sandbox_xserver_selinux(8)

1sandbox_xserver_selinux(8S)ELinux Policy sandbox_xservesrandbox_xserver_selinux(8)
2
3
4

NAME

6       sandbox_xserver_selinux  - Security Enhanced Linux Policy for the sand‐
7       box_xserver processes
8

DESCRIPTION

10       Security-Enhanced Linux secures the sandbox_xserver processes via flex‐
11       ible mandatory access control.
12
13       The   sandbox_xserver  processes  execute  with  the  sandbox_xserver_t
14       SELinux type. You can check if you have these processes running by exe‐
15       cuting the ps command with the -Z qualifier.
16
17       For example:
18
19       ps -eZ | grep sandbox_xserver_t
20
21
22

ENTRYPOINTS

24       The   sandbox_xserver_t   SELinux   type   can   be   entered  via  the
25       xserver_exec_t file type.
26
27       The default entrypoint paths for the sandbox_xserver_t domain  are  the
28       following:
29
30       /usr/bin/nvidia.*,    /usr/bin/Xair,    /usr/bin/Xorg,   /usr/bin/Xvnc,
31       /usr/bin/Xephyr,           /usr/bin/x11vnc,           /usr/X11R6/bin/X,
32       /usr/X11R6/bin/Xorg,    /usr/X11R6/bin/Xipaq,    /usr/libexec/Xorg.bin,
33       /usr/X11R6/bin/XFree86,  /usr/libexec/Xorg.wrap,  /usr/X11R6/bin/Xwrap‐
34       per, /usr/libexec/gsd-backlight-helper
35

PROCESS TYPES

37       SELinux defines process types (domains) for each process running on the
38       system
39
40       You can see the context of a process using the -Z option to ps
41
42       Policy governs the access confined processes have  to  files.   SELinux
43       sandbox_xserver  policy  is very flexible allowing users to setup their
44       sandbox_xserver processes in as secure a method as possible.
45
46       The following process types are defined for sandbox_xserver:
47
48       sandbox_xserver_t
49
50       Note: semanage permissive -a sandbox_xserver_t can be used to make  the
51       process type sandbox_xserver_t permissive. SELinux does not deny access
52       to permissive process types, but the AVC (SELinux denials) messages are
53       still generated.
54
55

BOOLEANS

57       SELinux  policy  is customizable based on least access required.  sand‐
58       box_xserver policy is extremely flexible and has several booleans  that
59       allow  you  to  manipulate  the policy and run sandbox_xserver with the
60       tightest access possible.
61
62
63
64       If you want to deny user domains applications to map a memory region as
65       both  executable  and  writable,  this  is dangerous and the executable
66       should be reported in bugzilla, you must turn on the deny_execmem bool‐
67       ean. Enabled by default.
68
69       setsebool -P deny_execmem 1
70
71
72
73       If  you  want to allow regular users direct dri device access, you must
74       turn  on  the  selinuxuser_direct_dri_enabled  boolean.   Disabled   by
75       default.
76
77       setsebool -P selinuxuser_direct_dri_enabled 1
78
79
80
81       If  you  want  to support fusefs home directories, you must turn on the
82       use_fusefs_home_dirs boolean. Disabled by default.
83
84       setsebool -P use_fusefs_home_dirs 1
85
86
87
88       If you want to support NFS home  directories,  you  must  turn  on  the
89       use_nfs_home_dirs boolean. Enabled by default.
90
91       setsebool -P use_nfs_home_dirs 1
92
93
94
95       If  you  want  to  support SAMBA home directories, you must turn on the
96       use_samba_home_dirs boolean. Disabled by default.
97
98       setsebool -P use_samba_home_dirs 1
99
100
101
102       If you want to allows clients to write to the X  server  shared  memory
103       segments, you must turn on the xserver_clients_write_xshm boolean. Dis‐
104       abled by default.
105
106       setsebool -P xserver_clients_write_xshm 1
107
108
109

MANAGED FILES

111       The SELinux process type sandbox_xserver_t  can  manage  files  labeled
112       with  the following file types.  The paths listed are the default paths
113       for these file types.  Note the processes UID still need  to  have  DAC
114       permissions.
115
116       sandbox_file_t
117
118
119       sandbox_xserver_tmpfs_t
120
121
122       security_t
123
124            /selinux
125
126       user_fonts_cache_t
127
128            /root/.fontconfig(/.*)?
129            /root/.fonts/auto(/.*)?
130            /root/.fonts.cache-.*
131            /root/.cache/fontconfig(/.*)?
132            /home/[^/]+/.fontconfig(/.*)?
133            /home/[^/]+/.fonts/auto(/.*)?
134            /home/[^/]+/.fonts.cache-.*
135            /home/[^/]+/.cache/fontconfig(/.*)?
136
137

COMMANDS

139       semanage  fcontext  can also be used to manipulate default file context
140       mappings.
141
142       semanage permissive can also be used to manipulate  whether  or  not  a
143       process type is permissive.
144
145       semanage  module can also be used to enable/disable/install/remove pol‐
146       icy modules.
147
148       semanage boolean can also be used to manipulate the booleans
149
150
151       system-config-selinux is a GUI tool available to customize SELinux pol‐
152       icy settings.
153
154

AUTHOR

156       This manual page was auto-generated using sepolicy manpage .
157
158