NetworkManager_selinux(8)SELinux Policy NetworkManageNetworkManager_selinux(8)NAMENetworkManager_selinux - Security Enhanced Linux Policy for the Net‐
workManager processes
DESCRIPTION
Security-Enhanced Linux secures the NetworkManager processes via flexi‐
ble mandatory access control.
The NetworkManager processes execute with the NetworkManager_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 NetworkManager_t
ENTRYPOINTS
The NetworkManager_t SELinux type can be entered via the NetworkMan‐
ager_exec_t file type.
The default entrypoint paths for the NetworkManager_t domain are the
following:
/usr/s?bin/NetworkManager, /usr/s?bin/wpa_supplicant, /usr/libexec/nm-
dispatcher.action, /usr/bin/teamd, /usr/sbin/wicd, /sbin/wpa_suppli‐
cant, /usr/sbin/wpa_supplicant, /usr/sbin/nm-system-settings,
/usr/sbin/NetworkManagerDispatcher
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
NetworkManager policy is very flexible allowing users to setup their
NetworkManager processes in as secure a method as possible.
The following process types are defined for NetworkManager:
NetworkManager_t
Note: semanage permissive -a NetworkManager_t can be used to make the
process type NetworkManager_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. Net‐
workManager policy is extremely flexible and has several booleans that
allow you to manipulate the policy and run NetworkManager with the
tightest access possible.
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 authlo‐
gin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
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
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
If you want to support ecryptfs home directories, you must turn on the
use_ecryptfs_home_dirs boolean. Disabled by default.
setsebool -P use_ecryptfs_home_dirs 1
If you want to support NFS home directories, you must turn on the
use_nfs_home_dirs boolean. Disabled by default.
setsebool -P use_nfs_home_dirs 1
If you want to support SAMBA home directories, you must turn on the
use_samba_home_dirs boolean. Disabled by default.
setsebool -P use_samba_home_dirs 1
If you want to allow xguest users to configure Network Manager and con‐
nect to apache ports, you must turn on the xguest_connect_network bool‐
ean. Enabled by default.
setsebool -P xguest_connect_network 1
NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from
ldap rather then using a sssd server for the NetworkManager_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
NetworkManager_t, you must turn on the kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
MANAGED FILES
The SELinux process type NetworkManager_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.
NetworkManager_etc_rw_t
/etc/NetworkManager/system-connections(/.*)?
/etc/NetworkManager/NetworkManager.conf
NetworkManager_tmp_t
NetworkManager_var_lib_t
/var/lib/wicd(/.*)?
/var/lib/NetworkManager(/.*)?
/etc/dhcp/wired-settings.conf
/etc/wicd/wired-settings.conf
/etc/dhcp/manager-settings.conf
/etc/wicd/manager-settings.conf
/etc/dhcp/wireless-settings.conf
/etc/wicd/wireless-settings.conf
NetworkManager_var_run_t
/var/run/teamd(/.*)?
/var/run/nm-xl2tpd.conf.*
/var/run/nm-dhclient.*
/var/run/NetworkManager(/.*)?
/var/run/wpa_supplicant(/.*)?
/var/run/wicd.pid
/var/run/NetworkManager.pid
/var/run/nm-dns-dnsmasq.conf
/var/run/wpa_supplicant-global
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
hostname_etc_t
/etc/hostname
/etc/machine-info
named_cache_t
/var/named/data(/.*)?
/var/lib/unbound(/.*)?
/var/named/slaves(/.*)?
/var/named/dynamic(/.*)?
/var/named/chroot/var/tmp(/.*)?
/var/named/chroot/var/named/data(/.*)?
/var/named/chroot/var/named/slaves(/.*)?
/var/named/chroot/var/named/dynamic(/.*)?
net_conf_t
/etc/hosts[^/]*
/etc/yp.conf.*
/etc/denyhosts.*
/etc/hosts.deny.*
/etc/resolv.conf.*
/etc/sysconfig/networking(/.*)?
/etc/sysconfig/network-scripts(/.*)?
/etc/sysconfig/network-scripts/.*resolv.conf
/etc/ethers
/etc/ntp.conf
pppd_var_run_t
/var/run/(i)?ppp.*pid[^/]*
/var/run/ppp(/.*)?
/var/run/pppd[0-9]*.tdb
root_t
/
/initrd
security_t
/selinux
sysfs_t
/sys(/.*)?
systemd_passwd_var_run_t
/var/run/systemd/ask-password(/.*)?
/var/run/systemd/ask-password-block(/.*)?
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 NetworkManager policy is very flexible allowing users to setup
their NetworkManager processes in as secure a method as possible.
EQUIVALENCE DIRECTORIES
NetworkManager policy stores data with multiple different file context
types under the /var/run/wpa_supplicant 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/run/wpa_supplicant /srv/wpa_supplicant
restorecon -R -v /srv/wpa_supplicant
NetworkManager policy stores data with multiple different file context
types under the /var/run/NetworkManager 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/run/NetworkManager /srv/NetworkManager
restorecon -R -v /srv/NetworkManager
STANDARD FILE CONTEXT
SELinux defines the file context types for the NetworkManager, 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 NetworkManager_etc_rw_t '/srv/NetworkMan‐
ager/content(/.*)?'
restorecon -R -v /srv/myNetworkManager_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for NetworkManager:
NetworkManager_etc_rw_t
- Set files with the NetworkManager_etc_rw_t type, if you want to treat
the files as NetworkManager etc read/write content.
Paths:
/etc/NetworkManager/system-connections(/.*)?, /etc/NetworkMan‐
ager/NetworkManager.conf
NetworkManager_etc_t
- Set files with the NetworkManager_etc_t type, if you want to store
NetworkManager files in the /etc directories.
NetworkManager_exec_t
- Set files with the NetworkManager_exec_t type, if you want to transi‐
tion an executable to the NetworkManager_t domain.
Paths:
/usr/s?bin/NetworkManager, /usr/s?bin/wpa_supplicant,
/usr/libexec/nm-dispatcher.action, /usr/bin/teamd, /usr/sbin/wicd,
/sbin/wpa_supplicant, /usr/sbin/wpa_supplicant, /usr/sbin/nm-sys‐
tem-settings, /usr/sbin/NetworkManagerDispatcher
NetworkManager_initrc_exec_t
- Set files with the NetworkManager_initrc_exec_t type, if you want to
transition an executable to the NetworkManager_initrc_t domain.
Paths:
/etc/NetworkManager/dispatcher.d(/.*)?, /etc/rc.d/init.d/wicd
NetworkManager_log_t
- Set files with the NetworkManager_log_t type, if you want to treat
the data as NetworkManager log data, usually stored under the /var/log
directory.
Paths:
/var/log/wicd.*, /var/log/wpa_supplicant.*
NetworkManager_tmp_t
- Set files with the NetworkManager_tmp_t type, if you want to store
NetworkManager temporary files in the /tmp directories.
NetworkManager_unit_file_t
- Set files with the NetworkManager_unit_file_t type, if you want to
treat the files as NetworkManager unit content.
NetworkManager_var_lib_t
- Set files with the NetworkManager_var_lib_t type, if you want to
store the NetworkManager files under the /var/lib directory.
Paths:
/var/lib/wicd(/.*)?, /var/lib/NetworkManager(/.*)?,
/etc/dhcp/wired-settings.conf, /etc/wicd/wired-settings.conf,
/etc/dhcp/manager-settings.conf, /etc/wicd/manager-settings.conf,
/etc/dhcp/wireless-settings.conf, /etc/wicd/wireless-settings.conf
NetworkManager_var_run_t
- Set files with the NetworkManager_var_run_t type, if you want to
store the NetworkManager files under the /run or /var/run directory.
Paths:
/var/run/teamd(/.*)?, /var/run/nm-xl2tpd.conf.*, /var/run/nm-
dhclient.*, /var/run/NetworkManager(/.*)?, /var/run/wpa_suppli‐
cant(/.*)?, /var/run/wicd.pid, /var/run/NetworkManager.pid,
/var/run/nm-dns-dnsmasq.conf, /var/run/wpa_supplicant-global
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), NetworkManager(8), semanage(8), restorecon(8), chcon(1),
sepolicy(8) , setsebool(8)NetworkManager 14-05-08 NetworkManager_selinux(8)
