SELinux blocking Samba share mounting?
Hi,
I'm starting to migrate a few Fedora boxes over to the latest version of CentOS 5
running the latest version of samba:
[~]# smbstatus
Samba version 3.0.28-1.el5_2.1
However, I am having a hard time getting SELinux to permit the mounting of shares on the
first CentOS box. Disabling SELinux permits the shares to mount without problem:
[~]# setenforce 1
[~]# mount -t cifs //192.168.10.3/PHFiles /mnt/samba -o username=****,password=****,rw
retrying with upper case share name
mount error 6 = No such device or address
[~]# setenforce 0
[~]# mount -t cifs //192.168.10.3/PHFiles /mnt/samba -o username=****,password=****,rw
[~]# ls -la /mnt/samba/
total 8
d---rws---+ 6 samba samba 0 Feb 10 11:17 .
drwxr-xr-x 3 root root 4096 Feb 12 11:13 ..
d---rws---+ 2 technology technology 0 Feb 10 11:14 Computing
d---rws---+ 2 development development 0 Feb 10 11:17 Development
d---rws---+ 2 root public 0 Feb 10 11:16 Marketing & Design
d---rws---+ 2 root public 0 Feb 10 11:14 Public Computing
[~]# umount /mnt/samba/
[~]# setenforce 1
Installed policy version is:
selinux-policy.noarch 2.4.6-137.1.el5
selinux-policy-targeted.noarch 2.4.6-137.1.el5
The two shared directories are:
[~]# ls -laZ /home/server1/PHFiles/
d---rws---+ samba samba system_u:object_r:samba_share_t .
drwxr-xr-x root root root:object_r:user_home_dir_t ..
d---rws---+ technology technology root:object_r:samba_share_t Computing
d---rws---+ development development root:object_r:samba_share_t Development
d---rws---+ root public root:object_r:samba_share_t Marketing &
Design
d---rws---+ root public root:object_r:samba_share_t Public Computing
and
[~]# ls -laZ /var/www/html
d---rwsr-x+ development development system_u:object_r:public_content_rw_t .
drwxr-xr-x root root system_u:object_r:httpd_sys_content_t ..
----rwxr-x+ development development root:object_r:public_content_rw_t .DS_Store
d---rwsr-x+ development development root:object_r:public_content_rw_t private
d---rwsr-x+ development development root:object_r:public_content_rw_t public
(I am aware that my permissions seem a bit untraditional. I am running an experiment with
extended ACL configuration on samba shares. However, I do not believe this to have any
bearing on my present problems, as I have numerous other production servers running with
these permissions under SELinux, and, again, turning SELinux off resolves my problems
instantly.)
The following has been executed with no apparent effect:
setsebool -P allow_smbd_anon_write=1
The following have been executed with no apparent effect (so these have been turned back
off):
setsebool -P smbd_disable_trans=1
setsebool -P nmbd_disable_trans=1
I've added the new contexts to file_contexts, and executed 'restorecon -R' to
the two shared directories:
/home/server1/PHFiles(/.*)? -- system_u:object_r:samba_share_t
/var/www/html(/.*)? -- system_u:object_r:public_content_rw_t
setroubleshoot-server is installed, but no AVC denials are reported to /var/log/messages.
Instead, when SELinux is enforcing, I get the error:
smbd[11852]: '/home/server1/PHFiles' does not exist or permission denied when
connecting to [PHFiles] Error was Permission denied
And, finally, I've rebooted. All to no avail. Any assistance would be much
appreciated!