1chrome_sandbox_nacl_selSiEnLuixn(u8x)Policy chrome_sandbcohxr_onmaec_lsandbox_nacl_selinux(8)
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6 chrome_sandbox_nacl_selinux - Security Enhanced Linux Policy for the
7 chrome_sandbox_nacl processes
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10 Security-Enhanced Linux secures the chrome_sandbox_nacl processes via
11 flexible mandatory access control.
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13 The chrome_sandbox_nacl processes execute with the chrome_sand‐
14 box_nacl_t SELinux type. You can check if you have these processes run‐
15 ning by executing the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep chrome_sandbox_nacl_t
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24 The chrome_sandbox_nacl_t SELinux type can be entered via the usr_t,
25 chrome_sandbox_nacl_exec_t, bin_t file types.
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27 The default entrypoint paths for the chrome_sandbox_nacl_t domain are
28 the following:
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30 All executables with the default executable label, usually stored in
31 /usr/bin and /usr/sbin. /opt/.*, /usr/.*, /emul/.*, /export(/.*)?,
32 /ostree(/.*)?, /usr/doc(/.*)?/lib(/.*)?, /usr/inclu.e(/.*)?,
33 /usr/share/rpm(/.*)?, /usr/share/doc(/.*)?/README.*, /usr/lib/mod‐
34 ules(/.*)/vmlinuz, /usr/lib/modules(/.*)/initramfs.img, /usr/lib/sysim‐
35 age(/.*)?, /usr/lib/ostree-boot(/.*)?, /opt, /usr, /emul,
36 /opt/google/chrome[^/]*/nacl_helper_bootstrap,
37 /opt/google/chrome/nacl_helper_bootstrap, /usr/lib/chromium-
38 browser/nacl_helper_bootstrap
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41 SELinux defines process types (domains) for each process running on the
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44 You can see the context of a process using the -Z option to ps
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46 Policy governs the access confined processes have to files. SELinux
47 chrome_sandbox_nacl policy is very flexible allowing users to setup
48 their chrome_sandbox_nacl processes in as secure a method as possible.
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50 The following process types are defined for chrome_sandbox_nacl:
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52 chrome_sandbox_nacl_t
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54 Note: semanage permissive -a chrome_sandbox_nacl_t can be used to make
55 the process type chrome_sandbox_nacl_t permissive. SELinux does not
56 deny access to permissive process types, but the AVC (SELinux denials)
57 messages are still generated.
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61 The SELinux process type chrome_sandbox_nacl_t can manage files labeled
62 with the following file types. The paths listed are the default paths
63 for these file types. Note the processes UID still need to have DAC
64 permissions.
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66 chrome_sandbox_home_t
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68 /home/[^/]+/.cache/chromium(/.*)?
69 /home/[^/]+/.config/chromium(/.*)?
70 /home/[^/]+/.cache/google-chrome(/.*)?
71 /home/[^/]+/.cache/google-chrome-unstable(/.*)?
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73 chrome_sandbox_tmpfs_t
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78 SELinux requires files to have an extended attribute to define the file
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81 You can see the context of a file using the -Z option to ls
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83 Policy governs the access confined processes have to these files.
84 SELinux chrome_sandbox_nacl policy is very flexible allowing users to
85 setup their chrome_sandbox_nacl processes in as secure a method as pos‐
86 sible.
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88 STANDARD FILE CONTEXT
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90 SELinux defines the file context types for the chrome_sandbox_nacl, if
91 you wanted to store files with these types in a different paths, you
92 need to execute the semanage command to specify alternate labeling and
93 then use restorecon to put the labels on disk.
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95 semanage fcontext -a -t chrome_sandbox_nacl_exec_t '/srv/chrome_sand‐
96 box_nacl/content(/.*)?'
97 restorecon -R -v /srv/mychrome_sandbox_nacl_content
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99 Note: SELinux often uses regular expressions to specify labels that
100 match multiple files.
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102 The following file types are defined for chrome_sandbox_nacl:
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106 chrome_sandbox_nacl_exec_t
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108 - Set files with the chrome_sandbox_nacl_exec_t type, if you want to
109 transition an executable to the chrome_sandbox_nacl_t domain.
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112 Paths:
113 /opt/google/chrome[^/]*/nacl_helper_bootstrap,
114 /opt/google/chrome/nacl_helper_bootstrap, /usr/lib/chromium-
115 browser/nacl_helper_bootstrap
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118 Note: File context can be temporarily modified with the chcon command.
119 If you want to permanently change the file context you need to use the
120 semanage fcontext command. This will modify the SELinux labeling data‐
121 base. You will need to use restorecon to apply the labels.
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125 semanage fcontext can also be used to manipulate default file context
126 mappings.
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128 semanage permissive can also be used to manipulate whether or not a
129 process type is permissive.
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131 semanage module can also be used to enable/disable/install/remove pol‐
132 icy modules.
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135 system-config-selinux is a GUI tool available to customize SELinux pol‐
136 icy settings.
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140 This manual page was auto-generated using sepolicy manpage .
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144 selinux(8), chrome_sandbox_nacl(8), semanage(8), restorecon(8),
145 chcon(1), sepolicy(8)
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149chrome_sandbox_nacl 23-10-20 chrome_sandbox_nacl_selinux(8)