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virt-manager/virtManager/createnet.py
Cole Robinson 1752b22828 createnet: Drop _validate routines 
It's a mix of stuff libvirt already catches, UI sanity checking
like if user specified an empty field, and prompting for really
obscure corner cases. This stuff isn't important enough to carry
around all this code IMO
2019-05-13 12:08:55 -04:00

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Python
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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
import logging
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import Pango
from virtinst import Network
from . import uiutil
from .asyncjob import vmmAsyncJob
from .baseclass import vmmGObjectUI
_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.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):
logging.debug("Showing new network wizard")
self.reset_state()
self.topwin.set_transient_for(parent)
self.topwin.present()
def close(self, ignore1=None, ignore2=None):
logging.debug("Closing new network wizard")
self.topwin.hide()
return 1
def _cleanup(self):
self.conn = None
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):
default_name = Network.find_free_name(
self.conn.get_backend(), "network")
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 pcidev.xmlobj.capability_type != "virt_functions":
continue
devdesc = pcidev.xmlobj.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 _build_xmlobj(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 _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
net.install()
def finish(self, ignore):
try:
net = self._build_xmlobj()
net.validate()
except Exception as e:
self.err.show_err(_("Error generating network xml: %s") % str(e))
return
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()
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