void Send_TimeSyncUTC(
BACNET_DATE * bdate,
BACNET_TIME * btime)
{
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
if (!dcc_communication_enabled())
return;
/* we could use unicast or 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(&Handler_Transmit_Buffer[0], &dest, NULL, &npdu_data);
/* encode the APDU portion of the packet */
pdu_len =
timesync_utc_encode_apdu(&Handler_Transmit_Buffer[0], bdate, btime);
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 UTC-Time-Synchronization Request (%s)!\n",
strerror(errno));
#endif
}
/** Send a local Who-Is request 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 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_Local(
int32_t low_limit,
int32_t high_limit)
{
BACNET_ADDRESS dest;
char temp[6];
int loop;
if (!dcc_communication_enabled())
return;
/* Who-Is is a global broadcast */
datalink_get_broadcast_address(&dest);
/* encode the NPDU portion of the packet */
/* I added this to make it a local broadcast */
dest.net = 0;
/* Not sure why this happens but values are backwards so they need to be reversed */
temp[0] = dest.mac[3];
temp[1] = dest.mac[2];
temp[2] = dest.mac[1];
temp[3] = dest.mac[0];
temp[4] = dest.mac[5];
temp[5] = dest.mac[4];
for (loop = 0; loop < 6; loop++) {
dest.mac[loop] = temp[loop];
}
Send_WhoIs_To_Network(&dest, low_limit, high_limit);
}
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
}
/**
* 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
}
/** Send a Who-Is request to a remote network for a specific device, a range,
* or any device.
* @ingroup DMDDB
* 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_Remote(
BACNET_ADDRESS * target_address,
int32_t low_limit,
int32_t high_limit)
{
if (!dcc_communication_enabled())
return;
Send_WhoIs_To_Network(target_address, low_limit, high_limit);
}
/** Send a global Who-Is request 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 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_Global(
int32_t low_limit,
int32_t high_limit)
{
BACNET_ADDRESS dest;
if (!dcc_communication_enabled())
return;
/* Who-Is is a global broadcast */
datalink_get_broadcast_address(&dest);
Send_WhoIs_To_Network(&dest, low_limit, high_limit);
}
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
}
/* find a specific device, or use -1 for limit if you want unlimited */
void Send_I_Have(
uint32_t device_id,
BACNET_OBJECT_TYPE object_type,
uint32_t object_instance,
char *object_name)
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_I_HAVE_DATA data;
BACNET_NPDU_DATA npdu_data;
/* 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);
/* 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, NULL, &npdu_data);
/* encode the APDU portion of the packet */
data.device_id.type = OBJECT_DEVICE;
data.device_id.instance = device_id;
data.object_id.type = object_type;
data.object_id.instance = object_instance;
characterstring_init_ansi(&data.object_name, object_name);
len = ihave_encode_apdu(&Handler_Transmit_Buffer[pdu_len], &data);
pdu_len += len;
/* send the data */
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 I-Have Reply (%s)!\n",
strerror(errno));
#endif
}
/* returns the invoke id, 0=unsuccessful */
uint8_t Send_CEvent_Notify(
uint32_t device_id,
BACNET_EVENT_NOTIFICATION_DATA * data)
{
int len = 0;
int pdu_len = 0;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
BACNET_ADDRESS dest;
BACNET_ADDRESS my_address;
unsigned max_apdu = 0;
bool status = false;
uint8_t invoke_id = 0;
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 =
cevent_notify_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 ((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 ConfirmedEventNotification Request (%s)!\n",
strerror(errno));
}
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send ConfirmedEventNotification 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;
}
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;
}
/** 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;
}
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;
}
/** Sends a Reinitialize Device (RD) request.
* @ingroup DMRD
*
* @param device_id [in] The index to the device address in our address cache.
* @param state [in] Specifies the desired state of the device after reinitialization.
* @param password [in] Optional password, up to 20 chars.
* @return The invokeID of the transmitted message, or 0 on failure.
*/
uint8_t Send_Reinitialize_Device_Request(
uint32_t device_id,
BACNET_REINITIALIZED_STATE state,
char *password)
{
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_CHARACTER_STRING password_string;
BACNET_NPDU_DATA npdu_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) {
/* 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 */
characterstring_init_ansi(&password_string, password);
len =
rd_encode_apdu(&Handler_Transmit_Buffer[pdu_len], invoke_id, state,
password ? &password_string : NULL);
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 ReinitializeDevice Request (%s)!\n",
strerror(errno));
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send ReinitializeDevice Request "
"(exceeds destination maximum APDU)!\n");
#endif
}
}
return invoke_id;
}
/** Sends a Write Property Multiple request.
* @param pdu [out] Buffer to build the outgoing message into
* @param max_pdu [in] Length of the pdu buffer.
* @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(
uint8_t * pdu,
size_t max_pdu,
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;
/* 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) {
/* 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(&pdu[0], &dest, &my_address,&npdu_data);
/* encode the APDU portion of the packet */
len =
wpm_encode_apdu(&pdu[pdu_len], max_pdu - pdu_len,
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, &pdu[0], (uint16_t) pdu_len);
bytes_sent =
datalink_send_pdu(&dest, &npdu_data,
&pdu[0], pdu_len);
#if PRINT_ENABLED
if (bytes_sent <= 0) {
fprintf(stderr,
"Failed to Send WritePropertyMultiple Request (%s)!\n",
strerror(errno));
}
#endif
} else {
tsm_free_invoke_id(invoke_id);
invoke_id = 0;
#if PRINT_ENABLED
fprintf(stderr,
"Failed to Send WritePropertyMultiple Request "
"(exceeds destination maximum APDU)!\n");
#endif
}
}
return invoke_id;
}
