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qemu: command: Use JSON for QAPIfied -object directly

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Skip the lossy conversion to legacy commandline arguments by using the
JSON props directly when -object is QAPIfied. This avoids issues with
conversion of bitmaps and also allows validation of the generated JSON
against the QMP schema in the tests.

Since the new approach is triggered by a qemu capability the code
from 'virQEMUBuildObjectCommandlineFromJSON' in util/virqemu.c was moved
to 'qemuBuildObjectCommandlineFromJSON' in qemu/qemu_command.c which has
the virQEMUCaps type.

Some functions needed to be modified to propagate qemuCaps.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Peter Krempa 2021-03-12 15:44:19 +01:00
parent 96850dfe21
commit 4f33b817b2
4 changed files with 63 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/libvirt_private.syms
View File

@ -3065,7 +3065,6 @@ virQEMUBuildCommandLineJSONArrayBitmap;
virQEMUBuildCommandLineJSONArrayNumbered;
virQEMUBuildDriveCommandlineFromJSON;
virQEMUBuildNetdevCommandlineFromJSON;
virQEMUBuildObjectCommandlineFromJSON;
# util/virrandom.h

92
src/qemu/qemu_command.c
View File

@ -192,6 +192,31 @@ VIR_ENUM_IMPL(qemuAudioDriver,
);
static int
qemuBuildObjectCommandlineFromJSON(virBuffer *buf,
virJSONValue *props,
virQEMUCaps *qemuCaps)
{
const char *type = virJSONValueObjectGetString(props, "qom-type");
const char *alias = virJSONValueObjectGetString(props, "id");
if (!type || !alias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing 'type'(%s) or 'alias'(%s) field of QOM 'object'"),
NULLSTR(type), NULLSTR(alias));
return -1;
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_QAPIFIED)) {
return virJSONValueToBuffer(props, buf, false);
} else {
virBufferAsprintf(buf, "%s,", type);
return virQEMUBuildCommandLineJSON(props, buf, "qom-type",
virQEMUBuildCommandLineJSONArrayBitmap);
}
}
/**
* qemuBuildMasterKeyCommandLine:
@ -238,7 +263,7 @@ qemuBuildMasterKeyCommandLine(virCommandPtr cmd,
NULL) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -714,6 +739,7 @@ qemuBuildSecretInfoProps(qemuDomainSecretInfoPtr secinfo,
* qemuBuildObjectSecretCommandLine:
* @cmd: the command to modify
* @secinfo: pointer to the secret info object
* @qemuCaps: qemu capabilities
*
* If the secinfo is available and associated with an AES secret,
* then format the command line for the secret object. This object
@ -724,7 +750,8 @@ qemuBuildSecretInfoProps(qemuDomainSecretInfoPtr secinfo,
*/
static int
qemuBuildObjectSecretCommandLine(virCommandPtr cmd,
qemuDomainSecretInfoPtr secinfo)
qemuDomainSecretInfoPtr secinfo,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
@ -732,7 +759,7 @@ qemuBuildObjectSecretCommandLine(virCommandPtr cmd,
if (qemuBuildSecretInfoProps(secinfo, &props) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -901,7 +928,7 @@ qemuBuildTLSx509CommandLine(virCommandPtr cmd,
certEncSecretAlias, qemuCaps, &props) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -1991,14 +2018,15 @@ qemuBuildFloppyCommandLineControllerOptions(virCommandPtr cmd,
static int
qemuBuildObjectCommandline(virCommandPtr cmd,
virJSONValuePtr objProps)
virJSONValuePtr objProps,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
if (!objProps)
return 0;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, objProps) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, objProps, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -2010,16 +2038,17 @@ qemuBuildObjectCommandline(virCommandPtr cmd,
static int
qemuBuildBlockStorageSourceAttachDataCommandline(virCommandPtr cmd,
qemuBlockStorageSourceAttachDataPtr data)
qemuBlockStorageSourceAttachDataPtr data,
virQEMUCaps *qemuCaps)
{
char *tmp;
if (qemuBuildObjectCommandline(cmd, data->prmgrProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->authsecretProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->encryptsecretProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->httpcookiesecretProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsKeySecretProps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsProps) < 0)
if (qemuBuildObjectCommandline(cmd, data->prmgrProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->authsecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->encryptsecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->httpcookiesecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsKeySecretProps, qemuCaps) < 0 ||
qemuBuildObjectCommandline(cmd, data->tlsProps, qemuCaps) < 0)
return -1;
if (data->driveCmd)
@ -2088,7 +2117,8 @@ qemuBuildDiskSourceCommandLine(virCommandPtr cmd,
for (i = data->nsrcdata; i > 0; i--) {
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd,
data->srcdata[i - 1]) < 0)
data->srcdata[i - 1],
qemuCaps) < 0)
return -1;
}
@ -3318,7 +3348,7 @@ qemuBuildMemoryCellBackendStr(virDomainDefPtr def,
priv, def, &mem, false, false)) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(buf, props, priv->qemuCaps) < 0)
return -1;
return rc;
@ -3347,7 +3377,7 @@ qemuBuildMemoryDimmBackendStr(virBufferPtr buf,
priv, def, mem, true, false) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(buf, props, priv->qemuCaps) < 0)
return -1;
return 0;
@ -4971,7 +5001,8 @@ qemuBuildChrChardevStr(virLogManagerPtr logManager,
* functions can just check the config fields */
if (chrSourcePriv && chrSourcePriv->secinfo) {
if (qemuBuildObjectSecretCommandLine(cmd,
chrSourcePriv->secinfo) < 0)
chrSourcePriv->secinfo,
qemuCaps) < 0)
return NULL;
tlsCertEncSecAlias = chrSourcePriv->secinfo->s.aes.alias;
@ -5209,7 +5240,7 @@ qemuBuildHostdevSCSICommandLine(virCommandPtr cmd,
if (!(data = qemuBuildHostdevSCSIAttachPrepare(hostdev, &backendAlias, qemuCaps)))
return -1;
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd, data) < 0)
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd, data, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-device");
@ -5615,7 +5646,7 @@ qemuBuildRNGCommandLine(virLogManagerPtr logManager,
if (qemuBuildRNGBackendProps(rng, &props) < 0)
return -1;
rc = virQEMUBuildObjectCommandlineFromJSON(&buf, props);
rc = qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps);
if (rc < 0)
return -1;
@ -7192,7 +7223,7 @@ qemuBuildMemCommandLineMemoryDefaultBackend(virCommandPtr cmd,
priv, def, &mem, false, true) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -7265,7 +7296,8 @@ qemuBuildMemCommandLine(virCommandPtr cmd,
static int
qemuBuildIOThreadCommandLine(virCommandPtr cmd,
const virDomainDef *def)
const virDomainDef *def,
virQEMUCaps *qemuCaps)
{
size_t i;
@ -7280,7 +7312,7 @@ qemuBuildIOThreadCommandLine(virCommandPtr cmd,
if (qemuMonitorCreateObjectProps(&props, "iothread", alias, NULL) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -8098,7 +8130,8 @@ qemuBuildGraphicsVNCCommandLine(virQEMUDriverConfigPtr cfg,
if (gfxPriv->secinfo) {
if (qemuBuildObjectSecretCommandLine(cmd,
gfxPriv->secinfo) < 0)
gfxPriv->secinfo,
qemuCaps) < 0)
return -1;
secretAlias = gfxPriv->secinfo->s.aes.alias;
}
@ -9149,7 +9182,7 @@ qemuBuildShmemCommandLine(virLogManagerPtr logManager,
if (!(memProps = qemuBuildShmemBackendMemProps(shmem)))
return -1;
rc = virQEMUBuildObjectCommandlineFromJSON(&buf, memProps);
rc = qemuBuildObjectCommandlineFromJSON(&buf, memProps, qemuCaps);
if (rc < 0)
return -1;
@ -9903,7 +9936,7 @@ qemuBuildSEVCommandLine(virDomainObjPtr vm, virCommandPtr cmd,
NULL) < 0)
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -10021,7 +10054,7 @@ qemuBuildManagedPRCommandLine(virCommandPtr cmd,
if (!(props = qemuBuildPRManagedManagerInfoProps(priv)))
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -10045,7 +10078,8 @@ qemuBuildPflashBlockdevOne(virCommandPtr cmd,
for (i = data->nsrcdata; i > 0; i--) {
if (qemuBuildBlockStorageSourceAttachDataCommandline(cmd,
data->srcdata[i - 1]) < 0)
data->srcdata[i - 1],
qemuCaps) < 0)
return -1;
}
@ -10110,7 +10144,7 @@ qemuBuildDBusVMStateCommandLine(virCommandPtr cmd,
if (!(props = qemuBuildDBusVMStateInfoProps(driver, vm)))
return -1;
if (virQEMUBuildObjectCommandlineFromJSON(&buf, props) < 0)
if (qemuBuildObjectCommandlineFromJSON(&buf, props, priv->qemuCaps) < 0)
return -1;
virCommandAddArg(cmd, "-object");
@ -10385,7 +10419,7 @@ qemuBuildCommandLine(virQEMUDriverPtr driver,
if (qemuBuildSmpCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildIOThreadCommandLine(cmd, def) < 0)
if (qemuBuildIOThreadCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (virDomainNumaGetNodeCount(def->numa) &&

24
src/util/virqemu.c
View File

@ -303,30 +303,6 @@ virQEMUBuildNetdevCommandlineFromJSON(virJSONValuePtr props,
}
int
virQEMUBuildObjectCommandlineFromJSON(virBufferPtr buf,
virJSONValuePtr objprops)
{
const char *type = virJSONValueObjectGetString(objprops, "qom-type");
const char *alias = virJSONValueObjectGetString(objprops, "id");
if (!type || !alias) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("missing 'type'(%s) or 'alias'(%s) field of QOM 'object'"),
NULLSTR(type), NULLSTR(alias));
return -1;
}
virBufferAsprintf(buf, "%s,", type);
if (virQEMUBuildCommandLineJSON(objprops, buf, "qom-type",
virQEMUBuildCommandLineJSONArrayBitmap) < 0)
return -1;
return 0;
}
char *
virQEMUBuildDriveCommandlineFromJSON(virJSONValuePtr srcdef)
{

3
src/util/virqemu.h
View File

@ -48,9 +48,6 @@ char *
virQEMUBuildNetdevCommandlineFromJSON(virJSONValuePtr props,
bool rawjson);
int virQEMUBuildObjectCommandlineFromJSON(virBufferPtr buf,
virJSONValuePtr objprops);
char *virQEMUBuildDriveCommandlineFromJSON(virJSONValuePtr src);
void virQEMUBuildBufferEscapeComma(virBufferPtr buf, const char *str);