Security-Enhanced Linux secures the soundd processes via flexible mandatory access control.
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 soundd policy is very flexible allowing users to setup their soundd processes in as secure a method as possible.
The following file types are defined for soundd:
soundd_etc_t
- Set files with the soundd_etc_t type, if you want to store soundd files in the /etc directories.
soundd_exec_t
- Set files with the soundd_exec_t type, if you want to transition an executable to the soundd_t domain.
soundd_initrc_exec_t
- Set files with the soundd_initrc_exec_t type, if you want to transition an executable to the soundd_initrc_t domain.
soundd_state_t
- Set files with the soundd_state_t type, if you want to treat the files as soundd state data.
soundd_tmp_t
- Set files with the soundd_tmp_t type, if you want to store soundd temporary files in the /tmp directories.
soundd_tmpfs_t
- Set files with the soundd_tmpfs_t type, if you want to store soundd files on a tmpfs file system.
soundd_var_run_t
- Set files with the soundd_var_run_t type, if you want to store the soundd files under the /run 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 types associated with a port by using the following command:
semanage port -l
Policy governs the access confined processes have to these ports. SELinux soundd policy is very flexible allowing users to setup their soundd processes in as secure a method as possible.
The following port types are defined for soundd:
Default Defined Ports: tcp 8000,9433,16001
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux soundd policy is very flexible allowing users to setup their soundd processes in as secure a method as possible.
The following process types are defined for soundd:
soundd_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 soundd_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.
soundd_state_t
/var/state/yiff(/.*)?
soundd_tmp_t
soundd_tmpfs_t
soundd_var_run_t
/var/run/nasd(/.*)?
/var/run/yiff-[0-9]+.pid
semanage permissive can also be used to manipulate whether or not a process type is permissive.
semanage module can also be used to enable/disable/install/remove policy modules.
semanage port can also be used to manipulate the por