test/functional/disconnect_ban.py

   1 #!/usr/bin/env python3
   2 # Copyright (c) 2014-2016 The Bitcoin Core developers
   3 # Distributed under the MIT software license, see the accompanying
   4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5 """Test node disconnect and ban behavior"""
   6 import time
   7
   8 from test_framework.mininode import wait_until
   9 from test_framework.test_framework import BitcoinTestFramework
  10 from test_framework.util import (assert_equal,
  11                                  assert_raises_jsonrpc,
  12                                  connect_nodes_bi)
  13
  14 class DisconnectBanTest(BitcoinTestFramework):
  15
  16     def __init__(self):
  17         super().__init__()
  18         self.num_nodes = 2
  19         self.setup_clean_chain = False
  20
  21     def run_test(self):
  22         self.log.info("Test setban and listbanned RPCs")
  23
  24         self.log.info("setban: successfully ban single IP address")
  25         assert_equal(len(self.nodes[1].getpeerinfo()), 2)  # node1 should have 2 connections to node0 at this point
  26         self.nodes[1].setban("127.0.0.1", "add")
  27         assert wait_until(lambda: len(self.nodes[1].getpeerinfo()) == 0, timeout=10)
  28         assert_equal(len(self.nodes[1].getpeerinfo()), 0)  # all nodes must be disconnected at this point
  29         assert_equal(len(self.nodes[1].listbanned()), 1)
  30
  31         self.log.info("clearbanned: successfully clear ban list")
  32         self.nodes[1].clearbanned()
  33         assert_equal(len(self.nodes[1].listbanned()), 0)
  34         self.nodes[1].setban("127.0.0.0/24", "add")
  35
  36         self.log.info("setban: fail to ban an already banned subnet")
  37         assert_equal(len(self.nodes[1].listbanned()), 1)
  38         assert_raises_jsonrpc(-23, "IP/Subnet already banned", self.nodes[1].setban, "127.0.0.1", "add")
  39
  40         self.log.info("setban: fail to ban an invalid subnet")
  41         assert_raises_jsonrpc(-30, "Error: Invalid IP/Subnet", self.nodes[1].setban, "127.0.0.1/42", "add")
  42         assert_equal(len(self.nodes[1].listbanned()), 1)  # still only one banned ip because 127.0.0.1 is within the range of 127.0.0.0/24
  43
  44         self.log.info("setban remove: fail to unban a non-banned subnet")
  45         assert_raises_jsonrpc(-30, "Error: Unban failed", self.nodes[1].setban, "127.0.0.1", "remove")
  46         assert_equal(len(self.nodes[1].listbanned()), 1)
  47
  48         self.log.info("setban remove: successfully unban subnet")
  49         self.nodes[1].setban("127.0.0.0/24", "remove")
  50         assert_equal(len(self.nodes[1].listbanned()), 0)
  51         self.nodes[1].clearbanned()
  52         assert_equal(len(self.nodes[1].listbanned()), 0)
  53
  54         self.log.info("setban: test persistence across node restart")
  55         self.nodes[1].setban("127.0.0.0/32", "add")
  56         self.nodes[1].setban("127.0.0.0/24", "add")
  57         # Set the mocktime so we can control when bans expire
  58         old_time = int(time.time())
  59         self.nodes[1].setmocktime(old_time)
  60         self.nodes[1].setban("192.168.0.1", "add", 1)  # ban for 1 seconds
  61         self.nodes[1].setban("2001:4d48:ac57:400:cacf:e9ff:fe1d:9c63/19", "add", 1000)  # ban for 1000 seconds
  62         listBeforeShutdown = self.nodes[1].listbanned()
  63         assert_equal("192.168.0.1/32", listBeforeShutdown[2]['address'])
  64         # Move time forward by 3 seconds so the third ban has expired
  65         self.nodes[1].setmocktime(old_time + 3)
  66         assert_equal(len(self.nodes[1].listbanned()), 3)
  67
  68         self.stop_node(1)
  69
  70         self.nodes[1] = self.start_node(1, self.options.tmpdir)
  71         listAfterShutdown = self.nodes[1].listbanned()
  72         assert_equal("127.0.0.0/24", listAfterShutdown[0]['address'])
  73         assert_equal("127.0.0.0/32", listAfterShutdown[1]['address'])
  74         assert_equal("/19" in listAfterShutdown[2]['address'], True)
  75
  76         # Clear ban lists
  77         self.nodes[1].clearbanned()
  78         connect_nodes_bi(self.nodes, 0, 1)
  79
  80         self.log.info("Test disconnectnode RPCs")
  81
  82         self.log.info("disconnectnode: fail to disconnect when calling with address and nodeid")
  83         address1 = self.nodes[0].getpeerinfo()[0]['addr']
  84         node1 = self.nodes[0].getpeerinfo()[0]['addr']
  85         assert_raises_jsonrpc(-32602, "Only one of address and nodeid should be provided.", self.nodes[0].disconnectnode, address=address1, nodeid=node1)
  86
  87         self.log.info("disconnectnode: fail to disconnect when calling with junk address")
  88         assert_raises_jsonrpc(-29, "Node not found in connected nodes", self.nodes[0].disconnectnode, address="221B Baker Street")
  89
  90         self.log.info("disconnectnode: successfully disconnect node by address")
  91         address1 = self.nodes[0].getpeerinfo()[0]['addr']
  92         self.nodes[0].disconnectnode(address=address1)
  93         assert wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 1, timeout=10)
  94         assert not [node for node in self.nodes[0].getpeerinfo() if node['addr'] == address1]
  95
  96         self.log.info("disconnectnode: successfully reconnect node")
  97         connect_nodes_bi(self.nodes, 0, 1)  # reconnect the node
  98         assert_equal(len(self.nodes[0].getpeerinfo()), 2)
  99         assert [node for node in self.nodes[0].getpeerinfo() if node['addr'] == address1]
 100
 101         self.log.info("disconnectnode: successfully disconnect node by node id")
 102         id1 = self.nodes[0].getpeerinfo()[0]['id']
 103         self.nodes[0].disconnectnode(nodeid=id1)
 104         assert wait_until(lambda: len(self.nodes[0].getpeerinfo()) == 1, timeout=10)
 105         assert not [node for node in self.nodes[0].getpeerinfo() if node['id'] == id1]
 106
 107 if __name__ == '__main__':
 108     DisconnectBanTest().main()