void Send_UnconfirmedPrivateTransfer(
BACNET_ADDRESS * dest,
BACNET_PRIVATE_TRANSFER_DATA * private_data)
{
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
if (!dcc_communication_enabled())
return;
datalink_get_my_address(&my_address);
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], dest, &my_address,
&npdu_data);
/* encode the APDU portion of the packet */
len =
ptransfer_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],invoke_id,
private_data);
pdu_len += len;
bytes_sent =
datalink_send_pdu(dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr,
"Failed to Send UnconfirmedPrivateTransfer Request (%s)!\n",
strerror(errno));
#endif
}
/** Send a Who-Is request to a remote network for a specific device, a range,
* or any device.
* If low_limit and high_limit both are -1, then the range is unlimited.
* If low_limit and high_limit have the same non-negative value, then only
* that device will respond.
* Otherwise, low_limit must be less than high_limit.
* @param target_address [in] BACnet address of target router
* @param low_limit [in] Device Instance Low Range, 0 - 4,194,303 or -1
* @param high_limit [in] Device Instance High Range, 0 - 4,194,303 or -1
*/
void Send_WhoIs_To_Network(
BACNET_ADDRESS * target_address,
int32_t low_limit,
int32_t high_limit)
{
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
datalink_get_my_address(&my_address);
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], target_address,
&my_address, &npdu_data);
/* encode the APDU portion of the packet */
len =
whois_encode_apdu(&Handler_Transmit_Buffer[pdu_len], low_limit,
high_limit);
pdu_len += len;
bytes_sent =
datalink_send_pdu(target_address, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send Who-Is Request (%s)!\n",
strerror(errno));
#endif
}
/**
* Sends a TimeSync message to a specific destination
*
* @param dest - #BACNET_ADDRESS - the specific destination
* @param bdate - #BACNET_DATE
* @param btime - #BACNET_TIME
*/
void Send_TimeSync_Remote(
BACNET_ADDRESS * dest,
BACNET_DATE * bdate,
BACNET_TIME * btime)
{
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
if (!dcc_communication_enabled())
return;
datalink_get_my_address(&my_address);
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], dest, &my_address,
&npdu_data);
/* encode the APDU portion of the packet */
len =
timesync_encode_apdu(&Handler_Transmit_Buffer[pdu_len], bdate, btime);
pdu_len += len;
/* send it out the datalink */
bytes_sent =
datalink_send_pdu(dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send Time-Synchronization Request (%s)!\n",
strerror(errno));
#endif
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = {
0
}; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 100; /* milliseconds */
BACNET_ADDRESS my_address, broadcast_address;
(void) argc;
(void) argv;
Device_Set_Object_Instance_Number(4194300);
address_init();
Init_Service_Handlers();
dlenv_init();
datalink_get_broadcast_address(&broadcast_address);
print_address("Broadcast", &broadcast_address);
datalink_get_my_address(&my_address);
print_address("Address", &my_address);
printf("BACnet stack running...\n");
/* loop forever */
for (;;) {
/* input */
/* returns 0 bytes on timeout */
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
/* process */
if (pdu_len) {
npdu_handler(&src, &Rx_Buf[0], pdu_len);
}
if (I_Am_Request) {
I_Am_Request = false;
Send_I_Am(&Handler_Transmit_Buffer[0]);
} else if (Who_Is_Request) {
Who_Is_Request = false;
Send_WhoIs(-1, -1);
} else {
Read_Properties();
}
/* output */
/* blink LEDs, Turn on or off outputs, etc */
/* wait for ESC from keyboard before quitting */
if (kbhit() && (getch() == 0x1B))
break;
}
print_address_cache();
return 0;
}
int Send_ConfirmedPrivateTransfer(
BACNET_ADDRESS * dest,
BACNET_PRIVATE_TRANSFER_DATA * private_data)
{
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
int invoke_id = 0;
if (!dcc_communication_enabled())
return -1;
datalink_get_my_address(&my_address);
/* encode the NPDU portion of the packet */
// npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL); //Fance
npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], dest, &my_address,
&npdu_data);
/* encode the APDU portion of the packet */
invoke_id = tsm_next_free_invokeID();
if(invoke_id==0)//这里是当没有可用的调用ID的时候将所有ID都清零;变为可用;
tsm_free_all_invoke_id();
len =
ptransfer_encode_apdu(&Handler_Transmit_Buffer[pdu_len],invoke_id,private_data); //这里的还需要完善 Invoke ID
// uptransfer_encode_apdu(&Handler_Transmit_Buffer[pdu_len], //Fance
// private_data);
pdu_len += len;
bytes_sent =
datalink_send_pdu(dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr,
"Failed to Send UnconfirmedPrivateTransfer Request (%s)!\n",
strerror(errno));
#endif
if(bytes_sent>0)
return invoke_id;
else
return -2;
}
/** Send a Who-Has request for a device which has a specific Object type and ID.
* @ingroup DMDOB
* If low_limit and high_limit both are -1, then the device ID range is unlimited.
* If low_limit and high_limit have the same non-negative value, then only
* that device will respond.
* Otherwise, low_limit must be less than high_limit for a range.
* @param low_limit [in] Device Instance Low Range, 0 - 4,194,303 or -1
* @param high_limit [in] Device Instance High Range, 0 - 4,194,303 or -1
* @param object_type [in] The BACNET_OBJECT_TYPE of the desired Object.
* @param object_instance [in] The ID of the desired Object.
*/
void Send_WhoHas_Object(
int32_t low_limit,
int32_t high_limit,
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_WHO_HAS_DATA data;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
/* if we are forbidden to send, don't send! */
if (!dcc_communication_enabled())
return;
/* Who-Has is a global broadcast */
datalink_get_broadcast_address(&dest);
datalink_get_my_address(&my_address);
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], &dest, &my_address,
&npdu_data);
/* encode the APDU portion of the packet */
data.low_limit = low_limit;
data.high_limit = high_limit;
data.is_object_name = false;
data.object.identifier.type = object_type;
data.object.identifier.instance = object_instance;
len = whohas_encode_apdu(&Handler_Transmit_Buffer[pdu_len], &data);
pdu_len += len;
bytes_sent =
datalink_send_pdu(&dest, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send Who-Has Request (%s)!\n",
strerror(errno));
#endif
}
/** Sends an Abort message
* @param buffer The buffer to build the message for sending.
* @param dest - Destination address to send the message
* @param invoke_id - use to match up a reply
* @param reason - #BACNET_ABORT_REASON enumeration
* @param server - true or false
*
* @return Size of the message sent (bytes), or a negative value on error.
*/
int Send_Error_To_Network(
uint8_t * buffer,
BACNET_ADDRESS *dest,
uint8_t invoke_id,
BACNET_CONFIRMED_SERVICE service,
BACNET_ERROR_CLASS error_class,
BACNET_ERROR_CODE error_code)
{
int pdu_len = 0;
BACNET_ADDRESS src;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
datalink_get_my_address(&src);
pdu_len = error_encode_pdu(buffer, dest, &src, &npdu_data,
invoke_id, service, error_class, error_code);
bytes_sent = datalink_send_pdu(dest, &npdu_data, &buffer[0], pdu_len);
return bytes_sent;
}
int ucov_notify_encode_pdu(
uint8_t * buffer,
BACNET_ADDRESS * dest,
BACNET_NPDU_DATA * npdu_data,
BACNET_COV_DATA * cov_data)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS my_address;
datalink_get_my_address(&my_address);
/* unconfirmed is a broadcast */
datalink_get_broadcast_address(dest);
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len = npdu_encode_pdu(&buffer[0], dest, &my_address, npdu_data);
/* encode the APDU portion of the packet */
len = ucov_notify_encode_apdu(&buffer[pdu_len], cov_data);
pdu_len += len;
return pdu_len;
}
/** Handler for a Reinitialize Device (RD) request.
* @ingroup DMRD
* This handler will be invoked by apdu_handler() if it has been enabled
* by a call to apdu_set_confirmed_handler().
* This handler builds a response packet, which is
* - an Abort if
* - the message is segmented
* - if decoding fails
* - an Error if
* - the RD password is incorrect
* - the Reinitialize Device operation fails
* - a Reject if the request state is invalid
* - else tries to send a simple ACK for the RD on success.
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
void handler_reinitialize_device(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_REINITIALIZE_DEVICE_DATA rd_data;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
#if PRINT_ENABLED
fprintf(stderr, "ReinitializeDevice!\n");
#endif
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr,
"ReinitializeDevice: Sending Abort - segmented message.\n");
#endif
goto RD_ABORT;
}
/* decode the service request only */
len =
rd_decode_service_request(service_request, service_len, &rd_data.state,
&rd_data.password);
#if PRINT_ENABLED
if (len > 0) {
fprintf(stderr, "ReinitializeDevice: state=%u password=%s\n",
(unsigned) rd_data.state,
characterstring_value(&rd_data.password));
} else {
fprintf(stderr, "ReinitializeDevice: Unable to decode request!\n");
}
#endif
/* bad decoding or something we didn't understand - send an abort */
if (len < 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr,
"ReinitializeDevice: Sending Abort - could not decode.\n");
#endif
goto RD_ABORT;
}
/* check the data from the request */
if (rd_data.state >= MAX_BACNET_REINITIALIZED_STATE) {
len =
reject_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, REJECT_REASON_UNDEFINED_ENUMERATION);
#if PRINT_ENABLED
fprintf(stderr,
"ReinitializeDevice: Sending Reject - undefined enumeration\n");
#endif
} else {
#if BAC_ROUTING
/* Check to see if the current Device supports this service. */
len =
Routed_Device_Service_Approval
(SERVICE_CONFIRMED_REINITIALIZE_DEVICE, (int) rd_data.state,
&Handler_Transmit_Buffer[pdu_len], service_data->invoke_id);
if (len > 0)
goto RD_ABORT;
#endif
if (Device_Reinitialize(&rd_data)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_REINITIALIZE_DEVICE);
#if PRINT_ENABLED
fprintf(stderr, "ReinitializeDevice: Sending Simple Ack!\n");
#endif
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_REINITIALIZE_DEVICE,
rd_data.error_class, rd_data.error_code);
#if PRINT_ENABLED
fprintf(stderr, "ReinitializeDevice: Sending Error.\n");
#endif
}
}
RD_ABORT:
pdu_len += len;
len =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
if (len <= 0) {
#if PRINT_ENABLED
fprintf(stderr, "ReinitializeDevice: Failed to send PDU (%s)!\n",
strerror(errno));
#endif
}
return;
}
void handler_conf_private_trans(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_PRIVATE_TRANSFER_DATA data;
int len;
int pdu_len;
bool error;
int bytes_sent;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
BACNET_ERROR_CLASS error_class;
BACNET_ERROR_CODE error_code;
len = 0;
pdu_len = 0;
error = false;
bytes_sent = 0;
error_class = ERROR_CLASS_OBJECT;
error_code = ERROR_CODE_UNKNOWN_OBJECT;
#if PRINT_ENABLED
fprintf(stderr, "Received Confirmed Private Transfer Request!\n");
#endif
/* encode the NPDU portion of the response packet as it will be needed */
/* no matter what the outcome. */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr, "CPT: Segmented Message. Sending Abort!\n");
#endif
goto CPT_ABORT;
}
len =
ptransfer_decode_service_request(service_request, service_len, &data);
/* bad decoding - send an abort */
if (len < 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "CPT: Bad Encoding. Sending Abort!\n");
#endif
goto CPT_ABORT;
}
/* Simple example with service number of 0 for
read block and 1 for write block
We also only support our own vendor ID.
In theory we could support others
for compatability purposes but these
interfaces are rarely documented... */
if ((data.vendorID == BACNET_VENDOR_ID) &&
(data.serviceNumber <= MY_SVC_WRITE)) {
/* We only try to understand our own IDs and service numbers */
/* Will either return a result block or an app level status block */
ProcessPT(&data);
if (data.serviceParametersLen == 0) {
/* No respopnse means fatal error */
error = true;
error_class = ERROR_CLASS_SERVICES;
error_code = ERROR_CODE_OTHER;
#if PRINT_ENABLED
fprintf(stderr, "CPT: Error servicing request!\n");
#endif
}
len =
ptransfer_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, &data);
} else { /* Not our vendor ID or bad service parameter */
error = true;
error_class = ERROR_CLASS_SERVICES;
error_code = ERROR_CODE_OPTIONAL_FUNCTIONALITY_NOT_SUPPORTED;
#if PRINT_ENABLED
fprintf(stderr, "CPT: Not our Vendor ID or invalid service code!\n");
#endif
}
if (error) {
len =
ptransfer_error_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, error_class, error_code, &data);
}
CPT_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
}
#endif
return;
}
/* returns invoke id of 0 if device is not bound or no tsm available */
uint8_t Send_ReadRange_Request(
uint32_t device_id, /* destination device */
BACNET_READ_RANGE_DATA * read_access_data)
{
BACNET_ADDRESS dest;
BACNET_ADDRESS my_address;
unsigned max_apdu = 0;
uint8_t invoke_id = 0;
bool status = false;
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
if (!dcc_communication_enabled())
return 0;
/* is the device bound? */
status = address_get_by_device(device_id, &max_apdu, &dest);
/* is there a tsm available? */
if (status)
invoke_id = tsm_next_free_invokeID();
if (invoke_id) {
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], &dest, &my_address,
&npdu_data);
/* encode the APDU portion of the packet */
len =
rr_encode_apdu(&Handler_Transmit_Buffer[pdu_len], invoke_id,
read_access_data);
if (len <= 0) {
return 0;
}
pdu_len += len;
/* is it small enough for the the destination to receive?
note: if there is a bottleneck router in between
us and the destination, we won't know unless
we have a way to check for that and update the
max_apdu in the address binding table. */
if ((unsigned) pdu_len < max_apdu) {
tsm_set_confirmed_unsegmented_transaction(invoke_id, &dest,
&npdu_data, &Handler_Transmit_Buffer[0], (uint16_t) pdu_len);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send ReadRange Request (%s)!\n",
strerror(errno));
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send ReadRange Request (exceeds destination maximum APDU)!\n");
#endif
}
}
return invoke_id;
}
int BacnetTimeSync(
int deviceInstanceNumber,
int year,
int month,
int day,
int hour,
int minute,
int second,
int isUTC,
int UTCOffset)
{
BACNET_DATE bdate;
BACNET_TIME btime;
struct tm my_time;
time_t aTime;
struct tm *newTime;
my_time.tm_sec = second;
my_time.tm_min = minute;
my_time.tm_hour = hour;
my_time.tm_mday = day;
my_time.tm_mon = month - 1;
my_time.tm_year = year - 1900;
my_time.tm_wday = 0; /* does not matter */
my_time.tm_yday = 0; /* does not matter */
my_time.tm_isdst = 0; /* does not matter */
aTime = mktime(&my_time);
newTime = localtime(&aTime);
bdate.year = newTime->tm_year;
bdate.month = newTime->tm_mon + 1;
bdate.day = newTime->tm_mday;
bdate.wday = newTime->tm_wday ? newTime->tm_wday : 7;
btime.hour = newTime->tm_hour;
btime.min = newTime->tm_min;
btime.sec = newTime->tm_sec;
btime.hundredths = 0;
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
uint8_t Handler_Transmit_Buffer[MAX_PDU] = { 0 };
/* Loop for eary exit */
do {
if (!dcc_communication_enabled()) {
LogError("DCC communicaiton is not enabled");
break;
}
/* encode the NPDU portion of the packet */
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
datalink_get_my_address(&my_address);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], &Target_Address,
&my_address, &npdu_data);
/* encode the APDU portion of the packet */
len =
timesync_encode_apdu(&Handler_Transmit_Buffer[pdu_len], &bdate,
&btime);
pdu_len += len;
/* send it out the datalink */
bytes_sent =
datalink_send_pdu(&Target_Address, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
if (bytes_sent <= 0) {
char errorMsg[64];
sprintf(errorMsg,
"Failed to Send Time-Synchronization Request (%s)!",
strerror(errno));
LogError(errorMsg);
break;
}
Wait_For_Answer_Or_Timeout(100, waitAnswer);
} while (false);
int isFailure = Error_Detected;
Error_Detected = 0;
return isFailure;
}
void handler_atomic_read_file(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_ATOMIC_READ_FILE_DATA data;
int len = 0;
int pdu_len = 0;
bool error = false;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
#if PRINT_ENABLED
fprintf(stderr, "Received Atomic-Read-File Request!\n");
#endif
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr, "ARF: Segmented Message. Sending Abort!\n");
#endif
goto ARF_ABORT;
}
len = arf_decode_service_request(service_request, service_len, &data);
/* bad decoding - send an abort */
if (len < 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "Bad Encoding. Sending Abort!\n");
#endif
goto ARF_ABORT;
}
if (data.object_type == OBJECT_FILE) {
if (!bacfile_valid_instance(data.object_instance)) {
error = true;
} else if (data.access == FILE_STREAM_ACCESS) {
if (data.type.stream.requestedOctetCount <
octetstring_capacity(&data.fileData[0])) {
if (bacfile_read_stream_data(&data)) {
#if PRINT_ENABLED
fprintf(stderr, "ARF: Stream offset %d, %d octets.\n",
data.type.stream.fileStartPosition,
data.type.stream.requestedOctetCount);
#endif
len =
arf_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, &data);
} else {
error = true;
error_class = ERROR_CLASS_OBJECT;
error_code = ERROR_CODE_FILE_ACCESS_DENIED;
}
} else {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
#if PRINT_ENABLED
fprintf(stderr, "Too Big To Send (%d >= %d). Sending Abort!\n",
data.type.stream.requestedOctetCount,
octetstring_capacity(&data.fileData[0]));
#endif
}
} else if (data.access == FILE_RECORD_ACCESS) {
if (data.type.record.fileStartRecord >=
BACNET_READ_FILE_RECORD_COUNT) {
error_class = ERROR_CLASS_SERVICES;
error_code = ERROR_CODE_INVALID_FILE_START_POSITION;
error = true;
} else if (bacfile_read_stream_data(&data)) {
#if PRINT_ENABLED
fprintf(stderr, "ARF: fileStartRecord %d, %u RecordCount.\n",
data.type.record.fileStartRecord,
data.type.record.RecordCount);
#endif
len =
arf_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, &data);
} else {
error = true;
error_class = ERROR_CLASS_OBJECT;
error_code = ERROR_CODE_FILE_ACCESS_DENIED;
}
} else {
error = true;
error_class = ERROR_CLASS_SERVICES;
error_code = ERROR_CODE_INVALID_FILE_ACCESS_METHOD;
#if PRINT_ENABLED
fprintf(stderr, "Record Access Requested. Sending Error!\n");
#endif
}
} else {
error = true;
error_class = ERROR_CLASS_SERVICES;
error_code = ERROR_CODE_INCONSISTENT_OBJECT_TYPE;
}
if (error) {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_ATOMIC_READ_FILE,
error_class, error_code);
}
ARF_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
}
#endif
return;
}
void handler_read_property_ack2(
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_ACK_DATA * service_ack_data,
uint8_t * apdu,
uint16_t apdu_len)
{
BACNET_READ_PROPERTY_DATA rpdata;
int len = 0;
int pdu_len = 0;
int npdu_len = -1;
BACNET_NPDU_DATA npdu_data;
bool error = true; /* assume that there is an error */
int bytes_sent = 0;
BACNET_ADDRESS my_address;
fprintf(stderr, "Entering handler_RP2 in h_rp.c.\n");
/* configure default error code as an abort since it is common */
rpdata.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
/* encode the NPDU portion of the packet */
/* returns my IP addr (4 bytes) and port num (2bytes)*/
datalink_get_my_address(&my_address);
//set up NPCI header field npdu_data
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
npdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer_ACK[0], src, &my_address,//src!!
&npdu_data);//set up handler transmit buffer by injecting npci/src/dst addr info
if (service_ack_data->segmented_message) {
/* we don't support segmentation - send an abort */
len = BACNET_STATUS_ABORT;
#if PRINT_ENABLED
fprintf(stderr, "RP: Segmented message. Sending Abort!\n");
#endif
goto RP_FAILURE;
}
int i;
for (i = 0; i < apdu_len; ++i){
Handler_Transmit_Buffer_ACK[npdu_len + i] = apdu[i];
}
fprintf(stderr, "Finish copying apdu to ack buffer in h_rp.c.\n");
RP_FAILURE:
if (error) {
if (len == BACNET_STATUS_ABORT) {
apdu_len =
abort_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_ack_data->invoke_id,
abort_convert_error_code(rpdata.error_code), true);
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Abort!\n");
#endif
} else if (len == BACNET_STATUS_ERROR) {
apdu_len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_ack_data->invoke_id, SERVICE_CONFIRMED_READ_PROPERTY,
rpdata.error_class, rpdata.error_code);
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Error!\n");
#endif
} else if (len == BACNET_STATUS_REJECT) {
apdu_len =
reject_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_ack_data->invoke_id,
reject_convert_error_code(rpdata.error_code));
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Reject!\n");
#endif
}
}
pdu_len = npdu_len + apdu_len;
bytes_sent =
datalink_send_pdu(rp_serv_addr, &npdu_data, &Handler_Transmit_Buffer_ACK[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
}else{
fprintf(stderr, "sent pdu back to server in h_rp.c.\n");
}
#else
bytes_sent = bytes_sent;
#endif
return;
}
/** Handler for a Device Communication Control (DCC) request.
* @ingroup DMDCC
* This handler will be invoked by apdu_handler() if it has been enabled
* by a call to apdu_set_confirmed_handler().
* This handler builds a response packet, which is
* - an Abort if
* - the message is segmented
* - if decoding fails
* - if not a known DCC state
* - an Error if the DCC password is incorrect
* - else tries to send a simple ACK for the DCC on success,
* and sets the DCC state requested.
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
void handler_device_communication_control(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
uint16_t timeDuration = 0;
BACNET_COMMUNICATION_ENABLE_DISABLE state = COMMUNICATION_ENABLE;
BACNET_CHARACTER_STRING password;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the reply packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
#if PRINT_ENABLED
fprintf(stderr, "DeviceCommunicationControl!\n");
#endif
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr,
"DeviceCommunicationControl: "
"Sending Abort - segmented message.\n");
#endif
goto DCC_ABORT;
}
/* decode the service request only */
len =
dcc_decode_service_request(service_request, service_len, &timeDuration,
&state, &password);
#if PRINT_ENABLED
if (len > 0)
fprintf(stderr,
"DeviceCommunicationControl: " "timeout=%u state=%u password=%s\n",
(unsigned) timeDuration, (unsigned) state,
characterstring_value(&password));
#endif
/* bad decoding or something we didn't understand - send an abort */
if (len < 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr,
"DeviceCommunicationControl: "
"Sending Abort - could not decode.\n");
#endif
goto DCC_ABORT;
}
if (state >= MAX_BACNET_COMMUNICATION_ENABLE_DISABLE) {
len =
reject_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, REJECT_REASON_UNDEFINED_ENUMERATION);
#if PRINT_ENABLED
fprintf(stderr,
"DeviceCommunicationControl: "
"Sending Reject - undefined enumeration\n");
#endif
} else {
#if BAC_ROUTING
/* Check to see if the current Device supports this service. */
len =
Routed_Device_Service_Approval
(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL, (int) state,
&Handler_Transmit_Buffer[pdu_len], service_data->invoke_id);
if (len > 0)
goto DCC_ABORT;
#endif
if (characterstring_ansi_same(&password, My_Password)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL);
#if PRINT_ENABLED
fprintf(stderr,
"DeviceCommunicationControl: " "Sending Simple Ack!\n");
#endif
dcc_set_status_duration(state, timeDuration);
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
ERROR_CLASS_SECURITY, ERROR_CODE_PASSWORD_FAILURE);
#if PRINT_ENABLED
fprintf(stderr,
"DeviceCommunicationControl: "
"Sending Error - password failure.\n");
#endif
}
}
DCC_ABORT:
pdu_len += len;
len =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
if (len <= 0) {
#if PRINT_ENABLED
fprintf(stderr,
"DeviceCommunicationControl: " "Failed to send PDU (%s)!\n",
strerror(errno));
#endif
}
return;
}
void handler_write_property(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto WP_ABORT;
}
/* decode the service request only */
len = wp_decode_service_request(service_request, service_len, &wp_data);
/* bad decoding or something we didn't understand - send an abort */
if (len <= 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
goto WP_ABORT;
}
switch (wp_data.object_type) {
case OBJECT_DEVICE:
if (Device_Write_Property(&wp_data, &error_class, &error_code)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY);
#if PRINT_ENABLED
fprintf(stderr,
"Sending Write Property Simple Ack for Device!\n");
#endif
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
error_class, error_code);
#if PRINT_ENABLED
fprintf(stderr, "Sending Write Property Error for Device!\n");
#endif
}
break;
case OBJECT_ANALOG_INPUT:
case OBJECT_BINARY_INPUT:
error_class = ERROR_CLASS_PROPERTY;
error_code = ERROR_CODE_WRITE_ACCESS_DENIED;
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
error_class, error_code);
#if PRINT_ENABLED
fprintf(stderr, "Sending Write Access Error!\n");
#endif
break;
case OBJECT_BINARY_VALUE:
if (Binary_Value_Write_Property(&wp_data, &error_class,
&error_code)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY);
#if PRINT_ENABLED
fprintf(stderr, "Sending Write Property Simple Ack for BV!\n");
#endif
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
error_class, error_code);
#if PRINT_ENABLED
fprintf(stderr, "Sending Write Access Error for BV!\n");
#endif
}
break;
case OBJECT_ANALOG_VALUE:
if (Analog_Value_Write_Property(&wp_data, &error_class,
&error_code)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY);
#if PRINT_ENABLED
fprintf(stderr, "Sending Write Property Simple Ack for AV!\n");
#endif
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
error_class, error_code);
#if PRINT_ENABLED
fprintf(stderr, "Sending Write Access Error for AV!\n");
#endif
}
break;
default:
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
error_class, error_code);
#if PRINT_ENABLED
fprintf(stderr, "Sending Unknown Object Error!\n");
#endif
break;
}
WP_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
#endif
return;
}
/** Handler for a ReadProperty Service request.
* @ingroup DSRP
* This handler will be invoked by apdu_handler() if it has been enabled
* by a call to apdu_set_confirmed_handler().
* This handler builds a response packet, which is
* - an Abort if
* - the message is segmented
* - if decoding fails
* - if the response would be too large
* - the result from Device_Read_Property(), if it succeeds
* - an Error if Device_Read_Property() fails
* or there isn't enough room in the APDU to fit the data.
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
void handler_read_property(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_READ_PROPERTY_DATA rpdata;
int len = 0;
int pdu_len = 0;
int apdu_len = -1;
int npdu_len = -1;
BACNET_NPDU_DATA npdu_data;
bool error = true; /* assume that there is an error */
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* configure default error code as an abort since it is common */
rpdata.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
/* 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 (service_data->segmented_message) {
/* we don't support segmentation - send an abort */
len = BACNET_STATUS_ABORT;
#if PRINT_ENABLED
fprintf(stderr, "RP: Segmented message. Sending Abort!\n");
#endif
goto RP_FAILURE;
}
len = rp_decode_service_request(service_request, service_len, &rpdata);
#if PRINT_ENABLED
if (len <= 0) {
fprintf(stderr, "RP: Unable to decode Request!\n");
}
#endif
if (len < 0) {
/* bad decoding - skip to error/reject/abort handling */
error = true;
#if PRINT_ENABLED
fprintf(stderr, "RP: Bad Encoding.\n");
#endif
goto RP_FAILURE;
}
/* Test for case of indefinite Device object instance */
if ((rpdata.object_type == OBJECT_DEVICE) &&
(rpdata.object_instance == BACNET_MAX_INSTANCE)) {
rpdata.object_instance = Device_Object_Instance_Number();
}
apdu_len =
rp_ack_encode_apdu_init(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id, &rpdata);
/* configure our storage */
rpdata.application_data = &Handler_Transmit_Buffer[npdu_len + apdu_len];
rpdata.application_data_len =
sizeof(Handler_Transmit_Buffer) - (npdu_len + apdu_len);
len = Device_Read_Property(&rpdata);
if (len >= 0) {
apdu_len += len;
len =
rp_ack_encode_apdu_object_property_end(&Handler_Transmit_Buffer
[npdu_len + apdu_len]);
apdu_len += len;
if (apdu_len > service_data->max_resp) {
/* too big for the sender - send an abort
* Setting of error code needed here as read property processing may
* have overriden the default set at start */
rpdata.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
len = BACNET_STATUS_ABORT;
#if PRINT_ENABLED
fprintf(stderr, "RP: Message too large.\n");
#endif
} else {
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Ack!\n");
#endif
error = false;
}
} else {
#if PRINT_ENABLED
fprintf(stderr, "RP: Device_Read_Property: ");
if (len == BACNET_STATUS_ABORT) {
fprintf(stderr, "Abort!\n");
} else if (len == BACNET_STATUS_ERROR) {
fprintf(stderr, "Error!\n");
} else if (len == BACNET_STATUS_REJECT) {
fprintf(stderr, "Reject!\n");
} else {
fprintf(stderr, "Unknown Len=%d\n", len);
}
#endif
}
RP_FAILURE:
if (error) {
if (len == BACNET_STATUS_ABORT) {
apdu_len =
abort_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
abort_convert_error_code(rpdata.error_code), true);
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Abort!\n");
#endif
} else if (len == BACNET_STATUS_ERROR) {
apdu_len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_READ_PROPERTY,
rpdata.error_class, rpdata.error_code);
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Error!\n");
#endif
} else if (len == BACNET_STATUS_REJECT) {
apdu_len =
reject_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
reject_convert_error_code(rpdata.error_code));
#if PRINT_ENABLED
fprintf(stderr, "RP: Sending Reject!\n");
#endif
}
}
pdu_len = npdu_len + apdu_len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
}
#else
bytes_sent = bytes_sent;
#endif
return;
}
void handler_read_property(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_READ_PROPERTY_DATA data;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
bool error = false;
int bytes_sent = 0;
BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
/* we don't support segmentation - send an abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto RP_ABORT;
}
len = rp_decode_service_request(service_request, service_len, &data);
if (len < 0) {
/* bad decoding - send an abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
goto RP_ABORT;
}
/* most cases will be error */
error = true;
len =
Encode_Property_APDU(&Temp_Buf[0], data.object_type,
data.object_instance, data.object_property, data.array_index,
&error_class, &error_code);
if (len >= 0) {
/* encode the APDU portion of the packet */
data.application_data = &Temp_Buf[0];
data.application_data_len = len;
/* FIXME: probably need a length limitation sent with encode */
len =
rp_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, &data);
error = false;
}
if (error) {
if (len == -2) {
/* BACnet APDU too small to fit data, so proper response is Abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
goto RP_ABORT;
}
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_READ_PROPERTY,
error_class, error_code);
}
RP_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
return;
}
/** Handler for an Confirmed COV Notification.
* @ingroup DSCOV
* Decodes the received list of Properties to update,
* and print them out with the subscription information.
* @note Nothing is specified in BACnet about what to do with the
* information received from Confirmed COV Notifications.
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
void handler_ccov_notification(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_NPDU_DATA npdu_data;
BACNET_COV_DATA cov_data;
BACNET_PROPERTY_VALUE property_value[MAX_COV_PROPERTIES];
BACNET_PROPERTY_VALUE *pProperty_value = NULL;
unsigned index = 0;
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* create linked list to store data if more
than one property value is expected */
pProperty_value = &property_value[0];
while (pProperty_value) {
index++;
if (index < MAX_COV_PROPERTIES) {
pProperty_value->next = &property_value[index];
} else {
pProperty_value->next = NULL;
}
pProperty_value = pProperty_value->next;
}
cov_data.listOfValues = &property_value[0];
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
#if PRINT_ENABLED
fprintf(stderr, "CCOV: Received Notification!\n");
#endif
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr, "CCOV: Segmented message. Sending Abort!\n");
#endif
goto CCOV_ABORT;
}
/* decode the service request only */
len =
cov_notify_decode_service_request(service_request, service_len,
&cov_data);
#if PRINT_ENABLED
if (len > 0) {
fprintf(stderr, "CCOV: PID=%u ", cov_data.subscriberProcessIdentifier);
fprintf(stderr, "instance=%u ", cov_data.initiatingDeviceIdentifier);
fprintf(stderr, "%s %u ",
bactext_object_type_name(cov_data.monitoredObjectIdentifier.type),
cov_data.monitoredObjectIdentifier.instance);
fprintf(stderr, "time remaining=%u seconds ", cov_data.timeRemaining);
fprintf(stderr, "\n");
pProperty_value = &property_value[0];
while (pProperty_value) {
fprintf(stderr, "CCOV: ");
if (pProperty_value->propertyIdentifier < 512) {
fprintf(stderr, "%s ",
bactext_property_name
(pProperty_value->propertyIdentifier));
} else {
fprintf(stderr, "proprietary %u ",
pProperty_value->propertyIdentifier);
}
if (pProperty_value->propertyArrayIndex != BACNET_ARRAY_ALL) {
fprintf(stderr, "%u ", pProperty_value->propertyArrayIndex);
}
fprintf(stderr, "\n");
pProperty_value = pProperty_value->next;
}
}
#endif
/* bad decoding or something we didn't understand - send an abort */
if (len <= 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "CCOV: Bad Encoding. Sending Abort!\n");
#endif
goto CCOV_ABORT;
} else {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_COV_NOTIFICATION);
#if PRINT_ENABLED
fprintf(stderr, "CCOV: Sending Simple Ack!\n");
#endif
}
CCOV_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "CCOV: Failed to send PDU (%s)!\n", strerror(errno));
}
#else
bytes_sent = bytes_sent;
#endif
return;
}
void handler_reinitialize_device(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_REINITIALIZED_STATE state;
BACNET_CHARACTER_STRING their_password;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
goto RD_ABORT;
}
/* decode the service request only */
len =
rd_decode_service_request(service_request, service_len, &state,
&their_password);
/* bad decoding or something we didn't understand - send an abort */
if (len < 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
goto RD_ABORT;
}
/* check the data from the request */
if (state >= MAX_BACNET_REINITIALIZED_STATE) {
len =
reject_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, REJECT_REASON_UNDEFINED_ENUMERATION);
} else {
characterstring_init_ansi(&My_Password, Password);
if (characterstring_same(&their_password, &My_Password)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_REINITIALIZE_DEVICE);
/* FIXME: now you can reboot, restart, quit, or something clever */
/* Note: you can use a mix of state and password to do specific stuff */
/* Note: if you don't do something clever like actually restart,
you probably should clear any DCC status and timeouts */
/* Note: you probably need to send the reply BEFORE restarting */
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_REINITIALIZE_DEVICE,
ERROR_CLASS_SERVICES, ERROR_CODE_PASSWORD_FAILURE);
}
}
RD_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
return;
}
/** returns the invoke ID for confirmed request, or zero on failure */
uint8_t Send_Write_Property_Request_Data(
BACNET_ADDRESS * dest,
uint16_t max_apdu,
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance,
BACNET_PROPERTY_ID object_property,
uint8_t * application_data,
int application_data_len,
uint8_t priority,
uint32_t array_index)
{
BACNET_ADDRESS my_address;
uint8_t invoke_id = 0;
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_WRITE_PROPERTY_DATA data;
BACNET_NPDU_DATA npdu_data;
if (!dcc_communication_enabled())
return 0;
/* is there a tsm available? */
invoke_id = tsm_next_free_invokeID();
if (invoke_id) {
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], dest, &my_address,
&npdu_data);
/* encode the APDU portion of the packet */
data.object_type = object_type;
data.object_instance = object_instance;
data.object_property = object_property;
data.array_index = array_index;
data.application_data_len = application_data_len;
memcpy(&data.application_data[0], &application_data[0],
application_data_len);
data.priority = priority;
len =
wp_encode_apdu(&Handler_Transmit_Buffer[pdu_len], invoke_id,
&data);
pdu_len += len;
/* will it fit in the sender?
note: if there is a bottleneck router in between
us and the destination, we won't know unless
we have a way to check for that and update the
max_apdu in the address binding table. */
if (pdu_len < max_apdu) {
tsm_set_confirmed_unsegmented_transaction(invoke_id, dest,
&npdu_data, &Handler_Transmit_Buffer[0], (uint16_t) pdu_len);
bytes_sent =
datalink_send_pdu(dest, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send WriteProperty Request (%s)!\n",
strerror(errno));
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send WriteProperty Request "
"(exceeds destination maximum APDU)!\n");
#endif
}
} else {
#if PRINT_ENABLED
fprintf(stderr,
"Ran out of invoke ids!\n");
#endif
}
return invoke_id;
}
void handler_write_property(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ERROR_CLASS error_class = ERROR_CLASS_OBJECT;
BACNET_ERROR_CODE error_code = ERROR_CODE_UNKNOWN_OBJECT;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* decode the service request only */
len = wp_decode_service_request(service_request, service_len, &wp_data);
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
/* bad decoding or something we didn't understand - send an abort */
if (len <= 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
} else if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
} else {
switch (wp_data.object_type) {
case OBJECT_DEVICE:
if (Device_Write_Property(&wp_data, &error_class, &error_code)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_WRITE_PROPERTY);
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_WRITE_PROPERTY, error_class,
error_code);
}
break;
case OBJECT_ANALOG_VALUE:
if (Analog_Value_Write_Property(&wp_data, &error_class,
&error_code)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_WRITE_PROPERTY);
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_WRITE_PROPERTY, error_class,
error_code);
}
break;
case OBJECT_BINARY_VALUE:
if (Binary_Value_Write_Property(&wp_data, &error_class,
&error_code)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_WRITE_PROPERTY);
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
SERVICE_CONFIRMED_WRITE_PROPERTY, error_class,
error_code);
}
break;
default:
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
error_class, error_code);
break;
}
}
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
return;
}
/** Handler for a WriteProperty Service request.
* @ingroup DSWP
* This handler will be invoked by apdu_handler() if it has been enabled
* by a call to apdu_set_confirmed_handler().
* This handler builds a response packet, which is
* - an Abort if
* - the message is segmented
* - if decoding fails
* - an ACK if Device_Write_Property() succeeds
* - an Error if Device_Write_Property() fails
* or there isn't enough room in the APDU to fit the data.
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
void handler_write_property(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_WRITE_PROPERTY_DATA wp_data;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
#if PRINT_ENABLED
fprintf(stderr, "WP: Received Request!\n");
#endif
if (service_data->segmented_message) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr, "WP: Segmented message. Sending Abort!\n");
#endif
goto WP_ABORT;
} /* decode the service request only */
len = wp_decode_service_request(service_request, service_len, &wp_data);
#if PRINT_ENABLED
if (len > 0)
fprintf(stderr,
"WP: type=%lu instance=%lu property=%lu priority=%lu index=%ld\n",
(unsigned long) wp_data.object_type,
(unsigned long) wp_data.object_instance,
(unsigned long) wp_data.object_property,
(unsigned long) wp_data.priority, (long) wp_data.array_index);
else
fprintf(stderr, "WP: Unable to decode Request!\n");
#endif
/* bad decoding or something we didn't understand - send an abort */
if (len <= 0) {
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "WP: Bad Encoding. Sending Abort!\n");
#endif
goto WP_ABORT;
}
if (Device_Write_Property(&wp_data)) {
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY);
#if PRINT_ENABLED
fprintf(stderr, "WP: Sending Simple Ack!\n");
#endif
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_WRITE_PROPERTY,
wp_data.error_class, wp_data.error_code);
#if PRINT_ENABLED
fprintf(stderr, "WP: Sending Error!\n");
#endif
}
WP_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "WP: Failed to send PDU (%s)!\n", strerror(errno));
}
#else
bytes_sent = bytes_sent;
#endif
return;
}
void handler_lso(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_LSO_DATA data;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
/* we don't support segmentation - send an abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr, "LSO: Segmented message. Sending Abort!\n");
#endif
goto LSO_ABORT;
}
len = lso_decode_service_request(service_request, service_len, &data);
#if PRINT_ENABLED
if (len <= 0)
fprintf(stderr, "LSO: Unable to decode Request!\n");
#endif
if (len < 0) {
/* bad decoding - send an abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "LSO: Bad Encoding. Sending Abort!\n");
#endif
goto LSO_ABORT;
}
/*
** Process Life Safety Operation Here
*/
#if PRINT_ENABLED
fprintf(stderr,
"Life Safety Operation: Received operation %d from process id %d for object %id\n",
data.operation, data.processId, data.targetObject.instance);
#endif
len =
encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_LIFE_SAFETY_OPERATION);
#if PRINT_ENABLED
fprintf(stderr, "Life Safety Operation: " "Sending Simple Ack!\n");
#endif
LSO_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Life Safety Operation: " "Failed to send PDU (%s)!\n",
strerror(errno));
#endif
return;
}
void handler_read_range(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_READ_RANGE_DATA data;
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
bool error = false;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
data.error_class = ERROR_CLASS_OBJECT;
data.error_code = ERROR_CODE_UNKNOWN_OBJECT;
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], src, &my_address,
&npdu_data);
if (service_data->segmented_message) {
/* we don't support segmentation - send an abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_SEGMENTATION_NOT_SUPPORTED,
true);
#if PRINT_ENABLED
fprintf(stderr, "RR: Segmented message. Sending Abort!\n");
#endif
goto RR_ABORT;
}
memset(&data, 0, sizeof(data)); /* start with blank canvas */
len = rr_decode_service_request(service_request, service_len, &data);
#if PRINT_ENABLED
if (len <= 0)
fprintf(stderr, "RR: Unable to decode Request!\n");
#endif
if (len < 0) {
/* bad decoding - send an abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, ABORT_REASON_OTHER, true);
#if PRINT_ENABLED
fprintf(stderr, "RR: Bad Encoding. Sending Abort!\n");
#endif
goto RR_ABORT;
}
/* assume that there is an error */
error = true;
len = Encode_RR_payload(&Temp_Buf[0], &data);
if (len >= 0) {
/* encode the APDU portion of the packet */
data.application_data = &Temp_Buf[0];
data.application_data_len = len;
/* FIXME: probably need a length limitation sent with encode */
len =
rr_ack_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, &data);
#if PRINT_ENABLED
fprintf(stderr, "RR: Sending Ack!\n");
#endif
error = false;
}
if (error) {
if (len == -2) {
/* BACnet APDU too small to fit data, so proper response is Abort */
len =
abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id,
ABORT_REASON_SEGMENTATION_NOT_SUPPORTED, true);
#if PRINT_ENABLED
fprintf(stderr, "RR: Reply too big to fit into APDU!\n");
#endif
} else {
len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_READ_RANGE,
data.error_class, data.error_code);
#if PRINT_ENABLED
fprintf(stderr, "RR: Sending Error!\n");
#endif
}
}
RR_ABORT:
pdu_len += len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to send PDU (%s)!\n", strerror(errno));
#endif
return;
}
uint8_t Send_Atomic_Write_File_Stream(
uint32_t device_id,
uint32_t file_instance,
int fileStartPosition,
BACNET_OCTET_STRING * fileData)
{
BACNET_ADDRESS dest;
BACNET_ADDRESS my_address;
BACNET_NPDU_DATA npdu_data;
unsigned max_apdu = 0;
uint8_t invoke_id = 0;
bool status = false;
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_ATOMIC_WRITE_FILE_DATA data;
/* if we are forbidden to send, don't send! */
if (!dcc_communication_enabled())
return 0;
/* is the device bound? */
status = address_get_by_device(device_id, &max_apdu, &dest);
/* is there a tsm available? */
if (status)
invoke_id = tsm_next_free_invokeID();
if (invoke_id) {
/* load the data for the encoding */
data.object_type = OBJECT_FILE;
data.object_instance = file_instance;
data.access = FILE_STREAM_ACCESS;
data.type.stream.fileStartPosition = fileStartPosition;
status = octetstring_copy(&data.fileData[0], fileData);
if (status) {
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], &dest,
&my_address, &npdu_data);
/* encode the APDU portion of the packet */
len =
awf_encode_apdu(&Handler_Transmit_Buffer[pdu_len], invoke_id,
&data);
pdu_len += len;
/* will the APDU fit the target device?
note: if there is a bottleneck router in between
us and the destination, we won't know unless
we have a way to check for that and update the
max_apdu in the address binding table. */
if ((unsigned) pdu_len <= max_apdu) {
tsm_set_confirmed_unsegmented_transaction(invoke_id, &dest,
&npdu_data, &Handler_Transmit_Buffer[0],
(uint16_t) pdu_len);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr,
"Failed to Send AtomicWriteFile Request (%s)!\n",
strerror(errno));
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send AtomicWriteFile Request "
"(payload [%d] exceeds destination maximum APDU [%u])!\n",
pdu_len, max_apdu);
#endif
}
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send AtomicWriteFile Request "
"(payload [%d] exceeds octet string capacity)!\n", pdu_len);
#endif
}
}
return invoke_id;
}
/** Handler for a ReadPropertyMultiple Service request.
* @ingroup DSRPM
* This handler will be invoked by apdu_handler() if it has been enabled
* by a call to apdu_set_confirmed_handler().
* This handler builds a response packet, which is
* - an Abort if
* - the message is segmented
* - if decoding fails
* - if the response would be too large
* - the result from each included read request, if it succeeds
* - an Error if processing fails for all, or individual errors if only some fail,
* or there isn't enough room in the APDU to fit the data.
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
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;
uint16_t copy_len = 0;
uint16_t decode_len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
int bytes_sent;
BACNET_ADDRESS my_address;
BACNET_RPM_DATA rpmdata;
int apdu_len = 0;
int npdu_len = 0;
int error = 0;
/* jps_debug - see if we are utilizing all the buffer */
/* memset(&Handler_Transmit_Buffer[0], 0xff, sizeof(Handler_Transmit_Buffer)); */
/* 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 (service_data->segmented_message) {
rpmdata.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
error = BACNET_STATUS_ABORT;
#if PRINT_ENABLED
fprintf(stderr, "RPM: Segmented message. Sending Abort!\r\n");
#endif
goto RPM_FAILURE;
}
/* 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);
for (;;) {
/* Start by looking for an object ID */
len =
rpm_decode_object_id(&service_request[decode_len],
service_len - decode_len, &rpmdata);
if (len >= 0) {
/* Got one so skip to next stage */
decode_len += len;
} else {
/* bad encoding - skip to error/reject/abort handling */
#if PRINT_ENABLED
fprintf(stderr, "RPM: Bad Encoding.\n");
#endif
error = len;
goto RPM_FAILURE;
}
/* Test for case of indefinite Device object instance */
if ((rpmdata.object_type == OBJECT_DEVICE) &&
(rpmdata.object_instance == BACNET_MAX_INSTANCE)) {
rpmdata.object_instance = Device_Object_Instance_Number();
}
/* Stick this object id into the reply - if it will fit */
len = rpm_ack_encode_apdu_object_begin(&Temp_Buf[0], &rpmdata);
copy_len =
memcopy(&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0], apdu_len,
len, MAX_APDU);
if (copy_len == 0) {
#if PRINT_ENABLED
fprintf(stderr, "RPM: Response too big!\r\n");
#endif
rpmdata.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
error = BACNET_STATUS_ABORT;
goto RPM_FAILURE;
}
apdu_len += copy_len;
/* do each property of this object of the RPM request */
for (;;) {
/* Fetch a property */
len =
rpm_decode_object_property(&service_request[decode_len],
service_len - decode_len, &rpmdata);
if (len < 0) {
/* bad encoding - skip to error/reject/abort handling */
#if PRINT_ENABLED
fprintf(stderr, "RPM: Bad Encoding.\n");
#endif
error = len;
goto RPM_FAILURE;
}
decode_len += len;
/* handle the special properties */
if ((rpmdata.object_property == PROP_ALL) ||
(rpmdata.object_property == PROP_REQUIRED) ||
(rpmdata.object_property == PROP_OPTIONAL)) {
struct special_property_list_t property_list;
unsigned property_count = 0;
unsigned index = 0;
BACNET_PROPERTY_ID special_object_property;
if (rpmdata.array_index != BACNET_ARRAY_ALL) {
/* No array index options for this special property.
Encode error for this object property response */
len =
rpm_ack_encode_apdu_object_property(&Temp_Buf[0],
rpmdata.object_property, rpmdata.array_index);
copy_len =
memcopy(&Handler_Transmit_Buffer[npdu_len],
&Temp_Buf[0], apdu_len, len, MAX_APDU);
if (copy_len == 0) {
#if PRINT_ENABLED
fprintf(stderr,
"RPM: Too full to encode property!\r\n");
#endif
rpmdata.error_code =
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
error = BACNET_STATUS_ABORT;
goto RPM_FAILURE;
}
apdu_len += len;
len =
rpm_ack_encode_apdu_object_property_error(&Temp_Buf[0],
ERROR_CLASS_PROPERTY,
ERROR_CODE_PROPERTY_IS_NOT_AN_ARRAY);
copy_len =
memcopy(&Handler_Transmit_Buffer[npdu_len],
&Temp_Buf[0], apdu_len, len, MAX_APDU);
if (copy_len == 0) {
#if PRINT_ENABLED
fprintf(stderr, "RPM: Too full to encode error!\r\n");
#endif
rpmdata.error_code =
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
error = BACNET_STATUS_ABORT;
goto RPM_FAILURE;
}
apdu_len += len;
} else {
special_object_property = rpmdata.object_property;
Device_Objects_Property_List(rpmdata.object_type,
&property_list);
property_count =
RPM_Object_Property_Count(&property_list,
special_object_property);
if (property_count == 0) {
/* handle the error code - but use the special property */
len =
RPM_Encode_Property(&Handler_Transmit_Buffer
[npdu_len], (uint16_t) apdu_len, MAX_APDU,
&rpmdata);
if (len > 0) {
apdu_len += len;
} else {
#if PRINT_ENABLED
fprintf(stderr,
"RPM: Too full for special property!\r\n");
#endif
error = len;
goto RPM_FAILURE;
}
} else {
for (index = 0; index < property_count; index++) {
rpmdata.object_property =
RPM_Object_Property(&property_list,
special_object_property, index);
len =
RPM_Encode_Property(&Handler_Transmit_Buffer
[npdu_len], (uint16_t) apdu_len, MAX_APDU,
&rpmdata);
if (len > 0) {
apdu_len += len;
} else {
#if PRINT_ENABLED
fprintf(stderr,
"RPM: Too full for property!\r\n");
#endif
error = len;
goto RPM_FAILURE;
}
}
}
}
} else {
/* handle an individual property */
len =
RPM_Encode_Property(&Handler_Transmit_Buffer[npdu_len],
(uint16_t) apdu_len, MAX_APDU, &rpmdata);
if (len > 0) {
apdu_len += len;
} else {
#if PRINT_ENABLED
fprintf(stderr,
"RPM: Too full for individual property!\r\n");
#endif
error = len;
goto RPM_FAILURE;
}
}
if (decode_is_closing_tag_number(&service_request[decode_len], 1)) {
/* Reached end of property list so cap the result list */
decode_len++;
len = rpm_ack_encode_apdu_object_end(&Temp_Buf[0]);
copy_len =
memcopy(&Handler_Transmit_Buffer[npdu_len], &Temp_Buf[0],
apdu_len, len, MAX_APDU);
if (copy_len == 0) {
#if PRINT_ENABLED
fprintf(stderr, "RPM: Too full to encode object end!\r\n");
#endif
rpmdata.error_code =
ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
error = BACNET_STATUS_ABORT;
goto RPM_FAILURE;
} else {
apdu_len += copy_len;
}
break; /* finished with this property list */
}
}
if (decode_len >= service_len) {
/* Reached the end so finish up */
break;
}
}
if (apdu_len > service_data->max_resp) {
/* too big for the sender - send an abort */
rpmdata.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
error = BACNET_STATUS_ABORT;
#if PRINT_ENABLED
fprintf(stderr, "RPM: Message too large. Sending Abort!\n");
#endif
goto RPM_FAILURE;
}
RPM_FAILURE:
if (error) {
if (error == BACNET_STATUS_ABORT) {
apdu_len =
abort_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
abort_convert_error_code(rpmdata.error_code), true);
#if PRINT_ENABLED
fprintf(stderr, "RPM: Sending Abort!\n");
#endif
} else if (error == BACNET_STATUS_ERROR) {
apdu_len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_READ_PROP_MULTIPLE,
rpmdata.error_class, rpmdata.error_code);
#if PRINT_ENABLED
fprintf(stderr, "RPM: Sending Error!\n");
#endif
} else if (error == BACNET_STATUS_REJECT) {
apdu_len =
reject_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
reject_convert_error_code(rpmdata.error_code));
#if PRINT_ENABLED
fprintf(stderr, "RPM: Sending Reject!\n");
#endif
}
}
pdu_len = apdu_len + npdu_len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr, "RPM: Failed to send PDU (%s)!\n", strerror(errno));
}
#else
bytes_sent = bytes_sent;
#endif
}
static bool cov_send_request(
BACNET_COV_SUBSCRIPTION * cov_subscription,
BACNET_PROPERTY_VALUE * value_list)
{
int len = 0;
int pdu_len = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS my_address;
int bytes_sent = 0;
uint8_t invoke_id = 0;
bool status = false; /* return value */
BACNET_COV_DATA cov_data;
if (!dcc_communication_enabled()) {
return status;
}
#if PRINT_ENABLED
fprintf(stderr, "COVnotification: requested\n");
#endif
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], &cov_subscription->dest,
&my_address, &npdu_data);
/* load the COV data structure for outgoing message */
cov_data.subscriberProcessIdentifier =
cov_subscription->subscriberProcessIdentifier;
cov_data.initiatingDeviceIdentifier = Device_Object_Instance_Number();
cov_data.monitoredObjectIdentifier.type =
cov_subscription->monitoredObjectIdentifier.type;
cov_data.monitoredObjectIdentifier.instance =
cov_subscription->monitoredObjectIdentifier.instance;
cov_data.timeRemaining = cov_subscription->lifetime;
cov_data.listOfValues = value_list;
if (cov_subscription->flag.issueConfirmedNotifications) {
invoke_id = tsm_next_free_invokeID();
if (invoke_id) {
cov_subscription->invokeID = invoke_id;
len =
ccov_notify_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
invoke_id, &cov_data);
} else {
goto COV_FAILED;
}
} else {
len =
ucov_notify_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
&cov_data);
}
pdu_len += len;
if (cov_subscription->flag.issueConfirmedNotifications) {
tsm_set_confirmed_unsegmented_transaction(invoke_id,
&cov_subscription->dest, &npdu_data, &Handler_Transmit_Buffer[0],
(uint16_t) pdu_len);
}
bytes_sent =
datalink_send_pdu(&cov_subscription->dest, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
if (bytes_sent > 0) {
status = true;
}
COV_FAILED:
return status;
}
/** Sends a Write Property Multiple request.
* @param device_id [in] ID of the destination device
* @param write_access_data [in] Ptr to structure with the linked list of
* objects and properties to be written.
* @return invoke id of outgoing message, or 0 if device is not bound or no tsm available
*/
uint8_t Send_Write_Property_Multiple_Request_Data(
uint32_t device_id,
BACNET_WRITE_ACCESS_DATA * write_access_data)
{
BACNET_ADDRESS dest;
BACNET_ADDRESS my_address;
unsigned max_apdu = 0;
uint8_t invoke_id = 0;
bool status = false;
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
/* is the device bound? */
status = address_get_by_device(device_id, &max_apdu, &dest);
/* is there a tsm available? */
if (status)
invoke_id = tsm_next_free_invokeID();
if (invoke_id) {
/* encode the NPDU portion of the packet */
datalink_get_my_address(&my_address);
npdu_encode_npdu_data(&npdu_data, true, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], &dest, &my_address,
&npdu_data);
len =
wpm_encode_apdu(&Handler_Transmit_Buffer[pdu_len], max_apdu,
invoke_id, write_access_data);
pdu_len += len;
/* will it fit in the sender?
note: if there is a bottleneck router in between
us and the destination, we won't know unless
we have a way to check for that and update the
max_apdu in the address binding table. */
if ((unsigned) pdu_len < max_apdu) {
tsm_set_confirmed_unsegmented_transaction(invoke_id, &dest,
&npdu_data, &Handler_Transmit_Buffer[0], (uint16_t) pdu_len);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data,
&Handler_Transmit_Buffer[0], pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "Failed to Send WriteProperty Request (%s)!\n",
strerror(errno));
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send WriteProperty Request "
"(exceeds destination maximum APDU)!\n");
#endif
}
}
return invoke_id;
}
/** Handler for a COV Subscribe Service request.
* @ingroup DSCOV
* This handler will be invoked by apdu_handler() if it has been enabled
* by a call to apdu_set_confirmed_handler().
* This handler builds a response packet, which is
* - an Abort if
* - the message is segmented
* - if decoding fails
* - an ACK, if cov_subscribe() succeeds
* - an Error if cov_subscribe() fails
*
* @param service_request [in] The contents of the service request.
* @param service_len [in] The length of the service_request.
* @param src [in] BACNET_ADDRESS of the source of the message
* @param service_data [in] The BACNET_CONFIRMED_SERVICE_DATA information
* decoded from the APDU header of this message.
*/
void handler_cov_subscribe(
uint8_t * service_request,
uint16_t service_len,
BACNET_ADDRESS * src,
BACNET_CONFIRMED_SERVICE_DATA * service_data)
{
BACNET_SUBSCRIBE_COV_DATA cov_data;
int len = 0;
int pdu_len = 0;
int npdu_len = 0;
int apdu_len = 0;
BACNET_NPDU_DATA npdu_data;
bool success = false;
int bytes_sent = 0;
BACNET_ADDRESS my_address;
bool error = false;
/* initialize a common abort code */
cov_data.error_code = ERROR_CODE_ABORT_SEGMENTATION_NOT_SUPPORTED;
/* 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 (service_data->segmented_message) {
/* we don't support segmentation - send an abort */
len = BACNET_STATUS_ABORT;
#if PRINT_ENABLED
fprintf(stderr, "SubscribeCOV: Segmented message. Sending Abort!\n");
#endif
error = true;
goto COV_ABORT;
}
len =
cov_subscribe_decode_service_request(service_request, service_len,
&cov_data);
#if PRINT_ENABLED
if (len <= 0)
fprintf(stderr, "SubscribeCOV: Unable to decode Request!\n");
#endif
if (len < 0) {
error = true;
goto COV_ABORT;
}
cov_data.error_class = ERROR_CLASS_OBJECT;
cov_data.error_code = ERROR_CODE_UNKNOWN_OBJECT;
success =
cov_subscribe(src, &cov_data, &cov_data.error_class,
&cov_data.error_code);
if (success) {
apdu_len =
encode_simple_ack(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_SUBSCRIBE_COV);
#if PRINT_ENABLED
fprintf(stderr, "SubscribeCOV: Sending Simple Ack!\n");
#endif
} else {
len = BACNET_STATUS_ERROR;
error = true;
#if PRINT_ENABLED
fprintf(stderr, "SubscribeCOV: Sending Error!\n");
#endif
}
COV_ABORT:
if (error) {
if (len == BACNET_STATUS_ABORT) {
apdu_len =
abort_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
abort_convert_error_code(cov_data.error_code), true);
#if PRINT_ENABLED
fprintf(stderr, "SubscribeCOV: Sending Abort!\n");
#endif
} else if (len == BACNET_STATUS_ERROR) {
apdu_len =
bacerror_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id, SERVICE_CONFIRMED_SUBSCRIBE_COV,
cov_data.error_class, cov_data.error_code);
#if PRINT_ENABLED
fprintf(stderr, "SubscribeCOV: Sending Error!\n");
#endif
} else if (len == BACNET_STATUS_REJECT) {
apdu_len =
reject_encode_apdu(&Handler_Transmit_Buffer[npdu_len],
service_data->invoke_id,
reject_convert_error_code(cov_data.error_code));
#if PRINT_ENABLED
fprintf(stderr, "SubscribeCOV: Sending Reject!\n");
#endif
}
}
pdu_len = npdu_len + apdu_len;
bytes_sent =
datalink_send_pdu(src, &npdu_data, &Handler_Transmit_Buffer[0],
pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0)
fprintf(stderr, "SubscribeCOV: Failed to send PDU (%s)!\n",
strerror(errno));
#else
bytes_sent = bytes_sent;
#endif
return;
}
