s4-torture: add smb2 nfs testing suite

s4-torture: add smb2 nfs testing suite

This testsuite allows to explore filesystem behavior when data is shared
via NFS and SMB concurrently. It requires libnfs-devel to be installed.

For testing an export like /opt/test add this to Samba's /etc/samba/smb.conf:

[test]
        path = /opt/test
        read only = No

And this to NFS Ganesha's /etc/ganesha/ganesha.conf:

EXPORT
{
        Export_Id = 1;
        Path = /opt/test;
        Pseudo = /opt/test;
        Sectype = sys,krb5,krb5i,krb5p;
        Protocols = 3,4;
        Access_Type = RW;

        FSAL {
                Name = VFS;
        }

        CLIENT {
                Clients=*;
                Protocols=3,4;
        }
}

Run the testsuite like this:

smbtorture //192.168.3.1/test -U smbuser%password smb2.nfs --option=torture:nfs_path=/opt/test --option=torture:nfs_version=4

Guenther

Signed-off-by: Guenther Deschner <gd@samba.org>