volatility3.framework.layers.intel module

class Intel(context, config_path, name, metadata=None)[source]

Bases: LinearlyMappedLayer

Translation Layer for the Intel IA32 memory mapping.

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 32

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)[source]

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)[source]

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()[source]

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)[source]

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)[source]

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)[source]

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 4294967295

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page directory', 10, False), ('page table', 10, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None

class Intel32e(context, config_path, name, metadata=None)[source]

Bases: Intel

Class for handling 64-bit (32-bit extensions) for Intel architectures.

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 64

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 281474976710655

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page map layer 4', 9, False), ('page directory pointer', 9, True), ('page directory', 9, True), ('page table', 9, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None

class IntelPAE(context, config_path, name, metadata=None)[source]

Bases: Intel

Class for handling Physical Address Extensions for Intel architectures.

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 32

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 4294967295

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page directory pointer', 2, False), ('page directory', 9, True), ('page table', 9, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None

class WindowsIntel(context, config_path, name, metadata=None)[source]

Bases: WindowsMixin, Intel

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 32

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 4294967295

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page directory', 10, False), ('page table', 10, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None

class WindowsIntel32e(context, config_path, name, metadata=None)[source]

Bases: WindowsMixin, Intel32e

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 64

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 281474976710655

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page map layer 4', 9, False), ('page directory pointer', 9, True), ('page directory', 9, True), ('page table', 9, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None

class WindowsIntelPAE(context, config_path, name, metadata=None)[source]

Bases: WindowsMixin, IntelPAE

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 32

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 4294967295

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page directory pointer', 2, False), ('page directory', 9, True), ('page table', 9, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None

class WindowsMixin(context, config_path, name, metadata=None)[source]

Bases: Intel

Basic initializer that allows configurables to access their own config settings.

property address_mask: int: Returns a mask which encapsulates all the active bits of an address for this layer.

bits_per_register = 32

build_configuration()

Constructs a HierarchicalDictionary of all the options required to build this component in the current context.

Ensures that if the class has been created, it can be recreated using the configuration built Inheriting classes must override this to ensure any dependent classes update their configurations too

Return type:: HierarchicalDict

canonicalize(addr)

Canonicalizes an address by performing an appropiate sign extension on the higher addresses

Return type:: int

property config: HierarchicalDict: The Hierarchical configuration Dictionary for this Configurable object.

property config_path: str: The configuration path on which this configurable lives.

property context: ContextInterface: The context object that this configurable belongs to/configuration is stored in.

decanonicalize(addr)

Removes canonicalization to ensure an adress fits within the correct range if it has been canonicalized

This will produce an address outside the range if the canonicalization is incorrect

Return type:: int

property dependencies: List[str]: Returns a list of the lower layer names that this layer is dependent upon.

destroy()

Causes a DataLayer to close any open handles, etc.

Systems that make use of Data Layers should call destroy when they are done with them. This will close all handles, and make the object unreadable (exceptions will be thrown using a DataLayer after destruction)

Return type:: None

classmethod get_requirements()

Returns a list of Requirement objects for this type of layer.

Return type:: List[RequirementInterface]

is_dirty(offset)

Returns whether the page at offset is marked dirty

Return type:: bool

is_valid(offset, length=1)

Returns whether the address offset can be translated to a valid address.

Return type:: bool

classmethod make_subconfig(context, base_config_path, **kwargs)

Convenience function to allow constructing a new randomly generated sub-configuration path, containing each element from kwargs.

Parameters:

context (ContextInterface) – The context in which to store the new configuration
base_config_path (str) – The base configuration path on which to build the new configuration
kwargs – Keyword arguments that are used to populate the new configuration path

Returns:

The newly generated full configuration path

Return type:

str

mapping(offset, length, ignore_errors=False)

Returns a sorted iterable of (offset, sublength, mapped_offset, mapped_length, layer) mappings.

This allows translation layers to provide maps of contiguous regions in one layer

Return type:: Iterable[Tuple[int, int, int, int, str]]

maximum_address = 4294967295

property metadata: Mapping: Returns a ReadOnly copy of the metadata published by this layer.

minimum_address = 0

property name: str: Returns the layer name.

page_mask = -4096

page_shift = 12

page_size = 4096

read(offset, length, pad=False)

Reads an offset for length bytes and returns ‘bytes’ (not ‘str’) of length size.

Return type:: bytes

scan(context, scanner, progress_callback=None, sections=None)

Scans a Translation layer by chunk.

Note: this will skip missing/unmappable chunks of memory

Parameters:

context (ContextInterface) – The context containing the data layer
scanner (ScannerInterface) – The constructed Scanner object to be applied
progress_callback (Optional[Callable[[float, str], None]]) – Method that is called periodically during scanning to update progress
sections (Iterable[Tuple[int, int]]) – A list of (start, size) tuples defining the portions of the layer to scan

Return type:

Iterable[Any]

Returns:

The output iterable from the scanner object having been run against the layer

structure = [('page directory', 10, False), ('page table', 10, True)]

translate(offset, ignore_errors=False)

Return type:: Tuple[Optional[int], Optional[str]]

classmethod unsatisfied(context, config_path)

Returns a list of the names of all unsatisfied requirements.

Since a satisfied set of requirements will return [], it can be used in tests as follows:

unmet = configurable.unsatisfied(context, config_path)
if unmet:
    raise RuntimeError("Unsatisfied requirements: {}".format(unmet)

Return type:: Dict[str, RequirementInterface]

write(offset, value)

Writes a value at offset, distributing the writing across any underlying mapping.

Return type:: None