/*
 * Copyright (c) 2017 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __VOM_RA_PREFIX_H__
#define __VOM_RA_PREFIX_H__

#include "vom/prefix.hpp"

#include <vapi/ip.api.vapi.hpp>

namespace VOM {
/**
 * A representation of RA prefix configuration on given interface
 */
class ra_prefix
{
public:
  /**
   * Construct a new object matching the desried state
   */
  ra_prefix(const route::prefix_t& pfx,
            uint8_t use_default,
            uint8_t no_advertise,
            uint32_t val_lifetime,
            uint32_t pref_lifetime);

  /**
   * Copy Constructor
   */
  ra_prefix(const ra_prefix& o) = default;

  /**
   * Destructor
   */
  ~ra_prefix() = default;

  /**
   * convert to string format for debug purposes
   */
  std::string to_string() const;

  /**
   * Return the prefix associated with this ra prefix
   */
  const route::prefix_t& prefix() const;

  /**
   * Comparison operator - only used for UT
   */
  bool operator==(const ra_prefix& ra_prefix) const;

  /**
   * Convert the ra prefix configuration to Vpp Api
   */
  void to_vpp(vapi_payload_sw_interface_ip6nd_ra_prefix& ra_prefix) const;

private:
  /**
   * The prefix to be advertised.
   */
  route::prefix_t m_pfx;

  /**
   * Revert to default settings.
   */
  uint8_t m_use_default;

  /**
   * Do not send full router address in prefix advertisement.
   * Default is to advertise.
   */
  uint8_t m_no_advertise;

  /**
   * Prefix is off-link. Default is on-link.
   */
  uint8_t m_off_link;

  /**
   * Do not use prefix for autoconfiguration.
   * Default is autoconfig.
   */
  uint8_t m_no_autoconfig;

  /**
   * Do not use prefix for onlink determination.
   * Default is on-link (this flag is off).
   */
  uint8_t m_no_onlink;

  /**
   * <valid-lifetime>' is the length of time in seconds during what
   * the prefix is valid for the purpose of on-link determination.
   *
   * Range is 7203 to 2592000 seconds and default is 2592000 seconds.
   * A value of all one bits (0xffffffff) represents infinity (no
   * timeout).
   */
  uint32_t m_val_lifetime;

  /**
   * '<pref-lifetime>' is the prefered-lifetime and is the length of
   * time in seconds during what addresses generated from the prefix
   * remain preferred.
   *
   * Range is 0 to 604800 seconds and default is 604800 seconds.
   * A value of all one bits (0xffffffff) represents infinity (no
   * timeout).
   */
  uint32_t m_pref_lifetime;
};
};

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "mozilla")
 * End:
 */

#endif