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This is a fork of open62541, https://github.com/open62541/open62541

Boom: c77f09cfff
Aftakkingen Labels
open62541
Julius Pfrommer c77f09cfff remove pointers to securechannel when the connection closes, see #128 10 jaren geleden
cmake d5cc1d3bb9 async networking with libuv 10 jaren geleden
doc cfcb1a3bb6 authors and include dir in doxygen 10 jaren geleden
examples c77f09cfff remove pointers to securechannel when the connection closes, see #128 10 jaren geleden
include afbd8cc54a simplified adding of scalar nodes from userland 10 jaren geleden
src 9fa13e6e72 implemnted CloseSecureChannel request handlig, started to work on handling CLoseSessionRequest, relates to #129 10 jaren geleden
tests bf88b3d29f adjust unit test to datetime print 10 jaren geleden
tools d63f21fe0a add attribute-types to add nodes to minimal node set 10 jaren geleden
.gitignore 596f70813a Merge of branch namespace_generation 10 jaren geleden
.travis.yml 086a658a46 fix travis 10 jaren geleden
AUTHORS c495d9b248 Update AUTHORS 10 jaren geleden
CMakeLists.txt e20243f578 move not implemented services into ongoing folder 10 jaren geleden
LICENSE 9310d323c9 changed .gitignore again 11 jaren geleden
LICENSE-CC0 f8265df738 clean up include structure 10 jaren geleden
README.md b160c1cf7c add example to the readme 10 jaren geleden

README.md

open62541

An open-source communication stack implementation of OPC UA (OPC Unified Architecture) licensed under LGPL + static linking exception.

Ohloh Project Status Build Status Coverage Status Coverity Scan Build Status

What is currently working?

The project is in an early stage. We retain the right to break APIs until a first stable release.

  • Binary serialization of all data types: 100%
  • Node storage and setup of a minimal namespace zero: 100%
  • Standard OPC UA Clients can connect/open a SecureChannel/open a Session: 100%
  • Browsing/reading and writing attributes: 100%
  • Advanced SecureChannel and Session Management: 75%

Documentation

Documentation is generated from Doxygen annotations in the source code. The current version can be accessed at http://open62541.org/doxygen/.

Example Server Implementation

#include <stdio.h>
#include <signal.h>

// provided by the open62541 lib
#include "ua_server.h"
#include "ua_namespace_0.h"

// provided by the user, implementations available in the /examples folder
#include "logger_stdout.h"
#include "networklayer_tcp.h"

UA_Boolean running = UA_TRUE;
void stopHandler(int sign) {
	running = UA_FALSE;
}

void serverCallback(UA_Server *server) {
    // add your maintenance functionality here
    printf("does whatever servers do\n");
}

int main(int argc, char** argv) {
	signal(SIGINT, stopHandler); /* catches ctrl-c */

	#define PORT 16664
	UA_String endpointUrl;
	UA_String_copyprintf("opc.tpc://127.0.0.1:%i", endpointUrl, PORT);
    
	UA_Server server;
	UA_Server_init(&server, &endpointUrl);
	Logger_Stdout_init(&server.logger);

    UA_Int32 myInteger = 42;
    UA_String myIntegerName;
    UA_STRING_STATIC(myIntegerName, "The Answer");
    // Adds the integer variable as a child (HasComponent) to the "Objects" node.
    UA_Server_addScalarVariableNode(&server, &myIntegerName, (void*)&myInteger,
                                    &UA_[UA_INT32], &server.objectsNodeId,
                                    &server.hasComponentReferenceTypeId);

	NetworklayerTCP* nl;
	NetworklayerTCP_new(&nl, UA_ConnectionConfig_standard, PORT);
	printf("Server started, connect to to opc.tcp://127.0.0.1:%i\n", PORT);
	struct timeval callback_interval = {5, 0}; // run serverCallback every 5 seconds
	UA_Int32 retval = NetworkLayerTCP_run(nl, &server, callback_interval,
										  serverCallback, &running);
                                          
	UA_Server_deleteMembers(&server);
	NetworklayerTCP_delete(nl);
    UA_String_deleteMembers(&endpointUrl);
	return retval == UA_SUCCESS ? 0 : retval;
}

Build Procedure

Ubuntu

Install build infrastructure

sudo apt-get install git build-essential gcc cmake python python-lxml
Notes on older systems e.g. 12.04 LTS
  • Manual install of check framework 0.9.10 (symptoms like "error: implicit declaration of function ‘ck_assert_ptr_eq’") bash wget http://security.ubuntu.com/ubuntu/pool/main/c/check/check_0.9.10-6ubuntu3_amd64.deb sudo dpkg -i check_0.9.10-6ubuntu3_amd64.deb or for i386 bash wget http://security.ubuntu.com/ubuntu/pool/main/c/check/check_0.9.10-6ubuntu3_i386.deb sudo dpkg -i check_0.9.10-6ubuntu3_386.deb
  • Manuall install of gcc-4.8 (symptoms like "error: initialization discards ‘const’ qualifier from pointer target type [-Werror]") bash sudo add-apt-repository ppa:ubuntu-toolchain-r/test sudo apt-get update; sudo apt-get install gcc-4.8 sudo update-alternatives --remove-all gcc sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.8 20 sudo update-alternatives --config gcc

Build

git clone https://github.com/acplt/open62541.git
cd open62541
mkdir build
cmake .. # generate the build scripts
# Optionally create an Eclipse project: cmake -G "Eclipse CDT4 - Unix Makefiles" .. 
make # creates executables in the build directory

# enable additional features
sudo apt-get install libexpat1-dev # for XML-encoding
sudo apt-get install liburcu-dev # for multithreading
sudo apt-get install check # for unit tests
sudo apt-get install graphviz doxygen # for documentation generation

ccmake .. # to select features for compilation. Use "cmake-gui .." for more eye-candy
make
make test # unit tests
make doc # generate documentation

Windows (Visual Studio)

Windows (MinGW)

  • Execute the same steps as in the Visual Studio case. But instead of installing Visual Studio, get and install MinGW:
  • The cmake command changes to Batchfile <path-to>\cmake.exe .. -G "MinGW Makefiles"
  • Then run (still in the build folder) Batchfile <path-to>\mingw32-make.exe

Install pkg-config (for CMake)