Function mac_pipe_check_read

freebsd/security/mac/mac_pipe.c:181–192

    "struct pipepair *");

int
mac_pipe_check_read(struct ucred *cred, struct pipepair *pp)
{
	int error;

	mtx_assert(&pp->pp_mtx, MA_OWNED);

	MAC_POLICY_CHECK_NOSLEEP(pipe_check_read, cred, pp, pp->pp_label);
	MAC_CHECK_PROBE2(pipe_check_read, error, cred, pp);

	return (error);
}

MAC_CHECK_PROBE_DEFINE3(pipe_check_relabel, "struct ucred *",
    "struct pipepair *", "struct label *");