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Re: [rhelv5-list] snort 2.9.0 Centos 5.5
From: Russ Combs <rcombs () sourcefire com>
Date: Thu, 4 Nov 2010 19:36:45 -0400

Can you send a backtrace and a core file for the segfault?

Thanks
Russ

On Thu, Nov 4, 2010 at 6:23 PM, <vincent () cojot name> wrote:


Hi Ovidiu,

There were some other reports on snort-users that 2.9.0.x was segfaulting
on rhel5.5. Like you already did, I found out that the segfault was
related to libpcap1. I also noticed the following:

# snort -i eth0
# snort --daq pcap -i eth0
(segaults immediately after 'Initializing daemon mode')

# snort --daq afpacket -i eth0
(works fine but then it doesn't use pcap).

I do not know yet if we're running into this issue because of
libpcap-1.1.1 or because of my own libpcap1 packaging. I would have to dig
into the daq library and how it calls libpcap for that.

I'm CC'ing the snort-users list on this since it appears at least someone
there (Jason Wallace) knows more about this issue. Jason said that getting
rid of lib/snort_dynamicpreprocessor//lib_sfdynamic_preprocessor_example.so
in
your snort.conf might fix that issue.

Regards,

Vincent

On Thu, 4 Nov 2010, Stanila Ovidiu wrote:

Hi Vincent,

  After allot of try and error tests I discovered that libpcap 1.1.1 was
the
culprit for the Segmentation fault error,  I managed after some
anguishing
compilations (i'm really new to the rpmbuild process, only 2 days ago )
to
build a libpcap 1.0.0 rpm with the specs file from your build.
Thank you for all your help.

Regards,
Ovidiu

On 11/04/2010 07:58 PM, Stanila Ovidiu wrote:
Hello Vincent,

       Thanks allot for your help. I managed to pass that error and
everything  builds just fine, but when i try to run snort i get segfault
:
kernel: device eth0 entered promiscuous mode
Nov  4 10:50:30  kernel: snort[8650]: segfault at 0000000000000010 rip
00000000004a072c rsp 00007fff7d712070 error 4
Nov  4 10:50:30  kernel: device eth0 left promiscuous mode
      I compiled manually these versions and all works just well, I
don't
know what the problem is. I'm at this since the morning and couldn't get
some good rpm's. Can you tell me how did you make the libpcap 1.1.1 rpm?
      I will be glad if you can guide through some checks to see what is
the problems.


Regards,
Ovidiu


On 11/04/2010 06:27 PM, vincent () cojot name wrote:

Hi Stanila,

I'm currently pushing 2.9.0.1-2 rpms built with --enable-zlib on that
website. I don't know if that will have any side-effects but I guess it
won't hurt.

You got the daq_ipq.* errors because daq didn't build the daq_ipq*
modules
on your system (maybe due to a missing library). At any case, I've
changed
the spec file to be more 'flexible', which should help it build on your
system (see daq-0.3-3.el5.src.rpm).

The updated list of RPMS is as follows:

dist/snort/RHEL5/SRPMS/daq-0.3-3.el5.src.rpm
dist/snort/RHEL5/SRPMS/libpcap1-1.1.1-6.el5.src.rpm
dist/snort/RHEL5/SRPMS/snort-2.9.0.1-2.el5.src.rpm
dist/snort/RHEL5/i386/daq-0.3-3.el5.i386.rpm
dist/snort/RHEL5/i386/daq-debuginfo-0.3-3.el5.i386.rpm
dist/snort/RHEL5/i386/snort-2.9.0.1-2.el5.i386.rpm
dist/snort/RHEL5/i386/libpcap1-devel-1.1.1-6.el5.i386.rpm
dist/snort/RHEL5/i386/libpcap1-debuginfo-1.1.1-6.el5.i386.rpm
dist/snort/RHEL5/i386/snort-debuginfo-2.9.0.1-2.el5.i386.rpm
dist/snort/RHEL5/i386/snort-mysql-2.9.0.1-2.el5.i386.rpm
dist/snort/RHEL5/i386/libpcap1-1.1.1-6.el5.i386.rpm
dist/snort/RHEL5/x86_64/libpcap1-devel-1.1.1-6.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/libpcap1-1.1.1-6.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/libpcap1-debuginfo-1.1.1-6.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/daq-debuginfo-0.3-3.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/snort-2.9.0.1-2.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/snort-mysql-2.9.0.1-2.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/snort-debuginfo-2.9.0.1-2.el5.x86_64.rpm
dist/snort/RHEL5/x86_64/daq-0.3-3.el5.x86_64.rpm


I hope this helps,

Vincent

On Thu, 4 Nov 2010, Stanila Ovidiu wrote:

Hi everybody,

     I installed Vincent's
rpm's(
https://www.redhat.com/archives/rhelv5-list/2010-November/msg00001.html)
on my Centos 5.5 system and after the installation when i ran snort -c
/etc/snort/snort.conf -T i got this error:

ERROR: /etc/snort/snort.conf(194) => Invalid keyword 'compress_depth'
for
'global' configuration.
Fatal Error, Quitting..

I read on snort forum that this error appears because snort isn't
compiled with --enable-zlib option. So i installed the src rpm to try
and
compile again snort, but when running rpmbuild i got this error:

checking for daq_load_modules in -ldaq_static... no
  ERROR!  daq_static library not found, go get it from
  http://www.snort.org/.

I tried compiling daq separately, from src rpm provided by vincent,
 but
there i got this error:
RPM build errors:
   File not found: /tmp/daqrpm-0.3/usr/lib64/daq/daq_ipq.la
   File not found: /tmp/daqrpm-0.3/usr/lib64/daq/daq_ipq.so

Could somebody help me, I'm all out of ideas.
I'm kind of new on compiling packages, so any help will be great.

Thank you for your time.

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