89 lines
2.9 KiB
Python
89 lines
2.9 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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from diskimage_builder.block_device.exception import \
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BlockDeviceSetupException
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from diskimage_builder.block_device.plugin import NodeBase
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logger = logging.getLogger(__name__)
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class PartitionNode(NodeBase):
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flag_boot = 1
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flag_primary = 2
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def __init__(self, config, state, parent, prev_partition):
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super(PartitionNode, self).__init__(config['name'], state)
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self.base = config['base']
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self.partitioning = parent
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self.prev_partition = prev_partition
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# filter out some MBR only options for clarity
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if self.partitioning.label == 'gpt':
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if 'flags' in config and 'primary' in config['flags']:
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raise BlockDeviceSetupException(
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"Primary flag not supported for GPT partitions")
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self.flags = set()
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if 'flags' in config:
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for f in config['flags']:
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if f == 'boot':
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self.flags.add(self.flag_boot)
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elif f == 'primary':
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self.flags.add(self.flag_primary)
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else:
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raise BlockDeviceSetupException("Unknown flag: %s" % f)
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if 'size' not in config:
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raise BlockDeviceSetupException("No size in partition" % self.name)
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self.size = config['size']
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if self.partitioning.label == 'gpt':
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self.ptype = str(config['type']) if 'type' in config else '8300'
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elif self.partitioning.label == 'mbr':
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self.ptype = int(config['type'], 16) if 'type' in config else 0x83
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def get_flags(self):
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return self.flags
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def get_size(self):
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return self.size
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def get_type(self):
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return self.ptype
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def get_edges(self):
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edge_from = [self.base]
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edge_to = []
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if self.prev_partition is not None:
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edge_from.append(self.prev_partition.name)
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return (edge_from, edge_to)
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# These all call back to the parent "partitioning" object to do
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# the real work. Every node calls it, but only one will succeed;
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# see the gating we do in the parent function.
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#
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# XXX: A better model here would be for the parent object to a
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# real node in the config graph, so it's create() gets called.
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# These can then just be stubs.
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def create(self):
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self.partitioning.create()
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def cleanup(self):
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self.partitioning.cleanup()
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