zfs/tests/zfs-tests/tests/functional/user_namespace/user_namespace_001.ksh

#!/bin/ksh -p
#
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. $STF_SUITE/tests/functional/user_namespace/user_namespace_common.kshlib

#
#
# DESCRIPTION:
#       Regression test for secpolicy_vnode_setids_setgids
#
#
# STRATEGY:
#       1. Create files with various owners.
#       2. Try to set setgid bit.
#

verify_runnable "both"

# rroot: real root,
# uroot: root within user namespace
# uother: other user within user namespace
set -A files rroot_rroot uroot_uroot uroot_other uother_uroot uother_uother

function cleanup
{
	for i in ${files[*]}; do
		log_must rm -f $TESTDIR/$i
	done
}

log_onexit cleanup

log_assert "Check root in user namespaces"

TOUCH=$(readlink -e $(which touch))
CHMOD=$(readlink -e $(which chmod))

for i in ${files[*]}; do
	log_must $TOUCH $TESTDIR/$i
	log_must $CHMOD 0644 $TESTDIR/$i
done

log_must chown 0:0 $TESTDIR/rroot_rroot
log_must chown $ROOT_UID:$ROOT_UID $TESTDIR/uroot_uroot
log_must chown $ROOT_UID:$OTHER_UID $TESTDIR/uroot_other
log_must chown $OTHER_UID:$ROOT_UID $TESTDIR/uother_uroot
log_must chown $OTHER_UID:$OTHER_UID $TESTDIR/uother_uother

log_mustnot user_ns_exec $CHMOD 02755 $TESTDIR/rroot_rroot
log_mustnot test -g $TESTDIR/rroot_rroot

log_must user_ns_exec $CHMOD 02755 $TESTDIR/uroot_uroot
log_must test -g $TESTDIR/uroot_uroot

log_must user_ns_exec $CHMOD 02755 $TESTDIR/uroot_other
log_must test -g $TESTDIR/uroot_other

log_must user_ns_exec $CHMOD 02755 $TESTDIR/uother_uroot
log_must test -g $TESTDIR/uother_uroot

log_must user_ns_exec $CHMOD 02755 $TESTDIR/uother_uother
log_must test -g $TESTDIR/uother_uother

log_mustnot user_ns_exec $TOUCH $TESTDIR/rroot_rroot
log_must $CHMOD 0666 $TESTDIR/rroot_rroot
for i in ${files[*]}; do
	log_must user_ns_exec $TOUCH $TESTDIR/$i
done

log_pass "Check root in user namespaces"