conman_selinux man page
conman_selinux — Security Enhanced Linux Policy for the conman processes
Security-Enhanced Linux secures the conman processes via flexible mandatory access control.
The conman processes execute with the conman_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.
ps -eZ | grep conman_t
The conman_t SELinux type can be entered via the conman_exec_t file type.
The default entrypoint paths for the conman_t domain are the following:
SELinux defines process types (domains) for each process running on the system
You can see the context of a process using the -Z option to psbP
Policy governs the access confined processes have to files. SELinux conman policy is very flexible allowing users to setup their conman processes in as secure a method as possible.
The following process types are defined for conman:
Note: semanage permissive -a conman_t can be used to make the process type conman_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.
SELinux policy is customizable based on least access required. conman policy is extremely flexible and has several booleans that allow you to manipulate the policy and run conman with the tightest access possible.
If you want to determine whether conman can connect to all TCP ports, you must turn on the conman_can_network boolean. Disabled by default.
setsebool -P conman_can_network 1
If you want to allow users to resolve user passwd entries directly from ldap rather then using a sssd server, you must turn on the authlogin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to allow confined applications to run with kerberos, you must turn on the kerberos_enabled boolean. Enabled by default.
setsebool -P kerberos_enabled 1
If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
If you want to allow confined applications to use nscd shared memory, you must turn on the nscd_use_shm boolean. Disabled by default.
setsebool -P nscd_use_shm 1
SELinux defines port types to represent TCP and UDP ports.
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 conman policy is very flexible allowing users to setup their conman processes in as secure a method as possible.
The following port types are defined for conman:
Default Defined Ports: tcp 7890 udp 7890
The SELinux process type conman_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.
SELinux requires files to have an extended attribute to define the file type.
You can see the context of a file using the -Z option to lsbP
Policy governs the access confined processes have to these files. SELinux conman policy is very flexible allowing users to setup their conman processes in as secure a method as possible.
conman policy stores data with multiple different file context types under the /var/log/conman directory. If you would like to store the data in a different directory you can use the semanage command to create an equivalence mapping. If you wanted to store this data under the /srv dirctory you would execute the following command:
semanage fcontext -a -e /var/log/conman /srv/conman
restorecon -R -v /srv/conman
STANDARD FILE CONTEXT
SELinux defines the file context types for the conman, if you wanted to store files with these types in a diffent paths, you need to execute the semanage command to sepecify alternate labeling and then use restorecon to put the labels on disk.
semanage fcontext -a -t conman_unit_file_t '/srv/myconman_content(/.*)?'
restorecon -R -v /srv/myconman_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.
The following file types are defined for conman:
- Set files with the conman_exec_t type, if you want to transition an executable to the conman_t domain.
- Set files with the conman_log_t type, if you want to treat the data as conman log data, usually stored under the /var/log directory.
- Set files with the conman_tmp_t type, if you want to store conman temporary files in the /tmp directories.
- Set files with the conman_unconfined_script_exec_t type, if you want to transition an executable to the conman_unconfined_script_t domain.
- Set files with the conman_unit_file_t type, if you want to treat the files as conman unit content.
- Set files with the conman_var_run_t type, if you want to store the conman files under the /run or /var/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.
semanage fcontext can also be used to manipulate default file context mappings.
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 port definitions
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux policy settings.
This manual page was auto-generated using sepolicy manpage .
selinux(8), conman(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8), conman_unconfined_script_selinux(8), conman_unconfined_script_selinux(8)