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feat(example): Add an example of using encryption with a filestore backend

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Noel Graf 2025-01-24 12:42:50 +01:00 committed by Julius Pfrommer
parent 575d0adca7
commit d49cb241ba
2 changed files with 72 additions and 0 deletions
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1
examples/CMakeLists.txt
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@ -144,6 +144,7 @@ if(UA_ENABLE_ENCRYPTION OR
UA_ENABLE_ENCRYPTION STREQUAL "MBEDTLS" OR
UA_ENABLE_ENCRYPTION STREQUAL "OPENSSL")
add_example(server_encryption encryption/server_encryption.c)
add_example(server_encryption_filestore encryption/server_encryption_filestore.c)
add_example(client_encryption encryption/client_encryption.c)
target_include_directories(server_encryption PRIVATE "${PROJECT_SOURCE_DIR}/examples")
target_include_directories(client_encryption PRIVATE "${PROJECT_SOURCE_DIR}/examples")

71
examples/encryption/server_encryption_filestore.c Normal file
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@ -0,0 +1,71 @@
/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
* See http://creativecommons.org/publicdomain/zero/1.0/ for more information.
*
* Copyright 2024 (c) Fraunhofer IOSB (Author: Noel Graf)
*/
#include <open62541/client_highlevel.h>
#include <open62541/plugin/log_stdout.h>
#include <open62541/plugin/create_certificate.h>
#include <open62541/server.h>
#include <open62541/server_config_default.h>
#include <signal.h>
#include "common.h"
UA_Boolean running = true;
static void stopHandler(int sig) {
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND, "received ctrl-c");
running = false;
}
int main(int argc, char* argv[]) {
signal(SIGINT, stopHandler);
signal(SIGTERM, stopHandler);
UA_ByteString certificate = UA_BYTESTRING_NULL;
UA_ByteString privateKey = UA_BYTESTRING_NULL;
UA_String storePath = UA_STRING_NULL;
if(argc >= 3) {
/* Load certificate and private key */
certificate = loadFile(argv[1]);
privateKey = loadFile(argv[2]);
} else {
UA_LOG_FATAL(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
"Missing arguments. Arguments are "
"<server-certificate.der> <private-key.der> [<path/to/pki/folder>]");
return EXIT_FAILURE;
}
if(argc >= 4) {
storePath = UA_STRING(argv[3]);
} else {
/* If no path is specified, the current working directory is used */
char storePathDir[4096];
if(!getcwd(storePathDir, sizeof(storePathDir)))
return UA_STATUSCODE_BADINTERNALERROR;
storePath = UA_STRING(storePathDir);
}
UA_Server *server = UA_Server_new();
UA_ServerConfig *config = UA_Server_getConfig(server);
UA_StatusCode retval =
UA_ServerConfig_setDefaultWithFilestore(config, 4840, &certificate, &privateKey, storePath);
if(retval != UA_STATUSCODE_GOOD)
goto cleanup;
if(!running)
goto cleanup; /* received ctrl-c already */
retval = UA_Server_run(server, &running);
cleanup:
UA_Server_delete(server);
UA_ByteString_clear(&certificate);
UA_ByteString_clear(&privateKey);
UA_String_clear(&storePath);
return retval == UA_STATUSCODE_GOOD ? EXIT_SUCCESS : EXIT_FAILURE;
}