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
}
void Send_Initialize_Routing_Table_Ack(
BACNET_ROUTER_PORT * router_port_list)
{
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
/* FIXME: is this parameter needed? */
router_port_list = router_port_list;
/* setup packet for sending */
npdu_encode_npdu_network(&npdu_data, NETWORK_MESSAGE_INIT_RT_TABLE_ACK,
false, MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], NULL, NULL, &npdu_data);
/* encode the optional DNET list portion of the packet */
datalink_get_broadcast_address(&dest);
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 Initialize-Routing-Table-Ack message (%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);
}
/**
* Sends a TimeSync message as a broadcast
*
* @param bdate - #BACNET_DATE
* @param btime - #BACNET_TIME
*/
void Send_TimeSync(
BACNET_DATE * bdate,
BACNET_TIME * btime)
{
BACNET_ADDRESS dest;
datalink_get_broadcast_address(&dest);
Send_TimeSync_Remote(&dest, bdate, btime);
}
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;
}
/** 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);
}
/** 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
}
/* pDNET_list: list of networks for which I am a router,
terminated with -1 */
void Send_I_Am_Router_To_Network(
const int DNET_list[])
{
int len = 0;
int pdu_len = 0;
BACNET_ADDRESS dest;
int bytes_sent = 0;
BACNET_NPDU_DATA npdu_data;
uint16_t dnet = 0;
unsigned index = 0;
npdu_encode_npdu_network(&npdu_data,
NETWORK_MESSAGE_I_AM_ROUTER_TO_NETWORK, false,
MESSAGE_PRIORITY_NORMAL);
pdu_len =
npdu_encode_pdu(&Handler_Transmit_Buffer[0], NULL, NULL, &npdu_data);
/* encode the optional DNET list portion of the packet */
#if PRINT_ENABLED
fprintf(stderr, "Send I-Am-Router-To-Network message to:\n");
#endif
while (DNET_list[index] != -1) {
dnet = DNET_list[index];
len = encode_unsigned16(&Handler_Transmit_Buffer[pdu_len], dnet);
pdu_len += len;
index++;
#if PRINT_ENABLED
fprintf(stderr, "%u\n", dnet);
#endif
}
/* I-Am-Router-To-Network shall always be transmitted with
a broadcast MAC address. */
datalink_get_broadcast_address(&dest);
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-Am-Router-To-Network message (%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
}
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;
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = {
0
}; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 10; /* milliseconds */
unsigned max_apdu = 0;
time_t elapsed_seconds = 0;
time_t last_seconds = 0;
time_t current_seconds = 0;
time_t timeout_seconds = 0;
time_t delta_seconds = 0;
bool found = false;
char *filename = NULL;
char *value_string = NULL;
bool status = false;
int args_remaining = 0, tag_value_arg = 0, i = 0;
BACNET_APPLICATION_TAG property_tag;
uint8_t context_tag = 0;
BACNET_PRIVATE_TRANSFER_DATA private_data = { 0 };
int len = 0;
bool sent_message = false;
if (argc < 6) {
filename = filename_remove_path(argv[0]);
printf("Usage: %s <device-instance|broadcast|dnet=> vendor-id"
" service-number tag value [tag value...]\r\n", filename);
if ((argc > 1) && (strcmp(argv[1], "--help") == 0)) {
printf("device-instance:\r\n"
"BACnet Device Object Instance number that you are\r\n"
"trying to communicate to. This number will be used\r\n"
"to try and bind with the device using Who-Is and\r\n"
"I-Am services. For example, if you were transferring to\r\n"
"Device Object 123, the device-instance would be 123.\r\n"
"For Global Broadcast, use the word 'broadcast'.\r\n"
"For Local Broadcast to a particular DNET n, use 'dnet=n'.\r\n"
"\r\n" "vendor_id:\r\n"
"the unique vendor identification code for the type of\r\n"
"vendor proprietary service to be performed.\r\n" "\r\n"
"service-number (Unsigned32):\r\n"
"the desired proprietary service to be performed.\r\n" "\r\n"
"tag:\r\n" "Tag is the integer value of the enumeration \r\n"
"BACNET_APPLICATION_TAG in bacenum.h.\r\n"
"It is the data type of the value that you are sending.\r\n"
"For example, if you were transfering a REAL value, you would \r\n"
"use a tag of 4.\r\n"
"Context tags are created using two tags in a row.\r\n"
"The context tag is preceded by a C. Ctag tag.\r\n"
"C2 4 creates a context 2 tagged REAL.\r\n" "\r\n" "value:\r\n"
"The value is an ASCII representation of some type of data\r\n"
"that you are transfering.\r\n"
"It is encoded using the tag information provided.\r\n"
"For example, if you were transferring a REAL value of 100.0,\r\n"
"you would use 100.0 as the value.\r\n"
"If you were transferring an object identifier for Device 123,\r\n"
"you would use 8:123 as the value.\r\n" "\r\n" "Example:\r\n"
"If you want to transfer a REAL value of 1.1 to service 23 of \r\n"
"vendor 260 in Device 99, you could send the following command:\r\n"
"%s 99 260 23 4 1.1\r\n", filename);
}
return 0;
}
/* decode the command line parameters */
if (strcmp(argv[1], "broadcast") == 0) {
Target_Broadcast = true;
Target_DNET = BACNET_BROADCAST_NETWORK;
} else if (strncmp(argv[1], "dnet=", 5) == 0) {
Target_Broadcast = true;
Target_DNET = strtol(&argv[1][5], NULL, 0);
} else {
Target_Device_Object_Instance = strtol(argv[1], NULL, 0);
}
Target_Vendor_Identifier = strtol(argv[2], NULL, 0);
Target_Service_Number = strtol(argv[3], NULL, 0);
if ((!Target_Broadcast) &&
(Target_Device_Object_Instance > BACNET_MAX_INSTANCE)) {
fprintf(stderr, "device-instance=%u - it must be less than %u\r\n",
Target_Device_Object_Instance, BACNET_MAX_INSTANCE);
return 1;
}
args_remaining = (argc - (6 - 2));
for (i = 0; i < MAX_PROPERTY_VALUES; i++) {
tag_value_arg = (6 - 2) + (i * 2);
/* special case for context tagged values */
if (toupper(argv[tag_value_arg][0]) == 'C') {
context_tag = strtol(&argv[tag_value_arg][1], NULL, 0);
tag_value_arg++;
args_remaining--;
Target_Object_Property_Value[i].context_tag = context_tag;
Target_Object_Property_Value[i].context_specific = true;
} else {
Target_Object_Property_Value[i].context_specific = false;
}
property_tag = strtol(argv[tag_value_arg], NULL, 0);
args_remaining--;
if (args_remaining <= 0) {
fprintf(stderr, "Error: not enough tag-value pairs\r\n");
return 1;
}
value_string = argv[tag_value_arg + 1];
args_remaining--;
/* printf("tag[%d]=%u value[%d]=%s\r\n",
i, property_tag, i, value_string); */
if (property_tag >= MAX_BACNET_APPLICATION_TAG) {
fprintf(stderr, "Error: tag=%u - it must be less than %u\r\n",
property_tag, MAX_BACNET_APPLICATION_TAG);
return 1;
}
status =
bacapp_parse_application_data(property_tag, value_string,
&Target_Object_Property_Value[i]);
if (!status) {
/* FIXME: show the expected entry format for the tag */
fprintf(stderr, "Error: unable to parse the tag value\r\n");
return 1;
}
Target_Object_Property_Value[i].next = NULL;
if (i > 0) {
Target_Object_Property_Value[i - 1].next =
&Target_Object_Property_Value[i];
}
if (args_remaining <= 0) {
break;
}
}
if (args_remaining > 0) {
fprintf(stderr, "Error: Exceeded %d tag-value pairs.\r\n",
MAX_PROPERTY_VALUES);
return 1;
}
/* setup my info */
Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
address_init();
Init_Service_Handlers();
dlenv_init();
atexit(datalink_cleanup);
/* configure the timeout values */
last_seconds = time(NULL);
if (Target_Broadcast) {
datalink_get_broadcast_address(&Target_Address);
Target_Address.net = Target_DNET;
found = true;
timeout_seconds = 0;
} else {
timeout_seconds = (apdu_timeout() / 1000) * apdu_retries();
/* try to bind with the device */
found =
address_bind_request(Target_Device_Object_Instance, &max_apdu,
&Target_Address);
if (!found) {
Send_WhoIs(Target_Device_Object_Instance,
Target_Device_Object_Instance);
}
}
/* loop forever */
for (;;) {
/* increment timer - exit if timed out */
current_seconds = time(NULL);
/* at least one second has passed */
if (current_seconds != last_seconds) {
/* increment timer - exit if timed out */
delta_seconds = current_seconds - last_seconds;
elapsed_seconds += delta_seconds;
tsm_timer_milliseconds(((current_seconds - last_seconds) * 1000));
}
if (Error_Detected)
break;
/* wait until the device is bound, or timeout and quit */
if (!found) {
found =
address_bind_request(Target_Device_Object_Instance, &max_apdu,
&Target_Address);
}
if (!sent_message) {
if (found) {
len =
bacapp_encode_data(&Service_Parameters[0],
&Target_Object_Property_Value[0]);
private_data.serviceParameters = &Service_Parameters[0];
private_data.serviceParametersLen = len;
private_data.vendorID = Target_Vendor_Identifier;
private_data.serviceNumber = Target_Service_Number;
Send_UnconfirmedPrivateTransfer(&Target_Address,
&private_data);
printf("Sent PrivateTransfer.");
if (timeout_seconds) {
printf(" Waiting %u seconds.\r\n",
(unsigned) (timeout_seconds - elapsed_seconds));
} else {
printf("\r\n");
}
sent_message = true;
} else {
if (elapsed_seconds > timeout_seconds) {
printf("\rError: APDU Timeout!\r\n");
Error_Detected = true;
break;
}
}
}
/* 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 (Error_Detected) {
break;
}
/* unconfirmed - so just wait until our timeout value */
if (elapsed_seconds > timeout_seconds) {
break;
}
/* keep track of time for next check */
last_seconds = current_seconds;
}
if (Error_Detected)
return 1;
return 0;
}
int main(
int argc,
char *argv[])
{
BACNET_ADDRESS src = {
0
}; /* address where message came from */
uint16_t pdu_len = 0;
unsigned timeout = 100; /* milliseconds */
time_t total_seconds = 0;
time_t elapsed_seconds = 0;
time_t last_seconds = 0;
time_t current_seconds = 0;
time_t timeout_seconds = 0;
BACNET_ADDRESS dest;
int argi;
/* print help if requested */
for (argi = 1; argi < argc; argi++) {
if (strcmp(argv[argi], "--help") == 0) {
print_help(filename_remove_path(argv[0]));
return 0;
}
}
datalink_get_broadcast_address(&dest);
/* decode the command line parameters */
if (argc >= 2) {
char *s;
long v = strtol(argv[1], &s, 0);
if (*s++ == ':') {
if (argv[1][0] != ':')
dest.net = (uint16_t) v;
dest.mac_len = 0;
if (isdigit(*s))
parse_bac_address(&dest, s);
} else {
Target_Object_Instance_Min = Target_Object_Instance_Max = v;
}
}
if (argc <= 2) {
/* empty */
} else if (argc == 3) {
if (Target_Object_Instance_Min == -1)
Target_Object_Instance_Min = Target_Object_Instance_Max =
strtol(argv[2], NULL, 0);
else
Target_Object_Instance_Max = strtol(argv[2], NULL, 0);
} else if (argc == 4) {
Target_Object_Instance_Min = strtol(argv[2], NULL, 0);
Target_Object_Instance_Max = strtol(argv[3], NULL, 0);
} else {
print_usage(filename_remove_path(argv[0]));
return 1;
}
if (Target_Object_Instance_Min > BACNET_MAX_INSTANCE) {
fprintf(stderr, "device-instance-min=%u - it must be less than %u\r\n",
Target_Object_Instance_Min, BACNET_MAX_INSTANCE + 1);
return 1;
}
if (Target_Object_Instance_Max > BACNET_MAX_INSTANCE) {
fprintf(stderr, "device-instance-max=%u - it must be less than %u\r\n",
Target_Object_Instance_Max, BACNET_MAX_INSTANCE + 1);
return 1;
}
/* setup my info */
Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
init_service_handlers();
address_init();
dlenv_init();
atexit(datalink_cleanup);
/* configure the timeout values */
last_seconds = time(NULL);
timeout_seconds = apdu_timeout() / 1000;
/* send the request */
Send_WhoIs_To_Network(&dest, Target_Object_Instance_Min,
Target_Object_Instance_Max);
/* loop forever */
for (;;) {
/* increment timer - exit if timed out */
current_seconds = time(NULL);
/* 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 (Error_Detected)
break;
/* increment timer - exit if timed out */
elapsed_seconds = current_seconds - last_seconds;
if (elapsed_seconds) {
#if defined(BACDL_BIP) && BBMD_ENABLED
bvlc_maintenance_timer(elapsed_seconds);
#endif
}
total_seconds += elapsed_seconds;
if (total_seconds > timeout_seconds)
break;
/* keep track of time for next check */
last_seconds = current_seconds;
}
print_address_cache();
return 0;
}