Commits on Feb 16, 2022

1. Enable encrypted raw sending to pools with greater ashift …

   Raw sending from pool1/encrypted with ashift=9 to pool2/encrypted with
   ashift=12 results to failure when mounting pool2/encrypted (Input/Output
   error). Notably, the opposite, raw sending from a greater ashift to a
   lower one does not fail.
   
   This happens because zio_compress_write() falsely checks only
   ZIO_FLAG_RAW_COMPRESS and not ZIO_FLAG_RAW_ENCRYPT which is also set in
   encrypted raw send streams. In this case it rounds up the psize and if
   not equal to the zio->io_size it modifies the block by zeroing out
   the extra bytes. Because this happens in a SA attr. registration object
   (type=46), the decryption fails upon mounting the filesystem, and zpool
   status falsely reports an error.
   
   Fix this by checking both ZIO_FLAG_RAW_COMPRESS and ZIO_FLAG_RAW_ENCRYPT
   before deciding whether to zero-pad a block.
   
   Signed-off-by: George Amanakis <gamanakis@gmail.com>

   

   gamanakis committed Feb 16, 2022
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