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virt-manager/virtManager/createnet.py
Cole Robinson f107e39989 Switch to more traditional logging structure 
Init a shared log instance in virtinst/logger.py, and use that
throughout the code base, so we aren't calling directly into
'logging'. This helps protect our logging output from being
cluttered with other library output, as happens with some
'requests' usage
2019-06-17 00:12:31 -04:00

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# Copyright (C) 2006-2007, 2013 Red Hat, Inc.
# Copyright (C) 2006 Hugh O. Brock <hbrock@redhat.com>
#
# This work is licensed under the GNU GPLv2 or later.
# See the COPYING file in the top-level directory.
import ipaddress
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import Pango
import libvirt
from virtinst import generatename
from virtinst import log
from virtinst import Network
from . import uiutil
from .asyncjob import vmmAsyncJob
from .baseclass import vmmGObjectUI
from .xmleditor import vmmXMLEditor
_green = Gdk.Color.parse("#c0ffc0")[1]
_red = Gdk.Color.parse("#ffc0c0")[1]
_black = Gdk.Color.parse("#000000")[1]
_white = Gdk.Color.parse("#f0f0f0")[1]
def _make_ipaddr(addrstr):
if addrstr is None:
return None
try:
return ipaddress.ip_network(str(addrstr), strict=False)
except Exception:
return None
class vmmCreateNetwork(vmmGObjectUI):
def __init__(self, conn):
vmmGObjectUI.__init__(self, "createnet.ui", "vmm-create-net")
self.conn = conn
self._xmleditor = vmmXMLEditor(self.builder, self.topwin,
self.widget("net-details-align"),
self.widget("net-details"))
self._xmleditor.connect("xml-requested",
self._xmleditor_xml_requested_cb)
self.builder.connect_signals({
"on_create_cancel_clicked": self.close,
"on_vmm_create_delete_event": self.close,
"on_create_finish_clicked": self.finish,
"on_net_forward_mode_changed": self._net_forward_mode_changed_cb,
"on_net_dns_use_toggled": self._net_dns_use_toggled_cb,
"on_net-ipv4-enable_toggled": self.change_ipv4_enable,
"on_net-ipv4-network_changed": self.change_ipv4_network,
"on_net-dhcpv4-enable_toggled": self.change_dhcpv4_enable,
"on_net-dhcpv4-start_changed": self.change_dhcpv4_start,
"on_net-dhcpv4-end_changed": self.change_dhcpv4_end,
"on_net-ipv6-enable_toggled": self.change_ipv6_enable,
"on_net-ipv6-network_changed": self.change_ipv6_network,
"on_net-dhcpv6-enable_toggled": self.change_dhcpv6_enable,
"on_net-dhcpv6-start_changed": self.change_dhcpv6_start,
"on_net-dhcpv6-end_changed": self.change_dhcpv6_end,
})
self.bind_escape_key_close()
self.set_initial_state()
####################
# Standard methods #
####################
def show(self, parent):
log.debug("Showing new network wizard")
self.reset_state()
self.topwin.set_transient_for(parent)
self.topwin.present()
def close(self, ignore1=None, ignore2=None):
log.debug("Closing new network wizard")
self.topwin.hide()
return 1
def _cleanup(self):
self.conn = None
self._xmleditor.cleanup()
self._xmleditor = None
###########
# UI init #
###########
def set_initial_state(self):
blue = Gdk.Color.parse("#0072A8")[1]
self.widget("header").modify_bg(Gtk.StateType.NORMAL, blue)
# [ label, dev name ]
pf_list = self.widget("net-hostdevs")
pf_model = Gtk.ListStore(str, str)
pf_list.set_model(pf_model)
text = uiutil.init_combo_text_column(pf_list, 1)
text.set_property("ellipsize", Pango.EllipsizeMode.MIDDLE)
# [ label, dev name ]
fw_list = self.widget("net-forward-device")
fw_model = Gtk.ListStore(str, str)
fw_list.set_model(fw_model)
uiutil.init_combo_text_column(fw_list, 1)
# [ label, mode ]
mode_list = self.widget("net-forward-mode")
mode_model = Gtk.ListStore(str, str)
mode_list.set_model(mode_model)
uiutil.init_combo_text_column(mode_list, 1)
mode_model.append(["nat", _("NAT")])
mode_model.append(["route", _("Routed")])
mode_model.append(["open", _("Open")])
mode_model.append(["isolated", _("Isolated")])
mode_model.append(["hostdev", _("SR-IOV pool")])
def reset_state(self):
self._xmleditor.reset_state()
basename = "network"
def cb(n):
return generatename.check_libvirt_collision(
self.conn.get_backend().networkLookupByName, n)
default_name = generatename.generate_name(basename, cb)
self.widget("net-name").set_text(default_name)
self.widget("net-dns-use-netname").set_active(True)
self.widget("net-ipv4-expander").set_visible(True)
self.widget("net-ipv4-expander").set_expanded(False)
self.widget("net-ipv6-expander").set_visible(True)
self.widget("net-ipv6-expander").set_expanded(False)
self.widget("net-dns-expander").set_visible(True)
self.widget("net-dns-expander").set_expanded(False)
self.widget("net-ipv4-enable").set_active(True)
self.widget("net-ipv4-network").set_text("192.168.100.0/24")
self.widget("net-dhcpv4-enable").set_active(True)
self.widget("net-dhcpv4-start").set_text("192.168.100.128")
self.widget("net-dhcpv4-end").set_text("192.168.100.254")
self.widget("net-ipv6-enable").set_active(False)
self.widget("net-ipv6-network").set_text("")
self.widget("net-dhcpv6-enable").set_active(False)
self.widget("net-dhcpv6-start").set_text("")
self.widget("net-dhcpv6-end").set_text("")
# Populate physical forward devices
devnames = []
for nodedev in self.conn.filter_nodedevs("net"):
devnames.append(nodedev.xmlobj.interface)
for iface in self.conn.list_interfaces():
if iface.get_name() not in devnames:
devnames.append(iface.get_name())
fw_model = self.widget("net-forward-device").get_model()
fw_model.clear()
fw_model.append([None, _("Any physical device")])
for name in devnames:
fw_model.append([name, _("Physical device %s") % name])
self.widget("net-forward-device").set_active(0)
self.widget("net-forward-mode").set_active(0)
# Populate hostdev forward devices
devprettynames = []
ifnames = []
for pcidev in self.conn.filter_nodedevs("pci"):
if not pcidev.xmlobj.is_pci_sriov():
continue
devdesc = pcidev.pretty_name()
for netdev in self.conn.filter_nodedevs("net"):
if pcidev.xmlobj.name != netdev.xmlobj.parent:
continue
ifname = netdev.xmlobj.interface
devprettyname = "%s (%s)" % (ifname, devdesc)
devprettynames.append(devprettyname)
ifnames.append(ifname)
break
pf_model = self.widget("net-hostdevs").get_model()
pf_model.clear()
for devprettyname, ifname in zip(devprettynames, ifnames):
pf_model.append([ifname, devprettyname])
if len(pf_model) == 0:
pf_model.append([None, _("No available device")])
self.widget("net-hostdevs").set_active(0)
##################
# UI get helpers #
##################
def get_config_ipv4_enable(self):
return (self.widget("net-ipv4-expander").is_visible() and
self.widget("net-ipv4-enable").get_active())
def get_config_ipv6_enable(self):
return (self.widget("net-ipv6-expander").is_visible() and
self.widget("net-ipv6-enable").get_active())
def get_config_dhcpv4_enable(self):
return self.widget("net-dhcpv4-enable").get_active()
def get_config_dhcpv6_enable(self):
return self.widget("net-dhcpv6-enable").get_active()
def get_config_domain_name(self):
widget = self.widget("net-domain-name")
if not widget.is_visible():
return None
if self.widget("net-dns-use-netname").get_active():
return self.widget("net-name").get_text()
return widget.get_text()
def _get_network_helper(self, widgetname):
widget = self.widget(widgetname)
if not widget.is_visible() or not widget.is_sensitive():
return None
return _make_ipaddr(widget.get_text())
def get_config_ip4(self):
return self._get_network_helper("net-ipv4-network")
def get_config_dhcpv4_start(self):
return self._get_network_helper("net-dhcpv4-start")
def get_config_dhcpv4_end(self):
return self._get_network_helper("net-dhcpv4-end")
def get_config_ip6(self):
return self._get_network_helper("net-ipv6-network")
def get_config_dhcpv6_start(self):
return self._get_network_helper("net-dhcpv6-start")
def get_config_dhcpv6_end(self):
return self._get_network_helper("net-dhcpv6-end")
def get_config_forwarding(self):
mode = uiutil.get_list_selection(self.widget("net-forward-mode"))
if mode == "isolated":
return [None, None]
if mode == "hostdev":
dev = uiutil.get_list_selection(self.widget("net-hostdevs"))
else:
dev = uiutil.get_list_selection(self.widget("net-forward-device"))
return [dev, mode]
#############
# Listeners #
#############
def _net_forward_mode_changed_cb(self, src):
mode = uiutil.get_list_selection(self.widget("net-forward-mode"))
fw_visible = mode not in ["open", "isolated", "hostdev"]
is_hostdev = mode in ["hostdev"]
uiutil.set_grid_row_visible(
self.widget("net-forward-device"), fw_visible)
uiutil.set_grid_row_visible(self.widget("net-hostdevs"), is_hostdev)
self.widget("net-ipv4-expander").set_visible(not is_hostdev)
self.widget("net-ipv6-expander").set_visible(not is_hostdev)
self.widget("net-dns-expander").set_visible(not is_hostdev)
def _net_dns_use_toggled_cb(self, src):
custom = self.widget("net-dns-use-custom").get_active()
self.widget("net-domain-name").set_sensitive(custom)
def change_ipv4_enable(self, ignore):
enabled = self.get_config_ipv4_enable()
self.widget("net-ipv4-box").set_visible(enabled)
def change_ipv6_enable(self, ignore):
enabled = self.get_config_ipv6_enable()
self.widget("net-ipv6-box").set_visible(enabled)
def change_dhcpv4_enable(self, ignore):
enabled = self.get_config_dhcpv4_enable()
start = self.widget("net-dhcpv4-start")
end = self.widget("net-dhcpv4-end")
uiutil.set_grid_row_visible(start, enabled)
uiutil.set_grid_row_visible(end, enabled)
def change_dhcpv6_enable(self, ignore):
enabled = self.get_config_dhcpv6_enable()
start = self.widget("net-dhcpv6-start")
end = self.widget("net-dhcpv6-end")
uiutil.set_grid_row_visible(start, enabled)
uiutil.set_grid_row_visible(end, enabled)
def change_dhcpv4_start(self, src):
start = self.get_config_dhcpv4_start()
self.change_dhcpv4(src, start)
def change_dhcpv4_end(self, src):
end = self.get_config_dhcpv4_end()
self.change_dhcpv4(src, end)
def change_dhcpv4(self, src, addr):
ip = self.get_config_ip4()
if ip is None or addr is None:
src.modify_bg(Gtk.StateType.NORMAL, _white)
return
if addr.version != 4 or not ip.overlaps(addr):
src.modify_bg(Gtk.StateType.NORMAL, _red)
else:
src.modify_bg(Gtk.StateType.NORMAL, _green)
def change_dhcpv6_start(self, src):
start = self.get_config_dhcpv6_start()
self.change_dhcpv6(src, start)
def change_dhcpv6_end(self, src):
end = self.get_config_dhcpv6_end()
self.change_dhcpv6(src, end)
def change_dhcpv6(self, src, addr):
ip = self.get_config_ip6()
if ip is None or addr is None:
src.modify_bg(Gtk.StateType.NORMAL, _white)
return
if addr.version != 6 or not ip.overlaps(addr):
src.modify_bg(Gtk.StateType.NORMAL, _red)
else:
src.modify_bg(Gtk.StateType.NORMAL, _green)
def change_ipv4_network(self, src):
ip = self.get_config_ip4()
# No IP specified or invalid IP
if ip is None or ip.version != 4:
src.modify_bg(Gtk.StateType.NORMAL, _red)
return
valid_ip = (ip.num_addresses >= 8 and ip.is_private)
start = int(ip.num_addresses // 2)
end = int(ip.num_addresses - 2)
src.modify_bg(Gtk.StateType.NORMAL, valid_ip and _green or _red)
self.widget("net-dhcpv4-start").set_text(
str(ip.network_address + start)
)
self.widget("net-dhcpv4-end").set_text(str(ip.network_address + end))
def change_ipv6_network(self, src):
ip = self.get_config_ip6()
if ip is None or ip.version != 6:
src.modify_bg(Gtk.StateType.NORMAL, _red)
return
valid_ip = (ip.num_addresses == 64 and ip.is_private)
start = 256
end = 512 - 1
src.modify_bg(Gtk.StateType.NORMAL, valid_ip and _green or _red)
self.widget("net-dhcpv6-start").set_text(
str(ip.network_address + start)
)
self.widget("net-dhcpv6-end").set_text(str(ip.network_address + end))
#########################
# XML build and install #
#########################
def _validate(self, net):
net.validate_generic_name(_("Network"), net.name)
try:
net.conn.networkLookupByName(net.name)
except libvirt.libvirtError:
return
raise ValueError(_("Name '%s' already in use by another network." %
net.name))
def _build_xmlobj_from_xmleditor(self):
xml = self._xmleditor.get_xml()
log.debug("Using XML from xmleditor:\n%s", xml)
return Network(self.conn.get_backend(), parsexml=xml)
def _build_xmlobj_from_ui(self):
net = Network(self.conn.get_backend())
net.name = self.widget("net-name").get_text()
net.domain_name = self.get_config_domain_name()
dev, mode = self.get_config_forwarding()
if mode:
net.forward.mode = mode
if mode == "open":
net.forward.dev = None
else:
net.forward.dev = dev or None
if net.forward.mode == "hostdev":
net.forward.managed = "yes"
pfobj = net.forward.pf.add_new()
pfobj.dev = net.forward.dev
net.forward.dev = None
return net
if self.get_config_ipv4_enable():
ip = self.get_config_ip4()
ipobj = net.ips.add_new()
ipobj.address = str(ip.network_address + 1)
ipobj.netmask = str(ip.netmask)
if self.get_config_dhcpv4_enable():
dhcpobj = ipobj.ranges.add_new()
dhcpobj.start = str(
self.get_config_dhcpv4_start().network_address
)
dhcpobj.end = str(self.get_config_dhcpv4_end().network_address)
if self.get_config_ipv6_enable():
ip = self.get_config_ip6()
ipobj = net.ips.add_new()
ipobj.family = "ipv6"
ipobj.address = str(ip.network_address + 1)
ipobj.prefix = str(ip.prefixlen)
if self.get_config_dhcpv6_enable():
dhcpobj = ipobj.ranges.add_new()
dhcpobj.start = str(
self.get_config_dhcpv6_start().network_address
)
dhcpobj.end = str(
self.get_config_dhcpv6_end().network_address
)
return net
def _build_xmlobj(self, check_xmleditor):
try:
xmlobj = self._build_xmlobj_from_ui()
if check_xmleditor and self._xmleditor.is_xml_selected():
xmlobj = self._build_xmlobj_from_xmleditor()
return xmlobj
except Exception as e:
self.err.show_err(_("Error building XML: %s") % str(e))
def _finish_cb(self, error, details):
self.reset_finish_cursor()
if error:
error = _("Error creating virtual network: %s") % str(error)
self.err.show_err(error, details=details)
else:
self.conn.schedule_priority_tick(pollnet=True)
self.close()
def _async_net_create(self, asyncjob, net):
ignore = asyncjob
xml = net.get_xml()
log.debug("Creating virtual network '%s' with xml:\n%s",
net.name, xml)
netobj = self.conn.get_backend().networkDefineXML(xml)
try:
netobj.create()
netobj.setAutostart(True)
except Exception:
netobj.undefine()
raise
def finish(self, ignore):
net = self._build_xmlobj(check_xmleditor=True)
if not net:
return
try:
self._validate(net)
except Exception as e:
return self.err.show_err(
_("Error validating network: %s") % e)
self.set_finish_cursor()
progWin = vmmAsyncJob(self._async_net_create, [net],
self._finish_cb, [],
_("Creating virtual network..."),
_("Creating the virtual network may take a "
"while..."),
self.topwin)
progWin.run()
################
# UI listeners #
################
def _xmleditor_xml_requested_cb(self, src):
xmlobj = self._build_xmlobj(check_xmleditor=False)
self._xmleditor.set_xml(xmlobj and xmlobj.get_xml() or "")
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