Check disk space from a samba share

Here is my problem:

I have a 4GB lacie network disk, which, afaik, does not have snmp not installed nor able to be installed…
Since it is a dumb windows xp embeeded system, i cannot retrieve any information from it (which pissess me off)…
However, i wonder if there is any way i can makenagios just check the smb shares and get the free space values from there directly.
How would you solve this problem?

thanks!

i think there is a check_smb plugin around… if you mount the drive can’t you check it with snmp on the “Mounting” server?