| Author |
Message
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| chandu.yalamanchili |
 Posted: Wed Sep 23, 2009 12:43 pm Post subject: Issue with security exist |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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Hi,
I'm trying to compile and link on 32bit linux using the commands
gcc -e MQStart -shared -I/opt/mqm/lib -L/usr/lib -lc -lnsl -ldl -lmqmzf_r -o /var/mqm/exits/mquclw mquclw.c
seeing these errors after compiling it
/usr/bin/ld: skipping incompatible /usr/lib/libmqmzf_r.so when searching for -lmqmzf_r
/usr/bin/ld: skipping incompatible /usr/lib/libmqmzf_r.so when searching for -lmqmzf_r
/usr/bin/ld: cannot find -lmqmzf_r
collect2: ld returned 1 exit status
Can anyone shed some on light on this.
Thanks
Chandu |
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| mvic |
| Posted: Wed Sep 23, 2009 2:23 pm Post subject: Re: Issue with security exist |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| chandu.yalamanchili |
| Posted: Wed Sep 23, 2009 2:55 pm Post subject: |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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Thanks for your reply. It is a mistake operating system is 64 bit and used the command
gcc -m64 -shared -fPIC -o /var/mqm/exits64/mquclw mquclw.c -I/opt/mqm/inc -L/opt/mqm/lib64-Wl,-rpath=/opt/mqm/lib64 -Wl,-rpath=/usr/lib64 -lmqm_r
and seeing this error
gcc -m64 -shared -fPIC -o /var/mqm/exits64/mquclw mquclw.c -I/opt/mqm/inc -L/opt/mqm/lib64-Wl,-rpath=/opt/mqm/lib64 -Wl,-rpath=/usr/lib64 -lmqm_r
/usr/bin/ld: skipping incompatible /usr/lib/libmqm_r.so when searching for -lmqm_r
/usr/bin/ld: cannot find -lmqm_r
collect2: ld returned 1 exit status
Please help |
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| mvic |
| Posted: Wed Sep 23, 2009 3:24 pm Post subject: |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| chandu.yalamanchili wrote: |
gcc -m64 -shared -fPIC -o /var/mqm/exits64/mquclw mquclw.c -I/opt/mqm/inc -L/opt/mqm/lib64-Wl,-rpath=/opt/mqm/lib64 -Wl,-rpath=/usr/lib64 -lmqm_r
/usr/bin/ld: skipping incompatible /usr/lib/libmqm_r.so when searching for -lmqm_r
/usr/bin/ld: cannot find -lmqm_r
collect2: ld returned 1 exit status
Please help |
That command is not correct; it's missing some space characters. |
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| chandu.yalamanchili |
| Posted: Wed Sep 23, 2009 4:30 pm Post subject: |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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| I' running same command as it is from the MQ Prog Guide. Can anyone suggest me how to set library path on linux server I think I might be one of the reason. |
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| Mr Butcher |
| Posted: Thu Sep 24, 2009 12:52 am Post subject: |
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Padawan
Joined: 23 May 2005
Posts: 1716
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i am not an expert in this area but
| Quote: |
| usr/bin/ld: skipping incompatible /usr/lib/libmqm_r.so when searching for -lmqm_r |
/usr/lib/ links to /opt/mqm/lib wich holds 32 bit libraries? what you may need is /opt/mqm/lib64 as you compile with 64 bit ?!?
Edit - sorry missed those missing blanks......
_________________
Regards, Butcher |
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| chandu.yalamanchili |
| Posted: Thu Sep 24, 2009 2:47 pm Post subject: |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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I had compiled the mquclw.c program and added module in qm.ini file
ServiceComponent:
Name=mquclw.UNIX.auth.service
Module=/var/mqm/exits/mquclw
Service=AuthorizationService
ComponentDataSize=0
and seeing below errors
AMQ5520: The system could not load the module '/var/mqm/exits/mquclw' for the
installable service 'AuthorizationService' component 'mquclw.auth.service'.
The system return code was 536895861. The Queue Manager is continuing without
this component.
EXPLANATION:
The queue manager configuration data included a stanza for the installable
service 'AuthorizationService' component 'mquclw.auth.service' with the module
'/var/mqm/exits/mquclw'. The system returned 536895861 when it tried to load
this module. The Queue Manager is continuing without this component.
ACTION:
Make sure that the module can be loaded. Put the module into a directory where
the system can load it, and specify its full path and name in the configuration
data . Then stop and restart the queue manager.
Can anyone help me in this.
Thanks
Chandu |
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| chandu.yalamanchili |
| Posted: Fri Sep 25, 2009 12:56 pm Post subject: |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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| chandu.yalamanchili |
| Posted: Fri Sep 25, 2009 1:50 pm Post subject: |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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Enclosing complete error
09/25/2009 03:48:21 PM - Process(22699.1) User(mqm) Program(amqzlaa0)
AMQ6175: The system could not dynamically load the shared library
'/var/mqm/exits/mquclw'. The system returned error message
'/var/mqm/exits/mquclw: undefined symbol: MQZEP'. The queue manager will
continue without this module.
EXPLANATION:
This message applies to UNIX systems. The shared library
'/var/mqm/exits/mquclw' failed to load correctly due to a problem with the
library.
ACTION:
Check the file access permissions and that the file has not been corrupted.
----- amqxufnx.c : 1156 -------------------------------------------------------
09/25/2009 03:48:21 PM - Process(22699.1) User(mqm) Program(amqzlaa0)
AMQ5520: The system could not load the module '/var/mqm/exits/mquclw' for the
installable service 'AuthorizationService' component
'mquclw.UNIX.auth.service'. The system return code was 536895861. The Queue
Manager is continuing without this component.
EXPLANATION:
The queue manager configuration data included a stanza for the installable
service 'AuthorizationService' component 'mquclw.UNIX.auth.service' with the
module '/var/mqm/exits/mquclw'. The system returned 536895861 when it tried to
load this module. The Queue Manager is continuing without this component.
ACTION:
Make sure that the module can be loaded. Put the module into a directory where
the system can load it, and specify its full path and name in the configuration
data . Then stop and restart the queue manager.
and the permissions on the file is
-rwxr-xr-x 1 mqm mqm 4859 Sep 25 15:06 mquclw
and also enclosing the details of the qm.ini file
#*******************************************************************#
#* Module Name: qm.ini *#
#* Type : WebSphere MQ queue manager configuration file *#
# Function : Define the configuration of a single queue manager *#
#* *#
#*******************************************************************#
#* Notes : *#
#* 1) This file defines the configuration of the queue manager *#
#* *#
#*******************************************************************#
ExitPath:
ExitsDefaultPath=/var/mqm/exits
ExitsDefaultPath64=/var/mqm/exits64/
#* *#
#* *#
Log:
LogPrimaryFiles=3
LogSecondaryFiles=6
LogFilePages=10240
LogType=CIRCULAR
LogBufferPages=0
LogPath=/var/mqm/log/EA3TEST/
LogWriteIntegrity=TripleWrite
Service:
Name=AuthorizationService
EntryPoints=13
ServiceComponent:
Service=AuthorizationService
Name=MQSeries.UNIX.auth.service
Module=/opt/mqm/lib/amqzfu
ComponentDataSize=0
ServiceComponent:
Service=AuthorizationService
Name=mquclw.UNIX.auth.service
Sequence=3
Module=/var/mqm/exits/mquclw
ComponentDataSize=0
Channels:
MaxChannels=800
MaxActiveChannels=800
MQIBindType=STANDARD
Any thoughts why I'm seeing this error? |
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| RogerLacroix |
| Posted: Fri Sep 25, 2009 3:21 pm Post subject: |
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Jedi Knight
Joined: 15 May 2001
Posts: 3253
Location: London, ON Canada
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| chandu.yalamanchili wrote: |
The system returned error message
'/var/mqm/exits/mquclw: undefined symbol: MQZEP'. The queue manager will continue without this module. |
Did you install 32-bit or 64-bit version of WMQ. If you installed 64-bit version WMQ then why did you copy the shared library to '/var/mqm/exits/' ?? It should be in '/var/mqm/exits64/'
Secondly, you obviously had a link error that you ignored (missing MQZEP). Do the following command:
and it will show you that you are missing stuff.
Finally, your compile & link command is incorrect. Read the WMQ Application Programming Guide (chapter 15 "Using and writing API exits") for the correct compile & link command (Authorization Service is the same API exit).
Developing MQ exits is an advanced level topic. Unless you are an expert C programming with excellent MQ skills then you should not be doing it. Having your queue manager crash at 2:00AM is not the way to impress your boss.
Regards,
Roger Lacroix
Capitalware Inc.
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Capitalware: Transforming tomorrow into today.
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| chandu.yalamanchili |
| Posted: Mon Sep 28, 2009 9:51 am Post subject: |
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Apprentice
Joined: 29 Jun 2007
Posts: 29
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Thanks for your reply Roger. I'm using MQ 32-bit on LINUX 64-bit. As you said I entered the command
[root@mn1s34009 exits]# ldd mquclw
linux-gate.so.1 => (0xffffe000)
libmqm_r.so => /opt/mqm/lib/libmqm_r.so (0xf7f2e000)
libc.so.6 => /lib/libc.so.6 (0xf7de0000)
libmqz_r.so => /opt/mqm/lib/libmqz_r.so (0xf7c42000)
libmqmcs_r.so => /opt/mqm/lib/libmqmcs_r.so (0xf79c1000)
libmqmzse.so => /opt/mqm/lib/libmqmzse.so (0xf79be000)
libpthread.so.0 => /lib/libpthread.so.0 (0xf79a7000)
libdl.so.2 => /lib/libdl.so.2 (0xf79a3000)
/lib/ld-linux.so.2 (0x0096a000)
but all these files are there under /opt/mqm unable to understand why it has problems to get these lib files. I'm using the same command and link which is in the MQ APG. |
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| gbaddeley |
| Posted: Mon Sep 28, 2009 3:51 pm Post subject: |
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Jedi
Joined: 25 Mar 2003
Posts: 2495
Location: Melbourne, Australia
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FWIW, 536895861 is hex 20006175. This error has also been reported in this post -> http://www.mqseries.net/phpBB/viewtopic.php?p=219747 .
AFAIK, from MQ 6.0 onwards, it needs to be a 64 bit module, and should be stored in /var/mqm/exits64.
_________________
Glenn |
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| RogerLacroix |
| Posted: Wed Sep 30, 2009 12:33 pm Post subject: |
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Jedi Knight
Joined: 15 May 2001
Posts: 3253
Location: London, ON Canada
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| chandu.yalamanchili wrote: |
| I'm using MQ 32-bit on LINUX 64-bit. |
If you are using WMQ 32-bit version then you MUST build 32-bit shared library (exit). Period. No exceptions.
| chandu.yalamanchili wrote: |
| I'm using the same command and link which is in the MQ APG. |
Really. 
This isn't from the manual (and it is building a 64-bit shared library which is wrong for your environment):
| chandu.yalamanchili wrote: |
| gcc -m64 -shared -fPIC -o /var/mqm/exits64/mquclw mquclw.c -I/opt/mqm/inc -L/opt/mqm/lib64-Wl,-rpath=/opt/mqm/lib64 -Wl,-rpath=/usr/lib64 -lmqm_r |
And neither is this:
| chandu.yalamanchili wrote: |
| gcc -e MQStart -shared -I/opt/mqm/lib -L/usr/lib -lc -lnsl -ldl -lmqmzf_r -o /var/mqm/exits/mquclw mquclw.c |
Read the WMQ Application Programming Guide (chapter 15 "Using and writing API exits") for the correct compile & link command (Authorization Service is the same API exit).
| gbaddeley wrote: |
| AFAIK, from MQ 6.0 onwards, it needs to be a 64 bit module, and should be stored in /var/mqm/exits64. |
This is ONLY true if and only if you installed WMQ 64-bit for Linux. If you install WMQ 32-bit for Linux then the user needs to build 32-bit shared libraries and store it in /var/mqm/exits/.
Glenn, as you know, for Intel x86, IBM makes available 2 releases of WMQ: 32-bit (C19LTML) and 64-bit (C19LUML) releases of WMQ.
Regards,
Roger Lacroix
Capitalware Inc.
_________________
Capitalware: Transforming tomorrow into today.
Connected to MQ!
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| gbaddeley |
| Posted: Wed Sep 30, 2009 4:53 pm Post subject: |
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Jedi
Joined: 25 Mar 2003
Posts: 2495
Location: Melbourne, Australia
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| RogerLacroix wrote: |
| gbaddeley wrote: |
| AFAIK, from MQ 6.0 onwards, it needs to be a 64 bit module, and should be stored in /var/mqm/exits64. |
This is ONLY true if and only if you installed WMQ 64-bit for Linux. If you install WMQ 32-bit for Linux then the user needs to build 32-bit shared libraries and store it in /var/mqm/exits/.
Glenn, as you know, for Intel x86, IBM makes available 2 releases of WMQ: 32-bit (C19LTML) and 64-bit (C19LUML) releases of WMQ.
Regards,
Roger Lacroix
Capitalware Inc. |
Roger, thanks for making that crystal clear.
_________________
Glenn |
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