I've made a local tile server (mapnik + postgis + tilecache).
Now i need to make use of some editing tool so that only newly created layer can be edited: users of this tool shouldn't have rights to edit "base" geographic layer (in order not to spoil it).
I'll try to explain my workflow better: i want to allow users create and edit some specific objects on the map (parts of network infrastructure i.e. routers, optic lines and so on), but the critical feature is to prevent users from editing the geographic map.
So, in short, they shoud only be able to edit the layer with our data, but not the data from openstreetmpas (i still need it for being able to update it).
JOSM for now, but how can i disable base layer editing?