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bacnet_stack/bacnet-stack/demo/handler/h_rpm.c
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/**************************************************************************
*
* Copyright (C) 2007 Steve Karg <skarg@users.sourceforge.net>
* Inspired by John Stachler.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*********************************************************************/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "config.h"
#include "txbuf.h"
#include "bacdef.h"
#include "bacdcode.h"
#include "apdu.h"
#include "npdu.h"
#include "abort.h"
#include "rpm.h"
#include "handlers.h"
/* demo objects */
#include "device.h"
#include "ai.h"
#include "ao.h"
#include "av.h"
#include "bi.h"
#include "bo.h"
#include "bv.h"
#include "lc.h"
#include "lsp.h"
#include "mso.h"
#if BACFILE
#include "bacfile.h"
#endif
static uint8_t Temp_Buf[MAX_APDU] = { 0 };
static uint8_t Application_Buf[MAX_APDU] = { 0 };
struct property_list_t
{
const int *pList;
unsigned count;
};
struct special_property_list_t
{
struct property_list_t Required;
struct property_list_t Optional;
struct property_list_t Proprietary;
};
static unsigned property_list_count(const int *pList)
{
unsigned property_count = 0;
if (pList) {
while (*pList != -1) {
property_count++;
}
}
return property_count;
}
/* for a given object type, returns the special property list */
static void RPM_Property_List(
BACNET_OBJECT_TYPE object_type,
struct special_property_list_t *pPropertyList)
{
pPropertyList->Required.pList = NULL;
pPropertyList->Optional.pList = NULL;
pPropertyList->Proprietary.pList = NULL;
switch (object_type) {
case OBJECT_ANALOG_INPUT:
Analog_Input_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_ANALOG_OUTPUT:
Analog_Output_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_ANALOG_VALUE:
Analog_Value_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_BINARY_INPUT:
Binary_Input_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_BINARY_OUTPUT:
Binary_Output_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_BINARY_VALUE:
Binary_Value_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_LIFE_SAFETY_POINT:
Life_Safety_Point_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_LOAD_CONTROL:
Load_Control_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
case OBJECT_MULTI_STATE_OUTPUT:
break;
#if BACFILE
case OBJECT_FILE:
BACfile_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
#endif
case OBJECT_DEVICE:
Device_Property_Lists(
&pPropertyList->Required.pList,
&pPropertyList->Optional.pList,
&pPropertyList->Proprietary.pList);
break;
default:
break;
}
/* fill the count */
pPropertyList->Required.count =
property_list_count(pPropertyList->Required.pList);
pPropertyList->Optional.count =
property_list_count(pPropertyList->Optional.pList);
pPropertyList->Proprietary.count =
property_list_count(pPropertyList->Proprietary.pList);
return;
}
static int RPM_Object_Property(
struct special_property_list_t *pPropertyList,
BACNET_PROPERTY_ID special_property,
unsigned index)
{
int property = -1; /* return value */
unsigned required, optional, proprietary;
required = pPropertyList->Required.count;
optional = pPropertyList->Optional.count;
proprietary = pPropertyList->Proprietary.count;
if (special_property == PROP_ALL) {
if (index < required) {
property = pPropertyList->Required.pList[index];
} else if (index < (required + optional)) {
property = pPropertyList->Optional.pList[index];
} else if (index < (required + optional + proprietary)) {
property = pPropertyList->Proprietary.pList[index];
}
} else if (special_property == PROP_REQUIRED) {
if (index < required) {
property = pPropertyList->Required.pList[index];
}
} else if (special_property == PROP_OPTIONAL) {
if (index < optional) {
property = pPropertyList->Optional.pList[index];
}
}
return property;
}
static unsigned RPM_Object_Property_Count(
struct special_property_list_t *pPropertyList,
BACNET_PROPERTY_ID special_property)
{
unsigned count = 0; /* return value */
if (special_property == PROP_ALL) {
count = pPropertyList->Required.count +
pPropertyList->Optional.count +
pPropertyList->Proprietary.count;
} else if (special_property == PROP_REQUIRED) {
count = pPropertyList->Required.count;
} else if (special_property == PROP_OPTIONAL) {
count = pPropertyList->Optional.count;
}
return count;
}
/* copy len bytes from src to offset of dest if there is enough space. */
int apdu_copy(uint8_t *dest, uint8_t *src, int offset, int len, int max)
{
int i;
int copy_len = 0;
if (len <= (max-offset)) {
for (i = 0; i < len; i++) {
dest[offset+i] = src[i];
copy_len++;
}
}
return copy_len;
}
/* Encodes the property APDU and returns the length,
or sets the error, and returns -1 */
int Encode_Property_APDU(
uint8_t * apdu,
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance,
BACNET_PROPERTY_ID property,
int32_t array_index,
BACNET_ERROR_CLASS * error_class,
BACNET_ERROR_CODE * error_code)
{
int apdu_len = -1;
switch(object_type) {
case OBJECT_DEVICE:
if ((object_instance == Device_Object_Instance_Number()) ||
(object_instance == BACNET_MAX_INSTANCE)) {
apdu_len = Device_Encode_Property_APDU(
&apdu[0],
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_ANALOG_INPUT:
if (Analog_Input_Valid_Instance(object_instance)) {
apdu_len = Analog_Input_Encode_Property_APDU(
&apdu[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_ANALOG_OUTPUT:
if (!Analog_Output_Valid_Instance(object_instance)) {
apdu_len = Analog_Output_Encode_Property_APDU(
&apdu[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_ANALOG_VALUE:
if (Analog_Value_Valid_Instance(object_instance)) {
apdu_len = Analog_Value_Encode_Property_APDU(&Temp_Buf[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_BINARY_INPUT:
if (Binary_Input_Valid_Instance(object_instance)) {
apdu_len = Binary_Input_Encode_Property_APDU(
&apdu[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_BINARY_OUTPUT:
if (Binary_Output_Valid_Instance(object_instance)) {
apdu_len = Binary_Output_Encode_Property_APDU(
&apdu[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_BINARY_VALUE:
if (Binary_Value_Valid_Instance(object_instance)) {
apdu_len = Binary_Value_Encode_Property_APDU(&Temp_Buf[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_LIFE_SAFETY_POINT:
if (Life_Safety_Point_Valid_Instance(object_instance)) {
apdu_len = Life_Safety_Point_Encode_Property_APDU(&Temp_Buf[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_LOAD_CONTROL:
if (Load_Control_Valid_Instance(object_instance)) {
apdu_len = Load_Control_Encode_Property_APDU(&Temp_Buf[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
case OBJECT_MULTI_STATE_OUTPUT:
if (Multistate_Output_Valid_Instance(object_instance)) {
apdu_len = Multistate_Output_Encode_Property_APDU(&Temp_Buf[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
#if BACFILE
case OBJECT_FILE:
if (bacfile_valid_instance(object_instance)) {
apdu_len = bacfile_encode_property_apdu(&Temp_Buf[0],
object_instance,
property,
array_index,
error_class, error_code);
} else {
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
break;
#endif
default:
*error_class = ERROR_CLASS_OBJECT;
*error_code = ERROR_CODE_UNSUPPORTED_OBJECT_TYPE;
break;
}
return apdu_len;
}
void handler_read_property_multiple(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
int len = 0;
int copy_len = 0;
int decode_len = 0;
int application_data_len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
int bytes_sent;
BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
BACNET_ADDRESS my_address;
BACNET_OBJECT_TYPE object_type;
uint32_t object_instance = 0;
int apdu_len = 0;
int npdu_len;
BACNET_PROPERTY_ID object_property, temp_object_property;
int32_t array_index = 0;
/* jps_debug - see if we are utilizing all the buffer */
/* memset(&Handler_Transmit_Buffer[0], 0xff, MAX_MPDU);*/
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
npdu_len = npdu_encode_pdu(
&Handler_Transmit_Buffer[0],
src, &my_address, &npdu_data);
#if PRINT_ENABLED
if (service_len <= 0)
printf("RPM: Unable to decode request!\r\n");
#endif
/* bad decoding - send an abort */
if (service_len == 0)
{
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
printf("RPM: Sending Abort!\r\n");
#endif
} else if (service_data->segmented_message) {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
#if PRINT_ENABLED
printf("RPM: Sending Abort!\r\n");
#endif
} else {
/* decode apdu request & encode apdu reply
encode complex ack, invoke id, service choice */
apdu_len = rpm_ack_encode_apdu_init(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id);
do
{
len = rpm_ack_decode_object_id(
&service_request[decode_len],
service_len - decode_len,
&object_type, &object_instance);
/* error - end of object? */
if (len < 0) {
len = rpm_ack_decode_object_end(
&service_request[decode_len],
service_len - decode_len);
if (len == 1) {
decode_len++;
len = rpm_ack_encode_apdu_object_end(&Temp_Buf[0]);
copy_len = apdu_copy(
&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0],
apdu_len, len,
sizeof(Handler_Transmit_Buffer));
if (!copy_len) {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto RPM_ABORT;
}
} else {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_OTHER, true);
goto RPM_ABORT;
}
break;
} else {
decode_len += len;
}
len = rpm_ack_encode_apdu_object_begin(
&Temp_Buf[0],
object_type, object_instance);
copy_len = apdu_copy(
&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0],
apdu_len, len,
sizeof(Handler_Transmit_Buffer));
if (!copy_len) {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto RPM_ABORT;
}
/* do each property of this object of the RPM request */
do
{
len = rpm_decode_object_property(
&service_request[decode_len],
service_len - decode_len,
&object_property,
&array_index);
/* error - end of property list? */
if (len < 0) {
break;
} else {
decode_len += len;
}
/* handle the special properties */
if ((object_property == PROP_ALL) ||
(object_property == PROP_REQUIRED) ||
(object_property == PROP_OPTIONAL))
{
struct special_property_list_t property_list;
unsigned property_count = 0;
unsigned index = 0;
RPM_Property_List(object_type, &property_list);
property_count = RPM_Object_Property_Count(
&property_list,
object_property);
for (index = 0; index < property_count; index++)
{
temp_object_property = RPM_Object_Property(
&property_list,
object_property,
index);
len = rpm_ack_encode_apdu_object_property(
&Temp_Buf[0],
temp_object_property,
array_index);
copy_len = apdu_copy(
&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0],
apdu_len, len,
sizeof(Handler_Transmit_Buffer));
if (!copy_len) {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
goto RPM_ABORT;
}
application_data_len = Encode_Property_APDU(
&Application_Buf[0],
object_type,
object_instance,
temp_object_property,
array_index,
&error_class, &error_code);
if (application_data_len < 0) {
len = rpm_ack_encode_apdu_object_property_error(
&Temp_Buf[0],
error_class, error_code);
} else {
len = rpm_ack_encode_apdu_object_property_value(
&Temp_Buf[0],
&Application_Buf[0],
application_data_len);
}
copy_len = apdu_copy(
&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0],
apdu_len, len,
sizeof(Handler_Transmit_Buffer));
if (!copy_len) {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto RPM_ABORT;
}
}
} else {
/* handle an individual property */
application_data_len = Encode_Property_APDU(
&Application_Buf[0],
object_type,
object_instance,
object_property,
array_index,
&error_class, &error_code);
if (application_data_len < 0) {
len = rpm_ack_encode_apdu_object_property_error(
&Temp_Buf[0],
error_class, error_code);
} else {
len = rpm_ack_encode_apdu_object_property_value(
&Temp_Buf[0],
&Application_Buf[0],
application_data_len);
}
copy_len = apdu_copy(
&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0],
apdu_len, len,
sizeof(Handler_Transmit_Buffer));
if (!copy_len) {
apdu_len = abort_encode_apdu(
&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto RPM_ABORT;
}
}
} while(1);
if (decode_len >= service_len) {
break;
}
} while(1);
}
RPM_ABORT:
pdu_len = apdu_len + npdu_len;
bytes_sent = datalink_send_pdu(
src,
&npdu_data,
&Handler_Transmit_Buffer[0],
pdu_len);
}
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