SYNOPSIS

In sys/param.h In sys/mount.h Ft int Fn VFS_CHECKEXP struct mount *mp struct sockaddr *nam int *exflagsp struct ucred **credanonp

DESCRIPTION

The Fn VFS_CHECKEXP macro is used by the NFS server to check if a mount point is exported to a client.

The arguments it expects are:

Fa mp

The mount point to be checked.

Fa nam

An mbuf containing the network address of the client.

Fa exflagsp

Return parameter for the export flags for this client.

Fa credanonp

Return parameter for the anonymous credentials for this client.

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

It is generally called before VFS_FHTOVP9 to validate that a client has access to the file system.

The file system should call vfs_export_lookup9 with the address of an appropriate Vt netexport structure and the address of the client, Fa nam , to verify that the client can access this file system.

RETURN VALUES

The export flags and anonymous credentials specific to the client (returned by vfs_export_lookup9) will be returned in Fa *exflagsp and Fa *credanonp .

AUTHORS

This manual page was written by An Alfred Perlstein .