tmpreaper_selinux(8)

1tmpreaper_selinux(8)       SELinux Policy tmpreaper       tmpreaper_selinux(8)
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NAME

6       tmpreaper_selinux  -  Security  Enhanced Linux Policy for the tmpreaper
7       processes
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DESCRIPTION

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

24       The  tmpreaper_t  SELinux  type can be entered via the file_type, unla‐
25       beled_t, proc_type, filesystem_type,  tmpreaper_exec_t,  mtrr_device_t,
26       sysctl_type file types.
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28       The default entrypoint paths for the tmpreaper_t domain are the follow‐
29       ing:
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31       all  files  on  the  system,  /usr/sbin/tmpwatch,  /usr/sbin/tmpreaper,
32       /dev/cpu/mtrr
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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       tmpreaper  policy  is  very  flexible  allowing  users  to  setup their
42       tmpreaper processes in as secure a method as possible.
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44       The following process types are defined for tmpreaper:
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46       tmpreaper_t
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48       Note: semanage permissive -a  tmpreaper_t  can  be  used  to  make  the
49       process  type  tmpreaper_t  permissive. SELinux does not deny access to
50       permissive process types, but the AVC (SELinux  denials)  messages  are
51       still generated.
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BOOLEANS

55       SELinux   policy  is  customizable  based  on  least  access  required.
56       tmpreaper policy is extremely flexible and has  several  booleans  that
57       allow  you to manipulate the policy and run tmpreaper with the tightest
58       access possible.
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62       If you want to allow all domains to use other domains file descriptors,
63       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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65       setsebool -P allow_domain_fd_use 1
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69       If  you  want to allow unconfined executables to make their heap memory
70       executable.  Doing this is a really  bad  idea.  Probably  indicates  a
71       badly  coded  executable, but could indicate an attack. This executable
72       should be reported in bugzilla, you must  turn  on  the  allow_execheap
73       boolean. Disabled by default.
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75       setsebool -P allow_execheap 1
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79       If  you  want to allow unconfined executables to map a memory region as
80       both executable and writable, this  is  dangerous  and  the  executable
81       should  be  reported  in  bugzilla), you must turn on the allow_execmem
82       boolean. Enabled by default.
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84       setsebool -P allow_execmem 1
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88       If you want to  allow  all  unconfined  executables  to  use  libraries
89       requiring  text  relocation  that are not labeled textrel_shlib_t), you
90       must turn on the allow_execmod boolean. Enabled by default.
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92       setsebool -P allow_execmod 1
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96       If you want to allow unconfined executables to make  their  stack  exe‐
97       cutable.   This  should  never, ever be necessary. Probably indicates a
98       badly coded executable, but could indicate an attack.  This  executable
99       should  be  reported in bugzilla), you must turn on the allow_execstack
100       boolean. Enabled by default.
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102       setsebool -P allow_execstack 1
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106       If you want to allow sysadm to debug or ptrace all processes, you  must
107       turn on the allow_ptrace boolean. Disabled by default.
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109       setsebool -P allow_ptrace 1
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113       If  you  want to allow all domains to have the kernel load modules, you
114       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
115       default.
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117       setsebool -P domain_kernel_load_modules 1
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121       If you want to allow all domains to execute in fips_mode, you must turn
122       on the fips_mode boolean. Enabled by default.
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124       setsebool -P fips_mode 1
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128       If you want to enable reading of urandom for all domains, you must turn
129       on the global_ssp boolean. Disabled by default.
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131       setsebool -P global_ssp 1
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135       If  you  want to allow certain domains to map low memory in the kernel,
136       you must turn on the mmap_low_allowed boolean. Disabled by default.
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138       setsebool -P mmap_low_allowed 1
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142       If you want to boolean to determine whether the system permits  loading
143       policy,  setting enforcing mode, and changing boolean values.  Set this
144       to true and you have to reboot to set it back, you  must  turn  on  the
145       secure_mode_policyload boolean. Disabled by default.
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147       setsebool -P secure_mode_policyload 1
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151       If you want to support X userspace object manager, you must turn on the
152       xserver_object_manager boolean. Disabled by default.
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154       setsebool -P xserver_object_manager 1
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MANAGED FILES

159       The SELinux process type tmpreaper_t can manage files labeled with  the
160       following file types.  The paths listed are the default paths for these
161       file types.  Note the processes UID still need to have DAC permissions.
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163       file_type
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165            all files on the system
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FILE CONTEXTS

169       SELinux requires files to have an extended attribute to define the file
170       type.
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172       You can see the context of a file using the -Z option to ls
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174       Policy  governs  the  access  confined  processes  have to these files.
175       SELinux tmpreaper policy is very flexible allowing users to setup their
176       tmpreaper processes in as secure a method as possible.
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178       The following file types are defined for tmpreaper:
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182       tmpreaper_exec_t
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184       -  Set  files with the tmpreaper_exec_t type, if you want to transition
185       an executable to the tmpreaper_t domain.
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188       Paths:
189            /usr/sbin/tmpwatch, /usr/sbin/tmpreaper
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192       Note: File context can be temporarily modified with the chcon  command.
193       If  you want to permanently change the file context you need to use the
194       semanage fcontext command.  This will modify the SELinux labeling data‐
195       base.  You will need to use restorecon to apply the labels.
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COMMANDS

199       semanage  fcontext  can also be used to manipulate default file context
200       mappings.
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202       semanage permissive can also be used to manipulate  whether  or  not  a
203       process type is permissive.
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205       semanage  module can also be used to enable/disable/install/remove pol‐
206       icy modules.
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208       semanage boolean can also be used to manipulate the booleans
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211       system-config-selinux is a GUI tool available to customize SELinux pol‐
212       icy settings.
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AUTHOR

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