igor@0: #!/usr/bin/python
igor@0: 
igor@0: 
igor@2: import sys,os,time
igor@0: import xenomips_vars
igor@0: xenomips_vars.N='1'
igor@0: sys.path.append('/etc/xen')
igor@0: from xenomipsN import vbridges_table, hidden_bridges, domains, broken_links, temporary_links, domain_types
igor@0: from IPython.Shell import IPShellEmbed
igor@0: 
igor@2: 
igor@2: screenrc=os.environ['HOME']+"/.screenrc_xentaur"
igor@2: 
igor@0: def create_bridges_script():
igor@0:     unbound_bridges=bridges
igor@0:     create_unbound_bridges="\n".join(map(lambda x: "brctl show | awk '{print $1}' | grep -q "+x+" || brctl addbr "+x, unbound_bridges))
igor@0:     create_unbound_bridges+="\n"+"\n".join(map(lambda x: "ip link set "+x+" up", unbound_bridges))
igor@0: 
igor@0:     print """#!/bin/sh
igor@0: # create unbound bridges
igor@0: %(create_unbound_bridges)s
igor@0: """ % {'create_unbound_bridges' : create_unbound_bridges}
igor@0: 
igor@0: 
igor@0: def create_domains_script():
igor@0:     for N in range(len(domains)):
igor@0:         print "xm create xenomipsN N="+str(N)+" && sleep 1 && xm sched-credit -d $(xm list | grep "+domains[N]+" | awk '{print $2}') -c 10 && sleep 1"
igor@0: 
igor@0: def destroy_domains_script():
igor@0:     for N in range(len(domains)):
igor@0:         print "xm shutdown "+domains[N]
igor@0: 
igor@0: def create_screens_script():
igor@0: 
igor@0:     N=0
igor@0:     screens=[]
igor@0:     for domain in domains:
igor@0:         ip="192.168.80."+str(200+N)
igor@0:         screens.append("screen -t "+domain+"   "+str(N)+" sh -c 'while true; do ssh root@"+ip+" ; done'")
igor@0:         N+=1
igor@0:     screenlist="\n".join(screens)
igor@0: 
igor@0:     print """
igor@0: cat <<SCREENRC > screenrc
igor@2: hardstatus on
igor@2: hardstatus alwayslastline
igor@2: hardstatus string "%{gk}%c %{yk}%M%d %{wk}%?%-Lw%?%{bw}%n*%f%t%?(%u)%?%{wk}%?%+Lw%?"
igor@2: 
igor@0: screen -t console 0 bash
igor@0: %(screenlist)s
igor@0: SCREENRC
igor@0: """ % { 'screenlist' : screenlist }
igor@0: 
igor@0: def graph_node(node):
igor@0:     i=0
igor@0:     domain_type={}
igor@0:     for domain in domains:
igor@0:         domain_type[domain]=domain_types[i]
igor@0:         i+=1
igor@0:     return node+" [label=\"  "+node+"\",shapefile=\"shapes/all/"+domain_type[node]+".png\",fontcolor=navy,fontsize=14]"
igor@0: 
igor@0: def graph():
igor@0:     nodelist=""
igor@0:     bridgelist=""
igor@0:     linklist=""
igor@0:     physicallist=""
igor@0:     networklist=""
igor@0: 
igor@0:     nodelist=";\n    ".join(map(graph_node,nodes))
igor@0:     if nodelist: nodelist += ";"
igor@0: 
igor@0:     bridgelist=";\n    ".join(bridges-set(hidden_bridges))
igor@0:     if bridgelist: bridgelist += ";"
igor@0: 
igor@0:     links=[]
igor@0:     for host, bridges_raw in vbridges_table.iteritems():
igor@0:         i=0
igor@0:         for this_bridge in bridges_raw:
igor@0:             if this_bridge in hidden_bridges:
igor@0:                 continue 
igor@0:             if [ host, this_bridge ] in broken_links:
igor@0:                 links.append(host+" -- "+this_bridge+" [taillabel=\"fa"+str(i)+"/0\",style=dashed]")
igor@0:             else:
igor@0:                 links.append(host+" -- "+this_bridge+" [taillabel=\"fa"+str(i)+"/0\"]")
igor@0:             i+=1
igor@0: 
igor@0:     for link in temporary_links:
igor@0:         links.append(link[0]+" -- "+link[1]+" [color=blue,len=10,w=5,weight=5]")
igor@0: 
igor@0:     linklist=";\n    ".join(links)
igor@0: 
igor@0:     graph_dot = {
igor@0:             'nodelist'      : nodelist,
igor@0:             'bridgelist'    : bridgelist,
igor@0:             'linklist'      : linklist,
igor@0:             'physicallist'  : physicallist,
igor@0:             'networklist'   : networklist,
igor@0:           }
igor@0: 
igor@0:     print """
igor@0:     cat <<'GRAPH' > xenomips.dot
igor@0: graph G {
igor@0:     edge [len=1.25];
igor@0:     splines=true;
igor@0: // nodes
igor@0: 
igor@0:     node [shape=plaintext,color=white,shapefile="shapes/cisco.bmp/router.png"];
igor@0:     %(nodelist)s
igor@0: 
igor@0: // bridges
igor@0: 
igor@0:     node [shape=none,shapefile="shapes/cisco.bmp/switch.png"];
igor@0:     %(bridgelist)s
igor@0: 
igor@0: // physical
igor@0: 
igor@0:     node [shape=rectangle,color=blue];
igor@0:     %(physicallist)s
igor@0: 
igor@0: // networks (not bridges, not physical)
igor@0:     node [shape=rectangle,color=green];
igor@0:     %(networklist)s
igor@0: 
igor@0: // links (between nodes and bridges)
igor@0:     %(linklist)s
igor@0: 
igor@0: };
igor@0: GRAPH
igor@0:     neato -Tpng -o xenomips.png xenomips.dot 
igor@0: """ % graph_dot
igor@0: 
igor@0: def start_all():
igor@0:         create_bridges_script()
igor@0:         create_screens_script()
igor@0:         create_domains_script()
igor@0:         graph()
igor@0:         print """
igor@0:         cat <<NOTE_FOR_USER
igor@0: # To view virtual network map, run:
igor@0:     gqview xenomips.png
igor@0: # To attach to VM consoles, run:
igor@0:     screen -c screenrc
igor@0: NOTE_FOR_USER
igor@0: """
igor@0: 
igor@0: def shell():
igor@0:     ipshell = IPShellEmbed()
igor@0:     ipshell()
igor@0: 
igor@0: def stop_all():
igor@0:         destroy_domains_script(domains)
igor@0: 
igor@0: def show_usage():
igor@0:     print """Usage:
igor@0:     xentaur {start|stop|start-bridges|start-domains|stop-domains|screen|graph}
igor@0: """
igor@0: 
igor@0: #-----------------------------------------------------------------------
igor@0: 
igor@0: def run(program, *args):
igor@0:     pid = os.fork()
igor@0:     if not pid:
igor@0:         os.execvp(program, (program,) +  args)
igor@0:     return os.wait()[0]
igor@0: 
igor@2: def run_command(line):
igor@2:     #cmds=line.split()
igor@2:     #run(cmds[0],*cmds[1:])
igor@2:     run("/bin/sh", "-c", line)
igor@0: 
igor@0: def add_domain(name,type):
igor@0:     domains.append(name)
igor@0:     domain_types.append(type)
igor@0: 
igor@0: def brake_link(domain,bridge):
igor@0:     broken_links.append([domain,bridge])
igor@0: 
igor@2: def write_to(screen,string):
igor@2:     """
igor@2:     write_to(screen,string):
igor@2: 
igor@2:         Type *string* to the screen with the number *screen*
igor@2: 
igor@2:     """
igor@2:     screen_number=screen
igor@2:     f=open('/tmp/xentaurbuf', 'w')
igor@2:     f.write(string)
igor@2:     f.close()
igor@0:     run_command("screen -X readreg p /tmp/xentaurbuf")
igor@2:     run_command("screen -X select "+str(screen_number))
igor@2:     run_command("nohup screen -X paste p >& /dev/null")
igor@2:     time.sleep(0.05)
igor@0:     run_command("screen -X select 0")
igor@0: 
igor@0: #-----------------------------------------------------------------------
igor@0: 
igor@0: bridges=[]
igor@0: for domain in vbridges_table.keys():
igor@0:     bridges += set(vbridges_table[domain])
igor@0: bridges=set(bridges)
igor@0: 
igor@0: nodes=domains
igor@0: 
igor@0: if len(sys.argv) > 1:
igor@0:     if sys.argv[1] == 'start':
igor@0:         start_all()
igor@0:     if sys.argv[1] == 'stop':
igor@0:         stop_all()
igor@0:     if sys.argv[1] == 'start-bridges':
igor@0:         create_bridges_script(bridges)
igor@0:     if sys.argv[1] == 'start-domains':
igor@0:         create_domains_script(domains)
igor@0:     if sys.argv[1] == 'stop-domains':
igor@0:         destroy_domains_script(domains)
igor@0:     elif sys.argv[1] == 'screen':
igor@0:         create_screens_script(domains)
igor@0:     elif sys.argv[1] == 'graph':
igor@0:         graph()
igor@0:     elif sys.argv[1] == 'shell':
igor@0:         shell()
igor@0: 
igor@0: else:
igor@0:     show_usage()
igor@0:     sys.exit(1)
igor@0: 
igor@0: sys.exit(0)
igor@0: 
igor@0: