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// Copyright (C) 2015-2016 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 CFG_4OVER6_H
#define CFG_4OVER6_H
#include <string>
#include <asiolink/io_address.h>
namespace isc {
namespace dhcp {
/// @brief This structure contains information about DHCP4o6 (RFC7341)
///
/// DHCP4o6 is completely optional. If it is not enabled, this structure
/// does not contain any information.
struct Cfg4o6 {
/// the default constructor.
///
/// Initializes fields to their default value.
Cfg4o6()
:enabled_(false), subnet4o6_(std::make_pair(asiolink::IOAddress("::"), 128u)) {
}
/// @brief Returns whether the DHCP4o6 is enabled or not.
/// @return true if enabled
bool enabled() const {
return (enabled_);
}
/// @brief Sets the DHCP4o6 enabled status.
/// @param enabled specifies if the DHCP4o6 should be enabled or not
void enabled(bool enabled) {
enabled_ = enabled;
}
/// @brief Returns the DHCP4o6 interface.
/// @return value of the 4o6-interface parameter.
std::string getIface4o6() const {
return (iface4o6_);
}
/// @brief Sets the 4o6-interface.
/// @param iface name of the network interface the 4o6 traffic is received on
void setIface4o6(const std::string& iface) {
iface4o6_ = iface;
enabled_ = true;
}
/// @brief Returns prefix/len for the IPv6 subnet.
/// @return prefix/length pair
std::pair<asiolink::IOAddress, uint8_t> getSubnet4o6() const {
return (subnet4o6_);
}
/// @brief Sets the prefix/length information (content of the 4o6-subnet).
/// @param subnet IOAddress that represents a prefix
/// @param prefix specifies prefix length
void setSubnet4o6(const asiolink::IOAddress& subnet, uint8_t prefix) {
subnet4o6_ = std::make_pair(subnet, prefix);
enabled_ = true;
}
/// @brief Returns the interface-id.
/// @return the option representing interface-id (or NULL)
OptionPtr getInterfaceId() const {
return (interface_id_);
}
/// @brief Sets the interface-id
/// @param opt option to be used as interface-id match
void setInterfaceId(const OptionPtr& opt) {
interface_id_ = opt;
enabled_ = true;
}
private:
/// Specifies if 4o6 is enabled on this subnet.
bool enabled_;
/// Specifies the network interface used as v4 subnet selector.
std::string iface4o6_;
/// Specifies the IPv6 subnet used for v4 subnet selection.
std::pair<asiolink::IOAddress, uint8_t> subnet4o6_;
/// Specifies the v6 interface-id used for v4 subnet selection.
OptionPtr interface_id_;
};
} // end of isc::dhcp namespace
} // end of isc namespace
#endif
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