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qapi: Make parameter 'file' optional for BlockdevCreateOptionsLUKS

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To support detached LUKS header creation, make the existing 'file'
field in BlockdevCreateOptionsLUKS optional.

Signed-off-by: Hyman Huang <yong.huang@smartx.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Hyman Huang 2024-01-30 13:37:20 +08:00 committed by Daniel P. Berrangé
parent 9ad5c4e7ee
commit 433957bb7f
2 changed files with 17 additions and 9 deletions
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21
block/crypto.c
View File

@ -663,9 +663,9 @@ block_crypto_co_create_luks(BlockdevCreateOptions *create_options, Error **errp)
assert(create_options->driver == BLOCKDEV_DRIVER_LUKS);
luks_opts = &create_options->u.luks;
bs = bdrv_co_open_blockdev_ref(luks_opts->file, errp);
if (bs == NULL) {
return -EIO;
if (luks_opts->file == NULL) {
error_setg(errp, "Formatting LUKS disk requires parameter 'file'");
return -EINVAL;
}
create_opts = (QCryptoBlockCreateOptions) {
@ -677,10 +677,17 @@ block_crypto_co_create_luks(BlockdevCreateOptions *create_options, Error **errp)
preallocation = luks_opts->preallocation;
}
ret = block_crypto_co_create_generic(bs, luks_opts->size, &create_opts,
preallocation, errp);
if (ret < 0) {
goto fail;
if (luks_opts->file) {
bs = bdrv_co_open_blockdev_ref(luks_opts->file, errp);
if (bs == NULL) {
return -EIO;
}
ret = block_crypto_co_create_generic(bs, luks_opts->size, &create_opts,
preallocation, errp);
if (ret < 0) {
goto fail;
}
}
ret = 0;

5
qapi/block-core.json
View File

@ -4955,7 +4955,8 @@
#
# Driver specific image creation options for LUKS.
#
# @file: Node to create the image format on
# @file: Node to create the image format on, mandatory except when
# 'preallocation' is not requested
#
# @size: Size of the virtual disk in bytes
#
@ -4966,7 +4967,7 @@
##
{ 'struct': 'BlockdevCreateOptionsLUKS',
'base': 'QCryptoBlockCreateOptionsLUKS',
'data': { 'file': 'BlockdevRef',
'data': { '*file': 'BlockdevRef',
'size': 'size',
'*preallocation': 'PreallocMode' } }