* Add low and high trim fade functionality to lighting command operations
* Refactor lighting command override functions and fix operating and normalized range.
* Add physical range clamping function and update related clamping logic
* Fix: Corrected `rr_address_list_encode` to properly handle the end of the address cache and added a new test case to validate ReadRange operations near the cache limit.
* Added WriteProperty handler in the Structured View object with handling for object-name, description, node-subtype, node-type, default-subordinate-relationship, represents, subordinate-list, subordinate-annotations, subordinate-node-types, and subordinate-relationships in the basic Structured View object.
* Changed Structured View character strings for object-name, description, and node-subtype to use dynamic strings to support WriteProperty.
* Added characterstring_utf8_valid(), characterstring_utf8_strdup() and write_property_characterstring_utf8_strdup() for UTF-8 string duplication.
* Added write property tests for array handling and validation of array index values
* Added CreateObject and DeleteObject for basic Octet String Value and Positive Integer Value objects.
* Changed PositiveInteger present-value datatype to BACNET_UNSIGNED_INTEGER.
* Added Who-Is-Router-To-Network process in basic Notification Class when recipient address is missing the router MAC address.
* Added buffer_length parameter to octet string buffer decode functions
* Fixed BACnet address handling for I-Am-Router address updating the recipient list address for the next hop router.
* Changed VMAC encoding and decoding to use octet string buffer API to reduce stack RAM.
* Added callback API for extending the basic Device object and children with proprietary properties for ReadProperty and WriteProperty services. The callback API includes a function to get the specific proprietary property list for any specific object instance in the device, functions to handle the ReadProperty or WriteProperty of the proprietary property.
* Added a new property_list_function typedef to proplist.h for proprietary property list callbacks
* Removed the object-specific proprietary property implementation from the Loop object
* Added test coverage in the Device test validating the proprietary property API usage
* Added CreateObject and DeleteObject for basic Accumulator objects.
* Added WriteProperty handling for object-name, scale, out-of-service, units, and max-pres-value.
* Added Blink.Callback and Blink.Priority to support end-of-blink actions for WARN_OFF/WARN_RELINQUISH. The Blink.Callback is invoked when a blink sequence ends or when a new command interrupts a WARN_OFF/WARN_RELINQUISH in progress.
* Added Lighting Output (LO) WARN_OFF/WARN_RELINQUISH post-egress priority array handling using the Blink.Callback
Added a new API for writable property lists across all the basic example object types, preparing for the introduction of a Writable_Property_List property in every object in a future BACnet standard revision.
The lists can be used by backup and restore feature to automatically choose the object property values in the backup that can be restored via internal WriteProperty directly from BACnet CreateObject services with List of Initial Values.
Updated existing device object examples to include these writable property lists.
* Fixed lighting output object lighting-command last-on-value to only
be updated with the last value of the Present_Value property that
was greater than or equal to 1.0%, keeping in mind that the Present_Value
shall indicate the target level of the operation and not the current
value.
Fixes the CreateObject service list-of-initial-values encoding and decoding by refactoring the data structure to be similar to WriteProperty. The implementation changes from using a linked list of property values to using a flat buffer approach with delayed decoding.
Changes:
* Refactored BACNET_CREATE_OBJECT_DATA structure to use an application_data buffer instead of a linked list for initial values
* Added a new create_object_process() and create_object_initializer_list_process() functions to centralize object creation logic and error reporting
* Updated all device implementations to use the new centralized creation functions
* Enhanced the create-object example application to support command-line specification of initial property values
* Added comprehensive test coverage for the new encoding/decoding and processing functions
* Fixed BACnet file object path name unintended path traversals by optionally restricting path name content with BACNET_FILE_PATH_RESTRICTED define.
* Added POSIX file path name checking for AtomicReadFile and AtomicWriteFile example applications. Prohibits use of relative and absolute file paths when BACNET_FILE_PATH_RESTRICTED is non-zero.
* Fixed tokenizer_string() off-by-one buffer overflow when processing string literals longer than the buffer limit.
* Fixed ubasic potential string buffer overflows by using snprintf instead of sprintf.
* Fixed ubasic label strings to use UBASIC_LABEL_LEN_MAX as buffer limit.
* Fixed ubasic string variables to initialize with zeros.
* Fixed compile errors when UBASIC_DEBUG_STRINGVARIABLES is defined.
* Added ubasic string variables user accessor API and unit testing for ubasic string variables.
* Fixed tokenizer_label() off-by-one buffer overflow when processing string literals longer than the buffer limit.
* Fixed lighting-output object blink warn to honor blink-warn-enable.
* Fixed the blink warn logic for a non-zero percent value blink inhibit.
* Fixed the warn relinquish to actually relinquish.
* Refactored BACnetShedLevel encoding, decoding, and printing into separate file. Added unit testing.
* Added API to load control object for shed-level, start-time, duty-window, full-duty-baseline, and enable.
* Fixed bacapp sprintf for shed level and host-n-port found in scan build.
* Updated documentation for encode functions to accurately describe return values (0 on error instead of BACNET_STATUS_ERROR)
* Expanded property support, removed INPUT object types, added fallback encoding for non-coerced data types, and updated error handling in ReadProperty of present-value to check for 0 instead of BACNET_STATUS_ERROR.
* Expanded the validation tests and increased test code coverage.
* Added BACnetRecipient and BACnetAddressBinding encoding, decoding, ASCII conversion, comparison, and copy functions.
* Added library specific string manipulation utilities including strcmp, strncmp, stptok, and snprintf with offset functions.
* Added test/README about verification and validation testing.
* Refactored the BACnet/SC datalink initialization order by moving certificate file checks and hub connection registration to occur after datalink initialization
* Replaced stdlib rand() with platform-specific cryptographically secure random functions (RtlGenRandom for Windows, getrandom for Linux, arc4random_buf for BSD) to generate UUID and VMAC addresses, preventing duplicates that broke connections
* Enabled conditional debug output in BACnet/SC components when BUILD=debug is specified
* Added a new getter API function Timer_State_Change_Value_Get() to the timer object that returns state-change values by copying them to a caller-provided buffer, providing a safer alternative to the existing Timer_State_Change_Value() function which returns a direct pointer to internal data.
* Added ListElement service callback for storing data.
* Added Audit Log and Time Value objects to basic device.
* Added Audit Log object to Makefile and CMake builds.
* Added basic timer object, internal state machine, and unit tests
* Added BACnetTimerStateChangeValue encode, decode, parse, print, and diff with unit tests
* Changed handler of add/remove list element to check if the property is a BACnetLIST
* Added BACnetLIST utility for handling WriteProperty to a list.
* Fixed outlier ReadProperty object handlers to return zero when the RP parameter is NULL.
* Converted device object test to use common read-write property test. Extended the basic BACnet device object example API.
* Created BACnet/IP and COV test mocks to enable device object testing with less dependencies.
* Fixed Lighting_Command to ignore write priority and use its own.
* Fixed BACnetLightingOperation reserved range.
* Refactor overridden into the lighting command module. Added Overridden status flags API. Added Lighting Output API to implement a momentary override to the output that is cleared at the next lighting command. Integrated lighting command overridden behavior into the lighting output object.
* Added Trim_Fade_Time, High_End_Trim, Low_End_Trim, Last_On_Value and Default_On_Value properties to lighting output.
Added TRIM_ACTIVE flag to lighting command. Added Last_On_Value and Default_On_Value to lighting command for restore and toggle.
* Fixed AddListElement and RemoveListElement which were checking the wrong return value from Device object.
* Fixed decoding of ListElement Tag 0: Object ID instance.
* Fixed Notification_Class_Add_List_Element() and Notification_Class_Remove_List_Element() element counter index, and empty slot detection.
* Added bacnet_recipient_device_set() and bacnet_recipient_address_set() API
* Added unit test coverage for Notification Class object.
* Added dynamic RAM file system to use with basic bacnet file object.
* Added static RAM file system to use with basic bacnet file object.
* Added check for read-only during AtomicWriteFile service API for BACnet File object.
* Change stm32f4xx example to use static RAM file system.
* Fixed bacfile_count() function return type
Steve Karg