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