From 30f61a34b4cfd2c676fea4a919e089d6a77254e9 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sat, 22 Apr 2017 00:54:50 +0200
Subject: base-files: always use staged sysupgrade

Support for the -d and -p options is dropped; it may be added again at some
point by adding these flags to the ubus sysupgrade call.

A downside of this is that we get a lot less information about the progress
of the upgrade: as soon as the actual upgrade starts, all shell sessions
are killed to allow unmounting the root filesystem.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
---
 package/base-files/files/lib/upgrade/nand.sh | 60 +++++-----------------------
 1 file changed, 10 insertions(+), 50 deletions(-)

(limited to 'package/base-files/files/lib/upgrade/nand.sh')

diff --git a/package/base-files/files/lib/upgrade/nand.sh b/package/base-files/files/lib/upgrade/nand.sh
index 9c831df3b4..894964e178 100644
--- a/package/base-files/files/lib/upgrade/nand.sh
+++ b/package/base-files/files/lib/upgrade/nand.sh
@@ -283,7 +283,16 @@ nand_upgrade_tar() {
 }
 
 # Recognize type of passed file and start the upgrade process
-nand_do_upgrade_stage2() {
+nand_do_upgrade() {
+	if [ -n "$IS_PRE_UPGRADE" ]; then
+		# Previously, nand_do_upgrade was called from the platform_pre_upgrade
+		# hook; this piece of code handles scripts that haven't been
+		# updated. All scripts should gradually move to call nand_do_upgrade
+		# from platform_do_upgrade instead.
+		export do_upgrade=nand_do_upgrade
+		return
+	fi
+
 	local file_type=$(identify $1)
 
 	if type 'platform_nand_pre_upgrade' >/dev/null 2>/dev/null; then
@@ -299,45 +308,6 @@ nand_do_upgrade_stage2() {
 	esac
 }
 
-nand_upgrade_stage2() {
-	[ $1 = "nand" ] && {
-		[ -f "$2" ] && {
-			touch /tmp/sysupgrade
-
-			killall -9 telnetd
-			killall -9 dropbear
-			killall -9 ash
-
-			kill_remaining TERM
-			sleep 3
-			kill_remaining KILL
-
-			sleep 1
-
-			if [ -n "$(rootfs_type)" ]; then
-				v "Switching to ramdisk..."
-				run_ramfs ". /lib/functions.sh; include /lib/upgrade; nand_do_upgrade_stage2 $2"
-			else
-				nand_do_upgrade_stage2 $2
-			fi
-			return 0
-		}
-		echo "Nand upgrade failed"
-		exit 1
-	}
-}
-
-nand_upgrade_stage1() {
-	[ -f /tmp/sysupgrade-nand-path ] && {
-		path="$(cat /tmp/sysupgrade-nand-path)"
-		[ "$SAVE_CONFIG" != 1 -a -f "$CONF_TAR" ] &&
-			rm $CONF_TAR
-
-		ubus call system nandupgrade "{\"prefix\": \"$RAM_ROOT\", \"path\": \"$path\" }"
-		exit 0
-	}
-}
-
 # Check if passed file is a valid one for NAND sysupgrade. Currently it accepts
 # 3 types of files:
 # 1) UBI - should contain an ubinized image, header is checked for the proper
@@ -364,13 +334,3 @@ nand_do_platform_check() {
 
 	return 0
 }
-
-# Start NAND upgrade process
-#
-# $(1): file to be used for upgrade
-nand_do_upgrade() {
-	echo -n $1 > /tmp/sysupgrade-nand-path
-	install_bin /sbin/upgraded
-	ln -s "$RAM_ROOT"/sbin/upgraded /tmp/upgraded
-	nand_upgrade_stage1
-}
-- 
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