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| -rw-r--r-- | Source/charon/ike_sa.c | 172 | ||||
| -rw-r--r-- | Source/charon/ike_sa.h | 83 |
2 files changed, 255 insertions, 0 deletions
diff --git a/Source/charon/ike_sa.c b/Source/charon/ike_sa.c new file mode 100644 index 000000000..32c833cbe --- /dev/null +++ b/Source/charon/ike_sa.c @@ -0,0 +1,172 @@ +/** + * @file ike_sa.c + * + * @brief Class ike_sa_t. An object of this type is managed by an + * ike_sa_manager_t-object and represents an IKE_SA + * + */ + +/* + * Copyright (C) 2005 Jan Hutter, Martin Willi + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#include "types.h" +#include "linked_list.h" +#include "ike_sa.h" + + +/** + * States in which a IKE_SA can actually be + */ +typedef enum ike_sa_state_e ike_sa_state_t; + +enum ike_sa_state_e{ + + /** + * IKE_SA is is not in a state + */ + NO_STATE, + + /** + * A IKE_SA_INIT-message was sent: role initiator + */ + IKE_SA_INIT_REQUESTED, + + /** + * A IKE_SA_INIT-message was replied: role responder + */ + IKE_SA_INIT_RESPONDED, + + /** + * An IKE_AUTH-message was sent after a successful + * IKE_SA_INIT-exchange: role initiator + */ + IKE_AUTH_REQUESTED, + + /** + * An IKE_AUTH-message was replied: role responder. + * In this state, all the informations for an IKE_SA + * and one CHILD_SA are known. + */ + IKE_SA_INITIALIZED +}; + + +/** + * Private data of an message_t object + */ +typedef struct private_ike_sa_s private_ike_sa_t; + +struct private_ike_sa_s { + + /** + * Public part of a ike_sa_t object + */ + ike_sa_t public; + + + /* Private values */ + /** + * Identifier for the current IKE_SA + */ + ike_sa_id_t *ike_sa_id; + + /** + * Linked List containing the child sa's of the current IKE_SA + */ + linked_list_t *child_sas; + + /** + * Current state of the IKE_SA + */ + ike_sa_state_t current_state; +}; + +/** + * @brief implements function process_message of private_ike_sa_t + */ +static status_t process_message (private_ike_sa_t *this, message_t *message) +{ + /* @TODO Add Message Processing here */ + return SUCCESS; +} + +/** + * @brief implements function process_configuration of private_ike_sa_t + */ +static status_t process_configuration (private_ike_sa_t *this,configuration_t *configuration) +{ + /* + * @TODO Add configuration processing here + */ + return SUCCESS; +} + +/** + * @brief implements function destroy of private_ike_sa_t + */ +static status_t destroy (private_ike_sa_t *this) +{ + if (this == NULL) + { + return FAILED; + } + + this->ike_sa_id->destroy(this->ike_sa_id); + + this->child_sas->destroy(this->child_sas); + + pfree(this); + + return SUCCESS; +} + +/* + * Described in Header + */ +ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id) +{ + private_ike_sa_t *this = alloc_thing(private_ike_sa_t, "private_ike_sa_t"); + if (this == NULL) + { + return NULL; + } + + + /* Public functions */ + this->public.process_message = (status_t(*)(ike_sa_t*, message_t*)) process_message; + this->public.process_configuration = (status_t(*)(ike_sa_t*, configuration_t*)) process_configuration; + this->public.destroy = (status_t(*)(ike_sa_t*))destroy; + + + /* initialize private fields */ + if (ike_sa_id->clone(ike_sa_id,&(this->ike_sa_id)) != SUCCESS) + { + pfree(this); + return NULL; + } + + this->child_sas = linked_list_create(); + if (this->child_sas == NULL) + { + this->ike_sa_id->destroy(this->ike_sa_id); + pfree(this); + return NULL; + } + + /* at creation time, IKE_SA isn't in a specific state */ + this->current_state = NO_STATE; + + return (&this->public); +} diff --git a/Source/charon/ike_sa.h b/Source/charon/ike_sa.h new file mode 100644 index 000000000..f4fbd79a0 --- /dev/null +++ b/Source/charon/ike_sa.h @@ -0,0 +1,83 @@ +/** + * @file ike_sa.h + * + * @brief Class ike_sa_t. An object of this type is managed by an + * ike_sa_manager_t-object and represents an IKE_SA + * + */ + +/* + * Copyright (C) 2005 Jan Hutter, Martin Willi + * Hochschule fuer Technik Rapperswil + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + */ + +#ifndef IKE_SA_H_ +#define IKE_SA_H_ + +#include "types.h" +#include "message.h" +#include "configuration.h" +#include "ike_sa_id.h" + +/** + * @brief This class is used to represent an IKE_SA + * + */ +typedef struct ike_sa_s ike_sa_t; + +struct ike_sa_s { + + /** + * @brief Processes a incoming IKEv2-Message of type message_t + * + * @param this ike_sa_t-object object + * @param[in] message message_t-object to process + * @return SUCCESSFUL if succeeded, FAILED otherwise + */ + status_t (*process_message) (ike_sa_t *this,message_t *message); + + /** + * @brief Processes a specific configuration + * + * This function is called when a new IKE_SA is created + * + * @param this ike_sa_t-message_t object object + * @param[in] message message_t-object to process + * @return SUCCESSFUL if succeeded, FAILED otherwise + */ + status_t (*process_configuration) (ike_sa_t *this,configuration_t *configuration); + + /** + * @brief Destroys a ike_sa_t object + * + * @param this ike_sa_t object + * @return SUCCESSFUL if succeeded, FAILED otherwise + */ + status_t (*destroy) (ike_sa_t *this); +}; + +/** + * Creates an ike_sa_t-object with a specific ike_sa_id_t-object + * + * @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. + * + * @warning the Content of internal ike_sa_id_t-Object can change over time + * e.g. when a IKE_SA_INIT has been finished + * + * @return created ike_sa_t object + */ +ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id); + +#endif /*IKE_SA_H_*/ |