1 # Copyright (c) 2016-2017 Intel Corporation
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
15 from __future__ import absolute_import
19 from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNF, DpdkVnfSetupEnvHelper
21 LOG = logging.getLogger(__name__)
23 # CGNAPT should work the same on all systems, we can provide the binary
24 CGNAPT_PIPELINE_COMMAND = 'sudo {tool_path} -p {port_mask_hex} -f {cfg_file} -s {script} {hwlb}'
25 WAIT_FOR_STATIC_NAPT = 4
27 CGNAPT_COLLECT_KPI = r"""\
37 class CgnaptApproxSetupEnvHelper(DpdkVnfSetupEnvHelper):
40 CFG_CONFIG = "/tmp/cgnapt_config"
41 CFG_SCRIPT = "/tmp/cgnapt_script"
42 DEFAULT_CONFIG_TPL_CFG = "cgnat.cfg"
43 PIPELINE_COMMAND = CGNAPT_PIPELINE_COMMAND
49 def _generate_ip_from_pool(ip):
50 ip_parts = ip.split('.')
51 assert len(ip_parts) == 4
52 iter1 = (str(n) for n in range(int(ip_parts[2]), 256))
53 for ip_parts[2] in iter1:
54 yield '.'.join(ip_parts)
57 def _update_cgnat_script_file(ip_pipeline_cfg, mcpi):
58 pipeline_config_str = str(ip_pipeline_cfg)
59 input_cmds = '\n'.join(mcpi)
60 icmp_flag = 'link 0 down' in input_cmds
62 pipeline_config_str = ''
63 return '\n'.join([pipeline_config_str, input_cmds])
65 def scale(self, flavor=""):
66 raise NotImplementedError
68 def _get_cgnapt_config(self):
69 # fixme: Get private port and gateway from port list
70 uplink_ports = self.vnfd_helper.port_pairs.uplink_ports
72 [self.vnfd_helper.find_interface(name=intf)["virtual-interface"]['dst_ip']
73 for intf in uplink_ports]
76 class CgnaptApproxVnf(SampleVNF):
80 COLLECT_KPI = CGNAPT_COLLECT_KPI
88 def __init__(self, name, vnfd, setup_env_helper_type=None, resource_helper_type=None):
89 if setup_env_helper_type is None:
90 setup_env_helper_type = CgnaptApproxSetupEnvHelper
92 super(CgnaptApproxVnf, self).__init__(name, vnfd, setup_env_helper_type,
95 def _vnf_up_post(self):
96 super(CgnaptApproxVnf, self)._vnf_up_post()
97 if self.scenario_helper.options.get('napt', 'static') != 'static':
100 flow = self.scenario_helper.all_options.get('flow', {})
101 public_ip = flow.get('public_ip', ['152.16.40.10']).pop()
102 ip_iter = self.setup_helper._generate_ip_from_pool(public_ip)
103 gw_ips = self.setup_helper._get_cgnapt_config()
104 if self.scenario_helper.vnf_cfg.get("lb_config", "SW") == 'HW':
105 pipeline = self.setup_helper.HW_DEFAULT_CORE
108 pipeline = self.setup_helper.SW_DEFAULT_CORE - 1
111 worker_threads = int(self.scenario_helper.vnf_cfg["worker_threads"])
112 # p <pipeline id> entry addm <prv_ipv4/6> prvport> <pub_ip> <pub_port> <phy_port> <ttl>
113 # <no_of_entries> <end_prv_port> <end_pub_port>
114 cmd_template = "p {0} entry addm {1} 1 {2} 1 0 32 65535 65535 65535"
115 for gw, ip in zip(gw_ips, ip_iter):
116 cmd = cmd_template.format(pipeline, gw, ip)
117 pipeline += worker_threads
120 self.vnf_execute(cmd)
122 time.sleep(WAIT_FOR_STATIC_NAPT)