Summary:

SELinux is preventing Samba (/usr/sbin/smbd) "write" access to backup-desktop.

Detailed Description:

SELinux denied samba access to backup-desktop. If you want to share this
directory with samba it has to have a file context label of samba_share_t. If
you did not intend to use backup-desktop as a samba repository it could indicate
either a bug or it could signal a intrusion attempt. Please refer to 'man
samba_selinux' for more information on setting up Samba and SELinux.

Allowing Access:

You can alter the file context by executing chcon -R -t samba_share_t
'backup-desktop' You must also change the default file context files on the
system in order to preserve them even on a full relabel. "semanage fcontext -a
-t samba_share_t 'backup-desktop'"

Fix Command:

chcon -R -t samba_share_t 'backup-desktop'

Additional Information:

Source Context                system_u:system_r:smbd_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:usr_t:s0
Target Objects                backup-desktop [ dir ]
Source                        smbd
Source Path                   /usr/sbin/smbd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           samba-3.5.3-61.fc13
Target RPM Packages           
Policy RPM                    selinux-policy-3.7.19-28.fc13
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   samba_share
Host Name                     (removed)
Platform                      Linux (removed) 2.6.33.5-124.fc13.x86_64 #1 SMP
                              Fri Jun 11 09:38:12 UTC 2010 x86_64 x86_64
Alert Count                   20
First Seen                    Tue 29 Jun 2010 13:45:24 CEST
Last Seen                     Tue 29 Jun 2010 13:45:36 CEST
Local ID                      e861c7f4-0a56-4d86-b402-15d6d7340694
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1277811936.486:31068): avc:  denied  { write } for  pid=3097 comm="smbd" name="backup-desktop" dev=sda5 ino=394103 scontext=system_u:system_r:smbd_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:usr_t:s0 tclass=dir

node=(removed) type=SYSCALL msg=audit(1277811936.486:31068): arch=c000003e syscall=83 success=no exit=-13 a0=7fb56e513e20 a1=1ed a2=1ed a3=19 items=0 ppid=3073 pid=3097 auid=4294967295 uid=0 gid=0 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=4294967295 comm="smbd" exe="/usr/sbin/smbd" subj=system_u:system_r:smbd_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  samba_share,smbd,smbd_t,usr_t,dir,write
audit2allow suggests:

#============= smbd_t ==============
#!!!! This avc can be allowed using the boolean 'samba_export_all_rw'

allow smbd_t usr_t:dir write;