1#!/usr/bin/env python 2# - 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2020 Alexander V. Chernikov 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28# 29 30 31from functools import partial 32import socket 33import select 34import argparse 35import time 36 37 38def parse_args(): 39 parser = argparse.ArgumentParser(description='divert socket tester') 40 parser.add_argument('--sip', type=str, default='', help='IP to listen on') 41 parser.add_argument('--family', type=str, help='inet/inet6') 42 parser.add_argument('--ports', type=str, help='packet ports 1,2,3') 43 parser.add_argument('--match_str', type=str, help='match string to use') 44 parser.add_argument('--count', type=int, default=1, 45 help='Number of messages to receive') 46 parser.add_argument('--test_name', type=str, required=True, 47 help='test name to run') 48 return parser.parse_args() 49 50 51def test_listen_tcp(args): 52 if args.family == 'inet6': 53 fam = socket.AF_INET6 54 else: 55 fam = socket.AF_INET 56 sockets = [] 57 ports = [int(port) for port in args.ports.split(',')] 58 for port in ports: 59 s = socket.socket(fam, socket.SOCK_STREAM) 60 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) 61 s.setblocking(0) 62 s.bind((args.sip, port)) 63 print('binding on {}:{}'.format(args.sip, port)) 64 s.listen(5) 65 sockets.append(s) 66 inputs = sockets 67 count = 0 68 while count < args.count: 69 readable, writable, exceptional = select.select(inputs, [], inputs) 70 for s in readable: 71 (c, address) = s.accept() 72 print('C: {}'.format(address)) 73 data = c.recv(9000) 74 if args.match_str and args.match_str.encode('utf-8') != data: 75 raise Exception('Expected "{}" but got "{}"'.format( 76 args.match_str, data.decode('utf-8'))) 77 count += 1 78 c.close() 79 80 81def test_listen_udp(args): 82 if args.family == 'inet6': 83 fam = socket.AF_INET6 84 else: 85 fam = socket.AF_INET 86 sockets = [] 87 ports = [int(port) for port in args.ports.split(',')] 88 for port in ports: 89 s = socket.socket(fam, socket.SOCK_DGRAM) 90 s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) 91 s.setblocking(0) 92 s.bind((args.sip, port)) 93 print('binding on {}:{}'.format(args.sip, port)) 94 sockets.append(s) 95 inputs = sockets 96 count = 0 97 while count < args.count: 98 readable, writable, exceptional = select.select(inputs, [], inputs) 99 for s in readable: 100 (data, address) = s.recvfrom(9000) 101 print('C: {}'.format(address)) 102 if args.match_str and args.match_str.encode('utf-8') != data: 103 raise Exception('Expected "{}" but got "{}"'.format( 104 args.match_str, data.decode('utf-8'))) 105 count += 1 106 107 108def main(): 109 args = parse_args() 110 test_ptr = globals()[args.test_name] 111 test_ptr(args) 112 113 114if __name__ == '__main__': 115 main() 116