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