selftests/bpf: Indent ima_setup.sh with tabs.

The file was formatted with spaces instead of tabs and went unnoticed
as checkpatch.pl did not complain (probably because this is a shell
script). Re-indent it with tabs to be consistent with other scripts.
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20201203191437.666737-5-kpsingh@chromium.org

tools/testing/selftests/bpf/ima_setup.sh

@@ -10,90 +10,90 @@ TEST_BINARY="/bin/true"
 
 usage()
 {
-        echo "Usage: $0 <setup|cleanup|run> <existing_tmp_dir>"
-        exit 1
+	echo "Usage: $0 <setup|cleanup|run> <existing_tmp_dir>"
+	exit 1
 }
 
 ensure_mount_securityfs()
 {
-        local securityfs_dir=$(grep "securityfs" /proc/mounts | awk '{print $2}')
+	local securityfs_dir=$(grep "securityfs" /proc/mounts | awk '{print $2}')
 
-        if [ -z "${securityfs_dir}" ]; then
-                securityfs_dir=/sys/kernel/security
-                mount -t securityfs security "${securityfs_dir}"
-        fi
+	if [ -z "${securityfs_dir}" ]; then
+		securityfs_dir=/sys/kernel/security
+		mount -t securityfs security "${securityfs_dir}"
+	fi
 
-        if [ ! -d "${securityfs_dir}" ]; then
-                echo "${securityfs_dir}: securityfs is not mounted" && exit 1
-        fi
+	if [ ! -d "${securityfs_dir}" ]; then
+		echo "${securityfs_dir}: securityfs is not mounted" && exit 1
+	fi
 }
 
 setup()
 {
-        local tmp_dir="$1"
-        local mount_img="${tmp_dir}/test.img"
-        local mount_dir="${tmp_dir}/mnt"
-        local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
-        mkdir -p ${mount_dir}
+	local tmp_dir="$1"
+	local mount_img="${tmp_dir}/test.img"
+	local mount_dir="${tmp_dir}/mnt"
+	local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
+	mkdir -p ${mount_dir}
 
-        dd if=/dev/zero of="${mount_img}" bs=1M count=10
+	dd if=/dev/zero of="${mount_img}" bs=1M count=10
 
-        losetup -f "${mount_img}"
-        local loop_device=$(losetup -a | grep ${mount_img:?} | cut -d ":" -f1)
+	losetup -f "${mount_img}"
+	local loop_device=$(losetup -a | grep ${mount_img:?} | cut -d ":" -f1)
 
-        mkfs.ext2 "${loop_device:?}"
-        mount "${loop_device}" "${mount_dir}"
+	mkfs.ext2 "${loop_device:?}"
+	mount "${loop_device}" "${mount_dir}"
 
-        cp "${TEST_BINARY}" "${mount_dir}"
-        local mount_uuid="$(blkid ${loop_device} | sed 's/.*UUID="\([^"]*\)".*/\1/')"
+	cp "${TEST_BINARY}" "${mount_dir}"
+	local mount_uuid="$(blkid ${loop_device} | sed 's/.*UUID="\([^"]*\)".*/\1/')"
 
-        ensure_mount_securityfs
-        echo "measure func=BPRM_CHECK fsuuid=${mount_uuid}" > ${IMA_POLICY_FILE}
+	ensure_mount_securityfs
+	echo "measure func=BPRM_CHECK fsuuid=${mount_uuid}" > ${IMA_POLICY_FILE}
 }
 
 cleanup() {
-        local tmp_dir="$1"
-        local mount_img="${tmp_dir}/test.img"
-        local mount_dir="${tmp_dir}/mnt"
+	local tmp_dir="$1"
+	local mount_img="${tmp_dir}/test.img"
+	local mount_dir="${tmp_dir}/mnt"
 
-        local loop_devices=$(losetup -a | grep ${mount_img:?} | cut -d ":" -f1)
+	local loop_devices=$(losetup -a | grep ${mount_img:?} | cut -d ":" -f1)
 
-        for loop_dev in "${loop_devices}"; do
-                losetup -d $loop_dev
-        done
+	for loop_dev in "${loop_devices}"; do
+		losetup -d $loop_dev
+	done
 
-        umount ${mount_dir}
-        rm -rf ${tmp_dir}
+	umount ${mount_dir}
+	rm -rf ${tmp_dir}
 }
 
 run()
 {
-        local tmp_dir="$1"
-        local mount_dir="${tmp_dir}/mnt"
-        local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
+	local tmp_dir="$1"
+	local mount_dir="${tmp_dir}/mnt"
+	local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
 
-        exec "${copied_bin_path}"
+	exec "${copied_bin_path}"
 }
 
 main()
 {
-        [[ $# -ne 2 ]] && usage
-
-        local action="$1"
-        local tmp_dir="$2"
-
-        [[ ! -d "${tmp_dir}" ]] && echo "Directory ${tmp_dir} doesn't exist" && exit 1
-
-        if [[ "${action}" == "setup" ]]; then
-                setup "${tmp_dir}"
-        elif [[ "${action}" == "cleanup" ]]; then
-                cleanup "${tmp_dir}"
-        elif [[ "${action}" == "run" ]]; then
-                run "${tmp_dir}"
-        else
-                echo "Unknown action: ${action}"
-                exit 1
-        fi
+	[[ $# -ne 2 ]] && usage
+
+	local action="$1"
+	local tmp_dir="$2"
+
+	[[ ! -d "${tmp_dir}" ]] && echo "Directory ${tmp_dir} doesn't exist" && exit 1
+
+	if [[ "${action}" == "setup" ]]; then
+		setup "${tmp_dir}"
+	elif [[ "${action}" == "cleanup" ]]; then
+		cleanup "${tmp_dir}"
+	elif [[ "${action}" == "run" ]]; then
+		run "${tmp_dir}"
+	else
+		echo "Unknown action: ${action}"
+		exit 1
+	fi
 }
 
 main "$@"