1 files changed, 67 insertions, 0 deletions
diff --git a/src/lib/dhcpsrv/ip_range.h b/src/lib/dhcpsrv/ip_range.h
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+++ b/src/lib/dhcpsrv/ip_range.h
@@ -0,0 +1,67 @@
+// Copyright (C) 2020 Internet Systems Consortium, Inc. ("ISC")
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef IP_RANGE_H
+#define IP_RANGE_H
+
+#include <asiolink/io_address.h>
+
+namespace isc {
+namespace dhcp {
+
+/// @brief Structure representing IP address range.
+struct AddressRange {
+    /// IP address denoting the start of the address range.
+    asiolink::IOAddress start_;
+    /// IP address denoting the end of the address range.
+    asiolink::IOAddress end_;
+
+    /// @brief Constructor.
+    ///
+    /// @param start beginning of the address range.
+    /// @param end end of the address range.
+    /// @throw BadValue if the @c start is greater than the end or
+    /// specified boundaries do not belong to the same family.
+    AddressRange(const asiolink::IOAddress& start, const asiolink::IOAddress& end);
+};
+
+/// @brief Structure representing delegated prefix range.
+struct PrefixRange {
+    /// IP address denoting the start of the prefix range.
+    asiolink::IOAddress start_;
+    /// IP address denoting the first address within the last prefix
+    /// in the prefix range.
+    asiolink::IOAddress end_;
+    /// Prefix length.
+    uint8_t prefix_length_;
+    /// Delegated prefix length.
+    uint8_t delegated_length_;
+
+    /// @brief Constructor.
+    ///
+    /// @param prefix prefix from which prefixes are delegated.
+    /// @param length length of the prefix from which prefixes are delegated.
+    /// @param delegated delegated prefix length.
+    /// @throw BadValue if the values provided to the constructor are invalid,
+    /// e.g. it is not IPv6 prefix, delegated length is lower than prefix length
+    /// etc.
+    PrefixRange(const asiolink::IOAddress& prefix, const uint8_t length, const uint8_t delegated);
+
+    /// @brief Constructor.
+    ///
+    /// @param start beginning of the prefix range.
+    /// @param end end of the prefix range.
+    /// @param delegated delegated prefix length.
+    /// @throw BadValue if the values provided to the constructor are invalid,
+    /// e.g. it is not IPv6 prefix.
+    PrefixRange(const asiolink::IOAddress& start, const asiolink::IOAddress& end,
+                const uint8_t delegated);
+};
+
+} // end of namespace isc::dhcp
+} // end of namespace isc
+
+#endif // IP_RANGE_H