| # Copyright (c) 2015 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib.cros.network import interface |
| from autotest_lib.client.cros import dhcp_handling_rule |
| from autotest_lib.client.cros import dhcp_packet |
| from autotest_lib.client.cros import dhcp_test_base |
| from autotest_lib.client.cros.networking import shill_proxy |
| |
| # Length of time the lease from the DHCP server is valid. |
| LEASE_TIME_SECONDS = 60 |
| # We'll fill in the subnet and give this address to the client. |
| INTENDED_IP_SUFFIX = "0.0.0.101" |
| # We should be able to complete a DHCP negotiation in this amount of time. |
| DHCP_NEGOTIATION_TIMEOUT_SECONDS = 10 |
| |
| class network_DhcpFQDN(dhcp_test_base.DhcpTestBase): |
| """Test implemenation of client completing negotiation with FQDN flag.""" |
| |
| def test_body(self): |
| """Main body of the test.""" |
| subnet_mask = self.ethernet_pair.interface_subnet_mask |
| intended_ip = dhcp_test_base.DhcpTestBase.rewrite_ip_suffix( |
| subnet_mask, |
| self.server_ip, |
| INTENDED_IP_SUFFIX) |
| # It doesn't matter what is contained in this option value, except that |
| # the DHCP client does not crash decoding it or passing its |
| # interpretation of it back to shill. |
| fqdn_option = '\x03\xff\x00' |
| # This is the pool of information the server will give out to the client |
| # upon request. |
| dhcp_options = { |
| dhcp_packet.OPTION_SERVER_ID : self.server_ip, |
| dhcp_packet.OPTION_SUBNET_MASK : subnet_mask, |
| dhcp_packet.OPTION_IP_LEASE_TIME : LEASE_TIME_SECONDS, |
| dhcp_packet.OPTION_REQUESTED_IP : intended_ip, |
| dhcp_packet.OPTION_FULLY_QUALIFIED_DOMAIN_NAME : fqdn_option |
| } |
| rules = [ |
| dhcp_handling_rule.DhcpHandlingRule_RespondToDiscovery( |
| intended_ip, self.server_ip, dhcp_options, {}), |
| dhcp_handling_rule.DhcpHandlingRule_RespondToRequest( |
| intended_ip, self.server_ip, dhcp_options, {}) |
| ] |
| rules[-1].is_final_handler = True |
| |
| # In some DHCP server implementations, the FQDN option is provided in |
| # the DHCP ACK response without the client requesting it. |
| rules[-1].force_reply_options = [ |
| dhcp_packet.OPTION_FULLY_QUALIFIED_DOMAIN_NAME ] |
| |
| self.server.start_test(rules, DHCP_NEGOTIATION_TIMEOUT_SECONDS) |
| self.server.wait_for_test_to_finish() |
| if not self.server.last_test_passed: |
| raise error.TestFail('Test server didn\'t get all the messages it ' |
| 'was told to expect during negotiation.') |
| |
| # This test passes if the DHCP client lives long enough to send |
| # the network configuration to shill. |
| self.wait_for_dhcp_propagation() |
| self.check_dhcp_config(dhcp_options) |