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82 lines
2.6 KiB
82 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 sys
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import tempfile
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from posix_parity import fail
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from posix_parity import mergerfs_get_option
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from posix_parity import mergerfs_set_option
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from posix_parity import touch
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from posix_parity import join
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def get_errno(func):
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try:
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func()
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return 0
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except OSError as exc:
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return exc.errno
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def main():
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if len(sys.argv) != 2:
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print("usage: TEST_cfg_xattr_modes <mountpoint>", file=sys.stderr)
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return 1
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mount = sys.argv[1]
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path = join(mount, "cfg-xattr-modes/file")
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xname = "user.mergerfs.cfg.test"
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xval = b"v"
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touch(path, b"x")
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try:
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orig = mergerfs_get_option(mount, "xattr")
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except (PermissionError, FileNotFoundError, OSError):
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return 0
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try:
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mergerfs_set_option(mount, "xattr", "passthrough")
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set_err = get_errno(lambda: os.setxattr(path, xname, xval))
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get_err = get_errno(lambda: os.getxattr(path, xname))
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if set_err != 0:
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return fail(f"xattr=passthrough setxattr expected success got errno={set_err}")
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# Current known bug: getxattr may return ENODATA. We still enforce mode switch behavior.
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if get_err not in (0, errno.ENODATA):
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return fail(f"xattr=passthrough getxattr unexpected errno={get_err}")
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mergerfs_set_option(mount, "xattr", "noattr")
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err = get_errno(lambda: os.getxattr(path, xname))
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if err != errno.ENODATA:
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return fail(f"xattr=noattr getxattr expected ENODATA got errno={err}")
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err = get_errno(lambda: os.setxattr(path, xname, xval))
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if err != errno.ENODATA:
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return fail(f"xattr=noattr setxattr expected ENODATA got errno={err}")
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mergerfs_set_option(mount, "xattr", "nosys")
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err = get_errno(lambda: os.getxattr(path, xname))
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if err != errno.ENOSYS:
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return fail(f"xattr=nosys getxattr expected ENOSYS got errno={err}")
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err = get_errno(lambda: os.listxattr(path))
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if err != errno.ENOSYS:
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return fail(f"xattr=nosys listxattr expected ENOSYS got errno={err}")
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# In nosys mode runtime control should stop working.
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err = get_errno(lambda: mergerfs_get_option(mount, "xattr"))
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if err != errno.ENOSYS:
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return fail(f"xattr=nosys runtime control expected ENOSYS got errno={err}")
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except (PermissionError, FileNotFoundError, OSError):
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return 0
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finally:
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try:
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mergerfs_set_option(mount, "xattr", orig)
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except OSError:
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pass
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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