test/units/testsuite-22.08.sh

   1 #! /bin/bash
   2 #
   3 # Verify tmpfiles can run in a root directory under a path prefix that contains
   4 # directories owned by unprivileged users, for example when a root file system
   5 # is mounted in a regular user's home directory.
   6 #
   7 # https://github.com/systemd/systemd/pull/11820
   8 #
   9
  10 set -e
  11
  12 rm -fr /tmp/root /tmp/user
  13 mkdir -p /tmp/root /tmp/user/root
  14 chown daemon:daemon /tmp/user
  15
  16 # Verify the command works as expected with no prefix or a root-owned prefix.
  17 echo 'd /tmp/root/test1' | systemd-tmpfiles --create -
  18 test -d /tmp/root/test1
  19 echo 'd /test2' | systemd-tmpfiles --root=/tmp/root --create -
  20 test -d /tmp/root/test2
  21
  22 # Verify the command fails to write to a root-owned subdirectory under an
  23 # unprivileged user's directory when it's not part of the prefix, as expected
  24 # by the unsafe_transition function.
  25 ! echo 'd /tmp/user/root/test' | systemd-tmpfiles --create -
  26 ! test -e /tmp/user/root/test
  27 ! echo 'd /user/root/test' | systemd-tmpfiles --root=/tmp --create -
  28 ! test -e /tmp/user/root/test
  29
  30 # Verify the above works when all user-owned directories are in the prefix.
  31 echo 'd /test' | systemd-tmpfiles --root=/tmp/user/root --create -
  32 test -d /tmp/user/root/test