def forward_data_to_client(self, data, forward_client): # Find session id of server # Iterate through the list of servers sent to the client and match by # IP and port. Is there a better way to determine this information? if forward_client is None or len(forward_client) != 2: return server, ip = self.find_server_in_cache(forward_client[0], forward_client[1], self.console) if server is None: if self.console == 0: server, ip = self.find_server_in_cache(forward_client[0], forward_client[1], 1) # Try Wii elif self.console == 1: server, ip = self.find_server_in_cache(forward_client[0], forward_client[1], 0) # Try DS self.log(logging.DEBUG, "find_server_in_cache returned: %s", server) self.log(logging.DEBUG, "Trying to send message to %s:%d...", forward_client[0], forward_client[1]) self.log(logging.DEBUG, "%s", utils.pretty_print_hex(bytearray(data))) if server is None: return self.log(logging.DEBUG, "%s %s", ip, server['publicip']) if server['publicip'] == ip and \ server['publicport'] == str(forward_client[1]): if forward_client[1] == 0 and 'localport' in server: # No public port returned from client, try contacting on # the local port. forward_client = (forward_client[0], int(server['localport'])) # Send command to server to get it to connect to natneg # Quick and lazy way to get a random 32bit integer. Replace with # something else later cookie = int(utils.generate_random_hex_str(8), 16) # if (len(data) == 24 and bytearray(data)[0:10] == \ # bytearray([0x53, 0x42, 0x43, 0x4d, 0x03, # 0x00, 0x00, 0x00, 0x01, 0x04])) or \ # (len(data) == 40 and bytearray(data)[0:10] == \ # bytearray([0x53, 0x42, 0x43, 0x4d, # 0x0b, 0x00, 0x00, 0x00, # 0x01, 0x04])): if self.own_server is None and len(data) >= 16 and \ bytearray(data)[0:4] in (bytearray([0xbb, 0x49, 0xcc, 0x4d]), bytearray([0x53, 0x42, 0x43, 0x4d])): # Is the endianness the same between the DS and Wii here? # It seems so but I'm not positive. # Note to self: Port is little endian here. self_port = utils.get_short(bytearray(data[10:12]), 0, False) self_ip = '.'.join(["%d" % x for x in bytearray(data[12:16])]) self.own_server, _ = self.find_server_in_cache( self_ip, self_port, self.console) if self.own_server is None: if self.console == 0: # Try Wii self.own_server, _ = self.find_server_in_cache( self_ip, self_port, 1) elif self.console == 1: # Try DS self.own_server, _ = self.find_server_in_cache( self_ip, self_port, 0) if self.own_server is None: self.log(logging.DEBUG, "Could not find own server: %s:%d", self_ip, self_port) else: self.log(logging.DEBUG, "Found own server: %s", self.own_server) elif len(data) == 10 and \ bytearray(data)[0:6] == \ bytearray([0xfd, 0xfc, 0x1e, 0x66, 0x6a, 0xb2]): natneg_session = utils.get_int_signed(data, 6) self.log(logging.DEBUG, "Adding %d to natneg server list: %s", natneg_session, server) # Store info in backend so we can get it later in natneg self.server_manager.add_natneg_server(natneg_session, server) if self.own_server is not None: self.log(logging.DEBUG, "Adding %d to natneg server list: %s (self)", natneg_session, self.own_server) # Store info in backend so we can get it later in natneg self.server_manager.add_natneg_server( natneg_session, self.own_server) # if self.qr is not None: # own_server = self.qr.get_own_server() # # self.log(logging.DEBUG, # "Adding %d to natneg server list: %s", # natneg_session, own_server) # self.server_manager.add_natneg_server(natneg_session, # own_server) output = bytearray([0xfe, 0xfd, 0x06]) output += utils.get_bytes_from_int(server['__session__']) output += bytearray(utils.get_bytes_from_int(cookie)) output += bytearray(data) if self.qr is not None: self.log(logging.DEBUG, "Forwarded data to %s:%s through QR server...", forward_client[0], forward_client[1]) self.qr.socket.sendto(output, forward_client) else: # In case we can't contact the QR server, just try sending # the packet directly. This isn't standard behavior but it # can work in some instances. self.log( logging.DEBUG, "Forwarded data to %s:%s directly" " (potential error occurred)...", forward_client[0], forward_client[1]) client_s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) client_s.sendto(output, forward_client)
def rawDataReceived(self, data): try: # First 2 bytes are the packet size. # # Third byte is the command byte. # According to Openspy-Core: # 0x00 - Server list request # 0x01 - Server info request # 0x02 - Send message request # 0x03 - Keep alive reply # 0x04 - Map loop request (?) # 0x05 - Player search request # # For Tetris DS, at the very least 0x00 and 0x02 need to be # implemented. self.buffer += data while len(self.buffer) > 0: packet_len = utils.get_short(self.buffer, 0, True) packet = None if len(self.buffer) >= packet_len: packet = self.buffer[:packet_len] self.buffer = self.buffer[packet_len:] if packet is None: # Don't have enough for the entire packet, break. break if packet[2] == '\x00': # Server list request self.log(logging.DEBUG, "Received server list request from %s:%s...", self.address.host, self.address.port) # This code is so... not python. The C programmer in me is # coming out strong. # TODO: Rewrite this section later? idx = 3 list_version = ord(packet[idx]) idx += 1 encoding_version = ord(packet[idx]) idx += 1 game_version = utils.get_int(packet, idx) idx += 4 query_game = utils.get_string(packet, idx) idx += len(query_game) + 1 game_name = utils.get_string(packet, idx) idx += len(game_name) + 1 challenge = ''.join(packet[idx:idx + 8]) idx += 8 filter = utils.get_string(packet, idx) idx += len(filter) + 1 fields = utils.get_string(packet, idx) idx += len(fields) + 1 options = utils.get_int(packet, idx, True) idx += 4 source_ip = 0 max_servers = 0 NO_SERVER_LIST = 0x02 ALTERNATE_SOURCE_IP = 0x08 LIMIT_RESULT_COUNT = 0x80 send_ip = False if (options & LIMIT_RESULT_COUNT): max_servers = utils.get_int(packet, idx) elif (options & ALTERNATE_SOURCE_IP): source_ip = utils.get_ip(packet, idx) elif (options & NO_SERVER_LIST): send_ip = True if '\\' in fields: fields = [ x for x in fields.split('\\') if x and not x.isspace() ] # print "%02x %02x %08x" % \ # (list_version, encoding_version, game_version) # print "%s" % query_game # print "%s" % game_name # print "%s" % challenge # print "%s" % filter # print "%s" % fields # print "%08x" % options # print "%d %08x" % (max_servers, source_ip) self.log( logging.DEBUG, "list version: %02x / encoding version: %02x /" " game version: %08x / query game: %s /" " game name: %s / challenge: %s / filter: %s /" " fields: %s / options: %08x / max servers: %d /" " source ip: %08x" % (list_version, encoding_version, game_version, query_game, game_name, challenge, filter, fields, options, max_servers, source_ip)) # Requesting ip and port of client, not server if not filter and not fields or send_ip: output = bytearray( [int(x) for x in self.address.host.split('.')]) # Does this ever change? output += utils.get_bytes_from_short(6500, True) enc = gs_utils.EncTypeX() output_enc = enc.encrypt( self.secret_key_list[game_name], challenge, output) self.transport.write(bytes(output_enc)) self.log(logging.DEBUG, "%s", "Responding with own IP and game port...") self.log(logging.DEBUG, "%s", utils.pretty_print_hex(output)) else: self.find_server(query_game, filter, fields, max_servers, game_name, challenge) elif packet[2] == '\x02': # Send message request packet_len = utils.get_short(packet, 0, True) dest_addr = '.'.join(["%d" % ord(x) for x in packet[3:7]]) # What's the pythonic way to do this? unpack? dest_port = utils.get_short(packet, 7, True) dest = (dest_addr, dest_port) self.log( logging.DEBUG, "Received send message request from %s:%s to" " %s:%d... expecting %d byte packet.", self.address.host, self.address.port, dest_addr, dest_port, packet_len) self.log(logging.DEBUG, "%s", utils.pretty_print_hex(bytearray(packet))) if packet_len == len(packet): # Contains entire packet, send immediately. self.forward_data_to_client(packet[9:], dest) else: self.log(logging.ERROR, "%s", "ERROR: Could not find entire packet.") elif packet[2] == '\x03': # Keep alive reply self.log(logging.DEBUG, "Received keep alive from %s:%s...", (self.address.host, self.address.port)) else: self.log(logging.DEBUG, "Received unknown command (%02x) from %s:%s...", ord(packet[2]), self.address.host, self.address.port) self.log(logging.DEBUG, "%s", utils.pretty_print_hex(bytearray(packet))) except: self.log(logging.ERROR, "Unknown exception: %s", traceback.format_exc())
def handle_packet(self, recv_data, addr): """Handle NATNEG. TODO: Pointer to methods for recv_data[7].""" logger.log(logging.DEBUG, "Connection from %s:%d...", addr[0], addr[1]) logger.log(logging.DEBUG, utils.pretty_print_hex(recv_data)) # Make sure it's a legal packet if recv_data[0:6] != bytearray([0xfd, 0xfc, 0x1e, 0x66, 0x6a, 0xb2]): return session_id = struct.unpack("<I", recv_data[8:12])[0] session_id_raw = recv_data[8:12] # Handle commands if recv_data[7] == '\x00': logger.log(logging.DEBUG, "Received initialization from %s:%s...", addr[0], addr[1]) output = bytearray(recv_data[0:14]) # Checked with Tetris DS, Mario Kart DS, and Metroid Prime # Hunters, and this seems to be the standard response to 0x00 output += bytearray([0xff, 0xff, 0x6d, 0x16, 0xb5, 0x7d, 0xea]) output[7] = 0x01 # Initialization response self.write_queue.put((output, addr)) # Try to connect to the server gameid = utils.get_string(recv_data, 0x15) client_id = "%02x" % ord(recv_data[13]) localip_raw = recv_data[15:19] localip_int_le = utils.get_ip(recv_data, 15) localip_int_be = utils.get_ip(recv_data, 15, True) localip = '.'.join(["%d" % ord(x) for x in localip_raw]) localport_raw = recv_data[19:21] localport = utils.get_short(localport_raw, 0, True) localaddr = (localip, localport, localip_int_le, localip_int_be) self.session_list \ .setdefault(session_id, {}) \ .setdefault(client_id, { 'connected': False, 'addr': '', 'localaddr': None, 'serveraddr': None, 'gameid': None }) # In fact, it's a pointer (cf. shallow copy) client_id_session = self.session_list[session_id][client_id] client_id_session['gameid'] = gameid client_id_session['addr'] = addr client_id_session['localaddr'] = localaddr clients = len(self.session_list[session_id]) # Unused? for client in self.session_list[session_id]: # Another shallow copy client_session = self.session_list[session_id][client] if client_session['connected'] or client == client_id: continue # if client_session['serveraddr'] \ # is None: serveraddr = self.get_server_info(gameid, session_id, client) if serveraddr is None: serveraddr = self.get_server_info_alt( gameid, session_id, client ) client_session['serveraddr'] = serveraddr logger.log(logging.DEBUG, "Found server from local ip/port: %s from %d", serveraddr, session_id) publicport = client_session['addr'][1] if client_session['localaddr'][1]: publicport = client_session['localaddr'][1] if client_session['serveraddr'] is not None: publicport = int( client_session['serveraddr']['publicport'] ) # Send to requesting client output = bytearray(recv_data[0:12]) output += bytearray([ int(x) for x in client_session['addr'][0].split('.') ]) output += utils.get_bytes_from_short(publicport, True) # Unknown, always seems to be \x42\x00 output += bytearray([0x42, 0x00]) output[7] = 0x05 # self.write_queue.put(( # output, # (client_id_session['addr']) # )) self.write_queue.put(( output, (client_id_session['addr'][0], client_id_session['addr'][1]) )) logger.log(logging.DEBUG, "Sent connection request to %s:%d...", client_id_session['addr'][0], client_id_session['addr'][1]) logger.log(logging.DEBUG, '%s', utils.pretty_print_hex(output)) # Send to other client # if client_id_session['serveraddr'] is None: serveraddr = self.get_server_info( gameid, session_id, client_id ) if serveraddr is None: serveraddr = self.get_server_info_alt( gameid, session_id, client_id ) client_id_session['serveraddr'] = serveraddr logger.log(logging.DEBUG, "Found server 2 from local ip/port: %s from %d", serveraddr, session_id) publicport = client_id_session['addr'][1] if client_id_session['localaddr'][1]: publicport = client_id_session['localaddr'][1] if client_id_session['serveraddr'] is not None: publicport = int( client_id_session['serveraddr']['publicport'] ) output = bytearray(recv_data[0:12]) output += bytearray( [int(x) for x in client_id_session['addr'][0].split('.')] ) output += utils.get_bytes_from_short(publicport, True) # Unknown, always seems to be \x42\x00 output += bytearray([0x42, 0x00]) output[7] = 0x05 # self.write_queue.put((output, (client_session['addr']))) self.write_queue.put((output, (client_session['addr'][0], client_session['addr'][1]))) logger.log(logging.DEBUG, "Sent connection request to %s:%d...", client_session['addr'][0], client_session['addr'][1]) logger.log(logging.DEBUG, '%s', utils.pretty_print_hex(output)) elif recv_data[7] == '\x06': # Was able to connect client_id = "%02x" % ord(recv_data[13]) logger.log(logging.DEBUG, "Received connected command from %s:%s...", addr[0], addr[1]) if session_id in self.session_list and \ client_id in self.session_list[session_id]: self.session_list[session_id][client_id]['connected'] = True elif recv_data[7] == '\x0a': # Address check. Note: UNTESTED! client_id = "%02x" % ord(recv_data[13]) logger.log(logging.DEBUG, "Received address check command from %s:%s...", addr[0], addr[1]) output = bytearray(recv_data[0:15]) output += bytearray([int(x) for x in addr[0].split('.')]) output += utils.get_bytes_from_short(addr[1], True) output += bytearray(recv_data[len(output):]) output[7] = 0x0b self.write_queue.put((output, addr)) logger.log(logging.DEBUG, "Sent address check response to %s:%d...", addr[0], addr[1]) logger.log(logging.DEBUG, "%s", utils.pretty_print_hex(output)) elif recv_data[7] == '\x0c': # Natify port_type = "%02x" % ord(recv_data[12]) logger.log(logging.DEBUG, "Received natify command from %s:%s...", addr[0], addr[1]) output = bytearray(recv_data) output[7] = 0x02 # ERT Test self.write_queue.put((output, addr)) logger.log(logging.DEBUG, "Sent natify response to %s:%d...", addr[0], addr[1]) logger.log(logging.DEBUG, "%s", utils.pretty_print_hex(output)) elif recv_data[7] == '\x0d': # Report logger.log(logging.DEBUG, "Received report command from %s:%s...", addr[0], addr[1]) logger.log(logging.DEBUG, "%s", utils.pretty_print_hex(recv_data)) # Report response output = bytearray(recv_data[:21]) output[7] = 0x0e # Report response output[14] = 0 # Clear byte to match real server's response self.write_queue.put((output, addr)) elif recv_data[7] == '\x0f': # Natneg v4 command thanks to Pipian. # Only seems to be used in very few DS games (namely, # Pokemon Black/White/Black 2/White 2). logger.log(logging.DEBUG, "Received pre-init command from %s:%s...", addr[0], addr[1]) logger.log(logging.DEBUG, "%s", utils.pretty_print_hex(recv_data)) session = utils.get_int(recv_data[-4:], 0) # Report response output = bytearray(recv_data[:-4]) + bytearray([0, 0, 0, 0]) output[7] = 0x10 # Pre-init response if not session: # What's the correct behavior when session == 0? output[13] = 2 elif session in self.natneg_preinit_session: # Should this be sent to both clients or just the one that # connected most recently? # I can't tell from a one sided packet capture of Pokemon. # For the time being, send to both clients just in case. output[13] = 2 self.write_queue.put((output, self.natneg_preinit_session[session])) output[12] = (1, 0)[output[12]] # Swap the index del self.natneg_preinit_session[session] else: output[13] = 0 self.natneg_preinit_session[session] = addr self.write_queue.put((output, addr)) else: # Was able to connect logger.log(logging.DEBUG, "Received unknown command %02x from %s:%s...", ord(recv_data[7]), addr[0], addr[1])
def handle_packet(self, recv_data, addr): logger.log(logging.DEBUG, "Connection from %s:%d..." % (addr[0], addr[1])) logger.log(logging.DEBUG, utils.pretty_print_hex(recv_data)) # Make sure it's a legal packet if recv_data[0:6] != bytearray([0xfd, 0xfc, 0x1e, 0x66, 0x6a, 0xb2]): return session_id = struct.unpack("<I", recv_data[8:12])[0] session_id_raw = recv_data[8:12] # Handle commands if recv_data[7] == '\x00': logger.log( logging.DEBUG, "Received initialization from %s:%s..." % (addr[0], addr[1])) output = bytearray(recv_data[0:14]) output += bytearray( [0xff, 0xff, 0x6d, 0x16, 0xb5, 0x7d, 0xea] ) # Checked with Tetris DS, Mario Kart DS, and Metroid Prime Hunters, and this seems to be the standard response to 0x00 output[7] = 0x01 # Initialization response self.write_queue.put((output, addr)) # Try to connect to the server gameid = utils.get_string(recv_data, 0x15) client_id = "%02x" % ord(recv_data[13]) localip_raw = recv_data[15:19] localip_int_le = utils.get_ip(recv_data, 15) localip_int_be = utils.get_ip(recv_data, 15, True) localip = '.'.join(["%d" % ord(x) for x in localip_raw]) localport_raw = recv_data[19:21] localport = utils.get_short(localport_raw, 0, True) localaddr = (localip, localport, localip_int_le, localip_int_be) self.session_list.setdefault(session_id, {}).setdefault( client_id, { 'connected': False, 'addr': '', 'localaddr': None, 'serveraddr': None, 'gameid': None }) self.session_list[session_id][client_id]['gameid'] = gameid self.session_list[session_id][client_id]['addr'] = addr self.session_list[session_id][client_id]['localaddr'] = localaddr clients = len(self.session_list[session_id]) for client in self.session_list[session_id]: if self.session_list[session_id][client][ 'connected'] == False: # and self.session_list[session_id][client]['localaddr'][1] != 0: if client == client_id: continue #if self.session_list[session_id][client]['serveraddr'] == None: serveraddr = self.get_server_info(gameid, session_id, client) if serveraddr == None: serveraddr = self.get_server_info_alt( gameid, session_id, client) self.session_list[session_id][client][ 'serveraddr'] = serveraddr logger.log( logging.DEBUG, "Found server from local ip/port: %s from %d" % (serveraddr, session_id)) publicport = self.session_list[session_id][client]['addr'][ 1] if self.session_list[session_id][client]['localaddr'][ 1] != 0: publicport = self.session_list[session_id][client][ 'localaddr'][1] if self.session_list[session_id][client][ 'serveraddr'] != None: publicport = int(self.session_list[session_id][client] ['serveraddr']['publicport']) # Send to requesting client output = bytearray(recv_data[0:12]) output += bytearray([ int(x) for x in self.session_list[session_id][client] ['addr'][0].split('.') ]) output += utils.get_bytes_from_short(publicport, True) output += bytearray( [0x42, 0x00]) # Unknown, always seems to be \x42\x00 output[7] = 0x05 #self.write_queue.put((output, (self.session_list[session_id][client_id]['addr']))) self.write_queue.put((output, ( self.session_list[session_id][client_id]['addr'][0], self.session_list[session_id][client_id]['addr'][1]))) logger.log( logging.DEBUG, "Sent connection request to %s:%d..." % (self.session_list[session_id][client_id]['addr'][0], self.session_list[session_id][client_id]['addr'][1])) logger.log(logging.DEBUG, utils.pretty_print_hex(output)) # Send to other client #if self.session_list[session_id][client_id]['serveraddr'] == None: serveraddr = self.get_server_info(gameid, session_id, client_id) if serveraddr == None: serveraddr = self.get_server_info_alt( gameid, session_id, client_id) self.session_list[session_id][client_id][ 'serveraddr'] = serveraddr logger.log( logging.DEBUG, "Found server 2 from local ip/port: %s from %d" % (serveraddr, session_id)) publicport = self.session_list[session_id][client_id][ 'addr'][1] if self.session_list[session_id][client_id]['localaddr'][ 1] != 0: publicport = self.session_list[session_id][client_id][ 'localaddr'][1] if self.session_list[session_id][client_id][ 'serveraddr'] != None: publicport = int( self.session_list[session_id][client_id] ['serveraddr']['publicport']) output = bytearray(recv_data[0:12]) output += bytearray([ int(x) for x in self.session_list[session_id] [client_id]['addr'][0].split('.') ]) output += utils.get_bytes_from_short(publicport, True) output += bytearray( [0x42, 0x00]) # Unknown, always seems to be \x42\x00 output[7] = 0x05 #self.write_queue.put((output, (self.session_list[session_id][client]['addr']))) self.write_queue.put( (output, (self.session_list[session_id][client]['addr'][0], self.session_list[session_id][client]['addr'][1]))) logger.log( logging.DEBUG, "Sent connection request to %s:%d..." % (self.session_list[session_id][client]['addr'][0], self.session_list[session_id][client]['addr'][1])) logger.log(logging.DEBUG, utils.pretty_print_hex(output)) elif recv_data[7] == '\x06': # Was able to connect client_id = "%02x" % ord(recv_data[13]) logger.log( logging.DEBUG, "Received connected command from %s:%s..." % (addr[0], addr[1])) if session_id in self.session_list and client_id in self.session_list[ session_id]: self.session_list[session_id][client_id]['connected'] = True elif recv_data[7] == '\x0a': # Address check. Note: UNTESTED! client_id = "%02x" % ord(recv_data[13]) logger.log( logging.DEBUG, "Received address check command from %s:%s..." % (addr[0], addr[1])) output = bytearray(recv_data[0:15]) output += bytearray([int(x) for x in addr[0].split('.')]) output += utils.get_bytes_from_short(addr[1], True) output += bytearray(recv_data[len(output):]) output[7] = 0x0b self.write_queue.put((output, addr)) logger.log( logging.DEBUG, "Sent address check response to %s:%d..." % (addr[0], addr[1])) logger.log(logging.DEBUG, utils.pretty_print_hex(output)) elif recv_data[7] == '\x0c': # Natify port_type = "%02x" % ord(recv_data[12]) logger.log( logging.DEBUG, "Received natify command from %s:%s..." % (addr[0], addr[1])) output = bytearray(recv_data) output[7] = 0x02 # ERT Test self.write_queue.put((output, addr)) logger.log(logging.DEBUG, "Sent natify response to %s:%d..." % (addr[0], addr[1])) logger.log(logging.DEBUG, utils.pretty_print_hex(output)) elif recv_data[7] == '\x0d': # Report logger.log( logging.DEBUG, "Received report command from %s:%s..." % (addr[0], addr[1])) logger.log(logging.DEBUG, utils.pretty_print_hex(recv_data)) # Report response output = bytearray(recv_data[:21]) output[7] = 0x0e # Report response output[14] = 0 # Clear byte to match real server's response self.write_queue.put((output, addr)) elif recv_data[7] == '\x0f': # Natneg v4 command thanks to Pipian. # Only seems to be used in very few DS games (namely, Pokemon Black/White/Black 2/White 2). logger.log( logging.DEBUG, "Received pre-init command from %s:%s..." % (addr[0], addr[1])) logger.log(logging.DEBUG, utils.pretty_print_hex(recv_data)) session = utils.get_int(recv_data[-4:], 0) # Report response output = bytearray(recv_data[:-4]) + bytearray([0, 0, 0, 0]) output[7] = 0x10 # Pre-init response if session == 0: # What's the correct behavior when session == 0? output[13] = 2 elif session in self.natneg_preinit_session: # Should this be sent to both clients or just the one that connected most recently? # I can't tell from a one sided packet capture of Pokemon. # For the time being, send to both clients just in case. output[13] = 2 self.write_queue.put( (output, self.natneg_preinit_session[session])) output[12] = (1, 0)[output[12]] # Swap the index del self.natneg_preinit_session[session] else: output[13] = 0 self.natneg_preinit_session[session] = addr self.write_queue.put((output, addr)) else: # Was able to connect logger.log( logging.DEBUG, "Received unknown command %02x from %s:%s..." % (ord(recv_data[7]), addr[0], addr[1]))
def forward_data_to_client(self, data, forward_client): # Find session id of server # Iterate through the list of servers sent to the client and match by # IP and port. Is there a better way to determine this information? if forward_client is None or len(forward_client) != 2: return server, ip = self.find_server_in_cache(forward_client[0], forward_client[1], self.console) if server is None: if self.console == 0: server, ip = self.find_server_in_cache(forward_client[0], forward_client[1], 1) # Try Wii elif self.console == 1: server, ip = self.find_server_in_cache(forward_client[0], forward_client[1], 0) # Try DS self.log(logging.DEBUG, "find_server_in_cache returned: %s", server) self.log(logging.DEBUG, "Trying to send message to %s:%d...", forward_client[0], forward_client[1]) self.log(logging.DEBUG, "%s", utils.pretty_print_hex(bytearray(data))) if server is None: return self.log(logging.DEBUG, "%s %s", ip, server['publicip']) if server['publicip'] == ip and \ server['publicport'] == str(forward_client[1]): if forward_client[1] == 0 and 'localport' in server: # No public port returned from client, try contacting on # the local port. forward_client = (forward_client[0], int(server['localport'])) # Send command to server to get it to connect to natneg # Quick and lazy way to get a random 32bit integer. Replace with # something else later cookie = int(utils.generate_random_hex_str(8), 16) # if (len(data) == 24 and bytearray(data)[0:10] == \ # bytearray([0x53, 0x42, 0x43, 0x4d, 0x03, # 0x00, 0x00, 0x00, 0x01, 0x04])) or \ # (len(data) == 40 and bytearray(data)[0:10] == \ # bytearray([0x53, 0x42, 0x43, 0x4d, # 0x0b, 0x00, 0x00, 0x00, # 0x01, 0x04])): if self.own_server is None and len(data) >= 16 and \ bytearray(data)[0:4] in (bytearray([0xbb, 0x49, 0xcc, 0x4d]), bytearray([0x53, 0x42, 0x43, 0x4d])): # Is the endianness the same between the DS and Wii here? # It seems so but I'm not positive. # Note to self: Port is little endian here. self_port = utils.get_short(bytearray(data[10:12]), 0, False) self_ip = '.'.join(["%d" % x for x in bytearray(data[12:16])]) self.own_server, _ = self.find_server_in_cache(self_ip, self_port, self.console) if self.own_server is None: if self.console == 0: # Try Wii self.own_server, _ = self.find_server_in_cache( self_ip, self_port, 1 ) elif self.console == 1: # Try DS self.own_server, _ = self.find_server_in_cache( self_ip, self_port, 0 ) if self.own_server is None: self.log(logging.DEBUG, "Could not find own server: %s:%d", self_ip, self_port) else: self.log(logging.DEBUG, "Found own server: %s", self.own_server) elif len(data) == 10 and \ bytearray(data)[0:6] == \ bytearray([0xfd, 0xfc, 0x1e, 0x66, 0x6a, 0xb2]): natneg_session = utils.get_int_signed(data, 6) self.log(logging.DEBUG, "Adding %d to natneg server list: %s", natneg_session, server) # Store info in backend so we can get it later in natneg self.server_manager.add_natneg_server(natneg_session, server) if self.own_server is not None: self.log(logging.DEBUG, "Adding %d to natneg server list: %s (self)", natneg_session, self.own_server) # Store info in backend so we can get it later in natneg self.server_manager.add_natneg_server(natneg_session, self.own_server) # if self.qr is not None: # own_server = self.qr.get_own_server() # # self.log(logging.DEBUG, # "Adding %d to natneg server list: %s", # natneg_session, own_server) # self.server_manager.add_natneg_server(natneg_session, # own_server) output = bytearray([0xfe, 0xfd, 0x06]) output += utils.get_bytes_from_int(server['__session__']) output += bytearray(utils.get_bytes_from_int(cookie)) output += bytearray(data) if self.qr is not None: self.log(logging.DEBUG, "Forwarded data to %s:%s through QR server...", forward_client[0], forward_client[1]) self.qr.socket.sendto(output, forward_client) else: # In case we can't contact the QR server, just try sending # the packet directly. This isn't standard behavior but it # can work in some instances. self.log(logging.DEBUG, "Forwarded data to %s:%s directly" " (potential error occurred)...", forward_client[0], forward_client[1]) client_s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) client_s.sendto(output, forward_client)
def rawDataReceived(self, data): try: # First 2 bytes are the packet size. # # Third byte is the command byte. # According to Openspy-Core: # 0x00 - Server list request # 0x01 - Server info request # 0x02 - Send message request # 0x03 - Keep alive reply # 0x04 - Map loop request (?) # 0x05 - Player search request # # For Tetris DS, at the very least 0x00 and 0x02 need to be # implemented. self.buffer += data while len(self.buffer) > 0: packet_len = utils.get_short(self.buffer, 0, True) packet = None if len(self.buffer) >= packet_len: packet = self.buffer[:packet_len] self.buffer = self.buffer[packet_len:] if packet is None: # Don't have enough for the entire packet, break. break if packet[2] == '\x00': # Server list request self.log(logging.DEBUG, "Received server list request from %s:%s...", self.address.host, self.address.port) # This code is so... not python. The C programmer in me is # coming out strong. # TODO: Rewrite this section later? idx = 3 list_version = ord(packet[idx]) idx += 1 encoding_version = ord(packet[idx]) idx += 1 game_version = utils.get_int(packet, idx) idx += 4 query_game = utils.get_string(packet, idx) idx += len(query_game) + 1 game_name = utils.get_string(packet, idx) idx += len(game_name) + 1 challenge = ''.join(packet[idx:idx+8]) idx += 8 filter = utils.get_string(packet, idx) idx += len(filter) + 1 fields = utils.get_string(packet, idx) idx += len(fields) + 1 options = utils.get_int(packet, idx, True) idx += 4 source_ip = 0 max_servers = 0 NO_SERVER_LIST = 0x02 ALTERNATE_SOURCE_IP = 0x08 LIMIT_RESULT_COUNT = 0x80 send_ip = False if (options & LIMIT_RESULT_COUNT): max_servers = utils.get_int(packet, idx) elif (options & ALTERNATE_SOURCE_IP): source_ip = utils.get_ip(packet, idx) elif (options & NO_SERVER_LIST): send_ip = True if '\\' in fields: fields = [x for x in fields.split('\\') if x and not x.isspace()] # print "%02x %02x %08x" % \ # (list_version, encoding_version, game_version) # print "%s" % query_game # print "%s" % game_name # print "%s" % challenge # print "%s" % filter # print "%s" % fields # print "%08x" % options # print "%d %08x" % (max_servers, source_ip) self.log(logging.DEBUG, "list version: %02x / encoding version: %02x /" " game version: %08x / query game: %s /" " game name: %s / challenge: %s / filter: %s /" " fields: %s / options: %08x / max servers: %d /" " source ip: %08x", list_version, encoding_version, game_version, query_game, game_name, challenge, filter, fields, options, max_servers, source_ip) # Requesting ip and port of client, not server if not filter and not fields or send_ip: output = bytearray( [int(x) for x in self.address.host.split('.')] ) # Does this ever change? output += utils.get_bytes_from_short(6500, True) enc = gs_utils.EncTypeX() output_enc = enc.encrypt( self.secret_key_list[game_name], challenge, output ) self.transport.write(bytes(output_enc)) self.log(logging.DEBUG, "%s", "Responding with own IP and game port...") self.log(logging.DEBUG, "%s", utils.pretty_print_hex(output)) else: self.find_server(query_game, filter, fields, max_servers, game_name, challenge) elif packet[2] == '\x02': # Send message request packet_len = utils.get_short(packet, 0, True) dest_addr = '.'.join(["%d" % ord(x) for x in packet[3:7]]) # What's the pythonic way to do this? unpack? dest_port = utils.get_short(packet, 7, True) dest = (dest_addr, dest_port) self.log(logging.DEBUG, "Received send message request from %s:%s to" " %s:%d... expecting %d byte packet.", self.address.host, self.address.port, dest_addr, dest_port, packet_len) self.log(logging.DEBUG, "%s", utils.pretty_print_hex(bytearray(packet))) if packet_len == len(packet): # Contains entire packet, send immediately. self.forward_data_to_client(packet[9:], dest) else: self.log(logging.ERROR, "%s", "ERROR: Could not find entire packet.") elif packet[2] == '\x03': # Keep alive reply self.log(logging.DEBUG, "Received keep alive from %s:%s...", self.address.host, self.address.port) else: self.log(logging.DEBUG, "Received unknown command (%02x) from %s:%s...", ord(packet[2]), self.address.host, self.address.port) self.log(logging.DEBUG, "%s", utils.pretty_print_hex(bytearray(packet))) except: self.log(logging.ERROR, "Unknown exception: %s", traceback.format_exc())