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From b3285cc15d305161dd0f3730690d6a441c906456 Mon Sep 17 00:00:00 2001
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Message-Id: <b3285cc15d305161dd0f3730690d6a441c906456@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 4 Feb 2020 15:07:45 +0100
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Subject: [PATCH] qemu: block: Don't skip creation of 'luks' formatted images
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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libvirt treats 'luks' images as raw+encryption. The logic in
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qemuBlockStorageSourceCreateFormat skipped the creation if the requested
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image was raw but didn't take into account the encryption.
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This manifested itself e.g. when attempting to do a virsh blockcopy with
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the following XML:
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<disk type='file' device='disk'>
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<driver name='qemu' type='raw'/>
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<source file='/tmp/enccpy'>
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<encryption format='luks'>
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<secret type='passphrase' uuid='0a81f5b2-8403-7b23-c8d6-21ccc2f80d6f'/>
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</encryption>
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</source>
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</disk>
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Where qemu would report the following error:
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unable to execute QEMU command 'blockdev-add': Volume is not in LUKS format
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rather than actually formatting the image first.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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(cherry picked from commit f4e7c792d58cbd7318fc30519c551e4fe0cd98de)
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https://bugzilla.redhat.com/show_bug.cgi?id=1371022
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Message-Id: <1a89d76526af86e4d0437852802a5da0d2aed701.1580824112.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/qemu/qemu_block.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/qemu/qemu_block.c b/src/qemu/qemu_block.c
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index eab21bc107..22f03da485 100644
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--- a/src/qemu/qemu_block.c
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+++ b/src/qemu/qemu_block.c
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@@ -2479,7 +2479,8 @@ qemuBlockStorageSourceCreateFormat(virDomainObjPtr vm,
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g_autoptr(virJSONValue) createformatprops = NULL;
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int ret;
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- if (src->format == VIR_STORAGE_FILE_RAW)
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+ if (src->format == VIR_STORAGE_FILE_RAW &&
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+ !src->encryption)
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return 0;
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if (qemuBlockStorageSourceCreateGetFormatProps(src, backingStore,
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--
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2.25.0
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