checkpolicy_selinux(8)

1checkpolicy_selinux(8)    SELinux Policy checkpolicy    checkpolicy_selinux(8)
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NAME

6       checkpolicy_selinux  - Security Enhanced Linux Policy for the checkpol‐
7       icy processes
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DESCRIPTION

10       Security-Enhanced Linux secures the checkpolicy processes via  flexible
11       mandatory access control.
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13       The  checkpolicy processes execute with the checkpolicy_t SELinux type.
14       You can check if you have these processes running by executing  the  ps
15       command with the -Z qualifier.
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17       For example:
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19       ps -eZ | grep checkpolicy_t
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ENTRYPOINTS

24       The  checkpolicy_t  SELinux  type  can  be  entered  via  the checkpol‐
25       icy_exec_t file type.
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27       The default entrypoint paths for the checkpolicy_t domain are the  fol‐
28       lowing:
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30       /usr/bin/checkpolicy
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PROCESS TYPES

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

53       SELinux  policy is customizable based on least access required.  check‐
54       policy policy is extremely flexible and has several booleans that allow
55       you  to  manipulate  the  policy  and run checkpolicy with the tightest
56       access possible.
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60       If you want to deny any process from ptracing or  debugging  any  other
61       processes,  you  must  turn  on  the  deny_ptrace  boolean.  Enabled by
62       default.
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64       setsebool -P deny_ptrace 1
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68       If you want to allow any process  to  mmap  any  file  on  system  with
69       attribute  file_type,  you must turn on the domain_can_mmap_files bool‐
70       ean. Enabled by default.
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72       setsebool -P domain_can_mmap_files 1
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76       If you want to allow all domains write to kmsg_device, while kernel  is
77       executed  with  systemd.log_target=kmsg parameter, you must turn on the
78       domain_can_write_kmsg boolean. Disabled by default.
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80       setsebool -P domain_can_write_kmsg 1
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84       If you want to allow all domains to use other domains file descriptors,
85       you must turn on the domain_fd_use boolean. Enabled by default.
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87       setsebool -P domain_fd_use 1
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91       If  you  want to allow all domains to have the kernel load modules, you
92       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
93       default.
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95       setsebool -P domain_kernel_load_modules 1
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99       If you want to allow all domains to execute in fips_mode, you must turn
100       on the fips_mode boolean. Enabled by default.
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102       setsebool -P fips_mode 1
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106       If you want to enable reading of urandom for all domains, you must turn
107       on the global_ssp boolean. Disabled by default.
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109       setsebool -P global_ssp 1
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MANAGED FILES

114       The  SELinux  process  type checkpolicy_t can manage files labeled with
115       the following file types.  The paths listed are the default  paths  for
116       these  file  types.  Note the processes UID still need to have DAC per‐
117       missions.
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119       semanage_store_t
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121            /etc/selinux/([^/]*/)?policy(/.*)?
122            /etc/selinux/(minimum|mls|targeted)/active(/.*)?
123            /etc/selinux/([^/]*/)?modules/(active|tmp|previous)(/.*)?
124            /var/lib/selinux(/.*)?
125            /etc/share/selinux/mls(/.*)?
126            /etc/share/selinux/targeted(/.*)?
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FILE CONTEXTS

130       SELinux requires files to have an extended attribute to define the file
131       type.
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133       You can see the context of a file using the -Z option to ls
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135       Policy  governs  the  access  confined  processes  have to these files.
136       SELinux checkpolicy policy is very flexible  allowing  users  to  setup
137       their checkpolicy processes in as secure a method as possible.
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139       The following file types are defined for checkpolicy:
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143       checkpolicy_exec_t
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145       - Set files with the checkpolicy_exec_t type, if you want to transition
146       an executable to the checkpolicy_t domain.
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150       Note: File context can be temporarily modified with the chcon  command.
151       If  you want to permanently change the file context you need to use the
152       semanage fcontext command.  This will modify the SELinux labeling data‐
153       base.  You will need to use restorecon to apply the labels.
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COMMANDS

157       semanage  fcontext  can also be used to manipulate default file context
158       mappings.
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160       semanage permissive can also be used to manipulate  whether  or  not  a
161       process type is permissive.
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163       semanage  module can also be used to enable/disable/install/remove pol‐
164       icy modules.
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166       semanage boolean can also be used to manipulate the booleans
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169       system-config-selinux is a GUI tool available to customize SELinux pol‐
170       icy settings.
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AUTHOR

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