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203 lines
8.3 KiB
C
203 lines
8.3 KiB
C
/* This work is licensed under a Creative Commons CCZero 1.0 Universal License.
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* See http://creativecommons.org/publicdomain/zero/1.0/ for more information. */
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#include <open62541/server_config_default.h>
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#include <open62541/plugin/accesscontrol_default.h>
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#include <open62541/client_highlevel.h>
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#include <open62541/plugin/log_stdout.h>
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#include <open62541/plugin/securitypolicy.h>
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#include <open62541/server.h>
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#include <open62541/server_config_default.h>
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#include <stdlib.h>
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#include "common.h"
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/* This is a test server to the ci script. It can be used for some of the examples that need a server to connect.
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* It allows to connect with the username "peter" and "paula" and the password "peter123" and "paula123" or "user1" and "password". Anonymus login is also allowed.
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* The server has a method "hello world" and a variable "the answer" that can be written to.
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* The server certificate and private key are loaded from the command line arguments.
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*/
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#define MIN_ARGS 4
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static UA_UsernamePasswordLogin logins[3] = {
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{UA_STRING_STATIC("peter"), UA_STRING_STATIC("peter123")},
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{UA_STRING_STATIC("paula"), UA_STRING_STATIC("paula123")},
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{UA_STRING_STATIC("user1"), UA_STRING_STATIC("password")}
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};
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static UA_StatusCode
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helloWorldMethodCallback(UA_Server *server,
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const UA_NodeId *sessionId, void *sessionHandle,
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const UA_NodeId *methodId, void *methodContext,
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const UA_NodeId *objectId, void *objectContext,
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size_t inputSize, const UA_Variant *input,
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size_t outputSize, UA_Variant *output) {
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UA_String *inputStr = (UA_String*)input->data;
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UA_String tmp = UA_STRING_ALLOC("Hello ");
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if(inputStr->length > 0) {
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tmp.data = (UA_Byte *)UA_realloc(tmp.data, tmp.length + inputStr->length);
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memcpy(&tmp.data[tmp.length], inputStr->data, inputStr->length);
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tmp.length += inputStr->length;
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}
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UA_Variant_setScalarCopy(output, &tmp, &UA_TYPES[UA_TYPES_STRING]);
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UA_String_clear(&tmp);
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UA_LOG_INFO(UA_Log_Stdout, UA_LOGCATEGORY_SERVER, "Hello World was called");
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return UA_STATUSCODE_GOOD;
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}
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static void
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addHelloWorldMethod(UA_Server *server) {
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UA_Argument inputArgument;
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UA_Argument_init(&inputArgument);
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inputArgument.description = UA_LOCALIZEDTEXT("en-US", "A String");
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inputArgument.name = UA_STRING("MyInput");
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inputArgument.dataType = UA_TYPES[UA_TYPES_STRING].typeId;
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inputArgument.valueRank = UA_VALUERANK_SCALAR;
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UA_Argument outputArgument;
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UA_Argument_init(&outputArgument);
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outputArgument.description = UA_LOCALIZEDTEXT("en-US", "A String");
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outputArgument.name = UA_STRING("MyOutput");
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outputArgument.dataType = UA_TYPES[UA_TYPES_STRING].typeId;
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outputArgument.valueRank = UA_VALUERANK_SCALAR;
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UA_MethodAttributes helloAttr = UA_MethodAttributes_default;
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helloAttr.description = UA_LOCALIZEDTEXT("en-US","Say `Hello World`");
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helloAttr.displayName = UA_LOCALIZEDTEXT("en-US","Hello World");
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helloAttr.executable = true;
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helloAttr.userExecutable = true;
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UA_Server_addMethodNode(server, UA_NODEID_NUMERIC(1,62541),
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UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER),
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UA_NODEID_NUMERIC(0, UA_NS0ID_HASCOMPONENT),
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UA_QUALIFIEDNAME(1, "hello world"),
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helloAttr, &helloWorldMethodCallback,
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1, &inputArgument, 1, &outputArgument, NULL, NULL);
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}
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static void
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addVariable(UA_Server *server) {
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/* Define the attribute of the myInteger variable node */
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UA_VariableAttributes attr = UA_VariableAttributes_default;
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UA_Int32 myInteger = 42;
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UA_Variant_setScalar(&attr.value, &myInteger, &UA_TYPES[UA_TYPES_INT32]);
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attr.description = UA_LOCALIZEDTEXT("en-US","the answer");
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attr.displayName = UA_LOCALIZEDTEXT("en-US","the answer");
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attr.dataType = UA_TYPES[UA_TYPES_INT32].typeId;
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attr.accessLevel = UA_ACCESSLEVELMASK_READ | UA_ACCESSLEVELMASK_WRITE;
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/* Add the variable node to the information model */
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UA_NodeId myIntegerNodeId = UA_NODEID_STRING(1, "the.answer");
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UA_QualifiedName myIntegerName = UA_QUALIFIEDNAME(1, "the answer");
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UA_NodeId parentNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_OBJECTSFOLDER);
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UA_NodeId parentReferenceNodeId = UA_NODEID_NUMERIC(0, UA_NS0ID_ORGANIZES);
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UA_Server_addVariableNode(server, myIntegerNodeId, parentNodeId,
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parentReferenceNodeId, myIntegerName,
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UA_NODEID_NUMERIC(0, UA_NS0ID_BASEDATAVARIABLETYPE), attr, NULL, NULL);
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}
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static void
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writeVariable(UA_Server *server) {
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UA_NodeId myIntegerNodeId = UA_NODEID_STRING(1, "the.answer");
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/* Write a different integer value */
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UA_Int32 myInteger = 43;
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UA_Variant myVar;
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UA_Variant_init(&myVar);
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UA_Variant_setScalar(&myVar, &myInteger, &UA_TYPES[UA_TYPES_INT32]);
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UA_Server_writeValue(server, myIntegerNodeId, myVar);
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/* Set the status code of the value to an error code. The function
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* UA_Server_write provides access to the raw service. The above
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* UA_Server_writeValue is syntactic sugar for writing a specific node
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* attribute with the write service. */
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UA_WriteValue wv;
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UA_WriteValue_init(&wv);
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wv.nodeId = myIntegerNodeId;
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wv.attributeId = UA_ATTRIBUTEID_VALUE;
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wv.value.status = UA_STATUSCODE_BADNOTCONNECTED;
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wv.value.hasStatus = true;
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UA_Server_write(server, &wv);
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/* Reset the variable to a good statuscode with a value */
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wv.value.hasStatus = false;
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wv.value.value = myVar;
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wv.value.hasValue = true;
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UA_Server_write(server, &wv);
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}
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int main(int argc, char* argv[]) {
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UA_StatusCode retval = 0;
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UA_Server *server = UA_Server_new();
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UA_ServerConfig *config = UA_Server_getConfig(server);
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#ifdef UA_ENABLE_ENCRYPTION
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UA_ByteString certificate = UA_BYTESTRING_NULL;
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UA_ByteString privateKey = UA_BYTESTRING_NULL;
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UA_UInt16 port = 0;
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if(argc >= 4) {
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/* Load port, certificate and private key */
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port = (UA_UInt16) atoi(argv[1]);
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certificate = loadFile(argv[2]);
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privateKey = loadFile(argv[3]);
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// print the certificat and private key
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printf("certificate: %.*s\n", (int)certificate.length, certificate.data);
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} else {
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UA_LOG_FATAL(UA_Log_Stdout, UA_LOGCATEGORY_USERLAND,
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"Missing arguments. Arguments are "
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"<port> <server-certificate.der> <private-key.der> "
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"[<trustlist1.crl>, ...]");
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return EXIT_SUCCESS;
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}
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/* Load the trustlist */
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size_t trustListSize = 0;
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if(argc > 4)
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trustListSize = (size_t)argc-4;
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UA_STACKARRAY(UA_ByteString, trustList, trustListSize+1);
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for(size_t i = 0; i < trustListSize; i++)
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trustList[i] = loadFile(argv[i+4]);
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/* Loading of an issuer list, not used in this application */
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size_t issuerListSize = 0;
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UA_ByteString *issuerList = NULL;
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/* Loading of a revocation list currently unsupported */
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UA_ByteString *revocationList = NULL;
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size_t revocationListSize = 0;
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retval = UA_ServerConfig_setDefaultWithSecurityPolicies(config, port,
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&certificate, &privateKey,
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trustList, trustListSize,
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issuerList, issuerListSize,
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revocationList, revocationListSize);
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UA_ByteString_clear(&certificate);
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UA_ByteString_clear(&privateKey);
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for(size_t i = 0; i < trustListSize; i++)
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UA_ByteString_clear(&trustList[i]);
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if(retval != UA_STATUSCODE_GOOD)
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goto cleanup;
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#endif
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retval = UA_AccessControl_default(config, true,
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&config->securityPolicies[config->securityPoliciesSize-1].policyUri, 3, logins);
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if(retval != UA_STATUSCODE_GOOD)
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goto cleanup;
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addHelloWorldMethod(server);
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addVariable(server);
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writeVariable(server);
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retval = UA_Server_runUntilInterrupt(server);
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if(retval != UA_STATUSCODE_GOOD)
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goto cleanup;
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cleanup:
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UA_Server_delete(server);
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return retval == UA_STATUSCODE_GOOD ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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