def sort_routers(self, sorted_routers):
routers = copy.copy(sorted_routers)
def ratio_cmp(r1, r2):
if r1.bw / float(r1.desc_bw) > r2.bw / float(r2.desc_bw):
return -1
elif r1.bw / float(r1.desc_bw) < r2.bw / float(r2.desc_bw):
return 1
else:
return 0
if self.speed == "fast":
pass # no action needed
elif self.speed == "slow":
routers.reverse()
elif self.speed == "fastratio":
routers.sort(ratio_cmp)
elif self.speed == "slowratio":
routers.sort(lambda x, y: ratio_cmp(y, x))
# Print top 5 routers + ratios
for i in xrange(5):
TorUtil.plog(
"DEBUG",
self.speed + " router " + routers[i].nickname + " #" + str(i) +
": " + str(routers[i].bw) + "/" + str(routers[i].desc_bw) +
" = " + str(routers[i].bw / float(routers[i].desc_bw)))
return routers
def sort_routers(self, sorted_routers):
routers = copy.copy(sorted_routers)
def ratio_cmp(r1, r2):
if r1.bw/float(r1.desc_bw) > r2.bw/float(r2.desc_bw):
return -1
elif r1.bw/float(r1.desc_bw) < r2.bw/float(r2.desc_bw):
return 1
else:
return 0
if self.speed == "fast":
pass # no action needed
elif self.speed == "slow":
routers.reverse()
elif self.speed == "fastratio":
routers.sort(ratio_cmp)
elif self.speed == "slowratio":
routers.sort(lambda x,y: ratio_cmp(y,x))
# Print top 3 routers + ratios
if len(routers) < SAMPLE_SIZE:
TorUtil.plog("WARN", "Only "+str(len(routers))+" in our list!")
else:
for i in xrange(SAMPLE_SIZE):
TorUtil.plog("INFO", self.speed+" router "+routers[i].nickname+" #"+str(i)+": "
+str(routers[i].bw)+"/"+str(routers[i].desc_bw)+" = "
+str(routers[i].bw/float(routers[i].desc_bw)))
return routers
def sort_routers(self, sorted_routers):
routers = copy.copy(sorted_routers)
def ratio_cmp(r1, r2):
if r1.bw/float(r1.desc_bw) > r2.bw/float(r2.desc_bw):
return -1
elif r1.bw/float(r1.desc_bw) < r2.bw/float(r2.desc_bw):
return 1
else:
return 0
if self.speed == "fast":
pass # no action needed
elif self.speed == "slow":
routers.reverse()
elif self.speed == "fastratio":
routers.sort(ratio_cmp)
elif self.speed == "slowratio":
routers.sort(lambda x,y: ratio_cmp(y,x))
# Print top 5 routers + ratios
for i in xrange(5):
TorUtil.plog("DEBUG", self.speed+" router "+routers[i].nickname+" #"+str(i)+": "
+str(routers[i].bw)+"/"+str(routers[i].desc_bw)+" = "
+str(routers[i].bw/float(routers[i].desc_bw)))
return routers
def new_desc_event(self, n):
TorCtl.ConsensusTracker.new_desc_event(self, n)
if self.need_guards and self.consensus_count >= DESCRIPTORS_NEEDED*len(self.ns_map):
TorUtil.plog("INFO", "We have enough routers. Rejoice!")
self.used_entries = []
self.set_entries()
self.need_guards = False
else:
self.need_guards = True
def __init__(self, conn, speed):
TorCtl.ConsensusTracker.__init__(self, conn, consensus_only=False)
self.speed = speed
self.used_entries = []
if self.consensus_count < DESCRIPTORS_NEEDED*len(self.ns_map):
TorUtil.plog("NOTICE",
"Insufficient routers to choose new guard. Waiting for more..")
self.need_guards = True
else:
self.set_entries()
self.need_guards = False
def set_entries(self):
# XXX: This is inefficient, but if we do it now, we're sure that
# we're always using the very latest networkstatus and descriptor data
sorted_routers = self.sort_routers(self.current_consensus().sorted_r)
entry_nodes = []
for i in xrange(len(sorted_routers)):
if len(entry_nodes) >= SAMPLE_SIZE: break
if (not sorted_routers[i].down and "Guard" in sorted_routers[i].flags):
entry_nodes.append(sorted_routers[i].idhex)
self.used_entries.append(sorted_routers[i].idhex)
self.c.set_option("EntryNodes", ",".join(entry_nodes))
TorUtil.plog("NOTICE", self.speed+": Changed EntryNodes to: " +
",".join(map(lambda x: self.ns_map[x].nickname+"="+x,
entry_nodes)))
def stream_status_event(self, event):
if event.status == "NEW":
if event.purpose != "USER":
self.ignore_streams[event.strm_id] = True
return
if event.strm_id in self.ignore_streams:
if event.status == "CLOSED":
del self.ignore_streams[event.strm_id]
return
if event.circ_id not in self.all_circs:
if event.circ_id:
TorUtil.plog("WARN",
"Unknown circuit id %d has a stream event %d %s" % \
(event.circ_id, event.strm_id, event.status))
return
circ = self.all_circs[event.circ_id]
if event.status == 'DETACHED' or event.status == 'FAILED':
# Detached usually means there was some failure
assert not circ.strm_id
circ.used = True
circ.strm_id = event.strm_id
circ.stream_failed = True
circ.stream_end_time = event.arrived_at
if event.reason:
circ.stream_fail_reason = event.reason
if event.remote_reason:
circ.stream_fail_reason += ":"+event.remote_reason
self.write_circ(circ)
# We have no explicit assurance here that tor will not
# try to reuse this circuit later... But we should
# print out a warn above if that happens.
del self.all_circs[event.circ_id]
# Some STREAM FAILED events are paired with a CLOSED, some are not :(
if event.status == "FAILED":
self.ignore_streams[event.strm_id] = True
if event.status == 'CLOSED':
assert not circ.strm_id or circ.stream_failed
circ.used = True
circ.strm_id = event.strm_id
circ.stream_end_time = event.arrived_at
self.write_circ(circ)
del self.all_circs[event.circ_id]
def main():
if len(sys.argv) < 3:
usage()
return
port = int(sys.argv[1])
speed = sys.argv[2]
if not speed in ("fast", "slow", "fastratio", "slowratio"):
TorUtil.plog("ERROR",
"Second parameter must be 'fast', 'slow', 'fastratio', or 'slowratio'")
return
conn = TorCtl.connect(HOST, port)
conn.set_option("StrictEntryNodes", "1")
conn.set_option("UseEntryNodes", "1")
EntryTracker(conn, speed)
conn.set_events(["NEWCONSENSUS", "NEWDESC", "NS", "GUARD"])
conn.block_until_close()
def handle_entry_deaths(self, event):
state = event.status
if (state == "DOWN" or state == "BAD" or state == "DROPPED"):
if self.consensus_count < DESCRIPTORS_NEEDED*len(self.ns_map):
self.need_guards = True
TorUtil.plog("NOTICE",
"Insufficient routers to choose new guard. Waiting for more..")
return
nodes_tuple = self.c.get_option("EntryNodes")
nodes_list = nodes_tuple[0][1].split(",")
try:
nodes_list.remove(event.idhex)
nodes_list.append(self.get_next_guard())
self.c.set_option("EntryNodes", ",".join(nodes_list))
TorUtil.plog("NOTICE", "Entry: " + event.nick + ":" + event.idhex +
" died, and we replaced it with: " + nodes_list[-1] + "!")
nodes_tuple = self.c.get_option("EntryNodes")
nodes_list = nodes_tuple[0][1]
TorUtil.plog("INFO", "New nodes_list: " + nodes_list)
except ValueError:
TorUtil.plog("INFO", "GUARD event notified of an entry death that " +
"is not in nodes_list! Mysterioush!")
TorUtil.plog("INFO", "It was: " + event.nick + " : " + event.idhex)
def handle_entry_deaths(self, event):
state = event.status
if (state == "DOWN" or state == "BAD" or state == "DROPPED"):
nodes_tuple = self.c.get_option("EntryNodes")
nodes_list = nodes_tuple[0][1].split(",")
try:
nodes_list.remove(event.idhex)
nodes_list.append(self.get_next_router(event.idhex, nodes_list))
self.c.set_option("EntryNodes", ",".join(nodes_list))
TorUtil.plog("NOTICE", "Entry: " + event.nick + ":" + event.idhex +
" died, and we replaced it with: " + nodes_list[-1] + "!")
nodes_tuple = self.c.get_option("EntryNodes")
nodes_list = nodes_tuple[0][1]
TorUtil.plog("INFO", "New nodes_list: " + nodes_list)
except ValueError:
TorUtil.plog("INFO", "GUARD event notified of an entry death that " +
"is not in nodes_list! Mysterioush!")
TorUtil.plog("INFO", "It was: " + event.nick + " : " + event.idhex)
def handle_entry_deaths(self, event):
state = event.status
if (state == "DOWN" or state == "BAD" or state == "DROPPED"):
nodes_tuple = self.c.get_option("EntryNodes")
nodes_list = nodes_tuple[0][1].split(",")
try:
nodes_list.remove(event.idhex)
nodes_list.append(self.get_next_router(event.idhex,
nodes_list))
self.c.set_option("EntryNodes", ",".join(nodes_list))
TorUtil.plog(
"NOTICE", "Entry: " + event.nick + ":" + event.idhex +
" died, and we replaced it with: " + nodes_list[-1] + "!")
nodes_tuple = self.c.get_option("EntryNodes")
nodes_list = nodes_tuple[0][1]
TorUtil.plog("INFO", "New nodes_list: " + nodes_list)
except ValueError:
TorUtil.plog(
"INFO", "GUARD event notified of an entry death that " +
"is not in nodes_list! Mysterioush!")
TorUtil.plog("INFO",
"It was: " + event.nick + " : " + event.idhex)
def new_consensus_event(self, n):
TorCtl.ConsensusTracker.new_consensus_event(self, n)
TorUtil.plog("INFO", "New consensus arrived. Rejoice!")
self.used_entries = []
self.set_entries()
def new_consensus_event(self, n):
TorCtl.ConsensusTracker.new_consensus_event(self, n)
TorUtil.plog("INFO", "New consensus arrived. Rejoice!")
self.used_entries = []
self.set_entries()
