1lpr_selinux(8)                SELinux Policy lpr                lpr_selinux(8)
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NAME

6       lpr_selinux - Security Enhanced Linux Policy for the lpr processes
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DESCRIPTION

9       Security-Enhanced  Linux  secures the lpr processes via flexible manda‐
10       tory access control.
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12       The lpr processes execute with the lpr_t SELinux type. You can check if
13       you  have  these processes running by executing the ps command with the
14       -Z qualifier.
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16       For example:
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18       ps -eZ | grep lpr_t
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ENTRYPOINTS

23       The lpr_t SELinux type can be entered via the lpr_exec_t file type.
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25       The default entrypoint paths for the lpr_t domain are the following:
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27       /usr/bin/lp(.cups)?,    /usr/bin/lpq(.cups)?,     /usr/bin/lpr(.cups)?,
28       /usr/bin/lprm(.cups)?,  /usr/sbin/lpc(.cups)?, /usr/bin/cancel(.cups)?,
29       /usr/bin/lpstat(.cups)?,     /opt/gutenprint/bin(/.*)?,     /opt/guten‐
30       print/sbin(/.*)?,     /usr/linuxprinter/bin/l?lpr,    /usr/local/linux‐
31       printer/bin/l?lpr,  /usr/sbin/accept,  /usr/sbin/lpinfo,  /usr/sbin/lp‐
32       move, /usr/sbin/lpadmin, /usr/bin/lpoptions
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PROCESS TYPES

35       SELinux defines process types (domains) for each process running on the
36       system
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38       You can see the context of a process using the -Z option to ps
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40       Policy governs the access confined processes have  to  files.   SELinux
41       lpr policy is very flexible allowing users to setup their lpr processes
42       in as secure a method as possible.
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44       The following process types are defined for lpr:
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46       lpr_t
47
48       Note: semanage permissive -a lpr_t can be used to make the process type
49       lpr_t  permissive.  SELinux  does not deny access to permissive process
50       types, but the AVC (SELinux denials) messages are still generated.
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BOOLEANS

54       SELinux policy is customizable based on  least  access  required.   lpr
55       policy is extremely flexible and has several booleans that allow you to
56       manipulate the policy and run lpr with the tightest access possible.
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60       If you want to allow all domains to execute in fips_mode, you must turn
61       on the fips_mode boolean. Enabled by default.
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63       setsebool -P fips_mode 1
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67       If  you  want  to  allow  system  to run with NIS, you must turn on the
68       nis_enabled boolean. Disabled by default.
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70       setsebool -P nis_enabled 1
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74       If you want to determine whether to support lpd server, you  must  turn
75       on the use_lpd_server boolean. Disabled by default.
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77       setsebool -P use_lpd_server 1
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MANAGED FILES

82       The  SELinux  process type lpr_t can manage files labeled with the fol‐
83       lowing file types.  The paths listed are the default  paths  for  these
84       file types.  Note the processes UID still need to have DAC permissions.
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86       krb5_host_rcache_t
87
88            /var/tmp/krb5_0.rcache2
89            /var/cache/krb5rcache(/.*)?
90            /var/tmp/nfs_0
91            /var/tmp/DNS_25
92            /var/tmp/host_0
93            /var/tmp/imap_0
94            /var/tmp/HTTP_23
95            /var/tmp/HTTP_48
96            /var/tmp/ldap_55
97            /var/tmp/ldap_487
98            /var/tmp/ldapmap1_0
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100       lpr_tmp_t
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102
103       print_spool_t
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105            /var/spool/lpd(/.*)?
106            /var/spool/cups(/.*)?
107            /var/spool/cups-pdf(/.*)?
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109

FILE CONTEXTS

111       SELinux requires files to have an extended attribute to define the file
112       type.
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114       You can see the context of a file using the -Z option to ls
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116       Policy governs the access  confined  processes  have  to  these  files.
117       SELinux  lpr  policy is very flexible allowing users to setup their lpr
118       processes in as secure a method as possible.
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120       STANDARD FILE CONTEXT
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122       SELinux defines the file context types for the lpr, if  you  wanted  to
123       store  files  with  these types in a diffent paths, you need to execute
124       the semanage command to specify alternate labeling  and  then  use  re‐
125       storecon to put the labels on disk.
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127       semanage fcontext -a -t lpr_tmp_t '/srv/mylpr_content(/.*)?'
128       restorecon -R -v /srv/mylpr_content
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130       Note:  SELinux  often  uses  regular expressions to specify labels that
131       match multiple files.
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133       The following file types are defined for lpr:
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137       lpr_exec_t
138
139       - Set files with the lpr_exec_t type, if you want to transition an exe‐
140       cutable to the lpr_t domain.
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142
143       Paths:
144            /usr/bin/lp(.cups)?,  /usr/bin/lpq(.cups)?,  /usr/bin/lpr(.cups)?,
145            /usr/bin/lprm(.cups)?,    /usr/sbin/lpc(.cups)?,     /usr/bin/can‐
146            cel(.cups)?,  /usr/bin/lpstat(.cups)?,  /opt/gutenprint/bin(/.*)?,
147            /opt/gutenprint/sbin(/.*)?, /usr/linuxprinter/bin/l?lpr,  /usr/lo‐
148            cal/linuxprinter/bin/l?lpr,   /usr/sbin/accept,  /usr/sbin/lpinfo,
149            /usr/sbin/lpmove, /usr/sbin/lpadmin, /usr/bin/lpoptions
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152       lpr_tmp_t
153
154       - Set files with the lpr_tmp_t type, if you want to store lpr temporary
155       files in the /tmp directories.
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159       Note:  File context can be temporarily modified with the chcon command.
160       If you want to permanently change the file context you need to use  the
161       semanage fcontext command.  This will modify the SELinux labeling data‐
162       base.  You will need to use restorecon to apply the labels.
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COMMANDS

166       semanage fcontext can also be used to manipulate default  file  context
167       mappings.
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169       semanage  permissive  can  also  be used to manipulate whether or not a
170       process type is permissive.
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172       semanage module can also be used to enable/disable/install/remove  pol‐
173       icy modules.
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175       semanage boolean can also be used to manipulate the booleans
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177
178       system-config-selinux is a GUI tool available to customize SELinux pol‐
179       icy settings.
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AUTHOR

183       This manual page was auto-generated using sepolicy manpage .
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SEE ALSO

187       selinux(8), lpr(8), semanage(8), restorecon(8), chcon(1),  sepolicy(8),
188       setsebool(8)
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192lpr                                21-11-19                     lpr_selinux(8)
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