def parse_disk_entry(vm, fullkey, value):
"""
Parse a particular key/value for a disk. FIXME: this should be a
lot smarter.
"""
# skip bus values, e.g. 'scsi0.present = "TRUE"'
if re.match(r"^(scsi|ide)[0-9]+[^:]", fullkey):
return
ignore, bus, bus_nr, inst, key = re.split(r"^(scsi|ide)([0-9]+):([0-9]+)\.",
fullkey)
lvalue = value.lower()
if key == "present" and lvalue == "false":
return
# Does anyone else think it's scary that we're still doing things
# like this?
if bus == "ide":
inst = int(bus_nr) * 2 + (int(inst) % 2)
elif bus == "scsi":
inst = int(bus_nr) * 16 + (int(inst) % 16)
devid = (bus, inst)
if not vm.disks.get(devid):
vm.disks[devid] = diskcfg.disk(bus=bus,
typ=diskcfg.DISK_TYPE_DISK)
disk = vm.disks[devid]
if key == "devicetype":
if lvalue == "atapi-cdrom" or lvalue == "cdrom-raw":
disk.type = diskcfg.DISK_TYPE_CDROM
elif lvalue == "cdrom-image":
disk.type = diskcfg.DISK_TYPE_ISO
if key == "filename":
disk.path = value
disk.format = diskcfg.DISK_FORMAT_RAW
if lvalue.endswith(".vmdk"):
disk.format = diskcfg.DISK_FORMAT_VMDK
# See if the filename is actually a VMDK descriptor file
parse_vmdk(disk, disk.path)
def _parse_hw_section(vm, nodes, file_refs, disk_section):
vm.nr_vcpus = 0
disk_buses = {}
for device_node in nodes:
if device_node.name != "Item":
continue
devtype = None
for item_node in node_list(device_node):
if item_node.name == "ResourceType":
devtype = item_node.content
if devtype == DEVICE_CPU:
cpus = get_child_content(device_node, "VirtualQuantity")
if cpus:
vm.nr_vcpus += int(cpus)
elif devtype == DEVICE_MEMORY:
mem = get_child_content(device_node, "VirtualQuantity")
alloc_str = get_child_content(device_node, "AllocationUnits")
if mem:
vm.memory = convert_alloc_val(alloc_str, mem)
elif devtype == DEVICE_ETHERNET:
net_model = get_child_content(device_node, "ResourceSubType")
if net_model:
net_model = net_model.lower()
netdev = netdevcfg.netdev(driver=net_model)
vm.netdevs[len(vm.netdevs)] = netdev
elif devtype == DEVICE_IDE_BUS:
instance_id = get_child_content(device_node, "InstanceID")
disk_buses[instance_id] = "ide"
elif devtype == DEVICE_SCSI_BUS:
instance_id = get_child_content(device_node, "InstanceID")
disk_buses[instance_id] = "scsi"
elif devtype in [DEVICE_DISK]:
bus_id = get_child_content(device_node, "Parent")
path = get_child_content(device_node, "HostResource")
dev_num = int(get_child_content(device_node, "AddressOnParent"))
if bus_id and bus_id not in disk_buses:
raise ValueError(_("Didn't find parent bus for disk '%s'" %
path))
bus = (bus_id and disk_buses[bus_id]) or "ide"
fmt = diskcfg.DISK_FORMAT_RAW
if path:
ref = None
fmt = diskcfg.DISK_FORMAT_VMDK
if path.startswith("ovf:/disk/"):
disk_ref = path[len("ovf:/disk/"):]
if disk_ref not in disk_section:
raise ValueError(_("Unknown reference id '%s' "
"for path %s.") % (path, ref))
ref, fmt = disk_section[disk_ref]
elif path.startswith("ovf:/file/"):
ref = path[len("ovf:/file/"):]
else:
raise ValueError(_("Unknown storage path type %s." % path))
if not ref:
# XXX: This means allocate the disk.
pass
if ref not in file_refs:
raise ValueError(_("Unknown reference id '%s' "
"for path %s.") % (path, ref))
path = file_refs[ref]
disk = diskcfg.disk(path=path, fmt=fmt, bus=bus,
typ=diskcfg.DISK_TYPE_DISK)
vm.disks[(bus, dev_num)] = disk
else:
desc = get_child_content(device_node, "Description")
logging.debug("Unhandled device type=%s desc=%s", devtype, desc)
class virtimage_parser(formats.parser):
"""
Support for virt-install's image format (see virt-image man page).
"""
name = "virt-image"
suffix = ".virt-image.xml"
can_import = True
can_export = True
can_identify = True
@staticmethod
def identify_file(input_file):
"""
Return True if the given file is of this format.
"""
try:
ImageParser.parse_file(input_file)
except ImageParser.ParserException:
return False
return True
@staticmethod
def import_file(input_file):
"""
Import a configuration file. Raises if the file couldn't be
opened, or parsing otherwise failed.
"""
vm = vmcfg.vm()
try:
config = ImageParser.parse_file(input_file)
except Exception, e:
raise ValueError(_("Couldn't import file '%s': %s") %
(input_file, e))
domain = config.domain
boot = domain.boots[0]
if not config.name:
raise ValueError(_("No Name defined in '%s'") % input_file)
vm.name = config.name
vm.memory = int(config.domain.memory / 1024)
if config.descr:
vm.description = config.descr
vm.nr_vcpus = config.domain.vcpu
bus = "ide"
nr_disk = 0
for d in boot.drives:
disk = d.disk
fmt = None
if disk.format == ImageParser.Disk.FORMAT_RAW:
fmt = diskcfg.DISK_FORMAT_RAW
elif disk.format == ImageParser.Disk.FORMAT_VMDK:
fmt = diskcfg.DISK_FORMAT_VMDK
if fmt is None:
raise ValueError(_("Unable to determine disk format"))
devid = (bus, nr_disk)
vm.disks[devid] = diskcfg.disk(bus = bus,
type = diskcfg.DISK_TYPE_DISK)
vm.disks[devid].format = fmt
vm.disks[devid].path = disk.file
nr_disk = nr_disk + 1
nics = domain.interface
nic_idx = 0
while nic_idx in range(0, nics):
vm.netdevs[nic_idx] = netdevcfg.netdev(type = netdevcfg.NETDEV_TYPE_UNKNOWN)
nic_idx = nic_idx + 1
""" Eventually need to add support for mac addresses if given"""
vm.validate()
return vm
def _parse_hw_section(vm, nodes, file_refs, disk_section):
vm.nr_vcpus = 0
disk_buses = {}
for device_node in nodes:
if device_node.name != "Item":
continue
devtype = None
for item_node in node_list(device_node):
if item_node.name == "ResourceType":
devtype = item_node.content
if devtype == DEVICE_CPU:
cpus = get_child_content(device_node, "VirtualQuantity")
if cpus:
vm.nr_vcpus += int(cpus)
elif devtype == DEVICE_MEMORY:
mem = get_child_content(device_node, "VirtualQuantity")
alloc_str = get_child_content(device_node, "AllocationUnits")
if mem:
vm.memory = convert_alloc_val(alloc_str, mem)
elif devtype == DEVICE_ETHERNET:
net_model = get_child_content(device_node, "ResourceSubType")
if net_model:
net_model = net_model.lower()
netdev = netdevcfg.netdev(driver=net_model)
vm.netdevs[len(vm.netdevs)] = netdev
elif devtype == DEVICE_IDE_BUS:
instance_id = get_child_content(device_node, "InstanceID")
disk_buses[instance_id] = "ide"
elif devtype == DEVICE_SCSI_BUS:
instance_id = get_child_content(device_node, "InstanceID")
disk_buses[instance_id] = "scsi"
elif devtype in [DEVICE_DISK]:
bus_id = get_child_content(device_node, "Parent")
path = get_child_content(device_node, "HostResource")
dev_num = int(get_child_content(device_node, "AddressOnParent"))
if bus_id and bus_id not in disk_buses:
raise ValueError(
_("Didn't find parent bus for disk '%s'" % path))
bus = (bus_id and disk_buses[bus_id]) or "ide"
fmt = diskcfg.DISK_FORMAT_RAW
if path:
ref = None
fmt = diskcfg.DISK_FORMAT_VMDK
if path.startswith("ovf:/disk/"):
disk_ref = path[len("ovf:/disk/"):]
if disk_ref not in disk_section:
raise ValueError(
_("Unknown reference id '%s' "
"for path %s.") % (path, ref))
ref, fmt = disk_section[disk_ref]
elif path.startswith("ovf:/file/"):
ref = path[len("ovf:/file/"):]
else:
raise ValueError(_("Unknown storage path type %s." % path))
if not ref:
# XXX: This means allocate the disk.
pass
if ref not in file_refs:
raise ValueError(
_("Unknown reference id '%s' "
"for path %s.") % (path, ref))
path = file_refs[ref]
disk = diskcfg.disk(path=path,
format=fmt,
bus=bus,
type=diskcfg.DISK_TYPE_DISK)
vm.disks[(bus, dev_num)] = disk
else:
desc = get_child_content(device_node, "Description")
logging.debug("Unhandled device type=%s desc=%s", devtype, desc)
class virtimage_parser(formats.parser):
"""
Support for virt-install's image format (see virt-image man page).
"""
name = "virt-image"
suffix = ".virt-image.xml"
can_import = True
can_export = True
can_identify = True
@staticmethod
def identify_file(input_file):
"""
Return True if the given file is of this format.
"""
try:
f = file(input_file, "r")
output = f.read()
f.close()
ImageParser.parse(output, input_file)
except ImageParser.ParserException:
return False
return True
@staticmethod
def import_file(input_file):
"""
Import a configuration file. Raises if the file couldn't be
opened, or parsing otherwise failed.
"""
vm = vmcfg.vm()
try:
f = file(input_file, "r")
output = f.read()
f.close()
logging.debug("Importing virt-image XML:\n%s", output)
config = ImageParser.parse(output, input_file)
except Exception, e:
raise ValueError(
_("Couldn't import file '%s': %s") % (input_file, e))
domain = config.domain
boot = domain.boots[0]
if not config.name:
raise ValueError(_("No Name defined in '%s'") % input_file)
vm.name = config.name
vm.arch = boot.arch
vm.memory = int(config.domain.memory / 1024)
if config.descr:
vm.description = config.descr
vm.nr_vcpus = config.domain.vcpu
bus = "ide"
nr_disk = 0
for d in boot.drives:
disk = d.disk
format_mappings = {
ImageParser.Disk.FORMAT_RAW: diskcfg.DISK_FORMAT_RAW,
ImageParser.Disk.FORMAT_VMDK: diskcfg.DISK_FORMAT_VMDK,
ImageParser.Disk.FORMAT_QCOW: diskcfg.DISK_FORMAT_QCOW,
ImageParser.Disk.FORMAT_QCOW2: diskcfg.DISK_FORMAT_QCOW2,
ImageParser.Disk.FORMAT_VDI: diskcfg.DISK_FORMAT_VDI,
}
fmt = None
if disk.format in format_mappings:
fmt = format_mappings[disk.format]
else:
raise ValueError(_("Unknown disk format '%s'"), disk.format)
devid = (bus, nr_disk)
vm.disks[devid] = diskcfg.disk(bus=bus, typ=diskcfg.DISK_TYPE_DISK)
vm.disks[devid].format = fmt
vm.disks[devid].path = disk.file
nr_disk = nr_disk + 1
nics = domain.interface
nic_idx = 0
while nic_idx in range(0, nics):
# XXX Eventually need to add support for mac addresses if given
vm.netdevs[nic_idx] = netdevcfg.netdev(
typ=netdevcfg.NETDEV_TYPE_UNKNOWN)
nic_idx = nic_idx + 1
vm.validate()
return vm