rpm-ostree/tests/vmcheck/test-misc-1.sh
Colin Walters e41a8ab26f Add support for wrapping binaries (rpm, dracut, grubby)
We need to be friendlier to people who are transitioning from
"traditional" yum managed systems.  This patchset starts to lay
out the groundwork for supporting "intercepting" binaries that
are in the tree.

For backwards compatibility, this feature is disabled by default,
to enable it, one can add `cliwrap: true` to the manifest.

To start with for example, we wrap `/usr/bin/rpm` and cause it
to drop privileges.  This way it can't corrupt anything; we're
not just relying on the read-only bind mount.  For example nothing
will accidentally get written to `/var/lib/rpm`.

Now a tricky thing with this one is we *do* want it to write if
we're in an unlocked state.

There are various other examples of binaries we want to intercept,
among them:

 - `grubby` -> `rpm-ostree kargs`
 - `dracut` -> `rpm-ostree initramfs`
 - `yum` -> well...we'll talk about that later
2020-04-15 16:22:57 +02:00

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#!/bin/bash
#
# Copyright (C) 2017,2018 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
set -euo pipefail
. ${commondir}/libtest.sh
. ${commondir}/libvm.sh
set -x
# Miscellaneous basic tests; most are nondestructive
# https://github.com/projectatomic/rpm-ostree/issues/1301
# FIXME: temporarily disabled as it really wants to start
# from a fresh instance and we don't currently guarantee that.
#
# But we'll rework the test suite to do that soon like
# https://github.com/ostreedev/ostree/pull/1462
# vm_cmd 'mv /etc/ostree/remotes.d{,.orig}'
# vm_cmd systemctl restart rpm-ostreed
# vm_cmd rpm-ostree status > status.txt
# assert_file_has_content status.txt 'Remote.*not found'
# vm_cmd 'mv /etc/ostree/remotes.d{.orig,}'
# vm_rpmostree reload
# echo "ok remote not found"
# make sure that package-related entries are always present,
# even when they're empty
vm_assert_status_jq \
'.deployments[0]["packages"]' \
'.deployments[0]["requested-packages"]' \
'.deployments[0]["requested-local-packages"]' \
'.deployments[0]["base-removals"]' \
'.deployments[0]["requested-base-removals"]' \
'.deployments[0]["layered-commit-meta"]|not'
echo "ok empty pkg arrays, and commit meta correct in status json"
vm_rpmostree status --jsonpath '$.deployments[0].booted' > jsonpath.txt
assert_file_has_content_literal jsonpath.txt 'true'
echo "ok jsonpath"
vm_rpmostree --version > version.yaml
python3 -c 'import yaml; v=yaml.safe_load(open("version.yaml")); assert("Version" in v["rpm-ostree"])'
echo "ok yaml version"
# Ensure we return an error when passing a wrong option.
vm_rpmostree --help | awk '/^$/ {in_commands=0} {if(in_commands==1){print $0}} /^Builtin Commands:/ {in_commands=1}' > commands
while read command; do
if vm_rpmostree $command --n0t-3xisting-0ption &>/dev/null; then
assert_not_reached "command $command --n0t-3xisting-0ption was successful"
fi
done < commands
echo "ok error on unknown command options"
if vm_rpmostree nosuchcommand --nosuchoption 2>err.txt; then
assert_not_reached "Expected an error for nosuchcommand"
fi
assert_file_has_content err.txt 'Unknown.*command'
echo "ok error on unknown command"
# Make sure we can't do various operations as non-root
vm_build_rpm foo
if vm_cmd_as core rpm-ostree pkg-add foo &> err.txt; then
assert_not_reached "Was able to install a package as non-root!"
fi
assert_file_has_content err.txt 'PkgChange not allowed for user'
if vm_cmd_as core rpm-ostree reload &> err.txt; then
assert_not_reached "Was able to reload as non-root!"
fi
assert_file_has_content err.txt 'ReloadConfig not allowed for user'
echo "ok auth"
wrapdir="/usr/libexec/rpm-ostree/wrapped"
if [ -d "${wrapdir}" ]; then
# Test wrapped functions for rpm
rpm --version
rpm -qa > /dev/null
rpm --verify >out.txt
assert_file_has_content out.txt "rpm --verify is not necessary for ostree-based systems"
rm -f out.txt
if rpm -e bash 2>out.txt; then
fatal "rpm -e worked"
fi
assert_file_has_content out.txt 'Dropping privileges as `rpm` was executed with not "known safe" arguments'
if dracut --blah 2>out.txt; then
fatal "dracut worked"
fi
assert_file_has_content out.txt 'This system is rpm-ostree based'
rm -f out.txt
else
echo "Missing ${wrapdir}; cliwrap not enabled"
fi
# Test coreos-rootfs
vm_shell_inline > coreos-rootfs.txt << EOF
mkdir /var/tmp/coreos-rootfs
rpm-ostree coreos-rootfs seal /var/tmp/coreos-rootfs
lsattr -d /var/tmp/coreos-rootfs
rpm-ostree coreos-rootfs seal /var/tmp/coreos-rootfs
EOF
assert_file_has_content coreos-rootfs.txt '-*i-* /var/tmp/coreos-rootfs'
# Reload as root https://github.com/projectatomic/rpm-ostree/issues/976
vm_cmd rpm-ostree reload
echo "ok reload"
stateroot=$(vm_get_booted_stateroot)
ospath=/org/projectatomic/rpmostree1/${stateroot//-/_}
# related: https://github.com/coreos/fedora-coreos-config/issues/194
vm_cmd env LANG=C.UTF-8 gdbus call \
--system --dest org.projectatomic.rpmostree1 \
--object-path /org/projectatomic/rpmostree1/fedora_coreos \
--method org.projectatomic.rpmostree1.OSExperimental.Moo true > moo.txt
assert_file_has_content moo.txt '🐄'
echo "ok moo"
vm_rpmostree usroverlay
vm_cmd test -w /usr/bin
echo "ok usroverlay"
vm_shell_inline_sysroot_rw <<EOF
rpm-ostree cleanup -p
originpath=\$(ostree admin --print-current-dir).origin
cp -a \${originpath}{,.orig}
echo "unconfigured-state=Access to TestOS requires ONE BILLION DOLLARS" >> \${originpath}
rpm-ostree reload
rpm-ostree status
if rpm-ostree upgrade 2>err.txt; then
echo "Upgraded from unconfigured-state"
exit 1
fi
grep -qFe 'ONE BILLION DOLLARS' err.txt
mv \${originpath}{.orig,}
rpm-ostree reload
EOF
echo "ok unconfigured status"