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Diffstat (limited to 'src/lib/dhcpsrv/config_backend_pool_dhcp4.h')
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diff --git a/src/lib/dhcpsrv/config_backend_pool_dhcp4.h b/src/lib/dhcpsrv/config_backend_pool_dhcp4.h new file mode 100644 index 0000000..1810d5f --- /dev/null +++ b/src/lib/dhcpsrv/config_backend_pool_dhcp4.h @@ -0,0 +1,619 @@ +// Copyright (C) 2018-2022 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 CONFIG_BACKEND_POOL_DHCP4_H +#define CONFIG_BACKEND_POOL_DHCP4_H + +#include <cc/stamped_value.h> +#include <config_backend/base_config_backend_pool.h> +#include <database/backend_selector.h> +#include <database/server.h> +#include <database/server_collection.h> +#include <database/server_selector.h> +#include <dhcp/option.h> +#include <dhcp/option_definition.h> +#include <dhcpsrv/cfg_option.h> +#include <dhcpsrv/client_class_def.h> +#include <dhcpsrv/config_backend_dhcp4.h> +#include <dhcpsrv/shared_network.h> +#include <dhcpsrv/subnet.h> +#include <boost/date_time/posix_time/ptime.hpp> +#include <string> + +namespace isc { +namespace dhcp { + +/// @brief Implementation of the Configuration Backend Pool for DHCPv4. +/// +/// All POSIX times specified in the methods belonging to this +/// class must be local times. +class ConfigBackendPoolDHCPv4 : public cb::BaseConfigBackendPool<ConfigBackendDHCPv4> { +public: + + /// @brief Retrieves a single subnet by subnet_prefix. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet_prefix Prefix of the subnet to be retrieved. + /// @return Pointer to the retrieved subnet or NULL if not found. + virtual Subnet4Ptr + getSubnet4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& subnet_prefix) const; + + /// @brief Retrieves a single subnet by subnet identifier. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet_id Identifier of a subnet to be retrieved. + /// @return Pointer to the retrieved subnet or NULL if not found. + virtual Subnet4Ptr + getSubnet4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const SubnetID& subnet_id) const; + + /// @brief Retrieves all subnets. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Collection of subnets or empty collection if no subnet found. + virtual Subnet4Collection + getAllSubnets4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector) const; + + /// @brief Retrieves subnets modified after specified time. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Lower bound subnet modification time. + /// @return Collection of subnets or empty collection if no subnet found. + virtual Subnet4Collection + getModifiedSubnets4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time) const; + + /// @brief Retrieves all subnets belonging to a specified shared network. + /// + /// @note: Returning a Subnet4Collection instead of a + /// Subnet4SimpleCollection can be considered as overkilling + /// but makes this code far simpler. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param shared_network_name Name of the shared network for which the + /// subnets should be retrieved. + /// @return Collection of subnets or empty collection if no subnet found. + virtual Subnet4Collection + getSharedNetworkSubnets4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& shared_network_name) const; + + /// @brief Retrieves shared network by name. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param name Name of the shared network to be retrieved. + /// @return Pointer to the shared network or NULL if not found. + virtual SharedNetwork4Ptr + getSharedNetwork4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& name) const; + + /// @brief Retrieves all shared networks. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Collection of shared network or empty collection if + /// no shared network found. + virtual SharedNetwork4Collection + getAllSharedNetworks4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector) const; + + /// @brief Retrieves shared networks modified after specified time. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Lower bound shared network modification time. + /// @return Collection of shared network or empty collection if + /// no shared network found. + virtual SharedNetwork4Collection + getModifiedSharedNetworks4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time) const; + + /// @brief Retrieves single option definition by code and space. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param code Code of the option to be retrieved. + /// @param space Option space of the option to be retrieved. + /// @return Pointer to the option definition or NULL if not found. + virtual OptionDefinitionPtr + getOptionDef4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const uint16_t code, + const std::string& space) const; + + /// @brief Retrieves all option definitions. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Collection of option definitions or empty collection if + /// no option definition found. + virtual OptionDefContainer + getAllOptionDefs4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector) const; + + /// @brief Retrieves option definitions modified after specified time. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Lower bound option definition modification + /// time. + /// @return Collection of option definitions or empty collection if + /// no option definition found. + virtual OptionDefContainer + getModifiedOptionDefs4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time) const; + + /// @brief Retrieves single option by code and space. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param code Option code. + /// @param space Option space. + /// @return Pointer to the retrieved option descriptor or null if + /// no option was found. + virtual OptionDescriptorPtr + getOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const uint16_t code, + const std::string& space) const; + + /// @brief Retrieves all global options. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Collection of global options or empty collection if no + /// option found. + virtual OptionContainer + getAllOptions4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector) const; + + /// @brief Retrieves option modified after specified time. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Lower bound option modification time. + /// @return Collection of global options or empty collection if no + /// option found. + virtual OptionContainer + getModifiedOptions4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time) const; + + /// @brief Retrieves global parameter value. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param name Name of the global parameter to be retrieved. + /// @return Value of the global parameter. + virtual data::StampedValuePtr + getGlobalParameter4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& name) const; + + /// @brief Retrieves all global parameters. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + virtual data::StampedValueCollection + getAllGlobalParameters4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector) const; + + /// @brief Retrieves global parameters modified after specified time. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Lower bound subnet modification time. + /// @return Collection of modified global parameters. + virtual data::StampedValueCollection + getModifiedGlobalParameters4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time) const; + + /// @brief Retrieves a client class by name. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param name Client class name. + /// @return Pointer to the retrieved client class. + virtual ClientClassDefPtr + getClientClass4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& name) const; + + /// @brief Retrieves all client classes. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Collection of client classes. + virtual ClientClassDictionary + getAllClientClasses4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector) const; + + /// @brief Retrieves client classes modified after specified time. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Modification time. + /// @return Collection of client classes. + virtual ClientClassDictionary + getModifiedClientClasses4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time) const; + + /// @brief Retrieves the most recent audit entries. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param modification_time Timestamp being a lower limit for the returned + /// result set, i.e. entries later than specified time are returned. + /// @param modification_id Identifier being a lower limit for the returned + /// result set, used when two (or more) entries have the same + /// modification_time. + /// @return Collection of audit entries. + virtual db::AuditEntryCollection + getRecentAuditEntries(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const boost::posix_time::ptime& modification_time, + const uint64_t& modification_id) const; + + /// @brief Retrieves all servers from the particular backend. + /// + /// This method returns the list of servers excluding the logical server + /// 'all'. + /// + /// @param backend_selector Backend selector. + /// @return Collection of servers from the backend. + virtual db::ServerCollection + getAllServers4(const db::BackendSelector& backend_selector) const; + + /// @brief Retrieves a server from the particular backend. + /// + /// @param backend_selector Backend selector. + /// @param server_tag Tag of the server to be retrieved. + /// @return Pointer to the server instance or null pointer if no server + /// with the particular tag was found. + virtual db::ServerPtr + getServer4(const db::BackendSelector& backend_selector, + const data::ServerTag& server_tag) const; + + /// @brief Creates or updates a subnet. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet Subnet to be added or updated. + virtual void + createUpdateSubnet4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const Subnet4Ptr& subnet); + + /// @brief Creates or updates a shared network. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param shared_network Shared network to be added or updated. + virtual void + createUpdateSharedNetwork4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const SharedNetwork4Ptr& shared_network); + + /// @brief Creates or updates an option definition. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param option_def Option definition to be added or updated. + virtual void + createUpdateOptionDef4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const OptionDefinitionPtr& option_def); + + /// @brief Creates or updates global option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param option Option to be added or updated. + virtual void + createUpdateOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const OptionDescriptorPtr& option); + + /// @brief Creates or updates shared network level option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param shared_network_name Name of a shared network to which option + /// belongs. + /// @param option Option to be added or updated. + virtual void + createUpdateOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& shared_network_name, + const OptionDescriptorPtr& option); + + /// @brief Creates or updates subnet level option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet_id Identifier of a subnet to which option belongs. + /// @param option Option to be added or updated. + virtual void + createUpdateOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const SubnetID& subnet_id, + const OptionDescriptorPtr& option); + + /// @brief Creates or updates pool level option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param pool_start_address Lower bound address of the pool to which + /// the option belongs. + /// @param pool_end_address Upper bound address of the pool to which the + /// option belongs. + /// @param option Option to be added or updated. + virtual void + createUpdateOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const asiolink::IOAddress& pool_start_address, + const asiolink::IOAddress& pool_end_address, + const OptionDescriptorPtr& option); + + /// @brief Creates or updates global string parameter. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param value Value of the global parameter. + virtual void + createUpdateGlobalParameter4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const data::StampedValuePtr& value); + + /// @brief Creates or updates DHCPv4 client class. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param client_class Client class to be added or updated. + /// @param follow_class_name name of the class after which the + /// new or updated class should be positioned. An empty value + /// causes the class to be appended at the end of the class + /// hierarchy. + virtual void + createUpdateClientClass4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const ClientClassDefPtr& client_class, + const std::string& follow_class_name); + + /// @brief Creates or updates a server. + /// + /// @param backend_selector Backend selector. + /// @param server Instance of the server to be stored. + virtual void + createUpdateServer4(const db::BackendSelector& backend_selector, + const db::ServerPtr& server); + + /// @brief Deletes subnet by prefix. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet_prefix Prefix of the subnet to be deleted. + /// @return Number of deleted subnets. + virtual uint64_t + deleteSubnet4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& subnet_prefix); + + /// @brief Deletes subnet by identifier. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet_id Identifier of the subnet to be deleted. + /// @return Number of deleted subnets. + virtual uint64_t + deleteSubnet4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const SubnetID& subnet_id); + + /// @brief Deletes all subnets. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Number of deleted subnets. + virtual uint64_t + deleteAllSubnets4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector); + + /// @brief Deletes all subnets belonging to a specified shared network. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param shared_network_name Name of the shared network for which the + /// subnets should be deleted. + /// @return Number of deleted subnets. + virtual uint64_t + deleteSharedNetworkSubnets4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& shared_network_name); + + /// @brief Deletes shared network by name. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param name Name of the shared network to be deleted. + /// @return Number of deleted shared networks. + virtual uint64_t + deleteSharedNetwork4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& name); + + /// @brief Deletes all shared networks. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Number of deleted shared networks. + virtual uint64_t + deleteAllSharedNetworks4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector); + + /// @brief Deletes option definition. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param code Code of the option to be deleted. + /// @param space Option space of the option to be deleted. + /// @return Number of deleted option definitions. + virtual uint64_t + deleteOptionDef4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const uint16_t code, + const std::string& space); + + /// @brief Deletes all option definitions. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Number of deleted option definitions. + virtual uint64_t + deleteAllOptionDefs4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector); + + /// @brief Deletes global option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param code Code of the option to be deleted. + /// @param space Option space of the option to be deleted. + /// @return Number of deleted options. + virtual uint64_t + deleteOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const uint16_t code, + const std::string& space); + + /// @brief Deletes shared network level option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param shared_network_name Name of the shared network which option + /// belongs to. + /// @param code Code of the option to be deleted. + /// @param space Option space of the option to be deleted. + virtual uint64_t + deleteOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& shared_network_name, + const uint16_t code, + const std::string& space); + + /// @brief Deletes subnet level option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param subnet_id Identifier of the subnet to which deleted option + /// belongs. + /// @param code Code of the deleted option. + /// @param space Option space of the deleted option. + /// @return Number of deleted options. + virtual uint64_t + deleteOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const SubnetID& subnet_id, + const uint16_t code, const std::string& space); + + /// @brief Deletes pool level option. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param pool_start_address Lower bound address of the pool to which + /// deleted option belongs. + /// @param pool_end_address Upper bound address of the pool to which the + /// deleted option belongs. + /// @param code Code of the deleted option. + /// @param space Option space of the deleted option. + /// @return Number of deleted options. + virtual uint64_t + deleteOption4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const asiolink::IOAddress& pool_start_address, + const asiolink::IOAddress& pool_end_address, + const uint16_t code, + const std::string& space); + + /// @brief Deletes global parameter. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param name Name of the global parameter to be deleted. + /// @return Number of deleted global parameters. + virtual uint64_t + deleteGlobalParameter4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& name); + + /// @brief Deletes all global parameters. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Number of deleted global parameters. + virtual uint64_t + deleteAllGlobalParameters4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector); + + /// @brief Deletes DHCPv4 client class. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @param name Name of the class to be deleted. + /// @return Number of deleted client classes. + virtual uint64_t + deleteClientClass4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector, + const std::string& name); + + /// @brief Deletes all client classes. + /// + /// @param backend_selector Backend selector. + /// @param server_selector Server selector. + /// @return Number of deleted client classes. + virtual uint64_t + deleteAllClientClasses4(const db::BackendSelector& backend_selector, + const db::ServerSelector& server_selector); + + /// @brief Deletes a server from the backend. + /// + /// @param backend_selector Backend selector. + /// @param server_tag Tag of the server to be deleted. + /// @return Number of deleted servers. + virtual uint64_t + deleteServer4(const db::BackendSelector& backend_selector, + const data::ServerTag& server_tag); + + /// @brief Deletes all servers from the backend except the logical + /// server 'all'. + /// + /// @param backend_selector Backend selector. + /// @return Number of deleted servers. + virtual uint64_t + deleteAllServers4(const db::BackendSelector& backend_selector); +}; + + +} // end of namespace isc::dhcp +} // end of namespace isc + +#endif // CONFIG_BACKEND_POOL_DHCP4_H |