[hobbit] hobbit on RH 5.3 server

[Gatis A.]

Hi,

Extracting SELinux AVC messages from audit.log and processing them
through audit2allow you can create custom selinux policies.
for instance:
cat /var/log/audit/audit.log | grep 1247036829.715:51 | audit2allow -m xymon
(if auditd service is not running AVC messages will be in /var/log/messages)

Here is my custom xymon policy:

cat xymon.te

# begin #

module xymon 1.0;

require {
        type ifconfig_t;
        type user_home_t;
        class file getattr;
        class file append;
}

#============= ifconfig_t ==============
allow ifconfig_t user_home_t:file getattr;
allow ifconfig_t user_home_t:file append;

# end #

now you need to compile and load this policy:

# compile module
checkmodule -M -m -o xymon.mod xymon.te
# create policy module package
semodule_package -o xymon.pp -m xymon.mod
# install package
semodule -i xymon.pp
# display all installed modules
semodule -l



On Tue, Jul 7, 2009 at 11:11 PM, McGraw, Robert P<rmcgraw at purdue.edu> wrote:
> On the RH 5.3 hosts I have installed just the client side of
> hobbit.4.2.0.
>
> After a reboot I get the following in the /var/log/messages file:
>
> Jul  7 15:41:37 galileo kernel: type=1400 audit(1246995697.604:109):
> avc:  denied  { append } for  pid=8951 comm="ifconfig"
> path="/local/hobbit/client/tmp/msg.galileo.math.purdue.edu.txt.8937"
> dev=dm-3 ino=294968 scontext=system_u:system_r:ifconfig_t:s0
> tcontext=system_u:object_r:default_t:s0 tclass=file
> Jul  7 15:41:37 galileo kernel: type=1400 audit(1246995697.604:110):
> avc:  denied  { append } for  pid=8951 comm="ifconfig"
> path="/local/hobbit/client/logs/hobbitclient.log" dev=dm-3 ino=294969
> scontext=system_u:system_r:ifconfig_t:s0
> tcontext=user_u:object_r:default_t:s0 tclass=file
> Jul  7 15:41:37 galileo kernel: type=1400 audit(1246995697.624:111):
> avc:  denied  { append } for  pid=8955 comm="ifconfig"
> path="/local/hobbit/client/tmp/msg.galileo.math.purdue.edu.txt.8937"
> dev=dm-3 ino=294968 scontext=system_u:system_r:ifconfig_t:s0
> tcontext=system_u:object_r:default_t:s0 tclass=file
> Jul  7 15:41:37 galileo kernel: type=1400 audit(1246995697.624:112):
> avc:  denied  { append } for  pid=8955 comm="ifconfig"
> path="/local/hobbit/client/logs/hobbitclient.log" dev=dm-3 ino=294969
> scontext=system_u:system_r:ifconfig_t:s0
> tcontext=user_u:object_r:default_t:s0 tclass=file
>
>
> Right after a boot I get the following:
>
> [14][root at galileo]:hobbit/client/logs# ls -alZ
> drwxr-xr-x  bb bb   user_u:object_r:default_t:s0     ./
> drwxr-xr-x  bb bb   user_u:object_r:default_t:s0     ../
> -rw-r--r--  bb bb   system_u:object_r:default_t:s0
> clientlaunch.galileo.math.purdue.edu.pid
> -rw-r--r--  bb bb   user_u:object_r:default_t:s0     clientlaunch.log
> -rw-r--r--  bb bb   user_u:object_r:default_t:s0     hobbitclient.log
>
>
> If I then manually run the init.d/hobbit start script then it shows:
>
> 35][root at galileo]:hobbit/client/logs# ls -alZ
> drwxr-xr-x  bb bb user_u:object_r:default_t:s0     ./
> drwxr-xr-x  bb bb user_u:object_r:default_t:s0     ../
> -rw-r--r--  bb bb user_u:object_r:default_t:s0
> clientlaunch.galileo.math.purdue.edu.pid
> -rw-r--r--  bb bb user_u:object_r:default_t:s0     clientlaunch.log
> -rw-r--r--  bb bb user_u:object_r:default_t:s0     hobbitclient.log
>
> and I do not get the error messages in /var/log.
>
> I know that this is being caused by SELinux, but not sure the best way
> to resolve this problem?
>
> Thanks
>
> Robert
>
>
>
>
>
>
> _____________________________________________________________________
> Robert P. McGraw, Jr.
> Manager, Computer System                    EMAIL: rmcgraw at purdue.edu
> Purdue University                            ROOM: MATH-807
> Department of Mathematics                   PHONE: (765) 494-6055
> 150 N. University Street
> West Lafayette, IN 47907-2067
>
>
>
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>
>