zfs force inherit encryptionroot on received dataset with pyzfs

zfs-force-inherit-example.sh

#!/bin/bash

# Create test pool
dd if=/dev/zero of=/root/zpool bs=1M count=128
zpool create testpool /root/zpool

# Create encryptionroot and some datasets
echo "12345678" | zfs create -o canmount=off -o mountpoint=/mnt -o encryption=on -o keylocation=prompt -o keyformat=passphrase testpool/enc
zfs create testpool/enc/data1
zfs create testpool/enc/data2
touch /mnt/data1/x
touch /mnt/data2/x
zfs snapshot -r testpool/enc@1

# Make a recursive copy of the encryption root
zfs send -Rw testpool/enc@1 | zfs recv testpool/enc_copy

# Make a new dataset on the original encryption root and try to send to the new one
zfs create testpool/enc/data3
touch /mnt/data3/x
zfs snapshot testpool/enc/data3@x
zfs send -Rw testpool/enc/data3@x | zfs recv testpool/enc_copy/data3

# Fix the encryptionroot ourselves:
python -c 'import libzfs_core; libzfs_core.lzc_change_key(b"testpool/enc_copy/data3", "force_inherit")'