Summary:

SELinux is preventing rm (dhcpc_t) "unlink" to ./resolv.conf.predhclient.eth0
(etc_t).

Detailed Description:

SELinux is preventing rm (dhcpc_t) "unlink" to ./resolv.conf.predhclient.eth0
(etc_t). The SELinux type etc_t, is a generic type for all files in the
directory and very few processes (SELinux Domains) are allowed to write to this
SELinux type. This type of denial usual indicates a mislabeled file. By default
a file created in a directory has the gets the context of the parent directory,
but SELinux policy has rules about the creation of directories, that say if a
process running in one SELinux Domain (D1) creates a file in a directory with a
particular SELinux File Context (F1) the file gets a different File Context
(F2). The policy usually allows the SELinux Domain (D1) the ability to write,
unlink, and append on (F2). But if for some reason a file
(./resolv.conf.predhclient.eth0) was created with the wrong context, this domain
will be denied. The usual solution to this problem is to reset the file context
on the target file, restorecon -v './resolv.conf.predhclient.eth0'. If the file
context does not change from etc_t, then this is probably a bug in policy.
Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi)
against the selinux-policy package. If it does change, you can try your
application again to see if it works. The file context could have been
mislabeled by editing the file or moving the file from a different directory, if
the file keeps getting mislabeled, check the init scripts to see if they are
doing something to mislabel the file.

Allowing Access:

You can attempt to fix file context by executing restorecon -v
'./resolv.conf.predhclient.eth0'

Fix Command:

restorecon './resolv.conf.predhclient.eth0'

Additional Information:

Source Context                unconfined_u:system_r:dhcpc_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:etc_t:s0
Target Objects                ./resolv.conf.predhclient.eth0 [ file ]
Source                        rm
Source Path                   /bin/rm
Port                          <Unknown>
Host                          localhost
Source RPM Packages           coreutils-6.10-27.fc9
Target RPM Packages           
Policy RPM                    selinux-policy-3.3.1-79.fc9
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   mislabeled_file
Host Name                     localhost
Platform                      Linux localhost 2.6.25.11-97.fc9.x86_64 #1 SMP Mon
                              Jul 21 01:09:10 EDT 2008 x86_64 x86_64
Alert Count                   5
First Seen                    Sat Jul 26 11:50:40 2008
Last Seen                     Tue Jul 29 18:38:56 2008
Local ID                      f5925e6c-e229-4033-895a-77ff79d9e098
Line Numbers                  

Raw Audit Messages            

host=localhost type=AVC msg=audit(1217381936.206:1274): avc:  denied  { unlink } for  pid=21744 comm="rm" name="resolv.conf.predhclient.eth0" dev=dm-1 ino=18410 scontext=unconfined_u:system_r:dhcpc_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:etc_t:s0 tclass=file

host=localhost type=SYSCALL msg=audit(1217381936.206:1274): arch=c000003e syscall=263 success=no exit=-13 a0=ffffffffffffff9c a1=7fff18339897 a2=0 a3=3219f67a70 items=0 ppid=21707 pid=21744 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=pts1 ses=2 comm="rm" exe="/bin/rm" subj=unconfined_u:system_r:dhcpc_t:s0-s0:c0.c1023 key=(null)