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// Copyright (C) 2018-2021 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 ISC_TRANSLATOR_POOL_H
#define ISC_TRANSLATOR_POOL_H 1
#include <yang/translator_option_data.h>
#include <list>
namespace isc {
namespace yang {
/// @brief A translator class for converting a pool between YANG and JSON.
///
/// Currently supports on kea-dhcp[46]-server and partially ietf-dhcpv6-server.
///
/// JSON syntax for both kea-dhcp4 and kea-dhcp6 is:
/// @code
/// {
/// "pool": "<pool prefix or start - end addresses>",
/// "option-data": [ <list of option data> ],
/// "client-class": "<guard class name>",
/// "require-client-classes": [ <list of required class names> ],
/// "user-context": { <json map> },
/// "comment": "<comment>"
/// }
/// @endcode
///
/// YANG syntax is for ietf-dhcpv6-server is with pool-id as the key:
/// @code
/// +--rw pool-id uint32
/// +--rw pool-prefix inet:ipv6-prefix
/// +--rw start-address inet:ipv6-address-no-zone
/// +--rw end-address inet:ipv6-address-no-zone
/// +--rw valid-lifetime yang:timeticks
/// +--rw renew-time yang:timeticks
/// +--rw rebind-time yang:timeticks
/// +--rw preferred-lifetime yang:timeticks
/// +--rw rapid-commit? boolean
/// +--rw client-class? string
/// +--rw max-address-count threshold
/// +--rw option-set-id
/// /server/server-config/option-sets/option-set/option-set-id
/// @endcode
///
/// YANG syntax for kea-dhcp[46] is with start-address and end-address
/// as the keys:
/// @code
/// +--rw pool* [start-address end-address]
/// +--rw prefix? inet:ipv[46]-prefix
/// +--rw start-address inet:ipv[46]-address
/// +--rw end-address inet:ipv[46]-address
/// +--rw option-data* [code space]
/// +--rw client-class? string
/// +--rw require-client-classes* string
/// +--rw user-context? user-context
/// @endcode
///
/// An example in JSON and YANG formats for the IETF model:
/// @code
/// [
/// {
/// "pool": "2001:db8::/112"
/// }
/// ]
/// @endcode
/// @code
/// /ietf-dhcpv6-server:server (container)
/// /ietf-dhcpv6-server:server/server-config (container)
/// /ietf-dhcpv6-server:server/server-config/network-ranges (container)
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111'] (list instance)
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/network-range-id = 111
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/network-prefix = 2001:db8::/48
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools (container)
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools/
/// address-pool[pool-id='0'] (list instance)
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools/
/// address-pool[pool-id='0']/pool-id = 0
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools/
/// address-pool[pool-id='0']/pool-prefix = 2001:db8::1:0/112
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools/
/// address-pool[pool-id='0']/start-address = 2001:db8::1:0
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools/
/// address-pool[pool-id='0']/end-address = 2001:db8::1:ffff
/// /ietf-dhcpv6-server:server/server-config/network-ranges/
/// network-range[network-range-id='111']/address-pools/
/// address-pool[pool-id='0']/max-address-count = disabled
/// @endcode
///
/// An example in JSON and YANG formats for the Kea model:
/// @code
/// [
/// {
/// "pool": "2001:db8::1 - 2001:db8::100"
/// }
/// ]
/// @endcode
/// @code
/// /kea-dhcp6-server:config (container)
/// /kea-dhcp6-server:config/subnet6[id='111'] (list instance)
/// /kea-dhcp6-server:config/subnet6[id='111']/id = 111
/// /kea-dhcp6-server:config/subnet6[id='111']/subnet = 2001:db8::/48
/// /kea-dhcp6-server:config/subnet6[id='111']/
/// pool[start-address='2001:db8::1'][end-address='2001:db8::100']
/// (list instance)
/// /kea-dhcp6-server:config/subnet6[id='111']/
/// pool[start-address='2001:db8::1'][end-address='2001:db8::100']/
/// start-address = 2001:db8::1
/// /kea-dhcp6-server:config/subnet6[id='111']/
/// pool[start-address='2001:db8::1'][end-address='2001:db8::100']/
/// end-address = 2001:db8::100
/// @endcode
class TranslatorPool : virtual public TranslatorOptionDataList {
public:
/// @brief Constructor.
///
/// @param session Sysrepo session.
/// @param model Model name.
TranslatorPool(sysrepo::S_Session session, const std::string& model);
/// @brief Destructor.
virtual ~TranslatorPool();
/// @brief Get and translate a pool from YANG to JSON.
///
/// @param xpath The xpath of the pool.
/// @return JSON representation of the pool.
/// @throw SysrepoError when sysrepo raises an error.
isc::data::ElementPtr getPool(const std::string& xpath);
/// @brief Translate and set (address) pool from JSON to YANG.
///
/// @param xpath The xpath of the pool.
/// @param elem The JSON element.
void setPool(const std::string& xpath, isc::data::ConstElementPtr elem);
/// @brief Get start and end addresses from prefix.
///
/// @param prefix The prefix string.
/// @param start_address The reference to the start_address.
/// @param end_address The reference to the end_address.
/// @throw BadValue when the prefix is not correctly formed.
static void getAddresses(const std::string& prefix,
std::string& start_address,
std::string& end_address);
protected:
/// @brief getPool for ietf-dhcpv6-server.
///
/// @param xpath The xpath of the pool.
/// @return JSON representation of the pool.
/// @throw BadValue on pool without prefix.
isc::data::ElementPtr getPoolIetf6(const std::string& xpath);
/// @brief setPool for ietf-dhcpv6-server.
///
/// @param xpath The xpath of the pool.
/// @param elem The JSON element.
/// @throw BadValue on pool without prefix and with a range which is
/// not a prefix.
void setPoolIetf6(const std::string& xpath,
isc::data::ConstElementPtr elem);
/// @brief getPool for kea-dhcp[46]-server.
///
/// @param xpath The xpath of the pool.
/// @return JSON representation of the pool.
/// @throw BadValue on a pool without prefix and start or end address.
isc::data::ElementPtr getPoolKea(const std::string& xpath);
/// @brief setPool for kea-dhcp[46]-server.
///
/// @param xpath The xpath of the pool.
/// @param elem The JSON element.
/// @throw BadValue on a pool without a well formed prefix.
void setPoolKea(const std::string& xpath, isc::data::ConstElementPtr elem);
};
/// @brief A translator class for converting pools between YANG and JSON.
///
/// Currently supports on kea-dhcp[46]-server and partially ietf-dhcpv6-server.
class TranslatorPools : virtual public TranslatorPool {
public:
/// @brief Constructor.
///
/// @param session Sysrepo session.
/// @param model Model name.
TranslatorPools(sysrepo::S_Session session, const std::string& model);
/// @brief Destructor.
virtual ~TranslatorPools();
/// @brief Get and translate pools from YANG to JSON.
///
/// @param xpath The xpath of the pool list.
/// @throw SysrepoError when sysrepo raises an error.
isc::data::ElementPtr getPools(const std::string& xpath);
/// @brief Translate and set (address) pools from JSON to YANG.
///
/// @param xpath The xpath of the pool list.
/// @param elem The JSON element.
void setPools(const std::string& xpath, isc::data::ConstElementPtr elem);
protected:
/// @brief getPools for ietf-dhcpv6-server.
///
/// @param xpath The xpath of the pool list.
isc::data::ElementPtr getPoolsIetf(const std::string& xpath);
/// @brief getPools for kea-dhcp[46]-server.
///
/// @param xpath The xpath of the pool list.
isc::data::ElementPtr getPoolsKea(const std::string& xpath);
/// @brief setPools using pool-id.
///
/// @param xpath The xpath of the pool list.
/// @param elem The JSON element.
void setPoolsById(const std::string& xpath,
isc::data::ConstElementPtr elem);
/// @brief setPools using address pair.
///
/// @param xpath The xpath of the pool list.
/// @param elem The JSON element.
/// @throw BadValue on a pool without a prefix.
void setPoolsByAddresses(const std::string& xpath,
isc::data::ConstElementPtr elem);
};
} // namespace yang
} // namespace isc
#endif // ISC_TRANSLATOR_POOL_H
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