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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._track_stack_pointers | def _track_stack_pointers(self):
"""
For each instruction, track its stack pointer offset and stack base pointer offset.
:return: None
"""
regs = {self.project.arch.sp_offset}
if hasattr(self.project.arch, 'bp_offset') and self.project.arch.bp_offset is not None:
... | python | def _track_stack_pointers(self):
"""
For each instruction, track its stack pointer offset and stack base pointer offset.
:return: None
"""
regs = {self.project.arch.sp_offset}
if hasattr(self.project.arch, 'bp_offset') and self.project.arch.bp_offset is not None:
... | [
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._convert | def _convert(self, block_node):
"""
Convert a VEX block to an AIL block.
:param block_node: A BlockNode instance.
:return: An converted AIL block.
:rtype: ailment.Block
"""
if not type(block_node) is BlockNode:
return block_no... | python | def _convert(self, block_node):
"""
Convert a VEX block to an AIL block.
:param block_node: A BlockNode instance.
:return: An converted AIL block.
:rtype: ailment.Block
"""
if not type(block_node) is BlockNode:
return block_no... | [
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._simplify_blocks | def _simplify_blocks(self, stack_pointer_tracker=None):
"""
Simplify all blocks in self._blocks.
:param stack_pointer_tracker: The RegisterDeltaTracker analysis instance.
:return: None
"""
# First of all, let's simplify blocks one by one
... | python | def _simplify_blocks(self, stack_pointer_tracker=None):
"""
Simplify all blocks in self._blocks.
:param stack_pointer_tracker: The RegisterDeltaTracker analysis instance.
:return: None
"""
# First of all, let's simplify blocks one by one
... | [
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._simplify_block | def _simplify_block(self, ail_block, stack_pointer_tracker=None):
"""
Simplify a single AIL block.
:param ailment.Block ail_block: The AIL block to simplify.
:param stack_pointer_tracker: The RegisterDeltaTracker analysis instance.
:return: A simplified ... | python | def _simplify_block(self, ail_block, stack_pointer_tracker=None):
"""
Simplify a single AIL block.
:param ailment.Block ail_block: The AIL block to simplify.
:param stack_pointer_tracker: The RegisterDeltaTracker analysis instance.
:return: A simplified ... | [
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._simplify_function | def _simplify_function(self):
"""
Simplify the entire function.
:return: None
"""
# Computing reaching definitions
rd = self.project.analyses.ReachingDefinitions(func=self.function, func_graph=self.graph, observe_all=True)
simp = self.project.analyses.AILSim... | python | def _simplify_function(self):
"""
Simplify the entire function.
:return: None
"""
# Computing reaching definitions
rd = self.project.analyses.ReachingDefinitions(func=self.function, func_graph=self.graph, observe_all=True)
simp = self.project.analyses.AILSim... | [
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._make_callsites | def _make_callsites(self, stack_pointer_tracker=None):
"""
Simplify all function call statements.
:return: None
"""
# Computing reaching definitions
rd = self.project.analyses.ReachingDefinitions(func=self.function, func_graph=self.graph, observe_all=True)
f... | python | def _make_callsites(self, stack_pointer_tracker=None):
"""
Simplify all function call statements.
:return: None
"""
# Computing reaching definitions
rd = self.project.analyses.ReachingDefinitions(func=self.function, func_graph=self.graph, observe_all=True)
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._link_variables_on_block | def _link_variables_on_block(self, block, kb):
"""
Link atoms (AIL expressions) in the given block to corresponding variables identified previously.
:param ailment.Block block: The AIL block to work on.
:return: None
"""
variable_manager = kb.variable... | python | def _link_variables_on_block(self, block, kb):
"""
Link atoms (AIL expressions) in the given block to corresponding variables identified previously.
:param ailment.Block block: The AIL block to work on.
:return: None
"""
variable_manager = kb.variable... | [
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angr/angr | angr/analyses/decompiler/clinic.py | Clinic._link_variables_on_expr | def _link_variables_on_expr(self, variable_manager, block, stmt_idx, stmt, expr):
"""
Link atoms (AIL expressions) in the given expression to corresponding variables identified previously.
:param variable_manager: Variable manager of the function.
:param ailment.Block block: AIL bloc... | python | def _link_variables_on_expr(self, variable_manager, block, stmt_idx, stmt, expr):
"""
Link atoms (AIL expressions) in the given expression to corresponding variables identified previously.
:param variable_manager: Variable manager of the function.
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angr/angr | angr/state_plugins/javavm_classloader.py | SimJavaVmClassloader.get_class | def get_class(self, class_name, init_class=False, step_func=None):
"""
Get a class descriptor for the class.
:param str class_name: Name of class.
:param bool init_class: Whether the class initializer <clinit> should be
executed.
:param func step... | python | def get_class(self, class_name, init_class=False, step_func=None):
"""
Get a class descriptor for the class.
:param str class_name: Name of class.
:param bool init_class: Whether the class initializer <clinit> should be
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angr/angr | angr/state_plugins/javavm_classloader.py | SimJavaVmClassloader.get_superclass | def get_superclass(self, class_):
"""
Get the superclass of the class.
"""
if not class_.is_loaded or class_.superclass_name is None:
return None
return self.get_class(class_.superclass_name) | python | def get_superclass(self, class_):
"""
Get the superclass of the class.
"""
if not class_.is_loaded or class_.superclass_name is None:
return None
return self.get_class(class_.superclass_name) | [
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angr/angr | angr/state_plugins/javavm_classloader.py | SimJavaVmClassloader.get_class_hierarchy | def get_class_hierarchy(self, base_class):
"""
Walks up the class hierarchy and returns a list of all classes between
base class (inclusive) and java.lang.Object (exclusive).
"""
classes = [base_class]
while classes[-1] is not None and classes[-1] != "java.lang.Object":
... | python | def get_class_hierarchy(self, base_class):
"""
Walks up the class hierarchy and returns a list of all classes between
base class (inclusive) and java.lang.Object (exclusive).
"""
classes = [base_class]
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angr/angr | angr/state_plugins/javavm_classloader.py | SimJavaVmClassloader.init_class | def init_class(self, class_, step_func=None):
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angr/angr | angr/blade.py | Blade._get_irsb | def _get_irsb(self, v):
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"""
Get the IRSB object from an address, a SimRun, or a CFGNode.
:param v: Can be one of the following: an address, or a CFGNode.
:return: The IRSB instance.
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angr/angr | angr/blade.py | Blade._get_addr | def _get_addr(self, v):
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:rtype: int
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"""
Get address of the basic block or CFG node specified by v.
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angr/angr | angr/blade.py | Blade._backward_slice | def _backward_slice(self):
"""
Backward slicing.
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# WrTmp
# Put
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# Get
# RdTmp
# Const
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temps = set()
regs = set()
# Retrieve... | python | def _backward_slice(self):
"""
Backward slicing.
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# WrTmp
# Put
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# RdTmp
# Const
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angr/angr | angr/engines/vex/ccall.py | pc_calculate_condition_simple | def pc_calculate_condition_simple(state, cond, cc_op, cc_dep1, cc_dep2, cc_ndep, platform=None):
"""
A simplified version of pc_calculate_condition(). Please refer to the documentation of Simplified CCalls above.
Limitation: symbolic flags are not supported for now.
"""
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"""
A simplified version of pc_calculate_condition(). Please refer to the documentation of Simplified CCalls above.
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angr/angr | angr/engines/vex/ccall.py | _concat_flags | def _concat_flags(nbits, flags_vec):
"""
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:param nbits : platform size in bits.
:param flags_vec: vector of flag BVs and their offset in the resulting BV.
:type nbits : int
:type flags_vec : list
... | python | def _concat_flags(nbits, flags_vec):
"""
Concatenate different flag BVs to a single BV. Currently used for ARM, X86
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angr/angr | angr/analyses/decompiler/region_simplifier.py | RegionSimplifier._simplify | def _simplify(self):
"""
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- Remove redundant Gotos
- Remove redundant If/If-else statements
"""
r = self.region
r = self._simplify_gotos(r)
r = self._simplify_ifs(r)
self.result = r | python | def _simplify(self):
"""
RegionSimplifier performs the following simplifications:
- Remove redundant Gotos
- Remove redundant If/If-else statements
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r = self.region
r = self._simplify_gotos(r)
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angr/angr | angr/serializable.py | Serializable.parse | def parse(cls, s, **kwargs):
"""
Parse a bytes object and create a class object.
:param bytes s: A bytes object.
:return: A class object.
:rtype: cls
"""
pb2_obj = cls._get_cmsg()
pb2_obj.ParseFromString(s)
return cls.parse_from_c... | python | def parse(cls, s, **kwargs):
"""
Parse a bytes object and create a class object.
:param bytes s: A bytes object.
:return: A class object.
:rtype: cls
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pb2_obj = cls._get_cmsg()
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angr/angr | angr/state_plugins/javavm_memory.py | SimJavaVmMemory.store_array_elements | def store_array_elements(self, array, start_idx, data):
"""
Stores either a single element or a range of elements in the array.
:param array: Reference to the array.
:param start_idx: Starting index for the store.
:param data: Either a single value or a list of values.
... | python | def store_array_elements(self, array, start_idx, data):
"""
Stores either a single element or a range of elements in the array.
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angr/angr | angr/state_plugins/javavm_memory.py | SimJavaVmMemory.load_array_elements | def load_array_elements(self, array, start_idx, no_of_elements):
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Loads either a single element or a range of elements from the array.
:param array: Reference to the array.
:param start_idx: Starting index for the load.
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angr/angr | angr/state_plugins/javavm_memory.py | SimJavaVmMemory._apply_concretization_strategies | def _apply_concretization_strategies(self, idx, strategies, action): # pylint: disable=unused-argument
"""
Applies concretization strategies on the index, until one of them succeeds.
"""
for s in strategies:
try:
idxes = s.concretize(self, idx)
ex... | python | def _apply_concretization_strategies(self, idx, strategies, action): # pylint: disable=unused-argument
"""
Applies concretization strategies on the index, until one of them succeeds.
"""
for s in strategies:
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idxes = s.concretize(self, idx)
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angr/angr | angr/state_plugins/javavm_memory.py | SimJavaVmMemory.concretize_store_idx | def concretize_store_idx(self, idx, strategies=None):
"""
Concretizes a store index.
:param idx: An expression for the index.
:param strategies: A list of concretization strategies (to override the default).
:param min_idx: Minimum value for a concretize... | python | def concretize_store_idx(self, idx, strategies=None):
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Concretizes a store index.
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angr/angr | angr/state_plugins/javavm_memory.py | SimJavaVmMemory.concretize_load_idx | def concretize_load_idx(self, idx, strategies=None):
"""
Concretizes a load index.
:param idx: An expression for the index.
:param strategies: A list of concretization strategies (to override the default).
:param min_idx: Minimum value for a concretized ... | python | def concretize_load_idx(self, idx, strategies=None):
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Concretizes a load index.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.copy | def copy(self):
"""
Make a copy of the CFG.
:return: A copy of the CFG instance.
:rtype: angr.analyses.CFG
"""
new_cfg = CFGEmulated.__new__(CFGEmulated)
super(CFGEmulated, self).make_copy(new_cfg)
new_cfg._indirect_jump_target_limit = self._indirect_jum... | python | def copy(self):
"""
Make a copy of the CFG.
:return: A copy of the CFG instance.
:rtype: angr.analyses.CFG
"""
new_cfg = CFGEmulated.__new__(CFGEmulated)
super(CFGEmulated, self).make_copy(new_cfg)
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.resume | def resume(self, starts=None, max_steps=None):
"""
Resume a paused or terminated control flow graph recovery.
:param iterable starts: A collection of new starts to resume from. If `starts` is None, we will resume CFG
recovery from where it was paused before.
... | python | def resume(self, starts=None, max_steps=None):
"""
Resume a paused or terminated control flow graph recovery.
:param iterable starts: A collection of new starts to resume from. If `starts` is None, we will resume CFG
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.remove_cycles | def remove_cycles(self):
"""
Forces graph to become acyclic, removes all loop back edges and edges between overlapped loop headers and their
successors.
"""
# loop detection
# only detect loops after potential graph normalization
if not self._loop_back_edges:
... | python | def remove_cycles(self):
"""
Forces graph to become acyclic, removes all loop back edges and edges between overlapped loop headers and their
successors.
"""
# loop detection
# only detect loops after potential graph normalization
if not self._loop_back_edges:
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.unroll_loops | def unroll_loops(self, max_loop_unrolling_times):
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:param int max_loop_unrolling_times: The maximum iterations of unrolling.
:return: None
"""
if not isin... | python | def unroll_loops(self, max_loop_unrolling_times):
"""
Unroll loops for each function. The resulting CFG may still contain loops due to recursion, function calls, etc.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.force_unroll_loops | def force_unroll_loops(self, max_loop_unrolling_times):
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.immediate_dominators | def immediate_dominators(self, start, target_graph=None):
"""
Get all immediate dominators of sub graph from given node upwards.
:param str start: id of the node to navigate forwards from.
:param networkx.classes.digraph.DiGraph target_graph: graph to analyse, default is self.graph.
... | python | def immediate_dominators(self, start, target_graph=None):
"""
Get all immediate dominators of sub graph from given node upwards.
:param str start: id of the node to navigate forwards from.
:param networkx.classes.digraph.DiGraph target_graph: graph to analyse, default is self.graph.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.immediate_postdominators | def immediate_postdominators(self, end, target_graph=None):
"""
Get all immediate postdominators of sub graph from given node upwards.
:param str start: id of the node to navigate forwards from.
:param networkx.classes.digraph.DiGraph target_graph: graph to analyse, default is self.grap... | python | def immediate_postdominators(self, end, target_graph=None):
"""
Get all immediate postdominators of sub graph from given node upwards.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.remove_fakerets | def remove_fakerets(self):
"""
Get rid of fake returns (i.e., Ijk_FakeRet edges) from this CFG
:return: None
"""
fakeret_edges = [ (src, dst) for src, dst, data in self.graph.edges(data=True)
if data['jumpkind'] == 'Ijk_FakeRet' ]
self.graph.remo... | python | def remove_fakerets(self):
"""
Get rid of fake returns (i.e., Ijk_FakeRet edges) from this CFG
:return: None
"""
fakeret_edges = [ (src, dst) for src, dst, data in self.graph.edges(data=True)
if data['jumpkind'] == 'Ijk_FakeRet' ]
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.get_topological_order | def get_topological_order(self, cfg_node):
"""
Get the topological order of a CFG Node.
:param cfg_node: A CFGNode instance.
:return: An integer representing its order, or None if the CFGNode does not exist in the graph.
"""
if not self._quasi_topological_order:
... | python | def get_topological_order(self, cfg_node):
"""
Get the topological order of a CFG Node.
:param cfg_node: A CFGNode instance.
:return: An integer representing its order, or None if the CFGNode does not exist in the graph.
"""
if not self._quasi_topological_order:
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.get_subgraph | def get_subgraph(self, starting_node, block_addresses):
"""
Get a sub-graph out of a bunch of basic block addresses.
:param CFGNode starting_node: The beginning of the subgraph
:param iterable block_addresses: A collection of block addresses that should be included in the subgraph if
... | python | def get_subgraph(self, starting_node, block_addresses):
"""
Get a sub-graph out of a bunch of basic block addresses.
:param CFGNode starting_node: The beginning of the subgraph
:param iterable block_addresses: A collection of block addresses that should be included in the subgraph if
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.get_function_subgraph | def get_function_subgraph(self, start, max_call_depth=None):
"""
Get a sub-graph of a certain function.
:param start: The function start. Currently it should be an integer.
:param max_call_depth: Call depth limit. None indicates no limit.
:return: A CFG instance which is a sub-g... | python | def get_function_subgraph(self, start, max_call_depth=None):
"""
Get a sub-graph of a certain function.
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:param max_call_depth: Call depth limit. None indicates no limit.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated.deadends | def deadends(self):
"""
Get all CFGNodes that has an out-degree of 0
:return: A list of CFGNode instances
:rtype: list
"""
if self.graph is None:
raise AngrCFGError('CFG hasn\'t been generated yet.')
deadends = [i for i in self.graph if self.graph.o... | python | def deadends(self):
"""
Get all CFGNodes that has an out-degree of 0
:return: A list of CFGNode instances
:rtype: list
"""
if self.graph is None:
raise AngrCFGError('CFG hasn\'t been generated yet.')
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._sanitize_parameters | def _sanitize_parameters(self):
"""
Perform a sanity check on parameters passed in to CFG.__init__().
An AngrCFGError is raised if any parameter fails the sanity check.
:return: None
"""
# Check additional_edges
if isinstance(self._additional_edges, (list, set, ... | python | def _sanitize_parameters(self):
"""
Perform a sanity check on parameters passed in to CFG.__init__().
An AngrCFGError is raised if any parameter fails the sanity check.
:return: None
"""
# Check additional_edges
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._job_sorting_key | def _job_sorting_key(self, job):
"""
Get the sorting key of a CFGJob instance.
:param CFGJob job: the CFGJob object.
:return: An integer that determines the order of this job in the queue.
:rtype: int
"""
if self._base_graph is None:
# we don't do so... | python | def _job_sorting_key(self, job):
"""
Get the sorting key of a CFGJob instance.
:param CFGJob job: the CFGJob object.
:return: An integer that determines the order of this job in the queue.
:rtype: int
"""
if self._base_graph is None:
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._pre_analysis | def _pre_analysis(self):
"""
Initialization work. Executed prior to the analysis.
:return: None
"""
# Fill up self._starts
for item in self._starts:
callstack = None
if isinstance(item, tuple):
# (addr, jumpkind)
i... | python | def _pre_analysis(self):
"""
Initialization work. Executed prior to the analysis.
:return: None
"""
# Fill up self._starts
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._job_queue_empty | def _job_queue_empty(self):
"""
A callback method called when the job queue is empty.
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"""
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# We don't have any exits remaining. Let's pop out a pending exit
pending_j... | python | def _job_queue_empty(self):
"""
A callback method called when the job queue is empty.
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"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._create_initial_state | def _create_initial_state(self, ip, jumpkind):
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Obtain a SimState object for a specific address
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._get_one_pending_job | def _get_one_pending_job(self):
"""
Retrieve a pending job.
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"""
pending_job_key, pending_job = self._pending_jobs.popitem()
pending_job_state = pending_job.state
pending_job_call_stack = pending_job.call_stack
pending_j... | python | def _get_one_pending_job(self):
"""
Retrieve a pending job.
:return: A CFGJob instance or None
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._process_hints | def _process_hints(self, analyzed_addrs):
"""
Process function hints in the binary.
:return: None
"""
# Function hints!
# Now let's see how many new functions we can get here...
while self._pending_function_hints:
f = self._pending_function_hints.pop... | python | def _process_hints(self, analyzed_addrs):
"""
Process function hints in the binary.
:return: None
"""
# Function hints!
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._post_analysis | def _post_analysis(self):
"""
Post-CFG-construction.
:return: None
"""
self._make_completed_functions()
new_changes = self._iteratively_analyze_function_features()
functions_do_not_return = new_changes['functions_do_not_return']
self._update_function_cal... | python | def _post_analysis(self):
"""
Post-CFG-construction.
:return: None
"""
self._make_completed_functions()
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functions_do_not_return = new_changes['functions_do_not_return']
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._pre_job_handling | def _pre_job_handling(self, job): # pylint:disable=arguments-differ
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Before processing a CFGJob.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._get_successors | def _get_successors(self, job):
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"""
addr = job.addr
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"""
Get a collection of successors out of the current job.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._post_process_successors | def _post_process_successors(self, input_state, sim_successors, successors):
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._post_handle_job_debug | def _post_handle_job_debug(self, job, successors):
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:param list successors: All successors of the analysis job.
:return: None
"""
si... | python | def _post_handle_job_debug(self, job, successors):
"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._iteratively_clean_pending_exits | def _iteratively_clean_pending_exits(self):
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._clean_pending_exits | def _clean_pending_exits(self):
"""
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c) they are the return exits of non-returning functions
:return: True if any pending exit... | python | def _clean_pending_exits(self):
"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._handle_successor | def _handle_successor(self, job, successor, successors):
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:param CFGJob job: The current job.
"""
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"""
Returns a new CFGJob instance for further analysis, or None if there is no immediate state to perform the
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"""
A block without successors should still be handled so it can be added to the function graph correctly.
:param CFGJob job: The current job that do not have any successor.
:param IRSB irsb: The related IRSB.
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"""
A block without successors should still be handled so it can be added to the function graph correctly.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._handle_actions | def _handle_actions(self, state, current_run, func, sp_addr, accessed_registers):
"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._update_function_transition_graph | def _update_function_transition_graph(self, src_node_key, dst_node_key, jumpkind='Ijk_Boring', ins_addr=None,
stmt_idx=None, confirmed=None):
"""
Update transition graphs of functions in function manager based on information passed in.
:param str jumpki... | python | def _update_function_transition_graph(self, src_node_key, dst_node_key, jumpkind='Ijk_Boring', ins_addr=None,
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Update transition graphs of functions in function manager based on information passed in.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._update_function_callsites | def _update_function_callsites(self, noreturns):
"""
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:param iterable func_addrs: A collection of functions for newly-recovered non-returning functions.
:retur... | python | def _update_function_callsites(self, noreturns):
"""
Update the callsites of functions (remove return targets) that are calling functions that are just deemed not
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._filter_insane_successors | def _filter_insane_successors(self, successors):
"""
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Throw away all successors whose target doesn't make sense
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._remove_non_return_edges | def _remove_non_return_edges(self):
"""
Remove those return_from_call edges that actually do not return due to
calling some not-returning functions.
:return: None
"""
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graph = func.transition_graph
all_return_... | python | def _remove_non_return_edges(self):
"""
Remove those return_from_call edges that actually do not return due to
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:return: None
"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._convert_indirect_jump_targets_to_states | def _convert_indirect_jump_targets_to_states(job, indirect_jump_targets):
"""
Convert each concrete indirect jump target into a SimState.
:param job: The CFGJob instance.
:param indirect_jump_targets: A collection of concrete jump targets resolved from a indirect j... | python | def _convert_indirect_jump_targets_to_states(job, indirect_jump_targets):
"""
Convert each concrete indirect jump target into a SimState.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._try_resolving_indirect_jumps | def _try_resolving_indirect_jumps(self, sim_successors, cfg_node, func_addr, successors, exception_info, artifacts):
"""
Resolve indirect jumps specified by sim_successors.addr.
:param SimSuccessors sim_successors: The SimSuccessors instance.
:param CFGNode cfg_node: ... | python | def _try_resolving_indirect_jumps(self, sim_successors, cfg_node, func_addr, successors, exception_info, artifacts):
"""
Resolve indirect jumps specified by sim_successors.addr.
:param SimSuccessors sim_successors: The SimSuccessors instance.
:param CFGNode cfg_node: ... | [
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._backward_slice_indirect | def _backward_slice_indirect(self, cfgnode, sim_successors, current_function_addr):
"""
Try to resolve an indirect jump by slicing backwards
"""
# TODO: make this a real indirect jump resolver under the new paradigm
irsb = sim_successors.artifacts['irsb'] # shorthand
l... | python | def _backward_slice_indirect(self, cfgnode, sim_successors, current_function_addr):
"""
Try to resolve an indirect jump by slicing backwards
"""
# TODO: make this a real indirect jump resolver under the new paradigm
irsb = sim_successors.artifacts['irsb'] # shorthand
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._symbolically_back_traverse | def _symbolically_back_traverse(self, current_block, block_artifacts, cfg_node):
"""
Symbolically executes from ancestor nodes (2-5 times removed) finding paths of execution through the given
CFGNode.
:param SimSuccessors current_block: SimSuccessor with address to attempt to navigate t... | python | def _symbolically_back_traverse(self, current_block, block_artifacts, cfg_node):
"""
Symbolically executes from ancestor nodes (2-5 times removed) finding paths of execution through the given
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:param SimSuccessors current_block: SimSuccessor with address to attempt to navigate t... | [
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._get_symbolic_function_initial_state | def _get_symbolic_function_initial_state(self, function_addr, fastpath_mode_state=None):
"""
Symbolically execute the first basic block of the specified function,
then returns it. We prepares the state using the already existing
state in fastpath mode (if avaiable).
:param functi... | python | def _get_symbolic_function_initial_state(self, function_addr, fastpath_mode_state=None):
"""
Symbolically execute the first basic block of the specified function,
then returns it. We prepares the state using the already existing
state in fastpath mode (if avaiable).
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._search_for_function_hints | def _search_for_function_hints(self, successor_state):
"""
Scan for constants that might be used as exit targets later, and add them into pending_exits.
:param SimState successor_state: A successing state.
:return: A list of discovered code addresses.
... | python | def _search_for_function_hints(self, successor_state):
"""
Scan for constants that might be used as exit targets later, and add them into pending_exits.
:param SimState successor_state: A successing state.
:return: A list of discovered code addresses.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._get_simsuccessors | def _get_simsuccessors(self, addr, job, current_function_addr=None):
"""
Create the SimSuccessors instance for a block.
:param int addr: Address of the block.
:param CFGJob job: The CFG job instance with an input state inside.
:param int current_f... | python | def _get_simsuccessors(self, addr, job, current_function_addr=None):
"""
Create the SimSuccessors instance for a block.
:param int addr: Address of the block.
:param CFGJob job: The CFG job instance with an input state inside.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._create_new_call_stack | def _create_new_call_stack(self, addr, all_jobs, job, exit_target, jumpkind):
"""
Creates a new call stack, and according to the jumpkind performs appropriate actions.
:param int addr: Address to create at.
:param Simsuccessors all_jobs: Jobs to get s... | python | def _create_new_call_stack(self, addr, all_jobs, job, exit_target, jumpkind):
"""
Creates a new call stack, and according to the jumpkind performs appropriate actions.
:param int addr: Address to create at.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._create_cfgnode | def _create_cfgnode(self, sim_successors, call_stack, func_addr, block_id=None, depth=None, exception_info=None):
"""
Create a context-sensitive CFGNode instance for a specific block.
:param SimSuccessors sim_successors: The SimSuccessors object.
:param CallStack call_stack_suff... | python | def _create_cfgnode(self, sim_successors, call_stack, func_addr, block_id=None, depth=None, exception_info=None):
"""
Create a context-sensitive CFGNode instance for a specific block.
:param SimSuccessors sim_successors: The SimSuccessors object.
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._detect_loops | def _detect_loops(self, loop_callback=None):
"""
Loop detection.
:param func loop_callback: A callback function for each detected loop backedge.
:return: None
"""
loop_finder = self.project.analyses.LoopFinder(kb=self.kb, normalize=False, fail_fast=self._fail_fast)
... | python | def _detect_loops(self, loop_callback=None):
"""
Loop detection.
:param func loop_callback: A callback function for each detected loop backedge.
:return: None
"""
loop_finder = self.project.analyses.LoopFinder(kb=self.kb, normalize=False, fail_fast=self._fail_fast)
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._immediate_dominators | def _immediate_dominators(self, node, target_graph=None, reverse_graph=False):
"""
Get all immediate dominators of sub graph from given node upwards.
:param str node: id of the node to navigate forwards from.
:param networkx.classes.digraph.DiGraph target_graph: graph to analyse, defaul... | python | def _immediate_dominators(self, node, target_graph=None, reverse_graph=False):
"""
Get all immediate dominators of sub graph from given node upwards.
:param str node: id of the node to navigate forwards from.
:param networkx.classes.digraph.DiGraph target_graph: graph to analyse, defaul... | [
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._is_indirect_jump | def _is_indirect_jump(_, sim_successors):
"""
Determine if this SimIRSB has an indirect jump as its exit
"""
if sim_successors.artifacts['irsb_direct_next']:
# It's a direct jump
return False
default_jumpkind = sim_successors.artifacts['irsb_default_jump... | python | def _is_indirect_jump(_, sim_successors):
"""
Determine if this SimIRSB has an indirect jump as its exit
"""
if sim_successors.artifacts['irsb_direct_next']:
# It's a direct jump
return False
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._is_address_executable | def _is_address_executable(self, address):
"""
Check if the specific address is in one of the executable ranges.
:param int address: The address
:return: True if it's in an executable range, False otherwise
"""
for r in self._executable_address_ranges:
if r[... | python | def _is_address_executable(self, address):
"""
Check if the specific address is in one of the executable ranges.
:param int address: The address
:return: True if it's in an executable range, False otherwise
"""
for r in self._executable_address_ranges:
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._get_callsites | def _get_callsites(self, function_address):
"""
Get where a specific function is called.
:param function_address: Address of the target function
:return: A list of CFGNodes whose exits include a call/jump to the given function
"""
all_predecessors =... | python | def _get_callsites(self, function_address):
"""
Get where a specific function is called.
:param function_address: Address of the target function
:return: A list of CFGNodes whose exits include a call/jump to the given function
"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._get_nx_paths | def _get_nx_paths(self, begin, end):
"""
Get the possible (networkx) simple paths between two nodes or addresses
corresponding to nodes.
Input: addresses or node instances
Return: a list of lists of nodes representing paths.
"""
if isinstance(begin, int) and isins... | python | def _get_nx_paths(self, begin, end):
"""
Get the possible (networkx) simple paths between two nodes or addresses
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Input: addresses or node instances
Return: a list of lists of nodes representing paths.
"""
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._quasi_topological_sort | def _quasi_topological_sort(self):
"""
Perform a quasi-topological sort on an already constructed CFG graph (a networkx DiGraph)
:return: None
"""
# Clear the existing sorting result
self._quasi_topological_order = {}
ctr = self._graph.number_of_nodes()
... | python | def _quasi_topological_sort(self):
"""
Perform a quasi-topological sort on an already constructed CFG graph (a networkx DiGraph)
:return: None
"""
# Clear the existing sorting result
self._quasi_topological_order = {}
ctr = self._graph.number_of_nodes()
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angr/angr | angr/analyses/cfg/cfg_emulated.py | CFGEmulated._reset_state_mode | def _reset_state_mode(self, state, mode):
"""
Reset the state mode to the given mode, and apply the custom state options specified with this analysis.
:param state: The state to work with.
:param str mode: The state mode.
:return: None
"""
state.set_m... | python | def _reset_state_mode(self, state, mode):
"""
Reset the state mode to the given mode, and apply the custom state options specified with this analysis.
:param state: The state to work with.
:param str mode: The state mode.
:return: None
"""
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angr/angr | angr/analyses/reassembler.py | SymbolManager.label_got | def label_got(self, addr, label):
"""
Mark a certain label as assigned (to an instruction or a block of data).
:param int addr: The address of the label.
:param angr.analyses.reassembler.Label label:
The label that is just assigned.
:return: None
... | python | def label_got(self, addr, label):
"""
Mark a certain label as assigned (to an instruction or a block of data).
:param int addr: The address of the label.
:param angr.analyses.reassembler.Label label:
The label that is just assigned.
:return: None
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angr/angr | angr/analyses/reassembler.py | Operand._imm_to_ptr | def _imm_to_ptr(self, imm, operand_type, mnemonic): # pylint:disable=no-self-use,unused-argument
"""
Try to classify an immediate as a pointer.
:param int imm: The immediate to test.
:param int operand_type: Operand type of this operand, can either be IMM or MEM.
:param str mne... | python | def _imm_to_ptr(self, imm, operand_type, mnemonic): # pylint:disable=no-self-use,unused-argument
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angr/angr | angr/analyses/reassembler.py | Procedure.name | def name(self):
"""
Get function name from the labels of the very first block.
:return: Function name if there is any, None otherwise
:rtype: string
"""
if self._name is not None:
return self._name
if not self.blocks:
return None
... | python | def name(self):
"""
Get function name from the labels of the very first block.
:return: Function name if there is any, None otherwise
:rtype: string
"""
if self._name is not None:
return self._name
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angr/angr | angr/analyses/reassembler.py | Procedure.is_plt | def is_plt(self):
"""
If this function is a PLT entry or not.
:return: True if this function is a PLT entry, False otherwise
:rtype: bool
"""
if self.section == ".plt":
return True
if not self.blocks:
return False
initial_block =... | python | def is_plt(self):
"""
If this function is a PLT entry or not.
:return: True if this function is a PLT entry, False otherwise
:rtype: bool
"""
if self.section == ".plt":
return True
if not self.blocks:
return False
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angr/angr | angr/analyses/reassembler.py | Procedure.assembly | def assembly(self, comments=False, symbolized=True):
"""
Get the assembly manifest of the procedure.
:param comments:
:param symbolized:
:return: A list of tuples (address, basic block assembly), ordered by basic block addresses
:rtype: list
"""
assembly... | python | def assembly(self, comments=False, symbolized=True):
"""
Get the assembly manifest of the procedure.
:param comments:
:param symbolized:
:return: A list of tuples (address, basic block assembly), ordered by basic block addresses
:rtype: list
"""
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angr/angr | angr/analyses/reassembler.py | Procedure.instruction_addresses | def instruction_addresses(self):
"""
Get all instruction addresses in the binary.
:return: A list of sorted instruction addresses.
:rtype: list
"""
addrs = [ ]
for b in sorted(self.blocks, key=lambda x: x.addr): # type: BasicBlock
addrs.extend(b.ins... | python | def instruction_addresses(self):
"""
Get all instruction addresses in the binary.
:return: A list of sorted instruction addresses.
:rtype: list
"""
addrs = [ ]
for b in sorted(self.blocks, key=lambda x: x.addr): # type: BasicBlock
addrs.extend(b.ins... | [
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angr/angr | angr/analyses/reassembler.py | Procedure._output_function_label | def _output_function_label(self):
"""
Determines if we want to output the function label in assembly. We output the function label only when the
original instruction does not output the function label.
:return: True if we should output the function label, False otherwise.
:rtype... | python | def _output_function_label(self):
"""
Determines if we want to output the function label in assembly. We output the function label only when the
original instruction does not output the function label.
:return: True if we should output the function label, False otherwise.
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angr/angr | angr/analyses/reassembler.py | Data.shrink | def shrink(self, new_size):
"""
Reduce the size of this block
:param int new_size: The new size
:return: None
"""
self.size = new_size
if self.sort == 'string':
self.null_terminated = False # string without the null byte terminator
self._... | python | def shrink(self, new_size):
"""
Reduce the size of this block
:param int new_size: The new size
:return: None
"""
self.size = new_size
if self.sort == 'string':
self.null_terminated = False # string without the null byte terminator
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angr/angr | angr/analyses/reassembler.py | Data.desymbolize | def desymbolize(self):
"""
We believe this was a pointer and symbolized it before. Now we want to desymbolize it.
The following actions are performed:
- Reload content from memory
- Mark the sort as 'unknown'
:return: None
"""
self.sort = 'unknown'
... | python | def desymbolize(self):
"""
We believe this was a pointer and symbolized it before. Now we want to desymbolize it.
The following actions are performed:
- Reload content from memory
- Mark the sort as 'unknown'
:return: None
"""
self.sort = 'unknown'
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angr/angr | angr/analyses/reassembler.py | Reassembler.main_executable_region_limbos_contain | def main_executable_region_limbos_contain(self, addr):
"""
Sometimes there exists a pointer that points to a few bytes before the beginning of a section, or a few bytes
after the beginning of the section. We take care of that here.
:param int addr: The address to check.
:return:... | python | def main_executable_region_limbos_contain(self, addr):
"""
Sometimes there exists a pointer that points to a few bytes before the beginning of a section, or a few bytes
after the beginning of the section. We take care of that here.
:param int addr: The address to check.
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angr/angr | angr/analyses/reassembler.py | Reassembler.main_nonexecutable_region_limbos_contain | def main_nonexecutable_region_limbos_contain(self, addr, tolerance_before=64, tolerance_after=64):
"""
Sometimes there exists a pointer that points to a few bytes before the beginning of a section, or a few bytes
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"""
Sometimes there exists a pointer that points to a few bytes before the beginning of a section, or a few bytes
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angr/angr | angr/analyses/reassembler.py | Reassembler.add_label | def add_label(self, name, addr):
"""
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:param str name: Name of the label.
:param int addr: Address of the label.
:return: None
"""
# set the label
self._symbolization_needed = True
self.symbol_manager.new_la... | python | def add_label(self, name, addr):
"""
Add a new label to the symbol manager.
:param str name: Name of the label.
:param int addr: Address of the label.
:return: None
"""
# set the label
self._symbolization_needed = True
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angr/angr | angr/analyses/reassembler.py | Reassembler.insert_asm | def insert_asm(self, addr, asm_code, before_label=False):
"""
Insert some assembly code at the specific address. There must be an instruction starting at that address.
:param int addr: Address of insertion
:param str asm_code: The assembly code to insert
:return: None
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"""
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angr/angr | angr/analyses/reassembler.py | Reassembler.append_procedure | def append_procedure(self, name, asm_code):
"""
Add a new procedure with specific name and assembly code.
:param str name: The name of the new procedure.
:param str asm_code: The assembly code of the procedure
:return: None
"""
proc = Procedure(self, name=name, ... | python | def append_procedure(self, name, asm_code):
"""
Add a new procedure with specific name and assembly code.
:param str name: The name of the new procedure.
:param str asm_code: The assembly code of the procedure
:return: None
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angr/angr | angr/analyses/reassembler.py | Reassembler.append_data | def append_data(self, name, initial_content, size, readonly=False, sort="unknown"): # pylint:disable=unused-argument
"""
Append a new data entry into the binary with specific name, content, and size.
:param str name: Name of the data entry. Will be used as the label.
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"""
Append a new data entry into the binary with specific name, content, and size.
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angr/angr | angr/analyses/reassembler.py | Reassembler.remove_cgc_attachments | def remove_cgc_attachments(self):
"""
Remove CGC attachments.
:return: True if CGC attachments are found and removed, False otherwise
:rtype: bool
"""
cgc_package_list = None
cgc_extended_application = None
for data in self.data:
if data.sor... | python | def remove_cgc_attachments(self):
"""
Remove CGC attachments.
:return: True if CGC attachments are found and removed, False otherwise
:rtype: bool
"""
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angr/angr | angr/analyses/reassembler.py | Reassembler.remove_unnecessary_stuff | def remove_unnecessary_stuff(self):
"""
Remove unnecessary functions and data
:return: None
"""
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"""
Remove unnecessary functions and data
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"""
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angr/angr | angr/analyses/reassembler.py | Reassembler._initialize | def _initialize(self):
"""
Initialize the binary.
:return: None
"""
# figure out section alignments
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for segment in self.project.loader.main_object.segments:
... | python | def _initialize(self):
"""
Initialize the binary.
:return: None
"""
# figure out section alignments
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angr/angr | angr/analyses/reassembler.py | Reassembler._sequence_handler | def _sequence_handler(self, cfg, irsb, irsb_addr, stmt_idx, data_addr, max_size): # pylint:disable=unused-argument
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Find sequences in binary data.
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angr/angr | angr/analyses/reassembler.py | Reassembler._cgc_package_list_identifier | def _cgc_package_list_identifier(self, data_addr, data_size):
"""
Identifies the CGC package list associated with the CGC binary.
:param int data_addr: Address of the data in memory.
:param int data_size: Maximum size possible.
:return: A 2-tuple of data type and size.
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"""
Identifies the CGC package list associated with the CGC binary.
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angr/angr | angr/analyses/reassembler.py | Reassembler._cgc_extended_application_handler | def _cgc_extended_application_handler(self, cfg, irsb, irsb_addr, stmt_idx, data_addr, max_size): # pylint:disable=unused-argument
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Identifies the extended application (a PDF file) associated with the CGC binary.
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Identifies the extended application (a PDF file) associated with the CGC binary.
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"""
Return the maximum number of bytes until a potential pointer or a potential sequence is found.
:param angr.analyses.CFG cfg: The control flow graph.
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angr/angr | angr/analyses/reassembler.py | Reassembler._has_integer_used_as_pointers | def _has_integer_used_as_pointers(self):
"""
Test if there is any (suspicious) pointer decryption in the code.
:return: True if there is any pointer decryption, False otherwise.
:rtype: bool
"""
# check all integer accesses and see if there is any integer being used as ... | python | def _has_integer_used_as_pointers(self):
"""
Test if there is any (suspicious) pointer decryption in the code.
:return: True if there is any pointer decryption, False otherwise.
:rtype: bool
"""
# check all integer accesses and see if there is any integer being used as ... | [
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angr/angr | angr/analyses/reassembler.py | Reassembler.fast_memory_load | def fast_memory_load(self, addr, size, data_type, endness='Iend_LE'):
"""
Load memory bytes from loader's memory backend.
:param int addr: The address to begin memory loading.
:param int size: Size in bytes.
:param data_type: Type of the data.
:param str endness:... | python | def fast_memory_load(self, addr, size, data_type, endness='Iend_LE'):
"""
Load memory bytes from loader's memory backend.
:param int addr: The address to begin memory loading.
:param int size: Size in bytes.
:param data_type: Type of the data.
:param str endness:... | [
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angr/angr | angr/analyses/variable_recovery/variable_recovery_fast.py | VariableRecoveryFastState.merge | def merge(self, other, successor=None):
"""
Merge two abstract states.
For any node A whose dominance frontier that the current node (at the current program location) belongs to, we
create a phi variable V' for each variable V that is defined in A, and then replace all existence of V wi... | python | def merge(self, other, successor=None):
"""
Merge two abstract states.
For any node A whose dominance frontier that the current node (at the current program location) belongs to, we
create a phi variable V' for each variable V that is defined in A, and then replace all existence of V wi... | [
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] | 4e2f97d56af5419ee73bdb30482c8dd8ff5f3e40 | https://github.com/angr/angr/blob/4e2f97d56af5419ee73bdb30482c8dd8ff5f3e40/angr/analyses/variable_recovery/variable_recovery_fast.py#L525-L557 | train | Merge two abstract states. | Pu7Z6IJCgH3a,vcEHXBQXuDuh,sHOWSIAKtU58,ZVWAAMjVVHHl,qRin5pdYOdbB,IySsVMyKT3tF,FwEHNICjJCy0,yISIa0MMKKfB,GAtvbI59wr0o,OmNM6rT0Sgul,gu1MSKhYvigU,S2TTo9DhhiSh,aaLV7ZjAfkcR,ker4pIJmdvxf,WaQEaQCVMQ03,xV97BFGi0hY9,YnM1HtHE4j7G,X5FyJb4ToTo6,jLmadlzMdunT,GGFwFLsDF9Fv,prtR0Uw1GMh5,oNamnshN4dFG,QZzQeAYvsoum,VHAt7CcYKC2T,cKsTbNGL... |
angr/angr | angr/analyses/variable_recovery/variable_recovery_fast.py | VariableRecoveryFast._process_block | def _process_block(self, state, block): # pylint:disable=no-self-use
"""
Scan through all statements and perform the following tasks:
- Find stack pointers and the VEX temporary variable storing stack pointers
- Selectively calculate VEX statements
- Track memory loading and mar... | python | def _process_block(self, state, block): # pylint:disable=no-self-use
"""
Scan through all statements and perform the following tasks:
- Find stack pointers and the VEX temporary variable storing stack pointers
- Selectively calculate VEX statements
- Track memory loading and mar... | [
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