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Add a discoveryOnly parameter to createServer(). All secure servers
still get the None security policy (needed for the client's initial
GetEndpoints handshake) and securityPolicyNoneDiscoveryOnly, but only
the LDS registers a None endpoint so purely unencrypted clients can
discover it. ServerRegister no longer advertises a None endpoint.
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UA_ServerConfig_addSecurityPolicyNone only adds the security policy,
not an endpoint entry. Without a None endpoint in the GetEndpoints
response, the open62541 client's internal endpoint negotiation fails
with BadIdentityTokenRejected before the FindServers request is sent.
Adding the endpoint via UA_ServerConfig_addEndpoint makes the None
endpoint visible; securityPolicyNoneDiscoveryOnly still restricts it
to discovery services only.
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Make encryption optional for both ServerRegister's LDS client
connection and the server side of ServerLDS/ServerRegister: when
certificate, privateKey, and trustStore are omitted the programs
run with SecurityPolicy#None only. Secure servers also add a
discovery-only None endpoint so unencrypted clients can still call
FindServers and GetEndpoints.
Consolidate tests from 5 policy-specific cases (nosec_anon,
none_user, basic256sha256_anon, aes256_anon, aes128_user) down to
3 that cover the important axes: unsecure_anonymous,
secure_anonymous, secure_user. Rename directories to use full
names. Auto-generate certificates and trust stores in run_test.sh.
Update readme and CLAUDE.md to reflect the current program
interface (unified Client binary, split ServerRegister configs)
and the new test names.
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- config.c: free partial strdup on configAppend failure
- common.c: consolidate loadTrustStore error paths with goto
- server_lds.c, server_register.c: make running volatile, remove
non-async-signal-safe call from signal handler
- server_register.c: extract LdsClientParams + makeLdsClientConfig
to deduplicate the register/deregister client config setup
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Rename createSecureServer to createServer and add an unsecure path
(UA_ServerConfig_setMinimal) when certPath is NULL, eliminating the
if/else server creation blocks in server_lds.c and server_register.c.
Add parseAuthConfig() to common.c to replace four near-identical
authMode parsing blocks across the three programs.
Restructure server_register.c error handling with goto cleanup,
removing ~20 duplicated cleanup sequences.
Rename the CMake library target from DiscoveryCommon to common.
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Replace the single-purpose ClientFindServers program with a unified Client
that supports three operations via CLI: find-servers, get-endpoints, and
read-time. This simplifies the architecture by using one client binary with
a single config file instead of a monolithic program that did everything in
one run.
Split the ServerRegister config into separate server and client config files
so the LDS-registration credentials are isolated from the server's own
settings. The discovery URL moves from config to a CLI argument.
Replace repeated trustList config entries with a single trustStore directory
path. Each program now points to a directory under certs/trust/ containing
.der files, so adding or removing trust is a file-copy operation rather than
editing every config file. Add loadTrustStore()/freeTrustStore() to
common.c and remove the now-unused configGetAll() from the config parser.
Simplify the test matrix from 6 to 4 cases (security and auth are
orthogonal, so the full 3x2 matrix is unnecessary). Update run_test.sh to
invoke the new Client three times and use port-polling instead of sleep.
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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.
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CMake-based C project using open62541 for OPC UA discovery.
Includes Local Discovery Server, register server, and find
servers client with OpenSSL encryption support.
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