[meta-security][PATCH] Add EROFS support to dm-verity-img class

[meta-security][PATCH] Add EROFS support to dm-verity-img class

[Josh Harley]

Add support for the EROFS image, and it's compressed options, to the
dm-verity-img.bbclass setup, theoretically this is a simple addition to
the list of types however there is a quirk in how Poky handles the
filesystems in poky/meta/classes/image_types.bbclass.

Specifically the 'IMAGE_CMD' and 'IMAGE_FSTYPES' use a hyphen, e.g.
erofs-lz4, however in the image_type bbclass the task for that would be
"do_image_erofs_lz4", replacing the hyphen with an underscore.

As the dm-verity-img.bbclass adds a dependency to the wic image creation
on the do_image_* task then it fails as there is no
"do_image_erofs-lz4", so simply replace the hypen with an underscore.
---
 classes/dm-verity-img.bbclass | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/classes/dm-verity-img.bbclass b/classes/dm-verity-img.bbclass
index 16d395b..cc6a7f5 100644
--- a/classes/dm-verity-img.bbclass
+++ b/classes/dm-verity-img.bbclass
@@ -60,7 +60,7 @@ verity_setup() {
     veritysetup --data-block-size=1024 --hash-offset=$SIZE format $OUTPUT $OUTPUT | tail -n +2 | process_verity
 }
 
-VERITY_TYPES = "ext2.verity ext3.verity ext4.verity btrfs.verity"
+VERITY_TYPES = "ext2.verity ext3.verity ext4.verity btrfs.verity erofs.verity erofs-lz4.verity erofs-lz4hc.verity"
 IMAGE_TYPES += "${VERITY_TYPES}"
 CONVERSIONTYPES += "verity"
 CONVERSION_CMD_verity = "verity_setup ${type}"
@@ -87,6 +87,6 @@ python __anonymous() {
     # If we're using wic: we'll have to use partition images and not the rootfs
     # source plugin so add the appropriate dependency.
     if 'wic' in image_fstypes:
-        dep = ' %s:do_image_%s' % (pn, verity_type)
+        dep = ' %s:do_image_%s' % (pn, verity_type.replace("-", "_"))
         d.appendVarFlag('do_image_wic', 'depends', dep)
 }
-- 
2.26.2