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 exec_type, mount‐
25       point file types.
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27       The default entrypoint paths for the virtd_lxc_t domain are the follow‐
28       ing:
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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       virtd_lxc  policy  is  very  flexible  allowing  users  to  setup their
40       virtd_lxc processes in as secure a method as possible.
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42       The following process types are defined for virtd_lxc:
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44       virtd_lxc_t
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46       Note: semanage permissive -a  virtd_lxc_t  can  be  used  to  make  the
47       process  type  virtd_lxc_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.
54       virtd_lxc policy is extremely flexible and has  several  booleans  that
55       allow  you to manipulate the policy and run virtd_lxc with the tightest
56       access possible.
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60       If you want to deny user domains applications to map a memory region as
61       both  executable  and  writable,  this  is dangerous and the executable
62       should be reported in bugzilla, you must turn on the deny_execmem bool‐
63       ean. Enabled by default.
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65       setsebool -P deny_execmem 1
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69       If  you  want  to control the ability to mmap a low area of the address
70       space, as configured by /proc/sys/vm/mmap_min_addr, you  must  turn  on
71       the mmap_low_allowed boolean. Disabled by default.
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73       setsebool -P mmap_low_allowed 1
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77       If  you want to disable kernel module loading, you must turn on the se‐
78       cure_mode_insmod boolean. Enabled by default.
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80       setsebool -P secure_mode_insmod 1
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84       If you want to allow unconfined executables to make their  heap  memory
85       executable.   Doing  this  is  a  really bad idea. Probably indicates a
86       badly coded executable, but could indicate an attack.  This  executable
87       should  be  reported  in bugzilla, you must turn on the selinuxuser_ex‐
88       echeap boolean. Disabled by default.
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90       setsebool -P selinuxuser_execheap 1
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94       If you want to allow unconfined executables to make  their  stack  exe‐
95       cutable.   This  should  never, ever be necessary. Probably indicates a
96       badly coded executable, but could indicate an attack.  This  executable
97       should  be reported in bugzilla, you must turn on the selinuxuser_exec‐
98       stack boolean. Enabled by default.
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100       setsebool -P selinuxuser_execstack 1
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104       If you want to allow virtual processes to run as userdomains, you  must
105       turn on the virt_transition_userdomain boolean. Disabled by default.
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107       setsebool -P virt_transition_userdomain 1
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MANAGED FILES

112       The  SELinux process type virtd_lxc_t can manage files labeled with the
113       following file types.  The paths listed are the default paths for these
114       file types.  Note the processes UID still need to have DAC permissions.
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116       file_type
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118            all files on the system
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FILE CONTEXTS

122       SELinux requires files to have an extended attribute to define the file
123       type.
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125       You can see the context of a file using the -Z option to ls
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127       Policy governs the access  confined  processes  have  to  these  files.
128       SELinux virtd_lxc policy is very flexible allowing users to setup their
129       virtd_lxc processes in as secure a method as possible.
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131       The following file types are defined for virtd_lxc:
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135       virtd_lxc_exec_t
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137       - Set files with the virtd_lxc_exec_t type, if you want  to  transition
138       an executable to the virtd_lxc_t domain.
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142       Note:  File context can be temporarily modified with the chcon command.
143       If you want to permanently change the file context you need to use  the
144       semanage fcontext command.  This will modify the SELinux labeling data‐
145       base.  You will need to use restorecon to apply the labels.
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COMMANDS

149       semanage fcontext can also be used to manipulate default  file  context
150       mappings.
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152       semanage  permissive  can  also  be used to manipulate whether or not a
153       process type is permissive.
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155       semanage module can also be used to enable/disable/install/remove  pol‐
156       icy modules.
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158       semanage boolean can also be used to manipulate the booleans
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161       system-config-selinux is a GUI tool available to customize SELinux pol‐
162       icy settings.
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AUTHOR

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