Security-Enhanced Linux secures the shorewall processes via flexible mandatory access control.
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd serve for the shorewall_t, you must turn on the authlogin_nsswitch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the shorewall_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
You can see the context of a file using the -Z option to lsP Policy governs the access confined processes have to these files. SELinux shorewall policy is very flexible allowing users to setup their shorewall processes in as secure a method as possible.
The following file types are defined for shorewall:
shorewall_etc_t
- Set files with the shorewall_etc_t type, if you want to store shorewall files in the /etc directories.
shorewall_exec_t
- Set files with the shorewall_exec_t type, if you want to transition an executable to the shorewall_t domain.
shorewall_initrc_exec_t
- Set files with the shorewall_initrc_exec_t type, if you want to transition an executable to the shorewall_initrc_t domain.
shorewall_lock_t
- Set files with the shorewall_lock_t type, if you want to treat the files as shorewall lock data, stored under the /var/lock directory
shorewall_log_t
- Set files with the shorewall_log_t type, if you want to treat the data as shorewall log data, usually stored under the /var/log directory.
shorewall_tmp_t
- Set files with the shorewall_tmp_t type, if you want to store shorewall temporary files in the /tmp directories.
shorewall_var_lib_t
- Set files with the shorewall_var_lib_t type, if you want to store the shorewall files under the /var/lib directory.
Note: File context can be temporarily modified with the chcon command. If you want to permanently change the file context you need to use the semanage fcontext command. This will modify the SELinux labeling database. You will need to use restorecon to apply the labels.
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux shorewall policy is very flexible allowing users to setup their shorewall processes in as secure a method as possible.
The following process types are defined for shorewall:
shorewall_t
Note: semanage permissive -a PROCESS_TYPE can be used to make a process type permissive. Permissive process types are not denied access by SELinux. AVC messages will still be generated.
The SELinux user type shorewall_t can manage files labeled with the following file types. The paths listed are the default paths for these file types. Note the processes UID still need to have DAC permissions.
initrc_var_run_t
/var/run/utmp
/var/run/random-seed
/var/run/runlevel.dir
/var/run/setmixer_flag
shorewall_lock_t
/var/lock/subsys/shorewall
shorewall_log_t
/var/log/shorewall.*
shorewall_tmp_t