1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
# -*- coding: utf-8 -*-
#
# Copyright (c) 2018 F5 Networks Inc.
# GNU General Public License v3.0 (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
from __future__ import absolute_import, division, print_function
__metaclass__ = type
from ansible.module_utils.network.common.utils import validate_ip_address
try:
# Ansible 2.6 and later
from ansible.module_utils.network.common.utils import validate_ip_v6_address
except ImportError:
import socket
# Ansible 2.5 and earlier
#
# This method is simply backported from the 2.6 source code.
def validate_ip_v6_address(address):
try:
socket.inet_pton(socket.AF_INET6, address)
except socket.error:
return False
return True
try:
from library.module_utils.compat.ipaddress import ip_interface
from library.module_utils.compat.ipaddress import ip_network
except ImportError:
from ansible.module_utils.compat.ipaddress import ip_interface
from ansible.module_utils.compat.ipaddress import ip_network
def is_valid_ip(addr, type='all'):
if type in ['all', 'ipv4']:
if validate_ip_address(addr):
return True
if type in ['all', 'ipv6']:
if validate_ip_v6_address(addr):
return True
return False
def ipv6_netmask_to_cidr(mask):
"""converts an IPv6 netmask to CIDR form
According to the link below, CIDR is the only official way to specify
a subset of IPv6. With that said, the same link provides a way to
loosely convert an netmask to a CIDR.
Arguments:
mask (string): The IPv6 netmask to convert to CIDR
Returns:
int: The CIDR representation of the netmask
References:
https://stackoverflow.com/a/33533007
http://v6decode.com/
"""
bit_masks = [
0, 0x8000, 0xc000, 0xe000, 0xf000, 0xf800,
0xfc00, 0xfe00, 0xff00, 0xff80, 0xffc0,
0xffe0, 0xfff0, 0xfff8, 0xfffc, 0xfffe,
0xffff
]
count = 0
try:
for w in mask.split(':'):
if not w or int(w, 16) == 0:
break
count += bit_masks.index(int(w, 16))
return count
except Exception:
return -1
def is_valid_ip_network(address):
try:
ip_network(u'{0}'.format(address))
return True
except ValueError:
return False
def is_valid_ip_interface(address):
try:
ip_interface(u'{0}'.format(address))
return True
except ValueError:
return False
def get_netmask(address):
addr = ip_network(u'{0}'.format(address))
netmask = addr.netmask.compressed
return netmask
def compress_address(address):
addr = ip_network(u'{0}'.format(address))
result = addr.compressed.split('/')[0]
return result
|
