1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _LINUX_NFS4_MOUNT_H 3*4882a593Smuzhiyun #define _LINUX_NFS4_MOUNT_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * linux/include/linux/nfs4_mount.h 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 2002 Trond Myklebust 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * structure passed from user-space to kernel-space during an nfsv4 mount 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* 14*4882a593Smuzhiyun * WARNING! Do not delete or change the order of these fields. If 15*4882a593Smuzhiyun * a new field is required then add it to the end. The version field 16*4882a593Smuzhiyun * tracks which fields are present. This will ensure some measure of 17*4882a593Smuzhiyun * mount-to-kernel version compatibility. Some of these aren't used yet 18*4882a593Smuzhiyun * but here they are anyway. 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun #define NFS4_MOUNT_VERSION 1 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun struct nfs_string { 23*4882a593Smuzhiyun unsigned int len; 24*4882a593Smuzhiyun const char __user * data; 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun struct nfs4_mount_data { 28*4882a593Smuzhiyun int version; /* 1 */ 29*4882a593Smuzhiyun int flags; /* 1 */ 30*4882a593Smuzhiyun int rsize; /* 1 */ 31*4882a593Smuzhiyun int wsize; /* 1 */ 32*4882a593Smuzhiyun int timeo; /* 1 */ 33*4882a593Smuzhiyun int retrans; /* 1 */ 34*4882a593Smuzhiyun int acregmin; /* 1 */ 35*4882a593Smuzhiyun int acregmax; /* 1 */ 36*4882a593Smuzhiyun int acdirmin; /* 1 */ 37*4882a593Smuzhiyun int acdirmax; /* 1 */ 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun /* see the definition of 'struct clientaddr4' in RFC3010 */ 40*4882a593Smuzhiyun struct nfs_string client_addr; /* 1 */ 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun /* Mount path */ 43*4882a593Smuzhiyun struct nfs_string mnt_path; /* 1 */ 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun /* Server details */ 46*4882a593Smuzhiyun struct nfs_string hostname; /* 1 */ 47*4882a593Smuzhiyun /* Server IP address */ 48*4882a593Smuzhiyun unsigned int host_addrlen; /* 1 */ 49*4882a593Smuzhiyun struct sockaddr __user * host_addr; /* 1 */ 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun /* Transport protocol to use */ 52*4882a593Smuzhiyun int proto; /* 1 */ 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun /* Pseudo-flavours to use for authentication. See RFC2623 */ 55*4882a593Smuzhiyun int auth_flavourlen; /* 1 */ 56*4882a593Smuzhiyun int __user *auth_flavours; /* 1 */ 57*4882a593Smuzhiyun }; 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun /* bits in the flags field */ 60*4882a593Smuzhiyun /* Note: the fields that correspond to existing NFSv2/v3 mount options 61*4882a593Smuzhiyun * should mirror the values from include/linux/nfs_mount.h 62*4882a593Smuzhiyun */ 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun #define NFS4_MOUNT_SOFT 0x0001 /* 1 */ 65*4882a593Smuzhiyun #define NFS4_MOUNT_INTR 0x0002 /* 1 */ 66*4882a593Smuzhiyun #define NFS4_MOUNT_NOCTO 0x0010 /* 1 */ 67*4882a593Smuzhiyun #define NFS4_MOUNT_NOAC 0x0020 /* 1 */ 68*4882a593Smuzhiyun #define NFS4_MOUNT_STRICTLOCK 0x1000 /* 1 */ 69*4882a593Smuzhiyun #define NFS4_MOUNT_UNSHARED 0x8000 /* 1 */ 70*4882a593Smuzhiyun #define NFS4_MOUNT_FLAGMASK 0x9033 71*4882a593Smuzhiyun 72*4882a593Smuzhiyun #endif 73