1virt_bridgehelper_selinuSxE(L8i)nux Policy virt_bridgehevlipretr_bridgehelper_selinux(8)
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6 virt_bridgehelper_selinux - Security Enhanced Linux Policy for the
7 virt_bridgehelper processes
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10 Security-Enhanced Linux secures the virt_bridgehelper processes via
11 flexible mandatory access control.
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13 The virt_bridgehelper processes execute with the virt_bridgehelper_t
14 SELinux type. You can check if you have these processes running by exe‐
15 cuting the ps command with the -Z qualifier.
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17 For example:
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19 ps -eZ | grep virt_bridgehelper_t
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24 The virt_bridgehelper_t SELinux type can be entered via the
25 virt_bridgehelper_exec_t file type.
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27 The default entrypoint paths for the virt_bridgehelper_t domain are the
28 following:
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30 /usr/libexec/qemu-bridge-helper
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33 SELinux defines process types (domains) for each process running on the
34 system
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36 You can see the context of a process using the -Z option to ps
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38 Policy governs the access confined processes have to files. SELinux
39 virt_bridgehelper policy is very flexible allowing users to setup their
40 virt_bridgehelper processes in as secure a method as possible.
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42 The following process types are defined for virt_bridgehelper:
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44 virt_bridgehelper_t
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46 Note: semanage permissive -a virt_bridgehelper_t can be used to make
47 the process type virt_bridgehelper_t permissive. SELinux does not deny
48 access to permissive process types, but the AVC (SELinux denials) mes‐
49 sages are still generated.
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53 SELinux policy is customizable based on least access required.
54 virt_bridgehelper policy is extremely flexible and has several booleans
55 that allow you to manipulate the policy and run virt_bridgehelper with
56 the tightest access possible.
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60 If you want to allow all domains to use other domains file descriptors,
61 you must turn on the allow_domain_fd_use boolean. Enabled by default.
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63 setsebool -P allow_domain_fd_use 1
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67 If you want to allow sysadm to debug or ptrace all processes, you must
68 turn on the allow_ptrace boolean. Disabled by default.
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70 setsebool -P allow_ptrace 1
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74 If you want to allow all domains to have the kernel load modules, you
75 must turn on the domain_kernel_load_modules boolean. Disabled by
76 default.
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78 setsebool -P domain_kernel_load_modules 1
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82 If you want to allow all domains to execute in fips_mode, you must turn
83 on the fips_mode boolean. Enabled by default.
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85 setsebool -P fips_mode 1
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89 If you want to enable reading of urandom for all domains, you must turn
90 on the global_ssp boolean. Disabled by default.
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92 setsebool -P global_ssp 1
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97 The SELinux process type virt_bridgehelper_t can manage files labeled
98 with the following file types. The paths listed are the default paths
99 for these file types. Note the processes UID still need to have DAC
100 permissions.
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102 initrc_tmp_t
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105 mnt_t
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107 /mnt(/[^/]*)
108 /mnt(/[^/]*)?
109 /rhev(/[^/]*)?
110 /media(/[^/]*)
111 /media(/[^/]*)?
112 /etc/rhgb(/.*)?
113 /media/.hal-.*
114 /net
115 /afs
116 /rhev
117 /misc
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119 tmp_t
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121 /tmp
122 /usr/tmp
123 /var/tmp
124 /tmp-inst
125 /var/tmp-inst
126 /var/tmp/vi.recover
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130 SELinux requires files to have an extended attribute to define the file
131 type.
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133 You can see the context of a file using the -Z option to ls
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135 Policy governs the access confined processes have to these files.
136 SELinux virt_bridgehelper policy is very flexible allowing users to
137 setup their virt_bridgehelper processes in as secure a method as possi‐
138 ble.
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140 The following file types are defined for virt_bridgehelper:
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144 virt_bridgehelper_exec_t
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146 - Set files with the virt_bridgehelper_exec_t type, if you want to
147 transition an executable to the virt_bridgehelper_t domain.
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151 Note: File context can be temporarily modified with the chcon command.
152 If you want to permanently change the file context you need to use the
153 semanage fcontext command. This will modify the SELinux labeling data‐
154 base. You will need to use restorecon to apply the labels.
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158 semanage fcontext can also be used to manipulate default file context
159 mappings.
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161 semanage permissive can also be used to manipulate whether or not a
162 process type is permissive.
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164 semanage module can also be used to enable/disable/install/remove pol‐
165 icy modules.
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167 semanage boolean can also be used to manipulate the booleans
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170 system-config-selinux is a GUI tool available to customize SELinux pol‐
171 icy settings.
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175 This manual page was auto-generated using sepolicy manpage .
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179 selinux(8), virt_bridgehelper(8), semanage(8), restorecon(8), chcon(1)
180 , setsebool(8)
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184virt_bridgehelper 15-06-03 virt_bridgehelper_selinux(8)