BobinkCOpcUa - OPC UA applications in C

	Commit message (Collapse)	Author	Age	Files	Lines
*	Keep PEM certificate after generation	Thomas Vanbesien	3 days	1	-2/+2
\| \| \| \| \|	Stop deleting the PEM certificate so it remains available alongside the DER files. Fix the output listing to show the PEM path.
*	Add configurable log level as optional CLI argument	Thomas Vanbesien	3 days	7	-30/+123
\| \| \| \| \| \| \| \| \|	All three programs now accept an optional second argument [log-level] (trace, debug, info, warning, error, fatal) defaulting to info. The level is applied by setting the logger context pointer directly, avoiding a memory leak that would occur from overwriting the heap-allocated logger struct. Also documents the ASan leak-check workflow in CLAUDE.md.
*	Replace CLI arguments with config-file parser and add integration tests	Thomas Vanbesien	3 days	30	-312/+1179
\| \| \| \| \| \| \| \|	Introduce a reusable key=value config parser (config.h/c) and convert all three programs to read their settings from config files instead of positional command-line arguments. Add example config files in config/ and 6 CTest integration tests covering None/Basic256Sha256/Aes128 with anonymous and user authentication. Remove the now-obsolete launch.sh.
*	Improve comments in server_register.c	Thomas Vanbesien	3 days	1	-1/+6
\| \| \| \| \| \|	Remove a useless comment on an empty branch and add intent comments before the manual event loop startup, the periodic re-registration loop, and the shutdown deregistration block.
*	Make authentication mode and credentials configurable via CLI	Thomas Vanbesien	3 days	4	-49/+212
\| \| \| \| \| \| \| \| \| \| \| \| \|	Replace hardcoded user/password credentials with a new <auth-mode> parameter that accepts "anonymous" or "user". When "user" is chosen, two additional <username> <password> arguments are required. ServerRegister accepts two independent auth modes: one for its own server-side access control and one for authenticating to the LDS when registering. ClientFindServers passes credentials to readServerTime, which selects UA_Client_connectUsername or UA_Client_connect accordingly. Update CLAUDE.md running examples and add an auth modes table.
*	Add username/password authentication to servers and client	Thomas Vanbesien	3 days	3	-1/+36
\| \| \| \| \| \| \| \| \|	Disallow anonymous sessions on both the LDS and registering server by configuring UA_AccessControl_default with a hardcoded user/password credential pair. Set UA_ClientConfig_setAuthenticationUsername on the client configs used for register, re-register, and deregister calls. Use UA_Client_connectUsername in the FindServers client when reading server time.
*	Initial commit: OPC UA discovery project	Thomas Vanbesien	3 days	14	-0/+1651
	CMake-based C project using open62541 for OPC UA discovery. Includes Local Discovery Server, register server, and find servers client with OpenSSL encryption support.