mount.h

RTEMS (Real-Time Executive for Multiprocessor Systems) is a free open source real-time operating sys

	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)

#ifdef VFS_LKM
#include <sys/conf.h>
#include <sys/exec.h>
#include <sys/sysent.h>
#include <sys/lkm.h>

#define VFS_SET(vfsops, fsname, index, flags) \
	static struct vfsconf _fs_vfsconf = { \
		&vfsops, \
		#fsname, \
		index, \
		0, \
		flags \
	}; \
	extern struct linker_set MODVNOPS; \
	MOD_VFS(#fsname,index,&MODVNOPS,&_fs_vfsconf); \
	int \
	fsname ## _mod(struct lkm_table *lkmtp, int cmd, int ver) { \
		DISPATCH(lkmtp, cmd, ver, lkm_nullcmd, lkm_nullcmd, lkm_nullcmd); }
#else

#define VFS_SET(vfsops, fsname, index, flags) \
	static struct vfsconf _fs_vfsconf = { \
		&vfsops, \
		#fsname, \
		index, \
		0, \
		flags | VFCF_STATIC \
	}; \
	DATA_SET(vfs_set,_fs_vfsconf)
#endif /* VFS_LKM */

#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 MSDOSFS
/*
 *  Arguments to mount MSDOS filesystems.
 */
struct msdosfs_args {
	char	*fspec;		/* blocks special holding the fs to mount */
	struct	export_args export;	/* network export information */
	uid_t	uid;		/* uid that owns msdosfs files */
	gid_t	gid;		/* gid that owns msdosfs files */
	mode_t	mask;		/* mask to be applied for msdosfs perms */
};
#endif

#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 */
	int ssector;			/* starting sector */

};
#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
/*
 * 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 */
	u_char		*fh;		/* File handle to be mounted */
	int		fhsize;		/* Size, in bytes, of fh */
	int		flags;		/* flags */
	int		wsize;		/* write size in bytes */
	int		rsize;		/* read size in bytes */
	int		readdirsize;	/* readdir 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_NFSV3		0x00000200  /* Use NFS Version 3 protocol */
#define	NFSMNT_KERB		0x00000400  /* Use Kerberos authentication */
#define	NFSMNT_DUMBTIMR		0x00000800  /* Don't estimate rtt dynamically */
#define	NFSMNT_LEASETERM	0x00001000  /* set lease term (nqnfs) */
#define	NFSMNT_READAHEAD	0x00002000  /* set read ahead */
#define	NFSMNT_DEADTHRESH	0x00004000  /* set dead server retry thresh */
#define	NFSMNT_RESVPORT		0x00008000  /* Allocate a reserved port */
#define NFSMNT_RDIRPLUS		0x00010000  /* Use Readdirplus for V3 */
#define NFSMNT_READDIRSIZE	0x00020000  /* Set readdir size */
#define	NFSMNT_INTERNAL		0xfffc0000  /* Bits set internally */
#define NFSMNT_HASWRITEVERF	0x00040000  /* Has write verifier for V3 */
#define NFSMNT_GOTPATHCONF	0x00080000  /* Got the V3 pathconf info */
#define NFSMNT_GOTFSINFO	0x00100000  /* Got the V3 fsinfo */
#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
extern	int (*mountroot) __P((void *));
extern	struct vfsops	*mountrootvfsops;

/*
 * exported vnode operations
 */
int	dounmount __P((struct mount *, int, struct proc *));
struct	mount *getvfs __P((fsid_t *));      /* return vfs given fsid */
void	getnewfsid __P((struct mount *, int));
int	vflush __P((struct mount *, struct vnode *, int));
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 */
int	vfs_mountroot __P((void *));		/* XXX goes away? */
void	vfs_msync __P((struct mount *, int));
void	vfs_unlock __P((struct mount *));       /* unlock a vfs */
void	vfs_unmountall __P((void));
int	vfs_busy __P((struct mount *));         /* mark a vfs  busy */
void	vfs_unbusy __P((struct mount *));       /* mark a vfs not busy */
extern	CIRCLEQ_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));

/* C library stuff */
struct	vfsconf *getvfsbyname __P((const char *));
struct	vfsconf *getvfsbytype __P((int));
struct	vfsconf *getvfsent __P((void));
void	setvfsent __P((int));
void	endvfsent __P((void));
int	vfsisloadable __P((const char *));
int	vfsload __P((const char *));
__END_DECLS

#endif /* KERNEL */

#endif /* !_SYS_MOUNT_H_ */