root / snf-cyclades-app / synnefo / api / subnets.py @ 9f6760ee
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1 | 16f7d0d9 | Dionysis Grigoropoulos | # Copyright 2013 GRNET S.A. All rights reserved.
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2 | 16f7d0d9 | Dionysis Grigoropoulos | #
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3 | 16f7d0d9 | Dionysis Grigoropoulos | # Redistribution and use in source and binary forms, with or
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4 | 16f7d0d9 | Dionysis Grigoropoulos | # without modification, are permitted provided that the following
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5 | 16f7d0d9 | Dionysis Grigoropoulos | # conditions are met:
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6 | 16f7d0d9 | Dionysis Grigoropoulos | #
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7 | 16f7d0d9 | Dionysis Grigoropoulos | # 1. Redistributions of source code must retain the above
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8 | 16f7d0d9 | Dionysis Grigoropoulos | # copyright notice, this list of conditions and the following
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9 | 16f7d0d9 | Dionysis Grigoropoulos | # disclaimer.
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10 | 16f7d0d9 | Dionysis Grigoropoulos | #
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11 | 16f7d0d9 | Dionysis Grigoropoulos | # 2. Redistributions in binary form must reproduce the above
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12 | 16f7d0d9 | Dionysis Grigoropoulos | # copyright notice, this list of conditions and the following
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13 | 16f7d0d9 | Dionysis Grigoropoulos | # disclaimer in the documentation and/or other materials
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14 | 16f7d0d9 | Dionysis Grigoropoulos | # provided with the distribution.
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15 | 16f7d0d9 | Dionysis Grigoropoulos | #
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16 | 16f7d0d9 | Dionysis Grigoropoulos | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 16f7d0d9 | Dionysis Grigoropoulos | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 16f7d0d9 | Dionysis Grigoropoulos | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 16f7d0d9 | Dionysis Grigoropoulos | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 16f7d0d9 | Dionysis Grigoropoulos | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 16f7d0d9 | Dionysis Grigoropoulos | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 16f7d0d9 | Dionysis Grigoropoulos | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 16f7d0d9 | Dionysis Grigoropoulos | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 16f7d0d9 | Dionysis Grigoropoulos | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 16f7d0d9 | Dionysis Grigoropoulos | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 16f7d0d9 | Dionysis Grigoropoulos | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 16f7d0d9 | Dionysis Grigoropoulos | # POSSIBILITY OF SUCH DAMAGE.
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28 | 16f7d0d9 | Dionysis Grigoropoulos | #
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29 | 16f7d0d9 | Dionysis Grigoropoulos | # The views and conclusions contained in the software and
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30 | 16f7d0d9 | Dionysis Grigoropoulos | # documentation are those of the authors and should not be
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31 | 16f7d0d9 | Dionysis Grigoropoulos | # interpreted as representing official policies, either expressed
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32 | 16f7d0d9 | Dionysis Grigoropoulos | # or implied, of GRNET S.A.
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33 | 16f7d0d9 | Dionysis Grigoropoulos | |
34 | 16f7d0d9 | Dionysis Grigoropoulos | from logging import getLogger |
35 | 16f7d0d9 | Dionysis Grigoropoulos | from snf_django.lib import api |
36 | 16f7d0d9 | Dionysis Grigoropoulos | from snf_django.lib.api import faults |
37 | 16f7d0d9 | Dionysis Grigoropoulos | |
38 | 6a959c73 | Dionysis Grigoropoulos | from django.conf.urls import patterns |
39 | 16f7d0d9 | Dionysis Grigoropoulos | from django.http import HttpResponse |
40 | 16f7d0d9 | Dionysis Grigoropoulos | from django.utils import simplejson as json |
41 | 16f7d0d9 | Dionysis Grigoropoulos | |
42 | 16f7d0d9 | Dionysis Grigoropoulos | from snf_django.lib.api import utils |
43 | 4445f97a | Dionysis Grigoropoulos | from synnefo.db.models import Subnet, Network, IPPoolTable |
44 | 16f7d0d9 | Dionysis Grigoropoulos | from synnefo.logic import networks |
45 | 16f7d0d9 | Dionysis Grigoropoulos | |
46 | a996065e | Dionysis Grigoropoulos | from ipaddr import IPv4Network, IPv6Network, IPv4Address, IPAddress, IPNetwork |
47 | 16f7d0d9 | Dionysis Grigoropoulos | |
48 | 16f7d0d9 | Dionysis Grigoropoulos | log = getLogger(__name__) |
49 | 16f7d0d9 | Dionysis Grigoropoulos | |
50 | 16f7d0d9 | Dionysis Grigoropoulos | |
51 | 6a959c73 | Dionysis Grigoropoulos | urlpatterns = patterns( |
52 | 6a959c73 | Dionysis Grigoropoulos | 'synnefo.api.subnets',
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53 | 6a959c73 | Dionysis Grigoropoulos | (r'^(?:/|.json|.xml)?$', 'demux'), |
54 | 6a959c73 | Dionysis Grigoropoulos | (r'^/([-\w]+)(?:/|.json|.xml)?$', 'subnet_demux')) |
55 | 6a959c73 | Dionysis Grigoropoulos | |
56 | 6a959c73 | Dionysis Grigoropoulos | |
57 | 16f7d0d9 | Dionysis Grigoropoulos | def demux(request): |
58 | 16f7d0d9 | Dionysis Grigoropoulos | if request.method == 'GET': |
59 | 16f7d0d9 | Dionysis Grigoropoulos | return list_subnets(request)
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60 | 16f7d0d9 | Dionysis Grigoropoulos | elif request.method == 'POST': |
61 | 16f7d0d9 | Dionysis Grigoropoulos | return create_subnet(request)
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62 | 16f7d0d9 | Dionysis Grigoropoulos | else:
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63 | 16f7d0d9 | Dionysis Grigoropoulos | return api.api_method_not_allowed(request)
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64 | 16f7d0d9 | Dionysis Grigoropoulos | |
65 | 16f7d0d9 | Dionysis Grigoropoulos | |
66 | 16f7d0d9 | Dionysis Grigoropoulos | def subnet_demux(request, sub_id): |
67 | 16f7d0d9 | Dionysis Grigoropoulos | if request.method == 'GET': |
68 | 16f7d0d9 | Dionysis Grigoropoulos | return get_subnet(request, sub_id)
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69 | 16f7d0d9 | Dionysis Grigoropoulos | elif request.method == 'DELETE': |
70 | 16f7d0d9 | Dionysis Grigoropoulos | return delete_subnet(request, sub_id)
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71 | 16f7d0d9 | Dionysis Grigoropoulos | elif request.method == 'PUT': |
72 | 16f7d0d9 | Dionysis Grigoropoulos | return update_subnet(request, sub_id)
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73 | 16f7d0d9 | Dionysis Grigoropoulos | else:
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74 | 16f7d0d9 | Dionysis Grigoropoulos | return api.api_method_not_allowed(request)
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75 | 16f7d0d9 | Dionysis Grigoropoulos | |
76 | 16f7d0d9 | Dionysis Grigoropoulos | |
77 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='GET', user_required=True, logger=log) |
78 | 16f7d0d9 | Dionysis Grigoropoulos | def list_subnets(request): |
79 | 16f7d0d9 | Dionysis Grigoropoulos | """List all subnets of a user"""
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80 | 16f7d0d9 | Dionysis Grigoropoulos | log.debug('list_subnets')
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81 | 16f7d0d9 | Dionysis Grigoropoulos | |
82 | 16f7d0d9 | Dionysis Grigoropoulos | user_subnets = Subnet.objects.filter(network__userid=request.user_uniq) |
83 | 16f7d0d9 | Dionysis Grigoropoulos | subnets_dict = [subnet_to_dict(sub) |
84 | 16f7d0d9 | Dionysis Grigoropoulos | for sub in user_subnets.order_by('id')] |
85 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnets': subnets_dict})
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86 | 16f7d0d9 | Dionysis Grigoropoulos | |
87 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
88 | 16f7d0d9 | Dionysis Grigoropoulos | |
89 | 16f7d0d9 | Dionysis Grigoropoulos | |
90 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='POST', user_required=True, logger=log) |
91 | 16f7d0d9 | Dionysis Grigoropoulos | def create_subnet(request): |
92 | a996065e | Dionysis Grigoropoulos | """
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93 | a996065e | Dionysis Grigoropoulos | Create a subnet
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94 | a996065e | Dionysis Grigoropoulos | network_id and the desired cidr are mandatory, everything else is optional
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95 | a996065e | Dionysis Grigoropoulos | """
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96 | 16f7d0d9 | Dionysis Grigoropoulos | |
97 | 16f7d0d9 | Dionysis Grigoropoulos | dictionary = utils.get_request_dict(request) |
98 | 16f7d0d9 | Dionysis Grigoropoulos | log.info('create subnet %s', dictionary)
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99 | 16f7d0d9 | Dionysis Grigoropoulos | user_id = request.user_uniq |
100 | 16f7d0d9 | Dionysis Grigoropoulos | |
101 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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102 | 16f7d0d9 | Dionysis Grigoropoulos | subnet = dictionary['subnet']
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103 | 16f7d0d9 | Dionysis Grigoropoulos | network_id = subnet['network_id']
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104 | 16f7d0d9 | Dionysis Grigoropoulos | cidr = subnet['cidr']
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105 | 16f7d0d9 | Dionysis Grigoropoulos | except KeyError: |
106 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed request") |
107 | 16f7d0d9 | Dionysis Grigoropoulos | |
108 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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109 | 16f7d0d9 | Dionysis Grigoropoulos | network = Network.objects.get(id=network_id) |
110 | 16f7d0d9 | Dionysis Grigoropoulos | except Network.DoesNotExist:
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111 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.ItemNotFound("No networks found with that id") |
112 | 16f7d0d9 | Dionysis Grigoropoulos | |
113 | 16f7d0d9 | Dionysis Grigoropoulos | if user_id != network.userid:
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114 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.Unauthorized("Unauthorized operation") |
115 | 16f7d0d9 | Dionysis Grigoropoulos | |
116 | 16f7d0d9 | Dionysis Grigoropoulos | ipversion = subnet.get('ip_version', 4) |
117 | 16f7d0d9 | Dionysis Grigoropoulos | if ipversion not in [4, 6]: |
118 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed IP version type") |
119 | 16f7d0d9 | Dionysis Grigoropoulos | |
120 | 16f7d0d9 | Dionysis Grigoropoulos | # Returns the first available IP in the subnet
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121 | 16f7d0d9 | Dionysis Grigoropoulos | if ipversion == 6: |
122 | 16f7d0d9 | Dionysis Grigoropoulos | potential_gateway = str(IPv6Network(cidr).network + 1) |
123 | 16f7d0d9 | Dionysis Grigoropoulos | check_number_of_subnets(network, 6)
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124 | 16f7d0d9 | Dionysis Grigoropoulos | else:
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125 | 16f7d0d9 | Dionysis Grigoropoulos | potential_gateway = str(IPv4Network(cidr).network + 1) |
126 | 16f7d0d9 | Dionysis Grigoropoulos | check_number_of_subnets(network, 4)
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127 | 16f7d0d9 | Dionysis Grigoropoulos | |
128 | 16f7d0d9 | Dionysis Grigoropoulos | gateway = subnet.get('gateway_ip', potential_gateway)
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129 | 16f7d0d9 | Dionysis Grigoropoulos | |
130 | 16f7d0d9 | Dionysis Grigoropoulos | if ipversion == 6: |
131 | 16f7d0d9 | Dionysis Grigoropoulos | networks.validate_network_params(None, None, cidr, gateway) |
132 | 097009bf | Dionysis Grigoropoulos | slac = subnet.get('enable_slac', None) |
133 | 97ca522f | Dionysis Grigoropoulos | if slac is not None: |
134 | 097009bf | Dionysis Grigoropoulos | dhcp = check_boolean_value(slac, "enable_slac")
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135 | 97ca522f | Dionysis Grigoropoulos | else:
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136 | 911a1bc1 | Dionysis Grigoropoulos | dhcp = check_boolean_value(subnet.get('enable_dhcp', True), "dhcp") |
137 | 16f7d0d9 | Dionysis Grigoropoulos | else:
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138 | 16f7d0d9 | Dionysis Grigoropoulos | networks.validate_network_params(cidr, gateway) |
139 | 911a1bc1 | Dionysis Grigoropoulos | dhcp = check_boolean_value(subnet.get('enable_dhcp', True), "dhcp") |
140 | 16f7d0d9 | Dionysis Grigoropoulos | |
141 | a996065e | Dionysis Grigoropoulos | name = check_name_length(subnet.get('name', None)) |
142 | a996065e | Dionysis Grigoropoulos | |
143 | a996065e | Dionysis Grigoropoulos | dns = subnet.get('dns_nameservers', None) |
144 | a996065e | Dionysis Grigoropoulos | hosts = subnet.get('host_routes', None) |
145 | a996065e | Dionysis Grigoropoulos | |
146 | a996065e | Dionysis Grigoropoulos | gateway_ip = IPAddress(gateway) |
147 | a996065e | Dionysis Grigoropoulos | cidr_ip = IPNetwork(cidr) |
148 | a996065e | Dionysis Grigoropoulos | |
149 | 16f7d0d9 | Dionysis Grigoropoulos | allocation_pools = subnet.get('allocation_pools', None) |
150 | 16f7d0d9 | Dionysis Grigoropoulos | |
151 | 4445f97a | Dionysis Grigoropoulos | sub = Subnet.objects.create(name=name, network=network, cidr=cidr, |
152 | 4445f97a | Dionysis Grigoropoulos | ipversion=ipversion, gateway=gateway, |
153 | 4445f97a | Dionysis Grigoropoulos | dhcp=dhcp, host_routes=hosts, |
154 | 4445f97a | Dionysis Grigoropoulos | dns_nameservers=dns) |
155 | 4445f97a | Dionysis Grigoropoulos | |
156 | 4445f97a | Dionysis Grigoropoulos | pool_list = list()
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157 | 4445f97a | Dionysis Grigoropoulos | if allocation_pools is not None: |
158 | 4445f97a | Dionysis Grigoropoulos | # If the user specified IP allocation pools, validate them and use them
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159 | 16f7d0d9 | Dionysis Grigoropoulos | if ipversion == 6: |
160 | a996065e | Dionysis Grigoropoulos | raise api.faults.Conflict("Can't allocate an IP Pool in IPv6") |
161 | a996065e | Dionysis Grigoropoulos | pools = parse_ip_pools(allocation_pools) |
162 | 4445f97a | Dionysis Grigoropoulos | pool_list = string_to_ipaddr(pools) |
163 | 4445f97a | Dionysis Grigoropoulos | validate_subpools(pool_list, cidr_ip, gateway_ip) |
164 | 4445f97a | Dionysis Grigoropoulos | if allocation_pools is None and ipversion == 4: |
165 | 4445f97a | Dionysis Grigoropoulos | # Check if the gateway is the first IP of the subnet, in this case
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166 | 4445f97a | Dionysis Grigoropoulos | # create a single ip pool
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167 | 4445f97a | Dionysis Grigoropoulos | if int(gateway_ip) - int(cidr_ip) == 1: |
168 | 4445f97a | Dionysis Grigoropoulos | pool_list = [[gateway_ip + 1, cidr_ip.broadcast - 1]] |
169 | 4445f97a | Dionysis Grigoropoulos | else:
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170 | 4445f97a | Dionysis Grigoropoulos | # If the gateway isn't the first available ip, create two different
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171 | 4445f97a | Dionysis Grigoropoulos | # ip pools adjacent to said ip
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172 | 4445f97a | Dionysis Grigoropoulos | pool_list.append([cidr_ip.network + 1, gateway_ip - 1]) |
173 | 4445f97a | Dionysis Grigoropoulos | pool_list.append([gateway_ip + 1, cidr_ip.broadcast - 1]) |
174 | 16f7d0d9 | Dionysis Grigoropoulos | |
175 | 4445f97a | Dionysis Grigoropoulos | if pool_list:
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176 | 4445f97a | Dionysis Grigoropoulos | create_ip_pools(pool_list, cidr_ip, sub) |
177 | 16f7d0d9 | Dionysis Grigoropoulos | |
178 | 16f7d0d9 | Dionysis Grigoropoulos | subnet_dict = subnet_to_dict(sub) |
179 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnet': subnet_dict})
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180 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
181 | 16f7d0d9 | Dionysis Grigoropoulos | |
182 | 16f7d0d9 | Dionysis Grigoropoulos | |
183 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='GET', user_required=True, logger=log) |
184 | 16f7d0d9 | Dionysis Grigoropoulos | def get_subnet(request, sub_id): |
185 | 16f7d0d9 | Dionysis Grigoropoulos | """Show info of a specific subnet"""
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186 | 16f7d0d9 | Dionysis Grigoropoulos | log.debug('get_subnet %s', sub_id)
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187 | 16f7d0d9 | Dionysis Grigoropoulos | user_id = request.user_uniq |
188 | 16f7d0d9 | Dionysis Grigoropoulos | |
189 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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190 | 16f7d0d9 | Dionysis Grigoropoulos | subnet = Subnet.objects.get(id=sub_id) |
191 | 16f7d0d9 | Dionysis Grigoropoulos | except Subnet.DoesNotExist:
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192 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.ItemNotFound("Subnet not found") |
193 | 16f7d0d9 | Dionysis Grigoropoulos | |
194 | 16f7d0d9 | Dionysis Grigoropoulos | if subnet.network.userid != user_id:
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195 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.failts.Unauthorized("You're not allowed to view this subnet") |
196 | 16f7d0d9 | Dionysis Grigoropoulos | |
197 | 16f7d0d9 | Dionysis Grigoropoulos | subnet_dict = subnet_to_dict(subnet) |
198 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnet': subnet_dict})
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199 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
200 | 16f7d0d9 | Dionysis Grigoropoulos | |
201 | 16f7d0d9 | Dionysis Grigoropoulos | |
202 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='DELETE', user_required=True, logger=log) |
203 | 16f7d0d9 | Dionysis Grigoropoulos | def delete_subnet(request, sub_id): |
204 | 16f7d0d9 | Dionysis Grigoropoulos | """
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205 | 16f7d0d9 | Dionysis Grigoropoulos | Delete a subnet, raises BadRequest
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206 | 16f7d0d9 | Dionysis Grigoropoulos | A subnet is deleted ONLY when the network that it belongs to is deleted
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207 | 16f7d0d9 | Dionysis Grigoropoulos | """
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208 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Deletion of a subnet is not supported") |
209 | 16f7d0d9 | Dionysis Grigoropoulos | |
210 | 16f7d0d9 | Dionysis Grigoropoulos | |
211 | 16f7d0d9 | Dionysis Grigoropoulos | @api.api_method(http_method='PUT', user_required=True, logger=log) |
212 | 16f7d0d9 | Dionysis Grigoropoulos | def update_subnet(request, sub_id): |
213 | 16f7d0d9 | Dionysis Grigoropoulos | """
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214 | 16f7d0d9 | Dionysis Grigoropoulos | Update the fields of a subnet
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215 | 16f7d0d9 | Dionysis Grigoropoulos | Only the name can be updated, everything else returns BadRequest
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216 | 16f7d0d9 | Dionysis Grigoropoulos | """
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217 | 16f7d0d9 | Dionysis Grigoropoulos | |
218 | 16f7d0d9 | Dionysis Grigoropoulos | dictionary = utils.get_request_dict(request) |
219 | 16f7d0d9 | Dionysis Grigoropoulos | log.info('Update subnet %s', dictionary)
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220 | 16f7d0d9 | Dionysis Grigoropoulos | user_id = request.user_uniq |
221 | 16f7d0d9 | Dionysis Grigoropoulos | |
222 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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223 | 16f7d0d9 | Dionysis Grigoropoulos | subnet = dictionary['subnet']
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224 | 16f7d0d9 | Dionysis Grigoropoulos | except KeyError: |
225 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed request") |
226 | 16f7d0d9 | Dionysis Grigoropoulos | |
227 | 16f7d0d9 | Dionysis Grigoropoulos | original_subnet = get_subnet_fromdb(sub_id, user_id) |
228 | 16f7d0d9 | Dionysis Grigoropoulos | original_dict = subnet_to_dict(original_subnet) |
229 | 16f7d0d9 | Dionysis Grigoropoulos | |
230 | 16f7d0d9 | Dionysis Grigoropoulos | if len(subnet) != 1: |
231 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Only the name of subnet can be updated") |
232 | 16f7d0d9 | Dionysis Grigoropoulos | |
233 | 16f7d0d9 | Dionysis Grigoropoulos | name = subnet.get("name", None) |
234 | 16f7d0d9 | Dionysis Grigoropoulos | |
235 | 16f7d0d9 | Dionysis Grigoropoulos | if not name: |
236 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Only the name of subnet can be updated") |
237 | 16f7d0d9 | Dionysis Grigoropoulos | |
238 | 16f7d0d9 | Dionysis Grigoropoulos | check_name_length(name) |
239 | 16f7d0d9 | Dionysis Grigoropoulos | |
240 | 16f7d0d9 | Dionysis Grigoropoulos | try:
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241 | 16f7d0d9 | Dionysis Grigoropoulos | original_subnet.name = name |
242 | 16f7d0d9 | Dionysis Grigoropoulos | original_subnet.save() |
243 | 16f7d0d9 | Dionysis Grigoropoulos | except:
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244 | 16f7d0d9 | Dionysis Grigoropoulos | #Fix me
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245 | 16f7d0d9 | Dionysis Grigoropoulos | return "Unknown Error" |
246 | 16f7d0d9 | Dionysis Grigoropoulos | |
247 | 16f7d0d9 | Dionysis Grigoropoulos | subnet_dict = subnet_to_dict(original_subnet) |
248 | 16f7d0d9 | Dionysis Grigoropoulos | data = json.dumps({'subnet': subnet_dict})
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249 | 16f7d0d9 | Dionysis Grigoropoulos | return HttpResponse(data, status=200) |
250 | 16f7d0d9 | Dionysis Grigoropoulos | |
251 | 16f7d0d9 | Dionysis Grigoropoulos | |
252 | 16f7d0d9 | Dionysis Grigoropoulos | #Utility functions
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253 | 16f7d0d9 | Dionysis Grigoropoulos | def subnet_to_dict(subnet): |
254 | 16f7d0d9 | Dionysis Grigoropoulos | """Returns a dictionary containing the info of a subnet"""
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255 | 911a1bc1 | Dionysis Grigoropoulos | dns = check_empty_lists(subnet.dns_nameservers) |
256 | 911a1bc1 | Dionysis Grigoropoulos | hosts = check_empty_lists(subnet.host_routes) |
257 | 4445f97a | Dionysis Grigoropoulos | allocation_pools = subnet.ip_pools.all() |
258 | 4445f97a | Dionysis Grigoropoulos | pools = list()
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259 | 4445f97a | Dionysis Grigoropoulos | |
260 | 4445f97a | Dionysis Grigoropoulos | if allocation_pools:
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261 | 4445f97a | Dionysis Grigoropoulos | for pool in allocation_pools: |
262 | 4445f97a | Dionysis Grigoropoulos | cidr = IPNetwork(pool.base) |
263 | 4445f97a | Dionysis Grigoropoulos | start = str(cidr.network + pool.offset)
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264 | 4445f97a | Dionysis Grigoropoulos | end = str(cidr.network + pool.offset + pool.size - 1) |
265 | 868e4ce0 | Dionysis Grigoropoulos | pools.append({"start": start, "end": end}) |
266 | 911a1bc1 | Dionysis Grigoropoulos | |
267 | 911a1bc1 | Dionysis Grigoropoulos | dictionary = dict({'id': str(subnet.id), |
268 | 911a1bc1 | Dionysis Grigoropoulos | 'network_id': str(subnet.network.id), |
269 | 911a1bc1 | Dionysis Grigoropoulos | 'name': subnet.name if subnet.name is not None else "", |
270 | 911a1bc1 | Dionysis Grigoropoulos | 'tenant_id': subnet.network.userid,
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271 | 911a1bc1 | Dionysis Grigoropoulos | 'user_id': subnet.network.userid,
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272 | 16f7d0d9 | Dionysis Grigoropoulos | 'gateway_ip': subnet.gateway,
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273 | 911a1bc1 | Dionysis Grigoropoulos | 'ip_version': subnet.ipversion,
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274 | 911a1bc1 | Dionysis Grigoropoulos | 'cidr': subnet.cidr,
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275 | 16f7d0d9 | Dionysis Grigoropoulos | 'enable_dhcp': subnet.dhcp,
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276 | 911a1bc1 | Dionysis Grigoropoulos | 'dns_nameservers': dns,
|
277 | 911a1bc1 | Dionysis Grigoropoulos | 'host_routes': hosts,
|
278 | 4445f97a | Dionysis Grigoropoulos | 'allocation_pools': pools if pools is not None else []}) |
279 | 97ca522f | Dionysis Grigoropoulos | |
280 | 97ca522f | Dionysis Grigoropoulos | if subnet.ipversion == 6: |
281 | 097009bf | Dionysis Grigoropoulos | dictionary['enable_slac'] = subnet.dhcp
|
282 | 97ca522f | Dionysis Grigoropoulos | |
283 | 16f7d0d9 | Dionysis Grigoropoulos | return dictionary
|
284 | 16f7d0d9 | Dionysis Grigoropoulos | |
285 | 16f7d0d9 | Dionysis Grigoropoulos | |
286 | 4445f97a | Dionysis Grigoropoulos | def string_to_ipaddr(pools): |
287 | 4445f97a | Dionysis Grigoropoulos | """
|
288 | 4445f97a | Dionysis Grigoropoulos | Convert [["192.168.42.1", "192.168.42.15"],
|
289 | 4445f97a | Dionysis Grigoropoulos | ["192.168.42.30", "192.168.42.60"]]
|
290 | 4445f97a | Dionysis Grigoropoulos | to
|
291 | 4445f97a | Dionysis Grigoropoulos | [[IPv4Address('192.168.42.1'), IPv4Address('192.168.42.15')],
|
292 | 4445f97a | Dionysis Grigoropoulos | [IPv4Address('192.168.42.30'), IPv4Address('192.168.42.60')]]
|
293 | 4445f97a | Dionysis Grigoropoulos | and sort the output
|
294 | 4445f97a | Dionysis Grigoropoulos | """
|
295 | 4445f97a | Dionysis Grigoropoulos | pool_list = [(map(lambda ip_str: IPAddress(ip_str), pool)) |
296 | 4445f97a | Dionysis Grigoropoulos | for pool in pools] |
297 | 4445f97a | Dionysis Grigoropoulos | pool_list.sort() |
298 | 4445f97a | Dionysis Grigoropoulos | return pool_list
|
299 | 4445f97a | Dionysis Grigoropoulos | |
300 | 4445f97a | Dionysis Grigoropoulos | |
301 | 4445f97a | Dionysis Grigoropoulos | def create_ip_pools(pools, cidr, subnet): |
302 | 4445f97a | Dionysis Grigoropoulos | """Placeholder"""
|
303 | 4445f97a | Dionysis Grigoropoulos | for pool in pools: |
304 | 4445f97a | Dionysis Grigoropoulos | size = int(pool[1]) - int(pool[0]) + 1 |
305 | 4445f97a | Dionysis Grigoropoulos | base = str(cidr)
|
306 | 4445f97a | Dionysis Grigoropoulos | offset = int(pool[0]) - int(cidr.network) |
307 | 4445f97a | Dionysis Grigoropoulos | ip_pool = IPPoolTable.objects.create(size=size, offset=offset, |
308 | 4445f97a | Dionysis Grigoropoulos | base=base, subnet=subnet) |
309 | 4445f97a | Dionysis Grigoropoulos | |
310 | 4445f97a | Dionysis Grigoropoulos | |
311 | 911a1bc1 | Dionysis Grigoropoulos | def check_empty_lists(value): |
312 | 911a1bc1 | Dionysis Grigoropoulos | """Check if value is Null/None, in which case we return an empty list"""
|
313 | 911a1bc1 | Dionysis Grigoropoulos | if value is None: |
314 | 911a1bc1 | Dionysis Grigoropoulos | return []
|
315 | 911a1bc1 | Dionysis Grigoropoulos | return value
|
316 | 911a1bc1 | Dionysis Grigoropoulos | |
317 | 911a1bc1 | Dionysis Grigoropoulos | |
318 | 16f7d0d9 | Dionysis Grigoropoulos | def check_number_of_subnets(network, version): |
319 | 16f7d0d9 | Dionysis Grigoropoulos | """Check if a user can add a subnet in a network"""
|
320 | 6a959c73 | Dionysis Grigoropoulos | if network.subnets.filter(ipversion=version):
|
321 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Only one subnet of IPv4/IPv6 per " |
322 | 16f7d0d9 | Dionysis Grigoropoulos | "network is allowed")
|
323 | 16f7d0d9 | Dionysis Grigoropoulos | |
324 | 16f7d0d9 | Dionysis Grigoropoulos | |
325 | 911a1bc1 | Dionysis Grigoropoulos | def check_boolean_value(value, key): |
326 | 16f7d0d9 | Dionysis Grigoropoulos | """Check if dhcp value is in acceptable values"""
|
327 | 911a1bc1 | Dionysis Grigoropoulos | if value not in [True, False]: |
328 | 911a1bc1 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Malformed request, %s must " |
329 | 911a1bc1 | Dionysis Grigoropoulos | "be True or False" % key)
|
330 | 911a1bc1 | Dionysis Grigoropoulos | return value
|
331 | 16f7d0d9 | Dionysis Grigoropoulos | |
332 | 16f7d0d9 | Dionysis Grigoropoulos | |
333 | 16f7d0d9 | Dionysis Grigoropoulos | def check_name_length(name): |
334 | 16f7d0d9 | Dionysis Grigoropoulos | """Check if the length of a name is within acceptable value"""
|
335 | 16f7d0d9 | Dionysis Grigoropoulos | if len(str(name)) > Subnet.SUBNET_NAME_LENGTH: |
336 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Subnet name too long") |
337 | 16f7d0d9 | Dionysis Grigoropoulos | return name
|
338 | 16f7d0d9 | Dionysis Grigoropoulos | |
339 | 16f7d0d9 | Dionysis Grigoropoulos | |
340 | 16f7d0d9 | Dionysis Grigoropoulos | def check_for_hosts_dns(subnet): |
341 | 16f7d0d9 | Dionysis Grigoropoulos | """
|
342 | 16f7d0d9 | Dionysis Grigoropoulos | Check if a request contains host_routes or dns_nameservers options
|
343 | 16f7d0d9 | Dionysis Grigoropoulos | Expects the request in a dictionary format
|
344 | 16f7d0d9 | Dionysis Grigoropoulos | """
|
345 | 16f7d0d9 | Dionysis Grigoropoulos | if subnet.get('host_routes', None): |
346 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Setting host routes isn't supported") |
347 | 16f7d0d9 | Dionysis Grigoropoulos | if subnet.get('dns_nameservers', None): |
348 | 16f7d0d9 | Dionysis Grigoropoulos | raise api.faults.BadRequest("Setting dns nameservers isn't supported") |
349 | 16f7d0d9 | Dionysis Grigoropoulos | |
350 | 16f7d0d9 | Dionysis Grigoropoulos | |
351 | 16f7d0d9 | Dionysis Grigoropoulos | def get_subnet_fromdb(subnet_id, user_id, for_update=False): |
352 | 16f7d0d9 | Dionysis Grigoropoulos | """
|
353 | 16f7d0d9 | Dionysis Grigoropoulos | Return a Subnet instance or raise ItemNotFound.
|
354 | 16f7d0d9 | Dionysis Grigoropoulos | This is the same as util.get_network
|
355 | 16f7d0d9 | Dionysis Grigoropoulos | """
|
356 | 16f7d0d9 | Dionysis Grigoropoulos | try:
|
357 | 16f7d0d9 | Dionysis Grigoropoulos | subnet_id = int(subnet_id)
|
358 | 16f7d0d9 | Dionysis Grigoropoulos | if for_update:
|
359 | 16f7d0d9 | Dionysis Grigoropoulos | return Subnet.objects.select_for_update().get(id=subnet_id,
|
360 | 16f7d0d9 | Dionysis Grigoropoulos | network__userid= |
361 | 16f7d0d9 | Dionysis Grigoropoulos | user_id) |
362 | 16f7d0d9 | Dionysis Grigoropoulos | return Subnet.objects.get(id=subnet_id, network__userid=user_id)
|
363 | 16f7d0d9 | Dionysis Grigoropoulos | except (ValueError, Subnet.DoesNotExist): |
364 | 911a1bc1 | Dionysis Grigoropoulos | raise api.faults.ItemNotFound('Subnet not found') |
365 | 812a1114 | Dionysis Grigoropoulos | |
366 | 812a1114 | Dionysis Grigoropoulos | |
367 | 812a1114 | Dionysis Grigoropoulos | def parse_ip_pools(pools): |
368 | 812a1114 | Dionysis Grigoropoulos | """
|
369 | 812a1114 | Dionysis Grigoropoulos | Convert [{'start': '192.168.42.1', 'end': '192.168.42.15'},
|
370 | 812a1114 | Dionysis Grigoropoulos | {'start': '192.168.42.30', 'end': '192.168.42.60'}]
|
371 | 812a1114 | Dionysis Grigoropoulos | to
|
372 | 812a1114 | Dionysis Grigoropoulos | [["192.168.42.1", "192.168.42.15"],
|
373 | 812a1114 | Dionysis Grigoropoulos | ["192.168.42.30", "192.168.42.60"]]
|
374 | 812a1114 | Dionysis Grigoropoulos | """
|
375 | 812a1114 | Dionysis Grigoropoulos | pool_list = list()
|
376 | 812a1114 | Dionysis Grigoropoulos | for pool in pools: |
377 | 911a1bc1 | Dionysis Grigoropoulos | parse = [pool["start"], pool["end"]] |
378 | 911a1bc1 | Dionysis Grigoropoulos | pool_list.append(parse) |
379 | 812a1114 | Dionysis Grigoropoulos | return pool_list
|
380 | 812a1114 | Dionysis Grigoropoulos | |
381 | 812a1114 | Dionysis Grigoropoulos | |
382 | 4445f97a | Dionysis Grigoropoulos | def validate_subpools(pool_list, cidr, gateway): |
383 | 812a1114 | Dionysis Grigoropoulos | """
|
384 | 812a1114 | Dionysis Grigoropoulos | Validate the given IP pools are inside the cidr range
|
385 | 812a1114 | Dionysis Grigoropoulos | Validate there are no overlaps in the given pools
|
386 | 911a1bc1 | Dionysis Grigoropoulos | Finally, validate the gateway isn't in the given ip pools
|
387 | 4445f97a | Dionysis Grigoropoulos | Input must be a list containing a sublist with start/end ranges as
|
388 | 4445f97a | Dionysis Grigoropoulos | ipaddr.IPAddress items eg.,
|
389 | 4445f97a | Dionysis Grigoropoulos | [[IPv4Address('192.168.42.11'), IPv4Address('192.168.42.15')],
|
390 | 4445f97a | Dionysis Grigoropoulos | [IPv4Address('192.168.42.30'), IPv4Address('192.168.42.60')]]
|
391 | 812a1114 | Dionysis Grigoropoulos | """
|
392 | 812a1114 | Dionysis Grigoropoulos | if pool_list[0][0] <= cidr.network: |
393 | a996065e | Dionysis Grigoropoulos | raise api.faults.Conflict("IP Pool out of bounds") |
394 | 812a1114 | Dionysis Grigoropoulos | elif pool_list[-1][1] >= cidr.broadcast: |
395 | a996065e | Dionysis Grigoropoulos | raise api.faults.Conflict("IP Pool out of bounds") |
396 | 812a1114 | Dionysis Grigoropoulos | |
397 | 812a1114 | Dionysis Grigoropoulos | for start, end in pool_list: |
398 | 911a1bc1 | Dionysis Grigoropoulos | if start > end:
|
399 | 812a1114 | Dionysis Grigoropoulos | raise api.faults.Conflict("Invalid IP pool range") |
400 | 812a1114 | Dionysis Grigoropoulos | # Raise BadRequest if gateway is inside the pool range
|
401 | 812a1114 | Dionysis Grigoropoulos | if not (gateway < start or gateway > end): |
402 | 812a1114 | Dionysis Grigoropoulos | raise api.faults.Conflict("Gateway cannot be in pool range") |
403 | 812a1114 | Dionysis Grigoropoulos | |
404 | 812a1114 | Dionysis Grigoropoulos | # Check if there is a conflict between the IP Poll ranges
|
405 | 812a1114 | Dionysis Grigoropoulos | end = cidr.network |
406 | 812a1114 | Dionysis Grigoropoulos | for pool in pool_list: |
407 | 911a1bc1 | Dionysis Grigoropoulos | if end >= pool[0]: |
408 | 812a1114 | Dionysis Grigoropoulos | raise api.faults.Conflict("IP Pool range conflict") |
409 | 812a1114 | Dionysis Grigoropoulos | end = pool[1] |