1uml_selinux(8) SELinux Policy uml uml_selinux(8)
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6 uml_selinux - Security Enhanced Linux Policy for the uml processes
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9 Security-Enhanced Linux secures the uml processes via flexible manda‐
10 tory access control.
11 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.
15 For example:
17 ps -eZ | grep uml_t
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23 The uml_t SELinux type can be entered via the uml_exec_t file type.
24 The default entrypoint paths for the uml_t domain are the following:
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30 SELinux defines process types (domains) for each process running on the
31 system
32 You can see the context of a process using the -Z option to ps
34 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.
38 The following process types are defined for uml:
40 uml_switch_t, uml_t
42 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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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.
52 If you want to allow all domains to use other domains file descriptors,
56 you must turn on the allow_domain_fd_use boolean. Enabled by default.
57 setsebool -P allow_domain_fd_use 1
59 If you want to allow sysadm to debug or ptrace all processes, you must
63 turn on the allow_ptrace boolean. Disabled by default.
64 setsebool -P allow_ptrace 1
66 If you want to allow system to run with NIS, you must turn on the
70 allow_ypbind boolean. Disabled by default.
71 setsebool -P allow_ypbind 1
73 If you want to allow all domains to have the kernel load modules, you
77 must turn on the domain_kernel_load_modules boolean. Disabled by
78 default.
79 setsebool -P domain_kernel_load_modules 1
81 If you want to allow all domains to execute in fips_mode, you must turn
85 on the fips_mode boolean. Enabled by default.
86 setsebool -P fips_mode 1
88 If you want to enable reading of urandom for all domains, you must turn
92 on the global_ssp boolean. Disabled by default.
93 setsebool -P global_ssp 1
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99 The SELinux process type uml_t can manage files labeled with the fol‐
100 lowing file types. The paths listed are the default paths for these
101 file types. Note the processes UID still need to have DAC permissions.
102 initrc_tmp_t
104 mnt_t
107 /mnt(/[^/]*)
109 /mnt(/[^/]*)?
110 /rhev(/[^/]*)?
111 /media(/[^/]*)
112 /media(/[^/]*)?
113 /etc/rhgb(/.*)?
114 /media/.hal-.*
115 /net
116 /afs
117 /rhev
118 /misc
119 tmp_t
121 /tmp
123 /usr/tmp
124 /var/tmp
125 /tmp-inst
126 /var/tmp-inst
127 /var/tmp/vi.recover
128 uml_rw_t
130 /home/[^/]*/.uml(/.*)?
132 /home/staff/.uml(/.*)?
133 uml_tmp_t
135 uml_tmpfs_t
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142 SELinux requires files to have an extended attribute to define the file
143 type.
144 You can see the context of a file using the -Z option to ls
146 Policy governs the access confined processes have to these files.
148 SELinux uml policy is very flexible allowing users to setup their uml
149 processes in as secure a method as possible.
150 STANDARD FILE CONTEXT
152 SELinux defines the file context types for the uml, if you wanted to
154 store files with these types in a diffent paths, you need to execute
155 the semanage command to sepecify alternate labeling and then use
156 restorecon to put the labels on disk.
157 semanage fcontext -a -t uml_tmpfs_t '/srv/myuml_content(/.*)?'
159 restorecon -R -v /srv/myuml_content
160 Note: SELinux often uses regular expressions to specify labels that
162 match multiple files.
163 The following file types are defined for uml:
165 uml_exec_t
169 - Set files with the uml_exec_t type, if you want to transition an exe‐
171 cutable to the uml_t domain.
172 uml_ro_t
176 - Set files with the uml_ro_t type, if you want to treat the files as
178 uml read/only content.
179 uml_rw_t
183 - Set files with the uml_rw_t type, if you want to treat the files as
185 uml read/write content.
186 Paths:
189 /home/[^/]*/.uml(/.*)?, /home/staff/.uml(/.*)?
190 uml_switch_exec_t
193 - Set files with the uml_switch_exec_t type, if you want to transition
195 an executable to the uml_switch_t domain.
196 uml_switch_var_run_t
200 - Set files with the uml_switch_var_run_t type, if you want to store
202 the uml switch files under the /run or /var/run directory.
203 uml_tmp_t
207 - Set files with the uml_tmp_t type, if you want to store uml temporary
209 files in the /tmp directories.
210 uml_tmpfs_t
214 - Set files with the uml_tmpfs_t type, if you want to store uml files
216 on a tmpfs file system.
217 Note: File context can be temporarily modified with the chcon command.
221 If you want to permanently change the file context you need to use the
222 semanage fcontext command. This will modify the SELinux labeling data‐
223 base. You will need to use restorecon to apply the labels.
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227 semanage fcontext can also be used to manipulate default file context
228 mappings.
229 semanage permissive can also be used to manipulate whether or not a
231 process type is permissive.
232 semanage module can also be used to enable/disable/install/remove pol‐
234 icy modules.
235 semanage boolean can also be used to manipulate the booleans
237 system-config-selinux is a GUI tool available to customize SELinux pol‐
240 icy settings.
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244 This manual page was auto-generated using sepolicy manpage .
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248 selinux(8), uml(8), semanage(8), restorecon(8), chcon(1) , setse‐
249 bool(8), uml_switch_selinux(8), uml_switch_selinux(8)
250uml 15-06-03 uml_selinux(8)