BSD 4_4 release

[unix-history] / usr / src / sys / sys / mount.h

diff --git a/usr/src/sys/sys/mount.h b/usr/src/sys/sys/mount.h
index 602e0b2..bb8c32a 100644 (file)
--- a/usr/src/sys/sys/mount.h
+++ b/usr/src/sys/sys/mount.h
@@ -1,23 +1,43 @@
 /*
 /*

- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1989, 1991, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.

  *
  *

- *     @(#)mount.h     7.1 (Berkeley) %G%
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)mount.h     8.1 (Berkeley) 6/2/93

  */
 
  */
 

-typedef quad fsid_t;                   /* file system id type */
+#ifndef KERNEL
+#include <sys/ucred.h>
+#endif
+
+typedef struct { long val[2]; } fsid_t;                /* file system id type */

 
 /*
  * File identifier.
 
 /*
  * File identifier.


@@ -27,167 +47,323 @@ typedef quad fsid_t;                      /* file system id type */
 
 struct fid {
        u_short         fid_len;                /* length of data in bytes */
 
 struct fid {
        u_short         fid_len;                /* length of data in bytes */

+       u_short         fid_reserved;           /* force longword alignment */

        char            fid_data[MAXFIDSZ];     /* data (variable length) */
 };
 
 /*
        char            fid_data[MAXFIDSZ];     /* data (variable length) */
 };
 
 /*

- * Structure per mounted file system.
- * Each mounted file system has an array of
- * operations and an instance record.
- * The file systems are put on a doubly linked list.
+ * file system statistics
+ */
+
+#define MNAMELEN 90    /* length of buffer for returned name */
+
+struct statfs {
+       short   f_type;                 /* type of filesystem (see below) */
+       short   f_flags;                /* copy of mount flags */
+       long    f_bsize;                /* fundamental file system block size */
+       long    f_iosize;               /* optimal transfer block size */
+       long    f_blocks;               /* total data blocks in file system */
+       long    f_bfree;                /* free blocks in fs */
+       long    f_bavail;               /* free blocks avail to non-superuser */
+       long    f_files;                /* total file nodes in file system */
+       long    f_ffree;                /* free file nodes in fs */
+       fsid_t  f_fsid;                 /* file system id */
+       long    f_spare[9];             /* spare for later */
+       char    f_mntonname[MNAMELEN];  /* directory on which mounted */
+       char    f_mntfromname[MNAMELEN];/* mounted filesystem */
+};
+
+/*
+ * File system types.
+ */
+#define        MOUNT_NONE      0
+#define        MOUNT_UFS       1
+#define        MOUNT_NFS       2
+#define        MOUNT_MFS       3
+#define        MOUNT_PC        4
+#define        MOUNT_LFS       5
+#define        MOUNT_LOFS      6
+#define        MOUNT_FDESC     7
+#define        MOUNT_PORTAL    8
+#define MOUNT_NULL     9
+#define MOUNT_UMAP     10
+#define MOUNT_KERNFS   11
+#define        MOUNT_MAXTYPE   11
+
+#define INITMOUNTNAMES { \
+       "none",         /*  0 MOUNT_NONE */ \
+       "ufs",          /*  1 MOUNT_UFS */ \
+       "nfs",          /*  2 MOUNT_NFS */ \
+       "mfs",          /*  3 MOUNT_MFS */ \
+       "pc",           /*  4 MOUNT_PC */ \
+       "lfs",          /*  5 MOUNT_LFS */ \
+       "lofs",         /*  6 MOUNT_LOFS */ \
+       "fdesc",        /*  7 MOUNT_FDESC */ \
+       "portal",       /*  8 MOUNT_PORTAL */ \
+       "null",         /*  9 MOUNT_NULL */ \
+       "umap",         /* 10 MOUNT_UMAP */ \
+       "kernfs",       /* 11 MOUNT_KERNFS */ \
+       0,              /* 12 MOUNT_SPARE */ \
+}
+
+/*
+ * Structure per mounted file system.  Each mounted file system has an
+ * array of operations and an instance record.  The file systems are
+ * put on a doubly linked list.

  */
 struct mount {
  */
 struct mount {

-       struct mount    *m_next;                /* next in mount list */
-       struct mount    *m_prev;                /* prev in mount list */
-       struct vfsops   *m_op;                  /* operations on fs */
-       struct vnode    *m_vnodecovered;        /* vnode we mounted on */
-       int             m_flag;                 /* flags */
-       long            m_fsize;                /* fundamental block size */
-       long            m_bsize;                /* optimal transfer size */
-       fsid_t          m_fsid;                 /* identifier */
-       uid_t           m_exroot;               /* exported mapping for uid 0 */
-       qaddr_t         m_data;                 /* private data */
+       struct mount    *mnt_next;              /* next in mount list */
+       struct mount    *mnt_prev;              /* prev in mount list */
+       struct vfsops   *mnt_op;                /* operations on fs */
+       struct vnode    *mnt_vnodecovered;      /* vnode we mounted on */
+       struct vnode    *mnt_mounth;            /* list of vnodes this mount */
+       int             mnt_flag;               /* flags */
+       int             mnt_maxsymlinklen;      /* max size of short symlink */
+       struct statfs   mnt_stat;               /* cache of filesystem stats */
+       qaddr_t         mnt_data;               /* private data */

 };
 
 /*
 };
 
 /*

- * mount flags.
- * M_MLOCK lock the mount entry so that name lookup cannot proceed
- * past the mount point.  This keeps the subtree stable during mounts
- * and unmounts.
+ * Mount flags.
+ *
+ * Unmount uses MNT_FORCE flag.

  */
  */

-#define        M_RDONLY        0x01            /* read only filesystem */
-#define        M_SYNCHRONOUS   0x02            /* file system written synchronously */
-#define        M_MLOCK         0x04            /* lock so that subtree is stable */
-#define        M_MWAIT         0x08            /* someone is waiting for lock */
-#define        M_NOEXEC        0x10            /* can't exec from filesystem */
-#define        M_NOSUID        0x20            /* don't honor setuid bits on fs */
-#define        M_NODEV         0x40            /* don't interpret special files */
+#define        MNT_RDONLY      0x00000001      /* read only filesystem */
+#define        MNT_SYNCHRONOUS 0x00000002      /* file system written synchronously */
+#define        MNT_NOEXEC      0x00000004      /* can't exec from filesystem */
+#define        MNT_NOSUID      0x00000008      /* don't honor setuid bits on fs */
+#define        MNT_NODEV       0x00000010      /* don't interpret special files */
+#define        MNT_UNION       0x00000020      /* union with underlying filesystem */
+

 /*
  * exported mount flags.
  */
 /*
  * exported mount flags.
  */

-#define        M_EXPORTED      0x100           /* file system is exported */
-#define        M_EXRDONLY      0x200           /* exported read only */
+#define        MNT_EXRDONLY    0x00000080      /* exported read only */
+#define        MNT_EXPORTED    0x00000100      /* file system is exported */
+#define        MNT_DEFEXPORTED 0x00000200      /* exported to the world */
+#define        MNT_EXPORTANON  0x00000400      /* use anon uid mapping for everyone */
+#define        MNT_EXKERB      0x00000800      /* exported with Kerberos uid mapping */

 
 /*
 
 /*

- * Set/clear the M_MLOCK
+ * Flags set by internal operations.

  */
  */

-#define        VFSLOCK(mp) { \
-       while ((mp)->m_flag & M_MLOCK) { \
-               (mp)->m_flag |= M_MWAIT; \
-               (void) sleep((caddr_t)(mp), PVFS); \
-       } \
-       (mp)->m_flag |= M_MLOCK; \
-}
+#define        MNT_LOCAL       0x00001000      /* filesystem is stored locally */
+#define        MNT_QUOTA       0x00002000      /* quotas are enabled on filesystem */

 
 

-#define        VFSUNLOCK(mp) { \
-       (mp)->m_flag &= ~M_MLOCK; \
-       if ((mp)->m_flag&M_MWAIT) { \
-               (mp)->m_flag &= ~M_MWAIT; \
-               wakeup((caddr_t)(mp)); \
-       } \
-}
+/*
+ * Mask of flags that are visible to statfs()
+ */
+#define        MNT_VISFLAGMASK 0x0000ffff
+
+/*
+ * filesystem control flags.
+ *
+ * MNT_MLOCK lock the mount entry so that name lookup cannot proceed
+ * past the mount point.  This keeps the subtree stable during mounts
+ * and unmounts.
+ */
+#define        MNT_UPDATE      0x00010000      /* not a real mount, just an update */
+#define        MNT_DELEXPORT   0x00020000      /* delete export host lists */
+#define        MNT_RELOAD      0x00040000      /* reload filesystem data */
+#define        MNT_FORCE       0x00080000      /* force unmount or readonly change */
+#define        MNT_MLOCK       0x00100000      /* lock so that subtree is stable */
+#define        MNT_MWAIT       0x00200000      /* someone is waiting for lock */
+#define MNT_MPBUSY     0x00400000      /* scan of mount point in progress */
+#define MNT_MPWANT     0x00800000      /* waiting for mount point */
+#define MNT_UNMOUNT    0x01000000      /* unmount in progress */
+#define MNT_WANTRDWR   0x02000000      /* want upgrade to read/write */

 
 /*
  * Operations supported on mounted file system.
  */
 
 /*
  * Operations supported on mounted file system.
  */

+#ifdef KERNEL
+#ifdef __STDC__
+struct nameidata;
+struct mbuf;
+#endif
+

 struct vfsops {
 struct vfsops {

-       int     (*vfs_mount)(   /* mp, path, data, ndp */ );
-       int     (*vfs_unmount)( /* mp, forcibly */ );
-       int     (*vfs_root)(    /* mp, vpp */ );
-       int     (*vfs_statfs)(  /* mp, sbp */ );
-       int     (*vfs_sync)(    /* mp, waitfor */ );
-       int     (*vfs_fhtovp)(  /* mp, fhp, vpp */ );
+       int     (*vfs_mount)    __P((struct mount *mp, char *path, caddr_t data,
+                                   struct nameidata *ndp, struct proc *p));
+       int     (*vfs_start)    __P((struct mount *mp, int flags,
+                                   struct proc *p));
+       int     (*vfs_unmount)  __P((struct mount *mp, int mntflags,
+                                   struct proc *p));
+       int     (*vfs_root)     __P((struct mount *mp, struct vnode **vpp));
+       int     (*vfs_quotactl) __P((struct mount *mp, int cmds, uid_t uid,
+                                   caddr_t arg, struct proc *p));
+       int     (*vfs_statfs)   __P((struct mount *mp, struct statfs *sbp,
+                                   struct proc *p));
+       int     (*vfs_sync)     __P((struct mount *mp, int waitfor,
+                                   struct ucred *cred, struct proc *p));
+       int     (*vfs_vget)     __P((struct mount *mp, ino_t ino,
+                                   struct vnode **vpp));
+       int     (*vfs_fhtovp)   __P((struct mount *mp, struct fid *fhp,
+                                   struct mbuf *nam, struct vnode **vpp,
+                                   int *exflagsp, struct ucred **credanonp));
+       int     (*vfs_vptofh)   __P((struct vnode *vp, struct fid *fhp));
+       int     (*vfs_init)     __P((void));

 };
 
 };
 

-#define VFS_MOUNT(MP, PATH, DATA, NDP) \
-       (*(MP)->m_op->vfs_mount)(MP, PATH, DATA, NDP)
-#define VFS_UNMOUNT(MP, FORCIBLY) (*(MP)->m_op->vfs_unmount)(MP, FORCIBLY)
-#define VFS_ROOT(MP, VPP)        (*(MP)->m_op->vfs_root)(MP,VPP)
-#define VFS_STATFS(MP, SBP)      (*(MP)->m_op->vfs_statfs)(MP, SBP)
-#define VFS_SYNC(MP, WAITFOR)    (*(MP)->m_op->vfs_sync)(MP, WAITFOR)
-#define VFS_FHTOVP(MP, FHP, VPP)  (*(MP)->m_op->vfs_fhtovp)(MP, FHP, VPP)
+#define VFS_MOUNT(MP, PATH, DATA, NDP, P) \
+       (*(MP)->mnt_op->vfs_mount)(MP, PATH, DATA, NDP, P)
+#define VFS_START(MP, FLAGS, P)          (*(MP)->mnt_op->vfs_start)(MP, FLAGS, P)
+#define VFS_UNMOUNT(MP, FORCE, P) (*(MP)->mnt_op->vfs_unmount)(MP, FORCE, P)
+#define VFS_ROOT(MP, VPP)        (*(MP)->mnt_op->vfs_root)(MP, VPP)
+#define VFS_QUOTACTL(MP,C,U,A,P)  (*(MP)->mnt_op->vfs_quotactl)(MP, C, U, A, P)
+#define VFS_STATFS(MP, SBP, P)   (*(MP)->mnt_op->vfs_statfs)(MP, SBP, P)
+#define VFS_SYNC(MP, WAIT, C, P)  (*(MP)->mnt_op->vfs_sync)(MP, WAIT, C, P)
+#define VFS_VGET(MP, INO, VPP)   (*(MP)->mnt_op->vfs_vget)(MP, INO, VPP)
+#define VFS_FHTOVP(MP, FIDP, NAM, VPP, EXFLG, CRED) \
+       (*(MP)->mnt_op->vfs_fhtovp)(MP, FIDP, NAM, VPP, EXFLG, CRED)
+#define        VFS_VPTOFH(VP, FIDP)      (*(VP)->v_mount->mnt_op->vfs_vptofh)(VP, FIDP)
+#endif /* KERNEL */

 
 /*
 
 /*

- * forcibly flags for vfs_umount().
- * waitfor flags to vfs_sync()
+ * Flags for various system call interfaces.
+ *
+ * waitfor flags to vfs_sync() and getfsstat()

  */
  */

-#define MNT_FORCE      1
-#define MNT_NOFORCE    2

 #define MNT_WAIT       1
 #define MNT_NOWAIT     2
 
 /*
 #define MNT_WAIT       1
 #define MNT_NOWAIT     2
 
 /*

- * file system statistics
+ * Generic file handle

  */
  */

+struct fhandle {
+       fsid_t  fh_fsid;        /* File system id of mount point */
+       struct  fid fh_fid;     /* File sys specific id */
+};
+typedef struct fhandle fhandle_t;

 
 

-#define MNAMELEN 32    /* length of buffer for returned name */
+#ifdef KERNEL
+#include <net/radix.h>

 
 

-struct statfs {
-       short   f_type;                 /* type of filesystem (see below) */
-       short   f_flags;                /* copy of mount flags */
-       long    f_fsize;                /* fundamental file system block size */
-       long    f_bsize;                /* optimal transfer block size */
-       long    f_blocks;               /* total data blocks in file system */
-       long    f_bfree;                /* free blocks in fs */
-       long    f_bavail;               /* free blocks avail to non-superuser */
-       long    f_files;                /* total file nodes in file system */
-       long    f_ffree;                /* free file nodes in fs */
-       fsid_t  f_fsid;                 /* file system id */
-       long    f_spare[6];             /* spare for later */
-       char    f_mntonname[MNAMELEN];  /* directory on which mounted */
-       char    f_mntfromname[MNAMELEN];/* mounted filesystem */
-};

 /*
 /*

- * File system types.
+ * Network address lookup element

  */
  */

-#define        MOUNT_NONE      0
-#define        MOUNT_UFS       1
-#define        MOUNT_NFS       2
-#define        MOUNT_PC        3
-#define        MOUNT_MAXTYPE   3
+struct netcred {
+       struct  radix_node netc_rnodes[2];
+       int     netc_exflags;
+       struct  ucred netc_anon;
+};
+#endif /* KERNEL */

 
 /*
 
 /*

- * Arguments to mount UFS
+ * Arguments to mount UFS-based filesystems

  */
 struct ufs_args {
  */
 struct ufs_args {

-       char    *fspec;
+       char    *fspec;         /* block special device to mount */
+       int     exflags;        /* export related flags */
+       uid_t   exroot;         /* mapping for root uid */
+       struct  ucred anon;     /* mapping for anonymous user */
+       struct  sockaddr *saddr;/* net address to which exported */
+       int     slen;           /* and the net address length */
+       struct  sockaddr *smask;/* mask of valid bits in saddr */
+       int     msklen;         /* and the smask length */

 };
 
 };
 

+#ifdef MFS
+/*
+ * Arguments to mount MFS
+ */
+struct mfs_args {
+       char    *name;          /* name to export for statfs */
+       caddr_t base;           /* base address of file system in memory */
+       u_long size;            /* size of file system */
+};
+#endif /* MFS */
+

 #ifdef NFS
 #ifdef NFS

+/*
+ * File Handle (32 bytes for version 2), variable up to 1024 for version 3
+ */
+union nfsv2fh {
+       fhandle_t       fh_generic;
+       u_char          fh_bytes[32];
+};
+typedef union nfsv2fh nfsv2fh_t;
+

 /*
  * Arguments to mount NFS
  */
 struct nfs_args {
 /*
  * Arguments to mount NFS
  */
 struct nfs_args {

-       struct sockaddr_in      *addr;          /* file server address */
-       fhandle_t               *fh;            /* File handle to be mounted */
-       int                     flags;          /* flags */
-       int                     wsize;          /* write size in bytes */
-       int                     rsize;          /* read size in bytes */
-       int                     timeo;          /* initial timeout in .1 secs */
-       int                     retrans;        /* times to retry send */
-       char                    *hostname;      /* server's name */
+       struct sockaddr *addr;          /* file server address */
+       int             addrlen;        /* length of address */
+       int             sotype;         /* Socket type */
+       int             proto;          /* and Protocol */
+       nfsv2fh_t       *fh;            /* File handle to be mounted */
+       int             flags;          /* flags */
+       int             wsize;          /* write size in bytes */
+       int             rsize;          /* read size in bytes */
+       int             timeo;          /* initial timeout in .1 secs */
+       int             retrans;        /* times to retry send */
+       int             maxgrouplist;   /* Max. size of group list */
+       int             readahead;      /* # of blocks to readahead */
+       int             leaseterm;      /* Term (sec) of lease */
+       int             deadthresh;     /* Retrans threshold */
+       char            *hostname;      /* server's name */

 };
 };

+
+

 /*
  * NFS mount option flags
  */
 /*
  * NFS mount option flags
  */

-#define        NFSMNT_SOFT     0x001   /* soft mount (hard is default) */
-#define        NFSMNT_WSIZE    0x002   /* set write size */
-#define        NFSMNT_RSIZE    0x004   /* set read size */
-#define        NFSMNT_TIMEO    0x008   /* set initial timeout */
-#define        NFSMNT_RETRANS  0x010   /* set number of request retrys */
-#define        NFSMNT_HOSTNAME 0x020   /* set hostname for error printf */
-#define        NFSMNT_INT      0x040   /* allow interrupts on hard mount */
-#endif NFS
+#define        NFSMNT_SOFT             0x00000001  /* soft mount (hard is default) */
+#define        NFSMNT_WSIZE            0x00000002  /* set write size */
+#define        NFSMNT_RSIZE            0x00000004  /* set read size */
+#define        NFSMNT_TIMEO            0x00000008  /* set initial timeout */
+#define        NFSMNT_RETRANS          0x00000010  /* set number of request retrys */
+#define        NFSMNT_MAXGRPS          0x00000020  /* set maximum grouplist size */
+#define        NFSMNT_INT              0x00000040  /* allow interrupts on hard mount */
+#define        NFSMNT_NOCONN           0x00000080  /* Don't Connect the socket */
+#define        NFSMNT_NQNFS            0x00000100  /* Use Nqnfs protocol */
+#define        NFSMNT_MYWRITE          0x00000200  /* Assume writes were mine */
+#define        NFSMNT_KERB             0x00000400  /* Use Kerberos authentication */
+#define        NFSMNT_DUMBTIMR         0x00000800  /* Don't estimate rtt dynamically */
+#define        NFSMNT_RDIRALOOK        0x00001000  /* Do lookup with readdir (nqnfs) */
+#define        NFSMNT_LEASETERM        0x00002000  /* set lease term (nqnfs) */
+#define        NFSMNT_READAHEAD        0x00004000  /* set read ahead */
+#define        NFSMNT_DEADTHRESH       0x00008000  /* set dead server retry thresh */
+#define        NFSMNT_NQLOOKLEASE      0x00010000  /* Get lease for lookup */
+#define        NFSMNT_RESVPORT         0x00020000  /* Allocate a reserved port */
+#define        NFSMNT_INTERNAL         0xffe00000  /* Bits set internally */
+#define        NFSMNT_MNTD             0x00200000  /* Mnt server for mnt point */
+#define        NFSMNT_DISMINPROG       0x00400000  /* Dismount in progress */
+#define        NFSMNT_DISMNT           0x00800000  /* Dismounted */
+#define        NFSMNT_SNDLOCK          0x01000000  /* Send socket lock */
+#define        NFSMNT_WANTSND          0x02000000  /* Want above */
+#define        NFSMNT_RCVLOCK          0x04000000  /* Rcv socket lock */
+#define        NFSMNT_WANTRCV          0x08000000  /* Want above */
+#define        NFSMNT_WAITAUTH         0x10000000  /* Wait for authentication */
+#define        NFSMNT_HASAUTH          0x20000000  /* Has authenticator */
+#define        NFSMNT_WANTAUTH         0x40000000  /* Wants an authenticator */
+#define        NFSMNT_AUTHERR          0x80000000  /* Authentication error */
+#endif /* NFS */

 
 #ifdef KERNEL
 /*
  * exported vnode operations
  */
 
 #ifdef KERNEL
 /*
  * exported vnode operations
  */

-extern int     vfs_add();              /* add a new vfs to mounted vfs list */
-extern void    vfs_remove();           /* remove a vfs from mounted vfs list */
-extern int     vfs_lock();             /* lock a vfs */
-extern void    vfs_unlock();           /* unlock a vfs */
-extern struct  mount *getvfs();        /* return vfs given fsid */
-extern struct  mount *rootfs;          /* ptr to root mount structure */
-extern struct  vfsops *vfssw[];        /* mount filesystem type switch table */
-#endif
+void   vfs_remove __P((struct mount *mp)); /* remove a vfs from mount list */
+int    vfs_lock __P((struct mount *mp));   /* lock a vfs */
+void   vfs_unlock __P((struct mount *mp)); /* unlock a vfs */
+struct mount *getvfs __P((fsid_t *fsid));  /* return vfs given fsid */
+extern struct  mount *rootfs;              /* ptr to root mount structure */
+extern struct  vfsops *vfssw[];            /* mount filesystem type table */
+
+#else /* KERNEL */
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+int    fstatfs __P((int, struct statfs *));
+int    getfh __P((const char *, fhandle_t *));
+int    getfsstat __P((struct statfs *, long, int));
+int    getmntinfo __P((struct statfs **, int));
+int    mount __P((int, const char *, int, void *));
+int    statfs __P((const char *, struct statfs *));
+int    unmount __P((const char *, int));
+__END_DECLS
+
+#endif /* KERNEL */