diff options
Diffstat (limited to 'meta/recipes-core/volatile-binds/files/mount-copybind')
| -rwxr-xr-x | meta/recipes-core/volatile-binds/files/mount-copybind | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/meta/recipes-core/volatile-binds/files/mount-copybind b/meta/recipes-core/volatile-binds/files/mount-copybind index e32e675308..ddc4357615 100755 --- a/meta/recipes-core/volatile-binds/files/mount-copybind +++ b/meta/recipes-core/volatile-binds/files/mount-copybind @@ -2,6 +2,9 @@ # # Perform a bind mount, copying existing files as we do so to ensure the # overlaid path has the necessary content. +# If the target is a directory and overlayfs is available (and the environment +# variable MOUNT_COPYBIND_AVOID_OVERLAYFS=1 is not set), then an overlay mount +# will be attempted first. if [ $# -lt 2 ]; then echo >&2 "Usage: $0 spec mountpoint [OPTIONS]" @@ -31,6 +34,13 @@ if [ -d "$mountpoint" ]; then else specdir_existed=no mkdir "$spec" + # If the $spec directory is created we need to take care that + # the selinux context is correct + if command -v selinuxenabled > /dev/null 2>&1; then + if selinuxenabled; then + restorecon "$spec" + fi + fi fi # Fast version of calculating `dirname ${spec}`/.`basename ${spec}`-work @@ -39,13 +49,24 @@ if [ -d "$mountpoint" ]; then # Try to mount using overlay, which is must faster than copying files. # If that fails, fall back to slower copy. - if ! mount -t overlay overlay -olowerdir="$mountpoint",upperdir="$spec",workdir="$overlay_workdir" "$mountpoint" > /dev/null 2>&1; then + if command -v selinuxenabled > /dev/null 2>&1; then + if selinuxenabled; then + mountcontext=",rootcontext=$(matchpathcon -n "$mountpoint")" + fi + fi + if [ "$MOUNT_COPYBIND_AVOID_OVERLAYFS" = 1 ] || ! mount -t overlay overlay -olowerdir="$mountpoint",upperdir="$spec",workdir="$overlay_workdir""$mountcontext" "$mountpoint" > /dev/null 2>&1; then if [ "$specdir_existed" != "yes" ]; then cp -aPR "$mountpoint"/. "$spec/" fi mount -o "bind$options" "$spec" "$mountpoint" + # restore the selinux context. + if command -v selinuxenabled > /dev/null 2>&1; then + if selinuxenabled; then + restorecon -R "$mountpoint" + fi + fi fi elif [ -f "$mountpoint" ]; then if [ ! -f "$spec" ]; then @@ -53,4 +74,10 @@ elif [ -f "$mountpoint" ]; then fi mount -o "bind$options" "$spec" "$mountpoint" + # restore the selinux context. + if command -v selinuxenabled > /dev/null 2>&1; then + if selinuxenabled; then + restorecon -R "$mountpoint" + fi + fi fi |