The additions that I have done to the Scenario Generator are

1) Added the QOS functionality to the topo-gen.tcl

2) Added some new procedures in topo-gen.tcl for creating some new data structures(for diffserv and qosr networks) from the topofile.

3) Added some code in the agent-gen.tcl to store all flows that are craeted

4) Added some global variables to the tcl file generated by the agent-gen.tcl that is used for qosr.

5) Added a new tcl file policy-gen.tcl to set up policlies and per-hop behaviours at different links.

6) Added new tcl files qosr-source.tcl, that contains some functions used for qosr and qosr-gen.tcl, that
  is used for implementing qosr.