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qemu: block: Split up qemuBlockStorageSourceAttachApply

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Split up the addition of a storage source into the following sub-steps:
1) storage access dependencies (TLS transport, persistent reservation)
2) storage acccess node (file/gluster/nbd...)
3) format driver dependencies (encryption secret)
4) format driver node (qcow2, raw, ...)

The functions split out will be later reused when implementing support
for 'blockdev-create' as we'll need the dependencies plugged in first,
then blockdev-create will be called and after that successfully finishes
blockdev-add will be added.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2019-05-27 17:30:12 +02:00
parent 16ca234b56
commit 35e3069ce4
1 changed files with 78 additions and 38 deletions
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116
src/qemu/qemu_block.c
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@ -1450,6 +1450,80 @@ qemuBlockStorageSourceAttachPrepareBlockdev(virStorageSourcePtr src)
}
static int
qemuBlockStorageSourceAttachApplyStorageDeps(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
if (data->prmgrProps &&
qemuMonitorAddObject(mon, &data->prmgrProps, &data->prmgrAlias) < 0)
return -1;
if (data->authsecretProps &&
qemuMonitorAddObject(mon, &data->authsecretProps,
&data->authsecretAlias) < 0)
return -1;
if (data->tlsProps &&
qemuMonitorAddObject(mon, &data->tlsProps, &data->tlsAlias) < 0)
return -1;
return 0;
}
static int
qemuBlockStorageSourceAttachApplyStorage(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
int rv;
if (data->storageProps) {
rv = qemuMonitorBlockdevAdd(mon, data->storageProps);
data->storageProps = NULL;
if (rv < 0)
return -1;
data->storageAttached = true;
}
return 0;
}
static int
qemuBlockStorageSourceAttachApplyFormatDeps(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
if (data->encryptsecretProps &&
qemuMonitorAddObject(mon, &data->encryptsecretProps,
&data->encryptsecretAlias) < 0)
return -1;
return 0;
}
static int
qemuBlockStorageSourceAttachApplyFormat(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
int rv;
if (data->formatProps) {
rv = qemuMonitorBlockdevAdd(mon, data->formatProps);
data->formatProps = NULL;
if (rv < 0)
return -1;
data->formatAttached = true;
}
return 0;
}
/**
* qemuBlockStorageSourceAttachApply:
* @mon: monitor object
@ -1467,46 +1541,12 @@ int
qemuBlockStorageSourceAttachApply(qemuMonitorPtr mon,
qemuBlockStorageSourceAttachDataPtr data)
{
int rv;
if (data->prmgrProps &&
qemuMonitorAddObject(mon, &data->prmgrProps, &data->prmgrAlias) < 0)
if (qemuBlockStorageSourceAttachApplyStorageDeps(mon, data) < 0 ||
qemuBlockStorageSourceAttachApplyStorage(mon, data) < 0 ||
qemuBlockStorageSourceAttachApplyFormatDeps(mon, data) < 0 ||
qemuBlockStorageSourceAttachApplyFormat(mon, data) < 0)
return -1;
if (data->authsecretProps &&
qemuMonitorAddObject(mon, &data->authsecretProps,
&data->authsecretAlias) < 0)
return -1;
if (data->encryptsecretProps &&
qemuMonitorAddObject(mon, &data->encryptsecretProps,
&data->encryptsecretAlias) < 0)
return -1;
if (data->tlsProps &&
qemuMonitorAddObject(mon, &data->tlsProps, &data->tlsAlias) < 0)
return -1;
if (data->storageProps) {
rv = qemuMonitorBlockdevAdd(mon, data->storageProps);
data->storageProps = NULL;
if (rv < 0)
return -1;
data->storageAttached = true;
}
if (data->formatProps) {
rv = qemuMonitorBlockdevAdd(mon, data->formatProps);
data->formatProps = NULL;
if (rv < 0)
return -1;
data->formatAttached = true;
}
if (data->driveCmd) {
if (qemuMonitorAddDrive(mon, data->driveCmd) < 0)
return -1;