1lpr_selinux(8)                SELinux Policy lpr                lpr_selinux(8)
2
3
4

NAME

6       lpr_selinux - Security Enhanced Linux Policy for the lpr processes
7

DESCRIPTION

9       Security-Enhanced  Linux  secures the lpr processes via flexible manda‐
10       tory access control.
11
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.
15
16       For example:
17
18       ps -eZ | grep lpr_t
19
20
21

ENTRYPOINTS

23       The lpr_t SELinux type can be entered via the lpr_exec_t file type.
24
25       The default entrypoint paths for the lpr_t domain are the following:
26
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
33

PROCESS TYPES

35       SELinux defines process types (domains) for each process running on the
36       system
37
38       You can see the context of a process using the -Z option to ps
39
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.
43
44       The following process types are defined for lpr:
45
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.
51
52

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.
57
58
59
60       If you want to allow users to resolve user passwd entries directly from
61       ldap  rather  then  using  a  sssd server, you must turn on the authlo‐
62       gin_nsswitch_use_ldap boolean. Disabled by default.
63
64       setsebool -P authlogin_nsswitch_use_ldap 1
65
66
67
68       If you want to allow all domains to execute in fips_mode, you must turn
69       on the fips_mode boolean. Enabled by default.
70
71       setsebool -P fips_mode 1
72
73
74
75       If  you  want  to allow confined applications to run with kerberos, you
76       must turn on the kerberos_enabled boolean. Enabled by default.
77
78       setsebool -P kerberos_enabled 1
79
80
81
82       If you want to allow system to run with  NIS,  you  must  turn  on  the
83       nis_enabled boolean. Disabled by default.
84
85       setsebool -P nis_enabled 1
86
87
88
89       If  you  want to allow confined applications to use nscd shared memory,
90       you must turn on the nscd_use_shm boolean. Enabled by default.
91
92       setsebool -P nscd_use_shm 1
93
94
95
96       If you want to determine whether to support lpd server, you  must  turn
97       on the use_lpd_server boolean. Disabled by default.
98
99       setsebool -P use_lpd_server 1
100
101
102

MANAGED FILES

104       The  SELinux  process type lpr_t can manage files labeled with the fol‐
105       lowing file types.  The paths listed are the default  paths  for  these
106       file types.  Note the processes UID still need to have DAC permissions.
107
108       lpr_tmp_t
109
110
111       print_spool_t
112
113            /var/spool/lpd(/.*)?
114            /var/spool/cups(/.*)?
115            /var/spool/cups-pdf(/.*)?
116
117

FILE CONTEXTS

119       SELinux requires files to have an extended attribute to define the file
120       type.
121
122       You can see the context of a file using the -Z option to ls
123
124       Policy governs the access  confined  processes  have  to  these  files.
125       SELinux  lpr  policy is very flexible allowing users to setup their lpr
126       processes in as secure a method as possible.
127
128       STANDARD FILE CONTEXT
129
130       SELinux defines the file context types for the lpr, if  you  wanted  to
131       store  files  with  these types in a diffent paths, you need to execute
132       the semanage command  to  sepecify  alternate  labeling  and  then  use
133       restorecon to put the labels on disk.
134
135       semanage fcontext -a -t lpr_tmp_t '/srv/mylpr_content(/.*)?'
136       restorecon -R -v /srv/mylpr_content
137
138       Note:  SELinux  often  uses  regular expressions to specify labels that
139       match multiple files.
140
141       The following file types are defined for lpr:
142
143
144
145       lpr_exec_t
146
147       - Set files with the lpr_exec_t type, if you want to transition an exe‐
148       cutable to the lpr_t domain.
149
150
151       Paths:
152            /usr/bin/lp(.cups)?,  /usr/bin/lpq(.cups)?,  /usr/bin/lpr(.cups)?,
153            /usr/bin/lprm(.cups)?,    /usr/sbin/lpc(.cups)?,     /usr/bin/can‐
154            cel(.cups)?,  /usr/bin/lpstat(.cups)?,  /opt/gutenprint/bin(/.*)?,
155            /opt/gutenprint/sbin(/.*)?,           /usr/linuxprinter/bin/l?lpr,
156            /usr/local/linuxprinter/bin/l?lpr,               /usr/sbin/accept,
157            /usr/sbin/lpinfo,       /usr/sbin/lpmove,       /usr/sbin/lpadmin,
158            /usr/bin/lpoptions
159
160
161       lpr_tmp_t
162
163       - Set files with the lpr_tmp_t type, if you want to store lpr temporary
164       files in the /tmp directories.
165
166
167
168       Note: File context can be temporarily modified with the chcon  command.
169       If  you want to permanently change the file context you need to use the
170       semanage fcontext command.  This will modify the SELinux labeling data‐
171       base.  You will need to use restorecon to apply the labels.
172
173

COMMANDS

175       semanage  fcontext  can also be used to manipulate default file context
176       mappings.
177
178       semanage permissive can also be used to manipulate  whether  or  not  a
179       process type is permissive.
180
181       semanage  module can also be used to enable/disable/install/remove pol‐
182       icy modules.
183
184       semanage boolean can also be used to manipulate the booleans
185
186
187       system-config-selinux is a GUI tool available to customize SELinux pol‐
188       icy settings.
189
190

AUTHOR

192       This manual page was auto-generated using sepolicy manpage .
193
194

SEE ALSO

196       selinux(8),  lpr(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
197       setsebool(8)
198
199
200
201lpr                                19-10-08                     lpr_selinux(8)
Impressum