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Re: Snort 2.9.0.1 & OpenBSD 4.8 build problems

From: Russ Combs <rcombs () sourcefire com>
Date: Fri, 5 Nov 2010 12:21:01 -0400
On Fri, Nov 5, 2010 at 12:18 PM, Russ Combs <rcombs () sourcefire com> wrote:


Did you configure Snort with --enable-dynamicplugin?



Actually, that should have said try configuring with --enable-dynamicplugin.

Also, can you send your DAQ config.log and output of make when you don't
disable ipfw?



On Fri, Nov 5, 2010 at 12:04 PM, Ross Lawrie <ross () riverstyx net> wrote:


On Fri, 2010-11-05 at 10:52 +0100, rmkml wrote:

Hi Ross,
Could you disable ipfw in daq please?
If not work, please resend (snort) config.log.
Regards
Rmkml



On Thu, 4 Nov 2010, Ross Lawrie wrote:



On 2010-11-04, at 4:20 PM, Russ Combs wrote:



      On Thu, Nov 4, 2010 at 7:01 PM, Ross Lawrie <ross () riverstyx net>

wrote:

            On Thu, 2010-11-04 at 18:18 -0400, Russ Combs wrote:
            >
            >

On Thu, Nov 4, 2010 at 6:12 PM, JJC <cummingsj () gmail com> wrote:
        quickest way for you is to add this to the snort ./configure
        options

        --disable-static-daq

        then when you start snort, add this:

        --daq-dir=/usr/local/lib/daq/

        and voila

The above is an excellent workaround.  If you want to debug farther:

nm /usr/local/lib/libdaq_static.a | grep daq_load_modules

and send the output.  I'm guessing that you will see something like:

00000000000005ab T daq_load_modules

Which means the symbol is there but isn't being found by configure's
test program.

Let me know.



        JJC


        On Thu, Nov 4, 2010 at 3:38 PM, Ross Lawrie
        <ross () riverstyx net> wrote:
        > Hi,
        >
        > I was hoping someone might be able to offer some advice.
         I'm
        > encountered problems installing Snort 2.9.0.1 on OpenBSD
        4.8.  I have
        > installed an updated libpcap (1.1.1), libdnet (1.12) and

DAQ

        (0.3)
        > without any obvious problems.  DAQ seems to install its
        libraries
        > correctly:
        >
        > ls -al /usr/local/lib/libdaq*
        > -rw-r--r--  1 root  wheel  40382 Nov  4 14:26 libdaq.a
        > -rwxr-xr-x  1 root  wheel    926 Nov  4 14:26 libdaq.la
        > -rwxr-xr-x  1 root  wheel  37400 Nov  4 14:26

libdaq.so.0.1

        > -rw-r--r--  1 root  wheel  41460 Nov  4 14:26
        libdaq_static.a
        > -rwxr-xr-x  1 root  wheel    907 Nov  4 14:26
        libdaq_static.la
        > -rw-r--r--  1 root  wheel  61164 Nov  4 14:27
        libdaq_static_modules.a
        > -rwxr-xr-x  1 root  wheel    931 Nov  4 14:27
        libdaq_static_modules.la
        >
        > I'm able to run daq-modules-config and confirm that it is

in

        my path:
        >
        > daq-modules-config --static --libs
        > -L/usr/local/lib -ldaq_static_modules
        >
        > ldconfig sees the libdaq library:
        >
        > ldconfig -Rv /usr/local/lib 2>&1 | grep daq
        > Adding /usr/local/lib/libdaq.so.0.1
        >
        > However when I try to configure Snort I receive this

error:

        >
        > ...
        > checking for pcap_datalink in -lpcap... yes
        > checking for pcap_lex_destroy... no
        > checking for pcap_lib_version... yes
        > checking pcre.h usability... yes
        > checking pcre.h presence... yes
        > checking for pcre.h... yes
        > checking for pcre_compile in -lpcre... yes
        > checking for libpcre version 6.0 or greater... yes
        > checking dnet.h usability... yes
        > checking dnet.h presence... yes
        > checking for dnet.h... yes
        > checking for eth_set in -ldnet... yes
        > checking for dlsym in -ldl... no
        > checking for dlsym in -lc... yes
        > checking for daq_load_modules in -ldaq_static... no
        >
        >   ERROR!  daq_static library not found, go get it from
        >   http://www.snort.org/.
        >
        > The configure string I'm using for Snort is:
        >
        > ./configure \
        > --sysconfdir=/etc/snort \
        > --with-daq-includes=/usr/local/include \
        > --with-daq-libraries=/usr/local/lib \
        > --with-libpcap-includes=/usr/local/include \
        > --with-libpcap-libraries=/usr/local/lib \
        > --with-dnet-includes=/usr/local/include \
        > --with-dnet-libraries=/usr/local/lib
        >
        > I've seen some suggestion that building DAQ without the

ipfw

        module
        > could help, but I still encounter the same issue.
        >
        > Appreciate any suggestions,
        >
        > Ross.
        >




Hi,

JJC: that worked however it looks like Snort's not
building /usr/local/lib/snort_dynamicengine/libsf_engine.so for some
reason now.

Nov  4 15:48:19 snort[17745]: FATAL ERROR: parser.c(5235) Could not

stat

dynamic module path
"/usr/local/lib/snort_dynamicengine/libsf_engine.so": No such file or
directory.


Russ: You're right, the output looks much like you anticipated:

nm /usr/local/lib/libdaq_static.a | grep daq_load_modules
000008c0 T daq_load_modules

I've attached two config.log files, one generated when I try to

include

the static daq libraries, and the other when I configure without them.

Definitely appreciate the help, I haven't had any problems in the past
and this one just has me banging my head against the wall.


OK, now try this:

sudo ldconfig -p | grep daq

Edit /etc/ld.so.conf and add a line with /usr/local/lib.  Then:

sudo ldconfig -v | grep daq


ldconfig's not quite the same on OpenBSD, but I can confirm that the

directory containing daq (/usr/local/lib) is already in the hints for
ldconfig:


ldconfig -rv | grep daq
        search directories:

/usr/lib:/usr/X11R6/lib:/usr/local/lib:/usr/local/lib/daq:/usr/local/lib/snort_dynamicengine:/usr/local/lib/snort_dynamicpreprocessor

        112:-ldaq.0.1 => /usr/local/lib/libdaq.so.0.1

Ross.





How frustrating and embarrassing; I know that I tried this several times
over the last few days as I'd seen it mentioned in one of the few
threads I'd found with similar issues -- and I'd had no results from it.

Anyway, this time (with --disable-ipfw-module used for DAQ 0.3) Snort
was able to configure and build.

That said, I'm now encountering this issue when trying to start Snort:

FATAL ERROR: parser.c(5235) Could not stat dynamic module path
"/usr/local/lib/snort_dynamicengine/libsf_engine.so": No such file or
directory.

Sure enough, that file doesn't exist (no so files are in either
snort_dynamicengine or snort_dynamicprocessor) and I noticed this (or
similar) several times during the make:

...
/bin/sh ../../../libtool --tag=CC    --mode=link gcc  -g -O2
-fvisibility=hidden -fno-strict-aliasing -Wall  -shared -export-dynamic
-module -L/usr/local/lib -L/usr/local/lib -Wl,-R/usr/local/lib -lpcre
-L/usr/local/lib -ldnet -L/usr/local/lib -o libsf_engine.la
-rpath /usr/local/lib/snort_dynamicengine bmh.lo
sf_snort_detection_engine.lo  sf_snort_plugin_api.lo
sf_snort_plugin_byte.lo  sf_snort_plugin_content.lo
sf_snort_plugin_hdropts.lo  sf_snort_plugin_loop.lo
sf_snort_plugin_pcre.lo  sf_snort_plugin_rc4.lo  sfhashfcn.lo sfghash.lo
sfprimetable.lo sf_ip.lo  -ldaq_static -lpcre -lpcap -lm -lm
-L/usr/local/lib -ldaq_static_modules

*** Warning: This system can not link to static lib
archive /usr/local/lib/libdaq_static.la.
*** I have the capability to make that library automatically link in
when
*** you link to this library.  But I can only do this if you have a
*** shared version of the library, which you do not appear to have.
*** But as you try to build a module library, libtool will still create
*** a static module, that should work as long as the dlopening
application
*** is linked with the -dlopen flag to resolve symbols at runtime.
libtool: link: ar
cru .libs/libsf_engine.a .libs/bmh.o .libs/sf_snort_detection_engine.o
.libs/sf_snort_plugin_api.o .libs/sf_snort_plugin_byte.o
.libs/sf_snort_plugin_content.o .libs/sf_snort_plugin_hdropts.o
.libs/sf_snort_plugin_loop.o .libs/sf_snort_plugin_pcre.o
.libs/sf_snort_plugin_rc4.o .libs/sfhashfcn.o .libs/sfghash.o
.libs/sfprimetable.o .libs/sf_ip.
...

I've attached my config.log in case it provides insight.

Ross.


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