1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _LINUX_NFS_MOUNT_H 3*4882a593Smuzhiyun #define _LINUX_NFS_MOUNT_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun /* 6*4882a593Smuzhiyun * linux/include/linux/nfs_mount.h 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 1992 Rick Sladkey 9*4882a593Smuzhiyun * 10*4882a593Smuzhiyun * structure passed from user-space to kernel-space during an nfs mount 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun #include <linux/in.h> 13*4882a593Smuzhiyun #include <linux/nfs.h> 14*4882a593Smuzhiyun #include <linux/nfs2.h> 15*4882a593Smuzhiyun #include <linux/nfs3.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* 18*4882a593Smuzhiyun * WARNING! Do not delete or change the order of these fields. If 19*4882a593Smuzhiyun * a new field is required then add it to the end. The version field 20*4882a593Smuzhiyun * tracks which fields are present. This will ensure some measure of 21*4882a593Smuzhiyun * mount-to-kernel version compatibility. Some of these aren't used yet 22*4882a593Smuzhiyun * but here they are anyway. 23*4882a593Smuzhiyun */ 24*4882a593Smuzhiyun #define NFS_MOUNT_VERSION 6 25*4882a593Smuzhiyun #define NFS_MAX_CONTEXT_LEN 256 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun struct nfs_mount_data { 28*4882a593Smuzhiyun int version; /* 1 */ 29*4882a593Smuzhiyun int fd; /* 1 */ 30*4882a593Smuzhiyun struct nfs2_fh old_root; /* 1 */ 31*4882a593Smuzhiyun int flags; /* 1 */ 32*4882a593Smuzhiyun int rsize; /* 1 */ 33*4882a593Smuzhiyun int wsize; /* 1 */ 34*4882a593Smuzhiyun int timeo; /* 1 */ 35*4882a593Smuzhiyun int retrans; /* 1 */ 36*4882a593Smuzhiyun int acregmin; /* 1 */ 37*4882a593Smuzhiyun int acregmax; /* 1 */ 38*4882a593Smuzhiyun int acdirmin; /* 1 */ 39*4882a593Smuzhiyun int acdirmax; /* 1 */ 40*4882a593Smuzhiyun struct sockaddr_in addr; /* 1 */ 41*4882a593Smuzhiyun char hostname[NFS_MAXNAMLEN + 1]; /* 1 */ 42*4882a593Smuzhiyun int namlen; /* 2 */ 43*4882a593Smuzhiyun unsigned int bsize; /* 3 */ 44*4882a593Smuzhiyun struct nfs3_fh root; /* 4 */ 45*4882a593Smuzhiyun int pseudoflavor; /* 5 */ 46*4882a593Smuzhiyun char context[NFS_MAX_CONTEXT_LEN + 1]; /* 6 */ 47*4882a593Smuzhiyun }; 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun /* bits in the flags field visible to user space */ 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #define NFS_MOUNT_SOFT 0x0001 /* 1 */ 52*4882a593Smuzhiyun #define NFS_MOUNT_INTR 0x0002 /* 1 */ /* now unused, but ABI */ 53*4882a593Smuzhiyun #define NFS_MOUNT_SECURE 0x0004 /* 1 */ 54*4882a593Smuzhiyun #define NFS_MOUNT_POSIX 0x0008 /* 1 */ 55*4882a593Smuzhiyun #define NFS_MOUNT_NOCTO 0x0010 /* 1 */ 56*4882a593Smuzhiyun #define NFS_MOUNT_NOAC 0x0020 /* 1 */ 57*4882a593Smuzhiyun #define NFS_MOUNT_TCP 0x0040 /* 2 */ 58*4882a593Smuzhiyun #define NFS_MOUNT_VER3 0x0080 /* 3 */ 59*4882a593Smuzhiyun #define NFS_MOUNT_KERBEROS 0x0100 /* 3 */ 60*4882a593Smuzhiyun #define NFS_MOUNT_NONLM 0x0200 /* 3 */ 61*4882a593Smuzhiyun #define NFS_MOUNT_BROKEN_SUID 0x0400 /* 4 */ 62*4882a593Smuzhiyun #define NFS_MOUNT_NOACL 0x0800 /* 4 */ 63*4882a593Smuzhiyun #define NFS_MOUNT_STRICTLOCK 0x1000 /* reserved for NFSv4 */ 64*4882a593Smuzhiyun #define NFS_MOUNT_SECFLAVOUR 0x2000 /* 5 non-text parsed mount data only */ 65*4882a593Smuzhiyun #define NFS_MOUNT_NORDIRPLUS 0x4000 /* 5 */ 66*4882a593Smuzhiyun #define NFS_MOUNT_UNSHARED 0x8000 /* 5 */ 67*4882a593Smuzhiyun #define NFS_MOUNT_FLAGMASK 0xFFFF 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun #endif 70