cupsd_selinux man page on Oracle

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cupsd_selinux(8)	     SELinux Policy cupsd	      cupsd_selinux(8)

NAME
       cupsd_selinux - Security Enhanced Linux Policy for the cupsd processes

DESCRIPTION
       Security-Enhanced Linux secures the cupsd processes via flexible manda‐
       tory access control.

       The cupsd processes execute with the  cupsd_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 cupsd_t

ENTRYPOINTS
       The cupsd_t SELinux type can be entered via the cupsd_exec_t file type.

       The default entrypoint paths for the cupsd_t domain are the following:

       /usr/sbin/hp-[^/]+, /usr/share/hplip/.*.py, /usr/lib/cups/backend/hp.*,
       /usr/bin/hpijs,	 /usr/sbin/cupsd,   /usr/sbin/hpiod,   /usr/sbin/cups-
       browsed

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 cupsd_t can be used to make the process
       type cupsd_t permissive. SELinux does not  deny	access	to  permissive
       process	types, but the AVC (SELinux denials) messages are still gener‐
       ated.

BOOLEANS
       SELinux policy is customizable based on least access  required.	 cupsd
       policy is extremely flexible and has several booleans that allow you to
       manipulate the policy and run cupsd 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. Disabled by default.

       setsebool -P nscd_use_shm 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 cups_pdf_t, cupsd_con‐
       fig_t, cupsd_lpd_t,  cupsd_t,  you  must	 turn  on  the	authlogin_nss‐
       witch_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
       kerberos_enabled boolean.

       setsebool -P kerberos_enabled 1

MANAGED FILES
       The SELinux process type cupsd_t can manage files labeled with the fol‐
       lowing file types.  The paths listed are the default  paths  for	 these
       file types.  Note the processes UID still need to have DAC permissions.

       anon_inodefs_t

       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

       cupsd_interface_t

	    /etc/cups/interfaces(/.*)?

       cupsd_lock_t

       cupsd_log_t

	    /var/log/hp(/.*)?
	    /var/log/cups(/.*)?
	    /usr/Brother/fax/.*.log.*
	    /var/log/turboprint.*

       cupsd_rw_etc_t

	    /etc/printcap.*
	    /etc/cups/ppd(/.*)?
	    /usr/Brother/(.*/)?inf(/.*)?
	    /usr/Printer/(.*/)?inf(/.*)?
	    /usr/lib/bjlib(/.*)?
	    /var/lib/iscan(/.*)?
	    /var/cache/cups(/.*)?
	    /etc/cups/certs/.*
	    /etc/opt/Brother/(.*/)?inf(/.*)?
	    /etc/cups/lpoptions.*
	    /var/cache/foomatic(/.*)?
	    /etc/cups/cupsd.conf.*
	    /var/lib/cups/certs/.*
	    /opt/gutenprint/ppds(/.*)?
	    /opt/brother/Printers(.*/)?inf(/.*)?
	    /etc/cups/classes.conf.*
	    /etc/cups/printers.conf.*
	    /etc/cups/subscriptions.*
	    /etc/opt/brother/Printers/(.*/)?inf(/.*)?
	    /usr/local/linuxprinter/ppd(/.*)?
	    /var/cache/alchemist/printconf.*
	    /etc/alchemist/namespace/printconf(/.*)?
	    /etc/cups/certs
	    /etc/cups/ppds.dat
	    /var/lib/cups/certs
	    /usr/share/foomatic/db/oldprinterids

       cupsd_tmp_t

       cupsd_var_lib_t

	    /var/lib/hp(/.*)?

       cupsd_var_run_t

	    /var/ccpd(/.*)?
	    /var/ekpd(/.*)?
	    /var/run/hp.*.pid
	    /var/run/hp.*.port
	    /var/run/cups(/.*)?
	    /var/run/hplip(/.*)
	    /var/turboprint(/.*)?

       faillog_t

	    /var/log/btmp.*
	    /var/log/faillog.*
	    /var/log/tallylog.*
	    /var/run/faillock(/.*)?

       krb5_host_rcache_t

	    /var/cache/krb5rcache(/.*)?
	    /var/tmp/nfs_0
	    /var/tmp/DNS_25
	    /var/tmp/host_0
	    /var/tmp/imap_0
	    /var/tmp/HTTP_23
	    /var/tmp/HTTP_48
	    /var/tmp/ldap_55
	    /var/tmp/ldap_487
	    /var/tmp/ldapmap1_0

       print_spool_t

	    /var/spool/lpd(/.*)?
	    /var/spool/cups(/.*)?
	    /var/spool/cups-pdf(/.*)?

       root_t

	    /
	    /initrd

       samba_var_t

	    /var/nmbd(/.*)?
	    /var/lib/samba(/.*)?
	    /var/cache/samba(/.*)?
	    /var/spool/samba(/.*)?

       security_t

	    /selinux

       usbfs_t

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.

       STANDARD FILE CONTEXT

       SELinux defines the file context types for the cupsd, 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 cupsd_config_exec_t '/srv/cupsd/content(/.*)?'
       restorecon -R -v /srv/mycupsd_content

       Note:  SELinux  often  uses  regular expressions to specify labels that
       match multiple files.

       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/hal_lpadmin,   /usr/libexec/hal_lpadmin,	/usr/bin/cups-
	    config-daemon,  /usr/sbin/printconf-backend,   /usr/lib/udev/udev-
	    configure-printer, /usr/libexec/cups-pk-helper-mechanism

       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 or /var/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:
	    /etc/hp(/.*)?, /etc/cups(/.*)?, /usr/share/cups(/.*)?

       cupsd_exec_t

       -  Set  files  with the cupsd_exec_t type, if you want to transition an
       executable to the cupsd_t domain.

       Paths:
	    /usr/sbin/hp-[^/]+,	 /usr/share/hplip/.*.py,   /usr/lib/cups/back‐
	    end/hp.*,	 /usr/bin/hpijs,   /usr/sbin/cupsd,   /usr/sbin/hpiod,
	    /usr/sbin/cups-browsed

       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/hp(/.*)?, /var/log/cups(/.*)?, /usr/Brother/fax/.*.log.*,
	    /var/log/turboprint.*

       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 or /var/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/printcap.*,				  /etc/cups/ppd(/.*)?,
	    /usr/Brother/(.*/)?inf(/.*)?,	 /usr/Printer/(.*/)?inf(/.*)?,
	    /usr/lib/bjlib(/.*)?, /var/lib/iscan(/.*)?, /var/cache/cups(/.*)?,
	    /etc/cups/certs/.*,		     /etc/opt/Brother/(.*/)?inf(/.*)?,
	    /etc/cups/lpoptions.*,		    /var/cache/foomatic(/.*)?,
	    /etc/cups/cupsd.conf.*,    /var/lib/cups/certs/.*,	   /opt/guten‐
	    print/ppds(/.*)?,		 /opt/brother/Printers(.*/)?inf(/.*)?,
	    /etc/cups/classes.conf.*,		    /etc/cups/printers.conf.*,
	    /etc/cups/subscriptions.*,		       /etc/opt/brother/Print‐
	    ers/(.*/)?inf(/.*)?,	    /usr/local/linuxprinter/ppd(/.*)?,
	    /var/cache/alchemist/printconf.*,  /etc/alchemist/namespace/print‐
	    conf(/.*)?,		 /etc/cups/certs,	   /etc/cups/ppds.dat,
	    /var/lib/cups/certs, /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_lib_t

       -  Set  files  with  the cupsd_var_lib_t type, if you want to store the
       cupsd files under the /var/lib directory.

       cupsd_var_run_t

       - Set files with the cupsd_var_run_t type, if you  want	to  store  the
       cupsd files under the /run or /var/run directory.

       Paths:
	    /var/ccpd(/.*)?,	    /var/ekpd(/.*)?,	    /var/run/hp.*.pid,
	    /var/run/hp.*.port,	  /var/run/cups(/.*)?,	  /var/run/hplip(/.*),
	    /var/turboprint(/.*)?

       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 ALSO
       selinux(8), cupsd(8), semanage(8), restorecon(8), chcon(1), sepolicy(8)
       ,     setsebool(8),    cups_pdf_selinux(8),    cupsd_config_selinux(8),
       cupsd_lpd_selinux(8)

cupsd				   14-05-08		      cupsd_selinux(8)
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