diff options
Diffstat (limited to 'src/libcharon/tnc/imv')
| -rw-r--r-- | src/libcharon/tnc/imv/imv.h | 175 | ||||
| -rw-r--r-- | src/libcharon/tnc/imv/imv_manager.h | 134 | ||||
| -rw-r--r-- | src/libcharon/tnc/imv/imv_recommendations.c | 24 | ||||
| -rw-r--r-- | src/libcharon/tnc/imv/imv_recommendations.h | 117 |
4 files changed, 450 insertions, 0 deletions
diff --git a/src/libcharon/tnc/imv/imv.h b/src/libcharon/tnc/imv/imv.h new file mode 100644 index 000000000..26874ab0b --- /dev/null +++ b/src/libcharon/tnc/imv/imv.h @@ -0,0 +1,175 @@ +/* + * Copyright (C) 2010 Andreas Steffen + * HSR 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. + */ + +/** + * @defgroup imv imv + * @ingroup tnc + * + * @defgroup imvt imv + * @{ @ingroup imv + */ + +#ifndef IMV_H_ +#define IMV_H_ + +#include <tnc/tncifimv.h> +#include <library.h> + +typedef struct imv_t imv_t; + +/** + * Controls a single Integrity Measurement Verifier (IMV) + */ +struct imv_t { + + /** + * The TNC Server calls this function to initialize the IMV and agree on + * the API version number to be used. It also supplies the IMV ID, an IMV + * identifier that the IMV must use when calling TNC Server callback functions. + * + * @param imvID IMV ID assigned by TNCS + * @param minVersion minimum API version supported + * @param maxVersion maximum API version supported by TNCS + * @param OutActualVersion mutually supported API version number + * @return TNC result code + */ + TNC_Result (*initialize)(TNC_IMVID imvID, + TNC_Version minVersion, + TNC_Version maxVersion, + TNC_Version *OutActualVersion); + + /** + * The TNC Server calls this function to inform the IMV that the state of + * the network connection identified by connectionID has changed to newState. + * + * @param imvID IMV ID assigned by TNCS + * @param connectionID network connection ID assigned by TNCS + * @param newState new network connection state + * @return TNC result code + */ + TNC_Result (*notify_connection_change)(TNC_IMVID imvID, + TNC_ConnectionID connectionID, + TNC_ConnectionState newState); + + /** + * The TNC Server calls this function at the end of an Integrity Check + * Handshake (after all IMC-IMV messages have been delivered) to solicit + * recommendations from IMVs that have not yet provided a recommendation. + * + * @param imvID IMV ID assigned by TNCS + * @param connectionID network connection ID assigned by TNCS + * @return TNC result code + */ + TNC_Result (*solicit_recommendation)(TNC_IMVID imvID, + TNC_ConnectionID connectionID); + + /** + * The TNC Server calls this function to deliver a message to the IMV. + * The message is contained in the buffer referenced by message and contains + * the number of octets indicated by messageLength. The type of the message + * is indicated by messageType. + * + * @param imvID IMV ID assigned by TNCS + * @param connectionID network connection ID assigned by TNCS + * @param message reference to buffer containing message + * @param messageLength number of octets in message + * @param messageType message type of message + * @return TNC result code + */ + TNC_Result (*receive_message)(TNC_IMVID imvID, + TNC_ConnectionID connectionID, + TNC_BufferReference message, + TNC_UInt32 messageLength, + TNC_MessageType messageType); + + /** + * The TNC Server calls this function to notify IMVs that all IMC messages + * received in a batch have been delivered and this is the IMV’s last chance + * to send a message in the batch of IMV messages currently being collected. + * + * @param imvID IMV ID assigned by TNCS + * @param connectionID network connection ID assigned by TNCS + * @return TNC result code + */ + TNC_Result (*batch_ending)(TNC_IMVID imvID, + TNC_ConnectionID connectionID); + + /** + * The TNC Server calls this function to close down the IMV. + * + * @param imvID IMV ID assigned by TNCS + * @return TNC result code + */ + TNC_Result (*terminate)(TNC_IMVID imvID); + + /** + * IMVs implementing the UNIX/Linux Dynamic Linkage platform binding MUST + * define this additional function. The TNC Server MUST call the function + * immediately after calling TNC_IMV_Initialize to provide a pointer to the + * TNCS bind function. The IMV can then use the TNCS bind function to obtain + * pointers to any other TNCS functions. + * + * @param imvID IMV ID assigned by TNCS + * @param bindFunction pointer to TNC_TNCS_BindFunction + * @return TNC result code + */ + TNC_Result (*provide_bind_function)(TNC_IMVID imvID, + TNC_TNCS_BindFunctionPointer bindFunction); + + /** + * Sets the ID of an imv_t object. + * + * @param id IMV ID to be assigned + */ + void (*set_id)(imv_t *this, TNC_IMVID id); + + /** + * Returns the ID of an imv_t object. + * + * @return IMV ID assigned by TNCS + */ + TNC_IMVID (*get_id)(imv_t *this); + + /** + * Returns the name of an imv_t object. + * + * @return name of IMV + */ + char* (*get_name)(imv_t *this); + + /** + * Sets the supported message types of an imv_t object. + * + * @param supported_types list of messages type supported by IMV + * @param type_count number of supported message types + */ + void (*set_message_types)(imv_t *this, TNC_MessageTypeList supported_types, + TNC_UInt32 type_count); + + /** + * Check if the IMV supports a given message type. + * + * @param message_type message type + * @return TRUE if supported + */ + bool (*type_supported)(imv_t *this, TNC_MessageType message_type); + + /** + * Destroys an imv_t object. + */ + void (*destroy)(imv_t *this); +}; + +#endif /** IMV_H_ @}*/ diff --git a/src/libcharon/tnc/imv/imv_manager.h b/src/libcharon/tnc/imv/imv_manager.h new file mode 100644 index 000000000..b5c581a75 --- /dev/null +++ b/src/libcharon/tnc/imv/imv_manager.h @@ -0,0 +1,134 @@ +/* + * Copyright (C) 2010 Andreas Steffen + * HSR 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. + */ + +/** + * @defgroup imv_manager imv_manager + * @{ @ingroup imv + */ + +#ifndef IMV_MANAGER_H_ +#define IMV_MANAGER_H_ + +#include "imv.h" +#include "imv_recommendations.h" + +#include <library.h> + +typedef struct imv_manager_t imv_manager_t; + +/** + * The IMV manager controls all IMV instances. + */ +struct imv_manager_t { + + /** + * Add an IMV instance + * + * @param imv IMV instance + * @return TRUE if initialization successful + */ + bool (*add)(imv_manager_t *this, imv_t *imv); + + /** + * Remove an IMV instance from the list and return it + * + * @param id ID of IMV instance + * @return removed IMC instance + */ + imv_t* (*remove)(imv_manager_t *this, TNC_IMVID id); + + /** + * Get the configured recommendation policy + * + * @return configured recommendation policy + */ + recommendation_policy_t (*get_recommendation_policy)(imv_manager_t *this); + + /** + * Create an empty set of IMV recommendations and evaluations + * + * @return instance of a recommendations_t list + */ + recommendations_t* (*create_recommendations)(imv_manager_t *this); + + /** + * Enforce the TNC recommendation on the IKE_SA by either inserting an + * allow|isolate group membership rule (TRUE) or by blocking access (FALSE) + * + * @param void TNC action recommendation + * @return TRUE for allow|isolate, FALSE for none + */ + bool (*enforce_recommendation)(imv_manager_t *this, + TNC_IMV_Action_Recommendation rec); + + /** + * Notify all IMV instances + * + * @param state communicate the state a connection has reached + */ + void (*notify_connection_change)(imv_manager_t *this, + TNC_ConnectionID id, + TNC_ConnectionState state); + + /** + * Sets the supported message types reported by a given IMV + * + * @param id ID of reporting IMV + * @param supported_types list of messages type supported by IMV + * @param type_count number of supported message types + * @return TNC result code + */ + TNC_Result (*set_message_types)(imv_manager_t *this, + TNC_IMVID id, + TNC_MessageTypeList supported_types, + TNC_UInt32 type_count); + + /** + * Solicit recommendations from IMVs that have not yet provided one + * + * @param id connection ID + */ + void (*solicit_recommendation)(imv_manager_t *this, TNC_ConnectionID id); + + /** + * Delivers a message to interested IMVs. + * + * @param connection_id ID of connection over which message was received + * @param message message + * @param message_len message length + * @param message_type message type + */ + void (*receive_message)(imv_manager_t *this, + TNC_ConnectionID connection_id, + TNC_BufferReference message, + TNC_UInt32 message_len, + TNC_MessageType message_type); + + /** + * Notify all IMVs that all IMC messages received in a batch have been + * delivered and this is the IMVs last chance to send a message in the + * batch of IMV messages currently being collected. + * + * @param id connection ID + */ + void (*batch_ending)(imv_manager_t *this, TNC_ConnectionID id); + + /** + * Destroy an IMV manager and all its controlled instances. + */ + void (*destroy)(imv_manager_t *this); +}; + +#endif /** IMV_MANAGER_H_ @}*/ diff --git a/src/libcharon/tnc/imv/imv_recommendations.c b/src/libcharon/tnc/imv/imv_recommendations.c new file mode 100644 index 000000000..9daaca16c --- /dev/null +++ b/src/libcharon/tnc/imv/imv_recommendations.c @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2010 Andreas Steffen + * HSR 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 "imv_recommendations.h" + +ENUM(recommendation_policy_names, RECOMMENDATION_POLICY_DEFAULT, + RECOMMENDATION_POLICY_ALL, + "default", + "any", + "all" +); + diff --git a/src/libcharon/tnc/imv/imv_recommendations.h b/src/libcharon/tnc/imv/imv_recommendations.h new file mode 100644 index 000000000..3a6e25c9f --- /dev/null +++ b/src/libcharon/tnc/imv/imv_recommendations.h @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2010 Andreas Steffen + * HSR 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. + */ + +/** + * @defgroup imv_recommendations imv_recommendations + * @{ @ingroup imv + */ + +#ifndef IMV_RECOMMENDATIONS_H_ +#define IMV_RECOMMENDATIONS_H_ + +#include <tnc/tncifimv.h> +#include <library.h> + +typedef enum recommendation_policy_t recommendation_policy_t; + +enum recommendation_policy_t { + RECOMMENDATION_POLICY_DEFAULT, + RECOMMENDATION_POLICY_ANY, + RECOMMENDATION_POLICY_ALL +}; + +extern enum_name_t *recommendation_policy_names; + + +typedef struct recommendations_t recommendations_t; + +/** + * Collection of all IMV action recommendations and evaluation results + */ +struct recommendations_t { + + /** + * Deliver an IMV action recommendation and IMV evaluation result to the TNCS + * + * @param imv_id ID of the IMV providing the recommendation + * @param rec action recommendation + * @param eval evaluation result + * @return return code + */ + TNC_Result (*provide_recommendation)(recommendations_t *this, + TNC_IMVID imv_id, + TNC_IMV_Action_Recommendation rec, + TNC_IMV_Evaluation_Result eval); + + /** + * If all IMVs provided a recommendation, derive a consolidated action + * recommendation and evaluation result based on a configured policy + * + * @param rec action recommendation + * @param eval evaluation result + * @return TRUE if all IMVs provided a recommendation + */ + bool (*have_recommendation)(recommendations_t *this, + TNC_IMV_Action_Recommendation *rec, + TNC_IMV_Evaluation_Result *eval); + + /** + * Get the preferred language for remediation messages + * + * @return preferred language + */ + chunk_t (*get_preferred_language)(recommendations_t *this); + + /** + * Set the preferred language for remediation messages + * + * @param pref_lang preferred language + */ + void (*set_preferred_language)(recommendations_t *this, chunk_t pref_lang); + + /** + * Set the reason string + * + * @param id ID of IMV setting the reason string + * @param reason reason string + * @result return code + */ + TNC_Result (*set_reason_string)(recommendations_t *this, TNC_IMVID id, + chunk_t reason); + + /** + * Set the language for reason strings + * + * @param id ID of IMV setting the reason language + * @param reason_lang reason language + * @result return code + */ + TNC_Result (*set_reason_language)(recommendations_t *this, TNC_IMVID id, + chunk_t reason_lang); + + /** + * Enumerates over all IMVs sending a reason string. + * Format: TNC_IMVID *id, chunk_t *reason, chunk_t *reason_language + * + * @return enumerator + */ + enumerator_t* (*create_reason_enumerator)(recommendations_t *this); + /** + * Destroys an imv_t object. + */ + void (*destroy)(recommendations_t *this); +}; + +#endif /** IMV_RECOMMENDATIONS_H_ @}*/ |