Security-Enhanced Linux secures the swift processes via flexible mandatory access control.
The swift processes execute with the swift_t SELinux type. You can check if you have these processes running by executing the ps command with the -Z qualifier.
For example:
ps -eZ | grep swift_t
The swift_t SELinux type can be entered via the swift_exec_t file type.
The default entrypoint paths for the swift_t domain are the following:
/usr/bin/swift-object-info, /usr/bin/swift-proxy-server, /usr/bin/swift-object-server, /usr/bin/swift-account-reaper, /usr/bin/swift-account-server, /usr/bin/swift-container-sync, /usr/bin/swift-object-auditor, /usr/bin/swift-object-expirer, /usr/bin/swift-object-updater, /usr/bin/swift-account-auditor, /usr/bin/swift-container-server, /usr/bin/swift-container-auditor, /usr/bin/swift-container-updater, /usr/bin/swift-object-replicator, /usr/bin/swift-account-replicator, /usr/bin/swift-container-reconciler, /usr/bin/swift-container-replicator
You can see the context of a process using the -Z option to psP Policy governs the access confined processes have to files. SELinux swift policy is very flexible allowing users to setup their swift processes in as secure a method as possible.
The following process types are defined for swift:
swift_t
Note: semanage permissive -a swift_t can be used to make the process type swift_t permissive. SELinux does not deny access to permissive process types, but the AVC (SELinux denials) messages are still generated.
If you want to determine whether swift can connect to all TCP ports, you must turn on the swift_can_network boolean. Disabled by default.
setsebool -P swift_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. Enabled by default.
setsebool -P nscd_use_shm 1
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 swift policy is very flexible allowing users to setup their swift processes in as secure a method as possible.
The following port types are defined for swift:
Default Defined Ports: tcp 6200-6203
The SELinux process type swift_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.
cluster_conf_t
/etc/cluster(/.*)?
cluster_var_lib_t
/var/lib/pcsd(/.*)?
/var/lib/cluster(/.*)?
/var/lib/openais(/.*)?
/var/lib/pengine(/.*)?
/var/lib/corosync(/.*)?
/usr/lib/heartbeat(/.*)?
/var/lib/heartbeat(/.*)?
/var/lib/pacemaker(/.*)?
cluster_var_run_t
/var/run/crm(/.*)?
/var/run/cman_.*
/var/run/rsctmp(/.*)?
/var/run/aisexec.*
/var/run/heartbeat(/.*)?
/var/run/corosync-qnetd(/.*)?
/var/run/corosync-qdevice(/.*)?
/var/run/corosync.pid
/var/run/cpglockd.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk
root_t
/sysroot/ostree/deploy/.*-atomic/deploy(/.*)?
/
/initrd
swift_data_t
/srv/node(/.*)?
/var/lib/swift(/.*)?
/srv/loopback-device(/.*)?
swift_lock_t
/var/lock/swift.*
swift_tmp_t
swift_tmpfs_t
swift_var_cache_t
/var/cache/swift(/.*)?
swift_var_run_t
/var/run/swift(/.*)?
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 swift policy is very flexible allowing users to setup their swift processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the swift, 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 swift_data_t '/srv/myswift_content(/.*)?'
restorecon -R -v /srv/myswift_content
Note: SELinux often uses regular expressions to specify labels that match multiple files.
The following file types are defined for swift:
swift_data_t
- Set files with the swift_data_t type, if you want to treat the files as swift content.
swift_exec_t
- Set files with the swift_exec_t type, if you want to transition an executable to the swift_t domain.
swift_lock_t
- Set files with the swift_lock_t type, if you want to treat the files as swift lock data, stored under the /var/lock directory
swift_tmp_t
- Set files with the swift_tmp_t type, if you want to store swift temporary files in the /tmp directories.
swift_tmpfs_t
- Set files with the swift_tmpfs_t type, if you want to store swift files on a tmpfs file system.
swift_unit_file_t
- Set files with the swift_unit_file_t type, if you want to treat the files as swift unit content.
swift_var_cache_t
- Set files with the swift_var_cache_t type, if you want to store the files under the /var/cache directory.
swift_var_run_t
- Set files with the swift_var_run_t type, if you want to store the swift 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 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.