uml_selinux(8)

1uml_selinux(8)                SELinux Policy uml                uml_selinux(8)
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NAME

6       uml_selinux - Security Enhanced Linux Policy for the uml processes
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DESCRIPTION

9       Security-Enhanced  Linux  secures the uml processes via flexible manda‐
10       tory access control.
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12       The uml processes execute with the uml_t SELinux type. You can check if
13       you  have  these processes running by executing the ps command with the
14       -Z qualifier.
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16       For example:
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18       ps -eZ | grep uml_t
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ENTRYPOINTS

23       The uml_t SELinux type can be entered via the uml_exec_t file type.
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25       The default entrypoint paths for the uml_t domain are the following:
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PROCESS TYPES

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

49       SELinux  policy  is  customizable  based on least access required.  uml
50       policy is extremely flexible and has several booleans that allow you to
51       manipulate the policy and run uml with the tightest access possible.
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55       If you want to allow users to resolve user passwd entries directly from
56       ldap rather then using a sssd server, you  must  turn  on  the  authlo‐
57       gin_nsswitch_use_ldap boolean. Disabled by default.
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59       setsebool -P authlogin_nsswitch_use_ldap 1
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63       If you want to allow all domains to execute in fips_mode, you must turn
64       on the fips_mode boolean. Enabled by default.
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66       setsebool -P fips_mode 1
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70       If you want to allow confined applications to run  with  kerberos,  you
71       must turn on the kerberos_enabled boolean. Disabled by default.
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73       setsebool -P kerberos_enabled 1
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77       If  you  want  to  allow  system  to run with NIS, you must turn on the
78       nis_enabled boolean. Disabled by default.
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80       setsebool -P nis_enabled 1
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84       If you want to allow confined applications to use nscd  shared  memory,
85       you must turn on the nscd_use_shm boolean. Disabled by default.
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87       setsebool -P nscd_use_shm 1
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91       If  you  want  to  support  NFS  home directories, you must turn on the
92       use_nfs_home_dirs boolean. Enabled by default.
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94       setsebool -P use_nfs_home_dirs 1
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98       If you want to support SAMBA home directories, you  must  turn  on  the
99       use_samba_home_dirs boolean. Disabled by default.
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101       setsebool -P use_samba_home_dirs 1
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MANAGED FILES

106       The  SELinux  process type uml_t can manage files labeled with the fol‐
107       lowing file types.  The paths listed are the default  paths  for  these
108       file types.  Note the processes UID still need to have DAC permissions.
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110       cifs_t
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113       nfs_t
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116       uml_rw_t
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118            /home/[^/]+/.uml(/.*)?
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120       uml_tmp_t
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123       uml_tmpfs_t
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FILE CONTEXTS

128       SELinux requires files to have an extended attribute to define the file
129       type.
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131       You can see the context of a file using the -Z option to ls
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133       Policy governs the access  confined  processes  have  to  these  files.
134       SELinux  uml  policy is very flexible allowing users to setup their uml
135       processes in as secure a method as possible.
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137       STANDARD FILE CONTEXT
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139       SELinux defines the file context types for the uml, if  you  wanted  to
140       store  files  with  these types in a diffent paths, you need to execute
141       the semanage command  to  sepecify  alternate  labeling  and  then  use
142       restorecon to put the labels on disk.
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144       semanage fcontext -a -t uml_switch_var_run_t '/srv/myuml_content(/.*)?'
145       restorecon -R -v /srv/myuml_content
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147       Note:  SELinux  often  uses  regular expressions to specify labels that
148       match multiple files.
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150       The following file types are defined for uml:
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154       uml_exec_t
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156       - Set files with the uml_exec_t type, if you want to transition an exe‐
157       cutable to the uml_t domain.
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161       uml_ro_t
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163       -  Set  files with the uml_ro_t type, if you want to treat the files as
164       uml read/only content.
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168       uml_rw_t
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170       - Set files with the uml_rw_t type, if you want to treat the  files  as
171       uml read/write content.
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175       uml_switch_exec_t
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177       -  Set files with the uml_switch_exec_t type, if you want to transition
178       an executable to the uml_switch_t domain.
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182       uml_switch_var_run_t
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184       - Set files with the uml_switch_var_run_t type, if you  want  to  store
185       the uml switch files under the /run or /var/run directory.
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189       uml_tmp_t
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191       - Set files with the uml_tmp_t type, if you want to store uml temporary
192       files in the /tmp directories.
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196       uml_tmpfs_t
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198       - Set files with the uml_tmpfs_t type, if you want to store  uml  files
199       on a tmpfs file system.
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203       Note:  File context can be temporarily modified with the chcon command.
204       If you want to permanently change the file context you need to use  the
205       semanage fcontext command.  This will modify the SELinux labeling data‐
206       base.  You will need to use restorecon to apply the labels.
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COMMANDS

210       semanage fcontext can also be used to manipulate default  file  context
211       mappings.
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213       semanage  permissive  can  also  be used to manipulate whether or not a
214       process type is permissive.
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216       semanage module can also be used to enable/disable/install/remove  pol‐
217       icy modules.
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219       semanage boolean can also be used to manipulate the booleans
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222       system-config-selinux is a GUI tool available to customize SELinux pol‐
223       icy settings.
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AUTHOR

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