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from pathlib import Path
import subprocess
import os
from pytest import skip
from types import SimpleNamespace
PROJ_DIR = Path(__file__).parent.parent
TEST_DIR = PROJ_DIR / 'test'
TXT_DIR = TEST_DIR / 'text'
BPF_DIR = TEST_DIR / 'bpf'
EMU_DIR = TEST_DIR / 'emu_result'
BE_DIR = TEST_DIR / 'big_endian_cases'
ERR_CASE_DIR = TEST_DIR / 'errors'
CECCOMP = str(PROJ_DIR / 'build' / 'ceccomp')
FILENAMES = sorted([p.stem for p in TXT_DIR.iterdir()])
COMMON_OPTS = ['-c', 'always', '-a', 'x86_64']
def run_process(
argv: list[str], is_binary: bool=False, extra_fd: int | None=None,
stdin: str | bytes | None=None,
) -> tuple[int, str | bytes, str | bytes]:
if extra_fd is None:
result = subprocess.run(argv, timeout=3, capture_output=True,
text=not is_binary, input=stdin)
else:
result = subprocess.run(argv, timeout=3, capture_output=True,
text=not is_binary, pass_fds=(extra_fd, ), input=stdin)
return result.returncode, result.stdout, result.stderr
_, _verstr, _ = run_process(['pkg-config', '--modversion', 'libseccomp'], False)
SKIP_CHROMIUM = tuple(_verstr.split('.')) < ('2', '5', '6')
SKIP_REASON = 'libseccomp too old (<2.5.6)'
def maybe_skip(filename: str):
if SKIP_CHROMIUM and filename == 'chromium':
skip(SKIP_REASON)
def filter2text(filters: bytes) -> str:
length = len(filters) # leftover (less than 8 bytes) will be discarded
return '\n'.join(filters[i:i + 8].hex(' ') for i in range(0, length, 8))
os.environ['LC_ALL'] = 'C'
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