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 bin_t, chrome_sandbox_nacl_exec_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 executeables 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 SELinux policy is customizable based on least access required.
62 chrome_sandbox_nacl policy is extremely flexible and has several bool‐
63 eans that allow you to manipulate the policy and run chrome_sand‐
64 box_nacl with the tightest access possible.
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68 If you want to allow all domains to execute in fips_mode, you must turn
69 on the fips_mode boolean. Enabled by default.
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71 setsebool -P fips_mode 1
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76 The SELinux process type chrome_sandbox_nacl_t can manage files labeled
77 with the following file types. The paths listed are the default paths
78 for these file types. Note the processes UID still need to have DAC
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81 chrome_sandbox_home_t
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83 /home/[^/]+/.cache/chromium(/.*)?
84 /home/[^/]+/.config/chromium(/.*)?
85 /home/[^/]+/.cache/google-chrome(/.*)?
86 /home/[^/]+/.cache/google-chrome-unstable(/.*)?
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88 chrome_sandbox_tmpfs_t
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93 SELinux requires files to have an extended attribute to define the file
94 type.
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96 You can see the context of a file using the -Z option to ls
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98 Policy governs the access confined processes have to these files.
99 SELinux chrome_sandbox_nacl policy is very flexible allowing users to
100 setup their chrome_sandbox_nacl processes in as secure a method as pos‐
101 sible.
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103 The following file types are defined for chrome_sandbox_nacl:
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107 chrome_sandbox_nacl_exec_t
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109 - Set files with the chrome_sandbox_nacl_exec_t type, if you want to
110 transition an executable to the chrome_sandbox_nacl_t domain.
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113 Paths:
114 /opt/google/chrome[^/]*/nacl_helper_bootstrap,
115 /opt/google/chrome/nacl_helper_bootstrap, /usr/lib/chromium-
116 browser/nacl_helper_bootstrap
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119 Note: File context can be temporarily modified with the chcon command.
120 If you want to permanently change the file context you need to use the
121 semanage fcontext command. This will modify the SELinux labeling data‐
122 base. You will need to use restorecon to apply the labels.
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126 semanage fcontext can also be used to manipulate default file context
127 mappings.
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129 semanage permissive can also be used to manipulate whether or not a
130 process type is permissive.
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132 semanage module can also be used to enable/disable/install/remove pol‐
133 icy modules.
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135 semanage boolean can also be used to manipulate the booleans
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138 system-config-selinux is a GUI tool available to customize SELinux pol‐
139 icy settings.
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143 This manual page was auto-generated using sepolicy manpage .
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147 selinux(8), chrome_sandbox_nacl(8), semanage(8), restorecon(8),
148 chcon(1), sepolicy(8), setsebool(8)
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152chrome_sandbox_nacl 19-05-30 chrome_sandbox_nacl_selinux(8)