1lpr_selinux(8) SELinux Policy lpr lpr_selinux(8)
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6 lpr_selinux - Security Enhanced Linux Policy for the lpr processes
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9 Security-Enhanced Linux secures the lpr processes via flexible manda‐
10 tory access control.
11 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 For example:
17 ps -eZ | grep lpr_t
19
23 The lpr_t SELinux type can be entered via the lpr_exec_t file type.
24 The default entrypoint paths for the lpr_t domain are the following:
26 /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
33
35 SELinux defines process types (domains) for each process running on the
36 system
37 You can see the context of a process using the -Z option to ps
39 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 The following process types are defined for lpr:
45 lpr_t
47 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
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 If you want to allow all domains to execute in fips_mode, you must turn
61 on the fips_mode boolean. Enabled by default.
62 setsebool -P fips_mode 1
64 If you want to allow system to run with NIS, you must turn on the
68 nis_enabled boolean. Disabled by default.
69 setsebool -P nis_enabled 1
71 If you want to determine whether to support lpd server, you must turn
75 on the use_lpd_server boolean. Disabled by default.
76 setsebool -P use_lpd_server 1
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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.
85 insights_client_tmp_t
87 /var/tmp/insights-client(/.*)?
89 /tmp/insights-client.ppid
90 /var/tmp/insights-client.ppid
91 krb5_host_rcache_t
93 /var/tmp/krb5_0.rcache2
95 /var/cache/krb5rcache(/.*)?
96 /var/tmp/nfs_0
97 /var/tmp/DNS_25
98 /var/tmp/host_0
99 /var/tmp/imap_0
100 /var/tmp/HTTP_23
101 /var/tmp/HTTP_48
102 /var/tmp/ldap_55
103 /var/tmp/ldap_487
104 /var/tmp/ldapmap1_0
105 lpr_tmp_t
107 print_spool_t
110 /var/spool/lpd(/.*)?
112 /var/spool/cups(/.*)?
113 /var/spool/cups-pdf(/.*)?
114
117 SELinux requires files to have an extended attribute to define the file
118 type.
119 You can see the context of a file using the -Z option to ls
121 Policy governs the access confined processes have to these files.
123 SELinux lpr policy is very flexible allowing users to setup their lpr
124 processes in as secure a method as possible.
125 STANDARD FILE CONTEXT
127 SELinux defines the file context types for the lpr, if you wanted to
129 store files with these types in a different paths, you need to execute
130 the semanage command to specify alternate labeling and then use re‐
131 storecon to put the labels on disk.
132 semanage fcontext -a -t lpr_exec_t '/srv/lpr/content(/.*)?'
134 restorecon -R -v /srv/mylpr_content
135 Note: SELinux often uses regular expressions to specify labels that
137 match multiple files.
138 The following file types are defined for lpr:
140 lpr_exec_t
144 - Set files with the lpr_exec_t type, if you want to transition an exe‐
146 cutable to the lpr_t domain.
147 Paths:
150 /usr/bin/lp(.cups)?, /usr/bin/lpq(.cups)?, /usr/bin/lpr(.cups)?,
151 /usr/bin/lprm(.cups)?, /usr/sbin/lpc(.cups)?, /usr/bin/can‐
152 cel(.cups)?, /usr/bin/lpstat(.cups)?, /opt/gutenprint/bin(/.*)?,
153 /opt/gutenprint/sbin(/.*)?, /usr/linuxprinter/bin/l?lpr, /usr/lo‐
154 cal/linuxprinter/bin/l?lpr, /usr/sbin/accept, /usr/sbin/lpinfo,
155 /usr/sbin/lpmove, /usr/sbin/lpadmin, /usr/bin/lpoptions
156 lpr_tmp_t
159 - Set files with the lpr_tmp_t type, if you want to store lpr temporary
161 files in the /tmp directories.
162 Note: File context can be temporarily modified with the chcon command.
166 If you want to permanently change the file context you need to use the
167 semanage fcontext command. This will modify the SELinux labeling data‐
168 base. You will need to use restorecon to apply the labels.
169
172 semanage fcontext can also be used to manipulate default file context
173 mappings.
174 semanage permissive can also be used to manipulate whether or not a
176 process type is permissive.
177 semanage module can also be used to enable/disable/install/remove pol‐
179 icy modules.
180 semanage boolean can also be used to manipulate the booleans
182 system-config-selinux is a GUI tool available to customize SELinux pol‐
185 icy settings.
186
189 This manual page was auto-generated using sepolicy manpage .
190
193 selinux(8), lpr(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
194 setsebool(8)
195lpr 23-10-20 lpr_selinux(8)