lpr_selinux(8)

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,
32       /usr/sbin/lpmove, /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
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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       print_spool_t
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88            /var/spool/lpd(/.*)?
89            /var/spool/cups(/.*)?
90            /var/spool/cups-pdf(/.*)?
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FILE CONTEXTS

94       SELinux requires files to have an extended attribute to define the file
95       type.
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97       You can see the context of a file using the -Z option to ls
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99       Policy governs the access  confined  processes  have  to  these  files.
100       SELinux  lpr  policy is very flexible allowing users to setup their lpr
101       processes in as secure a method as possible.
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103       STANDARD FILE CONTEXT
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105       SELinux defines the file context types for the lpr, if  you  wanted  to
106       store  files  with  these types in a diffent paths, you need to execute
107       the semanage command  to  sepecify  alternate  labeling  and  then  use
108       restorecon to put the labels on disk.
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110       semanage fcontext -a -t lpr_tmp_t '/srv/mylpr_content(/.*)?'
111       restorecon -R -v /srv/mylpr_content
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113       Note:  SELinux  often  uses  regular expressions to specify labels that
114       match multiple files.
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116       The following file types are defined for lpr:
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120       lpr_exec_t
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122       - Set files with the lpr_exec_t type, if you want to transition an exe‐
123       cutable to the lpr_t domain.
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126       Paths:
127            /usr/bin/lp(.cups)?,  /usr/bin/lpq(.cups)?,  /usr/bin/lpr(.cups)?,
128            /usr/bin/lprm(.cups)?,    /usr/sbin/lpc(.cups)?,     /usr/bin/can‐
129            cel(.cups)?,  /usr/bin/lpstat(.cups)?,  /opt/gutenprint/bin(/.*)?,
130            /opt/gutenprint/sbin(/.*)?,           /usr/linuxprinter/bin/l?lpr,
131            /usr/local/linuxprinter/bin/l?lpr,               /usr/sbin/accept,
132            /usr/sbin/lpinfo,       /usr/sbin/lpmove,       /usr/sbin/lpadmin,
133            /usr/bin/lpoptions
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136       lpr_tmp_t
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138       - Set files with the lpr_tmp_t type, if you want to store lpr temporary
139       files in the /tmp directories.
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143       Note: File context can be temporarily modified with the chcon  command.
144       If  you want to permanently change the file context you need to use the
145       semanage fcontext command.  This will modify the SELinux labeling data‐
146       base.  You will need to use restorecon to apply the labels.
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COMMANDS

150       semanage  fcontext  can also be used to manipulate default file context
151       mappings.
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153       semanage permissive can also be used to manipulate  whether  or  not  a
154       process type is permissive.
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156       semanage  module can also be used to enable/disable/install/remove pol‐
157       icy modules.
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159       semanage boolean can also be used to manipulate the booleans
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162       system-config-selinux is a GUI tool available to customize SELinux pol‐
163       icy settings.
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AUTHOR

167       This manual page was auto-generated using sepolicy manpage .
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