from django.contrib import messages from django.http import HttpResponseRedirect from django.shortcuts import get_object_or_404, render from django.urls import reverse from django.utils.translation import ugettext_lazy as _ from libvirt import libvirtError from admin.decorators import superuser_only from computes.models import Compute from networks.forms import AddNetPool from vrtManager.network import network_size, wvmNetwork, wvmNetworks @superuser_only def networks(request, compute_id): """ :param request: :param compute_id: :return: """ error_messages = [] compute = get_object_or_404(Compute, pk=compute_id) try: conn = wvmNetworks( compute.hostname, compute.login, compute.password, compute.type, ) networks = conn.get_networks_info() dhcp4 = netmask4 = gateway4 = '' dhcp6 = prefix6 = gateway6 = '' ipv4 = ipv6 = False if request.method == 'POST': if 'create' in request.POST: form = AddNetPool(request.POST) if form.is_valid(): data = form.cleaned_data if data['name'] in networks: msg = _("Network pool name already in use") error_messages.append(msg) if data['forward'] == 'bridge' and data['bridge_name'] == '': error_messages.append(_('Please enter bridge name')) if data['subnet']: ipv4 = True gateway4, netmask4, dhcp4 = network_size(data['subnet'], data['dhcp4']) if data['subnet6']: ipv6 = True gateway6, prefix6, dhcp6 = network_size(data['subnet6'], data['dhcp6']) if prefix6 != '64': error_messages.append(_('For libvirt, the IPv6 network prefix must be /64')) if not error_messages: conn.create_network( data['name'], data['forward'], ipv4, gateway4, netmask4, dhcp4, ipv6, gateway6, prefix6, dhcp6, data['bridge_name'], data['openvswitch'], data['fixed'], ) return HttpResponseRedirect(reverse('network', args=[compute_id, data['name']])) else: for msg_err in form.errors.values(): error_messages.append(msg_err.as_text()) conn.close() except libvirtError as lib_err: error_messages.append(lib_err) return render(request, 'networks.html', locals()) @superuser_only def network(request, compute_id, pool): """ :param request: :param compute_id: :param pool: :return: """ error_messages = [] compute = get_object_or_404(Compute, pk=compute_id) try: conn = wvmNetwork( compute.hostname, compute.login, compute.password, compute.type, pool, ) networks = conn.get_networks() state = conn.is_active() device = conn.get_bridge_device() autostart = conn.get_autostart() net_mac = conn.get_network_mac() net_forward = conn.get_network_forward() qos = conn.get_qos() dhcp_range_start = ipv4_dhcp_range_end = dict() ip_networks = conn.get_ip_networks() for family, ip_network in ip_networks.items(): if family == "ipv4": ipv4_dhcp_range_start = conn.get_dhcp_range_start(family) ipv4_dhcp_range_end = conn.get_dhcp_range_end(family) ipv4_network = ip_network ipv4_fixed_address = conn.get_dhcp_host_addr(family) elif family == "ipv6": ipv6_dhcp_range_start = conn.get_dhcp_range_start(family) ipv6_dhcp_range_end = conn.get_dhcp_range_end(family) ipv6_network = ip_network ipv6_fixed_address = conn.get_dhcp_host_addr(family) else: raise Exception(_("Unknown Network Family")) xml = conn._XMLDesc(0) except libvirtError as lib_err: error_messages.append(lib_err) return HttpResponseRedirect(reverse('networks', args=compute_id)) if request.method == 'POST': if 'start' in request.POST: try: conn.start() return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) if 'stop' in request.POST: try: conn.stop() return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) if 'delete' in request.POST: try: conn.delete() return HttpResponseRedirect(reverse('networks', args=[compute_id])) except libvirtError as lib_err: error_messages.append(lib_err) if 'set_autostart' in request.POST: try: conn.set_autostart(1) return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) if 'unset_autostart' in request.POST: try: conn.set_autostart(0) return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) if 'modify_fixed_address' in request.POST: name = request.POST.get('name', '') address = request.POST.get('address', '') family = request.POST.get('family', 'ipv4') if family == 'ipv4': mac_duid = request.POST.get('mac', '') if family == 'ipv6': mac_duid = request.POST.get('id', '') try: ret_val = conn.modify_fixed_address(name, address, mac_duid, family) messages.success(request, _(f"{family.upper()} Fixed Address Operation Completed.")) return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) except ValueError as val_err: error_messages.append(val_err) if 'delete_fixed_address' in request.POST: ip = request.POST.get('address', '') family = request.POST.get('family', 'ipv4') conn.delete_fixed_address(ip, family) messages.success(request, _(f"{family.upper()} Fixed Address is Deleted.")) return HttpResponseRedirect(request.get_full_path()) if 'modify_dhcp_range' in request.POST: range_start = request.POST.get('range_start', '') range_end = request.POST.get('range_end', '') family = request.POST.get('family', 'ipv4') try: conn.modify_dhcp_range(range_start, range_end, family) messages.success(request, _(f"{family.upper()} DHCP Range is Changed.")) return HttpResponseRedirect(request.get_full_path()) except libvirtError as lib_err: error_messages.append(lib_err) if 'edit_network' in request.POST: edit_xml = request.POST.get('edit_xml', '') if edit_xml: conn.edit_network(edit_xml) if conn.is_active(): messages.success(request, _("Network XML is changed. \\" "Stop and start network to activate new config.")) else: messages.success(request, _("Network XML is changed.")) return HttpResponseRedirect(request.get_full_path()) if 'set_qos' in request.POST: qos_dir = request.POST.get('qos_direction', '') average = request.POST.get('qos_average') or 0 peak = request.POST.get('qos_peak') or 0 burst = request.POST.get('qos_burst') or 0 try: conn.set_qos(qos_dir, average, peak, burst) if conn.is_active(): messages.success( request, _(f"{qos_dir.capitalize()} QoS is set. Network XML is changed.") + _("Stop and start network to activate new config")) else: messages.success(request, _("{} QoS is set").format(qos_dir.capitalize())) except libvirtError as lib_err: messages.error(request, lib_err) return HttpResponseRedirect(request.get_full_path()) if 'unset_qos' in request.POST: qos_dir = request.POST.get('qos_direction', '') conn.unset_qos(qos_dir) if conn.is_active(): messages.success( request, _(f"{qos_dir.capitalize()} QoS is deleted. Network XML is changed. ") + _("Stop and start network to activate new config.")) else: messages.success(request, _(f"{qos_dir.capitalize()} QoS is deleted")) return HttpResponseRedirect(request.get_full_path()) conn.close() return render(request, 'network.html', locals())