vmtools_selinux(8)

1vmtools_selinux(8)          SELinux Policy vmtools          vmtools_selinux(8)
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NAME

6       vmtools_selinux  -  Security Enhanced Linux Policy for the vmtools pro‐
7       cesses
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DESCRIPTION

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

24       The  vmtools_t  SELinux type can be entered via the vmtools_exec_t file
25       type.
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27       The default entrypoint paths for the vmtools_t domain are  the  follow‐
28       ing:
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30       /usr/bin/vmtoolsd, /usr/bin/VGAuthService
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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       vmtools  policy  is very flexible allowing users to setup their vmtools
40       processes in as secure a method as possible.
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42       The following process types are defined for vmtools:
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44       vmtools_t, vmtools_helper_t, vmtools_unconfined_t
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46       Note: semanage permissive -a vmtools_t can be used to make the  process
47       type  vmtools_t  permissive. SELinux does not deny access to permissive
48       process types, but the AVC (SELinux denials) messages are still  gener‐
49       ated.
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BOOLEANS

53       SELinux policy is customizable based on least access required.  vmtools
54       policy is extremely flexible and has several booleans that allow you to
55       manipulate  the  policy and run vmtools with the tightest access possi‐
56       ble.
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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.
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64       setsebool -P authlogin_nsswitch_use_ldap 1
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68       If you want to deny user domains applications to map a memory region as
69       both  executable  and  writable,  this  is dangerous and the executable
70       should be reported in bugzilla, you must turn on the deny_execmem bool‐
71       ean. Enabled by default.
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73       setsebool -P deny_execmem 1
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77       If you want to allow all domains to execute in fips_mode, you must turn
78       on the fips_mode boolean. Enabled by default.
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80       setsebool -P fips_mode 1
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84       If you want to allow confined applications to run  with  kerberos,  you
85       must turn on the kerberos_enabled boolean. Enabled by default.
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87       setsebool -P kerberos_enabled 1
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91       If  you  want  to control the ability to mmap a low area of the address
92       space, as configured by /proc/sys/vm/mmap_min_addr, you  must  turn  on
93       the mmap_low_allowed boolean. Disabled by default.
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95       setsebool -P mmap_low_allowed 1
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99       If  you  want  to  allow  system  to run with NIS, you must turn on the
100       nis_enabled boolean. Disabled by default.
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102       setsebool -P nis_enabled 1
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106       If you want to allow confined applications to use nscd  shared  memory,
107       you must turn on the nscd_use_shm boolean. Disabled by default.
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109       setsebool -P nscd_use_shm 1
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113       If  you  want  to  disable  kernel module loading, you must turn on the
114       secure_mode_insmod boolean. Enabled by default.
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116       setsebool -P secure_mode_insmod 1
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120       If you want to allow unconfined executables to make their  heap  memory
121       executable.   Doing  this  is  a  really bad idea. Probably indicates a
122       badly coded executable, but could indicate an attack.  This  executable
123       should   be   reported  in  bugzilla,  you  must  turn  on  the  selin‐
124       uxuser_execheap boolean. Disabled by default.
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126       setsebool -P selinuxuser_execheap 1
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130       If you want to allow unconfined executables to make  their  stack  exe‐
131       cutable.   This  should  never, ever be necessary. Probably indicates a
132       badly coded executable, but could indicate an attack.  This  executable
133       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
134       stack boolean. Enabled by default.
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136       setsebool -P selinuxuser_execstack 1
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MANAGED FILES

141       The SELinux process type vmtools_t can manage files  labeled  with  the
142       following file types.  The paths listed are the default paths for these
143       file types.  Note the processes UID still need to have DAC permissions.
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145       file_type
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147            all files on the system
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FILE CONTEXTS

151       SELinux requires files to have an extended attribute to define the file
152       type.
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154       You can see the context of a file using the -Z option to ls
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156       Policy  governs  the  access  confined  processes  have to these files.
157       SELinux vmtools policy is very flexible allowing users to  setup  their
158       vmtools processes in as secure a method as possible.
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160       STANDARD FILE CONTEXT
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162       SELinux  defines  the file context types for the vmtools, if you wanted
163       to store files with these types in a diffent paths, you need to execute
164       the  semanage  command  to  sepecify  alternate  labeling  and then use
165       restorecon to put the labels on disk.
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167       semanage fcontext -a -t vmtools_tmp_t '/srv/myvmtools_content(/.*)?'
168       restorecon -R -v /srv/myvmtools_content
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170       Note: SELinux often uses regular expressions  to  specify  labels  that
171       match multiple files.
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173       The following file types are defined for vmtools:
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177       vmtools_exec_t
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179       -  Set files with the vmtools_exec_t type, if you want to transition an
180       executable to the vmtools_t domain.
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183       Paths:
184            /usr/bin/vmtoolsd, /usr/bin/VGAuthService
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187       vmtools_helper_exec_t
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189       - Set files with the vmtools_helper_exec_t type, if you want to transi‐
190       tion an executable to the vmtools_helper_t domain.
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194       vmtools_tmp_t
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196       -  Set  files with the vmtools_tmp_t type, if you want to store vmtools
197       temporary files in the /tmp directories.
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201       vmtools_unconfined_exec_t
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203       - Set files with the vmtools_unconfined_exec_t type,  if  you  want  to
204       transition an executable to the vmtools_unconfined_t domain.
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208       vmtools_unit_file_t
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210       - Set files with the vmtools_unit_file_t type, if you want to treat the
211       files as vmtools unit content.
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215       Note: File context can be temporarily modified with the chcon  command.
216       If  you want to permanently change the file context you need to use the
217       semanage fcontext command.  This will modify the SELinux labeling data‐
218       base.  You will need to use restorecon to apply the labels.
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COMMANDS

222       semanage  fcontext  can also be used to manipulate default file context
223       mappings.
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225       semanage permissive can also be used to manipulate  whether  or  not  a
226       process type is permissive.
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228       semanage  module can also be used to enable/disable/install/remove pol‐
229       icy modules.
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231       semanage boolean can also be used to manipulate the booleans
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234       system-config-selinux is a GUI tool available to customize SELinux pol‐
235       icy settings.
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AUTHOR

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