virtd_lxc_selinux(8)

1virtd_lxc_selinux(8)       SELinux Policy virtd_lxc       virtd_lxc_selinux(8)
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NAME

6       virtd_lxc_selinux  -  Security  Enhanced Linux Policy for the virtd_lxc
7       processes
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DESCRIPTION

10       Security-Enhanced Linux secures the virtd_lxc  processes  via  flexible
11       mandatory access control.
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13       The  virtd_lxc processes execute with the virtd_lxc_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 virtd_lxc_t
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ENTRYPOINTS

24       The  virtd_lxc_t  SELinux type can be entered via the virtd_lxc_exec_t,
25       file_type,  unlabeled_t,  proc_type,  filesystem_type,   mtrr_device_t,
26       sysctl_type file types.
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28       The default entrypoint paths for the virtd_lxc_t domain are the follow‐
29       ing:
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31       /usr/libexec/libvirt_lxc, all files on the system, /dev/cpu/mtrr
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PROCESS TYPES

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

54       SELinux  policy  is  customizable  based  on  least  access   required.
55       virtd_lxc  policy  is  extremely flexible and has several booleans that
56       allow you to manipulate the policy and run virtd_lxc with the  tightest
57       access possible.
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61       If  you  want to allow all daemons the ability to read/write terminals,
62       you  must  turn  on  the  allow_daemons_use_tty  boolean.  Disabled  by
63       default.
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65       setsebool -P allow_daemons_use_tty 1
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69       If you want to allow all domains to use other domains file descriptors,
70       you must turn on the allow_domain_fd_use boolean. Enabled by default.
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72       setsebool -P allow_domain_fd_use 1
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76       If you want to allow unconfined executables to make their  heap  memory
77       executable.   Doing  this  is  a  really bad idea. Probably indicates a
78       badly coded executable, but could indicate an attack.  This  executable
79       should  be  reported  in  bugzilla, you must turn on the allow_execheap
80       boolean. Disabled by default.
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82       setsebool -P allow_execheap 1
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86       If you want to allow unconfined executables to map a memory  region  as
87       both  executable  and  writable,  this  is dangerous and the executable
88       should be reported in bugzilla), you must  turn  on  the  allow_execmem
89       boolean. Enabled by default.
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91       setsebool -P allow_execmem 1
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95       If  you  want  to  allow  all  unconfined  executables to use libraries
96       requiring text relocation that are not  labeled  textrel_shlib_t),  you
97       must turn on the allow_execmod boolean. Enabled by default.
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99       setsebool -P allow_execmod 1
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103       If  you  want  to allow unconfined executables to make their stack exe‐
104       cutable.  This should never, ever be necessary.  Probably  indicates  a
105       badly  coded  executable, but could indicate an attack. This executable
106       should be reported in bugzilla), you must turn on  the  allow_execstack
107       boolean. Enabled by default.
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109       setsebool -P allow_execstack 1
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113       If  you  want  to allow confined applications to run with kerberos, you
114       must turn on the allow_kerberos boolean. Enabled by default.
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116       setsebool -P allow_kerberos 1
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120       If you want to allow sysadm to debug or ptrace all processes, you  must
121       turn on the allow_ptrace boolean. Disabled by default.
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123       setsebool -P allow_ptrace 1
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127       If  you  want  to  allow  system  to run with NIS, you must turn on the
128       allow_ypbind boolean. Disabled by default.
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130       setsebool -P allow_ypbind 1
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134       If you want to allow all domains to have the kernel load  modules,  you
135       must  turn  on  the  domain_kernel_load_modules  boolean.  Disabled  by
136       default.
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138       setsebool -P domain_kernel_load_modules 1
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142       If you want to allow all domains to execute in fips_mode, you must turn
143       on the fips_mode boolean. Enabled by default.
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145       setsebool -P fips_mode 1
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149       If you want to enable reading of urandom for all domains, you must turn
150       on the global_ssp boolean. Disabled by default.
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152       setsebool -P global_ssp 1
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156       If you want to allow certain domains to map low memory in  the  kernel,
157       you must turn on the mmap_low_allowed boolean. Disabled by default.
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159       setsebool -P mmap_low_allowed 1
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163       If  you  want to allow confined applications to use nscd shared memory,
164       you must turn on the nscd_use_shm boolean. Enabled by default.
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166       setsebool -P nscd_use_shm 1
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170       If you want to boolean to determine whether the system permits  loading
171       policy,  setting enforcing mode, and changing boolean values.  Set this
172       to true and you have to reboot to set it back, you  must  turn  on  the
173       secure_mode_policyload boolean. Disabled by default.
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175       setsebool -P secure_mode_policyload 1
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179       If you want to support X userspace object manager, you must turn on the
180       xserver_object_manager boolean. Disabled by default.
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182       setsebool -P xserver_object_manager 1
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MANAGED FILES

187       The SELinux process type virtd_lxc_t can manage files labeled with  the
188       following file types.  The paths listed are the default paths for these
189       file types.  Note the processes UID still need to have DAC permissions.
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191       file_type
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193            all files on the system
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FILE CONTEXTS

197       SELinux requires files to have an extended attribute to define the file
198       type.
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200       You can see the context of a file using the -Z option to ls
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202       Policy  governs  the  access  confined  processes  have to these files.
203       SELinux virtd_lxc policy is very flexible allowing users to setup their
204       virtd_lxc processes in as secure a method as possible.
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206       The following file types are defined for virtd_lxc:
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210       virtd_lxc_exec_t
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212       -  Set  files with the virtd_lxc_exec_t type, if you want to transition
213       an executable to the virtd_lxc_t domain.
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217       Note: File context can be temporarily modified with the chcon  command.
218       If  you want to permanently change the file context you need to use the
219       semanage fcontext command.  This will modify the SELinux labeling data‐
220       base.  You will need to use restorecon to apply the labels.
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COMMANDS

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

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