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dladm_iptun.py
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dladm_iptun.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2016, Adam Števko <adam.stevko@gmail.com>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
#
DOCUMENTATION = '''
---
module: dladm_iptun
short_description: Manage IP tunnel interfaces on Solaris/illumos systems.
description:
- Manage IP tunnel interfaces on Solaris/illumos systems.
version_added: "2.3"
author: Adam Števko (@xen0l)
options:
name:
description:
- IP tunnel interface name.
required: true
aliases: [ "tunnel", "link" ]
temporary:
description:
- Specifies that the IP tunnel interface is temporary. Temporary IP tunnel
interfaces do not persist across reboots.
required: false
default: false
type:
description:
- Specifies the type of tunnel to be created.
required: false
default: "ipv4"
choices: [ "ipv4", "ipv6", "6to4" ]
local_address:
description:
- Literat IP address or hostname corresponding to the tunnel source.
required: false
aliases: [ "local" ]
remote_address:
description:
- Literal IP address or hostname corresponding to the tunnel destination.
required: false
aliases: [ "remote" ]
state:
description:
- Create or delete Solaris/illumos VNIC.
required: false
default: "present"
choices: [ "present", "absent" ]
'''
EXAMPLES = '''
# Create IPv4 tunnel interface 'iptun0'
dladm_iptun: name=iptun0 local_address=192.0.2.23 remote_address=203.0.113.10 state=present
# Change IPv4 tunnel remote address
dladm_iptun: name=iptun0 type=ipv4 local_address=192.0.2.23 remote_address=203.0.113.11
# Create IPv6 tunnel interface 'tun0'
dladm_iptun: name=tun0 type=ipv6 local_address=192.0.2.23 remote_address=203.0.113.42
# Remove 'iptun0' tunnel interface
dladm_iptun: name=iptun0 state=absent
'''
SUPPORTED_TYPES = ['ipv4', 'ipv6', '6to4']
class IPTun(object):
def __init__(self, module):
self.module = module
self.name = module.params['name']
self.type = module.params['type']
self.local_address = module.params['local_address']
self.remote_address = module.params['remote_address']
self.temporary = module.params['temporary']
self.state = module.params['state']
self.dladm_bin = self.module.get_bin_path('dladm', True)
def iptun_exists(self):
cmd = [self.dladm_bin]
cmd.append('show-iptun')
cmd.append(self.name)
(rc, _, _) = self.module.run_command(cmd)
if rc == 0:
return True
else:
return False
def create_iptun(self):
cmd = [self.dladm_bin]
cmd.append('create-iptun')
if self.temporary:
cmd.append('-t')
cmd.append('-T')
cmd.append(self.type)
cmd.append('-a')
cmd.append('local=' + self.local_address + ',remote=' + self.remote_address)
cmd.append(self.name)
return self.module.run_command(cmd)
def delete_iptun(self):
cmd = [self.dladm_bin]
cmd.append('delete-iptun')
if self.temporary:
cmd.append('-t')
cmd.append(self.name)
return self.module.run_command(cmd)
def update_iptun(self):
cmd = [self.dladm_bin]
cmd.append('modify-iptun')
if self.temporary:
cmd.append('-t')
cmd.append('-a')
cmd.append('local=' + self.local_address + ',remote=' + self.remote_address)
cmd.append(self.name)
return self.module.run_command(cmd)
def _query_iptun_props(self):
cmd = [self.dladm_bin]
cmd.append('show-iptun')
cmd.append('-p')
cmd.append('-c')
cmd.append('link,type,flags,local,remote')
cmd.append(self.name)
return self.module.run_command(cmd)
def iptun_needs_updating(self):
(rc, out, err) = self._query_iptun_props()
NEEDS_UPDATING = False
if rc == 0:
configured_local, configured_remote = out.split(':')[3:]
if self.local_address != configured_local or self.remote_address != configured_remote:
NEEDS_UPDATING = True
return NEEDS_UPDATING
else:
self.module.fail_json(msg='Failed to query tunnel interface %s properties' % self.name,
err=err,
rc=rc)
def main():
module = AnsibleModule(
argument_spec=dict(
name=dict(required=True, type='str'),
type=dict(default='ipv4', type='str', aliases=['tunnel_type'],
choices=SUPPORTED_TYPES),
local_address=dict(type='str', aliases=['local']),
remote_address=dict(type='str', aliases=['remote']),
temporary=dict(default=False, type='bool'),
state=dict(default='present', choices=['absent', 'present']),
),
required_if=[
['state', 'present', ['local_address', 'remote_address']],
],
supports_check_mode=True
)
iptun = IPTun(module)
rc = None
out = ''
err = ''
result = {}
result['name'] = iptun.name
result['type'] = iptun.type
result['local_address'] = iptun.local_address
result['remote_address'] = iptun.remote_address
result['state'] = iptun.state
result['temporary'] = iptun.temporary
if iptun.state == 'absent':
if iptun.iptun_exists():
if module.check_mode:
module.exit_json(changed=True)
(rc, out, err) = iptun.delete_iptun()
if rc != 0:
module.fail_json(name=iptun.name, msg=err, rc=rc)
elif iptun.state == 'present':
if not iptun.iptun_exists():
if module.check_mode:
module.exit_json(changed=True)
(rc, out, err) = iptun.create_iptun()
if rc is not None and rc != 0:
module.fail_json(name=iptun.name, msg=err, rc=rc)
else:
if iptun.iptun_needs_updating():
(rc, out, err) = ipyim.update_iptun()
if rc != 0:
module.fail_json(msg='Error while updating tunnel interface: "%s"' % err,
name=iptun.name,
stderr=err,
rc=rc)
if rc is None:
result['changed'] = False
else:
result['changed'] = True
if out:
result['stdout'] = out
if err:
result['stderr'] = err
module.exit_json(**result)
from ansible.module_utils.basic import *
main()