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93 lines
2.6 KiB
93 lines
2.6 KiB
#!/usr/bin/env python3
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import errno
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import os
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import stat
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import sys
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import tempfile
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from posix_parity import cleanup_paths
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from posix_parity import compare_calls
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from posix_parity import fail
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from posix_parity import join
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from posix_parity import should_compare_inode
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from posix_parity import stat_cmp_basic
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from posix_parity import touch
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def stat_cmp_basic_with_inode(lhs, rhs):
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return stat_cmp_basic(lhs, rhs) and lhs.st_ino == rhs.st_ino
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def main():
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if len(sys.argv) != 2:
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print("usage: TEST_posix_chmod <mountpoint>", file=sys.stderr)
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return 1
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mount = sys.argv[1]
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stcmp = stat_cmp_basic_with_inode if should_compare_inode(mount) else stat_cmp_basic
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with tempfile.TemporaryDirectory() as native:
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merge_file = join(mount, "posix-chmod/file")
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native_file = join(native, "posix-chmod/file")
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merge_missing = join(mount, "posix-chmod/missing")
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native_missing = join(native, "posix-chmod/missing")
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merge_notdir = join(mount, "posix-chmod/notdir")
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native_notdir = join(native, "posix-chmod/notdir")
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cleanup_paths([merge_file, merge_notdir])
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touch(merge_file, b"x", 0o644)
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touch(native_file, b"x", 0o644)
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touch(merge_notdir, b"x", 0o644)
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touch(native_notdir, b"x", 0o644)
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err = compare_calls(
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"chmod success",
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lambda: os.chmod(merge_file, 0o600),
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lambda: os.chmod(native_file, 0o600),
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)
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if err:
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return fail(err)
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err = compare_calls(
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"chmod stat parity",
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lambda: os.lstat(merge_file),
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lambda: os.lstat(native_file),
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stcmp,
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)
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if err:
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return fail(err)
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err = compare_calls(
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"chmod ENOENT",
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lambda: os.chmod(merge_missing, 0o600),
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lambda: os.chmod(native_missing, 0o600),
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)
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if err:
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return fail(err)
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err = compare_calls(
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"chmod ENOTDIR",
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lambda: os.chmod(join(merge_notdir, "child"), 0o600),
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lambda: os.chmod(join(native_notdir, "child"), 0o600),
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)
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if err:
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return fail(err)
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if os.geteuid() != 0:
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err = compare_calls(
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"chmod EPERM setuid",
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lambda: os.chmod(merge_file, stat.S_ISUID | 0o644),
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lambda: os.chmod(native_file, stat.S_ISUID | 0o644),
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)
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if err:
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return fail(err)
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else:
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_ = errno.EPERM
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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