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 six.moves import zip
20 from yardstick.network_services.vnf_generic.vnf.sample_vnf import SampleVNF, DpdkVnfSetupEnvHelper
22 LOG = logging.getLogger(__name__)
24 # CGNAPT should work the same on all systems, we can provide the binary
25 CGNAPT_PIPELINE_COMMAND = 'sudo {tool_path} -p {ports_len_hex} -f {cfg_file} -s {script}'
26 WAIT_FOR_STATIC_NAPT = 4
28 CGNAPT_COLLECT_KPI = """\
38 class CgnaptApproxSetupEnvHelper(DpdkVnfSetupEnvHelper):
41 CFG_CONFIG = "/tmp/cgnapt_config"
42 CFG_SCRIPT = "/tmp/cgnapt_script"
43 DEFAULT_CONFIG_TPL_CFG = "cgnat.cfg"
44 PIPELINE_COMMAND = CGNAPT_PIPELINE_COMMAND
50 def _generate_ip_from_pool(ip):
51 ip_parts = ip.split('.')
52 assert len(ip_parts) == 4
53 iter1 = (str(n) for n in range(int(ip_parts[2]), 256))
54 for ip_parts[2] in iter1:
55 yield '.'.join(ip_parts)
58 def _update_cgnat_script_file(ip_pipeline_cfg, mcpi, vnf_str):
59 pipeline_config_str = str(ip_pipeline_cfg)
60 input_cmds = '\n'.join(mcpi)
61 icmp_flag = 'link 0 down' in input_cmds
63 pipeline_config_str = ''
64 return '\n'.join([pipeline_config_str, input_cmds])
66 def scale(self, flavor=""):
67 raise NotImplementedError
69 def _get_cgnapt_config(self, interfaces=None):
70 if interfaces is None:
71 interfaces = self.vnfd_helper.interfaces
75 # fixme: Get private port and gateway from port list
76 priv_ports = interfaces[::2]
77 for interface in priv_ports:
78 gateway_ips.append(self._get_ports_gateway(interface["name"]))
82 class CgnaptApproxVnf(SampleVNF):
86 COLLECT_KPI = CGNAPT_COLLECT_KPI
94 def __init__(self, name, vnfd, setup_env_helper_type=None, resource_helper_type=None):
95 if setup_env_helper_type is None:
96 setup_env_helper_type = CgnaptApproxSetupEnvHelper
98 super(CgnaptApproxVnf, self).__init__(name, vnfd, setup_env_helper_type,
101 def _vnf_up_post(self):
102 super(CgnaptApproxVnf, self)._vnf_up_post()
103 if self.scenario_helper.options.get('napt', 'static') != 'static':
106 ip_iter = self.setup_helper._generate_ip_from_pool("152.16.40.10")
107 gw_ips = self.setup_helper._get_cgnapt_config()
108 if self.scenario_helper.vnf_cfg.get("lb_config", "SW") == 'HW':
109 pipeline = self.setup_helper.HW_DEFAULT_CORE
112 pipeline = self.setup_helper.SW_DEFAULT_CORE - 1
115 worker_threads = int(self.scenario_helper.vnf_cfg["worker_threads"])
116 cmd_template = "p {0} entry addm {1} 1 {2} 1 0 32 65535 65535 65535"
117 for gw, ip in zip(gw_ips, ip_iter):
118 cmd = cmd_template.format(pipeline, gw, ip)
119 pipeline += worker_threads
121 self.vnf_execute(cmd)
123 time.sleep(WAIT_FOR_STATIC_NAPT)