redesigned IKE_SA using a transaction mechanism:
removed old state machine reimplemented IKE_SA setup and delete implemented dead peer detection implemented keep-alives a lot of fixes no rekeying yet
This commit is contained in:
Martin Willi
+293
-529
@@ -29,7 +29,6 @@
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#include <encoding/payloads/proposal_substructure.h>
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#include <sa/ike_sa_id.h>
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#include <sa/child_sa.h>
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#include <sa/states/state.h>
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#include <config/configuration.h>
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#include <utils/logger.h>
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#include <utils/randomizer.h>
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@@ -40,25 +39,53 @@
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#include <config/policies/policy.h>
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#include <utils/logger.h>
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typedef enum ike_sa_state_t ike_sa_state_t;
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/**
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* Nonce size in bytes for nonces sending to other peer.
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*
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* @warning Nonce size MUST be between 16 and 256 bytes.
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* @brief State of an IKE_SA.
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*
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* @ingroup sa
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*/
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#define NONCE_SIZE 16
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enum ike_sa_state_t {
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/**
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* IKE_SA just got created, but is not initiating nor responding yet.
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*/
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SA_CREATED,
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/**
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* IKE_SA gets initiated actively or passively
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*/
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SA_CONNECTING,
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/**
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* IKE_SA is fully established
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*/
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SA_ESTABLISHED,
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/**
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* IKE_SA is in progress of deletion
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*/
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SA_DELETING,
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};
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/**
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* String mappings for ike_sa_state_t.
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*/
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extern mapping_t ike_sa_state_m[];
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typedef struct ike_sa_t ike_sa_t;
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/**
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* @brief Class ike_sa_t representing an IKE_SA.
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*
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* An object of this type is managed by an ike_sa_manager_t object
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* and represents an IKE_SA. Message processing is split up in different states.
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* They will handle all related things for the state they represent.
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*
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* @brief Class ike_sa_t representing an IKE_SA.
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*
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* An IKE_SA contains crypto information related to a connection
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* with a peer. It contains multiple IPsec CHILD_SA, for which
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* it is responsible. All traffic is handled by an IKE_SA, using
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* transactions.
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*
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* @b Constructors:
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* - ike_sa_create()
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*
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@@ -66,55 +93,6 @@ typedef struct ike_sa_t ike_sa_t;
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*/
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struct ike_sa_t {
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/**
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* @brief Processes a incoming IKEv2-Message of type message_t.
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*
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* @param this ike_sa_t object object
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* @param[in] message message_t object to process
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* @return
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* - SUCCESS
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* - FAILED
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* - DESTROY_ME if this IKE_SA MUST be deleted
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*/
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status_t (*process_message) (ike_sa_t *this,message_t *message);
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/**
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* @brief Initiate a new connection with given connection_t object.
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*
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* The connection_t object is owned by the IKE_SA after the call, so
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* do not modify or destroy it.
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*
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* @param this calling object
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* @param connection connection to initiate
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* @return
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* - SUCCESS if initialization started
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* - FAILED if in wrong state
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* - DESTROY_ME if initialization failed and IKE_SA MUST be deleted
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*/
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status_t (*initiate_connection) (ike_sa_t *this, connection_t *connection);
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/**
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* @brief Checks whether retransmission is possible.
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*
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* @param this calling object
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* @param message_id ID of the request to retransmit
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* @return
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* - TRUE if retransmit is possible
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* - FALSE if not
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*/
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bool (*retransmit_possible) (ike_sa_t *this, u_int32_t message_id);
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/**
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* @brief Retransmits a request.
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*
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* @param this calling object
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* @param message_id ID of the request to retransmit
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* @return
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* - SUCCESS
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* - NOT_FOUND if request doesn't have to be retransmited
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*/
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status_t (*retransmit_request) (ike_sa_t *this, u_int32_t message_id);
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/**
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* @brief Get the id of the SA.
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*
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@@ -124,161 +102,37 @@ struct ike_sa_t {
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* @return ike_sa's ike_sa_id_t
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*/
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ike_sa_id_t* (*get_id) (ike_sa_t *this);
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/**
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* @brief Get the CHILD_SA with the specified reqid.
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*
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* The reqid is a unique ID for a child SA, which is
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* generated on child SA creation.
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* Returned child_sa_t object is not cloned!
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*
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* @param this calling object
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* @param reqid reqid of the child SA, as used in the kernel
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* @return child_sa, or NULL if not found
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*/
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child_sa_t* (*get_child_sa) (ike_sa_t *this, u_int32_t reqid);
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/**
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* @brief Close the CHILD SA with the specified reqid.
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*
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* Looks for a CHILD SA owned by this IKE_SA, deletes it and
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* notify's the remote peer about the delete. The associated
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* states and policies in the kernel get deleted, if they exist.
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*
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* @param this calling object
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* @param reqid reqid of the child SA, as used in the kernel
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* @return
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* - NOT_FOUND, if IKE_SA has no such CHILD_SA
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* - SUCCESS, if deleted and delete message sent
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*/
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status_t (*delete_child_sa) (ike_sa_t *this, u_int32_t reqid);
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/**
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* @brief Rekey the CHILD SA with the specified reqid.
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*
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* Looks for a CHILD SA owned by this IKE_SA, and start the rekeing.
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*
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* @param this calling object
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* @param spi security parameter index identifying the SA to rekey
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* @return
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* - NOT_FOUND, if IKE_SA has no such CHILD_SA
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* - SUCCESS, if rekeying initiated
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*/
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status_t (*rekey_child_sa) (ike_sa_t *this, u_int32_t reqid);
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/**
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* @brief Get local peer address of the IKE_SA.
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*
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* @param this calling object
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* @return local host_t
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*/
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host_t* (*get_my_host) (ike_sa_t *this);
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/**
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* @brief Get remote peer address of the IKE_SA.
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*
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* @param this calling object
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* @return remote host_t
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*/
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host_t* (*get_other_host) (ike_sa_t *this);
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/**
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* @brief Get own ID of the IKE_SA.
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*
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* @param this calling object
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* @return local identification_t
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*/
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identification_t* (*get_my_id) (ike_sa_t *this);
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/**
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* @brief Get remote ID the IKE_SA.
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*
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* @param this calling object
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* @return remote identification_t
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*/
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identification_t* (*get_other_id) (ike_sa_t *this);
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/**
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* @brief Get the connection of the IKE_SA.
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*
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* The internal used connection specification
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* can be queried to get some data of an IKE_SA.
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* The connection is still owned to the IKE_SA
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* and must not be manipulated.
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*
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* @param this calling object
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* @return connection_t
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*/
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connection_t* (*get_connection) (ike_sa_t *this);
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/**
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* @brief Query NAT detection status for local host.
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*
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* @param this calling object
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* @return TRUE if this host is behind NAT
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*/
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bool (*is_my_host_behind_nat) (ike_sa_t *this);
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/**
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* @brief Query NAT detection status for remote host.
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*
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* @param this calling object
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* @return TRUE if other host is behind NAT
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*/
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bool (*is_other_host_behind_nat) (ike_sa_t *this);
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/**
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* @brief Query NAT detection status for any host.
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*
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* @param this calling object
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* @return TRUE if this or other host is behind NAT
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*/
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bool (*is_any_host_behind_nat) (ike_sa_t *this);
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/**
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* @brief Query timeval of last inbound IKE or ESP traffic.
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* @brief Get the state of the IKE_SA.
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*
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* @param this calling object
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* @return time when the last traffic was seen
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*/
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struct timeval (*get_last_traffic_in_tv) (ike_sa_t *this);
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/**
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* @brief Query timeval of last outbound IKE or ESP traffic.
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*
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* @param this calling object
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* @return time when the last traffic was seen
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*/
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struct timeval (*get_last_traffic_out_tv) (ike_sa_t *this);
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/**
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* @brief Get the state of type of associated state object.
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*
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* @param this calling object
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* @return state of IKE_SA
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* @return state of the IKE_SA
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*/
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ike_sa_state_t (*get_state) (ike_sa_t *this);
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/**
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* @brief Sends a DPD request to the peer.
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*
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* @param this calling object
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* @brief Set the state of the IKE_SA.
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*
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* @param this calling object
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* @param state state to set for the IKE_SA
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*/
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status_t (*send_dpd_request) (ike_sa_t *this);
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void (*set_state) (ike_sa_t *this, ike_sa_state_t ike_sa);
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/**
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* @brief Log the status of a the ike sa to a logger.
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* @brief Initiate a new connection.
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*
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* The status of the IKE SA and all child SAs is logged.
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* Supplying NULL as logger uses the internal child_sa logger
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* to do the logging. The log is only done if the supplied
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* connection name is NULL or matches the connections name.
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*
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* @param this calling object
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* @param logger logger to use for logging
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* @param name name of the connection
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*/
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void (*log_status) (ike_sa_t *this, logger_t *logger, char *name);
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* The connection_t object is owned by the IKE_SA after the call, so
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* do not modify or destroy it.
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*
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* @param this calling object
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* @param connection connection to initiate
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* @return
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* - SUCCESS if initialization started
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* - FAILED if in wrong state
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* - DESTROY_ME if initialization failed and IKE_SA MUST be deleted
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*/
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status_t (*initiate) (ike_sa_t *this, connection_t *connection);
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/**
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* @brief Initiates the deletion of an IKE_SA.
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@@ -295,7 +149,238 @@ struct ike_sa_t {
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* delete (but destroyed).
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*/
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status_t (*delete) (ike_sa_t *this);
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/**
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* @brief Retransmits a request.
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*
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* @param this calling object
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* @param message_id ID of the request to retransmit
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* @return
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* - SUCCESS
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* - NOT_FOUND if request doesn't have to be retransmited
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*/
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status_t (*retransmit_request) (ike_sa_t *this, u_int32_t message_id);
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/**
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* @brief Processes a incoming IKEv2-Message.
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*
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* Message processing may fail. If a critical failure occurs,
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* process_message() return DESTROY_ME. Then the caller must
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* destroy the IKE_SA immediatly, as it is unusable.
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*
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* @param this calling object
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* @param[in] message message to process
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* @return
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* - SUCCESS
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* - FAILED
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* - DESTROY_ME if this IKE_SA MUST be deleted
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*/
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status_t (*process_message) (ike_sa_t *this,message_t *message);
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/**
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* @brief Check if NAT traversal is enabled for this IKE_SA.
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*
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* @param this calling object
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* @return TRUE if NAT traversal enabled
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*/
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bool (*is_natt_enabled) (ike_sa_t *this);
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/**
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* @brief Enable NAT detection for this IKE_SA.
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*
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* If a Network address translation is detected with
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* NAT_DETECTION notifys, a SA must switch to ports
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* 4500. To enable this behavior, call enable_natt().
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* It is relevant which peer is NATted, this is specified
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* with the "local" parameter. Call it twice when both
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* are NATted.
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*
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* @param this calling object
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* @param local TRUE, if we are NATted, FALSE if other
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*/
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void (*enable_natt) (ike_sa_t *this, bool local);
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/**
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* @brief Sends a DPD request to the peer.
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*
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* To check if a peer is still alive, periodic
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* empty INFORMATIONAL messages are sent if no
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* other traffic was received.
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*
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* @param this calling object
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* @return
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* - SUCCESS
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* - DESTROY_ME, if peer did not respond
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*/
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status_t (*send_dpd) (ike_sa_t *this);
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/**
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* @brief Sends a keep alive packet.
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*
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* To refresh NAT tables in a NAT router
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* between the peers, periodic empty
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* UDP packets are sent if no other traffic
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* was sent.
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*
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* @param this calling object
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*/
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void (*send_keepalive) (ike_sa_t *this);
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/**
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* @brief Log the status of a the ike sa to a logger.
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*
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* The status of the IKE SA and all child SAs is logged.
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* Supplying NULL as logger uses the internal child_sa logger
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* to do the logging. The log is only done if the supplied
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* connection name is NULL or matches the connections name.
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*
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* @param this calling object
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* @param logger logger to use for logging
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* @param name name of the connection
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*/
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void (*log_status) (ike_sa_t *this, logger_t *logger, char *name);
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/**
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* @brief Get the internal stored connection_t object.
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*
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* @param this calling object
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* @return pointer to the internal stored connection_t object
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*/
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connection_t *(*get_connection) (ike_sa_t *this);
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/**
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* @brief Set the internal connection object.
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*
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* @param this calling object
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* @param connection object of type connection_t
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*/
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void (*set_connection) (ike_sa_t *this, connection_t *connection);
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/**
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* @brief Get the internal stored policy object.
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*
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* @param this calling object
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* @return pointer to the internal stored policy_t object
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*/
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policy_t *(*get_policy) (ike_sa_t *this);
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/**
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* @brief Set the internal policy_t object.
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*
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* @param this calling object
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* @param policy object of type policy_t
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*/
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void (*set_policy) (ike_sa_t *this, policy_t *policy);
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/**
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* @brief Derive all keys and create the transforms for IKE communication.
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*
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* Keys are derived using the diffie hellman secret, nonces and internal
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* stored SPIs.
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* Already existing objects get destroyed.
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*
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* @param this calling object
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* @param proposal proposal which contains algorithms to use
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* @param dh diffie hellman object with shared secret
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* @param nonce_i initiators nonce
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* @param nonce_r responders nonce
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* @param initiator role of this IKE SA (TRUE = originial initiator)
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*/
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status_t (*build_transforms) (ike_sa_t *this, proposal_t* proposal,
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diffie_hellman_t *dh,
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chunk_t nonce_i, chunk_t nonce_r,
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bool initiator);
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/**
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* @brief Get the multi purpose prf.
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*
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* @param this calling object
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* @return pointer to prf_t object
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*/
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prf_t *(*get_prf) (ike_sa_t *this);
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/**
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* @brief Get the prf-object, which is used to derive keys for child SAs.
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*
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* @param this calling object
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* @return pointer to prf_t object
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||||
*/
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prf_t *(*get_child_prf) (ike_sa_t *this);
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/**
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* @brief Get the prf used for authentication of initiator.
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*
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* @param this calling object
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||||
* @return pointer to prf_t object
|
||||
*/
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prf_t *(*get_prf_auth_i) (ike_sa_t *this);
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|
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/**
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||||
* @brief Get the prf used for authentication of responder.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to prf_t object
|
||||
*/
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||||
prf_t *(*get_prf_auth_r) (ike_sa_t *this);
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||||
|
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/**
|
||||
* @brief Get a CHILD_SA upon request from the other peer.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param spi spi of the CHILD_SA
|
||||
* @return child_sa, or NULL if none found
|
||||
*/
|
||||
child_sa_t* (*get_child_sa) (ike_sa_t *this, u_int32_t spi);
|
||||
|
||||
/**
|
||||
* @brief Close the CHILD SA with the specified reqid.
|
||||
*
|
||||
* Looks for a CHILD SA owned by this IKE_SA, deletes it and
|
||||
* notify's the remote peer about the delete. The associated
|
||||
* states and policies in the kernel get deleted, if they exist.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param reqid reqid of the child SA, as used in the kernel
|
||||
* @return
|
||||
* - NOT_FOUND, if IKE_SA has no such CHILD_SA
|
||||
* - SUCCESS, if deleted and delete message sent
|
||||
*
|
||||
* @TODO use spi, not reqid
|
||||
*/
|
||||
status_t (*delete_child_sa) (ike_sa_t *this, u_int32_t reqid);
|
||||
|
||||
/**
|
||||
* @brief Rekey the CHILD SA with the specified reqid.
|
||||
*
|
||||
* Looks for a CHILD SA owned by this IKE_SA, and start the rekeing.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param spi security parameter index identifying the SA to rekey
|
||||
* @return
|
||||
* - NOT_FOUND, if IKE_SA has no such CHILD_SA
|
||||
* - SUCCESS, if rekeying initiated
|
||||
*
|
||||
* @TODO use spi, not reqid
|
||||
*/
|
||||
status_t (*rekey_child_sa) (ike_sa_t *this, u_int32_t reqid);
|
||||
|
||||
/**
|
||||
* @brief Associates a child SA to this IKE SA
|
||||
*
|
||||
* @param this calling object
|
||||
* @param child_sa child_sa to add
|
||||
*/
|
||||
void (*add_child_sa) (ike_sa_t *this, child_sa_t *child_sa);
|
||||
|
||||
/**
|
||||
* @brief Destroys a CHILD_SA upon request from the other peer.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param spi inbound spi of the CHILD_SA to destroy
|
||||
* @return outbound spi of the destroyed CHILD_SA
|
||||
*/
|
||||
u_int32_t (*destroy_child_sa) (ike_sa_t *this, u_int32_t spi);
|
||||
|
||||
/**
|
||||
* @brief Destroys a ike_sa_t object.
|
||||
*
|
||||
@@ -304,337 +389,16 @@ struct ike_sa_t {
|
||||
void (*destroy) (ike_sa_t *this);
|
||||
};
|
||||
|
||||
|
||||
typedef struct protected_ike_sa_t protected_ike_sa_t;
|
||||
|
||||
/**
|
||||
* @brief Protected functions of an ike_sa_t object.
|
||||
*
|
||||
* This members are only accessed out from
|
||||
* the various state_t implementations.
|
||||
*
|
||||
* @ingroup sa
|
||||
*/
|
||||
struct protected_ike_sa_t {
|
||||
|
||||
/**
|
||||
* Public interface of an ike_sa_t object.
|
||||
*/
|
||||
ike_sa_t public;
|
||||
|
||||
/**
|
||||
* @brief Build an empty IKEv2-Message and fills in default informations.
|
||||
*
|
||||
* Depending on the type of message (request or response), the message id is
|
||||
* either message_id_out or message_id_in.
|
||||
*
|
||||
* Used in state_t Implementation to build an empty IKEv2-Message.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param type exchange type of new message
|
||||
* @param request TRUE, if message has to be a request
|
||||
* @param message new message is stored at this location
|
||||
*/
|
||||
void (*build_message) (protected_ike_sa_t *this, exchange_type_t type, bool request, message_t **message);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored connection_t object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to the internal stored connection_t object
|
||||
*/
|
||||
connection_t *(*get_connection) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Set the internal connection object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param connection object of type connection_t
|
||||
*/
|
||||
void (*set_connection) (protected_ike_sa_t *this, connection_t *connection);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored policy object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to the internal stored policy_t object
|
||||
*/
|
||||
policy_t *(*get_policy) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Set the internal policy_t object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param policy object of type policy_t
|
||||
*/
|
||||
void (*set_policy) (protected_ike_sa_t *this,policy_t *policy);
|
||||
|
||||
/**
|
||||
* @brief Derive all keys and create the transforms for IKE communication.
|
||||
*
|
||||
* Keys are derived using the diffie hellman secret, nonces and internal
|
||||
* stored SPIs.
|
||||
* Already existing objects get destroyed.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param proposal proposal which contains algorithms to use
|
||||
* @param dh diffie hellman object with shared secret
|
||||
* @param nonce_i initiators nonce
|
||||
* @param nonce_r responders nonce
|
||||
*/
|
||||
status_t (*build_transforms) (protected_ike_sa_t *this, proposal_t* proposal,
|
||||
diffie_hellman_t *dh, chunk_t nonce_i, chunk_t nonce_r);
|
||||
|
||||
/**
|
||||
* @brief Send the next request message.
|
||||
*
|
||||
* Also the first retransmit job is created.
|
||||
*
|
||||
* Last stored requested message gets destroyed. Object gets not cloned!
|
||||
*
|
||||
* @param this calling object
|
||||
* @param message pointer to the message which should be sent
|
||||
* @return
|
||||
* - SUCCESS
|
||||
* - FAILED if message id is not next expected one
|
||||
*/
|
||||
status_t (*send_request) (protected_ike_sa_t *this,message_t * message);
|
||||
|
||||
/**
|
||||
* @brief Send the next response message.
|
||||
*
|
||||
* Last stored responded message gets destroyed. Object gets not cloned!
|
||||
*
|
||||
* @param this calling object
|
||||
* @param message pointer to the message which should be sent
|
||||
* return
|
||||
* - SUCCESS
|
||||
* - FAILED if message id is not next expected one
|
||||
*/
|
||||
status_t (*send_response) (protected_ike_sa_t *this,message_t * message);
|
||||
|
||||
/**
|
||||
* @brief Send a notify reply message.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param exchange_type type of exchange in which the notify should be wrapped
|
||||
* @param type type of the notify message to send
|
||||
* @param data notification data
|
||||
*/
|
||||
void (*send_notify) (protected_ike_sa_t *this, exchange_type_t exchange_type, notify_message_type_t type, chunk_t data);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored randomizer_t object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to the internal randomizer_t object
|
||||
*/
|
||||
randomizer_t *(*get_randomizer) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Set the new state_t object of the IKE_SA object.
|
||||
*
|
||||
* The old state_t object gets not destroyed. It's the callers duty to
|
||||
* make sure old state is destroyed (Normally the old state is the caller).
|
||||
*
|
||||
* @param this calling object
|
||||
* @param state pointer to the new state_t object
|
||||
*/
|
||||
void (*set_new_state) (protected_ike_sa_t *this,state_t *state);
|
||||
|
||||
/**
|
||||
* @brief Set the last replied message id.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param message_id message id
|
||||
*/
|
||||
void (*set_last_replied_message_id) (protected_ike_sa_t *this,u_int32_t message_id);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored initiator crypter_t object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to crypter_t object
|
||||
*/
|
||||
crypter_t *(*get_crypter_initiator) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored initiator signer_t object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to signer_t object
|
||||
*/
|
||||
signer_t *(*get_signer_initiator) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored responder crypter_t object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to crypter_t object
|
||||
*/
|
||||
crypter_t *(*get_crypter_responder) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the internal stored responder signer object.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to signer_t object
|
||||
*/
|
||||
signer_t *(*get_signer_responder) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the multi purpose prf.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to prf_t object
|
||||
*/
|
||||
prf_t *(*get_prf) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the prf-object, which is used to derive keys for child SAs.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to prf_t object
|
||||
*/
|
||||
prf_t *(*get_child_prf) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the prf used for authentication of initiator.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to prf_t object
|
||||
*/
|
||||
prf_t *(*get_prf_auth_i) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the prf used for authentication of responder.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return pointer to prf_t object
|
||||
*/
|
||||
prf_t *(*get_prf_auth_r) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Associates a child SA to this IKE SA
|
||||
*
|
||||
* @param this calling object
|
||||
* @param child_sa child_sa to add
|
||||
*/
|
||||
void (*add_child_sa) (protected_ike_sa_t *this, child_sa_t *child_sa);
|
||||
|
||||
/**
|
||||
* @brief Destroys a CHILD_SA upon request from the other peer.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param spi inbound spi of the CHILD_SA to destroy
|
||||
* @return outbound spi of the destroyed CHILD_SA
|
||||
*/
|
||||
u_int32_t (*destroy_child_sa) (protected_ike_sa_t *this, u_int32_t spi);
|
||||
|
||||
/**
|
||||
* @brief Get a CHILD_SA upon request from the other peer.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param spi spi of the CHILD_SA
|
||||
* @return child_sa, or NULL if none found
|
||||
*/
|
||||
child_sa_t* (*get_child_sa) (protected_ike_sa_t *this, u_int32_t spi);
|
||||
|
||||
/**
|
||||
* @brief establish the IKE SA
|
||||
*
|
||||
* @param this calling object
|
||||
*/
|
||||
void (*establish) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the last responded message.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return
|
||||
* - last received as message_t object
|
||||
* - NULL if no last request available
|
||||
*/
|
||||
message_t *(*get_last_responded_message) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Get the last requested message.
|
||||
*
|
||||
* @param this calling object
|
||||
* @return
|
||||
* - last sent as message_t object
|
||||
* - NULL if no last request available
|
||||
*/
|
||||
message_t *(*get_last_requested_message) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Resets message counters and does destroy stored received and sent messages.
|
||||
*
|
||||
* @param this calling object
|
||||
*/
|
||||
void (*reset_message_buffers) (protected_ike_sa_t *this);
|
||||
|
||||
/**
|
||||
* @brief Set NAT detection status for local host.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param nat if TRUE, local host is behing NAT
|
||||
*/
|
||||
void (*set_my_host_behind_nat) (protected_ike_sa_t *this, bool nat);
|
||||
|
||||
/**
|
||||
* @brief Set NAT detection status for remote host.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param nat if TRUE, remote host is behing NAT
|
||||
*/
|
||||
void (*set_other_host_behind_nat) (protected_ike_sa_t *this, bool nat);
|
||||
|
||||
/**
|
||||
* @brief Generate NAT-D payload hash.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param spi_i IKE SPI of initiator
|
||||
* @param spi_r IKE SPI of responder
|
||||
* @param host address and port of the host/interface
|
||||
* @return chunk containing calculated NAT-D hash
|
||||
*/
|
||||
chunk_t (*generate_natd_hash) (protected_ike_sa_t *this, u_int64_t spi_i, u_int64_t spi_r, host_t *host);
|
||||
|
||||
/**
|
||||
* @brief Dynamically update hosts on the associated connection.
|
||||
*
|
||||
* Warning: me and other host are cloned.
|
||||
*
|
||||
* @param this calling object
|
||||
* @param me local address and port
|
||||
* @param other remote address and port
|
||||
*/
|
||||
status_t (*update_connection_hosts) (protected_ike_sa_t *this, host_t *me, host_t *other);
|
||||
|
||||
/**
|
||||
* @brief Return the message id of the last DPD message
|
||||
*
|
||||
* @param this calling object
|
||||
* @return the messages id
|
||||
*/
|
||||
u_int32_t (*get_last_dpd_message_id) (protected_ike_sa_t *this);
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* @brief Creates an ike_sa_t object with a specific ID.
|
||||
*
|
||||
* @warning the Content of internal ike_sa_id_t object can change over time
|
||||
* e.g. when a IKE_SA_INIT has been finished.
|
||||
*
|
||||
* @param[in] ike_sa_id ike_sa_id_t object to associate with new IKE_SA.
|
||||
* The object is internal getting cloned
|
||||
* and so has to be destroyed by the caller.
|
||||
* The ID gets cloned internally.
|
||||
*
|
||||
* @param[in] ike_sa_id ike_sa_id_t object to associate with new IKE_SA
|
||||
* @return ike_sa_t object
|
||||
*
|
||||
* @ingroup sa
|
||||
*/
|
||||
ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id);
|
||||
ike_sa_t *ike_sa_create(ike_sa_id_t *ike_sa_id);
|
||||
|
||||
#endif /*IKE_SA_H_*/
|
||||
|
||||
Reference in New Issue
Block a user