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