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35 lines
1.3 KiB
Bash
Executable File
35 lines
1.3 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# Verify tmpfiles can run in a root directory under a path prefix that contains
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# directories owned by unprivileged users, for example when a root file system
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# is mounted in a regular user's home directory.
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#
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# https://github.com/systemd/systemd/pull/11820
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set -eux
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set -o pipefail
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rm -fr /tmp/root /tmp/user
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mkdir -p /tmp/root /tmp/user/root
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chown daemon:daemon /tmp/user
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# Verify the command works as expected with no prefix or a root-owned prefix.
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echo 'd /tmp/root/test1' | systemd-tmpfiles --create -
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test -d /tmp/root/test1
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echo 'd /test2' | systemd-tmpfiles --root=/tmp/root --create -
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test -d /tmp/root/test2
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# Verify the command fails to write to a root-owned subdirectory under an
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# unprivileged user's directory when it's not part of the prefix, as expected
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# by the unsafe_transition function.
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echo 'd /tmp/user/root/test' | systemd-tmpfiles --create - \
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&& { echo 'unexpected success'; exit 1; }
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test ! -e /tmp/user/root/test
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echo 'd /user/root/test' | systemd-tmpfiles --root=/tmp --create - \
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&& { echo 'unexpected success'; exit 1; }
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test ! -e /tmp/user/root/test
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# Verify the above works when all user-owned directories are in the prefix.
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echo 'd /test' | systemd-tmpfiles --root=/tmp/user/root --create -
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test -d /tmp/user/root/test
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