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403 lines
8.0 KiB
403 lines
8.0 KiB
#!/bin/bash
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# test gdisk and sgdisk by creating a dd file
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# Copyright (C) 2011 Guillaume Delacour <gui@iroqwa.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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#
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# Requires: coreutils (mktemp, dd) and 64M of disk space in /tmp (temp dd disk)
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#
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# This script test gdisk commands through the following scenario:
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# - Initialize a new GPT table
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# - Create a single Linux partition
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# - Change name of partition
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# - Change type of partition
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# - Backup to file the GPT table
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# - Delete the single partition
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# - Restore from backup file the GPT table
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# - Wipe the GPT table
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# TODO
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# Try to generate a wrong GPT table to detect problems (test --verify)
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# Create MBR partition table with fdisk and migrate it with gdisk
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GDISK_BIN=./gdisk
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SGDISK_BIN=./sgdisk
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OPT_CLEAR="o"
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OPT_NEW="n"
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OPT_CHANGE_NAME="c"
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OPT_CHANGE_TYPE="t"
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OPT_BACKUP="b"
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OPT_DELETE="d"
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OPT_ZAP="z"
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# temp disk for testing gdisk
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TEMP_DISK=$(mktemp)
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# 64 MiB
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TEMP_DISK_SIZE=65536
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# the test partition to create
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TEST_PART_TYPE="8300"
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TEST_PART_DEFAULT_NAME="Linux filesystem"
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# newname for the partition
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TEST_PART_NEWNAME=$(tr -dc "[:alpha:]" < /dev/urandom | head -c 8)
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# and new type (swap for example)
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TEST_PART_NEWTYPE="8200"
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# GPT data backup to filename
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GPT_BACKUP_FILENAME=$(mktemp)
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# Pretty print string (Red if FAILED or green if SUCCESS)
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# $1: string to pretty print
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pretty_print() {
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if [ "$1" = "SUCCESS" ]
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then
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# green
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color="32"
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else
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# red
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color="31"
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fi
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printf "\033[0;${color}m**$1**\033[m $2\n"
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}
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# Verify that the partition exist and has the given type/name
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# $1: Partition type to verify (ex.: 8300)
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# $2: Partition name to verify (ex.: Linux filesystem)
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# $3: Text to print
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verify_part() {
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partition=$($GDISK_BIN -l $TEMP_DISK | tail -n 1)
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echo $partition | grep -q "$1[[:space:]]$2$"
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if [ $? -eq 0 ]
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then
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pretty_print "SUCCESS" "$3"
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else
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pretty_print "FAILED" "$3"
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exit 1
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fi
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}
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#####################################
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# Get GUID of disk
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#####################################
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get_diskguid() {
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DISK_GUID=$($GDISK_BIN -l $TEMP_DISK | grep "^Disk identifier (GUID):" | awk '{print $4}')
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return $DISK_GUID
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}
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#####################################
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# Create a new empty table
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#####################################
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create_table() {
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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$OPT_CLEAR
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Y
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w
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Y
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EOF
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ret=$?
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if [ $ret -ne 0 ]
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then
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pretty_print "FAILED" "gdisk return $ret when creating partition table"
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exit 1
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fi
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_CLEAR}
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ret=$?
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if [ $ret -ne 0 ]
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then
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pretty_print "FAILED" "sgdisk return $ret when creating partition table"
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exit 1
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fi
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;;
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esac
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# verify that the table is empty
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# only the columns should appear in the table
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verify_part "Code" "Name" "Create new empty GPT table"
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echo ""
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}
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#####################################
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# First create a new partition
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#####################################
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create_partition() {
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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$OPT_NEW
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1
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$TEST_PART_TYPE
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w
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Y
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EOF
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_NEW} 1 -${OPT_CHANGE_NAME} 1:"${TEST_PART_DEFAULT_NAME}" -${OPT_CHANGE_TYPE} 1:$TEST_PART_TYPE
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;;
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esac
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verify_part "$TEST_PART_TYPE" "$TEST_PART_DEFAULT_NAME" "Create new partition"
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echo ""
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}
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#####################################
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# Change name of partition
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#####################################
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change_partition_name() {
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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$OPT_CHANGE_NAME
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$TEST_PART_NEWNAME
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w
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Y
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EOF
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_CHANGE_NAME} 1:${TEST_PART_NEWNAME}
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;;
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esac
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verify_part "$TEST_PART_TYPE" "$TEST_PART_NEWNAME" "Change partition 1 name ($TEST_PART_DEFAULT_NAME -> $TEST_PART_NEWNAME)"
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echo ""
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}
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change_partition_type() {
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#####################################
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# Change type of partition
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#####################################
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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$OPT_CHANGE_TYPE
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$TEST_PART_NEWTYPE
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w
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Y
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EOF
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_CHANGE_TYPE} 1:${TEST_PART_NEWTYPE}
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;;
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esac
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verify_part "$TEST_PART_NEWTYPE" "$TEST_PART_NEWNAME" "Change partition 1 type ($TEST_PART_TYPE -> $TEST_PART_NEWTYPE)"
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echo ""
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}
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#####################################
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# Backup GPT data to file
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#####################################
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backup_table() {
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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$OPT_BACKUP
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$GPT_BACKUP_FILENAME
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q
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EOF
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echo ""
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_BACKUP} ${GPT_BACKUP_FILENAME}
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;;
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esac
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# if exist and not empty; we will test it after
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if [ -s $GPT_BACKUP_FILENAME ]
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then
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pretty_print "SUCCESS" "GPT data backuped sucessfully"
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else
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pretty_print "FAILED" "Unable to create GPT backup file !"
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exit 1
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fi
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}
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#####################################
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# Now, we can delete the partition
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#####################################
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delete_partition() {
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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$OPT_DELETE
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w
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Y
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EOF
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_DELETE} 1
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;;
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esac
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# verify that the table is empty (just one partition):
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# only the columns should appear in the table
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verify_part "Code" "Name" "Delete partition 1"
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echo ""
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}
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#####################################
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# Restore GPT table
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#####################################
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restore_table() {
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$GDISK_BIN $TEMP_DISK << EOF
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r
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r
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l
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$GPT_BACKUP_FILENAME
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w
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Y
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EOF
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verify_part "$TEST_PART_NEWTYPE" "$TEST_PART_NEWNAME" "Restore the GPT backup"
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echo ""
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}
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#####################################
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# Change UID of disk
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#####################################
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change_disk_uid() {
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# get UID of disk before changing it
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GUID=get_diskguid
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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x
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g
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R
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w
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Y
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EOF
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -U=R
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;;
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esac
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# get GUID after change
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NEW_DISK_GUID=get_diskguid
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# compare them
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if [ "$DISK_GUID" != "$NEW_DISK_GUID" ]
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then
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pretty_print "SUCCESS" "GUID of disk has been sucessfully changed"
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else
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pretty_print "FAILED" "GUID of disk is the same as the previous one"
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exit 1
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fi
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}
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#####################################
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# Wipe GPT table
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#####################################
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wipe_table() {
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case $1 in
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gdisk)
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$GDISK_BIN $TEMP_DISK << EOF
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x
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$OPT_ZAP
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Y
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Y
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EOF
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;;
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sgdisk)
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$SGDISK_BIN $TEMP_DISK -${OPT_ZAP}
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esac
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# verify that the table is empty (just one partition):
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# only the columns should appear in the table
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verify_part "Code" "Name" "Wipe GPT table"
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echo ""
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}
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#####################################
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# Test stdin EOF
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#####################################
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eof_stdin() {
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$SGDISK_BIN $TEMP_DISK << EOF
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^D
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EOF
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pretty_print "SUCCESS" "EOF successfully exit gdisk"
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}
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###################################
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# Main
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###################################
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# create a file to simulate a real device
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dd if=/dev/zero of=$TEMP_DISK bs=1024 count=$TEMP_DISK_SIZE > /dev/null 2>&1
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if [ -s $TEMP_DISK ]
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then
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pretty_print "SUCCESS" "Temp disk sucessfully created"
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else
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pretty_print "FAILED" "Unable to create temp disk !"
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exit 1
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fi
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# test gdisk and sgdisk
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for binary in gdisk sgdisk
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do
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echo ""
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printf "\033[0;34m**Testing $binary binary**\033[m\n"
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echo ""
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create_table "$binary"
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create_partition "$binary"
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change_partition_name "$binary"
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change_partition_type "$binary"
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backup_table "$binary"
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delete_partition "$binary"
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restore_table # only with gdisk
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change_disk_uid "$binary"
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wipe_table "$binary"
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eof_stdin # only with gdisk
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done
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# remove temp files
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rm -f $TEMP_DISK $GPT_BACKUP_FILENAME
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exit 0
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