modemmanager_selinux(8) SELinux Policy modemmanager modemmanager_selinux(8)NAMEmodemmanager_selinux - Security Enhanced Linux Policy for the modemman‐
ager processes
DESCRIPTION
Security-Enhanced Linux secures the modemmanager processes via flexible
mandatory access control.
The modemmanager processes execute with the modemmanager_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 modemmanager_t
ENTRYPOINTS
The modemmanager_t SELinux type can be entered via the modemman‐
ager_exec_t file type.
The default entrypoint paths for the modemmanager_t domain are the fol‐
lowing:
/usr/sbin/ModemManager, /usr/sbin/modem-manager
PROCESS TYPES
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 ps
Policy governs the access confined processes have to files. SELinux
modemmanager policy is very flexible allowing users to setup their
modemmanager processes in as secure a method as possible.
The following process types are defined for modemmanager:
modemmanager_t
Note: semanage permissive -a modemmanager_t can be used to make the
process type modemmanager_t permissive. SELinux does not deny access to
permissive process types, but the AVC (SELinux denials) messages are
still generated.
BOOLEANS
SELinux policy is customizable based on least access required. modem‐
manager policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run modemmanager with the tight‐
est access possible.
If you want to allow all daemons to write corefiles to /, you must turn
on the daemons_dump_core boolean. Disabled by default.
setsebool -P daemons_dump_core 1
If you want to enable cluster mode for daemons, you must turn on the
daemons_enable_cluster_mode boolean. Enabled by default.
setsebool -P daemons_enable_cluster_mode 1
If you want to allow all daemons to use tcp wrappers, you must turn on
the daemons_use_tcp_wrapper boolean. Disabled by default.
setsebool -P daemons_use_tcp_wrapper 1
If you want to allow all daemons the ability to read/write terminals,
you must turn on the daemons_use_tty boolean. Disabled by default.
setsebool -P daemons_use_tty 1
If you want to deny any process from ptracing or debugging any other
processes, you must turn on the deny_ptrace boolean. Enabled by
default.
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors,
you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you
must turn on the domain_kernel_load_modules boolean. Disabled by
default.
setsebool -P domain_kernel_load_modules 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 enable reading of urandom for all domains, you must turn
on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 1
MANAGED FILES
The SELinux process type modemmanager_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 per‐
missions.
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/cpglockd.pid
/var/run/corosync.pid
/var/run/rgmanager.pid
/var/run/cluster/rgmanager.sk
root_t
/
/initrd
FILE CONTEXTS
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 ls
Policy governs the access confined processes have to these files.
SELinux modemmanager policy is very flexible allowing users to setup
their modemmanager processes in as secure a method as possible.
STANDARD FILE CONTEXT
SELinux defines the file context types for the modemmanager, 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 modemmanager_exec_t '/srv/modemmanager/con‐
tent(/.*)?'
restorecon -R -v /srv/mymodemmanager_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for modemmanager:
modemmanager_exec_t
- Set files with the modemmanager_exec_t type, if you want to transi‐
tion an executable to the modemmanager_t domain.
Paths:
/usr/sbin/ModemManager, /usr/sbin/modem-manager
modemmanager_unit_file_t
- Set files with the modemmanager_unit_file_t type, if you want to
treat the files as modemmanager unit content.
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 data‐
base. You will need to use restorecon to apply the labels.
COMMANDS
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 pol‐
icy modules.
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was auto-generated using sepolicy manpage .
SEE ALSOselinux(8), modemmanager(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8) , setsebool(8)modemmanager 13-11-20 modemmanager_selinux(8)
