From 77e4294e8bad5d4608c4fac20d0c2429052e79fa Mon Sep 17 00:00:00 2001
From: David Lutz <kpanic@hirnduenger.de>
Date: Thu, 18 Jul 2024 09:49:17 +0200
Subject: [PATCH] ff3l-badblocks-disable-autoupdater: init

---
 ff3l-badblocks-disable-autoupdater/Makefile   | 31 +++++++++++++++++++
 ff3l-badblocks-disable-autoupdater/README.md  |  7 +++++
 .../upgrade/590-badblocks-disable-autoupdater | 17 ++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 ff3l-badblocks-disable-autoupdater/Makefile
 create mode 100644 ff3l-badblocks-disable-autoupdater/README.md
 create mode 100755 ff3l-badblocks-disable-autoupdater/luasrc/lib/gluon/upgrade/590-badblocks-disable-autoupdater

diff --git a/ff3l-badblocks-disable-autoupdater/Makefile b/ff3l-badblocks-disable-autoupdater/Makefile
new file mode 100644
index 00000000..0046f94b
--- /dev/null
+++ b/ff3l-badblocks-disable-autoupdater/Makefile
@@ -0,0 +1,31 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ff3l-badblocks-disable-autoupdater
+PKG_VERSION:=1
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+include ../../../package/gluon.mk
+
+define Package/ff3l-badblocks-disable-autoupdater
+  SECTION:=gluon
+  CATEGORY:=Gluon
+  TITLE:=Disable autoupdater if device has bad eraseblocks
+endef
+
+define Build/Prepare
+	mkdir -p $(PKG_BUILD_DIR)
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+	$(call GluonSrcDiet,./luasrc,$(PKG_BUILD_DIR)/luadest/)
+endef
+
+define Package/ff3l-badblocks-disable-autoupdater/install
+	$(CP) $(PKG_BUILD_DIR)/luadest/* $(1)/
+endef
+
+$(eval $(call BuildPackage,ff3l-badblocks-disable-autoupdater))
\ No newline at end of file
diff --git a/ff3l-badblocks-disable-autoupdater/README.md b/ff3l-badblocks-disable-autoupdater/README.md
new file mode 100644
index 00000000..6d0417d7
--- /dev/null
+++ b/ff3l-badblocks-disable-autoupdater/README.md
@@ -0,0 +1,7 @@
+ff3l-badblocks-disable-autoupdater
+=============
+
+Transitional package to be used with last Gluon v2019.1.x release
+Simply disables the autoupdater for UBNT ERX devices with bad eraseblocks in flash and prefixes the node's name with "#BADBLOCKS".
+This mitigates the issue that these devices would get bricked by an update to Gluon v2020.1 or newer, where the handling of bad eraseblocks has been changed.
+
diff --git a/ff3l-badblocks-disable-autoupdater/luasrc/lib/gluon/upgrade/590-badblocks-disable-autoupdater b/ff3l-badblocks-disable-autoupdater/luasrc/lib/gluon/upgrade/590-badblocks-disable-autoupdater
new file mode 100755
index 00000000..71790218
--- /dev/null
+++ b/ff3l-badblocks-disable-autoupdater/luasrc/lib/gluon/upgrade/590-badblocks-disable-autoupdater
@@ -0,0 +1,17 @@
+#!/usr/bin/lua
+local uci = require('simple-uci').cursor()
+local eraseblock = io.popen("dmesg|grep \"Bad eraseblock\""):read('*a')
+local hostname = uci:get_first('system', 'system', 'hostname')
+if (eraseblock ~= '') then
+  io.write('has badblocks, disabling autoupdater...\n')
+  uci:set('autoupdater', 'settings', 'enabled', '0')
+  uci:save('autoupdater')
+  if hostname:find('BADBLOCKS') then
+    io.write('already prefixed\n')
+  else
+    io.write('changing hostname to "#BADBLOCKS '..hostname..'"...\n')
+    io.popen('pretty-hostname "#BADBLOCKS '..hostname..'"')
+  end
+else
+  io.write('no badblocks\n')
+end