refactored PA-TNC message handling by IMCs

This commit is contained in:
Andreas Steffen 2012-10-17 09:58:00 +02:00
parent 154cae09e3
commit f8a70254a9
15 changed files with 898 additions and 606 deletions

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@ -8,6 +8,7 @@ libimcv_la_LIBADD = $(top_builddir)/src/libtncif/libtncif.la
libimcv_la_SOURCES = \
imcv.h imcv.c \
imc/imc_agent.h imc/imc_agent.c imc/imc_state.h \
imc/imc_msg.h imc/imc_msg.c \
imv/imv_agent.h imv/imv_agent.c imv/imv_state.h \
ietf/ietf_attr.h ietf/ietf_attr.c \
ietf/ietf_attr_assess_result.h ietf/ietf_attr_assess_result.c \

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@ -94,45 +94,6 @@ struct private_imc_agent_t {
TNC_MessageSubtypeList supported_subtypes,
TNC_UInt32 type_count);
/**
* Call when an IMC-IMC message is to be sent
*
* @param imc_id IMC ID assigned by TNCC
* @param connection_id network connection ID assigned by TNCC
* @param msg message to send
* @param msg_len message length in bytes
* @param msg_type message type
* @return TNC result code
*/
TNC_Result (*send_message)(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_MessageType msg_type);
/**
* Call when an IMC-IMC message is to be sent with long message types
*
* @param imc_id IMC ID assigned by TNCC
* @param connection_id network connection ID assigned by TNCC
* @param msg_flags message flags
* @param msg message to send
* @param msg_len message length in bytes
* @param msg_vid message vendor ID
* @param msg_subtype message subtype
* @param dst_imc_id destination IMV ID
* @return TNC result code
*/
TNC_Result (*send_message_long)(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 dst_imv_id);
/**
* Get the value of an attribute associated with a connection
* or with the TNCC as a whole.
@ -205,14 +166,14 @@ METHOD(imc_agent_t, bind_functions, TNC_Result,
this->public.request_handshake_retry = NULL;
}
if (bind_function(this->id, "TNC_TNCC_SendMessage",
(void**)&this->send_message) != TNC_RESULT_SUCCESS)
(void**)&this->public.send_message) != TNC_RESULT_SUCCESS)
{
this->send_message = NULL;
this->public.send_message = NULL;
}
if (bind_function(this->id, "TNC_TNCC_SendMessageLong",
(void**)&this->send_message_long) != TNC_RESULT_SUCCESS)
(void**)&this->public.send_message_long) != TNC_RESULT_SUCCESS)
{
this->send_message_long = NULL;
this->public.send_message_long = NULL;
}
if (bind_function(this->id, "TNC_TNCC_GetAttribute",
(void**)&this->get_attribute) != TNC_RESULT_SUCCESS)
@ -494,167 +455,16 @@ METHOD(imc_agent_t, get_state, bool,
return TRUE;
}
METHOD(imc_agent_t, send_message, TNC_Result,
private_imc_agent_t *this, TNC_ConnectionID connection_id, bool excl,
TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id, TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype, linked_list_t *attr_list)
METHOD(imc_agent_t, get_name, const char*,
private_imc_agent_t *this)
{
TNC_MessageType type;
TNC_UInt32 msg_flags;
TNC_Result result = TNC_RESULT_FATAL;
imc_state_t *state;
pa_tnc_attr_t *attr;
pa_tnc_msg_t *pa_tnc_msg;
chunk_t msg;
enumerator_t *enumerator;
bool attr_added;
state = find_connection(this, connection_id);
if (!state)
{
DBG1(DBG_IMV, "IMC %u \"%s\" has no state for Connection ID %u",
this->id, this->name, connection_id);
return TNC_RESULT_FATAL;
}
while (attr_list->get_count(attr_list))
{
pa_tnc_msg = pa_tnc_msg_create(state->get_max_msg_len(state));
attr_added = FALSE;
enumerator = attr_list->create_enumerator(attr_list);
while (enumerator->enumerate(enumerator, &attr))
{
if (pa_tnc_msg->add_attribute(pa_tnc_msg, attr))
{
attr_added = TRUE;
}
else
{
if (attr_added)
{
break;
}
else
{
DBG1(DBG_IMC, "PA-TNC attribute too large to send, deleted");
attr->destroy(attr);
}
}
attr_list->remove_at(attr_list, enumerator);
}
enumerator->destroy(enumerator);
/* build and send the PA-TNC message via the IF-IMC interface */
if (!pa_tnc_msg->build(pa_tnc_msg))
{
pa_tnc_msg->destroy(pa_tnc_msg);
return TNC_RESULT_FATAL;
}
msg = pa_tnc_msg->get_encoding(pa_tnc_msg);
if (state->has_long(state) && this->send_message_long)
{
if (!src_imc_id)
{
src_imc_id = this->id;
}
msg_flags = excl ? TNC_MESSAGE_FLAGS_EXCLUSIVE : 0;
result = this->send_message_long(src_imc_id, connection_id,
msg_flags, msg.ptr, msg.len, msg_vid,
msg_subtype, dst_imv_id);
}
else if (this->send_message)
{
type = msg_vid << 8 | msg_subtype;
result = this->send_message(this->id, connection_id, msg.ptr,
msg.len, type);
}
pa_tnc_msg->destroy(pa_tnc_msg);
if (result != TNC_RESULT_SUCCESS)
{
break;
}
}
return result;
return this->name;
}
METHOD(imc_agent_t, receive_message, TNC_Result,
private_imc_agent_t *this, imc_state_t *state, chunk_t msg,
TNC_VendorID msg_vid, TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id, TNC_UInt32 dst_imc_id, pa_tnc_msg_t **pa_tnc_msg)
METHOD(imc_agent_t, get_id, TNC_IMCID,
private_imc_agent_t *this)
{
pa_tnc_msg_t *pa_msg;
pa_tnc_attr_t *error_attr;
linked_list_t *error_attr_list;
enumerator_t *enumerator;
TNC_UInt32 src_imc_id, dst_imv_id;
TNC_ConnectionID connection_id;
TNC_Result result;
connection_id = state->get_connection_id(state);
if (state->has_long(state))
{
if (dst_imc_id != TNC_IMCID_ANY)
{
DBG2(DBG_IMC, "IMC %u \"%s\" received message for Connection ID %u "
"from IMV %u to IMC %u", this->id, this->name,
connection_id, src_imv_id, dst_imc_id);
}
else
{
DBG2(DBG_IMC, "IMC %u \"%s\" received message for Connection ID %u "
"from IMV %u", this->id, this->name, connection_id,
src_imv_id);
}
}
else
{
DBG2(DBG_IMC, "IMC %u \"%s\" received message for Connection ID %u",
this->id, this->name, connection_id);
}
*pa_tnc_msg = NULL;
pa_msg = pa_tnc_msg_create_from_data(msg);
switch (pa_msg->process(pa_msg))
{
case SUCCESS:
*pa_tnc_msg = pa_msg;
break;
case VERIFY_ERROR:
/* extract and copy by refence all error attributes */
error_attr_list = linked_list_create();
enumerator = pa_msg->create_error_enumerator(pa_msg);
while (enumerator->enumerate(enumerator, &error_attr))
{
error_attr_list->insert_last(error_attr_list,
error_attr->get_ref(error_attr));
}
enumerator->destroy(enumerator);
src_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? this->id : dst_imc_id;
dst_imv_id = state->has_excl(state) ? src_imv_id : TNC_IMVID_ANY;
result = send_message(this, connection_id, state->has_excl(state),
src_imc_id, dst_imv_id, msg_vid, msg_subtype,
error_attr_list);
error_attr_list->destroy(error_attr_list);
pa_msg->destroy(pa_msg);
return result;
case FAILED:
default:
pa_msg->destroy(pa_msg);
return TNC_RESULT_FATAL;
}
return TNC_RESULT_SUCCESS;
return this->id;
}
METHOD(imc_agent_t, reserve_additional_ids, TNC_Result,
@ -737,8 +547,8 @@ imc_agent_t *imc_agent_create(const char *name,
.delete_state = _delete_state,
.change_state = _change_state,
.get_state = _get_state,
.send_message = _send_message,
.receive_message = _receive_message,
.get_name = _get_name,
.get_id = _get_id,
.reserve_additional_ids = _reserve_additional_ids,
.count_additional_ids = _count_additional_ids,
.create_id_enumerator = _create_id_enumerator,

View File

@ -50,6 +50,44 @@ struct imc_agent_t {
TNC_ConnectionID connection_id,
TNC_RetryReason reason);
/**
* Call when an IMC-IMC message is to be sent
*
* @param imc_id IMC ID assigned by TNCC
* @param connection_id network connection ID assigned by TNCC
* @param msg message to send
* @param msg_len message length in bytes
* @param msg_type message type
* @return TNC result code
*/
TNC_Result (*send_message)(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_MessageType msg_type);
/**
* Call when an IMC-IMC message is to be sent with long message types
*
* @param imc_id IMC ID assigned by TNCC
* @param connection_id network connection ID assigned by TNCC
* @param msg_flags message flags
* @param msg message to send
* @param msg_len message length in bytes
* @param msg_vid message vendor ID
* @param msg_subtype message subtype
* @param dst_imc_id destination IMV ID
* @return TNC result code
*/
TNC_Result (*send_message_long)(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
TNC_BufferReference msg,
TNC_UInt32 msg_len,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 dst_imv_id);
/**
* Bind TNCC functions
*
@ -100,43 +138,18 @@ struct imc_agent_t {
TNC_ConnectionID connection_id, imc_state_t **state);
/**
* Call when an PA-TNC message is to be sent
* Get IMC name
*
* @param connection_id network connection ID assigned by TNCC
* @param excl exclusive flag
* @param src_imc_id IMC ID to be set as source
* @param dst_imv_id IMV ID to be set as destination
* @param msg_vid message vendor ID
* @param msg_subtype message subtype
* @param attr_list list of PA-TNC attributes to send
* @return TNC result code
* return IMC name
*/
TNC_Result (*send_message)(imc_agent_t *this,
TNC_ConnectionID connection_id, bool excl,
TNC_UInt32 src_imc_id, TNC_UInt32 dst_imv_id,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
linked_list_t *attr_list);
const char* (*get_name)(imc_agent_t *this);
/**
* Call when a PA-TNC message was received
* Get base IMC ID
*
* @param state state for current connection
* @param msg received unparsed message
* @param msg_vid message vendorID of the received message
* @param msg_subtype message subtype of the received message
* @param src_imv_id source IMV ID
* @param dst_imc_id destination IMC ID
* @param pa_tnc_message parsed PA-TNC message or NULL if an error occurred
* @return TNC result code
* return base IMC ID
*/
TNC_Result (*receive_message)(imc_agent_t *this,
imc_state_t *state, chunk_t msg,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id,
pa_tnc_msg_t **pa_tnc_msg);
TNC_IMCID (*get_id)(imc_agent_t *this);
/**
* Reserve additional IMC IDs from TNCC

392
src/libimcv/imc/imc_msg.c Normal file
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@ -0,0 +1,392 @@
/*
* Copyright (C) 2012 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 "imc_msg.h"
#include "ietf/ietf_attr.h"
#include "ietf/ietf_attr_assess_result.h"
#include <tncif_names.h>
#include <pen/pen.h>
#include <utils/linked_list.h>
#include <debug.h>
typedef struct private_imc_msg_t private_imc_msg_t;
/**
* Private data of a imc_msg_t object.
*
*/
struct private_imc_msg_t {
/**
* Public imc_msg_t interface.
*/
imc_msg_t public;
/**
* Connection ID
*/
TNC_ConnectionID connection_id;
/**
* source ID
*/
TNC_UInt32 src_id;
/**
* destination ID
*/
TNC_UInt32 dst_id;
/**
* PA-TNC message type
*/
pen_type_t msg_type;
/**
* List of PA-TNC attributes to be sent
*/
linked_list_t *attr_list;
/**
* PA-TNC message
*/
pa_tnc_msg_t *pa_msg;
/**
* Assigned IMC agent
*/
imc_agent_t *agent;
/**
* Assigned IMC state
*/
imc_state_t *state;
};
METHOD(imc_msg_t, get_src_id, TNC_UInt32,
private_imc_msg_t *this)
{
return this->src_id;
}
METHOD(imc_msg_t, get_dst_id, TNC_UInt32,
private_imc_msg_t *this)
{
return this->dst_id;
}
METHOD(imc_msg_t, send_, TNC_Result,
private_imc_msg_t *this, bool excl)
{
pa_tnc_msg_t *pa_tnc_msg;
pa_tnc_attr_t *attr;
TNC_UInt32 msg_flags;
TNC_MessageType msg_type;
bool attr_added;
chunk_t msg;
enumerator_t *enumerator;
TNC_Result result;
while (this->attr_list->get_count(this->attr_list))
{
pa_tnc_msg = pa_tnc_msg_create(this->state->get_max_msg_len(this->state));
attr_added = FALSE;
enumerator = this->attr_list->create_enumerator(this->attr_list);
while (enumerator->enumerate(enumerator, &attr))
{
if (pa_tnc_msg->add_attribute(pa_tnc_msg, attr))
{
attr_added = TRUE;
}
else
{
if (attr_added)
{
break;
}
else
{
DBG1(DBG_IMC, "PA-TNC attribute too large to send, deleted");
attr->destroy(attr);
}
}
this->attr_list->remove_at(this->attr_list, enumerator);
}
enumerator->destroy(enumerator);
/* build and send the PA-TNC message via the IF-IMC interface */
if (!pa_tnc_msg->build(pa_tnc_msg))
{
pa_tnc_msg->destroy(pa_tnc_msg);
return TNC_RESULT_FATAL;
}
msg = pa_tnc_msg->get_encoding(pa_tnc_msg);
DBG3(DBG_IMC, "created PA-TNC message: %B", &msg);
if (this->state->has_long(this->state) && this->agent->send_message_long)
{
excl = excl && this->state->has_excl(this->state) &&
this->dst_id != TNC_IMVID_ANY;
msg_flags = excl ? TNC_MESSAGE_FLAGS_EXCLUSIVE : 0;
result = this->agent->send_message_long(this->src_id,
this->connection_id, msg_flags, msg.ptr, msg.len,
this->msg_type.vendor_id, this->msg_type.type,
this->dst_id);
}
else if (this->agent->send_message)
{
msg_type = (this->msg_type.vendor_id << 8) |
(this->msg_type.type & 0x000000ff);
result = this->agent->send_message(this->src_id, this->connection_id,
msg.ptr, msg.len, msg_type);
}
pa_tnc_msg->destroy(pa_tnc_msg);
if (result != TNC_RESULT_SUCCESS)
{
break;
}
}
return result;
}
METHOD(imc_msg_t, receive, TNC_Result,
private_imc_msg_t *this, bool *fatal_error)
{
enumerator_t *enumerator;
pa_tnc_attr_t *attr;
pen_type_t attr_type;
chunk_t msg;
if (this->state->has_long(this->state))
{
if (this->dst_id != TNC_IMCID_ANY)
{
DBG2(DBG_IMC, "IMC %u \"%s\" received message for Connection ID %u "
"from IMV %u to IMC %u",
this->agent->get_id(this->agent),
this->agent->get_name(this->agent),
this->connection_id, this->src_id, this->dst_id);
}
else
{
DBG2(DBG_IMC, "IMC %u \"%s\" received message for Connection ID %u "
"from IMV %u", this->agent->get_id(this->agent),
this->agent->get_name(this->agent),
this->connection_id, this->src_id);
}
}
else
{
DBG2(DBG_IMC, "IMC %u \"%s\" received message for Connection ID %u",
this->agent->get_id(this->agent),
this->agent->get_name(this->agent),
this->connection_id);
}
msg = this->pa_msg->get_encoding(this->pa_msg);
DBG3(DBG_IMC, "%B", &msg);
switch (this->pa_msg->process(this->pa_msg))
{
case SUCCESS:
break;
case VERIFY_ERROR:
{
imc_msg_t *error_msg;
TNC_Result result;
error_msg = imc_msg_create_as_reply(&this->public);
/* extract and copy by reference all error attributes */
enumerator = this->pa_msg->create_error_enumerator(this->pa_msg);
while (enumerator->enumerate(enumerator, &attr))
{
error_msg->add_attribute(error_msg, attr->get_ref(attr));
}
enumerator->destroy(enumerator);
/*
* send the PA-TNC message containing all error attributes
* with the excl flag set
*/
result = error_msg->send(error_msg, TRUE);
error_msg->destroy(error_msg);
return result;
}
case FAILED:
default:
return TNC_RESULT_FATAL;
}
/* preprocess any received IETF standard error attributes */
*fatal_error = this->pa_msg->process_ietf_std_errors(this->pa_msg);
/* preprocess any received IETF assessment result attribute */
enumerator = this->pa_msg->create_attribute_enumerator(this->pa_msg);
while (enumerator->enumerate(enumerator, &attr))
{
attr_type = attr->get_type(attr);
if (attr_type.vendor_id == PEN_IETF &&
attr_type.type == IETF_ATTR_ASSESSMENT_RESULT)
{
ietf_attr_assess_result_t *attr_cast;
TNC_UInt32 target_imc_id;
TNC_IMV_Evaluation_Result result;
attr_cast = (ietf_attr_assess_result_t*)attr;
result = attr_cast->get_result(attr_cast);
target_imc_id = (this->dst_id != TNC_IMCID_ANY) ?
this->dst_id : this->agent->get_id(this->agent);
this->state->set_result(this->state, target_imc_id, result);
DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
target_imc_id, TNC_IMV_Evaluation_Result_names, result);
}
}
enumerator->destroy(enumerator);
return TNC_RESULT_SUCCESS;
}
METHOD(imc_msg_t, add_attribute, void,
private_imc_msg_t *this, pa_tnc_attr_t *attr)
{
this->attr_list->insert_last(this->attr_list, attr);
}
METHOD(imc_msg_t, create_attribute_enumerator, enumerator_t*,
private_imc_msg_t *this)
{
return this->pa_msg->create_attribute_enumerator(this->pa_msg);
}
METHOD(imc_msg_t, destroy, void,
private_imc_msg_t *this)
{
this->attr_list->destroy_offset(this->attr_list,
offsetof(pa_tnc_attr_t, destroy));
DESTROY_IF(this->pa_msg);
free(this);
}
/**
* See header
*/
imc_msg_t *imc_msg_create(imc_agent_t *agent, imc_state_t *state,
TNC_ConnectionID connection_id,
TNC_UInt32 src_id, TNC_UInt32 dst_id,
pen_type_t msg_type)
{
private_imc_msg_t *this;
INIT(this,
.public = {
.get_src_id = _get_src_id,
.get_dst_id = _get_dst_id,
.send = _send_,
.receive = _receive,
.add_attribute = _add_attribute,
.create_attribute_enumerator = _create_attribute_enumerator,
.destroy = _destroy,
},
.connection_id = connection_id,
.src_id = src_id,
.dst_id = dst_id,
.msg_type = msg_type,
.attr_list = linked_list_create(),
.agent = agent,
.state = state,
);
return &this->public;
}
/**
* See header
*/
imc_msg_t* imc_msg_create_as_reply(imc_msg_t *msg)
{
private_imc_msg_t *in;
TNC_UInt32 src_id;
in = (private_imc_msg_t*)msg;
src_id = (in->dst_id != TNC_IMCID_ANY) ?
in->dst_id : in->agent->get_id(in->agent);
return imc_msg_create(in->agent, in->state, in->connection_id, src_id,
in->src_id, in->msg_type);
}
/**
* See header
*/
imc_msg_t *imc_msg_create_from_data(imc_agent_t *agent, imc_state_t *state,
TNC_ConnectionID connection_id,
TNC_MessageType msg_type,
chunk_t msg)
{
TNC_VendorID msg_vid;
TNC_MessageSubtype msg_subtype;
msg_vid = msg_type >> 8;
msg_subtype = msg_type & TNC_SUBTYPE_ANY;
return imc_msg_create_from_long_data(agent, state, connection_id,
TNC_IMVID_ANY, agent->get_id(agent),
msg_vid, msg_subtype, msg);
}
/**
* See header
*/
imc_msg_t *imc_msg_create_from_long_data(imc_agent_t *agent, imc_state_t *state,
TNC_ConnectionID connection_id,
TNC_UInt32 src_id,
TNC_UInt32 dst_id,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
chunk_t msg)
{
private_imc_msg_t *this;
INIT(this,
.public = {
.get_src_id = _get_src_id,
.get_dst_id = _get_dst_id,
.send = _send_,
.receive = _receive,
.add_attribute = _add_attribute,
.create_attribute_enumerator = _create_attribute_enumerator,
.destroy = _destroy,
},
.connection_id = connection_id,
.src_id = src_id,
.dst_id = dst_id,
.msg_type = pen_type_create(msg_vid, msg_subtype),
.attr_list = linked_list_create(),
.pa_msg = pa_tnc_msg_create_from_data(msg),
.agent = agent,
.state = state,
);
return &this->public;
}

142
src/libimcv/imc/imc_msg.h Normal file
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@ -0,0 +1,142 @@
/*
* Copyright (C) 2012 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 imc_msg imc_msg
* @{ @ingroup libimcv
*/
#ifndef IMC_MSG_H_
#define IMC_MSG_H_
#include <imc/imc_agent.h>
typedef struct imc_msg_t imc_msg_t;
#include <library.h>
/**
* Interface for a PA-TNC message handled by an IMC.
*
*/
struct imc_msg_t {
/**
* Get source ID of PA-TNC message
*
* @return src ID
*/
TNC_UInt32 (*get_src_id)(imc_msg_t *this);
/**
* Get destination ID of PA-TNC message
*
* @return destination ID
*/
TNC_UInt32 (*get_dst_id)(imc_msg_t *this);
/**
* Sends one or multiple PA-TNC messages
*
* @param excl set the excl message flag if supported
* @return TNC result code
*/
TNC_Result (*send)(imc_msg_t *this, bool excl);
/**
* Processes a received PA-TNC message
*
* @param fatal_error TRUE if IMV sent a fatal error message
* @return TNC result code
*/
TNC_Result (*receive)(imc_msg_t *this, bool *fatal_error);
/**
* Add a PA-TNC attribute to the send queue
*
* @param attr PA-TNC attribute to be added
*/
void (*add_attribute)(imc_msg_t *this, pa_tnc_attr_t *attr);
/**
* Enumerator over PA-TNC attributes contained in the PA-TNC message
*
* @return PA-TNC attribute enumerator
*/
enumerator_t* (*create_attribute_enumerator)(imc_msg_t *this);
/**
* Destroys a imc_msg_t object.
*/
void (*destroy)(imc_msg_t *this);
};
/**
* Create a wrapper for an outbound message
*
* @param agent IMC agent responsible for the message
* @param state IMC state for the given connection ID
* @param connection_id connection ID
* @param src_id source IMC ID
* @param dst_id destination IMV ID
* @param msg_type PA-TNC message type
*/
imc_msg_t* imc_msg_create(imc_agent_t *agent, imc_state_t *state,
TNC_ConnectionID connection_id,
TNC_UInt32 src_id, TNC_UInt32 dst_id,
pen_type_t msg_type);
/**
* Create a wrapper for an outbound message based on a received message
*
* @param msg received message the reply is based on
*/
imc_msg_t* imc_msg_create_as_reply(imc_msg_t *msg);
/**
* Create a wrapper around message data received via the legacy IF-IMC interface
*
* @param agent IMC agent responsible for the message
* @param state IMC state for the given connection ID
* @param connection_id connection ID
* @param msg_type PA-TNC message type
* @param msg received PA-TNC message blob
*/
imc_msg_t* imc_msg_create_from_data(imc_agent_t *agent, imc_state_t *state,
TNC_ConnectionID connection_id,
TNC_MessageType msg_type,
chunk_t msg);
/**
* Create a wrapper around message data received via the long IF-IMC interface
*
* @param agent IMC agent responsible for the message
* @param state IMC state for the given connection ID
* @param connection_id connection ID
* @param src_id source IMV ID
* @param dst_id destination IMC ID
* @param msg_flags PA-TNC message flags
* @param msg_vid PA-TNC message vendor ID
* @param msg_subtype PA-TNC subtype
* @param msg received PA-TNC message blob
*/
imc_msg_t* imc_msg_create_from_long_data(imc_agent_t *agent, imc_state_t *state,
TNC_ConnectionID connection_id,
TNC_UInt32 src_id, TNC_UInt32 dst_id,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
chunk_t msg);
#endif /** IMC_MSG_H_ @}*/

View File

@ -16,15 +16,14 @@
#include "imc_os_state.h"
#include <imc/imc_agent.h>
#include <imc/imc_msg.h>
#include <pa_tnc/pa_tnc_msg.h>
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_assess_result.h>
#include <ietf/ietf_attr_attr_request.h>
#include <ietf/ietf_attr_default_pwd_enabled.h>
#include <ietf/ietf_attr_fwd_enabled.h>
#include <ietf/ietf_attr_installed_packages.h>
#include <ietf/ietf_attr_op_status.h>
#include <ietf/ietf_attr_pa_tnc_error.h>
#include <ietf/ietf_attr_product_info.h>
#include <ietf/ietf_attr_string_version.h>
#include <os_info/os_info.h>
@ -120,30 +119,30 @@ TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
/**
* Add IETF Product Information attribute to the send queue
*/
static void add_product_info(linked_list_t *attr_list)
static void add_product_info(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
attr = ietf_attr_product_info_create(PEN_IETF, 0, os->get_name(os));
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
/**
* Add IETF String Version attribute to the send queue
*/
static void add_string_version(linked_list_t *attr_list)
static void add_string_version(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
attr = ietf_attr_string_version_create(os->get_version(os),
chunk_empty, chunk_empty);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
/**
* Add IETF Operational Status attribute to the send queue
*/
static void add_op_status(linked_list_t *attr_list)
static void add_op_status(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
time_t uptime, last_boot;
@ -156,13 +155,13 @@ static void add_op_status(linked_list_t *attr_list)
}
attr = ietf_attr_op_status_create(OP_STATUS_OPERATIONAL,
OP_RESULT_SUCCESSFUL, last_boot);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
/**
* Add IETF Forwarding Enabled attribute to the send queue
*/
static void add_fwd_enabled(linked_list_t *attr_list)
static void add_fwd_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
os_fwd_status_t fwd_status;
@ -171,25 +170,25 @@ static void add_fwd_enabled(linked_list_t *attr_list)
DBG1(DBG_IMC, "IPv4 forwarding status: %N",
os_fwd_status_names, fwd_status);
attr = ietf_attr_fwd_enabled_create(fwd_status);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
/**
* Add IETF Factory Default Password Enabled attribute to the send queue
*/
static void add_default_pwd_enabled(linked_list_t *attr_list)
static void add_default_pwd_enabled(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
DBG1(DBG_IMC, "factory default password: disabled");
attr = ietf_attr_default_pwd_enabled_create(FALSE);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
/**
* Add an IETF Installed Packages attribute to the send queue
*/
static void add_installed_packages(linked_list_t *attr_list)
static void add_installed_packages(imc_msg_t *msg)
{
pa_tnc_attr_t *attr;
ietf_attr_installed_packages_t *attr_cast;
@ -202,7 +201,7 @@ static void add_installed_packages(linked_list_t *attr_list)
attr_cast = (ietf_attr_installed_packages_t*)attr;
attr_cast->add(attr_cast, libc_name, libc_version);
attr_cast->add(attr_cast, selinux_name, selinux_version);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
/**
@ -211,6 +210,8 @@ static void add_installed_packages(linked_list_t *attr_list)
TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
imc_state_t *state;
imc_msg_t *out_msg;
TNC_Result result = TNC_RESULT_SUCCESS;
if (!imc_os)
@ -218,75 +219,48 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_os->get_state(imc_os, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
if (lib->settings->get_bool(lib->settings,
"libimcv.plugins.imc-os.send_info", TRUE))
{
linked_list_t *attr_list;
out_msg = imc_msg_create(imc_os, state, connection_id, imc_id,
TNC_IMVID_ANY, msg_types[0]);
add_product_info(out_msg);
add_string_version(out_msg);
add_op_status(out_msg);
add_fwd_enabled(out_msg);
add_default_pwd_enabled(out_msg);
attr_list = linked_list_create();
add_product_info(attr_list);
add_string_version(attr_list);
add_op_status(attr_list);
add_fwd_enabled(attr_list);
add_default_pwd_enabled(attr_list);
result = imc_os->send_message(imc_os, connection_id, FALSE, 0,
TNC_IMVID_ANY, PEN_IETF, PA_SUBTYPE_IETF_OPERATING_SYSTEM,
attr_list);
attr_list->destroy(attr_list);
/* send PA-TNC message with the excl flag not set */
result = out_msg->send(out_msg, FALSE);
out_msg->destroy(out_msg);
}
return result;
}
static TNC_Result receive_message(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
chunk_t msg,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
static TNC_Result receive_message(imc_msg_t *in_msg)
{
pa_tnc_msg_t *pa_tnc_msg;
imc_msg_t *out_msg;
enumerator_t *enumerator;
pa_tnc_attr_t *attr;
pen_type_t attr_type;
linked_list_t *attr_list;
imc_state_t *state;
enumerator_t *enumerator;
TNC_Result result;
TNC_UInt32 target_imc_id;
bool fatal_error;
bool fatal_error = FALSE;
if (!imc_os)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
/* get current IMC state */
if (!imc_os->get_state(imc_os, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
/* parse received PA-TNC message and automatically handle any errors */
result = imc_os->receive_message(imc_os, state, msg, msg_vid,
msg_subtype, src_imv_id, dst_imc_id, &pa_tnc_msg);
/* no parsed PA-TNC attributes available if an error occurred */
if (!pa_tnc_msg)
/* parse received PA-TNC message and handle local and remote errors */
result = in_msg->receive(in_msg, &fatal_error);
if (result != TNC_RESULT_SUCCESS)
{
return result;
}
target_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? imc_id : dst_imc_id;
/* preprocess any IETF standard error attributes */
fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
out_msg = imc_msg_create_as_reply(in_msg);
/* analyze PA-TNC attributes */
attr_list = linked_list_create();
enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
attr_type = attr->get_type(attr);
@ -313,22 +287,22 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
switch (entry->type)
{
case IETF_ATTR_PRODUCT_INFORMATION:
add_product_info(attr_list);
add_product_info(out_msg);
break;
case IETF_ATTR_STRING_VERSION:
add_string_version(attr_list);
add_string_version(out_msg);
break;
case IETF_ATTR_OPERATIONAL_STATUS:
add_op_status(attr_list);
add_op_status(out_msg);
break;
case IETF_ATTR_FORWARDING_ENABLED:
add_fwd_enabled(attr_list);
add_fwd_enabled(out_msg);
break;
case IETF_ATTR_FACTORY_DEFAULT_PWD_ENABLED:
add_default_pwd_enabled(attr_list);
add_default_pwd_enabled(out_msg);
break;
case IETF_ATTR_INSTALLED_PACKAGES:
add_installed_packages(attr_list);
add_installed_packages(out_msg);
break;
default:
break;
@ -336,35 +310,18 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
}
e->destroy(e);
}
else if (attr_type.type == IETF_ATTR_ASSESSMENT_RESULT)
{
ietf_attr_assess_result_t *attr_cast;
attr_cast = (ietf_attr_assess_result_t*)attr;
state->set_result(state, target_imc_id,
attr_cast->get_result(attr_cast));
}
}
enumerator->destroy(enumerator);
pa_tnc_msg->destroy(pa_tnc_msg);
if (fatal_error)
{
attr_list->destroy_offset(attr_list, offsetof(pa_tnc_attr_t, destroy));
return TNC_RESULT_FATAL;
}
if (attr_list->get_count(attr_list))
{
result = imc_os->send_message(imc_os, connection_id, TRUE, imc_id,
src_imv_id, PEN_IETF, PA_SUBTYPE_IETF_OPERATING_SYSTEM,
attr_list);
result = TNC_RESULT_FATAL;
}
else
{
result = TNC_RESULT_SUCCESS;
result = out_msg->send(out_msg, TRUE);
}
attr_list->destroy(attr_list);
out_msg->destroy(out_msg);
return result;
}
@ -379,14 +336,25 @@ TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
TNC_UInt32 msg_len,
TNC_MessageType msg_type)
{
TNC_VendorID msg_vid;
TNC_MessageSubtype msg_subtype;
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
msg_vid = msg_type >> 8;
msg_subtype = msg_type & TNC_SUBTYPE_ANY;
if (!imc_os)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_os->get_state(imc_os, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_data(imc_os, state, connection_id, msg_type,
chunk_create(msg, msg_len));
result = receive_message(in_msg);
in_msg->destroy(in_msg);
return receive_message(imc_id, connection_id, 0, chunk_create(msg, msg_len),
msg_vid, msg_subtype, 0, TNC_IMCID_ANY);
return result;
}
/**
@ -402,9 +370,26 @@ TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
{
return receive_message(imc_id, connection_id, msg_flags,
chunk_create(msg, msg_len), msg_vid, msg_subtype,
src_imv_id, dst_imc_id);
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_os)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_os->get_state(imc_os, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_long_data(imc_os, state, connection_id,
src_imv_id, dst_imc_id,msg_vid, msg_subtype,
chunk_create(msg, msg_len));
result =receive_message(in_msg);
in_msg->destroy(in_msg);
return result;
}
/**

View File

@ -109,8 +109,6 @@ METHOD(imc_state_t, set_result, void,
private_imc_os_state_t *this, TNC_IMCID id,
TNC_IMV_Evaluation_Result result)
{
DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
id, TNC_IMV_Evaluation_Result_names, result);
this->result = result;
}

View File

@ -16,11 +16,10 @@
#include "imc_scanner_state.h"
#include <imc/imc_agent.h>
#include <imc/imc_msg.h>
#include <pa_tnc/pa_tnc_msg.h>
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_pa_tnc_error.h>
#include <ietf/ietf_attr_port_filter.h>
#include <ietf/ietf_attr_assess_result.h>
#include <tncif_pa_subtypes.h>
@ -229,12 +228,10 @@ end:
return success;
}
static TNC_Result send_message(TNC_ConnectionID connection_id)
static TNC_Result send_message(imc_msg_t *out_msg)
{
linked_list_t *attr_list;
pa_tnc_attr_t *attr;
ietf_attr_port_filter_t *attr_port_filter;
TNC_Result result;
attr = ietf_attr_port_filter_create();
attr->set_noskip_flag(attr, TRUE);
@ -244,14 +241,10 @@ static TNC_Result send_message(TNC_ConnectionID connection_id)
attr->destroy(attr);
return TNC_RESULT_FATAL;
}
attr_list = linked_list_create();
attr_list->insert_last(attr_list, attr);
result = imc_scanner->send_message(imc_scanner, connection_id, FALSE, 0,
TNC_IMVID_ANY, PEN_ITA, PA_SUBTYPE_ITA_SCANNER,
attr_list);
attr_list->destroy(attr_list);
out_msg->add_attribute(out_msg, attr);
return result;
/* send PA-TNC message with the excl flag not set */
return out_msg->send(out_msg, FALSE);
}
/**
@ -260,85 +253,39 @@ static TNC_Result send_message(TNC_ConnectionID connection_id)
TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
if (!imc_scanner)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
return send_message(connection_id);
}
static TNC_Result receive_message(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
chunk_t msg,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
{
pa_tnc_msg_t *pa_tnc_msg;
pa_tnc_attr_t *attr;
pen_type_t attr_type;
imc_state_t *state;
enumerator_t *enumerator;
imc_msg_t *out_msg;
TNC_Result result;
TNC_UInt32 target_imc_id;
bool fatal_error;
if (!imc_scanner)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
/* get current IMC state */
if (!imc_scanner->get_state(imc_scanner, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
out_msg = imc_msg_create(imc_scanner, state, connection_id, imc_id,
TNC_IMVID_ANY, msg_types[0]);
result = send_message(out_msg);
out_msg->destroy(out_msg);
/* parse received PA-TNC message and automatically handle any errors */
result = imc_scanner->receive_message(imc_scanner, state, msg, msg_vid,
msg_subtype, src_imv_id, dst_imc_id, &pa_tnc_msg);
return result;
}
/* no parsed PA-TNC attributes available if an error occurred */
if (!pa_tnc_msg)
static TNC_Result receive_message(imc_msg_t *in_msg)
{
TNC_Result result;
bool fatal_error = FALSE;
/* parse received PA-TNC message and handle local and remote errors */
result = in_msg->receive(in_msg, &fatal_error);
if (result != TNC_RESULT_SUCCESS)
{
return result;
}
target_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? imc_id : dst_imc_id;
/* preprocess any IETF standard error attributes */
fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
/* analyze PA-TNC attributes */
enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
while (enumerator->enumerate(enumerator, &attr))
{
attr_type = attr->get_type(attr);
if (attr_type.vendor_id == PEN_IETF &&
attr_type.type == IETF_ATTR_ASSESSMENT_RESULT)
{
ietf_attr_assess_result_t *ietf_attr;
ietf_attr = (ietf_attr_assess_result_t*)attr;
state->set_result(state, target_imc_id,
ietf_attr->get_result(ietf_attr));
}
}
enumerator->destroy(enumerator);
pa_tnc_msg->destroy(pa_tnc_msg);
if (fatal_error)
{
return TNC_RESULT_FATAL;
}
/* if no assessment result is known then repeat the measurement */
return state->get_result(state, target_imc_id, NULL) ?
TNC_RESULT_SUCCESS : send_message(connection_id);
return fatal_error ? TNC_RESULT_FATAL : TNC_RESULT_SUCCESS;
}
/**
@ -351,14 +298,26 @@ TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
TNC_UInt32 msg_len,
TNC_MessageType msg_type)
{
TNC_VendorID msg_vid;
TNC_MessageSubtype msg_subtype;
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
msg_vid = msg_type >> 8;
msg_subtype = msg_type & TNC_SUBTYPE_ANY;
if (!imc_scanner)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_scanner->get_state(imc_scanner, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
return receive_message(imc_id, connection_id, 0, chunk_create(msg, msg_len),
msg_vid, msg_subtype, 0, TNC_IMCID_ANY);
in_msg = imc_msg_create_from_data(imc_scanner, state, connection_id,
msg_type, chunk_create(msg, msg_len));
result = receive_message(in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
@ -374,9 +333,26 @@ TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
{
return receive_message(imc_id, connection_id, msg_flags,
chunk_create(msg, msg_len), msg_vid, msg_subtype,
src_imv_id, dst_imc_id);
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_scanner)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_scanner->get_state(imc_scanner, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_long_data(imc_scanner, state, connection_id,
src_imv_id, dst_imc_id, msg_vid, msg_subtype,
chunk_create(msg, msg_len));
result =receive_message(in_msg);
in_msg->destroy(in_msg);
return result;
}
/**

View File

@ -109,8 +109,6 @@ METHOD(imc_state_t, set_result, void,
private_imc_scanner_state_t *this, TNC_IMCID id,
TNC_IMV_Evaluation_Result result)
{
DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
id, TNC_IMV_Evaluation_Result_names, result);
this->result = result;
}

View File

@ -16,10 +16,9 @@
#include "imc_test_state.h"
#include <imc/imc_agent.h>
#include <imc/imc_msg.h>
#include <pa_tnc/pa_tnc_msg.h>
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_pa_tnc_error.h>
#include <ietf/ietf_attr_assess_result.h>
#include <ita/ita_attr.h>
#include <ita/ita_attr_command.h>
#include <ita/ita_attr_dummy.h>
@ -182,37 +181,24 @@ TNC_Result TNC_IMC_NotifyConnectionChange(TNC_IMCID imc_id,
}
}
static TNC_Result send_message(imc_state_t *state, TNC_UInt32 src_imc_id,
TNC_UInt32 dst_imv_id)
static TNC_Result send_message(imc_state_t *state, imc_msg_t *out_msg)
{
imc_test_state_t *test_state;
linked_list_t *attr_list;
pa_tnc_attr_t *attr;
bool excl;
TNC_ConnectionID connection_id;
TNC_Result result;
attr_list = linked_list_create();
connection_id = state->get_connection_id(state);
test_state = (imc_test_state_t*)state;
if (test_state->get_dummy_size(test_state))
{
attr = ita_attr_dummy_create(test_state->get_dummy_size(test_state));
attr->set_noskip_flag(attr, TRUE);
attr_list->insert_last(attr_list, attr);
out_msg->add_attribute(out_msg, attr);
}
attr = ita_attr_command_create(test_state->get_command(test_state));
attr->set_noskip_flag(attr, TRUE);
attr_list->insert_last(attr_list, attr);
out_msg->add_attribute(out_msg, attr);
excl = dst_imv_id != TNC_IMVID_ANY;
result = imc_test->send_message(imc_test, connection_id, excl, src_imc_id,
dst_imv_id, PEN_ITA, PA_SUBTYPE_ITA_TEST,
attr_list);
attr_list->destroy(attr_list);
return result;
/* send PA-TNC message with the excl flag set */
return out_msg->send(out_msg, TRUE);
}
/**
@ -222,6 +208,7 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
TNC_ConnectionID connection_id)
{
imc_state_t *state;
imc_msg_t *out_msg;
enumerator_t *enumerator;
void *pointer;
TNC_UInt32 additional_id;
@ -232,15 +219,16 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
/* get current IMC state */
if (!imc_test->get_state(imc_test, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
/* send PA message for primary IMC ID */
result = send_message(state, imc_id, TNC_IMVID_ANY);
out_msg = imc_msg_create(imc_test, state, connection_id, imc_id,
TNC_IMVID_ANY, msg_types[0]);
result = send_message(state, out_msg);
out_msg->destroy(out_msg);
/* Exit if there are no additional IMC IDs */
if (!imc_test->count_additional_ids(imc_test))
@ -263,93 +251,60 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
{
/* interpret pointer as scalar value */
additional_id = (TNC_UInt32)pointer;
result = send_message(state, additional_id, TNC_IMVID_ANY);
out_msg = imc_msg_create(imc_test, state, connection_id, additional_id,
TNC_IMVID_ANY, msg_types[0]);
result = send_message(state, out_msg);
out_msg->destroy(out_msg);
}
enumerator->destroy(enumerator);
return result;
}
static TNC_Result receive_message(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
chunk_t msg,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg)
{
pa_tnc_msg_t *pa_tnc_msg;
imc_msg_t *out_msg;
enumerator_t *enumerator;
pa_tnc_attr_t *attr;
pen_type_t attr_type;
imc_state_t *state;
enumerator_t *enumerator;
TNC_Result result;
TNC_UInt32 target_imc_id;
bool fatal_error = FALSE;
if (!imc_test)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
/* get current IMC state */
if (!imc_test->get_state(imc_test, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
/* parse received PA-TNC message and automatically handle any errors */
result = imc_test->receive_message(imc_test, state, msg, msg_vid,
msg_subtype, src_imv_id, dst_imc_id, &pa_tnc_msg);
/* no parsed PA-TNC attributes available if an error occurred */
if (!pa_tnc_msg)
/* parse received PA-TNC message and handle local and remote errors */
result = in_msg->receive(in_msg, &fatal_error);
if (result != TNC_RESULT_SUCCESS)
{
return result;
}
target_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? imc_id : dst_imc_id;
/* preprocess any IETF standard error attributes */
fatal_error = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg);
/* analyze PA-TNC attributes */
enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
attr_type = attr->get_type(attr);
if (attr_type.vendor_id == PEN_IETF)
if (attr_type.vendor_id != PEN_ITA)
{
ietf_attr_assess_result_t *ietf_attr;
ietf_attr = (ietf_attr_assess_result_t*)attr;
state->set_result(state, target_imc_id,
ietf_attr->get_result(ietf_attr));
continue;
}
else if (attr_type.vendor_id == PEN_ITA)
if (attr_type.type == ITA_ATTR_COMMAND)
{
if (attr_type.type == ITA_ATTR_COMMAND)
{
ita_attr_command_t *ita_attr;
ita_attr_command_t *ita_attr;
ita_attr = (ita_attr_command_t*)attr;
DBG1(DBG_IMC, "received command '%s'",
ita_attr->get_command(ita_attr));
}
else if (attr_type.type == ITA_ATTR_DUMMY)
{
ita_attr_dummy_t *ita_attr;
ita_attr = (ita_attr_command_t*)attr;
DBG1(DBG_IMC, "received command '%s'",
ita_attr->get_command(ita_attr));
}
else if (attr_type.type == ITA_ATTR_DUMMY)
{
ita_attr_dummy_t *ita_attr;
ita_attr = (ita_attr_dummy_t*)attr;
DBG1(DBG_IMC, "received dummy attribute value (%d bytes)",
ita_attr->get_size(ita_attr));
}
ita_attr = (ita_attr_dummy_t*)attr;
DBG1(DBG_IMC, "received dummy attribute value (%d bytes)",
ita_attr->get_size(ita_attr));
}
}
enumerator->destroy(enumerator);
pa_tnc_msg->destroy(pa_tnc_msg);
if (fatal_error)
{
@ -357,8 +312,15 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
}
/* if no assessment result is known then repeat the measurement */
return state->get_result(state, target_imc_id, NULL) ?
TNC_RESULT_SUCCESS : send_message(state, dst_imc_id, src_imv_id);
if (state->get_result(state, in_msg->get_dst_id(in_msg), NULL))
{
return TNC_RESULT_SUCCESS;
}
out_msg = imc_msg_create_as_reply(in_msg);
result = send_message(state, out_msg);
out_msg->destroy(out_msg);
return result;
}
/**
@ -370,14 +332,26 @@ TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
TNC_UInt32 msg_len,
TNC_MessageType msg_type)
{
TNC_VendorID msg_vid;
TNC_MessageSubtype msg_subtype;
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
msg_vid = msg_type >> 8;
msg_subtype = msg_type & TNC_SUBTYPE_ANY;
if (!imc_test)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_test->get_state(imc_test, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
return receive_message(imc_id, connection_id, 0, chunk_create(msg, msg_len),
msg_vid, msg_subtype, 0, TNC_IMCID_ANY);
in_msg = imc_msg_create_from_data(imc_test, state, connection_id, msg_type,
chunk_create(msg, msg_len));
result = receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
@ -393,9 +367,26 @@ TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
{
return receive_message(imc_id, connection_id, msg_flags,
chunk_create(msg, msg_len), msg_vid, msg_subtype,
src_imv_id, dst_imc_id);
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_test)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_test->get_state(imc_test, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_long_data(imc_test, state, connection_id,
src_imv_id, dst_imc_id, msg_vid, msg_subtype,
chunk_create(msg, msg_len));
result =receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**

View File

@ -144,9 +144,6 @@ METHOD(imc_state_t, set_result, void,
entry_t *entry;
bool found = FALSE;
DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
id, TNC_IMV_Evaluation_Result_names, result);
enumerator = this->results->create_enumerator(this->results);
while (enumerator->enumerate(enumerator, &entry))
{

View File

@ -17,6 +17,7 @@
#include "imc_attestation_process.h"
#include <imc/imc_agent.h>
#include <imc/imc_msg.h>
#include <pa_tnc/pa_tnc_msg.h>
#include <ietf/ietf_attr.h>
#include <ietf/ietf_attr_pa_tnc_error.h>
@ -147,57 +148,26 @@ TNC_Result TNC_IMC_BeginHandshake(TNC_IMCID imc_id,
return TNC_RESULT_SUCCESS;
}
static TNC_Result receive_message(TNC_IMCID imc_id,
TNC_ConnectionID connection_id,
TNC_UInt32 msg_flags,
chunk_t msg,
TNC_VendorID msg_vid,
TNC_MessageSubtype msg_subtype,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
static TNC_Result receive_message(imc_state_t *state, imc_msg_t *in_msg)
{
pa_tnc_msg_t *pa_tnc_msg;
pa_tnc_attr_t *attr;
pen_type_t type;
linked_list_t *attr_list;
imc_state_t *state;
imc_msg_t *out_msg;
imc_attestation_state_t *attestation_state;
enumerator_t *enumerator;
pa_tnc_attr_t *attr;
pen_type_t type;
TNC_Result result;
TNC_UInt32 target_imc_id;
bool fatal_error = FALSE;
if (!imc_attestation)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
/* get current IMC state */
if (!imc_attestation->get_state(imc_attestation, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
attestation_state = (imc_attestation_state_t*)state;
/* parse received PA-TNC message and automatically handle any errors */
result = imc_attestation->receive_message(imc_attestation, state, msg,
msg_vid, msg_subtype, src_imv_id, dst_imc_id, &pa_tnc_msg);
/* no parsed PA-TNC attributes available if an error occurred */
if (!pa_tnc_msg)
/* parse received PA-TNC message and handle local and remote errors */
result = in_msg->receive(in_msg, &fatal_error);
if (result != TNC_RESULT_SUCCESS)
{
return result;
}
target_imc_id = (dst_imc_id == TNC_IMCID_ANY) ? imc_id : dst_imc_id;
/* preprocess any IETF standard error attributes */
result = pa_tnc_msg->process_ietf_std_errors(pa_tnc_msg) ?
TNC_RESULT_FATAL : TNC_RESULT_SUCCESS;
attr_list = linked_list_create();
out_msg = imc_msg_create_as_reply(in_msg);
/* analyze PA-TNC attributes */
enumerator = pa_tnc_msg->create_attribute_enumerator(pa_tnc_msg);
enumerator = in_msg->create_attribute_enumerator(in_msg);
while (enumerator->enumerate(enumerator, &attr))
{
type = attr->get_type(attr);
@ -224,18 +194,12 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
result = TNC_RESULT_FATAL;
}
}
else if (type.type == IETF_ATTR_ASSESSMENT_RESULT)
{
ietf_attr_assess_result_t *ietf_attr;
ietf_attr = (ietf_attr_assess_result_t*)attr;
state->set_result(state, target_imc_id,
ietf_attr->get_result(ietf_attr));
}
}
else if (type.vendor_id == PEN_TCG)
{
if (!imc_attestation_process(attr, attr_list, attestation_state,
attestation_state = (imc_attestation_state_t*)state;
if (!imc_attestation_process(attr, out_msg, attestation_state,
supported_algorithms, supported_dh_groups))
{
result = TNC_RESULT_FATAL;
@ -244,15 +208,13 @@ static TNC_Result receive_message(TNC_IMCID imc_id,
}
}
enumerator->destroy(enumerator);
pa_tnc_msg->destroy(pa_tnc_msg);
if (result == TNC_RESULT_SUCCESS && attr_list->get_count(attr_list))
if (result == TNC_RESULT_SUCCESS)
{
result = imc_attestation->send_message(imc_attestation, connection_id,
FALSE, 0, TNC_IMVID_ANY, PEN_TCG, PA_SUBTYPE_TCG_PTS,
attr_list);
/* send PA-TNC message with the excl flag set */
result = out_msg->send(out_msg, TRUE);
}
attr_list->destroy(attr_list);
out_msg->destroy(out_msg);
return result;
}
@ -266,14 +228,26 @@ TNC_Result TNC_IMC_ReceiveMessage(TNC_IMCID imc_id,
TNC_UInt32 msg_len,
TNC_MessageType msg_type)
{
TNC_VendorID msg_vid;
TNC_MessageSubtype msg_subtype;
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
msg_vid = msg_type >> 8;
msg_subtype = msg_type & TNC_SUBTYPE_ANY;
if (!imc_attestation)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_attestation->get_state(imc_attestation, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
return receive_message(imc_id, connection_id, 0, chunk_create(msg, msg_len),
msg_vid, msg_subtype, 0, TNC_IMCID_ANY);
in_msg = imc_msg_create_from_data(imc_attestation, state, connection_id,
msg_type, chunk_create(msg, msg_len));
result = receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**
@ -289,9 +263,26 @@ TNC_Result TNC_IMC_ReceiveMessageLong(TNC_IMCID imc_id,
TNC_UInt32 src_imv_id,
TNC_UInt32 dst_imc_id)
{
return receive_message(imc_id, connection_id, msg_flags,
chunk_create(msg, msg_len), msg_vid, msg_subtype,
src_imv_id, dst_imc_id);
imc_state_t *state;
imc_msg_t *in_msg;
TNC_Result result;
if (!imc_attestation)
{
DBG1(DBG_IMC, "IMC \"%s\" has not been initialized", imc_name);
return TNC_RESULT_NOT_INITIALIZED;
}
if (!imc_attestation->get_state(imc_attestation, connection_id, &state))
{
return TNC_RESULT_FATAL;
}
in_msg = imc_msg_create_from_long_data(imc_attestation, state, connection_id,
src_imv_id, dst_imc_id, msg_vid, msg_subtype,
chunk_create(msg, msg_len));
result =receive_message(state, in_msg);
in_msg->destroy(in_msg);
return result;
}
/**

View File

@ -48,7 +48,7 @@
#define DEFAULT_NONCE_LEN 20
bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
bool imc_attestation_process(pa_tnc_attr_t *attr, imc_msg_t *msg,
imc_attestation_state_t *attestation_state,
pts_meas_algorithms_t supported_algorithms,
pts_dh_group_t supported_dh_groups)
@ -76,7 +76,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
/* Send PTS Protocol Capabilities attribute */
attr = tcg_pts_attr_proto_caps_create(imc_caps & imv_caps, FALSE);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_MEAS_ALGO:
@ -91,14 +91,14 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
if (selected_algorithm == PTS_MEAS_ALGO_NONE)
{
attr = pts_hash_alg_error_create(supported_algorithms);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
/* Send Measurement Algorithm Selection attribute */
pts->set_meas_algorithm(pts, selected_algorithm);
attr = tcg_pts_attr_meas_algo_create(selected_algorithm, TRUE);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_DH_NONCE_PARAMS_REQ:
@ -118,7 +118,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
(min_nonce_len > 0 && nonce_len < min_nonce_len))
{
attr = pts_dh_nonce_error_create(nonce_len, PTS_MAX_NONCE_LEN);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
@ -128,7 +128,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
if (selected_dh_group == PTS_DH_GROUP_NONE)
{
attr = pts_dh_group_error_create(supported_dh_groups);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
@ -142,7 +142,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
/* Send DH Nonce Parameters Response attribute */
attr = tcg_pts_attr_dh_nonce_params_resp_create(selected_dh_group,
supported_algorithms, responder_nonce, responder_value);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_DH_NONCE_FINISH:
@ -190,13 +190,13 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
{
attr_info = attr->get_value(attr);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
/* Send TPM Version Info attribute */
attr = tcg_pts_attr_tpm_version_info_create(tpm_version_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_GET_AIK:
@ -212,7 +212,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
/* Send AIK attribute */
attr = tcg_pts_attr_aik_create(aik);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_REQ_FILE_MEAS:
@ -237,7 +237,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
{
error_code = pen_type_create(PEN_TCG, pts_error);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
else if (!valid_path)
@ -250,7 +250,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
error_code = pen_type_create(PEN_TCG,
TCG_PTS_INVALID_DELIMITER);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
@ -268,7 +268,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
}
attr = tcg_pts_attr_file_meas_create(measurements);
attr->set_noskip_flag(attr, TRUE);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_REQ_FILE_META:
@ -291,7 +291,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
{
error_code = pen_type_create(PEN_TCG, pts_error);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
else if (!valid_path)
@ -303,7 +303,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
error_code = pen_type_create(PEN_TCG,
TCG_PTS_INVALID_DELIMITER);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
/* Get File Metadata and send them to PTS-IMV */
@ -319,8 +319,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
}
attr = tcg_pts_attr_unix_file_meta_create(metadata);
attr->set_noskip_flag(attr, TRUE);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
case TCG_PTS_REQ_FUNC_COMP_EVID:
@ -353,7 +352,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
error_code = pen_type_create(PEN_TCG,
TCG_PTS_UNABLE_DET_TTC);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
if (flags & PTS_REQ_FUNC_COMP_EVID_VER &&
@ -362,7 +361,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
error_code = pen_type_create(PEN_TCG,
TCG_PTS_UNABLE_LOCAL_VAL);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
if (flags & PTS_REQ_FUNC_COMP_EVID_CURR &&
@ -371,7 +370,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
error_code = pen_type_create(PEN_TCG,
TCG_PTS_UNABLE_CUR_EVID);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
if (flags & PTS_REQ_FUNC_COMP_EVID_PCR &&
@ -380,7 +379,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
error_code = pen_type_create(PEN_TCG,
TCG_PTS_UNABLE_DET_PCR);
attr = ietf_attr_pa_tnc_error_create(error_code, attr_info);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
if (depth > 0)
@ -425,7 +424,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
while (attestation_state->next_evidence(attestation_state, &evid))
{
attr = tcg_pts_attr_simple_comp_evid_create(evid);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
}
use_quote2 = lib->settings->get_bool(lib->settings,
@ -443,7 +442,7 @@ bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
attr = tcg_pts_attr_simple_evid_final_create(flags,
comp_hash_algorithm, pcr_composite, quote_sig);
attr_list->insert_last(attr_list, attr);
msg->add_attribute(msg, attr);
break;
}
/* TODO: Not implemented yet */

View File

@ -26,6 +26,7 @@
#include <library.h>
#include <imc/imc_msg.h>
#include <pa_tnc/pa_tnc_attr.h>
#include <pts/pts_dh_group.h>
@ -35,13 +36,13 @@
* Process a TCG PTS attribute
*
* @param attr PA-TNC attribute to be processed
* @param attr_list list with PA-TNC error attributes
* @param msg outbound PA-TNC message to be assembled
* @param attestation_state attestation state of a given connection
* @param supported_algorithms supported PTS measurement algorithms
* @param supported_dh_groups supported DH groups
* @return TRUE if successful
*/
bool imc_attestation_process(pa_tnc_attr_t *attr, linked_list_t *attr_list,
bool imc_attestation_process(pa_tnc_attr_t *attr, imc_msg_t *msg,
imc_attestation_state_t *attestation_state,
pts_meas_algorithms_t supported_algorithms,
pts_dh_group_t supported_dh_groups);

View File

@ -129,8 +129,6 @@ METHOD(imc_state_t, set_result, void,
private_imc_attestation_state_t *this, TNC_IMCID id,
TNC_IMV_Evaluation_Result result)
{
DBG1(DBG_IMC, "set assessment result for IMC %u to '%N'",
id, TNC_IMV_Evaluation_Result_names, result);
this->result = result;
}