14 files changed, 1040 insertions, 0 deletions
diff --git a/package/block-mount/Config.in b/package/block-mount/Config.in
new file mode 100644
index 000000000..2fa10b668
--- /dev/null
+++ b/package/block-mount/Config.in
@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2010 Vertical Communications
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+config EXTROOT_SETTLETIME
+	int
+	prompt "Settle time for root block device (s)" if PACKAGE_block-mount
+	default 20
+	help
+		This is the amount of time, in seconds, to wait for the block device
+		the root filesystem is on to become available, after the kernel that
+		modules for the rootfs and device are loaded.
+		
+
diff --git a/package/block-mount/Makefile b/package/block-mount/Makefile
new file mode 100644
index 000000000..799539e4b
--- /dev/null
+++ b/package/block-mount/Makefile
@@ -0,0 +1,70 @@
+#
+# Copyright (C) 2006-2012 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=block-mount
+PKG_VERSION:=0.2.0
+PKG_RELEASE:=9
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/block-mount/Default
+  SECTION:=base
+  CATEGORY:=Base system
+endef
+
+define Package/block-mount
+  $(call Package/block-mount/Default)
+  TITLE:=Block device mounting and checking
+  DEPENDS:= +blkid +swap-utils 
+  MENU:=1
+endef
+
+define Package/block-mount/description
+  Scripts used to mount and check block devices (filesystems and swap), as well
+  as hotplug scripts to automount and check block devices when hotplug event (e.g.
+  from plugging in a device) occurs.
+  Also includes preinit scripts for mounting a block device as the root filesystem.
+  This allows one to have the root filesystem on devices other than the built in flash
+  device.
+endef
+
+define Package/block-mount/config
+	source "$(SOURCE)/Config.in"
+endef
+
+define Build/Compile
+endef
+
+define Package/block-mount/conffiles
+/etc/config/fstab
+endef
+
+define Package/block-mount/install
+	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_BIN) ./files/fstab.init $(1)/etc/init.d/fstab
+	$(INSTALL_DIR) $(1)/etc/config
+	$(INSTALL_DATA) ./files/fstab.config $(1)/etc/config/fstab
+	$(INSTALL_DIR) $(1)/lib/functions/fsck
+	$(INSTALL_DATA) ./files/mount.sh $(1)/lib/functions/
+	$(INSTALL_DATA) ./files/fsck.sh $(1)/lib/functions/
+	$(INSTALL_DATA) ./files/block.sh $(1)/lib/functions/
+	$(INSTALL_DIR) $(1)/etc/hotplug.d/block
+	$(INSTALL_DATA) ./files/10-swap $(1)/etc/hotplug.d/block/
+	$(INSTALL_DATA) ./files/20-fsck $(1)/etc/hotplug.d/block/
+	$(INSTALL_DATA) ./files/40-mount $(1)/etc/hotplug.d/block/
+	$(INSTALL_DATA) ./files/extmount.sh $(1)/lib/functions/
+	$(INSTALL_DIR) $(1)/lib/preinit
+	$(INSTALL_DATA) ./files/50_determine_usb_root $(1)/lib/preinit/
+	$(INSTALL_DATA) ./files/55_determine_extroot_sysupgrade $(1)/lib/preinit/
+	$(INSTALL_DATA) ./files/60_pivot_usb_root $(1)/lib/preinit/
+	echo "extroot_settle_time=\"$(CONFIG_EXTROOT_SETTLETIME)\"" >$(1)/lib/preinit/00_extroot.conf
+	$(INSTALL_DIR) $(1)/overlay
+endef
+
+$(eval $(call BuildPackage,block-mount))
diff --git a/package/block-mount/files/10-swap b/package/block-mount/files/10-swap
new file mode 100644
index 000000000..2837d2763
--- /dev/null
+++ b/package/block-mount/files/10-swap
@@ -0,0 +1,78 @@
+#!/bin/sh
+# Copyright (C) 2009-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+. /lib/functions/block.sh
+
+blkdev=`dirname $DEVPATH`
+
+if [ `basename $blkdev` != "block" ]; then
+
+    device=`basename $DEVPATH`
+
+
+    case "$ACTION" in
+	add)
+		local autoswap_from_fstab
+		local automount_from_fstab
+		local from_fstab
+		local anon_mount
+		local anon_swap
+		local anon_fsck
+		local mds_mount_device
+		local sds_swap_device
+		local sds_swap_enabled
+		local use_device
+		local do_swap=0
+
+	    mount_dev_section_cb() {
+			mds_mount_device="$3"
+	    }
+
+	    swap_dev_section_cb() { 
+			sds_swap_device="$2"
+			sds_swap_enabled="$3"
+			return 0
+	    }
+
+		config_get_automount
+		automount_from_fstab="$from_fstab"
+		
+		[ "$automount_from_fstab" -eq 1 ] && {
+			config_get_mount_section_by_device "/dev/$device"
+		}
+		
+		# skip trying swap if this device is defined as a mount point
+		[ -z "$mds_mount_device" ] && {		
+			config_get_autoswap
+			autoswap_from_fstab="$from_fstab"
+		
+			[ "$autoswap_from_fstab" -eq 1 ] && {
+				config_get_swap_section_by_device "/dev/$device"
+				use_device="$sds_swap_device" 
+				do_swap="$sds_swap_enabled"
+			}
+
+			[ -z "$use_device" ] && [ "$anon_swap" -eq 1 ] && {
+				use_device="/dev/$device" && do_swap=1
+			}
+		}
+
+		[ -n "$use_device" ] && [ "$do_swap" -eq 1 ] && {
+			grep -q "$use_device" /proc/swaps || grep -q "$use_device" /proc/mounts || {
+				swapon "$use_device"
+			}
+		}
+		reset_dev_section_cb
+		;;
+	remove)
+		grep -q "/dev/$device" /proc/swaps && {
+			swapoff "/dev/$device"
+		}
+		;;
+    esac	
+fi
+
diff --git a/package/block-mount/files/20-fsck b/package/block-mount/files/20-fsck
new file mode 100644
index 000000000..c59e5abd7
--- /dev/null
+++ b/package/block-mount/files/20-fsck
@@ -0,0 +1,83 @@
+#!/bin/sh
+# Copyright (C) 2009-2010 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+. /lib/functions/block.sh
+. /lib/functions/fsck.sh
+
+blkdev=`dirname $DEVPATH`
+
+if [ `basename $blkdev` != "block" ]; then
+
+    device=`basename $DEVPATH`
+
+    case "$ACTION" in
+	add)
+		local from_fstab
+		local anon_mount
+		local anon_swap
+		local anon_fsck		
+		local mds_mount_target
+		local mds_mount_device
+		local mds_mount_fstype
+		local mds_mount_enabled_fsck
+		local sds_swap_device
+		local use_device
+		local do_fsck=0
+		local fsck_type
+		
+		local autoswap_from_fstab
+		local automount_from_fstab
+		local hotplug_blkid_fstype_match
+
+	    mount_dev_section_cb() {
+			mds_mount_device="$3"
+			mds_mount_fstype="$4"
+			mds_mount_enabled_fsck="$7"
+	    }
+
+	    swap_dev_section_cb() { 
+			sds_swap_device="$2"
+			return 0
+	    }
+
+		config_get_automount
+		automount_from_fstab="$from_fstab"
+		
+		[ "$automount_from_fstab" -eq 1 ] && {
+			config_get_mount_section_by_device "/dev/$device"
+			use_device="$mds_mount_device"
+			[ "$mds_mount_enabled_fsck" -eq 1 ] && { 
+				do_fsck=1
+				fsck_type="$mds_mount_fstype"
+			}
+		}
+		
+		[ -z "$use_device" ] && {
+			config_get_autoswap
+			autoswap_from_fstab="$from_fstab"
+		
+			[ "$autoswap_from_fstab" -eq 1 ] && {
+				config_get_swap_section_by_device "/dev/$device"
+				use_device="$sds_swap_device" && do_fsck=0
+			}
+		}
+		
+		grep -q "/dev/$device" /proc/swaps || grep -q "/dev/$device" /proc/mounts || {
+			[ "$anon_fsck" -eq 1 ] && [ -z "$use_device" ] && {
+				use_device="/dev/$device" && do_fsck=1 && mds_mount_fstype="" && hotplug_blkid_fstype_match=0
+			}
+		}
+		
+		[ "$do_fsck" -eq 1 ] && {		
+			libmount_fsck "$use_device" "$fsck_type" "$do_fsck"
+		}
+		
+		reset_dev_section_cb
+		;;
+    esac	
+fi
+
diff --git a/package/block-mount/files/40-mount b/package/block-mount/files/40-mount
new file mode 100644
index 000000000..f1d63eba6
--- /dev/null
+++ b/package/block-mount/files/40-mount
@@ -0,0 +1,91 @@
+#!/bin/sh
+# Copyright (C) 2009-2012 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+. /lib/functions/block.sh
+
+blkdev=`dirname $DEVPATH`
+if [ `basename $blkdev` != "block" ]; then
+
+    device=`basename $DEVPATH`
+    mountpoint=`sed -ne "s|^[^ ]*/$device ||; T; s/ .*//p" /proc/self/mounts`
+
+    case "$ACTION" in
+	add)
+
+		local from_fstab
+		local anon_mount
+		local anon_swap
+		local anon_fsck
+		local mds_mount_target
+		local mds_mount_device
+		local mds_mount_fstype
+		local sds_swap_device
+		local use_device
+		local do_fsck=0
+		local fsck_type
+		
+		local autoswap_from_fstab
+		local automount_from_fstab
+
+	    mount_dev_section_cb() {
+    		mds_mount_target="$2"
+			mds_mount_device="$3"
+			mds_mount_fstype="$4"
+			mds_mount_enabled="$6"
+	    }
+
+	    swap_dev_section_cb() { 
+			sds_swap_device="$2"
+			return 0
+	    }
+
+		config_get_automount
+		automount_from_fstab="$from_fstab"
+		[ "$automount_from_fstab" -eq 1 ] && {
+			config_get_mount_section_by_device "/dev/$device"
+			use_device="$mds_mount_device"
+			[ "$mds_mount_enabled" -eq 1 ] && {
+				if [ -n "$mds_mount_target" ]; then
+					grep -q "/dev/$device" /proc/swaps || grep -q "/dev/$device" /proc/mounts || {
+						( mkdir -p "$mds_mount_target" && mount "$mds_mount_target" ) 2>&1 | tee /proc/self/fd/2 | logger -t 'fstab'
+					}
+				else
+					logger -t 'fstab' "Mount enabled for $mds_mount_device but it doesn't have a defined mountpoint (target)"
+				fi
+			}
+		}
+
+		[ -z "$use_device" ] && {
+			config_get_autoswap
+			autoswap_from_fstab="$from_fstab"
+		
+			[ "$autoswap_from_fstab" -eq 1 ] && {
+				config_get_swap_section_by_device "/dev/$device"
+				use_device="$sds_swap_device"
+			}
+		}
+		
+		grep -q "/dev/$device" /proc/swaps || grep -q "/dev/$device" /proc/mounts || {
+			[ "$anon_mount" -eq 1 -a -z "$use_device" ] && {
+				case "$device" in
+					mtdblock*) ;;
+					*)
+						( mkdir -p /mnt/$device && mount /dev/$device /mnt/$device ) 2>&1 | tee /proc/self/fd/2 | logger -t 'fstab'
+					;;
+				esac
+			}
+		}
+		reset_dev_section_cb
+		;;
+	remove)
+		umount /dev/$device
+		umount $mountpoint
+		;;
+    esac	
+
+fi
+
diff --git a/package/block-mount/files/50_determine_usb_root b/package/block-mount/files/50_determine_usb_root
new file mode 100644
index 000000000..d39806266
--- /dev/null
+++ b/package/block-mount/files/50_determine_usb_root
@@ -0,0 +1,65 @@
+#!/bin/sh
+# Copyright (C) 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+
+
+determine_external_root() {
+	pi_include /lib/functions/extmount.sh
+	pi_include /lib/functions/mount.sh
+
+	local OLD_UCI_CONFIG_DIR="$UCI_CONFIG_DIR"
+	local OLD_PATH="$PATH"
+	local OLD_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
+	set_jffs_mp
+	determine_root_device
+
+	# extroot requires extroot and fstab config files, therefore 
+	# we assume configuration is incomplete and not to be used if either of them
+	# is missing (for jffs versions of these files on squashfs image)
+	if [ "$jffs" = "/tmp/overlay" ] && [ -r "/tmp/overlay/etc/config/fstab" ]; then
+		UCI_CONFIG_DIR="/tmp/overlay/etc/config"
+		ER_IS_SQUASHFS=true
+		ER_OVERLAY_PREFIX="/tmp/overlay"
+		PATH=$ER_OVERLAY_PREFIX/sbin:$PATH
+		LD_LIBRARY_PATH=$ER_OVERLAY_PREFIX/usr/lib:$LD_LIBRARY_PATH
+		export PATH LD_LIBRARY_PATH
+	fi
+
+	# For squashfs on firstboot root_device will be tmpfs for the ramoverlay,
+	# unless there is a saved config, in which case it will be /dev/root,
+	# however in the case of a saved config, it won't be restored until after
+	# this script, so there won't be a config on the first boot after
+	# flashing a squashfs-based filesystem
+	# For ext2, ramdisk, or jffs2 root filesystems root_device is /dev/root
+	# For squashfs after firstboot, root filesystem is /dev/root	
+	# We only use the config from the root or jffs if the root_device is 
+	# /dev/root
+	[ "$root_device" = "/dev/root" ] && {
+		er_load_modules
+		[ -n "$extroot_settle_time" ] && [ "$extroot_settle_time" -gt 0 ] && {
+			sleep $extroot_settle_time
+		} 
+		config_load fstab
+		config_foreach config_mount_by_section mount 1
+		ER_OVERLAY_ROM="/no-extroot"
+		
+		[ "$rootfs_found" = "1" ] && grep -q ' /overlay ' /proc/mounts && { 
+			pi_extroot_mount_success=true
+			pi_mount_skip_next=false
+			ER_OVERLAY_ROM="/overlay"
+		}
+		[ "$rootfs_found" = "1" ] && grep -q ' /rom ' /proc/mounts && { 
+			pi_extroot_mount_success=true
+			pi_mount_skip_next=false
+			ER_OVERLAY_ROM="/rom"
+		}
+	}
+	UCI_CONFIG_DIR="$OLD_UCI_CONFIG_DIR"
+	PATH="$OLD_PATH"
+	LD_LIBRARY_PATH="$OLD_LD_LIBRARY_PATH"
+	export PATH LD_LIBRARY_PATH
+}
+
+boot_hook_add preinit_mount_root determine_external_root
+
diff --git a/package/block-mount/files/55_determine_extroot_sysupgrade b/package/block-mount/files/55_determine_extroot_sysupgrade
new file mode 100644
index 000000000..b0cd9036c
--- /dev/null
+++ b/package/block-mount/files/55_determine_extroot_sysupgrade
@@ -0,0 +1,63 @@
+#!/bin/sh
+# Copyright (C) 2010 Daniel Dickinson
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+
+
+check_set_md5sum() {
+	local er_md5sum_file
+	er_md5sum_file="${ER_OVERLAY_PREFIX}/.extroot.md5sum"
+	local er_disabled
+	if [ "${ER_OVERLAY_ROM}" = "/rom" ]; then
+		er_disabled=/tmp/whole_root-disabled
+	else
+		er_disabled=/tmp${ER_OVERLAY_ROM}-disabled
+	fi
+
+	local er_extroot_md5sum
+	if [ -f $md5sum_file ]; then
+		er_extroot_md5sum="$(cat $er_md5sum_file)"
+	fi
+
+	local er_overlay_file="${ER_OVERLAY_ROM}/etc/extroot.md5sum"
+
+	local er_extroot_overlay_md5sum
+	if [ -f "$er_overlay_file" ]; then
+		er_extroot_overlay_md5sum="$(cat $er_overlay_file)"
+	fi
+
+	if [ -z "$er_extroot_overlay_md5sum" ]; then
+		cat $er_md5sum_file >$er_overlay_file
+	elif [ "$er_extroot_overlay_md5sum" != "$er_extroot_md5sum" ]; then
+		pi_extroot_mount_success="false"
+		mkdir -p $er_disabled
+		mount --move ${ER_OVERLAY_ROM} $er_disabled
+	fi
+}
+
+set_jffs_md5sum() {
+	# We do this anytime block-extroot exists, even on the first boot with
+	# no extroot defined.
+
+	local er_md5sum_file
+	er_md5sum_file="${ER_OVERLAY_PREFIX}/.extroot.md5sum"
+
+	local er_extroot_md5sum
+	if [ -f $er_md5sum_file ]; then
+		er_extroot_md5sum="$(cat $er_md5sum_file)"
+	fi
+	if [ -z "$er_extroot_md5sum" ]; then
+		dd if=/dev/urandom count=32 bs=1k 2>/dev/null | md5sum | cut -f1 -d\  >$er_md5sum_file
+	fi
+}
+
+determine_extroot_sysupgrade() {
+	check_skip || set_jffs_md5sum
+
+	check_skip || [ "$pi_extroot_mount_success" != "true" ] || {
+		check_set_md5sum
+	}
+}
+
+boot_hook_add preinit_mount_root determine_extroot_sysupgrade
+
diff --git a/package/block-mount/files/60_pivot_usb_root b/package/block-mount/files/60_pivot_usb_root
new file mode 100644
index 000000000..b610a4ade
--- /dev/null
+++ b/package/block-mount/files/60_pivot_usb_root
@@ -0,0 +1,27 @@
+#!/bin/sh
+# Copyright (C) 2010 Vertical Communications
+
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+
+# Determine if we are requested to mount external root
+
+external_root_pivot() {
+	check_skip || [ "$pi_extroot_mount_success" != "true" ] || {
+		echo "switching to external rootfs"
+		if [ "$ER_OVERLAY_ROM" = "/overlay" ]; then
+			if [ "$ER_IS_SQUASHFS" = "true" ]; then
+				umount /tmp/overlay
+			fi
+			mount -o remount,ro / && fopivot /overlay /rom && pi_mount_skip_next=true
+		elif [ "$ER_OVERLAY_ROM" = "/rom" ]; then
+			if [ "$ER_IS_SQUASHFS" = "true" ]; then
+				umount /tmp/overlay
+			fi
+			mount -o remount,ro / && pivot_rom /rom /rom && pi_mount_skip_next=true
+		fi
+	}
+}
+
+boot_hook_add preinit_mount_root external_root_pivot
+
diff --git a/package/block-mount/files/block.sh b/package/block-mount/files/block.sh
new file mode 100644
index 000000000..2b679a8e8
--- /dev/null
+++ b/package/block-mount/files/block.sh
@@ -0,0 +1,264 @@
+#!/bin/sh
+# Copyright 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+. /lib/functions.sh
+
+reset_block_cb() {
+	mount_cb() { 
+		dmc_mount_cfg="$1"
+		shift # skip optional param
+		dmc_target="$2"
+		dmc_mount_device="$3"
+		dmc_fstype="$4"
+		dmc_options="$5"
+		dmc_enabled="$6"
+		dmc_enabled_fsck="$7"
+		dmc_uuid="$8"
+		dmc_label="$9"
+		shift
+		dmc_is_rootfs="$9"
+		return 0
+	}
+	swap_cb() { 
+		dsc_swap_cfg="$1"
+		shift # skip optional param
+		dsc_swap_device="$2"
+		dsc_enabled="$3"
+		dsc_uuid="$4"
+		dsc_label="$5"
+		return 0
+	}
+}
+reset_block_cb
+
+reset_dev_section_cb() {
+	mount_dev_section_cb() {
+		dmds_mount_cfg="$1"
+		dmds_mount_target="$2"
+		dmds_mount_device="$3"
+		dmds_mount_fstype="$4"
+		dmds_mount_options="$5"
+		dmds_mount_enabled="$6"
+		dmds_mount_enabled_fsck="$7"
+		dmds_mount_uuid="$8"
+		dmds_mount_label="$9"
+		shift
+		dmds_is_rootfs="$9"
+		return 0
+	}
+	swap_dev_section_cb() { 
+		dsds_swap_cfg="$1"
+		dsds_swap_device="$2"
+		dsds_swap_enabled="$3"
+		dsds_swap_uuid="$4"
+		dsds_swap_label="$5"
+		return 0
+	}
+}
+reset_dev_section_cb
+
+config_get_mount() {
+	local gm_cfg="$1"
+	local gm_param="$2"
+	local gm_target
+	local gm_device
+	local gm_fstype
+	local gm_options
+	local gm_enabled
+	local gm_enabled_fsck
+	local gm_uuid
+	local gm_label
+	local gm_is_rootfs
+	config_get gm_target "$1" target
+	config_get gm_device "$1" device
+	config_get gm_fstype "$1" fstype 'auto'
+	config_get gm_options "$1" options 'rw'
+	config_get_bool gm_enabled "$1" enabled 1
+	config_get_bool gm_enabled_fsck "$1" enabled_fsck 0
+	config_get gm_uuid "$1" uuid
+	config_get gm_label "$1" label
+	config_get_bool gm_is_rootfs "$1" is_rootfs 0
+	mount_cb "$gm_cfg" "$gm_param" "$gm_target" "$gm_device" "$gm_fstype" "$gm_options" "$gm_enabled" "$gm_enabled_fsck" "$gm_uuid" "$gm_label" "$gm_is_rootfs"
+}
+
+config_get_swap() {
+	local gs_cfg="$1"
+	local gs_param="$2"
+	local gs_device
+	local gs_enabled
+	local gs_uuid
+	local gs_label
+	config_get gs_device "$1" device
+	config_get_bool gs_enabled "$1" enabled 1
+	config_get gs_uuid "$1" uuid
+	config_get gs_label "$1" label
+
+	swap_cb "$gs_cfg" "$gs_param" "$gs_device" "$gs_enabled" "$gs_uuid" "$gs_label"
+}
+
+config_get_automount() {
+	config_load fstab
+	config_get_bool from_fstab "automount" from_fstab 1
+	config_get_bool anon_mount "automount" anon_mount 1
+	config_get_bool anon_fsck "automount" anon_fsck 0
+}
+
+config_get_autoswap() {
+	config_load fstab
+	config_get_bool from_fstab "autoswap" from_fstab 1
+	config_get_bool anon_swap "autoswap" anon_swap 0
+}
+
+config_create_swap_fstab_entry() {
+	local device="$1"
+	local enabled="$2"
+
+	[ -n "$device" ] || return 0
+
+	local fstabnew
+
+	mkdir -p /var/lock
+	lock /var/lock/fstab.lck
+	fstabnew="$(mktemp -t '.fstab.XXXXXXXX')"
+	cat /tmp/fstab | grep -E -v "^$device[[:blank:]]" >>"$fstabnew"
+	[ "$enabled" -eq 1 ] && echo "$device	none	swap	sw	0	0" >> "$fstabnew"
+	cat "$fstabnew" >/tmp/fstab
+	rm -f $fstabnew
+	lock -u /var/lock/fstab.lck
+}
+
+config_create_mount_fstab_entry() {
+	local device="$1"
+	local target="$2"
+	local fstype="$3"
+	local options="$4"
+	local enabled="$5"
+	options="${options:-rw}"
+	[ "$enabled" -eq 0 ] && options="noauto,$options"
+	[ -n "$target" ] || return 0
+	[ -n "$device" ] || return 0
+
+	local fstabnew
+
+	mkdir -p /var/lock
+	lock /var/lock/fstab.lck
+	fstabnew="$(mktemp -t '.fstab.XXXXXXXX')"
+	cat /tmp/fstab | grep -E -v "^$device[[:blank:]]" | grep -v "$target" >>"$fstabnew"
+	echo "$device	$target	$fstype	$options	0	0" >>"$fstabnew"
+	cat "$fstabnew" >/tmp/fstab		
+	rm -f $fstabnew
+	lock -u /var/lock/fstab.lck
+}
+
+libmount_find_token() {
+	local token="$1"
+	local value="$2"
+	local device
+	device="$(blkid -w /dev/null -c /dev/null | grep "$token=\"$value\"" | cut -f1 -d:)"
+	echo "$device"
+}
+
+libmount_find_device_by_id() {
+	local uuid="$1"
+	local label="$2"
+	local device="$3"
+	local cfg_device="$4"
+	local found_device
+	
+	if [ -n "$uuid" ]; then
+		found_device="$(libmount_find_token "UUID" "$uuid")"
+	elif [ -n "$label" ]; then
+		found_device="$(libmount_find_token "LABEL" "$label")"
+	elif [ "$device" = "$cfg_device" ]; then
+		found_device="$device"
+	elif [ -z "$device" ] && [ -e "$cfg_device" ]; then
+		found_device="$cfg_device"
+	fi
+	[ -n "$device" ] && [ "$device" != "$found_device" ] && {
+		found_device=""
+	}
+	echo "$found_device"
+}
+
+config_get_mount_section_by_device() {
+	local msbd_device="$1"
+	local msbd_mount_cfg=
+	local msbd_target=
+	local msbd_mount_device=
+	local msbd_fstype=
+	local msbd_options=
+	local msbd_enabled=
+	local msbd_enabled_fsck=
+	local msbd_uuid=
+	local msbd_label=
+	local msbd_is_rootfs
+	local msbd_blkid_fstype_match=
+	mount_cb() {
+		local mc_cfg="$1"
+		local mc_device="$2"
+		shift
+		local mc_target="$2"
+		local mc_cfgdevice="$3"
+		local mc_fstype="$4"
+		local mc_uuid="$8"
+		local mc_label="$9"
+		shift
+		local mc_is_rootfs="$9"
+		local mc_found_device=""
+		
+		mc_found_device="$(libmount_find_device_by_id "$mc_uuid" "$mc_label" "$mc_device" "$mc_cfgdevice")"
+		if [ -n "$mc_found_device" ]; then
+			msbd_mount_cfg="$mc_cfg"
+			msbd_target="$mc_target"
+			msbd_mount_device="$mc_found_device"
+			msbd_fstype="$mc_fstype"
+			msbd_options="$4"
+			msbd_enabled="$5"
+			msbd_enabled_fsck="$6"
+			msbd_uuid="$7"
+			msbd_label="$8"
+			msbd_is_rootfs="$9"
+		fi
+		return 0	
+	}
+	config_foreach config_get_mount mount "$msbd_device"
+	[ -n "$msbd_mount_device" ] && config_create_mount_fstab_entry "$msbd_mount_device" "$msbd_target" "$msbd_fstype" "$msbd_options" "$msbd_enabled" 
+	mount_dev_section_cb "$msbd_mount_cfg" "$msbd_target" "$msbd_mount_device" "$msbd_fstype" "$msbd_options" "$msbd_enabled" "$msbd_enabled_fsck" "$msbd_uuid" "$msbd_label" "$msbd_is_rootfs"
+	reset_block_cb
+}
+
+config_get_swap_section_by_device() {
+	local ssbd_device="$1"
+	local ssbd_swap_cfg=
+	local ssbd_swap_device=
+	local ssbd_enabled=
+	local ssbd_uuid=
+	local ssbd_label=
+	swap_cb() {
+		local sc_cfg="$1"
+		local sc_device="$2"
+		local sc_uuid="$5"
+		local sc_label="$6"
+		local sc_cfgdevice="$3"
+		local sc_found_device
+
+		sc_found_device="$(libmount_find_device_by_id "$sc_uuid" "$sc_label" "$sc_device" "$sc_cfgdevice")"
+		if [ -n "$sc_found_device" ]; then
+			ssbd_swap_cfg="$sc_cfg"
+			ssbd_swap_device="$sc_found_device"
+			ssbd_enabled="$4"
+			ssbd_uuid="$5"
+			ssbd_label="$6"
+		fi
+		return 0	
+	}
+	config_foreach config_get_swap swap "$ssbd_device"
+	[ -n "$ssbd_swap_device" ] && config_create_swap_fstab_entry "$ssbd_swap_device" "$ssbd_enabled"
+	swap_dev_section_cb "$ssbd_swap_cfg" "$ssbd_swap_device" "$ssbd_enabled" "$ssbd_uuid" "$ssbd_label"
+	reset_block_cb
+}
+
+
diff --git a/package/block-mount/files/extmount.sh b/package/block-mount/files/extmount.sh
new file mode 100644
index 000000000..d6387cc58
--- /dev/null
+++ b/package/block-mount/files/extmount.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# Copyright (C) 2006-2011 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+
+determine_root_device() {
+	root_device="$(mount | grep ' / ' | cut -f1 -d\  | grep -v rootfs )"
+}
+
+set_jffs_mp() {
+	jffs="$(awk '/jffs2/ {print $2}' /proc/mounts)"
+}
+
+er_load_modules() {
+	mkdir -p /tmp/extroot_modules/modules.d
+	mkdir -p /tmp/extroot_modules/modules
+	cp -L /etc/modules-boot.d/* /tmp/overlay/etc/modules-boot.d/* /tmp/extroot_modules/modules.d
+	ln -sf /lib/modules/*/* /tmp/overlay/lib/modules/*/* /tmp/extroot_modules/modules
+	local modules="$(cat /tmp/extroot_modules/modules.d/* 2>/dev/null)"
+	cd /tmp/extroot_modules/modules && [ -n "$modules" ] && {
+		echo "$modules" | sed -e 's/^\([^#].*\)/insmod \.\/\1.ko/'| sh 2>&- || :
+	}
+	rm -rf /tmp/extroot_modules
+}
+
+pivot_rom() { # <new_root> <old_root>
+	mount -o move /proc $1/proc && \
+	pivot_root $1 $1$2 && {
+		mount -o move $2/dev /dev
+		mount -o move $2/tmp /tmp
+		mount -o move $2/sys /sys 2>&-
+		return 0
+	}
+}
+
diff --git a/package/block-mount/files/fsck.sh b/package/block-mount/files/fsck.sh
new file mode 100644
index 000000000..3011160a4
--- /dev/null
+++ b/package/block-mount/files/fsck.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+# Copyright 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+libmount_fsck() {
+	local device="$1"
+	local fsck_fstype="$2"
+	local fsck_enabled="$3"
+	local known_type
+	local found_fsck=0
+	
+
+	grep -q "$device" /proc/swaps || grep -q "$device" /proc/mounts || {
+		[ -e "$device" ] && [ "$fsck_enabled" -eq 1 ] && {
+			for known_type in $libmount_known_fsck; do
+				if [ "$known_type" = "$fsck_fstype" ]; then
+					fsck_${known_type} "$device"
+					found_fsck=1
+					break
+				fi
+			done
+			if [ "$found_fsck" -ne 1 ]; then
+				logger -t 'fstab' "Unable to check/repair $device; no known fsck for filesystem type $fstype"
+			fi
+		}
+	}
+}
+
+libmount_known_fsck=""
+
+pi_include /lib/functions/fsck
+
diff --git a/package/block-mount/files/fstab.config b/package/block-mount/files/fstab.config
new file mode 100644
index 000000000..de52e20ce
--- /dev/null
+++ b/package/block-mount/files/fstab.config
@@ -0,0 +1,20 @@
+config global automount
+	option from_fstab 1
+	option anon_mount 1
+	
+config global autoswap
+	option from_fstab 1
+	option anon_swap 0
+	
+config mount
+	option target	/home
+	option device	/dev/sda1
+	option fstype	ext4
+	option options	rw,sync
+	option enabled	0
+	option enabled_fsck 0
+
+config swap
+	option device	/dev/sda2
+	option enabled	0
+
diff --git a/package/block-mount/files/fstab.init b/package/block-mount/files/fstab.init
new file mode 100644
index 000000000..f54051ebb
--- /dev/null
+++ b/package/block-mount/files/fstab.init
@@ -0,0 +1,88 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2007 OpenWrt.org
+# Copyright (C) 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+
+START=20
+
+EXTRA_COMMANDS="overlay_enable whole_root_enable"
+EXTRA_HELP="        overlay_enable    Reenable overlay rootfs. (After you fix it).
+        whole_root_enable Reenable whole-disk rootfs.  (After you fix it)."
+
+rootfs_enable() {
+	local extroot_type="$1"
+		
+	if [ ! -d /tmp/${extroot_type}-disabled ]; then
+		echo "No disabled ${extroot_type} present (/tmp/${extroot_type}-disabled).  Can't renable."
+		exit 1
+	fi
+	
+	rm -f /tmp/${extroot_type}-disabled/.extroot.md5sum
+	rm -f /tmp/${extroot_type}-disabled/etc/extroot.md5sum
+	echo "Please reboot router to complete re-enabling external rootfs."
+}
+
+overlay_enable() {
+	rootfs_enable overlay
+}
+
+whole_root_enable() {
+	rootfs_enable whole_root
+}
+
+do_mount() {
+	local cfg="$1"
+	config_mount_by_section "$cfg"
+}
+
+do_swapon() {
+	local cfg="$1"
+	config_swapon_by_section "$cfg"
+}
+
+do_unmount() {
+	local cfg="$1"
+
+	config_get target "$cfg" target
+	config_get_bool enabled "$cfg" "enabled" '1'
+	[ -n "$target" -a "$enabled" -gt 0 ] || return 0
+	umount $target
+}
+	
+do_swapoff() {
+	local cfg="$1"
+
+	config_get device "$cfg" device
+	config_get_bool enabled "$cfg" "enabled" '1'
+	[ -n "$device" -a  "$enabled" -gt 0 ] && type swapoff >/dev/null || return 0
+	swapoff $device
+}
+
+start() {
+	. /lib/functions/mount.sh
+
+	config_load fstab
+	mkdir -p /var/lock
+	lock /var/lock/fstab.lck
+	[ -e /tmp/fstab ] || {
+		echo '# WARNING: this is an auto generated file, please use uci to set defined filesystems' > /tmp/fstab
+	}
+	lock -u /var/lock/fstab.lck
+	config_foreach do_swapon swap
+	config_foreach do_mount mount
+	config_foreach do_swapon swap  # do swap a second time so that swap on filesystems is enabled
+}
+
+stop() {
+	. /lib/functions/mount.sh
+
+	config_load fstab
+	config_foreach do_unmount mount
+	config_foreach do_swapoff swap
+	swapoff -a
+}
+
+
diff --git a/package/block-mount/files/mount.sh b/package/block-mount/files/mount.sh
new file mode 100644
index 000000000..e96174ce9
--- /dev/null
+++ b/package/block-mount/files/mount.sh
@@ -0,0 +1,103 @@
+#!/bin/sh
+# Copyright 2010 Vertical Communications
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+
+pi_include /lib/functions/block.sh
+pi_include /lib/functions/fsck.sh
+
+config_mount_by_section() {
+	local cfg="$1"
+	local find_rootfs="$2"
+
+	mount_cb() {
+		local cfg="$1"
+		local device="$2"
+		shift
+		local target="$2"
+		local cfgdevice="$3"
+		local fstype="$4"
+		local options="$5"
+		local enabled="$6"
+		local enabled_fsck="$7"
+		local uuid="$8"
+		local label="$9"
+		shift
+		local is_rootfs="$9"
+		shift
+		local found_device=""
+		
+		found_device="$(libmount_find_device_by_id "$uuid" "$label" "$device" "$cfgdevice")"
+		if [ -n "$found_device" ]; then
+			if [ "$find_rootfs" != "1" ] || ( [ "$is_rootfs" -eq 1 ] || [ "$target" = "/" ] || [ "$target" = "/overlay" ] ); then
+				[ "$enabled_fsck" -eq 1 ] && {
+					grep -q "$found_device" /proc/swaps || grep -q "$found_device" /proc/mounts || {
+						libmount_fsck "$found_device" "$fstype" "$enabled_fsck"
+					}
+				}								
+	
+				if [ "$find_rootfs" = "1" ]; then
+				    if [ "$is_rootfs" -eq 1 ]; then
+					target=/overlay
+				    elif [ "$target" = "/" ]; then
+					target=/rom
+				    fi
+				else
+				    if [ "$is_rootfs" -eq 1 ] || [ "$target" = "/overlay" ]; then
+					target=/tmp/overlay-disabled
+				    elif [ "$target" = "/" ] || [ "$target" = "/rom" ]; then
+					target="/tmp/whole_root-disabled"
+				    fi
+				fi
+				
+				config_create_mount_fstab_entry "$found_device" "$target" "$fstype" "$options" "$enabled" 
+				grep -q "$found_device" /proc/swaps || grep -q "$found_device" /proc/mounts || {
+					[ "$enabled" -eq 1 ] && mkdir -p "$target" && mount "$target" 2>&1 | tee /proc/self/fd/2 | logger -t 'fstab'
+				}
+				
+			fi
+		fi
+		[ "$find_rootfs" = "1" ] && {
+		    [ "$target" = "/overlay" ] && {
+			rootfs_found=1
+		    }
+		    [ "$target" = "/rom" ] && {
+			rootfs_found=1
+		    }
+		}
+		return 0	
+	}
+	config_get_mount "$cfg"
+	reset_block_cb
+}
+
+config_swapon_by_section() {
+	local cfg="$1"
+
+	swap_cb() {
+		local cfg="$1"
+		local device="$2"
+		local cfgdevice="$3"
+		local enabled="$4"
+		local uuid="$5"
+		local label="$6"
+		local uuid
+		local label
+		
+		local found_device=""
+		
+		found_device="$(libmount_find_device_by_id "$uuid" "$label" "$device" "$cfgdevice")"
+
+		if [ -n "$found_device" ]; then
+			config_create_swap_fstab_entry "$found_device" "$enabled"
+			grep -q "$found_device" /proc/swaps || grep -q "$found_device" /proc/mounts || {
+				[ "$enabled" -eq 1 ] && swapon "$found_device" | tee /proc/self/fd/2 | logger -t	 'fstab'
+			}
+		fi
+		return 0	
+	}
+	config_get_swap "$cfg"
+	reset_block_cb
+}