Replace ClientFindServers with unified Client, use trust store directories

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.

3 files changed, 0 insertions, 53 deletions

diff --git a/tests/aes128_anon/client_find_servers.conf b/tests/aes128_anon/client_find_servers.conf
deleted file mode 100644
index 2cc096d..0000000
--- a/tests/aes128_anon/client_find_servers.conf
+++ /dev/null
@@ -1,20 +0,0 @@
-# ClientFindServers — test: aes128_anon
-
-discoveryEndpoint = opc.tcp://localhost:14840
-applicationUri = urn:bobink.ClientFindServers
-
-# Discovery (LDS) side
-discoveryCertificate = certs/ClientFindServers_cert.der
-discoveryPrivateKey = certs/ClientFindServers_key.der
-discoverySecurityMode = SignAndEncrypt
-discoverySecurityPolicy = Aes128_Sha256_RsaOaep
-discoveryAuthMode = anonymous
-discoveryTrustList = certs/ServerLDS_cert.der
-
-# Server side
-serverCertificate = certs/ClientFindServers_cert.der
-serverPrivateKey = certs/ClientFindServers_key.der
-serverSecurityMode = SignAndEncrypt
-serverSecurityPolicy = Aes128_Sha256_RsaOaep
-serverAuthMode = anonymous
-serverTrustList = certs/ServerRegister_cert.der
diff --git a/tests/aes128_anon/server_lds.conf b/tests/aes128_anon/server_lds.conf
deleted file mode 100644
index e8601d0..0000000
--- a/tests/aes128_anon/server_lds.conf
+++ /dev/null
@@ -1,12 +0,0 @@
-# ServerLDS — test: aes128_anon
-
-port = 14840
-applicationUri = urn:bobink.ServerLDS
-certificate = certs/ServerLDS_cert.der
-privateKey = certs/ServerLDS_key.der
-cleanupTimeout = 60
-
-authMode = anonymous
-
-trustList = certs/ServerRegisterClient_cert.der
-trustList = certs/ClientFindServers_cert.der
diff --git a/tests/aes128_anon/server_register.conf b/tests/aes128_anon/server_register.conf
deleted file mode 100644
index 8a8d1d1..0000000
--- a/tests/aes128_anon/server_register.conf
+++ /dev/null
@@ -1,21 +0,0 @@
-# ServerRegister — test: aes128_anon
-
-port = 14841
-applicationUri = urn:bobink.ServerRegister
-serverCertificate = certs/ServerRegister_cert.der
-serverPrivateKey = certs/ServerRegister_key.der
-clientCertificate = certs/ServerRegisterClient_cert.der
-clientPrivateKey = certs/ServerRegisterClient_key.der
-
-discoveryEndpoint = opc.tcp://localhost:14840
-registerInterval = 10
-
-securityMode = SignAndEncrypt
-securityPolicy = Aes128_Sha256_RsaOaep
-
-serverAuthMode = anonymous
-
-clientAuthMode = anonymous
-
-trustList = certs/ServerLDS_cert.der
-trustList = certs/ClientFindServers_cert.der