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