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https://github.com/varun-r-mallya/Python-BPF.git
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26 lines
923 B
Python
26 lines
923 B
Python
import subprocess
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import uuid
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from pathlib import Path
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def verify_object(obj_path: Path) -> tuple[bool, str]:
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"""Run bpftool prog load -d to verify a BPF object file against the kernel verifier.
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Pins the program temporarily at /sys/fs/bpf/bpf_prog_test_<uuid>, then removes it.
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Returns (success, combined_output). Requires sudo / root.
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"""
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pin_path = f"/sys/fs/bpf/bpf_prog_test_{uuid.uuid4().hex[:8]}"
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try:
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result = subprocess.run(
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["sudo", "bpftool", "prog", "load", "-d", str(obj_path), pin_path],
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capture_output=True,
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text=True,
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timeout=30,
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)
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output = result.stdout + result.stderr
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return result.returncode == 0, output
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except subprocess.TimeoutExpired:
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return False, "bpftool timed out after 30s"
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finally:
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subprocess.run(["sudo", "rm", "-f", pin_path], check=False, capture_output=True)
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