From c9f30c4512fa6409eaf829c8448c8e086271c94f Mon Sep 17 00:00:00 2001
From: intrigeri <intrigeri@boum.org>
Date: Wed, 27 Aug 2014 03:05:12 +0000
Subject: [PATCH] systemd unit file: only allow tor to write to /var/lib/tor
 and /var/log/tor (#12751).

The rest of the filesystem is accessible for reading only. Still, quoting
systemd.exec(5):

  Note that restricting access with these options does not extend to submounts
  of a directory that are created later on.
---
 contrib/dist/tor.service.in | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/contrib/dist/tor.service.in b/contrib/dist/tor.service.in
index 2fe51c75d9..8c70ccc6e3 100644
--- a/contrib/dist/tor.service.in
+++ b/contrib/dist/tor.service.in
@@ -19,6 +19,9 @@ PrivateTmp = yes
 DeviceAllow = /dev/null rw
 DeviceAllow = /dev/urandom r
 InaccessibleDirectories = /home
+ReadOnlyDirectories = /
+ReadWriteDirectories = @LOCALSTATEDIR@/lib/tor
+ReadWriteDirectories = @LOCALSTATEDIR@/log/tor
 
 [Install]
 WantedBy = multi-user.target