Files
capa/tests/test_os_detection.py
Ana Maria Martinez Gomez 3cd97ae9f2 [copyright + license] Fix headers
Replace the header from source code files using the following script:
```Python
for dir_path, dir_names, file_names in os.walk("capa"):
    for file_name in file_names:
        # header are only in `.py` and `.toml` files
        if file_name[-3:] not in (".py", "oml"):
            continue
        file_path = f"{dir_path}/{file_name}"
        f = open(file_path, "rb+")
        content = f.read()
        m = re.search(OLD_HEADER, content)
        if not m:
            continue
        print(f"{file_path}: {m.group('year')}")
        content = content.replace(m.group(0), NEW_HEADER % m.group("year"))
        f.seek(0)
        f.write(content)
```

Some files had the copyright headers inside a `"""` comment and needed
manual changes before applying the script. `hook-vivisect.py` and
`pyinstaller.spec` didn't include the license in the header and also
needed manual changes.

The old header had the confusing sentence `All rights reserved`, which
does not make sense for an open source license. Replace the header by
the default Google header that corrects this issue and keep capa
consistent with other Google projects.

Adapt the linter to work with the new header.

Replace also the copyright text in the `web/public/index.html` file for
consistency.
2025-01-15 08:52:42 -07:00

187 lines
9.5 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import io
import zlib
from pathlib import Path
from fixtures import get_data_path_by_name
import capa.features.extractors.elf
def test_elf_sh_notes():
# guess: osabi: None
# guess: ph notes: None
# guess: sh notes: OS.LINUX
# guess: linker: None
# guess: ABI versions needed: None
# guess: symtab: None
# guess: needed dependencies: None
path = get_data_path_by_name("2f7f5f")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "linux"
def test_elf_pt_notes():
# guess: osabi: None
# guess: ph notes: None
# guess: sh notes: OS.LINUX
# guess: linker: OS.LINUX
# guess: ABI versions needed: OS.LINUX
# guess: symtab: None
# guess: needed dependencies: None
path = get_data_path_by_name("7351f.elf")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "linux"
def test_elf_so_needed():
# guess: osabi: None
# guess: ph notes: None
# guess: sh notes: OS.HURD
# guess: linker: None
# guess: ABI versions needed: OS.HURD
# guess: symtab: None
# guess: needed dependencies: OS.HURD
path = get_data_path_by_name("b5f052")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "hurd"
def test_elf_abi_version_hurd():
# guess: osabi: None
# guess: ph notes: None
# guess: sh notes: OS.HURD
# guess: linker: None
# guess: ABI versions needed: OS.HURD
# guess: symtab: None
# guess: needed dependencies: None
path = get_data_path_by_name("bf7a9c")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "hurd"
def test_elf_symbol_table():
# guess: osabi: None
# guess: ph notes: None
# guess: sh notes: None
# guess: linker: None
# guess: ABI versions needed: None
# guess: symtab: OS.LINUX
# guess: needed dependencies: None
path = get_data_path_by_name("2bf18d")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "linux"
def test_elf_android_notes():
# DEBUG:capa.features.extractors.elf:guess: osabi: None
# DEBUG:capa.features.extractors.elf:guess: ph notes: OS.ANDROID
# DEBUG:capa.features.extractors.elf:guess: sh notes: None
# DEBUG:capa.features.extractors.elf:guess: linker: None
# DEBUG:capa.features.extractors.elf:guess: ABI versions needed: None
# DEBUG:capa.features.extractors.elf:guess: needed dependencies: OS.ANDROID
path = get_data_path_by_name("1038a2")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "android"
def test_elf_go_buildinfo():
path = get_data_path_by_name("3da7c")
with Path(path).open("rb") as f:
assert capa.features.extractors.elf.detect_elf_os(f) == "linux"
def test_elf_parse_capa_pyinstaller_header():
# error after misidentified large pydata section with address 0; fixed in #1454
# compressed ELF header of capa-v5.1.0-linux
# SHA256 e16974994914466647e24cdcfb6a6f8710297a4def21525e53f73c72c4b52fcf
elf_header = zlib.decompress(
b"".join(
[
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b"\xC6\xED\x37\x7F\x74\xFC\x10\xAF\xF8\x26\x36\x86\xBE\x33\x9F\x47",
b"\xE3\xA0\xBC\x2D\x9F\xB7\xE5\xF9\x21\x5A\x42\x23\x86\x79\x92\x1C",
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b"\xFD\xFF\xCD\x70\x5B\xFE\xEB\xD2\x28\x7A\xDF\x18\xFC\x1A\x0A\x8F",
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b"\x9D\x1B\x0C\x7E\x9D\xC1\xE9\xB8\xC6\xE1\x6F\x33\xF8\x97\x4C\x5F",
b"\x6D\x86\xBF\x83\xE1\x7F\xC0\xF4\xF5\x08\x83\xFF\xC9\xE8\xFF\xC5",
b"\xE8\x4B\x06\x7F\x90\xC1\xDF\x60\xF0\x1F\x18\xFC\x13\xC6\xE7\x49",
b"\x86\x7F\x88\xC1\xFF\x61\xFA\xA2\xA7\xF2\x38\xFC\x08\x83\x7F\xC5",
b"\xE0\x47\x99\xBA\x37\x18\xFC\x4E\x46\xE7\x57\xC6\xE7\xF7\x0C\xFE",
b"\x2E\xA3\x73\x96\xA9\xFB\x05\xA3\x33\xC7\xF0\x5F\x67\xF4\x7F\x67",
b"\x74\x1E\x67\xF8\x6D\x46\x9F\x9E\x17\xE1\x2F\xA5\x79\x9D\x67\xF8",
b"\x9F\x72\x3E\x19\x7C\x91\xC1\x0F\x33\xFE\x1F\x66\xF8\x2F\x33\xFC",
b"\xFB\x99\x7E\x25\x83\xBF\xCF\xE8\xEC\x66\xF0\x75\xC6\xCF\x25\x86",
b"\xFF\x2D\xC3\x7F\x87\xC1\xE9\x99\x3E\x0E\xBF\x87\xE1\xBF\xC0\xF4",
b"\x45\x7F\xEF\xE3\xF0\x0F\x19\xFC\x3D\x06\xA7\xD7\x80\x71\xF8\x01",
b"\xA6\x6E\xC6\xF0\x3F\x67\xF8\x9F\x31\xFC\x9F\x18\xFC\x51\x66\x0E",
b"\x29\x83\x6F\x31\xF8\xC7\x0C\xBE\x8B\xF1\x99\x73\xCF\x4F\x86\xBF",
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b"\x48\x4F\x33\x0D\x5D\x61\xFD\xF6\x33\x65\x05\x4C\xD1\x07\x29\x0A",
b"\x09\xE8\xC3\x91\x2A\x85\x56\xCA\x2A\x31\x0A\x30\xDB\x76\x53\xE5",
b"\xA4\x93\x8B\x9C\x5C\x25\x4A\xC4\x15\x1A\xC2\x22\xD8\x80\xD0\x2B",
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b"\x3F\x5A\x3E\x35\x5A\x35\x30\x5C\xC3\x4D\x95\x6E\xA4\x60",
]
)
)
assert capa.features.extractors.elf.detect_elf_os(io.BytesIO(elf_header)) == "linux"