= Miscellaneous scripts. = Here you can find various hacky scripts made for various purposes, that may or may not be useful. === pingmapper === A Ruby script that uses SSH to log into each imaged node and 1. sets the data plane interface address to 192.168.x.y, where the node is nodex-y, 1. pings the arbitrary address 192.168.0.1 1. fetches the HW address of each node The output of this script is a list of [x,y] : HWaddr pairs that can be compared with the MAC address table in a switch to determine which port a node lives on. The script forces the switch to populate its table by pinging the nonexistent address. The syntax is: {{{ ruby pingmapper.rb [MAX_X] [MAX_Y] }}} Where the script is run from a sandbox console and MAX_X and MAX_Y are the largest x and y for a node's ID. === gridmap === A collection of Ruby functions that can be clobbered together into a mapping script. For example: {{{ require "gridmap.rb" puts "enter node ID as \"x1,y1; x2,y2;...\"\n" puts "enter \"quit\" to exit\n" g = Grid.new nodes = nil while nodes = gets.chomp.split(';') break if nodes.first == "quit" nodes.each do |el| r,c = *(el.split(',')) p g.switch_of(r.to_i,c.to_i) end end }}} Returns a [switch, switchport] mapping for a node [x,y], or list of nodes x1,y1;x2,y2...: {{{ # ruby sample.rb enter node ID as "x1,y1; x2,y2;..." enter "quit" to exit 1,1 [253, 32] 1,2 [8, 39] 20,20;19,19 [1, 2] [1, 44] quit }}} The functions assume underlying wires are there correctly, so it is not 100% accurate. This is for hipshot guesstimates when you don't need exact locations and want them fast.