On 2/7/07, Stephen Smalley <sds(a)tycho.nsa.gov> wrote:
On Wed, 2007-02-07 at 17:08 +0000, Dan Track wrote:
> Hi Stephen.
>
> I've moved the conversation over to the selinux list. My program is
> actually Beltane which is a web front end for managing samhain ( a
> filesystem integrity checker). The point at which the problem arises
> is when a setuid binary (belatne_cp) wants to write to a file it
> creates in the /tmp directory and then it wants to move that file to
> the /var/lib/yule/profiles directory.
Sounds like you should have a separate domain for that binary, and a
separate type on that directory, so that you can give it the right
permissions without affecting anything else.
> Its at this point I get the
> selinux error:
>
> Feb 7 14:26:10 jupiter kernel: audit(1170858370.177:2547): avc:
> denied { getsession } for pid=555 comm="httpd"
> scontext=root:system_r:httpd_t tcontext=root:system_r:unconfined_t
> tclass=process
Question is what process is the target of this getsid(2) call?
You can find out more information by enabling system call auditing and
retrying. auditctl -e 1 or boot with audit=1 or run auditd.
--
Stephen Smalley
National Security Agency
On 2/7/07, Stephen Smalley <sds(a)tycho.nsa.gov> wrote:
On Wed, 2007-02-07 at 17:08 +0000, Dan Track wrote:
> Hi Stephen.
>
> I've moved the conversation over to the selinux list. My program is
> actually Beltane which is a web front end for managing samhain ( a
> filesystem integrity checker). The point at which the problem arises
> is when a setuid binary (belatne_cp) wants to write to a file it
> creates in the /tmp directory and then it wants to move that file to
> the /var/lib/yule/profiles directory.
Sounds like you should have a separate domain for that binary, and a
separate type on that directory, so that you can give it the right
permissions without affecting anything else.
> Its at this point I get the
> selinux error:
>
> Feb 7 14:26:10 jupiter kernel: audit(1170858370.177:2547): avc:
> denied { getsession } for pid=555 comm="httpd"
> scontext=root:system_r:httpd_t tcontext=root:system_r:unconfined_t
> tclass=process
Question is what process is the target of this getsid(2) call?
You can find out more information by enabling system call auditing and
retrying. auditctl -e 1 or boot with audit=1 or run auditd.
Hi Stephen
Hope things are good.
I enabled the auditctl and got the following in /var/log/messages
Feb 8 10:26:51 jupiter kernel: audit(1170930411.956:2939): avc:
denied { getattr } for pid=6992 comm="beltane_cp"
name="TMPFILuB4KTI" dev=sda3 ino=147701
scontext=root:system_r:httpd_sys_script_t
tcontext=root:object_r:httpd_var_lib_t tclass=file
Feb 8 10:26:51 jupiter kernel: audit(1170930411.956:2939):
arch=40000003 syscall=196 success=no exit=-13 a0=bff6ab9d a1=bfed575c
a2=8a9ff4 a3=bfed575c items=1 pid=6992 auid=4294967295 uid=48 gid=48
euid=0 suid=0 fsuid=0 egid=48 sgid=48 fsgid=48 comm="beltane_cp"
exe="/usr/local/bin/beltane_cp"
Feb 8 10:26:51 jupiter kernel: audit(1170930411.956:2939):
path="/var/lib/yule/profiles/TMPFILuB4KTI"
Feb 8 10:26:51 jupiter kernel: audit(1170930411.956:2939):
cwd="/opt/www/beltane/php"
Feb 8 10:26:51 jupiter kernel: audit(1170930411.956:2939):
name="/var/lib/yule/profiles/TMPFILuB4KTI" flags=0
Feb 8 10:26:51 jupiter kernel: inode=147701 dev=08:03 mode=0100600
ouid=48 ogid=48 rdev=00:00
Hope this helps to figure out what is going on.
Many Thanks
Dan