sysmocom-backup: Create two shell scripts for backup/restore

Create shell scripts that backup and restore configuration files
used by the sysmocom products.

recipes-apps/sysmocom-backup/files/sysmocom-backup

@@ -0,0 +1,56 @@
+#!/bin/sh
+
+
+# Make sure to look at sysmocom-restore to check if the file would
+# be restored right. Currently only some dirs get restored.
+FILES="\
+	etc/openvpn
+	etc/osmocom/osmo-bsc-mgcp.cfg \
+	etc/osmocom/osmo-bsc.cfg \
+	etc/osmocom/osmo-bts.cfg \
+	etc/osmocom/osmo-nitb.cfg \
+	etc/osmocom/osmo-pcu.cfg \
+	etc/osmocom/osmo-sgsn.cfg \
+	etc/ggsn.conf \
+	etc/default/osmo-nitb \
+	etc/default/osmo-bsc \
+	etc/default/osmocom-tcpdump \
+	var/lib/osmocom/hlr.sqlite3 \
+	"
+DATE=`date +%Y%m%d`
+
+
+do_backup_files() {
+	BACKUP_FILE="/home/root/sysmocom-backup_$DATE.tar"
+
+	# 0. Sanity checking
+	if [ -e $BACKUP_FILE ]; then
+		echo "The backup file '$BACKUP_FILE' already exists. Exiting!"
+		exit 1
+	fi
+
+	# 1. Create an empty archive..
+	tar -cf $BACKUP_FILE --files-from=/dev/null
+
+	# 2. Add all the files... we need
+	for file in $FILES;
+	do
+		if [ -e "/$file" ]; then
+			tar -rf $BACKUP_FILE --transform='s,^,content/,' -C / $file
+		fi
+	done
+
+	# 3. Generate more information
+	NAME="/tmp/backup.$RANDOM"
+	mkdir $NAME
+	opkg list_installed > $NAME/installed_packages
+	/sbin/ifconfig | grep HWaddr | cut -d ' ' -f 11 > $NAME/mac_addr
+
+	# 4. Add the more information
+	tar -rf $BACKUP_FILE --transform='s,^,info/,' -C $NAME installed_packages mac_addr
+
+	# 5.
+	echo "The backup was stored to $BACKUP_FILE"
+}
+
+do_backup_files

recipes-apps/sysmocom-backup/files/sysmocom-restore

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+do_extract() {
+	# List the files and check if grep hits something
+	SEARCH=`tar -tvf $1 | grep $2`
+	RES=$?
+	if [ $RES = 0 ]; then
+		tar -C / -xvf $1 --strip=1 $2
+	else
+		echo "Directory '$2' is not in backup '$1'."
+	fi
+}
+
+do_restore_files() {
+	BACKUP_FILE=$1
+	if [ ! -e "$BACKUP_FILE" ] ; then
+		echo "The backup file '$BACKUP_FILE' does not exist. Exiting!"
+		exit 1
+	fi
+
+	echo "Going to extract files from the backup '$BACKUP_FILE'"
+	do_extract $BACKUP_FILE content/etc
+	do_extract $BACKUP_FILE content/var/lib/osmocom
+}
+
+do_restore_files $1

recipes-apps/sysmocom-backup/sysmocom-backup_1.0.bb

@@ -0,0 +1,13 @@
+DESCRIPTION = "sysmocom config backup and restore scripts"
+LICENSE = "GPLv3+"
+LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58"
+PR = "r3"
+
+SRC_URI = "file://sysmocom-backup file://sysmocom-restore"
+RDEPENDS_${PN} = "tar"
+
+do_install() {
+	install -d ${D}${sbindir}
+	install -m 0755 ${WORKDIR}/sysmocom-backup  ${D}${sbindir}/
+	install -m 0755 ${WORKDIR}/sysmocom-restore ${D}${sbindir}/
+}