Snort mailing list archives

Re: [Snort-Users] Several problems with snort 2.9.1.2 under OpenBSD 5.0


From: Joel Esler <jesler () sourcefire com>
Date: Sat, 5 Nov 2011 17:14:42 -0400

I've forwarded this to the bugs team.

J

On Nov 5, 2011, at 4:35 PM, carlopmart wrote:

Hi all,

I am trying to install snort 2.9.1.2 under an OpenBSD 5.0 server, but exists several problems. First, during 
compilation, console display a lot of errors, but the most common is:

*** Warning: This system can not link to static lib archive /opt/soft/daq/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.

.. adn others like this on every preprocessor:

In file included from ../include/sf_ip.h:36,
                from ../include/sfPolicy.h:24,
                from ../include/sfPolicyUserData.c:27:
/usr/include/arpa/inet.h:74: warning: 'struct in_addr' declared inside parameter list
/usr/include/arpa/inet.h:74: warning: its scope is only this definition or declaration, which is probably not what 
you want
/usr/include/arpa/inet.h:75: warning: 'struct in_addr' declared inside parameter list

After that, and trying a minimal configuration, some preprocessors are disabled due to problems with the compilation 
process:


snort[15646]: FATAL ERROR: /opt/config/etc/snort-common/snort.conf(64) Unknown preprocessor: "ftp_telnet".

snort[8522]: FATAL ERROR: /opt/config/etc/snort-common/snort.conf(140) Unknown preprocessor: "smtp".

snort[23671]: FATAL ERROR: /opt/config/etc/snort-common/snort.conf(148) Unknown preprocessor: "ssh".

snort[29740]: FATAL ERROR: /opt/config/etc/snort-prod/prod_ids.conf(93) Unknown preprocessor: "ssl".

snort[29740]: FATAL ERROR: /opt/config/etc/snort-prod/prod_ids.conf(93) Unknown preprocessor: "dcerpc2"

... and others like dns preprocessor, too ...

After disabling all these preprocessors, and all rules associated, it seems that all works (only with 10 rules):

Nov  5 20:32:40 eorlingas snort[31702]: Rule application order: 
activation->dynamic->pass->drop->sdrop->reject->alert->log
Nov  5 20:32:40 eorlingas snort[31702]: Verifying Preprocessor Configurations!
Nov  5 20:32:40 eorlingas snort[31702]: ICMP tracking disabled, no ICMP sessions allocated
Nov  5 20:32:40 eorlingas snort[31702]:
Nov  5 20:32:40 eorlingas snort[31702]: [ Port Based Pattern Matching Memory ]
Nov  5 20:32:40 eorlingas snort[31702]: +- [ Aho-Corasick Summary ] -------------------------------------
Nov  5 20:32:40 eorlingas snort[31702]: | Storage Format    : Full-Q
Nov  5 20:32:40 eorlingas snort[31702]: | Finite Automaton  : DFA
Nov  5 20:32:40 eorlingas snort[31702]: | Alphabet Size     : 256 Chars
Nov  5 20:32:40 eorlingas snort[31702]: | Sizeof State      : Variable (1,2,4 bytes)
Nov  5 20:32:40 eorlingas snort[31702]: | Instances         : 6
Nov  5 20:32:40 eorlingas snort[31702]: |     1 byte states : 6
Nov  5 20:32:40 eorlingas snort[31702]: |     2 byte states : 0
Nov  5 20:32:40 eorlingas snort[31702]: |     4 byte states : 0
Nov  5 20:32:40 eorlingas snort[31702]: | Characters        : 239
Nov  5 20:32:40 eorlingas snort[31702]: | States            : 223
Nov  5 20:32:40 eorlingas snort[31702]: | Transitions       : 1022
Nov  5 20:32:40 eorlingas snort[31702]: | State Density     : 1.8%
Nov  5 20:32:40 eorlingas snort[31702]: | Patterns          : 15
Nov  5 20:32:40 eorlingas snort[31702]: | Match States      : 14
Nov  5 20:32:40 eorlingas snort[31702]: | Memory (KB)       : 71.27
Nov  5 20:32:40 eorlingas snort[31702]: |   Pattern         : 1.17
Nov  5 20:32:40 eorlingas snort[31702]: |   Match Lists     : 1.66
Nov  5 20:32:40 eorlingas snort[31702]: |   DFA
Nov  5 20:32:40 eorlingas snort[31702]: |     1 byte states : 57.06
Nov  5 20:32:40 eorlingas snort[31702]: |     2 byte states : 0.00
Nov  5 20:32:40 eorlingas snort[31702]: |     4 byte states : 0.00
Nov  5 20:32:40 eorlingas snort[31702]: +----------------------------------------------------------------
Nov  5 20:32:40 eorlingas snort[31702]: [ Number of patterns truncated to 20 bytes: 3 ]
Nov  5 20:32:40 eorlingas snort[31702]:
Nov  5 20:32:40 eorlingas snort[31702]: Packet Performance Monitor Config:
Nov  5 20:32:40 eorlingas snort[31702]:   ticks per usec  : 2217 ticks
Nov  5 20:32:40 eorlingas snort[31702]:   max packet time : 10000 usecs
Nov  5 20:32:40 eorlingas snort[31702]:   packet action   :
Nov  5 20:32:40 eorlingas snort[31702]: fastpath-expensive-packets
Nov  5 20:32:40 eorlingas snort[31702]:   packet logging  : log
Nov  5 20:32:40 eorlingas snort[31702]:   debug-pkts      : disabled
Nov  5 20:32:40 eorlingas snort[31702]: pcap DAQ configured to passive.
Nov  5 20:32:40 eorlingas snort[31702]: Acquiring network traffic from "em9".
Nov  5 20:32:40 eorlingas snort[31702]: Initializing daemon mode
Nov  5 20:32:40 eorlingas snort[29023]: Daemon initialized, signaled parent pid: 31702
Nov  5 20:32:40 eorlingas snort[29023]: Reload thread starting...
Nov  5 20:32:40 eorlingas snort[29023]: Reload thread started, thread 0x87cd8800 (29023)
Nov  5 20:32:40 eorlingas snort[29023]: Attribute Table Reload Thread Starting...
Nov  5 20:32:40 eorlingas snort[29023]: Attribute Table Reload Thread Started, thread 0x8929cc00 (29023)
Nov  5 20:32:40 eorlingas snort[29023]: Decoding Ethernet
Nov  5 20:32:40 eorlingas snort[29023]: Checking PID path...
Nov  5 20:32:40 eorlingas snort[29023]: PID path stat checked out ok, PID path set to /var/run/
Nov  5 20:32:40 eorlingas snort[29023]: Writing PID "29023" to file "/var/run//snort_em9.pid"



Nov  5 20:32:48 eorlingas snort[29023]:
Nov  5 20:32:48 eorlingas snort[29023]:         --== Initialization Complete ==--
Nov  5 20:32:48 eorlingas snort[29023]: Commencing packet processing (pid=29023)

.. But it is really hard to work with these few preprocessors ... What snort version works well with OpenBSD??

Thanks.


-- 
CL Martinez
carlopmart {at} gmail {d0t} com

-- 
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