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restrict bootstrap container user data #1496

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Apr 20, 2021
Merged

restrict bootstrap container user data #1496

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2 changes: 1 addition & 1 deletion packages/os/bootstrap-containers-tmpfiles.conf
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Original file line number Diff line number Diff line change
@@ -1,3 +1,3 @@
d /etc/bootstrap-containers 0750 root root -
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d /local/bootstrap-containers 0700 root root -
T /local/bootstrap-containers - - - - security.selinux=system_u:object_r:state_t:s0
T /local/bootstrap-containers - - - - security.selinux=system_u:object_r:secret_t:s0
2 changes: 2 additions & 0 deletions packages/selinux-policy/fs.cil
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Expand Up @@ -64,6 +64,8 @@
; Label local state directories.
(filecon "/local/host-containers" any secret)
(filecon "/local/host-containers/.*" any secret)
(filecon "/local/bootstrap-containers" any secret)
(filecon "/local/bootstrap-containers/.*" any secret)
(filecon "/var/lib/chrony" any measure)
(filecon "/var/lib/chrony/.*" any measure)
(filecon "/var/lib/systemd" any state)
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5 changes: 3 additions & 2 deletions packages/selinux-policy/rules.cil
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Expand Up @@ -101,9 +101,10 @@
; ... docker's image layers
(typetransition runtime_t local_t dir "overlay2" cache_t)

; If a system process creates a directory for host container state, it
; receives the "secret_t" label.
; If a system process creates a directory for host or bootstrap container
; state, it receives the "secret_t" label.
(typetransition system_t local_t dir "host-containers" secret_t)
(typetransition system_t local_t dir "bootstrap-containers" secret_t)

; The socket for the API server gets the "api_socket_t" label.
(typetransition api_t any_t sock_file "api.sock" api_socket_t)
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