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echoscu.cc
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/*
*
* Copyright (C) 1994-2021, OFFIS e.V.
* All rights reserved. See COPYRIGHT file for details.
*
* This software and supporting documentation were developed by
*
* OFFIS e.V.
* R&D Division Health
* Escherweg 2
* D-26121 Oldenburg, Germany
*
*
* Module: dcmnet
*
* Author: Andrew Hewett
*
* Purpose: Verification Service Class User (C-ECHO operation)
*
*/
#include "dcmtk/config/osconfig.h" /* make sure OS specific configuration is included first */
#include "dcmtk/dcmnet/dimse.h"
#include "dcmtk/dcmnet/diutil.h"
#include "dcmtk/dcmnet/dcmtrans.h" /* for dcmSocketSend/ReceiveTimeout */
#include "dcmtk/dcmdata/dcfilefo.h"
#include "dcmtk/dcmdata/dcdict.h"
#include "dcmtk/dcmdata/dcuid.h"
#include "dcmtk/dcmdata/cmdlnarg.h"
#include "dcmtk/ofstd/ofconapp.h"
#include "dcmtk/dcmdata/dcuid.h" /* for dcmtk version name */
#include "dcmtk/dcmtls/tlsopt.h" /* for DcmTLSOptions */
#ifdef WITH_ZLIB
#include <zlib.h> /* for zlibVersion() */
#endif
#ifdef PRIVATE_ECHOSCU_DECLARATIONS
PRIVATE_ECHOSCU_DECLARATIONS
#else
#define OFFIS_CONSOLE_APPLICATION "echoscu"
#endif
static OFLogger echoscuLogger = OFLog::getLogger("dcmtk.apps." OFFIS_CONSOLE_APPLICATION);
static char rcsid[] = "$dcmtk: " OFFIS_CONSOLE_APPLICATION " v"
OFFIS_DCMTK_VERSION " " OFFIS_DCMTK_RELEASEDATE " $";
/* default application titles */
#define APPLICATIONTITLE "ECHOSCU"
#define PEERAPPLICATIONTITLE "ANY-SCP"
/* exit codes for this command line tool */
/* (common codes are defined in "ofexit.h" included from "ofconapp.h") */
// network errors
#define EXITCODE_ASSOCIATION_ABORTED 70
static T_DIMSE_BlockingMode opt_blockMode = DIMSE_BLOCKING;
static int opt_dimse_timeout = 0;
static OFCondition cecho(T_ASC_Association * assoc, unsigned long num_repeat);
/* DICOM standard transfer syntaxes */
static const char* transferSyntaxes[] = {
UID_LittleEndianImplicitTransferSyntax, /* default xfer syntax first */
UID_LittleEndianExplicitTransferSyntax,
UID_BigEndianExplicitTransferSyntax,
UID_JPEGProcess1TransferSyntax,
UID_JPEGProcess2_4TransferSyntax,
UID_JPEGProcess3_5TransferSyntax,
UID_JPEGProcess6_8TransferSyntax,
UID_JPEGProcess7_9TransferSyntax,
UID_JPEGProcess10_12TransferSyntax,
UID_JPEGProcess11_13TransferSyntax,
UID_JPEGProcess14TransferSyntax,
UID_JPEGProcess15TransferSyntax,
UID_JPEGProcess16_18TransferSyntax,
UID_JPEGProcess17_19TransferSyntax,
UID_JPEGProcess20_22TransferSyntax,
UID_JPEGProcess21_23TransferSyntax,
UID_JPEGProcess24_26TransferSyntax,
UID_JPEGProcess25_27TransferSyntax,
UID_JPEGProcess28TransferSyntax,
UID_JPEGProcess29TransferSyntax,
UID_JPEGProcess14SV1TransferSyntax,
UID_RLELosslessTransferSyntax,
UID_DeflatedExplicitVRLittleEndianTransferSyntax,
UID_JPEGLSLosslessTransferSyntax,
UID_JPEGLSLossyTransferSyntax,
UID_JPEG2000LosslessOnlyTransferSyntax,
UID_JPEG2000TransferSyntax,
UID_JPEG2000Part2MulticomponentImageCompressionLosslessOnlyTransferSyntax,
UID_JPEG2000Part2MulticomponentImageCompressionTransferSyntax,
UID_MPEG2MainProfileAtMainLevelTransferSyntax,
UID_MPEG2MainProfileAtHighLevelTransferSyntax,
UID_MPEG4HighProfileLevel4_1TransferSyntax,
UID_MPEG4BDcompatibleHighProfileLevel4_1TransferSyntax,
UID_MPEG4HighProfileLevel4_2_For2DVideoTransferSyntax,
UID_MPEG4HighProfileLevel4_2_For3DVideoTransferSyntax,
UID_MPEG4StereoHighProfileLevel4_2TransferSyntax,
UID_HEVCMainProfileLevel5_1TransferSyntax,
UID_HEVCMain10ProfileLevel5_1TransferSyntax
};
// ********************************************
/* helper macro for converting stream output to a string */
#define CONVERT_TO_STRING(output, string) \
optStream.str(""); \
optStream.clear(); \
optStream << output << OFStringStream_ends; \
OFSTRINGSTREAM_GETOFSTRING(optStream, string)
#define SHORTCOL 4
#define LONGCOL 19
int
main(int argc, char *argv[])
{
OFOStringStream optStream;
int result = EXITCODE_NO_ERROR;
const char * opt_peer = "localhost";
OFCmdUnsignedInt opt_port = 104;
const char * opt_peerTitle = PEERAPPLICATIONTITLE;
const char * opt_ourTitle = APPLICATIONTITLE;
OFCmdUnsignedInt opt_maxReceivePDULength = ASC_DEFAULTMAXPDU;
OFCmdUnsignedInt opt_repeatCount = 1;
OFBool opt_abortAssociation = OFFalse;
OFCmdUnsignedInt opt_numXferSyntaxes = 1;
OFCmdUnsignedInt opt_numPresentationCtx = 1;
OFCmdUnsignedInt maxXferSyntaxes = OFstatic_cast(OFCmdUnsignedInt, (DIM_OF(transferSyntaxes)));
int opt_acse_timeout = 30;
OFCmdSignedInt opt_socket_timeout = 60;
DcmTLSOptions tlsOptions(NET_REQUESTOR);
T_ASC_Network *net;
T_ASC_Parameters *params;
DIC_NODENAME peerHost;
T_ASC_Association *assoc;
OFString temp_str;
OFStandard::initializeNetwork();
#ifdef WITH_OPENSSL
DcmTLSTransportLayer::initializeOpenSSL();
#endif
char tempstr[20];
OFConsoleApplication app(OFFIS_CONSOLE_APPLICATION , "DICOM verification (C-ECHO) SCU", rcsid);
OFCommandLine cmd;
cmd.setParamColumn(LONGCOL + SHORTCOL + 4);
cmd.addParam("peer", "hostname of DICOM peer");
cmd.addParam("port", "tcp/ip port number of peer");
cmd.setOptionColumns(LONGCOL, SHORTCOL);
cmd.addGroup("general options:", LONGCOL, SHORTCOL + 2);
cmd.addOption("--help", "-h", "print this help text and exit", OFCommandLine::AF_Exclusive);
cmd.addOption("--version", "print version information and exit", OFCommandLine::AF_Exclusive);
OFLog::addOptions(cmd);
cmd.addGroup("network options:");
cmd.addSubGroup("application entity titles:");
cmd.addOption("--aetitle", "-aet", 1, "[a]etitle: string", "set my calling AE title (default: " APPLICATIONTITLE ")");
cmd.addOption("--call", "-aec", 1, "[a]etitle: string", "set called AE title of peer (default: " PEERAPPLICATIONTITLE ")");
cmd.addSubGroup("association negotiation debugging:");
OFString opt5 = "[n]umber: integer (1..";
sprintf(tempstr, "%ld", OFstatic_cast(long, maxXferSyntaxes));
opt5 += tempstr;
opt5 += ")";
cmd.addOption("--propose-ts", "-pts", 1, opt5.c_str(), "propose n transfer syntaxes");
cmd.addOption("--propose-pc", "-ppc", 1, "[n]umber: integer (1..128)", "propose n presentation contexts");
cmd.addSubGroup("other network options:");
cmd.addOption("--timeout", "-to", 1, "[s]econds: integer (default: unlimited)", "timeout for connection requests");
CONVERT_TO_STRING("[s]econds: integer (default: " << opt_socket_timeout << ")", optString1);
cmd.addOption("--socket-timeout", "-ts", 1, optString1.c_str(), "timeout for network socket (0 for none)");
CONVERT_TO_STRING("[s]econds: integer (default: " << opt_acse_timeout << ")", optString2);
cmd.addOption("--acse-timeout", "-ta", 1, optString2.c_str(), "timeout for ACSE messages");
cmd.addOption("--dimse-timeout", "-td", 1, "[s]econds: integer (default: unlimited)", "timeout for DIMSE messages");
CONVERT_TO_STRING("[n]umber of bytes: integer (" << ASC_MINIMUMPDUSIZE << ".." << ASC_MAXIMUMPDUSIZE << ")", optString3);
CONVERT_TO_STRING("set max receive pdu to n bytes (default: " << opt_maxReceivePDULength << ")", optString4);
cmd.addOption("--max-pdu", "-pdu", 1, optString3.c_str(), optString4.c_str());
cmd.addOption("--repeat", 1, "[n]umber: integer", "repeat n times");
cmd.addOption("--abort", "abort association instead of releasing it");
// add TLS specific command line options if (and only if) we are compiling with OpenSSL
tlsOptions.addTLSCommandlineOptions(cmd);
#ifdef WITH_OPENSSL
cmd.addSubGroup("offline certificate verification:");
cmd.addOption("--verify-cert", "+vc", 1, "[f]ilename: string", "verify certificate against CA settings", OFCommandLine::AF_Exclusive);
cmd.addOption("--is-root-cert", "+rc", 1, "[f]ilename: string", "check if certificate is self-signed root CA", OFCommandLine::AF_Exclusive);
#endif
/* evaluate command line */
prepareCmdLineArgs(argc, argv, OFFIS_CONSOLE_APPLICATION);
if (app.parseCommandLine(cmd, argc, argv))
{
/* check exclusive options first */
if (cmd.hasExclusiveOption())
{
if (cmd.findOption("--version"))
{
app.printHeader(OFTrue /*print host identifier*/);
COUT << OFendl << "External libraries used:";
#if !defined(WITH_ZLIB) && !defined(WITH_OPENSSL)
COUT << " none" << OFendl;
#else
COUT << OFendl;
#endif
#ifdef WITH_ZLIB
COUT << "- ZLIB, Version " << zlibVersion() << OFendl;
#endif
// print OpenSSL version if (and only if) we are compiling with OpenSSL
tlsOptions.printLibraryVersion();
return EXITCODE_NO_ERROR;
}
// check if the command line contains the --list-ciphers option
if (tlsOptions.listOfCiphersRequested(cmd))
{
tlsOptions.printSupportedCiphersuites(app, COUT);
return EXITCODE_NO_ERROR;
}
}
/* command line parameters */
#ifdef WITH_OPENSSL
// special handling for the exclusive options that can only be evaluated
// once all other options have been processed
if ((! cmd.findOption("--verify-cert")) && (! cmd.findOption("--is-root-cert")))
{
cmd.getParam(1, opt_peer);
app.checkParam(cmd.getParamAndCheckMinMax(2, opt_port, 1, 65535));
}
#else
cmd.getParam(1, opt_peer);
app.checkParam(cmd.getParamAndCheckMinMax(2, opt_port, 1, 65535));
#endif
OFLog::configureFromCommandLine(cmd, app);
if (cmd.findOption("--aetitle")) app.checkValue(cmd.getValue(opt_ourTitle));
if (cmd.findOption("--call")) app.checkValue(cmd.getValue(opt_peerTitle));
if (cmd.findOption("--timeout"))
{
OFCmdSignedInt opt_timeout = 0;
app.checkValue(cmd.getValueAndCheckMin(opt_timeout, 1));
dcmConnectionTimeout.set(OFstatic_cast(Sint32, opt_timeout));
}
if (cmd.findOption("--socket-timeout"))
app.checkValue(cmd.getValueAndCheckMin(opt_socket_timeout, -1));
// always set the timeout values since the global default might be different
dcmSocketSendTimeout.set(OFstatic_cast(Sint32, opt_socket_timeout));
dcmSocketReceiveTimeout.set(OFstatic_cast(Sint32, opt_socket_timeout));
if (cmd.findOption("--acse-timeout"))
{
OFCmdSignedInt opt_timeout = 0;
app.checkValue(cmd.getValueAndCheckMin(opt_timeout, 1));
opt_acse_timeout = OFstatic_cast(int, opt_timeout);
}
if (cmd.findOption("--dimse-timeout"))
{
OFCmdSignedInt opt_timeout = 0;
app.checkValue(cmd.getValueAndCheckMin(opt_timeout, 1));
opt_dimse_timeout = OFstatic_cast(int, opt_timeout);
opt_blockMode = DIMSE_NONBLOCKING;
}
if (cmd.findOption("--max-pdu")) app.checkValue(cmd.getValueAndCheckMinMax(opt_maxReceivePDULength, ASC_MINIMUMPDUSIZE, ASC_MAXIMUMPDUSIZE));
if (cmd.findOption("--repeat")) app.checkValue(cmd.getValueAndCheckMin(opt_repeatCount, 1));
if (cmd.findOption("--abort")) opt_abortAssociation=OFTrue;
if (cmd.findOption("--propose-ts")) app.checkValue(cmd.getValueAndCheckMinMax(opt_numXferSyntaxes, 1, maxXferSyntaxes));
if (cmd.findOption("--propose-pc")) app.checkValue(cmd.getValueAndCheckMinMax(opt_numPresentationCtx, 1, 128));
// evaluate (most of) the TLS command line options (if we are compiling with OpenSSL)
tlsOptions.parseArguments(app, cmd);
}
/* print resource identifier */
OFLOG_DEBUG(echoscuLogger, rcsid << OFendl);
/* make sure data dictionary is loaded */
if (!dcmDataDict.isDictionaryLoaded())
{
OFLOG_WARN(echoscuLogger, "no data dictionary loaded, check environment variable: "
<< DCM_DICT_ENVIRONMENT_VARIABLE);
}
/* initialize network, i.e. create an instance of T_ASC_Network*. */
OFCondition cond = ASC_initializeNetwork(NET_REQUESTOR, 0, opt_acse_timeout, &net);
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, DimseCondition::dump(temp_str, cond));
exit(1);
}
/* initialize association parameters, i.e. create an instance of T_ASC_Parameters*. */
cond = ASC_createAssociationParameters(¶ms, opt_maxReceivePDULength);
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, DimseCondition::dump(temp_str, cond));
exit(1);
}
/* create a secure transport layer if requested and OpenSSL is available */
cond = tlsOptions.createTransportLayer(net, params, app, cmd);
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, DimseCondition::dump(temp_str, cond));
exit(1);
}
#ifdef WITH_OPENSSL
if (cmd.findOption( "--verify-cert" ))
{
const char *cert_filename = NULL;
app.checkValue( cmd.getValue( cert_filename ) );
cond = tlsOptions.verifyClientCertificate(cert_filename);
if (cond.good())
{
COUT << "Verification of certificate '" << cert_filename << "' passed." << OFendl;
return EXITCODE_NO_ERROR;
}
else
{
COUT << "Verification of certificate '" << cert_filename << "' failed." << OFendl;
return EXITCODE_INVALID_INPUT_FILE;
}
}
if (cmd.findOption( "--is-root-cert" ))
{
const char *cert_filename = NULL;
app.checkValue( cmd.getValue( cert_filename ) );
cond = tlsOptions.isRootCertificate(cert_filename);
if (cond.good())
{
COUT << "Certificate '" << cert_filename << "' is a valid, self-signed root CA." << OFendl;
return EXITCODE_NO_ERROR;
}
else
{
COUT << "Certificate '" << cert_filename << "' is not a valid, self-signed root CA." << OFendl;
return EXITCODE_INVALID_INPUT_FILE;
}
}
#endif
#ifdef PRIVATE_ECHOSCU_CODE
PRIVATE_ECHOSCU_CODE
#endif
/* sets this application's title and the called application's title in the params */
/* structure. The default values to be set here are "STORESCU" and "ANY-SCP". */
ASC_setAPTitles(params, opt_ourTitle, opt_peerTitle, NULL);
/* Figure out the presentation addresses and copy the */
/* corresponding values into the association parameters.*/
sprintf(peerHost, "%s:%d", opt_peer, OFstatic_cast(int, opt_port));
ASC_setPresentationAddresses(params, OFStandard::getHostName().c_str(), peerHost);
/* Set the presentation contexts which will be negotiated */
/* when the network connection will be established */
int presentationContextID = 1; /* odd byte value 1, 3, 5, .. 255 */
for (unsigned long ii=0; ii<opt_numPresentationCtx; ii++)
{
cond = ASC_addPresentationContext(params, OFstatic_cast(T_ASC_PresentationContextID, presentationContextID),
UID_VerificationSOPClass, transferSyntaxes, OFstatic_cast(int, opt_numXferSyntaxes));
presentationContextID += 2;
if (cond.bad())
{
OFLOG_FATAL(echoscuLogger, DimseCondition::dump(temp_str, cond));
exit(1);
}
}
/* dump presentation contexts if required */
OFLOG_DEBUG(echoscuLogger, "Request Parameters:" << OFendl << ASC_dumpParameters(temp_str, params, ASC_ASSOC_RQ));
/* create association, i.e. try to establish a network connection to another */
/* DICOM application. This call creates an instance of T_ASC_Association*. */
OFLOG_INFO(echoscuLogger, "Requesting Association");
cond = ASC_requestAssociation(net, params, &assoc);
if (cond.bad()) {
if (cond == DUL_ASSOCIATIONREJECTED)
{
T_ASC_RejectParameters rej;
ASC_getRejectParameters(params, &rej);
OFLOG_FATAL(echoscuLogger, "Association Rejected:" << OFendl << ASC_printRejectParameters(temp_str, &rej));
exit(1);
} else {
OFLOG_FATAL(echoscuLogger, "Association Request Failed: " << DimseCondition::dump(temp_str, cond));
exit(1);
}
}
/* dump the presentation contexts which have been accepted/refused */
OFLOG_DEBUG(echoscuLogger, "Association Parameters Negotiated:" << OFendl << ASC_dumpParameters(temp_str, params, ASC_ASSOC_AC));
/* count the presentation contexts which have been accepted by the SCP */
/* If there are none, finish the execution */
if (ASC_countAcceptedPresentationContexts(params) == 0) {
OFLOG_FATAL(echoscuLogger, "No Acceptable Presentation Contexts");
exit(1);
}
/* dump general information concerning the establishment of the network connection if required */
OFLOG_INFO(echoscuLogger, "Association Accepted (Max Send PDV: " << assoc->sendPDVLength << ")");
/* do the real work, i.e. send a number of C-ECHO-RQ messages to the DICOM application */
/* this application is connected with and handle corresponding C-ECHO-RSP messages. */
cond = cecho(assoc, opt_repeatCount);
/* tear down association, i.e. terminate network connection to SCP */
if (cond == EC_Normal)
{
if (opt_abortAssociation) {
OFLOG_INFO(echoscuLogger, "Aborting Association");
cond = ASC_abortAssociation(assoc);
if (cond.bad())
{
OFLOG_FATAL(echoscuLogger, "Association Abort Failed: " << DimseCondition::dump(temp_str, cond));
exit(1);
}
} else {
/* release association */
OFLOG_INFO(echoscuLogger, "Releasing Association");
cond = ASC_releaseAssociation(assoc);
if (cond.bad())
{
OFLOG_FATAL(echoscuLogger, "Association Release Failed: " << DimseCondition::dump(temp_str, cond));
exit(1);
}
}
}
else if (cond == DUL_PEERREQUESTEDRELEASE)
{
OFLOG_FATAL(echoscuLogger, "Protocol Error: Peer requested release (Aborting)");
OFLOG_INFO(echoscuLogger, "Aborting Association");
cond = ASC_abortAssociation(assoc);
result = EXITCODE_ASSOCIATION_ABORTED;// return an error code at the end of main
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, "Association Abort Failed: " << DimseCondition::dump(temp_str, cond));
exit(1);
}
}
else if (cond == DUL_PEERABORTEDASSOCIATION)
{
OFLOG_INFO(echoscuLogger, "Peer Aborted Association");
}
else
{
OFLOG_ERROR(echoscuLogger, "Echo SCU Failed: " << DimseCondition::dump(temp_str, cond));
OFLOG_INFO(echoscuLogger, "Aborting Association");
cond = ASC_abortAssociation(assoc);
result = EXITCODE_ASSOCIATION_ABORTED; // return an error code at the end of main
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, "Association Abort Failed: " << DimseCondition::dump(temp_str, cond));
exit(1);
}
}
/* destroy the association, i.e. free memory of T_ASC_Association* structure. This */
/* call is the counterpart of ASC_requestAssociation(...) which was called above. */
cond = ASC_destroyAssociation(&assoc);
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, DimseCondition::dump(temp_str, cond));
exit(1);
}
/* drop the network, i.e. free memory of T_ASC_Network* structure. This call */
/* is the counterpart of ASC_initializeNetwork(...) which was called above. */
cond = ASC_dropNetwork(&net);
if (cond.bad()) {
OFLOG_FATAL(echoscuLogger, DimseCondition::dump(temp_str, cond));
exit(1);
}
OFStandard::shutdownNetwork();
cond = tlsOptions.writeRandomSeed();
if (cond.bad()) {
// failure to write back the random seed is a warning, not an error
OFLOG_WARN(echoscuLogger, DimseCondition::dump(temp_str, cond));
}
return result;
}
static OFCondition
echoSCU(T_ASC_Association * assoc)
/*
* This function will send a C-ECHO-RQ over the network to another DICOM application
* and handle the response.
*
* Parameters:
* assoc - [in] The association (network connection to another DICOM application).
*/
{
DIC_US msgId = assoc->nextMsgID++;
DIC_US status;
DcmDataset *statusDetail = NULL;
/* dump information if required */
OFLOG_INFO(echoscuLogger, "Sending Echo Request (MsgID " << msgId << ")");
/* send C-ECHO-RQ and handle response */
OFCondition cond = DIMSE_echoUser(assoc, msgId, opt_blockMode, opt_dimse_timeout, &status, &statusDetail);
/* depending on if a response was received, dump some information */
if (cond.good()) {
OFLOG_INFO(echoscuLogger, "Received Echo Response (" << DU_cechoStatusString(status) << ")");
} else {
OFString temp_str;
OFLOG_ERROR(echoscuLogger, "Echo Failed: " << DimseCondition::dump(temp_str, cond));
}
/* check for status detail information, there should never be any */
if (statusDetail != NULL) {
OFLOG_DEBUG(echoscuLogger, "Status Detail (should never be any):" << OFendl << DcmObject::PrintHelper(*statusDetail));
delete statusDetail;
}
/* return result value */
return cond;
}
static OFCondition
cecho(T_ASC_Association * assoc, unsigned long num_repeat)
/*
* This function will send num_repeat C-ECHO-RQ messages to the DICOM application
* this application is connected with and handle corresponding C-ECHO-RSP messages.
*
* Parameters:
* assoc - [in] The association (network connection to another DICOM application).
* num_repeat - [in] The amount of C-ECHO-RQ messages which shall be sent.
*/
{
OFCondition cond = EC_Normal;
unsigned long n = num_repeat;
/* as long as no error occurred and the counter does not equal 0 */
/* send an C-ECHO-RQ and handle the response */
while (cond.good() && n--) cond = echoSCU(assoc);
return cond;
}