Attestion IMV provides recommendation only once

src/libpts/plugins/imv_attestation/imv_attestation_agent.c

@@ -304,6 +304,12 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
 	session = state->get_session(state);
 	imv_id = this->agent->get_id(this->agent);
 
+	/* exit if a recommendation has already been provided */
+	if (state->get_action_flags(state) & IMV_ATTESTATION_FLAG_REC)
+	{
+		return TNC_RESULT_SUCCESS;
+	}
+
 	/* send an IETF attribute request if no platform info was received */
 	if (!platform_info &&
 		!(state->get_action_flags(state) & IMV_ATTESTATION_FLAG_ATTR_REQ))
@@ -443,6 +449,8 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
 								TNC_IMV_EVALUATION_RESULT_ERROR);
 		result = out_msg->send_assessment(out_msg);
 		out_msg->destroy(out_msg);
+		state->set_action_flags(state, IMV_ATTESTATION_FLAG_REC);
+
 		if (result != TNC_RESULT_SUCCESS)
 		{
 			return result;
@@ -458,6 +466,8 @@ METHOD(imv_agent_if_t, batch_ending, TNC_Result,
 	{
 		result = out_msg->send_assessment(out_msg);
 		out_msg->destroy(out_msg);
+		state->set_action_flags(state, IMV_ATTESTATION_FLAG_REC);
+
 		if (result != TNC_RESULT_SUCCESS)
 		{
 			return result;

src/libpts/plugins/imv_attestation/imv_attestation_state.h

@@ -41,7 +41,8 @@ typedef enum imv_meas_error_t imv_meas_error_t;
 enum imv_attestation_flag_t {
 	IMV_ATTESTATION_FLAG_ATTR_REQ =  (1<<0),
 	IMV_ATTESTATION_FLAG_ALGO =      (1<<1),
-	IMV_ATTESTATION_FLAG_FILE_MEAS = (1<<2)
+	IMV_ATTESTATION_FLAG_FILE_MEAS = (1<<2),
+	IMV_ATTESTATION_FLAG_REC =       (1<<3)
 };
 
 /**