treewide: use new procd sysupgrade $UPGRADE_BACKUP variable

It's a variable set by procd that should replace hardcoded
/tmp/sysupgrade.tgz.

This change requires the most recent procd with the commit 0f3c136
("sysupgrade: set UPGRADE_BACKUP env variable").

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 641f6b6c26cb9ab5e1198810015e5f4b2b5b34ad)

package/base-files/files/lib/upgrade/common.sh

@@ -221,7 +221,7 @@ indicate_upgrade() {
 default_do_upgrade() {
 	sync
 	if [ "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ]; then
-		get_image "$1" "$2" | mtd $MTD_ARGS $MTD_CONFIG_ARGS -j "$CONF_TAR" write - "${PART_NAME:-image}"
+		get_image "$1" "$2" | mtd $MTD_ARGS $MTD_CONFIG_ARGS -j "$UPGRADE_BACKUP" write - "${PART_NAME:-image}"
 	else
 		get_image "$1" "$2" | mtd $MTD_ARGS write - "${PART_NAME:-image}"
 	fi

package/base-files/files/lib/upgrade/stage2

@@ -9,7 +9,6 @@ COMMAND="$2"
 export INTERACTIVE=0
 export VERBOSE=1
 export CONFFILES=/tmp/sysupgrade.conffiles
-export CONF_TAR=/tmp/sysupgrade.tgz
 
 RAMFS_COPY_BIN=		# extra programs for temporary ramfs root
 RAMFS_COPY_DATA=	# extra data files

target/linux/ar71xx/base-files/lib/upgrade/dir825.sh

@@ -75,7 +75,7 @@ dir825b_do_upgrade_combined() {
 
 	if [ -n "$fw_mtd" ] &&  [ ${fw_blocks:-0} -gt 0 ]; then
 		local append=""
-		[ -f "$CONF_TAR" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+		[ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
 
 		sync
 		dd if="$fw_file" bs=64k skip=1 count=$fw_blocks 2>/dev/null | \

target/linux/ar71xx/base-files/lib/upgrade/openmesh.sh

@@ -159,7 +159,7 @@ platform_do_upgrade_openmesh()
 	local cfg_size= kernel_size= rootfs_size=
 	local append=""
 
-	[ -f "$CONF_TAR" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+	[ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
 
 	cfg_size=$(dd if="$img_path" bs=2 skip=35 count=4 2>/dev/null)
 	kernel_size=$(dd if="$img_path" bs=2 skip=71 count=4 2>/dev/null)

target/linux/ar71xx/base-files/lib/upgrade/platform.sh

@@ -65,7 +65,7 @@ platform_do_upgrade_combined() {
 	then
 		local rootfspart=$(platform_find_rootfspart "$partitions" "$kernelpart")
 		local append=""
-		[ -f "$CONF_TAR" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+		[ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
 
 		if [ "$PLATFORM_DO_UPGRADE_COMBINED_SEPARATE_MTD" -ne 1 ]; then
 		    ( dd if="$1" bs=$CI_BLKSZ skip=1 count=$kern_blocks 2>/dev/null; \
@@ -164,7 +164,7 @@ platform_do_upgrade_compex() {
 
 	if [ -n "$fw_mtd" ] &&  [ ${fw_blocks:-0} -gt 0 ]; then
 		local append=""
-		[ -f "$CONF_TAR" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+		[ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUPs"
 
 		sync
 		dd if="$fw_file" bs=64k skip=1 count=$fw_blocks 2>/dev/null | \

target/linux/ath79/base-files/lib/upgrade/platform.sh

@@ -14,7 +14,7 @@ redboot_fis_do_upgrade() {
 	if [ "$magic" = "4349" ]; then
 		local kern_length=0x$(dd if="$sysup_file" bs=2 skip=1 count=4 2>/dev/null)
 
-		[ -f "$CONF_TAR" -a "$UPGRADE_OPT_UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+		[ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
 		dd if="$sysup_file" bs=64k skip=1 2>/dev/null | \
 			mtd -r $append -F$kern_part:$kern_length:0x80060000,rootfs write - $kern_part:rootfs
 
@@ -22,7 +22,7 @@ redboot_fis_do_upgrade() {
 		local board_dir=$(tar tf $sysup_file | grep -m 1 '^sysupgrade-.*/$')
 		local kern_length=$(tar xf $sysup_file ${board_dir}kernel -O | wc -c)
 
-		[ -f "$CONF_TAR" -a "$UPGRADE_OPT_UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+		[ -f "$UPGRADE_BACKUP" -a "$UPGRADE_OPT_UPGRADE_OPT_SAVE_CONFIG" -eq 1 ] && append="-j $UPGRADE_BACKUP"
 		tar xf $sysup_file ${board_dir}kernel ${board_dir}root -O | \
 			mtd -r $append -F$kern_part:$kern_length:0x80060000,rootfs write - $kern_part:rootfs
 

target/linux/sunxi/base-files/lib/upgrade/platform.sh

@@ -30,7 +30,7 @@ platform_copy_config() {
 
 	if export_partdevice partdev 1; then
 		mount -t vfat -o rw,noatime "/dev/$partdev" /mnt
-		cp -af "$CONF_TAR" "/mnt/$BACKUP_FILE"
+		cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE"
 		umount /mnt
 	fi
 }

target/linux/x86/base-files/lib/upgrade/platform.sh

@@ -39,7 +39,7 @@ platform_copy_config() {
 
 	if export_partdevice partdev 1; then
 		mount -t ext4 -o rw,noatime "/dev/$partdev" /mnt
-		cp -af "$CONF_TAR" "/mnt/$BACKUP_FILE"
+		cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE"
 		umount /mnt
 	fi
 }