All possible path in a network

hello all, I want to find an algorithm that finds all possible path lengths from the other nodes to specifically node 1in the network. I already know about dijkstra's algorithm for finding the shortest path length, what I need is an algorithm that tells me all the possible paths that can be taken without going through the same node more than once for each path, I have attached a picture of my network just to give you a visual of what am working with.  can anyone help me