diff options
Diffstat (limited to 'src/bin/dhcp4/dhcp4_srv.h')
| -rw-r--r-- | src/bin/dhcp4/dhcp4_srv.h | 78 |
1 files changed, 51 insertions, 27 deletions
diff --git a/src/bin/dhcp4/dhcp4_srv.h b/src/bin/dhcp4/dhcp4_srv.h index 147d12c121..b8ce076cef 100644 --- a/src/bin/dhcp4/dhcp4_srv.h +++ b/src/bin/dhcp4/dhcp4_srv.h @@ -1,4 +1,4 @@ -// Copyright (C) 2011-2021 Internet Systems Consortium, Inc. ("ISC") +// Copyright (C) 2011-2022 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 @@ -72,9 +72,11 @@ public: /// @param alloc_engine Pointer to the instance of the Allocation Engine /// used by the server. /// @param query Pointer to the client message. + /// @param context Pointer to the client context. /// @param subnet Pointer to the subnet to which the client belongs. /// @param drop if it is true the packet will be dropped. Dhcpv4Exchange(const AllocEnginePtr& alloc_engine, const Pkt4Ptr& query, + AllocEngine::ClientContext4Ptr& context, const Subnet4Ptr& subnet, bool& drop); /// @brief Initializes the instance of the response message. @@ -126,6 +128,24 @@ public: /// server's response. void setReservedMessageFields(); + /// @brief Set host identifiers within a context. + /// + /// This method sets an ordered list of host identifier types and + /// values which the server should use to find host reservations. + /// The order of the set is determined by the configuration parameter, + /// host-reservation-identifiers + /// + /// @param context pointer to the context. + static void setHostIdentifiers(AllocEngine::ClientContext4Ptr context); + + /// @brief Removed evaluated client classes. + /// + /// @todo: keep the list of dependent evaluated classes so + /// removed only them. + /// + /// @param query the query message. + static void removeDependentEvaluatedClasses(const Pkt4Ptr& query); + /// @brief Assigns classes retrieved from host reservation database. /// /// @param context pointer to the context. @@ -152,16 +172,6 @@ public: /// @param pkt packet to be classified static void classifyPacket(const Pkt4Ptr& pkt); -private: - - /// @public - /// @brief Assign class using vendor-class-identifier option - /// - /// @note This is the first part of @ref classifyPacket - /// - /// @param pkt packet to be classified - static void classifyByVendor(const Pkt4Ptr& pkt); - /// @brief Evaluate classes. /// /// @note Second part of the classification. @@ -174,6 +184,16 @@ private: /// UNKNOWN classes are skipped, if true only these classes are evaluated. static void evaluateClasses(const Pkt4Ptr& pkt, bool depend_on_known); +private: + + /// @public + /// @brief Assign class using vendor-class-identifier option + /// + /// @note This is the first part of @ref classifyPacket + /// + /// @param pkt packet to be classified + static void classifyByVendor(const Pkt4Ptr& pkt); + /// @brief Copies default parameters from client's to server's message /// /// Some fields are copied from client's message into server's response, @@ -196,14 +216,6 @@ private: /// not NULL. void copyDefaultOptions(); - /// @brief Set host identifiers within a context. - /// - /// This method sets an ordered list of host identifier types and - /// values which the server should use to find host reservations. - /// The order of the set is determined by the configuration parameter, - /// host-reservation-identifiers - void setHostIdentifiers(); - /// @brief Pointer to the allocation engine used by the server. AllocEnginePtr alloc_engine_; @@ -453,6 +465,16 @@ public: return (test_send_responses_to_source_); } + /// @brief Initialize client context and perform early global + /// reservations lookup. + /// + /// @param query The query message. + /// @param ctx Pointer to client context. + /// @return true if processing can continue, false if the query must be + /// dropped. + bool earlyGHRLookup(const Pkt4Ptr& query, + AllocEngine::ClientContext4Ptr ctx); + protected: /// @name Functions filtering and sanity-checking received messages. @@ -566,9 +588,10 @@ protected: /// as an offer to a client if it should be served. /// /// @param discover DISCOVER message received from client + /// @param context pointer to the client context /// /// @return OFFER message or NULL - Pkt4Ptr processDiscover(Pkt4Ptr& discover); + Pkt4Ptr processDiscover(Pkt4Ptr& discover, AllocEngine::ClientContext4Ptr& context); /// @brief Processes incoming REQUEST and returns REPLY response. /// @@ -580,8 +603,8 @@ protected: /// Returns ACK message, NAK message, or NULL /// /// @param request a message received from client - /// @param [out] context pointer to the client context where allocated - /// and deleted leases are stored. + /// @param context pointer to the client context where allocated and + /// deleted leases are stored. /// /// @return ACK or NAK message Pkt4Ptr processRequest(Pkt4Ptr& request, AllocEngine::ClientContext4Ptr& context); @@ -592,8 +615,8 @@ protected: /// this function does not return anything. /// /// @param release message received from client - /// @param [out] context pointer to the client context where released - /// lease is stored. + /// @param context pointer to the client context where released lease is + /// stored. void processRelease(Pkt4Ptr& release, AllocEngine::ClientContext4Ptr& context); /// @brief Process incoming DHCPDECLINE messages. @@ -603,16 +626,17 @@ protected: /// the client and if it does, calls @ref declineLease. /// /// @param decline message received from client - /// @param [out] context pointer to the client context where declined - /// lease is stored. + /// @param context pointer to the client context where declined lease is + /// stored. void processDecline(Pkt4Ptr& decline, AllocEngine::ClientContext4Ptr& context); /// @brief Processes incoming DHCPINFORM messages. /// /// @param inform message received from client + /// @param context pointer to the client context /// /// @return DHCPACK to be sent to the client. - Pkt4Ptr processInform(Pkt4Ptr& inform); + Pkt4Ptr processInform(Pkt4Ptr& inform, AllocEngine::ClientContext4Ptr& context); /// @brief Build the configured option list /// |