From 94322a831539b23fbf0433bf2fe2bbe92c3122da Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Sat, 20 Jun 2009 20:27:32 +0000
Subject: [PATCH] contrib/package: add experimental sysupgrade support for the
 atheros target

---
 contrib/package/sysupgrade-atheros/Makefile   | 55 +++++++++++++++++++
 .../files/lib/upgrade/platform.sh             | 32 +++++++++++
 2 files changed, 87 insertions(+)
 create mode 100644 contrib/package/sysupgrade-atheros/Makefile
 create mode 100644 contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh

diff --git a/contrib/package/sysupgrade-atheros/Makefile b/contrib/package/sysupgrade-atheros/Makefile
new file mode 100644
index 000000000..6b52ee138
--- /dev/null
+++ b/contrib/package/sysupgrade-atheros/Makefile
@@ -0,0 +1,55 @@
+#
+# Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
+#
+# This is free software, licensed under the Apache 2.0 license.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=sysupgrade-atheros
+PKG_RELEASE:=1
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/sysupgrade-atheros
+  SECTION:=luci
+  CATEGORY:=LuCI
+  SUBMENU:=Freifunk
+  TITLE:=Experimental sysupgrade support for Atheros SoC
+  DEPENDS:=+base-files
+endef
+
+define Package/sysupgrade-atheros/description
+  This package implements experimental sysupgrade support for Atheros SoC devices
+  like the classic Fonera or the D-Link DIR-300.
+  See https://lists.openwrt.org/pipermail/openwrt-devel/2009-June/004499.html for details.
+endef
+
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/sysupgrade-atheros/postinst
+#!/bin/sh
+[ -n "$${IPKG_INSTROOT}" ] || {
+  if ! grep -q /etc/firewall.freifunk /etc/config/firewall; then
+    uci add firewall include >/dev/null
+    uci set firewall.@include[-1].path=/etc/firewall.freifunk
+    uci commit firewall
+  fi
+}
+endef
+
+define Package/sysupgrade-atheros/install
+	$(CP) ./files/* $(1)/
+endef
+
+$(eval $(call BuildPackage,sysupgrade-atheros))
diff --git a/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh b/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh
new file mode 100644
index 000000000..87a324810
--- /dev/null
+++ b/contrib/package/sysupgrade-atheros/files/lib/upgrade/platform.sh
@@ -0,0 +1,32 @@
+platform_check_image() {
+	[ "$ARGC" -gt 1 ] && return 1
+
+	case "$(get_magic_word "$1")" in
+		# Freifunk .img files
+		4646) return 0;;
+		*)
+			echo "Invalid image. Use Freifunk .img files on this platform"
+			return 1
+		;;
+	esac
+}
+
+platform_do_upgrade() {
+	local kern_length=$((0x$(dd if="$1" bs=2 skip=1 count=4 2>/dev/null)/65536))
+	local kern_name=$(dd if="$1" bs=2 skip=5 count=8 2>/dev/null); kern_name="${kern_name%% *}"
+	local root_length=$((0x$(dd if="$1" bs=2 skip=13 count=4 2>/dev/null)/65536))
+	local root_name=$(dd if="$1" bs=2 skip=17 count=8 2>/dev/null); root_name="${root_name%% *}"
+
+	local append=""
+	[ -f "$CONF_TAR" -a "$SAVE_CONFIG" -eq 1 ] && append="-j $CONF_TAR"
+
+	if [ -n "$kern_name" -a -n "$root_name" ] && \
+	   [ ${kern_length:-0} -gt 0 -a ${root_length:-0} -gt ${kern_length:-0} ];
+	then
+		dd if="$1" bs=65536 skip=1 count=$kern_length 2>/dev/null | \
+			mtd -e $kern_name write - $kern_name
+
+		dd if="$1" bs=65536 skip=$((1+$kern_length)) count=$root_length 2>/dev/null | \
+			mtd -e $root_name $append write - $root_name
+	fi
+}
-- 
2.25.1