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f9aefc91f1
We wait for "basic.target" being reached in the user instance anyway before allowing the user's session to start, hence doing such a wait is unnecessary, since that would just mean we'd wait for "default.target" on top of "basic.target", but we shouldn#t need anything of that... Hence, let's simplify this, reduce explicit sync points.
69 lines
2.2 KiB
Bash
Executable File
69 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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set -ex
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set -o pipefail
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systemd-analyze log-level debug
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runas() {
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declare userid=$1
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shift
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su "$userid" -s /bin/sh -c 'XDG_RUNTIME_DIR=/run/user/$UID exec "$@"' -- sh "$@"
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}
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runas testuser systemd-run --user --unit=test-private-users \
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-p PrivateUsers=yes -P echo hello
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runas testuser systemd-run --user --unit=test-private-tmp-innerfile \
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-p PrivateUsers=yes -p PrivateTmp=yes \
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-P touch /tmp/innerfile.txt
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# File should not exist outside the job's tmp directory.
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test ! -e /tmp/innerfile.txt
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touch /tmp/outerfile.txt
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# File should not appear in unit's private tmp.
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runas testuser systemd-run --user --unit=test-private-tmp-outerfile \
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-p PrivateUsers=yes -p PrivateTmp=yes \
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-P test ! -e /tmp/outerfile.txt
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# Confirm that creating a file in home works
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runas testuser systemd-run --user --unit=test-unprotected-home \
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-P touch /home/testuser/works.txt
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test -e /home/testuser/works.txt
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# Confirm that creating a file in home is blocked under read-only
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runas testuser systemd-run --user --unit=test-protect-home-read-only \
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-p PrivateUsers=yes -p ProtectHome=read-only \
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-P bash -c '
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test -e /home/testuser/works.txt
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! touch /home/testuser/blocked.txt
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'
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test ! -e /home/testuser/blocked.txt
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# Check that tmpfs hides the whole directory
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runas testuser systemd-run --user --unit=test-protect-home-tmpfs \
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-p PrivateUsers=yes -p ProtectHome=tmpfs \
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-P test ! -e /home/testuser
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# Confirm that home, /root, and /run/user are inaccessible under "yes"
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runas testuser systemd-run --user --unit=test-protect-home-yes \
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-p PrivateUsers=yes -p ProtectHome=yes \
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-P bash -c '
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test "$(stat -c %a /home)" = "0"
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test "$(stat -c %a /root)" = "0"
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test "$(stat -c %a /run/user)" = "0"
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'
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# Confirm we cannot change groups because we only have one mapping in the user
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# namespace (no CAP_SETGID in the parent namespace to write the additional
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# mapping of the user supplied group and thus cannot change groups to an
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# unmapped group ID)
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! runas testuser systemd-run --user --unit=test-group-fail \
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-p PrivateUsers=yes -p Group=daemon \
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-P true
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systemd-analyze log-level info
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echo OK > /testok
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exit 0
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