| |
|
RSS Feed - WebSphere MQ Support
|
RSS Feed - Message Broker Support
|
  |
|
| MQ Security exits giving errors |
« View previous topic :: View next topic » |
| Author |
Message
|
| borisyakimov |
 Posted: Fri May 30, 2014 6:23 am Post subject: MQ Security exits giving errors |
 |
|
Newbie
Joined: 30 May 2014
Posts: 2
|
Hello,
We are attempting to make an MQ configuration with a sender channel that uses a compiled security exit, but we are getting an error when starting the channel.
| Quote: |
ERROR:
-------------------------------------------------------------------------------
05/30/14 10:02:18 - Process(11227162.1) User(mqm) Program(runmqchl_nd)
AMQ6179: The system could not find the symbol '' in the dynamically loaded
shared library '/var/mqm/exits64/MQDH001'. The system returned error message
EXPLANATION:
This message applies to UNIX systems. The shared library
'/var/mqm/exits64/MQDH001' does not contain symbol '' or it has not been
exported.
ACTION:
Check that symbol name '' is correct and has been exported from the library.
----- amqxufnx.c : 1425 -------------------------------------------------------
05/30/14 10:02:18 - Process(11227162.1) User(mqm) Program(runmqchl_nd)
AMQ9535: User exit not valid.
EXPLANATION:
Channel program 'CHANNELNAME' ended because user exit 'MQDH001' is not
valid.
ACTION:
Ensure that the user exit is specified correctly in the channel definition, and
that the user exit program is correct and available. |
We have attempted a few different ways of compiling the exits, i.e. :
| Quote: |
| /usr/vacpp/bin/xlc_r -q64 -e MQStart -bE:mqmdh001.exp -o MQMDH001 mqmdh001.c -I ../inc -D_REENTRANT -DUNIX -DHNLUP -DAIX |
Or without an export file :
| Code: |
| /usr/vacpp/bin/xlc_r -q64 -e MQStart -qmkshrobj -o MQDH001 mqmdh001.c -I ../inc -D_REENTRANT -DUNIX -DHNLUP -DAIX |
As well as using some the lib64 libraries :
| Quote: |
| /usr/vacpp/bin/xlc_r -q64 -e MQStart -bE:mqmdh001.exp -o MQDH001 mqmdh001.c -I ../inc -D_REENTRANT -DUNIX -DHNLUP -DAIX -L ../lib64 -lmqutl_r |
The C code that we used to compile the exit is:
| Code: |
/*----------------------------------------------------------------------------*/
/* */
/* Filename: mqmdh001.c Sample Sender security exit */
/* */
/* */
/* replace "A000Userid Password" for your company */
/* "A000" + 8 character userid + 8 charaacter password */
/* case is important!!! */
/* */
/* standard headers */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef AIX
#include <langinfo.h>
#endif
#include <sys/types.h>
#include <sys/timeb.h>
#include <time.h>
/* MQSeries headers */
#include <cmqc.h>
#include <cmqxc.h>
/* testing headers */
#include <time.h>
/* dummy function used as entry point to exit, only needed AIX boxes */
void MQStart() {;} /* dummy entry point */
void MQENTRY MQMDH001( PMQCXP pChannelExitParms,
PMQCD pChannelDefinition,
PMQLONG pDataLength,
PMQLONG pAgentBufferLength,
PMQBYTE AgentBuffer,
PMQLONG pExitBufferLength,
PMQPTR pExitBufferAddr)
{
char Channel_Logfile[] = "/var/mqm/log/MQMDH001.log";
FILE * fp;
/* for test purposes */
char TimeBuffer[100];
struct tm *pNow=NULL;
time_t MyTime;
/* open the log file */
fp = fopen(Channel_Logfile,"a+");
pChannelExitParms->ExitResponse = MQXCC_OK;
pChannelExitParms->Feedback = 0;
switch( pChannelExitParms-> ExitReason )
{
case MQXR_INIT:
MyTime=time(NULL);
pNow=localtime(&MyTime);
strftime(TimeBuffer, sizeof(TimeBuffer),
"\nScy exit called for INIT at %A %B %d, %Y at %I:%M %p\n", pNow);
fprintf(fp, "%s", TimeBuffer);
break;
case MQXR_INIT_SEC:
*pDataLength = 9;
pChannelExitParms->ExitResponse = MQXCC_SEND_SEC_MSG;
strncpy((char *)AgentBuffer, "WHOAREYOU\0", 10);
fprintf(fp,"Scy exit called for INIT_SEC, resp=%d, buff=%s\n", pChannelExitParms->ExitResponse, (char *)AgentBuffer);
break;
case MQXR_SEC_MSG:
fprintf(fp,"Scy exit called for SEC_MSG, resp=%d, buff=%.10s\n", pChannelExitParms->ExitResponse, (char *)AgentBuffer);
*pDataLength = 20;
pChannelExitParms->ExitResponse = MQXCC_SEND_SEC_MSG;
/******CHANGE userid/password in the following line:********/
strncpy((char *)AgentBuffer, "pass", 21);
/******END OF CHANGE userid/password: **********************/
fprintf(fp,"Scy exit called for SEC_MSG, resp=%d, buff=%.10s\n", pChannelExitParms->ExitResponse, (char *)AgentBuffer);
break;
case MQXR_TERM:
fprintf(fp,"Scy exit called for TERM\n");
break;
default:
fprintf(fp,"Scy exit called with invalid reason code: %d\n", pChannelExitParms-> ExitReason);
break;
} /* switch */
fclose(fp);
return;
} /* END OF void MQENTRY MQMDH001( */ |
Here is the sender channel definition, with some values omited as the they are company confidential:
SENDER CHANNEL :
CHANNEL("CHANNELNAME") CHLTYPE(SDR)
ALTDATE(2014-05-23) ALTTIME(10.22.2
BATCHHB(0) BATCHINT(0)
BATCHSZ(50) COMPHDR(NONE)
COMPMSG(NONE) CONNAME("IPADDR"("PORT"))
CONVERT(NO) DESCR( )
DISCINT(300) HBINT(300)
KAINT(AUTO) LOCLADDR( )
LONGRTY(999999999) LONGTMR(1200)
MAXMSGL(4194304) MCANAME( )
MCATYPE(PROCESS) MCAUSER( )
MODENAME( ) MONCHL(QMGR)
MSGDATA( ) MSGEXIT( )
NPMSPEED(FAST) PASSWORD( )
RCVDATA( ) RCVEXIT( )
SCYDATA( ) SCYEXIT(MQMDH001)
SENDDATA( ) SENDEXIT( )
SEQWRAP(999999999) SHORTRTY(10)
SHORTTMR(60) SSLCIPH( )
SSLPEER( ) STATCHL(QMGR)
TPNAME( ) TRPTYPE(TCP)
USERID( ) XMITQ("XMITQNAME")
As I was unable to find much info on the internet, I am asking for your advise.
Thanks in advance. |
|
| Back to top |
|
 |
| PaulClarke |
| Posted: Fri May 30, 2014 8:21 am Post subject: |
|
|
Grand Master
Joined: 17 Nov 2005
Posts: 1002
Location: New Zealand
|
On the Distributed platforms a channel exit consists of the names of the library AND the name of the entrypoint you want to call. In your case these seem to be the same value but they don't need to be.
So, try changing your channel definition to say....
SCYDATA( ) SCYEXIT('MQMDH001(MQMDH001)')
Cheers,
P.
_________________
Paul Clarke
MQGem Software
www.mqgem.com |
|
| Back to top |
|
|
| fjb_saper |
| Posted: Sat May 31, 2014 3:39 am Post subject: |
|
|
Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
|
| Quote: |
Or without an export file :
| Code: |
/usr/vacpp/bin/xlc_r -q64 -e MQStart -qmkshrobj -o MQDH001 mqmdh001.c -I ../inc -D_REENTRANT -DUNIX -DHNLUP -DAIX |
As well as using some the lib64 libraries :
| Code: |
/usr/vacpp/bin/xlc_r -q64 -e MQStart -bE:mqmdh001.exp -o MQDH001 mqmdh001.c -I ../inc -D_REENTRANT -DUNIX -DHNLUP -DAIX -L ../lib64 -lmqutl_r |
|
Note that entry point MQDH001 does not match the code using entry point MQMDH001. Also don't you need an EXPORT statement on your compile / link command when not providing that statement in the export file??
Have fun 
_________________
MQ & Broker admin |
|
| Back to top |
|
|
| RogerLacroix |
| Posted: Mon Jun 02, 2014 11:39 am Post subject: |
|
|
Jedi Knight
Joined: 15 May 2001
Posts: 3264
Location: London, ON Canada
|
Hi Boris,
If you are trying to connect to DTCC then why don't you look at the open source project called SX4DTCC
Regards,
Roger Lacroix
Capitalware Inc.
_________________
Capitalware: Transforming tomorrow into today.
Connected to MQ!
Twitter |
|
| Back to top |
|
|
| borisyakimov |
| Posted: Fri Jun 13, 2014 3:59 am Post subject: [RESOLVED] |
|
|
Newbie
Joined: 30 May 2014
Posts: 2
|
Hello Guys,
Thanks a bunch for the help. We have managed to resolve the issue. It was exactly as "PaulClarke" suggested :
| Quote: |
On the Distributed platforms a channel exit consists of the names of the library AND the name of the entrypoint you want to call. In your case these seem to be the same value but they don't need to be.
So, try changing your channel definition to say....
SCYDATA( ) SCYEXIT('MQMDH001(MQMDH001)') |
The issue was that on UNIX systems we do not actually use the path to the exit, but the library name and the function in it.
 |
|
| Back to top |
|
|
| gbaddeley |
| Posted: Sun Jun 15, 2014 3:34 pm Post subject: |
|
|
Jedi Knight
Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia
|
| Code: |
| char Channel_Logfile[] = "/var/mqm/log/MQMDH001.log"; |
Don't use the "log" directory for exits logs, it is reserved for MQ recovery logs. I suggest that you use the exits64 directory itself, that's what most exits use.
_________________
Glenn |
|
| Back to top |
|
|
|
|
|
| |
|
Page 1 of 1 |
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
|
|
|
