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qemu: block: Split up formatting of JSON props for 'raw' and 'luks' drivers

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qemuBlockStorageSourceGetFormatRawProps aggregated both formats but
since we now have props specific for either of those formats it's
unwanted to aggregate the code such way. Split out the 'luks' props
formatter into qemuBlockStorageSourceGetFormatLUKSProps.

The wrong separation demonstrates istself on formatting of the 'size'
and 'offset' attributes for the 'luks' driver which does not conform
to the qapi schema.

https://bugzilla.redhat.com/show_bug.cgi?id=1814975

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2020-03-19 17:23:33 +01:00
parent 7393be3bbc
commit 1a86e3b24a
2 changed files with 29 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/qemu/qemu_block.c
View File

@ -1200,24 +1200,32 @@ qemuBlockStorageSourceGetBackendProps(virStorageSourcePtr src,
static int
qemuBlockStorageSourceGetFormatRawProps(virStorageSourcePtr src,
qemuBlockStorageSourceGetFormatLUKSProps(virStorageSourcePtr src,
virJSONValuePtr props)
{
qemuDomainStorageSourcePrivatePtr srcPriv = QEMU_DOMAIN_STORAGE_SOURCE_PRIVATE(src);
const char *driver = "raw";
const char *secretalias = NULL;
if (src->encryption &&
src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS &&
srcPriv &&
srcPriv->encinfo) {
driver = "luks";
secretalias = srcPriv->encinfo->s.aes.alias;
if (!srcPriv || !srcPriv->encinfo || !srcPriv->encinfo->s.aes.alias) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("missing secret info for 'luks' driver"));
return -1;
}
if (virJSONValueObjectAdd(props,
"s:driver", driver,
"S:key-secret", secretalias, NULL) < 0)
"s:driver", "luks",
"s:key-secret", srcPriv->encinfo->s.aes.alias,
NULL) < 0)
return -1;
return 0;
}
static int
qemuBlockStorageSourceGetFormatRawProps(virStorageSourcePtr src,
virJSONValuePtr props)
{
if (virJSONValueObjectAdd(props, "s:driver", "raw", NULL) < 0)
return -1;
/* Currently only storage slices are supported. We'll have to calculate
@ -1371,8 +1379,14 @@ qemuBlockStorageSourceGetBlockdevFormatProps(virStorageSourcePtr src)
/* The fat layer is emulated by the storage access layer, so we need to
* put a raw layer on top */
case VIR_STORAGE_FILE_RAW:
if (src->encryption &&
src->encryption->format == VIR_STORAGE_ENCRYPTION_FORMAT_LUKS) {
if (qemuBlockStorageSourceGetFormatLUKSProps(src, props) < 0)
return NULL;
} else {
if (qemuBlockStorageSourceGetFormatRawProps(src, props) < 0)
return NULL;
}
break;
case VIR_STORAGE_FILE_QCOW2:

2
tests/qemuxml2argvdata/disk-slices.x86_64-latest.args
View File

@ -56,7 +56,7 @@ keyid=masterKey0,iv=AAECAwQFBgcICQoLDA0ODw==,format=base64 \
"size":321,"file":"libvirt-1-storage","auto-read-only":true,\
"discard":"unmap"}' \
-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"luks",\
"key-secret":"libvirt-1-format-encryption-secret0","offset":1234,"size":321,\
"key-secret":"libvirt-1-format-encryption-secret0",\
"file":"libvirt-1-slice-sto"}' \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=libvirt-1-format,\
id=virtio-disk2 \