automount: add rule to automount update partition

https://jira.digi.com/browse/DEL-3512

Signed-off-by: David Escalona <david.escalona@digi.com>

meta-digi-arm/recipes-core/udev/udev-extraconf/automount.rules

@@ -16,6 +16,10 @@
 # Boot partitions
 SUBSYSTEM=="block", ENV{ID_PART_ENTRY_NAME}=="linux*", ACTION=="add", RUN+="/etc/udev/scripts/mount_bootparts.sh", GOTO="automount_rules_end"
 
+# Update partition
+SUBSYSTEM=="block", ENV{ID_PART_ENTRY_NAME}=="update*", ACTION=="add", RUN+="/etc/udev/scripts/mount_partition.sh 'update'", GOTO="automount_rules_end"
+SUBSYSTEM=="mtd", ATTRS{name}=="update", ACTION=="add", RUN+="/etc/udev/scripts/mount_partition.sh 'update'", GOTO="automount_rules_end"
+
 # Media automounting
 SUBSYSTEM=="block", ACTION=="add"    RUN+="/etc/udev/scripts/mount.sh"
 SUBSYSTEM=="block", ACTION=="remove" RUN+="/etc/udev/scripts/mount.sh"

meta-digi-arm/recipes-core/udev/udev-extraconf/mount_partition.sh

@@ -0,0 +1,46 @@
+#!/bin/sh
+#===============================================================================
+#
+#  mount_partition.sh
+#
+#  Copyright (C) 2017 by Digi International Inc.
+#  All rights reserved.
+#
+#  This program is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License version 2 as published by
+#  the Free Software Foundation.
+#
+#  !Description: Attempt to mount the partition triggered by udev
+#
+#===============================================================================
+
+MOUNT="/bin/mount"
+PARTITION_NAME="${1}"
+MOUNTPOINT="/mnt/${PARTITION_NAME}"
+
+# Use 'silent' if util-linux's mount (busybox's does not support that option)
+[ "$(readlink ${MOUNT})" = "/bin/mount.util-linux" ] && MOUNT="${MOUNT} -o silent"
+
+if mkdir -p "${MOUNTPOINT}" && ! mountpoint -q "${MOUNTPOINT}"; then
+	if [ "${SUBSYSTEM}" = "block" ]; then
+		FSTYPE="$(blkid ${DEVNAME} | sed -e 's,.*TYPE="\([^"]\+\)".*,\1,g')"
+		if ! mount ${FSTYPE:+-t ${FSTYPE}} "${DEVNAME}" "${MOUNTPOINT}"; then
+			logger -t udev "ERROR: Could not mount '${PARTITION_NAME}' partition"
+			rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+		fi
+	elif [ "${SUBSYSTEM}" = "mtd" ]; then
+		# Attach and get UBI device number
+		dev_number="$(ubiattach -p ${DEVNAME} 2>/dev/null | sed -ne 's,.*device number \([0-9]\).*,\1,g;T;p' 2>/dev/null)"
+		# Check if volume exists.
+		if ubinfo "/dev/ubi${dev_number}" -N "${PARTITION_NAME}" >/dev/null 2>&1; then
+			# Mount the volume.
+			if ! mount -t ubifs "ubi${dev_number}:${PARTITION_NAME}" "${MOUNTPOINT}"; then
+				logger -t udev "ERROR: Could not mount '${PARTITION_NAME}' partition"
+				rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+			fi
+		else
+			logger -t udev "ERROR: Could not mount '${PARTITION_NAME}' partition, volume not found"
+			rmdir --ignore-fail-on-non-empty ${MOUNTPOINT}
+		fi
+	fi
+fi

meta-digi-arm/recipes-core/udev/udev-extraconf_1.1.bbappend

@@ -2,10 +2,14 @@
 
 FILESEXTRAPATHS_prepend := "${THISDIR}/${BPN}:"
 
-SRC_URI += "file://mount_bootparts.sh"
+SRC_URI += " \
+    file://mount_bootparts.sh \
+    file://mount_partition.sh \
+"
 
 do_install_append() {
 	install -m 0755 ${WORKDIR}/mount_bootparts.sh ${D}${sysconfdir}/udev/scripts/
+	install -m 0755 ${WORKDIR}/mount_partition.sh ${D}${sysconfdir}/udev/scripts/
 
 	# Bluetooth tty symlink
 	if [ -n "${BT_TTY}" ]; then