289 lines
10 KiB
Python
289 lines
10 KiB
Python
#
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# Copyright 2009, 2013 Red Hat, Inc.
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# Cole Robinson <crobinso@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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from virtinst import VirtualDevice
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from virtinst.xmlbuilder import XMLProperty
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class _VirtualCharDevice(VirtualDevice):
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"""
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Base class for all character devices. Shouldn't be instantiated
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directly.
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"""
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TYPE_PTY = "pty"
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TYPE_DEV = "dev"
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TYPE_STDIO = "stdio"
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TYPE_PIPE = "pipe"
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TYPE_FILE = "file"
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TYPE_VC = "vc"
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TYPE_NULL = "null"
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TYPE_TCP = "tcp"
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TYPE_UDP = "udp"
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TYPE_UNIX = "unix"
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TYPE_SPICEVMC = "spicevmc"
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# We don't list the non-UI friendly types here
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_TYPES_FOR_ALL = [TYPE_PTY, TYPE_DEV, TYPE_FILE,
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TYPE_TCP, TYPE_UDP, TYPE_UNIX]
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_TYPES_FOR_CHANNEL = [TYPE_SPICEVMC]
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TYPES = _TYPES_FOR_ALL
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MODE_CONNECT = "connect"
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MODE_BIND = "bind"
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MODES = [MODE_CONNECT, MODE_BIND]
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PROTOCOL_RAW = "raw"
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PROTOCOL_TELNET = "telnet"
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PROTOCOLS = [PROTOCOL_RAW, PROTOCOL_TELNET]
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CHANNEL_TARGET_GUESTFWD = "guestfwd"
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CHANNEL_TARGET_VIRTIO = "virtio"
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CHANNEL_TARGETS = [CHANNEL_TARGET_GUESTFWD,
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CHANNEL_TARGET_VIRTIO]
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CONSOLE_TARGET_SERIAL = "serial"
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CONSOLE_TARGET_UML = "uml"
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CONSOLE_TARGET_XEN = "xen"
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CONSOLE_TARGET_VIRTIO = "virtio"
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CONSOLE_TARGETS = [CONSOLE_TARGET_SERIAL, CONSOLE_TARGET_UML,
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CONSOLE_TARGET_XEN, CONSOLE_TARGET_VIRTIO]
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CHANNEL_NAME_SPICE = "com.redhat.spice.0"
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CHANNEL_NAME_QEMUGA = "org.qemu.guest_agent.0"
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CHANNEL_NAME_LIBGUESTFS = "org.libguestfs.channel.0"
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CHANNEL_NAMES = [CHANNEL_NAME_SPICE,
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CHANNEL_NAME_QEMUGA,
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CHANNEL_NAME_LIBGUESTFS]
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@staticmethod
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def pretty_channel_name(val):
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if val == _VirtualCharDevice.CHANNEL_NAME_SPICE:
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return "spice"
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if val == _VirtualCharDevice.CHANNEL_NAME_QEMUGA:
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return "qemu-ga"
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if val == _VirtualCharDevice.CHANNEL_NAME_LIBGUESTFS:
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return "libguestfs"
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return None
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@staticmethod
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def pretty_type(ctype):
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"""
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Return a human readable description of the passed char type
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"""
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desc = ""
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if ctype == _VirtualCharDevice.TYPE_PTY:
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desc = _("Pseudo TTY")
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elif ctype == _VirtualCharDevice.TYPE_DEV:
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desc = _("Physical host character device")
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elif ctype == _VirtualCharDevice.TYPE_STDIO:
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desc = _("Standard input/output")
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elif ctype == _VirtualCharDevice.TYPE_PIPE:
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desc = _("Named pipe")
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elif ctype == _VirtualCharDevice.TYPE_FILE:
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desc = _("Output to a file")
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elif ctype == _VirtualCharDevice.TYPE_VC:
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desc = _("Virtual console")
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elif ctype == _VirtualCharDevice.TYPE_NULL:
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desc = _("Null device")
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elif ctype == _VirtualCharDevice.TYPE_TCP:
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desc = _("TCP net console")
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elif ctype == _VirtualCharDevice.TYPE_UDP:
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desc = _("UDP net console")
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elif ctype == _VirtualCharDevice.TYPE_UNIX:
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desc = _("Unix socket")
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elif ctype == _VirtualCharDevice.TYPE_SPICEVMC:
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desc = _("Spice agent")
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return desc
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@staticmethod
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def pretty_mode(char_mode):
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"""
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Return a human readable description of the passed char type
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"""
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desc = ""
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if char_mode == _VirtualCharDevice.MODE_CONNECT:
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desc = _("Client mode")
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elif char_mode == _VirtualCharDevice.MODE_BIND:
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desc = _("Server mode")
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return desc
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def supports_property(self, propname, ro=False):
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"""
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Whether the character dev type supports the passed property name
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"""
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users = {
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"source_path" : [self.TYPE_FILE, self.TYPE_UNIX,
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self.TYPE_DEV, self.TYPE_PIPE],
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"source_mode" : [self.TYPE_UNIX, self.TYPE_TCP],
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"source_host" : [self.TYPE_TCP, self.TYPE_UDP],
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"source_port" : [self.TYPE_TCP, self.TYPE_UDP],
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"protocol" : [self.TYPE_TCP],
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"bind_host" : [self.TYPE_UDP],
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"bind_port" : [self.TYPE_UDP],
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}
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if ro:
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users["source_path"] += [self.TYPE_PTY]
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if users.get(propname):
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return self.type in users[propname]
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return hasattr(self, propname)
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_XML_PROP_ORDER = ["type", "_has_mode_bind", "_has_mode_connect",
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"bind_host", "bind_port",
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"source_mode", "_source_path",
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"source_host", "source_port",
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"target_type", "target_name"]
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type = XMLProperty(
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doc=_("Method used to expose character device in the host."),
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xpath="./@type")
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_tty = XMLProperty("./@tty")
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_source_path = XMLProperty(xpath="./source/@path",
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doc=_("Host input path to attach to the guest."))
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def _get_source_path(self):
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source = self._source_path
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if source is None and self._tty:
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return self._tty
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return source
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def _set_source_path(self, val):
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self._source_path = val
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source_path = property(_get_source_path, _set_source_path)
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def _get_default_source_mode(self):
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if self.type == self.TYPE_UDP:
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return self.MODE_CONNECT
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if not self.supports_property("source_mode"):
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return None
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return self.MODE_BIND
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def _make_sourcemode_xpath(self):
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if self.type == self.TYPE_UDP:
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return "./source[@mode='connect']/@mode"
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return "./source/@mode"
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source_mode = XMLProperty(name="char sourcemode",
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doc=_("Target connect/listen mode."),
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make_xpath_cb=_make_sourcemode_xpath,
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default_cb=_get_default_source_mode)
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def _get_default_sourcehost(self):
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if not self.supports_property("source_host"):
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return None
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return "127.0.0.1"
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def _set_source_validate(self, val):
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if val is None or self.type != self.TYPE_UDP:
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return val
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if not self._has_mode_connect:
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self._has_mode_connect = self.MODE_CONNECT
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return val
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def _make_sourcehost_xpath(self):
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mode = self.source_mode
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if self.type == self.TYPE_UDP:
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mode = "connect"
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return "./source[@mode='%s']/@host" % mode
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source_host = XMLProperty(name="char sourcehost",
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doc=_("Address to connect/listen to."),
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make_xpath_cb=_make_sourcehost_xpath,
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default_cb=_get_default_sourcehost,
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set_converter=_set_source_validate)
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def _make_sourceport_xpath(self):
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return "./source[@mode='%s']/@service" % self.source_mode
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source_port = XMLProperty(name="char sourceport",
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doc=_("Port on target host to connect/listen to."),
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make_xpath_cb=_make_sourceport_xpath,
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set_converter=_set_source_validate, is_int=True)
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_has_mode_connect = XMLProperty("./source[@mode='connect']/@mode")
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_has_mode_bind = XMLProperty("./source[@mode='bind']/@mode")
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def _set_bind_validate(self, val):
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if val is None:
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return None
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if not self._has_mode_bind:
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self._has_mode_bind = self.MODE_BIND
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return val
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bind_host = XMLProperty("./source[@mode='bind']/@host",
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doc=_("Host address to bind to."),
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set_converter=_set_bind_validate)
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bind_port = XMLProperty("./source[@mode='bind']/@service",
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doc=_("Host port to bind to."),
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set_converter=_set_bind_validate, is_int=True)
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def _get_default_protocol(self):
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if not self.supports_property("protocol"):
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return None
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return self.PROTOCOL_RAW
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protocol = XMLProperty("./protocol/@type",
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doc=_("Format used when sending data."),
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default_cb=_get_default_protocol)
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def _get_default_target_type(self):
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if self.virtual_device_type == "channel":
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return self.CHANNEL_TARGET_VIRTIO
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return None
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target_type = XMLProperty("./target/@type",
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doc=_("Channel type as exposed in the guest."),
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default_cb=_get_default_target_type)
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target_address = XMLProperty("./target/@address",
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doc=_("Guest forward channel address in the guest."))
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target_port = XMLProperty("./target/@port", is_int=True,
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doc=_("Guest forward channel port in the guest."))
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def _default_target_name(self):
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if self.type == self.TYPE_SPICEVMC:
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return self.CHANNEL_NAME_SPICE
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return None
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target_name = XMLProperty("./target/@name",
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doc=_("Sysfs name of virtio port in the guest"),
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default_cb=_default_target_name)
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class VirtualConsoleDevice(_VirtualCharDevice):
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virtual_device_type = "console"
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TYPES = [_VirtualCharDevice.TYPE_PTY]
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class VirtualSerialDevice(_VirtualCharDevice):
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virtual_device_type = "serial"
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class VirtualParallelDevice(_VirtualCharDevice):
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virtual_device_type = "parallel"
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class VirtualChannelDevice(_VirtualCharDevice):
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virtual_device_type = "channel"
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TYPES = (_VirtualCharDevice._TYPES_FOR_CHANNEL +
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_VirtualCharDevice._TYPES_FOR_ALL)
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VirtualConsoleDevice.register_type()
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VirtualSerialDevice.register_type()
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VirtualParallelDevice.register_type()
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VirtualChannelDevice.register_type()
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