FC5 LDAP issues

[Jason L Tibbitts III]

I've noticed that the behavior of my FC5 system differs dramatically
depending on whether nscd is running.  User info is stored in LDAP,
and if nscd is running then applications talk to it.  But if it's not
running then the applications (or libc, at least) talk to the network
themselves.  This gets denied by selinux and things break.  Most
notably, the system won't even boot, because dbus just hangs forever
spewing AVC messages to the console.

So I wonder if the intention is to make nscd mandatory, or if failures
due to a lack of nscd are considered problematic.  I have nothing
against nscd, but I don't generally turn it on until after the system
boots and has time to pull down configuration information so that
encrypted ldap works.  Obviously I'll be reworking my installation
scripts to work around this.

 - J<

[Stephen Smalley]

On Thu, 2006-03-30 at 13:42 -0600, Jason L Tibbitts III wrote:
>  I've noticed that the behavior of my FC5 system differs
> dramatically
>  depending on whether nscd is running.  User info is stored in LDAP,
>  and if nscd is running then applications talk to it.  But if it's not
>  running then the applications (or libc, at least) talk to the network
>  themselves.  This gets denied by selinux and things break.  Most
>  notably, the system won't even boot, because dbus just hangs forever
>  spewing AVC messages to the console.
>  
>  So I wonder if the intention is to make nscd mandatory, or if failures
>  due to a lack of nscd are considered problematic.  I have nothing
>  against nscd, but I don't generally turn it on until after the system
>  boots and has time to pull down configuration information so that
>  encrypted ldap works.  Obviously I'll be reworking my installation
>  scripts to work around this. 
Does 'setsebool -P allow_ypbind=1' help?  Same issue applies for NIS
(w/o nscd), and that boolean is intended to allow necessary network
access.

-- 
Stephen Smalley
National Security Agency

[Jason L Tibbitts III]

I realize that the issue is more complicated, because even with nscd
turned on, dbus-daemon still fails to start.  It's looking in
/etc/pki:

Mar 30 13:50:33 util10 kernel: audit(1143748233.484:304): avc:  denied  { search } for 
pid=1711 comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=dir

I wonder if I have broken something.

 - J<

[Daniel J Walsh]

Jason L Tibbitts III wrote:
>  I realize that the issue is more complicated, because even with nscd
>  turned on, dbus-daemon still fails to start.  It's looking in
>  /etc/pki:
>
>  Mar 30 13:50:33 util10 kernel: audit(1143748233.484:304): avc:  denied  { search } for 
> pid=1711 comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=dir
>
>  I wonder if I have broken something.
>
>   - J<
>
>  --
>  fedora-selinux-list mailing list
>  fedora-selinux-list(a)redhat.com
>  https://www.redhat.com/mailman/listinfo/fedora-selinux-list
>     
Can you setenforce now and then start it up, please collect all of the 
avc messages.

[Jason L Tibbitts III]

> >>>> "DJW" == Daniel J Walsh <Daniel>
> writes: 
DJW> Can you setenforce now and then start it up, please collect all
DJW> of the avc messages.

Since I can't even boot in enforcing mode, I'm running in permissive
mode and just after boot I have 24 denials.  Many of these are
probably normal but several are looking in /etc/pki for various
certs.  These are probably related to LDAP; /etc/ldap.conf requires
encryption so anything that needs to look at users or groups before
nscd starts will need to see the certs.

>  cat /etc/ldap.conf 
base dc=blah
uri ldaps://xxxx ldaps://yyyy ldaps://zzzz
bind_timelimit 3
idle_timelimit 3600
tls_checkpeer yes
tls_cacertfile /etc/pki/cacert.pem

>  sestatus 
SELinux status:                 enabled
SELinuxfs mount:                /selinux
Current mode:                   permissive
Mode from config file:          permissive
Policy version:                 20
Policy from config file:        targeted

>  dmesg|grep avc 
audit(1143749462.567:2): avc:  denied  { search
} for  pid=659 comm="pam_console_app" name="var" dev=dm-0 ino=98305
scontext=system_u:system_r:pam_console_t:s0-s0:c0.c255
tcontext=system_u:object_r:file_t:s0 tclass=dir
audit(1143749475.708:3): avc:  denied  { read } for  pid=1261 comm="fsck"
name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:fsadm_t:s0
tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749475.708:4): avc:  denied  { getattr } for  pid=1261 comm="fsck"
name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:fsadm_t:s0
tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749475.772:5): avc:  denied  { read } for  pid=1263 comm="fsck.ext3"
name="mtab" dev=dm-0 ino=167311 scontext=system_u:system_r:fsadm_t:s0
tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749475.772:6): avc:  denied  { getattr } for  pid=1263
comm="fsck.ext3" name="mtab" dev=dm-0 ino=167311
scontext=system_u:system_r:fsadm_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749476.672:7): avc:  denied  { write } for  pid=1279 comm="mount"
name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749476.672:8): avc:  denied  { unlink } for  pid=1279 comm="mount"
name="blkid.tab.old" dev=dm-0 ino=165330 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749476.672:9): avc:  denied  { link } for  pid=1279 comm="mount"
name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:file_t:s0 tclass=file
audit(1143749708.498:10): avc:  denied  { search } for  pid=1719
comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=dir
audit(1143749708.498:11): avc:  denied  { read } for  pid=1719
comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=file
audit(1143749708.498:12): avc:  denied  { getattr } for  pid=1719
comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=file
audit(1143749708.498:13): avc:  denied  { read } for  pid=1719
comm="dbus-daemon" name="cert.pem" dev=dm-0 ino=164178
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=lnk_file
audit(1143749710.051:14): avc:  denied  { mounton } for  pid=1773 comm="mount"
name="mail" dev=dm-4 ino=589827 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:mail_spool_t:s0 tclass=dir
audit(1143749711.663:15): avc:  denied  { read } for  pid=1950 comm="automount"
name="cacert.pem" dev=dm-0 ino=165663 scontext=system_u:system_r:automount_t:s0
tcontext=system_u:object_r:cert_t:s0 tclass=file
audit(1143749711.663:16): avc:  denied  { getattr } for  pid=1950
comm="automount" name="cacert.pem" dev=dm-0 ino=165663
scontext=system_u:system_r:automount_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=file
audit(1143749711.663:17): avc:  denied  { read } for  pid=1950 comm="automount"
name="cert.pem" dev=dm-0 ino=164178 scontext=system_u:system_r:automount_t:s0
tcontext=system_u:object_r:cert_t:s0 tclass=lnk_file
audit(1143749720.792:18): avc:  denied  { getattr } for  pid=2240 comm="hald"
name="/" dev=dm-1 ino=2 scontext=system_u:system_r:hald_t:s0
tcontext=system_u:object_r:default_t:s0 tclass=dir
audit(1143749720.792:19): avc:  denied  { search } for  pid=2240 comm="hald"
name="spool" dev=dm-4 ino=589825 scontext=system_u:system_r:hald_t:s0
tcontext=system_u:object_r:var_spool_t:s0 tclass=dir
audit(1143749801.841:20): avc:  denied  { write } for  pid=2352 comm="mount"
name="socket" dev=dm-4 ino=917527 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=sock_file
audit(1143749801.841:21): avc:  denied  { connectto } for  pid=2352 comm="mount"
name="socket" scontext=system_u:system_r:mount_t:s0
tcontext=system_u:system_r:nscd_t:s0 tclass=unix_stream_socket
audit(1143749801.841:22): avc:  denied  { use } for  pid=2352 comm="mount"
name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:system_r:nscd_t:s0 tclass=fd
audit(1143749801.841:23): avc:  denied  { read } for  pid=2352 comm="mount"
name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
audit(1143749801.841:24): avc:  denied  { getattr } for  pid=2352 comm="mount"
name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
audit(1143749801.869:25): avc:  denied  { getattr } for  pid=2240 comm="hald"
name="/" dev=dm-1 ino=2 scontext=system_u:system_r:hald_t:s0
tcontext=system_u:object_r:default_t:s0 tclass=dir

 - J<

[Daniel J Walsh]

Jason L Tibbitts III wrote:
> >>>>> "DJW" == Daniel J Walsh <Daniel>
> writes:
> >>>>>             
>
>  DJW> Can you setenforce now and then start it up, please collect all
>  DJW> of the avc messages.
>
>  Since I can't even boot in enforcing mode, I'm running in permissive
>  mode and just after boot I have 24 denials.  Many of these are
>  probably normal but several are looking in /etc/pki for various
>  certs.  These are probably related to LDAP; /etc/ldap.conf requires
>  encryption so anything that needs to look at users or groups before
>  nscd starts will need to see the certs.
>
>    
> > cat /etc/ldap.conf
> >     
>  base dc=blah
>  uri ldaps://xxxx ldaps://yyyy ldaps://zzzz
>  bind_timelimit 3
>  idle_timelimit 3600
>  tls_checkpeer yes
>  tls_cacertfile /etc/pki/cacert.pem
>
>    
> > sestatus
> >     
>  SELinux status:                 enabled
>  SELinuxfs mount:                /selinux
>  Current mode:                   permissive
>  Mode from config file:          permissive
>  Policy version:                 20
>  Policy from config file:        targeted
>
>    
> > dmesg|grep avc
> >     
>  audit(1143749462.567:2): avc:  denied  { search } for  pid=659
> comm="pam_console_app" name="var" dev=dm-0 ino=98305
> scontext=system_u:system_r:pam_console_t:s0-s0:c0.c255
> tcontext=system_u:object_r:file_t:s0 tclass=dir
>  audit(1143749475.708:3): avc:  denied  { read } for  pid=1261 comm="fsck"
> name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:fsadm_t:s0
> tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749475.708:4): avc:  denied  { getattr } for  pid=1261 comm="fsck"
> name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:fsadm_t:s0
> tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749475.772:5): avc:  denied  { read } for  pid=1263 comm="fsck.ext3"
> name="mtab" dev=dm-0 ino=167311 scontext=system_u:system_r:fsadm_t:s0
> tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749475.772:6): avc:  denied  { getattr } for  pid=1263
> comm="fsck.ext3" name="mtab" dev=dm-0 ino=167311
> scontext=system_u:system_r:fsadm_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749476.672:7): avc:  denied  { write } for  pid=1279 comm="mount"
> name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749476.672:8): avc:  denied  { unlink } for  pid=1279 comm="mount"
> name="blkid.tab.old" dev=dm-0 ino=165330 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749476.672:9): avc:  denied  { link } for  pid=1279 comm="mount"
> name="blkid.tab" dev=dm-0 ino=167310 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:file_t:s0 tclass=file
>  audit(1143749708.498:10): avc:  denied  { search } for  pid=1719
> comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=dir
>  audit(1143749708.498:11): avc:  denied  { read } for  pid=1719
> comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=file
>  audit(1143749708.498:12): avc:  denied  { getattr } for  pid=1719
> comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=file
>  audit(1143749708.498:13): avc:  denied  { read } for  pid=1719
> comm="dbus-daemon" name="cert.pem" dev=dm-0 ino=164178
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=lnk_file
>  audit(1143749710.051:14): avc:  denied  { mounton } for  pid=1773 comm="mount"
> name="mail" dev=dm-4 ino=589827 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:mail_spool_t:s0 tclass=dir
>  audit(1143749711.663:15): avc:  denied  { read } for  pid=1950 comm="automount"
> name="cacert.pem" dev=dm-0 ino=165663 scontext=system_u:system_r:automount_t:s0
> tcontext=system_u:object_r:cert_t:s0 tclass=file
>  audit(1143749711.663:16): avc:  denied  { getattr } for  pid=1950
> comm="automount" name="cacert.pem" dev=dm-0 ino=165663
> scontext=system_u:system_r:automount_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=file
>  audit(1143749711.663:17): avc:  denied  { read } for  pid=1950 comm="automount"
> name="cert.pem" dev=dm-0 ino=164178 scontext=system_u:system_r:automount_t:s0
> tcontext=system_u:object_r:cert_t:s0 tclass=lnk_file
>  audit(1143749720.792:18): avc:  denied  { getattr } for  pid=2240 comm="hald"
> name="/" dev=dm-1 ino=2 scontext=system_u:system_r:hald_t:s0
> tcontext=system_u:object_r:default_t:s0 tclass=dir
>  audit(1143749720.792:19): avc:  denied  { search } for  pid=2240 comm="hald"
> name="spool" dev=dm-4 ino=589825 scontext=system_u:system_r:hald_t:s0
> tcontext=system_u:object_r:var_spool_t:s0 tclass=dir
>  audit(1143749801.841:20): avc:  denied  { write } for  pid=2352 comm="mount"
> name="socket" dev=dm-4 ino=917527 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=sock_file
>  audit(1143749801.841:21): avc:  denied  { connectto } for  pid=2352
> comm="mount" name="socket" scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:system_r:nscd_t:s0 tclass=unix_stream_socket
>  audit(1143749801.841:22): avc:  denied  { use } for  pid=2352 comm="mount"
> name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:system_r:nscd_t:s0 tclass=fd
>  audit(1143749801.841:23): avc:  denied  { read } for  pid=2352 comm="mount"
> name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
>  audit(1143749801.841:24): avc:  denied  { getattr } for  pid=2352 comm="mount"
> name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
>  audit(1143749801.869:25): avc:  denied  { getattr } for  pid=2240 comm="hald"
> name="/" dev=dm-1 ino=2 scontext=system_u:system_r:hald_t:s0
> tcontext=system_u:object_r:default_t:s0 tclass=dir
>
>   - J<
>     
Looks like you have a labeling problem.   Your var partition looks like 
it is labeled file_t.  So if you relabel things might clear up

touch /.autorelabel
reboot

[Jason L Tibbitts III]

> >>>> "DJW" == Daniel J Walsh <Daniel>
> writes: 
DJW> Looks like you have a labeling problem.

The system relabeled itself as part of the boot.  But I've forced
another relabel and there are eight fewer messages:

audit(1143750802.325:2): avc:  denied  { search } for  pid=636
comm="pam_console_app" name="var" dev=dm-0 ino=98305
scontext=system_u:system_r:pam_console_t:s0-s0:c0.c255
tcontext=system_u:object_r:file_t:s0 tclass=dir
audit(1143751052.509:3): avc:  denied  { search } for  pid=1723
comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=dir
audit(1143751052.509:4): avc:  denied  { read } for  pid=1723 comm="dbus-daemon"
name="cacert.pem" dev=dm-0 ino=165663
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=file
audit(1143751052.517:5): avc:  denied  { getattr } for  pid=1723
comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=file
audit(1143751052.521:6): avc:  denied  { read } for  pid=1723 comm="dbus-daemon"
name="cert.pem" dev=dm-0 ino=164178 scontext=system_u:system_r:system_dbusd_t:s0
tcontext=system_u:object_r:cert_t:s0 tclass=lnk_file
audit(1143751053.465:7): avc:  denied  { mounton } for  pid=1777 comm="mount"
name="mail" dev=dm-4 ino=589827 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:mail_spool_t:s0 tclass=dir
audit(1143751055.021:8): avc:  denied  { read } for  pid=1954 comm="automount"
name="cacert.pem" dev=dm-0 ino=165663 scontext=system_u:system_r:automount_t:s0
tcontext=system_u:object_r:cert_t:s0 tclass=file
audit(1143751055.021:9): avc:  denied  { getattr } for  pid=1954
comm="automount" name="cacert.pem" dev=dm-0 ino=165663
scontext=system_u:system_r:automount_t:s0 tcontext=system_u:object_r:cert_t:s0
tclass=file
audit(1143751055.025:10): avc:  denied  { read } for  pid=1954 comm="automount"
name="cert.pem" dev=dm-0 ino=164178 scontext=system_u:system_r:automount_t:s0
tcontext=system_u:object_r:cert_t:s0 tclass=lnk_file
audit(1143751064.226:11): avc:  denied  { getattr } for  pid=2244 comm="hald"
name="/" dev=dm-1 ino=2 scontext=system_u:system_r:hald_t:s0
tcontext=system_u:object_r:default_t:s0 tclass=dir
audit(1143751064.230:12): avc:  denied  { search } for  pid=2244 comm="hald"
name="spool" dev=dm-4 ino=589825 scontext=system_u:system_r:hald_t:s0
tcontext=system_u:object_r:var_spool_t:s0 tclass=dir
audit(1143751066.602:13): avc:  denied  { write } for  pid=2341 comm="mount"
name="socket" dev=dm-4 ino=917527 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=sock_file
audit(1143751066.602:14): avc:  denied  { connectto } for  pid=2341 comm="mount"
name="socket" scontext=system_u:system_r:mount_t:s0
tcontext=system_u:system_r:nscd_t:s0 tclass=unix_stream_socket
audit(1143751066.606:15): avc:  denied  { use } for  pid=2341 comm="mount"
name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:system_r:nscd_t:s0 tclass=fd
audit(1143751066.606:16): avc:  denied  { read } for  pid=2341 comm="mount"
name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
audit(1143751066.606:17): avc:  denied  { getattr } for  pid=2341 comm="mount"
name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file

I had been running with selinux disabled for some time, but when I
enabled it earlier today the system relabeled itself and then it did
so again when I switched to permissive.  Does the boot-time relabel
log the changes it makes?  I'd like to see why the third relabel
changed things.

In any case, there are still the cert failures which will keep the
machine from booting.

 - J<

[Daniel J Walsh]

Jason L Tibbitts III wrote:
> >>>>> "DJW" == Daniel J Walsh <Daniel>
> writes:
> >>>>>             
>
>  DJW> Looks like you have a labeling problem.
>
>  The system relabeled itself as part of the boot.  But I've forced
>  another relabel and there are eight fewer messages:
>
>  audit(1143750802.325:2): avc:  denied  { search } for  pid=636
> comm="pam_console_app" name="var" dev=dm-0 ino=98305
> scontext=system_u:system_r:pam_console_t:s0-s0:c0.c255
> tcontext=system_u:object_r:file_t:s0 tclass=dir
>  audit(1143751052.509:3): avc:  denied  { search } for  pid=1723
> comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=dir
>  audit(1143751052.509:4): avc:  denied  { read } for  pid=1723
> comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=file
>  audit(1143751052.517:5): avc:  denied  { getattr } for  pid=1723
> comm="dbus-daemon" name="cacert.pem" dev=dm-0 ino=165663
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=file
>  audit(1143751052.521:6): avc:  denied  { read } for  pid=1723
> comm="dbus-daemon" name="cert.pem" dev=dm-0 ino=164178
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=lnk_file
>  audit(1143751053.465:7): avc:  denied  { mounton } for  pid=1777 comm="mount"
> name="mail" dev=dm-4 ino=589827 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:mail_spool_t:s0 tclass=dir
>  audit(1143751055.021:8): avc:  denied  { read } for  pid=1954 comm="automount"
> name="cacert.pem" dev=dm-0 ino=165663 scontext=system_u:system_r:automount_t:s0
> tcontext=system_u:object_r:cert_t:s0 tclass=file
>  audit(1143751055.021:9): avc:  denied  { getattr } for  pid=1954
> comm="automount" name="cacert.pem" dev=dm-0 ino=165663
> scontext=system_u:system_r:automount_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=file
>  audit(1143751055.025:10): avc:  denied  { read } for  pid=1954 comm="automount"
> name="cert.pem" dev=dm-0 ino=164178 scontext=system_u:system_r:automount_t:s0
> tcontext=system_u:object_r:cert_t:s0 tclass=lnk_file
>  audit(1143751064.226:11): avc:  denied  { getattr } for  pid=2244 comm="hald"
> name="/" dev=dm-1 ino=2 scontext=system_u:system_r:hald_t:s0
> tcontext=system_u:object_r:default_t:s0 tclass=dir
>  audit(1143751064.230:12): avc:  denied  { search } for  pid=2244 comm="hald"
> name="spool" dev=dm-4 ino=589825 scontext=system_u:system_r:hald_t:s0
> tcontext=system_u:object_r:var_spool_t:s0 tclass=dir
>  audit(1143751066.602:13): avc:  denied  { write } for  pid=2341 comm="mount"
> name="socket" dev=dm-4 ino=917527 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=sock_file
>  audit(1143751066.602:14): avc:  denied  { connectto } for  pid=2341
> comm="mount" name="socket" scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:system_r:nscd_t:s0 tclass=unix_stream_socket
>  audit(1143751066.606:15): avc:  denied  { use } for  pid=2341 comm="mount"
> name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:system_r:nscd_t:s0 tclass=fd
>  audit(1143751066.606:16): avc:  denied  { read } for  pid=2341 comm="mount"
> name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
>  audit(1143751066.606:17): avc:  denied  { getattr } for  pid=2341 comm="mount"
> name="hosts" dev=dm-4 ino=622598 scontext=system_u:system_r:mount_t:s0
> tcontext=system_u:object_r:nscd_var_run_t:s0 tclass=file
>
>  I had been running with selinux disabled for some time, but when I
>  enabled it earlier today the system relabeled itself and then it did
>  so again when I switched to permissive.  Does the boot-time relabel
>  log the changes it makes?  I'd like to see why the third relabel
>  changed things.
>
>  In any case, there are still the cert failures which will keep the
>  machine from booting.
>
>   - J<
>     
You can use
audit2allow -l -M local -i /var/log/messages

to generate a loadable module, and work around this problem.  The 
question I have is why do dbus and automount want
to read the certificate files?

Dan

[Daniel J Walsh]

I have been informed that if you are running ldap-with-ssl you will need 
these permissions.

So added to selinux-policy-2.2.28-3

Available in Rawhide tomorrow
On ftp://people.redhat.com/dwalsh/SELinux/Fedora Now

Will be back ported to FC5 soon.

[Jason L Tibbitts III]

> >>>> "DJW" == Daniel J Walsh <Daniel>
> writes: 
DJW> I have been informed that if you are running ldap-with-ssl you
DJW> will need these permissions.

Cool, thanks.  I'll pull the policy from CVS and try it out tomorrow.

 - J<

[Jason L Tibbitts III]

Just FYI, I installed the rawhide policy and it does fix this problem.
The system boots fine in enforcing mode.  Lots of other denials, most
of which are from pam_console_app but also some that keep boot-time
NFS mounts from working.  I'm assuming it's just not a good idea to be
running the rawhide policy on otherwise stock FC5, so I'll go back to
permissive mode with the old policy until an update arrives.

If, however, you'd like for me to report problems then I'd be happy to
do so.  I gather that I'm the only person running FC5, selinux and
LDAP over SSL so perhaps my setup is odd in other ways that may be
useful to you.

 - J<

[Stephen Smalley]

On Thu, 2006-03-30 at 17:36 -0500, Daniel J Walsh wrote:
>  I have been informed that if you are running ldap-with-ssl you will
> need 
>  these permissions.
>  
>  So added to selinux-policy-2.2.28-3
>  
>  Available in Rawhide tomorrow
>  On ftp://people.redhat.com/dwalsh/SELinux/Fedora Now
>  
>  Will be back ported to FC5 soon. 
Is this under a boolean?  Allowing such wide ranging access to the cert
files is obviously not desirable in general...

-- 
Stephen Smalley
National Security Agency

[Daniel J Walsh]

Stephen Smalley wrote:
>  On Thu, 2006-03-30 at 17:36 -0500, Daniel J Walsh wrote:
>    
> > I have been informed that if you are running ldap-with-ssl you will need 
> > these permissions.
> >
> > So added to selinux-policy-2.2.28-3
> >
> > Available in Rawhide tomorrow
> > On ftp://people.redhat.com/dwalsh/SELinux/Fedora Now
> >
> > Will be back ported to FC5 soon.
> >     
>
>  Is this under a boolean?  Allowing such wide ranging access to the cert
>  files is obviously not desirable in general...
>
>     
Which should I put under a boolean?

grep -r miscfiles_read_cert .
./modules/apps/evolution.if:    miscfiles_read_certs($1_evolution_server_t)
./modules/system/authlogin.if:  miscfiles_read_certs($1_chkpwd_t)
./modules/system/authlogin.if:  miscfiles_read_certs($1)
./modules/system/init.te:miscfiles_read_certs(initrc_t)
./modules/system/miscfiles.if:interface(`miscfiles_read_certs',`
./modules/admin/certwatch.te:miscfiles_read_certs(certwatch_t)
./modules/services/dbus.te:miscfiles_read_certs(system_dbusd_t)
./modules/services/cyrus.te:miscfiles_read_certs(cyrus_t)
./modules/services/fetchmail.te:miscfiles_read_certs(fetchmail_t)
./modules/services/dovecot.te:miscfiles_read_certs(dovecot_t)
./modules/services/nscd.te:miscfiles_read_certs(nscd_t)
./modules/services/ldap.te:miscfiles_read_certs(slapd_t)
./modules/services/automount.te:miscfiles_read_certs(automount_t)
./modules/services/postfix.if:  miscfiles_read_certs(postfix_$1_t)
./modules/services/sasl.te:miscfiles_read_certs(saslauthd_t)
./modules/services/apache.te:miscfiles_read_certs(httpd_t)
./modules/services/squid.te:miscfiles_read_certs(squid_t)

I just added hal and automount?

[Stephen Smalley]

On Thu, 2006-03-30 at 14:05 -0600, Jason L Tibbitts III wrote:
>  I realize that the issue is more complicated, because even with nscd
>  turned on, dbus-daemon still fails to start.  It's looking in
>  /etc/pki:
>  
>  Mar 30 13:50:33 util10 kernel: audit(1143748233.484:304): avc:  denied  { search } for 
> pid=1711 comm="dbus-daemon" name="pki" dev=dm-0 ino=163878
> scontext=system_u:system_r:system_dbusd_t:s0 tcontext=system_u:object_r:cert_t:s0
> tclass=dir
>  
>  I wonder if I have broken something. 
Ah, so your dbus config refers to files in /etc/pki?
Likely not allowed by the current policy.

grep -r pki /etc/dbus-1

-- 
Stephen Smalley
National Security Agency

[Jason L Tibbitts III]

> >>>> "SS" == Stephen Smalley
> <sds(a)tycho.nsa.gov&gt; writes: 
SS> Ah, so your dbus config refers to files in /etc/pki? Likely not
SS> allowed by the current policy.

I haven't touched the dbus configuration; it is 100% stock.

SS> grep -r pki /etc/dbus-1

It finds nothing.

 - J<