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bacnet-stack/ports/stm32f10x/device.c

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/**************************************************************************
*
* Copyright (C) 2011 Steve Karg <skarg@users.sourceforge.net>
*
* 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 <stdbool.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "bacdef.h"
#include "bacdcode.h"
#include "bacstr.h"
#include "bacenum.h"
#include "apdu.h"
#include "dcc.h"
#include "datalink.h"
#include "rs485.h"
#include "version.h"
#include "handlers.h"
/* objects */
#include "device.h"
#include "bo.h"
/* forward prototype */
int Device_Read_Property_Local(
BACNET_READ_PROPERTY_DATA * rpdata);
bool Device_Write_Property_Local(
BACNET_WRITE_PROPERTY_DATA * wp_data);
static struct my_object_functions {
BACNET_OBJECT_TYPE Object_Type;
object_init_function Object_Init;
object_count_function Object_Count;
object_index_to_instance_function Object_Index_To_Instance;
object_valid_instance_function Object_Valid_Instance;
object_name_function Object_Name;
read_property_function Object_Read_Property;
write_property_function Object_Write_Property;
rpm_property_lists_function Object_RPM_List;
} Object_Table[] = {
{
OBJECT_DEVICE, NULL, /* don't init - recursive! */
Device_Count, Device_Index_To_Instance,
Device_Valid_Object_Instance_Number, Device_Object_Name,
Device_Read_Property_Local, Device_Write_Property_Local,
Device_Property_Lists}, {
OBJECT_BINARY_OUTPUT, Binary_Output_Init, Binary_Output_Count,
Binary_Output_Index_To_Instance, Binary_Output_Valid_Instance,
Binary_Output_Object_Name, Binary_Output_Read_Property,
Binary_Output_Write_Property, Binary_Output_Property_Lists}, {
MAX_BACNET_OBJECT_TYPE, NULL, NULL, NULL, NULL, NULL, NULL, NULL}
};
/* note: you really only need to define variables for
properties that are writable or that may change.
The properties that are constant can be hard coded
into the read-property encoding. */
static uint32_t Object_Instance_Number = 103;
static BACNET_DEVICE_STATUS System_Status = STATUS_OPERATIONAL;
static BACNET_CHARACTER_STRING My_Object_Name;
static uint32_t Database_Revision;
static BACNET_REINITIALIZED_STATE Reinitialize_State = BACNET_REINIT_IDLE;
/* These three arrays are used by the ReadPropertyMultiple handler */
static const int Device_Properties_Required[] = {
PROP_OBJECT_IDENTIFIER,
PROP_OBJECT_NAME,
PROP_OBJECT_TYPE,
PROP_SYSTEM_STATUS,
PROP_VENDOR_NAME,
PROP_VENDOR_IDENTIFIER,
PROP_MODEL_NAME,
PROP_FIRMWARE_REVISION,
PROP_APPLICATION_SOFTWARE_VERSION,
PROP_PROTOCOL_VERSION,
PROP_PROTOCOL_REVISION,
PROP_PROTOCOL_SERVICES_SUPPORTED,
PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED,
PROP_OBJECT_LIST,
PROP_MAX_APDU_LENGTH_ACCEPTED,
PROP_SEGMENTATION_SUPPORTED,
PROP_APDU_TIMEOUT,
PROP_NUMBER_OF_APDU_RETRIES,
PROP_DEVICE_ADDRESS_BINDING,
PROP_DATABASE_REVISION,
-1
};
static const int Device_Properties_Optional[] = {
PROP_DESCRIPTION,
PROP_LOCATION,
PROP_MAX_MASTER,
PROP_MAX_INFO_FRAMES,
-1
};
static const int Device_Properties_Proprietary[] = {
9600,
-1
};
static struct my_object_functions *Device_Objects_Find_Functions(
BACNET_OBJECT_TYPE Object_Type)
{
struct my_object_functions *pObject = NULL;
pObject = &Object_Table[0];
while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) {
/* handle each object type */
if (pObject->Object_Type == Object_Type) {
return (pObject);
}
pObject++;
}
return (NULL);
}
static int Read_Property_Common(
struct my_object_functions *pObject,
BACNET_READ_PROPERTY_DATA * rpdata)
{
int apdu_len = BACNET_STATUS_ERROR;
BACNET_CHARACTER_STRING char_string;
uint8_t *apdu = NULL;
if ((rpdata->application_data == NULL) ||
(rpdata->application_data_len == 0)) {
return 0;
}
apdu = rpdata->application_data;
switch (rpdata->object_property) {
case PROP_OBJECT_IDENTIFIER:
/* only array properties can have array options */
if (rpdata->array_index != BACNET_ARRAY_ALL) {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = BACNET_STATUS_ERROR;
} else {
/* Device Object exception: requested instance
may not match our instance if a wildcard */
if (rpdata->object_type == OBJECT_DEVICE) {
rpdata->object_instance = Object_Instance_Number;
}
apdu_len =
encode_application_object_id(&apdu[0], rpdata->object_type,
rpdata->object_instance);
}
break;
case PROP_OBJECT_NAME:
/* only array properties can have array options */
if (rpdata->array_index != BACNET_ARRAY_ALL) {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = BACNET_STATUS_ERROR;
} else {
characterstring_init_ansi(&char_string, "");
if (pObject->Object_Name) {
(void) pObject->Object_Name(rpdata->object_instance,
&char_string);
}
apdu_len =
encode_application_character_string(&apdu[0],
&char_string);
}
break;
case PROP_OBJECT_TYPE:
/* only array properties can have array options */
if (rpdata->array_index != BACNET_ARRAY_ALL) {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = BACNET_STATUS_ERROR;
} else {
apdu_len =
encode_application_enumerated(&apdu[0],
rpdata->object_type);
}
break;
default:
if (pObject->Object_Read_Property) {
apdu_len = pObject->Object_Read_Property(rpdata);
}
break;
}
return apdu_len;
}
/* Encodes the property APDU and returns the length,
or sets the error, and returns BACNET_STATUS_ERROR */
int Device_Read_Property(
BACNET_READ_PROPERTY_DATA * rpdata)
{
int apdu_len = BACNET_STATUS_ERROR;
struct my_object_functions *pObject = NULL;
/* initialize the default return values */
pObject = Device_Objects_Find_Functions(rpdata->object_type);
if (pObject) {
if (pObject->Object_Valid_Instance &&
pObject->Object_Valid_Instance(rpdata->object_instance)) {
apdu_len = Read_Property_Common(pObject, rpdata);
} else {
rpdata->error_class = ERROR_CLASS_OBJECT;
rpdata->error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
} else {
rpdata->error_class = ERROR_CLASS_OBJECT;
rpdata->error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
return apdu_len;
}
bool Device_Write_Property(
BACNET_WRITE_PROPERTY_DATA * wp_data)
{
bool status = false;
struct my_object_functions *pObject = NULL;
/* initialize the default return values */
pObject = Device_Objects_Find_Functions(wp_data->object_type);
if (pObject) {
if (pObject->Object_Valid_Instance &&
pObject->Object_Valid_Instance(wp_data->object_instance)) {
if (pObject->Object_Write_Property) {
status = pObject->Object_Write_Property(wp_data);
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
}
} else {
wp_data->error_class = ERROR_CLASS_OBJECT;
wp_data->error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
} else {
wp_data->error_class = ERROR_CLASS_OBJECT;
wp_data->error_code = ERROR_CODE_UNKNOWN_OBJECT;
}
return status;
}
/* for a given object type, returns the special property list */
void Device_Objects_Property_List(
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance,
struct special_property_list_t *pPropertyList)
{
struct my_object_functions *pObject = NULL;
(void)object_instance;
pPropertyList->Required.pList = NULL;
pPropertyList->Optional.pList = NULL;
pPropertyList->Proprietary.pList = NULL;
/* If we can find an entry for the required object type
* and there is an Object_List_RPM fn ptr then call it
* to populate the pointers to the individual list counters.
*/
pObject = Device_Objects_Find_Functions(object_type);
if ((pObject != NULL) && (pObject->Object_RPM_List != NULL)) {
pObject->Object_RPM_List(&pPropertyList->Required.pList,
&pPropertyList->Optional.pList, &pPropertyList->Proprietary.pList);
}
/* Fetch the counts if available otherwise zero them */
pPropertyList->Required.count =
pPropertyList->Required.pList ==
NULL ? 0 : property_list_count(pPropertyList->Required.pList);
pPropertyList->Optional.count =
pPropertyList->Optional.pList ==
NULL ? 0 : property_list_count(pPropertyList->Optional.pList);
pPropertyList->Proprietary.count =
pPropertyList->Proprietary.pList ==
NULL ? 0 : property_list_count(pPropertyList->Proprietary.pList);
return;
}
void Device_Property_Lists(
const int **pRequired,
const int **pOptional,
const int **pProprietary)
{
if (pRequired)
*pRequired = Device_Properties_Required;
if (pOptional)
*pOptional = Device_Properties_Optional;
if (pProprietary)
*pProprietary = Device_Properties_Proprietary;
return;
}
unsigned Device_Count(
void)
{
return 1;
}
uint32_t Device_Index_To_Instance(
unsigned index)
{
(void)index;
return Object_Instance_Number;
}
bool Device_Object_Name(
uint32_t object_instance,
BACNET_CHARACTER_STRING * object_name)
{
bool status = false;
if (object_instance == Object_Instance_Number) {
status = characterstring_copy(object_name, &My_Object_Name);
}
return status;
}
bool Device_Set_Object_Name(
BACNET_CHARACTER_STRING * object_name)
{
bool status = false; /*return value */
if (!characterstring_same(&My_Object_Name, object_name)) {
/* Make the change and update the database revision */
status = characterstring_copy(&My_Object_Name, object_name);
Device_Inc_Database_Revision();
}
return status;
}
bool Device_Reinitialize(
BACNET_REINITIALIZE_DEVICE_DATA * rd_data)
{
bool status = false;
if (characterstring_ansi_same(&rd_data->password, "stm32-challenge")) {
Reinitialize_State = rd_data->state;
dcc_set_status_duration(COMMUNICATION_ENABLE, 0);
/* Note: you could use a mix of state
and password to multiple things */
/* note: you probably want to restart *after* the
simple ack has been sent from the return handler
so just set a flag from here */
status = true;
} else {
rd_data->error_class = ERROR_CLASS_SECURITY;
rd_data->error_code = ERROR_CODE_PASSWORD_FAILURE;
}
return status;
}
BACNET_REINITIALIZED_STATE Device_Reinitialized_State(
void)
{
return Reinitialize_State;
}
void Device_Init(
object_functions_t * object_table)
{
struct my_object_functions *pObject = NULL;
/* we don't use the object table passed in
since there is extra stuff we don't need in there. */
(void) object_table;
/* our local object table */
pObject = &Object_Table[0];
while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) {
if (pObject->Object_Init) {
pObject->Object_Init();
}
pObject++;
}
dcc_set_status_duration(COMMUNICATION_ENABLE, 0);
if (Object_Instance_Number >= BACNET_MAX_INSTANCE) {
Object_Instance_Number = 103;
srand(Object_Instance_Number);
}
characterstring_init_ansi(&My_Object_Name, "stm32-design-challenge-103");
}
/* methods to manipulate the data */
uint32_t Device_Object_Instance_Number(
void)
{
return Object_Instance_Number;
}
bool Device_Set_Object_Instance_Number(
uint32_t object_id)
{
bool status = true; /* return value */
if (object_id <= BACNET_MAX_INSTANCE) {
Object_Instance_Number = object_id;
} else
status = false;
return status;
}
bool Device_Valid_Object_Instance_Number(
uint32_t object_id)
{
return (Object_Instance_Number == object_id);
}
BACNET_DEVICE_STATUS Device_System_Status(
void)
{
return System_Status;
}
int Device_Set_System_Status(
BACNET_DEVICE_STATUS status,
bool local)
{
/*return value - 0 = ok, -1 = bad value, -2 = not allowed */
int result = -1;
if (status < MAX_DEVICE_STATUS) {
System_Status = status;
result = 0;
}
return result;
}
uint16_t Device_Vendor_Identifier(
void)
{
return BACNET_VENDOR_ID;
}
BACNET_SEGMENTATION Device_Segmentation_Supported(
void)
{
return SEGMENTATION_NONE;
}
uint32_t Device_Database_Revision(
void)
{
return Database_Revision;
}
void Device_Inc_Database_Revision(
void)
{
Database_Revision++;
}
/* Since many network clients depend on the object list */
/* for discovery, it must be consistent! */
unsigned Device_Object_List_Count(
void)
{
unsigned count = 0; /* number of objects */
struct my_object_functions *pObject = NULL;
/* initialize the default return values */
pObject = &Object_Table[0];
while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) {
if (pObject->Object_Count) {
count += pObject->Object_Count();
}
pObject++;
}
return count;
}
bool Device_Object_List_Identifier(
uint32_t array_index,
int *object_type,
uint32_t * instance)
{
bool status = false;
uint32_t count = 0;
uint32_t object_index = 0;
struct my_object_functions *pObject = NULL;
/* array index zero is length - so invalid */
if (array_index == 0) {
return status;
}
object_index = array_index - 1;
/* initialize the default return values */
pObject = &Object_Table[0];
while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) {
if (pObject->Object_Count && pObject->Object_Index_To_Instance) {
object_index -= count;
count = pObject->Object_Count();
if (object_index < count) {
*object_type = pObject->Object_Type;
*instance = pObject->Object_Index_To_Instance(object_index);
status = true;
break;
}
}
pObject++;
}
return status;
}
bool Device_Valid_Object_Name(
BACNET_CHARACTER_STRING * object_name1,
int *object_type,
uint32_t * object_instance)
{
bool found = false;
int type = 0;
uint32_t instance;
uint32_t max_objects = 0, i = 0;
bool check_id = false;
BACNET_CHARACTER_STRING object_name2;
struct my_object_functions *pObject = NULL;
max_objects = Device_Object_List_Count();
for (i = 1; i <= max_objects; i++) {
check_id = Device_Object_List_Identifier(i, &type, &instance);
if (check_id) {
pObject = Device_Objects_Find_Functions((BACNET_OBJECT_TYPE) type);
if ((pObject != NULL) && (pObject->Object_Name != NULL) &&
(pObject->Object_Name(instance, &object_name2) &&
characterstring_same(object_name1, &object_name2))) {
found = true;
if (object_type) {
*object_type = type;
}
if (object_instance) {
*object_instance = instance;
}
break;
}
}
}
return found;
}
bool Device_Valid_Object_Id(
int object_type,
uint32_t object_instance)
{
bool status = false; /* return value */
struct my_object_functions *pObject = NULL;
pObject = Device_Objects_Find_Functions((BACNET_OBJECT_TYPE) object_type);
if ((pObject != NULL) && (pObject->Object_Valid_Instance != NULL)) {
status = pObject->Object_Valid_Instance(object_instance);
}
return status;
}
bool Device_Object_Name_Copy(
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance,
BACNET_CHARACTER_STRING * object_name)
{
struct my_object_functions *pObject = NULL;
bool found = false;
pObject = Device_Objects_Find_Functions(object_type);
if ((pObject != NULL) && (pObject->Object_Name != NULL)) {
found = pObject->Object_Name(object_instance, object_name);
}
return found;
}
/* return the length of the apdu encoded or BACNET_STATUS_ERROR for error */
int Device_Read_Property_Local(
BACNET_READ_PROPERTY_DATA * rpdata)
{
int apdu_len = 0; /* return value */
int len = 0; /* apdu len intermediate value */
BACNET_BIT_STRING bit_string;
BACNET_CHARACTER_STRING char_string;
uint32_t i = 0;
int object_type = 0;
uint32_t instance = 0;
uint32_t count = 0;
uint8_t *apdu = NULL;
struct my_object_functions *pObject = NULL;
if ((rpdata->application_data == NULL) ||
(rpdata->application_data_len == 0)) {
return 0;
}
apdu = rpdata->application_data;
switch ((int)rpdata->object_property) {
case PROP_DESCRIPTION:
characterstring_init_ansi(&char_string, "BACnet Development Kit");
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_LOCATION:
characterstring_init_ansi(&char_string, "USA");
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_SYSTEM_STATUS:
apdu_len =
encode_application_enumerated(&apdu[0],
Device_System_Status());
break;
case PROP_VENDOR_NAME:
characterstring_init_ansi(&char_string, BACNET_VENDOR_NAME);
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_VENDOR_IDENTIFIER:
apdu_len = encode_application_unsigned(&apdu[0], BACNET_VENDOR_ID);
break;
case PROP_MODEL_NAME:
characterstring_init_ansi(&char_string, "bdk-stm32-mstp");
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_FIRMWARE_REVISION:
characterstring_init_ansi(&char_string, BACnet_Version);
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_APPLICATION_SOFTWARE_VERSION:
characterstring_init_ansi(&char_string, "1.0");
apdu_len =
encode_application_character_string(&apdu[0], &char_string);
break;
case PROP_PROTOCOL_VERSION:
apdu_len =
encode_application_unsigned(&apdu[0], BACNET_PROTOCOL_VERSION);
break;
case PROP_PROTOCOL_REVISION:
apdu_len =
encode_application_unsigned(&apdu[0],
BACNET_PROTOCOL_REVISION);
break;
case PROP_PROTOCOL_SERVICES_SUPPORTED:
/* Note: list of services that are executed, not initiated. */
bitstring_init(&bit_string);
for (i = 0; i < MAX_BACNET_SERVICES_SUPPORTED; i++) {
/* automatic lookup based on handlers set */
bitstring_set_bit(&bit_string, (uint8_t) i,
apdu_service_supported((BACNET_SERVICES_SUPPORTED) i));
}
apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
break;
case PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED:
/* Note: this is the list of objects that can be in this device,
not a list of objects that this device can access */
bitstring_init(&bit_string);
for (i = 0; i < MAX_ASHRAE_OBJECT_TYPE; i++) {
/* initialize all the object types to not-supported */
bitstring_set_bit(&bit_string, (uint8_t) i, false);
}
/* set the object types with objects to supported */
i = 0;
pObject = &Object_Table[i];
while (pObject->Object_Type < MAX_BACNET_OBJECT_TYPE) {
if ((pObject->Object_Count) && (pObject->Object_Count() > 0)) {
bitstring_set_bit(&bit_string, pObject->Object_Type, true);
}
pObject++;
}
apdu_len = encode_application_bitstring(&apdu[0], &bit_string);
break;
case PROP_OBJECT_LIST:
count = Device_Object_List_Count();
/* Array element zero is the number of objects in the list */
if (rpdata->array_index == 0)
apdu_len = encode_application_unsigned(&apdu[0], count);
/* if no index was specified, then try to encode the entire list */
/* into one packet. Note that more than likely you will have */
/* to return an error if the number of encoded objects exceeds */
/* your maximum APDU size. */
else if (rpdata->array_index == BACNET_ARRAY_ALL) {
for (i = 1; i <= count; i++) {
if (Device_Object_List_Identifier(i, &object_type,
&instance)) {
len =
encode_application_object_id(&apdu[apdu_len],
object_type, instance);
apdu_len += len;
/* assume next one is the same size as this one */
/* can we all fit into the APDU? */
if ((apdu_len + len) >= MAX_APDU) {
/* Abort response */
rpdata->error_code =
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
apdu_len = BACNET_STATUS_ABORT;
break;
}
} else {
/* error: internal error? */
rpdata->error_class = ERROR_CLASS_SERVICES;
rpdata->error_code = ERROR_CODE_OTHER;
apdu_len = BACNET_STATUS_ERROR;
break;
}
}
} else {
if (Device_Object_List_Identifier(rpdata->array_index,
&object_type, &instance))
apdu_len =
encode_application_object_id(&apdu[0], object_type,
instance);
else {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_INVALID_ARRAY_INDEX;
apdu_len = BACNET_STATUS_ERROR;
}
}
break;
case PROP_MAX_APDU_LENGTH_ACCEPTED:
apdu_len = encode_application_unsigned(&apdu[0], MAX_APDU);
break;
case PROP_SEGMENTATION_SUPPORTED:
apdu_len =
encode_application_enumerated(&apdu[0],
Device_Segmentation_Supported());
break;
case PROP_APDU_TIMEOUT:
apdu_len = encode_application_unsigned(&apdu[0], apdu_timeout());
break;
case PROP_NUMBER_OF_APDU_RETRIES:
apdu_len = encode_application_unsigned(&apdu[0], apdu_retries());
break;
case PROP_DEVICE_ADDRESS_BINDING:
/* FIXME: encode the list here, if it exists */
break;
case PROP_DATABASE_REVISION:
apdu_len =
encode_application_unsigned(&apdu[0],
Device_Database_Revision());
break;
case PROP_MAX_INFO_FRAMES:
apdu_len =
encode_application_unsigned(&apdu[0],
dlmstp_max_info_frames());
break;
case PROP_MAX_MASTER:
apdu_len =
encode_application_unsigned(&apdu[0], dlmstp_max_master());
break;
case 9600:
apdu_len =
encode_application_unsigned(&apdu[0], rs485_baud_rate());
break;
default:
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
apdu_len = BACNET_STATUS_ERROR;
break;
}
/* only array properties can have array options */
if ((apdu_len >= 0) && (rpdata->object_property != PROP_OBJECT_LIST) &&
(rpdata->array_index != BACNET_ARRAY_ALL)) {
rpdata->error_class = ERROR_CLASS_PROPERTY;
rpdata->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
apdu_len = BACNET_STATUS_ERROR;
}
return apdu_len;
}
bool Device_Write_Property_Local(
BACNET_WRITE_PROPERTY_DATA * wp_data)
{
bool status = false; /* return value - false=error */
int len = 0;
uint8_t encoding = 0;
size_t length = 0;
BACNET_APPLICATION_DATA_VALUE value;
/* decode the some of the request */
len =
bacapp_decode_application_data(wp_data->application_data,
wp_data->application_data_len, &value);
/* FIXME: len < application_data_len: more data? */
if (len < 0) {
/* error while decoding - a value larger than we can handle */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
return false;
}
if ((wp_data->object_property != PROP_OBJECT_LIST) &&
(wp_data->array_index != BACNET_ARRAY_ALL)) {
/* only array properties can have array options */
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY;
return false;
}
switch ((int)wp_data->object_property) {
case PROP_OBJECT_IDENTIFIER:
if (value.tag == BACNET_APPLICATION_TAG_OBJECT_ID) {
if ((value.type.Object_Id.type == OBJECT_DEVICE) &&
(Device_Set_Object_Instance_Number(value.type.
Object_Id.instance))) {
/* we could send an I-Am broadcast to let the world know */
status = true;
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_INFO_FRAMES:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if (value.type.Unsigned_Int <= 255) {
dlmstp_set_max_info_frames(value.type.Unsigned_Int);
status = true;
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_MAX_MASTER:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if ((value.type.Unsigned_Int > 0) &&
(value.type.Unsigned_Int <= 127)) {
dlmstp_set_max_master(value.type.Unsigned_Int);
status = true;
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_OBJECT_NAME:
if (value.tag == BACNET_APPLICATION_TAG_CHARACTER_STRING) {
length = characterstring_length(&value.type.Character_String);
if (length < 1) {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
} else if (length < characterstring_capacity(&My_Object_Name)) {
encoding =
characterstring_encoding(&value.type.Character_String);
if (encoding < MAX_CHARACTER_STRING_ENCODING) {
/* All the object names in a device must be unique. */
if (Device_Valid_Object_Name(&value.type.
Character_String, NULL, NULL)) {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_DUPLICATE_NAME;
} else {
Device_Set_Object_Name(&value.type.
Character_String);
status = true;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code =
ERROR_CODE_CHARACTER_SET_NOT_SUPPORTED;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code =
ERROR_CODE_NO_SPACE_TO_WRITE_PROPERTY;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case 9600:
if (value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT) {
if ((value.type.Unsigned_Int <= 115200) &&
(rs485_baud_rate_set(value.type.Unsigned_Int))) {
status = true;
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_VALUE_OUT_OF_RANGE;
}
} else {
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_INVALID_DATA_TYPE;
}
break;
case PROP_OBJECT_TYPE:
case PROP_VENDOR_NAME:
case PROP_VENDOR_IDENTIFIER:
case PROP_MODEL_NAME:
case PROP_FIRMWARE_REVISION:
case PROP_APPLICATION_SOFTWARE_VERSION:
case PROP_PROTOCOL_VERSION:
case PROP_PROTOCOL_REVISION:
case PROP_PROTOCOL_SERVICES_SUPPORTED:
case PROP_PROTOCOL_OBJECT_TYPES_SUPPORTED:
case PROP_OBJECT_LIST:
case PROP_MAX_APDU_LENGTH_ACCEPTED:
case PROP_SEGMENTATION_SUPPORTED:
case PROP_DEVICE_ADDRESS_BINDING:
case PROP_ACTIVE_COV_SUBSCRIPTIONS:
case PROP_DATABASE_REVISION:
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
break;
default:
wp_data->error_class = ERROR_CLASS_PROPERTY;
wp_data->error_code = ERROR_CODE_UNKNOWN_PROPERTY;
break;
}
/* not using len at this time */
(void)len;
return status;
}
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