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
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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
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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.
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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 krb5_host_rcache_t
87 /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
99 lpr_tmp_t
101 print_spool_t
104 /var/spool/lpd(/.*)?
106 /var/spool/cups(/.*)?
107 /var/spool/cups-pdf(/.*)?
108
111 SELinux requires files to have an extended attribute to define the file
112 type.
113 You can see the context of a file using the -Z option to ls
115 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.
119 STANDARD FILE CONTEXT
121 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.
126 semanage fcontext -a -t lpr_tmp_t '/srv/mylpr_content(/.*)?'
128 restorecon -R -v /srv/mylpr_content
129 Note: SELinux often uses regular expressions to specify labels that
131 match multiple files.
132 The following file types are defined for lpr:
134 lpr_exec_t
138 - Set files with the lpr_exec_t type, if you want to transition an exe‐
140 cutable to the lpr_t domain.
141 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
150 lpr_tmp_t
153 - Set files with the lpr_tmp_t type, if you want to store lpr temporary
155 files in the /tmp directories.
156 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.
163
166 semanage fcontext can also be used to manipulate default file context
167 mappings.
168 semanage permissive can also be used to manipulate whether or not a
170 process type is permissive.
171 semanage module can also be used to enable/disable/install/remove pol‐
173 icy modules.
174 semanage boolean can also be used to manipulate the booleans
176 system-config-selinux is a GUI tool available to customize SELinux pol‐
179 icy settings.
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183 This manual page was auto-generated using sepolicy manpage .
184
187 selinux(8), lpr(8), semanage(8), restorecon(8), chcon(1), sepolicy(8),
188 setsebool(8)
189lpr 21-11-19 lpr_selinux(8)