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- /*
- * Copyright (c) 1989, 1991, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * 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.
- *
- * 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 8.13 (Berkeley) 3/27/94
- */
-
- #ifndef KERNEL
- #include <sys/ucred.h>
- #endif
- #include <sys/queue.h>
-
- typedef struct { long val[2]; } fsid_t; /* file system id type */
-
- /*
- * File identifier.
- * These are unique per filesystem on a single machine.
- */
- #define MAXFIDSZ 16
-
- 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) */
- };
-
- /*
- * 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 /* Fast Filesystem */
- #define MOUNT_NFS 2 /* Sun-compatible Network Filesystem */
- #define MOUNT_MFS 3 /* Memory-based Filesystem */
- #define MOUNT_MSDOS 4 /* MS/DOS Filesystem */
- #define MOUNT_LFS 5 /* Log-based Filesystem */
- #define MOUNT_LOFS 6 /* Loopback Filesystem */
- #define MOUNT_FDESC 7 /* File Descriptor Filesystem */
- #define MOUNT_PORTAL 8 /* Portal Filesystem */
- #define MOUNT_NULL 9 /* Minimal Filesystem Layer */
- #define MOUNT_UMAP 10 /* User/Group Identifer Remapping Filesystem */
- #define MOUNT_KERNFS 11 /* Kernel Information Filesystem */
- #define MOUNT_PROCFS 12 /* /proc Filesystem */
- #define MOUNT_AFS 13 /* Andrew Filesystem */
- #define MOUNT_CD9660 14 /* ISO9660 (aka CDROM) Filesystem */
- #define MOUNT_UNION 15 /* Union (translucent) Filesystem */
- #define MOUNT_MAXTYPE 15
-
- #define INITMOUNTNAMES { \
- "none", /* 0 MOUNT_NONE */ \
- "ufs", /* 1 MOUNT_UFS */ \
- "nfs", /* 2 MOUNT_NFS */ \
- "mfs", /* 3 MOUNT_MFS */ \
- "msdos", /* 4 MOUNT_MSDOS */ \
- "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 */ \
- "procfs", /* 12 MOUNT_PROCFS */ \
- "afs", /* 13 MOUNT_AFS */ \
- "iso9660fs", /* 14 MOUNT_CD9660 */ \
- "union", /* 15 MOUNT_UNION */ \
- 0, /* 16 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.
- */
- LIST_HEAD(vnodelst, vnode);
-
- struct mount {
- TAILQ_ENTRY(mount) mnt_list; /* mount list */
- struct vfsops *mnt_op; /* operations on fs */
- struct vnode *mnt_vnodecovered; /* vnode we mounted on */
- struct vnodelst mnt_vnodelist; /* 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.
- *
- * Unmount uses MNT_FORCE flag.
- */
- #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 */
- #define MNT_ASYNC 0x00000040 /* file system written asynchronously */
-
- /*
- * exported mount flags.
- */
- #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 */
-
- /*
- * Flags set by internal operations.
- */
- #define MNT_LOCAL 0x00001000 /* filesystem is stored locally */
- #define MNT_QUOTA 0x00002000 /* quotas are enabled on filesystem */
- #define MNT_ROOTFS 0x00004000 /* identifies the root filesystem */
- #define MNT_USER 0x00008000 /* mounted by a user */
-
- /*
- * 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.
- */
- #ifdef KERNEL
- #ifdef __STDC__
- struct nameidata;
- struct mbuf;
- #endif
-
- struct vfsops {
- 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, 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 */
-
- /*
- * Flags for various system call interfaces.
- *
- * waitfor flags to vfs_sync() and getfsstat()
- */
- #define MNT_WAIT 1
- #define MNT_NOWAIT 2
-
- /*
- * 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;
-
- #ifdef KERNEL
- #include <net/radix.h>
- #include <sys/socket.h> /* XXX for AF_MAX */
-
- /*
- * Network address lookup element
- */
- struct netcred {
- struct radix_node netc_rnodes[2];
- int netc_exflags;
- struct ucred netc_anon;
- };
-
- /*
- * Network export information
- */
- struct netexport {
- struct netcred ne_defexported; /* Default export */
- struct radix_node_head *ne_rtable[AF_MAX+1]; /* Individual exports */
- };
- #endif /* KERNEL */
-
- /*
- * Export arguments for local filesystem mount calls.
- */
- struct export_args {
- int ex_flags; /* export related flags */
- uid_t ex_root; /* mapping for root uid */
- struct ucred ex_anon; /* mapping for anonymous user */
- struct sockaddr *ex_addr; /* net address to which exported */
- int ex_addrlen; /* and the net address length */
- struct sockaddr *ex_mask; /* mask of valid bits in saddr */
- int ex_masklen; /* and the smask length */
- };
-
- /*
- * Arguments to mount UFS-based filesystems
- */
- struct ufs_args {
- char *fspec; /* block special device to mount */
- struct export_args export; /* network export information */
- };
-
- #ifdef MFS
- /*
- * Arguments to mount MFS
- */
- struct mfs_args {
- char *fspec; /* name to export for statfs */
- struct export_args export; /* if exported MFSes are supported */
- caddr_t base; /* base of file system in memory */
- u_long size; /* size of file system */
- };
- #endif /* MFS */
-
- #ifdef CD9660
- /*
- * Arguments to mount ISO 9660 filesystems.
- */
- struct iso_args {
- char *fspec; /* block special device to mount */
- struct export_args export; /* network export info */
- int flags; /* mounting flags, see below */
-
- };
- #define ISOFSMNT_NORRIP 0x00000001 /* disable Rock Ridge Ext.*/
- #define ISOFSMNT_GENS 0x00000002 /* enable generation numbers */
- #define ISOFSMNT_EXTATT 0x00000004 /* enable extended attributes */
- #endif /* CD9660 */
-
- #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 {
- 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
- */
- #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
- */
- struct mount *getvfs __P((fsid_t *)); /* return vfs given fsid */
- int vfs_export /* process mount export info */
- __P((struct mount *, struct netexport *, struct export_args *));
- struct netcred *vfs_export_lookup /* lookup host in fs export list */
- __P((struct mount *, struct netexport *, struct mbuf *));
- int vfs_lock __P((struct mount *)); /* lock a vfs */
- int vfs_mountedon __P((struct vnode *));/* is a vfs mounted on vp */
- void vfs_unlock __P((struct mount *)); /* unlock a vfs */
- extern TAILQ_HEAD(mntlist, mount) mountlist; /* mounted filesystem list */
- extern struct vfsops *vfssw[]; /* 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 */
-