cupsd_selinux(8) cupsd SELinux Policy documentation cupsd_selinux(8)NAMEcupsd_selinux - Security Enhanced Linux Policy for the cupsd processes
DESCRIPTION
Security-Enhanced Linux secures the cupsd processes via flexible manda‐
tory access control.
NSSWITCH DOMAIN
If you want to allow users to login using a sssd serve for the
cups_pdf_t, cupsd_config_t, cupsd_lpd_t, cupsd_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
cups_pdf_t, cupsd_config_t, cupsd_lpd_t, cupsd_t, you must turn on the
allow_kerberos boolean.
setsebool -P allow_kerberos 1
If you want to allow system to run with NI for the cups_pdf_t,
cupsd_config_t, cupsd_lpd_t, cupsd_t, you must turn on the allow_ypbind
boolean.
setsebool -P allow_ypbind 1
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 cupsd policy is very flexible allowing users to setup their
cupsd processes in as secure a method as possible.
The following file types are defined for cupsd:
cupsd_config_exec_t
- Set files with the cupsd_config_exec_t type, if you want to transi‐
tion an executable to the cupsd_config_t domain.
Paths:
/usr/sbin/printconf-backend, /usr/sbin/hal_lpadmin,
/usr/lib/udev/udev-configure-printer, /usr/libexec/cups-pk-helper-
mechanism, /usr/libexec/hal_lpadmin, /lib/udev/udev-configure-
printer, /usr/bin/cups-config-daemon
cupsd_config_var_run_t
- Set files with the cupsd_config_var_run_t type, if you want to store
the cupsd config files under the /run directory.
cupsd_etc_t
- Set files with the cupsd_etc_t type, if you want to store cupsd files
in the /etc directories.
Paths:
/usr/share/cups(/.*)?, /etc/cups(/.*)?
cupsd_exec_t
- Set files with the cupsd_exec_t type, if you want to transition an
executable to the cupsd_t domain.
cupsd_initrc_exec_t
- Set files with the cupsd_initrc_exec_t type, if you want to transi‐
tion an executable to the cupsd_initrc_t domain.
cupsd_interface_t
- Set files with the cupsd_interface_t type, if you want to treat the
files as cupsd interface data.
cupsd_lock_t
- Set files with the cupsd_lock_t type, if you want to treat the files
as cupsd lock data, stored under the /var/lock directory
cupsd_log_t
- Set files with the cupsd_log_t type, if you want to treat the data as
cupsd log data, usually stored under the /var/log directory.
Paths:
/var/log/cups(/.*)?, /var/log/turboprint.*,
/usr/local/Brother/fax/.*.log
cupsd_lpd_exec_t
- Set files with the cupsd_lpd_exec_t type, if you want to transition
an executable to the cupsd_lpd_t domain.
cupsd_lpd_tmp_t
- Set files with the cupsd_lpd_tmp_t type, if you want to store cupsd
lpd temporary files in the /tmp directories.
cupsd_lpd_var_run_t
- Set files with the cupsd_lpd_var_run_t type, if you want to store the
cupsd lpd files under the /run directory.
cupsd_rw_etc_t
- Set files with the cupsd_rw_etc_t type, if you want to store cupsd rw
files in the /etc directories.
Paths:
/etc/cups/lpoptions.*, /usr/local/linuxprinter/ppd(/.*)?,
/etc/cups/subscriptions.*, /opt/brother/Printers(.*/)?inf(/.*)?,
/usr/local/Brother/(.*/)?inf(/.*)?, /etc/cups/classes.conf.*,
/usr/lib/bjlib(/.*)?, /etc/cups/ppd(/.*)?, /opt/guten‐
print/ppds(/.*)?, /etc/printcap.*, /etc/alchemist/namespace/print‐
conf(/.*)?, /usr/local/Printer/(.*/)?inf(/.*)?,
/var/lib/cups/certs, /etc/cups/ppds.dat, /etc/cups/certs,
/etc/cups/certs/.*, /etc/cups/printers.conf.*,
/var/lib/cups/certs/.*, /var/cache/foomatic(/.*)?,
/var/cache/alchemist/printconf.*, /etc/cups/cupsd.conf.*,
/var/cache/cups(/.*)?, /usr/share/foomatic/db/oldprinterids
cupsd_tmp_t
- Set files with the cupsd_tmp_t type, if you want to store cupsd tem‐
porary files in the /tmp directories.
cupsd_unit_file_t
- Set files with the cupsd_unit_file_t type, if you want to treat the
files as cupsd unit content.
cupsd_var_run_t
- Set files with the cupsd_var_run_t type, if you want to store the
cupsd files under the /run directory.
Paths:
/var/ccpd(/.*)?, /var/ekpd(/.*)?, /var/turboprint(/.*)?,
/var/run/cups(/.*)?
Note: File context can be temporarily modified with the chcon command.
If you want to permanantly 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.
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
cupsd policy is very flexible allowing users to setup their cupsd pro‐
cesses in as secure a method as possible.
The following process types are defined for cupsd:
cupsd_t, cupsd_config_t, cupsd_lpd_t, cups_pdf_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.
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.
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was autogenerated by genman.py.
SEE ALSOselinux(8), cupsd(8), semanage(8), restorecon(8), chcon(1)dwalsh@redhat.com cupsd cupsd_selinux(8)
