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106 lines
4.1 KiB
Python
Executable File
106 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python3
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# pylint: disable=missing-class-docstring,disable=no-self-use
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from __future__ import annotations
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__package__ = __package__ or "tests.knowledge_plugins.functions" # pylint:disable=redefined-builtin
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import os
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import unittest
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import angr
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from tests.common import bin_location
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test_location = os.path.join(bin_location, "tests")
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class TestFunction(unittest.TestCase):
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def test_function_serialization(self):
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p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
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cfg = p.analyses.CFG()
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func_main = cfg.kb.functions["main"]
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s = func_main.serialize()
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assert type(s) is bytes
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assert len(s) > 10
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f = angr.knowledge_plugins.Function.parse(s, function_manager=p.kb.functions, project=p)
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assert func_main.addr == f.addr
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assert func_main.name == f.name
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assert func_main.is_prototype_guessed == f.is_prototype_guessed
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assert func_main.prototype == f.prototype
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assert f.prototype is None
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def test_function_serialization_with_prototype(self):
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p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
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cfg = p.analyses.CFG()
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p.analyses.CompleteCallingConventions()
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func_main = cfg.kb.functions["main"]
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assert func_main.calling_convention is not None
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assert func_main.prototype is not None
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s = func_main.serialize()
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assert type(s) is bytes
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assert len(s) > 10
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f = angr.knowledge_plugins.Function.parse(s, function_manager=p.kb.functions, project=p)
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assert func_main.addr == f.addr
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assert func_main.name == f.name
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assert func_main.is_prototype_guessed == f.is_prototype_guessed
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assert func_main.prototype == f.prototype
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assert func_main.calling_convention == f.calling_convention
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assert f.prototype is not None
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def test_function_definition_application(self):
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p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
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cfg = p.analyses.CFG()
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func_main: angr.knowledge_plugins.Function = cfg.kb.functions["main"]
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func_main.apply_definition("int main(int argc, char** argv)")
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# Check prototype of function
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assert func_main.prototype is not None
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assert func_main.prototype.args == (
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angr.types.SimTypeInt().with_arch(p.arch),
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angr.types.SimTypePointer(angr.types.SimTypePointer(angr.types.SimTypeChar()).with_arch(p.arch)).with_arch(
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p.arch
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),
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)
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# Check that the default calling convention of the architecture was applied
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assert isinstance(func_main.calling_convention, angr.calling_conventions.DefaultCC[p.arch.name]["Linux"])
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func_main.apply_definition("int main(int argc, char** argv)")
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def test_function_instruction_addr_from_any_addr(self):
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p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
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cfg = p.analyses.CFG()
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func_main = cfg.kb.functions["main"]
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assert func_main.addr_to_instruction_addr(0x400739) == 0x400739
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assert func_main.addr_to_instruction_addr(0x40073A) == 0x400739
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assert func_main.addr_to_instruction_addr(0x40073D) == 0x400739
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assert func_main.addr_to_instruction_addr(0x400742) == 0x400742
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assert func_main.addr_to_instruction_addr(0x400743) == 0x400742
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def test_function_instruction_size(self):
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p = angr.Project(os.path.join(test_location, "x86_64", "fauxware"), auto_load_libs=False)
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cfg = p.analyses.CFG()
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func_main = cfg.kb.functions["main"]
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assert func_main.instruction_size(0x40071D) == 1
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assert func_main.instruction_size(0x40071E) == 3
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assert func_main.instruction_size(0x400721) == 4
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assert func_main.instruction_size(0x400725) == 3
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assert func_main.instruction_size(0x400728) == 4
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assert func_main.instruction_size(0x400739) == 5
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assert func_main.instruction_size(0x400742) == 5
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if __name__ == "__main__":
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unittest.main()
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