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Feature/what is network number handling (#304)

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* Add What-Is-Network-Number handling.

Add What-Is-Network-Number and Network-Number-Is network layer handling.
Refactor npdu_encode_npdu_network() from router specific code.
Add unit test for NDPU network message
Add app for What-Is-Network-Number
Add app for Network-Number-Is
Add send helper for What-Is-Network-Number
Add send helper for Network-Number-Is

* added sys/debug.c to ports builds for use of debug_printf() in npdu handler.

Co-authored-by: Steve Karg <skarg@users.sourceforge.net>
This commit is contained in:
Steve Karg
2022-07-14 15:34:45 -05:00
committed by GitHub
parent 38d213b47c
commit 1f41341c09
28 changed files with 1080 additions and 46 deletions
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src/bacnet/npdu.c
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@@ -286,6 +286,36 @@ void npdu_encode_npdu_data(BACNET_NPDU_DATA *npdu_data,
}
}
/** Initialize an npdu_data structure with given parameters and good defaults,
* and add the Network Layer Message fields.
* The name is a misnomer, as it doesn't do any actual encoding here.
* @see npdu_encode_npdu_data for a simpler version to use when sending an
* APDU instead of a Network Layer Message.
*
* @param npdu_data [out] Returns a filled-out structure with information
* provided by the other arguments and
* good defaults.
* @param network_message_type [in] The type of Network Layer Message.
* @param data_expecting_reply [in] True if message should have a reply.
* @param priority [in] One of the 4 priorities defined in section 6.2.2,
* like B'11' = Life Safety message
*/
void npdu_encode_npdu_network(BACNET_NPDU_DATA *npdu_data,
BACNET_NETWORK_MESSAGE_TYPE network_message_type,
bool data_expecting_reply,
BACNET_MESSAGE_PRIORITY priority)
{
if (npdu_data) {
npdu_data->data_expecting_reply = data_expecting_reply;
npdu_data->protocol_version = BACNET_PROTOCOL_VERSION;
npdu_data->network_layer_message = true; /* false if APDU */
npdu_data->network_message_type = network_message_type; /* optional */
npdu_data->vendor_id = 0; /* optional, if net message type is > 0x80 */
npdu_data->priority = priority;
npdu_data->hop_count = HOP_COUNT_DEFAULT;
}
}
/** Decode the NPDU portion of a received message, particularly the NCPI byte.
* The Network Layer Protocol Control Information byte is described
* in section 6.2.2 of the BACnet standard.