On Tue, 27 Apr 2010 08:45:25 -0400
Daniel J Walsh <dwalsh@xxxxxxxxxx> wrote:
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> On 04/26/2010 12:41 PM, Steve Blackwell wrote:
> > On Mon, 26 Apr 2010 11:11:00 -0400
> > Daniel J Walsh <dwalsh@xxxxxxxxxx> wrote:
> >
> >
> >>> I do still have one (so far) problem though. When I tried to point
> >>> my browser at my local BackupPC server page a get an "Unable to
> >>> Connect" message and an AVC:
> >>>
> >>> Raw Audit Messages :
> >>> node=steve.blackwell type=AVC msg=audit(1272289200.98:138): avc:
> >>> denied { write } for pid=31707 comm="perl5.10.0"
> >>> name="BackupPC.sock" dev=dm-0 ino=36667496
> >>> scontext=system_u:system_r:httpd_t:s0
> >>> tcontext=system_u:object_r:var_log_t:s0 tclass=sock_file
> >>>
> >>> node=steve.blackwell type=SYSCALL msg=audit(1272289200.98:138):
> >>> arch=40000003 syscall=102 success=no exit=-13 a0=3 a1=bfbd44e0
> >>> a2=cfe4ac a3=9317008 items=0 ppid=2037 pid=31707 auid=4294967295
> >>> uid=48 gid=48 euid=495 suid=495 fsuid=495 egid=48 sgid=48 fsgid=48
> >>> tty=(none) ses=4294967295 comm="perl5.10.0"
> >>> exe="/usr/bin/perl5.10.0" subj=system_u:system_r:httpd_t:s0
> >>> key=(null)
> >>>
> >>> Now I know I could change the context of that socket file but I'm
> >>> guessing that it gets created every time and so that is not a
> >>> permanent solution. Is there a boolean I need to set; nothing
> >>> looked obvious or perhaps a BackupPC policy I need to install?
> >>>
> >>> Thanks,
> >>> Steve
> >>> --
> >>> selinux mailing list
> >>> selinux@xxxxxxxxxxxxxxxxxxxxxxx
> >>> https://admin.fedoraproject.org/mailman/listinfo/selinux
> >>>
> >>>
> >> What directory is the socket in?
> >
> > /var/log/BackupPC
> >
> > Steve
>
> The BackupPC package comes with labeling in F12/F13 of
> httpd_sys_content_t.
>
> # matchpathcon /var/log/BackupPC/
> /var/log/BackupPC system_u:object_r:httpd_sys_content_t:s0
>
> Execute the following, should fix the problem
>
> # semanage fcontext -a -t httpd_sys_content_t
> '/var/log/BackupPC(/.*)?'
> # restorecon -R -v /var/log/BackupPC
No luck.
This did relabel the files in /var/log/BackupPC
[root@steve ~]# ls -lZ /var/log/BackupPC
-r--r--r--. backuppc backuppc system_u:object_r:httpd_sys_content_t:s0
BackupPC.pid
srwxr-x---. backuppc backuppc system_u:object_r:httpd_sys_content_t:s0
BackupPC.sock
...
but SELinux still won't let me access the server. I get a slightly
different but essentially the same AVC as before:
Raw Audit Messages :
node=steve.blackwell type=AVC
msg=audit(1272379639.571:319): avc: denied { write } for pid=31612
comm="perl5.10.0" name="BackupPC.sock" dev=dm-0 ino=36667496
scontext=system_u:system_r:httpd_t:s0
tcontext=system_u:object_r:httpd_sys_content_t:s0 tclass=sock_file
node=steve.blackwell type=SYSCALL msg=audit(1272379639.571:319):
arch=40000003 syscall=102 success=no exit=-13 a0=3 a1=bf877390
a2=8a34ac a3=8fc7008 items=0 ppid=2031 pid=31612 auid=4294967295 uid=48
gid=48 euid=495 suid=495 fsuid=495 egid=48 sgid=48 fsgid=48 tty=(none)
ses=4294967295 comm="perl5.10.0" exe="/usr/bin/perl5.10.0"
subj=system_u:system_r:httpd_t:s0 key=(null)
So it looks to my untrained eye that we have a process with context
system_u:system_r:httpd_t:s0
trying to write to a file that has a context
system_u:object_r:httpd_sys_content_t:s0
and there is no rule to say that this is OK. Is that about right?
Thanks,
Steve
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