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VFS_CHECKEXP(9)		 BSD Kernel Developer's	Manual	       VFS_CHECKEXP(9)

NAME
     VFS_CHECKEXP -- check if a	file system is exported	to a client

SYNOPSIS
     #include <sys/param.h>
     #include <sys/mount.h>

     int
     VFS_CHECKEXP(struct mount *mp, struct sockaddr *nam, int *exflagsp,
	 struct	ucred **credanonp);

DESCRIPTION
     This is used by the NFS server to check if	a mount	point is exported to a
     client.

     Its arguments are:

     mp		The mount point	to be checked.

     nam	An mbuf	containing the network address of the client.

     exflagsp	Return parameter for the export	flags for this client.

     credanonp	Return parameter for the anonymous credentials for this
		client.

     This should be called on a	file system's mount structure to determine if
     it	is exported to a client	whose address is contained in nam.

     It	is generally called before VFS_FHTOVP(9) to validate that a client has
     access to the file	system.

     The file system should call vfs_export_lookup(9) with the address of an
     appropriate netexport structure and the address of	the client, nam, to
     verify that the client can	access this file system.

RETURN VALUES
     The export	flags and anonymous credentials	specific to the	client (re-
     turned by vfs_export_lookup(9)) will be returned in *exflagsp and
     *credanonp.

SEE ALSO
     VFS(9), VFS_FHTOVP(9), VFS_VPTOFH(9), vnode(9)

AUTHORS
     This manual page was written by Alfred Perlstein.

BSD			      September	10, 1999			   BSD

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | AUTHORS

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