr; /* 1 */41 42 /* Mount path */43 struct nfs_string mnt_path; /* 1 */44 45 /* Server details */46 struct nfs_string hostname; /* 1 */47 /* Server IP address */48 unsigned int host_addrlen; /* 1 */49 struct sockaddr __user * host_addr; /* 1 */50 51 /* Transport protocol to use */52 int proto; /* 1 */53 54 /* Pseudo-flavours to use for authentication. See RFC2623 */55 int auth_flavourlen; /* 1 */56 int __user *auth_flavours; /* 1 */57};58 59/* bits in the flags field */60/* Note: the fields that correspond to existing NFSv2/v3 mount options61 * should mirror the values from include/linux/nfs_mount.h62 */63 64#define NFS4_MOUNT_SOFT 0x0001 /* 1 */65#define NFS4_MOUNT_INTR 0x0002 /* 1 */66#define NFS4_MOUNT_NOCTO 0x0010 /* 1 */67#define NFS4_MOUNT_NOAC 0x0020 /* 1 */68#define NFS4_MOUNT_STRICTLOCK 0x1000 /* 1 */69#define NFS4_MOUNT_UNSHARED 0x8000 /* 1 */70#define NFS4_MOUNT_FLAGMASK 0x903371 72#endif73