1 files changed, 52 insertions, 0 deletions
diff --git a/uuid-utils.cc b/uuid-utils.cc
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+++ b/uuid-utils.cc
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+/*
+ * This file is part of PowerDNS or dnsdist.
+ * Copyright -- PowerDNS.COM B.V. and its contributors
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * In addition, for the avoidance of any doubt, permission is granted to
+ * link this program with OpenSSL and to (re)distribute the binaries
+ * produced as the result of such linking.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "uuid-utils.hh"
+
+// see https://github.com/boostorg/random/issues/49
+#if BOOST_VERSION == 106900
+#ifndef BOOST_PENDING_INTEGER_LOG2_HPP
+#define BOOST_PENDING_INTEGER_LOG2_HPP
+#include <boost/integer/integer_log2.hpp>
+#endif /* BOOST_PENDING_INTEGER_LOG2_HPP */
+#endif /* BOOST_VERSION */
+
+#include <boost/uuid/uuid_generators.hpp>
+
+// The default of:
+// boost::uuids::random_generator
+// is safe for crypto operations since 1.67.0, but much slower.
+thread_local boost::uuids::basic_random_generator<boost::random::mt19937> t_uuidGenerator;
+
+boost::uuids::uuid getUniqueID()
+{
+  // not safe for crypto, but it could be with Boost >= 1.67.0 by using boost::uuids::random_generator,
+  // which is slower
+  return t_uuidGenerator();
+}
+
+boost::uuids::uuid getUniqueID(const std::string& str)
+{
+  boost::uuids::string_generator gen;
+  return gen(str);
+}
+