From 8fc617944db680bcc77564b339bb6c44eca24044 Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Mon, 27 Mar 2017 21:24:12 +0300 Subject: Add media automounting support Use the automount.rules from udev-extraconf for mounting and unmounting removable media AGL-Issue: SPEC-483 Change-Id: I8c0353a76d5080ec2e4eff9dc4a48ba771e7a393 Signed-off-by: Matt Ranostay --- .../recipes-core/systemd/systemd/automount-rules | 19 +++++ meta-agl/recipes-core/systemd/systemd/mount.sh | 90 ++++++++++++++++++++++ meta-agl/recipes-core/systemd/systemd_%.bbappend | 7 ++ 3 files changed, 116 insertions(+) create mode 100644 meta-agl/recipes-core/systemd/systemd/automount-rules create mode 100644 meta-agl/recipes-core/systemd/systemd/mount.sh diff --git a/meta-agl/recipes-core/systemd/systemd/automount-rules b/meta-agl/recipes-core/systemd/systemd/automount-rules new file mode 100644 index 000000000..62578ea63 --- /dev/null +++ b/meta-agl/recipes-core/systemd/systemd/automount-rules @@ -0,0 +1,19 @@ +# There are a number of modifiers that are allowed to be used in some +# of the different fields. They provide the following subsitutions: +# +# %n the "kernel number" of the device. +# For example, 'sda3' has a "kernel number" of '3' +# %e the smallest number for that name which does not matches an existing node +# %k the kernel name for the device +# %M the kernel major number for the device +# %m the kernel minor number for the device +# %b the bus id for the device +# %c the string returned by the PROGRAM +# %s{filename} the content of a sysfs attribute +# %% the '%' char itself +# + +# Media automounting +SUBSYSTEM=="block", ACTION=="add" RUN+="/etc/udev/scripts/mount.sh" +SUBSYSTEM=="block", ACTION=="remove" RUN+="/etc/udev/scripts/mount.sh" +SUBSYSTEM=="block", ACTION=="change", ENV{DISK_MEDIA_CHANGE}=="1" RUN+="/etc/udev/scripts/mount.sh" diff --git a/meta-agl/recipes-core/systemd/systemd/mount.sh b/meta-agl/recipes-core/systemd/systemd/mount.sh new file mode 100644 index 000000000..cd72b05cc --- /dev/null +++ b/meta-agl/recipes-core/systemd/systemd/mount.sh @@ -0,0 +1,90 @@ +#!/bin/sh +# +# Called from udev +# +# Attempt to mount any added block devices and umount any removed devices + + +MOUNT="/bin/mount -o ro" +PMOUNT="/usr/bin/pmount" +UMOUNT="/bin/umount -f" +for line in `grep -h -v ^# /etc/udev/mount.blacklist /etc/udev/mount.blacklist.d/*` +do + if [ ` expr match "$DEVNAME" "$line" ` -gt 0 ]; + then + logger "udev/mount.sh" "[$DEVNAME] is blacklisted, ignoring" + exit 0 + fi +done + +automount() { + name="`basename "$DEVNAME"`" + + ! test -d "/run/media/$name" && mkdir -p "/run/media/$name" + # Silent util-linux's version of mounting auto + if [ "x`readlink $MOUNT`" = "x/bin/mount.util-linux" ] ; + then + MOUNT="$MOUNT -o silent" + fi + + # If filesystem type is vfat, change the ownership group to 'disk', and + # grant it with w/r/x permissions. + case $ID_FS_TYPE in + vfat|fat) + MOUNT="$MOUNT -o umask=007,gid=`awk -F':' '/^disk/{print $3}' /etc/group`" + ;; + # TODO + *) + ;; + esac + + if ! $MOUNT -t auto $DEVNAME "/run/media/$name" + then + #logger "mount.sh/automount" "$MOUNT -t auto $DEVNAME \"/run/media/$name\" failed!" + rm_dir "/run/media/$name" + else + logger "mount.sh/automount" "Auto-mount of [/run/media/$name] successful" + touch "/tmp/.automount-$name" + fi +} + +rm_dir() { + # We do not want to rm -r populated directories + if test "`find "$1" | wc -l | tr -d " "`" -lt 2 -a -d "$1" + then + ! test -z "$1" && rm -r "$1" + else + logger "mount.sh/automount" "Not removing non-empty directory [$1]" + fi +} + +# No ID_FS_TYPE for cdrom device, yet it should be mounted +name="`basename "$DEVNAME"`" +[ -e /sys/block/$name/device/media ] && media_type=`cat /sys/block/$name/device/media` + +if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ] && [ -n "$ID_FS_TYPE" -o "$media_type" = "cdrom" ]; then + if [ -x "$PMOUNT" ]; then + $PMOUNT $DEVNAME 2> /dev/null + elif [ -x $MOUNT ]; then + $MOUNT $DEVNAME 2> /dev/null + fi + + # If the device isn't mounted at this point, it isn't + # configured in fstab (note the root filesystem can show up as + # /dev/root in /proc/mounts, so check the device number too) + if expr $MAJOR "*" 256 + $MINOR != `stat -c %d /`; then + grep -q "^$DEVNAME " /proc/mounts || automount + fi +fi + + +if [ "$ACTION" = "remove" ] || [ "$ACTION" = "change" ] && [ -x "$UMOUNT" ] && [ -n "$DEVNAME" ]; then + for mnt in `cat /proc/mounts | grep "$DEVNAME" | cut -f 2 -d " " ` + do + $UMOUNT $mnt + done + + # Remove empty directories from auto-mounter + name="`basename "$DEVNAME"`" + test -e "/tmp/.automount-$name" && rm_dir "/run/media/$name" +fi diff --git a/meta-agl/recipes-core/systemd/systemd_%.bbappend b/meta-agl/recipes-core/systemd/systemd_%.bbappend index ef877c0c1..a3213dc9c 100644 --- a/meta-agl/recipes-core/systemd/systemd_%.bbappend +++ b/meta-agl/recipes-core/systemd/systemd_%.bbappend @@ -1,6 +1,8 @@ FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" SRC_URI += "file://e2fsck.conf \ + file://automount-rules \ + file://mount.sh \ ${@bb.utils.contains('VIRTUAL-RUNTIME_net_manager','systemd','file://wired.network','',d)} \ " @@ -13,6 +15,11 @@ do_install_append() { # Install /etc/e2fsck.conf to avoid boot stuck by wrong clock time install -m 644 -p -D ${WORKDIR}/e2fsck.conf ${D}${sysconfdir}/e2fsck.conf + if ${@bb.utils.contains('DISTRO_FEATURES', 'automount', 'true', 'false', d)}; then + install -m 644 -p -D ${WORKDIR}/automount-rules ${D}${sysconfdir}/udev/rules.d/automount.rules + install -m 755 -p -D ${WORKDIR}/mount.sh ${D}${sysconfdir}/udev/scripts/mount.sh + fi + if ${@bb.utils.contains('VIRTUAL-RUNTIME_net_manager','systemd','true','false',d)}; then # Install DHCP configuration for Ethernet adapters install -m 644 ${WORKDIR}/wired.network ${D}${sysconfdir}/systemd/network -- cgit 1.2.3-korg