github/open62541
7
0
Fork 0
mirror of https://github.com/open62541/open62541.git synced 2025-06-03 04:00:21 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add example client/server for nodemanagement access control

Browse Source
This commit is contained in:
Christian von Arnim 2017-09-17 16:50:17 +02:00 committed by Julius Pfrommer
parent 365aea5c48
commit ecbd67bd11
3 changed files with 137 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
examples/CMakeLists.txt
View File

@ -73,6 +73,11 @@ add_example(server_inheritance server_inheritance.c)
add_example(custom_datatype_client custom_datatype/client_types_custom.c)
add_example(custom_datatype_server custom_datatype/server_types_custom.c)
if(UA_ENABLE_NODEMANAGEMENT)
add_example(access_control_server access_control/server_access_control.c)
add_example(access_control_client access_control/client_access_control.c)
endif()
if(UA_BUILD_EXAMPLES_NODESET_COMPILER)
if(BUILD_SHARED_LIBS)
message(FATAL_ERROR "The nodeset compiler currently requires static linking to access internal API")

67
examples/access_control/client_access_control.c Normal file
View File

@ -0,0 +1,67 @@
/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
* See http://creativecommons.org/publicdomain/zero/1.0/ for more information. */
/**
* Using access_control_server
*/
#include <stdio.h>
#include "open62541.h"
int main(void) {
UA_Client *client = UA_Client_new(UA_ClientConfig_default);
UA_StatusCode retval = UA_Client_connect(client, "opc.tcp://localhost:4840");
if(retval != UA_STATUSCODE_GOOD) {
UA_Client_delete(client);
return (int)retval;
}
UA_NodeId newVariableIdRequest = UA_NODEID_NUMERIC(1, 1001);
UA_NodeId newVariableId = UA_NODEID_NULL;
UA_VariableAttributes newVariableAttributes = UA_VariableAttributes_default;
newVariableAttributes.accessLevel = UA_ACCESSLEVELMASK_READ;
newVariableAttributes.description = UA_LOCALIZEDTEXT_ALLOC("en-US", "NewVariable desc");
newVariableAttributes.displayName = UA_LOCALIZEDTEXT_ALLOC("en-US", "NewVariable");
newVariableAttributes.dataType = UA_TYPES[UA_TYPES_UINT32].typeId;
{
UA_UInt32 value = 50;
UA_Variant_setScalarCopy(&newVariableAttributes.value, &value, &UA_TYPES[UA_TYPES_UINT32]);
}
UA_StatusCode retCode;
retCode = UA_Client_addVariableNode(client, newVariableIdRequest,
UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES),
UA_QUALIFIEDNAME(1, "newVariable"),
UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE),
newVariableAttributes, &newVariableId);
printf("addVariable returned: %s\n", UA_StatusCode_name(retCode));
UA_ExpandedNodeId extNodeId = UA_EXPANDEDNODEID_NUMERIC(0, 0);
extNodeId.nodeId = newVariableId;
retCode = UA_Client_addReference(client, UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT), UA_TRUE,
UA_STRING_NULL, extNodeId, UA_NODECLASS_VARIABLE);
printf("addReference returned: %s\n", UA_StatusCode_name(retCode));
retCode = UA_Client_deleteReference(client, UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES), UA_TRUE, extNodeId,
UA_TRUE);
printf("deleteReference returned: %s\n", UA_StatusCode_name(retCode));
retCode = UA_Client_deleteNode(client, newVariableId, UA_TRUE);
printf("deleteNode returned: %s\n", UA_StatusCode_name(retCode));
/* Clean up */
UA_VariableAttributes_deleteMembers(&newVariableAttributes);
UA_Client_delete(client); /* Disconnects the client internally */
return UA_STATUSCODE_GOOD;
}

65
examples/access_control/server_access_control.c Normal file
View File

@ -0,0 +1,65 @@
/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
* See http://creativecommons.org/publicdomain/zero/1.0/ for more information. */
#include <signal.h>
#include <stdio.h>
#include "open62541.h"
static UA_Boolean
allowAddNode(const UA_NodeId *sessionId, void *sessionContext,
const UA_AddNodesItem *item)
{
printf("Called allowAddNode\n");
return UA_TRUE;
}
static UA_Boolean
allowAddReference(const UA_NodeId *sessionId, void *sessionContext,
const UA_AddReferencesItem *item)
{
printf("Called allowAddReference\n");
return UA_TRUE;
}
static UA_Boolean
allowDeleteNode(const UA_NodeId *sessionId, void *sessionContext,
const UA_DeleteNodesItem *item)
{
printf("Called allowDeleteNode\n");
return UA_FALSE; // Do not allow deletion from client
}
static UA_Boolean
allowDeleteReference(const UA_NodeId *sessionId, void *sessionContext,
const UA_DeleteReferencesItem *item)
{
printf("Called allowDeleteReference\n");
return UA_TRUE;
}
UA_Boolean running = true;
static void stopHandler(int sign) {
UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "received ctrl-c");
running = false;
}
int main(void) {
signal(SIGINT, stopHandler);
signal(SIGTERM, stopHandler);
UA_ServerConfig *config = UA_ServerConfig_new_default();
// Set accessControl functions for nodeManagement
config->accessControl.allowAddNode = allowAddNode;
config->accessControl.allowAddReference = allowAddReference;
config->accessControl.allowDeleteNode = allowDeleteNode;
config->accessControl.allowDeleteReference = allowDeleteReference;
UA_Server *server = UA_Server_new(config);
UA_StatusCode retval = UA_Server_run(server, &running);
UA_Server_delete(server);
UA_ServerConfig_delete(config);
return (int)retval;
}