xentaur

annotate xentaur.py @ 60:e7b9761c03e8

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info() + logo()
author igor
date Sun Nov 11 20:57:50 2007 +0200 (2007-11-11)
parents 308b524d9a70
children 6471afbee150
rev   line source
igor@0 1 #!/usr/bin/python
igor@60 2 # vim: set fileencoding=utf-8 :
igor@0 3
igor@2 4 import sys,os,time
igor@35 5
igor@35 6 xentaur_path=os.environ['HOME']+"/xentaur"
igor@35 7
igor@0 8 sys.path.append('/etc/xen')
igor@35 9 sys.path.append(xentaur_path)
igor@11 10
igor@56 11 #network='snrs_ipsec_rsa_1'
igor@56 12 node_object={}
igor@56 13 link_object={}
igor@56 14 bridge_object={}
igor@56 15
igor@56 16 network='icnd2'
igor@56 17 domain='sw1'
igor@35 18 from xendomain import *
igor@35 19
igor@29 20 bridges_turned_down=[]
igor@29 21
igor@0 22 from IPython.Shell import IPShellEmbed
igor@0 23
igor@2 24
igor@2 25 screenrc=os.environ['HOME']+"/.screenrc_xentaur"
igor@2 26
igor@10 27 def run(program, *args):
igor@10 28 pid = os.fork()
igor@10 29 if not pid:
igor@10 30 os.execvp(program, (program,) + args)
igor@10 31 return os.wait()[0]
igor@10 32
igor@10 33 def run_command(line):
igor@10 34 #cmds=line.split()
igor@10 35 #run(cmds[0],*cmds[1:])
igor@10 36 run("/bin/sh", "-c", line)
igor@10 37
igor@23 38 def run_command_return_stdout(line):
igor@23 39 p = os.popen(line)
igor@23 40 output = p.read()
igor@23 41 p.close()
igor@23 42 return output
igor@23 43
igor@49 44 ################################################################################
igor@49 45 #Xentaur command-line commands
igor@49 46
igor@49 47 ## Start
igor@49 48
igor@49 49 def start_bridges():
igor@38 50 unbound_bridges=set(bridges)-set(real_bridges)
igor@56 51 script=""
igor@56 52 script="\n".join(map(lambda x: "sudo brctl show | awk '{print $1}' | grep -qx "+x+" || sudo brctl addbr "+x, unbound_bridges))
igor@56 53 script+="\n"+"\n".join(map(lambda x: "sudo brctl stp "+x+" off", unbound_bridges))
igor@56 54 script+="\n"+"\n".join(map(lambda x: "sudo ip link set "+x+" up", unbound_bridges))
igor@0 55
igor@0 56 print """#!/bin/sh
igor@0 57 # create unbound bridges
igor@56 58 %s
igor@56 59 """ % (script)
igor@0 60
igor@49 61 def start_domain(domain):
igor@49 62 print "sudo xm create "+xentaur_path+"/xendomain.py "+" domain="+domain+" network="+network+" && sleep 1 && sudo xm sched-credit -d $(sudo xm list | grep "+domain+" | awk '{print $2}') -c 10 && sleep 1"
igor@0 63
igor@49 64 def start_domains(doms=domains):
igor@49 65 for domain in doms:
igor@38 66 if not domain in real_nodes:
igor@49 67 start_domain(domain)
igor@0 68
igor@49 69 def start_all():
igor@49 70 graph()
igor@49 71 screen()
igor@49 72 start_bridges()
igor@49 73 start_domains()
igor@49 74
igor@49 75 ## Stop
igor@49 76
igor@49 77 def stop_domain(domain,wait=0):
igor@49 78 if wait:
igor@49 79 print "sudo xm shutdown -w "+domain
igor@49 80 else:
igor@49 81 print "sudo xm shutdown "+domain
igor@49 82
igor@49 83 def stop_domains(doms=domains, wait=0):
igor@49 84 for domain in doms:
igor@38 85 if not domain in real_nodes:
igor@49 86 stop_domain(domain,wait)
igor@0 87
igor@49 88 def stop_bridges():
igor@49 89 ###FIXME###
igor@49 90 return 0
igor@49 91
igor@49 92 def stop_all(wait=0):
igor@49 93 stop_domains(domains, wait)
igor@49 94 stop_bridges()
igor@49 95
igor@49 96 def restart_all():
igor@49 97 stop_all(1)
igor@49 98 start_all()
igor@49 99
igor@56 100 ####################################################
igor@56 101
igor@56 102 def create_objects():
igor@56 103 create_node_objects()
igor@56 104 create_bridge_objects()
igor@56 105 create_link_objects()
igor@56 106
igor@56 107 def create_node_objects():
igor@56 108 for dom in domains:
igor@56 109 node_object[dom]=Node(dom)
igor@56 110
igor@56 111 def create_bridge_objects():
igor@56 112 for bridge in bridges:
igor@56 113 bridge_object[bridge]=Bridge(bridge)
igor@56 114
igor@56 115 def create_link_objects():
igor@56 116
igor@56 117 for node, bridges_raw in vbridges_table.iteritems():
igor@56 118 interface=0
igor@56 119 j=0
igor@56 120 for this_bridge in bridges_raw:
igor@56 121 int_label=""
igor@56 122 if this_bridge.find(':') != -1:
igor@56 123 res = this_bridge.split(':')
igor@56 124 this_bridge= res[0]
igor@56 125 bridges_raw[j] = this_bridge
igor@56 126 int_label = res[1]
igor@56 127 if not [ node, bridges_raw.index(this_bridge), this_bridge ] in temporary_links:
igor@56 128 name="%s %s %s" % (node,interface,this_bridge)
igor@56 129 link_object[name]=Link(name,node,interface,this_bridge,int_label)
igor@56 130 interface+=1
igor@56 131 vbridges_table[node]=bridges_raw
igor@56 132
igor@56 133 for node, bridges_raw in bridge_bridge_table.iteritems():
igor@56 134 interface=0
igor@56 135 j=0
igor@56 136 for this_bridge in bridges_raw:
igor@56 137 int_label=""
igor@56 138 if this_bridge.find(':') != -1:
igor@56 139 res = this_bridge.split(':')
igor@56 140 this_bridge= res[0]
igor@56 141 bridges_raw[j] = this_bridge
igor@56 142 int_label = res[1]
igor@56 143 if not [ node, bridges_raw.index(this_bridge), this_bridge ] in temporary_links:
igor@56 144 name="%s %s %s" % (node,interface,this_bridge)
igor@56 145 link_object[name]=Link(name,node,interface,this_bridge,int_label)
igor@56 146 interface+=1
igor@56 147 bridge_bridge_table[node]=bridges_raw
igor@56 148
igor@56 149 for node,interface,bridge in temporary_links:
igor@56 150 name="%s %s %s" % (node,interface,bridge)
igor@56 151 link_object[name]=Link(name,node,interface,this_bridge)
igor@56 152
igor@56 153 for node,interface,bridge in broken_links:
igor@56 154 name="%s %s %s" % (node,interface,bridge)
igor@56 155 link_object[name]=Link(name,node,interface,this_bridge)
igor@56 156
igor@56 157
igor@56 158 ####################################################
igor@56 159
igor@49 160 def screen():
igor@60 161 wait_seconds=1
igor@0 162 screens=[]
igor@0 163 for domain in domains:
igor@56 164 screens.append("screen -t %s %s sh -c 'while true; do %s ; echo Retrying in %s secods...; sleep %s ; clear; done'" %
igor@60 165 (domain,domains.index(domain)+1,node_object[domain].console_string(),wait_seconds,wait_seconds))
igor@0 166 screenlist="\n".join(screens)
igor@0 167
igor@49 168 hardstatus='hardstatus string "%{rk}Xentaur%{bk}@%H %{gk}%c %{yk}%d.%m %{wk}%?%-Lw%?%{bw}%n*%f%t%?(%u)%?%{wk}%?%+Lw%?"'
igor@10 169
igor@11 170 f=open(screenrc, "w");
igor@10 171 f.write("""
igor@2 172 hardstatus on
igor@2 173 hardstatus alwayslastline
igor@49 174 %s
igor@2 175
igor@60 176 screen -t console 0 sh -c 'while true; do cd %s; ./xentaur.py shell ; echo Retrying in %s secods...; sleep %s ; clear; done'
igor@60 177 #screen -t xentaur - sh -c 'while true; do bash ; echo Retrying in %s secods...; sleep %s ; clear; done'
igor@10 178 %s
igor@60 179 """ % (hardstatus,xentaur_path,wait_seconds,wait_seconds,wait_seconds,wait_seconds,screenlist))
igor@10 180 f.close()
igor@49 181 print "# GNU Screen config file is written to: %s" % screenrc
igor@0 182
igor@0 183 def graph():
igor@0 184 nodelist=""
igor@0 185 bridgelist=""
igor@0 186 linklist=""
igor@0 187 physicallist=""
igor@0 188 networklist=""
igor@0 189
igor@56 190 nodelist=";\n ".join(map(lambda node: node_object[node].graphviz_string(),nodes))
igor@0 191 if nodelist: nodelist += ";"
igor@56 192 bridgelist=";\n ".join(map(lambda bridge: bridge_object[bridge].graphviz_string(),bridges))
igor@0 193 if bridgelist: bridgelist += ";"
igor@56 194 linklist=";\n ".join(map(lambda link: link_object[link].graphviz_string(),link_object.keys()))
igor@56 195 if linklist: linklist += ";"
igor@0 196
igor@46 197 f = open(network+".dot", "w");
igor@10 198 f.write ("""
igor@0 199 graph G {
igor@0 200 edge [len=1.25];
igor@0 201 splines=true;
igor@0 202 // nodes
igor@56 203 // node [shape=plaintext,color=white,shapefile="shapes/cisco.bmp/router.png"];
igor@56 204 %s
igor@0 205
igor@0 206 // bridges
igor@56 207 // node [shape=none,shapefile="shapes/all/switch.png"];
igor@56 208 %s
igor@0 209
igor@0 210 // physical
igor@0 211 node [shape=rectangle,color=blue];
igor@56 212 %s
igor@0 213
igor@0 214 // networks (not bridges, not physical)
igor@0 215 node [shape=rectangle,color=green];
igor@56 216 %s
igor@0 217
igor@0 218 // links (between nodes and bridges)
igor@56 219 %s
igor@0 220
igor@0 221 };
igor@56 222 """ % (nodelist, bridgelist, physicallist, networklist, linklist))
igor@10 223 f.close()
igor@46 224 run_command("neato -Tpng -o %s.png %s.dot "%(network,network))
igor@46 225 run_command("neato -Tjpg -o %s.jpg %s.dot "%(network,network))
igor@46 226 run_command("neato -Tsvg -o %s.svg %s.dot "%(network,network))
igor@56 227 run_command("neato -Tcmapx -o %s.cmapx -NURL=http://google.com %s.dot "%(network,network))
igor@49 228 print "# Network map is written to files: %s.{png,svg,jpg,dot}" % network
igor@0 229
igor@27 230 def autoredraw():
igor@27 231 graph()
igor@27 232
igor@0 233 def shell():
nata@31 234 autoredraw()
igor@0 235 ipshell = IPShellEmbed()
igor@0 236 ipshell()
igor@0 237
igor@60 238 def version():
igor@60 239 print "Xentaur 0.1-PRE"
igor@60 240 print "(Godzilla-mutant) _"
igor@60 241 print " / * \\"
igor@60 242 print " / .-"
igor@60 243 print " / |"
igor@60 244 print " | \\ \\\\ \\"
igor@60 245 print " _ -------| \\ \\\\ \\"
igor@60 246 print " / / \\_\\ -"
igor@60 247 print "/ |\\ | |"
igor@60 248 print "| | \\ .-----. | \\ |"
igor@60 249 print " | / \\ \\ \\ \\"
igor@60 250 print " \\/|.\\ \\ \\ \\ \\"
igor@60 251 print " \\| - . \\_\\ \\_\\"
igor@60 252 print "-----------------------------------------------"
igor@60 253
igor@60 254
igor@60 255 def info():
igor@60 256 version()
igor@60 257
igor@60 258 print "Network name: ", network
igor@60 259 print "-----------------------------------------------"
igor@60 260 print
igor@60 261 print "Nodes: ", len(domains)
igor@60 262 print " * virtual nodes: ", len(domains)-len(real_nodes)
igor@60 263 print " * real nodes:", len(real_nodes)
igor@60 264 print
igor@60 265 print "Bridges:", len(bridges)
igor@60 266 print " * virtual bridges:", len(bridges)-len(real_bridges)-len(cross_bridges)
igor@60 267 print " * real switches:", len(real_bridges)
igor@60 268 print " * direct links:", len(cross_bridges)
igor@60 269
igor@0 270 def show_usage():
igor@0 271 print """Usage:
igor@49 272 xentaur <command> [<argument>]
igor@49 273
igor@49 274 Commands:
igor@49 275 start-all -- start bridges and domains
igor@49 276 start-domains -- start domains only
igor@49 277 start-bridges -- start bridges only
igor@49 278 stop-all -- stop bridges and domains
igor@49 279 stop-domains -- stop domains only
igor@49 280 stop-bridges -- stop bridges only (domains have to be stopped already)
igor@49 281 restart-all -- restart bridges and domains
igor@49 282
igor@49 283 start <domain> -- start the <domain>
igor@49 284 stop <domain> -- stop the <domain>
igor@49 285
igor@49 286 graph -- generate network scheme (result is in <network>.{png,jpg,svg})
igor@49 287 screen -- generate GNU Screen config file (~/.screenrc_xentaur)
igor@49 288 shell -- run Xentaur shell
igor@49 289
igor@0 290 """
igor@0 291
igor@33 292 def save():
igor@33 293 print "network =", xen_config_name
igor@33 294 print "domains =", domains
igor@33 295 print "domain_types =", domain_types
igor@33 296 print "bridges =", bridges
igor@33 297 print "vbridges_table =", vbridges_table
igor@33 298 print "hidden_bridges =", hidden_bridges
igor@33 299 print "broken_links =", broken_links
igor@33 300 print "temporary_links =", temporary_links
igor@33 301 print "bridges_turned_down =", bridges_turned_down
igor@33 302
igor@33 303 #-----------------------------------------------------------------------
igor@33 304 # CLASSES
igor@33 305
igor@33 306 class Bridge:
igor@33 307 def __init__ (self,name):
igor@33 308 self.name=name
igor@33 309 def up(self):
igor@33 310 bridge_up(self.name)
igor@33 311 def down(self):
igor@33 312 bridge_down(self.name)
igor@33 313 def show(self):
igor@33 314 show_bridge(self.name)
igor@33 315 def dump_start(self,filter=""):
igor@33 316 dump_start(self.name,filter)
igor@33 317
igor@56 318 def is_hidden(self):
igor@56 319 return self.name in hidden_bridges
igor@56 320 def is_real(self):
igor@56 321 return self.name in real_bridges
igor@56 322 def is_turned_down(self):
igor@56 323 return self.name in bridges_turned_down
igor@56 324 def is_cross(self):
igor@56 325 return self.name in cross_bridges
igor@33 326
igor@56 327 def graphviz_string(self):
igor@56 328 if self.is_hidden():
igor@56 329 return ""
igor@56 330 elif self.is_cross():
igor@56 331 return "%s [shape=circle,height=0.03,color=black,fillcolor=black,style=filled,label=\"\"]" % (self.name)
igor@56 332 elif self.is_real():
igor@56 333 return "%s [color=white,shape=none,shapefile=\"shapes/all/real_switch.png\"]" % (self.name)
igor@56 334 elif self.is_turned_down():
igor@56 335 return "%s [color=white,shape=none,shapefile=\"shapes/all/switch_turned_down.png\"]" % (self.name)
igor@56 336 else:
igor@56 337 return "%s [color=white,shape=none,shapefile=\"shapes/all/switch.png\"]" % (self.name)
igor@56 338
igor@56 339
igor@56 340 class Node:
igor@38 341 def __init__ (self,name):
igor@38 342 self.name=name
igor@56 343 self.type=domain_types[domains.index(name)]
igor@38 344 def start(self):
igor@38 345 return ""
igor@38 346 def stop(self):
igor@38 347 return ""
igor@38 348 def start_commandline(self):
igor@38 349 return ""
igor@38 350 def get_domain_id(self):
igor@38 351 return get_domain_id(self.name)
igor@56 352 def graphviz_string(self):
igor@56 353 return self.name+" [color=white,shape=plaintext,label=\" "+self.name+"\",shapefile=\"shapes/all/"+\
igor@56 354 domain_types[domains.index(self.name)]+".png\",fontcolor=black,fontsize=16,target=\"http://google.com\"]"
igor@56 355 def console_string(self):
igor@56 356 if self.type == 'quagga' or self.type == 'xenomips':
igor@56 357 return "sudo xm console "+self.name
igor@56 358 elif self.name in real_bridges or self.name in real_nodes:
igor@56 359 return "echo Press enter to connect; read line; "+connection_table[self.name]
igor@56 360
igor@56 361
igor@56 362 class Link:
igor@56 363 def __init__ (self,name,node,interface,bridge,label=""):
igor@56 364 self.name=name
igor@56 365 self.node=node
igor@56 366 self.interface=interface
igor@56 367 self.bridge=bridge
igor@56 368 self.label=label
igor@56 369
igor@56 370 def is_temporary(self):
igor@56 371 return [self.node,self.interface,self.bridge] in temporary_links
igor@56 372
igor@56 373 def is_broken(self):
igor@56 374 return ([self.node,self.interface,self.bridge] in broken_links)
igor@56 375
igor@56 376 def graphviz_string(self):