Added segmentation support for server devices for some services. Configure BACNET_SEGMENTATION_ENABLED=1 to include in the library, and adjust BACNET_MAX_SEGMENTS_ACCEPTED for maximum number of segments.
* 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 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.
* Fixed units property declaration in basic Analog Input header file to be uint16_t instead of uint8_t.
* Added range checking of units property in example objects WriteProperty handler.
This fixes segmented Complex-ACK frames which were dropped. This enables all proprietary frames and any new frames to be recieved to the higher layers.
* Fixed compiler warning format '%u' expects argument of type 'unsigned int', but argument 4 has type 'uint32_t' {aka 'long unsigned int'} [-Werror=format=] by casting or increasing format specifier size and casting. Increased the size of the name string to handle larger possible integers.
* Fixed copied code that no longer needs static function scope variables for text names.
* 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
* Linux MS/TP:
* dlmstp_init:
* Maximize thread priority if permitted
* MSTP_Put_Receive/dlmstp_receive:
* Use a buffer so incoming frames are not dropped during bursts
* dlmstp_receive:
* Make timeout optional
* MSTP_Get_Reply:
* Lock the mutex before using the PDU Queue
* Iterate over all queued replies to find a match (instead of only checking the first)
* Sleep for a millisecond before checking again to wait for the application provide a reply
* RS485_Check_UART_Data:
* Ensure waiter is initilized before using with select
* Ensure bytes are read before adding to FIFO
TSM:
* Add log when `datalink_send_pdu` fails for consistency with all other `datalink_send_pdu` calls
dlenv_maintenance_timer:
* Fix Tx/Rx labels in MSTP statitistics print
* don't log on queued requests
* Added missing API defined in header into ports/win32/dlmstp.c module, added a PDU queue and refactored receive thread, and refactored MS/TP timing parameters.
* Added missing API defined in header into ports/linux/dlmstp.c module, and refactored MS/TP timing parameters.
* Added missing API defined in header into ports/bsd/dlmstp.c module, and refactored MS/TP timing parameters.
* Reduce default MS/TP APDU to 480 to avoid extended frames by default.
* Changed win32 port of localtime to use secure OS API functions when compiled with MSVC
* Changed all the sprintf to use snprintf instead in BSC tests to ensure null string endings.
* Fixed WriteProperty error code for PROP_FD_BBMD_ADDRESS and PROP_FD_SUBSCRIPTION_LIFETIME properties.
* Fixed dead-code warning after enabling all datalinks for basic network port object using the property list as the R/W checking for the port type.
Steve Karg