diff mbox series

[isar-cip-core,v4] initramfs-overlay-hook: Check file system of INITRAMFS_OVERLAY_STORAGE_DEVICE

Message ID 20240715135258.902008-1-clara.kowalsky@siemens.com (mailing list archive)
State New
Headers show
Series [isar-cip-core,v4] initramfs-overlay-hook: Check file system of INITRAMFS_OVERLAY_STORAGE_DEVICE | expand

Commit Message

Clara Kowalsky July 15, 2024, 1:52 p.m. UTC 
In case of ext*, this detects and fixes file system errors in the
partition device before doing the partition mount.
If the partition turns out to be broken, the factory state is recovered.

Signed-off-by: Clara Kowalsky <clara.kowalsky@siemens.com>
---
 .../initramfs-overlay-hook/files/overlay.hook      | 11 +++++++++--
 .../files/overlay.script.tmpl                      | 11 ++++++++++-
 .../files/overlay_recovery_action.script           | 14 ++++++++++++++
 .../initramfs-overlay-hook_0.1.bb                  |  8 +++++++-
 4 files changed, 40 insertions(+), 4 deletions(-)
 create mode 100644 recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script

Comments

Jan Kiszka July 17, 2024, 2:56 p.m. UTC | #1 
On 15.07.24 15:52, Clara Kowalsky wrote:
> In case of ext*, this detects and fixes file system errors in the
> partition device before doing the partition mount.
> If the partition turns out to be broken, the factory state is recovered.
> 
> Signed-off-by: Clara Kowalsky <clara.kowalsky@siemens.com>
> ---
>  .../initramfs-overlay-hook/files/overlay.hook      | 11 +++++++++--
>  .../files/overlay.script.tmpl                      | 11 ++++++++++-
>  .../files/overlay_recovery_action.script           | 14 ++++++++++++++
>  .../initramfs-overlay-hook_0.1.bb                  |  8 +++++++-
>  4 files changed, 40 insertions(+), 4 deletions(-)
>  create mode 100644 recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script
> 
> diff --git a/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook b/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook
> index 8b00ecf..6f634c5 100644
> --- a/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook
> +++ b/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook
> @@ -22,6 +22,13 @@ esac
>  
>  . /usr/share/initramfs-tools/hook-functions
>  
> +hook_error() {
> +    echo "(ERROR): $1" >&2
> +    exit 1
> +}
> +
>  manual_add_modules overlay
> -copy_exec /usr/bin/mountpoint
> -copy_exec /usr/bin/awk
> +copy_exec /usr/bin/mountpoint || hook_error "/usr/bin/mountpoint not found"
> +copy_exec /usr/bin/awk || hook_error "/usr/bin/awk not found"
> +copy_exec /usr/sbin/e2fsck || hook_error "/usr/sbin/e2fsck not found"
> +copy_exec /usr/sbin/mke2fs || hook_error "/usr/sbin/mke2fs not found"
> diff --git a/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl b/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl
> index 42eb59c..deda034 100644
> --- a/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl
> +++ b/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl
> @@ -31,12 +31,21 @@ ovl_partition_device="${INITRAMFS_OVERLAY_STORAGE_DEVICE}"
>  ovl_storage_path="${INITRAMFS_OVERLAY_STORAGE_PATH}"
>  ovl_lower_dirs="${INITRAMFS_OVERLAY_PATHS}"
>  ovl_mount_option="${INITRAMFS_OVERLAY_MOUNT_OPTION}"
> +ovl_recovery_script="/scripts/${INITRAMFS_OVERLAY_RECOVERY_SCRIPT}"
>  
>  root_mount_storage=${rootmnt}${ovl_storage_path}
>  storage_mount_point="$(echo "${ovl_storage_path}" | awk -F/ '{print FS$2}' )"
> +partition_fstype=$(get_fstype "${ovl_partition_device}")
>  
>  if ! mountpoint -q "${rootmnt}${storage_mount_point}"; then
> -	if ! mount -t $(get_fstype ${ovl_partition_device}) \
> +	if [ "$partition_fstype" = "ext*" ]; then

This will never be true :). You want "case" so that matching on * works.

> +		if ! e2fsck -p -f "$ovl_partition_device"; then
> +			if [ -f "$ovl_recovery_script" ] && [ -x "$ovl_recovery_script" ]; then

If you combine the three conditions via &&, you save two levels of
indention...

> +				"$ovl_recovery_script" "$ovl_partition_device" "$partition_fstype"

...and this line become a bit shorter.

> +			fi
> +		fi
> +	fi
> +	if ! mount -t ${partition_fstype} \
>  		 -o ${ovl_mount_option} \
>  		 ${ovl_partition_device} \
>  		 ${rootmnt}${storage_mount_point}; then
> diff --git a/recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script b/recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script
> new file mode 100644
> index 0000000..4ef0148
> --- /dev/null
> +++ b/recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script
> @@ -0,0 +1,14 @@
> +#!/bin/sh
> +#
> +# CIP Core, generic profile
> +#
> +# Copyright (c) Siemens AG, 2024
> +#
> +# Authors:
> +#  Clara Kowalsky <clara.kowalsky@siemens.com>
> +#
> +
> +ovl_partition_device="$1"
> +partition_fstype="$2"
> +
> +mke2fs -t "$partition_fstype" "$ovl_partition_device"
> diff --git a/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb b/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb
> index 955748f..7097130 100644
> --- a/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb
> +++ b/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb
> @@ -12,9 +12,12 @@
>  
>  inherit dpkg-raw
>  
> +INITRAMFS_OVERLAY_RECOVERY_SCRIPT ??= "overlay_recovery_action.script"
> +
>  SRC_URI += " \
>      file://overlay.hook \
>      file://overlay.script.tmpl \
> +    file://${INITRAMFS_OVERLAY_RECOVERY_SCRIPT} \
>      "
>  
>  # The variable INITRAMFS_OVERLAY_PATHS contains the directories which are
> @@ -35,7 +38,8 @@ TEMPLATE_FILES = "overlay.script.tmpl"
>  TEMPLATE_VARS += " INITRAMFS_OVERLAY_STORAGE_PATH \
>      INITRAMFS_OVERLAY_PATHS \
>      INITRAMFS_OVERLAY_STORAGE_DEVICE \
> -    INITRAMFS_OVERLAY_MOUNT_OPTION"
> +    INITRAMFS_OVERLAY_MOUNT_OPTION \
> +    INITRAMFS_OVERLAY_RECOVERY_SCRIPT"
>  
>  DEBIAN_DEPENDS = "initramfs-tools, awk, coreutils, util-linux"
>  
> @@ -48,4 +52,6 @@ do_install() {
>          "${D}/usr/share/initramfs-tools/hooks/overlay"
>      install -m 0755 "${WORKDIR}/overlay.script" \
>          "${D}/usr/share/initramfs-tools/scripts/local-bottom/overlay"
> +    install -m 0755 "${WORKDIR}/${INITRAMFS_OVERLAY_RECOVERY_SCRIPT}" \
> +        "${D}/usr/share/initramfs-tools/scripts"
>  }

Jan
diff mbox series

Patch

diff --git a/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook b/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook
index 8b00ecf..6f634c5 100644
--- a/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook
+++ b/recipes-initramfs/initramfs-overlay-hook/files/overlay.hook
@@ -22,6 +22,13 @@  esac
 
 . /usr/share/initramfs-tools/hook-functions
 
+hook_error() {
+    echo "(ERROR): $1" >&2
+    exit 1
+}
+
 manual_add_modules overlay
-copy_exec /usr/bin/mountpoint
-copy_exec /usr/bin/awk
+copy_exec /usr/bin/mountpoint || hook_error "/usr/bin/mountpoint not found"
+copy_exec /usr/bin/awk || hook_error "/usr/bin/awk not found"
+copy_exec /usr/sbin/e2fsck || hook_error "/usr/sbin/e2fsck not found"
+copy_exec /usr/sbin/mke2fs || hook_error "/usr/sbin/mke2fs not found"
diff --git a/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl b/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl
index 42eb59c..deda034 100644
--- a/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl
+++ b/recipes-initramfs/initramfs-overlay-hook/files/overlay.script.tmpl
@@ -31,12 +31,21 @@  ovl_partition_device="${INITRAMFS_OVERLAY_STORAGE_DEVICE}"
 ovl_storage_path="${INITRAMFS_OVERLAY_STORAGE_PATH}"
 ovl_lower_dirs="${INITRAMFS_OVERLAY_PATHS}"
 ovl_mount_option="${INITRAMFS_OVERLAY_MOUNT_OPTION}"
+ovl_recovery_script="/scripts/${INITRAMFS_OVERLAY_RECOVERY_SCRIPT}"
 
 root_mount_storage=${rootmnt}${ovl_storage_path}
 storage_mount_point="$(echo "${ovl_storage_path}" | awk -F/ '{print FS$2}' )"
+partition_fstype=$(get_fstype "${ovl_partition_device}")
 
 if ! mountpoint -q "${rootmnt}${storage_mount_point}"; then
-	if ! mount -t $(get_fstype ${ovl_partition_device}) \
+	if [ "$partition_fstype" = "ext*" ]; then
+		if ! e2fsck -p -f "$ovl_partition_device"; then
+			if [ -f "$ovl_recovery_script" ] && [ -x "$ovl_recovery_script" ]; then
+				"$ovl_recovery_script" "$ovl_partition_device" "$partition_fstype"
+			fi
+		fi
+	fi
+	if ! mount -t ${partition_fstype} \
 		 -o ${ovl_mount_option} \
 		 ${ovl_partition_device} \
 		 ${rootmnt}${storage_mount_point}; then
diff --git a/recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script b/recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script
new file mode 100644
index 0000000..4ef0148
--- /dev/null
+++ b/recipes-initramfs/initramfs-overlay-hook/files/overlay_recovery_action.script
@@ -0,0 +1,14 @@ 
+#!/bin/sh
+#
+# CIP Core, generic profile
+#
+# Copyright (c) Siemens AG, 2024
+#
+# Authors:
+#  Clara Kowalsky <clara.kowalsky@siemens.com>
+#
+
+ovl_partition_device="$1"
+partition_fstype="$2"
+
+mke2fs -t "$partition_fstype" "$ovl_partition_device"
diff --git a/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb b/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb
index 955748f..7097130 100644
--- a/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb
+++ b/recipes-initramfs/initramfs-overlay-hook/initramfs-overlay-hook_0.1.bb
@@ -12,9 +12,12 @@ 
 
 inherit dpkg-raw
 
+INITRAMFS_OVERLAY_RECOVERY_SCRIPT ??= "overlay_recovery_action.script"
+
 SRC_URI += " \
     file://overlay.hook \
     file://overlay.script.tmpl \
+    file://${INITRAMFS_OVERLAY_RECOVERY_SCRIPT} \
     "
 
 # The variable INITRAMFS_OVERLAY_PATHS contains the directories which are
@@ -35,7 +38,8 @@  TEMPLATE_FILES = "overlay.script.tmpl"
 TEMPLATE_VARS += " INITRAMFS_OVERLAY_STORAGE_PATH \
     INITRAMFS_OVERLAY_PATHS \
     INITRAMFS_OVERLAY_STORAGE_DEVICE \
-    INITRAMFS_OVERLAY_MOUNT_OPTION"
+    INITRAMFS_OVERLAY_MOUNT_OPTION \
+    INITRAMFS_OVERLAY_RECOVERY_SCRIPT"
 
 DEBIAN_DEPENDS = "initramfs-tools, awk, coreutils, util-linux"
 
@@ -48,4 +52,6 @@  do_install() {
         "${D}/usr/share/initramfs-tools/hooks/overlay"
     install -m 0755 "${WORKDIR}/overlay.script" \
         "${D}/usr/share/initramfs-tools/scripts/local-bottom/overlay"
+    install -m 0755 "${WORKDIR}/${INITRAMFS_OVERLAY_RECOVERY_SCRIPT}" \
+        "${D}/usr/share/initramfs-tools/scripts"
 }