from __future__ import division
+import math
import random
import time
-from twisted.internet import defer, error, protocol, reactor
+from twisted.internet import defer, protocol, reactor
from twisted.python import log
import p2pool
from p2pool import data as p2pool_data
-from p2pool.bitcoin import p2p as bitcoin_p2p
from p2pool.bitcoin import data as bitcoin_data
-from p2pool.util import deferral, pack
+from p2pool.util import deferral, p2protocol, pack
-class Protocol(bitcoin_p2p.BaseProtocol):
- version = 2
- sub_version = p2pool.__version__
-
+class PeerMisbehavingError(Exception):
+ pass
+
+class Protocol(p2protocol.Protocol):
def __init__(self, node, incoming):
+ p2protocol.Protocol.__init__(self, node.net.PREFIX, 1000000)
self.node = node
self.incoming = incoming
- self._prefix = self.node.net.PREFIX
-
- max_payload_length = 1000000
- use_checksum = True
-
- other_version = None
- connected2 = False
+ self.other_version = None
+ self.connected2 = False
def connectionMade(self):
- bitcoin_p2p.BaseProtocol.connectionMade(self)
+ p2protocol.Protocol.connectionMade(self)
self.factory.proto_made_connection(self)
self.addr = self.transport.getPeer().host, self.transport.getPeer().port
self.send_version(
- version=self.version,
+ version=4,
services=0,
addr_to=dict(
services=0,
port=self.transport.getHost().port,
),
nonce=self.node.nonce,
- sub_version=self.sub_version,
+ sub_version=p2pool.__version__,
mode=1,
best_share_hash=self.node.best_share_hash_func(),
)
- reactor.callLater(10, self._connect_timeout)
- self.timeout_delayed = reactor.callLater(100, self._timeout)
+ self.timeout_delayed = reactor.callLater(10, self._connect_timeout)
def _connect_timeout(self):
- if not self.connected2 and self.transport.connected:
- print 'Handshake timed out, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
+ self.timeout_delayed = None
+ print 'Handshake timed out, disconnecting from %s:%i' % self.addr
+ self.transport.loseConnection()
def packetReceived(self, command, payload2):
- if command != 'version' and not self.connected2:
- self.transport.loseConnection()
+ try:
+ if command != 'version' and not self.connected2:
+ raise PeerMisbehavingError('first message was not version message')
+ p2protocol.Protocol.packetReceived(self, command, payload2)
+ except PeerMisbehavingError, e:
return
-
- if not self.timeout_delayed.called:
- self.timeout_delayed.cancel()
- self.timeout_delayed = reactor.callLater(100, self._timeout)
-
- bitcoin_p2p.BaseProtocol.packetReceived(self, command, payload2)
+ print 'Peer %s:%i misbehaving, will drop and ban. Reason:' % self.addr, e.message
+ self.badPeerHappened()
- def _timeout(self):
- if self.transport.connected:
- print 'Connection timed out, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
-
- @defer.inlineCallbacks
- def _think(self):
- while self.connected2:
- self.send_ping()
- yield deferral.sleep(random.expovariate(1/100))
+ def badPeerHappened(self):
+ return
+ if p2pool.DEBUG:
+ print "Bad peer banned:", self.addr
+ self.transport.loseConnection()
+ self.node.bans[self.transport.getPeer().host] = time.time() + 60*60
- @defer.inlineCallbacks
- def _think2(self):
- while self.connected2:
- self.send_addrme(port=self.node.port)
- #print 'sending addrme'
- yield deferral.sleep(random.expovariate(1/(100*len(self.node.peers) + 1)))
+ def _timeout(self):
+ self.timeout_delayed = None
+ print 'Connection timed out, disconnecting from %s:%i' % self.addr
+ self.transport.loseConnection()
message_version = pack.ComposedType([
('version', pack.IntType(32)),
('best_share_hash', pack.PossiblyNoneType(0, pack.IntType(256))),
])
def handle_version(self, version, services, addr_to, addr_from, nonce, sub_version, mode, best_share_hash):
- if self.other_version is not None or version < 2:
- self.transport.loseConnection()
- return
+ if self.other_version is not None:
+ raise PeerMisbehavingError('more than one version message')
+ if version < 4:
+ raise PeerMisbehavingError('peer too old')
self.other_version = version
self.other_sub_version = sub_version[:512]
self.other_services = services
if nonce == self.node.nonce:
- #print 'Detected connection to self, disconnecting from %s:%i' % self.addr
- self.transport.loseConnection()
- return
+ raise PeerMisbehavingError('was connected to self')
if nonce in self.node.peers:
- #print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
+ if p2pool.DEBUG:
+ print 'Detected duplicate connection, disconnecting from %s:%i' % self.addr
self.transport.loseConnection()
return
self.nonce = nonce
self.connected2 = True
+
+ self.timeout_delayed.cancel()
+ self.timeout_delayed = reactor.callLater(100, self._timeout)
+
+ old_dataReceived = self.dataReceived
+ def new_dataReceived(data):
+ if self.timeout_delayed is not None:
+ self.timeout_delayed.reset(100)
+ old_dataReceived(data)
+ self.dataReceived = new_dataReceived
+
self.factory.proto_connected(self)
- self._think()
- self._think2()
+ self._stop_thread = deferral.run_repeatedly(lambda: [
+ self.send_ping(),
+ random.expovariate(1/100)][-1])
+
+ self._stop_thread2 = deferral.run_repeatedly(lambda: [
+ self.send_addrme(port=self.node.port),
+ random.expovariate(1/(100*len(self.node.peers) + 1))][-1])
if best_share_hash is not None:
self.node.handle_share_hashes([best_share_hash], self)
count = 100
self.send_addrs(addrs=[
dict(
- timestamp=self.node.addr_store[host, port][2],
+ timestamp=int(self.node.addr_store[host, port][2]),
address=dict(
services=self.node.addr_store[host, port][0],
address=host,
('stops', pack.ListType(pack.IntType(256))),
])
def handle_getshares(self, hashes, parents, stops):
- self.node.handle_get_shares(hashes, parents, stops, self)
+ self.sendShares(self.node.handle_get_shares(hashes, parents, stops, self))
message_shares = pack.ComposedType([
('shares', pack.ListType(p2pool_data.share_type)),
])
def handle_shares(self, shares):
- res = []
- for share in shares:
- share_obj = p2pool_data.Share.from_share(share, self.node.net)
- share_obj.peer = self
- res.append(share_obj)
- self.node.handle_shares(res, self)
-
- def sendShares(self, shares, full=False):
+ self.node.handle_shares([p2pool_data.load_share(share, self.node.net, self) for share in shares if share['type'] not in [6, 7]], self)
+
+ def sendShares(self, shares):
def att(f, **kwargs):
try:
- f(**kwargs)
- except bitcoin_p2p.TooLong:
+ return f(**kwargs)
+ except p2protocol.TooLong:
att(f, **dict((k, v[:len(v)//2]) for k, v in kwargs.iteritems()))
- att(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
+ return att(f, **dict((k, v[len(v)//2:]) for k, v in kwargs.iteritems()))
if shares:
- att(self.send_shares, shares=[share.as_share() for share in shares])
+ return att(self.send_shares, shares=[share.as_share() for share in shares])
+ else:
+ return defer.succeed(None)
+
+
+ message_sharereq = pack.ComposedType([
+ ('id', pack.IntType(256)),
+ ('hashes', pack.ListType(pack.IntType(256))),
+ ('parents', pack.VarIntType()),
+ ('stops', pack.ListType(pack.IntType(256))),
+ ])
+ def handle_sharereq(self, id, hashes, parents, stops):
+ shares = self.node.handle_get_shares(hashes, parents, stops, self)
+ try:
+ self.send_sharereply(id=id, result='good', shares=[share.as_share() for share in shares])
+ except p2protocol.TooLong:
+ self.send_sharereply(id=id, result='too long', shares=[])
+
+ message_sharereply = pack.ComposedType([
+ ('id', pack.IntType(256)),
+ ('result', pack.EnumType(pack.VarIntType(), {0: 'good', 1: 'too long', 2: 'unk2', 3: 'unk3', 4: 'unk4', 5: 'unk5', 6: 'unk6'})),
+ ('shares', pack.ListType(p2pool_data.share_type)),
+ ])
+ def handle_sharereply(self, id, result, shares):
+ self.node.handle_share_reply(id, result, shares, self)
+
+ message_bestblock = pack.ComposedType([
+ ('header', bitcoin_data.block_header_type),
+ ])
+ def handle_bestblock(self, header):
+ self.node.handle_bestblock(header, self)
def connectionLost(self, reason):
+ if self.timeout_delayed is not None:
+ self.timeout_delayed.cancel()
if self.connected2:
- self.factory.proto_disconnected(self)
+ self.factory.proto_disconnected(self, reason)
+ self._stop_thread()
+ self._stop_thread2()
self.connected2 = False
- self.factory.proto_lost_connection(self)
+ self.factory.proto_lost_connection(self, reason)
+ if p2pool.DEBUG:
+ print "Peer connection lost:", self.addr, reason
class ServerFactory(protocol.ServerFactory):
def __init__(self, node, max_conns):
self.node = node
self.max_conns = max_conns
- self.conns = set()
+ self.conns = {}
self.running = False
def buildProtocol(self, addr):
- if len(self.conns) >= self.max_conns:
+ if sum(self.conns.itervalues()) >= self.max_conns or self.conns.get(self._host_to_ident(addr.host), 0) >= 3:
+ return None
+ if addr.host in self.node.bans and self.node.bans[addr.host] > time.time():
return None
p = Protocol(self.node, True)
p.factory = self
+ if p2pool.DEBUG:
+ print "Got peer connection from:", addr
return p
+ def _host_to_ident(self, host):
+ a, b, c, d = host.split('.')
+ return a, b
+
def proto_made_connection(self, proto):
- self.conns.add(proto)
- def proto_lost_connection(self, proto):
- self.conns.remove(proto)
+ ident = self._host_to_ident(proto.transport.getPeer().host)
+ self.conns[ident] = self.conns.get(ident, 0) + 1
+ def proto_lost_connection(self, proto, reason):
+ ident = self._host_to_ident(proto.transport.getPeer().host)
+ self.conns[ident] -= 1
+ if not self.conns[ident]:
+ del self.conns[ident]
def proto_connected(self, proto):
self.node.got_conn(proto)
- def proto_disconnected(self, proto):
- self.node.lost_conn(proto)
+ def proto_disconnected(self, proto, reason):
+ self.node.lost_conn(proto, reason)
def start(self):
assert not self.running
self.running = True
def attempt_listen():
- if not self.running:
- return
- try:
+ if self.running:
self.listen_port = reactor.listenTCP(self.node.port, self)
- except error.CannotListenError, e:
- if e.socketError.errno != 98:
- raise
- print 'P2P port busy, retrying listening in 3 seconds.'
- reactor.callLater(3, attempt_listen)
- attempt_listen()
+ deferral.retry('Error binding to P2P port:', traceback=False)(attempt_listen)()
def stop(self):
assert self.running
self.running = False
- self.listen_port.stopListening()
+ return self.listen_port.stopListening()
class ClientFactory(protocol.ClientFactory):
def __init__(self, node, desired_conns, max_attempts):
self.desired_conns = desired_conns
self.max_attempts = max_attempts
- self.attempts = {}
+ self.attempts = set()
self.conns = set()
self.running = False
+ def _host_to_ident(self, host):
+ a, b, c, d = host.split('.')
+ return a, b
+
def buildProtocol(self, addr):
p = Protocol(self.node, False)
p.factory = self
return p
def startedConnecting(self, connector):
- host, port = connector.getDestination().host, connector.getDestination().port
- if (host, port) in self.attempts:
- raise ValueError('already have attempt')
- self.attempts[host, port] = connector
+ ident = self._host_to_ident(connector.getDestination().host)
+ if ident in self.attempts:
+ raise AssertionError('already have attempt')
+ self.attempts.add(ident)
def clientConnectionFailed(self, connector, reason):
- self.clientConnectionLost(connector, reason)
+ self.attempts.remove(self._host_to_ident(connector.getDestination().host))
def clientConnectionLost(self, connector, reason):
- host, port = connector.getDestination().host, connector.getDestination().port
- if (host, port) not in self.attempts:
- raise ValueError('''don't have attempt''')
- if connector is not self.attempts[host, port]:
- raise ValueError('wrong connector')
- del self.attempts[host, port]
+ self.attempts.remove(self._host_to_ident(connector.getDestination().host))
def proto_made_connection(self, proto):
pass
- def proto_lost_connection(self, proto):
+ def proto_lost_connection(self, proto, reason):
pass
def proto_connected(self, proto):
self.conns.add(proto)
self.node.got_conn(proto)
- def proto_disconnected(self, proto):
+ def proto_disconnected(self, proto, reason):
self.conns.remove(proto)
- self.node.lost_conn(proto)
+ self.node.lost_conn(proto, reason)
def start(self):
assert not self.running
self.running = True
- self._think()
+ self._stop_thinking = deferral.run_repeatedly(self._think)
def stop(self):
assert self.running
self.running = False
+ self._stop_thinking()
- @defer.inlineCallbacks
def _think(self):
- while self.running:
- try:
- if len(self.conns) < self.desired_conns and len(self.attempts) < self.max_attempts and self.node.addr_store:
- (host, port), = self.node.get_good_peers(1)
-
- if (host, port) not in self.attempts:
- #print 'Trying to connect to', host, port
- reactor.connectTCP(host, port, self, timeout=5)
- except:
- log.err()
-
- yield deferral.sleep(random.expovariate(1/1))
+ try:
+ if len(self.conns) < self.desired_conns and len(self.attempts) < self.max_attempts and self.node.addr_store:
+ (host, port), = self.node.get_good_peers(1)
+
+ if self._host_to_ident(host) in self.attempts:
+ pass
+ elif host in self.node.bans and self.node.bans[host] > time.time():
+ pass
+ else:
+ #print 'Trying to connect to', host, port
+ reactor.connectTCP(host, port, self, timeout=5)
+ except:
+ log.err()
+
+ return random.expovariate(1/1)
class SingleClientFactory(protocol.ReconnectingClientFactory):
def __init__(self, node):
def proto_made_connection(self, proto):
pass
- def proto_lost_connection(self, proto):
+ def proto_lost_connection(self, proto, reason):
pass
def proto_connected(self, proto):
self.resetDelay()
self.node.got_conn(proto)
- def proto_disconnected(self, proto):
- self.node.lost_conn(proto)
+ def proto_disconnected(self, proto, reason):
+ self.node.lost_conn(proto, reason)
class Node(object):
def __init__(self, best_share_hash_func, port, net, addr_store={}, connect_addrs=set(), desired_outgoing_conns=10, max_outgoing_attempts=30, max_incoming_conns=50, preferred_storage=1000):
self.nonce = random.randrange(2**64)
self.peers = {}
+ self.bans = {} # address -> end_time
self.clientfactory = ClientFactory(self, desired_outgoing_conns, max_outgoing_attempts)
self.serverfactory = ServerFactory(self, max_incoming_conns)
self.running = False
self.running = True
- self._think2()
+ self._stop_thinking = deferral.run_repeatedly(self._think)
- @defer.inlineCallbacks
- def _think2(self):
- while self.running:
- try:
- if len(self.addr_store) < self.preferred_storage and self.peers:
- random.choice(self.peers.values()).send_getaddrs(count=8)
- except:
- log.err()
-
- yield deferral.sleep(random.expovariate(1/20))
+ def _think(self):
+ try:
+ if len(self.addr_store) < self.preferred_storage and self.peers:
+ random.choice(self.peers.values()).send_getaddrs(count=8)
+ except:
+ log.err()
+
+ return random.expovariate(1/20)
+ @defer.inlineCallbacks
def stop(self):
if not self.running:
raise ValueError('already stopped')
self.running = False
- self.clientfactory.stop()
- self.serverfactory.stop()
+ self._stop_thinking()
+ yield self.clientfactory.stop()
+ yield self.serverfactory.stop()
for singleclientconnector in self.singleclientconnectors:
- singleclientconnector.factory.stopTrying() # XXX will this disconnect a current connection?
+ yield singleclientconnector.factory.stopTrying()
+ yield singleclientconnector.disconnect()
del self.singleclientconnectors
def got_conn(self, conn):
print '%s connection to peer %s:%i established. p2pool version: %i %r' % ('Incoming' if conn.incoming else 'Outgoing', conn.addr[0], conn.addr[1], conn.other_version, conn.other_sub_version)
- def lost_conn(self, conn):
+ def lost_conn(self, conn, reason):
if conn.nonce not in self.peers:
raise ValueError('''don't have peer''')
if conn is not self.peers[conn.nonce]:
raise ValueError('wrong conn')
del self.peers[conn.nonce]
- print 'Lost peer %s:%i' % (conn.addr[0], conn.addr[1])
+ print 'Lost peer %s:%i - %s' % (conn.addr[0], conn.addr[1], reason.getErrorMessage())
def got_addr(self, (host, port), services, timestamp):
def handle_get_shares(self, hashes, parents, stops, peer):
print 'handle_get_shares', (hashes, parents, stops, peer)
+ def handle_share_reply(self, id, result, shares, peer):
+ raise PeerMisbehavingError('sent share reply without being sent a request')
+
+ def handle_bestblock(self, header, peer):
+ print 'handle_bestblock', header
+
def get_good_peers(self, max_count):
t = time.time()
- return [x[0] for x in sorted(self.addr_store.iteritems(), key=lambda (k, (services, first_seen, last_seen)): -(last_seen - first_seen)/max(3600, t - last_seen)*random.expovariate(1))][:max_count]
-
-if __name__ == '__main__':
- p = random.randrange(2**15, 2**16)
- for i in xrange(5):
- p2 = random.randrange(2**15, 2**16)
- print p, p2
- n = Node(p2, True, {addrdb_key.pack(dict(address='127.0.0.1', port=p)): addrdb_value.pack(dict(services=0, first_seen=int(time.time())-10, last_seen=int(time.time())))})
- n.start()
- p = p2
-
- reactor.run()
+ return [x[0] for x in sorted(self.addr_store.iteritems(), key=lambda (k, (services, first_seen, last_seen)):
+ -math.log(max(3600, last_seen - first_seen))/math.log(max(3600, t - last_seen))*random.expovariate(1)
+ )][:max_count]
git://git.novaco.in / p2pool.git / blobdiff