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Add new module - junos_ping (#50711)
* WIP junos_ping Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Added junos_ping module Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Minor changes Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Minor changes - 2 Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Fix CI Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Initial tests Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * WIP tests Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Fix spaces Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Fixed unit tests Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Removed unused print statements Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Removed unused print statements Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Update license template Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com> * Fixed Review Comments Signed-off-by: NilashishC <nilashishchakraborty8@gmail.com>
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Nilashish Chakraborty
GitHub
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231
lib/ansible/modules/network/junos/junos_ping.py
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lib/ansible/modules/network/junos/junos_ping.py
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#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2019, Ansible by Red Hat, inc
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'network'}
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DOCUMENTATION = """
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---
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module: junos_ping
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short_description: Tests reachability using ping from devices running Juniper JUNOS
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description:
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- Tests reachability using ping from devices running Juniper JUNOS to a remote destination.
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- Tested against Junos (17.3R1.10)
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- For a general purpose network module, see the M(net_ping) module.
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- For Windows targets, use the M(win_ping) module instead.
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- For targets running Python, use the M(ping) module instead.
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author:
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- Nilashish Chakraborty (@nilashishc)
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version_added: '2.8'
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options:
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dest:
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description:
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- The IP Address or hostname (resolvable by the device) of the remote node.
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required: true
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count:
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description:
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- Number of packets to send to check reachability.
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type: int
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default: 5
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source:
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description:
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- The IP Address to use while sending the ping packet(s).
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interface:
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description:
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- The source interface to use while sending the ping packet(s).
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ttl:
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description:
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- The time-to-live value for the ICMP packet(s).
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type: int
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size:
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description:
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- Determines the size (in bytes) of the ping packet(s).
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type: int
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interval:
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description:
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- Determines the interval (in seconds) between consecutive pings.
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type: int
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state:
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description:
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- Determines if the expected result is success or fail.
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choices: [ absent, present ]
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default: present
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notes:
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- For a general purpose network module, see the M(net_ping) module.
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- For Windows targets, use the M(win_ping) module instead.
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- For targets running Python, use the M(ping) module instead.
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extends_documentation_fragment: junos
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"""
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EXAMPLES = """
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- name: Test reachability to 10.10.10.10
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junos_ping:
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dest: 10.10.10.10
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- name: Test reachability to 10.20.20.20 using source and size set
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junos_ping:
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dest: 10.20.20.20
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size: 1024
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ttl: 128
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- name: Test unreachability to 10.30.30.30 using interval
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junos_ping:
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dest: 10.30.30.30
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interval: 3
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state: absent
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- name: Test reachability to 10.40.40.40 setting count and interface
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junos_ping:
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dest: 10.40.40.40
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interface: fxp0
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count: 20
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size: 512
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"""
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RETURN = """
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commands:
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description: List of commands sent.
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returned: always
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type: list
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sample: ["ping 10.8.38.44 count 10 source 10.8.38.38 ttl 128"]
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packet_loss:
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description: Percentage of packets lost.
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returned: always
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type: str
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sample: "0%"
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packets_rx:
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description: Packets successfully received.
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returned: always
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type: int
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sample: 20
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packets_tx:
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description: Packets successfully transmitted.
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returned: always
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type: int
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sample: 20
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rtt:
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description: The round trip time (RTT) stats.
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returned: when ping succeeds
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type: dict
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sample: {"avg": 2, "max": 8, "min": 1, "stddev": 24}
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"""
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import re
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.network.junos.junos import junos_argument_spec, get_connection
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def main():
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""" main entry point for module execution
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"""
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argument_spec = dict(
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count=dict(type="int", default=5),
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dest=dict(type="str", required=True),
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source=dict(),
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interface=dict(),
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ttl=dict(type='int'),
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size=dict(type='int'),
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interval=dict(type='int'),
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state=dict(type="str", choices=["absent", "present"], default="present"),
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)
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argument_spec.update(junos_argument_spec)
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module = AnsibleModule(argument_spec=argument_spec)
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count = module.params["count"]
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dest = module.params["dest"]
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source = module.params["source"]
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size = module.params["size"]
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ttl = module.params["ttl"]
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interval = module.params["interval"]
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interface = module.params['interface']
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warnings = list()
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results = {'changed': False}
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if warnings:
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results["warnings"] = warnings
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results["commands"] = build_ping(dest, count, size, interval, source, ttl, interface)
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conn = get_connection(module)
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ping_results = conn.get(results["commands"])
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rtt_info, rate_info = None, None
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for line in ping_results.split("\n"):
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if line.startswith('round-trip'):
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rtt_info = line
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if line.startswith('%s packets transmitted' % count):
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rate_info = line
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if rtt_info:
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rtt = parse_rtt(rtt_info)
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for k, v in rtt.items():
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if rtt[k] is not None:
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rtt[k] = float(v)
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results["rtt"] = rtt
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pkt_loss, rx, tx = parse_rate(rate_info)
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results["packet_loss"] = str(pkt_loss) + "%"
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results["packets_rx"] = int(rx)
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results["packets_tx"] = int(tx)
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validate_results(module, pkt_loss, results)
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module.exit_json(**results)
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def build_ping(dest, count, size=None, interval=None, source=None, ttl=None, interface=None):
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cmd = "ping {0} count {1}".format(dest, str(count))
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if source:
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cmd += " source {0}".format(source)
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if interface:
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cmd += " interface {0}".format(interface)
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if ttl:
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cmd += " ttl {0}".format(str(ttl))
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if size:
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cmd += " size {0}".format(str(size))
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if interval:
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cmd += " interval {0}".format(str(interval))
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return cmd
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def parse_rate(rate_info):
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rate_re = re.compile(
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r"(?P<tx>\d*) packets transmitted,(?:\s*)(?P<rx>\d*) packets received,(?:\s*)(?P<pkt_loss>\d*)% packet loss")
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rate = rate_re.match(rate_info)
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return rate.group("pkt_loss"), rate.group("rx"), rate.group("tx")
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def parse_rtt(rtt_info):
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rtt_re = re.compile(
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r"round-trip (?:.*)=(?:\s*)(?P<min>\d+\.\d+).(?:\d*)/(?P<avg>\d+\.\d+).(?:\d*)/(?P<max>\d*\.\d*).(?:\d*)/(?P<stddev>\d*\.\d*)")
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rtt = rtt_re.match(rtt_info)
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return rtt.groupdict()
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def validate_results(module, loss, results):
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state = module.params["state"]
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if state == "present" and int(loss) == 100:
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module.fail_json(msg="Ping failed unexpectedly", **results)
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elif state == "absent" and int(loss) < 100:
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module.fail_json(msg="Ping succeeded unexpectedly", **results)
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if __name__ == "__main__":
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main()
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