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Feature/add who am i and you are services (#1024)

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* Added Who-Am-I-Request encoding, decoding, unit tests, and command line application bacwhoami.

* Added You-Are-Request encoding, decoding, unit tests, and command line application bacyouare.

* Added Who-Am-I with Who-Is and You-Are handling into the example server application when run as device 4194303.
This commit is contained in:
Steve Karg
2025-06-23 10:49:59 -05:00
committed by GitHub
parent 9e626e599b
commit 5072fb5913
34 changed files with 2411 additions and 80 deletions
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apps/server/main.c
+26 -5
View File
@@ -174,10 +174,9 @@ static void Init_Service_Handlers(void)
(unsigned)object_data.object_instance);
}
}
/* update structured view with this device instance */
Structured_View_Update();
/* we need to handle who-is to support dynamic device binding */
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
apdu_set_unconfirmed_handler(
SERVICE_UNCONFIRMED_WHO_IS, handler_who_is_who_am_i_unicast);
apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_HAS, handler_who_has);
/* set the handler for all the services we don't implement */
/* It is required to send the proper reject message... */
@@ -206,6 +205,8 @@ static void Init_Service_Handlers(void)
SERVICE_UNCONFIRMED_UTC_TIME_SYNCHRONIZATION, handler_timesync_utc);
apdu_set_unconfirmed_handler(
SERVICE_UNCONFIRMED_TIME_SYNCHRONIZATION, handler_timesync);
apdu_set_unconfirmed_handler(
SERVICE_UNCONFIRMED_YOU_ARE, handler_you_are_json_print);
apdu_set_confirmed_handler(
SERVICE_CONFIRMED_SUBSCRIBE_COV, handler_cov_subscribe);
apdu_set_unconfirmed_handler(
@@ -292,6 +293,7 @@ int main(int argc, char *argv[])
uint32_t elapsed_milliseconds = 0;
uint32_t elapsed_seconds = 0;
BACNET_CHARACTER_STRING DeviceName;
uint32_t device_id = 0xFFFFFFFF;
#if defined(BACNET_TIME_MASTER)
BACNET_DATE_TIME bdatetime;
#endif
@@ -375,10 +377,29 @@ int main(int argc, char *argv[])
}
dlenv_init();
atexit(datalink_cleanup);
/* broadcast an I-Am on startup */
Send_I_Am(&Handler_Transmit_Buffer[0]);
#if BACNET_PROTOCOL_REVISION >= 22
if (Device_Object_Instance_Number() == BACNET_MAX_INSTANCE) {
apdu_set_unconfirmed_handler(
SERVICE_UNCONFIRMED_YOU_ARE, handler_you_are_device_id_set);
/* The Who-Am-I service is used by a sending BACnet-user
to indicate that it requires identity configuration
via the You-Are service. */
Send_Who_Am_I_Broadcast(
Device_Vendor_Identifier(), Device_Model_Name(),
Device_Serial_Number());
}
#endif
/* loop forever */
for (;;) {
if (device_id != Device_Object_Instance_Number()) {
device_id = Device_Object_Instance_Number();
/* update structured view with this device instance */
Structured_View_Update();
if (Device_Object_Instance_Number() != BACNET_MAX_INSTANCE) {
/* broadcast an I-Am on startup */
Send_I_Am(&Handler_Transmit_Buffer[0]);
}
}
/* input */
pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);